5 use POSIX
qw(EINTR EEXIST EOPNOTSUPP);
7 use Socket
qw(AF_INET AF_INET6 AI_ALL AI_V4MAPPED AI_CANONNAME SOCK_DGRAM
11 use File
::Path
qw(make_path);
12 use Filesys
::Df
(); # don't overwrite our df()
18 use Fcntl
qw(:DEFAULT :flock);
25 use String
::ShellQuote
;
26 use Time
::HiRes
qw(usleep gettimeofday tv_interval alarm);
27 use Scalar
::Util
'weaken';
28 use Date
::Format
qw(time2str);
32 # avoid warning when parsing long hex values with hex()
33 no warnings
'portable'; # Support for 64-bit ints required
51 extract_sensitive_params
66 my $pvelogdir = "/var/log/pve";
67 my $pvetaskdir = "$pvelogdir/tasks";
72 my $IPV4OCTET = "(?:25[0-5]|(?:2[0-4]|1[0-9]|[1-9])?[0-9])";
73 our $IPV4RE = "(?:(?:$IPV4OCTET\\.){3}$IPV4OCTET)";
74 my $IPV6H16 = "(?:[0-9a-fA-F]{1,4})";
75 my $IPV6LS32 = "(?:(?:$IPV4RE|$IPV6H16:$IPV6H16))";
78 "(?:(?:" . "(?:$IPV6H16:){6})$IPV6LS32)|" .
79 "(?:(?:" . "::(?:$IPV6H16:){5})$IPV6LS32)|" .
80 "(?:(?:(?:" . "$IPV6H16)?::(?:$IPV6H16:){4})$IPV6LS32)|" .
81 "(?:(?:(?:(?:$IPV6H16:){0,1}$IPV6H16)?::(?:$IPV6H16:){3})$IPV6LS32)|" .
82 "(?:(?:(?:(?:$IPV6H16:){0,2}$IPV6H16)?::(?:$IPV6H16:){2})$IPV6LS32)|" .
83 "(?:(?:(?:(?:$IPV6H16:){0,3}$IPV6H16)?::(?:$IPV6H16:){1})$IPV6LS32)|" .
84 "(?:(?:(?:(?:$IPV6H16:){0,4}$IPV6H16)?::" . ")$IPV6LS32)|" .
85 "(?:(?:(?:(?:$IPV6H16:){0,5}$IPV6H16)?::" . ")$IPV6H16)|" .
86 "(?:(?:(?:(?:$IPV6H16:){0,6}$IPV6H16)?::" . ")))";
88 our $IPRE = "(?:$IPV4RE|$IPV6RE)";
90 our $EMAIL_USER_RE = qr/[\w\+\-\~]+(\.[\w\+\-\~]+)*/;
91 our $EMAIL_RE = qr/$EMAIL_USER_RE@[a-zA-Z0-9\-]+(\.[a-zA-Z0-9\-]+)*/;
93 use constant {CLONE_NEWNS
=> 0x00020000,
94 CLONE_NEWUTS
=> 0x04000000,
95 CLONE_NEWIPC
=> 0x08000000,
96 CLONE_NEWUSER
=> 0x10000000,
97 CLONE_NEWPID
=> 0x20000000,
98 CLONE_NEWNET
=> 0x40000000};
100 use constant {O_PATH
=> 0x00200000,
101 O_CLOEXEC
=> 0x00080000,
102 O_TMPFILE
=> 0x00410000}; # This includes O_DIRECTORY
104 use constant {AT_EMPTY_PATH
=> 0x1000,
107 sub run_with_timeout
{
108 my ($timeout, $code, @param) = @_;
110 die "got timeout\n" if $timeout <= 0;
112 my $prev_alarm = alarm 0; # suspend outer alarm early
119 local $SIG{ALRM
} = sub { $sigcount++; die "got timeout\n"; };
120 local $SIG{PIPE
} = sub { $sigcount++; die "broken pipe\n" };
121 local $SIG{__DIE__
}; # see SA bug 4631
125 eval { $res = &$code(@param); };
127 alarm(0); # avoid race conditions
136 # this shouldn't happen anymore?
137 die "unknown error" if $sigcount && !$err; # seems to happen sometimes
144 # flock: we use one file handle per process, so lock file
145 # can be nested multiple times and succeeds for the same process.
147 # Since this is the only way we lock now and we don't have the old
148 # 'lock(); code(); unlock();' pattern anymore we do not actually need to
149 # count how deep we're nesting. Therefore this hash now stores a weak reference
150 # to a boolean telling us whether we already have a lock.
152 my $lock_handles = {};
155 my ($filename, $timeout, $shared, $code, @param) = @_;
157 $timeout = 10 if !$timeout;
159 my $mode = $shared ? LOCK_SH
: LOCK_EX
;
161 my $lockhash = ($lock_handles->{$$} //= {});
163 # Returns a locked file handle.
164 my $get_locked_file = sub {
165 my $fh = IO
::File-
>new(">>$filename")
166 or die "can't open file - $!\n";
168 if (!flock($fh, $mode|LOCK_NB
)) {
169 print STDERR
"trying to acquire lock...\n";
172 $success = flock($fh, $mode);
173 # try again on EINTR (see bug #273)
174 if ($success || ($! != EINTR
)) {
179 print STDERR
" failed\n";
180 die "can't acquire lock '$filename' - $!\n";
182 print STDERR
" OK\n";
189 my $checkptr = $lockhash->{$filename};
190 my $check = 0; # This must not go out of scope before running the code.
191 my $local_fh; # This must stay local
192 if (!$checkptr || !$$checkptr) {
193 # We cannot create a weak reference in a single atomic step, so we first
194 # create a false-value, then create a reference to it, then weaken it,
195 # and after successfully locking the file we change the boolean value.
197 # The reason for this is that if an outer SIGALRM throws an exception
198 # between creating the reference and weakening it, a subsequent call to
199 # lock_file_full() will see a leftover full reference to a valid
200 # variable. This variable must be 0 in order for said call to attempt to
201 # lock the file anew.
203 # An externally triggered exception elsewhere in the code will cause the
204 # weak reference to become 'undef', and since the file handle is only
205 # stored in the local scope in $local_fh, the file will be closed by
206 # perl's cleanup routines as well.
208 # This still assumes that an IO::File handle can properly deal with such
209 # exceptions thrown during its own destruction, but that's up to perls
211 $lockhash->{$filename} = \
$check;
212 weaken
$lockhash->{$filename};
213 $local_fh = eval { run_with_timeout
($timeout, $get_locked_file) };
215 $@ = "can't lock file '$filename' - $@";
220 $res = eval { &$code(@param); };
227 my ($filename, $timeout, $code, @param) = @_;
229 return lock_file_full
($filename, $timeout, 0, $code, @param);
232 sub file_set_contents
{
233 my ($filename, $data, $perm) = @_;
235 $perm = 0644 if !defined($perm);
237 my $tmpname = "$filename.tmp.$$";
240 my ($fh, $tries) = (undef, 0);
241 while (!$fh && $tries++ < 3) {
242 $fh = IO
::File-
>new($tmpname, O_WRONLY
|O_CREAT
|O_EXCL
, $perm);
243 if (!$fh && $! == EEXIST
) {
244 unlink($tmpname) or die "unable to delete old temp file: $!\n";
247 die "unable to open file '$tmpname' - $!\n" if !$fh;
248 die "unable to write '$tmpname' - $!\n" unless print $fh $data;
249 die "closing file '$tmpname' failed - $!\n" unless close $fh;
258 if (!rename($tmpname, $filename)) {
259 my $msg = "close (rename) atomic file '$filename' failed: $!\n";
265 sub file_get_contents
{
266 my ($filename, $max) = @_;
268 my $fh = IO
::File-
>new($filename, "r") ||
269 die "can't open '$filename' - $!\n";
271 my $content = safe_read_from
($fh, $max, 0, $filename);
279 my ($filename, $dst, $max, $perm) = @_;
281 file_set_contents
($dst, file_get_contents
($filename, $max), $perm);
284 sub file_read_firstline
{
287 my $fh = IO
::File-
>new ($filename, "r");
288 return undef if !$fh;
296 my ($fh, $max, $oneline, $filename) = @_;
298 # pmxcfs file size limit
299 $max = 512*1024 if !$max;
301 my $subject = defined($filename) ?
"file '$filename'" : 'input';
306 while ($count = sysread($fh, $input, 8192, $br)) {
308 die "$subject too long - aborting\n" if $br > $max;
309 if ($oneline && $input =~ m/^(.*)\n/) {
314 die "unable to read $subject - $!\n" if !defined($count);
319 # The $cmd parameter can be:
321 # This is generally executed by passing it to the shell with the -c option.
322 # However, it can be executed in one of two ways, depending on whether
323 # there's a pipe involved:
324 # *) with pipe: passed explicitly to bash -c, prefixed with:
326 # *) without a pipe: passed to perl's open3 which uses 'sh -c'
327 # (Note that this may result in two different syntax requirements!)
329 # -) an array of arguments (strings)
330 # Will be executed without interference from a shell. (Parameters are passed
331 # as is, no escape sequences of strings will be touched.)
332 # -) an array of arrays
333 # Each array represents a command, and each command's output is piped into
334 # the following command's standard input.
335 # For this a shell command string is created with pipe symbols between each
337 # Each command is a list of strings meant to end up in the final command
338 # unchanged. In order to achieve this, every argument is shell-quoted.
339 # Quoting can be disabled for a particular argument by turning it into a
340 # reference, this allows inserting arbitrary shell options.
341 # For instance: the $cmd [ [ 'echo', 'hello', \'>/dev/null' ] ] will not
342 # produce any output, while the $cmd [ [ 'echo', 'hello', '>/dev/null' ] ]
343 # will literally print: hello >/dev/null
345 my ($cmd, %param) = @_;
350 if (my $ref = ref($cmd)) {
351 if (ref($cmd->[0])) {
352 $cmdstr = 'set -o pipefail && ';
354 foreach my $command (@$cmd) {
355 # concatenate quoted parameters
356 # strings which are passed by reference are NOT shell quoted
357 $cmdstr .= $pipe . join(' ', map { ref($_) ?
$$_ : shellquote
($_) } @$command);
360 $cmd = [ '/bin/bash', '-c', "$cmdstr" ];
362 $cmdstr = cmd2string
($cmd);
367 # see 'man bash' for option pipefail
368 $cmd = [ '/bin/bash', '-c', "set -o pipefail && $cmd" ];
393 foreach my $p (keys %param) {
394 if ($p eq 'timeout') {
395 $timeout = $param{$p};
396 } elsif ($p eq 'umask') {
397 $old_umask = umask($param{$p});
398 } elsif ($p eq 'errmsg') {
399 $errmsg = $param{$p};
400 } elsif ($p eq 'input') {
402 } elsif ($p eq 'output') {
403 $output = $param{$p};
404 } elsif ($p eq 'outfunc') {
405 $outfunc = $param{$p};
406 } elsif ($p eq 'errfunc') {
407 $errfunc = $param{$p};
408 } elsif ($p eq 'logfunc') {
409 $logfunc = $param{$p};
410 } elsif ($p eq 'afterfork') {
411 $afterfork = $param{$p};
412 } elsif ($p eq 'noerr') {
414 } elsif ($p eq 'keeplocale') {
415 $keeplocale = $param{$p};
416 } elsif ($p eq 'quiet') {
419 die "got unknown parameter '$p' for run_command\n";
424 my $origerrfunc = $errfunc;
428 &$origerrfunc("$laststderr\n");
430 print STDERR
"$laststderr\n" if $laststderr;
437 my $reader = $output && $output =~ m/^>&/ ?
$output : IO
::File-
>new();
438 my $writer = $input && $input =~ m/^<&/ ?
$input : IO
::File-
>new();
439 my $error = IO
::File-
>new();
444 local $ENV{LC_ALL
} = 'C' if !$keeplocale;
446 # suppress LVM warnings like: "File descriptor 3 left open";
447 local $ENV{LVM_SUPPRESS_FD_WARNINGS
} = "1";
449 $pid = open3
($writer, $reader, $error, @$cmd) || die $!;
451 # if we pipe fron STDIN, open3 closes STDIN, so we we
452 # a perl warning "Filehandle STDIN reopened as GENXYZ .. "
453 # as soon as we open a new file.
454 # to avoid that we open /dev/null
455 if (!ref($writer) && !defined(fileno(STDIN
))) {
457 open(STDIN
, "</dev/null");
464 if ($orig_pid != $$) {
472 local $SIG{ALRM
} = sub { die "got timeout\n"; } if $timeout;
473 $oldtimeout = alarm($timeout) if $timeout;
475 &$afterfork() if $afterfork;
478 print $writer $input if defined $input;
482 my $select = new IO
::Select
;
483 $select->add($reader) if ref($reader);
484 $select->add($error);
489 my $starttime = time();
491 while ($select->count) {
492 my @handles = $select->can_read(1);
494 foreach my $h (@handles) {
496 my $count = sysread ($h, $buf, 4096);
497 if (!defined ($count)) {
503 $select->remove ($h) if !$count;
505 if ($outfunc || $logfunc) {
507 while ($buf =~ s/^([^\010\r\n]*)(?:\n|(?:\010)+|\r\n?)//) {
508 my $line = $outlog . $1;
510 &$outfunc($line) if $outfunc;
511 &$logfunc($line) if $logfunc;
525 } elsif ($h eq $error) {
526 if ($errfunc || $logfunc) {
528 while ($buf =~ s/^([^\010\r\n]*)(?:\n|(?:\010)+|\r\n?)//) {
529 my $line = $errlog . $1;
531 &$errfunc($line) if $errfunc;
532 &$logfunc($line) if $logfunc;
550 &$outfunc($outlog) if $outfunc && $outlog;
551 &$logfunc($outlog) if $logfunc && $outlog;
553 &$errfunc($errlog) if $errfunc && $errlog;
554 &$logfunc($errlog) if $logfunc && $errlog;
559 die "failed to execute\n";
560 } elsif (my $sig = ($? & 127)) {
561 die "got signal $sig\n";
562 } elsif ($exitcode = ($? >> 8)) {
563 if (!($exitcode == 24 && ($cmdstr =~ m
|^(\S
+/)?rsync\s
|))) {
564 if ($errmsg && $laststderr) {
565 my $lerr = $laststderr;
569 die "exit code $exitcode\n";
580 if ($errmsg && $laststderr) {
581 &$errfunc(undef); # flush laststderr
584 umask ($old_umask) if defined($old_umask);
586 alarm($oldtimeout) if $oldtimeout;
589 if ($pid && ($err eq "got timeout\n")) {
592 die "command '$cmdstr' failed: $err";
596 $err =~ s/^usermod:\s*// if $cmdstr =~ m
|^(\S
+/)?usermod\s
|;
599 die "command '$cmdstr' failed: $err";
606 # Run a command with a tcp socket as standard input.
607 sub pipe_socket_to_command
{
608 my ($cmd, $ip, $port) = @_;
613 Proto
=> &Socket
::IPPROTO_TCP
,
614 GetAddrInfoFlags
=> 0,
618 my $socket = IO
::Socket
::IP-
>new(%$params) or die "failed to open socket: $!\n";
620 print "$ip\n$port\n"; # tell remote where to connect
624 local $SIG{ALRM
} = sub { die "timed out waiting for client\n" };
626 my $client = $socket->accept; # Wait for a client
630 # We want that the command talks over the TCP socket and takes
631 # ownership of it, so that when it closes it the connection is
632 # terminated, so we need to be able to close the socket. So we
633 # can't really use PVE::Tools::run_command().
634 my $pid = fork() // die "fork failed: $!\n";
636 POSIX
::dup2
(fileno($client), 0);
637 POSIX
::dup2
(fileno($client), 1);
639 exec {$cmd->[0]} @$cmd or do {
640 warn "exec failed: $!\n";
646 if (waitpid($pid, 0) != $pid) {
647 kill(15 => $pid); # if we got interrupted terminate the child
649 while (waitpid($pid, POSIX
::WNOHANG
) != $pid) {
652 kill(9 => $pid), last if $count > 300; # 30 second timeout
655 if (my $sig = ($? & 127)) {
656 die "got signal $sig\n";
657 } elsif (my $exitcode = ($? >> 8)) {
658 die "exit code $exitcode\n";
665 my $listtxt = shift // '';
667 return split (/\0/, $listtxt) if $listtxt =~ m/\0/;
669 $listtxt =~ s/[,;]/ /g;
670 $listtxt =~ s/^\s+//;
672 my @data = split (/\s+/, $listtxt);
680 return $txt if !defined($txt);
688 # simple uri templates like "/vms/{vmid}"
689 sub template_replace
{
690 my ($tmpl, $data) = @_;
692 return $tmpl if !$tmpl;
695 while ($tmpl =~ m/([^{]+)?(\{([^}]+)\})?/g) {
697 $res .= ($data->{$3} || '-') if $2;
703 my ($filename, $fh, $data) = @_;
707 my $res = print $fh $data;
709 die "write to '$filename' failed\n" if !$res;
715 'at' => 'ftp.at.debian.org',
716 'au' => 'ftp.au.debian.org',
717 'be' => 'ftp.be.debian.org',
718 'bg' => 'ftp.bg.debian.org',
719 'br' => 'ftp.br.debian.org',
720 'ca' => 'ftp.ca.debian.org',
721 'ch' => 'ftp.ch.debian.org',
722 'cl' => 'ftp.cl.debian.org',
723 'cz' => 'ftp.cz.debian.org',
724 'de' => 'ftp.de.debian.org',
725 'dk' => 'ftp.dk.debian.org',
726 'ee' => 'ftp.ee.debian.org',
727 'es' => 'ftp.es.debian.org',
728 'fi' => 'ftp.fi.debian.org',
729 'fr' => 'ftp.fr.debian.org',
730 'gr' => 'ftp.gr.debian.org',
731 'hk' => 'ftp.hk.debian.org',
732 'hr' => 'ftp.hr.debian.org',
733 'hu' => 'ftp.hu.debian.org',
734 'ie' => 'ftp.ie.debian.org',
735 'is' => 'ftp.is.debian.org',
736 'it' => 'ftp.it.debian.org',
737 'jp' => 'ftp.jp.debian.org',
738 'kr' => 'ftp.kr.debian.org',
739 'mx' => 'ftp.mx.debian.org',
740 'nl' => 'ftp.nl.debian.org',
741 'no' => 'ftp.no.debian.org',
742 'nz' => 'ftp.nz.debian.org',
743 'pl' => 'ftp.pl.debian.org',
744 'pt' => 'ftp.pt.debian.org',
745 'ro' => 'ftp.ro.debian.org',
746 'ru' => 'ftp.ru.debian.org',
747 'se' => 'ftp.se.debian.org',
748 'si' => 'ftp.si.debian.org',
749 'sk' => 'ftp.sk.debian.org',
750 'tr' => 'ftp.tr.debian.org',
751 'tw' => 'ftp.tw.debian.org',
752 'gb' => 'ftp.uk.debian.org',
753 'us' => 'ftp.us.debian.org',
758 'dk' => ['Danish', 'da', 'qwerty/dk-latin1.kmap.gz', 'dk', 'nodeadkeys'],
759 'de' => ['German', 'de', 'qwertz/de-latin1-nodeadkeys.kmap.gz', 'de', 'nodeadkeys' ],
760 'de-ch' => ['Swiss-German', 'de-ch', 'qwertz/sg-latin1.kmap.gz', 'ch', 'de_nodeadkeys' ],
761 'en-gb' => ['United Kingdom', 'en-gb', 'qwerty/uk.kmap.gz' , 'gb', undef],
762 'en-us' => ['U.S. English', 'en-us', 'qwerty/us-latin1.kmap.gz', 'us', undef ],
763 'es' => ['Spanish', 'es', 'qwerty/es.kmap.gz', 'es', 'nodeadkeys'],
764 #'et' => [], # Ethopia or Estonia ??
765 'fi' => ['Finnish', 'fi', 'qwerty/fi-latin1.kmap.gz', 'fi', 'nodeadkeys'],
766 #'fo' => ['Faroe Islands', 'fo', ???, 'fo', 'nodeadkeys'],
767 'fr' => ['French', 'fr', 'azerty/fr-latin1.kmap.gz', 'fr', 'nodeadkeys'],
768 'fr-be' => ['Belgium-French', 'fr-be', 'azerty/be2-latin1.kmap.gz', 'be', 'nodeadkeys'],
769 'fr-ca' => ['Canada-French', 'fr-ca', 'qwerty/cf.kmap.gz', 'ca', 'fr-legacy'],
770 'fr-ch' => ['Swiss-French', 'fr-ch', 'qwertz/fr_CH-latin1.kmap.gz', 'ch', 'fr_nodeadkeys'],
771 #'hr' => ['Croatia', 'hr', 'qwertz/croat.kmap.gz', 'hr', ??], # latin2?
772 'hu' => ['Hungarian', 'hu', 'qwertz/hu.kmap.gz', 'hu', undef],
773 'is' => ['Icelandic', 'is', 'qwerty/is-latin1.kmap.gz', 'is', 'nodeadkeys'],
774 'it' => ['Italian', 'it', 'qwerty/it2.kmap.gz', 'it', 'nodeadkeys'],
775 'jp' => ['Japanese', 'ja', 'qwerty/jp106.kmap.gz', 'jp', undef],
776 'lt' => ['Lithuanian', 'lt', 'qwerty/lt.kmap.gz', 'lt', 'std'],
777 #'lv' => ['Latvian', 'lv', 'qwerty/lv-latin4.kmap.gz', 'lv', ??], # latin4 or latin7?
778 'mk' => ['Macedonian', 'mk', 'qwerty/mk.kmap.gz', 'mk', 'nodeadkeys'],
779 'nl' => ['Dutch', 'nl', 'qwerty/nl.kmap.gz', 'nl', undef],
780 #'nl-be' => ['Belgium-Dutch', 'nl-be', ?, ?, ?],
781 'no' => ['Norwegian', 'no', 'qwerty/no-latin1.kmap.gz', 'no', 'nodeadkeys'],
782 'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef],
783 'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'],
784 'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'],
785 #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # don't know?
786 'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef],
787 'se' => ['Swedish', 'sv', 'qwerty/se-latin1.kmap.gz', 'se', 'nodeadkeys'],
789 'tr' => ['Turkish', 'tr', 'qwerty/trq.kmap.gz', 'tr', undef],
792 my $kvmkeymaparray = [];
793 foreach my $lc (sort keys %$keymaphash) {
794 push @$kvmkeymaparray, $keymaphash->{$lc}->[1];
802 return $kvmkeymaparray;
806 my ($param, $key) = @_;
808 my $res = $param->{$key};
809 delete $param->{$key};
814 # For extracting sensitive keys (e.g. password), to avoid writing them to www-data owned configs
815 sub extract_sensitive_params
:prototype($$$) {
816 my ($param, $sensitive_list, $delete_list) = @_;
818 my %delete = map { $_ => 1 } ($delete_list || [])->@*;
821 for my $opt (@$sensitive_list) {
822 # handle deletions as explicitly setting `undef`, so subs which only have $param but not
823 # $delete_list available can recognize them. Afterwards new values may override.
824 if (exists($delete{$opt})) {
825 $sensitive->{$opt} = undef;
828 if (defined(my $value = extract_param
($param, $opt))) {
829 $sensitive->{$opt} = $value;
836 # Note: we use this to wait until vncterm/spiceterm is ready
837 sub wait_for_vnc_port
{
838 my ($port, $family, $timeout) = @_;
840 $timeout = 5 if !$timeout;
842 my $starttime = [gettimeofday
];
845 my $cmd = ['/bin/ss', '-Htln', "sport = :$port"];
846 push @$cmd, $family == AF_INET6 ?
'-6' : '-4' if defined($family);
849 while (($elapsed = tv_interval
($starttime)) < $timeout) {
850 # -Htln = don't print header, tcp, listening sockets only, numeric ports
851 run_command
($cmd, outfunc
=> sub {
853 if ($line =~ m/^LISTEN\s+\d+\s+\d+\s+\S+:(\d+)\s/) {
854 $found = 1 if ($port == $1);
858 $sleeptime += 100000 if $sleeptime < 1000000;
862 die "Timeout while waiting for port '$port' to get ready!\n";
865 sub next_unused_port
{
866 my ($range_start, $range_end, $family, $address) = @_;
868 # We use a file to register allocated ports.
869 # Those registrations expires after $expiretime.
870 # We use this to avoid race conditions between
871 # allocation and use of ports.
873 my $filename = "/var/tmp/pve-reserved-ports";
882 if (my $fh = IO
::File-
>new ($filename, "r")) {
883 while (my $line = <$fh>) {
884 if ($line =~ m/^(\d+)\s(\d+)$/) {
885 my ($port, $timestamp) = ($1, $2);
886 if (($timestamp + $expiretime) > $ctime) {
887 $ports->{$port} = $timestamp; # not expired
894 my %sockargs = (Listen
=> 5,
897 Proto
=> IPPROTO_TCP
,
898 GetAddrInfoFlags
=> 0);
899 $sockargs{LocalAddr
} = $address if defined($address);
901 for (my $p = $range_start; $p < $range_end; $p++) {
902 next if $ports->{$p}; # reserved
904 $sockargs{LocalPort
} = $p;
905 my $sock = IO
::Socket
::IP-
>new(%sockargs);
910 $ports->{$p} = $ctime;
916 foreach my $p (keys %$ports) {
917 $data .= "$p $ports->{$p}\n";
920 file_set_contents
($filename, $data);
925 my $p = lock_file
('/var/lock/pve-ports.lck', 10, $code);
928 die "unable to find free port (${range_start}-${range_end})\n" if !$p;
933 sub next_migrate_port
{
934 my ($family, $address) = @_;
935 return next_unused_port
(60000, 60050, $family, $address);
939 my ($family, $address) = @_;
940 return next_unused_port
(5900, 6000, $family, $address);
943 sub spice_port_range
{
944 return (61000, 61999);
947 sub next_spice_port
{
948 my ($family, $address) = @_;
949 return next_unused_port
(spice_port_range
(), $family, $address);
954 eval { $value = "$value" };
955 return "error turning value into a string: $@" if $@;
959 # sigkill after $timeout a $sub running in a fork if it can't write a pipe
960 # the $sub has to return a single scalar
961 sub run_fork_with_timeout
{
962 my ($timeout, $sub) = @_;
966 my $pipe_out = IO
::Pipe-
>new();
968 # disable pending alarms, save their remaining time
969 my $prev_alarm = alarm 0;
971 # avoid leaving a zombie if the parent gets interrupted
975 if (!defined($child)) {
976 die "fork failed: $!\n";
985 print {$pipe_out} encode_json
({ result
=> $res });
989 print {$pipe_out} encode_json
({ error
=> must_stringify
($err) });
996 local $SIG{INT
} = sub { $sig_received++; };
997 local $SIG{TERM
} = sub {
998 $error //= "interrupted by unexpected signal\n";
999 kill('TERM', $child);
1002 $pipe_out->reader();
1004 my $readvalues = sub {
1006 my $child_res = decode_json
(readline_nointr
($pipe_out));
1007 $res = $child_res->{result
};
1008 $error = $child_res->{error
};
1011 if (defined($timeout)) {
1012 run_with_timeout
($timeout, $readvalues);
1019 kill('KILL', $child);
1023 die "interrupted by unexpected signal\n" if $sig_received;
1025 die $error if $error;
1031 return run_fork_with_timeout
(undef, $code);
1034 # NOTE: NFS syscall can't be interrupted, so alarm does
1035 # not work to provide timeouts.
1036 # from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation"
1037 # So fork() before using Filesys::Df
1039 my ($path, $timeout) = @_;
1041 my $df = sub { return Filesys
::Df
::df
($path, 1) };
1043 my $res = eval { run_fork_with_timeout
($timeout, $df) } // {};
1046 # untaint, but be flexible: PB usage can result in scientific notation
1047 my ($blocks, $used, $bavail) = map { defined($_) ?
(/^([\d\.e\-+]+)$/) : 0 }
1048 $res->@{qw(blocks used bavail)};
1058 my ($path, $timeout) = @_;
1067 if ($line =~ m/^(\d+)\s+total$/) {
1072 run_command
(['du', '-scb', $path], outfunc
=> $parser, timeout
=> $timeout);
1078 # We use this to uniquely identify a process.
1079 # An 'Unique Process ID' has the following format:
1080 # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user"
1085 # Note: pstart can be > 32bit if uptime > 497 days, so this can result in
1086 # more that 8 characters for pstart
1087 return sprintf("UPID:%s:%08X:%08X:%08X:%s:%s:%s:", $d->{node
}, $d->{pid
},
1088 $d->{pstart
}, $d->{starttime
}, $d->{type
}, $d->{id
},
1093 my ($upid, $noerr) = @_;
1098 # "UPID:$node:$pid:$pstart:$startime:$dtype:$id:$user"
1099 # Note: allow up to 9 characters for pstart (work until 20 years uptime)
1100 if ($upid =~ m/^UPID:([a-zA-Z0-9]([a-zA-Z0-9\-]*[a-zA-Z0-9])?):([0-9A-Fa-f]{8}):([0-9A-Fa-f]{8,9}):([0-9A-Fa-f]{8}):([^:\s]+):([^:\s]*):([^:\s]+):$/) {
1102 $res->{pid
} = hex($3);
1103 $res->{pstart
} = hex($4);
1104 $res->{starttime
} = hex($5);
1109 my $subdir = substr($5, 7, 8);
1110 $filename = "$pvetaskdir/$subdir/$upid";
1113 return undef if $noerr;
1114 die "unable to parse worker upid '$upid'\n";
1117 return wantarray ?
($res, $filename) : $res;
1123 my ($task, $filename) = upid_decode
($upid);
1125 my $dirname = dirname
($filename);
1126 make_path
($dirname);
1128 my $wwwid = getpwnam('www-data') ||
1129 die "getpwnam failed";
1133 my $outfh = IO
::File-
>new ($filename, O_WRONLY
|O_CREAT
|O_EXCL
, $perm) ||
1134 die "unable to create output file '$filename' - $!\n";
1135 chown $wwwid, -1, $outfh;
1140 sub upid_read_status
{
1143 my ($task, $filename) = upid_decode
($upid);
1144 my $fh = IO
::File-
>new($filename, "r");
1145 return "unable to open file - $!" if !$fh;
1147 sysseek($fh, -$maxlen, 2);
1149 my $br = sysread($fh, $readbuf, $maxlen);
1152 return "unable to extract last line"
1153 if $readbuf !~ m/\n?(.+)$/;
1155 if ($line =~ m/^TASK OK$/) {
1157 } elsif ($line =~ m/^TASK ERROR: (.+)$/) {
1159 } elsif ($line =~ m/^TASK (WARNINGS: \d+)$/) {
1162 return "unexpected status";
1165 return "unable to read tail (got $br bytes)";
1168 # useful functions to store comments in config files
1172 # all control and hi-bit characters, and ':'
1173 my $unsafe = "^\x20-\x39\x3b-\x7e";
1174 return uri_escape
(Encode
::encode
("utf8", $text), $unsafe);
1180 return Encode
::decode
("utf8", uri_unescape
($data));
1183 # depreciated - do not use!
1184 # we now decode all parameters by default
1185 sub decode_utf8_parameters
{
1188 foreach my $p (qw(comment description firstname lastname)) {
1189 $param->{$p} = decode
('utf8', $param->{$p}) if $param->{$p};
1195 sub random_ether_addr
{
1198 my ($seconds, $microseconds) = gettimeofday
;
1200 my $rand = Digest
::SHA
::sha1
($$, rand(), $seconds, $microseconds);
1202 # clear multicast, set local id
1203 vec($rand, 0, 8) = (vec($rand, 0, 8) & 0xfe) | 2;
1205 my $addr = sprintf("%02X:%02X:%02X:%02X:%02X:%02X", unpack("C6", $rand));
1206 if (defined($prefix)) {
1207 $addr = uc($prefix) . substr($addr, length($prefix));
1215 return String
::ShellQuote
::shell_quote
($str);
1221 die "no arguments" if !$cmd;
1223 return $cmd if !ref($cmd);
1226 foreach my $arg (@$cmd) { push @qa, shellquote
($arg); }
1228 return join (' ', @qa);
1231 # split an shell argument string into an array,
1235 return $str ?
[ Text
::ParseWords
::shellwords
($str) ] : [];
1239 my ($filename, $start, $limit, $filter) = @_;
1244 my $fh = IO
::File-
>new($filename, "r");
1247 push @$lines, { n
=> $count, t
=> "unable to open file - $!"};
1248 return ($count, $lines);
1251 $start = 0 if !$start;
1252 $limit = 50 if !$limit;
1257 # duplicate code, so that we do not slow down normal path
1258 while (defined($line = <$fh>)) {
1259 next if $line !~ m/$filter/;
1260 next if $count++ < $start;
1261 next if $limit <= 0;
1263 push @$lines, { n
=> $count, t
=> $line};
1267 while (defined($line = <$fh>)) {
1268 next if $count++ < $start;
1269 next if $limit <= 0;
1271 push @$lines, { n
=> $count, t
=> $line};
1278 # HACK: ExtJS store.guaranteeRange() does not like empty array
1282 push @$lines, { n
=> $count, t
=> "no content"};
1285 return ($count, $lines);
1289 my ($start, $limit, $since, $until, $service) = @_;
1294 $start = 0 if !$start;
1295 $limit = 50 if !$limit;
1300 return if $count++ < $start;
1301 return if $limit <= 0;
1302 push @$lines, { n
=> int($count), t
=> $line};
1306 my $cmd = ['journalctl', '-o', 'short', '--no-pager'];
1308 push @$cmd, '--unit', $service if $service;
1309 push @$cmd, '--since', $since if $since;
1310 push @$cmd, '--until', $until if $until;
1311 run_command
($cmd, outfunc
=> $parser);
1313 # HACK: ExtJS store.guaranteeRange() does not like empty array
1317 push @$lines, { n
=> $count, t
=> "no content"};
1320 return ($count, $lines);
1323 sub dir_glob_regex
{
1324 my ($dir, $regex) = @_;
1326 my $dh = IO
::Dir-
>new ($dir);
1327 return wantarray ?
() : undef if !$dh;
1329 while (defined(my $tmp = $dh->read)) {
1330 if (my @res = $tmp =~ m/^($regex)$/) {
1332 return wantarray ?
@res : $tmp;
1337 return wantarray ?
() : undef;
1340 sub dir_glob_foreach
{
1341 my ($dir, $regex, $func) = @_;
1343 my $dh = IO
::Dir-
>new ($dir);
1345 while (defined(my $tmp = $dh->read)) {
1346 if (my @res = $tmp =~ m/^($regex)$/) {
1353 sub assert_if_modified
{
1354 my ($digest1, $digest2) = @_;
1356 if ($digest1 && $digest2 && ($digest1 ne $digest2)) {
1357 die "detected modified configuration - file changed by other user? Try again.\n";
1361 # Digest for short strings
1362 # like FNV32a, but we only return 31 bits (positive numbers)
1366 my $hval = 0x811c9dc5;
1368 foreach my $c (unpack('C*', $string)) {
1376 $hval = $hval & 0xffffffff;
1378 return $hval & 0x7fffffff;
1381 sub fnv31a_hex
{ return sprintf("%X", fnv31a
(@_)); }
1383 sub unpack_sockaddr_in46
{
1385 my $family = Socket
::sockaddr_family
($sin);
1386 my ($port, $host) = ($family == AF_INET6 ? Socket
::unpack_sockaddr_in6
($sin)
1387 : Socket
::unpack_sockaddr_in
($sin));
1388 return ($family, $port, $host);
1391 sub getaddrinfo_all
{
1392 my ($hostname, @opts) = @_;
1394 flags
=> AI_V4MAPPED
| AI_ALL
,
1397 my ($err, @res) = Socket
::getaddrinfo
($hostname, '0', \
%hints);
1398 die "failed to get address info for: $hostname: $err\n" if $err;
1402 sub get_host_address_family
{
1403 my ($hostname, $socktype) = @_;
1404 my @res = getaddrinfo_all
($hostname, socktype
=> $socktype);
1405 return $res[0]->{family
};
1408 # get the fully qualified domain name of a host
1409 # same logic as hostname(1): The FQDN is the name getaddrinfo(3) returns,
1410 # given a nodename as a parameter
1412 my ($nodename) = @_;
1415 flags
=> AI_CANONNAME
,
1416 socktype
=> SOCK_DGRAM
1419 my ($err, @addrs) = Socket
::getaddrinfo
($nodename, undef, $hints);
1421 die "getaddrinfo: $err" if $err;
1423 return $addrs[0]->{canonname
};
1426 # Parses any sane kind of host, or host+port pair:
1427 # The port is always optional and thus may be undef.
1428 sub parse_host_and_port
{
1430 if ($address =~ /^($IPV4RE|[[:alnum:]\-.]+)(?::(\d+))?$/ || # ipv4 or host with optional ':port'
1431 $address =~ /^\[($IPV6RE|$IPV4RE|[[:alnum:]\-.]+)\](?::(\d+))?$/ || # anything in brackets with optional ':port'
1432 $address =~ /^($IPV6RE)(?:\.(\d+))?$/) # ipv6 with optional port separated by dot
1434 return ($1, $2, 1); # end with 1 to support simple if(parse...) tests
1439 sub setresuid
($$$) {
1440 my ($ruid, $euid, $suid) = @_;
1441 return 0 == syscall(PVE
::Syscall
::setresuid
, $ruid, $euid, $suid);
1446 return 0 == syscall(PVE
::Syscall
::unshare
, $flags);
1450 my ($fileno, $nstype) = @_;
1451 return 0 == syscall(PVE
::Syscall
::setns
, $fileno, $nstype);
1456 return 0 == syscall(PVE
::Syscall
::syncfs
, $fileno);
1461 return 0 == syscall(PVE
::Syscall
::fsync
, $fileno);
1464 sub sync_mountpoint
{
1466 sysopen my $fd, $path, O_RDONLY
|O_CLOEXEC
or die "failed to open $path: $!\n";
1468 if (!syncfs
(fileno($fd))) {
1472 die "syncfs '$path' failed - $syncfs_err\n" if defined $syncfs_err;
1475 # support sending multi-part mail messages with a text and or a HTML part
1476 # mailto may be a single email string or an array of receivers
1478 my ($mailto, $subject, $text, $html, $mailfrom, $author) = @_;
1480 $mailto = [ $mailto ] if !ref($mailto);
1482 my $mailto_quoted = [];
1483 for my $to (@$mailto) {
1484 die "mailto does not look like a valid email address or username\n"
1485 if $to !~ /^$EMAIL_RE$/ && $to !~ /^$EMAIL_USER_RE$/;
1486 push @$mailto_quoted, shellquote
($to);
1489 my $rcvrtxt = join (', ', @$mailto);
1491 $mailfrom = $mailfrom || "root";
1492 die "mailfrom does not look like a valid email address or username\n"
1493 if $mailfrom !~ /^$EMAIL_RE$/ && $mailfrom !~ /^$EMAIL_USER_RE$/;
1494 my $mailfrom_quoted = shellquote
($mailfrom);
1496 $author = $author // 'Proxmox VE';
1498 open (MAIL
, "|-", "sendmail", "-B", "8BITMIME", "-f", $mailfrom_quoted,
1499 "--", @$mailto_quoted) || die "unable to open 'sendmail' - $!";
1501 my $date = time2str
('%a, %d %b %Y %H:%M:%S %z', time());
1503 my $is_multipart = $text && $html;
1505 # multipart spec see https://www.ietf.org/rfc/rfc1521.txt
1506 my $boundary = "----_=_NextPart_001_".int(time).$$;
1508 if ($subject =~ /[^[:ascii:]]/) {
1509 $subject = Encode
::encode
('MIME-Header', $subject);
1512 if ($subject =~ /[^[:ascii:]]/ || $is_multipart) {
1513 print MAIL
"MIME-Version: 1.0\n";
1515 print MAIL
"From: $author <$mailfrom>\n";
1516 print MAIL
"To: $rcvrtxt\n";
1517 print MAIL
"Date: $date\n";
1518 print MAIL
"Subject: $subject\n";
1520 if ($is_multipart) {
1521 print MAIL
"Content-Type: multipart/alternative;\n";
1522 print MAIL
"\tboundary=\"$boundary\"\n";
1524 print MAIL "This
is a multi-part message
in MIME format
.\n\n";
1525 print MAIL "--$boundary\n";
1528 if (defined($text)) {
1529 print MAIL "Content-Type
: text
/plain
;\n";
1530 print MAIL "\tcharset
=\"UTF-8
\"\n";
1531 print MAIL "Content-Transfer-Encoding
: 8bit
\n";
1534 # avoid 'remove extra line breaks' issue (MS Outlook)
1536 $text =~ s/^/$fill/gm;
1540 print MAIL "\n--$boundary\n" if $is_multipart;
1543 if (defined($html)) {
1544 print MAIL "Content-Type
: text
/html
;\n";
1545 print MAIL "\tcharset
=\"UTF-8
\"\n";
1546 print MAIL "Content-Transfer-Encoding
: 8bit
\n";
1551 print MAIL "\n--$boundary--\n" if $is_multipart;
1558 my ($perm, %opts) = @_;
1560 # default permissions are stricter than with file_set_contents
1561 $perm = 0600 if !defined($perm);
1563 my $dir = $opts{dir} // '/run';
1564 my $mode = $opts{mode} // O_RDWR;
1565 $mode |= O_EXCL if !$opts{allow_links};
1567 my $fh = IO::File->new($dir, $mode | O_TMPFILE, $perm);
1568 if (!$fh && $! == EOPNOTSUPP) {
1569 $dir = '/tmp' if !defined($opts{dir});
1570 $dir .= "/.tmpfile
.$$";
1571 $fh = IO::File->new($dir, $mode | O_CREAT | O_EXCL, $perm);
1572 unlink($dir) if $fh;
1574 die "failed to create tempfile
: $!\n" if !$fh;
1578 sub tempfile_contents {
1579 my ($data, $perm, %opts) = @_;
1581 my $fh = tempfile($perm, %opts);
1583 die "unable to
write to tempfile
: $!\n" if !print {$fh} $data;
1584 die "unable to flush to tempfile
: $!\n" if !defined($fh->flush());
1591 return ("/proc/$$/fd/".$fh->fileno, $fh);
1594 sub validate_ssh_public_keys {
1596 my @lines = split(/\n/, $raw);
1598 foreach my $line (@lines) {
1599 next if $line =~ m/^\s*$/;
1601 my ($filename, $handle) = tempfile_contents($line);
1602 run_command(["ssh-keygen
", "-l
", "-f
", $filename],
1603 outfunc => sub {}, errfunc => sub {});
1605 die "SSH public key validation error
\n" if $@;
1610 my ($dirfd, $pathname, $flags, $mode) = @_;
1611 my $fd = syscall(PVE::Syscall::openat, $dirfd, $pathname, $flags, $mode//0);
1612 return undef if $fd < 0;
1613 # sysopen() doesn't deal with numeric file descriptors apparently
1614 # so we need to convert to a mode string for IO::Handle->new_from_fd
1615 my $flagstr = ($flags & O_RDWR) ? 'rw' : ($flags & O_WRONLY) ? 'w' : 'r';
1616 my $handle = IO::Handle->new_from_fd($fd, $flagstr);
1617 return $handle if $handle;
1618 my $err = $!; # save error before closing the raw fd
1619 syscall(PVE::Syscall::close, $fd); # close
1625 my ($dirfd, $name, $mode) = @_;
1626 return syscall(PVE::Syscall::mkdirat, $dirfd, $name, $mode) == 0;
1629 sub fchownat($$$$$) {
1630 my ($dirfd, $pathname, $owner, $group, $flags) = @_;
1631 return syscall(PVE::Syscall::fchownat, $dirfd, $pathname, $owner, $group, $flags) == 0;
1634 my $salt_starter = time();
1640 my $salt = substr(Digest::SHA::sha1_base64(time() + $salt_starter + $$), 0, 8);
1642 # crypt does not want '+' in salt (see 'man crypt')
1645 return crypt(encode("utf8
", $pw), "\
$5\$$salt\$");
1648 # intended usage: convert_size($val, "kb
" => "gb
")
1649 # we round up to the next integer by default
1650 # E.g. `convert_size(1023, "b
" => "kb
")` returns 1
1651 # use $no_round_up to switch this off, above example would then return 0
1652 # this is also true for converting down e.g. 0.0005 gb to mb returns 1
1653 # (0 if $no_round_up is true)
1654 # allowed formats for value:
1660 my ($value, $from, $to, $no_round_up) = @_;
1671 die "no value
given"
1672 if !defined($value) || $value eq "";
1674 $from = lc($from // ''); $to = lc($to // '');
1675 die "unknown
'from' and/or 'to' units
($from => $to)"
1676 if !defined($units->{$from}) || !defined($units->{$to});
1678 die "value
'$value' is not a valid
, positive number
"
1679 if $value !~ m/^(?:[0-9]+\.?[0-9]*|[0-9]*\.[0-9]+)$/;
1681 my $shift_amount = ($units->{$from} - $units->{$to}) * 10;
1683 $value *= 2**$shift_amount;
1684 $value++ if !$no_round_up && ($value - int($value)) > 0.0;
1689 # uninterruptible readline
1691 sub readline_nointr {
1696 last if defined($line) || ($! != EINTR);
1703 $host_arch = (POSIX::uname())[4] if !$host_arch;
1707 # Devices are: [ (12 bits minor) (12 bits major) (8 bits minor) ]
1708 sub dev_t_major($) {
1710 return (int($dev_t) & 0xfff00) >> 8;
1713 sub dev_t_minor($) {
1715 $dev_t = int($dev_t);
1716 return (($dev_t >> 12) & 0xfff00) | ($dev_t & 0xff);
1719 # Given an array of array refs [ \[a b c], \[a b b], \[e b a] ]
1720 # Returns the intersection of elements as a single array [a b]
1721 sub array_intersect {
1724 if (!ref($arrays->[0])) {
1725 $arrays = [ grep { ref($_) eq 'ARRAY' } @_ ];
1728 return [] if scalar(@$arrays) == 0;
1729 return $arrays->[0] if scalar(@$arrays) == 1;
1731 my $array_unique = sub {
1733 return grep { ! $seen{ $_ }++ } @_;
1736 # base idea is to get all unique members from the first array, then
1737 # check the common elements with the next (uniquely made) one, only keep
1738 # those. Repeat for every array and at the end we only have those left
1739 # which exist in all arrays
1740 my $return_arr = [ $array_unique->(@{$arrays->[0]}) ];
1741 for my $i (1 .. $#$arrays) {
1743 # $return_arr is already unique, explicit at before the loop, implicit below.
1744 foreach my $element (@$return_arr, $array_unique->(@{$arrays->[$i]})) {
1748 foreach my $element (keys %count) {
1749 push @$return_arr, $element if $count{$element} > 1;
1751 last if scalar(@$return_arr) == 0; # empty intersection, early exit
1757 sub open_tree($$$) {
1758 my ($dfd, $pathname, $flags) = @_;
1759 return PVE::Syscall::file_handle_result(syscall(
1760 &PVE::Syscall::open_tree,
1767 sub move_mount($$$$$) {
1768 my ($from_dirfd, $from_pathname, $to_dirfd, $to_pathname, $flags) = @_;
1769 return 0 == syscall(
1770 &PVE::Syscall::move_mount,
1780 my ($fsname, $flags) = @_;
1781 return PVE::Syscall::file_handle_result(syscall(&PVE::Syscall::fsopen, $fsname, $flags));
1785 my ($fd, $flags, $mount_attrs) = @_;
1786 return PVE::Syscall::file_handle_result(syscall(
1787 &PVE::Syscall::fsmount,
1795 my ($dirfd, $pathname, $flags) = @_;
1796 return PVE::Syscall::file_handle_result(syscall(
1797 &PVE::Syscall::fspick,
1804 sub fsconfig($$$$$) {
1805 my ($fd, $command, $key, $value, $aux) = @_;
1806 return 0 == syscall(&PVE::Syscall::fsconfig, $fd, $command, $key, $value, $aux);
1809 # "raw
" mount, old api, not for generic use (as it does not invoke any helpers).
1810 # use for lower level stuff such as bind/remount/... or simple tmpfs mounts
1812 my ($source, $target, $filesystemtype, $mountflags, $data) = @_;
1813 return 0 == syscall(
1814 &PVE::Syscall::mount,
1824 my ($left, $right, $cmp) = @_;
1826 return 0 if !defined($left) && !defined($right);
1827 return -1 if !defined($left);
1828 return 1 if !defined($right);
1829 return $cmp->($left, $right);
1835 # if 1, at least one checksum has to be specified otherwise an error will be thrown
1838 # -> verify_certificates
1839 # -> sha(1|224|256|384|512)sum
1841 sub download_file_from_url {
1842 my ($dest, $url, $opts) = @_;
1844 my $tmpdest = "$dest.tmp
.$$";
1849 for ('sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5') {
1850 if (defined($opts->{"${_
}sum
"})) {
1852 $expected = $opts->{"${_
}sum
"};
1857 die "checksum required but
not specified
\n" if ($opts->{hash_required} && !$algorithm);
1862 print "downloading
$url to
$dest\n";
1865 if (-f $dest && $algorithm) {
1866 print "calculating checksum of existing file
...\n";
1867 my $correct = check_file_hash($algorithm, $expected, $dest);
1870 print "file already
exists, no need to download
\n";
1873 print "mismatch
, downloading
\n";
1877 my @cmd = ('/usr/bin/wget', '--progress=dot:mega', '-O', $tmpdest, $url);
1880 if ($opts->{http_proxy}) {
1881 $ENV{http_proxy} = $opts->{http_proxy};
1883 if ($opts->{https_proxy}) {
1884 $ENV{https_proxy} = $opts->{https_proxy};
1887 my $verify = $opts->{verify_certificates} // 1;
1889 push @cmd, '--no-check-certificate';
1892 if (run_command([[@cmd]]) != 0) {
1893 die "download failed
: $!\n";
1897 print "calculating checksum
...\n";
1899 my $correct = check_file_hash($algorithm, $expected, $tmpdest);
1902 print "checksum verified
\n";
1904 die "checksum mismatch
\n";
1907 print "no checksum
for verification specified
\n";
1910 if (!rename($tmpdest, $dest)) {
1911 die "unable to save file
: $!\n";
1923 print "download finished
\n";
1926 my $rpcenv = PVE::RPCEnvironment::get();
1927 my $user = $rpcenv->get_user();
1929 (my $filename = $dest) =~ s!.*/([^/]*)$!$1!;
1931 return $rpcenv->fork_worker('download', $filename, $user, $worker);
1934 sub check_file_hash {
1935 my ($algorithm, $expected, $filename) = @_;
1937 my $algorithm_map = {
1938 'md5' => sub { Digest::MD5->new },
1939 'sha1' => sub { Digest::SHA->new(1) },
1940 'sha224' => sub { Digest::SHA->new(224) },
1941 'sha256' => sub { Digest::SHA->new(256) },
1942 'sha384' => sub { Digest::SHA->new(384) },
1943 'sha512' => sub { Digest::SHA->new(512) },
1946 my $digester = $algorithm_map->{$algorithm}->() or die "unknown algorithm
'$algorithm'\n";
1948 open(my $fh, '<', $filename) or die "unable to
open '$filename': $!\n";
1951 my $digest = $digester->addfile($fh)->hexdigest;
1953 return lc($digest) eq lc($expected);