use URI::Escape;
use Encode;
use Digest::SHA;
+use JSON;
use Text::ParseWords;
use String::ShellQuote;
use Time::HiRes qw(usleep gettimeofday tv_interval alarm);
-use Net::DBus qw(dbus_uint32 dbus_uint64);
-use Net::DBus::Callback;
-use Net::DBus::Reactor;
use Scalar::Util 'weaken';
use PVE::Syscall;
or die "can't open file - $!\n";
if (!flock($fh, $mode|LOCK_NB)) {
- print STDERR "trying to acquire lock...";
+ print STDERR "trying to acquire lock...\n";
my $success;
while(1) {
$success = flock($fh, $mode);
my $afterfork;
my $noerr;
my $keeplocale;
+ my $quiet;
eval {
$noerr = $param{$p};
} elsif ($p eq 'keeplocale') {
$keeplocale = $param{$p};
+ } elsif ($p eq 'quiet') {
+ $quiet = $param{$p};
} else {
die "got unknown parameter '$p' for run_command\n";
}
waitpid ($pid, 0);
die $err;
}
- } else {
+ } elsif (!$quiet) {
print $buf;
*STDOUT->flush();
}
waitpid ($pid, 0);
die $err;
}
- } else {
+ } elsif (!$quiet) {
print STDERR $buf;
*STDERR->flush();
}
}
sub split_list {
- my $listtxt = shift || '';
+ my $listtxt = shift // '';
return split (/\0/, $listtxt) if $listtxt =~ m/\0/;
return $tmpl if !$tmpl;
my $res = '';
- while ($tmpl =~ m/([^{]+)?({([^}]+)})?/g) {
+ while ($tmpl =~ m/([^{]+)?(\{([^}]+)\})?/g) {
$res .= $1 if $1;
$res .= ($data->{$3} || '-') if $2;
}
'pl' => ['Polish', 'pl', 'qwerty/pl.kmap.gz', 'pl', undef],
'pt' => ['Portuguese', 'pt', 'qwerty/pt-latin1.kmap.gz', 'pt', 'nodeadkeys'],
'pt-br' => ['Brazil-Portuguese', 'pt-br', 'qwerty/br-latin1.kmap.gz', 'br', 'nodeadkeys'],
- #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # dont know?
+ #'ru' => ['Russian', 'ru', 'qwerty/ru.kmap.gz', 'ru', undef], # don't know?
'si' => ['Slovenian', 'sl', 'qwertz/slovene.kmap.gz', 'si', undef],
'se' => ['Swedish', 'sv', 'qwerty/se-latin1.kmap.gz', 'se', 'nodeadkeys'],
#'th' => [],
# Note: we use this to wait until vncterm/spiceterm is ready
sub wait_for_vnc_port {
- my ($port, $timeout) = @_;
+ my ($port, $family, $timeout) = @_;
$timeout = 5 if !$timeout;
my $sleeptime = 0;
my $starttime = [gettimeofday];
my $elapsed;
+ my $cmd = ['/bin/ss', '-Htln', "sport = :$port"];
+ push @$cmd, $family == AF_INET6 ? '-6' : '-4' if defined($family);
+
my $found;
while (($elapsed = tv_interval($starttime)) < $timeout) {
# -Htln = don't print header, tcp, listening sockets only, numeric ports
- run_command(['/bin/ss', '-Htln', "sport = :$port"], outfunc => sub {
+ run_command($cmd, outfunc => sub {
my $line = shift;
if ($line =~ m/^LISTEN\s+\d+\s+\d+\s+\S+:(\d+)\s/) {
$found = 1 if ($port == $1);
usleep($sleeptime);
}
- return undef;
+ die "Timeout while waiting for port '$port' to get ready!\n";
}
sub next_unused_port {
return next_unused_port(61000, 61099, $family, $address);
}
+sub must_stringify {
+ my ($value) = @_;
+ eval { $value = "$value" };
+ return "error turning value into a string: $@" if $@;
+ return $value;
+}
+
# sigkill after $timeout a $sub running in a fork if it can't write a pipe
# the $sub has to return a single scalar
sub run_fork_with_timeout {
my $res;
my $error;
my $pipe_out = IO::Pipe->new();
- my $pipe_err = IO::Pipe->new();
# disable pending alarms, save their remaining time
my $prev_alarm = alarm 0;
# avoid leaving a zombie if the parent gets interrupted
my $sig_received;
- local $SIG{INT} = sub { $sig_received++; };
my $child = fork();
if (!defined($child)) {
if (!$child) {
$pipe_out->writer();
- $pipe_err->writer();
eval {
$res = $sub->();
- print {$pipe_out} "$res";
+ print {$pipe_out} encode_json({ result => $res });
$pipe_out->flush();
};
if (my $err = $@) {
- print {$pipe_err} "$err";
- $pipe_err->flush();
+ print {$pipe_out} encode_json({ error => must_stringify($err) });
+ $pipe_out->flush();
POSIX::_exit(1);
}
POSIX::_exit(0);
}
+ local $SIG{INT} = sub { $sig_received++; };
+ local $SIG{TERM} = sub {
+ $error //= "interrupted by unexpected signal\n";
+ kill('TERM', $child);
+ };
+
$pipe_out->reader();
- $pipe_err->reader();
my $readvalues = sub {
local $/ = undef;
- $res = <$pipe_out>;
- $error = <$pipe_err>;
+ my $child_res = decode_json(readline_nointr($pipe_out));
+ $res = $child_res->{result};
+ $error = $child_res->{error};
};
eval {
- run_with_timeout($timeout, $readvalues);
+ if (defined($timeout)) {
+ run_with_timeout($timeout, $readvalues);
+ } else {
+ $readvalues->();
+ }
};
warn $@ if $@;
$pipe_out->close();
- $pipe_err->close();
kill('KILL', $child);
waitpid($child, 0);
return $res;
}
+sub run_fork {
+ my ($code) = @_;
+ return run_fork_with_timeout(undef, $code);
+}
+
# NOTE: NFS syscall can't be interrupted, so alarm does
# not work to provide timeouts.
# from 'man nfs': "Only SIGKILL can interrupt a pending NFS operation"
sub df {
my ($path, $timeout) = @_;
- my $res = {
- total => 0,
- used => 0,
- avail => 0,
+ my $df = sub { return Filesys::Df::df($path, 1) };
+
+ my $res = eval { run_fork_with_timeout($timeout, $df) } // {};
+ warn $@ if $@;
+
+ # untaint the values
+ my ($blocks, $used, $bavail) = map { defined($_) ? (/^(\d+)$/) : 0 }
+ $res->@{qw(blocks used bavail)};
+
+ return {
+ total => $blocks,
+ used => $used,
+ avail => $bavail,
};
+}
- my $pipe = IO::Pipe->new();
- my $child = fork();
- if (!defined($child)) {
- warn "fork failed: $!\n";
- return $res;
- }
+sub du {
+ my ($path, $timeout) = @_;
- if (!$child) {
- $pipe->writer();
- eval {
- my $df = Filesys::Df::df($path, 1);
- print {$pipe} "$df->{blocks}\n$df->{used}\n$df->{bavail}\n";
- $pipe->close();
- };
- if (my $err = $@) {
- warn $err;
- POSIX::_exit(1);
- }
- POSIX::_exit(0);
- }
+ my $size;
- $pipe->reader();
+ $timeout //= 10;
- my $readvalues = sub {
- $res->{total} = int((<$pipe> =~ /^(\d*)$/)[0]);
- $res->{used} = int((<$pipe> =~ /^(\d*)$/)[0]);
- $res->{avail} = int((<$pipe> =~ /^(\d*)$/)[0]);
- };
- eval {
- run_with_timeout($timeout, $readvalues);
+ my $parser = sub {
+ my $line = shift;
+
+ if ($line =~ m/^(\d+)\s+total$/) {
+ $size = $1;
+ }
};
- warn $@ if $@;
- $pipe->close();
- kill('KILL', $child);
- waitpid($child, 0);
- return $res;
+
+ run_command(['du', '-scb', $path], outfunc => $parser, timeout => $timeout);
+
+ return $size;
}
# UPID helper
return; # nothing
}
+sub setresuid($$$) {
+ my ($ruid, $euid, $suid) = @_;
+ return 0 == syscall(PVE::Syscall::setresuid, $ruid, $euid, $suid);
+}
+
sub unshare($) {
my ($flags) = @_;
return 0 == syscall(PVE::Syscall::unshare, $flags);
return 0 == syscall(PVE::Syscall::syncfs, $fileno);
}
+sub fsync($) {
+ my ($fileno) = @_;
+ return 0 == syscall(PVE::Syscall::fsync, $fileno);
+}
+
sub sync_mountpoint {
my ($path) = @_;
sysopen my $fd, $path, O_PATH or die "failed to open $path: $!\n";
return syscall(PVE::Syscall::mkdirat, $dirfd, $name, $mode) == 0;
}
-# NOTE: This calls the dbus main loop and must not be used when another dbus
-# main loop is being used as we need to wait for the JobRemoved signal.
-# Polling the job status instead doesn't work because this doesn't give us the
-# distinction between success and failure.
-#
-# Note that the description is mandatory for security reasons.
-sub enter_systemd_scope {
- my ($unit, $description, %extra) = @_;
- die "missing description\n" if !defined($description);
-
- my $timeout = delete $extra{timeout};
-
- $unit .= '.scope';
- my $properties = [ [PIDs => [dbus_uint32($$)]] ];
-
- foreach my $key (keys %extra) {
- if ($key eq 'Slice' || $key eq 'KillMode') {
- push @$properties, [$key, $extra{$key}];
- } elsif ($key eq 'CPUShares') {
- push @$properties, [$key, dbus_uint64($extra{$key})];
- } elsif ($key eq 'CPUQuota') {
- push @$properties, ['CPUQuotaPerSecUSec',
- dbus_uint64($extra{$key} * 10000)];
- } else {
- die "Don't know how to encode $key for systemd scope\n";
- }
- }
-
- my $job;
- my $done = 0;
-
- my $bus = Net::DBus->system();
- my $reactor = Net::DBus::Reactor->main();
-
- my $service = $bus->get_service('org.freedesktop.systemd1');
- my $if = $service->get_object('/org/freedesktop/systemd1', 'org.freedesktop.systemd1.Manager');
- # Connect to the JobRemoved signal since we want to wait for it to finish
- my $sigid;
- my $timer;
- my $cleanup = sub {
- my ($no_shutdown) = @_;
- $if->disconnect_from_signal('JobRemoved', $sigid) if defined($if);
- $if = undef;
- $sigid = undef;
- $reactor->remove_timeout($timer) if defined($timer);
- $timer = undef;
- return if $no_shutdown;
- $reactor->shutdown();
- };
-
- $sigid = $if->connect_to_signal('JobRemoved', sub {
- my ($id, $removed_job, $signaled_unit, $result) = @_;
- return if $signaled_unit ne $unit || $removed_job ne $job;
- $cleanup->(0);
- die "systemd job failed\n" if $result ne 'done';
- $done = 1;
- });
-
- my $on_timeout = sub {
- $cleanup->(0);
- die "systemd job timed out\n";
- };
-
- $timer = $reactor->add_timeout($timeout * 1000, Net::DBus::Callback->new(method => $on_timeout))
- if defined($timeout);
- $job = $if->StartTransientUnit($unit, 'fail', $properties, []);
- $reactor->run();
- $cleanup->(1);
- die "systemd job never completed\n" if !$done;
-}
-
my $salt_starter = time();
sub encrypt_pw {
}
# intended usage: convert_size($val, "kb" => "gb")
-# on reduction (converting to a bigger unit) we round up by default if
-# information got lost. E.g. `convert_size(1023, "b" => "kb")` returns 1
+# we round up to the next integer by default
+# E.g. `convert_size(1023, "b" => "kb")` returns 1
# use $no_round_up to switch this off, above example would then return 0
+# this is also true for converting down e.g. 0.0005 gb to mb returns 1
+# (0 if $no_round_up is true)
+# allowed formats for value:
+# 1234
+# 1234.
+# 1234.1234
+# .1234
sub convert_size {
my ($value, $from, $to, $no_round_up) = @_;
pb => 5,
};
- $from = lc($from); $to = lc($to);
+ die "no value given"
+ if !defined($value) || $value eq "";
+
+ $from = lc($from // ''); $to = lc($to // '');
die "unknown 'from' and/or 'to' units ($from => $to)"
- if !(defined($units->{$from}) && defined($units->{$to}));
+ if !defined($units->{$from}) || !defined($units->{$to});
+
+ die "value '$value' is not a valid, positive number"
+ if $value !~ m/^(?:[0-9]+\.?[0-9]*|[0-9]*\.[0-9]+)$/;
+
+ my $shift_amount = ($units->{$from} - $units->{$to}) * 10;
+
+ $value *= 2**$shift_amount;
+ $value++ if !$no_round_up && ($value - int($value)) > 0.0;
- my $shift_amount = $units->{$from} - $units->{$to};
+ return int($value);
+}
+
+# uninterruptible readline
+# retries on EINTR
+sub readline_nointr {
+ my ($fh) = @_;
+ my $line;
+ while (1) {
+ $line = <$fh>;
+ last if defined($line) || ($! != EINTR);
+ }
+ return $line;
+}
+
+sub get_host_arch {
+
+ my @uname = POSIX::uname();
+ my $machine = $uname[4];
+
+ if ($machine eq 'x86_64') {
+ return 'amd64';
+ } elsif ($machine eq 'aarch64') {
+ return 'arm64';
+ } else {
+ die "unsupported host architecture '$machine'\n";
+ }
+}
- if ($shift_amount > 0) {
- $value <<= ($shift_amount * 10);
- } elsif ($shift_amount < 0) {
- my $remainder = ($value & (1 << abs($shift_amount)*10) - 1);
- $value >>= abs($shift_amount) * 10;
- $value++ if $remainder && !$no_round_up;
+# Devices are: [ (12 bits minor) (12 bits major) (8 bits minor) ]
+sub dev_t_major($) {
+ my ($dev_t) = @_;
+ return (int($dev_t) & 0xfff00) >> 8;
+}
+
+sub dev_t_minor($) {
+ my ($dev_t) = @_;
+ $dev_t = int($dev_t);
+ return (($dev_t >> 12) & 0xfff00) | ($dev_t & 0xff);
+}
+
+# Given an array of array refs [ \[a b c], \[a b b], \[e b a] ]
+# Returns the intersection of elements as a single array [a b]
+sub array_intersect {
+ my ($arrays) = @_;
+
+ return [] if scalar(@$arrays) == 0;
+ return $arrays->[0] if scalar(@$arrays) == 1;
+
+ my $array_unique = sub {
+ my %seen = ();
+ return grep { ! $seen{ $_ }++ } @_;
+ };
+
+ # base idea is to get all unique members from the first array, then
+ # check the common elements with the next (uniquely made) one, only keep
+ # those. Repeat for every array and at the end we only have those left
+ # which exist in all arrays
+ my $return_arr = [ $array_unique->(@{$arrays->[0]}) ];
+ for my $i (1 .. $#$arrays) {
+ my %count = ();
+ # $return_arr is already unique, explicit at before the loop, implicit below.
+ foreach my $element (@$return_arr, $array_unique->(@{$arrays->[$i]})) {
+ $count{$element}++;
+ }
+ $return_arr = [];
+ foreach my $element (keys %count) {
+ push @$return_arr, $element if $count{$element} > 1;
+ }
+ last if scalar(@$return_arr) == 0; # empty intersection, early exit
}
- return $value;
+ return $return_arr;
}
+
1;
projects / pve-common.git / blobdiff