# and register forked processes with &$register_worker(pid)
# Note: using $SIG{CHLD} = 'IGNORE' or $SIG{CHLD} = sub { wait (); } or ...
# has serious side effects, because perls built in system() and open()
-# functions can't get the correct exit status of a child. So we cant use
+# functions can't get the correct exit status of a child. So we can't use
# that (also see perlipc)
my $WORKER_PIDS;
die "user name not set\n";
}
+sub set_u2f_challenge {
+ my ($self, $challenge) = @_;
+
+ $self->{u2f_challenge} = $challenge;
+}
+
+sub get_u2f_challenge {
+ my ($self, $noerr) = @_;
+
+ return $self->{u2f_challenge} if defined($self->{u2f_challenge}) || $noerr;
+
+ die "no active u2f challenge\n";
+}
+
sub is_worker {
my ($class) = @_;
}
- @ta = sort { $b->{starttime} cmp $a->{starttime} } @ta;
+ @ta = sort { $b->{starttime} <=> $a->{starttime} } @ta;
my $save = defined($new_upid);
return 1;
}
+# acts almost as tee: writes an output both to STDOUT and a task log,
+# we differ as we're worker aware and look also at the childs control pipe,
+# so we know if the function could be executed successfully or not.
+my $tee_worker = sub {
+ my ($childfd, $ctrlfd, $taskfh, $cpid) = @_;
+
+ eval {
+ my $int_count = 0;
+ local $SIG{INT} = local $SIG{QUIT} = local $SIG{TERM} = sub {
+ # always send signal to all pgrp members
+ my $kpid = -$cpid;
+ if ($int_count < 3) {
+ kill(15, $kpid); # send TERM signal
+ } else {
+ kill(9, $kpid); # send KILL signal
+ }
+ $int_count++;
+ };
+ local $SIG{PIPE} = sub { die "broken pipe\n"; };
+
+ my $select = new IO::Select;
+ my $fh = IO::Handle->new_from_fd($childfd, 'r');
+ $select->add($fh);
+
+ my $readbuf = '';
+ my $count;
+ while ($select->count) {
+ my @handles = $select->can_read(1);
+ if (scalar(@handles)) {
+ my $count = sysread ($handles[0], $readbuf, 4096);
+ if (!defined ($count)) {
+ my $err = $!;
+ die "sync pipe read error: $err\n";
+ }
+ last if $count == 0; # eof
+
+ print $readbuf;
+ select->flush();
+
+ print $taskfh $readbuf;
+ $taskfh->flush();
+ } else {
+ # some commands daemonize without closing stdout
+ last if !PVE::ProcFSTools::check_process_running($cpid);
+ }
+ }
+
+ # get status (error or OK)
+ POSIX::read($ctrlfd, $readbuf, 4096);
+ if ($readbuf =~ m/^TASK OK\n?$/) {
+ # skip printing to stdout
+ print $taskfh $readbuf;
+ } elsif ($readbuf =~ m/^TASK ERROR: (.*)\n?$/) {
+ print STDERR "$1\n";
+ print $taskfh "\n$readbuf"; # ensure start on new line for webUI
+ } else {
+ die "got unexpected control message: $readbuf\n";
+ }
+ $taskfh->flush();
+ };
+ my $err = $@;
+
+ POSIX::close($childfd);
+ POSIX::close($ctrlfd);
+
+ if ($err) {
+ $err =~ s/\n/ /mg;
+ print STDERR "$err\n";
+ print $taskfh "TASK ERROR: $err\n";
+ }
+};
+
# start long running workers
# STDIN is redirected to /dev/null
# STDOUT,STDERR are redirected to the filename returned by upid_decode
$SIG{INT} = $SIG{QUIT} = $SIG{TERM} = sub { die "received interrupt\n"; };
$SIG{CHLD} = $SIG{PIPE} = 'DEFAULT';
-
- # set sess/process group - we want to be able to kill the
- # whole process group
- POSIX::setsid();
+ $SIG{TTOU} = 'IGNORE';
+
+ my $ppgid;
+ # set session/process group allows to kill the process group
+ if ($sync && -t STDIN) {
+ # some sync'ed workers operate on the tty but setsid sessions lose
+ # the tty, so just create a new pgroup and give it the tty
+ $ppgid = POSIX::getpgrp() or die "failed to get old pgid: $!\n";
+ POSIX::setpgid(0, 0) or die "failed to setpgid: $!\n";
+ POSIX::tcsetpgrp(fileno(STDIN), $$) or die "failed to tcsetpgrp: $!\n";
+ } else {
+ POSIX::setsid();
+ }
POSIX::close ($psync[0]);
POSIX::close ($ctrlfd[0]) if $sync;
&$atfork();
}
- # same algorythm as used inside SA
+ # same algorithm as used inside SA
# STDIN = /dev/null
my $fd = fileno (STDIN);
if !open(STDIN, "</dev/null");
$outfh = PVE::Tools::upid_open($upid);
- $resfh = $outfh;
+ $resfh = fileno($outfh);
}
POSIX::write($psync[1], $upid, length ($upid));
POSIX::close($psync[1]) if !$sync; # don't need output pipe if async
- my $readbuf = '';
- # sync with parent (wait until parent is ready)
- POSIX::read($csync[0], $readbuf, 4096);
- die "parent setup error\n" if $readbuf ne 'OK';
+ eval {
+ my $readbuf = '';
+ # sync with parent (wait until parent is ready)
+ POSIX::read($csync[0], $readbuf, 4096);
+ die "parent setup error\n" if $readbuf ne 'OK';
- if ($self->{type} eq 'ha') {
- print "task started by HA resource agent\n";
- }
- eval { &$function($upid); };
+ if ($self->{type} eq 'ha') {
+ print "task started by HA resource agent\n";
+ }
+ &$function($upid);
+ };
+ my ($msg, $exitcode);
my $err = $@;
if ($err) {
chomp $err;
$err =~ s/\n/ /mg;
syslog('err', $err);
- my $msg = "TASK ERROR: $err\n";
- POSIX::write($resfh, $msg, length($msg));
- POSIX::close($resfh) if $sync;
- POSIX::_exit(-1);
+ $msg = "TASK ERROR: $err\n";
+ $exitcode = -1;
} else {
- my $msg = "TASK OK\n";
- POSIX::write($resfh, $msg, length($msg));
- POSIX::close($resfh) if $sync;
- POSIX::_exit(0);
+ $msg = "TASK OK\n";
+ $exitcode = 0;
+ }
+ POSIX::write($resfh, $msg, length($msg));
+
+ if ($sync) {
+ POSIX::close($resfh);
+ if ( -t STDIN) {
+ POSIX::tcsetpgrp(fileno(STDIN), $ppgid) or
+ die "failed to tcsetpgrp to parent: $!\n";
+ }
}
- kill(-9, $$);
+ POSIX::_exit($exitcode);
+ kill(-9, $$); # not really needed, just to be sure
}
# parent
my $res = 0;
if ($sync) {
- my $count;
- my $int_count = 0;
- eval {
- local $SIG{INT} = local $SIG{QUIT} = local $SIG{TERM} = sub {
- # always send signal to all pgrp members
- my $kpid = -$cpid;
- if ($int_count < 3) {
- kill(15, $kpid); # send TERM signal
- } else {
- kill(9, $kpid); # send KILL signal
- }
- $int_count++;
- };
- local $SIG{PIPE} = sub { die "broken pipe\n"; };
-
- my $select = new IO::Select;
- my $fh = IO::Handle->new_from_fd($psync[0], 'r');
- $select->add($fh);
-
- while ($select->count) {
- my @handles = $select->can_read(1);
- if (scalar(@handles)) {
- my $count = sysread ($handles[0], $readbuf, 4096);
- if (!defined ($count)) {
- my $err = $!;
- die "sync pipe read error: $err\n";
- }
- last if $count == 0; # eof
-
- print $readbuf;
- select->flush();
-
- print $outfh $readbuf;
- $outfh->flush();
- } else {
- # some commands daemonize without closing stdout
- last if !PVE::ProcFSTools::check_process_running($cpid);
- }
- }
-
- # get status (error or OK)
- POSIX::read($ctrlfd[0], $readbuf, 4096);
- if ($readbuf =~ m/^TASK OK\n?$/) {
- print $outfh $readbuf;
- } elsif ($readbuf =~ m/^TASK ERROR: (.*)\n?$/) {
- print STDERR "$1\n";
- print $outfh "\n$readbuf";
- } else {
- die "got unexpected control message: $readbuf\n";
- }
- $outfh->flush();
- };
- my $err = $@;
-
- POSIX::close($psync[0]);
- POSIX::close($ctrlfd[0]);
- if ($err) {
- $err =~ s/\n/ /mg;
- print STDERR "$err\n";
- if ($outfh) {
- print $outfh "TASK ERROR: $err\n";
- }
- }
+ $tee_worker->($psync[0], $ctrlfd[0], $outfh, $cpid);
&$kill_process_group($cpid, $pstart); # make sure it gets killed
projects / pve-common.git / blobdiff