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stunnel proxy protocol remote ip,port setting feature added for smtps.

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reference : http://www.stunnel.org/static/stunnel.html
protocol spec : http://haproxy.1wt.eu/download/1.5/doc/proxy-protocol.txt
This commit is contained in:
luzluna park 2014-05-30 15:21:08 +09:00
parent a2816c50a7
commit eaebf766bc
2 changed files with 48 additions and 1 deletions
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1
lib/Qpsmtpd/PollServer.pm
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@ -85,6 +85,7 @@ sub reset_for_next_message {
$self->SUPER::reset_for_next_message(@_);
$self->{_commands} = {
proxy => 1,
ehlo => 1,
helo => 1,
rset => 1,

48
lib/Qpsmtpd/SMTP.pm
View File

@ -34,7 +34,7 @@ sub new {
my $self = bless({args => \%args}, $class);
my (@commands) = qw(ehlo helo rset mail rcpt data help vrfy noop quit);
my (@commands) = qw(proxy ehlo helo rset mail rcpt data help vrfy noop quit);
my (%commands);
@commands{@commands} = ('') x @commands;
@ -150,6 +150,52 @@ sub connection {
|| ($self->{_connection} = Qpsmtpd::Connection->new());
}
# proxy command process for stunnel (protocol = proxy) config to support smtps
sub proxy {
my ($self, $line) = @_;
# if not stunnel bypass
return if ( $self->connection->remote_ip() ne '127.0.0.1' );
# input format : PROXY TCP4 192.168.41.227 10.27.11.106 50060 465
if ( $line =~ m/^(.*?) (.*?) (.*?) (.*?) (.*?)$/ ) {
my $protocol = $1;
my $remote_ip = $2;
my $local_ip = $3;
my $remote_port = $4;
my $local_port = $5;
$self->connection->remote_ip( $remote_ip );
$self->connection->remote_port( $remote_port );
$self->connection->remote_info( "[$remote_ip]");
if ( $self->isa('Qpsmtpd::PollServer') ) {
use ParaDNS;
ParaDNS->new(
finished => sub { $self->continue_read() },
callback => sub { $self->connection->remote_host($_[0]) },
host => $remote_ip,
);
}
else {
my $res = Net::DNS::Resolver->new( dnsrch => 0 );
$res->tcp_timeout(3);
$res->udp_timeout(3);
my $query = $res->query( $remote_ip, 'PTR' );
if ($query) {
foreach my $rr ($query->answer) {
next if $rr->type ne 'PTR';
$self->connection->remote_host( $rr->ptrdname );
}
}
}
$self->connection->notes('proxy', 'YES');
$self->connection->notes('protocol', $protocol);
$self->connection->notes('remote_ip', $remote_ip);
$self->connection->notes('remote_port', $remote_port);
$self->connection->notes('local_ip', $local_ip);
$self->connection->notes('local_port', $local_port);
}
}
sub helo {
my ($self, $line) = @_;
my ($rc, @msg) = $self->run_hooks('helo_parse');