69 lines
1.7 KiB
Perl
69 lines
1.7 KiB
Perl
#!perl -w
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=head1 NAME
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stunnel - stunnel proxy protocol client ip helper.
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=head1 DESCRIPTION
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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
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protocol spec : http://haproxy.1wt.eu/download/1.5/doc/proxy-protocol.txt
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config/plugins file example
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stunnel proxy on
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...
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=head1 CONFIGURATION
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=head2 proxy [ ON | OFF ]
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proxy protocol handler on/off
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=cut
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use strict;
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use warnings;
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use Qpsmtpd::Constants;
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sub register {
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my ($self, $qp, %args) = @_;
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return if uc $args{proxy} ne 'ON';
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$self->log(LOGINFO, "proxy protocol enabled");
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$self->register_hook('unrecognized_command', 'stunnel');
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}
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sub stunnel {
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my ($self, $transaction, $cmd, @args) = @_;
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return OK if uc $cmd ne 'PROXY';
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return DENY_DISCONNECT if $self->connection->remote_ip() ne '127.0.0.1';
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return DENY_DISCONNECT if $self->connection->notes('proxy');
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# TCP4 192.168.41.227 10.27.11.106 50060 465
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if ($args[0] !~ m/^(.*?) (.*?) (.*?) (.*?) (.*?)$/) {
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return DENY_DISCONNECT;
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}
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$self->connection->remote_ip($2);
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$self->connection->remote_port($4);
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$self->connection->remote_info("[$2]");
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$self->connection->notes('proxy', 'YES');
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$self->connection->notes('protocol', $1);
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$self->connection->notes('remote_ip', $2);
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$self->connection->notes('local_ip', $3);
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$self->connection->notes('remote_port', $4);
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$self->connection->notes('local_port', $5);
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$self->log(LOGINFO, "stunnel : $2:$4");
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# DNS reverse
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my @ptrs = $self->resolve_ptr($self->connection->remote_ip);
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$self->connection->remote_host($ptrs[0]);
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return DONE;
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}
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