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helo: added comments

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This commit is contained in:
Matt Simerson 2013-03-15 22:16:06 -07:00
parent a7742b5b40
commit a90c881ae5
1 changed files with 4 additions and 0 deletions
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plugins/helo
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@ -368,6 +368,7 @@ sub is_forged_literal {
my ( $self, $host ) = @_; my ( $self, $host ) = @_;
return if $host !~ m/^\[(\d{1,3}\.){3}\d{1,3}\]$/; return if $host !~ m/^\[(\d{1,3}\.){3}\d{1,3}\]$/;
# should we add exceptions for reserved internal IP space? (192.168,10., etc?)
$host = substr $host, 1, -1; $host = substr $host, 1, -1;
return if $host eq $self->qp->connection->remote_ip; return if $host eq $self->qp->connection->remote_ip;
return ("Forged IPs not accepted here", "forged IP literal"); return ("Forged IPs not accepted here", "forged IP literal");
@ -444,6 +445,9 @@ sub no_reverse_dns {
sub no_matching_dns { sub no_matching_dns {
my ( $self, $host ) = @_; my ( $self, $host ) = @_;
# this is called iprev, or "Forward-confirmed reverse DNS" and is discussed in RFC 5451
# consider adding header: Authentication-Results
if ( $self->connection->notes('helo_forward_match') && if ( $self->connection->notes('helo_forward_match') &&
$self->connection->notes('helo_reverse_match') ) { $self->connection->notes('helo_reverse_match') ) {
$self->log( LOGDEBUG, "foward and reverse match" ); $self->log( LOGDEBUG, "foward and reverse match" );