[PATCH] firewall: Avoid creating a rule that permits all traffic on invalid source

The firewall engine generated rules that did not have any traffic selectors due to an improperly initialized variable in the source.

Signed-off-by: Michael Tremer michael.tremer@ipfire.org --- config/firewall/rules.pl | 3 +++ 1 file changed, 3 insertions(+)

diff --git a/config/firewall/rules.pl b/config/firewall/rules.pl index 30ad20df1..1b628df16 100644 --- a/config/firewall/rules.pl +++ b/config/firewall/rules.pl @@ -401,6 +401,9 @@ sub buildrules { $source = ""; }

+ # Make sure that $source is properly defined + next unless (defined $source); + my $source_intf = @$src[1];

foreach my $dst (@destinations) {