-sub checkportfw {
- my $DPORT = shift;
- my $DPROT = shift;
- my %natconfig =();
- my $confignat = "${General::swroot}/firewall/config";
- $DPROT= uc ($DPROT);
- &General::readhasharray($confignat, \%natconfig);
- foreach my $key (sort keys %natconfig){
- my @portarray = split (/\|/,$natconfig{$key}[30]);
- foreach my $value (@portarray){
- if ($value =~ /:/i){
- my ($a,$b) = split (":",$value);
- if ($DPROT eq $natconfig{$key}[12] && $DPORT gt $a && $DPORT lt $b){
- $errormessage= "$Lang::tr{'source port in use'} $DPORT";
- }
- }else{
- if ($DPROT eq $natconfig{$key}[12] && $DPORT eq $value){
- $errormessage= "$Lang::tr{'source port in use'} $DPORT";
- }
- }
- }
- }
- return;
-}
-
-sub checkportoverlap
-{
- my $portrange1 = $_[0]; # New port range
- my $portrange2 = $_[1]; # existing port range
- my @tempr1 = split(/\:/,$portrange1);
- my @tempr2 = split(/\:/,$portrange2);
-
- unless (&checkportinc($tempr1[0], $portrange2)){ return 0;}
- unless (&checkportinc($tempr1[1], $portrange2)){ return 0;}
-
- unless (&checkportinc($tempr2[0], $portrange1)){ return 0;}
- unless (&checkportinc($tempr2[1], $portrange1)){ return 0;}
-
- return 1; # Everything checks out!
-}
-
-# Darren Critchley - we want to make sure that a port entry is not within an already existing range
-sub checkportinc
-{
- my $port1 = $_[0]; # Port
- my $portrange2 = $_[1]; # Port range
- my @tempr1 = split(/\:/,$portrange2);
-
- if ($port1 < $tempr1[0] || $port1 > $tempr1[1]) {
- return 1;
- } else {
- return 0;
- }
-}
-
-# Darren Critchley - certain ports are reserved for IPFire
-# TCP 67,68,81,222,444
-# UDP 67,68
-# Params passed in -> port, rangeyn, protocol
-sub disallowreserved
-{
- # port 67 and 68 same for tcp and udp, don't bother putting in an array
- my $msg = "";
- my @tcp_reserved = (81,222,444);
- my $prt = $_[0]; # the port or range
- my $ryn = $_[1]; # tells us whether or not it is a port range
- my $prot = $_[2]; # protocol
- my $srcdst = $_[3]; # source or destination
- if ($ryn) { # disect port range
- if ($srcdst eq "src") {
- $msg = "$Lang::tr{'rsvd src port overlap'}";
- } else {
- $msg = "$Lang::tr{'rsvd dst port overlap'}";
- }
- my @tmprng = split(/\:/,$prt);
- unless (67 < $tmprng[0] || 67 > $tmprng[1]) { $errormessage="$msg 67"; return; }
- unless (68 < $tmprng[0] || 68 > $tmprng[1]) { $errormessage="$msg 68"; return; }
- if ($prot eq "tcp") {
- foreach my $prange (@tcp_reserved) {
- unless ($prange < $tmprng[0] || $prange > $tmprng[1]) { $errormessage="$msg $prange"; return; }
- }
- }
- } else {
- if ($srcdst eq "src") {
- $msg = "$Lang::tr{'reserved src port'}";
- } else {
- $msg = "$Lang::tr{'reserved dst port'}";
- }
- if ($prt == 67) { $errormessage="$msg 67"; return; }
- if ($prt == 68) { $errormessage="$msg 68"; return; }
- if ($prot eq "tcp") {
- foreach my $prange (@tcp_reserved) {
- if ($prange == $prt) { $errormessage="$msg $prange"; return; }
- }
- }
- }
- return;
-}
-