Forward Firewall: Bugfix: When creating a rule which results in an error, the counter...

[people/teissler/ipfire-2.x.git] / config / forwardfw / rules.pl

diff --git a/config/forwardfw/rules.pl b/config/forwardfw/rules.pl
index 07f3abd1eaa6d02ebc915f97c3f61b198de1cfaa..3f491f79465906cf08c30426e43f6f65e7206f86 100755 (executable)
--- a/config/forwardfw/rules.pl
+++ b/config/forwardfw/rules.pl
@@ -2,7 +2,7 @@
 ###############################################################################
 #                                                                             #
 # IPFire.org - A linux based firewall                                         #
-# Copyright (C) 2012                                                                                                             #
+# Copyright (C) 2013 Alexander Marx <amarx@ipfire.org>                        #
 #                                                                             #
 # This program is free software: you can redistribute it and/or modify        #
 # it under the terms of the GNU General Public License as published by        #
@@ -18,11 +18,6 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
 #                                                                             #
 ###############################################################################
-#                                                                                                                                                        #
-# Hi folks! I hope this code is useful for all. I needed something to handle  #
-# my VPN Connections in a comfortable way.                                                               #
-# This script builds firewallrules from the webinterface                      #
-###############################################################################
 
 use strict;
 use Time::Local;
@@ -89,7 +84,7 @@ close(CONN1);
 ################################
 #    DEBUG/TEST                #
 ################################
-my $MODE=1;     # 0 - normal operation
+my $MODE=0;     # 0 - normal operation
                                # 1 - print configline and rules to console     
                                # 
 ################################               
@@ -151,8 +146,10 @@ sub buildrules
        my $nat;
        my $fwaccessdport;
        my $natchain;
+       my $icmptype;
        foreach my $key (sort {$a <=> $b} keys %$hash){
                next if (($$hash{$key}[6] eq 'RED' || $$hash{$key}[6] eq 'RED1') && $conexists eq 'off' );
+               $command="iptables -A";
                if ($$hash{$key}[28] eq 'ON'){
                        $command='iptables -t nat -A';
                        $natip=&get_nat_ip($$hash{$key}[29],$$hash{$key}[31]);
@@ -265,10 +262,15 @@ sub buildrules
                                                                        if(substr($DPORT, 2, 4) eq 'icmp'){
                                                                                my @icmprule= split(",",substr($DPORT, 12,));
                                                                                foreach (@icmprule){
+                                                                                       $icmptype="--icmp-type ";
+                                                                                       if ($_ eq "BLANK") {
+                                                                                                       $icmptype="";
+                                                                                                       $_="";
+                                                                                       }
                                                                                        if ($$hash{$key}[17] eq 'ON'){
-                                                                                               print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j LOG\n";
+                                                                                               print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG\n";
                                                                                        }
-                                                                                       print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]\n";
+                                                                                               print "$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]\n";
                                                                                }
                                                                        }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
                                                                                $natchain='NAT_DESTINATION';
@@ -294,7 +296,7 @@ sub buildrules
                                                                                $natchain='NAT_SOURCE';
                                                                                print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
                                                                        }
-                                                                       if ($$hash{$key}[17] eq 'ON'){
+                                                                       if ($$hash{$key}[17] eq 'ON' ){
                                                                                        print "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
                                                                        }
                                                                        if ($PROT ne '-p ICMP'){
@@ -320,10 +322,15 @@ sub buildrules
                                                                        if(substr($DPORT, 2, 4) eq 'icmp'){
                                                                                my @icmprule= split(",",substr($DPORT, 12,));
                                                                                foreach (@icmprule){
+                                                                                       $icmptype="--icmp-type ";
+                                                                                       if ($_ eq "BLANK") {
+                                                                                                       $icmptype="";
+                                                                                                       $_="";
+                                                                                       }
                                                                                        if ($$hash{$key}[17] eq 'ON'){
-                                                                                               system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] -- icmp-type $_ $TIME -j LOG");
+                                                                                               system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j LOG");
                                                                                        }
-                                                                                       system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] --icmp-type $_ $TIME -j $$hash{$key}[0]");
+                                                                                               system ("$command $$hash{$key}[1] $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $icmptype $_ $TIME -j $$hash{$key}[0]");
                                                                                }
                                                                        #PROCESS DNAT RULE (Portforward)
                                                                        }elsif($$hash{$key}[28] eq 'ON' && $$hash{$key}[31] eq 'dnat'){
@@ -351,7 +358,7 @@ sub buildrules
                                                                                $natchain='NAT_SOURCE';
                                                                                system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j $nat --to $natip\n";
                                                                        }
-                                                                       if ($$hash{$key}[17] eq 'ON'){
+                                                                       if ($$hash{$key}[17] eq 'ON' && substr($DPORT, 2, 4) ne 'icmp'){
                                                                                system "$command $natchain $PROT $STAG $sourcehash{$a}[0] $SPORT -d $targethash{$b}[0] $DPORT $TIME -j LOG\n";
                                                                        }
                                                                        #PROCESS EVERY OTHER RULE (If NOT ICMP, else the rule would be applied double)