firewall: Allow to disable masquerading.

[people/pmueller/ipfire-2.x.git] / src / initscripts / init.d / firewall

diff --git a/src/initscripts/init.d/firewall b/src/initscripts/init.d/firewall
index 7a18502bfa728743bc951fef3ccbce84389a57f4..a49dcdee6d23adb147b210216972dc07a24047f6 100644 (file)
--- a/src/initscripts/init.d/firewall
+++ b/src/initscripts/init.d/firewall
@@ -336,10 +336,31 @@ iptables_red() {
                # Outgoing masquerading (don't masqerade IPSEC (mark 50))
                iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
 
-               if [ "$IFACE" != "$GREEN_DEV" ]; then
-                       iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
+               if [ "$IFACE" = "$GREEN_DEV" ]; then
+                       MASQUERADE_GREEN="off"
                fi
 
+               local NO_MASQ_DEVICES
+
+               if [ "${MASQUERADE_GREEN}" = "off" ]; then
+                       NO_MASQ_DEVICES="${NO_MASQ_DEVICES} ${GREEN_DEV}"
+               fi
+
+               if [ "${MASQUERADE_BLUE}" = "off" ]; then
+                       NO_MASQ_DEVICES="${NO_MASQ_DEVICES} ${BLUE_DEV}"
+               fi
+
+               if [ "${MASQUERADE_ORANGE}" = "off" ]; then
+                       NO_MASQ_DEVICES="${NO_MASQ_DEVICES} ${ORANGE_DEV}"
+               fi
+
+               local device
+               for device in ${NO_MASQ_DEVICES}; do
+                       iptables -t nat -A REDNAT -i "${device}" -o "${IFACE}" -j RETURN
+               done
+
+               # Masquerade everything else
+               iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
        fi
 
        # Reload all rules.