iptables -A INPUT -j GUARDIAN
iptables -A FORWARD -j GUARDIAN
+ # IPS (suricata) chains
+ iptables -N IPS
+ iptables -A INPUT -j IPS
+ iptables -A FORWARD -j IPS
+ iptables -A OUTPUT -j IPS
+
# Block non-established IPsec networks
iptables -N IPSECBLOCK
iptables -A FORWARD -m policy --dir out --pol none -j IPSECBLOCK
iptables -A ${i} -j LOOPBACK
done
+ # Captive portal
+ iptables -N CAPTIVE_PORTAL
+ iptables -N CAPTIVE_PORTAL_CLIENTS
+ for i in INPUT FORWARD; do
+ iptables -A ${i} -j CAPTIVE_PORTAL
+ done
+
# Accept everything connected
for i in INPUT FORWARD OUTPUT; do
iptables -A ${i} -j CONNTRACK
# Always allow accessing the web GUI from GREEN.
iptables -N GUIINPUT
iptables -A INPUT -j GUIINPUT
- iptables -A GUIINPUT -i "${GREEN_DEV}" -p tcp --dport 444 -j ACCEPT
+ if [ -n "${GREEN_DEV}" ]; then
+ iptables -A GUIINPUT -i "${GREEN_DEV}" -p tcp --dport 444 -j ACCEPT
+ fi
# WIRELESS chains
iptables -N WIRELESSINPUT
iptables -N OVPNINPUT
iptables -A INPUT -j OVPNINPUT
- # TOR
+ # Tor
iptables -N TOR_INPUT
iptables -A INPUT -j TOR_INPUT
iptables -t nat -N NAT_SOURCE
iptables -t nat -A POSTROUTING -j NAT_SOURCE
+ # Captive Portal
+ iptables -t nat -N CAPTIVE_PORTAL
+ iptables -t nat -A PREROUTING -j CAPTIVE_PORTAL
+
# Custom prerouting chains (for transparent proxy)
iptables -t nat -N SQUID
iptables -t nat -A PREROUTING -j SQUID
iptables -t nat -N NAT_DESTINATION_FIX
iptables -t nat -A POSTROUTING -j NAT_DESTINATION_FIX
- iptables -t nat -A NAT_DESTINATION_FIX \
- -m mark --mark 1 -j SNAT --to-source "${GREEN_ADDRESS}"
+ if [ -n "${GREEN_ADDRESS}" ]; then
+ iptables -t nat -A NAT_DESTINATION_FIX \
+ -m mark --mark 1 -j SNAT --to-source "${GREEN_ADDRESS}"
+ fi
if [ -n "${BLUE_ADDRESS}" ]; then
iptables -t nat -A NAT_DESTINATION_FIX \
iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
fi
- # Orange pinholes
- if [ "$ORANGE_DEV" != "" ]; then
- # This rule enables a host on ORANGE network to connect to the outside
- # (only if we have a red connection)
- if [ "$IFACE" != "" ]; then
- iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
- fi
- fi
-
if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
# DHCP
if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; then
iptables_red_down() {
# Prohibit packets to reach the masquerading rule
- # while the wan interface is down - this is required to
+ # while the WAN interface is down - this is required to
# circumvent udp related NAT issues
# http://forum.ipfire.org/index.php?topic=11127.0
if [ -n "${IFACE}" ]; then