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

#!/bin/sh

eval $(/usr/local/bin/readhash /var/ipfire/ppp/settings)
eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
eval $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings)
IFACE=`/bin/cat /var/ipfire/red/iface 2> /dev/null | /usr/bin/tr -d '\012'`

if [ -f /var/ipfire/red/device ]; then
	DEVICE=`/bin/cat /var/ipfire/red/device 2> /dev/null | /usr/bin/tr -d '\012'`
fi

iptables_init() {
	# Flush all rules and delete all custom chains
	/sbin/iptables -F
	/sbin/iptables -t nat -F
	/sbin/iptables -t mangle -F
	/sbin/iptables -X
	/sbin/iptables -t nat -X
	/sbin/iptables -t mangle -X

	# Set up policies
	/sbin/iptables -P INPUT DROP
	/sbin/iptables -P FORWARD DROP
	/sbin/iptables -P OUTPUT ACCEPT

	# Empty LOG_DROP and LOG_REJECT chains
	/sbin/iptables -N LOG_DROP
	/sbin/iptables -A LOG_DROP   -m limit --limit 10/minute -j LOG
	/sbin/iptables -A LOG_DROP   -j DROP
	/sbin/iptables -N LOG_REJECT
	/sbin/iptables -A LOG_REJECT -m limit --limit 10/minute -j LOG
	/sbin/iptables -A LOG_REJECT -j REJECT

	# This chain will log, then DROPs packets with certain bad combinations
	# of flags might indicate a port-scan attempt (xmas, null, etc)
	/sbin/iptables -N PSCAN
	if [ "$DROPPORTSCAN" == "on" ]; then
		/sbin/iptables -A PSCAN -p tcp  -m limit --limit 10/minute -j LOG --log-prefix "DROP_TCP Scan " -m comment --comment "DROP_TCP PScan"
		/sbin/iptables -A PSCAN -p udp  -m limit --limit 10/minute -j LOG --log-prefix "DROP_UDP Scan " -m comment --comment "DROP_UDP PScan"
		/sbin/iptables -A PSCAN -p icmp -m limit --limit 10/minute -j LOG --log-prefix "DROP_ICMP Scan " -m comment --comment "DROP_ICMP PScan"
		/sbin/iptables -A PSCAN -f      -m limit --limit 10/minute -j LOG --log-prefix "DROP_FRAG Scan " -m comment --comment "DROP_FRAG PScan"
	fi
	/sbin/iptables -A PSCAN -j DROP -m comment --comment "DROP_PScan"

	# New tcp packets without SYN set - could well be an obscure type of port scan
	# that's not covered above, may just be a broken windows machine
	/sbin/iptables -N NEWNOTSYN
	if [ "$DROPNEWNOTSYN" == "on" ]; then
		/sbin/iptables -A NEWNOTSYN  -m limit --limit 10/minute -j LOG  --log-prefix "DROP_NEWNOTSYN "
	fi
	/sbin/iptables -A NEWNOTSYN  -j DROP -m comment --comment "DROP_NEWNOTSYN"

	# Chain to contain all the rules relating to bad TCP flags
	/sbin/iptables -N BADTCP

	#Don't check loopback
	/sbin/iptables -A BADTCP -i lo -j RETURN

	# Disallow packets frequently used by port-scanners
	# nmap xmas
	/sbin/iptables -A BADTCP -p tcp --tcp-flags ALL FIN,URG,PSH  -j PSCAN
	# Null
	/sbin/iptables -A BADTCP -p tcp --tcp-flags ALL NONE -j PSCAN
	# FIN
	/sbin/iptables -A BADTCP -p tcp --tcp-flags ALL FIN -j PSCAN
	# SYN/RST (also catches xmas variants that set SYN+RST+...)
	/sbin/iptables -A BADTCP -p tcp --tcp-flags SYN,RST SYN,RST -j PSCAN
	# SYN/FIN (QueSO or nmap OS probe)
	/sbin/iptables -A BADTCP -p tcp --tcp-flags SYN,FIN SYN,FIN -j PSCAN
	# NEW TCP without SYN
	/sbin/iptables -A BADTCP -p tcp ! --syn -m conntrack --ctstate NEW -j NEWNOTSYN

	/sbin/iptables -A INPUT   -p tcp -j BADTCP
	/sbin/iptables -A FORWARD -p tcp -j BADTCP

	# Connection tracking chain
	/sbin/iptables -N CONNTRACK
	/sbin/iptables -A CONNTRACK -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT

	# Fix for braindead ISP's
	/sbin/iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu

	# CUSTOM chains, can be used by the users themselves
	/sbin/iptables -N CUSTOMINPUT
	/sbin/iptables -A INPUT -j CUSTOMINPUT
	/sbin/iptables -N GUARDIAN
	/sbin/iptables -A INPUT -j GUARDIAN
	/sbin/iptables -A FORWARD -j GUARDIAN
	/sbin/iptables -N CUSTOMFORWARD
	/sbin/iptables -A FORWARD -j CUSTOMFORWARD
	/sbin/iptables -N CUSTOMOUTPUT
	/sbin/iptables -A OUTPUT -j CUSTOMOUTPUT
	/sbin/iptables -N OUTGOINGFW
	/sbin/iptables -A OUTPUT -j OUTGOINGFW
	/sbin/iptables -t nat -N CUSTOMPREROUTING
	/sbin/iptables -t nat -N OVPNNAT
	/sbin/iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	/sbin/iptables -t nat -N CUSTOMPOSTROUTING
	/sbin/iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING
	/sbin/iptables -t nat -A POSTROUTING -j OVPNNAT

	# Block OpenVPN transfer networks
	/sbin/iptables -N OVPNBLOCK
	for i in INPUT FORWARD OUTPUT; do
		/sbin/iptables -A ${i} -j OVPNBLOCK
	done

	# IPTV chains for IGMPPROXY
	/sbin/iptables -N IPTVINPUT
	/sbin/iptables -A INPUT -j IPTVINPUT
	/sbin/iptables -N IPTVFORWARD
	/sbin/iptables -A FORWARD -j IPTVFORWARD

	# filtering from GUI
	/sbin/iptables -N GUIINPUT
	/sbin/iptables -A INPUT -j GUIINPUT
	/sbin/iptables -A GUIINPUT -p icmp --icmp-type 8 -j ACCEPT

	# Accept everything on loopback
	/sbin/iptables -N LOOPBACK
	/sbin/iptables -A LOOPBACK -i lo -j ACCEPT
	/sbin/iptables -A LOOPBACK -o lo -j ACCEPT

	# Filter all packets with loopback addresses on non-loopback interfaces.
	/sbin/iptables -A LOOPBACK -s 127.0.0.0/8 -j DROP
	/sbin/iptables -A LOOPBACK -d 127.0.0.0/8 -j DROP

	for i in INPUT FORWARD OUTPUT; do
		/sbin/iptables -A ${i} -j LOOPBACK
	done

	# Accept everything connected
	for i in INPUT FORWARD OUTPUT; do
		/sbin/iptables -A ${i} -j CONNTRACK
	done

	# trafic from ipsecX/TUN/TAP interfaces, before "-i GREEN_DEV" accept everything
	/sbin/iptables -N IPSECINPUT
	/sbin/iptables -N IPSECFORWARD
	/sbin/iptables -N IPSECOUTPUT
	/sbin/iptables -N OPENSSLVIRTUAL
	/sbin/iptables -A INPUT -j IPSECINPUT
	/sbin/iptables -A INPUT -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL INPUT"
	/sbin/iptables -A FORWARD -j IPSECFORWARD
	/sbin/iptables -A FORWARD -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL FORWARD"
	/sbin/iptables -A OUTPUT -j IPSECOUTPUT
	/sbin/iptables -t nat -N IPSECNAT
	/sbin/iptables -t nat -A POSTROUTING -j IPSECNAT

	# Input Firewall
	/sbin/iptables -N INPUTFW
	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j INPUTFW

	# localhost and ethernet.
	/sbin/iptables -A INPUT   -i $GREEN_DEV  -m conntrack --ctstate NEW -j ACCEPT ! -p icmp
	
	# allow DHCP on BLUE to be turned on/off
	/sbin/iptables -N DHCPBLUEINPUT 
	/sbin/iptables -A INPUT -j DHCPBLUEINPUT
	
	# WIRELESS chains
	/sbin/iptables -N WIRELESSINPUT
	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j WIRELESSINPUT
	/sbin/iptables -N WIRELESSFORWARD
	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j WIRELESSFORWARD
	
	# Forward Firewall
	/sbin/iptables -N FORWARDFW
	/sbin/iptables -A FORWARD -j FORWARDFW
		
	# OPenSSL
	/sbin/iptables -N OPENSSLPHYSICAL
	/sbin/iptables -A INPUT -j OPENSSLPHYSICAL

	# RED chain, used for the red interface
	/sbin/iptables -N REDINPUT
	/sbin/iptables -A INPUT -j REDINPUT
	/sbin/iptables -N REDFORWARD
	/sbin/iptables -A FORWARD -j REDFORWARD
	/sbin/iptables -t nat -N REDNAT
	/sbin/iptables -t nat -A POSTROUTING -j REDNAT

	iptables_red
		
	# Custom prerouting chains (for transparent proxy and port forwarding)
	/sbin/iptables -t nat -N SQUID
	/sbin/iptables -t nat -A PREROUTING -j SQUID
	/sbin/iptables -t nat -N NAT_DESTINATION
	/sbin/iptables -t nat -N NAT_SOURCE
	/sbin/iptables -t nat -A PREROUTING -j NAT_DESTINATION
	/sbin/iptables -t nat -I POSTROUTING 3 -j NAT_SOURCE
	
	
	
	# upnp chain for our upnp daemon
	/sbin/iptables -t nat -N UPNPFW
	/sbin/iptables -t nat -A PREROUTING -j UPNPFW
	/sbin/iptables -N UPNPFW
	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j UPNPFW

	# Postrouting rules (for port forwarding)
	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT --to-source $GREEN_ADDRESS
	if [ "$BLUE_DEV" != "" ]; then
		/sbin/iptables -t nat -A POSTROUTING -m mark --mark 2 -j SNAT --to-source $BLUE_ADDRESS
	fi
	if [ "$ORANGE_DEV" != "" ]; then
		/sbin/iptables -t nat -A POSTROUTING -m mark --mark 3 -j SNAT --to-source $ORANGE_ADDRESS
	fi

	# run local firewall configuration, if present
 	if [ -x /etc/sysconfig/firewall.local ]; then
		/etc/sysconfig/firewall.local start
	fi

	# run openvpn
	/usr/local/bin/openvpnctrl --create-chains-and-rules

	# run wirelessctrl
	/usr/local/bin/wirelessctrl

	#POLICY CHAIN
	/sbin/iptables -N POLICYIN
	/sbin/iptables -A INPUT -j POLICYIN
	/sbin/iptables -N POLICYFWD
	/sbin/iptables -A FORWARD -j POLICYFWD
	/sbin/iptables -N POLICYOUT
	/sbin/iptables -A OUTPUT -j POLICYOUT

	/usr/sbin/firewall-policy

	# read new firewall
	/usr/local/bin/forwardfwctrl

	if [ "$DROPINPUT" == "on" ]; then
		/sbin/iptables -A INPUT   -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
	fi
	/sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
	if [ "$DROPFORWARD" == "on" ]; then
		/sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
	fi
	/sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
}

iptables_red() {
	/sbin/iptables -F REDINPUT
	/sbin/iptables -F REDFORWARD
	/sbin/iptables -t nat -F REDNAT

	# PPPoE / PPTP Device
	if [ "$IFACE" != "" ]; then
		# PPPoE / PPTP
		if [ "$DEVICE" != "" ]; then
			/sbin/iptables -A REDINPUT -i $DEVICE -j ACCEPT
		fi
		if [ "$RED_TYPE" == "PPTP" -o "$RED_TYPE" == "PPPOE" ]; then
			if [ "$RED_DEV" != "" ]; then
				/sbin/iptables -A REDINPUT -i $RED_DEV -j ACCEPT
			fi
		fi
	fi

	# PPTP over DHCP
	if [ "$DEVICE" != "" -a "$TYPE" == "PPTP" -a "$METHOD" == "DHCP" ]; then
		/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
		/sbin/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
			/sbin/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
			/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
			/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
		fi
		if [ "$METHOD" == "DHCP"  -a "$PROTOCOL" == "RFC1483" ]; then
			/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
			/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
		fi

		# Outgoing masquerading (don't masqerade IPSEC (mark 50))
		/sbin/iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
		/sbin/iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE

	fi
}

# See how we were called.
case "$1" in
  start)
	iptables_init
	;;
  reload)
	iptables_red
	# run local firewall configuration, if present
	if [ -x /etc/sysconfig/firewall.local ]; then
		/etc/sysconfig/firewall.local reload
	fi
	;;
  restart)
	# run local firewall configuration, if present
	if [ -x /etc/sysconfig/firewall.local ]; then
		/etc/sysconfig/firewall.local stop
	fi
	$0 start
	;;
  *)
        echo "Usage: $0 {start|reload|restart}"
        exit 1
	;;
esac

exit 0
Commit	Line	Data
3a1019f6 MT	1	#!/bin/sh
	2
	3	eval $(/usr/local/bin/readhash /var/ipfire/ppp/settings)
	4	eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
fe0cd647	5	eval $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings)
3a1019f6 MT	6	IFACE=`/bin/cat /var/ipfire/red/iface 2> /dev/null \| /usr/bin/tr -d '\012'`
	7
	8	if [ -f /var/ipfire/red/device ]; then
	9	DEVICE=`/bin/cat /var/ipfire/red/device 2> /dev/null \| /usr/bin/tr -d '\012'`
	10	fi
	11
	12	iptables_init() {
	13	# Flush all rules and delete all custom chains
	14	/sbin/iptables -F
	15	/sbin/iptables -t nat -F
	16	/sbin/iptables -t mangle -F
	17	/sbin/iptables -X
	18	/sbin/iptables -t nat -X
	19	/sbin/iptables -t mangle -X
	20
	21	# Set up policies
	22	/sbin/iptables -P INPUT DROP
	23	/sbin/iptables -P FORWARD DROP
	24	/sbin/iptables -P OUTPUT ACCEPT
	25
	26	# Empty LOG_DROP and LOG_REJECT chains
	27	/sbin/iptables -N LOG_DROP
	28	/sbin/iptables -A LOG_DROP -m limit --limit 10/minute -j LOG
	29	/sbin/iptables -A LOG_DROP -j DROP
	30	/sbin/iptables -N LOG_REJECT
	31	/sbin/iptables -A LOG_REJECT -m limit --limit 10/minute -j LOG
	32	/sbin/iptables -A LOG_REJECT -j REJECT
	33
	34	# This chain will log, then DROPs packets with certain bad combinations
	35	# of flags might indicate a port-scan attempt (xmas, null, etc)
	36	/sbin/iptables -N PSCAN
5595bc03	37	if [ "$DROPPORTSCAN" == "on" ]; then
97fe1741	38	/sbin/iptables -A PSCAN -p tcp -m limit --limit 10/minute -j LOG --log-prefix "DROP_TCP Scan " -m comment --comment "DROP_TCP PScan"
fe0cd647	39	/sbin/iptables -A PSCAN -p udp -m limit --limit 10/minute -j LOG --log-prefix "DROP_UDP Scan " -m comment --comment "DROP_UDP PScan"
97fe1741 CS	40	/sbin/iptables -A PSCAN -p icmp -m limit --limit 10/minute -j LOG --log-prefix "DROP_ICMP Scan " -m comment --comment "DROP_ICMP PScan"
97fe1741 CS	41	/sbin/iptables -A PSCAN -f -m limit --limit 10/minute -j LOG --log-prefix "DROP_FRAG Scan " -m comment --comment "DROP_FRAG PScan"
5595bc03	42	fi
97fe1741	43	/sbin/iptables -A PSCAN -j DROP -m comment --comment "DROP_PScan"
3a1019f6 MT	44
	45	# New tcp packets without SYN set - could well be an obscure type of port scan
	46	# that's not covered above, may just be a broken windows machine
	47	/sbin/iptables -N NEWNOTSYN
5595bc03	48	if [ "$DROPNEWNOTSYN" == "on" ]; then
97fe1741	49	/sbin/iptables -A NEWNOTSYN -m limit --limit 10/minute -j LOG --log-prefix "DROP_NEWNOTSYN "
5595bc03	50	fi
97fe1741	51	/sbin/iptables -A NEWNOTSYN -j DROP -m comment --comment "DROP_NEWNOTSYN"
3a1019f6 MT	52
	53	# Chain to contain all the rules relating to bad TCP flags
	54	/sbin/iptables -N BADTCP
	55
d8158ca6	56	#Don't check loopback
a56df4ee	57	/sbin/iptables -A BADTCP -i lo -j RETURN
d8158ca6	58
3a1019f6 MT	59	# Disallow packets frequently used by port-scanners
	60	# nmap xmas
	61	/sbin/iptables -A BADTCP -p tcp --tcp-flags ALL FIN,URG,PSH -j PSCAN
	62	# Null
	63	/sbin/iptables -A BADTCP -p tcp --tcp-flags ALL NONE -j PSCAN
	64	# FIN
	65	/sbin/iptables -A BADTCP -p tcp --tcp-flags ALL FIN -j PSCAN
	66	# SYN/RST (also catches xmas variants that set SYN+RST+...)
	67	/sbin/iptables -A BADTCP -p tcp --tcp-flags SYN,RST SYN,RST -j PSCAN
	68	# SYN/FIN (QueSO or nmap OS probe)
	69	/sbin/iptables -A BADTCP -p tcp --tcp-flags SYN,FIN SYN,FIN -j PSCAN
	70	# NEW TCP without SYN
b85d2a98 MT	71	/sbin/iptables -A BADTCP -p tcp ! --syn -m conntrack --ctstate NEW -j NEWNOTSYN
b85d2a98 MT	72
c0359d6d MT	73	/sbin/iptables -A INPUT -p tcp -j BADTCP
	74	/sbin/iptables -A FORWARD -p tcp -j BADTCP
	75
b85d2a98 MT	76	# Connection tracking chain
	77	/sbin/iptables -N CONNTRACK
	78	/sbin/iptables -A CONNTRACK -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
3a1019f6	79
3a1019f6 MT	80	# Fix for braindead ISP's
	81	/sbin/iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
	82
	83	# CUSTOM chains, can be used by the users themselves
	84	/sbin/iptables -N CUSTOMINPUT
	85	/sbin/iptables -A INPUT -j CUSTOMINPUT
057249ba CS	86	/sbin/iptables -N GUARDIAN
	87	/sbin/iptables -A INPUT -j GUARDIAN
	88	/sbin/iptables -A FORWARD -j GUARDIAN
3a1019f6 MT	89	/sbin/iptables -N CUSTOMFORWARD
	90	/sbin/iptables -A FORWARD -j CUSTOMFORWARD
	91	/sbin/iptables -N CUSTOMOUTPUT
	92	/sbin/iptables -A OUTPUT -j CUSTOMOUTPUT
4cb74dce MT	93	/sbin/iptables -N OUTGOINGFW
4cb74dce MT	94	/sbin/iptables -A OUTPUT -j OUTGOINGFW
3a1019f6	95	/sbin/iptables -t nat -N CUSTOMPREROUTING
690b0bd7	96	/sbin/iptables -t nat -N OVPNNAT
3a1019f6 MT	97	/sbin/iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	98	/sbin/iptables -t nat -N CUSTOMPOSTROUTING
	99	/sbin/iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING
690b0bd7	100	/sbin/iptables -t nat -A POSTROUTING -j OVPNNAT
3a1019f6	101
1e555330 MT	102	# Block OpenVPN transfer networks
	103	/sbin/iptables -N OVPNBLOCK
	104	for i in INPUT FORWARD OUTPUT; do
	105	/sbin/iptables -A ${i} -j OVPNBLOCK
	106	done
	107
daa1ceba AF	108	# IPTV chains for IGMPPROXY
	109	/sbin/iptables -N IPTVINPUT
	110	/sbin/iptables -A INPUT -j IPTVINPUT
	111	/sbin/iptables -N IPTVFORWARD
	112	/sbin/iptables -A FORWARD -j IPTVFORWARD
	113
3a1019f6 MT	114	# filtering from GUI
	115	/sbin/iptables -N GUIINPUT
	116	/sbin/iptables -A INPUT -j GUIINPUT
905fbf3e	117	/sbin/iptables -A GUIINPUT -p icmp --icmp-type 8 -j ACCEPT
3a1019f6	118
afc611d4 MT	119	# Accept everything on loopback
	120	/sbin/iptables -N LOOPBACK
	121	/sbin/iptables -A LOOPBACK -i lo -j ACCEPT
	122	/sbin/iptables -A LOOPBACK -o lo -j ACCEPT
	123
3b9a23ce MT	124	# Filter all packets with loopback addresses on non-loopback interfaces.
	125	/sbin/iptables -A LOOPBACK -s 127.0.0.0/8 -j DROP
	126	/sbin/iptables -A LOOPBACK -d 127.0.0.0/8 -j DROP
	127
	128	for i in INPUT FORWARD OUTPUT; do
	129	/sbin/iptables -A ${i} -j LOOPBACK
	130	done
afc611d4	131
3a1019f6	132	# Accept everything connected
b85d2a98 MT	133	for i in INPUT FORWARD OUTPUT; do
	134	/sbin/iptables -A ${i} -j CONNTRACK
	135	done
	136
5fd30232	137	# trafic from ipsecX/TUN/TAP interfaces, before "-i GREEN_DEV" accept everything
6652626c AF	138	/sbin/iptables -N IPSECINPUT
	139	/sbin/iptables -N IPSECFORWARD
	140	/sbin/iptables -N IPSECOUTPUT
5fd30232	141	/sbin/iptables -N OPENSSLVIRTUAL
6652626c	142	/sbin/iptables -A INPUT -j IPSECINPUT
5595bc03	143	/sbin/iptables -A INPUT -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL INPUT"
6652626c	144	/sbin/iptables -A FORWARD -j IPSECFORWARD
5595bc03	145	/sbin/iptables -A FORWARD -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL FORWARD"
6652626c	146	/sbin/iptables -A OUTPUT -j IPSECOUTPUT
c4cd0f7b AF	147	/sbin/iptables -t nat -N IPSECNAT
c4cd0f7b AF	148	/sbin/iptables -t nat -A POSTROUTING -j IPSECNAT
b68e5c14	149
231499fc AM	150	# Input Firewall
231499fc AM	151	/sbin/iptables -N INPUTFW
b85d2a98	152	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j INPUTFW
231499fc	153
3a1019f6	154	# localhost and ethernet.
b85d2a98	155	/sbin/iptables -A INPUT -i $GREEN_DEV -m conntrack --ctstate NEW -j ACCEPT ! -p icmp
218b3341	156
3a1019f6 MT	157	# allow DHCP on BLUE to be turned on/off
	158	/sbin/iptables -N DHCPBLUEINPUT
	159	/sbin/iptables -A INPUT -j DHCPBLUEINPUT
81393987 AM	160
	161	# WIRELESS chains
	162	/sbin/iptables -N WIRELESSINPUT
b85d2a98	163	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j WIRELESSINPUT
81393987	164	/sbin/iptables -N WIRELESSFORWARD
b85d2a98	165	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j WIRELESSFORWARD
12dcfbbd	166
93b75f31 AM	167	# Forward Firewall
	168	/sbin/iptables -N FORWARDFW
	169	/sbin/iptables -A FORWARD -j FORWARDFW
	170
5fd30232 MT	171	# OPenSSL
	172	/sbin/iptables -N OPENSSLPHYSICAL
	173	/sbin/iptables -A INPUT -j OPENSSLPHYSICAL
3a1019f6	174
3a1019f6 MT	175	# RED chain, used for the red interface
	176	/sbin/iptables -N REDINPUT
	177	/sbin/iptables -A INPUT -j REDINPUT
	178	/sbin/iptables -N REDFORWARD
	179	/sbin/iptables -A FORWARD -j REDFORWARD
	180	/sbin/iptables -t nat -N REDNAT
	181	/sbin/iptables -t nat -A POSTROUTING -j REDNAT
	182
	183	iptables_red
218b3341	184
3a1019f6 MT	185	# Custom prerouting chains (for transparent proxy and port forwarding)
	186	/sbin/iptables -t nat -N SQUID
	187	/sbin/iptables -t nat -A PREROUTING -j SQUID
9efd8d1c AM	188	/sbin/iptables -t nat -N NAT_DESTINATION
	189	/sbin/iptables -t nat -N NAT_SOURCE
	190	/sbin/iptables -t nat -A PREROUTING -j NAT_DESTINATION
690b0bd7 AM	191	/sbin/iptables -t nat -I POSTROUTING 3 -j NAT_SOURCE
690b0bd7 AM	192
9efd8d1c AM	193
9efd8d1c AM	194
7e7495b3 MT	195	# upnp chain for our upnp daemon
	196	/sbin/iptables -t nat -N UPNPFW
	197	/sbin/iptables -t nat -A PREROUTING -j UPNPFW
54194ba4	198	/sbin/iptables -N UPNPFW
b85d2a98	199	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j UPNPFW
3a1019f6	200
3a1019f6	201	# Postrouting rules (for port forwarding)
690b0bd7	202	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT --to-source $GREEN_ADDRESS
3a1019f6 MT	203	if [ "$BLUE_DEV" != "" ]; then
	204	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 2 -j SNAT --to-source $BLUE_ADDRESS
	205	fi
	206	if [ "$ORANGE_DEV" != "" ]; then
	207	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 3 -j SNAT --to-source $ORANGE_ADDRESS
	208	fi
	209
3a1019f6 MT	210	# run local firewall configuration, if present
	211	if [ -x /etc/sysconfig/firewall.local ]; then
	212	/etc/sysconfig/firewall.local start
	213	fi
690b0bd7	214
ff4770c7 AM	215	# run openvpn
	216	/usr/local/bin/openvpnctrl --create-chains-and-rules
	217
	218	# run wirelessctrl
	219	/usr/local/bin/wirelessctrl
	220
62fc8511	221	#POLICY CHAIN
a9b3ae26 AM	222	/sbin/iptables -N POLICYIN
a9b3ae26 AM	223	/sbin/iptables -A INPUT -j POLICYIN
5d7faa45 AM	224	/sbin/iptables -N POLICYFWD
	225	/sbin/iptables -A FORWARD -j POLICYFWD
	226	/sbin/iptables -N POLICYOUT
	227	/sbin/iptables -A OUTPUT -j POLICYOUT
b324de14	228
5d7faa45	229	/usr/sbin/firewall-policy
690b0bd7	230
ff4770c7 AM	231	# read new firewall
	232	/usr/local/bin/forwardfwctrl
	233
690b0bd7 AM	234	if [ "$DROPINPUT" == "on" ]; then
	235	/sbin/iptables -A INPUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
	236	fi
e41b651b	237	/sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
690b0bd7 AM	238	if [ "$DROPFORWARD" == "on" ]; then
	239	/sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
	240	fi
	241	/sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
ff4770c7	242	}
3a1019f6	243
ff4770c7 AM	244	iptables_red() {
	245	/sbin/iptables -F REDINPUT
	246	/sbin/iptables -F REDFORWARD
	247	/sbin/iptables -t nat -F REDNAT
3a1019f6	248
ff4770c7 AM	249	# PPPoE / PPTP Device
	250	if [ "$IFACE" != "" ]; then
	251	# PPPoE / PPTP
	252	if [ "$DEVICE" != "" ]; then
	253	/sbin/iptables -A REDINPUT -i $DEVICE -j ACCEPT
	254	fi
	255	if [ "$RED_TYPE" == "PPTP" -o "$RED_TYPE" == "PPPOE" ]; then
	256	if [ "$RED_DEV" != "" ]; then
	257	/sbin/iptables -A REDINPUT -i $RED_DEV -j ACCEPT
	258	fi
	259	fi
3a1019f6	260	fi
ff4770c7 AM	261
	262	# PPTP over DHCP
	263	if [ "$DEVICE" != "" -a "$TYPE" == "PPTP" -a "$METHOD" == "DHCP" ]; then
	264	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
	265	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
3a1019f6 MT	266	fi
3a1019f6 MT	267
ff4770c7 AM	268	# Orange pinholes
	269	if [ "$ORANGE_DEV" != "" ]; then
	270	# This rule enables a host on ORANGE network to connect to the outside
	271	# (only if we have a red connection)
	272	if [ "$IFACE" != "" ]; then
	273	/sbin/iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
	274	fi
3a1019f6	275	fi
c400fe4c	276
ff4770c7 AM	277	if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
	278	# DHCP
	279	if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; then
	280	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	281	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	282	fi
	283	if [ "$METHOD" == "DHCP" -a "$PROTOCOL" == "RFC1483" ]; then
	284	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	285	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	286	fi
	287
	288	# Outgoing masquerading (don't masqerade IPSEC (mark 50))
	289	/sbin/iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
	290	/sbin/iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
c400fe4c	291
6be0579b	292	fi
ff4770c7 AM	293	}
	294
	295	# See how we were called.
	296	case "$1" in
	297	start)
	298	iptables_init
6be0579b	299	;;
3a1019f6 MT	300	reload)
3a1019f6 MT	301	iptables_red
3a1019f6	302	# run local firewall configuration, if present
ff4770c7	303	if [ -x /etc/sysconfig/firewall.local ]; then
3a1019f6 MT	304	/etc/sysconfig/firewall.local reload
	305	fi
	306	;;
	307	restart)
ff4770c7 AM	308	# run local firewall configuration, if present
	309	if [ -x /etc/sysconfig/firewall.local ]; then
	310	/etc/sysconfig/firewall.local stop
	311	fi
3a1019f6 MT	312	$0 start
	313	;;
	314	*)
ff4770c7	315	echo "Usage: $0 {start\|reload\|restart}"
3a1019f6 MT	316	exit 1
	317	;;
	318	esac
	319
	320	exit 0