[people/teissler/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 CUSTOMFORWARD
	/sbin/iptables -A FORWARD -j CUSTOMFORWARD
	/sbin/iptables -N CUSTOMOUTPUT
	/sbin/iptables -A OUTPUT -j CUSTOMOUTPUT
	/sbin/iptables -t nat -N CUSTOMPREROUTING
	/sbin/iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	/sbin/iptables -t nat -N CUSTOMPOSTROUTING
	/sbin/iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING

	# Guardian (IPS) chains
	/sbin/iptables -N GUARDIAN
	/sbin/iptables -A INPUT -j GUARDIAN
	/sbin/iptables -A FORWARD -j GUARDIAN

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

	# OpenVPN transfer network translation
	/sbin/iptables -t nat -N OVPNNAT
	/sbin/iptables -t nat -A POSTROUTING -j OVPNNAT

	# 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

	# 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
	
	# Jump into the actual firewall ruleset.
	/sbin/iptables -N INPUTFW
	/sbin/iptables -A INPUT -j INPUTFW

	/sbin/iptables -N OUTGOINGFW
	/sbin/iptables -A OUTPUT -j OUTGOINGFW

	/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
	86	/sbin/iptables -N CUSTOMFORWARD
	87	/sbin/iptables -A FORWARD -j CUSTOMFORWARD
	88	/sbin/iptables -N CUSTOMOUTPUT
	89	/sbin/iptables -A OUTPUT -j CUSTOMOUTPUT
	90	/sbin/iptables -t nat -N CUSTOMPREROUTING
	91	/sbin/iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	92	/sbin/iptables -t nat -N CUSTOMPOSTROUTING
	93	/sbin/iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING
	94
815eaff4 MT	95	# Guardian (IPS) chains
	96	/sbin/iptables -N GUARDIAN
	97	/sbin/iptables -A INPUT -j GUARDIAN
	98	/sbin/iptables -A FORWARD -j GUARDIAN
	99
1e555330 MT	100	# Block OpenVPN transfer networks
	101	/sbin/iptables -N OVPNBLOCK
	102	for i in INPUT FORWARD OUTPUT; do
	103	/sbin/iptables -A ${i} -j OVPNBLOCK
	104	done
	105
51ab1de1 MT	106	# OpenVPN transfer network translation
	107	/sbin/iptables -t nat -N OVPNNAT
	108	/sbin/iptables -t nat -A POSTROUTING -j OVPNNAT
	109
daa1ceba AF	110	# IPTV chains for IGMPPROXY
	111	/sbin/iptables -N IPTVINPUT
	112	/sbin/iptables -A INPUT -j IPTVINPUT
	113	/sbin/iptables -N IPTVFORWARD
	114	/sbin/iptables -A FORWARD -j IPTVFORWARD
	115
3a1019f6 MT	116	# filtering from GUI
	117	/sbin/iptables -N GUIINPUT
	118	/sbin/iptables -A INPUT -j GUIINPUT
905fbf3e	119	/sbin/iptables -A GUIINPUT -p icmp --icmp-type 8 -j ACCEPT
3a1019f6	120
afc611d4 MT	121	# Accept everything on loopback
	122	/sbin/iptables -N LOOPBACK
	123	/sbin/iptables -A LOOPBACK -i lo -j ACCEPT
	124	/sbin/iptables -A LOOPBACK -o lo -j ACCEPT
	125
3b9a23ce MT	126	# Filter all packets with loopback addresses on non-loopback interfaces.
	127	/sbin/iptables -A LOOPBACK -s 127.0.0.0/8 -j DROP
	128	/sbin/iptables -A LOOPBACK -d 127.0.0.0/8 -j DROP
	129
	130	for i in INPUT FORWARD OUTPUT; do
	131	/sbin/iptables -A ${i} -j LOOPBACK
	132	done
afc611d4	133
3a1019f6	134	# Accept everything connected
b85d2a98 MT	135	for i in INPUT FORWARD OUTPUT; do
	136	/sbin/iptables -A ${i} -j CONNTRACK
	137	done
	138
5fd30232	139	# trafic from ipsecX/TUN/TAP interfaces, before "-i GREEN_DEV" accept everything
6652626c AF	140	/sbin/iptables -N IPSECINPUT
	141	/sbin/iptables -N IPSECFORWARD
	142	/sbin/iptables -N IPSECOUTPUT
5fd30232	143	/sbin/iptables -N OPENSSLVIRTUAL
6652626c	144	/sbin/iptables -A INPUT -j IPSECINPUT
5595bc03	145	/sbin/iptables -A INPUT -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL INPUT"
6652626c	146	/sbin/iptables -A FORWARD -j IPSECFORWARD
5595bc03	147	/sbin/iptables -A FORWARD -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL FORWARD"
6652626c	148	/sbin/iptables -A OUTPUT -j IPSECOUTPUT
c4cd0f7b AF	149	/sbin/iptables -t nat -N IPSECNAT
c4cd0f7b AF	150	/sbin/iptables -t nat -A POSTROUTING -j IPSECNAT
b68e5c14	151
3a1019f6	152	# localhost and ethernet.
b85d2a98	153	/sbin/iptables -A INPUT -i $GREEN_DEV -m conntrack --ctstate NEW -j ACCEPT ! -p icmp
218b3341	154
3a1019f6 MT	155	# allow DHCP on BLUE to be turned on/off
	156	/sbin/iptables -N DHCPBLUEINPUT
	157	/sbin/iptables -A INPUT -j DHCPBLUEINPUT
81393987 AM	158
	159	# WIRELESS chains
	160	/sbin/iptables -N WIRELESSINPUT
b85d2a98	161	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j WIRELESSINPUT
81393987	162	/sbin/iptables -N WIRELESSFORWARD
b85d2a98	163	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j WIRELESSFORWARD
12dcfbbd	164
d5f1422d MT	165	# Jump into the actual firewall ruleset.
	166	/sbin/iptables -N INPUTFW
	167	/sbin/iptables -A INPUT -j INPUTFW
	168
	169	/sbin/iptables -N OUTGOINGFW
	170	/sbin/iptables -A OUTPUT -j OUTGOINGFW
	171
93b75f31 AM	172	/sbin/iptables -N FORWARDFW
93b75f31 AM	173	/sbin/iptables -A FORWARD -j FORWARDFW
d5f1422d	174
5fd30232 MT	175	# OPenSSL
	176	/sbin/iptables -N OPENSSLPHYSICAL
	177	/sbin/iptables -A INPUT -j OPENSSLPHYSICAL
3a1019f6	178
3a1019f6 MT	179	# RED chain, used for the red interface
	180	/sbin/iptables -N REDINPUT
	181	/sbin/iptables -A INPUT -j REDINPUT
	182	/sbin/iptables -N REDFORWARD
	183	/sbin/iptables -A FORWARD -j REDFORWARD
	184	/sbin/iptables -t nat -N REDNAT
	185	/sbin/iptables -t nat -A POSTROUTING -j REDNAT
	186
	187	iptables_red
218b3341	188
3a1019f6 MT	189	# Custom prerouting chains (for transparent proxy and port forwarding)
	190	/sbin/iptables -t nat -N SQUID
	191	/sbin/iptables -t nat -A PREROUTING -j SQUID
9efd8d1c AM	192	/sbin/iptables -t nat -N NAT_DESTINATION
	193	/sbin/iptables -t nat -N NAT_SOURCE
	194	/sbin/iptables -t nat -A PREROUTING -j NAT_DESTINATION
690b0bd7 AM	195	/sbin/iptables -t nat -I POSTROUTING 3 -j NAT_SOURCE
690b0bd7 AM	196
9efd8d1c AM	197
9efd8d1c AM	198
7e7495b3 MT	199	# upnp chain for our upnp daemon
	200	/sbin/iptables -t nat -N UPNPFW
	201	/sbin/iptables -t nat -A PREROUTING -j UPNPFW
54194ba4	202	/sbin/iptables -N UPNPFW
b85d2a98	203	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j UPNPFW
3a1019f6	204
3a1019f6	205	# Postrouting rules (for port forwarding)
690b0bd7	206	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT --to-source $GREEN_ADDRESS
3a1019f6 MT	207	if [ "$BLUE_DEV" != "" ]; then
	208	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 2 -j SNAT --to-source $BLUE_ADDRESS
	209	fi
	210	if [ "$ORANGE_DEV" != "" ]; then
	211	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 3 -j SNAT --to-source $ORANGE_ADDRESS
	212	fi
	213
3a1019f6 MT	214	# run local firewall configuration, if present
	215	if [ -x /etc/sysconfig/firewall.local ]; then
	216	/etc/sysconfig/firewall.local start
	217	fi
690b0bd7	218
ff4770c7 AM	219	# run openvpn
	220	/usr/local/bin/openvpnctrl --create-chains-and-rules
	221
	222	# run wirelessctrl
	223	/usr/local/bin/wirelessctrl
	224
62fc8511	225	#POLICY CHAIN
a9b3ae26 AM	226	/sbin/iptables -N POLICYIN
a9b3ae26 AM	227	/sbin/iptables -A INPUT -j POLICYIN
5d7faa45 AM	228	/sbin/iptables -N POLICYFWD
	229	/sbin/iptables -A FORWARD -j POLICYFWD
	230	/sbin/iptables -N POLICYOUT
	231	/sbin/iptables -A OUTPUT -j POLICYOUT
b324de14	232
5d7faa45	233	/usr/sbin/firewall-policy
690b0bd7	234
ff4770c7 AM	235	# read new firewall
	236	/usr/local/bin/forwardfwctrl
	237
690b0bd7 AM	238	if [ "$DROPINPUT" == "on" ]; then
	239	/sbin/iptables -A INPUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
	240	fi
e41b651b	241	/sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
690b0bd7 AM	242	if [ "$DROPFORWARD" == "on" ]; then
	243	/sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
	244	fi
	245	/sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
ff4770c7	246	}
3a1019f6	247
ff4770c7 AM	248	iptables_red() {
	249	/sbin/iptables -F REDINPUT
	250	/sbin/iptables -F REDFORWARD
	251	/sbin/iptables -t nat -F REDNAT
3a1019f6	252
ff4770c7 AM	253	# PPPoE / PPTP Device
	254	if [ "$IFACE" != "" ]; then
	255	# PPPoE / PPTP
	256	if [ "$DEVICE" != "" ]; then
	257	/sbin/iptables -A REDINPUT -i $DEVICE -j ACCEPT
	258	fi
	259	if [ "$RED_TYPE" == "PPTP" -o "$RED_TYPE" == "PPPOE" ]; then
	260	if [ "$RED_DEV" != "" ]; then
	261	/sbin/iptables -A REDINPUT -i $RED_DEV -j ACCEPT
	262	fi
	263	fi
3a1019f6	264	fi
ff4770c7 AM	265
	266	# PPTP over DHCP
	267	if [ "$DEVICE" != "" -a "$TYPE" == "PPTP" -a "$METHOD" == "DHCP" ]; then
	268	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
	269	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
3a1019f6 MT	270	fi
3a1019f6 MT	271
ff4770c7 AM	272	# Orange pinholes
	273	if [ "$ORANGE_DEV" != "" ]; then
	274	# This rule enables a host on ORANGE network to connect to the outside
	275	# (only if we have a red connection)
	276	if [ "$IFACE" != "" ]; then
	277	/sbin/iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
	278	fi
3a1019f6	279	fi
c400fe4c	280
ff4770c7 AM	281	if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
	282	# DHCP
	283	if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; 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 $IFACE -j ACCEPT
	286	fi
	287	if [ "$METHOD" == "DHCP" -a "$PROTOCOL" == "RFC1483" ]; then
	288	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	289	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	290	fi
	291
	292	# Outgoing masquerading (don't masqerade IPSEC (mark 50))
	293	/sbin/iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
	294	/sbin/iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
c400fe4c	295
6be0579b	296	fi
ff4770c7 AM	297	}
	298
	299	# See how we were called.
	300	case "$1" in
	301	start)
	302	iptables_init
6be0579b	303	;;
3a1019f6 MT	304	reload)
3a1019f6 MT	305	iptables_red
3a1019f6	306	# run local firewall configuration, if present
ff4770c7	307	if [ -x /etc/sysconfig/firewall.local ]; then
3a1019f6 MT	308	/etc/sysconfig/firewall.local reload
	309	fi
	310	;;
	311	restart)
ff4770c7 AM	312	# run local firewall configuration, if present
	313	if [ -x /etc/sysconfig/firewall.local ]; then
	314	/etc/sysconfig/firewall.local stop
	315	fi
3a1019f6 MT	316	$0 start
	317	;;
	318	*)
ff4770c7	319	echo "Usage: $0 {start\|reload\|restart}"
3a1019f6 MT	320	exit 1
	321	;;
	322	esac
	323
	324	exit 0