[people/pmueller/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 -N OVPNBLOCK
	/sbin/iptables -A FORWARD -j OVPNBLOCK
	/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 OVPNBLOCK
	/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

	# 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 ovpn networks INPUT
	/sbin/iptables -A INPUT -j OVPNBLOCK

	# 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

	/sbin/iptables -A INPUT  -j LOOPBACK
	/sbin/iptables -A OUTPUT -j LOOPBACK

	# 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 lo -m conntrack --ctstate NEW -j ACCEPT
	/sbin/iptables -A INPUT   -s 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP   # Loopback not on lo
	/sbin/iptables -A INPUT   -d 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP
	/sbin/iptables -A FORWARD -i lo -m conntrack --ctstate NEW -j ACCEPT
	/sbin/iptables -A FORWARD -s 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP
	/sbin/iptables -A FORWARD -d 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP
	/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
057249ba CS	87	/sbin/iptables -A INPUT -j GUARDIAN
690b0bd7 AM	88	/sbin/iptables -N OVPNBLOCK
690b0bd7 AM	89	/sbin/iptables -A FORWARD -j OVPNBLOCK
057249ba	90	/sbin/iptables -A FORWARD -j GUARDIAN
3a1019f6 MT	91	/sbin/iptables -N CUSTOMFORWARD
	92	/sbin/iptables -A FORWARD -j CUSTOMFORWARD
	93	/sbin/iptables -N CUSTOMOUTPUT
690b0bd7	94	/sbin/iptables -A OUTPUT -j OVPNBLOCK
3a1019f6	95	/sbin/iptables -A OUTPUT -j CUSTOMOUTPUT
4cb74dce MT	96	/sbin/iptables -N OUTGOINGFW
4cb74dce MT	97	/sbin/iptables -A OUTPUT -j OUTGOINGFW
3a1019f6	98	/sbin/iptables -t nat -N CUSTOMPREROUTING
690b0bd7	99	/sbin/iptables -t nat -N OVPNNAT
3a1019f6 MT	100	/sbin/iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	101	/sbin/iptables -t nat -N CUSTOMPOSTROUTING
	102	/sbin/iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING
690b0bd7	103	/sbin/iptables -t nat -A POSTROUTING -j OVPNNAT
3a1019f6	104
daa1ceba AF	105	# IPTV chains for IGMPPROXY
	106	/sbin/iptables -N IPTVINPUT
	107	/sbin/iptables -A INPUT -j IPTVINPUT
	108	/sbin/iptables -N IPTVFORWARD
	109	/sbin/iptables -A FORWARD -j IPTVFORWARD
	110
690b0bd7 AM	111	# Filtering ovpn networks INPUT
	112	/sbin/iptables -A INPUT -j OVPNBLOCK
	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
	124	/sbin/iptables -A INPUT -j LOOPBACK
	125	/sbin/iptables -A OUTPUT -j LOOPBACK
	126
3a1019f6	127	# Accept everything connected
b85d2a98 MT	128	for i in INPUT FORWARD OUTPUT; do
	129	/sbin/iptables -A ${i} -j CONNTRACK
	130	done
	131
5fd30232	132	# trafic from ipsecX/TUN/TAP interfaces, before "-i GREEN_DEV" accept everything
6652626c AF	133	/sbin/iptables -N IPSECINPUT
	134	/sbin/iptables -N IPSECFORWARD
	135	/sbin/iptables -N IPSECOUTPUT
5fd30232	136	/sbin/iptables -N OPENSSLVIRTUAL
6652626c	137	/sbin/iptables -A INPUT -j IPSECINPUT
5595bc03	138	/sbin/iptables -A INPUT -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL INPUT"
6652626c	139	/sbin/iptables -A FORWARD -j IPSECFORWARD
5595bc03	140	/sbin/iptables -A FORWARD -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL FORWARD"
6652626c	141	/sbin/iptables -A OUTPUT -j IPSECOUTPUT
c4cd0f7b AF	142	/sbin/iptables -t nat -N IPSECNAT
c4cd0f7b AF	143	/sbin/iptables -t nat -A POSTROUTING -j IPSECNAT
b68e5c14	144
231499fc AM	145	# Input Firewall
231499fc AM	146	/sbin/iptables -N INPUTFW
b85d2a98	147	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j INPUTFW
231499fc	148
3a1019f6	149	# localhost and ethernet.
b85d2a98 MT	150	/sbin/iptables -A INPUT -i lo -m conntrack --ctstate NEW -j ACCEPT
	151	/sbin/iptables -A INPUT -s 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP # Loopback not on lo
	152	/sbin/iptables -A INPUT -d 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP
	153	/sbin/iptables -A FORWARD -i lo -m conntrack --ctstate NEW -j ACCEPT
	154	/sbin/iptables -A FORWARD -s 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP
	155	/sbin/iptables -A FORWARD -d 127.0.0.0/8 -m conntrack --ctstate NEW -j DROP
	156	/sbin/iptables -A INPUT -i $GREEN_DEV -m conntrack --ctstate NEW -j ACCEPT ! -p icmp
218b3341	157
3a1019f6 MT	158	# allow DHCP on BLUE to be turned on/off
	159	/sbin/iptables -N DHCPBLUEINPUT
	160	/sbin/iptables -A INPUT -j DHCPBLUEINPUT
81393987 AM	161
	162	# WIRELESS chains
	163	/sbin/iptables -N WIRELESSINPUT
b85d2a98	164	/sbin/iptables -A INPUT -m conntrack --ctstate NEW -j WIRELESSINPUT
81393987	165	/sbin/iptables -N WIRELESSFORWARD
b85d2a98	166	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j WIRELESSFORWARD
12dcfbbd	167
93b75f31 AM	168	# Forward Firewall
	169	/sbin/iptables -N FORWARDFW
	170	/sbin/iptables -A FORWARD -j FORWARDFW
	171
5fd30232 MT	172	# OPenSSL
	173	/sbin/iptables -N OPENSSLPHYSICAL
	174	/sbin/iptables -A INPUT -j OPENSSLPHYSICAL
3a1019f6	175
3a1019f6 MT	176	# RED chain, used for the red interface
	177	/sbin/iptables -N REDINPUT
	178	/sbin/iptables -A INPUT -j REDINPUT
	179	/sbin/iptables -N REDFORWARD
	180	/sbin/iptables -A FORWARD -j REDFORWARD
	181	/sbin/iptables -t nat -N REDNAT
	182	/sbin/iptables -t nat -A POSTROUTING -j REDNAT
	183
	184	iptables_red
218b3341	185
3a1019f6 MT	186	# Custom prerouting chains (for transparent proxy and port forwarding)
	187	/sbin/iptables -t nat -N SQUID
	188	/sbin/iptables -t nat -A PREROUTING -j SQUID
9efd8d1c AM	189	/sbin/iptables -t nat -N NAT_DESTINATION
	190	/sbin/iptables -t nat -N NAT_SOURCE
	191	/sbin/iptables -t nat -A PREROUTING -j NAT_DESTINATION
690b0bd7 AM	192	/sbin/iptables -t nat -I POSTROUTING 3 -j NAT_SOURCE
690b0bd7 AM	193
9efd8d1c AM	194
9efd8d1c AM	195
7e7495b3 MT	196	# upnp chain for our upnp daemon
	197	/sbin/iptables -t nat -N UPNPFW
	198	/sbin/iptables -t nat -A PREROUTING -j UPNPFW
54194ba4	199	/sbin/iptables -N UPNPFW
b85d2a98	200	/sbin/iptables -A FORWARD -m conntrack --ctstate NEW -j UPNPFW
3a1019f6	201
3a1019f6	202	# Postrouting rules (for port forwarding)
690b0bd7	203	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT --to-source $GREEN_ADDRESS
3a1019f6 MT	204	if [ "$BLUE_DEV" != "" ]; then
	205	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 2 -j SNAT --to-source $BLUE_ADDRESS
	206	fi
	207	if [ "$ORANGE_DEV" != "" ]; then
	208	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 3 -j SNAT --to-source $ORANGE_ADDRESS
	209	fi
	210
3a1019f6 MT	211	# run local firewall configuration, if present
	212	if [ -x /etc/sysconfig/firewall.local ]; then
	213	/etc/sysconfig/firewall.local start
	214	fi
690b0bd7	215
ff4770c7 AM	216	# run openvpn
	217	/usr/local/bin/openvpnctrl --create-chains-and-rules
	218
	219	# run wirelessctrl
	220	/usr/local/bin/wirelessctrl
	221
62fc8511	222	#POLICY CHAIN
a9b3ae26 AM	223	/sbin/iptables -N POLICYIN
a9b3ae26 AM	224	/sbin/iptables -A INPUT -j POLICYIN
5d7faa45 AM	225	/sbin/iptables -N POLICYFWD
	226	/sbin/iptables -A FORWARD -j POLICYFWD
	227	/sbin/iptables -N POLICYOUT
	228	/sbin/iptables -A OUTPUT -j POLICYOUT
b324de14	229
5d7faa45	230	/usr/sbin/firewall-policy
690b0bd7	231
ff4770c7 AM	232	# read new firewall
	233	/usr/local/bin/forwardfwctrl
	234
690b0bd7 AM	235	if [ "$DROPINPUT" == "on" ]; then
	236	/sbin/iptables -A INPUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
	237	fi
e41b651b	238	/sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
690b0bd7 AM	239	if [ "$DROPFORWARD" == "on" ]; then
	240	/sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
	241	fi
	242	/sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
ff4770c7	243	}
3a1019f6	244
ff4770c7 AM	245	iptables_red() {
	246	/sbin/iptables -F REDINPUT
	247	/sbin/iptables -F REDFORWARD
	248	/sbin/iptables -t nat -F REDNAT
3a1019f6	249
ff4770c7 AM	250	# PPPoE / PPTP Device
	251	if [ "$IFACE" != "" ]; then
	252	# PPPoE / PPTP
	253	if [ "$DEVICE" != "" ]; then
	254	/sbin/iptables -A REDINPUT -i $DEVICE -j ACCEPT
	255	fi
	256	if [ "$RED_TYPE" == "PPTP" -o "$RED_TYPE" == "PPPOE" ]; then
	257	if [ "$RED_DEV" != "" ]; then
	258	/sbin/iptables -A REDINPUT -i $RED_DEV -j ACCEPT
	259	fi
	260	fi
3a1019f6	261	fi
ff4770c7 AM	262
	263	# PPTP over DHCP
	264	if [ "$DEVICE" != "" -a "$TYPE" == "PPTP" -a "$METHOD" == "DHCP" ]; then
	265	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
	266	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
3a1019f6 MT	267	fi
3a1019f6 MT	268
ff4770c7 AM	269	# Orange pinholes
	270	if [ "$ORANGE_DEV" != "" ]; then
	271	# This rule enables a host on ORANGE network to connect to the outside
	272	# (only if we have a red connection)
	273	if [ "$IFACE" != "" ]; then
	274	/sbin/iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
	275	fi
3a1019f6	276	fi
c400fe4c	277
ff4770c7 AM	278	if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
	279	# DHCP
	280	if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; then
	281	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	282	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	283	fi
	284	if [ "$METHOD" == "DHCP" -a "$PROTOCOL" == "RFC1483" ]; then
	285	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	286	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	287	fi
	288
	289	# Outgoing masquerading (don't masqerade IPSEC (mark 50))
	290	/sbin/iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
	291	/sbin/iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
c400fe4c	292
6be0579b	293	fi
ff4770c7 AM	294	}
	295
	296	# See how we were called.
	297	case "$1" in
	298	start)
	299	iptables_init
6be0579b	300	;;
3a1019f6 MT	301	reload)
3a1019f6 MT	302	iptables_red
3a1019f6	303	# run local firewall configuration, if present
ff4770c7	304	if [ -x /etc/sysconfig/firewall.local ]; then
3a1019f6 MT	305	/etc/sysconfig/firewall.local reload
	306	fi
	307	;;
	308	restart)
ff4770c7 AM	309	# run local firewall configuration, if present
	310	if [ -x /etc/sysconfig/firewall.local ]; then
	311	/etc/sysconfig/firewall.local stop
	312	fi
3a1019f6 MT	313	$0 start
	314	;;
	315	*)
ff4770c7	316	echo "Usage: $0 {start\|reload\|restart}"
3a1019f6 MT	317	exit 1
	318	;;
	319	esac
	320
	321	exit 0