[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 state --state NEW -j NEWNOTSYN

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

	# 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 -m state --state ESTABLISHED,RELATED -j ACCEPT
	/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 connected
	/sbin/iptables -A INPUT   -m state --state ESTABLISHED,RELATED -j ACCEPT
	/sbin/iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
	
	# Accept everything on lo
	iptables -A INPUT  -i lo -m state --state NEW -j ACCEPT
	iptables -A OUTPUT -o lo -m state --state NEW -j ACCEPT
	
	# 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 state --state NEW -j INPUTFW

	# localhost and ethernet.
	/sbin/iptables -A INPUT   -i lo -m state --state NEW -j ACCEPT
	/sbin/iptables -A INPUT   -s 127.0.0.0/8 -m state --state NEW -j DROP   # Loopback not on lo
	/sbin/iptables -A INPUT   -d 127.0.0.0/8 -m state --state NEW -j DROP
	/sbin/iptables -A FORWARD -i lo -m state --state NEW -j ACCEPT
	/sbin/iptables -A FORWARD -s 127.0.0.0/8 -m state --state NEW -j DROP
	/sbin/iptables -A FORWARD -d 127.0.0.0/8 -m state --state NEW -j DROP
	/sbin/iptables -A INPUT   -i $GREEN_DEV  -m state --state 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 state --state NEW -j WIRELESSINPUT
	/sbin/iptables -N WIRELESSFORWARD
	/sbin/iptables -A FORWARD -m state --state NEW -j WIRELESSFORWARD
	
	# Forward Firewall
	/sbin/iptables -N FORWARDFW
	/sbin/iptables -A FORWARD -j FORWARDFW
		
	# PORTFWACCESS chain, used for portforwarding
	/sbin/iptables -N PORTFWACCESS
	/sbin/iptables -A FORWARD -m state --state NEW -j PORTFWACCESS
	
	# 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 state --state 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
	71	/sbin/iptables -A BADTCP -p tcp ! --syn -m state --state NEW -j NEWNOTSYN
	72
	73	/sbin/iptables -A INPUT -j BADTCP
	74	/sbin/iptables -A FORWARD -j BADTCP
	75
3a1019f6 MT	76	# Fix for braindead ISP's
	77	/sbin/iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
	78
	79	# CUSTOM chains, can be used by the users themselves
	80	/sbin/iptables -N CUSTOMINPUT
	81	/sbin/iptables -A INPUT -j CUSTOMINPUT
057249ba CS	82	/sbin/iptables -N GUARDIAN
057249ba CS	83	/sbin/iptables -A INPUT -j GUARDIAN
690b0bd7 AM	84	/sbin/iptables -N OVPNBLOCK
690b0bd7 AM	85	/sbin/iptables -A FORWARD -j OVPNBLOCK
057249ba	86	/sbin/iptables -A FORWARD -j GUARDIAN
3a1019f6 MT	87	/sbin/iptables -N CUSTOMFORWARD
	88	/sbin/iptables -A FORWARD -j CUSTOMFORWARD
	89	/sbin/iptables -N CUSTOMOUTPUT
690b0bd7	90	/sbin/iptables -A OUTPUT -j OVPNBLOCK
ef6f983b	91	/sbin/iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
3a1019f6	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
daa1ceba AF	102	# IPTV chains for IGMPPROXY
	103	/sbin/iptables -N IPTVINPUT
	104	/sbin/iptables -A INPUT -j IPTVINPUT
	105	/sbin/iptables -N IPTVFORWARD
	106	/sbin/iptables -A FORWARD -j IPTVFORWARD
	107
690b0bd7 AM	108	# Filtering ovpn networks INPUT
	109	/sbin/iptables -A INPUT -j OVPNBLOCK
	110
3a1019f6 MT	111	# filtering from GUI
	112	/sbin/iptables -N GUIINPUT
	113	/sbin/iptables -A INPUT -j GUIINPUT
905fbf3e	114	/sbin/iptables -A GUIINPUT -p icmp --icmp-type 8 -j ACCEPT
3a1019f6 MT	115
	116	# Accept everything connected
	117	/sbin/iptables -A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
	118	/sbin/iptables -A FORWARD -m state --state ESTABLISHED,RELATED -j ACCEPT
5fd30232	119
ef6f983b AM	120	# Accept everything on lo
	121	iptables -A INPUT -i lo -m state --state NEW -j ACCEPT
	122	iptables -A OUTPUT -o lo -m state --state NEW -j ACCEPT
	123
5fd30232	124	# trafic from ipsecX/TUN/TAP interfaces, before "-i GREEN_DEV" accept everything
6652626c AF	125	/sbin/iptables -N IPSECINPUT
	126	/sbin/iptables -N IPSECFORWARD
	127	/sbin/iptables -N IPSECOUTPUT
5fd30232	128	/sbin/iptables -N OPENSSLVIRTUAL
6652626c	129	/sbin/iptables -A INPUT -j IPSECINPUT
5595bc03	130	/sbin/iptables -A INPUT -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL INPUT"
6652626c	131	/sbin/iptables -A FORWARD -j IPSECFORWARD
5595bc03	132	/sbin/iptables -A FORWARD -j OPENSSLVIRTUAL -m comment --comment "OPENSSLVIRTUAL FORWARD"
6652626c	133	/sbin/iptables -A OUTPUT -j IPSECOUTPUT
c4cd0f7b AF	134	/sbin/iptables -t nat -N IPSECNAT
c4cd0f7b AF	135	/sbin/iptables -t nat -A POSTROUTING -j IPSECNAT
b68e5c14	136
231499fc AM	137	# Input Firewall
	138	/sbin/iptables -N INPUTFW
	139	/sbin/iptables -A INPUT -m state --state NEW -j INPUTFW
	140
3a1019f6	141	# localhost and ethernet.
d8158ca6	142	/sbin/iptables -A INPUT -i lo -m state --state NEW -j ACCEPT
3a1019f6 MT	143	/sbin/iptables -A INPUT -s 127.0.0.0/8 -m state --state NEW -j DROP # Loopback not on lo
3a1019f6 MT	144	/sbin/iptables -A INPUT -d 127.0.0.0/8 -m state --state NEW -j DROP
cae0079c	145	/sbin/iptables -A FORWARD -i lo -m state --state NEW -j ACCEPT
3a1019f6 MT	146	/sbin/iptables -A FORWARD -s 127.0.0.0/8 -m state --state NEW -j DROP
3a1019f6 MT	147	/sbin/iptables -A FORWARD -d 127.0.0.0/8 -m state --state NEW -j DROP
dd79c399	148	/sbin/iptables -A INPUT -i $GREEN_DEV -m state --state NEW -j ACCEPT ! -p icmp
218b3341	149
3a1019f6 MT	150	# allow DHCP on BLUE to be turned on/off
	151	/sbin/iptables -N DHCPBLUEINPUT
	152	/sbin/iptables -A INPUT -j DHCPBLUEINPUT
81393987 AM	153
	154	# WIRELESS chains
	155	/sbin/iptables -N WIRELESSINPUT
	156	/sbin/iptables -A INPUT -m state --state NEW -j WIRELESSINPUT
	157	/sbin/iptables -N WIRELESSFORWARD
9efd8d1c	158	/sbin/iptables -A FORWARD -m state --state NEW -j WIRELESSFORWARD
12dcfbbd	159
93b75f31 AM	160	# Forward Firewall
	161	/sbin/iptables -N FORWARDFW
	162	/sbin/iptables -A FORWARD -j FORWARDFW
	163
12dcfbbd AM	164	# PORTFWACCESS chain, used for portforwarding
	165	/sbin/iptables -N PORTFWACCESS
	166	/sbin/iptables -A FORWARD -m state --state NEW -j PORTFWACCESS
	167
5fd30232 MT	168	# OPenSSL
	169	/sbin/iptables -N OPENSSLPHYSICAL
	170	/sbin/iptables -A INPUT -j OPENSSLPHYSICAL
3a1019f6	171
3a1019f6 MT	172	# RED chain, used for the red interface
	173	/sbin/iptables -N REDINPUT
	174	/sbin/iptables -A INPUT -j REDINPUT
	175	/sbin/iptables -N REDFORWARD
	176	/sbin/iptables -A FORWARD -j REDFORWARD
	177	/sbin/iptables -t nat -N REDNAT
	178	/sbin/iptables -t nat -A POSTROUTING -j REDNAT
	179
	180	iptables_red
218b3341	181
3a1019f6 MT	182	# Custom prerouting chains (for transparent proxy and port forwarding)
	183	/sbin/iptables -t nat -N SQUID
	184	/sbin/iptables -t nat -A PREROUTING -j SQUID
9efd8d1c AM	185	/sbin/iptables -t nat -N NAT_DESTINATION
	186	/sbin/iptables -t nat -N NAT_SOURCE
	187	/sbin/iptables -t nat -A PREROUTING -j NAT_DESTINATION
690b0bd7 AM	188	/sbin/iptables -t nat -I POSTROUTING 3 -j NAT_SOURCE
690b0bd7 AM	189
9efd8d1c AM	190
9efd8d1c AM	191
7e7495b3 MT	192	# upnp chain for our upnp daemon
	193	/sbin/iptables -t nat -N UPNPFW
	194	/sbin/iptables -t nat -A PREROUTING -j UPNPFW
54194ba4	195	/sbin/iptables -N UPNPFW
42cb3860	196	/sbin/iptables -A FORWARD -m state --state NEW -j UPNPFW
3a1019f6	197
3a1019f6	198	# Postrouting rules (for port forwarding)
690b0bd7	199	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 1 -j SNAT --to-source $GREEN_ADDRESS
3a1019f6 MT	200	if [ "$BLUE_DEV" != "" ]; then
	201	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 2 -j SNAT --to-source $BLUE_ADDRESS
	202	fi
	203	if [ "$ORANGE_DEV" != "" ]; then
	204	/sbin/iptables -t nat -A POSTROUTING -m mark --mark 3 -j SNAT --to-source $ORANGE_ADDRESS
	205	fi
	206
3a1019f6 MT	207	# run local firewall configuration, if present
	208	if [ -x /etc/sysconfig/firewall.local ]; then
	209	/etc/sysconfig/firewall.local start
	210	fi
690b0bd7	211
ff4770c7 AM	212	# run openvpn
	213	/usr/local/bin/openvpnctrl --create-chains-and-rules
	214
	215	# run wirelessctrl
	216	/usr/local/bin/wirelessctrl
	217
62fc8511	218	#POLICY CHAIN
a9b3ae26 AM	219	/sbin/iptables -N POLICYIN
a9b3ae26 AM	220	/sbin/iptables -A INPUT -j POLICYIN
5d7faa45 AM	221	/sbin/iptables -N POLICYFWD
	222	/sbin/iptables -A FORWARD -j POLICYFWD
	223	/sbin/iptables -N POLICYOUT
	224	/sbin/iptables -A OUTPUT -j POLICYOUT
b324de14	225
5d7faa45	226	/usr/sbin/firewall-policy
690b0bd7	227
ff4770c7 AM	228	# read new firewall
	229	/usr/local/bin/forwardfwctrl
	230
690b0bd7 AM	231	if [ "$DROPINPUT" == "on" ]; then
	232	/sbin/iptables -A INPUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
	233	fi
e41b651b	234	/sbin/iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
690b0bd7 AM	235	if [ "$DROPFORWARD" == "on" ]; then
	236	/sbin/iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
	237	fi
	238	/sbin/iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
ff4770c7	239	}
3a1019f6	240
ff4770c7 AM	241	iptables_red() {
	242	/sbin/iptables -F REDINPUT
	243	/sbin/iptables -F REDFORWARD
	244	/sbin/iptables -t nat -F REDNAT
3a1019f6	245
ff4770c7 AM	246	# PPPoE / PPTP Device
	247	if [ "$IFACE" != "" ]; then
	248	# PPPoE / PPTP
	249	if [ "$DEVICE" != "" ]; then
	250	/sbin/iptables -A REDINPUT -i $DEVICE -j ACCEPT
	251	fi
	252	if [ "$RED_TYPE" == "PPTP" -o "$RED_TYPE" == "PPPOE" ]; then
	253	if [ "$RED_DEV" != "" ]; then
	254	/sbin/iptables -A REDINPUT -i $RED_DEV -j ACCEPT
	255	fi
	256	fi
3a1019f6	257	fi
ff4770c7 AM	258
	259	# PPTP over DHCP
	260	if [ "$DEVICE" != "" -a "$TYPE" == "PPTP" -a "$METHOD" == "DHCP" ]; then
	261	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
	262	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
3a1019f6 MT	263	fi
3a1019f6 MT	264
ff4770c7 AM	265	# Orange pinholes
	266	if [ "$ORANGE_DEV" != "" ]; then
	267	# This rule enables a host on ORANGE network to connect to the outside
	268	# (only if we have a red connection)
	269	if [ "$IFACE" != "" ]; then
	270	/sbin/iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
	271	fi
3a1019f6	272	fi
c400fe4c	273
ff4770c7 AM	274	if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
	275	# DHCP
	276	if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; then
	277	/sbin/iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	278	/sbin/iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
	279	fi
	280	if [ "$METHOD" == "DHCP" -a "$PROTOCOL" == "RFC1483" ]; 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
	285	# Outgoing masquerading (don't masqerade IPSEC (mark 50))
	286	/sbin/iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
	287	/sbin/iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
c400fe4c	288
6be0579b	289	fi
ff4770c7 AM	290	}
	291
	292	# See how we were called.
	293	case "$1" in
	294	start)
	295	iptables_init
6be0579b	296	;;
3a1019f6 MT	297	reload)
3a1019f6 MT	298	iptables_red
3a1019f6	299	# run local firewall configuration, if present
ff4770c7	300	if [ -x /etc/sysconfig/firewall.local ]; then
3a1019f6 MT	301	/etc/sysconfig/firewall.local reload
	302	fi
	303	;;
	304	restart)
ff4770c7 AM	305	# run local firewall configuration, if present
	306	if [ -x /etc/sysconfig/firewall.local ]; then
	307	/etc/sysconfig/firewall.local stop
	308	fi
3a1019f6 MT	309	$0 start
	310	;;
	311	*)
ff4770c7	312	echo "Usage: $0 {start\|reload\|restart}"
3a1019f6 MT	313	exit 1
	314	;;
	315	esac
	316
	317	exit 0