[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

function iptables() {
	/sbin/iptables --wait "$@"
}

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

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

	# Empty LOG_DROP and LOG_REJECT chains
	iptables -N LOG_DROP
	iptables -A LOG_DROP   -m limit --limit 10/minute -j LOG
	iptables -A LOG_DROP   -j DROP
	iptables -N LOG_REJECT
	iptables -A LOG_REJECT -m limit --limit 10/minute -j LOG
	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)
	iptables -N PSCAN
	if [ "$DROPPORTSCAN" == "on" ]; then
		iptables -A PSCAN -p tcp  -m limit --limit 10/minute -j LOG --log-prefix "DROP_TCP Scan " -m comment --comment "DROP_TCP PScan"
		iptables -A PSCAN -p udp  -m limit --limit 10/minute -j LOG --log-prefix "DROP_UDP Scan " -m comment --comment "DROP_UDP PScan"
		iptables -A PSCAN -p icmp -m limit --limit 10/minute -j LOG --log-prefix "DROP_ICMP Scan " -m comment --comment "DROP_ICMP PScan"
		iptables -A PSCAN -f      -m limit --limit 10/minute -j LOG --log-prefix "DROP_FRAG Scan " -m comment --comment "DROP_FRAG PScan"
	fi
	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
	iptables -N NEWNOTSYN
	if [ "$DROPNEWNOTSYN" == "on" ]; then
		iptables -A NEWNOTSYN  -m limit --limit 10/minute -j LOG  --log-prefix "DROP_NEWNOTSYN "
	fi
	iptables -A NEWNOTSYN  -j DROP -m comment --comment "DROP_NEWNOTSYN"

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

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

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

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

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

	# Fix for braindead ISP's
	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
	iptables -N CUSTOMINPUT
	iptables -A INPUT -j CUSTOMINPUT
	iptables -N CUSTOMFORWARD
	iptables -A FORWARD -j CUSTOMFORWARD
	iptables -N CUSTOMOUTPUT
	iptables -A OUTPUT -j CUSTOMOUTPUT
	iptables -t nat -N CUSTOMPREROUTING
	iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	iptables -t nat -N CUSTOMPOSTROUTING
	iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING

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

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

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

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

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

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

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

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

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

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

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

	# OpenVPN
	iptables -N OVPNINPUT
	iptables -A INPUT -j OVPNINPUT

	# TOR
	iptables -N TOR_INPUT
	iptables -A INPUT -j TOR_INPUT
	
	# Jump into the actual firewall ruleset.
	iptables -N INPUTFW
	iptables -A INPUT -j INPUTFW

	iptables -N OUTGOINGFW
	iptables -A OUTPUT -j OUTGOINGFW

	iptables -N FORWARDFW
	iptables -A FORWARD -j FORWARDFW

	# SNAT rules
	iptables -t nat -N NAT_SOURCE
	iptables -t nat -A POSTROUTING -j NAT_SOURCE

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

	iptables_red

	# Custom prerouting chains (for transparent proxy)
	iptables -t nat -N SQUID
	iptables -t nat -A PREROUTING -j SQUID

	# DNAT rules
	iptables -t nat -N NAT_DESTINATION
	iptables -t nat -A PREROUTING -j NAT_DESTINATION

	# upnp chain for our upnp daemon
	iptables -t nat -N UPNPFW
	iptables -t nat -A PREROUTING -j UPNPFW
	iptables -N UPNPFW
	iptables -A FORWARD -m conntrack --ctstate NEW -j UPNPFW

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

	# Apply OpenVPN firewall rules
	/usr/local/bin/openvpnctrl --firewall-rules

	# run wirelessctrl
	/usr/local/bin/wirelessctrl

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

	/usr/sbin/firewall-policy

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

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

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

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

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

	# Orange pinholes
	if [ "$ORANGE_DEV" != "" ]; then
		# This rule enables a host on ORANGE network to connect to the outside
		# (only if we have a red connection)
		if [ "$IFACE" != "" ]; then
			iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
		fi
	fi

	if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
		# DHCP
		if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; then
			iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
			iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
		fi
		if [ "$METHOD" == "DHCP"  -a "$PROTOCOL" == "RFC1483" ]; then
			iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
			iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
		fi

		# Outgoing masquerading (don't masqerade IPSEC (mark 50))
		iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
		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 $(/usr/local/bin/readhash /var/ipfire/optionsfw/settings)
3a1019f6 MT	6	IFACE=`/bin/cat /var/ipfire/red/iface 2> /dev/null \| /usr/bin/tr -d '\012'`
	7
	8	if [ -f /var/ipfire/red/device ]; then
	9	DEVICE=`/bin/cat /var/ipfire/red/device 2> /dev/null \| /usr/bin/tr -d '\012'`
	10	fi
	11
c581b670 MT	12	function iptables() {
	13	/sbin/iptables --wait "$@"
	14	}
	15
3a1019f6 MT	16	iptables_init() {
3a1019f6 MT	17	# Flush all rules and delete all custom chains
c581b670 MT	18	iptables -F
	19	iptables -t nat -F
	20	iptables -t mangle -F
	21	iptables -X
	22	iptables -t nat -X
	23	iptables -t mangle -X
3a1019f6 MT	24
3a1019f6 MT	25	# Set up policies
c581b670 MT	26	iptables -P INPUT DROP
	27	iptables -P FORWARD DROP
	28	iptables -P OUTPUT ACCEPT
3a1019f6 MT	29
3a1019f6 MT	30	# Empty LOG_DROP and LOG_REJECT chains
c581b670 MT	31	iptables -N LOG_DROP
	32	iptables -A LOG_DROP -m limit --limit 10/minute -j LOG
	33	iptables -A LOG_DROP -j DROP
	34	iptables -N LOG_REJECT
	35	iptables -A LOG_REJECT -m limit --limit 10/minute -j LOG
	36	iptables -A LOG_REJECT -j REJECT
3a1019f6 MT	37
	38	# This chain will log, then DROPs packets with certain bad combinations
	39	# of flags might indicate a port-scan attempt (xmas, null, etc)
c581b670	40	iptables -N PSCAN
5595bc03	41	if [ "$DROPPORTSCAN" == "on" ]; then
c581b670 MT	42	iptables -A PSCAN -p tcp -m limit --limit 10/minute -j LOG --log-prefix "DROP_TCP Scan " -m comment --comment "DROP_TCP PScan"
	43	iptables -A PSCAN -p udp -m limit --limit 10/minute -j LOG --log-prefix "DROP_UDP Scan " -m comment --comment "DROP_UDP PScan"
	44	iptables -A PSCAN -p icmp -m limit --limit 10/minute -j LOG --log-prefix "DROP_ICMP Scan " -m comment --comment "DROP_ICMP PScan"
	45	iptables -A PSCAN -f -m limit --limit 10/minute -j LOG --log-prefix "DROP_FRAG Scan " -m comment --comment "DROP_FRAG PScan"
5595bc03	46	fi
c581b670	47	iptables -A PSCAN -j DROP -m comment --comment "DROP_PScan"
3a1019f6 MT	48
	49	# New tcp packets without SYN set - could well be an obscure type of port scan
	50	# that's not covered above, may just be a broken windows machine
c581b670	51	iptables -N NEWNOTSYN
5595bc03	52	if [ "$DROPNEWNOTSYN" == "on" ]; then
c581b670	53	iptables -A NEWNOTSYN -m limit --limit 10/minute -j LOG --log-prefix "DROP_NEWNOTSYN "
5595bc03	54	fi
c581b670	55	iptables -A NEWNOTSYN -j DROP -m comment --comment "DROP_NEWNOTSYN"
3a1019f6 MT	56
3a1019f6 MT	57	# Chain to contain all the rules relating to bad TCP flags
c581b670	58	iptables -N BADTCP
3a1019f6	59
c581b670 MT	60	# Don't check loopback
c581b670 MT	61	iptables -A BADTCP -i lo -j RETURN
d8158ca6	62
3a1019f6 MT	63	# Disallow packets frequently used by port-scanners
3a1019f6 MT	64	# nmap xmas
c581b670	65	iptables -A BADTCP -p tcp --tcp-flags ALL FIN,URG,PSH -j PSCAN
3a1019f6	66	# Null
c581b670	67	iptables -A BADTCP -p tcp --tcp-flags ALL NONE -j PSCAN
3a1019f6	68	# FIN
c581b670	69	iptables -A BADTCP -p tcp --tcp-flags ALL FIN -j PSCAN
3a1019f6	70	# SYN/RST (also catches xmas variants that set SYN+RST+...)
c581b670	71	iptables -A BADTCP -p tcp --tcp-flags SYN,RST SYN,RST -j PSCAN
3a1019f6	72	# SYN/FIN (QueSO or nmap OS probe)
c581b670	73	iptables -A BADTCP -p tcp --tcp-flags SYN,FIN SYN,FIN -j PSCAN
3a1019f6	74	# NEW TCP without SYN
c581b670	75	iptables -A BADTCP -p tcp ! --syn -m conntrack --ctstate NEW -j NEWNOTSYN
b85d2a98	76
c581b670 MT	77	iptables -A INPUT -p tcp -j BADTCP
c581b670 MT	78	iptables -A FORWARD -p tcp -j BADTCP
c0359d6d	79
b85d2a98	80	# Connection tracking chain
c581b670 MT	81	iptables -N CONNTRACK
c581b670 MT	82	iptables -A CONNTRACK -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
3a1019f6	83
3a1019f6	84	# Fix for braindead ISP's
c581b670	85	iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
3a1019f6 MT	86
3a1019f6 MT	87	# CUSTOM chains, can be used by the users themselves
c581b670 MT	88	iptables -N CUSTOMINPUT
	89	iptables -A INPUT -j CUSTOMINPUT
	90	iptables -N CUSTOMFORWARD
	91	iptables -A FORWARD -j CUSTOMFORWARD
	92	iptables -N CUSTOMOUTPUT
	93	iptables -A OUTPUT -j CUSTOMOUTPUT
	94	iptables -t nat -N CUSTOMPREROUTING
	95	iptables -t nat -A PREROUTING -j CUSTOMPREROUTING
	96	iptables -t nat -N CUSTOMPOSTROUTING
	97	iptables -t nat -A POSTROUTING -j CUSTOMPOSTROUTING
3a1019f6	98
815eaff4	99	# Guardian (IPS) chains
c581b670 MT	100	iptables -N GUARDIAN
	101	iptables -A INPUT -j GUARDIAN
	102	iptables -A FORWARD -j GUARDIAN
815eaff4	103
1e555330	104	# Block OpenVPN transfer networks
c581b670	105	iptables -N OVPNBLOCK
c0f99754	106	for i in INPUT FORWARD; do
c581b670	107	iptables -A ${i} -j OVPNBLOCK
1e555330 MT	108	done
1e555330 MT	109
51ab1de1	110	# OpenVPN transfer network translation
c581b670 MT	111	iptables -t nat -N OVPNNAT
c581b670 MT	112	iptables -t nat -A POSTROUTING -j OVPNNAT
51ab1de1	113
daa1ceba	114	# IPTV chains for IGMPPROXY
c581b670 MT	115	iptables -N IPTVINPUT
	116	iptables -A INPUT -j IPTVINPUT
	117	iptables -N IPTVFORWARD
	118	iptables -A FORWARD -j IPTVFORWARD
daa1ceba	119
3a1019f6	120	# filtering from GUI
c581b670 MT	121	iptables -N GUIINPUT
	122	iptables -A INPUT -j GUIINPUT
	123	iptables -A GUIINPUT -p icmp --icmp-type 8 -j ACCEPT
3a1019f6	124
afc611d4	125	# Accept everything on loopback
c581b670 MT	126	iptables -N LOOPBACK
	127	iptables -A LOOPBACK -i lo -j ACCEPT
	128	iptables -A LOOPBACK -o lo -j ACCEPT
afc611d4	129
3b9a23ce	130	# Filter all packets with loopback addresses on non-loopback interfaces.
c581b670 MT	131	iptables -A LOOPBACK -s 127.0.0.0/8 -j DROP
c581b670 MT	132	iptables -A LOOPBACK -d 127.0.0.0/8 -j DROP
3b9a23ce MT	133
3b9a23ce MT	134	for i in INPUT FORWARD OUTPUT; do
c581b670	135	iptables -A ${i} -j LOOPBACK
3b9a23ce	136	done
afc611d4	137
3a1019f6	138	# Accept everything connected
b85d2a98	139	for i in INPUT FORWARD OUTPUT; do
c581b670	140	iptables -A ${i} -j CONNTRACK
b85d2a98 MT	141	done
b85d2a98 MT	142
5fd30232	143	# trafic from ipsecX/TUN/TAP interfaces, before "-i GREEN_DEV" accept everything
c581b670 MT	144	iptables -N IPSECINPUT
	145	iptables -N IPSECFORWARD
	146	iptables -N IPSECOUTPUT
	147	iptables -A INPUT -j IPSECINPUT
	148	iptables -A FORWARD -j IPSECFORWARD
	149	iptables -A OUTPUT -j IPSECOUTPUT
	150	iptables -t nat -N IPSECNAT
	151	iptables -t nat -A POSTROUTING -j IPSECNAT
b68e5c14	152
3a1019f6	153	# localhost and ethernet.
c581b670	154	iptables -A INPUT -i $GREEN_DEV -m conntrack --ctstate NEW -j ACCEPT ! -p icmp
218b3341	155
3a1019f6	156	# allow DHCP on BLUE to be turned on/off
c581b670 MT	157	iptables -N DHCPBLUEINPUT
c581b670 MT	158	iptables -A INPUT -j DHCPBLUEINPUT
81393987 AM	159
81393987 AM	160	# WIRELESS chains
c581b670 MT	161	iptables -N WIRELESSINPUT
	162	iptables -A INPUT -m conntrack --ctstate NEW -j WIRELESSINPUT
	163	iptables -N WIRELESSFORWARD
	164	iptables -A FORWARD -m conntrack --ctstate NEW -j WIRELESSFORWARD
987b75bc	165
ab4876ad	166	# OpenVPN
c581b670 MT	167	iptables -N OVPNINPUT
c581b670 MT	168	iptables -A INPUT -j OVPNINPUT
ab4876ad	169
987b75bc	170	# TOR
c581b670 MT	171	iptables -N TOR_INPUT
c581b670 MT	172	iptables -A INPUT -j TOR_INPUT
12dcfbbd	173
d5f1422d	174	# Jump into the actual firewall ruleset.
c581b670 MT	175	iptables -N INPUTFW
c581b670 MT	176	iptables -A INPUT -j INPUTFW
d5f1422d	177
c581b670 MT	178	iptables -N OUTGOINGFW
c581b670 MT	179	iptables -A OUTPUT -j OUTGOINGFW
d5f1422d	180
c581b670 MT	181	iptables -N FORWARDFW
c581b670 MT	182	iptables -A FORWARD -j FORWARDFW
d5f1422d	183
fac38614	184	# SNAT rules
c581b670 MT	185	iptables -t nat -N NAT_SOURCE
c581b670 MT	186	iptables -t nat -A POSTROUTING -j NAT_SOURCE
fac38614	187
3a1019f6	188	# RED chain, used for the red interface
c581b670 MT	189	iptables -N REDINPUT
	190	iptables -A INPUT -j REDINPUT
	191	iptables -N REDFORWARD
	192	iptables -A FORWARD -j REDFORWARD
	193	iptables -t nat -N REDNAT
	194	iptables -t nat -A POSTROUTING -j REDNAT
3a1019f6 MT	195
3a1019f6 MT	196	iptables_red
bb12dd7b MT	197
bb12dd7b MT	198	# Custom prerouting chains (for transparent proxy)
c581b670 MT	199	iptables -t nat -N SQUID
c581b670 MT	200	iptables -t nat -A PREROUTING -j SQUID
bb12dd7b MT	201
bb12dd7b MT	202	# DNAT rules
c581b670 MT	203	iptables -t nat -N NAT_DESTINATION
c581b670 MT	204	iptables -t nat -A PREROUTING -j NAT_DESTINATION
bb12dd7b	205
7e7495b3	206	# upnp chain for our upnp daemon
c581b670 MT	207	iptables -t nat -N UPNPFW
	208	iptables -t nat -A PREROUTING -j UPNPFW
	209	iptables -N UPNPFW
	210	iptables -A FORWARD -m conntrack --ctstate NEW -j UPNPFW
3a1019f6	211
3a1019f6 MT	212	# run local firewall configuration, if present
	213	if [ -x /etc/sysconfig/firewall.local ]; then
	214	/etc/sysconfig/firewall.local start
	215	fi
690b0bd7	216
ab4876ad MT	217	# Apply OpenVPN firewall rules
ab4876ad MT	218	/usr/local/bin/openvpnctrl --firewall-rules
ff4770c7 AM	219
	220	# run wirelessctrl
	221	/usr/local/bin/wirelessctrl
	222
c581b670 MT	223	# POLICY CHAIN
	224	iptables -N POLICYIN
	225	iptables -A INPUT -j POLICYIN
	226	iptables -N POLICYFWD
	227	iptables -A FORWARD -j POLICYFWD
	228	iptables -N POLICYOUT
	229	iptables -A OUTPUT -j POLICYOUT
b324de14	230
5d7faa45	231	/usr/sbin/firewall-policy
690b0bd7	232
ff4770c7	233	# read new firewall
8039a710	234	/usr/local/bin/firewallctrl
ff4770c7	235
690b0bd7	236	if [ "$DROPINPUT" == "on" ]; then
c581b670	237	iptables -A INPUT -m limit --limit 10/minute -j LOG --log-prefix "DROP_INPUT"
690b0bd7	238	fi
c581b670	239	iptables -A INPUT -j DROP -m comment --comment "DROP_INPUT"
690b0bd7	240	if [ "$DROPFORWARD" == "on" ]; then
c581b670	241	iptables -A FORWARD -m limit --limit 10/minute -j LOG --log-prefix "DROP_FORWARD"
690b0bd7	242	fi
c581b670	243	iptables -A FORWARD -j DROP -m comment --comment "DROP_FORWARD"
ff4770c7	244	}
3a1019f6	245
ff4770c7	246	iptables_red() {
c581b670 MT	247	iptables -F REDINPUT
	248	iptables -F REDFORWARD
	249	iptables -t nat -F REDNAT
3a1019f6	250
ff4770c7 AM	251	# PPPoE / PPTP Device
	252	if [ "$IFACE" != "" ]; then
	253	# PPPoE / PPTP
	254	if [ "$DEVICE" != "" ]; then
c581b670	255	iptables -A REDINPUT -i $DEVICE -j ACCEPT
ff4770c7 AM	256	fi
	257	if [ "$RED_TYPE" == "PPTP" -o "$RED_TYPE" == "PPPOE" ]; then
	258	if [ "$RED_DEV" != "" ]; then
c581b670	259	iptables -A REDINPUT -i $RED_DEV -j ACCEPT
ff4770c7 AM	260	fi
ff4770c7 AM	261	fi
3a1019f6	262	fi
ff4770c7 AM	263
	264	# PPTP over DHCP
	265	if [ "$DEVICE" != "" -a "$TYPE" == "PPTP" -a "$METHOD" == "DHCP" ]; then
c581b670 MT	266	iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
c581b670 MT	267	iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $DEVICE -j ACCEPT
3a1019f6 MT	268	fi
3a1019f6 MT	269
ff4770c7 AM	270	# Orange pinholes
	271	if [ "$ORANGE_DEV" != "" ]; then
	272	# This rule enables a host on ORANGE network to connect to the outside
	273	# (only if we have a red connection)
	274	if [ "$IFACE" != "" ]; then
c581b670	275	iptables -A REDFORWARD -i $ORANGE_DEV -o $IFACE -j ACCEPT
ff4770c7	276	fi
3a1019f6	277	fi
c400fe4c	278
ff4770c7 AM	279	if [ "$IFACE" != "" -a -f /var/ipfire/red/active ]; then
	280	# DHCP
	281	if [ "$RED_DEV" != "" -a "$RED_TYPE" == "DHCP" ]; then
c581b670 MT	282	iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
c581b670 MT	283	iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
ff4770c7 AM	284	fi
ff4770c7 AM	285	if [ "$METHOD" == "DHCP" -a "$PROTOCOL" == "RFC1483" ]; then
c581b670 MT	286	iptables -A REDINPUT -p tcp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
c581b670 MT	287	iptables -A REDINPUT -p udp --source-port 67 --destination-port 68 -i $IFACE -j ACCEPT
ff4770c7 AM	288	fi
	289
	290	# Outgoing masquerading (don't masqerade IPSEC (mark 50))
c581b670 MT	291	iptables -t nat -A REDNAT -m mark --mark 50 -o $IFACE -j RETURN
c581b670 MT	292	iptables -t nat -A REDNAT -o $IFACE -j MASQUERADE
c400fe4c	293
6be0579b	294	fi
ff4770c7 AM	295	}
	296
	297	# See how we were called.
	298	case "$1" in
	299	start)
	300	iptables_init
6be0579b	301	;;
3a1019f6 MT	302	reload)
3a1019f6 MT	303	iptables_red
3a1019f6	304	# run local firewall configuration, if present
ff4770c7	305	if [ -x /etc/sysconfig/firewall.local ]; then
3a1019f6 MT	306	/etc/sysconfig/firewall.local reload
	307	fi
	308	;;
	309	restart)
ff4770c7 AM	310	# run local firewall configuration, if present
	311	if [ -x /etc/sysconfig/firewall.local ]; then
	312	/etc/sysconfig/firewall.local stop
	313	fi
3a1019f6 MT	314	$0 start
	315	;;
	316	*)
ff4770c7	317	echo "Usage: $0 {start\|reload\|restart}"
3a1019f6 MT	318	exit 1
	319	;;
	320	esac
	321
	322	exit 0