firewall4/tests/02_zones/07_helpers

Testing zone helper assignments

-- Testcase --
{%
	include("./root/usr/share/firewall4/main.uc", {
		getenv: function(varname) {
			switch (varname) {
			case 'ACTION':
				return 'print';
			}
		}
	})
%}
-- End --

-- File fs/open~_sys_class_net_zone1_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_zone2_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_zone3_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_zone4_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_zone5_flags.txt --
0x1103
-- End --

-- File uci/firewall.json --
{
	"zone": [
		{
			".description": "Setting masq to true for a zone with a helper should emit a helper chain for the zone with the configured helper",
			"name": "test1",
			"device": "zone1",
			"masq": "1",
			"helper": [ "tftp" ]
		},
		{
			".description": "Setting masq6 to true for a zone with a helper should emit a helper chain for the zone with the configured helper",
			"name": "test2",
			"device": "zone2",
			"masq6": "1",
			"helper": [ "tftp" ]
		},
		{
			".description": "Disabling both masq and masq6 for a zone with a helper should emit a helper chain for the zone with the configured helper",
			"name": "test3",
			"device": "zone3",
			"masq": "0",
			"masq6": "0",
			"helper": [ "tftp" ]
		},
		{
			".description": "Disabling both masq and masq6 for a zone with a helper should configure default helper assignment",
			"name": "test4",
			"device": "zone4",
			"masq": "0",
			"masq6": "0",
		},
		{
			".description": "Specifying an invalid helper should write a warning to stderr",
			"name": "test5",
			"device": "zone5",
			"masq": "0",
			"masq6": "0",
			"helper": [ "foo" ]
		}
	]
}
-- End --

-- Expect stdout --
table inet fw4
flush table inet fw4

table inet fw4 {
	#
	# CT helper definitions
	#

	ct helper amanda {
		type "amanda" protocol udp;
	}

	ct helper ftp {
		type "ftp" protocol tcp;
	}

	ct helper RAS {
		type "RAS" protocol udp;
	}

	ct helper Q.931 {
		type "Q.931" protocol tcp;
	}

	ct helper irc {
		type "irc" protocol tcp;
	}

	ct helper netbios-ns {
		type "netbios-ns" protocol udp;
	}

	ct helper pptp {
		type "pptp" protocol tcp;
	}

	ct helper sane {
		type "sane" protocol tcp;
	}

	ct helper sip {
		type "sip" protocol udp;
	}

	ct helper snmp {
		type "snmp" protocol udp;
	}

	ct helper tftp {
		type "tftp" protocol udp;
	}

	ct helper rtsp {
		type "rtsp" protocol tcp;
	}


	#
	# Defines
	#

	define test1_devices = { "zone1" }
	define test1_subnets = {  }

	define test2_devices = { "zone2" }
	define test2_subnets = {  }

	define test3_devices = { "zone3" }
	define test3_subnets = {  }

	define test4_devices = { "zone4" }
	define test4_subnets = {  }


	#
	# User includes
	#

	include "/etc/nftables.d/*.nft"


	#
	# Filter rules
	#

	chain input {
		type filter hook input priority filter; policy drop;

		iifname "lo" accept comment "!fw4: Accept traffic from loopback"

		ct state established,related accept comment "!fw4: Allow inbound established and related flows"
		iifname "zone1" jump input_test1 comment "!fw4: Handle test1 IPv4/IPv6 input traffic"
		iifname "zone2" jump input_test2 comment "!fw4: Handle test2 IPv4/IPv6 input traffic"
		iifname "zone3" jump input_test3 comment "!fw4: Handle test3 IPv4/IPv6 input traffic"
		iifname "zone4" jump input_test4 comment "!fw4: Handle test4 IPv4/IPv6 input traffic"
	}

	chain forward {
		type filter hook forward priority filter; policy drop;

		ct state established,related accept comment "!fw4: Allow forwarded established and related flows"
		iifname "zone1" jump forward_test1 comment "!fw4: Handle test1 IPv4/IPv6 forward traffic"
		iifname "zone2" jump forward_test2 comment "!fw4: Handle test2 IPv4/IPv6 forward traffic"
		iifname "zone3" jump forward_test3 comment "!fw4: Handle test3 IPv4/IPv6 forward traffic"
		iifname "zone4" jump forward_test4 comment "!fw4: Handle test4 IPv4/IPv6 forward traffic"
	}

	chain output {
		type filter hook output priority filter; policy drop;

		oifname "lo" accept comment "!fw4: Accept traffic towards loopback"

		ct state established,related accept comment "!fw4: Allow outbound established and related flows"
		oifname "zone1" jump output_test1 comment "!fw4: Handle test1 IPv4/IPv6 output traffic"
		oifname "zone2" jump output_test2 comment "!fw4: Handle test2 IPv4/IPv6 output traffic"
		oifname "zone3" jump output_test3 comment "!fw4: Handle test3 IPv4/IPv6 output traffic"
		oifname "zone4" jump output_test4 comment "!fw4: Handle test4 IPv4/IPv6 output traffic"
	}

	chain prerouting {
		type filter hook prerouting priority filter; policy accept;
		iifname "zone1" jump helper_test1 comment "!fw4: Handle test1 IPv4/IPv6 helper assignment"
		iifname "zone2" jump helper_test2 comment "!fw4: Handle test2 IPv4/IPv6 helper assignment"
		iifname "zone3" jump helper_test3 comment "!fw4: Handle test3 IPv4/IPv6 helper assignment"
		iifname "zone4" jump helper_test4 comment "!fw4: Handle test4 IPv4/IPv6 helper assignment"
	}

	chain handle_reject {
		meta l4proto tcp reject with tcp reset comment "!fw4: Reject TCP traffic"
		reject with icmpx type port-unreachable comment "!fw4: Reject any other traffic"
	}

	chain input_test1 {
		jump drop_from_test1
	}

	chain output_test1 {
		jump drop_to_test1
	}

	chain forward_test1 {
		jump drop_to_test1
	}

	chain helper_test1 {
		meta l4proto udp udp dport 69 ct helper set "tftp" comment "!fw4: TFTP connection tracking"
	}

	chain drop_from_test1 {
		iifname "zone1" counter drop comment "!fw4: drop test1 IPv4/IPv6 traffic"
	}

	chain drop_to_test1 {
		oifname "zone1" counter drop comment "!fw4: drop test1 IPv4/IPv6 traffic"
	}

	chain input_test2 {
		jump drop_from_test2
	}

	chain output_test2 {
		jump drop_to_test2
	}

	chain forward_test2 {
		jump drop_to_test2
	}

	chain helper_test2 {
		meta l4proto udp udp dport 69 ct helper set "tftp" comment "!fw4: TFTP connection tracking"
	}

	chain drop_from_test2 {
		iifname "zone2" counter drop comment "!fw4: drop test2 IPv4/IPv6 traffic"
	}

	chain drop_to_test2 {
		oifname "zone2" counter drop comment "!fw4: drop test2 IPv4/IPv6 traffic"
	}

	chain input_test3 {
		jump drop_from_test3
	}

	chain output_test3 {
		jump drop_to_test3
	}

	chain forward_test3 {
		jump drop_to_test3
	}

	chain helper_test3 {
		meta l4proto udp udp dport 69 ct helper set "tftp" comment "!fw4: TFTP connection tracking"
	}

	chain drop_from_test3 {
		iifname "zone3" counter drop comment "!fw4: drop test3 IPv4/IPv6 traffic"
	}

	chain drop_to_test3 {
		oifname "zone3" counter drop comment "!fw4: drop test3 IPv4/IPv6 traffic"
	}

	chain input_test4 {
		jump drop_from_test4
	}

	chain output_test4 {
		jump drop_to_test4
	}

	chain forward_test4 {
		jump drop_to_test4
	}

	chain helper_test4 {
		meta l4proto udp udp dport 10080 ct helper set "amanda" comment "!fw4: Amanda backup and archiving proto"
		meta l4proto tcp tcp dport 21 ct helper set "ftp" comment "!fw4: FTP passive connection tracking"
		meta l4proto udp udp dport 1719 ct helper set "RAS" comment "!fw4: RAS proto tracking"
		meta l4proto tcp tcp dport 1720 ct helper set "Q.931" comment "!fw4: Q.931 proto tracking"
		meta nfproto ipv4 meta l4proto tcp tcp dport 6667 ct helper set "irc" comment "!fw4: IRC DCC connection tracking"
		meta nfproto ipv4 meta l4proto udp udp dport 137 ct helper set "netbios-ns" comment "!fw4: NetBIOS name service broadcast tracking"
		meta nfproto ipv4 meta l4proto tcp tcp dport 1723 ct helper set "pptp" comment "!fw4: PPTP VPN connection tracking"
		meta l4proto tcp tcp dport 6566 ct helper set "sane" comment "!fw4: SANE scanner connection tracking"
		meta l4proto udp udp dport 5060 ct helper set "sip" comment "!fw4: SIP VoIP connection tracking"
		meta nfproto ipv4 meta l4proto udp udp dport 161 ct helper set "snmp" comment "!fw4: SNMP monitoring connection tracking"
		meta l4proto udp udp dport 69 ct helper set "tftp" comment "!fw4: TFTP connection tracking"
		meta nfproto ipv4 meta l4proto tcp tcp dport 554 ct helper set "rtsp" comment "!fw4: RTSP connection tracking"
	}

	chain drop_from_test4 {
		iifname "zone4" counter drop comment "!fw4: drop test4 IPv4/IPv6 traffic"
	}

	chain drop_to_test4 {
		oifname "zone4" counter drop comment "!fw4: drop test4 IPv4/IPv6 traffic"
	}


	#
	# NAT rules
	#

	chain dstnat {
		type nat hook prerouting priority dstnat; policy accept;
	}

	chain srcnat {
		type nat hook postrouting priority srcnat; policy accept;
		oifname "zone1" jump srcnat_test1 comment "!fw4: Handle test1 IPv4/IPv6 srcnat traffic"
		oifname "zone2" jump srcnat_test2 comment "!fw4: Handle test2 IPv4/IPv6 srcnat traffic"
	}

	chain srcnat_test1 {
		meta nfproto ipv4 masquerade comment "!fw4: Masquerade IPv4 test1 traffic"
	}

	chain srcnat_test2 {
		meta nfproto ipv6 masquerade comment "!fw4: Masquerade IPv6 test2 traffic"
	}


	#
	# Raw rules (notrack)
	#

	chain raw_prerouting {
		type filter hook prerouting priority raw; policy accept;
	}

	chain raw_output {
		type filter hook output priority raw; policy accept;
	}


	#
	# Mangle rules
	#

	chain mangle_prerouting {
		type filter hook prerouting priority mangle; policy accept;
	}

	chain mangle_postrouting {
		type filter hook postrouting priority mangle; policy accept;
	}

	chain mangle_input {
		type filter hook input priority mangle; policy accept;
	}

	chain mangle_output {
		type route hook output priority mangle; policy accept;
	}

	chain mangle_forward {
		type filter hook forward priority mangle; policy accept;
	}
}
-- End --

-- Expect stderr --
[!] Section @zone[4] (test5) option 'helper' specifies invalid value 'foo'
[!] Section @zone[4] (test5) skipped due to invalid options
-- End --