firewall4/tests/03_rules/10_notrack

Ensure that NOTRACK rules end up in the appropriate chains, depending on
the src and dest options.

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

-- File uci/helpers.json --
{}
-- End --

-- File fs/open~_sys_class_net_eth0_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_lo_flags.txt --
0x9
-- End --

-- File uci/firewall.json --
{
	"zone": [
		{
			"name": "zone1",
			"device": [ "eth0" ],
			"auto_helper": 0
		},
		{
			"name": "zone2",
			"device": [ "lo" ],
			"auto_helper": 0
		},
		{
			"name": "zone3",
			"subnet": [ "127.0.0.1/8", "::1/128" ],
			"auto_helper": 0
		}
	],
	"rule": [
		{
			".description": "An ordinary notrack rule should end up in the raw_prerouting chain",
			"name": "Notrack rule #1",
			"src": "zone1",
			"target": "NOTRACK"
		},
		{
			".description": "A notrack rule with loopback source device should end up in the raw_output chain",
			"name": "Notrack rule #2",
			"src": "zone2",
			"target": "NOTRACK"
		},
		{
			".description": "A notrack rule with loopback source address should end up in the raw_output chain",
			"name": "Notrack rule #3",
			"src": "zone3",
			"target": "NOTRACK"
		}
	]
}
-- End --

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

table inet fw4 {
	#
	# Defines
	#

	define zone1_devices = { "eth0" }
	define zone1_subnets = {  }

	define zone2_devices = { "lo" }
	define zone2_subnets = {  }

	define zone3_devices = {  }
	define zone3_subnets = { 127.0.0.0/8, ::1 }


	#
	# User includes
	#

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


	#
	# Filter rules
	#

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

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

		ct state vmap { established : accept, related : accept } comment "!fw4: Handle inbound flows"
		iifname "eth0" jump input_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 input traffic"
		iifname "lo" jump input_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 input traffic"
		meta nfproto ipv4 ip saddr 127.0.0.0/8 jump input_zone3 comment "!fw4: Handle zone3 IPv4 input traffic"
		meta nfproto ipv6 ip6 saddr ::1 jump input_zone3 comment "!fw4: Handle zone3 IPv6 input traffic"
	}

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

		ct state vmap { established : accept, related : accept } comment "!fw4: Handle forwarded flows"
		iifname "eth0" jump forward_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 forward traffic"
		iifname "lo" jump forward_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 forward traffic"
		meta nfproto ipv4 ip saddr 127.0.0.0/8 jump forward_zone3 comment "!fw4: Handle zone3 IPv4 forward traffic"
		meta nfproto ipv6 ip6 saddr ::1 jump forward_zone3 comment "!fw4: Handle zone3 IPv6 forward traffic"
	}

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

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

		ct state vmap { established : accept, related : accept } comment "!fw4: Handle outbound flows"
		oifname "eth0" jump output_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 output traffic"
		oifname "lo" jump output_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 output traffic"
		meta nfproto ipv4 ip daddr 127.0.0.0/8 jump output_zone3 comment "!fw4: Handle zone3 IPv4 output traffic"
		meta nfproto ipv6 ip6 daddr ::1 jump output_zone3 comment "!fw4: Handle zone3 IPv6 output traffic"
	}

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

	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_zone1 {
		jump drop_from_zone1
	}

	chain output_zone1 {
		jump drop_to_zone1
	}

	chain forward_zone1 {
		jump drop_to_zone1
	}

	chain drop_from_zone1 {
		iifname "eth0" counter drop comment "!fw4: drop zone1 IPv4/IPv6 traffic"
	}

	chain drop_to_zone1 {
		oifname "eth0" counter drop comment "!fw4: drop zone1 IPv4/IPv6 traffic"
	}

	chain input_zone2 {
		jump drop_from_zone2
	}

	chain output_zone2 {
		jump drop_to_zone2
	}

	chain forward_zone2 {
		jump drop_to_zone2
	}

	chain drop_from_zone2 {
		iifname "lo" counter drop comment "!fw4: drop zone2 IPv4/IPv6 traffic"
	}

	chain drop_to_zone2 {
		oifname "lo" counter drop comment "!fw4: drop zone2 IPv4/IPv6 traffic"
	}

	chain input_zone3 {
		jump drop_from_zone3
	}

	chain output_zone3 {
		jump drop_to_zone3
	}

	chain forward_zone3 {
		jump drop_to_zone3
	}

	chain drop_from_zone3 {
		meta nfproto ipv4 ip saddr 127.0.0.0/8 counter drop comment "!fw4: drop zone3 IPv4 traffic"
		meta nfproto ipv6 ip6 saddr ::1 counter drop comment "!fw4: drop zone3 IPv6 traffic"
	}

	chain drop_to_zone3 {
		meta nfproto ipv4 ip daddr 127.0.0.0/8 counter drop comment "!fw4: drop zone3 IPv4 traffic"
		meta nfproto ipv6 ip6 daddr ::1 counter drop comment "!fw4: drop zone3 IPv6 traffic"
	}


	#
	# NAT rules
	#

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

	chain srcnat {
		type nat hook postrouting priority srcnat; policy accept;
	}


	#
	# Raw rules (notrack)
	#

	chain raw_prerouting {
		type filter hook prerouting priority raw; policy accept;
		iifname "eth0" jump notrack_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 notrack traffic"
	}

	chain raw_output {
		type filter hook output priority raw; policy accept;
		iifname "lo" jump notrack_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 notrack traffic"
		meta nfproto ipv4 ip saddr 127.0.0.0/8 jump notrack_zone3 comment "!fw4: Handle zone3 IPv4 notrack traffic"
		meta nfproto ipv6 ip6 saddr ::1 jump notrack_zone3 comment "!fw4: Handle zone3 IPv6 notrack traffic"
	}

	chain notrack_zone1 {
		meta l4proto tcp counter notrack comment "!fw4: Notrack rule #1"
		meta l4proto udp counter notrack comment "!fw4: Notrack rule #1"
	}

	chain notrack_zone2 {
		meta l4proto tcp counter notrack comment "!fw4: Notrack rule #2"
		meta l4proto udp counter notrack comment "!fw4: Notrack rule #2"
	}

	chain notrack_zone3 {
		meta l4proto tcp counter notrack comment "!fw4: Notrack rule #3"
		meta l4proto udp counter notrack comment "!fw4: Notrack rule #3"
	}


	#
	# 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 --