Ensure that DSCP and MARK target 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_eth1_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_eth2_flags.txt --
0x1103
-- End --

-- File fs/open~_sys_class_net_eth3_flags.txt --
0x1103
-- End --

-- File uci/firewall.json --
{
	"zone": [
		{
			"name": "lan",
			"device": [ "eth0", "eth1" ]
		},
		{
			"name": "wan",
			"device": [ "eth2", "eth3" ]
		}
	],
	"rule": [
		{
			".description": "Source '*' and destination '*' should result in a forward rule",
			"name": "Mangle rule #1",
			"src": "*",
			"dest": "*",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "Source zone and destination zone should result in a forward rule",
			"name": "Mangle rule #2",
			"src": "lan",
			"dest": "wan",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "Any source zone and specific destination zone should result in a postrouting rule",
			"name": "Mangle rule #3",
			"src": "*",
			"dest": "wan",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "Specific source zone and any destination zone should result in a prerouting rule",
			"name": "Mangle rule #4",
			"src": "lan",
			"dest": "*",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "Specific source zone and no destination zone should result in an input rule",
			"name": "Mangle rule #5",
			"src": "lan",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "Any source zone and no destination zone should result in an input rule",
			"name": "Mangle rule #6",
			"src": "*",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "No source zone and no destination zone should result in an output rule",
			"name": "Mangle rule #7",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "No source zone and any destination zone should result in an output rule",
			"name": "Mangle rule #8",
			"dest": "*",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "No source zone and specific destination zone should result in an output rule",
			"name": "Mangle rule #9",
			"dest": "wan",
			"target": "DSCP",
			"set_dscp": "1"
		},
		{
			".description": "Option device with no direction should override inbound ifname match",
			"name": "Mangle rule #10",
			"src": "*",
			"dest": "wan",
			"target": "DSCP",
			"set_dscp": "1",
			"device": "eth4"
		},
		{
			".description": "Option device with direction 'in' should override inbound ifname match",
			"name": "Mangle rule #11",
			"src": "*",
			"dest": "wan",
			"target": "DSCP",
			"set_dscp": "1",
			"device": "eth4",
			"direction": "in"
		},
		{
			".description": "Option device with direction 'out' should override outbound ifname match",
			"name": "Mangle rule #12",
			"src": "*",
			"dest": "wan",
			"target": "DSCP",
			"set_dscp": "1",
			"device": "eth5",
			"direction": "out"
		}
	]
}
-- End --

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

table inet fw4 {
	#
	# Set definitions
	#


	#
	# Defines
	#

	define lan_devices = { "eth0", "eth1" }
	define wan_devices = { "eth2", "eth3" }

	#
	# 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 { "eth0", "eth1" } jump input_lan comment "!fw4: Handle lan IPv4/IPv6 input traffic"
		iifname { "eth2", "eth3" } jump input_wan comment "!fw4: Handle wan 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 { "eth0", "eth1" } jump forward_lan comment "!fw4: Handle lan IPv4/IPv6 forward traffic"
		iifname { "eth2", "eth3" } jump forward_wan comment "!fw4: Handle wan 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 { "eth0", "eth1" } jump output_lan comment "!fw4: Handle lan IPv4/IPv6 output traffic"
		oifname { "eth2", "eth3" } jump output_wan comment "!fw4: Handle wan IPv4/IPv6 output traffic"
	}

	chain prerouting {
		type filter hook prerouting priority filter; policy accept;
		iifname { "eth0", "eth1" } jump helper_lan comment "!fw4: lan IPv4/IPv6 CT helper assignment"
		iifname { "eth2", "eth3" } jump helper_wan comment "!fw4: wan IPv4/IPv6 CT 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_lan {
		jump drop_from_lan
	}

	chain output_lan {
		jump drop_to_lan
	}

	chain forward_lan {
		jump drop_to_lan
	}

	chain helper_lan {
	}

	chain drop_from_lan {
		iifname { "eth0", "eth1" } counter drop comment "!fw4: drop lan IPv4/IPv6 traffic"
	}

	chain drop_to_lan {
		oifname { "eth0", "eth1" } counter drop comment "!fw4: drop lan IPv4/IPv6 traffic"
	}

	chain input_wan {
		jump drop_from_wan
	}

	chain output_wan {
		jump drop_to_wan
	}

	chain forward_wan {
		jump drop_to_wan
	}

	chain helper_wan {
	}

	chain drop_from_wan {
		iifname { "eth2", "eth3" } counter drop comment "!fw4: drop wan IPv4/IPv6 traffic"
	}

	chain drop_to_wan {
		oifname { "eth2", "eth3" } counter drop comment "!fw4: drop wan 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;
	}


	#
	# 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;
		meta nfproto ipv4 meta l4proto tcp iifname { "eth0", "eth1" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #4"
		meta nfproto ipv6 meta l4proto tcp iifname { "eth0", "eth1" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #4"
		meta nfproto ipv4 meta l4proto udp iifname { "eth0", "eth1" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #4"
		meta nfproto ipv6 meta l4proto udp iifname { "eth0", "eth1" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #4"
	}

	chain mangle_postrouting {
		type filter hook postrouting priority mangle; policy accept;
		meta nfproto ipv4 meta l4proto tcp oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #3"
		meta nfproto ipv6 meta l4proto tcp oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #3"
		meta nfproto ipv4 meta l4proto udp oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #3"
		meta nfproto ipv6 meta l4proto udp oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #3"
		meta nfproto ipv4 meta l4proto tcp iifname "eth4" oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #10"
		meta nfproto ipv6 meta l4proto tcp iifname "eth4" oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #10"
		meta nfproto ipv4 meta l4proto udp iifname "eth4" oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #10"
		meta nfproto ipv6 meta l4proto udp iifname "eth4" oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #10"
		meta nfproto ipv4 meta l4proto tcp iifname "eth4" oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #11"
		meta nfproto ipv6 meta l4proto tcp iifname "eth4" oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #11"
		meta nfproto ipv4 meta l4proto udp iifname "eth4" oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #11"
		meta nfproto ipv6 meta l4proto udp iifname "eth4" oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #11"
		meta nfproto ipv4 meta l4proto tcp oifname "eth5" counter ip dscp set 0x1 comment "!fw4: Mangle rule #12"
		meta nfproto ipv6 meta l4proto tcp oifname "eth5" counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #12"
		meta nfproto ipv4 meta l4proto udp oifname "eth5" counter ip dscp set 0x1 comment "!fw4: Mangle rule #12"
		meta nfproto ipv6 meta l4proto udp oifname "eth5" counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #12"
	}

	chain mangle_input {
		type filter hook input priority mangle; policy accept;
		meta nfproto ipv4 meta l4proto tcp iifname { "eth0", "eth1" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #5"
		meta nfproto ipv6 meta l4proto tcp iifname { "eth0", "eth1" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #5"
		meta nfproto ipv4 meta l4proto udp iifname { "eth0", "eth1" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #5"
		meta nfproto ipv6 meta l4proto udp iifname { "eth0", "eth1" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #5"
		meta nfproto ipv4 meta l4proto tcp counter ip dscp set 0x1 comment "!fw4: Mangle rule #6"
		meta nfproto ipv6 meta l4proto tcp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #6"
		meta nfproto ipv4 meta l4proto udp counter ip dscp set 0x1 comment "!fw4: Mangle rule #6"
		meta nfproto ipv6 meta l4proto udp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #6"
	}

	chain mangle_output {
		type route hook output priority mangle; policy accept;
		meta nfproto ipv4 meta l4proto tcp counter ip dscp set 0x1 comment "!fw4: Mangle rule #7"
		meta nfproto ipv6 meta l4proto tcp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #7"
		meta nfproto ipv4 meta l4proto udp counter ip dscp set 0x1 comment "!fw4: Mangle rule #7"
		meta nfproto ipv6 meta l4proto udp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #7"
		meta nfproto ipv4 meta l4proto tcp counter ip dscp set 0x1 comment "!fw4: Mangle rule #8"
		meta nfproto ipv6 meta l4proto tcp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #8"
		meta nfproto ipv4 meta l4proto udp counter ip dscp set 0x1 comment "!fw4: Mangle rule #8"
		meta nfproto ipv6 meta l4proto udp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #8"
		meta nfproto ipv4 meta l4proto tcp oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #9"
		meta nfproto ipv6 meta l4proto tcp oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #9"
		meta nfproto ipv4 meta l4proto udp oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #9"
		meta nfproto ipv6 meta l4proto udp oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #9"
	}

	chain mangle_forward {
		type filter hook forward priority mangle; policy accept;
		meta nfproto ipv4 meta l4proto tcp counter ip dscp set 0x1 comment "!fw4: Mangle rule #1"
		meta nfproto ipv6 meta l4proto tcp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #1"
		meta nfproto ipv4 meta l4proto udp counter ip dscp set 0x1 comment "!fw4: Mangle rule #1"
		meta nfproto ipv6 meta l4proto udp counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #1"
		meta nfproto ipv4 meta l4proto tcp iifname { "eth0", "eth1" } oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #2"
		meta nfproto ipv6 meta l4proto tcp iifname { "eth0", "eth1" } oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #2"
		meta nfproto ipv4 meta l4proto udp iifname { "eth0", "eth1" } oifname { "eth2", "eth3" } counter ip dscp set 0x1 comment "!fw4: Mangle rule #2"
		meta nfproto ipv6 meta l4proto udp iifname { "eth0", "eth1" } oifname { "eth2", "eth3" } counter ip6 dscp set 0x1 comment "!fw4: Mangle rule #2"
	}
}
-- End --