Test that the zone family is honoured when setting up inter-zone forwarding rules.
   
   -- Testcase --
   {%
           include("./root/usr/share/firewall4/main.uc", {
                   getenv: function(varname) {
                           switch (varname) {
                           case 'ACTION':
                                   return 'print';
                          }
                  }
          })
  %}
  -- End --
  
  -- File uci/helpers.json --
  {}
  -- End --
  
  -- File uci/firewall.json --
  {
          "zone": [
                  {
                          "name": "wanA",
                          "device": [ "eth0" ],
                          "auto_helper": 0
                  },
  
                  {
                          "name": "wanB",
                          "device": [ "eth1" ],
                          "auto_helper": 0
                  },
  
                  {
                          "name": "lan",
                          "device": [ "eth2" ],
                          "auto_helper": 0
                  }
          ],
  
          "forwarding": [
                  {
                          ".description": "This should only allow IPv6 forwarding from lan to wanA",
                          "src": "lan",
                          "dest": "wanA",
                          "family": "IPv6"
                  },
  
                  {
                          ".description": "This should only allow IPv4 forwarding from lan to wanB",
                          "src": "lan",
                          "dest": "wanB",
                          "family": "IPv4"
                  }
          ]
  }
  -- End --
  
  -- Expect stdout --
  table inet fw4
  flush table inet fw4
  
  table inet fw4 {
          #
          # Defines
          #
  
          define wanA_devices = { "eth0" }
          define wanA_subnets = {  }
  
          define wanB_devices = { "eth1" }
          define wanB_subnets = {  }
  
          define lan_devices = { "eth2" }
          define lan_subnets = {  }
  
  
          #
          # 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_wanA comment "!fw4: Handle wanA IPv4/IPv6 input traffic"
                  iifname "eth1" jump input_wanB comment "!fw4: Handle wanB IPv4/IPv6 input traffic"
                  iifname "eth2" jump input_lan comment "!fw4: Handle lan IPv4/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_wanA comment "!fw4: Handle wanA IPv4/IPv6 forward traffic"
                 iifname "eth1" jump forward_wanB comment "!fw4: Handle wanB IPv4/IPv6 forward traffic"
                 iifname "eth2" jump forward_lan comment "!fw4: Handle lan IPv4/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_wanA comment "!fw4: Handle wanA IPv4/IPv6 output traffic"
                 oifname "eth1" jump output_wanB comment "!fw4: Handle wanB IPv4/IPv6 output traffic"
                 oifname "eth2" jump output_lan comment "!fw4: Handle lan IPv4/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_wanA {
                 jump drop_from_wanA
         }
 
         chain output_wanA {
                 jump drop_to_wanA
         }
 
         chain forward_wanA {
                 jump drop_to_wanA
         }
 
         chain accept_to_wanA {
                 oifname "eth0" counter accept comment "!fw4: accept wanA IPv4/IPv6 traffic"
         }
 
         chain drop_from_wanA {
                 iifname "eth0" counter drop comment "!fw4: drop wanA IPv4/IPv6 traffic"
         }
 
         chain drop_to_wanA {
                 oifname "eth0" counter drop comment "!fw4: drop wanA IPv4/IPv6 traffic"
         }
 
         chain input_wanB {
                 jump drop_from_wanB
         }
 
         chain output_wanB {
                 jump drop_to_wanB
         }
 
         chain forward_wanB {
                 jump drop_to_wanB
         }
 
         chain accept_to_wanB {
                 oifname "eth1" counter accept comment "!fw4: accept wanB IPv4/IPv6 traffic"
         }
 
         chain drop_from_wanB {
                 iifname "eth1" counter drop comment "!fw4: drop wanB IPv4/IPv6 traffic"
         }
 
         chain drop_to_wanB {
                 oifname "eth1" counter drop comment "!fw4: drop wanB IPv4/IPv6 traffic"
         }
 
         chain input_lan {
                 jump drop_from_lan
         }
 
         chain output_lan {
                 jump drop_to_lan
         }
 
         chain forward_lan {
                 meta nfproto ipv6 jump accept_to_wanA comment "!fw4: Accept lan to wanA IPv6 forwarding"
                 meta nfproto ipv4 jump accept_to_wanB comment "!fw4: Accept lan to wanB IPv4 forwarding"
                 jump drop_to_lan
         }
 
         chain drop_from_lan {
                 iifname "eth2" counter drop comment "!fw4: drop lan IPv4/IPv6 traffic"
         }
 
         chain drop_to_lan {
                 oifname "eth2" counter drop comment "!fw4: drop lan 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;
         }
 
         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 --

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