Testing that dropping of invalid conntrack state traffic can be inhibited. -- 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_zone1_flags.txt -- 0x1103 -- End -- -- File fs/open~_sys_class_net_zone2_flags.txt -- 0x1103 -- End -- -- File uci/firewall.json -- { "zone": [ { ".description": "No ct state invalid drop rule should be generated", "name": "test1", "input": "ACCEPT", "output": "ACCEPT", "forward": "ACCEPT", "device": "zone1", "masq": "1", "masq_allow_invalid": 1 } ] } -- End -- -- Expect stdout -- table inet fw4 flush table inet fw4 table inet fw4 { # # Defines # define test1_devices = { "zone1" } define test1_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" } 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" } 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" } 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_test1 { jump accept_from_test1 } chain output_test1 { jump accept_to_test1 } chain forward_test1 { jump accept_to_test1 } chain accept_from_test1 { iifname "zone1" counter accept comment "!fw4: accept test1 IPv4/IPv6 traffic" } chain accept_to_test1 { oifname "zone1" counter accept comment "!fw4: accept test1 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" } chain srcnat_test1 { meta nfproto ipv4 masquerade comment "!fw4: Masquerade IPv4 test1 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 --