Test that configured zone log limits are honored in emitted log rules. -- Testcase -- {% include("./root/usr/share/firewall4/main.uc", { getenv: function(varname) { switch (varname) { case 'ACTION': return 'print'; } } }) %} -- End -- -- File uci/firewall.json -- { "zone": [ { ".description": "test zone with log_limit", "name": "lan", "network": "lan", "auto_helper": 0, "log": 3, "log_limit": "1/min" }, { ".description": "test zone with MASQ and log_limit", "name": "wan", "network": "wan", "auto_helper": 0, "family": "ipv4", "masq": 1, "log": 3, "log_limit": "2/min" }, { ".description": "test zone with log_limit and no log", "name": "guest", "network": "guest", "auto_helper": 0, "log_limit": "3/min" }, { ".description": "test zone with log and no limit, should produce multi target rules", "name": "wan6", "network": "wan6", "auto_helper": 0, "family": "ipv6", "log": 1 } ], "forwarding": [ { "src": "lan", "dest": "wan" } ], "rule": [ { ".description": "src lan log", "proto": "tcp", "src": "lan", "dest_port": 1001, "log": 1 }, { ".description": "src lan no log", "proto": "tcp", "src": "lan", "dest_port": 1002, "log": 0 }, { ".description": "dest lan log", "proto": "tcp", "dest": "lan", "dest_port": 1003, "log": 1 }, { ".description": "dest lan no log", "proto": "tcp", "dest": "lan", "dest_port": 1004, "log": 0 }, { ".description": "Source any, dest lan, log", "proto": "tcp", "src": "*", "dest": "lan", "dest_port": 1005, "log": 1 }, { ".description": "Source any, dest lan, no log", "proto": "tcp", "src": "*", "dest": "lan", "dest_port": 1006, "log": 0 }, { ".description": "src any log", "proto": "tcp", "src": "*", "dest_port": 1007, "log": 1 }, { ".description": "src any no log", "proto": "tcp", "src": "*", "dest_port": 1008, "log": 0 }, { "name": "Deny guest with no log", "proto": "icmp", "dest": "guest", "target": "drop" }, { "name": "Deny guest with log", "proto": "icmp", "dest": "guest", "target": "drop", "log": 1 }, { "name": "Deny rule #1", "proto": "any", "src": "lan", "dest": "wan", "src_ip": [ "192.168.1.2" ], "target": "drop" }, { "name": "Deny rule #2", "proto": "icmp", "src": "lan", "dest": "wan", "src_ip": [ "192.168.1.3" ], "target": "drop" }, { ".description": "src any log", "proto": "tcp", "src": "*", "dest_port": 1009, "log": 1, "log_limit": "5/min" } ], "redirect": [ { "proto": "tcp", "src": "wan", "dest": "lan", "dest_ip": "10.0.0.2", "dest_port": "22", "log": "1" }, { "proto": "tcp", "src": "wan", "dest": "lan", "dest_ip": "10.0.0.2", "dest_port": "23", "log": "1", "log_limit": "4/min" } ] } -- End -- -- File uci/helpers.json -- {} -- End -- -- Expect stdout -- table inet fw4 flush table inet fw4 table inet fw4 { # # Defines # define lan_devices = { "br-lan" } define lan_subnets = { 10.0.0.0/24, 192.168.26.0/24, 2001:db8:1000::/60, fd63:e2f:f706::/60 } define wan_devices = { "pppoe-wan" } define wan_subnets = { 10.11.12.0/24 } define guest_devices = { "br-guest" } define guest_subnets = { 10.1.0.0/24, 192.168.27.0/24, 2001:db8:1000::/60, fd63:e2f:f706::/60 } define wan6_devices = { "pppoe-wan" } define wan6_subnets = { 2001:db8:54:321::/64 } # # Limits # limit lan.log_limit { comment "lan log limit" rate 1/minute } limit wan.log_limit { comment "wan log limit" rate 2/minute } limit guest.log_limit { comment "guest log limit" rate 3/minute } # # 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" tcp dport 1007 counter log prefix "@rule[6]: " comment "!fw4: @rule[6]" tcp dport 1008 counter comment "!fw4: @rule[7]" tcp dport 1009 limit rate 5/minute log prefix "@rule[12]: " tcp dport 1009 counter comment "!fw4: @rule[12]" iifname "br-lan" jump input_lan comment "!fw4: Handle lan IPv4/IPv6 input traffic" meta nfproto ipv4 iifname "pppoe-wan" jump input_wan comment "!fw4: Handle wan IPv4 input traffic" iifname "br-guest" jump input_guest comment "!fw4: Handle guest IPv4/IPv6 input traffic" meta nfproto ipv6 iifname "pppoe-wan" jump input_wan6 comment "!fw4: Handle wan6 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" tcp dport 1005 limit name "lan.log_limit" log prefix "@rule[4]: " tcp dport 1005 counter comment "!fw4: @rule[4]" tcp dport 1006 counter comment "!fw4: @rule[5]" iifname "br-lan" jump forward_lan comment "!fw4: Handle lan IPv4/IPv6 forward traffic" meta nfproto ipv4 iifname "pppoe-wan" jump forward_wan comment "!fw4: Handle wan IPv4 forward traffic" iifname "br-guest" jump forward_guest comment "!fw4: Handle guest IPv4/IPv6 forward traffic" meta nfproto ipv6 iifname "pppoe-wan" jump forward_wan6 comment "!fw4: Handle wan6 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 "br-lan" jump output_lan comment "!fw4: Handle lan IPv4/IPv6 output traffic" meta nfproto ipv4 oifname "pppoe-wan" jump output_wan comment "!fw4: Handle wan IPv4 output traffic" oifname "br-guest" jump output_guest comment "!fw4: Handle guest IPv4/IPv6 output traffic" meta nfproto ipv6 oifname "pppoe-wan" jump output_wan6 comment "!fw4: Handle wan6 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_lan { tcp dport 1001 limit name "lan.log_limit" log prefix "@rule[0]: " tcp dport 1001 counter comment "!fw4: @rule[0]" tcp dport 1002 counter comment "!fw4: @rule[1]" ct status dnat accept comment "!fw4: Accept port redirections" jump drop_from_lan } chain output_lan { tcp dport 1003 limit name "lan.log_limit" log prefix "@rule[2]: " tcp dport 1003 counter comment "!fw4: @rule[2]" tcp dport 1004 counter comment "!fw4: @rule[3]" jump drop_to_lan } chain forward_lan { ip saddr 192.168.1.2 counter jump drop_to_wan comment "!fw4: Deny rule #1" meta l4proto icmp ip saddr 192.168.1.3 counter jump drop_to_wan comment "!fw4: Deny rule #2" meta nfproto ipv4 jump accept_to_wan comment "!fw4: Accept lan to wan IPv4 forwarding" ct status dnat accept comment "!fw4: Accept port forwards" jump drop_to_lan limit name "lan.log_limit" log prefix "drop lan forward: " } chain accept_to_lan { oifname "br-lan" counter accept comment "!fw4: accept lan IPv4/IPv6 traffic" } chain drop_from_lan { iifname "br-lan" limit name "lan.log_limit" log prefix "drop lan in: " iifname "br-lan" counter drop comment "!fw4: drop lan IPv4/IPv6 traffic" } chain drop_to_lan { oifname "br-lan" limit name "lan.log_limit" log prefix "drop lan out: " oifname "br-lan" counter drop comment "!fw4: drop lan IPv4/IPv6 traffic" } chain input_wan { ct status dnat accept comment "!fw4: Accept port redirections" jump drop_from_wan } chain output_wan { jump drop_to_wan } chain forward_wan { ct status dnat accept comment "!fw4: Accept port forwards" jump drop_to_wan limit name "wan.log_limit" log prefix "drop wan forward: " } chain accept_to_wan { meta nfproto ipv4 oifname "pppoe-wan" ct state invalid limit name "wan.log_limit" log prefix "drop wan invalid ct state: " meta nfproto ipv4 oifname "pppoe-wan" ct state invalid counter drop comment "!fw4: Prevent NAT leakage" meta nfproto ipv4 oifname "pppoe-wan" counter accept comment "!fw4: accept wan IPv4 traffic" } chain drop_from_wan { meta nfproto ipv4 iifname "pppoe-wan" limit name "wan.log_limit" log prefix "drop wan in: " meta nfproto ipv4 iifname "pppoe-wan" counter drop comment "!fw4: drop wan IPv4 traffic" } chain drop_to_wan { meta nfproto ipv4 oifname "pppoe-wan" limit name "wan.log_limit" log prefix "drop wan out: " meta nfproto ipv4 oifname "pppoe-wan" counter drop comment "!fw4: drop wan IPv4 traffic" } chain input_guest { jump drop_from_guest } chain output_guest { meta l4proto { "icmp", "ipv6-icmp" } counter jump drop_to_guest comment "!fw4: Deny guest with no log" meta l4proto { "icmp", "ipv6-icmp" } limit name "guest.log_limit" log prefix "Deny guest with log: " meta l4proto { "icmp", "ipv6-icmp" } counter jump drop_to_guest comment "!fw4: Deny guest with log" jump drop_to_guest } chain forward_guest { jump drop_to_guest } chain drop_from_guest { iifname "br-guest" counter drop comment "!fw4: drop guest IPv4/IPv6 traffic" } chain drop_to_guest { oifname "br-guest" counter drop comment "!fw4: drop guest IPv4/IPv6 traffic" } chain input_wan6 { jump drop_from_wan6 } chain output_wan6 { jump drop_to_wan6 } chain forward_wan6 { jump drop_to_wan6 log prefix "drop wan6 forward: " } chain drop_from_wan6 { meta nfproto ipv6 iifname "pppoe-wan" counter log prefix "drop wan6 in: " drop comment "!fw4: drop wan6 IPv6 traffic" } chain drop_to_wan6 { meta nfproto ipv6 oifname "pppoe-wan" counter log prefix "drop wan6 out: " drop comment "!fw4: drop wan6 IPv6 traffic" } # # NAT rules # chain dstnat { type nat hook prerouting priority dstnat; policy accept; iifname "br-lan" jump dstnat_lan comment "!fw4: Handle lan IPv4/IPv6 dstnat traffic" meta nfproto ipv4 iifname "pppoe-wan" jump dstnat_wan comment "!fw4: Handle wan IPv4 dstnat traffic" } chain srcnat { type nat hook postrouting priority srcnat; policy accept; oifname "br-lan" jump srcnat_lan comment "!fw4: Handle lan IPv4/IPv6 srcnat traffic" meta nfproto ipv4 oifname "pppoe-wan" jump srcnat_wan comment "!fw4: Handle wan IPv4 srcnat traffic" } chain dstnat_lan { ip saddr { 10.0.0.0/24, 192.168.26.0/24 } ip daddr 10.11.12.194 dnat 10.0.0.2:22 comment "!fw4: @redirect[0] (reflection)" ip saddr { 10.0.0.0/24, 192.168.26.0/24 } ip daddr 10.11.12.194 dnat 10.0.0.2:23 comment "!fw4: @redirect[1] (reflection)" } chain srcnat_lan { ip saddr { 10.0.0.0/24, 192.168.26.0/24 } ip daddr 10.0.0.2 tcp dport 22 snat 10.0.0.1 comment "!fw4: @redirect[0] (reflection)" ip saddr { 10.0.0.0/24, 192.168.26.0/24 } ip daddr 10.0.0.2 tcp dport 23 snat 10.0.0.1 comment "!fw4: @redirect[1] (reflection)" } chain dstnat_wan { meta nfproto ipv4 limit name "wan.log_limit" log prefix "@redirect[0]: " meta nfproto ipv4 counter dnat 10.0.0.2:22 comment "!fw4: @redirect[0]" meta nfproto ipv4 limit rate 4/minute log prefix "@redirect[1]: " meta nfproto ipv4 counter dnat 10.0.0.2:23 comment "!fw4: @redirect[1]" } chain srcnat_wan { meta nfproto ipv4 masquerade comment "!fw4: Masquerade IPv4 wan 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 --