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|
Testing the ruleset rendered from the default firewall configuration.
-- Testcase --
{%
include("./root/usr/share/firewall4/main.uc", {
TRACE_CALLS: "stderr",
getenv: function(varname) {
switch (varname) {
case 'ACTION':
return 'print';
}
}
})
%}
-- End --
-- Expect stdout --
table inet fw4
flush table inet fw4
table inet fw4 {
#
# Flowtable
#
flowtable ft {
hook ingress priority 0;
devices = { "eth0", "eth1" };
counter;
flags offload;
}
#
# CT helper definitions
#
ct helper amanda {
type "amanda" protocol udp;
}
ct helper ftp {
type "ftp" protocol tcp;
}
ct helper RAS {
type "RAS" protocol udp;
}
ct helper Q.931 {
type "Q.931" protocol tcp;
}
ct helper irc {
type "irc" protocol tcp;
}
ct helper netbios-ns {
type "netbios-ns" protocol udp;
}
ct helper pptp {
type "pptp" protocol tcp;
}
ct helper sane {
type "sane" protocol tcp;
}
ct helper sip {
type "sip" protocol udp;
}
ct helper snmp {
type "snmp" protocol udp;
}
ct helper tftp {
type "tftp" protocol udp;
}
ct helper rtsp {
type "rtsp" protocol tcp;
}
#
# 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, 2001:db8:54:321::/64 }
#
# 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 flags & (fin | syn | rst | ack) == syn jump syn_flood comment "!fw4: Rate limit TCP syn packets"
iifname "br-lan" jump input_lan comment "!fw4: Handle lan IPv4/IPv6 input traffic"
iifname "pppoe-wan" jump input_wan comment "!fw4: Handle wan IPv4/IPv6 input traffic"
jump handle_reject
}
chain forward {
type filter hook forward priority filter; policy drop;
meta l4proto { tcp, udp } flow offload @ft;
ct state vmap { established : accept, related : accept } comment "!fw4: Handle forwarded flows"
iifname "br-lan" jump forward_lan comment "!fw4: Handle lan IPv4/IPv6 forward traffic"
iifname "pppoe-wan" jump forward_wan comment "!fw4: Handle wan IPv4/IPv6 forward traffic"
jump handle_reject
}
chain output {
type filter hook output priority filter; policy accept;
oif "lo" accept comment "!fw4: Accept traffic towards loopback"
ct state vmap { established : accept, related : accept } comment "!fw4: Handle outbound flows"
meta l4proto tcp counter comment "!fw4: Test-Deprecated-Rule-Option"
oifname "br-lan" jump output_lan comment "!fw4: Handle lan IPv4/IPv6 output traffic"
oifname "pppoe-wan" jump output_wan comment "!fw4: Handle wan IPv4/IPv6 output traffic"
}
chain prerouting {
type filter hook prerouting priority filter; policy accept;
iifname "br-lan" jump helper_lan comment "!fw4: Handle lan IPv4/IPv6 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 syn_flood {
limit rate 25/second burst 50 packets return comment "!fw4: Accept SYN packets below rate-limit"
drop comment "!fw4: Drop excess packets"
}
chain input_lan {
jump accept_from_lan
}
chain output_lan {
jump accept_to_lan
}
chain forward_lan {
jump accept_to_wan comment "!fw4: Accept lan to wan forwarding"
jump accept_to_lan
}
chain helper_lan {
meta l4proto udp udp dport 10080 ct helper set "amanda" comment "!fw4: Amanda backup and archiving proto"
meta l4proto tcp tcp dport 21 ct helper set "ftp" comment "!fw4: FTP passive connection tracking"
meta l4proto udp udp dport 1719 ct helper set "RAS" comment "!fw4: RAS proto tracking"
meta l4proto tcp tcp dport 1720 ct helper set "Q.931" comment "!fw4: Q.931 proto tracking"
meta nfproto ipv4 meta l4proto tcp tcp dport 6667 ct helper set "irc" comment "!fw4: IRC DCC connection tracking"
meta nfproto ipv4 meta l4proto udp udp dport 137 ct helper set "netbios-ns" comment "!fw4: NetBIOS name service broadcast tracking"
meta nfproto ipv4 meta l4proto tcp tcp dport 1723 ct helper set "pptp" comment "!fw4: PPTP VPN connection tracking"
meta l4proto tcp tcp dport 6566 ct helper set "sane" comment "!fw4: SANE scanner connection tracking"
meta l4proto udp udp dport 5060 ct helper set "sip" comment "!fw4: SIP VoIP connection tracking"
meta nfproto ipv4 meta l4proto udp udp dport 161 ct helper set "snmp" comment "!fw4: SNMP monitoring connection tracking"
meta l4proto udp udp dport 69 ct helper set "tftp" comment "!fw4: TFTP connection tracking"
meta nfproto ipv4 meta l4proto tcp tcp dport 554 ct helper set "rtsp" comment "!fw4: RTSP connection tracking"
}
chain accept_from_lan {
iifname "br-lan" counter accept comment "!fw4: accept lan IPv4/IPv6 traffic"
}
chain accept_to_lan {
oifname "br-lan" counter accept comment "!fw4: accept lan IPv4/IPv6 traffic"
}
chain input_wan {
meta nfproto ipv4 udp dport 68 counter accept comment "!fw4: Allow-DHCP-Renew"
meta nfproto ipv4 icmp type 8 counter accept comment "!fw4: Allow-Ping"
meta nfproto ipv4 meta l4proto igmp counter accept comment "!fw4: Allow-IGMP"
ip6 saddr fc00::/6 ip6 daddr fc00::/6 udp dport 546 counter accept comment "!fw4: Allow-DHCPv6"
ip6 saddr fe80::/10 icmpv6 type . icmpv6 code { 130 . 0, 131 . 0, 132 . 0, 143 . 0 } counter accept comment "!fw4: Allow-MLD"
meta nfproto ipv6 icmpv6 type { 128, 129, 1, 3, 133, 134 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Input"
meta nfproto ipv6 icmpv6 type . icmpv6 code { 2 . 0, 4 . 0, 4 . 1, 135 . 0, 136 . 0 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Input"
jump reject_from_wan
}
chain output_wan {
jump accept_to_wan
}
chain forward_wan {
meta nfproto ipv6 icmpv6 type { 128, 129, 1, 3 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Forward"
meta nfproto ipv6 icmpv6 type . icmpv6 code { 2 . 0, 4 . 0, 4 . 1 } limit rate 1000/second counter accept comment "!fw4: Allow-ICMPv6-Forward"
meta l4proto esp counter jump accept_to_lan comment "!fw4: Allow-IPSec-ESP"
udp dport 500 counter jump accept_to_lan comment "!fw4: Allow-ISAKMP"
jump reject_to_wan
}
chain accept_to_wan {
meta nfproto ipv4 oifname "pppoe-wan" ct state invalid counter drop comment "!fw4: Prevent NAT leakage"
oifname "pppoe-wan" counter accept comment "!fw4: accept wan IPv4/IPv6 traffic"
}
chain reject_from_wan {
iifname "pppoe-wan" counter jump handle_reject comment "!fw4: reject wan IPv4/IPv6 traffic"
}
chain reject_to_wan {
oifname "pppoe-wan" counter jump handle_reject comment "!fw4: reject 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;
oifname "pppoe-wan" jump srcnat_wan comment "!fw4: Handle wan IPv4/IPv6 srcnat traffic"
}
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;
oifname "pppoe-wan" tcp flags syn / syn,fin,rst tcp option maxseg size set rt mtu comment "!fw4: Zone wan IPv4/IPv6 egress MTU fixing"
}
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;
iifname "pppoe-wan" tcp flags syn / syn,fin,rst tcp option maxseg size set rt mtu comment "!fw4: Zone wan IPv4/IPv6 ingress MTU fixing"
}
}
-- End --
-- Expect stderr --
[call] ctx.call object <network.interface> method <dump> args <null>
[call] ctx.call object <service> method <get_data> args <{ "type": "firewall" }>
[call] fs.open path </proc/version> mode <r>
[call] fs.stat path </sys/module/nf_conntrack_amanda>
[call] fs.stat path </sys/module/nf_conntrack_ftp>
[call] fs.stat path </sys/module/nf_conntrack_h323>
[call] fs.stat path </sys/module/nf_conntrack_h323>
[call] fs.stat path </sys/module/nf_conntrack_irc>
[call] fs.stat path </sys/module/nf_conntrack_netbios_ns>
[call] fs.stat path </sys/module/nf_conntrack_pptp>
[call] fs.stat path </sys/module/nf_conntrack_sane>
[call] fs.stat path </sys/module/nf_conntrack_sip>
[call] fs.stat path </sys/module/nf_conntrack_snmp>
[call] fs.stat path </sys/module/nf_conntrack_tftp>
[call] fs.stat path </sys/module/nf_conntrack_rtsp>
[!] Section @defaults[0] specifies unknown option 'unknown_defaults_option'
[!] Section @rule[9] (Test-Deprecated-Rule-Option) option '_name' is deprecated by fw4
[!] Section @rule[9] (Test-Deprecated-Rule-Option) specifies unknown option 'unknown_rule_option'
[call] fs.glob pattern </usr/share/nftables.d/ruleset-pre/*.nft>
[call] fs.glob pattern </usr/share/nftables.d/ruleset-post/*.nft>
[call] fs.glob pattern </usr/share/nftables.d/table-pre/*.nft>
[call] fs.glob pattern </usr/share/nftables.d/table-post/*.nft>
[call] fs.lsdir path </usr/share/nftables.d/chain-pre>
[call] fs.lsdir path </usr/share/nftables.d/chain-post>
[call] ctx.call object <network.device> method <status> args <null>
[call] fs.opendir path </sys/class/net/br-lan>
[call] fs.opendir path </sys/class/net/eth0>
[call] fs.opendir path </sys/class/net/eth1>
[call] system command </usr/sbin/nft -c '
add table inet fw4-hw-offload-test;
add flowtable inet fw4-hw-offload-test ft {
hook ingress priority 0;
devices = { "eth0", "eth1" };
flags offload;
}
' 2>/dev/null> timeout <null>
[call] fs.popen cmdline </usr/sbin/nft --terse --json list flowtables inet> mode <r>
[call] fs.readfile path </sys/class/net/br-lan/flags> limit <null>
[call] fs.readfile path </sys/class/net/br-lan/flags> limit <null>
-- End --
|
