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|
Ensure that NOTRACK 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_lo_flags.txt --
0x9
-- End --
-- File uci/firewall.json --
{
"zone": [
{
"name": "zone1",
"device": [ "eth0" ],
"auto_helper": 0
},
{
"name": "zone2",
"device": [ "lo" ],
"auto_helper": 0
},
{
"name": "zone3",
"subnet": [ "127.0.0.1/8", "::1/128" ],
"auto_helper": 0
}
],
"rule": [
{
".description": "An ordinary notrack rule should end up in the raw_prerouting chain",
"name": "Notrack rule #1",
"src": "zone1",
"target": "NOTRACK"
},
{
".description": "A notrack rule with loopback source device should end up in the raw_output chain",
"name": "Notrack rule #2",
"src": "zone2",
"target": "NOTRACK"
},
{
".description": "A notrack rule with loopback source address should end up in the raw_output chain",
"name": "Notrack rule #3",
"src": "zone3",
"target": "NOTRACK"
}
]
}
-- End --
-- Expect stdout --
table inet fw4
flush table inet fw4
table inet fw4 {
#
# Defines
#
define zone1_devices = { "eth0" }
define zone1_subnets = { }
define zone2_devices = { "lo" }
define zone2_subnets = { }
define zone3_devices = { }
define zone3_subnets = { 127.0.0.0/8, ::1 }
#
# 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_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 input traffic"
iifname "lo" jump input_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 input traffic"
meta nfproto ipv4 ip saddr 127.0.0.0/8 jump input_zone3 comment "!fw4: Handle zone3 IPv4 input traffic"
meta nfproto ipv6 ip6 saddr ::1 jump input_zone3 comment "!fw4: Handle zone3 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_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 forward traffic"
iifname "lo" jump forward_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 forward traffic"
meta nfproto ipv4 ip saddr 127.0.0.0/8 jump forward_zone3 comment "!fw4: Handle zone3 IPv4 forward traffic"
meta nfproto ipv6 ip6 saddr ::1 jump forward_zone3 comment "!fw4: Handle zone3 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_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 output traffic"
oifname "lo" jump output_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 output traffic"
meta nfproto ipv4 ip daddr 127.0.0.0/8 jump output_zone3 comment "!fw4: Handle zone3 IPv4 output traffic"
meta nfproto ipv6 ip6 daddr ::1 jump output_zone3 comment "!fw4: Handle zone3 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_zone1 {
jump drop_from_zone1
}
chain output_zone1 {
jump drop_to_zone1
}
chain forward_zone1 {
jump drop_to_zone1
}
chain drop_from_zone1 {
iifname "eth0" counter drop comment "!fw4: drop zone1 IPv4/IPv6 traffic"
}
chain drop_to_zone1 {
oifname "eth0" counter drop comment "!fw4: drop zone1 IPv4/IPv6 traffic"
}
chain input_zone2 {
jump drop_from_zone2
}
chain output_zone2 {
jump drop_to_zone2
}
chain forward_zone2 {
jump drop_to_zone2
}
chain drop_from_zone2 {
iifname "lo" counter drop comment "!fw4: drop zone2 IPv4/IPv6 traffic"
}
chain drop_to_zone2 {
oifname "lo" counter drop comment "!fw4: drop zone2 IPv4/IPv6 traffic"
}
chain input_zone3 {
jump drop_from_zone3
}
chain output_zone3 {
jump drop_to_zone3
}
chain forward_zone3 {
jump drop_to_zone3
}
chain drop_from_zone3 {
meta nfproto ipv4 ip saddr 127.0.0.0/8 counter drop comment "!fw4: drop zone3 IPv4 traffic"
meta nfproto ipv6 ip6 saddr ::1 counter drop comment "!fw4: drop zone3 IPv6 traffic"
}
chain drop_to_zone3 {
meta nfproto ipv4 ip daddr 127.0.0.0/8 counter drop comment "!fw4: drop zone3 IPv4 traffic"
meta nfproto ipv6 ip6 daddr ::1 counter drop comment "!fw4: drop zone3 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;
iifname "eth0" jump notrack_zone1 comment "!fw4: Handle zone1 IPv4/IPv6 notrack traffic"
}
chain raw_output {
type filter hook output priority raw; policy accept;
iifname "lo" jump notrack_zone2 comment "!fw4: Handle zone2 IPv4/IPv6 notrack traffic"
meta nfproto ipv4 ip saddr 127.0.0.0/8 jump notrack_zone3 comment "!fw4: Handle zone3 IPv4 notrack traffic"
meta nfproto ipv6 ip6 saddr ::1 jump notrack_zone3 comment "!fw4: Handle zone3 IPv6 notrack traffic"
}
chain notrack_zone1 {
meta l4proto tcp counter notrack comment "!fw4: Notrack rule #1"
meta l4proto udp counter notrack comment "!fw4: Notrack rule #1"
}
chain notrack_zone2 {
meta l4proto tcp counter notrack comment "!fw4: Notrack rule #2"
meta l4proto udp counter notrack comment "!fw4: Notrack rule #2"
}
chain notrack_zone3 {
meta l4proto tcp counter notrack comment "!fw4: Notrack rule #3"
meta l4proto udp counter notrack comment "!fw4: Notrack rule #3"
}
#
# 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 --
|
