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-rw-r--r--data/templates/firewall/nftables-zone.j211
-rw-r--r--data/templates/firewall/nftables.j250
-rw-r--r--interface-definitions/firewall.xml.in2
-rw-r--r--interface-definitions/include/firewall/global-options.xml.i37
-rw-r--r--python/vyos/template.py2
-rwxr-xr-xsmoketest/scripts/cli/test_firewall.py33
6 files changed, 127 insertions, 8 deletions
diff --git a/data/templates/firewall/nftables-zone.j2 b/data/templates/firewall/nftables-zone.j2
index beb14ff00..5e55099ca 100644
--- a/data/templates/firewall/nftables-zone.j2
+++ b/data/templates/firewall/nftables-zone.j2
@@ -1,5 +1,5 @@
-{% macro zone_chains(zone, family) %}
+{% macro zone_chains(zone, family, state_policy=False) %}
{% if family == 'ipv6' %}
{% set fw_name = 'ipv6_name' %}
{% set suffix = '6' %}
@@ -10,6 +10,9 @@
chain VYOS_ZONE_FORWARD {
type filter hook forward priority 1; policy accept;
+{% if state_policy %}
+ jump VYOS_STATE_POLICY{{ suffix }}
+{% endif %}
{% for zone_name, zone_conf in zone.items() %}
{% if 'local_zone' not in zone_conf %}
oifname { {{ zone_conf.interface | join(',') }} } counter jump VZONE_{{ zone_name }}
@@ -18,6 +21,9 @@
}
chain VYOS_ZONE_LOCAL {
type filter hook input priority 1; policy accept;
+{% if state_policy %}
+ jump VYOS_STATE_POLICY{{ suffix }}
+{% endif %}
{% for zone_name, zone_conf in zone.items() %}
{% if 'local_zone' in zone_conf %}
counter jump VZONE_{{ zone_name }}_IN
@@ -26,6 +32,9 @@
}
chain VYOS_ZONE_OUTPUT {
type filter hook output priority 1; policy accept;
+{% if state_policy %}
+ jump VYOS_STATE_POLICY{{ suffix }}
+{% endif %}
{% for zone_name, zone_conf in zone.items() %}
{% if 'local_zone' in zone_conf %}
counter jump VZONE_{{ zone_name }}_OUT
diff --git a/data/templates/firewall/nftables.j2 b/data/templates/firewall/nftables.j2
index 63195d25f..e0ad0e00a 100644
--- a/data/templates/firewall/nftables.j2
+++ b/data/templates/firewall/nftables.j2
@@ -46,6 +46,9 @@ table ip vyos_filter {
{% for prior, conf in ipv4.forward.items() %}
chain VYOS_FORWARD_{{ prior }} {
type filter hook forward priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY
+{% endif %}
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('FWD', prior, rule_id) }}
@@ -63,6 +66,9 @@ table ip vyos_filter {
{% for prior, conf in ipv4.input.items() %}
chain VYOS_INPUT_{{ prior }} {
type filter hook input priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY
+{% endif %}
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('INP',prior, rule_id) }}
@@ -80,6 +86,9 @@ table ip vyos_filter {
{% for prior, conf in ipv4.output.items() %}
chain VYOS_OUTPUT_{{ prior }} {
type filter hook output priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY
+{% endif %}
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('OUT', prior, rule_id) }}
@@ -154,7 +163,21 @@ table ip vyos_filter {
{{ group_tmpl.groups(group, False, True) }}
{% if zone is vyos_defined %}
-{{ zone_tmpl.zone_chains(zone, 'ipv4') }}
+{{ zone_tmpl.zone_chains(zone, 'ipv4', global_options.state_policy is vyos_defined) }}
+{% endif %}
+{% if global_options.state_policy is vyos_defined %}
+ chain VYOS_STATE_POLICY {
+{% if global_options.state_policy.established is vyos_defined %}
+ {{ global_options.state_policy.established | nft_state_policy('established') }}
+{% endif %}
+{% if global_options.state_policy.invalid is vyos_defined %}
+ {{ global_options.state_policy.invalid | nft_state_policy('invalid') }}
+{% endif %}
+{% if global_options.state_policy.related is vyos_defined %}
+ {{ global_options.state_policy.related | nft_state_policy('related') }}
+{% endif %}
+ return
+ }
{% endif %}
}
@@ -174,6 +197,9 @@ table ip6 vyos_filter {
{% for prior, conf in ipv6.forward.items() %}
chain VYOS_IPV6_FORWARD_{{ prior }} {
type filter hook forward priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY6
+{% endif %}
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('FWD', prior, rule_id ,'ip6') }}
@@ -191,6 +217,9 @@ table ip6 vyos_filter {
{% for prior, conf in ipv6.input.items() %}
chain VYOS_IPV6_INPUT_{{ prior }} {
type filter hook input priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY6
+{% endif %}
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('INP', prior, rule_id ,'ip6') }}
@@ -208,6 +237,9 @@ table ip6 vyos_filter {
{% for prior, conf in ipv6.output.items() %}
chain VYOS_IPV6_OUTPUT_{{ prior }} {
type filter hook output priority {{ prior }}; policy accept;
+{% if global_options.state_policy is vyos_defined %}
+ jump VYOS_STATE_POLICY6
+{% endif %}
{% if conf.rule is vyos_defined %}
{% for rule_id, rule_conf in conf.rule.items() if rule_conf.disable is not vyos_defined %}
{{ rule_conf | nft_rule('OUT', prior, rule_id ,'ip6') }}
@@ -266,7 +298,21 @@ table ip6 vyos_filter {
{% endif %}
{{ group_tmpl.groups(group, True, True) }}
{% if zone is vyos_defined %}
-{{ zone_tmpl.zone_chains(zone, 'ipv6') }}
+{{ zone_tmpl.zone_chains(zone, 'ipv6', global_options.state_policy is vyos_defined) }}
+{% endif %}
+{% if global_options.state_policy is vyos_defined %}
+ chain VYOS_STATE_POLICY6 {
+{% if global_options.state_policy.established is vyos_defined %}
+ {{ global_options.state_policy.established | nft_state_policy('established') }}
+{% endif %}
+{% if global_options.state_policy.invalid is vyos_defined %}
+ {{ global_options.state_policy.invalid | nft_state_policy('invalid') }}
+{% endif %}
+{% if global_options.state_policy.related is vyos_defined %}
+ {{ global_options.state_policy.related | nft_state_policy('related') }}
+{% endif %}
+ return
+ }
{% endif %}
}
diff --git a/interface-definitions/firewall.xml.in b/interface-definitions/firewall.xml.in
index 0bb14a1b3..70afdc995 100644
--- a/interface-definitions/firewall.xml.in
+++ b/interface-definitions/firewall.xml.in
@@ -393,7 +393,7 @@
<properties>
<help>Zone from which to filter traffic</help>
<completionHelp>
- <path>zone-policy zone</path>
+ <path>firewall zone</path>
</completionHelp>
</properties>
<children>
diff --git a/interface-definitions/include/firewall/global-options.xml.i b/interface-definitions/include/firewall/global-options.xml.i
index e655cd6ac..415d85f05 100644
--- a/interface-definitions/include/firewall/global-options.xml.i
+++ b/interface-definitions/include/firewall/global-options.xml.i
@@ -167,6 +167,43 @@
</properties>
<defaultValue>disable</defaultValue>
</leafNode>
+ <node name="state-policy">
+ <properties>
+ <help>Global firewall state-policy</help>
+ </properties>
+ <children>
+ <node name="established">
+ <properties>
+ <help>Global firewall policy for packets part of an established connection</help>
+ </properties>
+ <children>
+ #include <include/firewall/action-accept-drop-reject.xml.i>
+ #include <include/firewall/log.xml.i>
+ #include <include/firewall/rule-log-level.xml.i>
+ </children>
+ </node>
+ <node name="invalid">
+ <properties>
+ <help>Global firewall policy for packets part of an invalid connection</help>
+ </properties>
+ <children>
+ #include <include/firewall/action-accept-drop-reject.xml.i>
+ #include <include/firewall/log.xml.i>
+ #include <include/firewall/rule-log-level.xml.i>
+ </children>
+ </node>
+ <node name="related">
+ <properties>
+ <help>Global firewall policy for packets part of a related connection</help>
+ </properties>
+ <children>
+ #include <include/firewall/action-accept-drop-reject.xml.i>
+ #include <include/firewall/log.xml.i>
+ #include <include/firewall/rule-log-level.xml.i>
+ </children>
+ </node>
+ </children>
+ </node>
<leafNode name="syn-cookies">
<properties>
<help>Policy for using TCP SYN cookies with IPv4</help>
diff --git a/python/vyos/template.py b/python/vyos/template.py
index 1e683b605..f79c7545e 100644
--- a/python/vyos/template.py
+++ b/python/vyos/template.py
@@ -602,7 +602,7 @@ def nft_default_rule(fw_conf, fw_name, family):
def nft_state_policy(conf, state):
out = [f'ct state {state}']
- if 'log' in conf and 'enable' in conf['log']:
+ if 'log' in conf:
log_state = state[:3].upper()
log_action = (conf['action'] if 'action' in conf else 'accept')[:1].upper()
out.append(f'log prefix "[STATE-POLICY-{log_state}-{log_action}]"')
diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py
index cffa1c0be..066ed707b 100755
--- a/smoketest/scripts/cli/test_firewall.py
+++ b/smoketest/scripts/cli/test_firewall.py
@@ -408,6 +408,10 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
name = 'v6-smoketest'
interface = 'eth0'
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'related', 'action', 'accept'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'invalid', 'action', 'drop'])
+
self.cli_set(['firewall', 'ipv6', 'name', name, 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv6', 'name', name, 'enable-default-log'])
@@ -452,7 +456,12 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
['log prefix "[ipv6-OUT-filter-default-D]"','OUT-filter default-action drop', 'drop'],
[f'chain NAME6_{name}'],
['saddr 2002::1', 'daddr 2002::1:1', 'log prefix "[ipv6-NAM-v6-smoketest-1-A]" log level crit', 'accept'],
- [f'"{name} default-action drop"', f'log prefix "[ipv6-{name}-default-D]"', 'drop']
+ [f'"{name} default-action drop"', f'log prefix "[ipv6-{name}-default-D]"', 'drop'],
+ ['jump VYOS_STATE_POLICY6'],
+ ['chain VYOS_STATE_POLICY6'],
+ ['ct state established', 'accept'],
+ ['ct state invalid', 'drop'],
+ ['ct state related', 'accept']
]
self.verify_nftables(nftables_search, 'ip6 vyos_filter')
@@ -535,6 +544,10 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
name = 'smoketest-state'
interface = 'eth0'
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'related', 'action', 'accept'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'invalid', 'action', 'drop'])
+
self.cli_set(['firewall', 'ipv4', 'name', name, 'default-action', 'drop'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'action', 'accept'])
self.cli_set(['firewall', 'ipv4', 'name', name, 'rule', '1', 'state', 'established'])
@@ -561,7 +574,12 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
['ct state new', 'ct status dnat', 'accept'],
['ct state { established, new }', 'ct status snat', 'accept'],
['ct state related', 'ct helper { "ftp", "pptp" }', 'accept'],
- ['drop', f'comment "{name} default-action drop"']
+ ['drop', f'comment "{name} default-action drop"'],
+ ['jump VYOS_STATE_POLICY'],
+ ['chain VYOS_STATE_POLICY'],
+ ['ct state established', 'accept'],
+ ['ct state invalid', 'drop'],
+ ['ct state related', 'accept']
]
self.verify_nftables(nftables_search, 'ip vyos_filter')
@@ -657,6 +675,10 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
self.cli_set(['firewall', 'zone', 'smoketest-eth0', 'from', 'smoketest-local', 'firewall', 'name', 'smoketest'])
self.cli_set(['firewall', 'zone', 'smoketest-local', 'local-zone'])
self.cli_set(['firewall', 'zone', 'smoketest-local', 'from', 'smoketest-eth0', 'firewall', 'name', 'smoketest'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'action', 'accept'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'established', 'log'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'related', 'action', 'accept'])
+ self.cli_set(['firewall', 'global-options', 'state-policy', 'invalid', 'action', 'drop'])
self.cli_commit()
@@ -674,7 +696,12 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
['jump VZONE_smoketest-local_IN'],
['jump VZONE_smoketest-local_OUT'],
['iifname "eth0"', 'jump NAME_smoketest'],
- ['oifname "eth0"', 'jump NAME_smoketest']
+ ['oifname "eth0"', 'jump NAME_smoketest'],
+ ['jump VYOS_STATE_POLICY'],
+ ['chain VYOS_STATE_POLICY'],
+ ['ct state established', 'log prefix "[STATE-POLICY-EST-A]"', 'accept'],
+ ['ct state invalid', 'drop'],
+ ['ct state related', 'accept']
]
nftables_output = cmd('sudo nft list table ip vyos_filter')
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 07:37:09 +0000