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authorChristian Poessinger <christian@poessinger.com>2022-01-17 18:08:34 +0100
committerGitHub <noreply@github.com>2022-01-17 18:08:34 +0100
commit9fb2e1432209f907d6e5e3ce748da243c85f2851 (patch)
tree0f3607ccd75cfad67f25ba06b62bdaa1232874fb
parent7e731c0ef503334eaab2bfd723163a9749d64da2 (diff)
parent53c2b62dda5bcd1f605a8b9ea438f0f76e366e36 (diff)
downloadvyos-1x-9fb2e1432209f907d6e5e3ce748da243c85f2851.tar.gz
vyos-1x-9fb2e1432209f907d6e5e3ce748da243c85f2851.zip
Merge pull request #1174 from sarthurdev/firewall
firewall: T4178: T3873: tcp flags syntax refactor, intra-zone-filtering fix
-rw-r--r--data/templates/zone_policy/nftables.tmpl6
-rw-r--r--interface-definitions/include/firewall/common-rule.xml.i51
-rw-r--r--interface-definitions/include/firewall/tcp-flags.xml.i119
-rw-r--r--interface-definitions/include/policy/route-common-rule-ipv6.xml.i51
-rw-r--r--interface-definitions/include/policy/route-common-rule.xml.i51
-rw-r--r--python/vyos/firewall.py10
-rw-r--r--smoketest/configs/dialup-router-medium-vpn9
-rwxr-xr-xsmoketest/scripts/cli/test_firewall.py16
-rwxr-xr-xsmoketest/scripts/cli/test_policy_route.py6
-rwxr-xr-xsrc/conf_mode/firewall.py12
-rwxr-xr-xsrc/conf_mode/policy-route.py14
-rwxr-xr-xsrc/migration-scripts/firewall/6-to-721
-rwxr-xr-xsrc/migration-scripts/policy/1-to-219
-rwxr-xr-xsrc/validators/port-range20
-rwxr-xr-xsrc/validators/tcp-flag14
15 files changed, 237 insertions, 182 deletions
diff --git a/data/templates/zone_policy/nftables.tmpl b/data/templates/zone_policy/nftables.tmpl
index fae6e8c4f..e59208a0d 100644
--- a/data/templates/zone_policy/nftables.tmpl
+++ b/data/templates/zone_policy/nftables.tmpl
@@ -29,6 +29,9 @@ table ip filter {
{% else %}
chain VZONE_{{ zone_name }} {
iifname { {{ zone_conf.interface | join(",") }} } counter {{ zone_conf | nft_intra_zone_action(ipv6=False) }}
+{% if zone_conf.intra_zone_filtering is defined %}
+ iifname { {{ zone_conf.interface | join(",") }} } counter return
+{% endif %}
{% for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall.name is defined %}
{% if zone[from_zone].local_zone is not defined %}
iifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.name }}
@@ -63,6 +66,9 @@ table ip6 filter {
{% else %}
chain VZONE6_{{ zone_name }} {
iifname { {{ zone_conf.interface | join(",") }} } counter {{ zone_conf | nft_intra_zone_action(ipv6=True) }}
+{% if zone_conf.intra_zone_filtering is defined %}
+ iifname { {{ zone_conf.interface | join(",") }} } counter return
+{% endif %}
{% for from_zone, from_conf in zone_conf.from.items() if from_conf.firewall.ipv6_name is defined %}
{% if zone[from_zone].local_zone is not defined %}
iifname { {{ zone[from_zone].interface | join(",") }} } counter jump {{ from_conf.firewall.ipv6_name }}
diff --git a/interface-definitions/include/firewall/common-rule.xml.i b/interface-definitions/include/firewall/common-rule.xml.i
index 6e8203c88..5ffbd639c 100644
--- a/interface-definitions/include/firewall/common-rule.xml.i
+++ b/interface-definitions/include/firewall/common-rule.xml.i
@@ -264,56 +264,7 @@
</leafNode>
</children>
</node>
-<node name="tcp">
- <properties>
- <help>TCP flags to match</help>
- </properties>
- <children>
- <leafNode name="flags">
- <properties>
- <help>TCP flags to match</help>
- <valueHelp>
- <format>txt</format>
- <description>Multiple comma-separated flags</description>
- </valueHelp>
- <valueHelp>
- <format>syn</format>
- <description>Syncronise flag</description>
- </valueHelp>
- <valueHelp>
- <format>ack</format>
- <description>Acknowledge flag</description>
- </valueHelp>
- <valueHelp>
- <format>fin</format>
- <description>Finish flag</description>
- </valueHelp>
- <valueHelp>
- <format>rst</format>
- <description>Reset flag</description>
- </valueHelp>
- <valueHelp>
- <format>urg</format>
- <description>Urgent flag</description>
- </valueHelp>
- <valueHelp>
- <format>psh</format>
- <description>Push flag</description>
- </valueHelp>
- <valueHelp>
- <format> </format>
- <description>\n When specifying more than one flag, flags should be comma-separated.\n For example: value of 'SYN,!ACK,!FIN,!RST' will only match packets with\n the SYN flag set, and the ACK, FIN and RST flags unset</description>
- </valueHelp>
- <completionHelp>
- <list>syn ack fin rst urg psh</list>
- </completionHelp>
- <constraint>
- <validator name="tcp-flag"/>
- </constraint>
- </properties>
- </leafNode>
- </children>
-</node>
+#include <include/firewall/tcp-flags.xml.i>
<node name="time">
<properties>
<help>Time to match rule</help>
diff --git a/interface-definitions/include/firewall/tcp-flags.xml.i b/interface-definitions/include/firewall/tcp-flags.xml.i
new file mode 100644
index 000000000..b99896687
--- /dev/null
+++ b/interface-definitions/include/firewall/tcp-flags.xml.i
@@ -0,0 +1,119 @@
+<!-- include start from firewall/tcp-flags.xml.i -->
+<node name="tcp">
+ <properties>
+ <help>TCP flags to match</help>
+ </properties>
+ <children>
+ <node name="flags">
+ <properties>
+ <help>TCP flags to match</help>
+ </properties>
+ <children>
+ <leafNode name="syn">
+ <properties>
+ <help>Synchronise flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="ack">
+ <properties>
+ <help>Acknowledge flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="fin">
+ <properties>
+ <help>Finish flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="rst">
+ <properties>
+ <help>Reset flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="urg">
+ <properties>
+ <help>Urgent flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="psh">
+ <properties>
+ <help>Push flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="ecn">
+ <properties>
+ <help>Explicit Congestion Notification flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="cwr">
+ <properties>
+ <help>Congestion Window Reduced flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <node name="not">
+ <properties>
+ <help>Match flags not set</help>
+ </properties>
+ <children>
+ <leafNode name="syn">
+ <properties>
+ <help>Synchronise flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="ack">
+ <properties>
+ <help>Acknowledge flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="fin">
+ <properties>
+ <help>Finish flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="rst">
+ <properties>
+ <help>Reset flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="urg">
+ <properties>
+ <help>Urgent flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="psh">
+ <properties>
+ <help>Push flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="ecn">
+ <properties>
+ <help>Explicit Congestion Notification flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ <leafNode name="cwr">
+ <properties>
+ <help>Congestion Window Reduced flag</help>
+ <valueless/>
+ </properties>
+ </leafNode>
+ </children>
+ </node>
+ </children>
+ </node>
+ </children>
+</node>
+<!-- include end -->
diff --git a/interface-definitions/include/policy/route-common-rule-ipv6.xml.i b/interface-definitions/include/policy/route-common-rule-ipv6.xml.i
index b8fee4b7b..735edbd48 100644
--- a/interface-definitions/include/policy/route-common-rule-ipv6.xml.i
+++ b/interface-definitions/include/policy/route-common-rule-ipv6.xml.i
@@ -320,56 +320,7 @@
</leafNode>
</children>
</node>
-<node name="tcp">
- <properties>
- <help>TCP flags to match</help>
- </properties>
- <children>
- <leafNode name="flags">
- <properties>
- <help>TCP flags to match</help>
- <valueHelp>
- <format>txt</format>
- <description>Multiple comma-separated flags</description>
- </valueHelp>
- <valueHelp>
- <format>syn</format>
- <description>Syncronise flag</description>
- </valueHelp>
- <valueHelp>
- <format>ack</format>
- <description>Acknowledge flag</description>
- </valueHelp>
- <valueHelp>
- <format>fin</format>
- <description>Finish flag</description>
- </valueHelp>
- <valueHelp>
- <format>rst</format>
- <description>Reset flag</description>
- </valueHelp>
- <valueHelp>
- <format>urg</format>
- <description>Urgent flag</description>
- </valueHelp>
- <valueHelp>
- <format>psh</format>
- <description>Push flag</description>
- </valueHelp>
- <valueHelp>
- <format> </format>
- <description>\n When specifying more than one flag, flags should be comma-separated.\n For example: value of 'SYN,!ACK,!FIN,!RST' will only match packets with\n the SYN flag set, and the ACK, FIN and RST flags unset</description>
- </valueHelp>
- <completionHelp>
- <list>syn ack fin rst urg psh</list>
- </completionHelp>
- <constraint>
- <validator name="tcp-flag"/>
- </constraint>
- </properties>
- </leafNode>
- </children>
-</node>
+#include <include/firewall/tcp-flags.xml.i>
<node name="time">
<properties>
<help>Time to match rule</help>
diff --git a/interface-definitions/include/policy/route-common-rule.xml.i b/interface-definitions/include/policy/route-common-rule.xml.i
index 17b47474d..4452f78fc 100644
--- a/interface-definitions/include/policy/route-common-rule.xml.i
+++ b/interface-definitions/include/policy/route-common-rule.xml.i
@@ -320,56 +320,7 @@
</leafNode>
</children>
</node>
-<node name="tcp">
- <properties>
- <help>TCP flags to match</help>
- </properties>
- <children>
- <leafNode name="flags">
- <properties>
- <help>TCP flags to match</help>
- <valueHelp>
- <format>txt</format>
- <description>Multiple comma-separated flags</description>
- </valueHelp>
- <valueHelp>
- <format>syn</format>
- <description>Syncronise flag</description>
- </valueHelp>
- <valueHelp>
- <format>ack</format>
- <description>Acknowledge flag</description>
- </valueHelp>
- <valueHelp>
- <format>fin</format>
- <description>Finish flag</description>
- </valueHelp>
- <valueHelp>
- <format>rst</format>
- <description>Reset flag</description>
- </valueHelp>
- <valueHelp>
- <format>urg</format>
- <description>Urgent flag</description>
- </valueHelp>
- <valueHelp>
- <format>psh</format>
- <description>Push flag</description>
- </valueHelp>
- <valueHelp>
- <format> </format>
- <description>\n When specifying more than one flag, flags should be comma-separated.\n For example: value of 'SYN,!ACK,!FIN,!RST' will only match packets with\n the SYN flag set, and the ACK, FIN and RST flags unset</description>
- </valueHelp>
- <completionHelp>
- <list>syn ack fin rst urg psh</list>
- </completionHelp>
- <constraint>
- <validator name="tcp-flag"/>
- </constraint>
- </properties>
- </leafNode>
- </children>
-</node>
+#include <include/firewall/tcp-flags.xml.i>
<node name="time">
<properties>
<help>Time to match rule</help>
diff --git a/python/vyos/firewall.py b/python/vyos/firewall.py
index acde9f913..ad84393df 100644
--- a/python/vyos/firewall.py
+++ b/python/vyos/firewall.py
@@ -185,14 +185,8 @@ def parse_rule(rule_conf, fw_name, rule_id, ip_name):
return " ".join(output)
def parse_tcp_flags(flags):
- all_flags = []
- include = []
- for flag in flags.split(","):
- if flag[0] == '!':
- flag = flag[1:].lower()
- else:
- include.append(flag.lower())
- all_flags.append(flag.lower())
+ include = [flag for flag in flags if flag != 'not']
+ all_flags = include + [flag for flag in flags['not']] if 'not' in flags else []
return f'tcp flags & ({"|".join(all_flags)}) == {"|".join(include)}'
def parse_time(time):
diff --git a/smoketest/configs/dialup-router-medium-vpn b/smoketest/configs/dialup-router-medium-vpn
index 7ca540b66..63d955738 100644
--- a/smoketest/configs/dialup-router-medium-vpn
+++ b/smoketest/configs/dialup-router-medium-vpn
@@ -6,6 +6,15 @@ firewall {
ipv6-src-route disable
ip-src-route disable
log-martians enable
+ name test_tcp_flags {
+ rule 1 {
+ action drop
+ protocol tcp
+ tcp {
+ flags SYN,ACK,!RST,!FIN
+ }
+ }
+ }
options {
interface vtun0 {
adjust-mss 1380
diff --git a/smoketest/scripts/cli/test_firewall.py b/smoketest/scripts/cli/test_firewall.py
index 2b3b354ba..c70743a9f 100755
--- a/smoketest/scripts/cli/test_firewall.py
+++ b/smoketest/scripts/cli/test_firewall.py
@@ -53,7 +53,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'source', 'group', 'network-group', 'smoketest_network'])
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'destination', 'address', '172.16.10.10'])
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'destination', 'group', 'port-group', 'smoketest_port'])
- self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'protocol', 'tcp'])
+ self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'protocol', 'tcp_udp'])
self.cli_set(['interfaces', 'ethernet', 'eth0', 'firewall', 'in', 'name', 'smoketest'])
@@ -61,7 +61,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
nftables_search = [
['iifname "eth0"', 'jump smoketest'],
- ['ip saddr { 172.16.99.0/24 }', 'ip daddr 172.16.10.10', 'tcp dport { 53, 123 }', 'return'],
+ ['ip saddr { 172.16.99.0/24 }', 'ip daddr 172.16.10.10', 'th dport { 53, 123 }', 'return'],
]
nftables_output = cmd('sudo nft list table ip filter')
@@ -72,7 +72,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
if all(item in line for item in search):
matched = True
break
- self.assertTrue(matched)
+ self.assertTrue(matched, msg=search)
def test_basic_rules(self):
self.cli_set(['firewall', 'name', 'smoketest', 'default-action', 'drop'])
@@ -80,8 +80,10 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'source', 'address', '172.16.20.10'])
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '1', 'destination', 'address', '172.16.10.10'])
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'action', 'reject'])
- self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'protocol', 'tcp_udp'])
+ self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'protocol', 'tcp'])
self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'destination', 'port', '8888'])
+ self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'tcp', 'flags', 'syn'])
+ self.cli_set(['firewall', 'name', 'smoketest', 'rule', '2', 'tcp', 'flags', 'not', 'ack'])
self.cli_set(['interfaces', 'ethernet', 'eth0', 'firewall', 'in', 'name', 'smoketest'])
@@ -90,7 +92,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
nftables_search = [
['iifname "eth0"', 'jump smoketest'],
['saddr 172.16.20.10', 'daddr 172.16.10.10', 'return'],
- ['meta l4proto { tcp, udp }', 'th dport { 8888 }', 'reject'],
+ ['tcp flags & (syn | ack) == syn', 'tcp dport { 8888 }', 'reject'],
['smoketest default-action', 'drop']
]
@@ -102,7 +104,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
if all(item in line for item in search):
matched = True
break
- self.assertTrue(matched)
+ self.assertTrue(matched, msg=search)
def test_basic_rules_ipv6(self):
self.cli_set(['firewall', 'ipv6-name', 'v6-smoketest', 'default-action', 'drop'])
@@ -132,7 +134,7 @@ class TestFirewall(VyOSUnitTestSHIM.TestCase):
if all(item in line for item in search):
matched = True
break
- self.assertTrue(matched)
+ self.assertTrue(matched, msg=search)
def test_state_policy(self):
self.cli_set(['firewall', 'state-policy', 'established', 'action', 'accept'])
diff --git a/smoketest/scripts/cli/test_policy_route.py b/smoketest/scripts/cli/test_policy_route.py
index 4463a2255..9035f0832 100755
--- a/smoketest/scripts/cli/test_policy_route.py
+++ b/smoketest/scripts/cli/test_policy_route.py
@@ -63,8 +63,10 @@ class TestPolicyRoute(VyOSUnitTestSHIM.TestCase):
self.assertTrue(matched)
def test_pbr_table(self):
- self.cli_set(['policy', 'route', 'smoketest', 'rule', '1', 'protocol', 'tcp_udp'])
+ self.cli_set(['policy', 'route', 'smoketest', 'rule', '1', 'protocol', 'tcp'])
self.cli_set(['policy', 'route', 'smoketest', 'rule', '1', 'destination', 'port', '8888'])
+ self.cli_set(['policy', 'route', 'smoketest', 'rule', '1', 'tcp', 'flags', 'syn'])
+ self.cli_set(['policy', 'route', 'smoketest', 'rule', '1', 'tcp', 'flags', 'not', 'ack'])
self.cli_set(['policy', 'route', 'smoketest', 'rule', '1', 'set', 'table', table_id])
self.cli_set(['policy', 'route6', 'smoketest6', 'rule', '1', 'protocol', 'tcp_udp'])
self.cli_set(['policy', 'route6', 'smoketest6', 'rule', '1', 'destination', 'port', '8888'])
@@ -81,7 +83,7 @@ class TestPolicyRoute(VyOSUnitTestSHIM.TestCase):
nftables_search = [
['iifname "eth0"', 'jump VYOS_PBR_smoketest'],
- ['meta l4proto { tcp, udp }', 'th dport { 8888 }', 'meta mark set ' + mark_hex]
+ ['tcp flags & (syn | ack) == syn', 'tcp dport { 8888 }', 'meta mark set ' + mark_hex]
]
nftables_output = cmd('sudo nft list table ip mangle')
diff --git a/src/conf_mode/firewall.py b/src/conf_mode/firewall.py
index 853470fd8..906d477b0 100755
--- a/src/conf_mode/firewall.py
+++ b/src/conf_mode/firewall.py
@@ -142,8 +142,16 @@ def verify_rule(firewall, rule_conf, ipv6):
if not {'count', 'time'} <= set(rule_conf['recent']):
raise ConfigError('Recent "count" and "time" values must be defined')
- if dict_search_args(rule_conf, 'tcp', 'flags') and dict_search_args(rule_conf, 'protocol') != 'tcp':
- raise ConfigError('Protocol must be tcp when specifying tcp flags')
+ tcp_flags = dict_search_args(rule_conf, 'tcp', 'flags')
+ if tcp_flags:
+ if dict_search_args(rule_conf, 'protocol') != 'tcp':
+ raise ConfigError('Protocol must be tcp when specifying tcp flags')
+
+ not_flags = dict_search_args(rule_conf, 'tcp', 'flags', 'not')
+ if not_flags:
+ duplicates = [flag for flag in tcp_flags if flag in not_flags]
+ if duplicates:
+ raise ConfigError(f'Cannot match a tcp flag as set and not set')
for side in ['destination', 'source']:
if side in rule_conf:
diff --git a/src/conf_mode/policy-route.py b/src/conf_mode/policy-route.py
index 30597ef4e..eb13788dd 100755
--- a/src/conf_mode/policy-route.py
+++ b/src/conf_mode/policy-route.py
@@ -97,11 +97,19 @@ def verify_rule(policy, name, rule_conf, ipv6):
if 'set' in rule_conf:
if 'tcp_mss' in rule_conf['set']:
tcp_flags = dict_search_args(rule_conf, 'tcp', 'flags')
- if not tcp_flags or 'SYN' not in tcp_flags.split(","):
+ if not tcp_flags or 'syn' not in tcp_flags:
raise ConfigError(f'{name} rule {rule_id}: TCP SYN flag must be set to modify TCP-MSS')
- if dict_search_args(rule_conf, 'tcp', 'flags') and dict_search_args(rule_conf, 'protocol') != 'tcp':
- raise ConfigError(f'{name} rule {rule_id}: TCP flags can only be set if protocol is set to TCP')
+ tcp_flags = dict_search_args(rule_conf, 'tcp', 'flags')
+ if tcp_flags:
+ if dict_search_args(rule_conf, 'protocol') != 'tcp':
+ raise ConfigError('Protocol must be tcp when specifying tcp flags')
+
+ not_flags = dict_search_args(rule_conf, 'tcp', 'flags', 'not')
+ if not_flags:
+ duplicates = [flag for flag in tcp_flags if flag in not_flags]
+ if duplicates:
+ raise ConfigError(f'Cannot match a tcp flag as set and not set')
for side in ['destination', 'source']:
if side in rule_conf:
diff --git a/src/migration-scripts/firewall/6-to-7 b/src/migration-scripts/firewall/6-to-7
index 4a4097d56..bc0b19325 100755
--- a/src/migration-scripts/firewall/6-to-7
+++ b/src/migration-scripts/firewall/6-to-7
@@ -17,6 +17,7 @@
# T2199: Remove unavailable nodes due to XML/Python implementation using nftables
# monthdays: nftables does not have a monthdays equivalent
# utc: nftables userspace uses localtime and calculates the UTC offset automatically
+# T4178: Update tcp flags to use multi value node
from sys import argv
from sys import exit
@@ -45,6 +46,7 @@ if config.exists(base + ['name']):
if config.exists(base + ['name', name, 'rule']):
for rule in config.list_nodes(base + ['name', name, 'rule']):
rule_time = base + ['name', name, 'rule', rule, 'time']
+ rule_tcp_flags = base + ['name', name, 'rule', rule, 'tcp', 'flags']
if config.exists(rule_time + ['monthdays']):
config.delete(rule_time + ['monthdays'])
@@ -52,11 +54,21 @@ if config.exists(base + ['name']):
if config.exists(rule_time + ['utc']):
config.delete(rule_time + ['utc'])
+ if config.exists(rule_tcp_flags):
+ tmp = config.return_value(rule_tcp_flags)
+ config.delete(rule_tcp_flags)
+ for flag in tmp.split(","):
+ if flag[0] == '!':
+ config.set(rule_tcp_flags + ['not', flag[1:].lower()])
+ else:
+ config.set(rule_tcp_flags + [flag.lower()])
+
if config.exists(base + ['ipv6-name']):
for name in config.list_nodes(base + ['ipv6-name']):
if config.exists(base + ['ipv6-name', name, 'rule']):
for rule in config.list_nodes(base + ['ipv6-name', name, 'rule']):
rule_time = base + ['ipv6-name', name, 'rule', rule, 'time']
+ rule_tcp_flags = base + ['ipv6-name', name, 'rule', rule, 'tcp', 'flags']
if config.exists(rule_time + ['monthdays']):
config.delete(rule_time + ['monthdays'])
@@ -64,6 +76,15 @@ if config.exists(base + ['ipv6-name']):
if config.exists(rule_time + ['utc']):
config.delete(rule_time + ['utc'])
+ if config.exists(rule_tcp_flags):
+ tmp = config.return_value(rule_tcp_flags)
+ config.delete(rule_tcp_flags)
+ for flag in tmp.split(","):
+ if flag[0] == '!':
+ config.set(rule_tcp_flags + ['not', flag[1:].lower()])
+ else:
+ config.set(rule_tcp_flags + [flag.lower()])
+
try:
with open(file_name, 'w') as f:
f.write(config.to_string())
diff --git a/src/migration-scripts/policy/1-to-2 b/src/migration-scripts/policy/1-to-2
index 7ffceef22..eebbf9d41 100755
--- a/src/migration-scripts/policy/1-to-2
+++ b/src/migration-scripts/policy/1-to-2
@@ -16,6 +16,7 @@
# T4170: rename "policy ipv6-route" to "policy route6" to match common
# IPv4/IPv6 schema
+# T4178: Update tcp flags to use multi value node
from sys import argv
from sys import exit
@@ -41,6 +42,24 @@ if not config.exists(base):
config.rename(base, 'route6')
config.set_tag(['policy', 'route6'])
+for route in ['route', 'route6']:
+ route_path = ['policy', route]
+ if config.exists(route_path):
+ for name in config.list_nodes(route_path):
+ if config.exists(route_path + [name, 'rule']):
+ for rule in config.list_nodes(route_path + [name, 'rule']):
+ rule_tcp_flags = route_path + [name, 'rule', rule, 'tcp', 'flags']
+
+ if config.exists(rule_tcp_flags):
+ tmp = config.return_value(rule_tcp_flags)
+ config.delete(rule_tcp_flags)
+ for flag in tmp.split(","):
+ for flag in tmp.split(","):
+ if flag[0] == '!':
+ config.set(rule_tcp_flags + ['not', flag[1:].lower()])
+ else:
+ config.set(rule_tcp_flags + [flag.lower()])
+
if config.exists(['interfaces']):
def if_policy_rename(config, path):
if config.exists(path + ['policy', 'ipv6-route']):
diff --git a/src/validators/port-range b/src/validators/port-range
index 6c01048f0..5468000a7 100755
--- a/src/validators/port-range
+++ b/src/validators/port-range
@@ -3,6 +3,19 @@
import sys
import re
+from vyos.util import read_file
+
+services_file = '/etc/services'
+
+def get_services():
+ names = []
+ service_data = read_file(services_file, "")
+ for line in service_data.split("\n"):
+ if not line or line[0] == '#':
+ continue
+ names.append(line.split(None, 1)[0])
+ return names
+
def error(port_range):
print(f'Error: {port_range} is not a valid port or port range')
sys.exit(1)
@@ -16,8 +29,11 @@ if __name__ == '__main__':
error(port_range)
if int(port_1) > int(port_2):
error(port_range)
- elif not port_range.isnumeric() or int(port_range) not in range(1, 65536):
- error(port_range)
+ elif port_range.isnumeric() and int(port_range) not in range(1, 65536):
+ error(port_range)
+ elif not port_range.isnumeric() and port_range not in get_services():
+ print(f'Error: {port_range} is not a valid service name')
+ sys.exit(1)
else:
sys.exit(2)
diff --git a/src/validators/tcp-flag b/src/validators/tcp-flag
index 86ebec189..1496b904a 100755
--- a/src/validators/tcp-flag
+++ b/src/validators/tcp-flag
@@ -5,14 +5,12 @@ import re
if __name__ == '__main__':
if len(sys.argv)>1:
- flags = sys.argv[1].split(",")
-
- for flag in flags:
- if flag and flag[0] == '!':
- flag = flag[1:]
- if flag.lower() not in ['syn', 'ack', 'rst', 'fin', 'urg', 'psh']:
- print(f'Error: {flag} is not a valid TCP flag')
- sys.exit(1)
+ flag = sys.argv[1]
+ if flag and flag[0] == '!':
+ flag = flag[1:]
+ if flag not in ['syn', 'ack', 'rst', 'fin', 'urg', 'psh', 'ecn', 'cwr']:
+ print(f'Error: {flag} is not a valid TCP flag')
+ sys.exit(1)
else:
sys.exit(2)