From fb984a3fc56de27765c7232cb672b982d2e3eea6 Mon Sep 17 00:00:00 2001
From: sarthurdev <965089+sarthurdev@users.noreply.github.com>
Date: Wed, 15 Jun 2022 22:43:34 +0200
Subject: firewall: T4435: Verify parent config applied successfully

---
 src/conf_mode/firewall-interface.py     | 11 +++++++++++
 src/conf_mode/policy-route-interface.py | 12 ++++++++++++
 2 files changed, 23 insertions(+)

(limited to 'src/conf_mode')

diff --git a/src/conf_mode/firewall-interface.py b/src/conf_mode/firewall-interface.py
index 9a5d278e9..ab1c69259 100755
--- a/src/conf_mode/firewall-interface.py
+++ b/src/conf_mode/firewall-interface.py
@@ -64,6 +64,11 @@ def get_config(config=None):
 
     return if_firewall
 
+def verify_chain(table, chain):
+    # Verify firewall applied
+    code = run(f'nft list chain {table} {chain}')
+    return code == 0
+
 def verify(if_firewall):
     # bail out early - looks like removal from running config
     if not if_firewall:
@@ -80,6 +85,9 @@ def verify(if_firewall):
                 if name not in if_firewall['firewall']['name']:
                     raise ConfigError(f'Invalid firewall name "{name}"')
 
+                if not verify_chain('ip filter', f'{NAME_PREFIX}{name}'):
+                    raise ConfigError('Firewall did not apply')
+
             if 'ipv6_name' in if_firewall[direction]:
                 name = if_firewall[direction]['ipv6_name']
 
@@ -89,6 +97,9 @@ def verify(if_firewall):
                 if name not in if_firewall['firewall']['ipv6_name']:
                     raise ConfigError(f'Invalid firewall ipv6-name "{name}"')
 
+                if not verify_chain('ip6 filter', f'{NAME6_PREFIX}{name}'):
+                    raise ConfigError('Firewall did not apply')
+
     return None
 
 def generate(if_firewall):
diff --git a/src/conf_mode/policy-route-interface.py b/src/conf_mode/policy-route-interface.py
index 1108aebe6..58c5fd93d 100755
--- a/src/conf_mode/policy-route-interface.py
+++ b/src/conf_mode/policy-route-interface.py
@@ -24,6 +24,7 @@ from vyos.config import Config
 from vyos.ifconfig import Section
 from vyos.template import render
 from vyos.util import cmd
+from vyos.util import run
 from vyos import ConfigError
 from vyos import airbag
 airbag.enable()
@@ -47,6 +48,11 @@ def get_config(config=None):
 
     return if_policy
 
+def verify_chain(table, chain):
+    # Verify policy route applied
+    code = run(f'nft list chain {table} {chain}')
+    return code == 0
+
 def verify(if_policy):
     # bail out early - looks like removal from running config
     if not if_policy:
@@ -62,6 +68,12 @@ def verify(if_policy):
             if route_name not in if_policy['policy'][route]:
                 raise ConfigError(f'Invalid policy route name "{name}"')
 
+            nft_prefix = 'VYOS_PBR6_' if route == 'route6' else 'VYOS_PBR_'
+            nft_table = 'ip6 mangle' if route == 'route6' else 'ip mangle'
+
+            if not verify_chain(nft_table, nft_prefix + route_name):
+                raise ConfigError('Policy route did not apply')
+
     return None
 
 def generate(if_policy):
-- 
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