From c2ff9aa158b81fa66ce9c810e891ad25d4a7f14b Mon Sep 17 00:00:00 2001 From: sarthurdev <965089+sarthurdev@users.noreply.github.com> Date: Thu, 27 Oct 2022 22:37:42 +0200 Subject: wireguard: T4774: Prevent duplicate peer public keys --- smoketest/scripts/cli/test_interfaces_wireguard.py | 10 ++++++++-- src/conf_mode/interfaces-wireguard.py | 7 +++++++ 2 files changed, 15 insertions(+), 2 deletions(-) diff --git a/smoketest/scripts/cli/test_interfaces_wireguard.py b/smoketest/scripts/cli/test_interfaces_wireguard.py index f3e9670f7..14fc8d109 100755 --- a/smoketest/scripts/cli/test_interfaces_wireguard.py +++ b/smoketest/scripts/cli/test_interfaces_wireguard.py @@ -62,10 +62,10 @@ class WireGuardInterfaceTest(VyOSUnitTestSHIM.TestCase): self.assertTrue(os.path.isdir(f'/sys/class/net/{intf}')) - def test_wireguard_add_remove_peer(self): # T2939: Create WireGuard interfaces with associated peers. # Remove one of the configured peers. + # T4774: Test prevention of duplicate peer public keys interface = 'wg0' port = '12345' privkey = '6ISOkASm6VhHOOSz/5iIxw+Q9adq9zA17iMM4X40dlc=' @@ -80,11 +80,17 @@ class WireGuardInterfaceTest(VyOSUnitTestSHIM.TestCase): self.cli_set(base_path + [interface, 'peer', 'PEER01', 'allowed-ips', '10.205.212.10/32']) self.cli_set(base_path + [interface, 'peer', 'PEER01', 'address', '192.0.2.1']) - self.cli_set(base_path + [interface, 'peer', 'PEER02', 'public-key', pubkey_2]) + self.cli_set(base_path + [interface, 'peer', 'PEER02', 'public-key', pubkey_1]) self.cli_set(base_path + [interface, 'peer', 'PEER02', 'port', port]) self.cli_set(base_path + [interface, 'peer', 'PEER02', 'allowed-ips', '10.205.212.11/32']) self.cli_set(base_path + [interface, 'peer', 'PEER02', 'address', '192.0.2.2']) + # Duplicate pubkey_1 + with self.assertRaises(ConfigSessionError): + self.cli_commit() + + self.cli_set(base_path + [interface, 'peer', 'PEER02', 'public-key', pubkey_2]) + # Commit peers self.cli_commit() diff --git a/src/conf_mode/interfaces-wireguard.py b/src/conf_mode/interfaces-wireguard.py index 8d738f55e..762bad94f 100755 --- a/src/conf_mode/interfaces-wireguard.py +++ b/src/conf_mode/interfaces-wireguard.py @@ -87,6 +87,8 @@ def verify(wireguard): 'cannot be used for the interface!') # run checks on individual configured WireGuard peer + public_keys = [] + for tmp in wireguard['peer']: peer = wireguard['peer'][tmp] @@ -100,6 +102,11 @@ def verify(wireguard): raise ConfigError('Both Wireguard port and address must be defined ' f'for peer "{tmp}" if either one of them is set!') + if peer['public_key'] in public_keys: + raise ConfigError(f'Duplicate public-key defined on peer "{tmp}"') + + public_keys.append(peer['public_key']) + def apply(wireguard): tmp = WireGuardIf(wireguard['ifname']) if 'deleted' in wireguard: -- cgit v1.2.3