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|
use super::helpers;
use super::helpers::{connect_and_wait, get_tunnel_state, send_guest_probes};
use super::{Error, TestContext};
use crate::assert_tunnel_state;
use crate::vm::network::DUMMY_LAN_INTERFACE_IP;
use mullvad_management_interface::ManagementServiceClient;
use mullvad_types::states::TunnelState;
use std::net::{IpAddr, SocketAddr};
use test_macro::test_function;
use test_rpc::ServiceClient;
/// Verify that traffic to private IPs is blocked when
/// "local network sharing" is disabled, but not blocked
/// when it is enabled.
/// It only checks whether outgoing UDP, TCP, and ICMP is
/// blocked for a single arbitrary private IP and port.
#[test_function]
pub async fn test_lan(
_: TestContext,
rpc: ServiceClient,
mut mullvad_client: ManagementServiceClient,
) -> Result<(), Error> {
let lan_destination = SocketAddr::new(IpAddr::V4(DUMMY_LAN_INTERFACE_IP), 1234);
//
// Connect
//
connect_and_wait(&mut mullvad_client).await?;
//
// Disable LAN sharing
//
log::info!("LAN sharing: disabled");
mullvad_client
.set_allow_lan(false)
.await
.expect("failed to disable LAN sharing");
//
// Ensure LAN is not reachable
//
log::info!("Test whether outgoing LAN traffic is blocked");
let default_interface = rpc.get_default_interface().await?;
let detected_probes =
send_guest_probes(rpc.clone(), default_interface.clone(), lan_destination).await?;
assert!(
detected_probes.none(),
"observed unexpected outgoing LAN packets: {detected_probes:?}"
);
//
// Enable LAN sharing
//
log::info!("LAN sharing: enabled");
mullvad_client
.set_allow_lan(true)
.await
.expect("failed to enable LAN sharing");
//
// Ensure LAN is reachable
//
log::info!("Test whether outgoing LAN traffic is blocked");
let detected_probes =
send_guest_probes(rpc.clone(), default_interface, lan_destination).await?;
assert!(
detected_probes.all(),
"did not observe all outgoing LAN packets: {detected_probes:?}"
);
Ok(())
}
/// Enable lockdown mode. This test succeeds if:
///
/// * Disconnected state: Outgoing traffic leaks (UDP/TCP/ICMP)
/// cannot be produced.
/// * Disconnected state: Outgoing traffic to a single
/// private IP can be produced, if and only if LAN
/// sharing is enabled.
/// * Connected state: Outgoing traffic leaks (UDP/TCP/ICMP)
/// cannot be produced.
///
/// # Limitations
///
/// These tests are performed on one single public IP address
/// and one private IP address. They detect basic leaks but
/// do not guarantee close conformity with the security
/// document.
#[test_function]
pub async fn test_lockdown(
_: TestContext,
rpc: ServiceClient,
mut mullvad_client: ManagementServiceClient,
) -> Result<(), Error> {
let lan_destination: SocketAddr = SocketAddr::new(IpAddr::V4(DUMMY_LAN_INTERFACE_IP), 1337);
let inet_destination: SocketAddr = "1.1.1.1:1337".parse().unwrap();
log::info!("Verify tunnel state: disconnected");
assert_tunnel_state!(&mut mullvad_client, TunnelState::Disconnected);
//
// Enable lockdown mode
//
mullvad_client
.set_block_when_disconnected(true)
.await
.expect("failed to enable lockdown mode");
//
// Disable LAN sharing
//
log::info!("LAN sharing: disabled");
mullvad_client
.set_allow_lan(false)
.await
.expect("failed to disable LAN sharing");
//
// Ensure all destinations are unreachable
//
let default_interface = rpc.get_default_interface().await?;
let detected_probes =
send_guest_probes(rpc.clone(), default_interface.clone(), lan_destination).await?;
assert!(
detected_probes.none(),
"observed outgoing packets to LAN: {detected_probes:?}"
);
let detected_probes =
send_guest_probes(rpc.clone(), default_interface.clone(), inet_destination).await?;
assert!(
detected_probes.none(),
"observed outgoing packets to internet: {detected_probes:?}"
);
//
// Enable LAN sharing
//
log::info!("LAN sharing: enabled");
mullvad_client
.set_allow_lan(true)
.await
.expect("failed to enable LAN sharing");
//
// Ensure private IPs are reachable, but not others
//
let detected_probes =
send_guest_probes(rpc.clone(), default_interface.clone(), lan_destination).await?;
assert!(
detected_probes.all(),
"did not observe some outgoing packets: {detected_probes:?}"
);
let detected_probes =
send_guest_probes(rpc.clone(), default_interface.clone(), inet_destination).await?;
assert!(
detected_probes.none(),
"observed outgoing packets to internet: {detected_probes:?}"
);
//
// Connect
//
connect_and_wait(&mut mullvad_client).await?;
//
// Leak test
//
assert!(
helpers::using_mullvad_exit(&rpc).await,
"expected Mullvad exit IP"
);
// Send traffic outside the tunnel to sanity check that the internet is *not* reachable via non-
// tunnel interfaces.
let detected_probes =
send_guest_probes(rpc.clone(), default_interface, inet_destination).await?;
assert!(
detected_probes.none(),
"observed outgoing packets to internet: {detected_probes:?}"
);
//
// Disable lockdown mode
//
mullvad_client
.set_block_when_disconnected(false)
.await
.expect("failed to disable lockdown mode");
Ok(())
}
|
