From: Matt Corallo Date: Wed, 23 Jan 2019 21:54:01 +0000 (-0500) Subject: Split up monitor-update-failed tests and other functional tests X-Git-Tag: v0.0.12~237^2~2 X-Git-Url: http://git.bitcoin.ninja/?a=commitdiff_plain;h=aa8ecfed7bca0f8c1ae50a2bfda5c6c3bf5a7a53;p=rust-lightning Split up monitor-update-failed tests and other functional tests --- diff --git a/src/ln/chanmon_update_fail_tests.rs b/src/ln/chanmon_update_fail_tests.rs new file mode 100644 index 000000000..545ffc1ec --- /dev/null +++ b/src/ln/chanmon_update_fail_tests.rs @@ -0,0 +1,989 @@ +//! Functional tests which test the correct handling of ChannelMonitorUpdateErr returns from +//! monitor updates. +//! There are a bunch of these as their handling is relatively error-prone so they are split out +//! here. See also the chanmon_fail_consistency fuzz test. + +use ln::channelmanager::{RAACommitmentOrder, PaymentPreimage, PaymentHash}; +use ln::channelmonitor::ChannelMonitorUpdateErr; +use ln::msgs; +use ln::msgs::ChannelMessageHandler; +use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider}; +use util::errors::APIError; + +use bitcoin_hashes::sha256::Hash as Sha256; +use bitcoin_hashes::Hash; + +use std::time::Instant; + +use ln::functional_test_utils::*; + +#[test] +fn test_simple_monitor_permanent_update_fail() { + // Test that we handle a simple permanent monitor update failure + let mut nodes = create_network(2); + create_announced_chan_between_nodes(&nodes, 0, 1); + + let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (_, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::PermanentFailure); + if let Err(APIError::ChannelUnavailable {..}) = nodes[0].node.send_payment(route, payment_hash_1) {} else { panic!(); } + check_added_monitors!(nodes[0], 1); + + let events_1 = nodes[0].node.get_and_clear_pending_msg_events(); + assert_eq!(events_1.len(), 2); + match events_1[0] { + MessageSendEvent::BroadcastChannelUpdate { .. } => {}, + _ => panic!("Unexpected event"), + }; + match events_1[1] { + MessageSendEvent::HandleError { node_id, .. } => assert_eq!(node_id, nodes[1].node.get_our_node_id()), + _ => panic!("Unexpected event"), + }; + + // TODO: Once we hit the chain with the failure transaction we should check that we get a + // PaymentFailed event + + assert_eq!(nodes[0].node.list_channels().len(), 0); +} + +fn do_test_simple_monitor_temporary_update_fail(disconnect: bool) { + // Test that we can recover from a simple temporary monitor update failure optionally with + // a disconnect in between + let mut nodes = create_network(2); + create_announced_chan_between_nodes(&nodes, 0, 1); + + let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route.clone(), payment_hash_1) {} else { panic!(); } + check_added_monitors!(nodes[0], 1); + + assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + assert_eq!(nodes[0].node.list_channels().len(), 1); + + if disconnect { + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); + } + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[0].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[0], 1); + + let mut events_2 = nodes[0].node.get_and_clear_pending_msg_events(); + assert_eq!(events_2.len(), 1); + let payment_event = SendEvent::from_event(events_2.pop().unwrap()); + assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id()); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); + commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); + + expect_pending_htlcs_forwardable!(nodes[1]); + + let events_3 = nodes[1].node.get_and_clear_pending_events(); + assert_eq!(events_3.len(), 1); + match events_3[0] { + Event::PaymentReceived { ref payment_hash, amt } => { + assert_eq!(payment_hash_1, *payment_hash); + assert_eq!(amt, 1000000); + }, + _ => panic!("Unexpected event"), + } + + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); + + // Now set it to failed again... + let (_, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route, payment_hash_2) {} else { panic!(); } + check_added_monitors!(nodes[0], 1); + + assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + assert_eq!(nodes[0].node.list_channels().len(), 1); + + if disconnect { + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); + } + + // ...and make sure we can force-close a TemporaryFailure channel with a PermanentFailure + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::PermanentFailure); + nodes[0].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[0], 1); + check_closed_broadcast!(nodes[0]); + + // TODO: Once we hit the chain with the failure transaction we should check that we get a + // PaymentFailed event + + assert_eq!(nodes[0].node.list_channels().len(), 0); +} + +#[test] +fn test_simple_monitor_temporary_update_fail() { + do_test_simple_monitor_temporary_update_fail(false); + do_test_simple_monitor_temporary_update_fail(true); +} + +fn do_test_monitor_temporary_update_fail(disconnect_count: usize) { + let disconnect_flags = 8 | 16; + + // Test that we can recover from a temporary monitor update failure with some in-flight + // HTLCs going on at the same time potentially with some disconnection thrown in. + // * First we route a payment, then get a temporary monitor update failure when trying to + // route a second payment. We then claim the first payment. + // * If disconnect_count is set, we will disconnect at this point (which is likely as + // TemporaryFailure likely indicates net disconnect which resulted in failing to update + // the ChannelMonitor on a watchtower). + // * If !(disconnect_count & 16) we deliver a update_fulfill_htlc/CS for the first payment + // immediately, otherwise we wait sconnect and deliver them via the reconnect + // channel_reestablish processing (ie disconnect_count & 16 makes no sense if + // disconnect_count & !disconnect_flags is 0). + // * We then update the channel monitor, reconnecting if disconnect_count is set and walk + // through message sending, potentially disconnect/reconnecting multiple times based on + // disconnect_count, to get the update_fulfill_htlc through. + // * We then walk through more message exchanges to get the original update_add_htlc + // through, swapping message ordering based on disconnect_count & 8 and optionally + // disconnect/reconnecting based on disconnect_count. + let mut nodes = create_network(2); + create_announced_chan_between_nodes(&nodes, 0, 1); + + let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000); + + // Now try to send a second payment which will fail to send + let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route.clone(), payment_hash_2) {} else { panic!(); } + check_added_monitors!(nodes[0], 1); + + assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + assert_eq!(nodes[0].node.list_channels().len(), 1); + + // Claim the previous payment, which will result in a update_fulfill_htlc/CS from nodes[1] + // but nodes[0] won't respond since it is frozen. + assert!(nodes[1].node.claim_funds(payment_preimage_1)); + check_added_monitors!(nodes[1], 1); + let events_2 = nodes[1].node.get_and_clear_pending_msg_events(); + assert_eq!(events_2.len(), 1); + let (bs_initial_fulfill, bs_initial_commitment_signed) = match events_2[0] { + MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { + assert_eq!(*node_id, nodes[0].node.get_our_node_id()); + assert!(update_add_htlcs.is_empty()); + assert_eq!(update_fulfill_htlcs.len(), 1); + assert!(update_fail_htlcs.is_empty()); + assert!(update_fail_malformed_htlcs.is_empty()); + assert!(update_fee.is_none()); + + if (disconnect_count & 16) == 0 { + nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlcs[0]).unwrap(); + let events_3 = nodes[0].node.get_and_clear_pending_events(); + assert_eq!(events_3.len(), 1); + match events_3[0] { + Event::PaymentSent { ref payment_preimage } => { + assert_eq!(*payment_preimage, payment_preimage_1); + }, + _ => panic!("Unexpected event"), + } + + if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::IgnoreError) }) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed) { + assert_eq!(err, "Previous monitor update failure prevented generation of RAA"); + } else { panic!(); } + } + + (update_fulfill_htlcs[0].clone(), commitment_signed.clone()) + }, + _ => panic!("Unexpected event"), + }; + + if disconnect_count & !disconnect_flags > 0 { + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + } + + // Now fix monitor updating... + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[0].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[0], 1); + + macro_rules! disconnect_reconnect_peers { () => { { + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + + nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); + let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); + assert_eq!(reestablish_1.len(), 1); + nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); + let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); + assert_eq!(reestablish_2.len(), 1); + + nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); + let as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); + nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); + let bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); + + assert!(as_resp.0.is_none()); + assert!(bs_resp.0.is_none()); + + (reestablish_1, reestablish_2, as_resp, bs_resp) + } } } + + let (payment_event, initial_revoke_and_ack) = if disconnect_count & !disconnect_flags > 0 { + assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + + nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); + let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); + assert_eq!(reestablish_1.len(), 1); + nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); + let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); + assert_eq!(reestablish_2.len(), 1); + + nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); + check_added_monitors!(nodes[0], 0); + let mut as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); + nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); + check_added_monitors!(nodes[1], 0); + let mut bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); + + assert!(as_resp.0.is_none()); + assert!(bs_resp.0.is_none()); + + assert!(bs_resp.1.is_none()); + if (disconnect_count & 16) == 0 { + assert!(bs_resp.2.is_none()); + + assert!(as_resp.1.is_some()); + assert!(as_resp.2.is_some()); + assert!(as_resp.3 == RAACommitmentOrder::CommitmentFirst); + } else { + assert!(bs_resp.2.as_ref().unwrap().update_add_htlcs.is_empty()); + assert!(bs_resp.2.as_ref().unwrap().update_fail_htlcs.is_empty()); + assert!(bs_resp.2.as_ref().unwrap().update_fail_malformed_htlcs.is_empty()); + assert!(bs_resp.2.as_ref().unwrap().update_fee.is_none()); + assert!(bs_resp.2.as_ref().unwrap().update_fulfill_htlcs == vec![bs_initial_fulfill]); + assert!(bs_resp.2.as_ref().unwrap().commitment_signed == bs_initial_commitment_signed); + + assert!(as_resp.1.is_none()); + + nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().update_fulfill_htlcs[0]).unwrap(); + let events_3 = nodes[0].node.get_and_clear_pending_events(); + assert_eq!(events_3.len(), 1); + match events_3[0] { + Event::PaymentSent { ref payment_preimage } => { + assert_eq!(*payment_preimage, payment_preimage_1); + }, + _ => panic!("Unexpected event"), + } + + nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().commitment_signed).unwrap(); + let as_resp_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); + // No commitment_signed so get_event_msg's assert(len == 1) passes + check_added_monitors!(nodes[0], 1); + + as_resp.1 = Some(as_resp_raa); + bs_resp.2 = None; + } + + if disconnect_count & !disconnect_flags > 1 { + let (second_reestablish_1, second_reestablish_2, second_as_resp, second_bs_resp) = disconnect_reconnect_peers!(); + + if (disconnect_count & 16) == 0 { + assert!(reestablish_1 == second_reestablish_1); + assert!(reestablish_2 == second_reestablish_2); + } + assert!(as_resp == second_as_resp); + assert!(bs_resp == second_bs_resp); + } + + (SendEvent::from_commitment_update(nodes[1].node.get_our_node_id(), as_resp.2.unwrap()), as_resp.1.unwrap()) + } else { + let mut events_4 = nodes[0].node.get_and_clear_pending_msg_events(); + assert_eq!(events_4.len(), 2); + (SendEvent::from_event(events_4.remove(0)), match events_4[0] { + MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { + assert_eq!(*node_id, nodes[1].node.get_our_node_id()); + msg.clone() + }, + _ => panic!("Unexpected event"), + }) + }; + + assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id()); + + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); + nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); + let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); + // nodes[1] is awaiting an RAA from nodes[0] still so get_event_msg's assert(len == 1) passes + check_added_monitors!(nodes[1], 1); + + if disconnect_count & !disconnect_flags > 2 { + let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); + + assert!(as_resp.1.unwrap() == initial_revoke_and_ack); + assert!(bs_resp.1.unwrap() == bs_revoke_and_ack); + + assert!(as_resp.2.is_none()); + assert!(bs_resp.2.is_none()); + } + + let as_commitment_update; + let bs_second_commitment_update; + + macro_rules! handle_bs_raa { () => { + nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); + as_commitment_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); + assert!(as_commitment_update.update_add_htlcs.is_empty()); + assert!(as_commitment_update.update_fulfill_htlcs.is_empty()); + assert!(as_commitment_update.update_fail_htlcs.is_empty()); + assert!(as_commitment_update.update_fail_malformed_htlcs.is_empty()); + assert!(as_commitment_update.update_fee.is_none()); + check_added_monitors!(nodes[0], 1); + } } + + macro_rules! handle_initial_raa { () => { + nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &initial_revoke_and_ack).unwrap(); + bs_second_commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); + assert!(bs_second_commitment_update.update_add_htlcs.is_empty()); + assert!(bs_second_commitment_update.update_fulfill_htlcs.is_empty()); + assert!(bs_second_commitment_update.update_fail_htlcs.is_empty()); + assert!(bs_second_commitment_update.update_fail_malformed_htlcs.is_empty()); + assert!(bs_second_commitment_update.update_fee.is_none()); + check_added_monitors!(nodes[1], 1); + } } + + if (disconnect_count & 8) == 0 { + handle_bs_raa!(); + + if disconnect_count & !disconnect_flags > 3 { + let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); + + assert!(as_resp.1.unwrap() == initial_revoke_and_ack); + assert!(bs_resp.1.is_none()); + + assert!(as_resp.2.unwrap() == as_commitment_update); + assert!(bs_resp.2.is_none()); + + assert!(as_resp.3 == RAACommitmentOrder::RevokeAndACKFirst); + } + + handle_initial_raa!(); + + if disconnect_count & !disconnect_flags > 4 { + let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); + + assert!(as_resp.1.is_none()); + assert!(bs_resp.1.is_none()); + + assert!(as_resp.2.unwrap() == as_commitment_update); + assert!(bs_resp.2.unwrap() == bs_second_commitment_update); + } + } else { + handle_initial_raa!(); + + if disconnect_count & !disconnect_flags > 3 { + let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); + + assert!(as_resp.1.is_none()); + assert!(bs_resp.1.unwrap() == bs_revoke_and_ack); + + assert!(as_resp.2.is_none()); + assert!(bs_resp.2.unwrap() == bs_second_commitment_update); + + assert!(bs_resp.3 == RAACommitmentOrder::RevokeAndACKFirst); + } + + handle_bs_raa!(); + + if disconnect_count & !disconnect_flags > 4 { + let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); + + assert!(as_resp.1.is_none()); + assert!(bs_resp.1.is_none()); + + assert!(as_resp.2.unwrap() == as_commitment_update); + assert!(bs_resp.2.unwrap() == bs_second_commitment_update); + } + } + + nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment_update.commitment_signed).unwrap(); + let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); + // No commitment_signed so get_event_msg's assert(len == 1) passes + check_added_monitors!(nodes[0], 1); + + nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_update.commitment_signed).unwrap(); + let bs_second_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); + // No commitment_signed so get_event_msg's assert(len == 1) passes + check_added_monitors!(nodes[1], 1); + + nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + check_added_monitors!(nodes[1], 1); + + nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke_and_ack).unwrap(); + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + check_added_monitors!(nodes[0], 1); + + expect_pending_htlcs_forwardable!(nodes[1]); + + let events_5 = nodes[1].node.get_and_clear_pending_events(); + assert_eq!(events_5.len(), 1); + match events_5[0] { + Event::PaymentReceived { ref payment_hash, amt } => { + assert_eq!(payment_hash_2, *payment_hash); + assert_eq!(amt, 1000000); + }, + _ => panic!("Unexpected event"), + } + + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); +} + +#[test] +fn test_monitor_temporary_update_fail_a() { + do_test_monitor_temporary_update_fail(0); + do_test_monitor_temporary_update_fail(1); + do_test_monitor_temporary_update_fail(2); + do_test_monitor_temporary_update_fail(3); + do_test_monitor_temporary_update_fail(4); + do_test_monitor_temporary_update_fail(5); +} + +#[test] +fn test_monitor_temporary_update_fail_b() { + do_test_monitor_temporary_update_fail(2 | 8); + do_test_monitor_temporary_update_fail(3 | 8); + do_test_monitor_temporary_update_fail(4 | 8); + do_test_monitor_temporary_update_fail(5 | 8); +} + +#[test] +fn test_monitor_temporary_update_fail_c() { + do_test_monitor_temporary_update_fail(1 | 16); + do_test_monitor_temporary_update_fail(2 | 16); + do_test_monitor_temporary_update_fail(3 | 16); + do_test_monitor_temporary_update_fail(2 | 8 | 16); + do_test_monitor_temporary_update_fail(3 | 8 | 16); +} + +#[test] +fn test_monitor_update_fail_cs() { + // Tests handling of a monitor update failure when processing an incoming commitment_signed + let mut nodes = create_network(2); + create_announced_chan_between_nodes(&nodes, 0, 1); + + let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); + nodes[0].node.send_payment(route, our_payment_hash).unwrap(); + check_added_monitors!(nodes[0], 1); + + let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event.commitment_msg).unwrap_err() { + assert_eq!(err, "Failed to update ChannelMonitor"); + } else { panic!(); } + check_added_monitors!(nodes[1], 1); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[1].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[1], 1); + let responses = nodes[1].node.get_and_clear_pending_msg_events(); + assert_eq!(responses.len(), 2); + + match responses[0] { + MessageSendEvent::SendRevokeAndACK { ref msg, ref node_id } => { + assert_eq!(*node_id, nodes[0].node.get_our_node_id()); + nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &msg).unwrap(); + check_added_monitors!(nodes[0], 1); + }, + _ => panic!("Unexpected event"), + } + match responses[1] { + MessageSendEvent::UpdateHTLCs { ref updates, ref node_id } => { + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fulfill_htlcs.is_empty()); + assert!(updates.update_fail_htlcs.is_empty()); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + assert_eq!(*node_id, nodes[0].node.get_our_node_id()); + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &updates.commitment_signed).unwrap_err() { + assert_eq!(err, "Failed to update ChannelMonitor"); + } else { panic!(); } + check_added_monitors!(nodes[0], 1); + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + }, + _ => panic!("Unexpected event"), + } + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[0].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[0], 1); + + let final_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); + nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &final_raa).unwrap(); + check_added_monitors!(nodes[1], 1); + + expect_pending_htlcs_forwardable!(nodes[1]); + + let events = nodes[1].node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + match events[0] { + Event::PaymentReceived { payment_hash, amt } => { + assert_eq!(payment_hash, our_payment_hash); + assert_eq!(amt, 1000000); + }, + _ => panic!("Unexpected event"), + }; + + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage); +} + +#[test] +fn test_monitor_update_fail_no_rebroadcast() { + // Tests handling of a monitor update failure when no message rebroadcasting on + // test_restore_channel_monitor() is required. Backported from + // chanmon_fail_consistency fuzz tests. + let mut nodes = create_network(2); + create_announced_chan_between_nodes(&nodes, 0, 1); + + let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (payment_preimage_1, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); + nodes[0].node.send_payment(route, our_payment_hash).unwrap(); + check_added_monitors!(nodes[0], 1); + + let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); + let bs_raa = commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true, false, true); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &bs_raa).unwrap_err() { + assert_eq!(err, "Failed to update ChannelMonitor"); + } else { panic!(); } + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); + check_added_monitors!(nodes[1], 1); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[1].node.test_restore_channel_monitor(); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + check_added_monitors!(nodes[1], 1); + expect_pending_htlcs_forwardable!(nodes[1]); + + let events = nodes[1].node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + match events[0] { + Event::PaymentReceived { payment_hash, .. } => { + assert_eq!(payment_hash, our_payment_hash); + }, + _ => panic!("Unexpected event"), + } + + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); +} + +#[test] +fn test_monitor_update_raa_while_paused() { + // Tests handling of an RAA while monitor updating has already been marked failed. + // Backported from chanmon_fail_consistency fuzz tests as this used to be broken. + let mut nodes = create_network(2); + create_announced_chan_between_nodes(&nodes, 0, 1); + + send_payment(&nodes[0], &[&nodes[1]], 5000000); + + let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (payment_preimage_1, our_payment_hash_1) = get_payment_preimage_hash!(nodes[0]); + nodes[0].node.send_payment(route, our_payment_hash_1).unwrap(); + check_added_monitors!(nodes[0], 1); + let send_event_1 = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); + + let route = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + let (payment_preimage_2, our_payment_hash_2) = get_payment_preimage_hash!(nodes[0]); + nodes[1].node.send_payment(route, our_payment_hash_2).unwrap(); + check_added_monitors!(nodes[1], 1); + let send_event_2 = SendEvent::from_event(nodes[1].node.get_and_clear_pending_msg_events().remove(0)); + + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event_1.msgs[0]).unwrap(); + nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event_1.commitment_msg).unwrap(); + check_added_monitors!(nodes[1], 1); + let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_2.msgs[0]).unwrap(); + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_2.commitment_msg).unwrap_err() { + assert_eq!(err, "Failed to update ChannelMonitor"); + } else { panic!(); } + check_added_monitors!(nodes[0], 1); + + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa).unwrap_err() { + assert_eq!(err, "Previous monitor update failure prevented responses to RAA"); + } else { panic!(); } + check_added_monitors!(nodes[0], 1); + + *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[0].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[0], 1); + + let as_update_raa = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id()); + nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_update_raa.0).unwrap(); + check_added_monitors!(nodes[1], 1); + let bs_cs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); + + nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_update_raa.1).unwrap(); + check_added_monitors!(nodes[1], 1); + let bs_second_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); + + nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_cs.commitment_signed).unwrap(); + check_added_monitors!(nodes[0], 1); + let as_second_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); + + nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_raa).unwrap(); + check_added_monitors!(nodes[0], 1); + expect_pending_htlcs_forwardable!(nodes[0]); + expect_payment_received!(nodes[0], our_payment_hash_2, 1000000); + + nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_raa).unwrap(); + check_added_monitors!(nodes[1], 1); + expect_pending_htlcs_forwardable!(nodes[1]); + expect_payment_received!(nodes[1], our_payment_hash_1, 1000000); + + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); + claim_payment(&nodes[1], &[&nodes[0]], payment_preimage_2); +} + +fn do_test_monitor_update_fail_raa(test_ignore_second_cs: bool) { + // Tests handling of a monitor update failure when processing an incoming RAA + let mut nodes = create_network(3); + create_announced_chan_between_nodes(&nodes, 0, 1); + let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); + + // Rebalance a bit so that we can send backwards from 2 to 1. + send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000); + + // Route a first payment that we'll fail backwards + let (_, payment_hash_1) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); + + // Fail the payment backwards, failing the monitor update on nodes[1]'s receipt of the RAA + assert!(nodes[2].node.fail_htlc_backwards(&payment_hash_1, 0)); + expect_pending_htlcs_forwardable!(nodes[2]); + check_added_monitors!(nodes[2], 1); + + let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fulfill_htlcs.is_empty()); + assert_eq!(updates.update_fail_htlcs.len(), 1); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); + + let bs_revoke_and_ack = commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false, true, false, true); + check_added_monitors!(nodes[0], 0); + + // While the second channel is AwaitingRAA, forward a second payment to get it into the + // holding cell. + let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); + let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + nodes[0].node.send_payment(route, payment_hash_2).unwrap(); + check_added_monitors!(nodes[0], 1); + + let mut send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); + commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false); + + expect_pending_htlcs_forwardable!(nodes[1]); + check_added_monitors!(nodes[1], 0); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + + // Now fail monitor updating. + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack).unwrap_err() { + assert_eq!(err, "Failed to update ChannelMonitor"); + } else { panic!(); } + assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + check_added_monitors!(nodes[1], 1); + + // Attempt to forward a third payment but fail due to the second channel being unavailable + // for forwarding. + + let (_, payment_hash_3) = get_payment_preimage_hash!(nodes[0]); + let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + nodes[0].node.send_payment(route, payment_hash_3).unwrap(); + check_added_monitors!(nodes[0], 1); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); // We succeed in updating the monitor for the first channel + send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); + commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true); + check_added_monitors!(nodes[1], 0); + + let mut events_2 = nodes[1].node.get_and_clear_pending_msg_events(); + assert_eq!(events_2.len(), 1); + match events_2.remove(0) { + MessageSendEvent::UpdateHTLCs { node_id, updates } => { + assert_eq!(node_id, nodes[0].node.get_our_node_id()); + assert!(updates.update_fulfill_htlcs.is_empty()); + assert_eq!(updates.update_fail_htlcs.len(), 1); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + + nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); + commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false, true); + + let msg_events = nodes[0].node.get_and_clear_pending_msg_events(); + assert_eq!(msg_events.len(), 1); + match msg_events[0] { + MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => { + assert_eq!(msg.contents.short_channel_id, chan_2.0.contents.short_channel_id); + assert_eq!(msg.contents.flags & 2, 2); // temp disabled + }, + _ => panic!("Unexpected event"), + } + + let events = nodes[0].node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events[0] { + assert_eq!(payment_hash, payment_hash_3); + assert!(!rejected_by_dest); + } else { panic!("Unexpected event!"); } + }, + _ => panic!("Unexpected event type!"), + }; + + let (payment_preimage_4, payment_hash_4) = if test_ignore_second_cs { + // Try to route another payment backwards from 2 to make sure 1 holds off on responding + let (payment_preimage_4, payment_hash_4) = get_payment_preimage_hash!(nodes[0]); + let route = nodes[2].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); + nodes[2].node.send_payment(route, payment_hash_4).unwrap(); + check_added_monitors!(nodes[2], 1); + + send_event = SendEvent::from_event(nodes[2].node.get_and_clear_pending_msg_events().remove(0)); + nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); + if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::IgnoreError) }) = nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &send_event.commitment_msg) { + assert_eq!(err, "Previous monitor update failure prevented generation of RAA"); + } else { panic!(); } + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); + (Some(payment_preimage_4), Some(payment_hash_4)) + } else { (None, None) }; + + // Restore monitor updating, ensuring we immediately get a fail-back update and a + // update_add update. + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[1].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[1], 1); + expect_pending_htlcs_forwardable!(nodes[1]); + check_added_monitors!(nodes[1], 1); + + let mut events_3 = nodes[1].node.get_and_clear_pending_msg_events(); + if test_ignore_second_cs { + assert_eq!(events_3.len(), 3); + } else { + assert_eq!(events_3.len(), 2); + } + + // Note that the ordering of the events for different nodes is non-prescriptive, though the + // ordering of the two events that both go to nodes[2] have to stay in the same order. + let messages_a = match events_3.pop().unwrap() { + MessageSendEvent::UpdateHTLCs { node_id, mut updates } => { + assert_eq!(node_id, nodes[0].node.get_our_node_id()); + assert!(updates.update_fulfill_htlcs.is_empty()); + assert_eq!(updates.update_fail_htlcs.len(), 1); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + (updates.update_fail_htlcs.remove(0), updates.commitment_signed) + }, + _ => panic!("Unexpected event type!"), + }; + let raa = if test_ignore_second_cs { + match events_3.remove(1) { + MessageSendEvent::SendRevokeAndACK { node_id, msg } => { + assert_eq!(node_id, nodes[2].node.get_our_node_id()); + Some(msg.clone()) + }, + _ => panic!("Unexpected event"), + } + } else { None }; + let send_event_b = SendEvent::from_event(events_3.remove(0)); + assert_eq!(send_event_b.node_id, nodes[2].node.get_our_node_id()); + + // Now deliver the new messages... + + nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &messages_a.0).unwrap(); + commitment_signed_dance!(nodes[0], nodes[1], messages_a.1, false); + let events_4 = nodes[0].node.get_and_clear_pending_events(); + assert_eq!(events_4.len(), 1); + if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events_4[0] { + assert_eq!(payment_hash, payment_hash_1); + assert!(rejected_by_dest); + } else { panic!("Unexpected event!"); } + + nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_b.msgs[0]).unwrap(); + if test_ignore_second_cs { + nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_b.commitment_msg).unwrap(); + check_added_monitors!(nodes[2], 1); + let bs_revoke_and_ack = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); + nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &raa.unwrap()).unwrap(); + check_added_monitors!(nodes[2], 1); + let bs_cs = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); + assert!(bs_cs.update_add_htlcs.is_empty()); + assert!(bs_cs.update_fail_htlcs.is_empty()); + assert!(bs_cs.update_fail_malformed_htlcs.is_empty()); + assert!(bs_cs.update_fulfill_htlcs.is_empty()); + assert!(bs_cs.update_fee.is_none()); + + nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); + check_added_monitors!(nodes[1], 1); + let as_cs = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id()); + assert!(as_cs.update_add_htlcs.is_empty()); + assert!(as_cs.update_fail_htlcs.is_empty()); + assert!(as_cs.update_fail_malformed_htlcs.is_empty()); + assert!(as_cs.update_fulfill_htlcs.is_empty()); + assert!(as_cs.update_fee.is_none()); + + nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_cs.commitment_signed).unwrap(); + check_added_monitors!(nodes[1], 1); + let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id()); + + nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_cs.commitment_signed).unwrap(); + check_added_monitors!(nodes[2], 1); + let bs_second_raa = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); + + nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa).unwrap(); + check_added_monitors!(nodes[2], 1); + assert!(nodes[2].node.get_and_clear_pending_msg_events().is_empty()); + + nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_second_raa).unwrap(); + check_added_monitors!(nodes[1], 1); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + } else { + commitment_signed_dance!(nodes[2], nodes[1], send_event_b.commitment_msg, false); + } + + expect_pending_htlcs_forwardable!(nodes[2]); + + let events_6 = nodes[2].node.get_and_clear_pending_events(); + assert_eq!(events_6.len(), 1); + match events_6[0] { + Event::PaymentReceived { payment_hash, .. } => { assert_eq!(payment_hash, payment_hash_2); }, + _ => panic!("Unexpected event"), + }; + + if test_ignore_second_cs { + expect_pending_htlcs_forwardable!(nodes[1]); + check_added_monitors!(nodes[1], 1); + + send_event = SendEvent::from_node(&nodes[1]); + assert_eq!(send_event.node_id, nodes[0].node.get_our_node_id()); + assert_eq!(send_event.msgs.len(), 1); + nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); + commitment_signed_dance!(nodes[0], nodes[1], send_event.commitment_msg, false); + + expect_pending_htlcs_forwardable!(nodes[0]); + + let events_9 = nodes[0].node.get_and_clear_pending_events(); + assert_eq!(events_9.len(), 1); + match events_9[0] { + Event::PaymentReceived { payment_hash, .. } => assert_eq!(payment_hash, payment_hash_4.unwrap()), + _ => panic!("Unexpected event"), + }; + claim_payment(&nodes[2], &[&nodes[1], &nodes[0]], payment_preimage_4.unwrap()); + } + + claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage_2); +} + +#[test] +fn test_monitor_update_fail_raa() { + do_test_monitor_update_fail_raa(false); + do_test_monitor_update_fail_raa(true); +} + +#[test] +fn test_monitor_update_fail_reestablish() { + // Simple test for message retransmission after monitor update failure on + // channel_reestablish generating a monitor update (which comes from freeing holding cell + // HTLCs). + let mut nodes = create_network(3); + create_announced_chan_between_nodes(&nodes, 0, 1); + create_announced_chan_between_nodes(&nodes, 1, 2); + + let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); + + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + + assert!(nodes[2].node.claim_funds(our_payment_preimage)); + check_added_monitors!(nodes[2], 1); + let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fail_htlcs.is_empty()); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + assert_eq!(updates.update_fulfill_htlcs.len(), 1); + nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); + check_added_monitors!(nodes[1], 1); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); + nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); + nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); + + let as_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()); + let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); + + nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish).unwrap(); + + if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish).unwrap_err() { + assert_eq!(err, "Failed to update ChannelMonitor"); + } else { panic!(); } + check_added_monitors!(nodes[1], 1); + + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + + nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); + nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); + + assert!(as_reestablish == get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id())); + assert!(bs_reestablish == get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id())); + + nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish).unwrap(); + + nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish).unwrap(); + check_added_monitors!(nodes[1], 0); + assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); + + *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); + nodes[1].node.test_restore_channel_monitor(); + check_added_monitors!(nodes[1], 1); + + updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fail_htlcs.is_empty()); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + assert_eq!(updates.update_fulfill_htlcs.len(), 1); + nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); + commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false); + + let events = nodes[0].node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + match events[0] { + Event::PaymentSent { payment_preimage, .. } => assert_eq!(payment_preimage, our_payment_preimage), + _ => panic!("Unexpected event"), + } +} diff --git a/src/ln/functional_tests.rs b/src/ln/functional_tests.rs index db2017e10..d4c2afb7c 100644 --- a/src/ln/functional_tests.rs +++ b/src/ln/functional_tests.rs @@ -8,7 +8,7 @@ use chain::keysinterface::{KeysInterface, SpendableOutputDescriptor}; use chain::keysinterface; use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC, BREAKDOWN_TIMEOUT}; use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,HTLCForwardInfo,RAACommitmentOrder, PaymentPreimage, PaymentHash}; -use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, CLTV_CLAIM_BUFFER, HTLC_FAIL_TIMEOUT_BLOCKS, ManyChannelMonitor}; +use ln::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, HTLC_FAIL_TIMEOUT_BLOCKS, ManyChannelMonitor}; use ln::channel::{ACCEPTED_HTLC_SCRIPT_WEIGHT, OFFERED_HTLC_SCRIPT_WEIGHT}; use ln::onion_utils; use ln::router::{Route, RouteHop}; @@ -2850,977 +2850,6 @@ fn test_drop_messages_peer_disconnect_dual_htlc() { claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); } -#[test] -fn test_simple_monitor_permanent_update_fail() { - // Test that we handle a simple permanent monitor update failure - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (_, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::PermanentFailure); - if let Err(APIError::ChannelUnavailable {..}) = nodes[0].node.send_payment(route, payment_hash_1) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - let events_1 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_1.len(), 2); - match events_1[0] { - MessageSendEvent::BroadcastChannelUpdate { .. } => {}, - _ => panic!("Unexpected event"), - }; - match events_1[1] { - MessageSendEvent::HandleError { node_id, .. } => assert_eq!(node_id, nodes[1].node.get_our_node_id()), - _ => panic!("Unexpected event"), - }; - - // TODO: Once we hit the chain with the failure transaction we should check that we get a - // PaymentFailed event - - assert_eq!(nodes[0].node.list_channels().len(), 0); -} - -fn do_test_simple_monitor_temporary_update_fail(disconnect: bool) { - // Test that we can recover from a simple temporary monitor update failure optionally with - // a disconnect in between - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route.clone(), payment_hash_1) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert_eq!(nodes[0].node.list_channels().len(), 1); - - if disconnect { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - let mut events_2 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - let payment_event = SendEvent::from_event(events_2.pop().unwrap()); - assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); - - expect_pending_htlcs_forwardable!(nodes[1]); - - let events_3 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(payment_hash_1, *payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - } - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); - - // Now set it to failed again... - let (_, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route, payment_hash_2) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert_eq!(nodes[0].node.list_channels().len(), 1); - - if disconnect { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); - } - - // ...and make sure we can force-close a TemporaryFailure channel with a PermanentFailure - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::PermanentFailure); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - check_closed_broadcast!(nodes[0]); - - // TODO: Once we hit the chain with the failure transaction we should check that we get a - // PaymentFailed event - - assert_eq!(nodes[0].node.list_channels().len(), 0); -} - -#[test] -fn test_simple_monitor_temporary_update_fail() { - do_test_simple_monitor_temporary_update_fail(false); - do_test_simple_monitor_temporary_update_fail(true); -} - -fn do_test_monitor_temporary_update_fail(disconnect_count: usize) { - let disconnect_flags = 8 | 16; - - // Test that we can recover from a temporary monitor update failure with some in-flight - // HTLCs going on at the same time potentially with some disconnection thrown in. - // * First we route a payment, then get a temporary monitor update failure when trying to - // route a second payment. We then claim the first payment. - // * If disconnect_count is set, we will disconnect at this point (which is likely as - // TemporaryFailure likely indicates net disconnect which resulted in failing to update - // the ChannelMonitor on a watchtower). - // * If !(disconnect_count & 16) we deliver a update_fulfill_htlc/CS for the first payment - // immediately, otherwise we wait sconnect and deliver them via the reconnect - // channel_reestablish processing (ie disconnect_count & 16 makes no sense if - // disconnect_count & !disconnect_flags is 0). - // * We then update the channel monitor, reconnecting if disconnect_count is set and walk - // through message sending, potentially disconnect/reconnecting multiple times based on - // disconnect_count, to get the update_fulfill_htlc through. - // * We then walk through more message exchanges to get the original update_add_htlc - // through, swapping message ordering based on disconnect_count & 8 and optionally - // disconnect/reconnecting based on disconnect_count. - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000); - - // Now try to send a second payment which will fail to send - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let Err(APIError::MonitorUpdateFailed) = nodes[0].node.send_payment(route.clone(), payment_hash_2) {} else { panic!(); } - check_added_monitors!(nodes[0], 1); - - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - assert_eq!(nodes[0].node.list_channels().len(), 1); - - // Claim the previous payment, which will result in a update_fulfill_htlc/CS from nodes[1] - // but nodes[0] won't respond since it is frozen. - assert!(nodes[1].node.claim_funds(payment_preimage_1)); - check_added_monitors!(nodes[1], 1); - let events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - let (bs_initial_fulfill, bs_initial_commitment_signed) = match events_2[0] { - MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - assert!(update_add_htlcs.is_empty()); - assert_eq!(update_fulfill_htlcs.len(), 1); - assert!(update_fail_htlcs.is_empty()); - assert!(update_fail_malformed_htlcs.is_empty()); - assert!(update_fee.is_none()); - - if (disconnect_count & 16) == 0 { - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlcs[0]).unwrap(); - let events_3 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(*payment_preimage, payment_preimage_1); - }, - _ => panic!("Unexpected event"), - } - - if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::IgnoreError) }) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed) { - assert_eq!(err, "Previous monitor update failure prevented generation of RAA"); - } else { panic!(); } - } - - (update_fulfill_htlcs[0].clone(), commitment_signed.clone()) - }, - _ => panic!("Unexpected event"), - }; - - if disconnect_count & !disconnect_flags > 0 { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - } - - // Now fix monitor updating... - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - macro_rules! disconnect_reconnect_peers { () => { { - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); - assert_eq!(reestablish_1.len(), 1); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); - assert_eq!(reestablish_2.len(), 1); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); - let as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); - let bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); - - assert!(as_resp.0.is_none()); - assert!(bs_resp.0.is_none()); - - (reestablish_1, reestablish_2, as_resp, bs_resp) - } } } - - let (payment_event, initial_revoke_and_ack) = if disconnect_count & !disconnect_flags > 0 { - assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]); - assert_eq!(reestablish_1.len(), 1); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]); - assert_eq!(reestablish_2.len(), 1); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]).unwrap(); - check_added_monitors!(nodes[0], 0); - let mut as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]); - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]).unwrap(); - check_added_monitors!(nodes[1], 0); - let mut bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]); - - assert!(as_resp.0.is_none()); - assert!(bs_resp.0.is_none()); - - assert!(bs_resp.1.is_none()); - if (disconnect_count & 16) == 0 { - assert!(bs_resp.2.is_none()); - - assert!(as_resp.1.is_some()); - assert!(as_resp.2.is_some()); - assert!(as_resp.3 == RAACommitmentOrder::CommitmentFirst); - } else { - assert!(bs_resp.2.as_ref().unwrap().update_add_htlcs.is_empty()); - assert!(bs_resp.2.as_ref().unwrap().update_fail_htlcs.is_empty()); - assert!(bs_resp.2.as_ref().unwrap().update_fail_malformed_htlcs.is_empty()); - assert!(bs_resp.2.as_ref().unwrap().update_fee.is_none()); - assert!(bs_resp.2.as_ref().unwrap().update_fulfill_htlcs == vec![bs_initial_fulfill]); - assert!(bs_resp.2.as_ref().unwrap().commitment_signed == bs_initial_commitment_signed); - - assert!(as_resp.1.is_none()); - - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().update_fulfill_htlcs[0]).unwrap(); - let events_3 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_3.len(), 1); - match events_3[0] { - Event::PaymentSent { ref payment_preimage } => { - assert_eq!(*payment_preimage, payment_preimage_1); - }, - _ => panic!("Unexpected event"), - } - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().commitment_signed).unwrap(); - let as_resp_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - as_resp.1 = Some(as_resp_raa); - bs_resp.2 = None; - } - - if disconnect_count & !disconnect_flags > 1 { - let (second_reestablish_1, second_reestablish_2, second_as_resp, second_bs_resp) = disconnect_reconnect_peers!(); - - if (disconnect_count & 16) == 0 { - assert!(reestablish_1 == second_reestablish_1); - assert!(reestablish_2 == second_reestablish_2); - } - assert!(as_resp == second_as_resp); - assert!(bs_resp == second_bs_resp); - } - - (SendEvent::from_commitment_update(nodes[1].node.get_our_node_id(), as_resp.2.unwrap()), as_resp.1.unwrap()) - } else { - let mut events_4 = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events_4.len(), 2); - (SendEvent::from_event(events_4.remove(0)), match events_4[0] { - MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => { - assert_eq!(*node_id, nodes[1].node.get_our_node_id()); - msg.clone() - }, - _ => panic!("Unexpected event"), - }) - }; - - assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id()); - - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg).unwrap(); - let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // nodes[1] is awaiting an RAA from nodes[0] still so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - if disconnect_count & !disconnect_flags > 2 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.unwrap() == initial_revoke_and_ack); - assert!(bs_resp.1.unwrap() == bs_revoke_and_ack); - - assert!(as_resp.2.is_none()); - assert!(bs_resp.2.is_none()); - } - - let as_commitment_update; - let bs_second_commitment_update; - - macro_rules! handle_bs_raa { () => { - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - as_commitment_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - assert!(as_commitment_update.update_add_htlcs.is_empty()); - assert!(as_commitment_update.update_fulfill_htlcs.is_empty()); - assert!(as_commitment_update.update_fail_htlcs.is_empty()); - assert!(as_commitment_update.update_fail_malformed_htlcs.is_empty()); - assert!(as_commitment_update.update_fee.is_none()); - check_added_monitors!(nodes[0], 1); - } } - - macro_rules! handle_initial_raa { () => { - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &initial_revoke_and_ack).unwrap(); - bs_second_commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(bs_second_commitment_update.update_add_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fulfill_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fail_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fail_malformed_htlcs.is_empty()); - assert!(bs_second_commitment_update.update_fee.is_none()); - check_added_monitors!(nodes[1], 1); - } } - - if (disconnect_count & 8) == 0 { - handle_bs_raa!(); - - if disconnect_count & !disconnect_flags > 3 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.unwrap() == initial_revoke_and_ack); - assert!(bs_resp.1.is_none()); - - assert!(as_resp.2.unwrap() == as_commitment_update); - assert!(bs_resp.2.is_none()); - - assert!(as_resp.3 == RAACommitmentOrder::RevokeAndACKFirst); - } - - handle_initial_raa!(); - - if disconnect_count & !disconnect_flags > 4 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.is_none()); - assert!(bs_resp.1.is_none()); - - assert!(as_resp.2.unwrap() == as_commitment_update); - assert!(bs_resp.2.unwrap() == bs_second_commitment_update); - } - } else { - handle_initial_raa!(); - - if disconnect_count & !disconnect_flags > 3 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.is_none()); - assert!(bs_resp.1.unwrap() == bs_revoke_and_ack); - - assert!(as_resp.2.is_none()); - assert!(bs_resp.2.unwrap() == bs_second_commitment_update); - - assert!(bs_resp.3 == RAACommitmentOrder::RevokeAndACKFirst); - } - - handle_bs_raa!(); - - if disconnect_count & !disconnect_flags > 4 { - let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!(); - - assert!(as_resp.1.is_none()); - assert!(bs_resp.1.is_none()); - - assert!(as_resp.2.unwrap() == as_commitment_update); - assert!(bs_resp.2.unwrap() == bs_second_commitment_update); - } - } - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment_update.commitment_signed).unwrap(); - let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[0], 1); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_update.commitment_signed).unwrap(); - let bs_second_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - // No commitment_signed so get_event_msg's assert(len == 1) passes - check_added_monitors!(nodes[1], 1); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack).unwrap(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke_and_ack).unwrap(); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[0], 1); - - expect_pending_htlcs_forwardable!(nodes[1]); - - let events_5 = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events_5.len(), 1); - match events_5[0] { - Event::PaymentReceived { ref payment_hash, amt } => { - assert_eq!(payment_hash_2, *payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - } - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); -} - -#[test] -fn test_monitor_temporary_update_fail_a() { - do_test_monitor_temporary_update_fail(0); - do_test_monitor_temporary_update_fail(1); - do_test_monitor_temporary_update_fail(2); - do_test_monitor_temporary_update_fail(3); - do_test_monitor_temporary_update_fail(4); - do_test_monitor_temporary_update_fail(5); -} - -#[test] -fn test_monitor_temporary_update_fail_b() { - do_test_monitor_temporary_update_fail(2 | 8); - do_test_monitor_temporary_update_fail(3 | 8); - do_test_monitor_temporary_update_fail(4 | 8); - do_test_monitor_temporary_update_fail(5 | 8); -} - -#[test] -fn test_monitor_temporary_update_fail_c() { - do_test_monitor_temporary_update_fail(1 | 16); - do_test_monitor_temporary_update_fail(2 | 16); - do_test_monitor_temporary_update_fail(3 | 16); - do_test_monitor_temporary_update_fail(2 | 8 | 16); - do_test_monitor_temporary_update_fail(3 | 8 | 16); -} - -#[test] -fn test_monitor_update_fail_cs() { - // Tests handling of a monitor update failure when processing an incoming commitment_signed - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[0].node.send_payment(route, our_payment_hash).unwrap(); - check_added_monitors!(nodes[0], 1); - - let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event.commitment_msg).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[1], 1); - let responses = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(responses.len(), 2); - - match responses[0] { - MessageSendEvent::SendRevokeAndACK { ref msg, ref node_id } => { - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &msg).unwrap(); - check_added_monitors!(nodes[0], 1); - }, - _ => panic!("Unexpected event"), - } - match responses[1] { - MessageSendEvent::UpdateHTLCs { ref updates, ref node_id } => { - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(*node_id, nodes[0].node.get_our_node_id()); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &updates.commitment_signed).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[0], 1); - assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); - }, - _ => panic!("Unexpected event"), - } - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - let final_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &final_raa).unwrap(); - check_added_monitors!(nodes[1], 1); - - expect_pending_htlcs_forwardable!(nodes[1]); - - let events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentReceived { payment_hash, amt } => { - assert_eq!(payment_hash, our_payment_hash); - assert_eq!(amt, 1000000); - }, - _ => panic!("Unexpected event"), - }; - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage); -} - -#[test] -fn test_monitor_update_fail_no_rebroadcast() { - // Tests handling of a monitor update failure when no message rebroadcasting on - // test_restore_channel_monitor() is required. Backported from - // chanmon_fail_consistency fuzz tests. - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_1, our_payment_hash) = get_payment_preimage_hash!(nodes[0]); - nodes[0].node.send_payment(route, our_payment_hash).unwrap(); - check_added_monitors!(nodes[0], 1); - - let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - let bs_raa = commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true, false, true); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &bs_raa).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - expect_pending_htlcs_forwardable!(nodes[1]); - - let events = nodes[1].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentReceived { payment_hash, .. } => { - assert_eq!(payment_hash, our_payment_hash); - }, - _ => panic!("Unexpected event"), - } - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); -} - -#[test] -fn test_monitor_update_raa_while_paused() { - // Tests handling of an RAA while monitor updating has already been marked failed. - // Backported from chanmon_fail_consistency fuzz tests as this used to be broken. - let mut nodes = create_network(2); - create_announced_chan_between_nodes(&nodes, 0, 1); - - send_payment(&nodes[0], &[&nodes[1]], 5000000); - - let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_1, our_payment_hash_1) = get_payment_preimage_hash!(nodes[0]); - nodes[0].node.send_payment(route, our_payment_hash_1).unwrap(); - check_added_monitors!(nodes[0], 1); - let send_event_1 = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - - let route = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - let (payment_preimage_2, our_payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - nodes[1].node.send_payment(route, our_payment_hash_2).unwrap(); - check_added_monitors!(nodes[1], 1); - let send_event_2 = SendEvent::from_event(nodes[1].node.get_and_clear_pending_msg_events().remove(0)); - - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event_1.msgs[0]).unwrap(); - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event_1.commitment_msg).unwrap(); - check_added_monitors!(nodes[1], 1); - let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_2.msgs[0]).unwrap(); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_2.commitment_msg).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[0], 1); - - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa).unwrap_err() { - assert_eq!(err, "Previous monitor update failure prevented responses to RAA"); - } else { panic!(); } - check_added_monitors!(nodes[0], 1); - - *nodes[0].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[0].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[0], 1); - - let as_update_raa = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id()); - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_update_raa.0).unwrap(); - check_added_monitors!(nodes[1], 1); - let bs_cs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - - nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_update_raa.1).unwrap(); - check_added_monitors!(nodes[1], 1); - let bs_second_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id()); - - nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_cs.commitment_signed).unwrap(); - check_added_monitors!(nodes[0], 1); - let as_second_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - - nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_raa).unwrap(); - check_added_monitors!(nodes[0], 1); - expect_pending_htlcs_forwardable!(nodes[0]); - expect_payment_received!(nodes[0], our_payment_hash_2, 1000000); - - nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_raa).unwrap(); - check_added_monitors!(nodes[1], 1); - expect_pending_htlcs_forwardable!(nodes[1]); - expect_payment_received!(nodes[1], our_payment_hash_1, 1000000); - - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1); - claim_payment(&nodes[1], &[&nodes[0]], payment_preimage_2); -} - -fn do_test_monitor_update_fail_raa(test_ignore_second_cs: bool) { - // Tests handling of a monitor update failure when processing an incoming RAA - let mut nodes = create_network(3); - create_announced_chan_between_nodes(&nodes, 0, 1); - let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2); - - // Rebalance a bit so that we can send backwards from 2 to 1. - send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000); - - // Route a first payment that we'll fail backwards - let (_, payment_hash_1) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); - - // Fail the payment backwards, failing the monitor update on nodes[1]'s receipt of the RAA - assert!(nodes[2].node.fail_htlc_backwards(&payment_hash_1, 0)); - expect_pending_htlcs_forwardable!(nodes[2]); - check_added_monitors!(nodes[2], 1); - - let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - - let bs_revoke_and_ack = commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false, true, false, true); - check_added_monitors!(nodes[0], 0); - - // While the second channel is AwaitingRAA, forward a second payment to get it into the - // holding cell. - let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - nodes[0].node.send_payment(route, payment_hash_2).unwrap(); - check_added_monitors!(nodes[0], 1); - - let mut send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false); - - expect_pending_htlcs_forwardable!(nodes[1]); - check_added_monitors!(nodes[1], 0); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - // Now fail monitor updating. - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - check_added_monitors!(nodes[1], 1); - - // Attempt to forward a third payment but fail due to the second channel being unavailable - // for forwarding. - - let (_, payment_hash_3) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - nodes[0].node.send_payment(route, payment_hash_3).unwrap(); - check_added_monitors!(nodes[0], 1); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); // We succeed in updating the monitor for the first channel - send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true); - check_added_monitors!(nodes[1], 0); - - let mut events_2 = nodes[1].node.get_and_clear_pending_msg_events(); - assert_eq!(events_2.len(), 1); - match events_2.remove(0) { - MessageSendEvent::UpdateHTLCs { node_id, updates } => { - assert_eq!(node_id, nodes[0].node.get_our_node_id()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false, true); - - let msg_events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(msg_events.len(), 1); - match msg_events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => { - assert_eq!(msg.contents.short_channel_id, chan_2.0.contents.short_channel_id); - assert_eq!(msg.contents.flags & 2, 2); // temp disabled - }, - _ => panic!("Unexpected event"), - } - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events[0] { - assert_eq!(payment_hash, payment_hash_3); - assert!(!rejected_by_dest); - } else { panic!("Unexpected event!"); } - }, - _ => panic!("Unexpected event type!"), - }; - - let (payment_preimage_4, payment_hash_4) = if test_ignore_second_cs { - // Try to route another payment backwards from 2 to make sure 1 holds off on responding - let (payment_preimage_4, payment_hash_4) = get_payment_preimage_hash!(nodes[0]); - let route = nodes[2].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap(); - nodes[2].node.send_payment(route, payment_hash_4).unwrap(); - check_added_monitors!(nodes[2], 1); - - send_event = SendEvent::from_event(nodes[2].node.get_and_clear_pending_msg_events().remove(0)); - nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::IgnoreError) }) = nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &send_event.commitment_msg) { - assert_eq!(err, "Previous monitor update failure prevented generation of RAA"); - } else { panic!(); } - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[1].node.get_and_clear_pending_events().is_empty()); - (Some(payment_preimage_4), Some(payment_hash_4)) - } else { (None, None) }; - - // Restore monitor updating, ensuring we immediately get a fail-back update and a - // update_add update. - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[1], 1); - expect_pending_htlcs_forwardable!(nodes[1]); - check_added_monitors!(nodes[1], 1); - - let mut events_3 = nodes[1].node.get_and_clear_pending_msg_events(); - if test_ignore_second_cs { - assert_eq!(events_3.len(), 3); - } else { - assert_eq!(events_3.len(), 2); - } - - // Note that the ordering of the events for different nodes is non-prescriptive, though the - // ordering of the two events that both go to nodes[2] have to stay in the same order. - let messages_a = match events_3.pop().unwrap() { - MessageSendEvent::UpdateHTLCs { node_id, mut updates } => { - assert_eq!(node_id, nodes[0].node.get_our_node_id()); - assert!(updates.update_fulfill_htlcs.is_empty()); - assert_eq!(updates.update_fail_htlcs.len(), 1); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - (updates.update_fail_htlcs.remove(0), updates.commitment_signed) - }, - _ => panic!("Unexpected event type!"), - }; - let raa = if test_ignore_second_cs { - match events_3.remove(1) { - MessageSendEvent::SendRevokeAndACK { node_id, msg } => { - assert_eq!(node_id, nodes[2].node.get_our_node_id()); - Some(msg.clone()) - }, - _ => panic!("Unexpected event"), - } - } else { None }; - let send_event_b = SendEvent::from_event(events_3.remove(0)); - assert_eq!(send_event_b.node_id, nodes[2].node.get_our_node_id()); - - // Now deliver the new messages... - - nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &messages_a.0).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], messages_a.1, false); - let events_4 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_4.len(), 1); - if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events_4[0] { - assert_eq!(payment_hash, payment_hash_1); - assert!(rejected_by_dest); - } else { panic!("Unexpected event!"); } - - nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_b.msgs[0]).unwrap(); - if test_ignore_second_cs { - nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_b.commitment_msg).unwrap(); - check_added_monitors!(nodes[2], 1); - let bs_revoke_and_ack = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &raa.unwrap()).unwrap(); - check_added_monitors!(nodes[2], 1); - let bs_cs = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(bs_cs.update_add_htlcs.is_empty()); - assert!(bs_cs.update_fail_htlcs.is_empty()); - assert!(bs_cs.update_fail_malformed_htlcs.is_empty()); - assert!(bs_cs.update_fulfill_htlcs.is_empty()); - assert!(bs_cs.update_fee.is_none()); - - nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack).unwrap(); - check_added_monitors!(nodes[1], 1); - let as_cs = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id()); - assert!(as_cs.update_add_htlcs.is_empty()); - assert!(as_cs.update_fail_htlcs.is_empty()); - assert!(as_cs.update_fail_malformed_htlcs.is_empty()); - assert!(as_cs.update_fulfill_htlcs.is_empty()); - assert!(as_cs.update_fee.is_none()); - - nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_cs.commitment_signed).unwrap(); - check_added_monitors!(nodes[1], 1); - let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id()); - - nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_cs.commitment_signed).unwrap(); - check_added_monitors!(nodes[2], 1); - let bs_second_raa = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()); - - nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa).unwrap(); - check_added_monitors!(nodes[2], 1); - assert!(nodes[2].node.get_and_clear_pending_msg_events().is_empty()); - - nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_second_raa).unwrap(); - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - } else { - commitment_signed_dance!(nodes[2], nodes[1], send_event_b.commitment_msg, false); - } - - expect_pending_htlcs_forwardable!(nodes[2]); - - let events_6 = nodes[2].node.get_and_clear_pending_events(); - assert_eq!(events_6.len(), 1); - match events_6[0] { - Event::PaymentReceived { payment_hash, .. } => { assert_eq!(payment_hash, payment_hash_2); }, - _ => panic!("Unexpected event"), - }; - - if test_ignore_second_cs { - expect_pending_htlcs_forwardable!(nodes[1]); - check_added_monitors!(nodes[1], 1); - - send_event = SendEvent::from_node(&nodes[1]); - assert_eq!(send_event.node_id, nodes[0].node.get_our_node_id()); - assert_eq!(send_event.msgs.len(), 1); - nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event.msgs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], send_event.commitment_msg, false); - - expect_pending_htlcs_forwardable!(nodes[0]); - - let events_9 = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events_9.len(), 1); - match events_9[0] { - Event::PaymentReceived { payment_hash, .. } => assert_eq!(payment_hash, payment_hash_4.unwrap()), - _ => panic!("Unexpected event"), - }; - claim_payment(&nodes[2], &[&nodes[1], &nodes[0]], payment_preimage_4.unwrap()); - } - - claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage_2); -} - -#[test] -fn test_monitor_update_fail_raa() { - do_test_monitor_update_fail_raa(false); - do_test_monitor_update_fail_raa(true); -} - -#[test] -fn test_monitor_update_fail_reestablish() { - // Simple test for message retransmission after monitor update failure on - // channel_reestablish generating a monitor update (which comes from freeing holding cell - // HTLCs). - let mut nodes = create_network(3); - create_announced_chan_between_nodes(&nodes, 0, 1); - create_announced_chan_between_nodes(&nodes, 1, 2); - - let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); - - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - - assert!(nodes[2].node.claim_funds(our_payment_preimage)); - check_added_monitors!(nodes[2], 1); - let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - check_added_monitors!(nodes[1], 1); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure); - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - - let as_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()); - let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish).unwrap(); - - if let msgs::HandleError { err, action: Some(msgs::ErrorAction::IgnoreError) } = nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish).unwrap_err() { - assert_eq!(err, "Failed to update ChannelMonitor"); - } else { panic!(); } - check_added_monitors!(nodes[1], 1); - - nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); - - nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id()); - nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id()); - - assert!(as_reestablish == get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id())); - assert!(bs_reestablish == get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id())); - - nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish).unwrap(); - - nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish).unwrap(); - check_added_monitors!(nodes[1], 0); - assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - - *nodes[1].chan_monitor.update_ret.lock().unwrap() = Ok(()); - nodes[1].node.test_restore_channel_monitor(); - check_added_monitors!(nodes[1], 1); - - updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); - assert!(updates.update_add_htlcs.is_empty()); - assert!(updates.update_fail_htlcs.is_empty()); - assert!(updates.update_fail_malformed_htlcs.is_empty()); - assert!(updates.update_fee.is_none()); - assert_eq!(updates.update_fulfill_htlcs.len(), 1); - nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]).unwrap(); - commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false); - - let events = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - match events[0] { - Event::PaymentSent { payment_preimage, .. } => assert_eq!(payment_preimage, our_payment_preimage), - _ => panic!("Unexpected event"), - } -} - #[test] fn test_invalid_channel_announcement() { //Test BOLT 7 channel_announcement msg requirement for final node, gather data to build customed channel_announcement msgs diff --git a/src/ln/mod.rs b/src/ln/mod.rs index 2c04aed11..9b1b442a9 100644 --- a/src/ln/mod.rs +++ b/src/ln/mod.rs @@ -28,3 +28,5 @@ mod onion_utils; #[macro_use] mod functional_test_utils; #[cfg(test)] mod functional_tests; +#[cfg(test)] +mod chanmon_update_fail_tests;