--- /dev/null
+//! 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"),
+ }
+}
projects / rust-lightning / blobdiff