Updated ClosureReason::HolderForceClosed with broadcasted txn.

Author: mhrheaume

lightning-persister/src/fs_store.rs

@@ -447,7 +447,7 @@ mod tests {
 		let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
 		let error_message = "Channel force-closed";
 		nodes[1].node.force_close_broadcasting_latest_txn(&chan.2, &nodes[0].node.get_our_node_id(), error_message.to_string()).unwrap();
-		check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 100000);
+		check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[0].node.get_our_node_id()], 100000);
 		let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
 
 		// Set the store's directory to read-only, which should result in
@@ -485,7 +485,7 @@ mod tests {
 		let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
 		let error_message = "Channel force-closed";
 		nodes[1].node.force_close_broadcasting_latest_txn(&chan.2, &nodes[0].node.get_our_node_id(), error_message.to_string()).unwrap();
-		check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 100000);
+		check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[0].node.get_our_node_id()], 100000);
 		let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
 		let update_map = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap();
 		let update_id = update_map.get(&added_monitors[0].1.channel_id()).unwrap();

lightning-persister/src/test_utils.rs

@@ -106,7 +106,7 @@ pub(crate) fn do_test_store<K: KVStore>(store_0: &K, store_1: &K) {
 	// updates.
 	let error_message = "Channel force-closed";
 	nodes[0].node.force_close_broadcasting_latest_txn(&nodes[0].node.list_channels()[0].channel_id, &nodes[1].node.get_our_node_id(), error_message.to_string()).unwrap();
-	check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+	check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[1].node.get_our_node_id()], 100000);
 	check_closed_broadcast!(nodes[0], true);
 	check_added_monitors!(nodes[0], 1);
 

lightning/src/chain/channelmonitor.rs

@@ -2873,7 +2873,7 @@ impl<Signer: EcdsaChannelSigner> ChannelMonitorImpl<Signer> {
 		F::Target: FeeEstimator,
 		L::Target: Logger,
 	{
-		let (claimable_outpoints, _) = self.generate_claimable_outpoints_and_watch_outputs(ClosureReason::HolderForceClosed);
+		let (claimable_outpoints, _) = self.generate_claimable_outpoints_and_watch_outputs(ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) });
 		self.onchain_tx_handler.update_claims_view_from_requests(
 			claimable_outpoints, self.best_block.height, self.best_block.height, broadcaster,
 			fee_estimator, logger

lightning/src/events/mod.rs

@@ -278,7 +278,21 @@ pub enum ClosureReason {
 	/// Closure generated from [`ChannelManager::force_close_channel`], called by the user.
 	///
 	/// [`ChannelManager::force_close_channel`]: crate::ln::channelmanager::ChannelManager::force_close_channel.
-	HolderForceClosed,
+	HolderForceClosed {
+		/// Whether or not the latest transaction was broadcasted when the channel was force
+		/// closed.
+		///
+		/// Channels closed using [`ChannelManager::force_close_broadcasting_latest_txn`] will have
+		/// this field set to true, whereas channels closed using [`ChannelManager::force_close_without_broadcasting_txn`]
+		/// or force-closed prior to being funded will have this field set to false.
+		///
+		/// This will be `None` for objects generated or written by LDK 0.0.123 and
+		/// earlier.
+		///
+		/// [`ChannelManager::force_close_broadcasting_latest_txn`]: crate::ln::channelmanager::ChannelManager::force_close_broadcasting_latest_txn.
+		/// [`ChannelManager::force_close_without_broadcasting_txn`]: crate::ln::channelmanager::ChannelManager::force_close_without_broadcasting_txn.
+		broadcasted_latest_txn: Option<bool>
+	},
 	/// The channel was closed after negotiating a cooperative close and we've now broadcasted
 	/// the cooperative close transaction. Note the shutdown may have been initiated by us.
 	///
@@ -340,7 +354,14 @@ impl core::fmt::Display for ClosureReason {
 			ClosureReason::CounterpartyForceClosed { peer_msg } => {
 				f.write_fmt(format_args!("counterparty force-closed with message: {}", peer_msg))
 			},
-			ClosureReason::HolderForceClosed => f.write_str("user force-closed the channel"),
+			ClosureReason::HolderForceClosed { broadcasted_latest_txn } => {
+				f.write_str("user force-closed the channel")?;
+				if let Some(brodcasted) = broadcasted_latest_txn {
+					write!(f, " and {} the latest transaction", if *brodcasted { "broadcasted" } else { "did not broadcast" })
+				} else {
+					Ok(())
+				}
+			},
 			ClosureReason::LegacyCooperativeClosure => f.write_str("the channel was cooperatively closed"),
 			ClosureReason::CounterpartyInitiatedCooperativeClosure => f.write_str("the channel was cooperatively closed by our peer"),
 			ClosureReason::LocallyInitiatedCooperativeClosure => f.write_str("the channel was cooperatively closed by us"),
@@ -362,7 +383,7 @@ impl core::fmt::Display for ClosureReason {
 impl_writeable_tlv_based_enum_upgradable!(ClosureReason,
 	(0, CounterpartyForceClosed) => { (1, peer_msg, required) },
 	(1, FundingTimedOut) => {},
-	(2, HolderForceClosed) => {},
+	(2, HolderForceClosed) => { (1, broadcasted_latest_txn, option) },
 	(6, CommitmentTxConfirmed) => {},
 	(4, LegacyCooperativeClosure) => {},
 	(8, ProcessingError) => { (1, err, required) },

lightning/src/ln/async_signer_tests.rs

@@ -373,7 +373,7 @@ fn do_test_async_holder_signatures(anchors: bool, remote_commitment: bool) {
 		nodes[1].node.force_close_broadcasting_latest_txn(&chan_id, &nodes[0].node.get_our_node_id(), error_message.to_string()).unwrap();
 		check_added_monitors(&nodes[1], 1);
 		check_closed_broadcast(&nodes[1], 1, true);
-		check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed, false, &[nodes[0].node.get_our_node_id()], 100_000);
+		check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, false, &[nodes[0].node.get_our_node_id()], 100_000);
 	} else {
 		// We'll connect blocks until the sender has to go onchain to time out the HTLC.
 		connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1);

lightning/src/ln/chanmon_update_fail_tests.rs

@@ -216,7 +216,7 @@ fn do_test_simple_monitor_temporary_update_fail(disconnect: bool) {
 	// PaymentPathFailed event
 
 	assert_eq!(nodes[0].node.list_channels().len(), 0);
-	check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+	check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -3232,13 +3232,13 @@ fn do_test_durable_preimages_on_closed_channel(close_chans_before_reload: bool,
 			chanmon_cfgs[1].persister.set_update_ret(ChannelMonitorUpdateStatus::InProgress);
 			nodes[1].node.force_close_broadcasting_latest_txn(&chan_id_bc, &nodes[2].node.get_our_node_id(), error_message.to_string()).unwrap();
 			check_closed_broadcast(&nodes[1], 1, true);
-			check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed, false, &[nodes[2].node.get_our_node_id()], 100000);
+			check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, false, &[nodes[2].node.get_our_node_id()], 100000);
 		}
 
 		chanmon_cfgs[1].persister.set_update_ret(ChannelMonitorUpdateStatus::InProgress);
 		nodes[1].node.force_close_broadcasting_latest_txn(&chan_id_ab, &nodes[0].node.get_our_node_id(), error_message.to_string()).unwrap();
 		check_closed_broadcast(&nodes[1], 1, true);
-		check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed, false, &[nodes[0].node.get_our_node_id()], 100000);
+		check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, false, &[nodes[0].node.get_our_node_id()], 100000);
 	}
 
 	// Now reload node B
@@ -3260,7 +3260,7 @@ fn do_test_durable_preimages_on_closed_channel(close_chans_before_reload: bool,
 	let error_message = "Channel force-closed";
 
 	nodes[0].node.force_close_broadcasting_latest_txn(&chan_id_ab, &nodes[1].node.get_our_node_id(), error_message.to_string()).unwrap();
-	check_closed_event(&nodes[0], 1, ClosureReason::HolderForceClosed, false, &[nodes[1].node.get_our_node_id()], 100000);
+	check_closed_event(&nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, false, &[nodes[1].node.get_our_node_id()], 100000);
 	let as_closing_tx = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
 	assert_eq!(as_closing_tx.len(), 1);
 
@@ -3403,7 +3403,7 @@ fn do_test_reload_mon_update_completion_actions(close_during_reload: bool) {
 		nodes[0].node.force_close_broadcasting_latest_txn(&chan_id_ab, &nodes[1].node.get_our_node_id(), error_message.to_string()).unwrap();
 		check_added_monitors!(nodes[0], 1);
 		check_closed_broadcast!(nodes[0], true);
-		check_closed_event(&nodes[0], 1, ClosureReason::HolderForceClosed, false, &[nodes[1].node.get_our_node_id()], 100_000);
+		check_closed_event(&nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, false, &[nodes[1].node.get_our_node_id()], 100_000);
 		let as_closing_tx = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
 		mine_transaction_without_consistency_checks(&nodes[1], &as_closing_tx[0]);
 	}

lightning/src/ln/channelmanager.rs

@@ -3153,7 +3153,7 @@ where
 						}
 					} else {
 						let mut chan_phase = remove_channel_phase!(self, chan_phase_entry);
-						shutdown_result = Some(chan_phase.context_mut().force_shutdown(false, ClosureReason::HolderForceClosed));
+						shutdown_result = Some(chan_phase.context_mut().force_shutdown(false, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(false) }));
 					}
 				},
 				hash_map::Entry::Vacant(_) => {
@@ -3322,7 +3322,7 @@ where
 			let closure_reason = if let Some(peer_msg) = peer_msg {
 				ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString(peer_msg.to_string()) }
 			} else {
-				ClosureReason::HolderForceClosed
+				ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(broadcast) }
 			};
 			let logger = WithContext::from(&self.logger, Some(*peer_node_id), Some(*channel_id), None);
 			if let hash_map::Entry::Occupied(chan_phase_entry) = peer_state.channel_by_id.entry(channel_id.clone()) {
@@ -5497,7 +5497,7 @@ where
 					log_error!(logger,
 						"Force-closing pending channel with ID {} for not establishing in a timely manner", chan_id);
 					update_maps_on_chan_removal!(self, &context);
-					shutdown_channels.push(context.force_shutdown(false, ClosureReason::HolderForceClosed));
+					shutdown_channels.push(context.force_shutdown(false, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(false) }));
 					pending_msg_events.push(MessageSendEvent::HandleError {
 						node_id: counterparty_node_id,
 						action: msgs::ErrorAction::SendErrorMessage {
@@ -7984,7 +7984,7 @@ where
 										let reason = if let MonitorEvent::HolderForceClosedWithInfo { reason, .. } = monitor_event {
 											reason
 										} else {
-											ClosureReason::HolderForceClosed
+											ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }
 										};
 										failed_channels.push(chan.context.force_shutdown(false, reason.clone()));
 										if let Ok(update) = self.get_channel_update_for_broadcast(&chan) {
@@ -12458,7 +12458,7 @@ mod tests {
 
 		nodes[0].node.force_close_channel_with_peer(&chan.2, &nodes[1].node.get_our_node_id(), None, true).unwrap();
 		check_added_monitors!(nodes[0], 1);
-		check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+		check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[1].node.get_our_node_id()], 100000);
 
 		// Confirm that the channel_update was not sent immediately to node[1] but was cached.
 		let node_1_events = nodes[1].node.get_and_clear_pending_msg_events();
@@ -12517,7 +12517,7 @@ mod tests {
 		nodes[0].node.force_close_broadcasting_latest_txn(&chan.2, &nodes[1].node.get_our_node_id(), error_message.to_string()).unwrap();
 		check_closed_broadcast!(nodes[0], true);
 		check_added_monitors!(nodes[0], 1);
-		check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+		check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[1].node.get_our_node_id()], 100000);
 
 		{
 			// Assert that nodes[1] is awaiting removal for nodes[0] once nodes[1] has been
@@ -13254,7 +13254,7 @@ mod tests {
 		nodes[0].node.force_close_broadcasting_latest_txn(&chan_id, &nodes[1].node.get_our_node_id(), error_message.to_string()).unwrap();
 		check_closed_broadcast(&nodes[0], 1, true);
 		check_added_monitors(&nodes[0], 1);
-		check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+		check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed { broadcasted_latest_txn: Some(true) }, [nodes[1].node.get_our_node_id()], 100000);
 		{
 			let txn = nodes[0].tx_broadcaster.txn_broadcast();
 			assert_eq!(txn.len(), 1);