1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! Functional tests which test the correct handling of ChannelMonitorUpdateErr returns from
12 //! There are a bunch of these as their handling is relatively error-prone so they are split out
13 //! here. See also the chanmon_fail_consistency fuzz test.
15 use bitcoin::blockdata::block::{Block, BlockHeader};
16 use bitcoin::blockdata::constants::genesis_block;
17 use bitcoin::hash_types::BlockHash;
18 use bitcoin::network::constants::Network;
19 use chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr};
20 use chain::transaction::OutPoint;
23 use ln::{PaymentPreimage, PaymentHash};
24 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure};
25 use ln::features::{InitFeatures, InvoiceFeatures};
27 use ln::msgs::{ChannelMessageHandler, ErrorAction, RoutingMessageHandler};
28 use routing::router::get_route;
29 use util::config::UserConfig;
30 use util::enforcing_trait_impls::EnforcingSigner;
31 use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
32 use util::errors::APIError;
33 use util::ser::{ReadableArgs, Writeable};
34 use util::test_utils::TestBroadcaster;
36 use bitcoin::hashes::sha256::Hash as Sha256;
37 use bitcoin::hashes::Hash;
39 use ln::functional_test_utils::*;
45 use sync::{Arc, Mutex};
47 // If persister_fail is true, we have the persister return a PermanentFailure
48 // instead of the higher-level ChainMonitor.
49 fn do_test_simple_monitor_permanent_update_fail(persister_fail: bool) {
50 // Test that we handle a simple permanent monitor update failure
51 let mut chanmon_cfgs = create_chanmon_cfgs(2);
52 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
53 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
54 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
55 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
56 let logger = test_utils::TestLogger::new();
58 let (_, payment_hash_1, payment_secret_1) = get_payment_preimage_hash!(&nodes[1]);
60 match persister_fail {
61 true => chanmon_cfgs[0].persister.set_update_ret(Err(ChannelMonitorUpdateErr::PermanentFailure)),
62 false => *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::PermanentFailure))
64 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
65 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
66 unwrap_send_err!(nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1)), true, APIError::ChannelUnavailable {..}, {});
67 check_added_monitors!(nodes[0], 2);
69 let events_1 = nodes[0].node.get_and_clear_pending_msg_events();
70 assert_eq!(events_1.len(), 2);
72 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
73 _ => panic!("Unexpected event"),
76 MessageSendEvent::HandleError { node_id, .. } => assert_eq!(node_id, nodes[1].node.get_our_node_id()),
77 _ => panic!("Unexpected event"),
80 // TODO: Once we hit the chain with the failure transaction we should check that we get a
81 // PaymentFailed event
83 assert_eq!(nodes[0].node.list_channels().len(), 0);
87 fn test_monitor_and_persister_update_fail() {
88 // Test that if both updating the `ChannelMonitor` and persisting the updated
89 // `ChannelMonitor` fail, then the failure from updating the `ChannelMonitor`
90 // one that gets returned.
91 let chanmon_cfgs = create_chanmon_cfgs(2);
92 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
93 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
94 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
96 // Create some initial channel
97 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
98 let outpoint = OutPoint { txid: chan.3.txid(), index: 0 };
100 // Rebalance the network to generate htlc in the two directions
101 send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000);
103 // Route an HTLC from node 0 to node 1 (but don't settle)
104 let preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000).0;
106 // Make a copy of the ChainMonitor so we can capture the error it returns on a
107 // bogus update. Note that if instead we updated the nodes[0]'s ChainMonitor
108 // directly, the node would fail to be `Drop`'d at the end because its
109 // ChannelManager and ChainMonitor would be out of sync.
110 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
111 let logger = test_utils::TestLogger::with_id(format!("node {}", 0));
112 let persister = test_utils::TestPersister::new();
113 let tx_broadcaster = TestBroadcaster {
114 txn_broadcasted: Mutex::new(Vec::new()),
115 // Because we will connect a block at height 200 below, we need the TestBroadcaster to know
116 // that we are at height 200 so that it doesn't think we're violating the time lock
117 // requirements of transactions broadcasted at that point.
118 blocks: Arc::new(Mutex::new(vec![(genesis_block(Network::Testnet).header, 200); 200])),
121 let monitors = nodes[0].chain_monitor.chain_monitor.monitors.read().unwrap();
122 let monitor = monitors.get(&outpoint).unwrap();
123 let mut w = test_utils::TestVecWriter(Vec::new());
124 monitor.write(&mut w).unwrap();
125 let new_monitor = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
126 &mut io::Cursor::new(&w.0), &test_utils::OnlyReadsKeysInterface {}).unwrap().1;
127 assert!(new_monitor == *monitor);
128 let chain_mon = test_utils::TestChainMonitor::new(Some(&chain_source), &tx_broadcaster, &logger, &chanmon_cfgs[0].fee_estimator, &persister, &node_cfgs[0].keys_manager);
129 assert!(chain_mon.watch_channel(outpoint, new_monitor).is_ok());
132 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
133 chain_mon.chain_monitor.block_connected(&Block { header, txdata: vec![] }, 200);
135 // Set the persister's return value to be a TemporaryFailure.
136 persister.set_update_ret(Err(ChannelMonitorUpdateErr::TemporaryFailure));
138 // Try to update ChannelMonitor
139 assert!(nodes[1].node.claim_funds(preimage));
140 check_added_monitors!(nodes[1], 1);
141 let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
142 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
143 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
144 if let Some(ref mut channel) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan.2) {
145 if let Ok((_, _, _, update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].fee_estimator, &node_cfgs[0].logger) {
146 // Check that even though the persister is returning a TemporaryFailure,
147 // because the update is bogus, ultimately the error that's returned
148 // should be a PermanentFailure.
149 if let Err(ChannelMonitorUpdateErr::PermanentFailure) = chain_mon.chain_monitor.update_channel(outpoint, update.clone()) {} else { panic!("Expected monitor error to be permanent"); }
150 logger.assert_log_contains("lightning::chain::chainmonitor".to_string(), "Failed to persist channel monitor update: TemporaryFailure".to_string(), 1);
151 if let Ok(_) = nodes[0].chain_monitor.update_channel(outpoint, update) {} else { assert!(false); }
152 } else { assert!(false); }
153 } else { assert!(false); };
155 check_added_monitors!(nodes[0], 1);
156 let events = nodes[0].node.get_and_clear_pending_events();
157 assert_eq!(events.len(), 1);
161 fn test_simple_monitor_permanent_update_fail() {
162 do_test_simple_monitor_permanent_update_fail(false);
164 // Test behavior when the persister returns a PermanentFailure.
165 do_test_simple_monitor_permanent_update_fail(true);
168 // If persister_fail is true, we have the persister return a TemporaryFailure instead of the
169 // higher-level ChainMonitor.
170 fn do_test_simple_monitor_temporary_update_fail(disconnect: bool, persister_fail: bool) {
171 // Test that we can recover from a simple temporary monitor update failure optionally with
172 // a disconnect in between
173 let mut chanmon_cfgs = create_chanmon_cfgs(2);
174 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
175 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
176 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
177 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
178 let logger = test_utils::TestLogger::new();
180 let (payment_preimage_1, payment_hash_1, payment_secret_1) = get_payment_preimage_hash!(&nodes[1]);
182 match persister_fail {
183 true => chanmon_cfgs[0].persister.set_update_ret(Err(ChannelMonitorUpdateErr::TemporaryFailure)),
184 false => *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure))
188 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
189 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
190 unwrap_send_err!(nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1)), false, APIError::MonitorUpdateFailed, {});
191 check_added_monitors!(nodes[0], 1);
194 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
195 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
196 assert_eq!(nodes[0].node.list_channels().len(), 1);
199 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
200 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
201 reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
204 match persister_fail {
205 true => chanmon_cfgs[0].persister.set_update_ret(Ok(())),
206 false => *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()))
208 let (outpoint, latest_update) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
209 nodes[0].node.channel_monitor_updated(&outpoint, latest_update);
210 check_added_monitors!(nodes[0], 0);
212 let mut events_2 = nodes[0].node.get_and_clear_pending_msg_events();
213 assert_eq!(events_2.len(), 1);
214 let payment_event = SendEvent::from_event(events_2.pop().unwrap());
215 assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id());
216 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
217 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
219 expect_pending_htlcs_forwardable!(nodes[1]);
221 let events_3 = nodes[1].node.get_and_clear_pending_events();
222 assert_eq!(events_3.len(), 1);
224 Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
225 assert_eq!(payment_hash_1, *payment_hash);
226 assert_eq!(amt, 1000000);
228 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
229 assert!(payment_preimage.is_none());
230 assert_eq!(payment_secret_1, *payment_secret);
232 _ => panic!("expected PaymentPurpose::InvoicePayment")
235 _ => panic!("Unexpected event"),
238 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
240 // Now set it to failed again...
241 let (_, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(&nodes[1]);
243 match persister_fail {
244 true => chanmon_cfgs[0].persister.set_update_ret(Err(ChannelMonitorUpdateErr::TemporaryFailure)),
245 false => *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure))
247 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
248 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
249 unwrap_send_err!(nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)), false, APIError::MonitorUpdateFailed, {});
250 check_added_monitors!(nodes[0], 1);
253 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
254 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
255 assert_eq!(nodes[0].node.list_channels().len(), 1);
258 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
259 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
260 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
263 // ...and make sure we can force-close a frozen channel
264 nodes[0].node.force_close_channel(&channel_id).unwrap();
265 check_added_monitors!(nodes[0], 1);
266 check_closed_broadcast!(nodes[0], true);
268 // TODO: Once we hit the chain with the failure transaction we should check that we get a
269 // PaymentFailed event
271 assert_eq!(nodes[0].node.list_channels().len(), 0);
275 fn test_simple_monitor_temporary_update_fail() {
276 do_test_simple_monitor_temporary_update_fail(false, false);
277 do_test_simple_monitor_temporary_update_fail(true, false);
279 // Test behavior when the persister returns a TemporaryFailure.
280 do_test_simple_monitor_temporary_update_fail(false, true);
281 do_test_simple_monitor_temporary_update_fail(true, true);
284 fn do_test_monitor_temporary_update_fail(disconnect_count: usize) {
285 let disconnect_flags = 8 | 16;
287 // Test that we can recover from a temporary monitor update failure with some in-flight
288 // HTLCs going on at the same time potentially with some disconnection thrown in.
289 // * First we route a payment, then get a temporary monitor update failure when trying to
290 // route a second payment. We then claim the first payment.
291 // * If disconnect_count is set, we will disconnect at this point (which is likely as
292 // TemporaryFailure likely indicates net disconnect which resulted in failing to update
293 // the ChannelMonitor on a watchtower).
294 // * If !(disconnect_count & 16) we deliver a update_fulfill_htlc/CS for the first payment
295 // immediately, otherwise we wait disconnect and deliver them via the reconnect
296 // channel_reestablish processing (ie disconnect_count & 16 makes no sense if
297 // disconnect_count & !disconnect_flags is 0).
298 // * We then update the channel monitor, reconnecting if disconnect_count is set and walk
299 // through message sending, potentially disconnect/reconnecting multiple times based on
300 // disconnect_count, to get the update_fulfill_htlc through.
301 // * We then walk through more message exchanges to get the original update_add_htlc
302 // through, swapping message ordering based on disconnect_count & 8 and optionally
303 // disconnect/reconnecting based on disconnect_count.
304 let chanmon_cfgs = create_chanmon_cfgs(2);
305 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
306 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
307 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
308 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
309 let logger = test_utils::TestLogger::new();
311 let (payment_preimage_1, _, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
313 // Now try to send a second payment which will fail to send
314 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[1]);
316 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
317 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
318 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
319 unwrap_send_err!(nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)), false, APIError::MonitorUpdateFailed, {});
320 check_added_monitors!(nodes[0], 1);
323 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
324 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
325 assert_eq!(nodes[0].node.list_channels().len(), 1);
327 // Claim the previous payment, which will result in a update_fulfill_htlc/CS from nodes[1]
328 // but nodes[0] won't respond since it is frozen.
329 assert!(nodes[1].node.claim_funds(payment_preimage_1));
330 check_added_monitors!(nodes[1], 1);
331 let events_2 = nodes[1].node.get_and_clear_pending_msg_events();
332 assert_eq!(events_2.len(), 1);
333 let (bs_initial_fulfill, bs_initial_commitment_signed) = match events_2[0] {
334 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 } } => {
335 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
336 assert!(update_add_htlcs.is_empty());
337 assert_eq!(update_fulfill_htlcs.len(), 1);
338 assert!(update_fail_htlcs.is_empty());
339 assert!(update_fail_malformed_htlcs.is_empty());
340 assert!(update_fee.is_none());
342 if (disconnect_count & 16) == 0 {
343 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlcs[0]);
344 let events_3 = nodes[0].node.get_and_clear_pending_events();
345 assert_eq!(events_3.len(), 1);
347 Event::PaymentSent { ref payment_preimage } => {
348 assert_eq!(*payment_preimage, payment_preimage_1);
350 _ => panic!("Unexpected event"),
353 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed);
354 check_added_monitors!(nodes[0], 1);
355 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
356 nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Previous monitor update failure prevented generation of RAA".to_string(), 1);
359 (update_fulfill_htlcs[0].clone(), commitment_signed.clone())
361 _ => panic!("Unexpected event"),
364 if disconnect_count & !disconnect_flags > 0 {
365 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
366 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
369 // Now fix monitor updating...
370 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
371 let (outpoint, latest_update) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
372 nodes[0].node.channel_monitor_updated(&outpoint, latest_update);
373 check_added_monitors!(nodes[0], 0);
375 macro_rules! disconnect_reconnect_peers { () => { {
376 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
377 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
379 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
380 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
381 assert_eq!(reestablish_1.len(), 1);
382 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
383 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
384 assert_eq!(reestablish_2.len(), 1);
386 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
387 let as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
388 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
389 let bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
391 assert!(as_resp.0.is_none());
392 assert!(bs_resp.0.is_none());
394 (reestablish_1, reestablish_2, as_resp, bs_resp)
397 let (payment_event, initial_revoke_and_ack) = if disconnect_count & !disconnect_flags > 0 {
398 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
399 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
401 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
402 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
403 assert_eq!(reestablish_1.len(), 1);
404 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
405 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
406 assert_eq!(reestablish_2.len(), 1);
408 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
409 check_added_monitors!(nodes[0], 0);
410 let mut as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
411 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
412 check_added_monitors!(nodes[1], 0);
413 let mut bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
415 assert!(as_resp.0.is_none());
416 assert!(bs_resp.0.is_none());
418 assert!(bs_resp.1.is_none());
419 if (disconnect_count & 16) == 0 {
420 assert!(bs_resp.2.is_none());
422 assert!(as_resp.1.is_some());
423 assert!(as_resp.2.is_some());
424 assert!(as_resp.3 == RAACommitmentOrder::CommitmentFirst);
426 assert!(bs_resp.2.as_ref().unwrap().update_add_htlcs.is_empty());
427 assert!(bs_resp.2.as_ref().unwrap().update_fail_htlcs.is_empty());
428 assert!(bs_resp.2.as_ref().unwrap().update_fail_malformed_htlcs.is_empty());
429 assert!(bs_resp.2.as_ref().unwrap().update_fee.is_none());
430 assert!(bs_resp.2.as_ref().unwrap().update_fulfill_htlcs == vec![bs_initial_fulfill]);
431 assert!(bs_resp.2.as_ref().unwrap().commitment_signed == bs_initial_commitment_signed);
433 assert!(as_resp.1.is_none());
435 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().update_fulfill_htlcs[0]);
436 let events_3 = nodes[0].node.get_and_clear_pending_events();
437 assert_eq!(events_3.len(), 1);
439 Event::PaymentSent { ref payment_preimage } => {
440 assert_eq!(*payment_preimage, payment_preimage_1);
442 _ => panic!("Unexpected event"),
445 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_resp.2.as_ref().unwrap().commitment_signed);
446 let as_resp_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
447 // No commitment_signed so get_event_msg's assert(len == 1) passes
448 check_added_monitors!(nodes[0], 1);
450 as_resp.1 = Some(as_resp_raa);
454 if disconnect_count & !disconnect_flags > 1 {
455 let (second_reestablish_1, second_reestablish_2, second_as_resp, second_bs_resp) = disconnect_reconnect_peers!();
457 if (disconnect_count & 16) == 0 {
458 assert!(reestablish_1 == second_reestablish_1);
459 assert!(reestablish_2 == second_reestablish_2);
461 assert!(as_resp == second_as_resp);
462 assert!(bs_resp == second_bs_resp);
465 (SendEvent::from_commitment_update(nodes[1].node.get_our_node_id(), as_resp.2.unwrap()), as_resp.1.unwrap())
467 let mut events_4 = nodes[0].node.get_and_clear_pending_msg_events();
468 assert_eq!(events_4.len(), 2);
469 (SendEvent::from_event(events_4.remove(0)), match events_4[0] {
470 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
471 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
474 _ => panic!("Unexpected event"),
478 assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id());
480 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
481 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
482 let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
483 // nodes[1] is awaiting an RAA from nodes[0] still so get_event_msg's assert(len == 1) passes
484 check_added_monitors!(nodes[1], 1);
486 if disconnect_count & !disconnect_flags > 2 {
487 let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!();
489 assert!(as_resp.1.unwrap() == initial_revoke_and_ack);
490 assert!(bs_resp.1.unwrap() == bs_revoke_and_ack);
492 assert!(as_resp.2.is_none());
493 assert!(bs_resp.2.is_none());
496 let as_commitment_update;
497 let bs_second_commitment_update;
499 macro_rules! handle_bs_raa { () => {
500 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack);
501 as_commitment_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
502 assert!(as_commitment_update.update_add_htlcs.is_empty());
503 assert!(as_commitment_update.update_fulfill_htlcs.is_empty());
504 assert!(as_commitment_update.update_fail_htlcs.is_empty());
505 assert!(as_commitment_update.update_fail_malformed_htlcs.is_empty());
506 assert!(as_commitment_update.update_fee.is_none());
507 check_added_monitors!(nodes[0], 1);
510 macro_rules! handle_initial_raa { () => {
511 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &initial_revoke_and_ack);
512 bs_second_commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
513 assert!(bs_second_commitment_update.update_add_htlcs.is_empty());
514 assert!(bs_second_commitment_update.update_fulfill_htlcs.is_empty());
515 assert!(bs_second_commitment_update.update_fail_htlcs.is_empty());
516 assert!(bs_second_commitment_update.update_fail_malformed_htlcs.is_empty());
517 assert!(bs_second_commitment_update.update_fee.is_none());
518 check_added_monitors!(nodes[1], 1);
521 if (disconnect_count & 8) == 0 {
524 if disconnect_count & !disconnect_flags > 3 {
525 let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!();
527 assert!(as_resp.1.unwrap() == initial_revoke_and_ack);
528 assert!(bs_resp.1.is_none());
530 assert!(as_resp.2.unwrap() == as_commitment_update);
531 assert!(bs_resp.2.is_none());
533 assert!(as_resp.3 == RAACommitmentOrder::RevokeAndACKFirst);
536 handle_initial_raa!();
538 if disconnect_count & !disconnect_flags > 4 {
539 let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!();
541 assert!(as_resp.1.is_none());
542 assert!(bs_resp.1.is_none());
544 assert!(as_resp.2.unwrap() == as_commitment_update);
545 assert!(bs_resp.2.unwrap() == bs_second_commitment_update);
548 handle_initial_raa!();
550 if disconnect_count & !disconnect_flags > 3 {
551 let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!();
553 assert!(as_resp.1.is_none());
554 assert!(bs_resp.1.unwrap() == bs_revoke_and_ack);
556 assert!(as_resp.2.is_none());
557 assert!(bs_resp.2.unwrap() == bs_second_commitment_update);
559 assert!(bs_resp.3 == RAACommitmentOrder::RevokeAndACKFirst);
564 if disconnect_count & !disconnect_flags > 4 {
565 let (_, _, as_resp, bs_resp) = disconnect_reconnect_peers!();
567 assert!(as_resp.1.is_none());
568 assert!(bs_resp.1.is_none());
570 assert!(as_resp.2.unwrap() == as_commitment_update);
571 assert!(bs_resp.2.unwrap() == bs_second_commitment_update);
575 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment_update.commitment_signed);
576 let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
577 // No commitment_signed so get_event_msg's assert(len == 1) passes
578 check_added_monitors!(nodes[0], 1);
580 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_update.commitment_signed);
581 let bs_second_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
582 // No commitment_signed so get_event_msg's assert(len == 1) passes
583 check_added_monitors!(nodes[1], 1);
585 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack);
586 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
587 check_added_monitors!(nodes[1], 1);
589 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke_and_ack);
590 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
591 check_added_monitors!(nodes[0], 1);
593 expect_pending_htlcs_forwardable!(nodes[1]);
595 let events_5 = nodes[1].node.get_and_clear_pending_events();
596 assert_eq!(events_5.len(), 1);
598 Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
599 assert_eq!(payment_hash_2, *payment_hash);
600 assert_eq!(amt, 1000000);
602 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
603 assert!(payment_preimage.is_none());
604 assert_eq!(payment_secret_2, *payment_secret);
606 _ => panic!("expected PaymentPurpose::InvoicePayment")
609 _ => panic!("Unexpected event"),
612 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2);
616 fn test_monitor_temporary_update_fail_a() {
617 do_test_monitor_temporary_update_fail(0);
618 do_test_monitor_temporary_update_fail(1);
619 do_test_monitor_temporary_update_fail(2);
620 do_test_monitor_temporary_update_fail(3);
621 do_test_monitor_temporary_update_fail(4);
622 do_test_monitor_temporary_update_fail(5);
626 fn test_monitor_temporary_update_fail_b() {
627 do_test_monitor_temporary_update_fail(2 | 8);
628 do_test_monitor_temporary_update_fail(3 | 8);
629 do_test_monitor_temporary_update_fail(4 | 8);
630 do_test_monitor_temporary_update_fail(5 | 8);
634 fn test_monitor_temporary_update_fail_c() {
635 do_test_monitor_temporary_update_fail(1 | 16);
636 do_test_monitor_temporary_update_fail(2 | 16);
637 do_test_monitor_temporary_update_fail(3 | 16);
638 do_test_monitor_temporary_update_fail(2 | 8 | 16);
639 do_test_monitor_temporary_update_fail(3 | 8 | 16);
643 fn test_monitor_update_fail_cs() {
644 // Tests handling of a monitor update failure when processing an incoming commitment_signed
645 let chanmon_cfgs = create_chanmon_cfgs(2);
646 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
647 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
648 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
649 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
650 let logger = test_utils::TestLogger::new();
652 let (payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(nodes[1]);
654 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
655 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
656 nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap();
657 check_added_monitors!(nodes[0], 1);
660 let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
661 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
663 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
664 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event.commitment_msg);
665 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
666 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
667 check_added_monitors!(nodes[1], 1);
668 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
670 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
671 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
672 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
673 check_added_monitors!(nodes[1], 0);
674 let responses = nodes[1].node.get_and_clear_pending_msg_events();
675 assert_eq!(responses.len(), 2);
678 MessageSendEvent::SendRevokeAndACK { ref msg, ref node_id } => {
679 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
680 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &msg);
681 check_added_monitors!(nodes[0], 1);
683 _ => panic!("Unexpected event"),
686 MessageSendEvent::UpdateHTLCs { ref updates, ref node_id } => {
687 assert!(updates.update_add_htlcs.is_empty());
688 assert!(updates.update_fulfill_htlcs.is_empty());
689 assert!(updates.update_fail_htlcs.is_empty());
690 assert!(updates.update_fail_malformed_htlcs.is_empty());
691 assert!(updates.update_fee.is_none());
692 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
694 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
695 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &updates.commitment_signed);
696 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
697 nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
698 check_added_monitors!(nodes[0], 1);
699 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
701 _ => panic!("Unexpected event"),
704 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
705 let (outpoint, latest_update) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
706 nodes[0].node.channel_monitor_updated(&outpoint, latest_update);
707 check_added_monitors!(nodes[0], 0);
709 let final_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
710 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &final_raa);
711 check_added_monitors!(nodes[1], 1);
713 expect_pending_htlcs_forwardable!(nodes[1]);
715 let events = nodes[1].node.get_and_clear_pending_events();
716 assert_eq!(events.len(), 1);
718 Event::PaymentReceived { payment_hash, ref purpose, amt } => {
719 assert_eq!(payment_hash, our_payment_hash);
720 assert_eq!(amt, 1000000);
722 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
723 assert!(payment_preimage.is_none());
724 assert_eq!(our_payment_secret, *payment_secret);
726 _ => panic!("expected PaymentPurpose::InvoicePayment")
729 _ => panic!("Unexpected event"),
732 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage);
736 fn test_monitor_update_fail_no_rebroadcast() {
737 // Tests handling of a monitor update failure when no message rebroadcasting on
738 // channel_monitor_updated() is required. Backported from chanmon_fail_consistency
740 let chanmon_cfgs = create_chanmon_cfgs(2);
741 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
742 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
743 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
744 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
745 let logger = test_utils::TestLogger::new();
747 let (payment_preimage_1, our_payment_hash, payment_secret_1) = get_payment_preimage_hash!(nodes[1]);
749 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
750 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
751 nodes[0].node.send_payment(&route, our_payment_hash, &Some(payment_secret_1)).unwrap();
752 check_added_monitors!(nodes[0], 1);
755 let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
756 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
757 let bs_raa = commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true, false, true);
759 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
760 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &bs_raa);
761 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
762 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
763 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
764 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
765 check_added_monitors!(nodes[1], 1);
767 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
768 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
769 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
770 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
771 check_added_monitors!(nodes[1], 0);
772 expect_pending_htlcs_forwardable!(nodes[1]);
774 let events = nodes[1].node.get_and_clear_pending_events();
775 assert_eq!(events.len(), 1);
777 Event::PaymentReceived { payment_hash, .. } => {
778 assert_eq!(payment_hash, our_payment_hash);
780 _ => panic!("Unexpected event"),
783 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
787 fn test_monitor_update_raa_while_paused() {
788 // Tests handling of an RAA while monitor updating has already been marked failed.
789 // Backported from chanmon_fail_consistency fuzz tests as this used to be broken.
790 let chanmon_cfgs = create_chanmon_cfgs(2);
791 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
792 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
793 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
794 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
795 let logger = test_utils::TestLogger::new();
797 send_payment(&nodes[0], &[&nodes[1]], 5000000);
798 let (payment_preimage_1, our_payment_hash_1, our_payment_secret_1) = get_payment_preimage_hash!(nodes[1]);
800 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
801 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
802 nodes[0].node.send_payment(&route, our_payment_hash_1, &Some(our_payment_secret_1)).unwrap();
803 check_added_monitors!(nodes[0], 1);
805 let send_event_1 = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
807 let (payment_preimage_2, our_payment_hash_2, our_payment_secret_2) = get_payment_preimage_hash!(nodes[0]);
809 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
810 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
811 nodes[1].node.send_payment(&route, our_payment_hash_2, &Some(our_payment_secret_2)).unwrap();
812 check_added_monitors!(nodes[1], 1);
814 let send_event_2 = SendEvent::from_event(nodes[1].node.get_and_clear_pending_msg_events().remove(0));
816 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event_1.msgs[0]);
817 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event_1.commitment_msg);
818 check_added_monitors!(nodes[1], 1);
819 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
821 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
822 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_2.msgs[0]);
823 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_2.commitment_msg);
824 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
825 nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
826 check_added_monitors!(nodes[0], 1);
828 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
829 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
830 nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Previous monitor update failure prevented responses to RAA".to_string(), 1);
831 check_added_monitors!(nodes[0], 1);
833 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
834 let (outpoint, latest_update) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
835 nodes[0].node.channel_monitor_updated(&outpoint, latest_update);
836 check_added_monitors!(nodes[0], 0);
838 let as_update_raa = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
839 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_update_raa.0);
840 check_added_monitors!(nodes[1], 1);
841 let bs_cs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
843 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_update_raa.1);
844 check_added_monitors!(nodes[1], 1);
845 let bs_second_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
847 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_cs.commitment_signed);
848 check_added_monitors!(nodes[0], 1);
849 let as_second_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
851 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_raa);
852 check_added_monitors!(nodes[0], 1);
853 expect_pending_htlcs_forwardable!(nodes[0]);
854 expect_payment_received!(nodes[0], our_payment_hash_2, our_payment_secret_2, 1000000);
856 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_raa);
857 check_added_monitors!(nodes[1], 1);
858 expect_pending_htlcs_forwardable!(nodes[1]);
859 expect_payment_received!(nodes[1], our_payment_hash_1, our_payment_secret_1, 1000000);
861 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
862 claim_payment(&nodes[1], &[&nodes[0]], payment_preimage_2);
865 fn do_test_monitor_update_fail_raa(test_ignore_second_cs: bool) {
866 // Tests handling of a monitor update failure when processing an incoming RAA
867 let chanmon_cfgs = create_chanmon_cfgs(3);
868 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
869 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
870 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
871 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
872 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
873 let logger = test_utils::TestLogger::new();
875 // Rebalance a bit so that we can send backwards from 2 to 1.
876 send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000);
878 // Route a first payment that we'll fail backwards
879 let (_, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000);
881 // Fail the payment backwards, failing the monitor update on nodes[1]'s receipt of the RAA
882 assert!(nodes[2].node.fail_htlc_backwards(&payment_hash_1));
883 expect_pending_htlcs_forwardable!(nodes[2]);
884 check_added_monitors!(nodes[2], 1);
886 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
887 assert!(updates.update_add_htlcs.is_empty());
888 assert!(updates.update_fulfill_htlcs.is_empty());
889 assert_eq!(updates.update_fail_htlcs.len(), 1);
890 assert!(updates.update_fail_malformed_htlcs.is_empty());
891 assert!(updates.update_fee.is_none());
892 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
894 let bs_revoke_and_ack = commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false, true, false, true);
895 check_added_monitors!(nodes[0], 0);
897 // While the second channel is AwaitingRAA, forward a second payment to get it into the
899 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[2]);
901 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
902 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
903 nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
904 check_added_monitors!(nodes[0], 1);
907 let mut send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
908 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
909 commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false);
911 expect_pending_htlcs_forwardable!(nodes[1]);
912 check_added_monitors!(nodes[1], 0);
913 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
915 // Now fail monitor updating.
916 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
917 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack);
918 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
919 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
920 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
921 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
922 check_added_monitors!(nodes[1], 1);
924 // Forward a third payment which will also be added to the holding cell, despite the channel
925 // being paused waiting a monitor update.
926 let (_, payment_hash_3, payment_secret_3) = get_payment_preimage_hash!(nodes[2]);
928 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
929 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
930 nodes[0].node.send_payment(&route, payment_hash_3, &Some(payment_secret_3)).unwrap();
931 check_added_monitors!(nodes[0], 1);
934 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(())); // We succeed in updating the monitor for the first channel
935 send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
936 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
937 commitment_signed_dance!(nodes[1], nodes[0], send_event.commitment_msg, false, true);
938 check_added_monitors!(nodes[1], 0);
940 // Call forward_pending_htlcs and check that the new HTLC was simply added to the holding cell
941 // and not forwarded.
942 expect_pending_htlcs_forwardable!(nodes[1]);
943 check_added_monitors!(nodes[1], 0);
944 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
946 let (payment_preimage_4, payment_hash_4) = if test_ignore_second_cs {
947 // Try to route another payment backwards from 2 to make sure 1 holds off on responding
948 let (payment_preimage_4, payment_hash_4, payment_secret_4) = get_payment_preimage_hash!(nodes[0]);
949 let net_graph_msg_handler = &nodes[2].net_graph_msg_handler;
950 let route = get_route(&nodes[2].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
951 nodes[2].node.send_payment(&route, payment_hash_4, &Some(payment_secret_4)).unwrap();
952 check_added_monitors!(nodes[2], 1);
954 send_event = SendEvent::from_event(nodes[2].node.get_and_clear_pending_msg_events().remove(0));
955 nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &send_event.msgs[0]);
956 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &send_event.commitment_msg);
957 check_added_monitors!(nodes[1], 1);
958 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
959 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Previous monitor update failure prevented generation of RAA".to_string(), 1);
960 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
961 (Some(payment_preimage_4), Some(payment_hash_4))
962 } else { (None, None) };
964 // Restore monitor updating, ensuring we immediately get a fail-back update and a
965 // update_add update.
966 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
967 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&chan_2.2).unwrap().clone();
968 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
969 check_added_monitors!(nodes[1], 0);
970 expect_pending_htlcs_forwardable!(nodes[1]);
971 check_added_monitors!(nodes[1], 1);
973 let mut events_3 = nodes[1].node.get_and_clear_pending_msg_events();
974 if test_ignore_second_cs {
975 assert_eq!(events_3.len(), 3);
977 assert_eq!(events_3.len(), 2);
980 // Note that the ordering of the events for different nodes is non-prescriptive, though the
981 // ordering of the two events that both go to nodes[2] have to stay in the same order.
982 let messages_a = match events_3.pop().unwrap() {
983 MessageSendEvent::UpdateHTLCs { node_id, mut updates } => {
984 assert_eq!(node_id, nodes[0].node.get_our_node_id());
985 assert!(updates.update_fulfill_htlcs.is_empty());
986 assert_eq!(updates.update_fail_htlcs.len(), 1);
987 assert!(updates.update_fail_malformed_htlcs.is_empty());
988 assert!(updates.update_add_htlcs.is_empty());
989 assert!(updates.update_fee.is_none());
990 (updates.update_fail_htlcs.remove(0), updates.commitment_signed)
992 _ => panic!("Unexpected event type!"),
994 let raa = if test_ignore_second_cs {
995 match events_3.remove(1) {
996 MessageSendEvent::SendRevokeAndACK { node_id, msg } => {
997 assert_eq!(node_id, nodes[2].node.get_our_node_id());
1000 _ => panic!("Unexpected event"),
1003 let send_event_b = SendEvent::from_event(events_3.remove(0));
1004 assert_eq!(send_event_b.node_id, nodes[2].node.get_our_node_id());
1006 // Now deliver the new messages...
1008 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &messages_a.0);
1009 commitment_signed_dance!(nodes[0], nodes[1], messages_a.1, false);
1010 expect_payment_failed!(nodes[0], payment_hash_1, true);
1012 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event_b.msgs[0]);
1014 if test_ignore_second_cs {
1015 nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_b.commitment_msg);
1016 check_added_monitors!(nodes[2], 1);
1017 let bs_revoke_and_ack = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1018 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &raa.unwrap());
1019 check_added_monitors!(nodes[2], 1);
1020 let bs_cs = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1021 assert!(bs_cs.update_add_htlcs.is_empty());
1022 assert!(bs_cs.update_fail_htlcs.is_empty());
1023 assert!(bs_cs.update_fail_malformed_htlcs.is_empty());
1024 assert!(bs_cs.update_fulfill_htlcs.is_empty());
1025 assert!(bs_cs.update_fee.is_none());
1027 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack);
1028 check_added_monitors!(nodes[1], 1);
1029 as_cs = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
1031 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_cs.commitment_signed);
1032 check_added_monitors!(nodes[1], 1);
1034 nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event_b.commitment_msg);
1035 check_added_monitors!(nodes[2], 1);
1037 let bs_revoke_and_commit = nodes[2].node.get_and_clear_pending_msg_events();
1038 assert_eq!(bs_revoke_and_commit.len(), 2);
1039 match bs_revoke_and_commit[0] {
1040 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1041 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
1042 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &msg);
1043 check_added_monitors!(nodes[1], 1);
1045 _ => panic!("Unexpected event"),
1048 as_cs = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
1050 match bs_revoke_and_commit[1] {
1051 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1052 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
1053 assert!(updates.update_add_htlcs.is_empty());
1054 assert!(updates.update_fail_htlcs.is_empty());
1055 assert!(updates.update_fail_malformed_htlcs.is_empty());
1056 assert!(updates.update_fulfill_htlcs.is_empty());
1057 assert!(updates.update_fee.is_none());
1058 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &updates.commitment_signed);
1059 check_added_monitors!(nodes[1], 1);
1061 _ => panic!("Unexpected event"),
1065 assert_eq!(as_cs.update_add_htlcs.len(), 1);
1066 assert!(as_cs.update_fail_htlcs.is_empty());
1067 assert!(as_cs.update_fail_malformed_htlcs.is_empty());
1068 assert!(as_cs.update_fulfill_htlcs.is_empty());
1069 assert!(as_cs.update_fee.is_none());
1070 let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id());
1073 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &as_cs.update_add_htlcs[0]);
1074 nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_cs.commitment_signed);
1075 check_added_monitors!(nodes[2], 1);
1076 let bs_second_raa = get_event_msg!(nodes[2], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1078 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa);
1079 check_added_monitors!(nodes[2], 1);
1080 let bs_second_cs = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1082 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_second_raa);
1083 check_added_monitors!(nodes[1], 1);
1084 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1086 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_second_cs.commitment_signed);
1087 check_added_monitors!(nodes[1], 1);
1088 let as_second_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id());
1090 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_second_raa);
1091 check_added_monitors!(nodes[2], 1);
1092 assert!(nodes[2].node.get_and_clear_pending_msg_events().is_empty());
1094 expect_pending_htlcs_forwardable!(nodes[2]);
1096 let events_6 = nodes[2].node.get_and_clear_pending_events();
1097 assert_eq!(events_6.len(), 2);
1099 Event::PaymentReceived { payment_hash, .. } => { assert_eq!(payment_hash, payment_hash_2); },
1100 _ => panic!("Unexpected event"),
1103 Event::PaymentReceived { payment_hash, .. } => { assert_eq!(payment_hash, payment_hash_3); },
1104 _ => panic!("Unexpected event"),
1107 if test_ignore_second_cs {
1108 expect_pending_htlcs_forwardable!(nodes[1]);
1109 check_added_monitors!(nodes[1], 1);
1111 send_event = SendEvent::from_node(&nodes[1]);
1112 assert_eq!(send_event.node_id, nodes[0].node.get_our_node_id());
1113 assert_eq!(send_event.msgs.len(), 1);
1114 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event.msgs[0]);
1115 commitment_signed_dance!(nodes[0], nodes[1], send_event.commitment_msg, false);
1117 expect_pending_htlcs_forwardable!(nodes[0]);
1119 let events_9 = nodes[0].node.get_and_clear_pending_events();
1120 assert_eq!(events_9.len(), 1);
1122 Event::PaymentReceived { payment_hash, .. } => assert_eq!(payment_hash, payment_hash_4.unwrap()),
1123 _ => panic!("Unexpected event"),
1125 claim_payment(&nodes[2], &[&nodes[1], &nodes[0]], payment_preimage_4.unwrap());
1128 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage_2);
1132 fn test_monitor_update_fail_raa() {
1133 do_test_monitor_update_fail_raa(false);
1134 do_test_monitor_update_fail_raa(true);
1138 fn test_monitor_update_fail_reestablish() {
1139 // Simple test for message retransmission after monitor update failure on
1140 // channel_reestablish generating a monitor update (which comes from freeing holding cell
1142 let chanmon_cfgs = create_chanmon_cfgs(3);
1143 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1144 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1145 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1146 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1147 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
1149 let (our_payment_preimage, _, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000);
1151 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1152 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1154 assert!(nodes[2].node.claim_funds(our_payment_preimage));
1155 check_added_monitors!(nodes[2], 1);
1156 let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1157 assert!(updates.update_add_htlcs.is_empty());
1158 assert!(updates.update_fail_htlcs.is_empty());
1159 assert!(updates.update_fail_malformed_htlcs.is_empty());
1160 assert!(updates.update_fee.is_none());
1161 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
1162 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
1163 check_added_monitors!(nodes[1], 1);
1164 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1165 commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false);
1167 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1168 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1169 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1171 let as_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
1172 let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
1174 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
1176 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish);
1178 get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id())
1179 .contents.flags & 2, 0); // The "disabled" bit should be unset as we just reconnected
1181 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1182 check_added_monitors!(nodes[1], 1);
1184 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1185 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1187 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1188 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1190 assert!(as_reestablish == get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()));
1191 assert!(bs_reestablish == get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()));
1193 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
1195 get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id())
1196 .contents.flags & 2, 0); // The "disabled" bit should be unset as we just reconnected
1198 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish);
1199 check_added_monitors!(nodes[1], 0);
1201 get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[0].node.get_our_node_id())
1202 .contents.flags & 2, 0); // The "disabled" bit should be unset as we just reconnected
1204 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1205 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&chan_1.2).unwrap().clone();
1206 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1207 check_added_monitors!(nodes[1], 0);
1209 updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1210 assert!(updates.update_add_htlcs.is_empty());
1211 assert!(updates.update_fail_htlcs.is_empty());
1212 assert!(updates.update_fail_malformed_htlcs.is_empty());
1213 assert!(updates.update_fee.is_none());
1214 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
1215 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
1216 commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false);
1218 let events = nodes[0].node.get_and_clear_pending_events();
1219 assert_eq!(events.len(), 1);
1221 Event::PaymentSent { payment_preimage, .. } => assert_eq!(payment_preimage, our_payment_preimage),
1222 _ => panic!("Unexpected event"),
1227 fn raa_no_response_awaiting_raa_state() {
1228 // This is a rather convoluted test which ensures that if handling of an RAA does not happen
1229 // due to a previous monitor update failure, we still set AwaitingRemoteRevoke on the channel
1230 // in question (assuming it intends to respond with a CS after monitor updating is restored).
1231 // Backported from chanmon_fail_consistency fuzz tests as this used to be broken.
1232 let chanmon_cfgs = create_chanmon_cfgs(2);
1233 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1234 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1235 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1236 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
1237 let logger = test_utils::TestLogger::new();
1239 let (payment_preimage_1, payment_hash_1, payment_secret_1) = get_payment_preimage_hash!(nodes[1]);
1240 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[1]);
1241 let (payment_preimage_3, payment_hash_3, payment_secret_3) = get_payment_preimage_hash!(nodes[1]);
1243 // Queue up two payments - one will be delivered right away, one immediately goes into the
1244 // holding cell as nodes[0] is AwaitingRAA. Ultimately this allows us to deliver an RAA
1245 // immediately after a CS. By setting failing the monitor update failure from the CS (which
1246 // requires only an RAA response due to AwaitingRAA) we can deliver the RAA and require the CS
1247 // generation during RAA while in monitor-update-failed state.
1249 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1250 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1251 nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1)).unwrap();
1252 check_added_monitors!(nodes[0], 1);
1253 nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
1254 check_added_monitors!(nodes[0], 0);
1257 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1258 assert_eq!(events.len(), 1);
1259 let payment_event = SendEvent::from_event(events.pop().unwrap());
1260 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1261 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
1262 check_added_monitors!(nodes[1], 1);
1264 let bs_responses = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1265 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_responses.0);
1266 check_added_monitors!(nodes[0], 1);
1267 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1268 assert_eq!(events.len(), 1);
1269 let payment_event = SendEvent::from_event(events.pop().unwrap());
1271 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_responses.1);
1272 check_added_monitors!(nodes[0], 1);
1273 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1275 // Now we have a CS queued up which adds a new HTLC (which will need a RAA/CS response from
1276 // nodes[1]) followed by an RAA. Fail the monitor updating prior to the CS, deliver the RAA,
1277 // then restore channel monitor updates.
1278 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1279 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1280 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
1281 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1282 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1283 check_added_monitors!(nodes[1], 1);
1285 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1286 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1287 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Previous monitor update failure prevented responses to RAA".to_string(), 1);
1288 check_added_monitors!(nodes[1], 1);
1290 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1291 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1292 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1293 // nodes[1] should be AwaitingRAA here!
1294 check_added_monitors!(nodes[1], 0);
1295 let bs_responses = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1296 expect_pending_htlcs_forwardable!(nodes[1]);
1297 expect_payment_received!(nodes[1], payment_hash_1, payment_secret_1, 1000000);
1299 // We send a third payment here, which is somewhat of a redundant test, but the
1300 // chanmon_fail_consistency test required it to actually find the bug (by seeing out-of-sync
1301 // commitment transaction states) whereas here we can explicitly check for it.
1303 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1304 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1305 nodes[0].node.send_payment(&route, payment_hash_3, &Some(payment_secret_3)).unwrap();
1306 check_added_monitors!(nodes[0], 0);
1307 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1309 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_responses.0);
1310 check_added_monitors!(nodes[0], 1);
1311 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1312 assert_eq!(events.len(), 1);
1313 let payment_event = SendEvent::from_event(events.pop().unwrap());
1315 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_responses.1);
1316 check_added_monitors!(nodes[0], 1);
1317 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1319 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1320 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
1321 check_added_monitors!(nodes[1], 1);
1322 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
1324 // Finally deliver the RAA to nodes[1] which results in a CS response to the last update
1325 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1326 check_added_monitors!(nodes[1], 1);
1327 expect_pending_htlcs_forwardable!(nodes[1]);
1328 expect_payment_received!(nodes[1], payment_hash_2, payment_secret_2, 1000000);
1329 let bs_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1331 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
1332 check_added_monitors!(nodes[0], 1);
1334 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_update.commitment_signed);
1335 check_added_monitors!(nodes[0], 1);
1336 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1338 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1339 check_added_monitors!(nodes[1], 1);
1340 expect_pending_htlcs_forwardable!(nodes[1]);
1341 expect_payment_received!(nodes[1], payment_hash_3, payment_secret_3, 1000000);
1343 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
1344 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2);
1345 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_3);
1349 fn claim_while_disconnected_monitor_update_fail() {
1350 // Test for claiming a payment while disconnected and then having the resulting
1351 // channel-update-generated monitor update fail. This kind of thing isn't a particularly
1352 // contrived case for nodes with network instability.
1353 // Backported from chanmon_fail_consistency fuzz tests as an unmerged version of the handling
1354 // code introduced a regression in this test (specifically, this caught a removal of the
1355 // channel_reestablish handling ensuring the order was sensical given the messages used).
1356 let chanmon_cfgs = create_chanmon_cfgs(2);
1357 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1358 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1359 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1360 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
1361 let logger = test_utils::TestLogger::new();
1363 // Forward a payment for B to claim
1364 let (payment_preimage_1, _, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
1366 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1367 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1369 assert!(nodes[1].node.claim_funds(payment_preimage_1));
1370 check_added_monitors!(nodes[1], 1);
1372 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1373 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1375 let as_reconnect = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
1376 let bs_reconnect = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
1378 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reconnect);
1379 let _as_channel_update = get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
1381 // Now deliver a's reestablish, freeing the claim from the holding cell, but fail the monitor
1383 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1385 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reconnect);
1386 let _bs_channel_update = get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[0].node.get_our_node_id());
1387 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1388 check_added_monitors!(nodes[1], 1);
1389 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1391 // Send a second payment from A to B, resulting in a commitment update that gets swallowed with
1392 // the monitor still failed
1393 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[1]);
1395 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1396 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1397 nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
1398 check_added_monitors!(nodes[0], 1);
1401 let as_updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
1402 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &as_updates.update_add_htlcs[0]);
1403 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_updates.commitment_signed);
1404 check_added_monitors!(nodes[1], 1);
1405 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1406 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Previous monitor update failure prevented generation of RAA".to_string(), 1);
1407 // Note that nodes[1] not updating monitor here is OK - it wont take action on the new HTLC
1408 // until we've channel_monitor_update'd and updated for the new commitment transaction.
1410 // Now un-fail the monitor, which will result in B sending its original commitment update,
1411 // receiving the commitment update from A, and the resulting commitment dances.
1412 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1413 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1414 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1415 check_added_monitors!(nodes[1], 0);
1417 let bs_msgs = nodes[1].node.get_and_clear_pending_msg_events();
1418 assert_eq!(bs_msgs.len(), 2);
1421 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1422 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
1423 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
1424 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &updates.commitment_signed);
1425 check_added_monitors!(nodes[0], 1);
1427 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1428 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1429 check_added_monitors!(nodes[1], 1);
1431 _ => panic!("Unexpected event"),
1435 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1436 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
1437 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), msg);
1438 check_added_monitors!(nodes[0], 1);
1440 _ => panic!("Unexpected event"),
1443 let as_commitment = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
1445 let bs_commitment = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1446 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_commitment.commitment_signed);
1447 check_added_monitors!(nodes[0], 1);
1448 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1450 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment.commitment_signed);
1451 check_added_monitors!(nodes[1], 1);
1452 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
1453 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1454 check_added_monitors!(nodes[1], 1);
1456 expect_pending_htlcs_forwardable!(nodes[1]);
1457 expect_payment_received!(nodes[1], payment_hash_2, payment_secret_2, 1000000);
1459 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
1460 check_added_monitors!(nodes[0], 1);
1462 let events = nodes[0].node.get_and_clear_pending_events();
1463 assert_eq!(events.len(), 1);
1465 Event::PaymentSent { ref payment_preimage } => {
1466 assert_eq!(*payment_preimage, payment_preimage_1);
1468 _ => panic!("Unexpected event"),
1471 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2);
1475 fn monitor_failed_no_reestablish_response() {
1476 // Test for receiving a channel_reestablish after a monitor update failure resulted in no
1477 // response to a commitment_signed.
1478 // Backported from chanmon_fail_consistency fuzz tests as it caught a long-standing
1479 // debug_assert!() failure in channel_reestablish handling.
1480 let chanmon_cfgs = create_chanmon_cfgs(2);
1481 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1482 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1483 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1484 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
1485 let logger = test_utils::TestLogger::new();
1487 // Route the payment and deliver the initial commitment_signed (with a monitor update failure
1489 let (payment_preimage_1, payment_hash_1, payment_secret_1) = get_payment_preimage_hash!(nodes[1]);
1491 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1492 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1493 nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1)).unwrap();
1494 check_added_monitors!(nodes[0], 1);
1497 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1498 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1499 assert_eq!(events.len(), 1);
1500 let payment_event = SendEvent::from_event(events.pop().unwrap());
1501 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1502 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
1503 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1504 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1505 check_added_monitors!(nodes[1], 1);
1507 // Now disconnect and immediately reconnect, delivering the channel_reestablish while nodes[1]
1508 // is still failing to update monitors.
1509 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1510 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1512 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1513 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1515 let as_reconnect = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
1516 let bs_reconnect = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
1518 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reconnect);
1519 let _bs_channel_update = get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[0].node.get_our_node_id());
1520 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reconnect);
1521 let _as_channel_update = get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
1523 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1524 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1525 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1526 check_added_monitors!(nodes[1], 0);
1527 let bs_responses = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1529 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_responses.0);
1530 check_added_monitors!(nodes[0], 1);
1531 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_responses.1);
1532 check_added_monitors!(nodes[0], 1);
1534 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1535 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1536 check_added_monitors!(nodes[1], 1);
1538 expect_pending_htlcs_forwardable!(nodes[1]);
1539 expect_payment_received!(nodes[1], payment_hash_1, payment_secret_1, 1000000);
1541 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
1545 fn first_message_on_recv_ordering() {
1546 // Test that if the initial generator of a monitor-update-frozen state doesn't generate
1547 // messages, we're willing to flip the order of response messages if neccessary in resposne to
1548 // a commitment_signed which needs to send an RAA first.
1549 // At a high level, our goal is to fail monitor updating in response to an RAA which needs no
1550 // response and then handle a CS while in the failed state, requiring an RAA followed by a CS
1551 // response. To do this, we start routing two payments, with the final RAA for the first being
1552 // delivered while B is in AwaitingRAA, hence when we deliver the CS for the second B will
1553 // have no pending response but will want to send a RAA/CS (with the updates for the second
1554 // payment applied).
1555 // Backported from chanmon_fail_consistency fuzz tests as it caught a bug here.
1556 let chanmon_cfgs = create_chanmon_cfgs(2);
1557 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1558 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1559 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1560 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
1561 let logger = test_utils::TestLogger::new();
1563 // Route the first payment outbound, holding the last RAA for B until we are set up so that we
1564 // can deliver it and fail the monitor update.
1565 let (payment_preimage_1, payment_hash_1, payment_secret_1) = get_payment_preimage_hash!(nodes[1]);
1567 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1568 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1569 nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1)).unwrap();
1570 check_added_monitors!(nodes[0], 1);
1573 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1574 assert_eq!(events.len(), 1);
1575 let payment_event = SendEvent::from_event(events.pop().unwrap());
1576 assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id());
1577 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1578 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
1579 check_added_monitors!(nodes[1], 1);
1580 let bs_responses = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1582 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_responses.0);
1583 check_added_monitors!(nodes[0], 1);
1584 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_responses.1);
1585 check_added_monitors!(nodes[0], 1);
1587 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1589 // Route the second payment, generating an update_add_htlc/commitment_signed
1590 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[1]);
1592 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1593 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1594 nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
1595 check_added_monitors!(nodes[0], 1);
1597 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1598 assert_eq!(events.len(), 1);
1599 let payment_event = SendEvent::from_event(events.pop().unwrap());
1600 assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id());
1602 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1604 // Deliver the final RAA for the first payment, which does not require a response. RAAs
1605 // generally require a commitment_signed, so the fact that we're expecting an opposite response
1606 // to the next message also tests resetting the delivery order.
1607 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1608 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1609 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1610 check_added_monitors!(nodes[1], 1);
1612 // Now deliver the update_add_htlc/commitment_signed for the second payment, which does need an
1613 // RAA/CS response, which should be generated when we call channel_monitor_update (with the
1614 // appropriate HTLC acceptance).
1615 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1616 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
1617 check_added_monitors!(nodes[1], 1);
1618 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1619 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Previous monitor update failure prevented generation of RAA".to_string(), 1);
1621 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1622 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1623 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1624 check_added_monitors!(nodes[1], 0);
1626 expect_pending_htlcs_forwardable!(nodes[1]);
1627 expect_payment_received!(nodes[1], payment_hash_1, payment_secret_1, 1000000);
1629 let bs_responses = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1630 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_responses.0);
1631 check_added_monitors!(nodes[0], 1);
1632 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_responses.1);
1633 check_added_monitors!(nodes[0], 1);
1635 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
1636 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1637 check_added_monitors!(nodes[1], 1);
1639 expect_pending_htlcs_forwardable!(nodes[1]);
1640 expect_payment_received!(nodes[1], payment_hash_2, payment_secret_2, 1000000);
1642 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
1643 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2);
1647 fn test_monitor_update_fail_claim() {
1648 // Basic test for monitor update failures when processing claim_funds calls.
1649 // We set up a simple 3-node network, sending a payment from A to B and failing B's monitor
1650 // update to claim the payment. We then send two payments C->B->A, which are held at B.
1651 // Finally, we restore the channel monitor updating and claim the payment on B, forwarding
1652 // the payments from C onwards to A.
1653 let chanmon_cfgs = create_chanmon_cfgs(3);
1654 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1655 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1656 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1657 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1658 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
1659 let logger = test_utils::TestLogger::new();
1661 // Rebalance a bit so that we can send backwards from 3 to 2.
1662 send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000);
1664 let (payment_preimage_1, _, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
1666 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1667 assert!(nodes[1].node.claim_funds(payment_preimage_1));
1668 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Temporary failure claiming HTLC, treating as success: Failed to update ChannelMonitor".to_string(), 1);
1669 check_added_monitors!(nodes[1], 1);
1671 // Note that at this point there is a pending commitment transaction update for A being held by
1672 // B. Even when we go to send the payment from C through B to A, B will not update this
1673 // already-signed commitment transaction and will instead wait for it to resolve before
1674 // forwarding the payment onwards.
1676 let (_, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[0]);
1679 let net_graph_msg_handler = &nodes[2].net_graph_msg_handler;
1680 route = get_route(&nodes[2].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1_000_000, TEST_FINAL_CLTV, &logger).unwrap();
1681 nodes[2].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
1682 check_added_monitors!(nodes[2], 1);
1685 // Successfully update the monitor on the 1<->2 channel, but the 0<->1 channel should still be
1686 // paused, so forward shouldn't succeed until we call channel_monitor_updated().
1687 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1689 let mut events = nodes[2].node.get_and_clear_pending_msg_events();
1690 assert_eq!(events.len(), 1);
1691 let payment_event = SendEvent::from_event(events.pop().unwrap());
1692 nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &payment_event.msgs[0]);
1693 let events = nodes[1].node.get_and_clear_pending_msg_events();
1694 assert_eq!(events.len(), 0);
1695 commitment_signed_dance!(nodes[1], nodes[2], payment_event.commitment_msg, false, true);
1697 let (_, payment_hash_3, payment_secret_3) = get_payment_preimage_hash!(nodes[0]);
1698 nodes[2].node.send_payment(&route, payment_hash_3, &Some(payment_secret_3)).unwrap();
1699 check_added_monitors!(nodes[2], 1);
1701 let mut events = nodes[2].node.get_and_clear_pending_msg_events();
1702 assert_eq!(events.len(), 1);
1703 let payment_event = SendEvent::from_event(events.pop().unwrap());
1704 nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &payment_event.msgs[0]);
1705 let events = nodes[1].node.get_and_clear_pending_msg_events();
1706 assert_eq!(events.len(), 0);
1707 commitment_signed_dance!(nodes[1], nodes[2], payment_event.commitment_msg, false, true);
1709 // Now restore monitor updating on the 0<->1 channel and claim the funds on B.
1710 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&chan_1.2).unwrap().clone();
1711 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1712 check_added_monitors!(nodes[1], 0);
1714 let bs_fulfill_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1715 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_fulfill_update.update_fulfill_htlcs[0]);
1716 commitment_signed_dance!(nodes[0], nodes[1], bs_fulfill_update.commitment_signed, false);
1717 expect_payment_sent!(nodes[0], payment_preimage_1);
1719 // Get the payment forwards, note that they were batched into one commitment update.
1720 expect_pending_htlcs_forwardable!(nodes[1]);
1721 check_added_monitors!(nodes[1], 1);
1722 let bs_forward_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1723 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &bs_forward_update.update_add_htlcs[0]);
1724 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &bs_forward_update.update_add_htlcs[1]);
1725 commitment_signed_dance!(nodes[0], nodes[1], bs_forward_update.commitment_signed, false);
1726 expect_pending_htlcs_forwardable!(nodes[0]);
1728 let events = nodes[0].node.get_and_clear_pending_events();
1729 assert_eq!(events.len(), 2);
1731 Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
1732 assert_eq!(payment_hash_2, *payment_hash);
1733 assert_eq!(1_000_000, amt);
1735 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1736 assert!(payment_preimage.is_none());
1737 assert_eq!(payment_secret_2, *payment_secret);
1739 _ => panic!("expected PaymentPurpose::InvoicePayment")
1742 _ => panic!("Unexpected event"),
1745 Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
1746 assert_eq!(payment_hash_3, *payment_hash);
1747 assert_eq!(1_000_000, amt);
1749 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1750 assert!(payment_preimage.is_none());
1751 assert_eq!(payment_secret_3, *payment_secret);
1753 _ => panic!("expected PaymentPurpose::InvoicePayment")
1756 _ => panic!("Unexpected event"),
1761 fn test_monitor_update_on_pending_forwards() {
1762 // Basic test for monitor update failures when processing pending HTLC fail/add forwards.
1763 // We do this with a simple 3-node network, sending a payment from A to C and one from C to A.
1764 // The payment from A to C will be failed by C and pending a back-fail to A, while the payment
1765 // from C to A will be pending a forward to A.
1766 let chanmon_cfgs = create_chanmon_cfgs(3);
1767 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1768 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1769 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1770 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1771 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
1772 let logger = test_utils::TestLogger::new();
1774 // Rebalance a bit so that we can send backwards from 3 to 1.
1775 send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000);
1777 let (_, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000);
1778 assert!(nodes[2].node.fail_htlc_backwards(&payment_hash_1));
1779 expect_pending_htlcs_forwardable!(nodes[2]);
1780 check_added_monitors!(nodes[2], 1);
1782 let cs_fail_update = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1783 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &cs_fail_update.update_fail_htlcs[0]);
1784 commitment_signed_dance!(nodes[1], nodes[2], cs_fail_update.commitment_signed, true, true);
1785 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1787 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[0]);
1789 let net_graph_msg_handler = &nodes[2].net_graph_msg_handler;
1790 let route = get_route(&nodes[2].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1791 nodes[2].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
1792 check_added_monitors!(nodes[2], 1);
1795 let mut events = nodes[2].node.get_and_clear_pending_msg_events();
1796 assert_eq!(events.len(), 1);
1797 let payment_event = SendEvent::from_event(events.pop().unwrap());
1798 nodes[1].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &payment_event.msgs[0]);
1799 commitment_signed_dance!(nodes[1], nodes[2], payment_event.commitment_msg, false);
1801 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1802 expect_pending_htlcs_forwardable!(nodes[1]);
1803 check_added_monitors!(nodes[1], 1);
1804 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1805 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1807 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1808 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&chan_1.2).unwrap().clone();
1809 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1810 check_added_monitors!(nodes[1], 0);
1812 let bs_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1813 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.update_fail_htlcs[0]);
1814 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.update_add_htlcs[0]);
1815 commitment_signed_dance!(nodes[0], nodes[1], bs_updates.commitment_signed, false, true);
1817 let events = nodes[0].node.get_and_clear_pending_events();
1818 assert_eq!(events.len(), 2);
1819 if let Event::PaymentFailed { payment_hash, rejected_by_dest, .. } = events[0] {
1820 assert_eq!(payment_hash, payment_hash_1);
1821 assert!(rejected_by_dest);
1822 } else { panic!("Unexpected event!"); }
1824 Event::PendingHTLCsForwardable { .. } => { },
1825 _ => panic!("Unexpected event"),
1827 nodes[0].node.process_pending_htlc_forwards();
1828 expect_payment_received!(nodes[0], payment_hash_2, payment_secret_2, 1000000);
1830 claim_payment(&nodes[2], &[&nodes[1], &nodes[0]], payment_preimage_2);
1834 fn monitor_update_claim_fail_no_response() {
1835 // Test for claim_funds resulting in both a monitor update failure and no message response (due
1836 // to channel being AwaitingRAA).
1837 // Backported from chanmon_fail_consistency fuzz tests as an unmerged version of the handling
1839 let chanmon_cfgs = create_chanmon_cfgs(2);
1840 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1841 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1842 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1843 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
1844 let logger = test_utils::TestLogger::new();
1846 // Forward a payment for B to claim
1847 let (payment_preimage_1, _, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
1849 // Now start forwarding a second payment, skipping the last RAA so B is in AwaitingRAA
1850 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[1]);
1852 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1853 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
1854 nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
1855 check_added_monitors!(nodes[0], 1);
1858 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1859 assert_eq!(events.len(), 1);
1860 let payment_event = SendEvent::from_event(events.pop().unwrap());
1861 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1862 let as_raa = commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false, true, false, true);
1864 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1865 assert!(nodes[1].node.claim_funds(payment_preimage_1));
1866 check_added_monitors!(nodes[1], 1);
1867 let events = nodes[1].node.get_and_clear_pending_msg_events();
1868 assert_eq!(events.len(), 0);
1869 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Temporary failure claiming HTLC, treating as success: Failed to update ChannelMonitor".to_string(), 1);
1871 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1872 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1873 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1874 check_added_monitors!(nodes[1], 0);
1875 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1877 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
1878 check_added_monitors!(nodes[1], 1);
1879 expect_pending_htlcs_forwardable!(nodes[1]);
1880 expect_payment_received!(nodes[1], payment_hash_2, payment_secret_2, 1000000);
1882 let bs_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1883 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.update_fulfill_htlcs[0]);
1884 commitment_signed_dance!(nodes[0], nodes[1], bs_updates.commitment_signed, false);
1886 let events = nodes[0].node.get_and_clear_pending_events();
1887 assert_eq!(events.len(), 1);
1889 Event::PaymentSent { ref payment_preimage } => {
1890 assert_eq!(*payment_preimage, payment_preimage_1);
1892 _ => panic!("Unexpected event"),
1895 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2);
1898 // confirm_a_first and restore_b_before_conf are wholly unrelated to earlier bools and
1899 // restore_b_before_conf has no meaning if !confirm_a_first
1900 fn do_during_funding_monitor_fail(confirm_a_first: bool, restore_b_before_conf: bool) {
1901 // Test that if the monitor update generated by funding_transaction_generated fails we continue
1902 // the channel setup happily after the update is restored.
1903 let chanmon_cfgs = create_chanmon_cfgs(2);
1904 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1905 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1906 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1908 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 43, None).unwrap();
1909 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()));
1910 nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
1912 let (temporary_channel_id, funding_tx, funding_output) = create_funding_transaction(&nodes[0], 100000, 43);
1914 nodes[0].node.funding_transaction_generated(&temporary_channel_id, funding_tx.clone()).unwrap();
1915 check_added_monitors!(nodes[0], 0);
1917 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1918 let funding_created_msg = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
1919 let channel_id = OutPoint { txid: funding_created_msg.funding_txid, index: funding_created_msg.funding_output_index }.to_channel_id();
1920 nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msg);
1921 check_added_monitors!(nodes[1], 1);
1923 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
1924 nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id()));
1925 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1926 nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Failed to update ChannelMonitor".to_string(), 1);
1927 check_added_monitors!(nodes[0], 1);
1928 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
1929 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1930 let (outpoint, latest_update) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1931 nodes[0].node.channel_monitor_updated(&outpoint, latest_update);
1932 check_added_monitors!(nodes[0], 0);
1934 let events = nodes[0].node.get_and_clear_pending_events();
1935 assert_eq!(events.len(), 0);
1936 assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
1937 assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0)[0].txid(), funding_output.txid);
1939 if confirm_a_first {
1940 confirm_transaction(&nodes[0], &funding_tx);
1941 nodes[1].node.handle_funding_locked(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendFundingLocked, nodes[1].node.get_our_node_id()));
1943 assert!(!restore_b_before_conf);
1944 confirm_transaction(&nodes[1], &funding_tx);
1945 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1948 // Make sure nodes[1] isn't stupid enough to re-send the FundingLocked on reconnect
1949 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1950 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1951 reconnect_nodes(&nodes[0], &nodes[1], (false, confirm_a_first), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
1952 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1953 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1955 if !restore_b_before_conf {
1956 confirm_transaction(&nodes[1], &funding_tx);
1957 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1958 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
1961 *nodes[1].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
1962 let (outpoint, latest_update) = nodes[1].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&channel_id).unwrap().clone();
1963 nodes[1].node.channel_monitor_updated(&outpoint, latest_update);
1964 check_added_monitors!(nodes[1], 0);
1966 let (channel_id, (announcement, as_update, bs_update)) = if !confirm_a_first {
1967 nodes[0].node.handle_funding_locked(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendFundingLocked, nodes[0].node.get_our_node_id()));
1969 confirm_transaction(&nodes[0], &funding_tx);
1970 let (funding_locked, channel_id) = create_chan_between_nodes_with_value_confirm_second(&nodes[1], &nodes[0]);
1971 (channel_id, create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_locked))
1973 if restore_b_before_conf {
1974 confirm_transaction(&nodes[1], &funding_tx);
1976 let (funding_locked, channel_id) = create_chan_between_nodes_with_value_confirm_second(&nodes[0], &nodes[1]);
1977 (channel_id, create_chan_between_nodes_with_value_b(&nodes[1], &nodes[0], &funding_locked))
1979 for node in nodes.iter() {
1980 assert!(node.net_graph_msg_handler.handle_channel_announcement(&announcement).unwrap());
1981 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1982 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1985 send_payment(&nodes[0], &[&nodes[1]], 8000000);
1986 close_channel(&nodes[0], &nodes[1], &channel_id, funding_tx, true);
1990 fn during_funding_monitor_fail() {
1991 do_during_funding_monitor_fail(true, true);
1992 do_during_funding_monitor_fail(true, false);
1993 do_during_funding_monitor_fail(false, false);
1997 fn test_path_paused_mpp() {
1998 // Simple test of sending a multi-part payment where one path is currently blocked awaiting
2000 let chanmon_cfgs = create_chanmon_cfgs(4);
2001 let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
2002 let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
2003 let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
2005 let chan_1_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
2006 let (chan_2_ann, _, chan_2_id, _) = create_announced_chan_between_nodes(&nodes, 0, 2, InitFeatures::known(), InitFeatures::known());
2007 let chan_3_id = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
2008 let chan_4_id = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
2009 let logger = test_utils::TestLogger::new();
2011 let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash!(&nodes[3]);
2012 let mut route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph.read().unwrap(), &nodes[3].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
2014 // Set us up to take multiple routes, one 0 -> 1 -> 3 and one 0 -> 2 -> 3:
2015 let path = route.paths[0].clone();
2016 route.paths.push(path);
2017 route.paths[0][0].pubkey = nodes[1].node.get_our_node_id();
2018 route.paths[0][0].short_channel_id = chan_1_id;
2019 route.paths[0][1].short_channel_id = chan_3_id;
2020 route.paths[1][0].pubkey = nodes[2].node.get_our_node_id();
2021 route.paths[1][0].short_channel_id = chan_2_ann.contents.short_channel_id;
2022 route.paths[1][1].short_channel_id = chan_4_id;
2024 // Set it so that the first monitor update (for the path 0 -> 1 -> 3) succeeds, but the second
2025 // (for the path 0 -> 2 -> 3) fails.
2026 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
2027 *nodes[0].chain_monitor.next_update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
2029 // Now check that we get the right return value, indicating that the first path succeeded but
2030 // the second got a MonitorUpdateFailed err. This implies PaymentSendFailure::PartialFailure as
2031 // some paths succeeded, preventing retry.
2032 if let Err(PaymentSendFailure::PartialFailure(results)) = nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)) {
2033 assert_eq!(results.len(), 2);
2034 if let Ok(()) = results[0] {} else { panic!(); }
2035 if let Err(APIError::MonitorUpdateFailed) = results[1] {} else { panic!(); }
2036 } else { panic!(); }
2037 check_added_monitors!(nodes[0], 2);
2038 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Ok(()));
2040 // Pass the first HTLC of the payment along to nodes[3].
2041 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
2042 assert_eq!(events.len(), 1);
2043 pass_along_path(&nodes[0], &[&nodes[1], &nodes[3]], 0, payment_hash.clone(), Some(payment_secret), events.pop().unwrap(), false, None);
2045 // And check that, after we successfully update the monitor for chan_2 we can pass the second
2046 // HTLC along to nodes[3] and claim the whole payment back to nodes[0].
2047 let (outpoint, latest_update) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&chan_2_id).unwrap().clone();
2048 nodes[0].node.channel_monitor_updated(&outpoint, latest_update);
2049 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
2050 assert_eq!(events.len(), 1);
2051 pass_along_path(&nodes[0], &[&nodes[2], &nodes[3]], 200_000, payment_hash.clone(), Some(payment_secret), events.pop().unwrap(), true, None);
2053 claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], false, payment_preimage);
2056 fn do_channel_holding_cell_serialize(disconnect: bool, reload_a: bool) {
2057 // Tests that, when we serialize a channel with AddHTLC entries in the holding cell, we
2058 // properly free them on reconnect. We previously failed such HTLCs upon serialization, but
2059 // that behavior was both somewhat unexpected and also broken (there was a debug assertion
2060 // which failed in such a case).
2061 let chanmon_cfgs = create_chanmon_cfgs(2);
2062 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
2063 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
2064 let persister: test_utils::TestPersister;
2065 let new_chain_monitor: test_utils::TestChainMonitor;
2066 let nodes_0_deserialized: ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
2067 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
2069 let chan_id = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 15_000_000, 7_000_000_000, InitFeatures::known(), InitFeatures::known()).2;
2070 let (payment_preimage_1, payment_hash_1, payment_secret_1) = get_payment_preimage_hash!(&nodes[1]);
2071 let (payment_preimage_2, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(&nodes[1]);
2073 // Do a really complicated dance to get an HTLC into the holding cell, with MonitorUpdateFailed
2074 // set but AwaitingRemoteRevoke unset. When this test was written, any attempts to send an HTLC
2075 // while MonitorUpdateFailed is set are immediately failed-backwards. Thus, the only way to get
2076 // an AddHTLC into the holding cell is to add it while AwaitingRemoteRevoke is set but
2077 // MonitorUpdateFailed is unset, and then swap the flags.
2080 // a) routing a payment from node B to node A,
2081 // b) sending a payment from node A to node B without delivering any of the generated messages,
2082 // putting node A in AwaitingRemoteRevoke,
2083 // c) sending a second payment from node A to node B, which is immediately placed in the
2085 // d) claiming the first payment from B, allowing us to fail the monitor update which occurs
2086 // when we try to persist the payment preimage,
2087 // e) delivering A's commitment_signed from (b) and the resulting B revoke_and_ack message,
2088 // clearing AwaitingRemoteRevoke on node A.
2090 // Note that because, at the end, MonitorUpdateFailed is still set, the HTLC generated in (c)
2091 // will not be freed from the holding cell.
2092 let (payment_preimage_0, _, _) = route_payment(&nodes[1], &[&nodes[0]], 100000);
2095 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
2096 get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, None, &Vec::new(), 100000, TEST_FINAL_CLTV, nodes[0].logger).unwrap()
2099 nodes[0].node.send_payment(&route, payment_hash_1, &Some(payment_secret_1)).unwrap();
2100 check_added_monitors!(nodes[0], 1);
2101 let send = SendEvent::from_node(&nodes[0]);
2102 assert_eq!(send.msgs.len(), 1);
2104 nodes[0].node.send_payment(&route, payment_hash_2, &Some(payment_secret_2)).unwrap();
2105 check_added_monitors!(nodes[0], 0);
2107 *nodes[0].chain_monitor.update_ret.lock().unwrap() = Some(Err(ChannelMonitorUpdateErr::TemporaryFailure));
2108 assert!(nodes[0].node.claim_funds(payment_preimage_0));
2109 check_added_monitors!(nodes[0], 1);
2111 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send.msgs[0]);
2112 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send.commitment_msg);
2113 check_added_monitors!(nodes[1], 1);
2115 let (raa, cs) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
2117 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &raa);
2118 check_added_monitors!(nodes[0], 1);
2121 // Optionally reload nodes[0] entirely through a serialization roundtrip, otherwise just
2122 // disconnect the peers. Note that the fuzzer originally found this issue because
2123 // deserializing a ChannelManager in this state causes an assertion failure.
2125 let nodes_0_serialized = nodes[0].node.encode();
2126 let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
2127 nodes[0].chain_monitor.chain_monitor.monitors.read().unwrap().iter().next().unwrap().1.write(&mut chan_0_monitor_serialized).unwrap();
2129 persister = test_utils::TestPersister::new();
2130 let keys_manager = &chanmon_cfgs[0].keys_manager;
2131 new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &persister, keys_manager);
2132 nodes[0].chain_monitor = &new_chain_monitor;
2133 let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
2134 let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
2135 &mut chan_0_monitor_read, keys_manager).unwrap();
2136 assert!(chan_0_monitor_read.is_empty());
2138 let mut nodes_0_read = &nodes_0_serialized[..];
2139 let config = UserConfig::default();
2140 nodes_0_deserialized = {
2141 let mut channel_monitors = HashMap::new();
2142 channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
2143 <(BlockHash, ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
2144 default_config: config,
2146 fee_estimator: node_cfgs[0].fee_estimator,
2147 chain_monitor: nodes[0].chain_monitor,
2148 tx_broadcaster: nodes[0].tx_broadcaster.clone(),
2149 logger: nodes[0].logger,
2153 nodes[0].node = &nodes_0_deserialized;
2154 assert!(nodes_0_read.is_empty());
2156 nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0.clone(), chan_0_monitor).unwrap();
2157 check_added_monitors!(nodes[0], 1);
2159 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
2161 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
2163 // Now reconnect the two
2164 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
2165 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
2166 assert_eq!(reestablish_1.len(), 1);
2167 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
2168 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
2169 assert_eq!(reestablish_2.len(), 1);
2171 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
2172 let resp_1 = handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
2173 check_added_monitors!(nodes[1], 0);
2175 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
2176 let resp_0 = handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
2178 assert!(resp_0.0.is_none());
2179 assert!(resp_0.1.is_none());
2180 assert!(resp_0.2.is_none());
2181 assert!(resp_1.0.is_none());
2182 assert!(resp_1.1.is_none());
2184 // Check that the freshly-generated cs is equal to the original (which we will deliver in a
2186 if let Some(pending_cs) = resp_1.2 {
2187 assert!(pending_cs.update_add_htlcs.is_empty());
2188 assert!(pending_cs.update_fail_htlcs.is_empty());
2189 assert!(pending_cs.update_fulfill_htlcs.is_empty());
2190 assert_eq!(pending_cs.commitment_signed, cs);
2191 } else { panic!(); }
2193 // There should be no monitor updates as we are still pending awaiting a failed one.
2194 check_added_monitors!(nodes[0], 0);
2195 check_added_monitors!(nodes[1], 0);
2198 // If we finish updating the monitor, we should free the holding cell right away (this did
2199 // not occur prior to #756).
2200 *nodes[0].chain_monitor.update_ret.lock().unwrap() = None;
2201 let (funding_txo, mon_id) = nodes[0].chain_monitor.latest_monitor_update_id.lock().unwrap().get(&chan_id).unwrap().clone();
2202 nodes[0].node.channel_monitor_updated(&funding_txo, mon_id);
2204 // New outbound messages should be generated immediately upon a call to
2205 // get_and_clear_pending_msg_events (but not before).
2206 check_added_monitors!(nodes[0], 0);
2207 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
2208 check_added_monitors!(nodes[0], 1);
2209 assert_eq!(events.len(), 1);
2211 // Deliver the pending in-flight CS
2212 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &cs);
2213 check_added_monitors!(nodes[0], 1);
2215 let commitment_msg = match events.pop().unwrap() {
2216 MessageSendEvent::UpdateHTLCs { node_id, updates } => {
2217 assert_eq!(node_id, nodes[1].node.get_our_node_id());
2218 assert!(updates.update_fail_htlcs.is_empty());
2219 assert!(updates.update_fail_malformed_htlcs.is_empty());
2220 assert!(updates.update_fee.is_none());
2221 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
2222 nodes[1].node.handle_update_fulfill_htlc(&nodes[0].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
2223 expect_payment_sent!(nodes[1], payment_preimage_0);
2224 assert_eq!(updates.update_add_htlcs.len(), 1);
2225 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
2226 updates.commitment_signed
2228 _ => panic!("Unexpected event type!"),
2231 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &commitment_msg);
2232 check_added_monitors!(nodes[1], 1);
2234 let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
2235 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack);
2236 expect_pending_htlcs_forwardable!(nodes[1]);
2237 expect_payment_received!(nodes[1], payment_hash_1, payment_secret_1, 100000);
2238 check_added_monitors!(nodes[1], 1);
2240 commitment_signed_dance!(nodes[1], nodes[0], (), false, true, false);
2242 expect_pending_htlcs_forwardable!(nodes[1]);
2243 expect_payment_received!(nodes[1], payment_hash_2, payment_secret_2, 100000);
2245 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_1);
2246 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2);
2249 fn channel_holding_cell_serialize() {
2250 do_channel_holding_cell_serialize(true, true);
2251 do_channel_holding_cell_serialize(true, false);
2252 do_channel_holding_cell_serialize(false, true); // last arg doesn't matter
2255 #[derive(PartialEq)]
2256 enum HTLCStatusAtDupClaim {
2261 fn do_test_reconnect_dup_htlc_claims(htlc_status: HTLCStatusAtDupClaim, second_fails: bool) {
2262 // When receiving an update_fulfill_htlc message, we immediately forward the claim backwards
2263 // along the payment path before waiting for a full commitment_signed dance. This is great, but
2264 // can cause duplicative claims if a node sends an update_fulfill_htlc message, disconnects,
2265 // reconnects, and then has to re-send its update_fulfill_htlc message again.
2266 // In previous code, we didn't handle the double-claim correctly, spuriously closing the
2267 // channel on which the inbound HTLC was received.
2268 let chanmon_cfgs = create_chanmon_cfgs(3);
2269 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
2270 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
2271 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
2273 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2274 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()).2;
2276 let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100_000);
2278 let mut as_raa = None;
2279 if htlc_status == HTLCStatusAtDupClaim::HoldingCell {
2280 // In order to get the HTLC claim into the holding cell at nodes[1], we need nodes[1] to be
2281 // awaiting a remote revoke_and_ack from nodes[0].
2282 let (_, second_payment_hash, second_payment_secret) = get_payment_preimage_hash!(nodes[1]);
2283 let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph.read().unwrap(),
2284 &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 100_000, TEST_FINAL_CLTV, nodes[1].logger).unwrap();
2285 nodes[0].node.send_payment(&route, second_payment_hash, &Some(second_payment_secret)).unwrap();
2286 check_added_monitors!(nodes[0], 1);
2288 let send_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
2289 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
2290 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_event.commitment_msg);
2291 check_added_monitors!(nodes[1], 1);
2293 let (bs_raa, bs_cs) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
2294 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
2295 check_added_monitors!(nodes[0], 1);
2296 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_cs);
2297 check_added_monitors!(nodes[0], 1);
2299 as_raa = Some(get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id()));
2302 let fulfill_msg = msgs::UpdateFulfillHTLC {
2308 assert!(nodes[2].node.fail_htlc_backwards(&payment_hash));
2309 expect_pending_htlcs_forwardable!(nodes[2]);
2310 check_added_monitors!(nodes[2], 1);
2311 get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
2313 assert!(nodes[2].node.claim_funds(payment_preimage));
2314 check_added_monitors!(nodes[2], 1);
2315 let cs_updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
2316 assert_eq!(cs_updates.update_fulfill_htlcs.len(), 1);
2317 // Check that the message we're about to deliver matches the one generated:
2318 assert_eq!(fulfill_msg, cs_updates.update_fulfill_htlcs[0]);
2320 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &fulfill_msg);
2321 check_added_monitors!(nodes[1], 1);
2323 let mut bs_updates = None;
2324 if htlc_status != HTLCStatusAtDupClaim::HoldingCell {
2325 bs_updates = Some(get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()));
2326 assert_eq!(bs_updates.as_ref().unwrap().update_fulfill_htlcs.len(), 1);
2327 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.as_ref().unwrap().update_fulfill_htlcs[0]);
2328 expect_payment_sent!(nodes[0], payment_preimage);
2329 if htlc_status == HTLCStatusAtDupClaim::Cleared {
2330 commitment_signed_dance!(nodes[0], nodes[1], &bs_updates.as_ref().unwrap().commitment_signed, false);
2333 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
2336 nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), false);
2337 nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
2340 reconnect_nodes(&nodes[1], &nodes[2], (false, false), (0, 0), (0, 0), (1, 0), (0, 0), (0, 0), (false, false));
2341 expect_pending_htlcs_forwardable!(nodes[1]);
2343 reconnect_nodes(&nodes[1], &nodes[2], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (0, 0), (false, false));
2346 if htlc_status == HTLCStatusAtDupClaim::HoldingCell {
2347 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa.unwrap());
2348 check_added_monitors!(nodes[1], 1);
2349 expect_pending_htlcs_forwardable_ignore!(nodes[1]); // We finally receive the second payment, but don't claim it
2351 bs_updates = Some(get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()));
2352 assert_eq!(bs_updates.as_ref().unwrap().update_fulfill_htlcs.len(), 1);
2353 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.as_ref().unwrap().update_fulfill_htlcs[0]);
2354 expect_payment_sent!(nodes[0], payment_preimage);
2356 if htlc_status != HTLCStatusAtDupClaim::Cleared {
2357 commitment_signed_dance!(nodes[0], nodes[1], &bs_updates.as_ref().unwrap().commitment_signed, false);
2362 fn test_reconnect_dup_htlc_claims() {
2363 do_test_reconnect_dup_htlc_claims(HTLCStatusAtDupClaim::Received, false);
2364 do_test_reconnect_dup_htlc_claims(HTLCStatusAtDupClaim::HoldingCell, false);
2365 do_test_reconnect_dup_htlc_claims(HTLCStatusAtDupClaim::Cleared, false);
2366 do_test_reconnect_dup_htlc_claims(HTLCStatusAtDupClaim::Received, true);
2367 do_test_reconnect_dup_htlc_claims(HTLCStatusAtDupClaim::HoldingCell, true);
2368 do_test_reconnect_dup_htlc_claims(HTLCStatusAtDupClaim::Cleared, true);