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 //! Tests of our shutdown and closing_signed negotiation logic.
12 use crate::sign::{EntropySource, SignerProvider};
13 use crate::chain::transaction::OutPoint;
14 use crate::events::{Event, MessageSendEvent, MessageSendEventsProvider, ClosureReason};
15 use crate::ln::channelmanager::{self, PaymentSendFailure, PaymentId, RecipientOnionFields, ChannelShutdownState, ChannelDetails};
16 use crate::routing::router::{PaymentParameters, get_route};
18 use crate::ln::msgs::{ChannelMessageHandler, ErrorAction};
19 use crate::ln::script::ShutdownScript;
20 use crate::util::test_utils;
21 use crate::util::test_utils::OnGetShutdownScriptpubkey;
22 use crate::util::errors::APIError;
23 use crate::util::config::UserConfig;
24 use crate::util::string::UntrustedString;
26 use bitcoin::blockdata::script::Builder;
27 use bitcoin::blockdata::opcodes;
28 use bitcoin::network::constants::Network;
29 use bitcoin::util::address::WitnessVersion;
33 use core::default::Default;
34 use std::convert::TryFrom;
36 use crate::ln::functional_test_utils::*;
39 fn pre_funding_lock_shutdown_test() {
40 // Test sending a shutdown prior to channel_ready after funding generation
41 let chanmon_cfgs = create_chanmon_cfgs(2);
42 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
43 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
44 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
45 let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 8000000, 0);
46 mine_transaction(&nodes[0], &tx);
47 mine_transaction(&nodes[1], &tx);
49 nodes[0].node.close_channel(&OutPoint { txid: tx.txid(), index: 0 }.to_channel_id(), &nodes[1].node.get_our_node_id()).unwrap();
50 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
51 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
52 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
53 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
55 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
56 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
57 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
58 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
59 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
60 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
61 let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
62 assert!(node_1_none.is_none());
64 assert!(nodes[0].node.list_channels().is_empty());
65 assert!(nodes[1].node.list_channels().is_empty());
66 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 8000000);
67 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 8000000);
71 fn expect_channel_shutdown_state() {
72 // Test sending a shutdown prior to channel_ready after funding generation
73 let chanmon_cfgs = create_chanmon_cfgs(2);
74 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
75 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
76 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
77 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
79 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::NotShuttingDown);
81 nodes[0].node.close_channel(&chan_1.2, &nodes[1].node.get_our_node_id()).unwrap();
83 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::ShutdownInitiated);
84 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NotShuttingDown);
86 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
87 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
89 // node1 goes into NegotiatingClosingFee since there are no HTLCs in flight, note that it
90 // doesnt mean that node1 has sent/recved its closing signed message
91 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::ShutdownInitiated);
92 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NegotiatingClosingFee);
94 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
95 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
97 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::NegotiatingClosingFee);
98 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NegotiatingClosingFee);
100 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
101 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
102 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
103 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
104 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
105 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
106 let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
107 assert!(node_1_none.is_none());
109 assert!(nodes[0].node.list_channels().is_empty());
110 assert!(nodes[1].node.list_channels().is_empty());
111 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
112 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
116 fn expect_channel_shutdown_state_with_htlc() {
117 // Test sending a shutdown with outstanding updates pending.
118 let chanmon_cfgs = create_chanmon_cfgs(3);
119 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
120 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
121 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
122 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
123 let _chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
125 let (payment_preimage_0, payment_hash_0, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100_000);
127 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::NotShuttingDown);
128 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NotShuttingDown);
130 nodes[0].node.close_channel(&chan_1.2, &nodes[1].node.get_our_node_id()).unwrap();
132 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::ShutdownInitiated);
133 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NotShuttingDown);
135 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
136 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
138 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::ShutdownInitiated);
139 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::ResolvingHTLCs);
141 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
142 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
144 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::ResolvingHTLCs);
145 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::ResolvingHTLCs);
147 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
148 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
150 // Claim Funds on Node2
151 nodes[2].node.claim_funds(payment_preimage_0);
152 check_added_monitors!(nodes[2], 1);
153 expect_payment_claimed!(nodes[2], payment_hash_0, 100_000);
155 // Fulfil HTLCs on node1 and node0
156 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
157 assert!(updates.update_add_htlcs.is_empty());
158 assert!(updates.update_fail_htlcs.is_empty());
159 assert!(updates.update_fail_malformed_htlcs.is_empty());
160 assert!(updates.update_fee.is_none());
161 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
162 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
163 expect_payment_forwarded!(nodes[1], nodes[0], nodes[2], Some(1000), false, false);
164 check_added_monitors!(nodes[1], 1);
165 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
166 commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false);
168 // Still in "resolvingHTLCs" on chan1 after htlc removed on chan2
169 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::ResolvingHTLCs);
170 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::ResolvingHTLCs);
172 assert!(updates_2.update_add_htlcs.is_empty());
173 assert!(updates_2.update_fail_htlcs.is_empty());
174 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
175 assert!(updates_2.update_fee.is_none());
176 assert_eq!(updates_2.update_fulfill_htlcs.len(), 1);
177 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]);
178 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
179 expect_payment_sent!(nodes[0], payment_preimage_0);
181 // all htlcs removed, chan1 advances to NegotiatingClosingFee
182 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::NegotiatingClosingFee);
183 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NegotiatingClosingFee);
185 // ClosingSignNegotion process
186 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
187 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
188 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
189 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
190 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
191 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
192 let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
193 assert!(node_1_none.is_none());
194 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
195 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
197 // Shutdown basically removes the channelDetails, testing of shutdowncomplete state unnecessary
198 assert!(nodes[0].node.list_channels().is_empty());
202 fn expect_channel_shutdown_state_with_force_closure() {
203 // Test sending a shutdown prior to channel_ready after funding generation
204 let chanmon_cfgs = create_chanmon_cfgs(2);
205 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
206 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
207 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
208 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
210 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::NotShuttingDown);
211 expect_channel_shutdown_state!(nodes[1], chan_1.2, ChannelShutdownState::NotShuttingDown);
213 nodes[1].node.force_close_broadcasting_latest_txn(&chan_1.2, &nodes[0].node.get_our_node_id()).unwrap();
214 check_closed_broadcast!(nodes[1], true);
215 check_added_monitors!(nodes[1], 1);
217 expect_channel_shutdown_state!(nodes[0], chan_1.2, ChannelShutdownState::NotShuttingDown);
218 assert!(nodes[1].node.list_channels().is_empty());
220 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
221 assert_eq!(node_txn.len(), 1);
222 check_spends!(node_txn[0], chan_1.3);
223 mine_transaction(&nodes[0], &node_txn[0]);
224 check_added_monitors!(nodes[0], 1);
226 assert!(nodes[0].node.list_channels().is_empty());
227 assert!(nodes[1].node.list_channels().is_empty());
228 check_closed_broadcast!(nodes[0], true);
229 check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
230 check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 100000);
234 fn updates_shutdown_wait() {
235 // Test sending a shutdown with outstanding updates pending
236 let chanmon_cfgs = create_chanmon_cfgs(3);
237 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
238 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
239 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
240 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
241 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
242 let logger = test_utils::TestLogger::new();
243 let scorer = test_utils::TestScorer::new();
244 let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
245 let random_seed_bytes = keys_manager.get_secure_random_bytes();
247 let (payment_preimage_0, payment_hash_0, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100_000);
249 nodes[0].node.close_channel(&chan_1.2, &nodes[1].node.get_our_node_id()).unwrap();
250 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
251 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
252 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
253 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
255 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
256 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
258 let (_, payment_hash, payment_secret) = get_payment_preimage_hash!(nodes[0]);
260 let payment_params_1 = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV).with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
261 let route_1 = get_route(&nodes[0].node.get_our_node_id(), &payment_params_1, &nodes[0].network_graph.read_only(), None, 100000, &logger, &scorer, &(), &random_seed_bytes).unwrap();
262 let payment_params_2 = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), TEST_FINAL_CLTV).with_bolt11_features(nodes[0].node.invoice_features()).unwrap();
263 let route_2 = get_route(&nodes[1].node.get_our_node_id(), &payment_params_2, &nodes[1].network_graph.read_only(), None, 100000, &logger, &scorer, &(), &random_seed_bytes).unwrap();
264 unwrap_send_err!(nodes[0].node.send_payment_with_route(&route_1, payment_hash,
265 RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)
266 ), true, APIError::ChannelUnavailable {..}, {});
267 unwrap_send_err!(nodes[1].node.send_payment_with_route(&route_2, payment_hash,
268 RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)
269 ), true, APIError::ChannelUnavailable {..}, {});
271 nodes[2].node.claim_funds(payment_preimage_0);
272 check_added_monitors!(nodes[2], 1);
273 expect_payment_claimed!(nodes[2], payment_hash_0, 100_000);
275 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
276 assert!(updates.update_add_htlcs.is_empty());
277 assert!(updates.update_fail_htlcs.is_empty());
278 assert!(updates.update_fail_malformed_htlcs.is_empty());
279 assert!(updates.update_fee.is_none());
280 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
281 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
282 expect_payment_forwarded!(nodes[1], nodes[0], nodes[2], Some(1000), false, false);
283 check_added_monitors!(nodes[1], 1);
284 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
285 commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false);
287 assert!(updates_2.update_add_htlcs.is_empty());
288 assert!(updates_2.update_fail_htlcs.is_empty());
289 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
290 assert!(updates_2.update_fee.is_none());
291 assert_eq!(updates_2.update_fulfill_htlcs.len(), 1);
292 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]);
293 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
294 expect_payment_sent!(nodes[0], payment_preimage_0);
296 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
297 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
298 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
299 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
300 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
301 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
302 let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
303 assert!(node_1_none.is_none());
304 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
305 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
307 assert!(nodes[0].node.list_channels().is_empty());
309 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
310 nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
311 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true);
312 assert!(nodes[1].node.list_channels().is_empty());
313 assert!(nodes[2].node.list_channels().is_empty());
314 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
315 check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
319 fn htlc_fail_async_shutdown() {
320 // Test HTLCs fail if shutdown starts even if messages are delivered out-of-order
321 let chanmon_cfgs = create_chanmon_cfgs(3);
322 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
323 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
324 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
325 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
326 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
328 let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], 100000);
329 nodes[0].node.send_payment_with_route(&route, our_payment_hash,
330 RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)).unwrap();
331 check_added_monitors!(nodes[0], 1);
332 let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
333 assert_eq!(updates.update_add_htlcs.len(), 1);
334 assert!(updates.update_fulfill_htlcs.is_empty());
335 assert!(updates.update_fail_htlcs.is_empty());
336 assert!(updates.update_fail_malformed_htlcs.is_empty());
337 assert!(updates.update_fee.is_none());
339 nodes[1].node.close_channel(&chan_1.2, &nodes[0].node.get_our_node_id()).unwrap();
340 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
341 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
342 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
344 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
345 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &updates.commitment_signed);
346 check_added_monitors!(nodes[1], 1);
347 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
348 commitment_signed_dance!(nodes[1], nodes[0], (), false, true, false);
350 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
351 assert!(updates_2.update_add_htlcs.is_empty());
352 assert!(updates_2.update_fulfill_htlcs.is_empty());
353 assert_eq!(updates_2.update_fail_htlcs.len(), 1);
354 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
355 assert!(updates_2.update_fee.is_none());
357 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fail_htlcs[0]);
358 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
360 expect_payment_failed_with_update!(nodes[0], our_payment_hash, false, chan_2.0.contents.short_channel_id, true);
362 let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
363 assert_eq!(msg_events.len(), 1);
364 let node_0_closing_signed = match msg_events[0] {
365 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
366 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
369 _ => panic!("Unexpected event"),
372 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
373 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
374 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
375 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
376 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
377 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
378 let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
379 assert!(node_1_none.is_none());
381 assert!(nodes[0].node.list_channels().is_empty());
383 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
384 nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
385 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true);
386 assert!(nodes[1].node.list_channels().is_empty());
387 assert!(nodes[2].node.list_channels().is_empty());
388 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
389 check_closed_event!(nodes[1], 2, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id(), nodes[2].node.get_our_node_id()], 100000);
390 check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
393 fn do_test_shutdown_rebroadcast(recv_count: u8) {
394 // Test that shutdown/closing_signed is re-sent on reconnect with a variable number of
395 // messages delivered prior to disconnect
396 let chanmon_cfgs = create_chanmon_cfgs(3);
397 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
398 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
399 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
400 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
401 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
403 let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100_000);
405 nodes[1].node.close_channel(&chan_1.2, &nodes[0].node.get_our_node_id()).unwrap();
406 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
408 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
409 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
411 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
415 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
416 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
418 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init {
419 features: nodes[1].node.init_features(), networks: None, remote_network_address: None
421 let node_0_reestablish = get_chan_reestablish_msgs!(nodes[0], nodes[1]).pop().unwrap();
422 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
423 features: nodes[0].node.init_features(), networks: None, remote_network_address: None
425 let node_1_reestablish = get_chan_reestablish_msgs!(nodes[1], nodes[0]).pop().unwrap();
427 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_reestablish);
428 let node_1_2nd_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
429 assert!(node_1_shutdown == node_1_2nd_shutdown);
431 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_reestablish);
432 let node_0_2nd_shutdown = if recv_count > 0 {
433 let node_0_2nd_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
434 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_2nd_shutdown);
437 let node_0_chan_update = get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
438 assert_eq!(node_0_chan_update.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
439 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_2nd_shutdown);
440 get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id())
442 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_2nd_shutdown);
444 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
445 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
447 nodes[2].node.claim_funds(payment_preimage);
448 check_added_monitors!(nodes[2], 1);
449 expect_payment_claimed!(nodes[2], payment_hash, 100_000);
451 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
452 assert!(updates.update_add_htlcs.is_empty());
453 assert!(updates.update_fail_htlcs.is_empty());
454 assert!(updates.update_fail_malformed_htlcs.is_empty());
455 assert!(updates.update_fee.is_none());
456 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
457 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
458 expect_payment_forwarded!(nodes[1], nodes[0], nodes[2], Some(1000), false, false);
459 check_added_monitors!(nodes[1], 1);
460 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
461 commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false);
463 assert!(updates_2.update_add_htlcs.is_empty());
464 assert!(updates_2.update_fail_htlcs.is_empty());
465 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
466 assert!(updates_2.update_fee.is_none());
467 assert_eq!(updates_2.update_fulfill_htlcs.len(), 1);
468 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]);
469 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
470 expect_payment_sent!(nodes[0], payment_preimage);
472 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
474 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
475 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
476 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
477 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
478 assert!(node_0_2nd_closing_signed.is_some());
481 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
482 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
484 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
485 features: nodes[0].node.init_features(), networks: None, remote_network_address: None
487 let node_1_2nd_reestablish = get_chan_reestablish_msgs!(nodes[1], nodes[0]).pop().unwrap();
488 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init {
489 features: nodes[1].node.init_features(), networks: None, remote_network_address: None
492 // If all closing_signeds weren't delivered we can just resume where we left off...
493 let node_0_2nd_reestablish = get_chan_reestablish_msgs!(nodes[0], nodes[1]).pop().unwrap();
495 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_2nd_reestablish);
496 let node_0_msgs = nodes[0].node.get_and_clear_pending_msg_events();
497 assert_eq!(node_0_msgs.len(), 2);
498 let node_0_2nd_closing_signed = match node_0_msgs[1] {
499 MessageSendEvent::SendClosingSigned { ref msg, .. } => {
500 assert_eq!(node_0_closing_signed, *msg);
506 let node_0_3rd_shutdown = match node_0_msgs[0] {
507 MessageSendEvent::SendShutdown { ref msg, .. } => {
508 assert_eq!(node_0_2nd_shutdown, *msg);
513 assert!(node_0_2nd_shutdown == node_0_3rd_shutdown);
515 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_2nd_reestablish);
516 let node_1_3rd_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
517 assert!(node_1_3rd_shutdown == node_1_2nd_shutdown);
519 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_3rd_shutdown);
520 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
522 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_3rd_shutdown);
524 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed);
525 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
526 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
527 let (_, node_0_2nd_closing_signed) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
528 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.unwrap());
529 let (_, node_1_none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
530 assert!(node_1_none.is_none());
531 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
533 // If one node, however, received + responded with an identical closing_signed we end
534 // up erroring and node[0] will try to broadcast its own latest commitment transaction.
535 // There isn't really anything better we can do simply, but in the future we might
536 // explore storing a set of recently-closed channels that got disconnected during
537 // closing_signed and avoiding broadcasting local commitment txn for some timeout to
538 // give our counterparty enough time to (potentially) broadcast a cooperative closing
540 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
542 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_2nd_reestablish);
543 let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
544 assert_eq!(msg_events.len(), 1);
545 if let MessageSendEvent::HandleError { ref action, .. } = msg_events[0] {
547 &ErrorAction::SendErrorMessage { ref msg } => {
548 nodes[1].node.handle_error(&nodes[0].node.get_our_node_id(), &msg);
549 assert_eq!(msg.channel_id, chan_1.2);
551 _ => panic!("Unexpected event!"),
553 } else { panic!("Needed SendErrorMessage close"); }
555 // get_closing_signed_broadcast usually eats the BroadcastChannelUpdate for us and
556 // checks it, but in this case nodes[1] didn't ever get a chance to receive a
557 // closing_signed so we do it ourselves
558 check_closed_broadcast!(nodes[1], false);
559 check_added_monitors!(nodes[1], 1);
560 check_closed_event!(nodes[1], 1, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString(format!("Got a message for a channel from the wrong node! No such channel for the passed counterparty_node_id {}", &nodes[1].node.get_our_node_id())) }
561 , [nodes[0].node.get_our_node_id()], 100000);
564 assert!(nodes[0].node.list_channels().is_empty());
566 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
567 nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
568 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true);
569 assert!(nodes[1].node.list_channels().is_empty());
570 assert!(nodes[2].node.list_channels().is_empty());
571 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
572 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
573 check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
577 fn test_shutdown_rebroadcast() {
578 do_test_shutdown_rebroadcast(0);
579 do_test_shutdown_rebroadcast(1);
580 do_test_shutdown_rebroadcast(2);
584 fn test_upfront_shutdown_script() {
585 // BOLT 2 : Option upfront shutdown script, if peer commit its closing_script at channel opening
586 // enforce it at shutdown message
588 let mut config = UserConfig::default();
589 config.channel_handshake_config.announced_channel = true;
590 config.channel_handshake_limits.force_announced_channel_preference = false;
591 config.channel_handshake_config.commit_upfront_shutdown_pubkey = false;
592 let user_cfgs = [None, Some(config), None];
593 let chanmon_cfgs = create_chanmon_cfgs(3);
594 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
595 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
596 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
598 // We test that in case of peer committing upfront to a script, if it changes at closing, we refuse to sign
599 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 1000000, 1000000);
600 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[2].node.get_our_node_id()).unwrap();
601 let node_0_orig_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[2].node.get_our_node_id());
602 let mut node_0_shutdown = node_0_orig_shutdown.clone();
603 node_0_shutdown.scriptpubkey = Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script().to_p2sh();
604 // Test we enforce upfront_scriptpbukey if by providing a different one at closing that we warn
605 // the peer and ignore the message.
606 nodes[2].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
607 assert!(regex::Regex::new(r"Got shutdown request with a scriptpubkey \([A-Fa-f0-9]+\) which did not match their previous scriptpubkey.")
608 .unwrap().is_match(&check_warn_msg!(nodes[2], nodes[0].node.get_our_node_id(), chan.2)));
609 // This allows nodes[2] to retry the shutdown message, which should get a response:
610 nodes[2].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_orig_shutdown);
611 get_event_msg!(nodes[2], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
613 // We test that in case of peer committing upfront to a script, if it doesn't change at closing, we sign
614 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 1000000, 1000000);
615 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[2].node.get_our_node_id()).unwrap();
616 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[2].node.get_our_node_id());
617 // We test that in case of peer committing upfront to a script, if it oesn't change at closing, we sign
618 nodes[2].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
619 let events = nodes[2].node.get_and_clear_pending_msg_events();
620 assert_eq!(events.len(), 1);
622 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[0].node.get_our_node_id()) }
623 _ => panic!("Unexpected event"),
626 // We test that if case of peer non-signaling we don't enforce committed script at channel opening
627 *nodes[0].override_init_features.borrow_mut() = Some(nodes[0].node.init_features().clear_upfront_shutdown_script());
628 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000);
629 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[1].node.get_our_node_id()).unwrap();
630 let node_1_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
631 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_1_shutdown);
632 check_added_monitors!(nodes[1], 1);
633 let events = nodes[1].node.get_and_clear_pending_msg_events();
634 assert_eq!(events.len(), 1);
636 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[0].node.get_our_node_id()) }
637 _ => panic!("Unexpected event"),
640 // We test that if user opt-out, we provide a zero-length script at channel opening and we are able to close
641 // channel smoothly, opt-out is from channel initiator here
642 *nodes[0].override_init_features.borrow_mut() = None;
643 let chan = create_announced_chan_between_nodes_with_value(&nodes, 1, 0, 1000000, 1000000);
644 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()).unwrap();
645 check_added_monitors!(nodes[1], 1);
646 let node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
647 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
648 let events = nodes[0].node.get_and_clear_pending_msg_events();
649 assert_eq!(events.len(), 1);
651 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
652 _ => panic!("Unexpected event"),
655 //// We test that if user opt-out, we provide a zero-length script at channel opening and we are able to close
656 //// channel smoothly
657 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000);
658 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()).unwrap();
659 check_added_monitors!(nodes[1], 1);
660 let node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
661 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
662 let events = nodes[0].node.get_and_clear_pending_msg_events();
663 assert_eq!(events.len(), 2);
665 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
666 _ => panic!("Unexpected event"),
669 MessageSendEvent::SendClosingSigned { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
670 _ => panic!("Unexpected event"),
675 fn test_unsupported_anysegwit_upfront_shutdown_script() {
676 let chanmon_cfgs = create_chanmon_cfgs(2);
677 let mut node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
678 // Clear shutdown_anysegwit on initiator
679 *node_cfgs[0].override_init_features.borrow_mut() = Some(channelmanager::provided_init_features(&test_default_channel_config()).clear_shutdown_anysegwit());
680 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
681 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
683 // Use a non-v0 segwit script supported by option_shutdown_anysegwit
684 let anysegwit_shutdown_script = Builder::new()
686 .push_slice(&[0, 40])
689 // Check script when handling an open_channel message
690 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
691 let mut open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
692 open_channel.shutdown_scriptpubkey = Some(anysegwit_shutdown_script.clone());
693 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel);
695 let events = nodes[1].node.get_and_clear_pending_msg_events();
696 assert_eq!(events.len(), 1);
698 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id } => {
699 assert_eq!(node_id, nodes[0].node.get_our_node_id());
700 assert_eq!(msg.data, "Peer is signaling upfront_shutdown but has provided an unacceptable scriptpubkey format: Script(OP_PUSHNUM_16 OP_PUSHBYTES_2 0028)");
702 _ => panic!("Unexpected event"),
705 let chanmon_cfgs = create_chanmon_cfgs(2);
706 let mut node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
707 // Clear shutdown_anysegwit on responder
708 *node_cfgs[1].override_init_features.borrow_mut() = Some(channelmanager::provided_init_features(&test_default_channel_config()).clear_shutdown_anysegwit());
709 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
710 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
712 // Check script when handling an accept_channel message
713 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
714 let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
715 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel);
716 let mut accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
717 accept_channel.shutdown_scriptpubkey = Some(anysegwit_shutdown_script.clone());
718 nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel);
720 let events = nodes[0].node.get_and_clear_pending_msg_events();
721 assert_eq!(events.len(), 1);
723 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id } => {
724 assert_eq!(node_id, nodes[1].node.get_our_node_id());
725 assert_eq!(msg.data, "Peer is signaling upfront_shutdown but has provided an unacceptable scriptpubkey format: Script(OP_PUSHNUM_16 OP_PUSHBYTES_2 0028)");
727 _ => panic!("Unexpected event"),
729 check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: "Peer is signaling upfront_shutdown but has provided an unacceptable scriptpubkey format: Script(OP_PUSHNUM_16 OP_PUSHBYTES_2 0028)".to_string() }
730 , [nodes[1].node.get_our_node_id()], 100000);
734 fn test_invalid_upfront_shutdown_script() {
735 let chanmon_cfgs = create_chanmon_cfgs(2);
736 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
737 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
738 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
740 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
742 // Use a segwit v0 script with an unsupported witness program
743 let mut open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
744 open_channel.shutdown_scriptpubkey = Some(Builder::new().push_int(0)
747 nodes[0].node.handle_open_channel(&nodes[1].node.get_our_node_id(), &open_channel);
749 let events = nodes[0].node.get_and_clear_pending_msg_events();
750 assert_eq!(events.len(), 1);
752 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id } => {
753 assert_eq!(node_id, nodes[1].node.get_our_node_id());
754 assert_eq!(msg.data, "Peer is signaling upfront_shutdown but has provided an unacceptable scriptpubkey format: Script(OP_0 OP_PUSHBYTES_2 0000)");
756 _ => panic!("Unexpected event"),
761 fn test_segwit_v0_shutdown_script() {
762 let mut config = UserConfig::default();
763 config.channel_handshake_config.announced_channel = true;
764 config.channel_handshake_limits.force_announced_channel_preference = false;
765 config.channel_handshake_config.commit_upfront_shutdown_pubkey = false;
766 let user_cfgs = [None, Some(config), None];
767 let chanmon_cfgs = create_chanmon_cfgs(3);
768 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
769 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
770 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
772 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
773 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()).unwrap();
774 check_added_monitors!(nodes[1], 1);
776 // Use a segwit v0 script supported even without option_shutdown_anysegwit
777 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
778 node_0_shutdown.scriptpubkey = Builder::new().push_int(0)
779 .push_slice(&[0; 20])
781 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
783 let events = nodes[0].node.get_and_clear_pending_msg_events();
784 assert_eq!(events.len(), 2);
786 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
787 _ => panic!("Unexpected event"),
790 MessageSendEvent::SendClosingSigned { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
791 _ => panic!("Unexpected event"),
796 fn test_anysegwit_shutdown_script() {
797 let mut config = UserConfig::default();
798 config.channel_handshake_config.announced_channel = true;
799 config.channel_handshake_limits.force_announced_channel_preference = false;
800 config.channel_handshake_config.commit_upfront_shutdown_pubkey = false;
801 let user_cfgs = [None, Some(config), None];
802 let chanmon_cfgs = create_chanmon_cfgs(3);
803 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
804 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
805 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
807 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
808 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()).unwrap();
809 check_added_monitors!(nodes[1], 1);
811 // Use a non-v0 segwit script supported by option_shutdown_anysegwit
812 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
813 node_0_shutdown.scriptpubkey = Builder::new().push_int(16)
816 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
818 let events = nodes[0].node.get_and_clear_pending_msg_events();
819 assert_eq!(events.len(), 2);
821 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
822 _ => panic!("Unexpected event"),
825 MessageSendEvent::SendClosingSigned { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
826 _ => panic!("Unexpected event"),
831 fn test_unsupported_anysegwit_shutdown_script() {
832 let mut config = UserConfig::default();
833 config.channel_handshake_config.announced_channel = true;
834 config.channel_handshake_limits.force_announced_channel_preference = false;
835 config.channel_handshake_config.commit_upfront_shutdown_pubkey = false;
836 let user_cfgs = [None, Some(config), None];
837 let chanmon_cfgs = create_chanmon_cfgs(3);
838 let mut node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
839 *node_cfgs[0].override_init_features.borrow_mut() = Some(channelmanager::provided_init_features(&config).clear_shutdown_anysegwit());
840 *node_cfgs[1].override_init_features.borrow_mut() = Some(channelmanager::provided_init_features(&config).clear_shutdown_anysegwit());
841 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
842 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
844 // Check that using an unsupported shutdown script fails and a supported one succeeds.
845 let supported_shutdown_script = chanmon_cfgs[1].keys_manager.get_shutdown_scriptpubkey().unwrap();
846 let unsupported_shutdown_script =
847 ShutdownScript::new_witness_program(WitnessVersion::V16, &[0, 40]).unwrap();
848 chanmon_cfgs[1].keys_manager
849 .expect(OnGetShutdownScriptpubkey { returns: unsupported_shutdown_script.clone() })
850 .expect(OnGetShutdownScriptpubkey { returns: supported_shutdown_script });
852 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
853 match nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()) {
854 Err(APIError::IncompatibleShutdownScript { script }) => {
855 assert_eq!(script.into_inner(), unsupported_shutdown_script.clone().into_inner());
857 Err(e) => panic!("Unexpected error: {:?}", e),
858 Ok(_) => panic!("Expected error"),
860 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()).unwrap();
861 check_added_monitors!(nodes[1], 1);
863 // Use a non-v0 segwit script unsupported without option_shutdown_anysegwit
864 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
865 node_0_shutdown.scriptpubkey = unsupported_shutdown_script.into_inner();
866 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
868 assert_eq!(&check_warn_msg!(nodes[0], nodes[1].node.get_our_node_id(), chan.2),
869 "Got a nonstandard scriptpubkey (60020028) from remote peer");
873 fn test_invalid_shutdown_script() {
874 let mut config = UserConfig::default();
875 config.channel_handshake_config.announced_channel = true;
876 config.channel_handshake_limits.force_announced_channel_preference = false;
877 config.channel_handshake_config.commit_upfront_shutdown_pubkey = false;
878 let user_cfgs = [None, Some(config), None];
879 let chanmon_cfgs = create_chanmon_cfgs(3);
880 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
881 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
882 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
884 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
885 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id()).unwrap();
886 check_added_monitors!(nodes[1], 1);
888 // Use a segwit v0 script with an unsupported witness program
889 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
890 node_0_shutdown.scriptpubkey = Builder::new().push_int(0)
893 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
895 assert_eq!(&check_warn_msg!(nodes[0], nodes[1].node.get_our_node_id(), chan.2),
896 "Got a nonstandard scriptpubkey (00020000) from remote peer");
900 fn test_user_shutdown_script() {
901 let mut config = test_default_channel_config();
902 config.channel_handshake_config.announced_channel = true;
903 config.channel_handshake_limits.force_announced_channel_preference = false;
904 config.channel_handshake_config.commit_upfront_shutdown_pubkey = false;
905 let user_cfgs = [None, Some(config), None];
906 let chanmon_cfgs = create_chanmon_cfgs(3);
907 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
908 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
909 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
911 // Segwit v0 script of the form OP_0 <20-byte hash>
912 let script = Builder::new().push_int(0)
913 .push_slice(&[0; 20])
916 let shutdown_script = ShutdownScript::try_from(script.clone()).unwrap();
918 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
919 nodes[1].node.close_channel_with_feerate_and_script(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id(), None, Some(shutdown_script)).unwrap();
920 check_added_monitors!(nodes[1], 1);
922 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
924 assert_eq!(node_0_shutdown.scriptpubkey, script);
928 fn test_already_set_user_shutdown_script() {
929 let mut config = test_default_channel_config();
930 config.channel_handshake_config.announced_channel = true;
931 config.channel_handshake_limits.force_announced_channel_preference = false;
932 let user_cfgs = [None, Some(config), None];
933 let chanmon_cfgs = create_chanmon_cfgs(3);
934 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
935 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
936 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
938 // Segwit v0 script of the form OP_0 <20-byte hash>
939 let script = Builder::new().push_int(0)
940 .push_slice(&[0; 20])
943 let shutdown_script = ShutdownScript::try_from(script).unwrap();
945 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
946 let result = nodes[1].node.close_channel_with_feerate_and_script(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[0].node.get_our_node_id(), None, Some(shutdown_script));
948 assert_eq!(result, Err(APIError::APIMisuseError { err: "Cannot override shutdown script for a channel with one already set".to_string() }));
958 fn do_test_closing_signed_reinit_timeout(timeout_step: TimeoutStep) {
959 // The range-based closing signed negotiation allows the funder to restart the process with a
960 // new range if the previous range did not overlap. This allows implementations to request user
961 // intervention allowing users to enter a new fee range. We do not implement the sending side
962 // of this, instead opting to allow users to enter an explicit "willing to pay up to X to avoid
963 // force-closing" value and relying on that instead.
965 // Here we run test the fundee side of that restart mechanism, implementing the funder side of
967 let chanmon_cfgs = create_chanmon_cfgs(2);
968 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
969 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
970 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
971 let chan_id = create_announced_chan_between_nodes(&nodes, 0, 1).2;
973 send_payment(&nodes[0], &[&nodes[1]], 8_000_000);
975 nodes[0].node.close_channel(&chan_id, &nodes[1].node.get_our_node_id()).unwrap();
976 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
977 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
978 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
979 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
982 // Now we set nodes[1] to require a relatively high feerate for closing. This should result
983 // in it rejecting nodes[0]'s initial closing_signed, giving nodes[0] a chance to try
985 let mut feerate_lock = chanmon_cfgs[1].fee_estimator.sat_per_kw.lock().unwrap();
989 let mut node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
990 // nodes[0] should use a "reasonable" feerate, well under the 10 sat/vByte that nodes[1] thinks
991 // is the current prevailing feerate.
992 assert!(node_0_closing_signed.fee_satoshis <= 500);
994 if timeout_step != TimeoutStep::AfterShutdown {
995 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
996 assert!(check_warn_msg!(nodes[1], nodes[0].node.get_our_node_id(), chan_id)
997 .starts_with("Unable to come to consensus about closing feerate"));
999 // Now deliver a mutated closing_signed indicating a higher acceptable fee range, which
1000 // nodes[1] should happily accept and respond to.
1001 node_0_closing_signed.fee_range.as_mut().unwrap().max_fee_satoshis *= 10;
1003 let mut node_0_per_peer_lock;
1004 let mut node_0_peer_state_lock;
1005 get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_id).context.closing_fee_limits.as_mut().unwrap().1 *= 10;
1007 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
1008 let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id());
1009 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
1010 let node_0_2nd_closing_signed = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
1011 if timeout_step == TimeoutStep::NoTimeout {
1012 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed.1.unwrap());
1013 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
1015 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
1018 if timeout_step != TimeoutStep::NoTimeout {
1019 assert!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
1021 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
1024 nodes[1].node.timer_tick_occurred();
1025 nodes[1].node.timer_tick_occurred();
1027 let txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
1028 assert_eq!(txn.len(), 1);
1029 assert_eq!(txn[0].output.len(), 2);
1031 if timeout_step != TimeoutStep::NoTimeout {
1032 assert!((txn[0].output[0].script_pubkey.is_v0_p2wpkh() &&
1033 txn[0].output[1].script_pubkey.is_v0_p2wsh()) ||
1034 (txn[0].output[1].script_pubkey.is_v0_p2wpkh() &&
1035 txn[0].output[0].script_pubkey.is_v0_p2wsh()));
1036 check_closed_broadcast!(nodes[1], true);
1037 check_added_monitors!(nodes[1], 1);
1038 check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "closing_signed negotiation failed to finish within two timer ticks".to_string() }
1039 , [nodes[0].node.get_our_node_id()], 100000);
1041 assert!(txn[0].output[0].script_pubkey.is_v0_p2wpkh());
1042 assert!(txn[0].output[1].script_pubkey.is_v0_p2wpkh());
1044 let events = nodes[1].node.get_and_clear_pending_msg_events();
1045 assert_eq!(events.len(), 1);
1047 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1048 assert_eq!(msg.contents.flags & 2, 2);
1050 _ => panic!("Unexpected event"),
1056 fn test_closing_signed_reinit_timeout() {
1057 do_test_closing_signed_reinit_timeout(TimeoutStep::AfterShutdown);
1058 do_test_closing_signed_reinit_timeout(TimeoutStep::AfterClosingSigned);
1059 do_test_closing_signed_reinit_timeout(TimeoutStep::NoTimeout);
1062 fn do_simple_legacy_shutdown_test(high_initiator_fee: bool) {
1063 // A simpe test of the legacy shutdown fee negotiation logic.
1064 let chanmon_cfgs = create_chanmon_cfgs(2);
1065 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1066 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1067 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1069 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
1071 if high_initiator_fee {
1072 // If high_initiator_fee is set, set nodes[0]'s feerate significantly higher. This
1073 // shouldn't impact the flow at all given nodes[1] will happily accept the higher fee.
1074 let mut feerate_lock = chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap();
1075 *feerate_lock *= 10;
1078 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id(), &nodes[1].node.get_our_node_id()).unwrap();
1079 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
1080 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
1081 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
1082 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
1084 let mut node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
1085 node_0_closing_signed.fee_range = None;
1086 if high_initiator_fee {
1087 assert!(node_0_closing_signed.fee_satoshis > 500);
1089 assert!(node_0_closing_signed.fee_satoshis < 500);
1092 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
1093 let (_, mut node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
1094 node_1_closing_signed.as_mut().unwrap().fee_range = None;
1096 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap());
1097 let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
1098 assert!(node_0_none.is_none());
1099 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
1100 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
1104 fn simple_legacy_shutdown_test() {
1105 do_simple_legacy_shutdown_test(false);
1106 do_simple_legacy_shutdown_test(true);
1110 fn simple_target_feerate_shutdown() {
1111 // Simple test of target in `close_channel_with_target_feerate`.
1112 let chanmon_cfgs = create_chanmon_cfgs(2);
1113 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1114 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1115 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1117 let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
1118 let chan_id = OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id();
1120 nodes[0].node.close_channel_with_feerate_and_script(&chan_id, &nodes[1].node.get_our_node_id(), Some(253 * 10), None).unwrap();
1121 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
1122 nodes[1].node.close_channel_with_feerate_and_script(&chan_id, &nodes[0].node.get_our_node_id(), Some(253 * 5), None).unwrap();
1123 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
1125 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
1126 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
1128 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
1129 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
1130 let (_, node_1_closing_signed_opt) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
1131 let node_1_closing_signed = node_1_closing_signed_opt.unwrap();
1133 // nodes[1] was passed a target which was larger than the current channel feerate, which it
1134 // should ignore in favor of the channel fee, as there is no use demanding a minimum higher
1135 // than what will be paid on a force-close transaction. Note that we have to consider rounding,
1136 // so only check that we're within 10 sats.
1137 assert!(node_0_closing_signed.fee_range.as_ref().unwrap().min_fee_satoshis >=
1138 node_1_closing_signed.fee_range.as_ref().unwrap().min_fee_satoshis * 10 - 5);
1139 assert!(node_0_closing_signed.fee_range.as_ref().unwrap().min_fee_satoshis <=
1140 node_1_closing_signed.fee_range.as_ref().unwrap().min_fee_satoshis * 10 + 5);
1142 // Further, because nodes[0]'s target fee is larger than the `Normal` fee estimation plus our
1143 // force-closure-avoidance buffer, min should equal max, and the nodes[1]-selected fee should
1144 // be the nodes[0] only available fee.
1145 assert_eq!(node_0_closing_signed.fee_range.as_ref().unwrap().min_fee_satoshis,
1146 node_0_closing_signed.fee_range.as_ref().unwrap().max_fee_satoshis);
1147 assert_eq!(node_0_closing_signed.fee_range.as_ref().unwrap().min_fee_satoshis,
1148 node_0_closing_signed.fee_satoshis);
1149 assert_eq!(node_0_closing_signed.fee_satoshis, node_1_closing_signed.fee_satoshis);
1151 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed);
1152 let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
1153 assert!(node_0_none.is_none());
1154 check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
1155 check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);