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 that test ChannelManager behavior with fewer confirmations required than the default and
11 //! other behavior that exists only on private channels or with a semi-trusted counterparty (eg
15 use chain::channelmonitor::ChannelMonitor;
16 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, MIN_CLTV_EXPIRY_DELTA};
17 use routing::network_graph::RoutingFees;
18 use routing::router::{RouteHint, RouteHintHop};
19 use ln::features::InitFeatures;
21 use ln::msgs::{ChannelMessageHandler, RoutingMessageHandler};
22 use util::enforcing_trait_impls::EnforcingSigner;
23 use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
24 use util::config::UserConfig;
25 use util::ser::{Writeable, ReadableArgs};
29 use core::default::Default;
31 use ln::functional_test_utils::*;
33 use bitcoin::hash_types::BlockHash;
36 fn test_priv_forwarding_rejection() {
37 // If we have a private channel with outbound liquidity, and
38 // UserConfig::accept_forwards_to_priv_channels is set to false, we should reject any attempts
39 // to forward through that channel.
40 let chanmon_cfgs = create_chanmon_cfgs(3);
41 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
42 let mut no_announce_cfg = test_default_channel_config();
43 no_announce_cfg.accept_forwards_to_priv_channels = false;
44 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(no_announce_cfg), None]);
45 let persister: test_utils::TestPersister;
46 let new_chain_monitor: test_utils::TestChainMonitor;
47 let nodes_1_deserialized: ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
48 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
50 let chan_id_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).2;
51 let chan_id_2 = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).0.channel_id;
53 // We should always be able to forward through nodes[1] as long as its out through a public
55 send_payment(&nodes[2], &[&nodes[1], &nodes[0]], 10_000);
57 // ... however, if we send to nodes[2], we will have to pass the private channel from nodes[1]
58 // to nodes[2], which should be rejected:
59 let route_hint = RouteHint(vec![RouteHintHop {
60 src_node_id: nodes[1].node.get_our_node_id(),
61 short_channel_id: nodes[2].node.list_channels()[0].short_channel_id.unwrap(),
62 fees: RoutingFees { base_msat: 1000, proportional_millionths: 0 },
63 cltv_expiry_delta: MIN_CLTV_EXPIRY_DELTA,
64 htlc_minimum_msat: None,
65 htlc_maximum_msat: None,
67 let last_hops = vec![route_hint];
68 let (route, our_payment_hash, our_payment_preimage, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], last_hops, 10_000, TEST_FINAL_CLTV);
70 nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap();
71 check_added_monitors!(nodes[0], 1);
72 let payment_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
73 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
74 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false, true);
76 let htlc_fail_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
77 assert!(htlc_fail_updates.update_add_htlcs.is_empty());
78 assert_eq!(htlc_fail_updates.update_fail_htlcs.len(), 1);
79 assert!(htlc_fail_updates.update_fail_malformed_htlcs.is_empty());
80 assert!(htlc_fail_updates.update_fee.is_none());
82 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &htlc_fail_updates.update_fail_htlcs[0]);
83 commitment_signed_dance!(nodes[0], nodes[1], htlc_fail_updates.commitment_signed, true, true);
84 expect_payment_failed_with_update!(nodes[0], our_payment_hash, false, nodes[2].node.list_channels()[0].short_channel_id.unwrap(), true);
86 // Now disconnect nodes[1] from its peers and restart with accept_forwards_to_priv_channels set
87 // to true. Sadly there is currently no way to change it at runtime.
89 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
90 nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
92 let nodes_1_serialized = nodes[1].node.encode();
93 let mut monitor_a_serialized = test_utils::TestVecWriter(Vec::new());
94 let mut monitor_b_serialized = test_utils::TestVecWriter(Vec::new());
95 get_monitor!(nodes[1], chan_id_1).write(&mut monitor_a_serialized).unwrap();
96 get_monitor!(nodes[1], chan_id_2).write(&mut monitor_b_serialized).unwrap();
98 persister = test_utils::TestPersister::new();
99 let keys_manager = &chanmon_cfgs[1].keys_manager;
100 new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[1].chain_source), nodes[1].tx_broadcaster.clone(), nodes[1].logger, node_cfgs[1].fee_estimator, &persister, keys_manager);
101 nodes[1].chain_monitor = &new_chain_monitor;
103 let mut monitor_a_read = &monitor_a_serialized.0[..];
104 let mut monitor_b_read = &monitor_b_serialized.0[..];
105 let (_, mut monitor_a) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(&mut monitor_a_read, keys_manager).unwrap();
106 let (_, mut monitor_b) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(&mut monitor_b_read, keys_manager).unwrap();
107 assert!(monitor_a_read.is_empty());
108 assert!(monitor_b_read.is_empty());
110 no_announce_cfg.accept_forwards_to_priv_channels = true;
112 let mut nodes_1_read = &nodes_1_serialized[..];
113 let (_, nodes_1_deserialized_tmp) = {
114 let mut channel_monitors = HashMap::new();
115 channel_monitors.insert(monitor_a.get_funding_txo().0, &mut monitor_a);
116 channel_monitors.insert(monitor_b.get_funding_txo().0, &mut monitor_b);
117 <(BlockHash, ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_1_read, ChannelManagerReadArgs {
118 default_config: no_announce_cfg,
120 fee_estimator: node_cfgs[1].fee_estimator,
121 chain_monitor: nodes[1].chain_monitor,
122 tx_broadcaster: nodes[1].tx_broadcaster.clone(),
123 logger: nodes[1].logger,
127 assert!(nodes_1_read.is_empty());
128 nodes_1_deserialized = nodes_1_deserialized_tmp;
130 assert!(nodes[1].chain_monitor.watch_channel(monitor_a.get_funding_txo().0, monitor_a).is_ok());
131 assert!(nodes[1].chain_monitor.watch_channel(monitor_b.get_funding_txo().0, monitor_b).is_ok());
132 check_added_monitors!(nodes[1], 2);
133 nodes[1].node = &nodes_1_deserialized;
135 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::known() });
136 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
137 let as_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
138 let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
139 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &as_reestablish);
140 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
141 get_event_msg!(nodes[0], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
142 get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[0].node.get_our_node_id());
144 nodes[1].node.peer_connected(&nodes[2].node.get_our_node_id(), &msgs::Init { features: InitFeatures::known() });
145 nodes[2].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
146 let bs_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[2].node.get_our_node_id());
147 let cs_reestablish = get_event_msg!(nodes[2], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
148 nodes[2].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
149 nodes[1].node.handle_channel_reestablish(&nodes[2].node.get_our_node_id(), &cs_reestablish);
150 get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[2].node.get_our_node_id());
151 get_event_msg!(nodes[2], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
153 nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap();
154 check_added_monitors!(nodes[0], 1);
155 pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], 10_000, our_payment_hash, our_payment_secret);
156 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], our_payment_preimage);
159 fn do_test_1_conf_open(connect_style: ConnectStyle) {
160 // Previously, if the minium_depth config was set to 1, we'd never send a funding_locked. This
161 // tests that we properly send one in that case.
162 let mut alice_config = UserConfig::default();
163 alice_config.own_channel_config.minimum_depth = 1;
164 alice_config.channel_options.announced_channel = true;
165 alice_config.peer_channel_config_limits.force_announced_channel_preference = false;
166 let mut bob_config = UserConfig::default();
167 bob_config.own_channel_config.minimum_depth = 1;
168 bob_config.channel_options.announced_channel = true;
169 bob_config.peer_channel_config_limits.force_announced_channel_preference = false;
170 let chanmon_cfgs = create_chanmon_cfgs(2);
171 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
172 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(alice_config), Some(bob_config)]);
173 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
174 *nodes[0].connect_style.borrow_mut() = connect_style;
176 let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known());
177 mine_transaction(&nodes[1], &tx);
178 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()));
179 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
181 mine_transaction(&nodes[0], &tx);
182 let as_msg_events = nodes[0].node.get_and_clear_pending_msg_events();
183 assert_eq!(as_msg_events.len(), 2);
184 let as_funding_locked = if let MessageSendEvent::SendFundingLocked { ref node_id, ref msg } = as_msg_events[0] {
185 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
187 } else { panic!("Unexpected event"); };
188 if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = as_msg_events[1] {
189 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
190 } else { panic!("Unexpected event"); }
192 nodes[1].node.handle_funding_locked(&nodes[0].node.get_our_node_id(), &as_funding_locked);
193 let bs_msg_events = nodes[1].node.get_and_clear_pending_msg_events();
194 assert_eq!(bs_msg_events.len(), 1);
195 if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = bs_msg_events[0] {
196 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
197 } else { panic!("Unexpected event"); }
199 send_payment(&nodes[0], &[&nodes[1]], 100_000);
201 // After 6 confirmations, as required by the spec, we'll send announcement_signatures and
202 // broadcast the channel_announcement (but not before exactly 6 confirmations).
203 connect_blocks(&nodes[0], 4);
204 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
205 connect_blocks(&nodes[0], 1);
206 nodes[1].node.handle_announcement_signatures(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendAnnouncementSignatures, nodes[1].node.get_our_node_id()));
207 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
209 connect_blocks(&nodes[1], 5);
210 let bs_announce_events = nodes[1].node.get_and_clear_pending_msg_events();
211 assert_eq!(bs_announce_events.len(), 2);
212 let bs_announcement_sigs = if let MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } = bs_announce_events[0] {
213 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
215 } else { panic!("Unexpected event"); };
216 let (bs_announcement, bs_update) = if let MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } = bs_announce_events[1] {
217 (msg.clone(), update_msg.clone())
218 } else { panic!("Unexpected event"); };
220 nodes[0].node.handle_announcement_signatures(&nodes[1].node.get_our_node_id(), &bs_announcement_sigs);
221 let as_announce_events = nodes[0].node.get_and_clear_pending_msg_events();
222 assert_eq!(as_announce_events.len(), 1);
223 let (announcement, as_update) = if let MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } = as_announce_events[0] {
224 (msg.clone(), update_msg.clone())
225 } else { panic!("Unexpected event"); };
226 assert_eq!(announcement, bs_announcement);
229 assert!(node.net_graph_msg_handler.handle_channel_announcement(&announcement).unwrap());
230 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
231 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
235 fn test_1_conf_open() {
236 do_test_1_conf_open(ConnectStyle::BestBlockFirst);
237 do_test_1_conf_open(ConnectStyle::TransactionsFirst);
238 do_test_1_conf_open(ConnectStyle::FullBlockViaListen);
242 fn test_routed_scid_alias() {
243 // Trivially test sending a payment which is routed through an SCID alias.
244 let chanmon_cfgs = create_chanmon_cfgs(3);
245 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
246 let mut no_announce_cfg = test_default_channel_config();
247 no_announce_cfg.accept_forwards_to_priv_channels = true;
248 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(no_announce_cfg), None]);
249 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
251 create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).2;
252 let mut as_funding_locked = create_unannounced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known()).0;
254 let last_hop = nodes[2].node.list_usable_channels();
255 let hop_hints = vec![RouteHint(vec![RouteHintHop {
256 src_node_id: nodes[1].node.get_our_node_id(),
257 short_channel_id: last_hop[0].inbound_scid_alias.unwrap(),
259 base_msat: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().fee_base_msat,
260 proportional_millionths: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().fee_proportional_millionths,
262 cltv_expiry_delta: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().cltv_expiry_delta,
263 htlc_maximum_msat: None,
264 htlc_minimum_msat: None,
266 let (route, payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], hop_hints, 100_000, 42);
267 assert_eq!(route.paths[0][1].short_channel_id, last_hop[0].inbound_scid_alias.unwrap());
268 nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap();
269 check_added_monitors!(nodes[0], 1);
271 pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], 100_000, payment_hash, payment_secret);
272 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
274 // Now test that if a peer sends us a second funding_locked after the channel is operational we
275 // will use the new alias.
276 as_funding_locked.short_channel_id_alias = Some(0xdeadbeef);
277 nodes[2].node.handle_funding_locked(&nodes[1].node.get_our_node_id(), &as_funding_locked);
278 // Note that we always respond to a funding_locked with a channel_update. Not a lot of reason
279 // to bother updating that code, so just drop the message here.
280 get_event_msg!(nodes[2], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
281 let updated_channel_info = nodes[2].node.list_usable_channels();
282 assert_eq!(updated_channel_info.len(), 1);
283 assert_eq!(updated_channel_info[0].inbound_scid_alias.unwrap(), 0xdeadbeef);
284 // Note that because we never send a duplicate funding_locked we can't send a payment through
285 // the 0xdeadbeef SCID alias.
289 fn test_scid_privacy_on_pub_channel() {
290 // Tests rejecting the scid_privacy feature for public channels and that we don't ever try to
292 let chanmon_cfgs = create_chanmon_cfgs(2);
293 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
294 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
295 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
297 let mut scid_privacy_cfg = test_default_channel_config();
298 scid_privacy_cfg.channel_options.announced_channel = true;
299 scid_privacy_cfg.own_channel_config.negotiate_scid_privacy = true;
300 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(scid_privacy_cfg)).unwrap();
301 let mut open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
303 assert!(!open_channel.channel_type.as_ref().unwrap().supports_scid_privacy()); // we ignore `negotiate_scid_privacy` on pub channels
304 open_channel.channel_type.as_mut().unwrap().set_scid_privacy_required();
305 assert_eq!(open_channel.channel_flags & 1, 1); // The `announce_channel` bit is set.
307 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &open_channel);
308 let err = get_err_msg!(nodes[1], nodes[0].node.get_our_node_id());
309 assert_eq!(err.data, "SCID Alias/Privacy Channel Type cannot be set on a public channel");
313 fn test_scid_privacy_negotiation() {
314 // Tests of the negotiation of SCID alias and falling back to non-SCID-alias if our
315 // counterparty doesn't support it.
316 let chanmon_cfgs = create_chanmon_cfgs(2);
317 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
318 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
319 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
321 let mut scid_privacy_cfg = test_default_channel_config();
322 scid_privacy_cfg.channel_options.announced_channel = false;
323 scid_privacy_cfg.own_channel_config.negotiate_scid_privacy = true;
324 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(scid_privacy_cfg)).unwrap();
326 let init_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
327 assert!(init_open_channel.channel_type.as_ref().unwrap().supports_scid_privacy());
328 assert!(nodes[0].node.list_channels()[0].channel_type.is_none()); // channel_type is none until counterparty accepts
330 // now simulate nodes[1] responding with an Error message, indicating it doesn't understand
332 nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msgs::ErrorMessage {
333 channel_id: init_open_channel.temporary_channel_id,
334 data: "Yo, no SCID aliases, no privacy here!".to_string()
336 assert!(nodes[0].node.list_channels()[0].channel_type.is_none()); // channel_type is none until counterparty accepts
338 let second_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
339 assert!(!second_open_channel.channel_type.as_ref().unwrap().supports_scid_privacy());
340 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &second_open_channel);
341 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()));
343 let events = nodes[0].node.get_and_clear_pending_events();
344 assert_eq!(events.len(), 1);
346 Event::FundingGenerationReady { .. } => {},
347 _ => panic!("Unexpected event"),
350 assert!(!nodes[0].node.list_channels()[0].channel_type.as_ref().unwrap().supports_scid_privacy());
351 assert!(!nodes[1].node.list_channels()[0].channel_type.as_ref().unwrap().supports_scid_privacy());
355 fn test_inbound_scid_privacy() {
356 // Tests accepting channels with the scid_privacy feature and rejecting forwards using the
357 // channel's real SCID as required by the channel feature.
358 let chanmon_cfgs = create_chanmon_cfgs(3);
359 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
360 let mut accept_forward_cfg = test_default_channel_config();
361 accept_forward_cfg.accept_forwards_to_priv_channels = true;
362 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(accept_forward_cfg), None]);
363 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
365 create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0, InitFeatures::known(), InitFeatures::known());
367 let mut no_announce_cfg = test_default_channel_config();
368 no_announce_cfg.channel_options.announced_channel = false;
369 no_announce_cfg.own_channel_config.negotiate_scid_privacy = true;
370 nodes[1].node.create_channel(nodes[2].node.get_our_node_id(), 100_000, 10_000, 42, Some(no_announce_cfg)).unwrap();
371 let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[2].node.get_our_node_id());
373 assert!(open_channel.channel_type.as_ref().unwrap().requires_scid_privacy());
375 nodes[2].node.handle_open_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &open_channel);
376 let accept_channel = get_event_msg!(nodes[2], MessageSendEvent::SendAcceptChannel, nodes[1].node.get_our_node_id());
377 nodes[1].node.handle_accept_channel(&nodes[2].node.get_our_node_id(), InitFeatures::known(), &accept_channel);
379 let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[1], 100_000, 42);
380 nodes[1].node.funding_transaction_generated(&temporary_channel_id, tx.clone()).unwrap();
381 nodes[2].node.handle_funding_created(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendFundingCreated, nodes[2].node.get_our_node_id()));
382 check_added_monitors!(nodes[2], 1);
384 let cs_funding_signed = get_event_msg!(nodes[2], MessageSendEvent::SendFundingSigned, nodes[1].node.get_our_node_id());
385 nodes[1].node.handle_funding_signed(&nodes[2].node.get_our_node_id(), &cs_funding_signed);
386 check_added_monitors!(nodes[1], 1);
388 let conf_height = core::cmp::max(nodes[1].best_block_info().1 + 1, nodes[2].best_block_info().1 + 1);
389 confirm_transaction_at(&nodes[1], &tx, conf_height);
390 connect_blocks(&nodes[1], CHAN_CONFIRM_DEPTH - 1);
391 confirm_transaction_at(&nodes[2], &tx, conf_height);
392 connect_blocks(&nodes[2], CHAN_CONFIRM_DEPTH - 1);
393 let bs_funding_locked = get_event_msg!(nodes[1], MessageSendEvent::SendFundingLocked, nodes[2].node.get_our_node_id());
394 nodes[1].node.handle_funding_locked(&nodes[2].node.get_our_node_id(), &get_event_msg!(nodes[2], MessageSendEvent::SendFundingLocked, nodes[1].node.get_our_node_id()));
395 let bs_update = get_event_msg!(nodes[1], MessageSendEvent::SendChannelUpdate, nodes[2].node.get_our_node_id());
396 nodes[2].node.handle_funding_locked(&nodes[1].node.get_our_node_id(), &bs_funding_locked);
397 let cs_update = get_event_msg!(nodes[2], MessageSendEvent::SendChannelUpdate, nodes[1].node.get_our_node_id());
399 nodes[1].node.handle_channel_update(&nodes[2].node.get_our_node_id(), &cs_update);
400 nodes[2].node.handle_channel_update(&nodes[1].node.get_our_node_id(), &bs_update);
402 // Now we can pay just fine using the SCID alias nodes[2] gave to nodes[1]...
404 let last_hop = nodes[2].node.list_usable_channels();
405 let mut hop_hints = vec![RouteHint(vec![RouteHintHop {
406 src_node_id: nodes[1].node.get_our_node_id(),
407 short_channel_id: last_hop[0].inbound_scid_alias.unwrap(),
409 base_msat: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().fee_base_msat,
410 proportional_millionths: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().fee_proportional_millionths,
412 cltv_expiry_delta: last_hop[0].counterparty.forwarding_info.as_ref().unwrap().cltv_expiry_delta,
413 htlc_maximum_msat: None,
414 htlc_minimum_msat: None,
416 let (route, payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], hop_hints.clone(), 100_000, 42);
417 assert_eq!(route.paths[0][1].short_channel_id, last_hop[0].inbound_scid_alias.unwrap());
418 nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap();
419 check_added_monitors!(nodes[0], 1);
421 pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], 100_000, payment_hash, payment_secret);
422 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
424 // ... but if we try to pay using the real SCID, nodes[1] will just tell us they don't know
425 // what channel we're talking about.
426 hop_hints[0].0[0].short_channel_id = last_hop[0].short_channel_id.unwrap();
428 let (route_2, payment_hash_2, _, payment_secret_2) = get_route_and_payment_hash!(nodes[0], nodes[2], hop_hints, 100_000, 42);
429 assert_eq!(route_2.paths[0][1].short_channel_id, last_hop[0].short_channel_id.unwrap());
430 nodes[0].node.send_payment(&route_2, payment_hash_2, &Some(payment_secret_2)).unwrap();
431 check_added_monitors!(nodes[0], 1);
433 let payment_event = SendEvent::from_node(&nodes[0]);
434 assert_eq!(nodes[1].node.get_our_node_id(), payment_event.node_id);
435 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
436 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, true, true);
438 nodes[1].logger.assert_log_regex("lightning::ln::channelmanager".to_string(), regex::Regex::new(r"Refusing to forward over real channel SCID as our counterparty requested").unwrap(), 1);
440 let mut updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
441 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
442 commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false);
444 expect_payment_failed_conditions!(nodes[0], payment_hash_2, false,
445 PaymentFailedConditions::new().blamed_scid(last_hop[0].short_channel_id.unwrap())
446 .blamed_chan_closed(true).expected_htlc_error_data(0x4000|10, &[0; 0]));