1 //! Tests that test standing up a network of ChannelManagers, creating channels, sending
2 //! payments/messages between them, and often checking the resulting ChannelMonitors are able to
3 //! claim outputs on-chain.
5 use chain::transaction::OutPoint;
6 use chain::keysinterface::{ChannelKeys, KeysInterface, SpendableOutputDescriptor};
7 use chain::chaininterface;
8 use chain::chaininterface::{ChainListener, ChainWatchInterfaceUtil, BlockNotifier};
9 use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC};
10 use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,HTLCForwardInfo,RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure, BREAKDOWN_TIMEOUT};
11 use ln::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ManyChannelMonitor, ANTI_REORG_DELAY};
12 use ln::channelmonitor;
13 use ln::channel::{Channel, ChannelError};
14 use ln::{chan_utils, onion_utils};
15 use routing::router::{Route, RouteHop, get_route};
16 use ln::features::{ChannelFeatures, InitFeatures, NodeFeatures};
18 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler,HTLCFailChannelUpdate, ErrorAction, OptionalField};
19 use util::enforcing_trait_impls::EnforcingChannelKeys;
20 use util::{byte_utils, test_utils};
21 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
22 use util::errors::APIError;
23 use util::ser::{Writeable, Writer, ReadableArgs, Readable};
24 use util::config::UserConfig;
26 use bitcoin::util::hash::BitcoinHash;
27 use bitcoin::hashes::sha256d::Hash as Sha256dHash;
28 use bitcoin::hashes::HashEngine;
29 use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
30 use bitcoin::util::bip143;
31 use bitcoin::util::address::Address;
32 use bitcoin::util::bip32::{ChildNumber, ExtendedPubKey, ExtendedPrivKey};
33 use bitcoin::blockdata::block::{Block, BlockHeader};
34 use bitcoin::blockdata::transaction::{Transaction, TxOut, TxIn, SigHashType, OutPoint as BitcoinOutPoint};
35 use bitcoin::blockdata::script::{Builder, Script};
36 use bitcoin::blockdata::opcodes;
37 use bitcoin::blockdata::constants::genesis_block;
38 use bitcoin::network::constants::Network;
40 use bitcoin::hashes::sha256::Hash as Sha256;
41 use bitcoin::hashes::Hash;
43 use bitcoin::secp256k1::{Secp256k1, Message};
44 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
48 use std::collections::{BTreeSet, HashMap, HashSet};
49 use std::default::Default;
50 use std::sync::{Arc, Mutex};
51 use std::sync::atomic::Ordering;
54 use ln::functional_test_utils::*;
57 fn test_insane_channel_opens() {
58 // Stand up a network of 2 nodes
59 let chanmon_cfgs = create_chanmon_cfgs(2);
60 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
61 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
62 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
64 // Instantiate channel parameters where we push the maximum msats given our
66 let channel_value_sat = 31337; // same as funding satoshis
67 let channel_reserve_satoshis = Channel::<EnforcingChannelKeys>::get_remote_channel_reserve_satoshis(channel_value_sat);
68 let push_msat = (channel_value_sat - channel_reserve_satoshis) * 1000;
70 // Have node0 initiate a channel to node1 with aforementioned parameters
71 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_sat, push_msat, 42, None).unwrap();
73 // Extract the channel open message from node0 to node1
74 let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
76 // Test helper that asserts we get the correct error string given a mutator
77 // that supposedly makes the channel open message insane
78 let insane_open_helper = |expected_error_str: &str, message_mutator: fn(msgs::OpenChannel) -> msgs::OpenChannel| {
79 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &message_mutator(open_channel_message.clone()));
80 let msg_events = nodes[1].node.get_and_clear_pending_msg_events();
81 assert_eq!(msg_events.len(), 1);
82 let expected_regex = regex::Regex::new(expected_error_str).unwrap();
83 if let MessageSendEvent::HandleError { ref action, .. } = msg_events[0] {
85 &ErrorAction::SendErrorMessage { .. } => {
86 nodes[1].logger.assert_log_regex("lightning::ln::channelmanager".to_string(), expected_regex, 1);
88 _ => panic!("unexpected event!"),
90 } else { assert!(false); }
93 use ln::channel::MAX_FUNDING_SATOSHIS;
94 use ln::channelmanager::MAX_LOCAL_BREAKDOWN_TIMEOUT;
96 // Test all mutations that would make the channel open message insane
97 insane_open_helper(format!("Funding must be smaller than {}. It was {}", MAX_FUNDING_SATOSHIS, MAX_FUNDING_SATOSHIS).as_str(), |mut msg| { msg.funding_satoshis = MAX_FUNDING_SATOSHIS; msg });
99 insane_open_helper("Bogus channel_reserve_satoshis", |mut msg| { msg.channel_reserve_satoshis = msg.funding_satoshis + 1; msg });
101 insane_open_helper(r"push_msat \d+ was larger than funding value \d+", |mut msg| { msg.push_msat = (msg.funding_satoshis - msg.channel_reserve_satoshis) * 1000 + 1; msg });
103 insane_open_helper("Peer never wants payout outputs?", |mut msg| { msg.dust_limit_satoshis = msg.funding_satoshis + 1 ; msg });
105 insane_open_helper(r"Bogus; channel reserve \(\d+\) is less than dust limit \(\d+\)", |mut msg| { msg.dust_limit_satoshis = msg.channel_reserve_satoshis + 1; msg });
107 insane_open_helper(r"Minimum htlc value \(\d+\) was larger than full channel value \(\d+\)", |mut msg| { msg.htlc_minimum_msat = (msg.funding_satoshis - msg.channel_reserve_satoshis) * 1000; msg });
109 insane_open_helper("They wanted our payments to be delayed by a needlessly long period", |mut msg| { msg.to_self_delay = MAX_LOCAL_BREAKDOWN_TIMEOUT + 1; msg });
111 insane_open_helper("0 max_accepted_htlcs makes for a useless channel", |mut msg| { msg.max_accepted_htlcs = 0; msg });
113 insane_open_helper("max_accepted_htlcs was 484. It must not be larger than 483", |mut msg| { msg.max_accepted_htlcs = 484; msg });
117 fn test_async_inbound_update_fee() {
118 let chanmon_cfgs = create_chanmon_cfgs(2);
119 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
120 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
121 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
122 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
123 let logger = test_utils::TestLogger::new();
124 let channel_id = chan.2;
127 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
131 // send (1) commitment_signed -.
132 // <- update_add_htlc/commitment_signed
133 // send (2) RAA (awaiting remote revoke) -.
134 // (1) commitment_signed is delivered ->
135 // .- send (3) RAA (awaiting remote revoke)
136 // (2) RAA is delivered ->
137 // .- send (4) commitment_signed
138 // <- (3) RAA is delivered
139 // send (5) commitment_signed -.
140 // <- (4) commitment_signed is delivered
142 // (5) commitment_signed is delivered ->
144 // (6) RAA is delivered ->
146 // First nodes[0] generates an update_fee
147 nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap();
148 check_added_monitors!(nodes[0], 1);
150 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
151 assert_eq!(events_0.len(), 1);
152 let (update_msg, commitment_signed) = match events_0[0] { // (1)
153 MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => {
154 (update_fee.as_ref(), commitment_signed)
156 _ => panic!("Unexpected event"),
159 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap());
161 // ...but before it's delivered, nodes[1] starts to send a payment back to nodes[0]...
162 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
163 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
164 nodes[1].node.send_payment(&get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV, &logger).unwrap(), our_payment_hash, &None).unwrap();
165 check_added_monitors!(nodes[1], 1);
167 let payment_event = {
168 let mut events_1 = nodes[1].node.get_and_clear_pending_msg_events();
169 assert_eq!(events_1.len(), 1);
170 SendEvent::from_event(events_1.remove(0))
172 assert_eq!(payment_event.node_id, nodes[0].node.get_our_node_id());
173 assert_eq!(payment_event.msgs.len(), 1);
175 // ...now when the messages get delivered everyone should be happy
176 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
177 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event.commitment_msg); // (2)
178 let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
179 // nodes[0] is awaiting nodes[1] revoke_and_ack so get_event_msg's assert(len == 1) passes
180 check_added_monitors!(nodes[0], 1);
182 // deliver(1), generate (3):
183 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed);
184 let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
185 // nodes[1] is awaiting nodes[0] revoke_and_ack so get_event_msg's assert(len == 1) passes
186 check_added_monitors!(nodes[1], 1);
188 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack); // deliver (2)
189 let bs_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
190 assert!(bs_update.update_add_htlcs.is_empty()); // (4)
191 assert!(bs_update.update_fulfill_htlcs.is_empty()); // (4)
192 assert!(bs_update.update_fail_htlcs.is_empty()); // (4)
193 assert!(bs_update.update_fail_malformed_htlcs.is_empty()); // (4)
194 assert!(bs_update.update_fee.is_none()); // (4)
195 check_added_monitors!(nodes[1], 1);
197 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack); // deliver (3)
198 let as_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
199 assert!(as_update.update_add_htlcs.is_empty()); // (5)
200 assert!(as_update.update_fulfill_htlcs.is_empty()); // (5)
201 assert!(as_update.update_fail_htlcs.is_empty()); // (5)
202 assert!(as_update.update_fail_malformed_htlcs.is_empty()); // (5)
203 assert!(as_update.update_fee.is_none()); // (5)
204 check_added_monitors!(nodes[0], 1);
206 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_update.commitment_signed); // deliver (4)
207 let as_second_revoke = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
208 // only (6) so get_event_msg's assert(len == 1) passes
209 check_added_monitors!(nodes[0], 1);
211 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_update.commitment_signed); // deliver (5)
212 let bs_second_revoke = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
213 check_added_monitors!(nodes[1], 1);
215 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke);
216 check_added_monitors!(nodes[0], 1);
218 let events_2 = nodes[0].node.get_and_clear_pending_events();
219 assert_eq!(events_2.len(), 1);
221 Event::PendingHTLCsForwardable {..} => {}, // If we actually processed we'd receive the payment
222 _ => panic!("Unexpected event"),
225 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_revoke); // deliver (6)
226 check_added_monitors!(nodes[1], 1);
230 fn test_update_fee_unordered_raa() {
231 // Just the intro to the previous test followed by an out-of-order RAA (which caused a
232 // crash in an earlier version of the update_fee patch)
233 let chanmon_cfgs = create_chanmon_cfgs(2);
234 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
235 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
236 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
237 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
238 let channel_id = chan.2;
239 let logger = test_utils::TestLogger::new();
242 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
244 // First nodes[0] generates an update_fee
245 nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap();
246 check_added_monitors!(nodes[0], 1);
248 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
249 assert_eq!(events_0.len(), 1);
250 let update_msg = match events_0[0] { // (1)
251 MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, .. }, .. } => {
254 _ => panic!("Unexpected event"),
257 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap());
259 // ...but before it's delivered, nodes[1] starts to send a payment back to nodes[0]...
260 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
261 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
262 nodes[1].node.send_payment(&get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV, &logger).unwrap(), our_payment_hash, &None).unwrap();
263 check_added_monitors!(nodes[1], 1);
265 let payment_event = {
266 let mut events_1 = nodes[1].node.get_and_clear_pending_msg_events();
267 assert_eq!(events_1.len(), 1);
268 SendEvent::from_event(events_1.remove(0))
270 assert_eq!(payment_event.node_id, nodes[0].node.get_our_node_id());
271 assert_eq!(payment_event.msgs.len(), 1);
273 // ...now when the messages get delivered everyone should be happy
274 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
275 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event.commitment_msg); // (2)
276 let as_revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
277 // nodes[0] is awaiting nodes[1] revoke_and_ack so get_event_msg's assert(len == 1) passes
278 check_added_monitors!(nodes[0], 1);
280 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_msg); // deliver (2)
281 check_added_monitors!(nodes[1], 1);
283 // We can't continue, sadly, because our (1) now has a bogus signature
287 fn test_multi_flight_update_fee() {
288 let chanmon_cfgs = create_chanmon_cfgs(2);
289 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
290 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
291 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
292 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
293 let channel_id = chan.2;
296 // update_fee/commitment_signed ->
297 // .- send (1) RAA and (2) commitment_signed
298 // update_fee (never committed) ->
300 // We have to manually generate the above update_fee, it is allowed by the protocol but we
301 // don't track which updates correspond to which revoke_and_ack responses so we're in
302 // AwaitingRAA mode and will not generate the update_fee yet.
303 // <- (1) RAA delivered
304 // (3) is generated and send (4) CS -.
305 // Note that A cannot generate (4) prior to (1) being delivered as it otherwise doesn't
306 // know the per_commitment_point to use for it.
307 // <- (2) commitment_signed delivered
309 // B should send no response here
310 // (4) commitment_signed delivered ->
311 // <- RAA/commitment_signed delivered
314 // First nodes[0] generates an update_fee
315 let initial_feerate = get_feerate!(nodes[0], channel_id);
316 nodes[0].node.update_fee(channel_id, initial_feerate + 20).unwrap();
317 check_added_monitors!(nodes[0], 1);
319 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
320 assert_eq!(events_0.len(), 1);
321 let (update_msg_1, commitment_signed_1) = match events_0[0] { // (1)
322 MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => {
323 (update_fee.as_ref().unwrap(), commitment_signed)
325 _ => panic!("Unexpected event"),
328 // Deliver first update_fee/commitment_signed pair, generating (1) and (2):
329 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg_1);
330 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed_1);
331 let (bs_revoke_msg, bs_commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
332 check_added_monitors!(nodes[1], 1);
334 // nodes[0] is awaiting a revoke from nodes[1] before it will create a new commitment
336 nodes[0].node.update_fee(channel_id, initial_feerate + 40).unwrap();
337 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
338 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
340 // Create the (3) update_fee message that nodes[0] will generate before it does...
341 let mut update_msg_2 = msgs::UpdateFee {
342 channel_id: update_msg_1.channel_id.clone(),
343 feerate_per_kw: (initial_feerate + 30) as u32,
346 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg_2);
348 update_msg_2.feerate_per_kw = (initial_feerate + 40) as u32;
350 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg_2);
352 // Deliver (1), generating (3) and (4)
353 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_msg);
354 let as_second_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
355 check_added_monitors!(nodes[0], 1);
356 assert!(as_second_update.update_add_htlcs.is_empty());
357 assert!(as_second_update.update_fulfill_htlcs.is_empty());
358 assert!(as_second_update.update_fail_htlcs.is_empty());
359 assert!(as_second_update.update_fail_malformed_htlcs.is_empty());
360 // Check that the update_fee newly generated matches what we delivered:
361 assert_eq!(as_second_update.update_fee.as_ref().unwrap().channel_id, update_msg_2.channel_id);
362 assert_eq!(as_second_update.update_fee.as_ref().unwrap().feerate_per_kw, update_msg_2.feerate_per_kw);
364 // Deliver (2) commitment_signed
365 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_commitment_signed);
366 let as_revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
367 check_added_monitors!(nodes[0], 1);
368 // No commitment_signed so get_event_msg's assert(len == 1) passes
370 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_msg);
371 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
372 check_added_monitors!(nodes[1], 1);
375 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_second_update.commitment_signed);
376 let (bs_second_revoke, bs_second_commitment) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
377 check_added_monitors!(nodes[1], 1);
379 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke);
380 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
381 check_added_monitors!(nodes[0], 1);
383 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment);
384 let as_second_revoke = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
385 // No commitment_signed so get_event_msg's assert(len == 1) passes
386 check_added_monitors!(nodes[0], 1);
388 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_revoke);
389 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
390 check_added_monitors!(nodes[1], 1);
394 fn test_1_conf_open() {
395 // Previously, if the minium_depth config was set to 1, we'd never send a funding_locked. This
396 // tests that we properly send one in that case.
397 let mut alice_config = UserConfig::default();
398 alice_config.own_channel_config.minimum_depth = 1;
399 alice_config.channel_options.announced_channel = true;
400 alice_config.peer_channel_config_limits.force_announced_channel_preference = false;
401 let mut bob_config = UserConfig::default();
402 bob_config.own_channel_config.minimum_depth = 1;
403 bob_config.channel_options.announced_channel = true;
404 bob_config.peer_channel_config_limits.force_announced_channel_preference = false;
405 let chanmon_cfgs = create_chanmon_cfgs(2);
406 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
407 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(alice_config), Some(bob_config)]);
408 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
410 let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known());
411 assert!(nodes[0].chain_monitor.does_match_tx(&tx));
412 assert!(nodes[1].chain_monitor.does_match_tx(&tx));
414 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
415 nodes[1].block_notifier.block_connected_checked(&header, 1, &[&tx; 1], &[tx.version as usize; 1]);
416 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()));
418 nodes[0].block_notifier.block_connected_checked(&header, 1, &[&tx; 1], &[tx.version as usize; 1]);
419 let (funding_locked, _) = create_chan_between_nodes_with_value_confirm_second(&nodes[1], &nodes[0]);
420 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_locked);
423 assert!(node.net_graph_msg_handler.handle_channel_announcement(&announcement).unwrap());
424 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
425 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
429 fn do_test_sanity_on_in_flight_opens(steps: u8) {
430 // Previously, we had issues deserializing channels when we hadn't connected the first block
431 // after creation. To catch that and similar issues, we lean on the Node::drop impl to test
432 // serialization round-trips and simply do steps towards opening a channel and then drop the
435 let chanmon_cfgs = create_chanmon_cfgs(2);
436 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
437 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
438 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
440 if steps & 0b1000_0000 != 0{
441 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
442 nodes[0].block_notifier.block_connected_checked(&header, 1, &Vec::new(), &[0; 0]);
443 nodes[1].block_notifier.block_connected_checked(&header, 1, &Vec::new(), &[0; 0]);
446 if steps & 0x0f == 0 { return; }
447 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
448 let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
450 if steps & 0x0f == 1 { return; }
451 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &open_channel);
452 let accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
454 if steps & 0x0f == 2 { return; }
455 nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &accept_channel);
457 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(&nodes[0], 100000, 42);
459 if steps & 0x0f == 3 { return; }
460 nodes[0].node.funding_transaction_generated(&temporary_channel_id, funding_output);
461 check_added_monitors!(nodes[0], 0);
462 let funding_created = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
464 if steps & 0x0f == 4 { return; }
465 nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created);
467 let mut added_monitors = nodes[1].chan_monitor.added_monitors.lock().unwrap();
468 assert_eq!(added_monitors.len(), 1);
469 assert_eq!(added_monitors[0].0, funding_output);
470 added_monitors.clear();
472 let funding_signed = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
474 if steps & 0x0f == 5 { return; }
475 nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed);
477 let mut added_monitors = nodes[0].chan_monitor.added_monitors.lock().unwrap();
478 assert_eq!(added_monitors.len(), 1);
479 assert_eq!(added_monitors[0].0, funding_output);
480 added_monitors.clear();
483 let events_4 = nodes[0].node.get_and_clear_pending_events();
484 assert_eq!(events_4.len(), 1);
486 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
487 assert_eq!(user_channel_id, 42);
488 assert_eq!(*funding_txo, funding_output);
490 _ => panic!("Unexpected event"),
493 if steps & 0x0f == 6 { return; }
494 create_chan_between_nodes_with_value_confirm_first(&nodes[0], &nodes[1], &tx);
496 if steps & 0x0f == 7 { return; }
497 confirm_transaction(&nodes[0].block_notifier, &nodes[0].chain_monitor, &tx, tx.version);
498 create_chan_between_nodes_with_value_confirm_second(&nodes[1], &nodes[0]);
502 fn test_sanity_on_in_flight_opens() {
503 do_test_sanity_on_in_flight_opens(0);
504 do_test_sanity_on_in_flight_opens(0 | 0b1000_0000);
505 do_test_sanity_on_in_flight_opens(1);
506 do_test_sanity_on_in_flight_opens(1 | 0b1000_0000);
507 do_test_sanity_on_in_flight_opens(2);
508 do_test_sanity_on_in_flight_opens(2 | 0b1000_0000);
509 do_test_sanity_on_in_flight_opens(3);
510 do_test_sanity_on_in_flight_opens(3 | 0b1000_0000);
511 do_test_sanity_on_in_flight_opens(4);
512 do_test_sanity_on_in_flight_opens(4 | 0b1000_0000);
513 do_test_sanity_on_in_flight_opens(5);
514 do_test_sanity_on_in_flight_opens(5 | 0b1000_0000);
515 do_test_sanity_on_in_flight_opens(6);
516 do_test_sanity_on_in_flight_opens(6 | 0b1000_0000);
517 do_test_sanity_on_in_flight_opens(7);
518 do_test_sanity_on_in_flight_opens(7 | 0b1000_0000);
519 do_test_sanity_on_in_flight_opens(8);
520 do_test_sanity_on_in_flight_opens(8 | 0b1000_0000);
524 fn test_update_fee_vanilla() {
525 let chanmon_cfgs = create_chanmon_cfgs(2);
526 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
527 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
528 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
529 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
530 let channel_id = chan.2;
532 let feerate = get_feerate!(nodes[0], channel_id);
533 nodes[0].node.update_fee(channel_id, feerate+25).unwrap();
534 check_added_monitors!(nodes[0], 1);
536 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
537 assert_eq!(events_0.len(), 1);
538 let (update_msg, commitment_signed) = match events_0[0] {
539 MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
540 (update_fee.as_ref(), commitment_signed)
542 _ => panic!("Unexpected event"),
544 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap());
546 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed);
547 let (revoke_msg, commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
548 check_added_monitors!(nodes[1], 1);
550 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg);
551 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
552 check_added_monitors!(nodes[0], 1);
554 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed);
555 let revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
556 // No commitment_signed so get_event_msg's assert(len == 1) passes
557 check_added_monitors!(nodes[0], 1);
559 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg);
560 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
561 check_added_monitors!(nodes[1], 1);
565 fn test_update_fee_that_funder_cannot_afford() {
566 let chanmon_cfgs = create_chanmon_cfgs(2);
567 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
568 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
569 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
570 let channel_value = 1888;
571 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 700000, InitFeatures::known(), InitFeatures::known());
572 let channel_id = chan.2;
575 nodes[0].node.update_fee(channel_id, feerate).unwrap();
576 check_added_monitors!(nodes[0], 1);
577 let update_msg = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
579 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg.update_fee.unwrap());
581 commitment_signed_dance!(nodes[1], nodes[0], update_msg.commitment_signed, false);
583 //Confirm that the new fee based on the last local commitment txn is what we expected based on the feerate of 260 set above.
584 //This value results in a fee that is exactly what the funder can afford (277 sat + 1000 sat channel reserve)
586 let commitment_tx = get_local_commitment_txn!(nodes[1], channel_id)[0].clone();
588 //We made sure neither party's funds are below the dust limit so -2 non-HTLC txns from number of outputs
589 let num_htlcs = commitment_tx.output.len() - 2;
590 let total_fee: u64 = feerate as u64 * (COMMITMENT_TX_BASE_WEIGHT + (num_htlcs as u64) * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
591 let mut actual_fee = commitment_tx.output.iter().fold(0, |acc, output| acc + output.value);
592 actual_fee = channel_value - actual_fee;
593 assert_eq!(total_fee, actual_fee);
596 //Add 2 to the previous fee rate to the final fee increases by 1 (with no HTLCs the fee is essentially
597 //fee_rate*(724/1000) so the increment of 1*0.724 is rounded back down)
598 nodes[0].node.update_fee(channel_id, feerate+2).unwrap();
599 check_added_monitors!(nodes[0], 1);
601 let update2_msg = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
603 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update2_msg.update_fee.unwrap());
605 //While producing the commitment_signed response after handling a received update_fee request the
606 //check to see if the funder, who sent the update_fee request, can afford the new fee (funder_balance >= fee+channel_reserve)
607 //Should produce and error.
608 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &update2_msg.commitment_signed);
609 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Funding remote cannot afford proposed new fee".to_string(), 1);
610 check_added_monitors!(nodes[1], 1);
611 check_closed_broadcast!(nodes[1], true);
615 fn test_update_fee_with_fundee_update_add_htlc() {
616 let chanmon_cfgs = create_chanmon_cfgs(2);
617 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
618 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
619 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
620 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
621 let channel_id = chan.2;
622 let logger = test_utils::TestLogger::new();
625 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
627 let feerate = get_feerate!(nodes[0], channel_id);
628 nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
629 check_added_monitors!(nodes[0], 1);
631 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
632 assert_eq!(events_0.len(), 1);
633 let (update_msg, commitment_signed) = match events_0[0] {
634 MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
635 (update_fee.as_ref(), commitment_signed)
637 _ => panic!("Unexpected event"),
639 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap());
640 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed);
641 let (revoke_msg, commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
642 check_added_monitors!(nodes[1], 1);
644 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[1]);
645 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
646 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &Vec::new(), 800000, TEST_FINAL_CLTV, &logger).unwrap();
648 // nothing happens since node[1] is in AwaitingRemoteRevoke
649 nodes[1].node.send_payment(&route, our_payment_hash, &None).unwrap();
651 let mut added_monitors = nodes[0].chan_monitor.added_monitors.lock().unwrap();
652 assert_eq!(added_monitors.len(), 0);
653 added_monitors.clear();
655 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
656 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
657 // node[1] has nothing to do
659 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg);
660 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
661 check_added_monitors!(nodes[0], 1);
663 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed);
664 let revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
665 // No commitment_signed so get_event_msg's assert(len == 1) passes
666 check_added_monitors!(nodes[0], 1);
667 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg);
668 check_added_monitors!(nodes[1], 1);
669 // AwaitingRemoteRevoke ends here
671 let commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
672 assert_eq!(commitment_update.update_add_htlcs.len(), 1);
673 assert_eq!(commitment_update.update_fulfill_htlcs.len(), 0);
674 assert_eq!(commitment_update.update_fail_htlcs.len(), 0);
675 assert_eq!(commitment_update.update_fail_malformed_htlcs.len(), 0);
676 assert_eq!(commitment_update.update_fee.is_none(), true);
678 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &commitment_update.update_add_htlcs[0]);
679 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_update.commitment_signed);
680 check_added_monitors!(nodes[0], 1);
681 let (revoke, commitment_signed) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
683 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke);
684 check_added_monitors!(nodes[1], 1);
685 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
687 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &commitment_signed);
688 check_added_monitors!(nodes[1], 1);
689 let revoke = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
690 // No commitment_signed so get_event_msg's assert(len == 1) passes
692 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke);
693 check_added_monitors!(nodes[0], 1);
694 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
696 expect_pending_htlcs_forwardable!(nodes[0]);
698 let events = nodes[0].node.get_and_clear_pending_events();
699 assert_eq!(events.len(), 1);
701 Event::PaymentReceived { .. } => { },
702 _ => panic!("Unexpected event"),
705 claim_payment(&nodes[1], &vec!(&nodes[0])[..], our_payment_preimage, 800_000);
707 send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000, 800_000);
708 send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000, 800_000);
709 close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
713 fn test_update_fee() {
714 let chanmon_cfgs = create_chanmon_cfgs(2);
715 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
716 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
717 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
718 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
719 let channel_id = chan.2;
722 // (1) update_fee/commitment_signed ->
723 // <- (2) revoke_and_ack
724 // .- send (3) commitment_signed
725 // (4) update_fee/commitment_signed ->
726 // .- send (5) revoke_and_ack (no CS as we're awaiting a revoke)
727 // <- (3) commitment_signed delivered
728 // send (6) revoke_and_ack -.
729 // <- (5) deliver revoke_and_ack
730 // (6) deliver revoke_and_ack ->
731 // .- send (7) commitment_signed in response to (4)
732 // <- (7) deliver commitment_signed
735 // Create and deliver (1)...
736 let feerate = get_feerate!(nodes[0], channel_id);
737 nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
738 check_added_monitors!(nodes[0], 1);
740 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
741 assert_eq!(events_0.len(), 1);
742 let (update_msg, commitment_signed) = match events_0[0] {
743 MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
744 (update_fee.as_ref(), commitment_signed)
746 _ => panic!("Unexpected event"),
748 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap());
750 // Generate (2) and (3):
751 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed);
752 let (revoke_msg, commitment_signed_0) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
753 check_added_monitors!(nodes[1], 1);
756 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg);
757 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
758 check_added_monitors!(nodes[0], 1);
760 // Create and deliver (4)...
761 nodes[0].node.update_fee(channel_id, feerate+30).unwrap();
762 check_added_monitors!(nodes[0], 1);
763 let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
764 assert_eq!(events_0.len(), 1);
765 let (update_msg, commitment_signed) = match events_0[0] {
766 MessageSendEvent::UpdateHTLCs { node_id:_, updates: msgs::CommitmentUpdate { update_add_htlcs:_, update_fulfill_htlcs:_, update_fail_htlcs:_, update_fail_malformed_htlcs:_, ref update_fee, ref commitment_signed } } => {
767 (update_fee.as_ref(), commitment_signed)
769 _ => panic!("Unexpected event"),
772 nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg.unwrap());
773 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed);
774 check_added_monitors!(nodes[1], 1);
776 let revoke_msg = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
777 // No commitment_signed so get_event_msg's assert(len == 1) passes
779 // Handle (3), creating (6):
780 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed_0);
781 check_added_monitors!(nodes[0], 1);
782 let revoke_msg_0 = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
783 // No commitment_signed so get_event_msg's assert(len == 1) passes
786 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &revoke_msg);
787 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
788 check_added_monitors!(nodes[0], 1);
790 // Deliver (6), creating (7):
791 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg_0);
792 let commitment_update = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
793 assert!(commitment_update.update_add_htlcs.is_empty());
794 assert!(commitment_update.update_fulfill_htlcs.is_empty());
795 assert!(commitment_update.update_fail_htlcs.is_empty());
796 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
797 assert!(commitment_update.update_fee.is_none());
798 check_added_monitors!(nodes[1], 1);
801 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_update.commitment_signed);
802 check_added_monitors!(nodes[0], 1);
803 let revoke_msg = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
804 // No commitment_signed so get_event_msg's assert(len == 1) passes
806 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &revoke_msg);
807 check_added_monitors!(nodes[1], 1);
808 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
810 assert_eq!(get_feerate!(nodes[0], channel_id), feerate + 30);
811 assert_eq!(get_feerate!(nodes[1], channel_id), feerate + 30);
812 close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
816 fn pre_funding_lock_shutdown_test() {
817 // Test sending a shutdown prior to funding_locked after funding generation
818 let chanmon_cfgs = create_chanmon_cfgs(2);
819 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
820 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
821 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
822 let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 8000000, 0, InitFeatures::known(), InitFeatures::known());
823 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
824 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![tx.clone()]}, 1);
825 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![tx.clone()]}, 1);
827 nodes[0].node.close_channel(&OutPoint { txid: tx.txid(), index: 0 }.to_channel_id()).unwrap();
828 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
829 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
830 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
831 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
833 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
834 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
835 let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
836 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap());
837 let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
838 assert!(node_0_none.is_none());
840 assert!(nodes[0].node.list_channels().is_empty());
841 assert!(nodes[1].node.list_channels().is_empty());
845 fn updates_shutdown_wait() {
846 // Test sending a shutdown with outstanding updates pending
847 let chanmon_cfgs = create_chanmon_cfgs(3);
848 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
849 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
850 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
851 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
852 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
853 let logger = test_utils::TestLogger::new();
855 let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100000);
857 nodes[0].node.close_channel(&chan_1.2).unwrap();
858 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
859 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
860 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
861 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
863 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
864 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
866 let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
868 let net_graph_msg_handler0 = &nodes[0].net_graph_msg_handler;
869 let net_graph_msg_handler1 = &nodes[1].net_graph_msg_handler;
870 let route_1 = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler0.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
871 let route_2 = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler1.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
872 unwrap_send_err!(nodes[0].node.send_payment(&route_1, payment_hash, &None), true, APIError::ChannelUnavailable {..}, {});
873 unwrap_send_err!(nodes[1].node.send_payment(&route_2, payment_hash, &None), true, APIError::ChannelUnavailable {..}, {});
875 assert!(nodes[2].node.claim_funds(our_payment_preimage, &None, 100_000));
876 check_added_monitors!(nodes[2], 1);
877 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
878 assert!(updates.update_add_htlcs.is_empty());
879 assert!(updates.update_fail_htlcs.is_empty());
880 assert!(updates.update_fail_malformed_htlcs.is_empty());
881 assert!(updates.update_fee.is_none());
882 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
883 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
884 check_added_monitors!(nodes[1], 1);
885 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
886 commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false);
888 assert!(updates_2.update_add_htlcs.is_empty());
889 assert!(updates_2.update_fail_htlcs.is_empty());
890 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
891 assert!(updates_2.update_fee.is_none());
892 assert_eq!(updates_2.update_fulfill_htlcs.len(), 1);
893 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]);
894 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
896 let events = nodes[0].node.get_and_clear_pending_events();
897 assert_eq!(events.len(), 1);
899 Event::PaymentSent { ref payment_preimage } => {
900 assert_eq!(our_payment_preimage, *payment_preimage);
902 _ => panic!("Unexpected event"),
905 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
906 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
907 let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
908 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap());
909 let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
910 assert!(node_0_none.is_none());
912 assert!(nodes[0].node.list_channels().is_empty());
914 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
915 nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
916 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true);
917 assert!(nodes[1].node.list_channels().is_empty());
918 assert!(nodes[2].node.list_channels().is_empty());
922 fn htlc_fail_async_shutdown() {
923 // Test HTLCs fail if shutdown starts even if messages are delivered out-of-order
924 let chanmon_cfgs = create_chanmon_cfgs(3);
925 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
926 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
927 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
928 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
929 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
930 let logger = test_utils::TestLogger::new();
932 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
933 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
934 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
935 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
936 check_added_monitors!(nodes[0], 1);
937 let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
938 assert_eq!(updates.update_add_htlcs.len(), 1);
939 assert!(updates.update_fulfill_htlcs.is_empty());
940 assert!(updates.update_fail_htlcs.is_empty());
941 assert!(updates.update_fail_malformed_htlcs.is_empty());
942 assert!(updates.update_fee.is_none());
944 nodes[1].node.close_channel(&chan_1.2).unwrap();
945 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
946 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
947 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
949 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
950 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &updates.commitment_signed);
951 check_added_monitors!(nodes[1], 1);
952 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
953 commitment_signed_dance!(nodes[1], nodes[0], (), false, true, false);
955 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
956 assert!(updates_2.update_add_htlcs.is_empty());
957 assert!(updates_2.update_fulfill_htlcs.is_empty());
958 assert_eq!(updates_2.update_fail_htlcs.len(), 1);
959 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
960 assert!(updates_2.update_fee.is_none());
962 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fail_htlcs[0]);
963 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
965 expect_payment_failed!(nodes[0], our_payment_hash, false);
967 let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
968 assert_eq!(msg_events.len(), 2);
969 let node_0_closing_signed = match msg_events[0] {
970 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
971 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
974 _ => panic!("Unexpected event"),
976 match msg_events[1] {
977 MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => {
978 assert_eq!(msg.contents.short_channel_id, chan_1.0.contents.short_channel_id);
980 _ => panic!("Unexpected event"),
983 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
984 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
985 let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
986 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap());
987 let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
988 assert!(node_0_none.is_none());
990 assert!(nodes[0].node.list_channels().is_empty());
992 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
993 nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
994 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true);
995 assert!(nodes[1].node.list_channels().is_empty());
996 assert!(nodes[2].node.list_channels().is_empty());
999 fn do_test_shutdown_rebroadcast(recv_count: u8) {
1000 // Test that shutdown/closing_signed is re-sent on reconnect with a variable number of
1001 // messages delivered prior to disconnect
1002 let chanmon_cfgs = create_chanmon_cfgs(3);
1003 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1004 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1005 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1006 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1007 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
1009 let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100000);
1011 nodes[1].node.close_channel(&chan_1.2).unwrap();
1012 let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
1014 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
1015 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
1017 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
1021 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1022 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1024 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1025 let node_0_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
1026 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1027 let node_1_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
1029 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_reestablish);
1030 let node_1_2nd_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
1031 assert!(node_1_shutdown == node_1_2nd_shutdown);
1033 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_reestablish);
1034 let node_0_2nd_shutdown = if recv_count > 0 {
1035 let node_0_2nd_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
1036 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_2nd_shutdown);
1039 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1040 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_2nd_shutdown);
1041 get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id())
1043 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_2nd_shutdown);
1045 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1046 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1048 assert!(nodes[2].node.claim_funds(our_payment_preimage, &None, 100_000));
1049 check_added_monitors!(nodes[2], 1);
1050 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1051 assert!(updates.update_add_htlcs.is_empty());
1052 assert!(updates.update_fail_htlcs.is_empty());
1053 assert!(updates.update_fail_malformed_htlcs.is_empty());
1054 assert!(updates.update_fee.is_none());
1055 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
1056 nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
1057 check_added_monitors!(nodes[1], 1);
1058 let updates_2 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1059 commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false);
1061 assert!(updates_2.update_add_htlcs.is_empty());
1062 assert!(updates_2.update_fail_htlcs.is_empty());
1063 assert!(updates_2.update_fail_malformed_htlcs.is_empty());
1064 assert!(updates_2.update_fee.is_none());
1065 assert_eq!(updates_2.update_fulfill_htlcs.len(), 1);
1066 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fulfill_htlcs[0]);
1067 commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
1069 let events = nodes[0].node.get_and_clear_pending_events();
1070 assert_eq!(events.len(), 1);
1072 Event::PaymentSent { ref payment_preimage } => {
1073 assert_eq!(our_payment_preimage, *payment_preimage);
1075 _ => panic!("Unexpected event"),
1078 let node_0_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
1080 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed);
1081 let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
1082 assert!(node_1_closing_signed.is_some());
1085 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
1086 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
1088 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1089 let node_0_2nd_reestablish = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id());
1090 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1091 if recv_count == 0 {
1092 // If all closing_signeds weren't delivered we can just resume where we left off...
1093 let node_1_2nd_reestablish = get_event_msg!(nodes[1], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
1095 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &node_1_2nd_reestablish);
1096 let node_0_3rd_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
1097 assert!(node_0_2nd_shutdown == node_0_3rd_shutdown);
1099 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_2nd_reestablish);
1100 let node_1_3rd_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
1101 assert!(node_1_3rd_shutdown == node_1_2nd_shutdown);
1103 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_3rd_shutdown);
1104 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1106 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_3rd_shutdown);
1107 let node_0_2nd_closing_signed = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
1108 assert!(node_0_closing_signed == node_0_2nd_closing_signed);
1110 nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_2nd_closing_signed);
1111 let (_, node_1_closing_signed) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
1112 nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &node_1_closing_signed.unwrap());
1113 let (_, node_0_none) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
1114 assert!(node_0_none.is_none());
1116 // If one node, however, received + responded with an identical closing_signed we end
1117 // up erroring and node[0] will try to broadcast its own latest commitment transaction.
1118 // There isn't really anything better we can do simply, but in the future we might
1119 // explore storing a set of recently-closed channels that got disconnected during
1120 // closing_signed and avoiding broadcasting local commitment txn for some timeout to
1121 // give our counterparty enough time to (potentially) broadcast a cooperative closing
1123 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1125 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &node_0_2nd_reestablish);
1126 let msg_events = nodes[1].node.get_and_clear_pending_msg_events();
1127 assert_eq!(msg_events.len(), 1);
1128 if let MessageSendEvent::HandleError { ref action, .. } = msg_events[0] {
1130 &ErrorAction::SendErrorMessage { ref msg } => {
1131 nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msg);
1132 assert_eq!(msg.channel_id, chan_1.2);
1134 _ => panic!("Unexpected event!"),
1136 } else { panic!("Needed SendErrorMessage close"); }
1138 // get_closing_signed_broadcast usually eats the BroadcastChannelUpdate for us and
1139 // checks it, but in this case nodes[0] didn't ever get a chance to receive a
1140 // closing_signed so we do it ourselves
1141 check_closed_broadcast!(nodes[0], false);
1142 check_added_monitors!(nodes[0], 1);
1145 assert!(nodes[0].node.list_channels().is_empty());
1147 assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
1148 nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
1149 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, true);
1150 assert!(nodes[1].node.list_channels().is_empty());
1151 assert!(nodes[2].node.list_channels().is_empty());
1155 fn test_shutdown_rebroadcast() {
1156 do_test_shutdown_rebroadcast(0);
1157 do_test_shutdown_rebroadcast(1);
1158 do_test_shutdown_rebroadcast(2);
1162 fn fake_network_test() {
1163 // Simple test which builds a network of ChannelManagers, connects them to each other, and
1164 // tests that payments get routed and transactions broadcast in semi-reasonable ways.
1165 let chanmon_cfgs = create_chanmon_cfgs(4);
1166 let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
1167 let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
1168 let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
1170 // Create some initial channels
1171 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1172 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
1173 let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known());
1175 // Rebalance the network a bit by relaying one payment through all the channels...
1176 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000);
1177 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000);
1178 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000);
1179 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000);
1181 // Send some more payments
1182 send_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 1000000, 1_000_000);
1183 send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1], &nodes[0])[..], 1000000, 1_000_000);
1184 send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1])[..], 1000000, 1_000_000);
1186 // Test failure packets
1187 let payment_hash_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 1000000).1;
1188 fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], payment_hash_1);
1190 // Add a new channel that skips 3
1191 let chan_4 = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known());
1193 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 1000000, 1_000_000);
1194 send_payment(&nodes[2], &vec!(&nodes[3])[..], 1000000, 1_000_000);
1195 send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000);
1196 send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000);
1197 send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000);
1198 send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000);
1199 send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000);
1201 // Do some rebalance loop payments, simultaneously
1202 let mut hops = Vec::with_capacity(3);
1203 hops.push(RouteHop {
1204 pubkey: nodes[2].node.get_our_node_id(),
1205 node_features: NodeFeatures::empty(),
1206 short_channel_id: chan_2.0.contents.short_channel_id,
1207 channel_features: ChannelFeatures::empty(),
1209 cltv_expiry_delta: chan_3.0.contents.cltv_expiry_delta as u32
1211 hops.push(RouteHop {
1212 pubkey: nodes[3].node.get_our_node_id(),
1213 node_features: NodeFeatures::empty(),
1214 short_channel_id: chan_3.0.contents.short_channel_id,
1215 channel_features: ChannelFeatures::empty(),
1217 cltv_expiry_delta: chan_4.1.contents.cltv_expiry_delta as u32
1219 hops.push(RouteHop {
1220 pubkey: nodes[1].node.get_our_node_id(),
1221 node_features: NodeFeatures::empty(),
1222 short_channel_id: chan_4.0.contents.short_channel_id,
1223 channel_features: ChannelFeatures::empty(),
1225 cltv_expiry_delta: TEST_FINAL_CLTV,
1227 hops[1].fee_msat = chan_4.1.contents.fee_base_msat as u64 + chan_4.1.contents.fee_proportional_millionths as u64 * hops[2].fee_msat as u64 / 1000000;
1228 hops[0].fee_msat = chan_3.0.contents.fee_base_msat as u64 + chan_3.0.contents.fee_proportional_millionths as u64 * hops[1].fee_msat as u64 / 1000000;
1229 let payment_preimage_1 = send_along_route(&nodes[1], Route { paths: vec![hops] }, &vec!(&nodes[2], &nodes[3], &nodes[1])[..], 1000000).0;
1231 let mut hops = Vec::with_capacity(3);
1232 hops.push(RouteHop {
1233 pubkey: nodes[3].node.get_our_node_id(),
1234 node_features: NodeFeatures::empty(),
1235 short_channel_id: chan_4.0.contents.short_channel_id,
1236 channel_features: ChannelFeatures::empty(),
1238 cltv_expiry_delta: chan_3.1.contents.cltv_expiry_delta as u32
1240 hops.push(RouteHop {
1241 pubkey: nodes[2].node.get_our_node_id(),
1242 node_features: NodeFeatures::empty(),
1243 short_channel_id: chan_3.0.contents.short_channel_id,
1244 channel_features: ChannelFeatures::empty(),
1246 cltv_expiry_delta: chan_2.1.contents.cltv_expiry_delta as u32
1248 hops.push(RouteHop {
1249 pubkey: nodes[1].node.get_our_node_id(),
1250 node_features: NodeFeatures::empty(),
1251 short_channel_id: chan_2.0.contents.short_channel_id,
1252 channel_features: ChannelFeatures::empty(),
1254 cltv_expiry_delta: TEST_FINAL_CLTV,
1256 hops[1].fee_msat = chan_2.1.contents.fee_base_msat as u64 + chan_2.1.contents.fee_proportional_millionths as u64 * hops[2].fee_msat as u64 / 1000000;
1257 hops[0].fee_msat = chan_3.1.contents.fee_base_msat as u64 + chan_3.1.contents.fee_proportional_millionths as u64 * hops[1].fee_msat as u64 / 1000000;
1258 let payment_hash_2 = send_along_route(&nodes[1], Route { paths: vec![hops] }, &vec!(&nodes[3], &nodes[2], &nodes[1])[..], 1000000).1;
1260 // Claim the rebalances...
1261 fail_payment(&nodes[1], &vec!(&nodes[3], &nodes[2], &nodes[1])[..], payment_hash_2);
1262 claim_payment(&nodes[1], &vec!(&nodes[2], &nodes[3], &nodes[1])[..], payment_preimage_1, 1_000_000);
1264 // Add a duplicate new channel from 2 to 4
1265 let chan_5 = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known());
1267 // Send some payments across both channels
1268 let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0;
1269 let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0;
1270 let payment_preimage_5 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0;
1273 route_over_limit(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000);
1274 let events = nodes[0].node.get_and_clear_pending_msg_events();
1275 assert_eq!(events.len(), 0);
1276 nodes[0].logger.assert_log_regex("lightning::ln::channelmanager".to_string(), regex::Regex::new(r"Cannot send value that would put us over the max HTLC value in flight our peer will accept \(\d+\)").unwrap(), 1);
1278 //TODO: Test that routes work again here as we've been notified that the channel is full
1280 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_3, 3_000_000);
1281 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_4, 3_000_000);
1282 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_5, 3_000_000);
1284 // Close down the channels...
1285 close_channel(&nodes[0], &nodes[1], &chan_1.2, chan_1.3, true);
1286 close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, false);
1287 close_channel(&nodes[2], &nodes[3], &chan_3.2, chan_3.3, true);
1288 close_channel(&nodes[1], &nodes[3], &chan_4.2, chan_4.3, false);
1289 close_channel(&nodes[1], &nodes[3], &chan_5.2, chan_5.3, false);
1293 fn holding_cell_htlc_counting() {
1294 // Tests that HTLCs in the holding cell count towards the pending HTLC limits on outbound HTLCs
1295 // to ensure we don't end up with HTLCs sitting around in our holding cell for several
1296 // commitment dance rounds.
1297 let chanmon_cfgs = create_chanmon_cfgs(3);
1298 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1299 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1300 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1301 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1302 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
1303 let logger = test_utils::TestLogger::new();
1305 let mut payments = Vec::new();
1306 for _ in 0..::ln::channel::OUR_MAX_HTLCS {
1307 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[0]);
1308 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
1309 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
1310 nodes[1].node.send_payment(&route, payment_hash, &None).unwrap();
1311 payments.push((payment_preimage, payment_hash));
1313 check_added_monitors!(nodes[1], 1);
1315 let mut events = nodes[1].node.get_and_clear_pending_msg_events();
1316 assert_eq!(events.len(), 1);
1317 let initial_payment_event = SendEvent::from_event(events.pop().unwrap());
1318 assert_eq!(initial_payment_event.node_id, nodes[2].node.get_our_node_id());
1320 // There is now one HTLC in an outbound commitment transaction and (OUR_MAX_HTLCS - 1) HTLCs in
1321 // the holding cell waiting on B's RAA to send. At this point we should not be able to add
1323 let (_, payment_hash_1) = get_payment_preimage_hash!(nodes[0]);
1325 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
1326 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
1327 unwrap_send_err!(nodes[1].node.send_payment(&route, payment_hash_1, &None), true, APIError::ChannelUnavailable { ref err },
1328 assert!(regex::Regex::new(r"Cannot push more than their max accepted HTLCs \(\d+\)").unwrap().is_match(err)));
1329 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1330 nodes[1].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot push more than their max accepted HTLCs".to_string(), 1);
1333 // This should also be true if we try to forward a payment.
1334 let (_, payment_hash_2) = get_payment_preimage_hash!(nodes[0]);
1336 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1337 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
1338 nodes[0].node.send_payment(&route, payment_hash_2, &None).unwrap();
1339 check_added_monitors!(nodes[0], 1);
1342 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1343 assert_eq!(events.len(), 1);
1344 let payment_event = SendEvent::from_event(events.pop().unwrap());
1345 assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id());
1347 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
1348 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
1349 // We have to forward pending HTLCs twice - once tries to forward the payment forward (and
1350 // fails), the second will process the resulting failure and fail the HTLC backward.
1351 expect_pending_htlcs_forwardable!(nodes[1]);
1352 expect_pending_htlcs_forwardable!(nodes[1]);
1353 check_added_monitors!(nodes[1], 1);
1355 let bs_fail_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
1356 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &bs_fail_updates.update_fail_htlcs[0]);
1357 commitment_signed_dance!(nodes[0], nodes[1], bs_fail_updates.commitment_signed, false, true);
1359 let events = nodes[0].node.get_and_clear_pending_msg_events();
1360 assert_eq!(events.len(), 1);
1362 MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => {
1363 assert_eq!(msg.contents.short_channel_id, chan_2.0.contents.short_channel_id);
1365 _ => panic!("Unexpected event"),
1368 expect_payment_failed!(nodes[0], payment_hash_2, false);
1370 // Now forward all the pending HTLCs and claim them back
1371 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &initial_payment_event.msgs[0]);
1372 nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &initial_payment_event.commitment_msg);
1373 check_added_monitors!(nodes[2], 1);
1375 let (bs_revoke_and_ack, bs_commitment_signed) = get_revoke_commit_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1376 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack);
1377 check_added_monitors!(nodes[1], 1);
1378 let as_updates = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
1380 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_commitment_signed);
1381 check_added_monitors!(nodes[1], 1);
1382 let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id());
1384 for ref update in as_updates.update_add_htlcs.iter() {
1385 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), update);
1387 nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_updates.commitment_signed);
1388 check_added_monitors!(nodes[2], 1);
1389 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa);
1390 check_added_monitors!(nodes[2], 1);
1391 let (bs_revoke_and_ack, bs_commitment_signed) = get_revoke_commit_msgs!(nodes[2], nodes[1].node.get_our_node_id());
1393 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_revoke_and_ack);
1394 check_added_monitors!(nodes[1], 1);
1395 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &bs_commitment_signed);
1396 check_added_monitors!(nodes[1], 1);
1397 let as_final_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id());
1399 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_final_raa);
1400 check_added_monitors!(nodes[2], 1);
1402 expect_pending_htlcs_forwardable!(nodes[2]);
1404 let events = nodes[2].node.get_and_clear_pending_events();
1405 assert_eq!(events.len(), payments.len());
1406 for (event, &(_, ref hash)) in events.iter().zip(payments.iter()) {
1408 &Event::PaymentReceived { ref payment_hash, .. } => {
1409 assert_eq!(*payment_hash, *hash);
1411 _ => panic!("Unexpected event"),
1415 for (preimage, _) in payments.drain(..) {
1416 claim_payment(&nodes[1], &[&nodes[2]], preimage, 100_000);
1419 send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000, 1_000_000);
1423 fn duplicate_htlc_test() {
1424 // Test that we accept duplicate payment_hash HTLCs across the network and that
1425 // claiming/failing them are all separate and don't affect each other
1426 let chanmon_cfgs = create_chanmon_cfgs(6);
1427 let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
1428 let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
1429 let mut nodes = create_network(6, &node_cfgs, &node_chanmgrs);
1431 // Create some initial channels to route via 3 to 4/5 from 0/1/2
1432 create_announced_chan_between_nodes(&nodes, 0, 3, InitFeatures::known(), InitFeatures::known());
1433 create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known());
1434 create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known());
1435 create_announced_chan_between_nodes(&nodes, 3, 4, InitFeatures::known(), InitFeatures::known());
1436 create_announced_chan_between_nodes(&nodes, 3, 5, InitFeatures::known(), InitFeatures::known());
1438 let (payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], 1000000);
1440 *nodes[0].network_payment_count.borrow_mut() -= 1;
1441 assert_eq!(route_payment(&nodes[1], &vec!(&nodes[3])[..], 1000000).0, payment_preimage);
1443 *nodes[0].network_payment_count.borrow_mut() -= 1;
1444 assert_eq!(route_payment(&nodes[2], &vec!(&nodes[3], &nodes[5])[..], 1000000).0, payment_preimage);
1446 claim_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], payment_preimage, 1_000_000);
1447 fail_payment(&nodes[2], &vec!(&nodes[3], &nodes[5])[..], payment_hash);
1448 claim_payment(&nodes[1], &vec!(&nodes[3])[..], payment_preimage, 1_000_000);
1452 fn test_duplicate_htlc_different_direction_onchain() {
1453 // Test that ChannelMonitor doesn't generate 2 preimage txn
1454 // when we have 2 HTLCs with same preimage that go across a node
1455 // in opposite directions.
1456 let chanmon_cfgs = create_chanmon_cfgs(2);
1457 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1458 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1459 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1461 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
1462 let logger = test_utils::TestLogger::new();
1465 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
1467 let (payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 900_000);
1469 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
1470 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &Vec::new(), 800_000, TEST_FINAL_CLTV, &logger).unwrap();
1471 send_along_route_with_hash(&nodes[1], route, &vec!(&nodes[0])[..], 800_000, payment_hash);
1473 // Provide preimage to node 0 by claiming payment
1474 nodes[0].node.claim_funds(payment_preimage, &None, 800_000);
1475 check_added_monitors!(nodes[0], 1);
1477 // Broadcast node 1 commitment txn
1478 let remote_txn = get_local_commitment_txn!(nodes[1], chan_1.2);
1480 assert_eq!(remote_txn[0].output.len(), 4); // 1 local, 1 remote, 1 htlc inbound, 1 htlc outbound
1481 let mut has_both_htlcs = 0; // check htlcs match ones committed
1482 for outp in remote_txn[0].output.iter() {
1483 if outp.value == 800_000 / 1000 {
1484 has_both_htlcs += 1;
1485 } else if outp.value == 900_000 / 1000 {
1486 has_both_htlcs += 1;
1489 assert_eq!(has_both_htlcs, 2);
1491 let header = BlockHeader { version: 0x2000_0000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
1492 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![remote_txn[0].clone()] }, 1);
1493 check_added_monitors!(nodes[0], 1);
1495 // Check we only broadcast 1 timeout tx
1496 let claim_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
1497 let htlc_pair = if claim_txn[0].output[0].value == 800_000 / 1000 { (claim_txn[0].clone(), claim_txn[1].clone()) } else { (claim_txn[1].clone(), claim_txn[0].clone()) };
1498 assert_eq!(claim_txn.len(), 5);
1499 check_spends!(claim_txn[2], chan_1.3);
1500 check_spends!(claim_txn[3], claim_txn[2]);
1501 assert_eq!(htlc_pair.0.input.len(), 1);
1502 assert_eq!(htlc_pair.0.input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC 1 <--> 0, preimage tx
1503 check_spends!(htlc_pair.0, remote_txn[0]);
1504 assert_eq!(htlc_pair.1.input.len(), 1);
1505 assert_eq!(htlc_pair.1.input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // HTLC 0 <--> 1, timeout tx
1506 check_spends!(htlc_pair.1, remote_txn[0]);
1508 let events = nodes[0].node.get_and_clear_pending_msg_events();
1509 assert_eq!(events.len(), 2);
1512 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
1513 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => {
1514 assert!(update_add_htlcs.is_empty());
1515 assert!(update_fail_htlcs.is_empty());
1516 assert_eq!(update_fulfill_htlcs.len(), 1);
1517 assert!(update_fail_malformed_htlcs.is_empty());
1518 assert_eq!(nodes[1].node.get_our_node_id(), *node_id);
1520 _ => panic!("Unexpected event"),
1526 fn test_basic_channel_reserve() {
1527 let chanmon_cfgs = create_chanmon_cfgs(2);
1528 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1529 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1530 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1531 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
1532 let logger = test_utils::TestLogger::new();
1534 let chan_stat = get_channel_value_stat!(nodes[0], chan.2);
1535 let channel_reserve = chan_stat.channel_reserve_msat;
1537 // The 2* and +1 are for the fee spike reserve.
1538 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
1539 let commit_tx_fee = 2 * commit_tx_fee_msat(get_feerate!(nodes[0], chan.2), 1 + 1);
1540 let max_can_send = 5000000 - channel_reserve - commit_tx_fee;
1541 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1542 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes.last().unwrap().node.get_our_node_id(), None, &Vec::new(), max_can_send + 1, TEST_FINAL_CLTV, &logger).unwrap();
1543 let err = nodes[0].node.send_payment(&route, our_payment_hash, &None).err().unwrap();
1545 PaymentSendFailure::AllFailedRetrySafe(ref fails) => {
1547 &APIError::ChannelUnavailable{ref err} =>
1548 assert!(regex::Regex::new(r"Cannot send value that would put us under local channel reserve value \(\d+\)").unwrap().is_match(err)),
1549 _ => panic!("Unexpected error variant"),
1552 _ => panic!("Unexpected error variant"),
1554 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1555 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put us under local channel reserve value".to_string(), 1);
1557 send_payment(&nodes[0], &vec![&nodes[1]], max_can_send, max_can_send);
1561 fn test_fee_spike_violation_fails_htlc() {
1562 let chanmon_cfgs = create_chanmon_cfgs(2);
1563 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1564 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1565 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1566 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
1567 let logger = test_utils::TestLogger::new();
1569 macro_rules! get_route_and_payment_hash {
1570 ($recv_value: expr) => {{
1571 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[1]);
1572 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler.network_graph.read().unwrap();
1573 let route = get_route(&nodes[0].node.get_our_node_id(), net_graph_msg_handler, &nodes.last().unwrap().node.get_our_node_id(), None, &Vec::new(), $recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1574 (route, payment_hash, payment_preimage)
1578 let (route, payment_hash, _) = get_route_and_payment_hash!(3460001);
1579 // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
1580 let secp_ctx = Secp256k1::new();
1581 let session_priv = SecretKey::from_slice(&[42; 32]).expect("RNG is bad!");
1583 let cur_height = nodes[1].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
1585 let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
1586 let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 3460001, &None, cur_height).unwrap();
1587 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
1588 let msg = msgs::UpdateAddHTLC {
1591 amount_msat: htlc_msat,
1592 payment_hash: payment_hash,
1593 cltv_expiry: htlc_cltv,
1594 onion_routing_packet: onion_packet,
1597 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg);
1599 // Now manually create the commitment_signed message corresponding to the update_add
1600 // nodes[0] just sent. In the code for construction of this message, "local" refers
1601 // to the sender of the message, and "remote" refers to the receiver.
1603 let feerate_per_kw = get_feerate!(nodes[0], chan.2);
1605 const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1;
1607 // Get the EnforcingChannelKeys for each channel, which will be used to (1) get the keys
1608 // needed to sign the new commitment tx and (2) sign the new commitment tx.
1609 let (local_revocation_basepoint, local_htlc_basepoint, local_payment_point, local_secret, local_secret2) = {
1610 let chan_lock = nodes[0].node.channel_state.lock().unwrap();
1611 let local_chan = chan_lock.by_id.get(&chan.2).unwrap();
1612 let chan_keys = local_chan.get_local_keys();
1613 let pubkeys = chan_keys.pubkeys();
1614 (pubkeys.revocation_basepoint, pubkeys.htlc_basepoint, pubkeys.payment_point,
1615 chan_keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER), chan_keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 2))
1617 let (remote_delayed_payment_basepoint, remote_htlc_basepoint, remote_payment_point, remote_secret1) = {
1618 let chan_lock = nodes[1].node.channel_state.lock().unwrap();
1619 let remote_chan = chan_lock.by_id.get(&chan.2).unwrap();
1620 let chan_keys = remote_chan.get_local_keys();
1621 let pubkeys = chan_keys.pubkeys();
1622 (pubkeys.delayed_payment_basepoint, pubkeys.htlc_basepoint, pubkeys.payment_point,
1623 chan_keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 1))
1626 // Assemble the set of keys we can use for signatures for our commitment_signed message.
1627 let commitment_secret = SecretKey::from_slice(&remote_secret1).unwrap();
1628 let per_commitment_point = PublicKey::from_secret_key(&secp_ctx, &commitment_secret);
1629 let commit_tx_keys = chan_utils::TxCreationKeys::new(&secp_ctx, &per_commitment_point, &remote_delayed_payment_basepoint,
1630 &remote_htlc_basepoint, &local_revocation_basepoint, &local_htlc_basepoint).unwrap();
1632 // Build the remote commitment transaction so we can sign it, and then later use the
1633 // signature for the commitment_signed message.
1634 let local_chan_balance = 1313;
1635 let static_payment_pk = local_payment_point.serialize();
1636 let remote_commit_tx_output = TxOut {
1637 script_pubkey: Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0)
1638 .push_slice(&WPubkeyHash::hash(&static_payment_pk)[..])
1640 value: local_chan_balance as u64
1643 let local_commit_tx_output = TxOut {
1644 script_pubkey: chan_utils::get_revokeable_redeemscript(&commit_tx_keys.revocation_key,
1646 &commit_tx_keys.a_delayed_payment_key).to_v0_p2wsh(),
1650 let accepted_htlc_info = chan_utils::HTLCOutputInCommitment {
1652 amount_msat: 3460001,
1653 cltv_expiry: htlc_cltv,
1654 payment_hash: payment_hash,
1655 transaction_output_index: Some(1),
1658 let htlc_output = TxOut {
1659 script_pubkey: chan_utils::get_htlc_redeemscript(&accepted_htlc_info, &commit_tx_keys).to_v0_p2wsh(),
1660 value: 3460001 / 1000
1663 let commit_tx_obscure_factor = {
1664 let mut sha = Sha256::engine();
1665 let remote_payment_point = &remote_payment_point.serialize();
1666 sha.input(&local_payment_point.serialize());
1667 sha.input(remote_payment_point);
1668 let res = Sha256::from_engine(sha).into_inner();
1670 ((res[26] as u64) << 5*8) |
1671 ((res[27] as u64) << 4*8) |
1672 ((res[28] as u64) << 3*8) |
1673 ((res[29] as u64) << 2*8) |
1674 ((res[30] as u64) << 1*8) |
1675 ((res[31] as u64) << 0*8)
1677 let commitment_number = 1;
1678 let obscured_commitment_transaction_number = commit_tx_obscure_factor ^ commitment_number;
1679 let lock_time = ((0x20 as u32) << 8*3) | ((obscured_commitment_transaction_number & 0xffffffu64) as u32);
1681 previous_output: BitcoinOutPoint { txid: chan.3.txid(), vout: 0 },
1682 script_sig: Script::new(),
1683 sequence: ((0x80 as u32) << 8*3) | ((obscured_commitment_transaction_number >> 3*8) as u32),
1684 witness: Vec::new(),
1687 let commit_tx = Transaction {
1691 output: vec![remote_commit_tx_output, htlc_output, local_commit_tx_output],
1694 let local_chan_lock = nodes[0].node.channel_state.lock().unwrap();
1695 let local_chan = local_chan_lock.by_id.get(&chan.2).unwrap();
1696 let local_chan_keys = local_chan.get_local_keys();
1697 local_chan_keys.sign_remote_commitment(feerate_per_kw, &commit_tx, &commit_tx_keys, &[&accepted_htlc_info], &secp_ctx).unwrap()
1700 let commit_signed_msg = msgs::CommitmentSigned {
1703 htlc_signatures: res.1
1706 // Send the commitment_signed message to the nodes[1].
1707 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &commit_signed_msg);
1708 let _ = nodes[1].node.get_and_clear_pending_msg_events();
1710 // Send the RAA to nodes[1].
1711 let per_commitment_secret = local_secret;
1712 let next_secret = SecretKey::from_slice(&local_secret2).unwrap();
1713 let next_per_commitment_point = PublicKey::from_secret_key(&secp_ctx, &next_secret);
1714 let raa_msg = msgs::RevokeAndACK{ channel_id: chan.2, per_commitment_secret, next_per_commitment_point};
1715 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &raa_msg);
1717 let events = nodes[1].node.get_and_clear_pending_msg_events();
1718 assert_eq!(events.len(), 1);
1719 // Make sure the HTLC failed in the way we expect.
1721 MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fail_htlcs, .. }, .. } => {
1722 assert_eq!(update_fail_htlcs.len(), 1);
1723 update_fail_htlcs[0].clone()
1725 _ => panic!("Unexpected event"),
1727 nodes[1].logger.assert_log("lightning::ln::channel".to_string(), "Attempting to fail HTLC due to fee spike buffer violation".to_string(), 1);
1729 check_added_monitors!(nodes[1], 2);
1733 fn test_chan_reserve_violation_outbound_htlc_inbound_chan() {
1734 let mut chanmon_cfgs = create_chanmon_cfgs(2);
1735 // Set the fee rate for the channel very high, to the point where the fundee
1736 // sending any amount would result in a channel reserve violation. In this test
1737 // we check that we would be prevented from sending an HTLC in this situation.
1738 chanmon_cfgs[0].fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 6000 };
1739 chanmon_cfgs[1].fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 6000 };
1740 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1741 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1742 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1743 let _ = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
1744 let logger = test_utils::TestLogger::new();
1746 macro_rules! get_route_and_payment_hash {
1747 ($recv_value: expr) => {{
1748 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[1]);
1749 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
1750 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes.first().unwrap().node.get_our_node_id(), None, &Vec::new(), $recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1751 (route, payment_hash, payment_preimage)
1755 let (route, our_payment_hash, _) = get_route_and_payment_hash!(1000);
1756 unwrap_send_err!(nodes[1].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1757 assert_eq!(err, "Cannot send value that would put them under remote channel reserve value"));
1758 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
1759 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Cannot send value that would put them under remote channel reserve value".to_string(), 1);
1763 fn test_chan_reserve_violation_inbound_htlc_outbound_channel() {
1764 let mut chanmon_cfgs = create_chanmon_cfgs(2);
1765 // Set the fee rate for the channel very high, to the point where the funder
1766 // receiving 1 update_add_htlc would result in them closing the channel due
1767 // to channel reserve violation. This close could also happen if the fee went
1768 // up a more realistic amount, but many HTLCs were outstanding at the time of
1769 // the update_add_htlc.
1770 chanmon_cfgs[0].fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 6000 };
1771 chanmon_cfgs[1].fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 6000 };
1772 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
1773 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
1774 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
1775 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
1776 let logger = test_utils::TestLogger::new();
1778 macro_rules! get_route_and_payment_hash {
1779 ($recv_value: expr) => {{
1780 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[1]);
1781 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1782 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes.first().unwrap().node.get_our_node_id(), None, &Vec::new(), $recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1783 (route, payment_hash, payment_preimage)
1787 let (route, payment_hash, _) = get_route_and_payment_hash!(1000);
1788 // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
1789 let secp_ctx = Secp256k1::new();
1790 let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
1791 let cur_height = nodes[1].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
1792 let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
1793 let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 1000, &None, cur_height).unwrap();
1794 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
1795 let msg = msgs::UpdateAddHTLC {
1798 amount_msat: htlc_msat + 1,
1799 payment_hash: payment_hash,
1800 cltv_expiry: htlc_cltv,
1801 onion_routing_packet: onion_packet,
1804 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &msg);
1805 // Check that the payment failed and the channel is closed in response to the malicious UpdateAdd.
1806 nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Cannot receive value that would put us under local channel reserve value".to_string(), 1);
1807 assert_eq!(nodes[0].node.list_channels().len(), 0);
1808 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
1809 assert_eq!(err_msg.data, "Cannot receive value that would put us under local channel reserve value");
1810 check_added_monitors!(nodes[0], 1);
1814 fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
1815 let chanmon_cfgs = create_chanmon_cfgs(3);
1816 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1817 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1818 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1819 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
1820 let _ = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
1821 let logger = test_utils::TestLogger::new();
1823 macro_rules! get_route_and_payment_hash {
1824 ($recv_value: expr) => {{
1825 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[0]);
1826 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1827 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes.last().unwrap().node.get_our_node_id(), None, &Vec::new(), $recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1828 (route, payment_hash, payment_preimage)
1833 let total_routing_fee_msat = (nodes.len() - 2) as u64 * feemsat;
1834 let chan_stat = get_channel_value_stat!(nodes[0], chan.2);
1835 let feerate = get_feerate!(nodes[0], chan.2);
1837 // Add a 2* and +1 for the fee spike reserve.
1838 let commit_tx_fee_2_htlc = 2*commit_tx_fee_msat(feerate, 2 + 1);
1839 let recv_value_1 = (chan_stat.value_to_self_msat - chan_stat.channel_reserve_msat - total_routing_fee_msat - commit_tx_fee_2_htlc)/2;
1840 let amt_msat_1 = recv_value_1 + total_routing_fee_msat;
1842 // Add a pending HTLC.
1843 let (route_1, our_payment_hash_1, _) = get_route_and_payment_hash!(amt_msat_1);
1844 let payment_event_1 = {
1845 nodes[0].node.send_payment(&route_1, our_payment_hash_1, &None).unwrap();
1846 check_added_monitors!(nodes[0], 1);
1848 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1849 assert_eq!(events.len(), 1);
1850 SendEvent::from_event(events.remove(0))
1852 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event_1.msgs[0]);
1854 // Attempt to trigger a channel reserve violation --> payment failure.
1855 let commit_tx_fee_2_htlcs = commit_tx_fee_msat(feerate, 2);
1856 let recv_value_2 = chan_stat.value_to_self_msat - amt_msat_1 - chan_stat.channel_reserve_msat - total_routing_fee_msat - commit_tx_fee_2_htlcs + 1;
1857 let amt_msat_2 = recv_value_2 + total_routing_fee_msat;
1858 let (route_2, _, _) = get_route_and_payment_hash!(amt_msat_2);
1860 // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
1861 let secp_ctx = Secp256k1::new();
1862 let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
1863 let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
1864 let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route_2.paths[0], &session_priv).unwrap();
1865 let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route_2.paths[0], recv_value_2, &None, cur_height).unwrap();
1866 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash_1);
1867 let msg = msgs::UpdateAddHTLC {
1870 amount_msat: htlc_msat + 1,
1871 payment_hash: our_payment_hash_1,
1872 cltv_expiry: htlc_cltv,
1873 onion_routing_packet: onion_packet,
1876 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg);
1877 // Check that the payment failed and the channel is closed in response to the malicious UpdateAdd.
1878 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Remote HTLC add would put them under remote reserve value".to_string(), 1);
1879 assert_eq!(nodes[1].node.list_channels().len(), 1);
1880 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
1881 assert_eq!(err_msg.data, "Remote HTLC add would put them under remote reserve value");
1882 check_added_monitors!(nodes[1], 1);
1885 fn commit_tx_fee_msat(feerate: u32, num_htlcs: u64) -> u64 {
1886 (COMMITMENT_TX_BASE_WEIGHT + num_htlcs * COMMITMENT_TX_WEIGHT_PER_HTLC) * feerate as u64 / 1000 * 1000
1890 fn test_channel_reserve_holding_cell_htlcs() {
1891 let chanmon_cfgs = create_chanmon_cfgs(3);
1892 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
1893 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
1894 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
1895 let chan_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 190000, 1001, InitFeatures::known(), InitFeatures::known());
1896 let chan_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 190000, 1001, InitFeatures::known(), InitFeatures::known());
1897 let logger = test_utils::TestLogger::new();
1899 let mut stat01 = get_channel_value_stat!(nodes[0], chan_1.2);
1900 let mut stat11 = get_channel_value_stat!(nodes[1], chan_1.2);
1902 let mut stat12 = get_channel_value_stat!(nodes[1], chan_2.2);
1903 let mut stat22 = get_channel_value_stat!(nodes[2], chan_2.2);
1905 macro_rules! get_route_and_payment_hash {
1906 ($recv_value: expr) => {{
1907 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(nodes[0]);
1908 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
1909 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes.last().unwrap().node.get_our_node_id(), None, &Vec::new(), $recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1910 (route, payment_hash, payment_preimage)
1914 macro_rules! expect_forward {
1916 let mut events = $node.node.get_and_clear_pending_msg_events();
1917 assert_eq!(events.len(), 1);
1918 check_added_monitors!($node, 1);
1919 let payment_event = SendEvent::from_event(events.remove(0));
1924 let feemsat = 239; // somehow we know?
1925 let total_fee_msat = (nodes.len() - 2) as u64 * feemsat;
1926 let feerate = get_feerate!(nodes[0], chan_1.2);
1928 let recv_value_0 = stat01.their_max_htlc_value_in_flight_msat - total_fee_msat;
1930 // attempt to send amt_msat > their_max_htlc_value_in_flight_msat
1932 let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_0 + 1);
1933 assert!(route.paths[0].iter().rev().skip(1).all(|h| h.fee_msat == feemsat));
1934 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1935 assert!(regex::Regex::new(r"Cannot send value that would put us over the max HTLC value in flight our peer will accept \(\d+\)").unwrap().is_match(err)));
1936 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
1937 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put us over the max HTLC value in flight our peer will accept".to_string(), 1);
1940 // channel reserve is bigger than their_max_htlc_value_in_flight_msat so loop to deplete
1941 // nodes[0]'s wealth
1943 let amt_msat = recv_value_0 + total_fee_msat;
1944 // 3 for the 3 HTLCs that will be sent, 2* and +1 for the fee spike reserve.
1945 // Also, ensure that each payment has enough to be over the dust limit to
1946 // ensure it'll be included in each commit tx fee calculation.
1947 let commit_tx_fee_all_htlcs = 2*commit_tx_fee_msat(feerate, 3 + 1);
1948 let ensure_htlc_amounts_above_dust_buffer = 3 * (stat01.their_dust_limit_msat + 1000);
1949 if stat01.value_to_self_msat < stat01.channel_reserve_msat + commit_tx_fee_all_htlcs + ensure_htlc_amounts_above_dust_buffer + amt_msat {
1952 send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_0, recv_value_0);
1954 let (stat01_, stat11_, stat12_, stat22_) = (
1955 get_channel_value_stat!(nodes[0], chan_1.2),
1956 get_channel_value_stat!(nodes[1], chan_1.2),
1957 get_channel_value_stat!(nodes[1], chan_2.2),
1958 get_channel_value_stat!(nodes[2], chan_2.2),
1961 assert_eq!(stat01_.value_to_self_msat, stat01.value_to_self_msat - amt_msat);
1962 assert_eq!(stat11_.value_to_self_msat, stat11.value_to_self_msat + amt_msat);
1963 assert_eq!(stat12_.value_to_self_msat, stat12.value_to_self_msat - (amt_msat - feemsat));
1964 assert_eq!(stat22_.value_to_self_msat, stat22.value_to_self_msat + (amt_msat - feemsat));
1965 stat01 = stat01_; stat11 = stat11_; stat12 = stat12_; stat22 = stat22_;
1968 // adding pending output.
1969 // 2* and +1 HTLCs on the commit tx fee for the fee spike reserve.
1970 // The reason we're dividing by two here is as follows: the dividend is the total outbound liquidity
1971 // after fees, the channel reserve, and the fee spike buffer are removed. We eventually want to
1972 // divide this quantity into 3 portions, that will each be sent in an HTLC. This allows us
1973 // to test channel channel reserve policy at the edges of what amount is sendable, i.e.
1974 // cases where 1 msat over X amount will cause a payment failure, but anything less than
1975 // that can be sent successfully. So, dividing by two is a somewhat arbitrary way of getting
1976 // the amount of the first of these aforementioned 3 payments. The reason we split into 3 payments
1977 // is to test the behavior of the holding cell with respect to channel reserve and commit tx fee
1979 let commit_tx_fee_2_htlcs = 2*commit_tx_fee_msat(feerate, 2 + 1);
1980 let recv_value_1 = (stat01.value_to_self_msat - stat01.channel_reserve_msat - total_fee_msat - commit_tx_fee_2_htlcs)/2;
1981 let amt_msat_1 = recv_value_1 + total_fee_msat;
1983 let (route_1, our_payment_hash_1, our_payment_preimage_1) = get_route_and_payment_hash!(recv_value_1);
1984 let payment_event_1 = {
1985 nodes[0].node.send_payment(&route_1, our_payment_hash_1, &None).unwrap();
1986 check_added_monitors!(nodes[0], 1);
1988 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
1989 assert_eq!(events.len(), 1);
1990 SendEvent::from_event(events.remove(0))
1992 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event_1.msgs[0]);
1994 // channel reserve test with htlc pending output > 0
1995 let recv_value_2 = stat01.value_to_self_msat - amt_msat_1 - stat01.channel_reserve_msat - total_fee_msat - commit_tx_fee_2_htlcs;
1997 let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_2 + 1);
1998 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1999 assert!(regex::Regex::new(r"Cannot send value that would put us under local channel reserve value \(\d+\)").unwrap().is_match(err)));
2000 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
2003 // split the rest to test holding cell
2004 let commit_tx_fee_3_htlcs = 2*commit_tx_fee_msat(feerate, 3 + 1);
2005 let additional_htlc_cost_msat = commit_tx_fee_3_htlcs - commit_tx_fee_2_htlcs;
2006 let recv_value_21 = recv_value_2/2 - additional_htlc_cost_msat/2;
2007 let recv_value_22 = recv_value_2 - recv_value_21 - total_fee_msat - additional_htlc_cost_msat;
2009 let stat = get_channel_value_stat!(nodes[0], chan_1.2);
2010 assert_eq!(stat.value_to_self_msat - (stat.pending_outbound_htlcs_amount_msat + recv_value_21 + recv_value_22 + total_fee_msat + total_fee_msat + commit_tx_fee_3_htlcs), stat.channel_reserve_msat);
2013 // now see if they go through on both sides
2014 let (route_21, our_payment_hash_21, our_payment_preimage_21) = get_route_and_payment_hash!(recv_value_21);
2015 // but this will stuck in the holding cell
2016 nodes[0].node.send_payment(&route_21, our_payment_hash_21, &None).unwrap();
2017 check_added_monitors!(nodes[0], 0);
2018 let events = nodes[0].node.get_and_clear_pending_events();
2019 assert_eq!(events.len(), 0);
2021 // test with outbound holding cell amount > 0
2023 let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_22+1);
2024 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
2025 assert!(regex::Regex::new(r"Cannot send value that would put us under local channel reserve value \(\d+\)").unwrap().is_match(err)));
2026 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
2027 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put us under local channel reserve value".to_string(), 2);
2030 let (route_22, our_payment_hash_22, our_payment_preimage_22) = get_route_and_payment_hash!(recv_value_22);
2031 // this will also stuck in the holding cell
2032 nodes[0].node.send_payment(&route_22, our_payment_hash_22, &None).unwrap();
2033 check_added_monitors!(nodes[0], 0);
2034 assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
2035 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
2037 // flush the pending htlc
2038 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event_1.commitment_msg);
2039 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
2040 check_added_monitors!(nodes[1], 1);
2042 // the pending htlc should be promoted to committed
2043 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_revoke_and_ack);
2044 check_added_monitors!(nodes[0], 1);
2045 let commitment_update_2 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
2047 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &as_commitment_signed);
2048 let bs_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
2049 // No commitment_signed so get_event_msg's assert(len == 1) passes
2050 check_added_monitors!(nodes[0], 1);
2052 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &bs_revoke_and_ack);
2053 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
2054 check_added_monitors!(nodes[1], 1);
2056 expect_pending_htlcs_forwardable!(nodes[1]);
2058 let ref payment_event_11 = expect_forward!(nodes[1]);
2059 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_11.msgs[0]);
2060 commitment_signed_dance!(nodes[2], nodes[1], payment_event_11.commitment_msg, false);
2062 expect_pending_htlcs_forwardable!(nodes[2]);
2063 expect_payment_received!(nodes[2], our_payment_hash_1, recv_value_1);
2065 // flush the htlcs in the holding cell
2066 assert_eq!(commitment_update_2.update_add_htlcs.len(), 2);
2067 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &commitment_update_2.update_add_htlcs[0]);
2068 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &commitment_update_2.update_add_htlcs[1]);
2069 commitment_signed_dance!(nodes[1], nodes[0], &commitment_update_2.commitment_signed, false);
2070 expect_pending_htlcs_forwardable!(nodes[1]);
2072 let ref payment_event_3 = expect_forward!(nodes[1]);
2073 assert_eq!(payment_event_3.msgs.len(), 2);
2074 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_3.msgs[0]);
2075 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_3.msgs[1]);
2077 commitment_signed_dance!(nodes[2], nodes[1], &payment_event_3.commitment_msg, false);
2078 expect_pending_htlcs_forwardable!(nodes[2]);
2080 let events = nodes[2].node.get_and_clear_pending_events();
2081 assert_eq!(events.len(), 2);
2083 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
2084 assert_eq!(our_payment_hash_21, *payment_hash);
2085 assert_eq!(*payment_secret, None);
2086 assert_eq!(recv_value_21, amt);
2088 _ => panic!("Unexpected event"),
2091 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
2092 assert_eq!(our_payment_hash_22, *payment_hash);
2093 assert_eq!(None, *payment_secret);
2094 assert_eq!(recv_value_22, amt);
2096 _ => panic!("Unexpected event"),
2099 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_1, recv_value_1);
2100 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_21, recv_value_21);
2101 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_22, recv_value_22);
2103 let commit_tx_fee_0_htlcs = 2*commit_tx_fee_msat(feerate, 1);
2104 let recv_value_3 = commit_tx_fee_2_htlcs - commit_tx_fee_0_htlcs - total_fee_msat;
2106 let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_3 + 1);
2107 let err = nodes[0].node.send_payment(&route, our_payment_hash, &None).err().unwrap();
2109 PaymentSendFailure::AllFailedRetrySafe(ref fails) => {
2111 &APIError::ChannelUnavailable{ref err} =>
2112 assert!(regex::Regex::new(r"Cannot send value that would put us under local channel reserve value \(\d+\)").unwrap().is_match(err)),
2113 _ => panic!("Unexpected error variant"),
2116 _ => panic!("Unexpected error variant"),
2118 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
2119 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put us under local channel reserve value".to_string(), 3);
2122 send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_3, recv_value_3);
2124 let commit_tx_fee_1_htlc = 2*commit_tx_fee_msat(feerate, 1 + 1);
2125 let expected_value_to_self = stat01.value_to_self_msat - (recv_value_1 + total_fee_msat) - (recv_value_21 + total_fee_msat) - (recv_value_22 + total_fee_msat) - (recv_value_3 + total_fee_msat);
2126 let stat0 = get_channel_value_stat!(nodes[0], chan_1.2);
2127 assert_eq!(stat0.value_to_self_msat, expected_value_to_self);
2128 assert_eq!(stat0.value_to_self_msat, stat0.channel_reserve_msat + commit_tx_fee_1_htlc);
2130 let stat2 = get_channel_value_stat!(nodes[2], chan_2.2);
2131 assert_eq!(stat2.value_to_self_msat, stat22.value_to_self_msat + recv_value_1 + recv_value_21 + recv_value_22 + recv_value_3);
2135 fn channel_reserve_in_flight_removes() {
2136 // In cases where one side claims an HTLC, it thinks it has additional available funds that it
2137 // can send to its counterparty, but due to update ordering, the other side may not yet have
2138 // considered those HTLCs fully removed.
2139 // This tests that we don't count HTLCs which will not be included in the next remote
2140 // commitment transaction towards the reserve value (as it implies no commitment transaction
2141 // will be generated which violates the remote reserve value).
2142 // This was broken previously, and discovered by the chanmon_fail_consistency fuzz test.
2144 // * route two HTLCs from A to B (note that, at a high level, this test is checking that, when
2145 // you consider the values of both of these HTLCs, B may not send an HTLC back to A, but if
2146 // you only consider the value of the first HTLC, it may not),
2147 // * start routing a third HTLC from A to B,
2148 // * claim the first two HTLCs (though B will generate an update_fulfill for one, and put
2149 // the other claim in its holding cell, as it immediately goes into AwaitingRAA),
2150 // * deliver the first fulfill from B
2151 // * deliver the update_add and an RAA from A, resulting in B freeing the second holding cell
2153 // * deliver A's response CS and RAA.
2154 // This results in A having the second HTLC in AwaitingRemovedRemoteRevoke, but B having
2155 // removed it fully. B now has the push_msat plus the first two HTLCs in value.
2156 // * Now B happily sends another HTLC, potentially violating its reserve value from A's point
2157 // of view (if A counts the AwaitingRemovedRemoteRevoke HTLC).
2158 let chanmon_cfgs = create_chanmon_cfgs(2);
2159 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
2160 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
2161 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
2162 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2163 let logger = test_utils::TestLogger::new();
2165 let b_chan_values = get_channel_value_stat!(nodes[1], chan_1.2);
2166 // Route the first two HTLCs.
2167 let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], b_chan_values.channel_reserve_msat - b_chan_values.value_to_self_msat - 10000);
2168 let (payment_preimage_2, _) = route_payment(&nodes[0], &[&nodes[1]], 20000);
2170 // Start routing the third HTLC (this is just used to get everyone in the right state).
2171 let (payment_preimage_3, payment_hash_3) = get_payment_preimage_hash!(nodes[0]);
2173 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
2174 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
2175 nodes[0].node.send_payment(&route, payment_hash_3, &None).unwrap();
2176 check_added_monitors!(nodes[0], 1);
2177 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
2178 assert_eq!(events.len(), 1);
2179 SendEvent::from_event(events.remove(0))
2182 // Now claim both of the first two HTLCs on B's end, putting B in AwaitingRAA and generating an
2183 // initial fulfill/CS.
2184 assert!(nodes[1].node.claim_funds(payment_preimage_1, &None, b_chan_values.channel_reserve_msat - b_chan_values.value_to_self_msat - 10000));
2185 check_added_monitors!(nodes[1], 1);
2186 let bs_removes = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
2188 // This claim goes in B's holding cell, allowing us to have a pending B->A RAA which does not
2189 // remove the second HTLC when we send the HTLC back from B to A.
2190 assert!(nodes[1].node.claim_funds(payment_preimage_2, &None, 20000));
2191 check_added_monitors!(nodes[1], 1);
2192 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
2194 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_removes.update_fulfill_htlcs[0]);
2195 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_removes.commitment_signed);
2196 check_added_monitors!(nodes[0], 1);
2197 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
2198 expect_payment_sent!(nodes[0], payment_preimage_1);
2200 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_1.msgs[0]);
2201 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_1.commitment_msg);
2202 check_added_monitors!(nodes[1], 1);
2203 // B is already AwaitingRAA, so cant generate a CS here
2204 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
2206 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
2207 check_added_monitors!(nodes[1], 1);
2208 let bs_cs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
2210 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
2211 check_added_monitors!(nodes[0], 1);
2212 let as_cs = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
2214 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_cs.commitment_signed);
2215 check_added_monitors!(nodes[1], 1);
2216 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
2218 // The second HTLCis removed, but as A is in AwaitingRAA it can't generate a CS here, so the
2219 // RAA that B generated above doesn't fully resolve the second HTLC from A's point of view.
2220 // However, the RAA A generates here *does* fully resolve the HTLC from B's point of view (as A
2221 // can no longer broadcast a commitment transaction with it and B has the preimage so can go
2222 // on-chain as necessary).
2223 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_cs.update_fulfill_htlcs[0]);
2224 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_cs.commitment_signed);
2225 check_added_monitors!(nodes[0], 1);
2226 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
2227 expect_payment_sent!(nodes[0], payment_preimage_2);
2229 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
2230 check_added_monitors!(nodes[1], 1);
2231 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
2233 expect_pending_htlcs_forwardable!(nodes[1]);
2234 expect_payment_received!(nodes[1], payment_hash_3, 100000);
2236 // Note that as this RAA was generated before the delivery of the update_fulfill it shouldn't
2237 // resolve the second HTLC from A's point of view.
2238 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
2239 check_added_monitors!(nodes[0], 1);
2240 let as_cs = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
2242 // Now that B doesn't have the second RAA anymore, but A still does, send a payment from B back
2243 // to A to ensure that A doesn't count the almost-removed HTLC in update_add processing.
2244 let (payment_preimage_4, payment_hash_4) = get_payment_preimage_hash!(nodes[1]);
2246 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
2247 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &[], 10000, TEST_FINAL_CLTV, &logger).unwrap();
2248 nodes[1].node.send_payment(&route, payment_hash_4, &None).unwrap();
2249 check_added_monitors!(nodes[1], 1);
2250 let mut events = nodes[1].node.get_and_clear_pending_msg_events();
2251 assert_eq!(events.len(), 1);
2252 SendEvent::from_event(events.remove(0))
2255 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_2.msgs[0]);
2256 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_2.commitment_msg);
2257 check_added_monitors!(nodes[0], 1);
2258 let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
2260 // Now just resolve all the outstanding messages/HTLCs for completeness...
2262 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_cs.commitment_signed);
2263 check_added_monitors!(nodes[1], 1);
2264 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
2266 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
2267 check_added_monitors!(nodes[1], 1);
2269 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
2270 check_added_monitors!(nodes[0], 1);
2271 let as_cs = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
2273 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_cs.commitment_signed);
2274 check_added_monitors!(nodes[1], 1);
2275 let bs_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
2277 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_raa);
2278 check_added_monitors!(nodes[0], 1);
2280 expect_pending_htlcs_forwardable!(nodes[0]);
2281 expect_payment_received!(nodes[0], payment_hash_4, 10000);
2283 claim_payment(&nodes[1], &[&nodes[0]], payment_preimage_4, 10_000);
2284 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_3, 100_000);
2288 fn channel_monitor_network_test() {
2289 // Simple test which builds a network of ChannelManagers, connects them to each other, and
2290 // tests that ChannelMonitor is able to recover from various states.
2291 let chanmon_cfgs = create_chanmon_cfgs(5);
2292 let node_cfgs = create_node_cfgs(5, &chanmon_cfgs);
2293 let node_chanmgrs = create_node_chanmgrs(5, &node_cfgs, &[None, None, None, None, None]);
2294 let nodes = create_network(5, &node_cfgs, &node_chanmgrs);
2296 // Create some initial channels
2297 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2298 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
2299 let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known());
2300 let chan_4 = create_announced_chan_between_nodes(&nodes, 3, 4, InitFeatures::known(), InitFeatures::known());
2302 // Rebalance the network a bit by relaying one payment through all the channels...
2303 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000);
2304 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000);
2305 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000);
2306 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000);
2308 // Simple case with no pending HTLCs:
2309 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), true);
2310 check_added_monitors!(nodes[1], 1);
2312 let mut node_txn = test_txn_broadcast(&nodes[1], &chan_1, None, HTLCType::NONE);
2313 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2314 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![node_txn.drain(..).next().unwrap()] }, 1);
2315 check_added_monitors!(nodes[0], 1);
2316 test_txn_broadcast(&nodes[0], &chan_1, None, HTLCType::NONE);
2318 get_announce_close_broadcast_events(&nodes, 0, 1);
2319 assert_eq!(nodes[0].node.list_channels().len(), 0);
2320 assert_eq!(nodes[1].node.list_channels().len(), 1);
2322 // One pending HTLC is discarded by the force-close:
2323 let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 3000000).0;
2325 // Simple case of one pending HTLC to HTLC-Timeout
2326 nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), true);
2327 check_added_monitors!(nodes[1], 1);
2329 let mut node_txn = test_txn_broadcast(&nodes[1], &chan_2, None, HTLCType::TIMEOUT);
2330 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2331 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![node_txn.drain(..).next().unwrap()] }, 1);
2332 check_added_monitors!(nodes[2], 1);
2333 test_txn_broadcast(&nodes[2], &chan_2, None, HTLCType::NONE);
2335 get_announce_close_broadcast_events(&nodes, 1, 2);
2336 assert_eq!(nodes[1].node.list_channels().len(), 0);
2337 assert_eq!(nodes[2].node.list_channels().len(), 1);
2339 macro_rules! claim_funds {
2340 ($node: expr, $prev_node: expr, $preimage: expr, $amount: expr) => {
2342 assert!($node.node.claim_funds($preimage, &None, $amount));
2343 check_added_monitors!($node, 1);
2345 let events = $node.node.get_and_clear_pending_msg_events();
2346 assert_eq!(events.len(), 1);
2348 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, .. } } => {
2349 assert!(update_add_htlcs.is_empty());
2350 assert!(update_fail_htlcs.is_empty());
2351 assert_eq!(*node_id, $prev_node.node.get_our_node_id());
2353 _ => panic!("Unexpected event"),
2359 // nodes[3] gets the preimage, but nodes[2] already disconnected, resulting in a nodes[2]
2360 // HTLC-Timeout and a nodes[3] claim against it (+ its own announces)
2361 nodes[2].node.peer_disconnected(&nodes[3].node.get_our_node_id(), true);
2362 check_added_monitors!(nodes[2], 1);
2363 let node2_commitment_txid;
2365 let node_txn = test_txn_broadcast(&nodes[2], &chan_3, None, HTLCType::TIMEOUT);
2366 node2_commitment_txid = node_txn[0].txid();
2368 // Claim the payment on nodes[3], giving it knowledge of the preimage
2369 claim_funds!(nodes[3], nodes[2], payment_preimage_1, 3_000_000);
2371 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2372 nodes[3].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone()] }, 1);
2373 check_added_monitors!(nodes[3], 1);
2375 check_preimage_claim(&nodes[3], &node_txn);
2377 get_announce_close_broadcast_events(&nodes, 2, 3);
2378 assert_eq!(nodes[2].node.list_channels().len(), 0);
2379 assert_eq!(nodes[3].node.list_channels().len(), 1);
2381 { // Cheat and reset nodes[4]'s height to 1
2382 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2383 nodes[4].block_notifier.block_connected(&Block { header, txdata: vec![] }, 1);
2386 assert_eq!(nodes[3].node.latest_block_height.load(Ordering::Acquire), 1);
2387 assert_eq!(nodes[4].node.latest_block_height.load(Ordering::Acquire), 1);
2388 // One pending HTLC to time out:
2389 let payment_preimage_2 = route_payment(&nodes[3], &vec!(&nodes[4])[..], 3000000).0;
2390 // CLTV expires at TEST_FINAL_CLTV + 1 (current height) + 1 (added in send_payment for
2394 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2395 nodes[3].block_notifier.block_connected_checked(&header, 2, &Vec::new()[..], &[0; 0]);
2396 for i in 3..TEST_FINAL_CLTV + 2 + LATENCY_GRACE_PERIOD_BLOCKS + 1 {
2397 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2398 nodes[3].block_notifier.block_connected_checked(&header, i, &Vec::new()[..], &[0; 0]);
2400 check_added_monitors!(nodes[3], 1);
2402 // Clear bumped claiming txn spending node 2 commitment tx. Bumped txn are generated after reaching some height timer.
2404 let mut node_txn = nodes[3].tx_broadcaster.txn_broadcasted.lock().unwrap();
2405 node_txn.retain(|tx| {
2406 if tx.input[0].previous_output.txid == node2_commitment_txid {
2412 let node_txn = test_txn_broadcast(&nodes[3], &chan_4, None, HTLCType::TIMEOUT);
2414 // Claim the payment on nodes[4], giving it knowledge of the preimage
2415 claim_funds!(nodes[4], nodes[3], payment_preimage_2, 3_000_000);
2417 header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2419 nodes[4].block_notifier.block_connected_checked(&header, 2, &Vec::new()[..], &[0; 0]);
2420 for i in 3..TEST_FINAL_CLTV + 2 - CLTV_CLAIM_BUFFER + 1 {
2421 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2422 nodes[4].block_notifier.block_connected_checked(&header, i, &Vec::new()[..], &[0; 0]);
2425 check_added_monitors!(nodes[4], 1);
2426 test_txn_broadcast(&nodes[4], &chan_4, None, HTLCType::SUCCESS);
2428 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2429 nodes[4].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone()] }, TEST_FINAL_CLTV - 5);
2431 check_preimage_claim(&nodes[4], &node_txn);
2433 get_announce_close_broadcast_events(&nodes, 3, 4);
2434 assert_eq!(nodes[3].node.list_channels().len(), 0);
2435 assert_eq!(nodes[4].node.list_channels().len(), 0);
2439 fn test_justice_tx() {
2440 // Test justice txn built on revoked HTLC-Success tx, against both sides
2441 let mut alice_config = UserConfig::default();
2442 alice_config.channel_options.announced_channel = true;
2443 alice_config.peer_channel_config_limits.force_announced_channel_preference = false;
2444 alice_config.own_channel_config.our_to_self_delay = 6 * 24 * 5;
2445 let mut bob_config = UserConfig::default();
2446 bob_config.channel_options.announced_channel = true;
2447 bob_config.peer_channel_config_limits.force_announced_channel_preference = false;
2448 bob_config.own_channel_config.our_to_self_delay = 6 * 24 * 3;
2449 let user_cfgs = [Some(alice_config), Some(bob_config)];
2450 let chanmon_cfgs = create_chanmon_cfgs(2);
2451 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
2452 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &user_cfgs);
2453 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
2454 // Create some new channels:
2455 let chan_5 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2457 // A pending HTLC which will be revoked:
2458 let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
2459 // Get the will-be-revoked local txn from nodes[0]
2460 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_5.2);
2461 assert_eq!(revoked_local_txn.len(), 2); // First commitment tx, then HTLC tx
2462 assert_eq!(revoked_local_txn[0].input.len(), 1);
2463 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_5.3.txid());
2464 assert_eq!(revoked_local_txn[0].output.len(), 2); // Only HTLC and output back to 0 are present
2465 assert_eq!(revoked_local_txn[1].input.len(), 1);
2466 assert_eq!(revoked_local_txn[1].input[0].previous_output.txid, revoked_local_txn[0].txid());
2467 assert_eq!(revoked_local_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC-Timeout
2468 // Revoke the old state
2469 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3, 3_000_000);
2472 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2473 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2475 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
2476 assert_eq!(node_txn.len(), 2); // ChannelMonitor: penalty tx, ChannelManager: local commitment tx
2477 assert_eq!(node_txn[0].input.len(), 2); // We should claim the revoked output and the HTLC output
2479 check_spends!(node_txn[0], revoked_local_txn[0]);
2480 node_txn.swap_remove(0);
2481 node_txn.truncate(1);
2483 check_added_monitors!(nodes[1], 1);
2484 test_txn_broadcast(&nodes[1], &chan_5, None, HTLCType::NONE);
2486 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2487 // Verify broadcast of revoked HTLC-timeout
2488 let node_txn = test_txn_broadcast(&nodes[0], &chan_5, Some(revoked_local_txn[0].clone()), HTLCType::TIMEOUT);
2489 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2490 check_added_monitors!(nodes[0], 1);
2491 // Broadcast revoked HTLC-timeout on node 1
2492 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[1].clone()] }, 1);
2493 test_revoked_htlc_claim_txn_broadcast(&nodes[1], node_txn[1].clone(), revoked_local_txn[0].clone());
2495 get_announce_close_broadcast_events(&nodes, 0, 1);
2497 assert_eq!(nodes[0].node.list_channels().len(), 0);
2498 assert_eq!(nodes[1].node.list_channels().len(), 0);
2500 // We test justice_tx build by A on B's revoked HTLC-Success tx
2501 // Create some new channels:
2502 let chan_6 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2504 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
2508 // A pending HTLC which will be revoked:
2509 let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
2510 // Get the will-be-revoked local txn from B
2511 let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan_6.2);
2512 assert_eq!(revoked_local_txn.len(), 1); // Only commitment tx
2513 assert_eq!(revoked_local_txn[0].input.len(), 1);
2514 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_6.3.txid());
2515 assert_eq!(revoked_local_txn[0].output.len(), 2); // Only HTLC and output back to A are present
2516 // Revoke the old state
2517 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_4, 3_000_000);
2519 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2520 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2522 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
2523 assert_eq!(node_txn.len(), 2); //ChannelMonitor: penalty tx, ChannelManager: local commitment tx
2524 assert_eq!(node_txn[0].input.len(), 1); // We claim the received HTLC output
2526 check_spends!(node_txn[0], revoked_local_txn[0]);
2527 node_txn.swap_remove(0);
2529 check_added_monitors!(nodes[0], 1);
2530 test_txn_broadcast(&nodes[0], &chan_6, None, HTLCType::NONE);
2532 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2533 let node_txn = test_txn_broadcast(&nodes[1], &chan_6, Some(revoked_local_txn[0].clone()), HTLCType::SUCCESS);
2534 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2535 check_added_monitors!(nodes[1], 1);
2536 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[1].clone()] }, 1);
2537 test_revoked_htlc_claim_txn_broadcast(&nodes[0], node_txn[1].clone(), revoked_local_txn[0].clone());
2539 get_announce_close_broadcast_events(&nodes, 0, 1);
2540 assert_eq!(nodes[0].node.list_channels().len(), 0);
2541 assert_eq!(nodes[1].node.list_channels().len(), 0);
2545 fn revoked_output_claim() {
2546 // Simple test to ensure a node will claim a revoked output when a stale remote commitment
2547 // transaction is broadcast by its counterparty
2548 let chanmon_cfgs = create_chanmon_cfgs(2);
2549 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
2550 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
2551 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
2552 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2553 // node[0] is gonna to revoke an old state thus node[1] should be able to claim the revoked output
2554 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
2555 assert_eq!(revoked_local_txn.len(), 1);
2556 // Only output is the full channel value back to nodes[0]:
2557 assert_eq!(revoked_local_txn[0].output.len(), 1);
2558 // Send a payment through, updating everyone's latest commitment txn
2559 send_payment(&nodes[0], &vec!(&nodes[1])[..], 5000000, 5_000_000);
2561 // Inform nodes[1] that nodes[0] broadcast a stale tx
2562 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2563 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2564 check_added_monitors!(nodes[1], 1);
2565 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
2566 assert_eq!(node_txn.len(), 2); // ChannelMonitor: justice tx against revoked to_local output, ChannelManager: local commitment tx
2568 check_spends!(node_txn[0], revoked_local_txn[0]);
2569 check_spends!(node_txn[1], chan_1.3);
2571 // Inform nodes[0] that a watchtower cheated on its behalf, so it will force-close the chan
2572 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2573 get_announce_close_broadcast_events(&nodes, 0, 1);
2574 check_added_monitors!(nodes[0], 1)
2578 fn claim_htlc_outputs_shared_tx() {
2579 // Node revoked old state, htlcs haven't time out yet, claim them in shared justice tx
2580 let chanmon_cfgs = create_chanmon_cfgs(2);
2581 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
2582 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
2583 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
2585 // Create some new channel:
2586 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2588 // Rebalance the network to generate htlc in the two directions
2589 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
2590 // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx
2591 let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
2592 let (_payment_preimage_2, payment_hash_2) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000);
2594 // Get the will-be-revoked local txn from node[0]
2595 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
2596 assert_eq!(revoked_local_txn.len(), 2); // commitment tx + 1 HTLC-Timeout tx
2597 assert_eq!(revoked_local_txn[0].input.len(), 1);
2598 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
2599 assert_eq!(revoked_local_txn[1].input.len(), 1);
2600 assert_eq!(revoked_local_txn[1].input[0].previous_output.txid, revoked_local_txn[0].txid());
2601 assert_eq!(revoked_local_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC-Timeout
2602 check_spends!(revoked_local_txn[1], revoked_local_txn[0]);
2604 //Revoke the old state
2605 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1, 3_000_000);
2608 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2609 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2610 check_added_monitors!(nodes[0], 1);
2611 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
2612 check_added_monitors!(nodes[1], 1);
2613 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
2614 expect_payment_failed!(nodes[1], payment_hash_2, true);
2616 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
2617 assert_eq!(node_txn.len(), 3); // ChannelMonitor: penalty tx, ChannelManager: local commitment + HTLC-timeout
2619 assert_eq!(node_txn[0].input.len(), 3); // Claim the revoked output + both revoked HTLC outputs
2620 check_spends!(node_txn[0], revoked_local_txn[0]);
2622 let mut witness_lens = BTreeSet::new();
2623 witness_lens.insert(node_txn[0].input[0].witness.last().unwrap().len());
2624 witness_lens.insert(node_txn[0].input[1].witness.last().unwrap().len());
2625 witness_lens.insert(node_txn[0].input[2].witness.last().unwrap().len());
2626 assert_eq!(witness_lens.len(), 3);
2627 assert_eq!(*witness_lens.iter().skip(0).next().unwrap(), 77); // revoked to_local
2628 assert_eq!(*witness_lens.iter().skip(1).next().unwrap(), OFFERED_HTLC_SCRIPT_WEIGHT); // revoked offered HTLC
2629 assert_eq!(*witness_lens.iter().skip(2).next().unwrap(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // revoked received HTLC
2631 // Next nodes[1] broadcasts its current local tx state:
2632 assert_eq!(node_txn[1].input.len(), 1);
2633 assert_eq!(node_txn[1].input[0].previous_output.txid, chan_1.3.txid()); //Spending funding tx unique txouput, tx broadcasted by ChannelManager
2635 assert_eq!(node_txn[2].input.len(), 1);
2636 let witness_script = node_txn[2].clone().input[0].witness.pop().unwrap();
2637 assert_eq!(witness_script.len(), OFFERED_HTLC_SCRIPT_WEIGHT); //Spending an offered htlc output
2638 assert_eq!(node_txn[2].input[0].previous_output.txid, node_txn[1].txid());
2639 assert_ne!(node_txn[2].input[0].previous_output.txid, node_txn[0].input[0].previous_output.txid);
2640 assert_ne!(node_txn[2].input[0].previous_output.txid, node_txn[0].input[1].previous_output.txid);
2642 get_announce_close_broadcast_events(&nodes, 0, 1);
2643 assert_eq!(nodes[0].node.list_channels().len(), 0);
2644 assert_eq!(nodes[1].node.list_channels().len(), 0);
2648 fn claim_htlc_outputs_single_tx() {
2649 // Node revoked old state, htlcs have timed out, claim each of them in separated justice tx
2650 let chanmon_cfgs = create_chanmon_cfgs(2);
2651 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
2652 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
2653 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
2655 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2657 // Rebalance the network to generate htlc in the two directions
2658 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
2659 // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx, but this
2660 // time as two different claim transactions as we're gonna to timeout htlc with given a high current height
2661 let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
2662 let (_payment_preimage_2, payment_hash_2) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000);
2664 // Get the will-be-revoked local txn from node[0]
2665 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
2667 //Revoke the old state
2668 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1, 3_000_000);
2671 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
2672 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 200);
2673 check_added_monitors!(nodes[0], 1);
2674 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 200);
2675 check_added_monitors!(nodes[1], 1);
2676 expect_pending_htlcs_forwardable_ignore!(nodes[0]);
2678 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 200, true, header.bitcoin_hash());
2679 expect_payment_failed!(nodes[1], payment_hash_2, true);
2681 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
2682 assert_eq!(node_txn.len(), 9);
2683 // ChannelMonitor: justice tx revoked offered htlc, justice tx revoked received htlc, justice tx revoked to_local (3)
2684 // ChannelManager: local commmitment + local HTLC-timeout (2)
2685 // ChannelMonitor: bumped justice tx, after one increase, bumps on HTLC aren't generated not being substantial anymore, bump on revoked to_local isn't generated due to more room for expiration (2)
2686 // ChannelMonitor: local commitment + local HTLC-timeout (2)
2688 // Check the pair local commitment and HTLC-timeout broadcast due to HTLC expiration
2689 assert_eq!(node_txn[2].input.len(), 1);
2690 check_spends!(node_txn[2], chan_1.3);
2691 assert_eq!(node_txn[3].input.len(), 1);
2692 let witness_script = node_txn[3].input[0].witness.last().unwrap();
2693 assert_eq!(witness_script.len(), OFFERED_HTLC_SCRIPT_WEIGHT); //Spending an offered htlc output
2694 check_spends!(node_txn[3], node_txn[2]);
2696 // Justice transactions are indices 1-2-4
2697 assert_eq!(node_txn[0].input.len(), 1);
2698 assert_eq!(node_txn[1].input.len(), 1);
2699 assert_eq!(node_txn[4].input.len(), 1);
2701 check_spends!(node_txn[0], revoked_local_txn[0]);
2702 check_spends!(node_txn[1], revoked_local_txn[0]);
2703 check_spends!(node_txn[4], revoked_local_txn[0]);
2705 let mut witness_lens = BTreeSet::new();
2706 witness_lens.insert(node_txn[0].input[0].witness.last().unwrap().len());
2707 witness_lens.insert(node_txn[1].input[0].witness.last().unwrap().len());
2708 witness_lens.insert(node_txn[4].input[0].witness.last().unwrap().len());
2709 assert_eq!(witness_lens.len(), 3);
2710 assert_eq!(*witness_lens.iter().skip(0).next().unwrap(), 77); // revoked to_local
2711 assert_eq!(*witness_lens.iter().skip(1).next().unwrap(), OFFERED_HTLC_SCRIPT_WEIGHT); // revoked offered HTLC
2712 assert_eq!(*witness_lens.iter().skip(2).next().unwrap(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // revoked received HTLC
2714 get_announce_close_broadcast_events(&nodes, 0, 1);
2715 assert_eq!(nodes[0].node.list_channels().len(), 0);
2716 assert_eq!(nodes[1].node.list_channels().len(), 0);
2720 fn test_htlc_on_chain_success() {
2721 // Test that in case of a unilateral close onchain, we detect the state of output thanks to
2722 // ChainWatchInterface and pass the preimage backward accordingly. So here we test that ChannelManager is
2723 // broadcasting the right event to other nodes in payment path.
2724 // We test with two HTLCs simultaneously as that was not handled correctly in the past.
2725 // A --------------------> B ----------------------> C (preimage)
2726 // First, C should claim the HTLC outputs via HTLC-Success when its own latest local
2727 // commitment transaction was broadcast.
2728 // Then, B should learn the preimage from said transactions, attempting to claim backwards
2730 // B should be able to claim via preimage if A then broadcasts its local tx.
2731 // Finally, when A sees B's latest local commitment transaction it should be able to claim
2732 // the HTLC outputs via the preimage it learned (which, once confirmed should generate a
2733 // PaymentSent event).
2735 let chanmon_cfgs = create_chanmon_cfgs(3);
2736 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
2737 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
2738 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
2740 // Create some initial channels
2741 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2742 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
2744 // Rebalance the network a bit by relaying one payment through all the channels...
2745 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
2746 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
2748 let (our_payment_preimage, _payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000);
2749 let (our_payment_preimage_2, _payment_hash_2) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000);
2750 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
2752 // Broadcast legit commitment tx from C on B's chain
2753 // Broadcast HTLC Success transaction by C on received output from C's commitment tx on B's chain
2754 let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2);
2755 assert_eq!(commitment_tx.len(), 1);
2756 check_spends!(commitment_tx[0], chan_2.3);
2757 nodes[2].node.claim_funds(our_payment_preimage, &None, 3_000_000);
2758 nodes[2].node.claim_funds(our_payment_preimage_2, &None, 3_000_000);
2759 check_added_monitors!(nodes[2], 2);
2760 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
2761 assert!(updates.update_add_htlcs.is_empty());
2762 assert!(updates.update_fail_htlcs.is_empty());
2763 assert!(updates.update_fail_malformed_htlcs.is_empty());
2764 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
2766 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1);
2767 check_closed_broadcast!(nodes[2], false);
2768 check_added_monitors!(nodes[2], 1);
2769 let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 3 (commitment tx, 2*htlc-success tx), ChannelMonitor : 2 (2 * HTLC-Success tx)
2770 assert_eq!(node_txn.len(), 5);
2771 assert_eq!(node_txn[0], node_txn[3]);
2772 assert_eq!(node_txn[1], node_txn[4]);
2773 assert_eq!(node_txn[2], commitment_tx[0]);
2774 check_spends!(node_txn[0], commitment_tx[0]);
2775 check_spends!(node_txn[1], commitment_tx[0]);
2776 assert_eq!(node_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
2777 assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
2778 assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
2779 assert!(node_txn[1].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
2780 assert_eq!(node_txn[0].lock_time, 0);
2781 assert_eq!(node_txn[1].lock_time, 0);
2783 // Verify that B's ChannelManager is able to extract preimage from HTLC Success tx and pass it backward
2784 nodes[1].block_notifier.block_connected(&Block { header, txdata: node_txn}, 1);
2786 let mut added_monitors = nodes[1].chan_monitor.added_monitors.lock().unwrap();
2787 assert_eq!(added_monitors.len(), 1);
2788 assert_eq!(added_monitors[0].0.txid, chan_2.3.txid());
2789 added_monitors.clear();
2791 let events = nodes[1].node.get_and_clear_pending_msg_events();
2793 let mut added_monitors = nodes[1].chan_monitor.added_monitors.lock().unwrap();
2794 assert_eq!(added_monitors.len(), 2);
2795 assert_eq!(added_monitors[0].0.txid, chan_1.3.txid());
2796 assert_eq!(added_monitors[1].0.txid, chan_1.3.txid());
2797 added_monitors.clear();
2799 assert_eq!(events.len(), 2);
2801 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
2802 _ => panic!("Unexpected event"),
2805 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, .. } } => {
2806 assert!(update_add_htlcs.is_empty());
2807 assert!(update_fail_htlcs.is_empty());
2808 assert_eq!(update_fulfill_htlcs.len(), 1);
2809 assert!(update_fail_malformed_htlcs.is_empty());
2810 assert_eq!(nodes[0].node.get_our_node_id(), *node_id);
2812 _ => panic!("Unexpected event"),
2814 macro_rules! check_tx_local_broadcast {
2815 ($node: expr, $htlc_offered: expr, $commitment_tx: expr, $chan_tx: expr) => { {
2816 let mut node_txn = $node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2817 assert_eq!(node_txn.len(), 5);
2818 // Node[1]: ChannelManager: 3 (commitment tx, 2*HTLC-Timeout tx), ChannelMonitor: 2 (timeout tx)
2819 // Node[0]: ChannelManager: 3 (commtiemtn tx, 2*HTLC-Timeout tx), ChannelMonitor: 2 HTLC-timeout
2820 check_spends!(node_txn[0], $commitment_tx);
2821 check_spends!(node_txn[1], $commitment_tx);
2822 assert_ne!(node_txn[0].lock_time, 0);
2823 assert_ne!(node_txn[1].lock_time, 0);
2825 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2826 assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2827 assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
2828 assert!(node_txn[1].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
2830 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
2831 assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
2832 assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
2833 assert!(node_txn[1].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
2835 check_spends!(node_txn[2], $chan_tx);
2836 check_spends!(node_txn[3], node_txn[2]);
2837 check_spends!(node_txn[4], node_txn[2]);
2838 assert_eq!(node_txn[2].input[0].witness.last().unwrap().len(), 71);
2839 assert_eq!(node_txn[3].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2840 assert_eq!(node_txn[4].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2841 assert!(node_txn[3].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
2842 assert!(node_txn[4].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
2843 assert_ne!(node_txn[3].lock_time, 0);
2844 assert_ne!(node_txn[4].lock_time, 0);
2848 // nodes[1] now broadcasts its own local state as a fallback, suggesting an alternate
2849 // commitment transaction with a corresponding HTLC-Timeout transactions, as well as a
2850 // timeout-claim of the output that nodes[2] just claimed via success.
2851 check_tx_local_broadcast!(nodes[1], false, commitment_tx[0], chan_2.3);
2853 // Broadcast legit commitment tx from A on B's chain
2854 // Broadcast preimage tx by B on offered output from A commitment tx on A's chain
2855 let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
2856 check_spends!(commitment_tx[0], chan_1.3);
2857 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1);
2858 check_closed_broadcast!(nodes[1], false);
2859 check_added_monitors!(nodes[1], 1);
2860 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 3 (commitment tx + HTLC-Sucess * 2), ChannelMonitor : 1 (HTLC-Success)
2861 assert_eq!(node_txn.len(), 4);
2862 check_spends!(node_txn[0], commitment_tx[0]);
2863 assert_eq!(node_txn[0].input.len(), 2);
2864 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2865 assert_eq!(node_txn[0].input[1].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2866 assert_eq!(node_txn[0].lock_time, 0);
2867 assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
2868 check_spends!(node_txn[1], chan_1.3);
2869 assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), 71);
2870 check_spends!(node_txn[2], node_txn[1]);
2871 check_spends!(node_txn[3], node_txn[1]);
2872 // We don't bother to check that B can claim the HTLC output on its commitment tx here as
2873 // we already checked the same situation with A.
2875 // Verify that A's ChannelManager is able to extract preimage from preimage tx and generate PaymentSent
2876 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone(), node_txn[0].clone()] }, 1);
2877 check_closed_broadcast!(nodes[0], false);
2878 check_added_monitors!(nodes[0], 1);
2879 let events = nodes[0].node.get_and_clear_pending_events();
2880 assert_eq!(events.len(), 2);
2881 let mut first_claimed = false;
2882 for event in events {
2884 Event::PaymentSent { payment_preimage } => {
2885 if payment_preimage == our_payment_preimage {
2886 assert!(!first_claimed);
2887 first_claimed = true;
2889 assert_eq!(payment_preimage, our_payment_preimage_2);
2892 _ => panic!("Unexpected event"),
2895 check_tx_local_broadcast!(nodes[0], true, commitment_tx[0], chan_1.3);
2899 fn test_htlc_on_chain_timeout() {
2900 // Test that in case of a unilateral close onchain, we detect the state of output thanks to
2901 // ChainWatchInterface and timeout the HTLC backward accordingly. So here we test that ChannelManager is
2902 // broadcasting the right event to other nodes in payment path.
2903 // A ------------------> B ----------------------> C (timeout)
2904 // B's commitment tx C's commitment tx
2906 // B's HTLC timeout tx B's timeout tx
2908 let chanmon_cfgs = create_chanmon_cfgs(3);
2909 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
2910 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
2911 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
2913 // Create some intial channels
2914 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
2915 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
2917 // Rebalance the network a bit by relaying one payment thorugh all the channels...
2918 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
2919 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
2921 let (_payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000);
2922 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
2924 // Broadcast legit commitment tx from C on B's chain
2925 let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2);
2926 check_spends!(commitment_tx[0], chan_2.3);
2927 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
2928 check_added_monitors!(nodes[2], 0);
2929 expect_pending_htlcs_forwardable!(nodes[2]);
2930 check_added_monitors!(nodes[2], 1);
2932 let events = nodes[2].node.get_and_clear_pending_msg_events();
2933 assert_eq!(events.len(), 1);
2935 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => {
2936 assert!(update_add_htlcs.is_empty());
2937 assert!(!update_fail_htlcs.is_empty());
2938 assert!(update_fulfill_htlcs.is_empty());
2939 assert!(update_fail_malformed_htlcs.is_empty());
2940 assert_eq!(nodes[1].node.get_our_node_id(), *node_id);
2942 _ => panic!("Unexpected event"),
2944 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1);
2945 check_closed_broadcast!(nodes[2], false);
2946 check_added_monitors!(nodes[2], 1);
2947 let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 1 (commitment tx)
2948 assert_eq!(node_txn.len(), 1);
2949 check_spends!(node_txn[0], chan_2.3);
2950 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), 71);
2952 // Broadcast timeout transaction by B on received output from C's commitment tx on B's chain
2953 // Verify that B's ChannelManager is able to detect that HTLC is timeout by its own tx and react backward in consequence
2954 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 200);
2957 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
2958 assert_eq!(node_txn.len(), 5); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 2 (local commitment tx + HTLC-timeout), 1 timeout tx
2959 assert_eq!(node_txn[1], node_txn[3]);
2960 assert_eq!(node_txn[2], node_txn[4]);
2962 check_spends!(node_txn[0], commitment_tx[0]);
2963 assert_eq!(node_txn[0].clone().input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
2965 check_spends!(node_txn[1], chan_2.3);
2966 check_spends!(node_txn[2], node_txn[1]);
2967 assert_eq!(node_txn[1].clone().input[0].witness.last().unwrap().len(), 71);
2968 assert_eq!(node_txn[2].clone().input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
2970 timeout_tx = node_txn[0].clone();
2974 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![timeout_tx]}, 1);
2975 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
2976 check_added_monitors!(nodes[1], 1);
2977 check_closed_broadcast!(nodes[1], false);
2979 expect_pending_htlcs_forwardable!(nodes[1]);
2980 check_added_monitors!(nodes[1], 1);
2981 let events = nodes[1].node.get_and_clear_pending_msg_events();
2982 assert_eq!(events.len(), 1);
2984 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, .. } } => {
2985 assert!(update_add_htlcs.is_empty());
2986 assert!(!update_fail_htlcs.is_empty());
2987 assert!(update_fulfill_htlcs.is_empty());
2988 assert!(update_fail_malformed_htlcs.is_empty());
2989 assert_eq!(nodes[0].node.get_our_node_id(), *node_id);
2991 _ => panic!("Unexpected event"),
2993 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // Well... here we detect our own htlc_timeout_tx so no tx to be generated
2994 assert_eq!(node_txn.len(), 0);
2996 // Broadcast legit commitment tx from B on A's chain
2997 let commitment_tx = get_local_commitment_txn!(nodes[1], chan_1.2);
2998 check_spends!(commitment_tx[0], chan_1.3);
3000 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 200);
3001 check_closed_broadcast!(nodes[0], false);
3002 check_added_monitors!(nodes[0], 1);
3003 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 1 timeout tx
3004 assert_eq!(node_txn.len(), 3);
3005 check_spends!(node_txn[0], commitment_tx[0]);
3006 assert_eq!(node_txn[0].clone().input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
3007 check_spends!(node_txn[1], chan_1.3);
3008 check_spends!(node_txn[2], node_txn[1]);
3009 assert_eq!(node_txn[1].clone().input[0].witness.last().unwrap().len(), 71);
3010 assert_eq!(node_txn[2].clone().input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
3014 fn test_simple_commitment_revoked_fail_backward() {
3015 // Test that in case of a revoked commitment tx, we detect the resolution of output by justice tx
3016 // and fail backward accordingly.
3018 let chanmon_cfgs = create_chanmon_cfgs(3);
3019 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
3020 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
3021 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
3023 // Create some initial channels
3024 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3025 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
3027 let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
3028 // Get the will-be-revoked local txn from nodes[2]
3029 let revoked_local_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
3030 // Revoke the old state
3031 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage, 3_000_000);
3033 let (_, payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
3035 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
3036 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
3037 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
3038 check_added_monitors!(nodes[1], 1);
3039 check_closed_broadcast!(nodes[1], false);
3041 expect_pending_htlcs_forwardable!(nodes[1]);
3042 check_added_monitors!(nodes[1], 1);
3043 let events = nodes[1].node.get_and_clear_pending_msg_events();
3044 assert_eq!(events.len(), 1);
3046 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, ref commitment_signed, .. } } => {
3047 assert!(update_add_htlcs.is_empty());
3048 assert_eq!(update_fail_htlcs.len(), 1);
3049 assert!(update_fulfill_htlcs.is_empty());
3050 assert!(update_fail_malformed_htlcs.is_empty());
3051 assert_eq!(nodes[0].node.get_our_node_id(), *node_id);
3053 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]);
3054 commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false, true);
3056 let events = nodes[0].node.get_and_clear_pending_msg_events();
3057 assert_eq!(events.len(), 1);
3059 MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
3060 _ => panic!("Unexpected event"),
3062 expect_payment_failed!(nodes[0], payment_hash, false);
3064 _ => panic!("Unexpected event"),
3068 fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use_dust: bool, no_to_remote: bool) {
3069 // Test that if our counterparty broadcasts a revoked commitment transaction we fail all
3070 // pending HTLCs on that channel backwards even if the HTLCs aren't present in our latest
3071 // commitment transaction anymore.
3072 // To do this, we have the peer which will broadcast a revoked commitment transaction send
3073 // a number of update_fail/commitment_signed updates without ever sending the RAA in
3074 // response to our commitment_signed. This is somewhat misbehavior-y, though not
3075 // technically disallowed and we should probably handle it reasonably.
3076 // Note that this is pretty exhaustive as an outbound HTLC which we haven't yet
3077 // failed/fulfilled backwards must be in at least one of the latest two remote commitment
3079 // * Once we move it out of our holding cell/add it, we will immediately include it in a
3080 // commitment_signed (implying it will be in the latest remote commitment transaction).
3081 // * Once they remove it, we will send a (the first) commitment_signed without the HTLC,
3082 // and once they revoke the previous commitment transaction (allowing us to send a new
3083 // commitment_signed) we will be free to fail/fulfill the HTLC backwards.
3084 let chanmon_cfgs = create_chanmon_cfgs(3);
3085 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
3086 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
3087 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
3089 // Create some initial channels
3090 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3091 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
3093 let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], if no_to_remote { 10_000 } else { 3_000_000 });
3094 // Get the will-be-revoked local txn from nodes[2]
3095 let revoked_local_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
3096 assert_eq!(revoked_local_txn[0].output.len(), if no_to_remote { 1 } else { 2 });
3097 // Revoke the old state
3098 claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage, if no_to_remote { 10_000 } else { 3_000_000});
3100 let value = if use_dust {
3101 // The dust limit applied to HTLC outputs considers the fee of the HTLC transaction as
3102 // well, so HTLCs at exactly the dust limit will not be included in commitment txn.
3103 nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().our_dust_limit_satoshis * 1000
3106 let (_, first_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
3107 let (_, second_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
3108 let (_, third_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
3110 assert!(nodes[2].node.fail_htlc_backwards(&first_payment_hash, &None));
3111 expect_pending_htlcs_forwardable!(nodes[2]);
3112 check_added_monitors!(nodes[2], 1);
3113 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
3114 assert!(updates.update_add_htlcs.is_empty());
3115 assert!(updates.update_fulfill_htlcs.is_empty());
3116 assert!(updates.update_fail_malformed_htlcs.is_empty());
3117 assert_eq!(updates.update_fail_htlcs.len(), 1);
3118 assert!(updates.update_fee.is_none());
3119 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
3120 let bs_raa = commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, false, true, false, true);
3121 // Drop the last RAA from 3 -> 2
3123 assert!(nodes[2].node.fail_htlc_backwards(&second_payment_hash, &None));
3124 expect_pending_htlcs_forwardable!(nodes[2]);
3125 check_added_monitors!(nodes[2], 1);
3126 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
3127 assert!(updates.update_add_htlcs.is_empty());
3128 assert!(updates.update_fulfill_htlcs.is_empty());
3129 assert!(updates.update_fail_malformed_htlcs.is_empty());
3130 assert_eq!(updates.update_fail_htlcs.len(), 1);
3131 assert!(updates.update_fee.is_none());
3132 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
3133 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &updates.commitment_signed);
3134 check_added_monitors!(nodes[1], 1);
3135 // Note that nodes[1] is in AwaitingRAA, so won't send a CS
3136 let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id());
3137 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa);
3138 check_added_monitors!(nodes[2], 1);
3140 assert!(nodes[2].node.fail_htlc_backwards(&third_payment_hash, &None));
3141 expect_pending_htlcs_forwardable!(nodes[2]);
3142 check_added_monitors!(nodes[2], 1);
3143 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
3144 assert!(updates.update_add_htlcs.is_empty());
3145 assert!(updates.update_fulfill_htlcs.is_empty());
3146 assert!(updates.update_fail_malformed_htlcs.is_empty());
3147 assert_eq!(updates.update_fail_htlcs.len(), 1);
3148 assert!(updates.update_fee.is_none());
3149 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
3150 // At this point first_payment_hash has dropped out of the latest two commitment
3151 // transactions that nodes[1] is tracking...
3152 nodes[1].node.handle_commitment_signed(&nodes[2].node.get_our_node_id(), &updates.commitment_signed);
3153 check_added_monitors!(nodes[1], 1);
3154 // Note that nodes[1] is (still) in AwaitingRAA, so won't send a CS
3155 let as_raa = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[2].node.get_our_node_id());
3156 nodes[2].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &as_raa);
3157 check_added_monitors!(nodes[2], 1);
3159 // Add a fourth HTLC, this one will get sequestered away in nodes[1]'s holding cell waiting
3160 // on nodes[2]'s RAA.
3161 let (_, fourth_payment_hash) = get_payment_preimage_hash!(nodes[0]);
3162 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
3163 let logger = test_utils::TestLogger::new();
3164 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
3165 nodes[1].node.send_payment(&route, fourth_payment_hash, &None).unwrap();
3166 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
3167 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
3168 check_added_monitors!(nodes[1], 0);
3171 nodes[1].node.handle_revoke_and_ack(&nodes[2].node.get_our_node_id(), &bs_raa);
3172 // One monitor for the new revocation preimage, no second on as we won't generate a new
3173 // commitment transaction for nodes[0] until process_pending_htlc_forwards().
3174 check_added_monitors!(nodes[1], 1);
3175 let events = nodes[1].node.get_and_clear_pending_events();
3176 assert_eq!(events.len(), 1);
3178 Event::PendingHTLCsForwardable { .. } => { },
3179 _ => panic!("Unexpected event"),
3181 // Deliberately don't process the pending fail-back so they all fail back at once after
3182 // block connection just like the !deliver_bs_raa case
3185 let mut failed_htlcs = HashSet::new();
3186 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
3188 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
3189 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
3190 check_added_monitors!(nodes[1], 1);
3191 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
3193 let events = nodes[1].node.get_and_clear_pending_events();
3194 assert_eq!(events.len(), if deliver_bs_raa { 1 } else { 2 });
3196 Event::PaymentFailed { ref payment_hash, .. } => {
3197 assert_eq!(*payment_hash, fourth_payment_hash);
3199 _ => panic!("Unexpected event"),
3201 if !deliver_bs_raa {
3203 Event::PendingHTLCsForwardable { .. } => { },
3204 _ => panic!("Unexpected event"),
3207 nodes[1].node.process_pending_htlc_forwards();
3208 check_added_monitors!(nodes[1], 1);
3210 let events = nodes[1].node.get_and_clear_pending_msg_events();
3211 assert_eq!(events.len(), if deliver_bs_raa { 3 } else { 2 });
3212 match events[if deliver_bs_raa { 1 } else { 0 }] {
3213 MessageSendEvent::BroadcastChannelUpdate { msg: msgs::ChannelUpdate { .. } } => {},
3214 _ => panic!("Unexpected event"),
3218 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, .. } } => {
3219 assert_eq!(nodes[2].node.get_our_node_id(), *node_id);
3220 assert_eq!(update_add_htlcs.len(), 1);
3221 assert!(update_fulfill_htlcs.is_empty());
3222 assert!(update_fail_htlcs.is_empty());
3223 assert!(update_fail_malformed_htlcs.is_empty());
3225 _ => panic!("Unexpected event"),
3228 match events[if deliver_bs_raa { 2 } else { 1 }] {
3229 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, ref commitment_signed, .. } } => {
3230 assert!(update_add_htlcs.is_empty());
3231 assert_eq!(update_fail_htlcs.len(), 3);
3232 assert!(update_fulfill_htlcs.is_empty());
3233 assert!(update_fail_malformed_htlcs.is_empty());
3234 assert_eq!(nodes[0].node.get_our_node_id(), *node_id);
3236 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]);
3237 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[1]);
3238 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[2]);
3240 commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false, true);
3242 let events = nodes[0].node.get_and_clear_pending_msg_events();
3243 // If we delivered B's RAA we got an unknown preimage error, not something
3244 // that we should update our routing table for.
3245 assert_eq!(events.len(), if deliver_bs_raa { 2 } else { 3 });
3246 for event in events {
3248 MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
3249 _ => panic!("Unexpected event"),
3252 let events = nodes[0].node.get_and_clear_pending_events();
3253 assert_eq!(events.len(), 3);
3255 Event::PaymentFailed { ref payment_hash, .. } => {
3256 assert!(failed_htlcs.insert(payment_hash.0));
3258 _ => panic!("Unexpected event"),
3261 Event::PaymentFailed { ref payment_hash, .. } => {
3262 assert!(failed_htlcs.insert(payment_hash.0));
3264 _ => panic!("Unexpected event"),
3267 Event::PaymentFailed { ref payment_hash, .. } => {
3268 assert!(failed_htlcs.insert(payment_hash.0));
3270 _ => panic!("Unexpected event"),
3273 _ => panic!("Unexpected event"),
3276 assert!(failed_htlcs.contains(&first_payment_hash.0));
3277 assert!(failed_htlcs.contains(&second_payment_hash.0));
3278 assert!(failed_htlcs.contains(&third_payment_hash.0));
3282 fn test_commitment_revoked_fail_backward_exhaustive_a() {
3283 do_test_commitment_revoked_fail_backward_exhaustive(false, true, false);
3284 do_test_commitment_revoked_fail_backward_exhaustive(true, true, false);
3285 do_test_commitment_revoked_fail_backward_exhaustive(false, false, false);
3286 do_test_commitment_revoked_fail_backward_exhaustive(true, false, false);
3290 fn test_commitment_revoked_fail_backward_exhaustive_b() {
3291 do_test_commitment_revoked_fail_backward_exhaustive(false, true, true);
3292 do_test_commitment_revoked_fail_backward_exhaustive(true, true, true);
3293 do_test_commitment_revoked_fail_backward_exhaustive(false, false, true);
3294 do_test_commitment_revoked_fail_backward_exhaustive(true, false, true);
3298 fn fail_backward_pending_htlc_upon_channel_failure() {
3299 let chanmon_cfgs = create_chanmon_cfgs(2);
3300 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
3301 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
3302 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
3303 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 500_000_000, InitFeatures::known(), InitFeatures::known());
3304 let logger = test_utils::TestLogger::new();
3306 // Alice -> Bob: Route a payment but without Bob sending revoke_and_ack.
3308 let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
3309 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3310 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &Vec::new(), 50_000, TEST_FINAL_CLTV, &logger).unwrap();
3311 nodes[0].node.send_payment(&route, payment_hash, &None).unwrap();
3312 check_added_monitors!(nodes[0], 1);
3314 let payment_event = {
3315 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
3316 assert_eq!(events.len(), 1);
3317 SendEvent::from_event(events.remove(0))
3319 assert_eq!(payment_event.node_id, nodes[1].node.get_our_node_id());
3320 assert_eq!(payment_event.msgs.len(), 1);
3323 // Alice -> Bob: Route another payment but now Alice waits for Bob's earlier revoke_and_ack.
3324 let (_, failed_payment_hash) = get_payment_preimage_hash!(nodes[0]);
3326 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3327 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &Vec::new(), 50_000, TEST_FINAL_CLTV, &logger).unwrap();
3328 nodes[0].node.send_payment(&route, failed_payment_hash, &None).unwrap();
3329 check_added_monitors!(nodes[0], 0);
3331 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
3334 // Alice <- Bob: Send a malformed update_add_htlc so Alice fails the channel.
3336 let (_, payment_hash) = get_payment_preimage_hash!(nodes[1]);
3338 let secp_ctx = Secp256k1::new();
3339 let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
3340 let current_height = nodes[1].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
3341 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
3342 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &Vec::new(), 50_000, TEST_FINAL_CLTV, &logger).unwrap();
3343 let (onion_payloads, _amount_msat, cltv_expiry) = onion_utils::build_onion_payloads(&route.paths[0], 50_000, &None, current_height).unwrap();
3344 let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
3345 let onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
3347 // Send a 0-msat update_add_htlc to fail the channel.
3348 let update_add_htlc = msgs::UpdateAddHTLC {
3354 onion_routing_packet,
3356 nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_htlc);
3359 // Check that Alice fails backward the pending HTLC from the second payment.
3360 expect_payment_failed!(nodes[0], failed_payment_hash, true);
3361 check_closed_broadcast!(nodes[0], true);
3362 check_added_monitors!(nodes[0], 1);
3366 fn test_htlc_ignore_latest_remote_commitment() {
3367 // Test that HTLC transactions spending the latest remote commitment transaction are simply
3368 // ignored if we cannot claim them. This originally tickled an invalid unwrap().
3369 let chanmon_cfgs = create_chanmon_cfgs(2);
3370 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
3371 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
3372 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
3373 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3375 route_payment(&nodes[0], &[&nodes[1]], 10000000);
3376 nodes[0].node.force_close_channel(&nodes[0].node.list_channels()[0].channel_id);
3377 check_closed_broadcast!(nodes[0], false);
3378 check_added_monitors!(nodes[0], 1);
3380 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
3381 assert_eq!(node_txn.len(), 2);
3383 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
3384 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone(), node_txn[1].clone()]}, 1);
3385 check_closed_broadcast!(nodes[1], false);
3386 check_added_monitors!(nodes[1], 1);
3388 // Duplicate the block_connected call since this may happen due to other listeners
3389 // registering new transactions
3390 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone(), node_txn[1].clone()]}, 1);
3394 fn test_force_close_fail_back() {
3395 // Check which HTLCs are failed-backwards on channel force-closure
3396 let chanmon_cfgs = create_chanmon_cfgs(3);
3397 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
3398 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
3399 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
3400 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3401 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
3402 let logger = test_utils::TestLogger::new();
3404 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
3406 let mut payment_event = {
3407 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3408 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, 42, &logger).unwrap();
3409 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
3410 check_added_monitors!(nodes[0], 1);
3412 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
3413 assert_eq!(events.len(), 1);
3414 SendEvent::from_event(events.remove(0))
3417 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
3418 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
3420 expect_pending_htlcs_forwardable!(nodes[1]);
3422 let mut events_2 = nodes[1].node.get_and_clear_pending_msg_events();
3423 assert_eq!(events_2.len(), 1);
3424 payment_event = SendEvent::from_event(events_2.remove(0));
3425 assert_eq!(payment_event.msgs.len(), 1);
3427 check_added_monitors!(nodes[1], 1);
3428 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
3429 nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event.commitment_msg);
3430 check_added_monitors!(nodes[2], 1);
3431 let (_, _) = get_revoke_commit_msgs!(nodes[2], nodes[1].node.get_our_node_id());
3433 // nodes[2] now has the latest commitment transaction, but hasn't revoked its previous
3434 // state or updated nodes[1]' state. Now force-close and broadcast that commitment/HTLC
3435 // transaction and ensure nodes[1] doesn't fail-backwards (this was originally a bug!).
3437 nodes[2].node.force_close_channel(&payment_event.commitment_msg.channel_id);
3438 check_closed_broadcast!(nodes[2], false);
3439 check_added_monitors!(nodes[2], 1);
3441 let mut node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap();
3442 // Note that we don't bother broadcasting the HTLC-Success transaction here as we don't
3443 // have a use for it unless nodes[2] learns the preimage somehow, the funds will go
3444 // back to nodes[1] upon timeout otherwise.
3445 assert_eq!(node_txn.len(), 1);
3449 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
3450 nodes[1].block_notifier.block_connected_checked(&header, 1, &[&tx], &[1]);
3452 // Note no UpdateHTLCs event here from nodes[1] to nodes[0]!
3453 check_closed_broadcast!(nodes[1], false);
3454 check_added_monitors!(nodes[1], 1);
3456 // Now check that if we add the preimage to ChannelMonitor it broadcasts our HTLC-Success..
3458 let mut monitors = nodes[2].chan_monitor.simple_monitor.monitors.lock().unwrap();
3459 monitors.get_mut(&OutPoint{ txid: Txid::from_slice(&payment_event.commitment_msg.channel_id[..]).unwrap(), index: 0 }).unwrap()
3460 .provide_payment_preimage(&our_payment_hash, &our_payment_preimage);
3462 nodes[2].block_notifier.block_connected_checked(&header, 1, &[&tx], &[1]);
3463 let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap();
3464 assert_eq!(node_txn.len(), 1);
3465 assert_eq!(node_txn[0].input.len(), 1);
3466 assert_eq!(node_txn[0].input[0].previous_output.txid, tx.txid());
3467 assert_eq!(node_txn[0].lock_time, 0); // Must be an HTLC-Success
3468 assert_eq!(node_txn[0].input[0].witness.len(), 5); // Must be an HTLC-Success
3470 check_spends!(node_txn[0], tx);
3474 fn test_unconf_chan() {
3475 // After creating a chan between nodes, we disconnect all blocks previously seen to force a channel close on nodes[0] side
3476 let chanmon_cfgs = create_chanmon_cfgs(2);
3477 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
3478 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
3479 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
3480 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3482 let channel_state = nodes[0].node.channel_state.lock().unwrap();
3483 assert_eq!(channel_state.by_id.len(), 1);
3484 assert_eq!(channel_state.short_to_id.len(), 1);
3485 mem::drop(channel_state);
3487 let mut headers = Vec::new();
3488 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
3489 headers.push(header.clone());
3491 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
3492 headers.push(header.clone());
3494 let mut height = 99;
3495 while !headers.is_empty() {
3496 nodes[0].node.block_disconnected(&headers.pop().unwrap(), height);
3499 check_closed_broadcast!(nodes[0], false);
3500 check_added_monitors!(nodes[0], 1);
3501 let channel_state = nodes[0].node.channel_state.lock().unwrap();
3502 assert_eq!(channel_state.by_id.len(), 0);
3503 assert_eq!(channel_state.short_to_id.len(), 0);
3507 fn test_simple_peer_disconnect() {
3508 // Test that we can reconnect when there are no lost messages
3509 let chanmon_cfgs = create_chanmon_cfgs(3);
3510 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
3511 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
3512 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
3513 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3514 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
3516 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3517 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3518 reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3520 let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0;
3521 let payment_hash_2 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1;
3522 fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_2);
3523 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_1, 1_000_000);
3525 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3526 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3527 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3529 let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0;
3530 let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0;
3531 let payment_hash_5 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1;
3532 let payment_hash_6 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1;
3534 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3535 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3537 claim_payment_along_route(&nodes[0], &vec!(&nodes[1], &nodes[2]), true, payment_preimage_3, 1_000_000);
3538 fail_payment_along_route(&nodes[0], &[&nodes[1], &nodes[2]], true, payment_hash_5);
3540 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (1, 0), (1, 0), (false, false));
3542 let events = nodes[0].node.get_and_clear_pending_events();
3543 assert_eq!(events.len(), 2);
3545 Event::PaymentSent { payment_preimage } => {
3546 assert_eq!(payment_preimage, payment_preimage_3);
3548 _ => panic!("Unexpected event"),
3551 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
3552 assert_eq!(payment_hash, payment_hash_5);
3553 assert!(rejected_by_dest);
3555 _ => panic!("Unexpected event"),
3559 claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_4, 1_000_000);
3560 fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_6);
3563 fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) {
3564 // Test that we can reconnect when in-flight HTLC updates get dropped
3565 let chanmon_cfgs = create_chanmon_cfgs(2);
3566 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
3567 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
3568 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
3569 if messages_delivered == 0 {
3570 create_chan_between_nodes_with_value_a(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known());
3571 // nodes[1] doesn't receive the funding_locked message (it'll be re-sent on reconnect)
3573 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3576 let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]);
3578 let logger = test_utils::TestLogger::new();
3579 let payment_event = {
3580 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3581 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(&nodes[0].node.list_usable_channels()), &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
3582 nodes[0].node.send_payment(&route, payment_hash_1, &None).unwrap();
3583 check_added_monitors!(nodes[0], 1);
3585 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
3586 assert_eq!(events.len(), 1);
3587 SendEvent::from_event(events.remove(0))
3589 assert_eq!(nodes[1].node.get_our_node_id(), payment_event.node_id);
3591 if messages_delivered < 2 {
3592 // Drop the payment_event messages, and let them get re-generated in reconnect_nodes!
3594 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
3595 if messages_delivered >= 3 {
3596 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &payment_event.commitment_msg);
3597 check_added_monitors!(nodes[1], 1);
3598 let (bs_revoke_and_ack, bs_commitment_signed) = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
3600 if messages_delivered >= 4 {
3601 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack);
3602 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
3603 check_added_monitors!(nodes[0], 1);
3605 if messages_delivered >= 5 {
3606 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_commitment_signed);
3607 let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
3608 // No commitment_signed so get_event_msg's assert(len == 1) passes
3609 check_added_monitors!(nodes[0], 1);
3611 if messages_delivered >= 6 {
3612 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack);
3613 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
3614 check_added_monitors!(nodes[1], 1);
3621 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3622 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3623 if messages_delivered < 3 {
3624 // Even if the funding_locked messages get exchanged, as long as nothing further was
3625 // received on either side, both sides will need to resend them.
3626 reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 1), (0, 0), (0, 0), (0, 0), (false, false));
3627 } else if messages_delivered == 3 {
3628 // nodes[0] still wants its RAA + commitment_signed
3629 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (-1, 0), (0, 0), (0, 0), (0, 0), (true, false));
3630 } else if messages_delivered == 4 {
3631 // nodes[0] still wants its commitment_signed
3632 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (-1, 0), (0, 0), (0, 0), (0, 0), (false, false));
3633 } else if messages_delivered == 5 {
3634 // nodes[1] still wants its final RAA
3635 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, true));
3636 } else if messages_delivered == 6 {
3637 // Everything was delivered...
3638 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3641 let events_1 = nodes[1].node.get_and_clear_pending_events();
3642 assert_eq!(events_1.len(), 1);
3644 Event::PendingHTLCsForwardable { .. } => { },
3645 _ => panic!("Unexpected event"),
3648 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3649 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3650 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3652 nodes[1].node.process_pending_htlc_forwards();
3654 let events_2 = nodes[1].node.get_and_clear_pending_events();
3655 assert_eq!(events_2.len(), 1);
3657 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
3658 assert_eq!(payment_hash_1, *payment_hash);
3659 assert_eq!(*payment_secret, None);
3660 assert_eq!(amt, 1000000);
3662 _ => panic!("Unexpected event"),
3665 nodes[1].node.claim_funds(payment_preimage_1, &None, 1_000_000);
3666 check_added_monitors!(nodes[1], 1);
3668 let events_3 = nodes[1].node.get_and_clear_pending_msg_events();
3669 assert_eq!(events_3.len(), 1);
3670 let (update_fulfill_htlc, commitment_signed) = match events_3[0] {
3671 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
3672 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
3673 assert!(updates.update_add_htlcs.is_empty());
3674 assert!(updates.update_fail_htlcs.is_empty());
3675 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
3676 assert!(updates.update_fail_malformed_htlcs.is_empty());
3677 assert!(updates.update_fee.is_none());
3678 (updates.update_fulfill_htlcs[0].clone(), updates.commitment_signed.clone())
3680 _ => panic!("Unexpected event"),
3683 if messages_delivered >= 1 {
3684 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlc);
3686 let events_4 = nodes[0].node.get_and_clear_pending_events();
3687 assert_eq!(events_4.len(), 1);
3689 Event::PaymentSent { ref payment_preimage } => {
3690 assert_eq!(payment_preimage_1, *payment_preimage);
3692 _ => panic!("Unexpected event"),
3695 if messages_delivered >= 2 {
3696 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &commitment_signed);
3697 check_added_monitors!(nodes[0], 1);
3698 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
3700 if messages_delivered >= 3 {
3701 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack);
3702 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
3703 check_added_monitors!(nodes[1], 1);
3705 if messages_delivered >= 4 {
3706 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_signed);
3707 let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
3708 // No commitment_signed so get_event_msg's assert(len == 1) passes
3709 check_added_monitors!(nodes[1], 1);
3711 if messages_delivered >= 5 {
3712 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack);
3713 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
3714 check_added_monitors!(nodes[0], 1);
3721 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3722 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3723 if messages_delivered < 2 {
3724 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (false, false));
3725 //TODO: Deduplicate PaymentSent events, then enable this if:
3726 //if messages_delivered < 1 {
3727 let events_4 = nodes[0].node.get_and_clear_pending_events();
3728 assert_eq!(events_4.len(), 1);
3730 Event::PaymentSent { ref payment_preimage } => {
3731 assert_eq!(payment_preimage_1, *payment_preimage);
3733 _ => panic!("Unexpected event"),
3736 } else if messages_delivered == 2 {
3737 // nodes[0] still wants its RAA + commitment_signed
3738 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (false, true));
3739 } else if messages_delivered == 3 {
3740 // nodes[0] still wants its commitment_signed
3741 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (false, false));
3742 } else if messages_delivered == 4 {
3743 // nodes[1] still wants its final RAA
3744 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (true, false));
3745 } else if messages_delivered == 5 {
3746 // Everything was delivered...
3747 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3750 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3751 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3752 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3754 // Channel should still work fine...
3755 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3756 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(&nodes[0].node.list_usable_channels()), &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
3757 let payment_preimage_2 = send_along_route(&nodes[0], route, &[&nodes[1]], 1000000).0;
3758 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2, 1_000_000);
3762 fn test_drop_messages_peer_disconnect_a() {
3763 do_test_drop_messages_peer_disconnect(0);
3764 do_test_drop_messages_peer_disconnect(1);
3765 do_test_drop_messages_peer_disconnect(2);
3766 do_test_drop_messages_peer_disconnect(3);
3770 fn test_drop_messages_peer_disconnect_b() {
3771 do_test_drop_messages_peer_disconnect(4);
3772 do_test_drop_messages_peer_disconnect(5);
3773 do_test_drop_messages_peer_disconnect(6);
3777 fn test_funding_peer_disconnect() {
3778 // Test that we can lock in our funding tx while disconnected
3779 let chanmon_cfgs = create_chanmon_cfgs(2);
3780 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
3781 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
3782 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
3783 let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known());
3785 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3786 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3788 confirm_transaction(&nodes[0].block_notifier, &nodes[0].chain_monitor, &tx, tx.version);
3789 let events_1 = nodes[0].node.get_and_clear_pending_msg_events();
3790 assert_eq!(events_1.len(), 1);
3792 MessageSendEvent::SendFundingLocked { ref node_id, msg: _ } => {
3793 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
3795 _ => panic!("Unexpected event"),
3798 reconnect_nodes(&nodes[0], &nodes[1], (false, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3800 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3801 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3803 confirm_transaction(&nodes[1].block_notifier, &nodes[1].chain_monitor, &tx, tx.version);
3804 let events_2 = nodes[1].node.get_and_clear_pending_msg_events();
3805 assert_eq!(events_2.len(), 2);
3806 let funding_locked = match events_2[0] {
3807 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
3808 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
3811 _ => panic!("Unexpected event"),
3813 let bs_announcement_sigs = match events_2[1] {
3814 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
3815 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
3818 _ => panic!("Unexpected event"),
3821 reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
3823 nodes[0].node.handle_funding_locked(&nodes[1].node.get_our_node_id(), &funding_locked);
3824 nodes[0].node.handle_announcement_signatures(&nodes[1].node.get_our_node_id(), &bs_announcement_sigs);
3825 let events_3 = nodes[0].node.get_and_clear_pending_msg_events();
3826 assert_eq!(events_3.len(), 2);
3827 let as_announcement_sigs = match events_3[0] {
3828 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
3829 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
3832 _ => panic!("Unexpected event"),
3834 let (as_announcement, as_update) = match events_3[1] {
3835 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
3836 (msg.clone(), update_msg.clone())
3838 _ => panic!("Unexpected event"),
3841 nodes[1].node.handle_announcement_signatures(&nodes[0].node.get_our_node_id(), &as_announcement_sigs);
3842 let events_4 = nodes[1].node.get_and_clear_pending_msg_events();
3843 assert_eq!(events_4.len(), 1);
3844 let (_, bs_update) = match events_4[0] {
3845 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
3846 (msg.clone(), update_msg.clone())
3848 _ => panic!("Unexpected event"),
3851 nodes[0].net_graph_msg_handler.handle_channel_announcement(&as_announcement).unwrap();
3852 nodes[0].net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
3853 nodes[0].net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
3855 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3856 let logger = test_utils::TestLogger::new();
3857 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
3858 let (payment_preimage, _) = send_along_route(&nodes[0], route, &[&nodes[1]], 1000000);
3859 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage, 1_000_000);
3863 fn test_drop_messages_peer_disconnect_dual_htlc() {
3864 // Test that we can handle reconnecting when both sides of a channel have pending
3865 // commitment_updates when we disconnect.
3866 let chanmon_cfgs = create_chanmon_cfgs(2);
3867 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
3868 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
3869 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
3870 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
3871 let logger = test_utils::TestLogger::new();
3873 let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
3875 // Now try to send a second payment which will fail to send
3876 let (payment_preimage_2, payment_hash_2) = get_payment_preimage_hash!(nodes[0]);
3877 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
3878 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
3879 nodes[0].node.send_payment(&route, payment_hash_2, &None).unwrap();
3880 check_added_monitors!(nodes[0], 1);
3882 let events_1 = nodes[0].node.get_and_clear_pending_msg_events();
3883 assert_eq!(events_1.len(), 1);
3885 MessageSendEvent::UpdateHTLCs { .. } => {},
3886 _ => panic!("Unexpected event"),
3889 assert!(nodes[1].node.claim_funds(payment_preimage_1, &None, 1_000_000));
3890 check_added_monitors!(nodes[1], 1);
3892 let events_2 = nodes[1].node.get_and_clear_pending_msg_events();
3893 assert_eq!(events_2.len(), 1);
3895 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
3896 assert_eq!(*node_id, nodes[0].node.get_our_node_id());
3897 assert!(update_add_htlcs.is_empty());
3898 assert_eq!(update_fulfill_htlcs.len(), 1);
3899 assert!(update_fail_htlcs.is_empty());
3900 assert!(update_fail_malformed_htlcs.is_empty());
3901 assert!(update_fee.is_none());
3903 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_htlcs[0]);
3904 let events_3 = nodes[0].node.get_and_clear_pending_events();
3905 assert_eq!(events_3.len(), 1);
3907 Event::PaymentSent { ref payment_preimage } => {
3908 assert_eq!(*payment_preimage, payment_preimage_1);
3910 _ => panic!("Unexpected event"),
3913 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), commitment_signed);
3914 let _ = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
3915 // No commitment_signed so get_event_msg's assert(len == 1) passes
3916 check_added_monitors!(nodes[0], 1);
3918 _ => panic!("Unexpected event"),
3921 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
3922 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
3924 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
3925 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
3926 assert_eq!(reestablish_1.len(), 1);
3927 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
3928 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
3929 assert_eq!(reestablish_2.len(), 1);
3931 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
3932 let as_resp = handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
3933 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
3934 let bs_resp = handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
3936 assert!(as_resp.0.is_none());
3937 assert!(bs_resp.0.is_none());
3939 assert!(bs_resp.1.is_none());
3940 assert!(bs_resp.2.is_none());
3942 assert!(as_resp.3 == RAACommitmentOrder::CommitmentFirst);
3944 assert_eq!(as_resp.2.as_ref().unwrap().update_add_htlcs.len(), 1);
3945 assert!(as_resp.2.as_ref().unwrap().update_fulfill_htlcs.is_empty());
3946 assert!(as_resp.2.as_ref().unwrap().update_fail_htlcs.is_empty());
3947 assert!(as_resp.2.as_ref().unwrap().update_fail_malformed_htlcs.is_empty());
3948 assert!(as_resp.2.as_ref().unwrap().update_fee.is_none());
3949 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &as_resp.2.as_ref().unwrap().update_add_htlcs[0]);
3950 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_resp.2.as_ref().unwrap().commitment_signed);
3951 let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
3952 // No commitment_signed so get_event_msg's assert(len == 1) passes
3953 check_added_monitors!(nodes[1], 1);
3955 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), as_resp.1.as_ref().unwrap());
3956 let bs_second_commitment_signed = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
3957 assert!(bs_second_commitment_signed.update_add_htlcs.is_empty());
3958 assert!(bs_second_commitment_signed.update_fulfill_htlcs.is_empty());
3959 assert!(bs_second_commitment_signed.update_fail_htlcs.is_empty());
3960 assert!(bs_second_commitment_signed.update_fail_malformed_htlcs.is_empty());
3961 assert!(bs_second_commitment_signed.update_fee.is_none());
3962 check_added_monitors!(nodes[1], 1);
3964 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack);
3965 let as_commitment_signed = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
3966 assert!(as_commitment_signed.update_add_htlcs.is_empty());
3967 assert!(as_commitment_signed.update_fulfill_htlcs.is_empty());
3968 assert!(as_commitment_signed.update_fail_htlcs.is_empty());
3969 assert!(as_commitment_signed.update_fail_malformed_htlcs.is_empty());
3970 assert!(as_commitment_signed.update_fee.is_none());
3971 check_added_monitors!(nodes[0], 1);
3973 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment_signed.commitment_signed);
3974 let as_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
3975 // No commitment_signed so get_event_msg's assert(len == 1) passes
3976 check_added_monitors!(nodes[0], 1);
3978 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_commitment_signed.commitment_signed);
3979 let bs_second_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
3980 // No commitment_signed so get_event_msg's assert(len == 1) passes
3981 check_added_monitors!(nodes[1], 1);
3983 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_and_ack);
3984 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
3985 check_added_monitors!(nodes[1], 1);
3987 expect_pending_htlcs_forwardable!(nodes[1]);
3989 let events_5 = nodes[1].node.get_and_clear_pending_events();
3990 assert_eq!(events_5.len(), 1);
3992 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt: _ } => {
3993 assert_eq!(payment_hash_2, *payment_hash);
3994 assert_eq!(*payment_secret, None);
3996 _ => panic!("Unexpected event"),
3999 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke_and_ack);
4000 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
4001 check_added_monitors!(nodes[0], 1);
4003 claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2, 1_000_000);
4006 fn do_test_htlc_timeout(send_partial_mpp: bool) {
4007 // If the user fails to claim/fail an HTLC within the HTLC CLTV timeout we fail it for them
4008 // to avoid our counterparty failing the channel.
4009 let chanmon_cfgs = create_chanmon_cfgs(2);
4010 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4011 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4012 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4014 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4015 let logger = test_utils::TestLogger::new();
4017 let our_payment_hash = if send_partial_mpp {
4018 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
4019 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
4020 let (_, our_payment_hash) = get_payment_preimage_hash!(&nodes[0]);
4021 let payment_secret = PaymentSecret([0xdb; 32]);
4022 // Use the utility function send_payment_along_path to send the payment with MPP data which
4023 // indicates there are more HTLCs coming.
4024 nodes[0].node.send_payment_along_path(&route.paths[0], &our_payment_hash, &Some(payment_secret), 200000, CHAN_CONFIRM_DEPTH).unwrap();
4025 check_added_monitors!(nodes[0], 1);
4026 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
4027 assert_eq!(events.len(), 1);
4028 // Now do the relevant commitment_signed/RAA dances along the path, noting that the final
4029 // hop should *not* yet generate any PaymentReceived event(s).
4030 pass_along_path(&nodes[0], &[&nodes[1]], 100000, our_payment_hash, Some(payment_secret), events.drain(..).next().unwrap(), false);
4033 route_payment(&nodes[0], &[&nodes[1]], 100000).1
4036 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4037 nodes[0].block_notifier.block_connected_checked(&header, 101, &[], &[]);
4038 nodes[1].block_notifier.block_connected_checked(&header, 101, &[], &[]);
4039 for i in 102..TEST_FINAL_CLTV + 100 + 1 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS {
4040 header.prev_blockhash = header.bitcoin_hash();
4041 nodes[0].block_notifier.block_connected_checked(&header, i, &[], &[]);
4042 nodes[1].block_notifier.block_connected_checked(&header, i, &[], &[]);
4045 expect_pending_htlcs_forwardable!(nodes[1]);
4047 check_added_monitors!(nodes[1], 1);
4048 let htlc_timeout_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
4049 assert!(htlc_timeout_updates.update_add_htlcs.is_empty());
4050 assert_eq!(htlc_timeout_updates.update_fail_htlcs.len(), 1);
4051 assert!(htlc_timeout_updates.update_fail_malformed_htlcs.is_empty());
4052 assert!(htlc_timeout_updates.update_fee.is_none());
4054 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &htlc_timeout_updates.update_fail_htlcs[0]);
4055 commitment_signed_dance!(nodes[0], nodes[1], htlc_timeout_updates.commitment_signed, false);
4056 // 100_000 msat as u64, followed by a height of 123 as u32
4057 let mut expected_failure_data = byte_utils::be64_to_array(100_000).to_vec();
4058 expected_failure_data.extend_from_slice(&byte_utils::be32_to_array(123));
4059 expect_payment_failed!(nodes[0], our_payment_hash, true, 0x4000 | 15, &expected_failure_data[..]);
4063 fn test_htlc_timeout() {
4064 do_test_htlc_timeout(true);
4065 do_test_htlc_timeout(false);
4068 fn do_test_holding_cell_htlc_add_timeouts(forwarded_htlc: bool) {
4069 // Tests that HTLCs in the holding cell are timed out after the requisite number of blocks.
4070 let chanmon_cfgs = create_chanmon_cfgs(3);
4071 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
4072 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
4073 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
4074 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4075 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
4076 let logger = test_utils::TestLogger::new();
4078 // Route a first payment to get the 1 -> 2 channel in awaiting_raa...
4079 let (_, first_payment_hash) = get_payment_preimage_hash!(nodes[0]);
4081 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
4082 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
4083 nodes[1].node.send_payment(&route, first_payment_hash, &None).unwrap();
4085 assert_eq!(nodes[1].node.get_and_clear_pending_msg_events().len(), 1);
4086 check_added_monitors!(nodes[1], 1);
4088 // Now attempt to route a second payment, which should be placed in the holding cell
4089 let (_, second_payment_hash) = get_payment_preimage_hash!(nodes[0]);
4091 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
4092 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
4093 nodes[0].node.send_payment(&route, second_payment_hash, &None).unwrap();
4094 check_added_monitors!(nodes[0], 1);
4095 let payment_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
4096 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
4097 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
4098 expect_pending_htlcs_forwardable!(nodes[1]);
4099 check_added_monitors!(nodes[1], 0);
4101 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
4102 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
4103 nodes[1].node.send_payment(&route, second_payment_hash, &None).unwrap();
4104 check_added_monitors!(nodes[1], 0);
4107 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4108 nodes[1].block_notifier.block_connected_checked(&header, 101, &[], &[]);
4109 for i in 102..TEST_FINAL_CLTV + 100 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS {
4110 header.prev_blockhash = header.bitcoin_hash();
4111 nodes[1].block_notifier.block_connected_checked(&header, i, &[], &[]);
4114 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
4115 assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
4117 header.prev_blockhash = header.bitcoin_hash();
4118 nodes[1].block_notifier.block_connected_checked(&header, TEST_FINAL_CLTV + 100 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS, &[], &[]);
4121 expect_pending_htlcs_forwardable!(nodes[1]);
4122 check_added_monitors!(nodes[1], 1);
4123 let fail_commit = nodes[1].node.get_and_clear_pending_msg_events();
4124 assert_eq!(fail_commit.len(), 1);
4125 match fail_commit[0] {
4126 MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fail_htlcs, ref commitment_signed, .. }, .. } => {
4127 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]);
4128 commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, true, true);
4130 _ => unreachable!(),
4132 expect_payment_failed!(nodes[0], second_payment_hash, false);
4133 if let &MessageSendEvent::PaymentFailureNetworkUpdate { ref update } = &nodes[0].node.get_and_clear_pending_msg_events()[0] {
4135 &HTLCFailChannelUpdate::ChannelUpdateMessage { .. } => {},
4136 _ => panic!("Unexpected event"),
4139 panic!("Unexpected event");
4142 expect_payment_failed!(nodes[1], second_payment_hash, true);
4147 fn test_holding_cell_htlc_add_timeouts() {
4148 do_test_holding_cell_htlc_add_timeouts(false);
4149 do_test_holding_cell_htlc_add_timeouts(true);
4153 fn test_invalid_channel_announcement() {
4154 //Test BOLT 7 channel_announcement msg requirement for final node, gather data to build customed channel_announcement msgs
4155 let secp_ctx = Secp256k1::new();
4156 let chanmon_cfgs = create_chanmon_cfgs(2);
4157 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4158 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4159 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4161 let chan_announcement = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
4163 let a_channel_lock = nodes[0].node.channel_state.lock().unwrap();
4164 let b_channel_lock = nodes[1].node.channel_state.lock().unwrap();
4165 let as_chan = a_channel_lock.by_id.get(&chan_announcement.3).unwrap();
4166 let bs_chan = b_channel_lock.by_id.get(&chan_announcement.3).unwrap();
4168 nodes[0].net_graph_msg_handler.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id : as_chan.get_short_channel_id().unwrap(), is_permanent: false } );
4170 let as_bitcoin_key = as_chan.get_local_keys().inner.local_channel_pubkeys.funding_pubkey;
4171 let bs_bitcoin_key = bs_chan.get_local_keys().inner.local_channel_pubkeys.funding_pubkey;
4173 let as_network_key = nodes[0].node.get_our_node_id();
4174 let bs_network_key = nodes[1].node.get_our_node_id();
4176 let were_node_one = as_bitcoin_key.serialize()[..] < bs_bitcoin_key.serialize()[..];
4178 let mut chan_announcement;
4180 macro_rules! dummy_unsigned_msg {
4182 msgs::UnsignedChannelAnnouncement {
4183 features: ChannelFeatures::known(),
4184 chain_hash: genesis_block(Network::Testnet).header.bitcoin_hash(),
4185 short_channel_id: as_chan.get_short_channel_id().unwrap(),
4186 node_id_1: if were_node_one { as_network_key } else { bs_network_key },
4187 node_id_2: if were_node_one { bs_network_key } else { as_network_key },
4188 bitcoin_key_1: if were_node_one { as_bitcoin_key } else { bs_bitcoin_key },
4189 bitcoin_key_2: if were_node_one { bs_bitcoin_key } else { as_bitcoin_key },
4190 excess_data: Vec::new(),
4195 macro_rules! sign_msg {
4196 ($unsigned_msg: expr) => {
4197 let msghash = Message::from_slice(&Sha256dHash::hash(&$unsigned_msg.encode()[..])[..]).unwrap();
4198 let as_bitcoin_sig = secp_ctx.sign(&msghash, &as_chan.get_local_keys().inner.funding_key);
4199 let bs_bitcoin_sig = secp_ctx.sign(&msghash, &bs_chan.get_local_keys().inner.funding_key);
4200 let as_node_sig = secp_ctx.sign(&msghash, &nodes[0].keys_manager.get_node_secret());
4201 let bs_node_sig = secp_ctx.sign(&msghash, &nodes[1].keys_manager.get_node_secret());
4202 chan_announcement = msgs::ChannelAnnouncement {
4203 node_signature_1 : if were_node_one { as_node_sig } else { bs_node_sig},
4204 node_signature_2 : if were_node_one { bs_node_sig } else { as_node_sig},
4205 bitcoin_signature_1: if were_node_one { as_bitcoin_sig } else { bs_bitcoin_sig },
4206 bitcoin_signature_2 : if were_node_one { bs_bitcoin_sig } else { as_bitcoin_sig },
4207 contents: $unsigned_msg
4212 let unsigned_msg = dummy_unsigned_msg!();
4213 sign_msg!(unsigned_msg);
4214 assert_eq!(nodes[0].net_graph_msg_handler.handle_channel_announcement(&chan_announcement).unwrap(), true);
4215 let _ = nodes[0].net_graph_msg_handler.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id : as_chan.get_short_channel_id().unwrap(), is_permanent: false } );
4217 // Configured with Network::Testnet
4218 let mut unsigned_msg = dummy_unsigned_msg!();
4219 unsigned_msg.chain_hash = genesis_block(Network::Bitcoin).header.bitcoin_hash();
4220 sign_msg!(unsigned_msg);
4221 assert!(nodes[0].net_graph_msg_handler.handle_channel_announcement(&chan_announcement).is_err());
4223 let mut unsigned_msg = dummy_unsigned_msg!();
4224 unsigned_msg.chain_hash = BlockHash::hash(&[1,2,3,4,5,6,7,8,9]);
4225 sign_msg!(unsigned_msg);
4226 assert!(nodes[0].net_graph_msg_handler.handle_channel_announcement(&chan_announcement).is_err());
4230 fn test_no_txn_manager_serialize_deserialize() {
4231 let chanmon_cfgs = create_chanmon_cfgs(2);
4232 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4233 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4234 let logger: test_utils::TestLogger;
4235 let fee_estimator: test_utils::TestFeeEstimator;
4236 let new_chan_monitor: test_utils::TestChannelMonitor;
4237 let keys_manager: test_utils::TestKeysInterface;
4238 let nodes_0_deserialized: ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
4239 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4241 let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known());
4243 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
4245 let nodes_0_serialized = nodes[0].node.encode();
4246 let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
4247 nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut chan_0_monitor_serialized).unwrap();
4249 logger = test_utils::TestLogger::new();
4250 fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
4251 new_chan_monitor = test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), &logger, &fee_estimator);
4252 nodes[0].chan_monitor = &new_chan_monitor;
4253 let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
4254 let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut chan_0_monitor_read).unwrap();
4255 assert!(chan_0_monitor_read.is_empty());
4257 let mut nodes_0_read = &nodes_0_serialized[..];
4258 let config = UserConfig::default();
4259 keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet);
4260 let (_, nodes_0_deserialized_tmp) = {
4261 let mut channel_monitors = HashMap::new();
4262 channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
4263 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
4264 default_config: config,
4265 keys_manager: &keys_manager,
4266 fee_estimator: &fee_estimator,
4267 monitor: nodes[0].chan_monitor,
4268 tx_broadcaster: nodes[0].tx_broadcaster.clone(),
4270 channel_monitors: &mut channel_monitors,
4273 nodes_0_deserialized = nodes_0_deserialized_tmp;
4274 assert!(nodes_0_read.is_empty());
4276 assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo().0, chan_0_monitor).is_ok());
4277 nodes[0].node = &nodes_0_deserialized;
4278 nodes[0].block_notifier.register_listener(nodes[0].node);
4279 assert_eq!(nodes[0].node.list_channels().len(), 1);
4280 check_added_monitors!(nodes[0], 1);
4282 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
4283 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
4284 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
4285 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
4287 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
4288 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
4289 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
4290 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
4292 let (funding_locked, _) = create_chan_between_nodes_with_value_confirm(&nodes[0], &nodes[1], &tx);
4293 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_locked);
4294 for node in nodes.iter() {
4295 assert!(node.net_graph_msg_handler.handle_channel_announcement(&announcement).unwrap());
4296 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
4297 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
4300 send_payment(&nodes[0], &[&nodes[1]], 1000000, 1_000_000);
4304 fn test_manager_serialize_deserialize_events() {
4305 // This test makes sure the events field in ChannelManager survives de/serialization
4306 let chanmon_cfgs = create_chanmon_cfgs(2);
4307 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4308 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4309 let fee_estimator: test_utils::TestFeeEstimator;
4310 let logger: test_utils::TestLogger;
4311 let new_chan_monitor: test_utils::TestChannelMonitor;
4312 let keys_manager: test_utils::TestKeysInterface;
4313 let nodes_0_deserialized: ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
4314 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4316 // Start creating a channel, but stop right before broadcasting the event message FundingBroadcastSafe
4317 let channel_value = 100000;
4318 let push_msat = 10001;
4319 let a_flags = InitFeatures::known();
4320 let b_flags = InitFeatures::known();
4321 let node_a = nodes.pop().unwrap();
4322 let node_b = nodes.pop().unwrap();
4323 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
4324 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id()));
4325 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id()));
4327 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(&node_a, channel_value, 42);
4329 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
4330 check_added_monitors!(node_a, 0);
4332 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id()));
4334 let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
4335 assert_eq!(added_monitors.len(), 1);
4336 assert_eq!(added_monitors[0].0, funding_output);
4337 added_monitors.clear();
4340 node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id()));
4342 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
4343 assert_eq!(added_monitors.len(), 1);
4344 assert_eq!(added_monitors[0].0, funding_output);
4345 added_monitors.clear();
4347 // Normally, this is where node_a would check for a FundingBroadcastSafe event, but the test de/serializes first instead
4352 // Start the de/seriailization process mid-channel creation to check that the channel manager will hold onto events that are serialized
4353 let nodes_0_serialized = nodes[0].node.encode();
4354 let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
4355 nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut chan_0_monitor_serialized).unwrap();
4357 fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
4358 logger = test_utils::TestLogger::new();
4359 new_chan_monitor = test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), &logger, &fee_estimator);
4360 nodes[0].chan_monitor = &new_chan_monitor;
4361 let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
4362 let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut chan_0_monitor_read).unwrap();
4363 assert!(chan_0_monitor_read.is_empty());
4365 let mut nodes_0_read = &nodes_0_serialized[..];
4366 let config = UserConfig::default();
4367 keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet);
4368 let (_, nodes_0_deserialized_tmp) = {
4369 let mut channel_monitors = HashMap::new();
4370 channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
4371 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
4372 default_config: config,
4373 keys_manager: &keys_manager,
4374 fee_estimator: &fee_estimator,
4375 monitor: nodes[0].chan_monitor,
4376 tx_broadcaster: nodes[0].tx_broadcaster.clone(),
4378 channel_monitors: &mut channel_monitors,
4381 nodes_0_deserialized = nodes_0_deserialized_tmp;
4382 assert!(nodes_0_read.is_empty());
4384 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
4386 assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo().0, chan_0_monitor).is_ok());
4387 nodes[0].node = &nodes_0_deserialized;
4389 // After deserializing, make sure the FundingBroadcastSafe event is still held by the channel manager
4390 let events_4 = nodes[0].node.get_and_clear_pending_events();
4391 assert_eq!(events_4.len(), 1);
4393 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
4394 assert_eq!(user_channel_id, 42);
4395 assert_eq!(*funding_txo, funding_output);
4397 _ => panic!("Unexpected event"),
4400 // Make sure the channel is functioning as though the de/serialization never happened
4401 nodes[0].block_notifier.register_listener(nodes[0].node);
4402 assert_eq!(nodes[0].node.list_channels().len(), 1);
4403 check_added_monitors!(nodes[0], 1);
4405 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
4406 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
4407 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
4408 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
4410 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
4411 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
4412 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
4413 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
4415 let (funding_locked, _) = create_chan_between_nodes_with_value_confirm(&nodes[0], &nodes[1], &tx);
4416 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_locked);
4417 for node in nodes.iter() {
4418 assert!(node.net_graph_msg_handler.handle_channel_announcement(&announcement).unwrap());
4419 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
4420 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
4423 send_payment(&nodes[0], &[&nodes[1]], 1000000, 1_000_000);
4427 fn test_simple_manager_serialize_deserialize() {
4428 let chanmon_cfgs = create_chanmon_cfgs(2);
4429 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4430 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4431 let logger: test_utils::TestLogger;
4432 let fee_estimator: test_utils::TestFeeEstimator;
4433 let new_chan_monitor: test_utils::TestChannelMonitor;
4434 let keys_manager: test_utils::TestKeysInterface;
4435 let nodes_0_deserialized: ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
4436 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4437 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4439 let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
4440 let (_, our_payment_hash) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
4442 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
4444 let nodes_0_serialized = nodes[0].node.encode();
4445 let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new());
4446 nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut chan_0_monitor_serialized).unwrap();
4448 logger = test_utils::TestLogger::new();
4449 fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
4450 new_chan_monitor = test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), &logger, &fee_estimator);
4451 nodes[0].chan_monitor = &new_chan_monitor;
4452 let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..];
4453 let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut chan_0_monitor_read).unwrap();
4454 assert!(chan_0_monitor_read.is_empty());
4456 let mut nodes_0_read = &nodes_0_serialized[..];
4457 keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet);
4458 let (_, nodes_0_deserialized_tmp) = {
4459 let mut channel_monitors = HashMap::new();
4460 channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor);
4461 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
4462 default_config: UserConfig::default(),
4463 keys_manager: &keys_manager,
4464 fee_estimator: &fee_estimator,
4465 monitor: nodes[0].chan_monitor,
4466 tx_broadcaster: nodes[0].tx_broadcaster.clone(),
4468 channel_monitors: &mut channel_monitors,
4471 nodes_0_deserialized = nodes_0_deserialized_tmp;
4472 assert!(nodes_0_read.is_empty());
4474 assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo().0, chan_0_monitor).is_ok());
4475 nodes[0].node = &nodes_0_deserialized;
4476 check_added_monitors!(nodes[0], 1);
4478 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
4480 fail_payment(&nodes[0], &[&nodes[1]], our_payment_hash);
4481 claim_payment(&nodes[0], &[&nodes[1]], our_payment_preimage, 1_000_000);
4485 fn test_manager_serialize_deserialize_inconsistent_monitor() {
4486 // Test deserializing a ChannelManager with an out-of-date ChannelMonitor
4487 let chanmon_cfgs = create_chanmon_cfgs(4);
4488 let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
4489 let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
4490 let logger: test_utils::TestLogger;
4491 let fee_estimator: test_utils::TestFeeEstimator;
4492 let new_chan_monitor: test_utils::TestChannelMonitor;
4493 let keys_manager: test_utils::TestKeysInterface;
4494 let nodes_0_deserialized: ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>;
4495 let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
4496 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4497 create_announced_chan_between_nodes(&nodes, 2, 0, InitFeatures::known(), InitFeatures::known());
4498 let (_, _, channel_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 3, InitFeatures::known(), InitFeatures::known());
4500 let mut node_0_stale_monitors_serialized = Vec::new();
4501 for monitor in nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter() {
4502 let mut writer = test_utils::TestVecWriter(Vec::new());
4503 monitor.1.write_for_disk(&mut writer).unwrap();
4504 node_0_stale_monitors_serialized.push(writer.0);
4507 let (our_payment_preimage, _) = route_payment(&nodes[2], &[&nodes[0], &nodes[1]], 1000000);
4509 // Serialize the ChannelManager here, but the monitor we keep up-to-date
4510 let nodes_0_serialized = nodes[0].node.encode();
4512 route_payment(&nodes[0], &[&nodes[3]], 1000000);
4513 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
4514 nodes[2].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
4515 nodes[3].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
4517 // Now the ChannelMonitor (which is now out-of-sync with ChannelManager for channel w/
4519 let mut node_0_monitors_serialized = Vec::new();
4520 for monitor in nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter() {
4521 let mut writer = test_utils::TestVecWriter(Vec::new());
4522 monitor.1.write_for_disk(&mut writer).unwrap();
4523 node_0_monitors_serialized.push(writer.0);
4526 logger = test_utils::TestLogger::new();
4527 fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
4528 new_chan_monitor = test_utils::TestChannelMonitor::new(nodes[0].chain_monitor.clone(), nodes[0].tx_broadcaster.clone(), &logger, &fee_estimator);
4529 nodes[0].chan_monitor = &new_chan_monitor;
4531 let mut node_0_stale_monitors = Vec::new();
4532 for serialized in node_0_stale_monitors_serialized.iter() {
4533 let mut read = &serialized[..];
4534 let (_, monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut read).unwrap();
4535 assert!(read.is_empty());
4536 node_0_stale_monitors.push(monitor);
4539 let mut node_0_monitors = Vec::new();
4540 for serialized in node_0_monitors_serialized.iter() {
4541 let mut read = &serialized[..];
4542 let (_, monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut read).unwrap();
4543 assert!(read.is_empty());
4544 node_0_monitors.push(monitor);
4547 keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet);
4549 let mut nodes_0_read = &nodes_0_serialized[..];
4550 if let Err(msgs::DecodeError::InvalidValue) =
4551 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
4552 default_config: UserConfig::default(),
4553 keys_manager: &keys_manager,
4554 fee_estimator: &fee_estimator,
4555 monitor: nodes[0].chan_monitor,
4556 tx_broadcaster: nodes[0].tx_broadcaster.clone(),
4558 channel_monitors: &mut node_0_stale_monitors.iter_mut().map(|monitor| { (monitor.get_funding_txo().0, monitor) }).collect(),
4560 panic!("If the monitor(s) are stale, this indicates a bug and we should get an Err return");
4563 let mut nodes_0_read = &nodes_0_serialized[..];
4564 let (_, nodes_0_deserialized_tmp) =
4565 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
4566 default_config: UserConfig::default(),
4567 keys_manager: &keys_manager,
4568 fee_estimator: &fee_estimator,
4569 monitor: nodes[0].chan_monitor,
4570 tx_broadcaster: nodes[0].tx_broadcaster.clone(),
4572 channel_monitors: &mut node_0_monitors.iter_mut().map(|monitor| { (monitor.get_funding_txo().0, monitor) }).collect(),
4574 nodes_0_deserialized = nodes_0_deserialized_tmp;
4575 assert!(nodes_0_read.is_empty());
4577 { // Channel close should result in a commitment tx and an HTLC tx
4578 let txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
4579 assert_eq!(txn.len(), 2);
4580 assert_eq!(txn[0].input[0].previous_output.txid, funding_tx.txid());
4581 assert_eq!(txn[1].input[0].previous_output.txid, txn[0].txid());
4584 for monitor in node_0_monitors.drain(..) {
4585 assert!(nodes[0].chan_monitor.add_monitor(monitor.get_funding_txo().0, monitor).is_ok());
4586 check_added_monitors!(nodes[0], 1);
4588 nodes[0].node = &nodes_0_deserialized;
4590 // nodes[1] and nodes[2] have no lost state with nodes[0]...
4591 reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
4592 reconnect_nodes(&nodes[0], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
4593 //... and we can even still claim the payment!
4594 claim_payment(&nodes[2], &[&nodes[0], &nodes[1]], our_payment_preimage, 1_000_000);
4596 nodes[3].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
4597 let reestablish = get_event_msg!(nodes[3], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id());
4598 nodes[0].node.peer_connected(&nodes[3].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
4599 nodes[0].node.handle_channel_reestablish(&nodes[3].node.get_our_node_id(), &reestablish);
4600 let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
4601 assert_eq!(msg_events.len(), 1);
4602 if let MessageSendEvent::HandleError { ref action, .. } = msg_events[0] {
4604 &ErrorAction::SendErrorMessage { ref msg } => {
4605 assert_eq!(msg.channel_id, channel_id);
4607 _ => panic!("Unexpected event!"),
4612 macro_rules! check_spendable_outputs {
4613 ($node: expr, $der_idx: expr, $keysinterface: expr, $chan_value: expr) => {
4615 let events = $node.chan_monitor.simple_monitor.get_and_clear_pending_events();
4616 let mut txn = Vec::new();
4617 for event in events {
4619 Event::SpendableOutputs { ref outputs } => {
4620 for outp in outputs {
4622 SpendableOutputDescriptor::StaticOutputRemotePayment { ref outpoint, ref output, ref key_derivation_params } => {
4624 previous_output: outpoint.clone(),
4625 script_sig: Script::new(),
4627 witness: Vec::new(),
4630 script_pubkey: Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(),
4631 value: output.value,
4633 let mut spend_tx = Transaction {
4639 let secp_ctx = Secp256k1::new();
4640 let keys = $keysinterface.derive_channel_keys($chan_value, key_derivation_params.0, key_derivation_params.1);
4641 let remotepubkey = keys.pubkeys().payment_point;
4642 let witness_script = Address::p2pkh(&::bitcoin::PublicKey{compressed: true, key: remotepubkey}, Network::Testnet).script_pubkey();
4643 let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
4644 let remotesig = secp_ctx.sign(&sighash, &keys.inner.payment_key);
4645 spend_tx.input[0].witness.push(remotesig.serialize_der().to_vec());
4646 spend_tx.input[0].witness[0].push(SigHashType::All as u8);
4647 spend_tx.input[0].witness.push(remotepubkey.serialize().to_vec());
4650 SpendableOutputDescriptor::DynamicOutputP2WSH { ref outpoint, ref per_commitment_point, ref to_self_delay, ref output, ref key_derivation_params, ref remote_revocation_pubkey } => {
4652 previous_output: outpoint.clone(),
4653 script_sig: Script::new(),
4654 sequence: *to_self_delay as u32,
4655 witness: Vec::new(),
4658 script_pubkey: Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(),
4659 value: output.value,
4661 let mut spend_tx = Transaction {
4667 let secp_ctx = Secp256k1::new();
4668 let keys = $keysinterface.derive_channel_keys($chan_value, key_derivation_params.0, key_derivation_params.1);
4669 if let Ok(delayed_payment_key) = chan_utils::derive_private_key(&secp_ctx, &per_commitment_point, &keys.inner.delayed_payment_base_key) {
4671 let delayed_payment_pubkey = PublicKey::from_secret_key(&secp_ctx, &delayed_payment_key);
4672 let witness_script = chan_utils::get_revokeable_redeemscript(remote_revocation_pubkey, *to_self_delay, &delayed_payment_pubkey);
4673 let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
4674 let local_delayedsig = secp_ctx.sign(&sighash, &delayed_payment_key);
4675 spend_tx.input[0].witness.push(local_delayedsig.serialize_der().to_vec());
4676 spend_tx.input[0].witness[0].push(SigHashType::All as u8);
4677 spend_tx.input[0].witness.push(vec!()); //MINIMALIF
4678 spend_tx.input[0].witness.push(witness_script.clone().into_bytes());
4682 SpendableOutputDescriptor::StaticOutput { ref outpoint, ref output } => {
4683 let secp_ctx = Secp256k1::new();
4685 previous_output: outpoint.clone(),
4686 script_sig: Script::new(),
4688 witness: Vec::new(),
4691 script_pubkey: Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(),
4692 value: output.value,
4694 let mut spend_tx = Transaction {
4698 output: vec![outp.clone()],
4701 match ExtendedPrivKey::new_master(Network::Testnet, &$node.node_seed) {
4703 match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx($der_idx).expect("key space exhausted")) {
4705 Err(_) => panic!("Your RNG is busted"),
4708 Err(_) => panic!("Your rng is busted"),
4711 let pubkey = ExtendedPubKey::from_private(&secp_ctx, &secret).public_key;
4712 let witness_script = Address::p2pkh(&pubkey, Network::Testnet).script_pubkey();
4713 let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
4714 let sig = secp_ctx.sign(&sighash, &secret.private_key.key);
4715 spend_tx.input[0].witness.push(sig.serialize_der().to_vec());
4716 spend_tx.input[0].witness[0].push(SigHashType::All as u8);
4717 spend_tx.input[0].witness.push(pubkey.key.serialize().to_vec());
4723 _ => panic!("Unexpected event"),
4732 fn test_claim_sizeable_push_msat() {
4733 // Incidentally test SpendableOutput event generation due to detection of to_local output on commitment tx
4734 let chanmon_cfgs = create_chanmon_cfgs(2);
4735 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4736 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4737 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4739 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000, InitFeatures::known(), InitFeatures::known());
4740 nodes[1].node.force_close_channel(&chan.2);
4741 check_closed_broadcast!(nodes[1], false);
4742 check_added_monitors!(nodes[1], 1);
4743 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
4744 assert_eq!(node_txn.len(), 1);
4745 check_spends!(node_txn[0], chan.3);
4746 assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening
4748 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4749 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone()] }, 0);
4750 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
4752 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
4753 assert_eq!(spend_txn.len(), 1);
4754 check_spends!(spend_txn[0], node_txn[0]);
4758 fn test_claim_on_remote_sizeable_push_msat() {
4759 // Same test as previous, just test on remote commitment tx, as per_commitment_point registration changes following you're funder/fundee and
4760 // to_remote output is encumbered by a P2WPKH
4761 let chanmon_cfgs = create_chanmon_cfgs(2);
4762 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4763 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4764 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4766 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000, InitFeatures::known(), InitFeatures::known());
4767 nodes[0].node.force_close_channel(&chan.2);
4768 check_closed_broadcast!(nodes[0], false);
4769 check_added_monitors!(nodes[0], 1);
4771 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
4772 assert_eq!(node_txn.len(), 1);
4773 check_spends!(node_txn[0], chan.3);
4774 assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening
4776 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4777 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone()] }, 0);
4778 check_closed_broadcast!(nodes[1], false);
4779 check_added_monitors!(nodes[1], 1);
4780 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
4782 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
4783 assert_eq!(spend_txn.len(), 2);
4784 assert_eq!(spend_txn[0], spend_txn[1]);
4785 check_spends!(spend_txn[0], node_txn[0]);
4789 fn test_claim_on_remote_revoked_sizeable_push_msat() {
4790 // Same test as previous, just test on remote revoked commitment tx, as per_commitment_point registration changes following you're funder/fundee and
4791 // to_remote output is encumbered by a P2WPKH
4793 let chanmon_cfgs = create_chanmon_cfgs(2);
4794 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4795 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4796 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4798 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 59000000, InitFeatures::known(), InitFeatures::known());
4799 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
4800 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan.2);
4801 assert_eq!(revoked_local_txn[0].input.len(), 1);
4802 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid());
4804 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000);
4805 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4806 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 0);
4807 check_closed_broadcast!(nodes[1], false);
4808 check_added_monitors!(nodes[1], 1);
4810 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
4811 let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4812 nodes[1].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone()] }, 1);
4813 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
4815 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
4816 assert_eq!(spend_txn.len(), 3);
4817 assert_eq!(spend_txn[0], spend_txn[1]); // to_remote output on revoked remote commitment_tx
4818 check_spends!(spend_txn[0], revoked_local_txn[0]);
4819 check_spends!(spend_txn[2], node_txn[0]);
4823 fn test_static_spendable_outputs_preimage_tx() {
4824 let chanmon_cfgs = create_chanmon_cfgs(2);
4825 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4826 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4827 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4829 // Create some initial channels
4830 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4832 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
4834 let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
4835 assert_eq!(commitment_tx[0].input.len(), 1);
4836 assert_eq!(commitment_tx[0].input[0].previous_output.txid, chan_1.3.txid());
4838 // Settle A's commitment tx on B's chain
4839 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4840 assert!(nodes[1].node.claim_funds(payment_preimage, &None, 3_000_000));
4841 check_added_monitors!(nodes[1], 1);
4842 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()] }, 1);
4843 check_added_monitors!(nodes[1], 1);
4844 let events = nodes[1].node.get_and_clear_pending_msg_events();
4846 MessageSendEvent::UpdateHTLCs { .. } => {},
4847 _ => panic!("Unexpected event"),
4850 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
4851 _ => panic!("Unexepected event"),
4854 // Check B's monitor was able to send back output descriptor event for preimage tx on A's commitment tx
4855 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); // ChannelManager : 2 (local commitment tx + HTLC-Success), ChannelMonitor: preimage tx
4856 assert_eq!(node_txn.len(), 3);
4857 check_spends!(node_txn[0], commitment_tx[0]);
4858 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
4859 check_spends!(node_txn[1], chan_1.3);
4860 check_spends!(node_txn[2], node_txn[1]);
4862 let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4863 nodes[1].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone()] }, 1);
4864 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
4866 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
4867 assert_eq!(spend_txn.len(), 1);
4868 check_spends!(spend_txn[0], node_txn[0]);
4872 fn test_static_spendable_outputs_timeout_tx() {
4873 let chanmon_cfgs = create_chanmon_cfgs(2);
4874 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4875 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4876 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4878 // Create some initial channels
4879 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4881 // Rebalance the network a bit by relaying one payment through all the channels ...
4882 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
4884 let (_, our_payment_hash) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000);
4886 let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
4887 assert_eq!(commitment_tx[0].input.len(), 1);
4888 assert_eq!(commitment_tx[0].input[0].previous_output.txid, chan_1.3.txid());
4890 // Settle A's commitment tx on B' chain
4891 let header = BlockHeader { version: 0x2000_0000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
4892 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()] }, 0);
4893 check_added_monitors!(nodes[1], 1);
4894 let events = nodes[1].node.get_and_clear_pending_msg_events();
4896 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
4897 _ => panic!("Unexpected event"),
4900 // Check B's monitor was able to send back output descriptor event for timeout tx on A's commitment tx
4901 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
4902 assert_eq!(node_txn.len(), 3); // ChannelManager : 2 (local commitent tx + HTLC-timeout), ChannelMonitor: timeout tx
4903 check_spends!(node_txn[0], commitment_tx[0].clone());
4904 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
4905 check_spends!(node_txn[1], chan_1.3.clone());
4906 check_spends!(node_txn[2], node_txn[1]);
4908 let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4909 nodes[1].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone()] }, 1);
4910 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
4911 expect_payment_failed!(nodes[1], our_payment_hash, true);
4913 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
4914 assert_eq!(spend_txn.len(), 3); // SpendableOutput: remote_commitment_tx.to_remote (*2), timeout_tx.output (*1)
4915 check_spends!(spend_txn[2], node_txn[0].clone());
4919 fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() {
4920 let chanmon_cfgs = create_chanmon_cfgs(2);
4921 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4922 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4923 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4925 // Create some initial channels
4926 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4928 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
4929 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
4930 assert_eq!(revoked_local_txn[0].input.len(), 1);
4931 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
4933 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000);
4935 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4936 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 0);
4937 check_closed_broadcast!(nodes[1], false);
4938 check_added_monitors!(nodes[1], 1);
4940 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
4941 assert_eq!(node_txn.len(), 2);
4942 assert_eq!(node_txn[0].input.len(), 2);
4943 check_spends!(node_txn[0], revoked_local_txn[0]);
4945 let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4946 nodes[1].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone()] }, 1);
4947 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
4949 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
4950 assert_eq!(spend_txn.len(), 1);
4951 check_spends!(spend_txn[0], node_txn[0]);
4955 fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() {
4956 let chanmon_cfgs = create_chanmon_cfgs(2);
4957 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
4958 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
4959 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
4961 // Create some initial channels
4962 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
4964 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
4965 let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
4966 assert_eq!(revoked_local_txn[0].input.len(), 1);
4967 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
4969 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000);
4971 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
4972 // A will generate HTLC-Timeout from revoked commitment tx
4973 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
4974 check_closed_broadcast!(nodes[0], false);
4975 check_added_monitors!(nodes[0], 1);
4977 let revoked_htlc_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
4978 assert_eq!(revoked_htlc_txn.len(), 2);
4979 assert_eq!(revoked_htlc_txn[0].input.len(), 1);
4980 assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
4981 check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]);
4982 check_spends!(revoked_htlc_txn[1], chan_1.3);
4984 // B will generate justice tx from A's revoked commitment/HTLC tx
4985 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }, 0);
4986 check_closed_broadcast!(nodes[1], false);
4987 check_added_monitors!(nodes[1], 1);
4989 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
4990 assert_eq!(node_txn.len(), 4); // ChannelMonitor: justice tx on revoked commitment, justice tx on revoked HTLC-timeout, adjusted justice tx, ChannelManager: local commitment tx
4991 assert_eq!(node_txn[0].input.len(), 2);
4992 check_spends!(node_txn[0], revoked_local_txn[0]);
4993 check_spends!(node_txn[1], chan_1.3);
4994 assert_eq!(node_txn[2].input.len(), 1);
4995 check_spends!(node_txn[2], revoked_htlc_txn[0]);
4996 assert_eq!(node_txn[3].input.len(), 1);
4997 check_spends!(node_txn[3], revoked_local_txn[0]);
4999 let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5000 nodes[1].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone(), node_txn[2].clone()] }, 1);
5001 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
5003 // Check B's ChannelMonitor was able to generate the right spendable output descriptor
5004 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
5005 assert_eq!(spend_txn.len(), 2);
5006 check_spends!(spend_txn[0], node_txn[0]);
5007 check_spends!(spend_txn[1], node_txn[2]);
5011 fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() {
5012 let chanmon_cfgs = create_chanmon_cfgs(2);
5013 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
5014 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
5015 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
5017 // Create some initial channels
5018 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5020 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
5021 let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan_1.2);
5022 assert_eq!(revoked_local_txn[0].input.len(), 1);
5023 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
5025 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000);
5027 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5028 // B will generate HTLC-Success from revoked commitment tx
5029 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
5030 check_closed_broadcast!(nodes[1], false);
5031 check_added_monitors!(nodes[1], 1);
5032 let revoked_htlc_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
5034 assert_eq!(revoked_htlc_txn.len(), 2);
5035 assert_eq!(revoked_htlc_txn[0].input.len(), 1);
5036 assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5037 check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]);
5039 // A will generate justice tx from B's revoked commitment/HTLC tx
5040 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }, 1);
5041 check_closed_broadcast!(nodes[0], false);
5042 check_added_monitors!(nodes[0], 1);
5044 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
5045 assert_eq!(node_txn.len(), 3); // ChannelMonitor: justice tx on revoked commitment, justice tx on revoked HTLC-success, ChannelManager: local commitment tx
5046 assert_eq!(node_txn[2].input.len(), 1);
5047 check_spends!(node_txn[2], revoked_htlc_txn[0]);
5049 let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5050 nodes[0].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone(), node_txn[2].clone()] }, 1);
5051 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
5053 // Check A's ChannelMonitor was able to generate the right spendable output descriptor
5054 let spend_txn = check_spendable_outputs!(nodes[0], 1, node_cfgs[0].keys_manager, 100000);
5055 assert_eq!(spend_txn.len(), 5); // Duplicated SpendableOutput due to block rescan after revoked htlc output tracking
5056 assert_eq!(spend_txn[0], spend_txn[1]);
5057 assert_eq!(spend_txn[0], spend_txn[2]);
5058 check_spends!(spend_txn[0], revoked_local_txn[0]); // spending to_remote output from revoked local tx
5059 check_spends!(spend_txn[3], node_txn[0]); // spending justice tx output from revoked local tx htlc received output
5060 check_spends!(spend_txn[4], node_txn[2]); // spending justice tx output on htlc success tx
5064 fn test_onchain_to_onchain_claim() {
5065 // Test that in case of channel closure, we detect the state of output thanks to
5066 // ChainWatchInterface and claim HTLC on downstream peer's remote commitment tx.
5067 // First, have C claim an HTLC against its own latest commitment transaction.
5068 // Then, broadcast these to B, which should update the monitor downstream on the A<->B
5070 // Finally, check that B will claim the HTLC output if A's latest commitment transaction
5073 let chanmon_cfgs = create_chanmon_cfgs(3);
5074 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
5075 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
5076 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
5078 // Create some initial channels
5079 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5080 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
5082 // Rebalance the network a bit by relaying one payment through all the channels ...
5083 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
5084 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
5086 let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000);
5087 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
5088 let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2);
5089 check_spends!(commitment_tx[0], chan_2.3);
5090 nodes[2].node.claim_funds(payment_preimage, &None, 3_000_000);
5091 check_added_monitors!(nodes[2], 1);
5092 let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
5093 assert!(updates.update_add_htlcs.is_empty());
5094 assert!(updates.update_fail_htlcs.is_empty());
5095 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
5096 assert!(updates.update_fail_malformed_htlcs.is_empty());
5098 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1);
5099 check_closed_broadcast!(nodes[2], false);
5100 check_added_monitors!(nodes[2], 1);
5102 let c_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 2 (commitment tx, HTLC-Success tx), ChannelMonitor : 1 (HTLC-Success tx)
5103 assert_eq!(c_txn.len(), 3);
5104 assert_eq!(c_txn[0], c_txn[2]);
5105 assert_eq!(commitment_tx[0], c_txn[1]);
5106 check_spends!(c_txn[1], chan_2.3);
5107 check_spends!(c_txn[2], c_txn[1]);
5108 assert_eq!(c_txn[1].input[0].witness.clone().last().unwrap().len(), 71);
5109 assert_eq!(c_txn[2].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5110 assert!(c_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
5111 assert_eq!(c_txn[0].lock_time, 0); // Success tx
5113 // So we broadcast C's commitment tx and HTLC-Success on B's chain, we should successfully be able to extract preimage and update downstream monitor
5114 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![c_txn[1].clone(), c_txn[2].clone()]}, 1);
5116 let mut b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
5117 // ChannelMonitor: claim tx, ChannelManager: local commitment tx + HTLC-timeout tx
5118 assert_eq!(b_txn.len(), 3);
5119 check_spends!(b_txn[1], chan_2.3); // B local commitment tx, issued by ChannelManager
5120 check_spends!(b_txn[2], b_txn[1]); // HTLC-Timeout on B local commitment tx, issued by ChannelManager
5121 assert_eq!(b_txn[2].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
5122 assert!(b_txn[2].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
5123 assert_ne!(b_txn[2].lock_time, 0); // Timeout tx
5124 check_spends!(b_txn[0], c_txn[1]); // timeout tx on C remote commitment tx, issued by ChannelMonitor, * 2 due to block rescan
5125 assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5126 assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
5127 assert_ne!(b_txn[2].lock_time, 0); // Timeout tx
5130 check_added_monitors!(nodes[1], 1);
5131 let msg_events = nodes[1].node.get_and_clear_pending_msg_events();
5132 check_added_monitors!(nodes[1], 1);
5133 match msg_events[0] {
5134 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
5135 _ => panic!("Unexpected event"),
5137 match msg_events[1] {
5138 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => {
5139 assert!(update_add_htlcs.is_empty());
5140 assert!(update_fail_htlcs.is_empty());
5141 assert_eq!(update_fulfill_htlcs.len(), 1);
5142 assert!(update_fail_malformed_htlcs.is_empty());
5143 assert_eq!(nodes[0].node.get_our_node_id(), *node_id);
5145 _ => panic!("Unexpected event"),
5147 // Broadcast A's commitment tx on B's chain to see if we are able to claim inbound HTLC with our HTLC-Success tx
5148 let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
5149 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![commitment_tx[0].clone()]}, 1);
5150 let b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
5151 // ChannelMonitor: HTLC-Success tx, ChannelManager: local commitment tx + HTLC-Success tx
5152 assert_eq!(b_txn.len(), 3);
5153 check_spends!(b_txn[1], chan_1.3);
5154 check_spends!(b_txn[2], b_txn[1]);
5155 check_spends!(b_txn[0], commitment_tx[0]);
5156 assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
5157 assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
5158 assert_eq!(b_txn[0].lock_time, 0); // Success tx
5160 check_closed_broadcast!(nodes[1], false);
5161 check_added_monitors!(nodes[1], 1);
5165 fn test_duplicate_payment_hash_one_failure_one_success() {
5166 // Topology : A --> B --> C
5167 // We route 2 payments with same hash between B and C, one will be timeout, the other successfully claim
5168 let chanmon_cfgs = create_chanmon_cfgs(3);
5169 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
5170 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
5171 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
5173 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5174 let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
5176 let (our_payment_preimage, duplicate_payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000);
5177 *nodes[0].network_payment_count.borrow_mut() -= 1;
5178 assert_eq!(route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000).1, duplicate_payment_hash);
5180 let commitment_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
5181 assert_eq!(commitment_txn[0].input.len(), 1);
5182 check_spends!(commitment_txn[0], chan_2.3);
5184 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5185 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![commitment_txn[0].clone()] }, 1);
5186 check_closed_broadcast!(nodes[1], false);
5187 check_added_monitors!(nodes[1], 1);
5189 let htlc_timeout_tx;
5190 { // Extract one of the two HTLC-Timeout transaction
5191 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
5192 // ChannelMonitor: timeout tx * 2, ChannelManager: local commitment tx + HTLC-timeout * 2
5193 assert_eq!(node_txn.len(), 5);
5194 check_spends!(node_txn[0], commitment_txn[0]);
5195 assert_eq!(node_txn[0].input.len(), 1);
5196 check_spends!(node_txn[1], commitment_txn[0]);
5197 assert_eq!(node_txn[1].input.len(), 1);
5198 assert_ne!(node_txn[0].input[0], node_txn[1].input[0]);
5199 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5200 assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5201 check_spends!(node_txn[2], chan_2.3);
5202 check_spends!(node_txn[3], node_txn[2]);
5203 check_spends!(node_txn[4], node_txn[2]);
5204 htlc_timeout_tx = node_txn[1].clone();
5207 nodes[2].node.claim_funds(our_payment_preimage, &None, 900_000);
5208 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![commitment_txn[0].clone()] }, 1);
5209 check_added_monitors!(nodes[2], 3);
5210 let events = nodes[2].node.get_and_clear_pending_msg_events();
5212 MessageSendEvent::UpdateHTLCs { .. } => {},
5213 _ => panic!("Unexpected event"),
5216 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
5217 _ => panic!("Unexepected event"),
5219 let htlc_success_txn: Vec<_> = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
5220 assert_eq!(htlc_success_txn.len(), 5); // ChannelMonitor: HTLC-Success txn (*2 due to 2-HTLC outputs), ChannelManager: local commitment tx + HTLC-Success txn (*2 due to 2-HTLC outputs)
5221 check_spends!(htlc_success_txn[2], chan_2.3);
5222 check_spends!(htlc_success_txn[3], htlc_success_txn[2]);
5223 check_spends!(htlc_success_txn[4], htlc_success_txn[2]);
5224 assert_eq!(htlc_success_txn[0], htlc_success_txn[3]);
5225 assert_eq!(htlc_success_txn[0].input.len(), 1);
5226 assert_eq!(htlc_success_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5227 assert_eq!(htlc_success_txn[1], htlc_success_txn[4]);
5228 assert_eq!(htlc_success_txn[1].input.len(), 1);
5229 assert_eq!(htlc_success_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5230 assert_ne!(htlc_success_txn[0].input[0], htlc_success_txn[1].input[0]);
5231 check_spends!(htlc_success_txn[0], commitment_txn[0]);
5232 check_spends!(htlc_success_txn[1], commitment_txn[0]);
5234 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![htlc_timeout_tx] }, 200);
5235 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 200, true, header.bitcoin_hash());
5236 expect_pending_htlcs_forwardable!(nodes[1]);
5237 let htlc_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
5238 assert!(htlc_updates.update_add_htlcs.is_empty());
5239 assert_eq!(htlc_updates.update_fail_htlcs.len(), 1);
5240 assert_eq!(htlc_updates.update_fail_htlcs[0].htlc_id, 1);
5241 assert!(htlc_updates.update_fulfill_htlcs.is_empty());
5242 assert!(htlc_updates.update_fail_malformed_htlcs.is_empty());
5243 check_added_monitors!(nodes[1], 1);
5245 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &htlc_updates.update_fail_htlcs[0]);
5246 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
5248 commitment_signed_dance!(nodes[0], nodes[1], &htlc_updates.commitment_signed, false, true);
5249 let events = nodes[0].node.get_and_clear_pending_msg_events();
5250 assert_eq!(events.len(), 1);
5252 MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelClosed { .. } } => {
5254 _ => { panic!("Unexpected event"); }
5257 expect_payment_failed!(nodes[0], duplicate_payment_hash, false);
5259 // Solve 2nd HTLC by broadcasting on B's chain HTLC-Success Tx from C
5260 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![htlc_success_txn[0].clone()] }, 200);
5261 let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
5262 assert!(updates.update_add_htlcs.is_empty());
5263 assert!(updates.update_fail_htlcs.is_empty());
5264 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
5265 assert_eq!(updates.update_fulfill_htlcs[0].htlc_id, 0);
5266 assert!(updates.update_fail_malformed_htlcs.is_empty());
5267 check_added_monitors!(nodes[1], 1);
5269 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
5270 commitment_signed_dance!(nodes[0], nodes[1], &updates.commitment_signed, false);
5272 let events = nodes[0].node.get_and_clear_pending_events();
5274 Event::PaymentSent { ref payment_preimage } => {
5275 assert_eq!(*payment_preimage, our_payment_preimage);
5277 _ => panic!("Unexpected event"),
5282 fn test_dynamic_spendable_outputs_local_htlc_success_tx() {
5283 let chanmon_cfgs = create_chanmon_cfgs(2);
5284 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
5285 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
5286 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
5288 // Create some initial channels
5289 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5291 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0;
5292 let local_txn = get_local_commitment_txn!(nodes[1], chan_1.2);
5293 assert_eq!(local_txn[0].input.len(), 1);
5294 check_spends!(local_txn[0], chan_1.3);
5296 // Give B knowledge of preimage to be able to generate a local HTLC-Success Tx
5297 nodes[1].node.claim_funds(payment_preimage, &None, 9_000_000);
5298 check_added_monitors!(nodes[1], 1);
5299 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5300 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![local_txn[0].clone()] }, 1);
5301 check_added_monitors!(nodes[1], 1);
5302 let events = nodes[1].node.get_and_clear_pending_msg_events();
5304 MessageSendEvent::UpdateHTLCs { .. } => {},
5305 _ => panic!("Unexpected event"),
5308 MessageSendEvent::BroadcastChannelUpdate { .. } => {},
5309 _ => panic!("Unexepected event"),
5312 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
5313 assert_eq!(node_txn[0].input.len(), 1);
5314 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
5315 check_spends!(node_txn[0], local_txn[0]);
5316 vec![node_txn[0].clone(), node_txn[2].clone()]
5319 let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5320 nodes[1].block_notifier.block_connected(&Block { header: header_201, txdata: node_txn.clone() }, 201);
5321 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 201, true, header_201.bitcoin_hash());
5323 // Verify that B is able to spend its own HTLC-Success tx thanks to spendable output event given back by its ChannelMonitor
5324 let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000);
5325 assert_eq!(spend_txn.len(), 2);
5326 check_spends!(spend_txn[0], node_txn[0]);
5327 check_spends!(spend_txn[1], node_txn[1]);
5330 fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, announce_latest: bool) {
5331 // Test that we fail backwards the full set of HTLCs we need to when remote broadcasts an
5332 // unrevoked commitment transaction.
5333 // This includes HTLCs which were below the dust threshold as well as HTLCs which were awaiting
5334 // a remote RAA before they could be failed backwards (and combinations thereof).
5335 // We also test duplicate-hash HTLCs by adding two nodes on each side of the target nodes which
5336 // use the same payment hashes.
5337 // Thus, we use a six-node network:
5342 // And test where C fails back to A/B when D announces its latest commitment transaction
5343 let chanmon_cfgs = create_chanmon_cfgs(6);
5344 let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
5345 let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
5346 let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
5347 let logger = test_utils::TestLogger::new();
5349 create_announced_chan_between_nodes(&nodes, 0, 2, InitFeatures::known(), InitFeatures::known());
5350 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
5351 let chan = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known());
5352 create_announced_chan_between_nodes(&nodes, 3, 4, InitFeatures::known(), InitFeatures::known());
5353 create_announced_chan_between_nodes(&nodes, 3, 5, InitFeatures::known(), InitFeatures::known());
5355 // Rebalance and check output sanity...
5356 send_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 500000, 500_000);
5357 send_payment(&nodes[1], &[&nodes[2], &nodes[3], &nodes[5]], 500000, 500_000);
5358 assert_eq!(get_local_commitment_txn!(nodes[3], chan.2)[0].output.len(), 2);
5360 let ds_dust_limit = nodes[3].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
5362 let (_, payment_hash_1) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
5364 let (_, payment_hash_2) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
5365 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
5366 let our_node_id = &nodes[1].node.get_our_node_id();
5367 let route = get_route(our_node_id, &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[5].node.get_our_node_id(), None, &Vec::new(), ds_dust_limit*1000, TEST_FINAL_CLTV, &logger).unwrap();
5369 send_along_route_with_hash(&nodes[1], route.clone(), &[&nodes[2], &nodes[3], &nodes[5]], ds_dust_limit*1000, payment_hash_1); // not added < dust limit + HTLC tx fee
5371 send_along_route_with_hash(&nodes[1], route, &[&nodes[2], &nodes[3], &nodes[5]], ds_dust_limit*1000, payment_hash_2); // not added < dust limit + HTLC tx fee
5373 let (_, payment_hash_3) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
5375 let (_, payment_hash_4) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
5376 let route = get_route(our_node_id, &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[5].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
5378 send_along_route_with_hash(&nodes[1], route.clone(), &[&nodes[2], &nodes[3], &nodes[5]], 1000000, payment_hash_3);
5380 send_along_route_with_hash(&nodes[1], route, &[&nodes[2], &nodes[3], &nodes[5]], 1000000, payment_hash_4);
5383 let (_, payment_hash_5) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
5385 let route = get_route(our_node_id, &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[5].node.get_our_node_id(), None, &Vec::new(), ds_dust_limit*1000, TEST_FINAL_CLTV, &logger).unwrap();
5386 send_along_route_with_hash(&nodes[1], route, &[&nodes[2], &nodes[3], &nodes[5]], ds_dust_limit*1000, payment_hash_5); // not added < dust limit + HTLC tx fee
5389 let (_, payment_hash_6) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
5391 let route = get_route(our_node_id, &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[5].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap();
5392 send_along_route_with_hash(&nodes[1], route, &[&nodes[2], &nodes[3], &nodes[5]], 1000000, payment_hash_6);
5394 // Double-check that six of the new HTLC were added
5395 // We now have six HTLCs pending over the dust limit and six HTLCs under the dust limit (ie,
5396 // with to_local and to_remote outputs, 8 outputs and 6 HTLCs not included).
5397 assert_eq!(get_local_commitment_txn!(nodes[3], chan.2).len(), 1);
5398 assert_eq!(get_local_commitment_txn!(nodes[3], chan.2)[0].output.len(), 8);
5400 // Now fail back three of the over-dust-limit and three of the under-dust-limit payments in one go.
5401 // Fail 0th below-dust, 4th above-dust, 8th above-dust, 10th below-dust HTLCs
5402 assert!(nodes[4].node.fail_htlc_backwards(&payment_hash_1, &None));
5403 assert!(nodes[4].node.fail_htlc_backwards(&payment_hash_3, &None));
5404 assert!(nodes[4].node.fail_htlc_backwards(&payment_hash_5, &None));
5405 assert!(nodes[4].node.fail_htlc_backwards(&payment_hash_6, &None));
5406 check_added_monitors!(nodes[4], 0);
5407 expect_pending_htlcs_forwardable!(nodes[4]);
5408 check_added_monitors!(nodes[4], 1);
5410 let four_removes = get_htlc_update_msgs!(nodes[4], nodes[3].node.get_our_node_id());
5411 nodes[3].node.handle_update_fail_htlc(&nodes[4].node.get_our_node_id(), &four_removes.update_fail_htlcs[0]);
5412 nodes[3].node.handle_update_fail_htlc(&nodes[4].node.get_our_node_id(), &four_removes.update_fail_htlcs[1]);
5413 nodes[3].node.handle_update_fail_htlc(&nodes[4].node.get_our_node_id(), &four_removes.update_fail_htlcs[2]);
5414 nodes[3].node.handle_update_fail_htlc(&nodes[4].node.get_our_node_id(), &four_removes.update_fail_htlcs[3]);
5415 commitment_signed_dance!(nodes[3], nodes[4], four_removes.commitment_signed, false);
5417 // Fail 3rd below-dust and 7th above-dust HTLCs
5418 assert!(nodes[5].node.fail_htlc_backwards(&payment_hash_2, &None));
5419 assert!(nodes[5].node.fail_htlc_backwards(&payment_hash_4, &None));
5420 check_added_monitors!(nodes[5], 0);
5421 expect_pending_htlcs_forwardable!(nodes[5]);
5422 check_added_monitors!(nodes[5], 1);
5424 let two_removes = get_htlc_update_msgs!(nodes[5], nodes[3].node.get_our_node_id());
5425 nodes[3].node.handle_update_fail_htlc(&nodes[5].node.get_our_node_id(), &two_removes.update_fail_htlcs[0]);
5426 nodes[3].node.handle_update_fail_htlc(&nodes[5].node.get_our_node_id(), &two_removes.update_fail_htlcs[1]);
5427 commitment_signed_dance!(nodes[3], nodes[5], two_removes.commitment_signed, false);
5429 let ds_prev_commitment_tx = get_local_commitment_txn!(nodes[3], chan.2);
5431 expect_pending_htlcs_forwardable!(nodes[3]);
5432 check_added_monitors!(nodes[3], 1);
5433 let six_removes = get_htlc_update_msgs!(nodes[3], nodes[2].node.get_our_node_id());
5434 nodes[2].node.handle_update_fail_htlc(&nodes[3].node.get_our_node_id(), &six_removes.update_fail_htlcs[0]);
5435 nodes[2].node.handle_update_fail_htlc(&nodes[3].node.get_our_node_id(), &six_removes.update_fail_htlcs[1]);
5436 nodes[2].node.handle_update_fail_htlc(&nodes[3].node.get_our_node_id(), &six_removes.update_fail_htlcs[2]);
5437 nodes[2].node.handle_update_fail_htlc(&nodes[3].node.get_our_node_id(), &six_removes.update_fail_htlcs[3]);
5438 nodes[2].node.handle_update_fail_htlc(&nodes[3].node.get_our_node_id(), &six_removes.update_fail_htlcs[4]);
5439 nodes[2].node.handle_update_fail_htlc(&nodes[3].node.get_our_node_id(), &six_removes.update_fail_htlcs[5]);
5440 if deliver_last_raa {
5441 commitment_signed_dance!(nodes[2], nodes[3], six_removes.commitment_signed, false);
5443 let _cs_last_raa = commitment_signed_dance!(nodes[2], nodes[3], six_removes.commitment_signed, false, true, false, true);
5446 // D's latest commitment transaction now contains 1st + 2nd + 9th HTLCs (implicitly, they're
5447 // below the dust limit) and the 5th + 6th + 11th HTLCs. It has failed back the 0th, 3rd, 4th,
5448 // 7th, 8th, and 10th, but as we haven't yet delivered the final RAA to C, the fails haven't
5449 // propagated back to A/B yet (and D has two unrevoked commitment transactions).
5451 // We now broadcast the latest commitment transaction, which *should* result in failures for
5452 // the 0th, 1st, 2nd, 3rd, 4th, 7th, 8th, 9th, and 10th HTLCs, ie all the below-dust HTLCs and
5453 // the non-broadcast above-dust HTLCs.
5455 // Alternatively, we may broadcast the previous commitment transaction, which should only
5456 // result in failures for the below-dust HTLCs, ie the 0th, 1st, 2nd, 3rd, 9th, and 10th HTLCs.
5457 let ds_last_commitment_tx = get_local_commitment_txn!(nodes[3], chan.2);
5459 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5460 if announce_latest {
5461 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![ds_last_commitment_tx[0].clone()]}, 1);
5463 nodes[2].block_notifier.block_connected(&Block { header, txdata: vec![ds_prev_commitment_tx[0].clone()]}, 1);
5465 connect_blocks(&nodes[2].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
5466 check_closed_broadcast!(nodes[2], false);
5467 expect_pending_htlcs_forwardable!(nodes[2]);
5468 check_added_monitors!(nodes[2], 3);
5470 let cs_msgs = nodes[2].node.get_and_clear_pending_msg_events();
5471 assert_eq!(cs_msgs.len(), 2);
5472 let mut a_done = false;
5473 for msg in cs_msgs {
5475 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
5476 // Both under-dust HTLCs and the one above-dust HTLC that we had already failed
5477 // should be failed-backwards here.
5478 let target = if *node_id == nodes[0].node.get_our_node_id() {
5479 // If announce_latest, expect 0th, 1st, 4th, 8th, 10th HTLCs, else only 0th, 1st, 10th below-dust HTLCs
5480 for htlc in &updates.update_fail_htlcs {
5481 assert!(htlc.htlc_id == 1 || htlc.htlc_id == 2 || htlc.htlc_id == 6 || if announce_latest { htlc.htlc_id == 3 || htlc.htlc_id == 5 } else { false });
5483 assert_eq!(updates.update_fail_htlcs.len(), if announce_latest { 5 } else { 3 });
5488 // If announce_latest, expect 2nd, 3rd, 7th, 9th HTLCs, else only 2nd, 3rd, 9th below-dust HTLCs
5489 for htlc in &updates.update_fail_htlcs {
5490 assert!(htlc.htlc_id == 1 || htlc.htlc_id == 2 || htlc.htlc_id == 5 || if announce_latest { htlc.htlc_id == 4 } else { false });
5492 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
5493 assert_eq!(updates.update_fail_htlcs.len(), if announce_latest { 4 } else { 3 });
5496 target.node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
5497 target.node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[1]);
5498 target.node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[2]);
5499 if announce_latest {
5500 target.node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[3]);
5501 if *node_id == nodes[0].node.get_our_node_id() {
5502 target.node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[4]);
5505 commitment_signed_dance!(target, nodes[2], updates.commitment_signed, false, true);
5507 _ => panic!("Unexpected event"),
5511 let as_events = nodes[0].node.get_and_clear_pending_events();
5512 assert_eq!(as_events.len(), if announce_latest { 5 } else { 3 });
5513 let mut as_failds = HashSet::new();
5514 for event in as_events.iter() {
5515 if let &Event::PaymentFailed { ref payment_hash, ref rejected_by_dest, .. } = event {
5516 assert!(as_failds.insert(*payment_hash));
5517 if *payment_hash != payment_hash_2 {
5518 assert_eq!(*rejected_by_dest, deliver_last_raa);
5520 assert!(!rejected_by_dest);
5522 } else { panic!("Unexpected event"); }
5524 assert!(as_failds.contains(&payment_hash_1));
5525 assert!(as_failds.contains(&payment_hash_2));
5526 if announce_latest {
5527 assert!(as_failds.contains(&payment_hash_3));
5528 assert!(as_failds.contains(&payment_hash_5));
5530 assert!(as_failds.contains(&payment_hash_6));
5532 let bs_events = nodes[1].node.get_and_clear_pending_events();
5533 assert_eq!(bs_events.len(), if announce_latest { 4 } else { 3 });
5534 let mut bs_failds = HashSet::new();
5535 for event in bs_events.iter() {
5536 if let &Event::PaymentFailed { ref payment_hash, ref rejected_by_dest, .. } = event {
5537 assert!(bs_failds.insert(*payment_hash));
5538 if *payment_hash != payment_hash_1 && *payment_hash != payment_hash_5 {
5539 assert_eq!(*rejected_by_dest, deliver_last_raa);
5541 assert!(!rejected_by_dest);
5543 } else { panic!("Unexpected event"); }
5545 assert!(bs_failds.contains(&payment_hash_1));
5546 assert!(bs_failds.contains(&payment_hash_2));
5547 if announce_latest {
5548 assert!(bs_failds.contains(&payment_hash_4));
5550 assert!(bs_failds.contains(&payment_hash_5));
5552 // For each HTLC which was not failed-back by normal process (ie deliver_last_raa), we should
5553 // get a PaymentFailureNetworkUpdate. A should have gotten 4 HTLCs which were failed-back due
5554 // to unknown-preimage-etc, B should have gotten 2. Thus, in the
5555 // announce_latest && deliver_last_raa case, we should have 5-4=1 and 4-2=2
5556 // PaymentFailureNetworkUpdates.
5557 let as_msg_events = nodes[0].node.get_and_clear_pending_msg_events();
5558 assert_eq!(as_msg_events.len(), if deliver_last_raa { 1 } else if !announce_latest { 3 } else { 5 });
5559 let bs_msg_events = nodes[1].node.get_and_clear_pending_msg_events();
5560 assert_eq!(bs_msg_events.len(), if deliver_last_raa { 2 } else if !announce_latest { 3 } else { 4 });
5561 for event in as_msg_events.iter().chain(bs_msg_events.iter()) {
5563 &MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
5564 _ => panic!("Unexpected event"),
5570 fn test_fail_backwards_latest_remote_announce_a() {
5571 do_test_fail_backwards_unrevoked_remote_announce(false, true);
5575 fn test_fail_backwards_latest_remote_announce_b() {
5576 do_test_fail_backwards_unrevoked_remote_announce(true, true);
5580 fn test_fail_backwards_previous_remote_announce() {
5581 do_test_fail_backwards_unrevoked_remote_announce(false, false);
5582 // Note that true, true doesn't make sense as it implies we announce a revoked state, which is
5583 // tested for in test_commitment_revoked_fail_backward_exhaustive()
5587 fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() {
5588 let chanmon_cfgs = create_chanmon_cfgs(2);
5589 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
5590 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
5591 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
5593 // Create some initial channels
5594 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5596 let (_, our_payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000);
5597 let local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
5598 assert_eq!(local_txn[0].input.len(), 1);
5599 check_spends!(local_txn[0], chan_1.3);
5601 // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx
5602 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5603 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![local_txn[0].clone()] }, 200);
5604 check_closed_broadcast!(nodes[0], false);
5605 check_added_monitors!(nodes[0], 1);
5607 let htlc_timeout = {
5608 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
5609 assert_eq!(node_txn[0].input.len(), 1);
5610 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
5611 check_spends!(node_txn[0], local_txn[0]);
5615 let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5616 nodes[0].block_notifier.block_connected(&Block { header: header_201, txdata: vec![htlc_timeout.clone()] }, 201);
5617 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 201, true, header_201.bitcoin_hash());
5618 expect_payment_failed!(nodes[0], our_payment_hash, true);
5620 // Verify that A is able to spend its own HTLC-Timeout tx thanks to spendable output event given back by its ChannelMonitor
5621 let spend_txn = check_spendable_outputs!(nodes[0], 1, node_cfgs[0].keys_manager, 100000);
5622 assert_eq!(spend_txn.len(), 3);
5623 assert_eq!(spend_txn[0], spend_txn[1]);
5624 check_spends!(spend_txn[0], local_txn[0]);
5625 check_spends!(spend_txn[2], htlc_timeout);
5629 fn test_key_derivation_params() {
5630 // This test is a copy of test_dynamic_spendable_outputs_local_htlc_timeout_tx, with
5631 // a key manager rotation to test that key_derivation_params returned in DynamicOutputP2WSH
5632 // let us re-derive the channel key set to then derive a delayed_payment_key.
5634 let chanmon_cfgs = create_chanmon_cfgs(3);
5636 // We manually create the node configuration to backup the seed.
5637 let seed = [42; 32];
5638 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
5639 let chan_monitor = test_utils::TestChannelMonitor::new(&chanmon_cfgs[0].chain_monitor, &chanmon_cfgs[0].tx_broadcaster, &chanmon_cfgs[0].logger, &chanmon_cfgs[0].fee_estimator);
5640 let node = NodeCfg { chain_monitor: &chanmon_cfgs[0].chain_monitor, logger: &chanmon_cfgs[0].logger, tx_broadcaster: &chanmon_cfgs[0].tx_broadcaster, fee_estimator: &chanmon_cfgs[0].fee_estimator, chan_monitor, keys_manager, node_seed: seed };
5641 let mut node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
5642 node_cfgs.remove(0);
5643 node_cfgs.insert(0, node);
5645 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
5646 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
5648 // Create some initial channels
5649 // Create a dummy channel to advance index by one and thus test re-derivation correctness
5651 let chan_0 = create_announced_chan_between_nodes(&nodes, 0, 2, InitFeatures::known(), InitFeatures::known());
5652 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5653 assert_ne!(chan_0.3.output[0].script_pubkey, chan_1.3.output[0].script_pubkey);
5655 let (_, our_payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000);
5656 let local_txn_0 = get_local_commitment_txn!(nodes[0], chan_0.2);
5657 let local_txn_1 = get_local_commitment_txn!(nodes[0], chan_1.2);
5658 assert_eq!(local_txn_1[0].input.len(), 1);
5659 check_spends!(local_txn_1[0], chan_1.3);
5661 // We check funding pubkey are unique
5662 let (from_0_funding_key_0, from_0_funding_key_1) = (PublicKey::from_slice(&local_txn_0[0].input[0].witness[3][2..35]), PublicKey::from_slice(&local_txn_0[0].input[0].witness[3][36..69]));
5663 let (from_1_funding_key_0, from_1_funding_key_1) = (PublicKey::from_slice(&local_txn_1[0].input[0].witness[3][2..35]), PublicKey::from_slice(&local_txn_1[0].input[0].witness[3][36..69]));
5664 if from_0_funding_key_0 == from_1_funding_key_0
5665 || from_0_funding_key_0 == from_1_funding_key_1
5666 || from_0_funding_key_1 == from_1_funding_key_0
5667 || from_0_funding_key_1 == from_1_funding_key_1 {
5668 panic!("Funding pubkeys aren't unique");
5671 // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx
5672 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5673 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![local_txn_1[0].clone()] }, 200);
5674 check_closed_broadcast!(nodes[0], false);
5675 check_added_monitors!(nodes[0], 1);
5677 let htlc_timeout = {
5678 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
5679 assert_eq!(node_txn[0].input.len(), 1);
5680 assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
5681 check_spends!(node_txn[0], local_txn_1[0]);
5685 let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5686 nodes[0].block_notifier.block_connected(&Block { header: header_201, txdata: vec![htlc_timeout.clone()] }, 201);
5687 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 201, true, header_201.bitcoin_hash());
5688 expect_payment_failed!(nodes[0], our_payment_hash, true);
5690 // Verify that A is able to spend its own HTLC-Timeout tx thanks to spendable output event given back by its ChannelMonitor
5691 let new_keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
5692 let spend_txn = check_spendable_outputs!(nodes[0], 1, new_keys_manager, 100000);
5693 assert_eq!(spend_txn.len(), 3);
5694 assert_eq!(spend_txn[0], spend_txn[1]);
5695 check_spends!(spend_txn[0], local_txn_1[0]);
5696 check_spends!(spend_txn[2], htlc_timeout);
5700 fn test_static_output_closing_tx() {
5701 let chanmon_cfgs = create_chanmon_cfgs(2);
5702 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
5703 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
5704 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
5706 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5708 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
5709 let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2;
5711 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5712 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![closing_tx.clone()] }, 0);
5713 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 0, true, header.bitcoin_hash());
5715 let spend_txn = check_spendable_outputs!(nodes[0], 2, node_cfgs[0].keys_manager, 100000);
5716 assert_eq!(spend_txn.len(), 1);
5717 check_spends!(spend_txn[0], closing_tx);
5719 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![closing_tx.clone()] }, 0);
5720 connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 0, true, header.bitcoin_hash());
5722 let spend_txn = check_spendable_outputs!(nodes[1], 2, node_cfgs[1].keys_manager, 100000);
5723 assert_eq!(spend_txn.len(), 1);
5724 check_spends!(spend_txn[0], closing_tx);
5727 fn do_htlc_claim_local_commitment_only(use_dust: bool) {
5728 let chanmon_cfgs = create_chanmon_cfgs(2);
5729 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
5730 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
5731 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
5732 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5734 let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], if use_dust { 50000 } else { 3000000 });
5736 // Claim the payment, but don't deliver A's commitment_signed, resulting in the HTLC only being
5737 // present in B's local commitment transaction, but none of A's commitment transactions.
5738 assert!(nodes[1].node.claim_funds(our_payment_preimage, &None, if use_dust { 50_000 } else { 3_000_000 }));
5739 check_added_monitors!(nodes[1], 1);
5741 let bs_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
5742 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.update_fulfill_htlcs[0]);
5743 let events = nodes[0].node.get_and_clear_pending_events();
5744 assert_eq!(events.len(), 1);
5746 Event::PaymentSent { payment_preimage } => {
5747 assert_eq!(payment_preimage, our_payment_preimage);
5749 _ => panic!("Unexpected event"),
5752 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_updates.commitment_signed);
5753 check_added_monitors!(nodes[0], 1);
5754 let as_updates = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
5755 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_updates.0);
5756 check_added_monitors!(nodes[1], 1);
5758 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5759 for i in 1..TEST_FINAL_CLTV - CLTV_CLAIM_BUFFER + CHAN_CONFIRM_DEPTH + 1 {
5760 nodes[1].block_notifier.block_connected_checked(&header, i, &Vec::new(), &Vec::new());
5761 header.prev_blockhash = header.bitcoin_hash();
5763 test_txn_broadcast(&nodes[1], &chan, None, if use_dust { HTLCType::NONE } else { HTLCType::SUCCESS });
5764 check_closed_broadcast!(nodes[1], false);
5765 check_added_monitors!(nodes[1], 1);
5768 fn do_htlc_claim_current_remote_commitment_only(use_dust: bool) {
5769 let chanmon_cfgs = create_chanmon_cfgs(2);
5770 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
5771 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
5772 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
5773 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5774 let logger = test_utils::TestLogger::new();
5776 let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
5777 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
5778 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &Vec::new(), if use_dust { 50000 } else { 3000000 }, TEST_FINAL_CLTV, &logger).unwrap();
5779 nodes[0].node.send_payment(&route, payment_hash, &None).unwrap();
5780 check_added_monitors!(nodes[0], 1);
5782 let _as_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
5784 // As far as A is concerned, the HTLC is now present only in the latest remote commitment
5785 // transaction, however it is not in A's latest local commitment, so we can just broadcast that
5786 // to "time out" the HTLC.
5788 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5790 for i in 1..TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + CHAN_CONFIRM_DEPTH + 1 {
5791 nodes[0].block_notifier.block_connected(&Block { header, txdata: Vec::new()}, i);
5792 header.prev_blockhash = header.bitcoin_hash();
5794 test_txn_broadcast(&nodes[0], &chan, None, HTLCType::NONE);
5795 check_closed_broadcast!(nodes[0], false);
5796 check_added_monitors!(nodes[0], 1);
5799 fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no_close: bool) {
5800 let chanmon_cfgs = create_chanmon_cfgs(3);
5801 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
5802 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
5803 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
5804 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
5806 // Fail the payment, but don't deliver A's final RAA, resulting in the HTLC only being present
5807 // in B's previous (unrevoked) commitment transaction, but none of A's commitment transactions.
5808 // Also optionally test that we *don't* fail the channel in case the commitment transaction was
5809 // actually revoked.
5810 let htlc_value = if use_dust { 50000 } else { 3000000 };
5811 let (_, our_payment_hash) = route_payment(&nodes[0], &[&nodes[1]], htlc_value);
5812 assert!(nodes[1].node.fail_htlc_backwards(&our_payment_hash, &None));
5813 expect_pending_htlcs_forwardable!(nodes[1]);
5814 check_added_monitors!(nodes[1], 1);
5816 let bs_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
5817 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.update_fail_htlcs[0]);
5818 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_updates.commitment_signed);
5819 check_added_monitors!(nodes[0], 1);
5820 let as_updates = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
5821 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_updates.0);
5822 check_added_monitors!(nodes[1], 1);
5823 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_updates.1);
5824 check_added_monitors!(nodes[1], 1);
5825 let bs_revoke_and_ack = get_event_msg!(nodes[1], MessageSendEvent::SendRevokeAndACK, nodes[0].node.get_our_node_id());
5827 if check_revoke_no_close {
5828 nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_and_ack);
5829 check_added_monitors!(nodes[0], 1);
5832 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5833 for i in 1..TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + CHAN_CONFIRM_DEPTH + 1 {
5834 nodes[0].block_notifier.block_connected_checked(&header, i, &Vec::new(), &Vec::new());
5835 header.prev_blockhash = header.bitcoin_hash();
5837 if !check_revoke_no_close {
5838 test_txn_broadcast(&nodes[0], &chan, None, HTLCType::NONE);
5839 check_closed_broadcast!(nodes[0], false);
5840 check_added_monitors!(nodes[0], 1);
5842 expect_payment_failed!(nodes[0], our_payment_hash, true);
5846 // Test that we close channels on-chain when broadcastable HTLCs reach their timeout window.
5847 // There are only a few cases to test here:
5848 // * its not really normative behavior, but we test that below-dust HTLCs "included" in
5849 // broadcastable commitment transactions result in channel closure,
5850 // * its included in an unrevoked-but-previous remote commitment transaction,
5851 // * its included in the latest remote or local commitment transactions.
5852 // We test each of the three possible commitment transactions individually and use both dust and
5854 // Note that we don't bother testing both outbound and inbound HTLC failures for each case, and we
5855 // assume they are handled the same across all six cases, as both outbound and inbound failures are
5856 // tested for at least one of the cases in other tests.
5858 fn htlc_claim_single_commitment_only_a() {
5859 do_htlc_claim_local_commitment_only(true);
5860 do_htlc_claim_local_commitment_only(false);
5862 do_htlc_claim_current_remote_commitment_only(true);
5863 do_htlc_claim_current_remote_commitment_only(false);
5867 fn htlc_claim_single_commitment_only_b() {
5868 do_htlc_claim_previous_remote_commitment_only(true, false);
5869 do_htlc_claim_previous_remote_commitment_only(false, false);
5870 do_htlc_claim_previous_remote_commitment_only(true, true);
5871 do_htlc_claim_previous_remote_commitment_only(false, true);
5874 fn run_onion_failure_test<F1,F2>(_name: &str, test_case: u8, nodes: &Vec<Node>, route: &Route, payment_hash: &PaymentHash, callback_msg: F1, callback_node: F2, expected_retryable: bool, expected_error_code: Option<u16>, expected_channel_update: Option<HTLCFailChannelUpdate>)
5875 where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC),
5878 run_onion_failure_test_with_fail_intercept(_name, test_case, nodes, route, payment_hash, callback_msg, |_|{}, callback_node, expected_retryable, expected_error_code, expected_channel_update);
5882 // 0: node1 fails backward
5883 // 1: final node fails backward
5884 // 2: payment completed but the user rejects the payment
5885 // 3: final node fails backward (but tamper onion payloads from node0)
5886 // 100: trigger error in the intermediate node and tamper returning fail_htlc
5887 // 200: trigger error in the final node and tamper returning fail_htlc
5888 fn run_onion_failure_test_with_fail_intercept<F1,F2,F3>(_name: &str, test_case: u8, nodes: &Vec<Node>, route: &Route, payment_hash: &PaymentHash, mut callback_msg: F1, mut callback_fail: F2, mut callback_node: F3, expected_retryable: bool, expected_error_code: Option<u16>, expected_channel_update: Option<HTLCFailChannelUpdate>)
5889 where F1: for <'a> FnMut(&'a mut msgs::UpdateAddHTLC),
5890 F2: for <'a> FnMut(&'a mut msgs::UpdateFailHTLC),
5894 // reset block height
5895 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
5896 for ix in 0..nodes.len() {
5897 nodes[ix].block_notifier.block_connected_checked(&header, 1, &[], &[]);
5900 macro_rules! expect_event {
5901 ($node: expr, $event_type: path) => {{
5902 let events = $node.node.get_and_clear_pending_events();
5903 assert_eq!(events.len(), 1);
5905 $event_type { .. } => {},
5906 _ => panic!("Unexpected event"),
5911 macro_rules! expect_htlc_forward {
5913 expect_event!($node, Event::PendingHTLCsForwardable);
5914 $node.node.process_pending_htlc_forwards();
5918 // 0 ~~> 2 send payment
5919 nodes[0].node.send_payment(&route, payment_hash.clone(), &None).unwrap();
5920 check_added_monitors!(nodes[0], 1);
5921 let update_0 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
5922 // temper update_add (0 => 1)
5923 let mut update_add_0 = update_0.update_add_htlcs[0].clone();
5924 if test_case == 0 || test_case == 3 || test_case == 100 {
5925 callback_msg(&mut update_add_0);
5928 // 0 => 1 update_add & CS
5929 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add_0);
5930 commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true);
5932 let update_1_0 = match test_case {
5933 0|100 => { // intermediate node failure; fail backward to 0
5934 let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
5935 assert!(update_1_0.update_fail_htlcs.len()+update_1_0.update_fail_malformed_htlcs.len()==1 && (update_1_0.update_fail_htlcs.len()==1 || update_1_0.update_fail_malformed_htlcs.len()==1));
5938 1|2|3|200 => { // final node failure; forwarding to 2
5939 assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
5941 if test_case != 200 {
5944 expect_htlc_forward!(&nodes[1]);
5946 let update_1 = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
5947 check_added_monitors!(&nodes[1], 1);
5948 assert_eq!(update_1.update_add_htlcs.len(), 1);
5949 // tamper update_add (1 => 2)
5950 let mut update_add_1 = update_1.update_add_htlcs[0].clone();
5951 if test_case != 3 && test_case != 200 {
5952 callback_msg(&mut update_add_1);
5956 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_1);
5957 commitment_signed_dance!(nodes[2], nodes[1], update_1.commitment_signed, false, true);
5959 if test_case == 2 || test_case == 200 {
5960 expect_htlc_forward!(&nodes[2]);
5961 expect_event!(&nodes[2], Event::PaymentReceived);
5963 expect_pending_htlcs_forwardable!(nodes[2]);
5966 let update_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
5967 if test_case == 2 || test_case == 200 {
5968 check_added_monitors!(&nodes[2], 1);
5970 assert!(update_2_1.update_fail_htlcs.len() == 1);
5972 let mut fail_msg = update_2_1.update_fail_htlcs[0].clone();
5973 if test_case == 200 {
5974 callback_fail(&mut fail_msg);
5978 nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &fail_msg);
5979 commitment_signed_dance!(nodes[1], nodes[2], update_2_1.commitment_signed, true);
5981 // backward fail on 1
5982 let update_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
5983 assert!(update_1_0.update_fail_htlcs.len() == 1);
5986 _ => unreachable!(),
5989 // 1 => 0 commitment_signed_dance
5990 if update_1_0.update_fail_htlcs.len() > 0 {
5991 let mut fail_msg = update_1_0.update_fail_htlcs[0].clone();
5992 if test_case == 100 {
5993 callback_fail(&mut fail_msg);
5995 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg);
5997 nodes[0].node.handle_update_fail_malformed_htlc(&nodes[1].node.get_our_node_id(), &update_1_0.update_fail_malformed_htlcs[0]);
6000 commitment_signed_dance!(nodes[0], nodes[1], update_1_0.commitment_signed, false, true);
6002 let events = nodes[0].node.get_and_clear_pending_events();
6003 assert_eq!(events.len(), 1);
6004 if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code, error_data: _ } = &events[0] {
6005 assert_eq!(*rejected_by_dest, !expected_retryable);
6006 assert_eq!(*error_code, expected_error_code);
6008 panic!("Uexpected event");
6011 let events = nodes[0].node.get_and_clear_pending_msg_events();
6012 if expected_channel_update.is_some() {
6013 assert_eq!(events.len(), 1);
6015 MessageSendEvent::PaymentFailureNetworkUpdate { ref update } => {
6017 &HTLCFailChannelUpdate::ChannelUpdateMessage { .. } => {
6018 if let HTLCFailChannelUpdate::ChannelUpdateMessage { .. } = expected_channel_update.unwrap() {} else {
6019 panic!("channel_update not found!");
6022 &HTLCFailChannelUpdate::ChannelClosed { ref short_channel_id, ref is_permanent } => {
6023 if let HTLCFailChannelUpdate::ChannelClosed { short_channel_id: ref expected_short_channel_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
6024 assert!(*short_channel_id == *expected_short_channel_id);
6025 assert!(*is_permanent == *expected_is_permanent);
6027 panic!("Unexpected message event");
6030 &HTLCFailChannelUpdate::NodeFailure { ref node_id, ref is_permanent } => {
6031 if let HTLCFailChannelUpdate::NodeFailure { node_id: ref expected_node_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
6032 assert!(*node_id == *expected_node_id);
6033 assert!(*is_permanent == *expected_is_permanent);
6035 panic!("Unexpected message event");
6040 _ => panic!("Unexpected message event"),
6043 assert_eq!(events.len(), 0);
6047 impl msgs::ChannelUpdate {
6048 fn dummy() -> msgs::ChannelUpdate {
6049 use bitcoin::secp256k1::ffi::Signature as FFISignature;
6050 use bitcoin::secp256k1::Signature;
6051 msgs::ChannelUpdate {
6052 signature: Signature::from(FFISignature::new()),
6053 contents: msgs::UnsignedChannelUpdate {
6054 chain_hash: BlockHash::hash(&vec![0u8][..]),
6055 short_channel_id: 0,
6058 cltv_expiry_delta: 0,
6059 htlc_minimum_msat: 0,
6060 htlc_maximum_msat: OptionalField::Absent,
6062 fee_proportional_millionths: 0,
6063 excess_data: vec![],
6069 struct BogusOnionHopData {
6072 impl BogusOnionHopData {
6073 fn new(orig: msgs::OnionHopData) -> Self {
6074 Self { data: orig.encode() }
6077 impl Writeable for BogusOnionHopData {
6078 fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
6079 writer.write_all(&self.data[..])
6084 fn test_onion_failure() {
6085 use ln::msgs::ChannelUpdate;
6086 use ln::channelmanager::CLTV_FAR_FAR_AWAY;
6087 use bitcoin::secp256k1;
6089 const BADONION: u16 = 0x8000;
6090 const PERM: u16 = 0x4000;
6091 const NODE: u16 = 0x2000;
6092 const UPDATE: u16 = 0x1000;
6094 let chanmon_cfgs = create_chanmon_cfgs(3);
6095 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
6096 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
6097 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
6098 for node in nodes.iter() {
6099 *node.keys_manager.override_session_priv.lock().unwrap() = Some(SecretKey::from_slice(&[3; 32]).unwrap());
6101 let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()), create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known())];
6102 let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
6103 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6104 let logger = test_utils::TestLogger::new();
6105 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV, &logger).unwrap();
6107 send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 40000, 40_000);
6109 // intermediate node failure
6110 run_onion_failure_test("invalid_realm", 0, &nodes, &route, &payment_hash, |msg| {
6111 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6112 let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
6113 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6114 let (mut onion_payloads, _htlc_msat, _htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, cur_height).unwrap();
6115 let mut new_payloads = Vec::new();
6116 for payload in onion_payloads.drain(..) {
6117 new_payloads.push(BogusOnionHopData::new(payload));
6119 // break the first (non-final) hop payload by swapping the realm (0) byte for a byte
6120 // describing a length-1 TLV payload, which is obviously bogus.
6121 new_payloads[0].data[0] = 1;
6122 msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
6123 }, ||{}, true, Some(PERM|22), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));//XXX incremented channels idx here
6125 // final node failure
6126 run_onion_failure_test("invalid_realm", 3, &nodes, &route, &payment_hash, |msg| {
6127 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6128 let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
6129 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6130 let (mut onion_payloads, _htlc_msat, _htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, cur_height).unwrap();
6131 let mut new_payloads = Vec::new();
6132 for payload in onion_payloads.drain(..) {
6133 new_payloads.push(BogusOnionHopData::new(payload));
6135 // break the last-hop payload by swapping the realm (0) byte for a byte describing a
6136 // length-1 TLV payload, which is obviously bogus.
6137 new_payloads[1].data[0] = 1;
6138 msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
6139 }, ||{}, false, Some(PERM|22), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
6141 // the following three with run_onion_failure_test_with_fail_intercept() test only the origin node
6142 // receiving simulated fail messages
6143 // intermediate node failure
6144 run_onion_failure_test_with_fail_intercept("temporary_node_failure", 100, &nodes, &route, &payment_hash, |msg| {
6146 msg.amount_msat -= 1;
6148 // and tamper returning error message
6149 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6150 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6151 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], NODE|2, &[0;0]);
6152 }, ||{}, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: false}));
6154 // final node failure
6155 run_onion_failure_test_with_fail_intercept("temporary_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
6156 // and tamper returning error message
6157 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6158 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6159 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], NODE|2, &[0;0]);
6161 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
6162 }, true, Some(NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: false}));
6164 // intermediate node failure
6165 run_onion_failure_test_with_fail_intercept("permanent_node_failure", 100, &nodes, &route, &payment_hash, |msg| {
6166 msg.amount_msat -= 1;
6168 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6169 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6170 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|2, &[0;0]);
6171 }, ||{}, true, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: true}));
6173 // final node failure
6174 run_onion_failure_test_with_fail_intercept("permanent_node_failure", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
6175 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6176 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6177 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|2, &[0;0]);
6179 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
6180 }, false, Some(PERM|NODE|2), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: true}));
6182 // intermediate node failure
6183 run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 100, &nodes, &route, &payment_hash, |msg| {
6184 msg.amount_msat -= 1;
6186 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6187 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6188 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|NODE|3, &[0;0]);
6190 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
6191 }, true, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][0].pubkey, is_permanent: true}));
6193 // final node failure
6194 run_onion_failure_test_with_fail_intercept("required_node_feature_missing", 200, &nodes, &route, &payment_hash, |_msg| {}, |msg| {
6195 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6196 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6197 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[1].shared_secret[..], PERM|NODE|3, &[0;0]);
6199 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
6200 }, false, Some(PERM|NODE|3), Some(msgs::HTLCFailChannelUpdate::NodeFailure{node_id: route.paths[0][1].pubkey, is_permanent: true}));
6202 run_onion_failure_test("invalid_onion_version", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.version = 1; }, ||{}, true,
6203 Some(BADONION|PERM|4), None);
6205 run_onion_failure_test("invalid_onion_hmac", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.hmac = [3; 32]; }, ||{}, true,
6206 Some(BADONION|PERM|5), None);
6208 run_onion_failure_test("invalid_onion_key", 0, &nodes, &route, &payment_hash, |msg| { msg.onion_routing_packet.public_key = Err(secp256k1::Error::InvalidPublicKey);}, ||{}, true,
6209 Some(BADONION|PERM|6), None);
6211 run_onion_failure_test_with_fail_intercept("temporary_channel_failure", 100, &nodes, &route, &payment_hash, |msg| {
6212 msg.amount_msat -= 1;
6214 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6215 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6216 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], UPDATE|7, &ChannelUpdate::dummy().encode_with_len()[..]);
6217 }, ||{}, true, Some(UPDATE|7), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
6219 run_onion_failure_test_with_fail_intercept("permanent_channel_failure", 100, &nodes, &route, &payment_hash, |msg| {
6220 msg.amount_msat -= 1;
6222 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6223 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6224 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|8, &[0;0]);
6225 // short_channel_id from the processing node
6226 }, ||{}, true, Some(PERM|8), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
6228 run_onion_failure_test_with_fail_intercept("required_channel_feature_missing", 100, &nodes, &route, &payment_hash, |msg| {
6229 msg.amount_msat -= 1;
6231 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6232 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6233 msg.reason = onion_utils::build_first_hop_failure_packet(&onion_keys[0].shared_secret[..], PERM|9, &[0;0]);
6234 // short_channel_id from the processing node
6235 }, ||{}, true, Some(PERM|9), Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: channels[1].0.contents.short_channel_id, is_permanent: true}));
6237 let mut bogus_route = route.clone();
6238 bogus_route.paths[0][1].short_channel_id -= 1;
6239 run_onion_failure_test("unknown_next_peer", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(PERM|10),
6240 Some(msgs::HTLCFailChannelUpdate::ChannelClosed{short_channel_id: bogus_route.paths[0][1].short_channel_id, is_permanent:true}));
6242 let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_their_htlc_minimum_msat() - 1;
6243 let mut bogus_route = route.clone();
6244 let route_len = bogus_route.paths[0].len();
6245 bogus_route.paths[0][route_len-1].fee_msat = amt_to_forward;
6246 run_onion_failure_test("amount_below_minimum", 0, &nodes, &bogus_route, &payment_hash, |_| {}, ||{}, true, Some(UPDATE|11), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
6248 //TODO: with new config API, we will be able to generate both valid and
6249 //invalid channel_update cases.
6250 run_onion_failure_test("fee_insufficient", 0, &nodes, &route, &payment_hash, |msg| {
6251 msg.amount_msat -= 1;
6252 }, || {}, true, Some(UPDATE|12), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true}));
6254 run_onion_failure_test("incorrect_cltv_expiry", 0, &nodes, &route, &payment_hash, |msg| {
6255 // need to violate: cltv_expiry - cltv_expiry_delta >= outgoing_cltv_value
6256 msg.cltv_expiry -= 1;
6257 }, || {}, true, Some(UPDATE|13), Some(msgs::HTLCFailChannelUpdate::ChannelClosed { short_channel_id: channels[0].0.contents.short_channel_id, is_permanent: true}));
6259 run_onion_failure_test("expiry_too_soon", 0, &nodes, &route, &payment_hash, |msg| {
6260 let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS + 1;
6261 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
6263 nodes[1].block_notifier.block_connected_checked(&header, height, &[], &[]);
6264 }, ||{}, true, Some(UPDATE|14), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
6266 run_onion_failure_test("unknown_payment_hash", 2, &nodes, &route, &payment_hash, |_| {}, || {
6267 nodes[2].node.fail_htlc_backwards(&payment_hash, &None);
6268 }, false, Some(PERM|15), None);
6270 run_onion_failure_test("final_expiry_too_soon", 1, &nodes, &route, &payment_hash, |msg| {
6271 let height = msg.cltv_expiry - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS + 1;
6272 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
6274 nodes[2].block_notifier.block_connected_checked(&header, height, &[], &[]);
6275 }, || {}, true, Some(17), None);
6277 run_onion_failure_test("final_incorrect_cltv_expiry", 1, &nodes, &route, &payment_hash, |_| {}, || {
6278 for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
6279 for f in pending_forwards.iter_mut() {
6281 &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
6282 forward_info.outgoing_cltv_value += 1,
6287 }, true, Some(18), None);
6289 run_onion_failure_test("final_incorrect_htlc_amount", 1, &nodes, &route, &payment_hash, |_| {}, || {
6290 // violate amt_to_forward > msg.amount_msat
6291 for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
6292 for f in pending_forwards.iter_mut() {
6294 &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
6295 forward_info.amt_to_forward -= 1,
6300 }, true, Some(19), None);
6302 run_onion_failure_test("channel_disabled", 0, &nodes, &route, &payment_hash, |_| {}, || {
6303 // disconnect event to the channel between nodes[1] ~ nodes[2]
6304 nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), false);
6305 nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
6306 }, true, Some(UPDATE|20), Some(msgs::HTLCFailChannelUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy()}));
6307 reconnect_nodes(&nodes[1], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
6309 run_onion_failure_test("expiry_too_far", 0, &nodes, &route, &payment_hash, |msg| {
6310 let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
6311 let mut route = route.clone();
6313 route.paths[0][1].cltv_expiry_delta += CLTV_FAR_FAR_AWAY + route.paths[0][0].cltv_expiry_delta + 1;
6314 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
6315 let (onion_payloads, _, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 40000, &None, height).unwrap();
6316 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
6317 msg.cltv_expiry = htlc_cltv;
6318 msg.onion_routing_packet = onion_packet;
6319 }, ||{}, true, Some(21), None);
6324 fn bolt2_open_channel_sending_node_checks_part1() { //This test needs to be on its own as we are catching a panic
6325 let chanmon_cfgs = create_chanmon_cfgs(2);
6326 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6327 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6328 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6329 //Force duplicate channel ids
6330 for node in nodes.iter() {
6331 *node.keys_manager.override_channel_id_priv.lock().unwrap() = Some([0; 32]);
6334 // BOLT #2 spec: Sending node must ensure temporary_channel_id is unique from any other channel ID with the same peer.
6335 let channel_value_satoshis=10000;
6336 let push_msat=10001;
6337 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).unwrap();
6338 let node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
6339 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &node0_to_1_send_open_channel);
6341 //Create a second channel with a channel_id collision
6342 assert!(nodes[0].node.create_channel(nodes[0].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
6346 fn bolt2_open_channel_sending_node_checks_part2() {
6347 let chanmon_cfgs = create_chanmon_cfgs(2);
6348 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6349 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6350 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6352 // BOLT #2 spec: Sending node must set funding_satoshis to less than 2^24 satoshis
6353 let channel_value_satoshis=2^24;
6354 let push_msat=10001;
6355 assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
6357 // BOLT #2 spec: Sending node must set push_msat to equal or less than 1000 * funding_satoshis
6358 let channel_value_satoshis=10000;
6359 // Test when push_msat is equal to 1000 * funding_satoshis.
6360 let push_msat=1000*channel_value_satoshis+1;
6361 assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
6363 // BOLT #2 spec: Sending node must set set channel_reserve_satoshis greater than or equal to dust_limit_satoshis
6364 let channel_value_satoshis=10000;
6365 let push_msat=10001;
6366 assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_ok()); //Create a valid channel
6367 let node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
6368 assert!(node0_to_1_send_open_channel.channel_reserve_satoshis>=node0_to_1_send_open_channel.dust_limit_satoshis);
6370 // BOLT #2 spec: Sending node must set undefined bits in channel_flags to 0
6371 // Only the least-significant bit of channel_flags is currently defined resulting in channel_flags only having one of two possible states 0 or 1
6372 assert!(node0_to_1_send_open_channel.channel_flags<=1);
6374 // BOLT #2 spec: Sending node should set to_self_delay sufficient to ensure the sender can irreversibly spend a commitment transaction output, in case of misbehaviour by the receiver.
6375 assert!(BREAKDOWN_TIMEOUT>0);
6376 assert!(node0_to_1_send_open_channel.to_self_delay==BREAKDOWN_TIMEOUT);
6378 // BOLT #2 spec: Sending node must ensure the chain_hash value identifies the chain it wishes to open the channel within.
6379 let chain_hash=genesis_block(Network::Testnet).header.bitcoin_hash();
6380 assert_eq!(node0_to_1_send_open_channel.chain_hash,chain_hash);
6382 // BOLT #2 spec: Sending node must set funding_pubkey, revocation_basepoint, htlc_basepoint, payment_basepoint, and delayed_payment_basepoint to valid DER-encoded, compressed, secp256k1 pubkeys.
6383 assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.funding_pubkey.serialize()).is_ok());
6384 assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.revocation_basepoint.serialize()).is_ok());
6385 assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.htlc_basepoint.serialize()).is_ok());
6386 assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.payment_point.serialize()).is_ok());
6387 assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.delayed_payment_basepoint.serialize()).is_ok());
6390 // BOLT 2 Requirements for the Sender when constructing and sending an update_add_htlc message.
6391 // BOLT 2 Requirement: MUST NOT offer amount_msat it cannot pay for in the remote commitment transaction at the current feerate_per_kw (see "Updating Fees") while maintaining its channel reserve.
6392 //TODO: I don't believe this is explicitly enforced when sending an HTLC but as the Fee aspect of the BOLT specs is in flux leaving this as a TODO.
6395 fn test_update_add_htlc_bolt2_sender_value_below_minimum_msat() {
6396 //BOLT2 Requirement: MUST NOT offer amount_msat below the receiving node's htlc_minimum_msat (same validation check catches both of these)
6397 let chanmon_cfgs = create_chanmon_cfgs(2);
6398 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6399 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6400 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6401 let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6403 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6404 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6405 let logger = test_utils::TestLogger::new();
6406 let mut route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
6407 route.paths[0][0].fee_msat = 100;
6409 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
6410 assert!(regex::Regex::new(r"Cannot send less than their minimum HTLC value \(\d+\)").unwrap().is_match(err)));
6411 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
6412 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send less than their minimum HTLC value".to_string(), 1);
6416 fn test_update_add_htlc_bolt2_sender_zero_value_msat() {
6417 //BOLT2 Requirement: MUST offer amount_msat greater than 0.
6418 let chanmon_cfgs = create_chanmon_cfgs(2);
6419 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6420 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6421 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6422 let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6423 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6425 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6426 let logger = test_utils::TestLogger::new();
6427 let mut route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
6428 route.paths[0][0].fee_msat = 0;
6429 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
6430 assert_eq!(err, "Cannot send 0-msat HTLC"));
6432 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
6433 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send 0-msat HTLC".to_string(), 1);
6437 fn test_update_add_htlc_bolt2_receiver_zero_value_msat() {
6438 //BOLT2 Requirement: MUST offer amount_msat greater than 0.
6439 let chanmon_cfgs = create_chanmon_cfgs(2);
6440 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6441 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6442 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6443 let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6445 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6446 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6447 let logger = test_utils::TestLogger::new();
6448 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
6449 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6450 check_added_monitors!(nodes[0], 1);
6451 let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6452 updates.update_add_htlcs[0].amount_msat = 0;
6454 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6455 nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Remote side tried to send a 0-msat HTLC".to_string(), 1);
6456 check_closed_broadcast!(nodes[1], true).unwrap();
6457 check_added_monitors!(nodes[1], 1);
6461 fn test_update_add_htlc_bolt2_sender_cltv_expiry_too_high() {
6462 //BOLT 2 Requirement: MUST set cltv_expiry less than 500000000.
6463 //It is enforced when constructing a route.
6464 let chanmon_cfgs = create_chanmon_cfgs(2);
6465 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6466 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6467 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6468 let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 0, InitFeatures::known(), InitFeatures::known());
6469 let logger = test_utils::TestLogger::new();
6471 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6473 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6474 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000000, 500000001, &logger).unwrap();
6475 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::RouteError { ref err },
6476 assert_eq!(err, &"Channel CLTV overflowed?"));
6480 fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_num_and_htlc_id_increment() {
6481 //BOLT 2 Requirement: if result would be offering more than the remote's max_accepted_htlcs HTLCs, in the remote commitment transaction: MUST NOT add an HTLC.
6482 //BOLT 2 Requirement: for the first HTLC it offers MUST set id to 0.
6483 //BOLT 2 Requirement: MUST increase the value of id by 1 for each successive offer.
6484 let chanmon_cfgs = create_chanmon_cfgs(2);
6485 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6486 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6487 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6488 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0, InitFeatures::known(), InitFeatures::known());
6489 let max_accepted_htlcs = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().their_max_accepted_htlcs as u64;
6491 let logger = test_utils::TestLogger::new();
6492 for i in 0..max_accepted_htlcs {
6493 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6494 let payment_event = {
6495 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6496 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
6497 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6498 check_added_monitors!(nodes[0], 1);
6500 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
6501 assert_eq!(events.len(), 1);
6502 if let MessageSendEvent::UpdateHTLCs { node_id: _, updates: msgs::CommitmentUpdate{ update_add_htlcs: ref htlcs, .. }, } = events[0] {
6503 assert_eq!(htlcs[0].htlc_id, i);
6507 SendEvent::from_event(events.remove(0))
6509 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
6510 check_added_monitors!(nodes[1], 0);
6511 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
6513 expect_pending_htlcs_forwardable!(nodes[1]);
6514 expect_payment_received!(nodes[1], our_payment_hash, 100000);
6516 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6517 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6518 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
6519 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
6520 assert!(regex::Regex::new(r"Cannot push more than their max accepted HTLCs \(\d+\)").unwrap().is_match(err)));
6522 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
6523 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot push more than their max accepted HTLCs".to_string(), 1);
6527 fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() {
6528 //BOLT 2 Requirement: if the sum of total offered HTLCs would exceed the remote's max_htlc_value_in_flight_msat: MUST NOT add an HTLC.
6529 let chanmon_cfgs = create_chanmon_cfgs(2);
6530 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6531 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6532 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6533 let channel_value = 100000;
6534 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 0, InitFeatures::known(), InitFeatures::known());
6535 let max_in_flight = get_channel_value_stat!(nodes[0], chan.2).their_max_htlc_value_in_flight_msat;
6537 send_payment(&nodes[0], &vec!(&nodes[1])[..], max_in_flight, max_in_flight);
6539 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6540 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6541 let logger = test_utils::TestLogger::new();
6542 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], max_in_flight+1, TEST_FINAL_CLTV, &logger).unwrap();
6543 unwrap_send_err!(nodes[0].node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
6544 assert!(regex::Regex::new(r"Cannot send value that would put us over the max HTLC value in flight our peer will accept \(\d+\)").unwrap().is_match(err)));
6546 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
6547 nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put us over the max HTLC value in flight our peer will accept".to_string(), 1);
6549 send_payment(&nodes[0], &[&nodes[1]], max_in_flight, max_in_flight);
6552 // BOLT 2 Requirements for the Receiver when handling an update_add_htlc message.
6554 fn test_update_add_htlc_bolt2_receiver_check_amount_received_more_than_min() {
6555 //BOLT2 Requirement: receiving an amount_msat equal to 0, OR less than its own htlc_minimum_msat -> SHOULD fail the channel.
6556 let chanmon_cfgs = create_chanmon_cfgs(2);
6557 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6558 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6559 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6560 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6561 let htlc_minimum_msat: u64;
6563 let chan_lock = nodes[0].node.channel_state.lock().unwrap();
6564 let channel = chan_lock.by_id.get(&chan.2).unwrap();
6565 htlc_minimum_msat = channel.get_our_htlc_minimum_msat();
6568 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6569 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6570 let logger = test_utils::TestLogger::new();
6571 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], htlc_minimum_msat, TEST_FINAL_CLTV, &logger).unwrap();
6572 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6573 check_added_monitors!(nodes[0], 1);
6574 let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6575 updates.update_add_htlcs[0].amount_msat = htlc_minimum_msat-1;
6576 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6577 assert!(nodes[1].node.list_channels().is_empty());
6578 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
6579 assert!(regex::Regex::new(r"Remote side tried to send less than our minimum HTLC value\. Lower limit: \(\d+\)\. Actual: \(\d+\)").unwrap().is_match(err_msg.data.as_str()));
6580 check_added_monitors!(nodes[1], 1);
6584 fn test_update_add_htlc_bolt2_receiver_sender_can_afford_amount_sent() {
6585 //BOLT2 Requirement: receiving an amount_msat that the sending node cannot afford at the current feerate_per_kw (while maintaining its channel reserve): SHOULD fail the channel
6586 let chanmon_cfgs = create_chanmon_cfgs(2);
6587 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6588 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6589 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6590 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6591 let logger = test_utils::TestLogger::new();
6593 let chan_stat = get_channel_value_stat!(nodes[0], chan.2);
6594 let channel_reserve = chan_stat.channel_reserve_msat;
6595 let feerate = get_feerate!(nodes[0], chan.2);
6596 // The 2* and +1 are for the fee spike reserve.
6597 let commit_tx_fee_outbound = 2 * commit_tx_fee_msat(feerate, 1 + 1);
6599 let max_can_send = 5000000 - channel_reserve - commit_tx_fee_outbound;
6600 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6601 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6602 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], max_can_send, TEST_FINAL_CLTV, &logger).unwrap();
6603 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6604 check_added_monitors!(nodes[0], 1);
6605 let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6607 // Even though channel-initiator senders are required to respect the fee_spike_reserve,
6608 // at this time channel-initiatee receivers are not required to enforce that senders
6609 // respect the fee_spike_reserve.
6610 updates.update_add_htlcs[0].amount_msat = max_can_send + commit_tx_fee_outbound + 1;
6611 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6613 assert!(nodes[1].node.list_channels().is_empty());
6614 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
6615 assert_eq!(err_msg.data, "Remote HTLC add would put them under remote reserve value");
6616 check_added_monitors!(nodes[1], 1);
6620 fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
6621 //BOLT 2 Requirement: if a sending node adds more than its max_accepted_htlcs HTLCs to its local commitment transaction: SHOULD fail the channel
6622 //BOLT 2 Requirement: MUST allow multiple HTLCs with the same payment_hash.
6623 let chanmon_cfgs = create_chanmon_cfgs(2);
6624 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6625 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6626 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6627 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6628 let logger = test_utils::TestLogger::new();
6630 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6631 let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
6633 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6634 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 3999999, TEST_FINAL_CLTV, &logger).unwrap();
6636 let cur_height = nodes[0].node.latest_block_height.load(Ordering::Acquire) as u32 + 1;
6637 let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::signing_only(), &route.paths[0], &session_priv).unwrap();
6638 let (onion_payloads, _htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0], 3999999, &None, cur_height).unwrap();
6639 let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash);
6641 let mut msg = msgs::UpdateAddHTLC {
6645 payment_hash: our_payment_hash,
6646 cltv_expiry: htlc_cltv,
6647 onion_routing_packet: onion_packet.clone(),
6650 for i in 0..super::channel::OUR_MAX_HTLCS {
6651 msg.htlc_id = i as u64;
6652 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg);
6654 msg.htlc_id = (super::channel::OUR_MAX_HTLCS) as u64;
6655 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg);
6657 assert!(nodes[1].node.list_channels().is_empty());
6658 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
6659 assert!(regex::Regex::new(r"Remote tried to push more than our max accepted HTLCs \(\d+\)").unwrap().is_match(err_msg.data.as_str()));
6660 check_added_monitors!(nodes[1], 1);
6664 fn test_update_add_htlc_bolt2_receiver_check_max_in_flight_msat() {
6665 //OR adds more than its max_htlc_value_in_flight_msat worth of offered HTLCs to its local commitment transaction: SHOULD fail the channel
6666 let chanmon_cfgs = create_chanmon_cfgs(2);
6667 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6668 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6669 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6670 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, InitFeatures::known(), InitFeatures::known());
6671 let logger = test_utils::TestLogger::new();
6673 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6674 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6675 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6676 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6677 check_added_monitors!(nodes[0], 1);
6678 let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6679 updates.update_add_htlcs[0].amount_msat = get_channel_value_stat!(nodes[1], chan.2).their_max_htlc_value_in_flight_msat + 1;
6680 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6682 assert!(nodes[1].node.list_channels().is_empty());
6683 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
6684 assert!(regex::Regex::new("Remote HTLC add would put them over our max HTLC value").unwrap().is_match(err_msg.data.as_str()));
6685 check_added_monitors!(nodes[1], 1);
6689 fn test_update_add_htlc_bolt2_receiver_check_cltv_expiry() {
6690 //BOLT2 Requirement: if sending node sets cltv_expiry to greater or equal to 500000000: SHOULD fail the channel.
6691 let chanmon_cfgs = create_chanmon_cfgs(2);
6692 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6693 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6694 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6695 let logger = test_utils::TestLogger::new();
6697 create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, InitFeatures::known(), InitFeatures::known());
6698 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6699 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6700 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6701 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6702 check_added_monitors!(nodes[0], 1);
6703 let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6704 updates.update_add_htlcs[0].cltv_expiry = 500000000;
6705 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6707 assert!(nodes[1].node.list_channels().is_empty());
6708 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
6709 assert_eq!(err_msg.data,"Remote provided CLTV expiry in seconds instead of block height");
6710 check_added_monitors!(nodes[1], 1);
6714 fn test_update_add_htlc_bolt2_receiver_check_repeated_id_ignore() {
6715 //BOLT 2 requirement: if the sender did not previously acknowledge the commitment of that HTLC: MUST ignore a repeated id value after a reconnection.
6716 // We test this by first testing that that repeated HTLCs pass commitment signature checks
6717 // after disconnect and that non-sequential htlc_ids result in a channel failure.
6718 let chanmon_cfgs = create_chanmon_cfgs(2);
6719 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6720 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6721 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6722 let logger = test_utils::TestLogger::new();
6724 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
6725 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6726 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6727 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6728 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6729 check_added_monitors!(nodes[0], 1);
6730 let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6731 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6733 //Disconnect and Reconnect
6734 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
6735 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
6736 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
6737 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
6738 assert_eq!(reestablish_1.len(), 1);
6739 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
6740 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
6741 assert_eq!(reestablish_2.len(), 1);
6742 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
6743 handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
6744 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
6745 handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
6748 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6749 assert_eq!(updates.commitment_signed.htlc_signatures.len(), 1);
6750 nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &updates.commitment_signed);
6751 check_added_monitors!(nodes[1], 1);
6752 let _bs_responses = get_revoke_commit_msgs!(nodes[1], nodes[0].node.get_our_node_id());
6754 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6756 assert!(nodes[1].node.list_channels().is_empty());
6757 let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
6758 assert!(regex::Regex::new(r"Remote skipped HTLC ID \(skipped ID: \d+\)").unwrap().is_match(err_msg.data.as_str()));
6759 check_added_monitors!(nodes[1], 1);
6763 fn test_update_fulfill_htlc_bolt2_update_fulfill_htlc_before_commitment() {
6764 //BOLT 2 Requirement: until the corresponding HTLC is irrevocably committed in both sides' commitment transactions: MUST NOT send an update_fulfill_htlc, update_fail_htlc, or update_fail_malformed_htlc.
6766 let chanmon_cfgs = create_chanmon_cfgs(2);
6767 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6768 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6769 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6770 let logger = test_utils::TestLogger::new();
6771 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
6772 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6773 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6774 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6775 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6777 check_added_monitors!(nodes[0], 1);
6778 let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6779 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6781 let update_msg = msgs::UpdateFulfillHTLC{
6784 payment_preimage: our_payment_preimage,
6787 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_msg);
6789 assert!(nodes[0].node.list_channels().is_empty());
6790 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
6791 assert!(regex::Regex::new(r"Remote tried to fulfill/fail HTLC \(\d+\) before it had been committed").unwrap().is_match(err_msg.data.as_str()));
6792 check_added_monitors!(nodes[0], 1);
6796 fn test_update_fulfill_htlc_bolt2_update_fail_htlc_before_commitment() {
6797 //BOLT 2 Requirement: until the corresponding HTLC is irrevocably committed in both sides' commitment transactions: MUST NOT send an update_fulfill_htlc, update_fail_htlc, or update_fail_malformed_htlc.
6799 let chanmon_cfgs = create_chanmon_cfgs(2);
6800 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6801 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6802 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6803 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
6804 let logger = test_utils::TestLogger::new();
6806 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6807 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6808 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6809 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6810 check_added_monitors!(nodes[0], 1);
6811 let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6812 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6814 let update_msg = msgs::UpdateFailHTLC{
6817 reason: msgs::OnionErrorPacket { data: Vec::new()},
6820 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_msg);
6822 assert!(nodes[0].node.list_channels().is_empty());
6823 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
6824 assert!(regex::Regex::new(r"Remote tried to fulfill/fail HTLC \(\d+\) before it had been committed").unwrap().is_match(err_msg.data.as_str()));
6825 check_added_monitors!(nodes[0], 1);
6829 fn test_update_fulfill_htlc_bolt2_update_fail_malformed_htlc_before_commitment() {
6830 //BOLT 2 Requirement: until the corresponding HTLC is irrevocably committed in both sides' commitment transactions: MUST NOT send an update_fulfill_htlc, update_fail_htlc, or update_fail_malformed_htlc.
6832 let chanmon_cfgs = create_chanmon_cfgs(2);
6833 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6834 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6835 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6836 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
6837 let logger = test_utils::TestLogger::new();
6839 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6840 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6841 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6842 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6843 check_added_monitors!(nodes[0], 1);
6844 let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6845 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6847 let update_msg = msgs::UpdateFailMalformedHTLC{
6850 sha256_of_onion: [1; 32],
6851 failure_code: 0x8000,
6854 nodes[0].node.handle_update_fail_malformed_htlc(&nodes[1].node.get_our_node_id(), &update_msg);
6856 assert!(nodes[0].node.list_channels().is_empty());
6857 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
6858 assert!(regex::Regex::new(r"Remote tried to fulfill/fail HTLC \(\d+\) before it had been committed").unwrap().is_match(err_msg.data.as_str()));
6859 check_added_monitors!(nodes[0], 1);
6863 fn test_update_fulfill_htlc_bolt2_incorrect_htlc_id() {
6864 //BOLT 2 Requirement: A receiving node: if the id does not correspond to an HTLC in its current commitment transaction MUST fail the channel.
6866 let chanmon_cfgs = create_chanmon_cfgs(2);
6867 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6868 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6869 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6870 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
6872 let our_payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 100000).0;
6874 nodes[1].node.claim_funds(our_payment_preimage, &None, 100_000);
6875 check_added_monitors!(nodes[1], 1);
6877 let events = nodes[1].node.get_and_clear_pending_msg_events();
6878 assert_eq!(events.len(), 1);
6879 let mut update_fulfill_msg: msgs::UpdateFulfillHTLC = {
6881 MessageSendEvent::UpdateHTLCs { node_id: _ , updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, .. } } => {
6882 assert!(update_add_htlcs.is_empty());
6883 assert_eq!(update_fulfill_htlcs.len(), 1);
6884 assert!(update_fail_htlcs.is_empty());
6885 assert!(update_fail_malformed_htlcs.is_empty());
6886 assert!(update_fee.is_none());
6887 update_fulfill_htlcs[0].clone()
6889 _ => panic!("Unexpected event"),
6893 update_fulfill_msg.htlc_id = 1;
6895 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_msg);
6897 assert!(nodes[0].node.list_channels().is_empty());
6898 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
6899 assert_eq!(err_msg.data, "Remote tried to fulfill/fail an HTLC we couldn't find");
6900 check_added_monitors!(nodes[0], 1);
6904 fn test_update_fulfill_htlc_bolt2_wrong_preimage() {
6905 //BOLT 2 Requirement: A receiving node: if the payment_preimage value in update_fulfill_htlc doesn't SHA256 hash to the corresponding HTLC payment_hash MUST fail the channel.
6907 let chanmon_cfgs = create_chanmon_cfgs(2);
6908 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6909 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6910 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6911 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
6913 let our_payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 100000).0;
6915 nodes[1].node.claim_funds(our_payment_preimage, &None, 100_000);
6916 check_added_monitors!(nodes[1], 1);
6918 let events = nodes[1].node.get_and_clear_pending_msg_events();
6919 assert_eq!(events.len(), 1);
6920 let mut update_fulfill_msg: msgs::UpdateFulfillHTLC = {
6922 MessageSendEvent::UpdateHTLCs { node_id: _ , updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, .. } } => {
6923 assert!(update_add_htlcs.is_empty());
6924 assert_eq!(update_fulfill_htlcs.len(), 1);
6925 assert!(update_fail_htlcs.is_empty());
6926 assert!(update_fail_malformed_htlcs.is_empty());
6927 assert!(update_fee.is_none());
6928 update_fulfill_htlcs[0].clone()
6930 _ => panic!("Unexpected event"),
6934 update_fulfill_msg.payment_preimage = PaymentPreimage([1; 32]);
6936 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_fulfill_msg);
6938 assert!(nodes[0].node.list_channels().is_empty());
6939 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
6940 assert!(regex::Regex::new(r"Remote tried to fulfill HTLC \(\d+\) with an incorrect preimage").unwrap().is_match(err_msg.data.as_str()));
6941 check_added_monitors!(nodes[0], 1);
6945 fn test_update_fulfill_htlc_bolt2_missing_badonion_bit_for_malformed_htlc_message() {
6946 //BOLT 2 Requirement: A receiving node: if the BADONION bit in failure_code is not set for update_fail_malformed_htlc MUST fail the channel.
6948 let chanmon_cfgs = create_chanmon_cfgs(2);
6949 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
6950 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
6951 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
6952 create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, InitFeatures::known(), InitFeatures::known());
6953 let logger = test_utils::TestLogger::new();
6955 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
6956 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
6957 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV, &logger).unwrap();
6958 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
6959 check_added_monitors!(nodes[0], 1);
6961 let mut updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
6962 updates.update_add_htlcs[0].onion_routing_packet.version = 1; //Produce a malformed HTLC message
6964 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
6965 check_added_monitors!(nodes[1], 0);
6966 commitment_signed_dance!(nodes[1], nodes[0], updates.commitment_signed, false, true);
6968 let events = nodes[1].node.get_and_clear_pending_msg_events();
6970 let mut update_msg: msgs::UpdateFailMalformedHTLC = {
6972 MessageSendEvent::UpdateHTLCs { node_id: _ , updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, .. } } => {
6973 assert!(update_add_htlcs.is_empty());
6974 assert!(update_fulfill_htlcs.is_empty());
6975 assert!(update_fail_htlcs.is_empty());
6976 assert_eq!(update_fail_malformed_htlcs.len(), 1);
6977 assert!(update_fee.is_none());
6978 update_fail_malformed_htlcs[0].clone()
6980 _ => panic!("Unexpected event"),
6983 update_msg.failure_code &= !0x8000;
6984 nodes[0].node.handle_update_fail_malformed_htlc(&nodes[1].node.get_our_node_id(), &update_msg);
6986 assert!(nodes[0].node.list_channels().is_empty());
6987 let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
6988 assert_eq!(err_msg.data, "Got update_fail_malformed_htlc with BADONION not set");
6989 check_added_monitors!(nodes[0], 1);
6993 fn test_update_fulfill_htlc_bolt2_after_malformed_htlc_message_must_forward_update_fail_htlc() {
6994 //BOLT 2 Requirement: a receiving node which has an outgoing HTLC canceled by update_fail_malformed_htlc:
6995 // * MUST return an error in the update_fail_htlc sent to the link which originally sent the HTLC, using the failure_code given and setting the data to sha256_of_onion.
6997 let chanmon_cfgs = create_chanmon_cfgs(3);
6998 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
6999 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
7000 let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
7001 create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, InitFeatures::known(), InitFeatures::known());
7002 create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1000000, 1000000, InitFeatures::known(), InitFeatures::known());
7003 let logger = test_utils::TestLogger::new();
7005 let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
7008 let mut payment_event = {
7009 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
7010 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV, &logger).unwrap();
7011 nodes[0].node.send_payment(&route, our_payment_hash, &None).unwrap();
7012 check_added_monitors!(nodes[0], 1);
7013 let mut events = nodes[0].node.get_and_clear_pending_msg_events();
7014 assert_eq!(events.len(), 1);
7015 SendEvent::from_event(events.remove(0))
7017 nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
7018 check_added_monitors!(nodes[1], 0);
7019 commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
7020 expect_pending_htlcs_forwardable!(nodes[1]);
7021 let mut events_2 = nodes[1].node.get_and_clear_pending_msg_events();
7022 assert_eq!(events_2.len(), 1);
7023 check_added_monitors!(nodes[1], 1);
7024 payment_event = SendEvent::from_event(events_2.remove(0));
7025 assert_eq!(payment_event.msgs.len(), 1);
7028 payment_event.msgs[0].onion_routing_packet.version = 1; //Produce a malformed HTLC message
7029 nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
7030 check_added_monitors!(nodes[2], 0);
7031 commitment_signed_dance!(nodes[2], nodes[1], payment_event.commitment_msg, false, true);
7033 let events_3 = nodes[2].node.get_and_clear_pending_msg_events();
7034 assert_eq!(events_3.len(), 1);
7035 let update_msg : (msgs::UpdateFailMalformedHTLC, msgs::CommitmentSigned) = {
7037 MessageSendEvent::UpdateHTLCs { node_id: _ , updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
7038 assert!(update_add_htlcs.is_empty());
7039 assert!(update_fulfill_htlcs.is_empty());
7040 assert!(update_fail_htlcs.is_empty());
7041 assert_eq!(update_fail_malformed_htlcs.len(), 1);
7042 assert!(update_fee.is_none());
7043 (update_fail_malformed_htlcs[0].clone(), commitment_signed.clone())
7045 _ => panic!("Unexpected event"),
7049 nodes[1].node.handle_update_fail_malformed_htlc(&nodes[2].node.get_our_node_id(), &update_msg.0);
7051 check_added_monitors!(nodes[1], 0);
7052 commitment_signed_dance!(nodes[1], nodes[2], update_msg.1, false, true);
7053 expect_pending_htlcs_forwardable!(nodes[1]);
7054 let events_4 = nodes[1].node.get_and_clear_pending_msg_events();
7055 assert_eq!(events_4.len(), 1);
7057 //Confirm that handlinge the update_malformed_htlc message produces an update_fail_htlc message to be forwarded back along the route
7059 MessageSendEvent::UpdateHTLCs { node_id: _ , updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, .. } } => {
7060 assert!(update_add_htlcs.is_empty());
7061 assert!(update_fulfill_htlcs.is_empty());
7062 assert_eq!(update_fail_htlcs.len(), 1);
7063 assert!(update_fail_malformed_htlcs.is_empty());
7064 assert!(update_fee.is_none());
7066 _ => panic!("Unexpected event"),
7069 check_added_monitors!(nodes[1], 1);
7072 fn do_test_failure_delay_dust_htlc_local_commitment(announce_latest: bool) {
7073 // Dust-HTLC failure updates must be delayed until failure-trigger tx (in this case local commitment) reach ANTI_REORG_DELAY
7074 // We can have at most two valid local commitment tx, so both cases must be covered, and both txs must be checked to get them all as
7075 // HTLC could have been removed from lastest local commitment tx but still valid until we get remote RAA
7077 let chanmon_cfgs = create_chanmon_cfgs(2);
7078 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7079 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7080 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7081 let chan =create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
7083 let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
7085 // We route 2 dust-HTLCs between A and B
7086 let (_, payment_hash_1) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
7087 let (_, payment_hash_2) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
7088 route_payment(&nodes[0], &[&nodes[1]], 1000000);
7090 // Cache one local commitment tx as previous
7091 let as_prev_commitment_tx = get_local_commitment_txn!(nodes[0], chan.2);
7093 // Fail one HTLC to prune it in the will-be-latest-local commitment tx
7094 assert!(nodes[1].node.fail_htlc_backwards(&payment_hash_2, &None));
7095 check_added_monitors!(nodes[1], 0);
7096 expect_pending_htlcs_forwardable!(nodes[1]);
7097 check_added_monitors!(nodes[1], 1);
7099 let remove = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
7100 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &remove.update_fail_htlcs[0]);
7101 nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &remove.commitment_signed);
7102 check_added_monitors!(nodes[0], 1);
7104 // Cache one local commitment tx as lastest
7105 let as_last_commitment_tx = get_local_commitment_txn!(nodes[0], chan.2);
7107 let events = nodes[0].node.get_and_clear_pending_msg_events();
7109 MessageSendEvent::SendRevokeAndACK { node_id, .. } => {
7110 assert_eq!(node_id, nodes[1].node.get_our_node_id());
7112 _ => panic!("Unexpected event"),
7115 MessageSendEvent::UpdateHTLCs { node_id, .. } => {
7116 assert_eq!(node_id, nodes[1].node.get_our_node_id());
7118 _ => panic!("Unexpected event"),
7121 assert_ne!(as_prev_commitment_tx, as_last_commitment_tx);
7122 // Fail the 2 dust-HTLCs, move their failure in maturation buffer (htlc_updated_waiting_threshold_conf)
7123 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7125 if announce_latest {
7126 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![as_last_commitment_tx[0].clone()]}, 1);
7128 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![as_prev_commitment_tx[0].clone()]}, 1);
7131 check_closed_broadcast!(nodes[0], false);
7132 check_added_monitors!(nodes[0], 1);
7134 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7135 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
7136 let events = nodes[0].node.get_and_clear_pending_events();
7137 // Only 2 PaymentFailed events should show up, over-dust HTLC has to be failed by timeout tx
7138 assert_eq!(events.len(), 2);
7139 let mut first_failed = false;
7140 for event in events {
7142 Event::PaymentFailed { payment_hash, .. } => {
7143 if payment_hash == payment_hash_1 {
7144 assert!(!first_failed);
7145 first_failed = true;
7147 assert_eq!(payment_hash, payment_hash_2);
7150 _ => panic!("Unexpected event"),
7156 fn test_failure_delay_dust_htlc_local_commitment() {
7157 do_test_failure_delay_dust_htlc_local_commitment(true);
7158 do_test_failure_delay_dust_htlc_local_commitment(false);
7162 fn test_no_failure_dust_htlc_local_commitment() {
7163 // Transaction filters for failing back dust htlc based on local commitment txn infos has been
7164 // prone to error, we test here that a dummy transaction don't fail them.
7166 let chanmon_cfgs = create_chanmon_cfgs(2);
7167 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7168 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7169 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7170 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
7173 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
7175 let as_dust_limit = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
7176 let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
7178 // We route 2 dust-HTLCs between A and B
7179 let (preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
7180 let (preimage_2, _) = route_payment(&nodes[1], &[&nodes[0]], as_dust_limit*1000);
7182 // Build a dummy invalid transaction trying to spend a commitment tx
7184 previous_output: BitcoinOutPoint { txid: chan.3.txid(), vout: 0 },
7185 script_sig: Script::new(),
7187 witness: Vec::new(),
7191 script_pubkey: Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(),
7195 let dummy_tx = Transaction {
7202 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7203 nodes[0].chan_monitor.simple_monitor.block_connected(&header, 1, &[&dummy_tx], &[1;1]);
7204 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7205 assert_eq!(nodes[0].node.get_and_clear_pending_msg_events().len(), 0);
7206 // We broadcast a few more block to check everything is all right
7207 connect_blocks(&nodes[0].block_notifier, 20, 1, true, header.bitcoin_hash());
7208 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7209 assert_eq!(nodes[0].node.get_and_clear_pending_msg_events().len(), 0);
7211 claim_payment(&nodes[0], &vec!(&nodes[1])[..], preimage_1, bs_dust_limit*1000);
7212 claim_payment(&nodes[1], &vec!(&nodes[0])[..], preimage_2, as_dust_limit*1000);
7215 fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) {
7216 // Outbound HTLC-failure updates must be cancelled if we get a reorg before we reach ANTI_REORG_DELAY.
7217 // Broadcast of revoked remote commitment tx, trigger failure-update of dust/non-dust HTLCs
7218 // Broadcast of remote commitment tx, trigger failure-update of dust-HTLCs
7219 // Broadcast of timeout tx on remote commitment tx, trigger failure-udate of non-dust HTLCs
7220 // Broadcast of local commitment tx, trigger failure-update of dust-HTLCs
7221 // Broadcast of HTLC-timeout tx on local commitment tx, trigger failure-update of non-dust HTLCs
7223 let chanmon_cfgs = create_chanmon_cfgs(3);
7224 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
7225 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
7226 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
7227 let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
7229 let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
7231 let (_payment_preimage_1, dust_hash) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
7232 let (_payment_preimage_2, non_dust_hash) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
7234 let as_commitment_tx = get_local_commitment_txn!(nodes[0], chan.2);
7235 let bs_commitment_tx = get_local_commitment_txn!(nodes[1], chan.2);
7237 // We revoked bs_commitment_tx
7239 let (payment_preimage_3, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
7240 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3, 1_000_000);
7243 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7244 let mut timeout_tx = Vec::new();
7246 // We fail dust-HTLC 1 by broadcast of local commitment tx
7247 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![as_commitment_tx[0].clone()]}, 1);
7248 check_closed_broadcast!(nodes[0], false);
7249 check_added_monitors!(nodes[0], 1);
7250 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7251 timeout_tx.push(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap()[0].clone());
7252 let parent_hash = connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 2, true, header.bitcoin_hash());
7253 expect_payment_failed!(nodes[0], dust_hash, true);
7254 assert_eq!(timeout_tx[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
7255 // We fail non-dust-HTLC 2 by broadcast of local HTLC-timeout tx on local commitment tx
7256 let header_2 = BlockHeader { version: 0x20000000, prev_blockhash: parent_hash, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7257 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7258 nodes[0].block_notifier.block_connected(&Block { header: header_2, txdata: vec![timeout_tx[0].clone()]}, 7);
7259 let header_3 = BlockHeader { version: 0x20000000, prev_blockhash: header_2.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7260 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 8, true, header_3.bitcoin_hash());
7261 expect_payment_failed!(nodes[0], non_dust_hash, true);
7263 // We fail dust-HTLC 1 by broadcast of remote commitment tx. If revoked, fail also non-dust HTLC
7264 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![bs_commitment_tx[0].clone()]}, 1);
7265 check_closed_broadcast!(nodes[0], false);
7266 check_added_monitors!(nodes[0], 1);
7267 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7268 timeout_tx.push(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap()[0].clone());
7269 let parent_hash = connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 2, true, header.bitcoin_hash());
7270 let header_2 = BlockHeader { version: 0x20000000, prev_blockhash: parent_hash, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7272 expect_payment_failed!(nodes[0], dust_hash, true);
7273 assert_eq!(timeout_tx[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
7274 // We fail non-dust-HTLC 2 by broadcast of local timeout tx on remote commitment tx
7275 nodes[0].block_notifier.block_connected(&Block { header: header_2, txdata: vec![timeout_tx[0].clone()]}, 7);
7276 assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
7277 let header_3 = BlockHeader { version: 0x20000000, prev_blockhash: header_2.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7278 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 8, true, header_3.bitcoin_hash());
7279 expect_payment_failed!(nodes[0], non_dust_hash, true);
7281 // If revoked, both dust & non-dust HTLCs should have been failed after ANTI_REORG_DELAY confs of revoked
7283 let events = nodes[0].node.get_and_clear_pending_events();
7284 assert_eq!(events.len(), 2);
7287 Event::PaymentFailed { payment_hash, .. } => {
7288 if payment_hash == dust_hash { first = true; }
7289 else { first = false; }
7291 _ => panic!("Unexpected event"),
7294 Event::PaymentFailed { payment_hash, .. } => {
7295 if first { assert_eq!(payment_hash, non_dust_hash); }
7296 else { assert_eq!(payment_hash, dust_hash); }
7298 _ => panic!("Unexpected event"),
7305 fn test_sweep_outbound_htlc_failure_update() {
7306 do_test_sweep_outbound_htlc_failure_update(false, true);
7307 do_test_sweep_outbound_htlc_failure_update(false, false);
7308 do_test_sweep_outbound_htlc_failure_update(true, false);
7312 fn test_upfront_shutdown_script() {
7313 // BOLT 2 : Option upfront shutdown script, if peer commit its closing_script at channel opening
7314 // enforce it at shutdown message
7316 let mut config = UserConfig::default();
7317 config.channel_options.announced_channel = true;
7318 config.peer_channel_config_limits.force_announced_channel_preference = false;
7319 config.channel_options.commit_upfront_shutdown_pubkey = false;
7320 let user_cfgs = [None, Some(config), None];
7321 let chanmon_cfgs = create_chanmon_cfgs(3);
7322 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
7323 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &user_cfgs);
7324 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
7326 // We test that in case of peer committing upfront to a script, if it changes at closing, we refuse to sign
7327 let flags = InitFeatures::known();
7328 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 1000000, 1000000, flags.clone(), flags.clone());
7329 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id()).unwrap();
7330 let mut node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[2].node.get_our_node_id());
7331 node_0_shutdown.scriptpubkey = Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script().to_p2sh();
7332 // Test we enforce upfront_scriptpbukey if by providing a diffrent one at closing that we disconnect peer
7333 nodes[2].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
7334 assert!(regex::Regex::new(r"Got shutdown request with a scriptpubkey \([A-Fa-f0-9]+\) which did not match their previous scriptpubkey.").unwrap().is_match(check_closed_broadcast!(nodes[2], true).unwrap().data.as_str()));
7335 check_added_monitors!(nodes[2], 1);
7337 // We test that in case of peer committing upfront to a script, if it doesn't change at closing, we sign
7338 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 1000000, 1000000, flags.clone(), flags.clone());
7339 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id()).unwrap();
7340 let node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[2].node.get_our_node_id());
7341 // We test that in case of peer committing upfront to a script, if it oesn't change at closing, we sign
7342 nodes[2].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_0_shutdown);
7343 let events = nodes[2].node.get_and_clear_pending_msg_events();
7344 assert_eq!(events.len(), 1);
7346 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[0].node.get_our_node_id()) }
7347 _ => panic!("Unexpected event"),
7350 // We test that if case of peer non-signaling we don't enforce committed script at channel opening
7351 let flags_no = InitFeatures::known().clear_upfront_shutdown_script();
7352 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, flags_no, flags.clone());
7353 nodes[0].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id()).unwrap();
7354 let mut node_1_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
7355 node_1_shutdown.scriptpubkey = Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script().to_p2sh();
7356 nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &node_1_shutdown);
7357 let events = nodes[1].node.get_and_clear_pending_msg_events();
7358 assert_eq!(events.len(), 1);
7360 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[0].node.get_our_node_id()) }
7361 _ => panic!("Unexpected event"),
7364 // We test that if user opt-out, we provide a zero-length script at channel opening and we are able to close
7365 // channel smoothly, opt-out is from channel initiator here
7366 let chan = create_announced_chan_between_nodes_with_value(&nodes, 1, 0, 1000000, 1000000, flags.clone(), flags.clone());
7367 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id()).unwrap();
7368 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
7369 node_0_shutdown.scriptpubkey = Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script().to_p2sh();
7370 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
7371 let events = nodes[0].node.get_and_clear_pending_msg_events();
7372 assert_eq!(events.len(), 1);
7374 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
7375 _ => panic!("Unexpected event"),
7378 //// We test that if user opt-out, we provide a zero-length script at channel opening and we are able to close
7379 //// channel smoothly
7380 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, flags.clone(), flags.clone());
7381 nodes[1].node.close_channel(&OutPoint { txid: chan.3.txid(), index: 0 }.to_channel_id()).unwrap();
7382 let mut node_0_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
7383 node_0_shutdown.scriptpubkey = Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script().to_p2sh();
7384 nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_0_shutdown);
7385 let events = nodes[0].node.get_and_clear_pending_msg_events();
7386 assert_eq!(events.len(), 2);
7388 MessageSendEvent::SendShutdown { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
7389 _ => panic!("Unexpected event"),
7392 MessageSendEvent::SendClosingSigned { node_id, .. } => { assert_eq!(node_id, nodes[1].node.get_our_node_id()) }
7393 _ => panic!("Unexpected event"),
7398 fn test_user_configurable_csv_delay() {
7399 // We test our channel constructors yield errors when we pass them absurd csv delay
7401 let mut low_our_to_self_config = UserConfig::default();
7402 low_our_to_self_config.own_channel_config.our_to_self_delay = 6;
7403 let mut high_their_to_self_config = UserConfig::default();
7404 high_their_to_self_config.peer_channel_config_limits.their_to_self_delay = 100;
7405 let user_cfgs = [Some(high_their_to_self_config.clone()), None];
7406 let chanmon_cfgs = create_chanmon_cfgs(2);
7407 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7408 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &user_cfgs);
7409 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7411 // We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in Channel::new_outbound()
7412 let keys_manager: Arc<KeysInterface<ChanKeySigner = EnforcingChannelKeys>> = Arc::new(test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet));
7413 if let Err(error) = Channel::new_outbound(&&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), 1000000, 1000000, 0, &low_our_to_self_config) {
7415 APIError::APIMisuseError { err } => { assert!(regex::Regex::new(r"Configured with an unreasonable our_to_self_delay \(\d+\) putting user funds at risks").unwrap().is_match(err.as_str())); },
7416 _ => panic!("Unexpected event"),
7418 } else { assert!(false) }
7420 // We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in Channel::new_from_req()
7421 nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
7422 let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
7423 open_channel.to_self_delay = 200;
7424 if let Err(error) = Channel::new_from_req(&&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), InitFeatures::known(), &open_channel, 0, &low_our_to_self_config) {
7426 ChannelError::Close(err) => { assert!(regex::Regex::new(r"Configured with an unreasonable our_to_self_delay \(\d+\) putting user funds at risks").unwrap().is_match(err.as_str())); },
7427 _ => panic!("Unexpected event"),
7429 } else { assert!(false); }
7431 // We test msg.to_self_delay <= config.their_to_self_delay is enforced in Chanel::accept_channel()
7432 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
7433 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()));
7434 let mut accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
7435 accept_channel.to_self_delay = 200;
7436 nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &accept_channel);
7437 if let MessageSendEvent::HandleError { ref action, .. } = nodes[0].node.get_and_clear_pending_msg_events()[0] {
7439 &ErrorAction::SendErrorMessage { ref msg } => {
7440 assert!(regex::Regex::new(r"They wanted our payments to be delayed by a needlessly long period\. Upper limit: \d+\. Actual: \d+").unwrap().is_match(msg.data.as_str()));
7442 _ => { assert!(false); }
7444 } else { assert!(false); }
7446 // We test msg.to_self_delay <= config.their_to_self_delay is enforced in Channel::new_from_req()
7447 nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
7448 let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
7449 open_channel.to_self_delay = 200;
7450 if let Err(error) = Channel::new_from_req(&&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), InitFeatures::known(), &open_channel, 0, &high_their_to_self_config) {
7452 ChannelError::Close(err) => { assert!(regex::Regex::new(r"They wanted our payments to be delayed by a needlessly long period\. Upper limit: \d+\. Actual: \d+").unwrap().is_match(err.as_str())); },
7453 _ => panic!("Unexpected event"),
7455 } else { assert!(false); }
7459 fn test_data_loss_protect() {
7460 // We want to be sure that :
7461 // * we don't broadcast our Local Commitment Tx in case of fallen behind
7462 // * we close channel in case of detecting other being fallen behind
7463 // * we are able to claim our own outputs thanks to to_remote being static
7471 let chanmon_cfgs = create_chanmon_cfgs(2);
7472 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7473 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7474 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7476 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, InitFeatures::known(), InitFeatures::known());
7478 // Cache node A state before any channel update
7479 let previous_node_state = nodes[0].node.encode();
7480 let mut previous_chan_monitor_state = test_utils::TestVecWriter(Vec::new());
7481 nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut previous_chan_monitor_state).unwrap();
7483 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
7484 send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
7486 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
7487 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
7489 // Restore node A from previous state
7490 logger = test_utils::TestLogger::with_id(format!("node {}", 0));
7491 let mut chan_monitor = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut ::std::io::Cursor::new(previous_chan_monitor_state.0)).unwrap().1;
7492 chain_monitor = ChainWatchInterfaceUtil::new(Network::Testnet);
7493 tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
7494 fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
7495 keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet);
7496 monitor = test_utils::TestChannelMonitor::new(&chain_monitor, &tx_broadcaster, &logger, &fee_estimator);
7498 let mut channel_monitors = HashMap::new();
7499 channel_monitors.insert(OutPoint { txid: chan.3.txid(), index: 0 }, &mut chan_monitor);
7500 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(previous_node_state), ChannelManagerReadArgs {
7501 keys_manager: &keys_manager,
7502 fee_estimator: &fee_estimator,
7505 tx_broadcaster: &tx_broadcaster,
7506 default_config: UserConfig::default(),
7507 channel_monitors: &mut channel_monitors,
7510 nodes[0].node = &node_state_0;
7511 assert!(monitor.add_monitor(OutPoint { txid: chan.3.txid(), index: 0 }, chan_monitor).is_ok());
7512 nodes[0].chan_monitor = &monitor;
7513 nodes[0].chain_monitor = &chain_monitor;
7515 nodes[0].block_notifier = BlockNotifier::new(&nodes[0].chain_monitor);
7516 nodes[0].block_notifier.register_listener(&nodes[0].chan_monitor.simple_monitor);
7517 nodes[0].block_notifier.register_listener(nodes[0].node);
7519 check_added_monitors!(nodes[0], 1);
7521 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
7522 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
7524 let reestablish_0 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
7526 // Check we don't broadcast any transactions following learning of per_commitment_point from B
7527 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_0[0]);
7528 check_added_monitors!(nodes[0], 1);
7531 let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
7532 assert_eq!(node_txn.len(), 0);
7535 let mut reestablish_1 = Vec::with_capacity(1);
7536 for msg in nodes[0].node.get_and_clear_pending_msg_events() {
7537 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
7538 assert_eq!(*node_id, nodes[1].node.get_our_node_id());
7539 reestablish_1.push(msg.clone());
7540 } else if let MessageSendEvent::BroadcastChannelUpdate { .. } = msg {
7541 } else if let MessageSendEvent::HandleError { ref action, .. } = msg {
7543 &ErrorAction::SendErrorMessage { ref msg } => {
7544 assert_eq!(msg.data, "We have fallen behind - we have received proof that if we broadcast remote is going to claim our funds - we can't do any automated broadcasting");
7546 _ => panic!("Unexpected event!"),
7549 panic!("Unexpected event")
7553 // Check we close channel detecting A is fallen-behind
7554 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
7555 assert_eq!(check_closed_broadcast!(nodes[1], true).unwrap().data, "Peer attempted to reestablish channel with a very old local commitment transaction");
7556 check_added_monitors!(nodes[1], 1);
7559 // Check A is able to claim to_remote output
7560 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
7561 assert_eq!(node_txn.len(), 1);
7562 check_spends!(node_txn[0], chan.3);
7563 assert_eq!(node_txn[0].output.len(), 2);
7564 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
7565 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![node_txn[0].clone()]}, 0);
7566 connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 0, true, header.bitcoin_hash());
7567 let spend_txn = check_spendable_outputs!(nodes[0], 1, node_cfgs[0].keys_manager, 100000);
7568 assert_eq!(spend_txn.len(), 1);
7569 check_spends!(spend_txn[0], node_txn[0]);
7573 fn test_check_htlc_underpaying() {
7574 // Send payment through A -> B but A is maliciously
7575 // sending a probe payment (i.e less than expected value0
7576 // to B, B should refuse payment.
7578 let chanmon_cfgs = create_chanmon_cfgs(2);
7579 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7580 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7581 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7583 // Create some initial channels
7584 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
7586 let (payment_preimage, payment_hash) = route_payment(&nodes[0], &[&nodes[1]], 10_000);
7588 // Node 3 is expecting payment of 100_000 but receive 10_000,
7589 // fail htlc like we didn't know the preimage.
7590 nodes[1].node.claim_funds(payment_preimage, &None, 100_000);
7591 nodes[1].node.process_pending_htlc_forwards();
7593 let events = nodes[1].node.get_and_clear_pending_msg_events();
7594 assert_eq!(events.len(), 1);
7595 let (update_fail_htlc, commitment_signed) = match events[0] {
7596 MessageSendEvent::UpdateHTLCs { node_id: _ , updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
7597 assert!(update_add_htlcs.is_empty());
7598 assert!(update_fulfill_htlcs.is_empty());
7599 assert_eq!(update_fail_htlcs.len(), 1);
7600 assert!(update_fail_malformed_htlcs.is_empty());
7601 assert!(update_fee.is_none());
7602 (update_fail_htlcs[0].clone(), commitment_signed)
7604 _ => panic!("Unexpected event"),
7606 check_added_monitors!(nodes[1], 1);
7608 nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlc);
7609 commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false, true);
7611 // 10_000 msat as u64, followed by a height of 99 as u32
7612 let mut expected_failure_data = byte_utils::be64_to_array(10_000).to_vec();
7613 expected_failure_data.extend_from_slice(&byte_utils::be32_to_array(99));
7614 expect_payment_failed!(nodes[0], payment_hash, true, 0x4000|15, &expected_failure_data[..]);
7615 nodes[1].node.get_and_clear_pending_events();
7619 fn test_announce_disable_channels() {
7620 // Create 2 channels between A and B. Disconnect B. Call timer_chan_freshness_every_min and check for generated
7621 // ChannelUpdate. Reconnect B, reestablish and check there is non-generated ChannelUpdate.
7623 let chanmon_cfgs = create_chanmon_cfgs(2);
7624 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7625 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7626 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7628 let short_id_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
7629 let short_id_2 = create_announced_chan_between_nodes(&nodes, 1, 0, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
7630 let short_id_3 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
7633 nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
7634 nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
7636 nodes[0].node.timer_chan_freshness_every_min(); // dirty -> stagged
7637 nodes[0].node.timer_chan_freshness_every_min(); // staged -> fresh
7638 let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
7639 assert_eq!(msg_events.len(), 3);
7640 for e in msg_events {
7642 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
7643 let short_id = msg.contents.short_channel_id;
7644 // Check generated channel_update match list in PendingChannelUpdate
7645 if short_id != short_id_1 && short_id != short_id_2 && short_id != short_id_3 {
7646 panic!("Generated ChannelUpdate for wrong chan!");
7649 _ => panic!("Unexpected event"),
7653 nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
7654 let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
7655 assert_eq!(reestablish_1.len(), 3);
7656 nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
7657 let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
7658 assert_eq!(reestablish_2.len(), 3);
7660 // Reestablish chan_1
7661 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
7662 handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
7663 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]);
7664 handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
7665 // Reestablish chan_2
7666 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[1]);
7667 handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
7668 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[1]);
7669 handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
7670 // Reestablish chan_3
7671 nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[2]);
7672 handle_chan_reestablish_msgs!(nodes[0], nodes[1]);
7673 nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[2]);
7674 handle_chan_reestablish_msgs!(nodes[1], nodes[0]);
7676 nodes[0].node.timer_chan_freshness_every_min();
7677 assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
7681 fn test_bump_penalty_txn_on_revoked_commitment() {
7682 // In case of penalty txn with too low feerates for getting into mempools, RBF-bump them to be sure
7683 // we're able to claim outputs on revoked commitment transaction before timelocks expiration
7685 let chanmon_cfgs = create_chanmon_cfgs(2);
7686 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7687 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7688 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7690 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known());
7691 let logger = test_utils::TestLogger::new();
7694 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
7695 let net_graph_msg_handler = &nodes[1].net_graph_msg_handler;
7696 let route = get_route(&nodes[1].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[0].node.get_our_node_id(), None, &Vec::new(), 3000000, 30, &logger).unwrap();
7697 send_along_route(&nodes[1], route, &vec!(&nodes[0])[..], 3000000);
7699 let revoked_txn = get_local_commitment_txn!(nodes[0], chan.2);
7700 // Revoked commitment txn with 4 outputs : to_local, to_remote, 1 outgoing HTLC, 1 incoming HTLC
7701 assert_eq!(revoked_txn[0].output.len(), 4);
7702 assert_eq!(revoked_txn[0].input.len(), 1);
7703 assert_eq!(revoked_txn[0].input[0].previous_output.txid, chan.3.txid());
7704 let revoked_txid = revoked_txn[0].txid();
7706 let mut penalty_sum = 0;
7707 for outp in revoked_txn[0].output.iter() {
7708 if outp.script_pubkey.is_v0_p2wsh() {
7709 penalty_sum += outp.value;
7713 // Connect blocks to change height_timer range to see if we use right soonest_timelock
7714 let header_114 = connect_blocks(&nodes[1].block_notifier, 114, 0, false, Default::default());
7716 // Actually revoke tx by claiming a HTLC
7717 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000);
7718 let header = BlockHeader { version: 0x20000000, prev_blockhash: header_114, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7719 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_txn[0].clone()] }, 115);
7720 check_added_monitors!(nodes[1], 1);
7722 // One or more justice tx should have been broadcast, check it
7726 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
7727 assert_eq!(node_txn.len(), 3); // justice tx (broadcasted from ChannelMonitor) + local commitment tx + local HTLC-timeout (broadcasted from ChannelManager)
7728 assert_eq!(node_txn[0].input.len(), 3); // Penalty txn claims to_local, offered_htlc and received_htlc outputs
7729 assert_eq!(node_txn[0].output.len(), 1);
7730 check_spends!(node_txn[0], revoked_txn[0]);
7731 let fee_1 = penalty_sum - node_txn[0].output[0].value;
7732 feerate_1 = fee_1 * 1000 / node_txn[0].get_weight() as u64;
7733 penalty_1 = node_txn[0].txid();
7737 // After exhaustion of height timer, a new bumped justice tx should have been broadcast, check it
7738 let header = connect_blocks(&nodes[1].block_notifier, 3, 115, true, header.bitcoin_hash());
7739 let mut penalty_2 = penalty_1;
7740 let mut feerate_2 = 0;
7742 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
7743 assert_eq!(node_txn.len(), 1);
7744 if node_txn[0].input[0].previous_output.txid == revoked_txid {
7745 assert_eq!(node_txn[0].input.len(), 3); // Penalty txn claims to_local, offered_htlc and received_htlc outputs
7746 assert_eq!(node_txn[0].output.len(), 1);
7747 check_spends!(node_txn[0], revoked_txn[0]);
7748 penalty_2 = node_txn[0].txid();
7749 // Verify new bumped tx is different from last claiming transaction, we don't want spurrious rebroadcast
7750 assert_ne!(penalty_2, penalty_1);
7751 let fee_2 = penalty_sum - node_txn[0].output[0].value;
7752 feerate_2 = fee_2 * 1000 / node_txn[0].get_weight() as u64;
7753 // Verify 25% bump heuristic
7754 assert!(feerate_2 * 100 >= feerate_1 * 125);
7758 assert_ne!(feerate_2, 0);
7760 // After exhaustion of height timer for a 2nd time, a new bumped justice tx should have been broadcast, check it
7761 connect_blocks(&nodes[1].block_notifier, 3, 118, true, header);
7763 let mut feerate_3 = 0;
7765 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
7766 assert_eq!(node_txn.len(), 1);
7767 if node_txn[0].input[0].previous_output.txid == revoked_txid {
7768 assert_eq!(node_txn[0].input.len(), 3); // Penalty txn claims to_local, offered_htlc and received_htlc outputs
7769 assert_eq!(node_txn[0].output.len(), 1);
7770 check_spends!(node_txn[0], revoked_txn[0]);
7771 penalty_3 = node_txn[0].txid();
7772 // Verify new bumped tx is different from last claiming transaction, we don't want spurrious rebroadcast
7773 assert_ne!(penalty_3, penalty_2);
7774 let fee_3 = penalty_sum - node_txn[0].output[0].value;
7775 feerate_3 = fee_3 * 1000 / node_txn[0].get_weight() as u64;
7776 // Verify 25% bump heuristic
7777 assert!(feerate_3 * 100 >= feerate_2 * 125);
7781 assert_ne!(feerate_3, 0);
7783 nodes[1].node.get_and_clear_pending_events();
7784 nodes[1].node.get_and_clear_pending_msg_events();
7788 fn test_bump_penalty_txn_on_revoked_htlcs() {
7789 // In case of penalty txn with too low feerates for getting into mempools, RBF-bump them to sure
7790 // we're able to claim outputs on revoked HTLC transactions before timelocks expiration
7792 let chanmon_cfgs = create_chanmon_cfgs(2);
7793 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7794 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7795 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7797 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known());
7798 // Lock HTLC in both directions
7799 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3_000_000).0;
7800 route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0;
7802 let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan.2);
7803 assert_eq!(revoked_local_txn[0].input.len(), 1);
7804 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid());
7806 // Revoke local commitment tx
7807 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000);
7809 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7810 // B will generate both revoked HTLC-timeout/HTLC-preimage txn from revoked commitment tx
7811 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
7812 check_closed_broadcast!(nodes[1], false);
7813 check_added_monitors!(nodes[1], 1);
7815 let revoked_htlc_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
7816 assert_eq!(revoked_htlc_txn.len(), 4);
7817 if revoked_htlc_txn[0].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT {
7818 assert_eq!(revoked_htlc_txn[0].input.len(), 1);
7819 check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]);
7820 assert_eq!(revoked_htlc_txn[1].input.len(), 1);
7821 assert_eq!(revoked_htlc_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
7822 check_spends!(revoked_htlc_txn[1], revoked_local_txn[0]);
7823 } else if revoked_htlc_txn[1].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT {
7824 assert_eq!(revoked_htlc_txn[1].input.len(), 1);
7825 check_spends!(revoked_htlc_txn[1], revoked_local_txn[0]);
7826 assert_eq!(revoked_htlc_txn[0].input.len(), 1);
7827 assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
7828 check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]);
7831 // Broadcast set of revoked txn on A
7832 let header_128 = connect_blocks(&nodes[0].block_notifier, 128, 0, true, header.bitcoin_hash());
7833 expect_pending_htlcs_forwardable_ignore!(nodes[0]);
7835 let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_128, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7836 nodes[0].block_notifier.block_connected(&Block { header: header_129, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()] }, 129);
7841 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
7842 assert_eq!(node_txn.len(), 5); // 3 penalty txn on revoked commitment tx + A commitment tx + 1 penalty tnx on revoked HTLC txn
7843 // Verify claim tx are spending revoked HTLC txn
7844 assert_eq!(node_txn[4].input.len(), 2);
7845 assert_eq!(node_txn[4].output.len(), 1);
7846 check_spends!(node_txn[4], revoked_htlc_txn[0], revoked_htlc_txn[1]);
7847 first = node_txn[4].txid();
7848 // Store both feerates for later comparison
7849 let fee_1 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[1].output[0].value - node_txn[4].output[0].value;
7850 feerate_1 = fee_1 * 1000 / node_txn[4].get_weight() as u64;
7851 penalty_txn = vec![node_txn[0].clone(), node_txn[1].clone(), node_txn[2].clone()];
7855 // Connect three more block to see if bumped penalty are issued for HTLC txn
7856 let header_130 = BlockHeader { version: 0x20000000, prev_blockhash: header_129.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7857 nodes[0].block_notifier.block_connected(&Block { header: header_130, txdata: penalty_txn }, 130);
7859 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
7860 assert_eq!(node_txn.len(), 2); // 2 bumped penalty txn on revoked commitment tx
7862 check_spends!(node_txn[0], revoked_local_txn[0]);
7863 check_spends!(node_txn[1], revoked_local_txn[0]);
7868 // Few more blocks to confirm penalty txn
7869 let header_135 = connect_blocks(&nodes[0].block_notifier, 5, 130, true, header_130.bitcoin_hash());
7870 assert!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
7871 let header_144 = connect_blocks(&nodes[0].block_notifier, 9, 135, true, header_135);
7873 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
7874 assert_eq!(node_txn.len(), 1);
7876 assert_eq!(node_txn[0].input.len(), 2);
7877 check_spends!(node_txn[0], revoked_htlc_txn[0], revoked_htlc_txn[1]);
7878 // Verify bumped tx is different and 25% bump heuristic
7879 assert_ne!(first, node_txn[0].txid());
7880 let fee_2 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[1].output[0].value - node_txn[0].output[0].value;
7881 let feerate_2 = fee_2 * 1000 / node_txn[0].get_weight() as u64;
7882 assert!(feerate_2 * 100 > feerate_1 * 125);
7883 let txn = vec![node_txn[0].clone()];
7887 // Broadcast claim txn and confirm blocks to avoid further bumps on this outputs
7888 let header_145 = BlockHeader { version: 0x20000000, prev_blockhash: header_144, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7889 nodes[0].block_notifier.block_connected(&Block { header: header_145, txdata: node_txn }, 145);
7890 connect_blocks(&nodes[0].block_notifier, 20, 145, true, header_145.bitcoin_hash());
7892 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
7893 // We verify than no new transaction has been broadcast because previously
7894 // we were buggy on this exact behavior by not tracking for monitoring remote HTLC outputs (see #411)
7895 // which means we wouldn't see a spend of them by a justice tx and bumped justice tx
7896 // were generated forever instead of safe cleaning after confirmation and ANTI_REORG_SAFE_DELAY blocks.
7897 // Enforce spending of revoked htlc output by claiming transaction remove request as expected and dry
7898 // up bumped justice generation.
7899 assert_eq!(node_txn.len(), 0);
7902 check_closed_broadcast!(nodes[0], false);
7903 check_added_monitors!(nodes[0], 1);
7907 fn test_bump_penalty_txn_on_remote_commitment() {
7908 // In case of claim txn with too low feerates for getting into mempools, RBF-bump them to be sure
7909 // we're able to claim outputs on remote commitment transaction before timelocks expiration
7912 // Provide preimage for one
7913 // Check aggregation
7915 let chanmon_cfgs = create_chanmon_cfgs(2);
7916 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
7917 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
7918 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
7920 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known());
7921 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
7922 route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000).0;
7924 // Remote commitment txn with 4 outputs : to_local, to_remote, 1 outgoing HTLC, 1 incoming HTLC
7925 let remote_txn = get_local_commitment_txn!(nodes[0], chan.2);
7926 assert_eq!(remote_txn[0].output.len(), 4);
7927 assert_eq!(remote_txn[0].input.len(), 1);
7928 assert_eq!(remote_txn[0].input[0].previous_output.txid, chan.3.txid());
7930 // Claim a HTLC without revocation (provide B monitor with preimage)
7931 nodes[1].node.claim_funds(payment_preimage, &None, 3_000_000);
7932 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
7933 nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![remote_txn[0].clone()] }, 1);
7934 check_added_monitors!(nodes[1], 2);
7936 // One or more claim tx should have been broadcast, check it
7939 let feerate_timeout;
7940 let feerate_preimage;
7942 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
7943 assert_eq!(node_txn.len(), 5); // 2 * claim tx (broadcasted from ChannelMonitor) + local commitment tx + local HTLC-timeout + local HTLC-success (broadcasted from ChannelManager)
7944 assert_eq!(node_txn[0].input.len(), 1);
7945 assert_eq!(node_txn[1].input.len(), 1);
7946 check_spends!(node_txn[0], remote_txn[0]);
7947 check_spends!(node_txn[1], remote_txn[0]);
7948 check_spends!(node_txn[2], chan.3);
7949 check_spends!(node_txn[3], node_txn[2]);
7950 check_spends!(node_txn[4], node_txn[2]);
7951 if node_txn[0].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT {
7952 timeout = node_txn[0].txid();
7953 let index = node_txn[0].input[0].previous_output.vout;
7954 let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value;
7955 feerate_timeout = fee * 1000 / node_txn[0].get_weight() as u64;
7957 preimage = node_txn[1].txid();
7958 let index = node_txn[1].input[0].previous_output.vout;
7959 let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value;
7960 feerate_preimage = fee * 1000 / node_txn[1].get_weight() as u64;
7962 timeout = node_txn[1].txid();
7963 let index = node_txn[1].input[0].previous_output.vout;
7964 let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value;
7965 feerate_timeout = fee * 1000 / node_txn[1].get_weight() as u64;
7967 preimage = node_txn[0].txid();
7968 let index = node_txn[0].input[0].previous_output.vout;
7969 let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value;
7970 feerate_preimage = fee * 1000 / node_txn[0].get_weight() as u64;
7974 assert_ne!(feerate_timeout, 0);
7975 assert_ne!(feerate_preimage, 0);
7977 // After exhaustion of height timer, new bumped claim txn should have been broadcast, check it
7978 connect_blocks(&nodes[1].block_notifier, 15, 1, true, header.bitcoin_hash());
7980 let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
7981 assert_eq!(node_txn.len(), 2);
7982 assert_eq!(node_txn[0].input.len(), 1);
7983 assert_eq!(node_txn[1].input.len(), 1);
7984 check_spends!(node_txn[0], remote_txn[0]);
7985 check_spends!(node_txn[1], remote_txn[0]);
7986 if node_txn[0].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT {
7987 let index = node_txn[0].input[0].previous_output.vout;
7988 let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value;
7989 let new_feerate = fee * 1000 / node_txn[0].get_weight() as u64;
7990 assert!(new_feerate * 100 > feerate_timeout * 125);
7991 assert_ne!(timeout, node_txn[0].txid());
7993 let index = node_txn[1].input[0].previous_output.vout;
7994 let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value;
7995 let new_feerate = fee * 1000 / node_txn[1].get_weight() as u64;
7996 assert!(new_feerate * 100 > feerate_preimage * 125);
7997 assert_ne!(preimage, node_txn[1].txid());
7999 let index = node_txn[1].input[0].previous_output.vout;
8000 let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value;
8001 let new_feerate = fee * 1000 / node_txn[1].get_weight() as u64;
8002 assert!(new_feerate * 100 > feerate_timeout * 125);
8003 assert_ne!(timeout, node_txn[1].txid());
8005 let index = node_txn[0].input[0].previous_output.vout;
8006 let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value;
8007 let new_feerate = fee * 1000 / node_txn[0].get_weight() as u64;
8008 assert!(new_feerate * 100 > feerate_preimage * 125);
8009 assert_ne!(preimage, node_txn[0].txid());
8014 nodes[1].node.get_and_clear_pending_events();
8015 nodes[1].node.get_and_clear_pending_msg_events();
8019 fn test_set_outpoints_partial_claiming() {
8020 // - remote party claim tx, new bump tx
8021 // - disconnect remote claiming tx, new bump
8022 // - disconnect tx, see no tx anymore
8023 let chanmon_cfgs = create_chanmon_cfgs(2);
8024 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
8025 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
8026 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
8028 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known());
8029 let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0;
8030 let payment_preimage_2 = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0;
8032 // Remote commitment txn with 4 outputs: to_local, to_remote, 2 outgoing HTLC
8033 let remote_txn = get_local_commitment_txn!(nodes[1], chan.2);
8034 assert_eq!(remote_txn.len(), 3);
8035 assert_eq!(remote_txn[0].output.len(), 4);
8036 assert_eq!(remote_txn[0].input.len(), 1);
8037 assert_eq!(remote_txn[0].input[0].previous_output.txid, chan.3.txid());
8038 check_spends!(remote_txn[1], remote_txn[0]);
8039 check_spends!(remote_txn[2], remote_txn[0]);
8041 // Connect blocks on node A to advance height towards TEST_FINAL_CLTV
8042 let prev_header_100 = connect_blocks(&nodes[1].block_notifier, 100, 0, false, Default::default());
8043 // Provide node A with both preimage
8044 nodes[0].node.claim_funds(payment_preimage_1, &None, 3_000_000);
8045 nodes[0].node.claim_funds(payment_preimage_2, &None, 3_000_000);
8046 check_added_monitors!(nodes[0], 2);
8047 nodes[0].node.get_and_clear_pending_events();
8048 nodes[0].node.get_and_clear_pending_msg_events();
8050 // Connect blocks on node A commitment transaction
8051 let header = BlockHeader { version: 0x20000000, prev_blockhash: prev_header_100, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
8052 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![remote_txn[0].clone()] }, 101);
8053 check_closed_broadcast!(nodes[0], false);
8054 check_added_monitors!(nodes[0], 1);
8055 // Verify node A broadcast tx claiming both HTLCs
8057 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
8058 // ChannelMonitor: claim tx, ChannelManager: local commitment tx + HTLC-Success*2
8059 assert_eq!(node_txn.len(), 4);
8060 check_spends!(node_txn[0], remote_txn[0]);
8061 check_spends!(node_txn[1], chan.3);
8062 check_spends!(node_txn[2], node_txn[1]);
8063 check_spends!(node_txn[3], node_txn[1]);
8064 assert_eq!(node_txn[0].input.len(), 2);
8068 // Connect blocks on node B
8069 connect_blocks(&nodes[1].block_notifier, 135, 0, false, Default::default());
8070 check_closed_broadcast!(nodes[1], false);
8071 check_added_monitors!(nodes[1], 1);
8072 // Verify node B broadcast 2 HTLC-timeout txn
8073 let partial_claim_tx = {
8074 let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
8075 assert_eq!(node_txn.len(), 3);
8076 check_spends!(node_txn[1], node_txn[0]);
8077 check_spends!(node_txn[2], node_txn[0]);
8078 assert_eq!(node_txn[1].input.len(), 1);
8079 assert_eq!(node_txn[2].input.len(), 1);
8083 // Broadcast partial claim on node A, should regenerate a claiming tx with HTLC dropped
8084 let header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
8085 nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![partial_claim_tx.clone()] }, 102);
8087 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
8088 assert_eq!(node_txn.len(), 1);
8089 check_spends!(node_txn[0], remote_txn[0]);
8090 assert_eq!(node_txn[0].input.len(), 1); //dropped HTLC
8093 nodes[0].node.get_and_clear_pending_msg_events();
8095 // Disconnect last block on node A, should regenerate a claiming tx with HTLC dropped
8096 nodes[0].block_notifier.block_disconnected(&header, 102);
8098 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
8099 assert_eq!(node_txn.len(), 1);
8100 check_spends!(node_txn[0], remote_txn[0]);
8101 assert_eq!(node_txn[0].input.len(), 2); //resurrected HTLC
8105 //// Disconnect one more block and then reconnect multiple no transaction should be generated
8106 nodes[0].block_notifier.block_disconnected(&header, 101);
8107 connect_blocks(&nodes[1].block_notifier, 15, 101, false, prev_header_100);
8109 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
8110 assert_eq!(node_txn.len(), 0);
8116 fn test_counterparty_raa_skip_no_crash() {
8117 // Previously, if our counterparty sent two RAAs in a row without us having provided a
8118 // commitment transaction, we would have happily carried on and provided them the next
8119 // commitment transaction based on one RAA forward. This would probably eventually have led to
8120 // channel closure, but it would not have resulted in funds loss. Still, our
8121 // EnforcingChannelKeys would have paniced as it doesn't like jumps into the future. Here, we
8122 // check simply that the channel is closed in response to such an RAA, but don't check whether
8123 // we decide to punish our counterparty for revoking their funds (as we don't currently
8125 let chanmon_cfgs = create_chanmon_cfgs(2);
8126 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
8127 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
8128 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
8129 let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).2;
8131 let mut guard = nodes[0].node.channel_state.lock().unwrap();
8132 let local_keys = &guard.by_id.get_mut(&channel_id).unwrap().local_keys;
8133 const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1;
8134 let next_per_commitment_point = PublicKey::from_secret_key(&Secp256k1::new(),
8135 &SecretKey::from_slice(&local_keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 2)).unwrap());
8136 let per_commitment_secret = local_keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER);
8138 nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(),
8139 &msgs::RevokeAndACK { channel_id, per_commitment_secret, next_per_commitment_point });
8140 assert_eq!(check_closed_broadcast!(nodes[1], true).unwrap().data, "Received an unexpected revoke_and_ack");
8141 check_added_monitors!(nodes[1], 1);
8145 fn test_bump_txn_sanitize_tracking_maps() {
8146 // Sanitizing pendning_claim_request and claimable_outpoints used to be buggy,
8147 // verify we clean then right after expiration of ANTI_REORG_DELAY.
8149 let chanmon_cfgs = create_chanmon_cfgs(2);
8150 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
8151 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
8152 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
8154 let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known());
8155 // Lock HTLC in both directions
8156 let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000).0;
8157 route_payment(&nodes[1], &vec!(&nodes[0])[..], 9_000_000).0;
8159 let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan.2);
8160 assert_eq!(revoked_local_txn[0].input.len(), 1);
8161 assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid());
8163 // Revoke local commitment tx
8164 claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 9_000_000);
8166 // Broadcast set of revoked txn on A
8167 let header_128 = connect_blocks(&nodes[0].block_notifier, 128, 0, false, Default::default());
8168 expect_pending_htlcs_forwardable_ignore!(nodes[0]);
8170 let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_128, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
8171 nodes[0].block_notifier.block_connected(&Block { header: header_129, txdata: vec![revoked_local_txn[0].clone()] }, 129);
8172 check_closed_broadcast!(nodes[0], false);
8173 check_added_monitors!(nodes[0], 1);
8175 let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
8176 assert_eq!(node_txn.len(), 4); //ChannelMonitor: justice txn * 3, ChannelManager: local commitment tx
8177 check_spends!(node_txn[0], revoked_local_txn[0]);
8178 check_spends!(node_txn[1], revoked_local_txn[0]);
8179 check_spends!(node_txn[2], revoked_local_txn[0]);
8180 let penalty_txn = vec![node_txn[0].clone(), node_txn[1].clone(), node_txn[2].clone()];
8184 let header_130 = BlockHeader { version: 0x20000000, prev_blockhash: header_129.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
8185 nodes[0].block_notifier.block_connected(&Block { header: header_130, txdata: penalty_txn }, 130);
8186 connect_blocks(&nodes[0].block_notifier, 5, 130, false, header_130.bitcoin_hash());
8188 let monitors = nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap();
8189 if let Some(monitor) = monitors.get(&OutPoint { txid: chan.3.txid(), index: 0 }) {
8190 assert!(monitor.onchain_tx_handler.pending_claim_requests.is_empty());
8191 assert!(monitor.onchain_tx_handler.claimable_outpoints.is_empty());
8197 fn test_override_channel_config() {
8198 let chanmon_cfgs = create_chanmon_cfgs(2);
8199 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
8200 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
8201 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
8203 // Node0 initiates a channel to node1 using the override config.
8204 let mut override_config = UserConfig::default();
8205 override_config.own_channel_config.our_to_self_delay = 200;
8207 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, Some(override_config)).unwrap();
8209 // Assert the channel created by node0 is using the override config.
8210 let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
8211 assert_eq!(res.channel_flags, 0);
8212 assert_eq!(res.to_self_delay, 200);
8216 fn test_override_0msat_htlc_minimum() {
8217 let mut zero_config = UserConfig::default();
8218 zero_config.own_channel_config.our_htlc_minimum_msat = 0;
8219 let chanmon_cfgs = create_chanmon_cfgs(2);
8220 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
8221 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(zero_config.clone())]);
8222 let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
8224 nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, Some(zero_config)).unwrap();
8225 let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
8226 assert_eq!(res.htlc_minimum_msat, 1);
8228 nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &res);
8229 let res = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
8230 assert_eq!(res.htlc_minimum_msat, 1);
8234 fn test_simple_payment_secret() {
8235 // Simple test of sending a payment with a payment_secret present. This does not use any AMP
8236 // features, however.
8237 let chanmon_cfgs = create_chanmon_cfgs(3);
8238 let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
8239 let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
8240 let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
8242 create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
8243 create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
8244 let logger = test_utils::TestLogger::new();
8246 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(&nodes[0]);
8247 let payment_secret = PaymentSecret([0xdb; 32]);
8248 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
8249 let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[2].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
8250 send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[2]]], 100000, payment_hash, Some(payment_secret.clone()));
8251 // Claiming with all the correct values but the wrong secret should result in nothing...
8252 assert_eq!(nodes[2].node.claim_funds(payment_preimage, &None, 100_000), false);
8253 assert_eq!(nodes[2].node.claim_funds(payment_preimage, &Some(PaymentSecret([42; 32])), 100_000), false);
8254 // ...but with the right secret we should be able to claim all the way back
8255 claim_payment_along_route_with_secret(&nodes[0], &[&[&nodes[1], &nodes[2]]], false, payment_preimage, Some(payment_secret.clone()), 100_000);
8259 fn test_simple_mpp() {
8260 // Simple test of sending a multi-path payment.
8261 let chanmon_cfgs = create_chanmon_cfgs(4);
8262 let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
8263 let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
8264 let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
8266 let chan_1_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
8267 let chan_2_id = create_announced_chan_between_nodes(&nodes, 0, 2, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
8268 let chan_3_id = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
8269 let chan_4_id = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
8270 let logger = test_utils::TestLogger::new();
8272 let (payment_preimage, payment_hash) = get_payment_preimage_hash!(&nodes[0]);
8273 let payment_secret = PaymentSecret([0xdb; 32]);
8274 let net_graph_msg_handler = &nodes[0].net_graph_msg_handler;
8275 let mut route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[3].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV, &logger).unwrap();
8276 let path = route.paths[0].clone();
8277 route.paths.push(path);
8278 route.paths[0][0].pubkey = nodes[1].node.get_our_node_id();
8279 route.paths[0][0].short_channel_id = chan_1_id;
8280 route.paths[0][1].short_channel_id = chan_3_id;
8281 route.paths[1][0].pubkey = nodes[2].node.get_our_node_id();
8282 route.paths[1][0].short_channel_id = chan_2_id;
8283 route.paths[1][1].short_channel_id = chan_4_id;
8284 send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], 200_000, payment_hash, Some(payment_secret.clone()));
8285 // Claiming with all the correct values but the wrong secret should result in nothing...
8286 assert_eq!(nodes[3].node.claim_funds(payment_preimage, &None, 200_000), false);
8287 assert_eq!(nodes[3].node.claim_funds(payment_preimage, &Some(PaymentSecret([42; 32])), 200_000), false);
8288 // ...but with the right secret we should be able to claim all the way back
8289 claim_payment_along_route_with_secret(&nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], false, payment_preimage, Some(payment_secret), 200_000);
8293 fn test_update_err_monitor_lockdown() {
8294 // Our monitor will lock update of local commitment transaction if a broadcastion condition
8295 // has been fulfilled (either force-close from Channel or block height requiring a HTLC-
8296 // timeout). Trying to update monitor after lockdown should return a ChannelMonitorUpdateErr.
8298 // This scenario may happen in a watchtower setup, where watchtower process a block height
8299 // triggering a timeout while a slow-block-processing ChannelManager receives a local signed
8300 // commitment at same time.
8302 let chanmon_cfgs = create_chanmon_cfgs(2);
8303 let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
8304 let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
8305 let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
8307 // Create some initial channel
8308 let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
8309 let outpoint = OutPoint { txid: chan_1.3.txid(), index: 0 };
8311 // Rebalance the network to generate htlc in the two directions
8312 send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000, 10_000_000);
8314 // Route a HTLC from node 0 to node 1 (but don't settle)
8315 let preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000).0;
8317 // Copy SimpleManyChannelMonitor to simulate a watchtower and update block height of node 0 until its ChannelMonitor timeout HTLC onchain
8318 let logger = test_utils::TestLogger::with_id(format!("node {}", 0));
8319 let chain_monitor = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
8321 let monitors = nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap();
8322 let monitor = monitors.get(&outpoint).unwrap();
8323 let mut w = test_utils::TestVecWriter(Vec::new());
8324 monitor.write_for_disk(&mut w).unwrap();
8325 let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<EnforcingChannelKeys>)>::read(
8326 &mut ::std::io::Cursor::new(&w.0)).unwrap().1;
8327 assert!(new_monitor == *monitor);
8328 let watchtower = test_utils::TestChannelMonitor::new(&chain_monitor, &chanmon_cfgs[0].tx_broadcaster, &logger, &chanmon_cfgs[0].fee_estimator);
8329 assert!(watchtower.add_monitor(outpoint, new_monitor).is_ok());
8332 let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
8333 watchtower.simple_monitor.block_connected(&header, 200, &vec![], &vec![]);
8335 // Try to update ChannelMonitor
8336 assert!(nodes[1].node.claim_funds(preimage, &None, 9_000_000));
8337 check_added_monitors!(nodes[1], 1);
8338 let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
8339 assert_eq!(updates.update_fulfill_htlcs.len(), 1);
8340 nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
8341 if let Some(ref mut channel) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2) {
8342 if let Ok((_, _, _, update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].fee_estimator, &node_cfgs[0].logger) {
8343 if let Err(_) = watchtower.simple_monitor.update_monitor(outpoint, update.clone()) {} else { assert!(false); }
8344 if let Ok(_) = nodes[0].chan_monitor.update_monitor(outpoint, update) {} else { assert!(false); }
8345 } else { assert!(false); }
8346 } else { assert!(false); };
8347 // Our local monitor is in-sync and hasn't processed yet timeout
8348 check_added_monitors!(nodes[0], 1);
8349 let events = nodes[0].node.get_and_clear_pending_events();
8350 assert_eq!(events.len(), 1);