1 //! Test that monitor update failures don't get our channel state out of sync.
2 //! One of the biggest concern with the monitor update failure handling code is that messages
3 //! resent after monitor updating is restored are delivered out-of-order, resulting in
4 //! commitment_signed messages having "invalid signatures".
5 //! To test this we stand up a network of three nodes and read bytes from the fuzz input to denote
6 //! actions such as sending payments, handling events, or changing monitor update return values on
7 //! a per-node basis. This should allow it to find any cases where the ordering of actions results
8 //! in us getting out of sync with ourselves, and, assuming at least one of our recieve- or
9 //! send-side handling is correct, other peers. We consider it a failure if any action results in a
10 //! channel being force-closed.
12 //Uncomment this for libfuzzer builds:
16 extern crate bitcoin_hashes;
17 extern crate lightning;
18 extern crate secp256k1;
20 use bitcoin::BitcoinHash;
21 use bitcoin::blockdata::block::BlockHeader;
22 use bitcoin::blockdata::transaction::{Transaction, TxOut};
23 use bitcoin::blockdata::script::{Builder, Script};
24 use bitcoin::blockdata::opcodes;
25 use bitcoin::network::constants::Network;
27 use bitcoin_hashes::Hash as TraitImport;
28 use bitcoin_hashes::hash160::Hash as Hash160;
29 use bitcoin_hashes::sha256::Hash as Sha256;
30 use bitcoin_hashes::sha256d::Hash as Sha256d;
32 use lightning::chain::chaininterface;
33 use lightning::chain::transaction::OutPoint;
34 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
35 use lightning::chain::keysinterface::{ChannelKeys, KeysInterface};
36 use lightning::ln::channelmonitor;
37 use lightning::ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, HTLCUpdate};
38 use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage, ChannelManagerReadArgs};
39 use lightning::ln::router::{Route, RouteHop};
40 use lightning::ln::msgs::{CommitmentUpdate, ChannelMessageHandler, ErrorAction, LightningError, UpdateAddHTLC, LocalFeatures};
41 use lightning::util::events;
42 use lightning::util::logger::Logger;
43 use lightning::util::config::UserConfig;
44 use lightning::util::events::{EventsProvider, MessageSendEventsProvider};
45 use lightning::util::ser::{Readable, ReadableArgs, Writeable, Writer};
48 use utils::test_logger;
50 use secp256k1::key::{PublicKey,SecretKey};
51 use secp256k1::Secp256k1;
54 use std::cmp::Ordering;
55 use std::collections::{HashSet, hash_map, HashMap};
56 use std::sync::{Arc,Mutex};
57 use std::sync::atomic;
60 struct FuzzEstimator {}
61 impl FeeEstimator for FuzzEstimator {
62 fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
67 pub struct TestBroadcaster {}
68 impl BroadcasterInterface for TestBroadcaster {
69 fn broadcast_transaction(&self, _tx: &Transaction) { }
72 pub struct VecWriter(pub Vec<u8>);
73 impl Writer for VecWriter {
74 fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
75 self.0.extend_from_slice(buf);
78 fn size_hint(&mut self, size: usize) {
79 self.0.reserve_exact(size);
83 static mut IN_RESTORE: bool = false;
84 pub struct TestChannelMonitor {
85 pub simple_monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>,
86 pub update_ret: Mutex<Result<(), channelmonitor::ChannelMonitorUpdateErr>>,
87 pub latest_good_update: Mutex<HashMap<OutPoint, Vec<u8>>>,
88 pub latest_update_good: Mutex<HashMap<OutPoint, bool>>,
89 pub latest_updates_good_at_last_ser: Mutex<HashMap<OutPoint, bool>>,
90 pub should_update_manager: atomic::AtomicBool,
92 impl TestChannelMonitor {
93 pub fn new(chain_monitor: Arc<dyn chaininterface::ChainWatchInterface>, broadcaster: Arc<dyn chaininterface::BroadcasterInterface>, logger: Arc<dyn Logger>, feeest: Arc<dyn chaininterface::FeeEstimator>) -> Self {
95 simple_monitor: channelmonitor::SimpleManyChannelMonitor::new(chain_monitor, broadcaster, logger, feeest),
96 update_ret: Mutex::new(Ok(())),
97 latest_good_update: Mutex::new(HashMap::new()),
98 latest_update_good: Mutex::new(HashMap::new()),
99 latest_updates_good_at_last_ser: Mutex::new(HashMap::new()),
100 should_update_manager: atomic::AtomicBool::new(false),
104 impl channelmonitor::ManyChannelMonitor for TestChannelMonitor {
105 fn add_update_monitor(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
106 let ret = self.update_ret.lock().unwrap().clone();
107 if let Ok(()) = ret {
108 let mut ser = VecWriter(Vec::new());
109 monitor.write_for_disk(&mut ser).unwrap();
110 self.latest_good_update.lock().unwrap().insert(funding_txo, ser.0);
111 match self.latest_update_good.lock().unwrap().entry(funding_txo) {
112 hash_map::Entry::Vacant(e) => { e.insert(true); },
113 hash_map::Entry::Occupied(mut e) => {
114 if !e.get() && unsafe { IN_RESTORE } {
115 // Technically we can't consider an update to be "good" unless we're doing
116 // it in response to a test_restore_channel_monitor as the channel may
117 // still be waiting on such a call, so only set us to good if we're in the
118 // middle of a restore call.
123 self.should_update_manager.store(true, atomic::Ordering::Relaxed);
125 self.latest_update_good.lock().unwrap().insert(funding_txo, false);
127 assert!(self.simple_monitor.add_update_monitor(funding_txo, monitor).is_ok());
131 fn fetch_pending_htlc_updated(&self) -> Vec<HTLCUpdate> {
132 return self.simple_monitor.fetch_pending_htlc_updated();
138 session_id: atomic::AtomicU8,
139 channel_id: atomic::AtomicU8,
141 impl KeysInterface for KeyProvider {
142 fn get_node_secret(&self) -> SecretKey {
143 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, self.node_id]).unwrap()
146 fn get_destination_script(&self) -> Script {
147 let secp_ctx = Secp256k1::signing_only();
148 let channel_monitor_claim_key = SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, self.node_id]).unwrap();
149 let our_channel_monitor_claim_key_hash = Hash160::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
150 Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
153 fn get_shutdown_pubkey(&self) -> PublicKey {
154 let secp_ctx = Secp256k1::signing_only();
155 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, self.node_id]).unwrap())
158 fn get_channel_keys(&self, _inbound: bool) -> ChannelKeys {
160 funding_key: SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, self.node_id]).unwrap(),
161 revocation_base_key: SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, self.node_id]).unwrap(),
162 payment_base_key: SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, self.node_id]).unwrap(),
163 delayed_payment_base_key: SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, self.node_id]).unwrap(),
164 htlc_base_key: SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, self.node_id]).unwrap(),
165 commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, self.node_id],
169 fn get_onion_rand(&self) -> (SecretKey, [u8; 32]) {
170 let id = self.session_id.fetch_add(1, atomic::Ordering::Relaxed);
171 (SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 10, self.node_id]).unwrap(),
175 fn get_channel_id(&self) -> [u8; 32] {
176 let id = self.channel_id.fetch_add(1, atomic::Ordering::Relaxed);
177 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 11, self.node_id]
182 pub fn do_test(data: &[u8]) {
183 let fee_est = Arc::new(FuzzEstimator{});
184 let broadcast = Arc::new(TestBroadcaster{});
186 macro_rules! make_node {
187 ($node_id: expr) => { {
188 let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new($node_id.to_string()));
189 let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
190 let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone()));
192 let keys_manager = Arc::new(KeyProvider { node_id: $node_id, session_id: atomic::AtomicU8::new(0), channel_id: atomic::AtomicU8::new(0) });
193 let mut config = UserConfig::new();
194 config.channel_options.fee_proportional_millionths = 0;
195 config.channel_options.announced_channel = true;
196 config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
197 (ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, 0).unwrap(),
202 macro_rules! reload_node {
203 ($ser: expr, $node_id: expr, $old_monitors: expr) => { {
204 let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new($node_id.to_string()));
205 let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
206 let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone()));
208 let keys_manager = Arc::new(KeyProvider { node_id: $node_id, session_id: atomic::AtomicU8::new(0), channel_id: atomic::AtomicU8::new(0) });
209 let mut config = UserConfig::new();
210 config.channel_options.fee_proportional_millionths = 0;
211 config.channel_options.announced_channel = true;
212 config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
214 let mut monitors = HashMap::new();
215 let mut old_monitors = $old_monitors.latest_good_update.lock().unwrap();
216 for (outpoint, monitor_ser) in old_monitors.drain() {
217 monitors.insert(outpoint, <(Sha256d, ChannelMonitor)>::read(&mut Cursor::new(&monitor_ser), Arc::clone(&logger)).expect("Failed to read monitor").1);
218 monitor.latest_good_update.lock().unwrap().insert(outpoint, monitor_ser);
220 let mut monitor_refs = HashMap::new();
221 for (outpoint, monitor) in monitors.iter() {
222 monitor_refs.insert(*outpoint, monitor);
225 let read_args = ChannelManagerReadArgs {
227 fee_estimator: fee_est.clone(),
228 monitor: monitor.clone(),
229 tx_broadcaster: broadcast.clone(),
231 default_config: config,
232 channel_monitors: &monitor_refs,
235 let res = (<(Sha256d, ChannelManager)>::read(&mut Cursor::new(&$ser.0), read_args).expect("Failed to read manager").1, monitor);
236 for (_, was_good) in $old_monitors.latest_updates_good_at_last_ser.lock().unwrap().iter() {
238 // If the last time we updated a monitor we didn't successfully update (and we
239 // have sense updated our serialized copy of the ChannelManager) we may
240 // force-close the channel on our counterparty cause we know we're missing
241 // something. Thus, we just return here since we can't continue to test.
249 let mut channel_txn = Vec::new();
250 macro_rules! make_channel {
251 ($source: expr, $dest: expr, $chan_id: expr) => { {
252 $source.create_channel($dest.get_our_node_id(), 10000000, 42, 0).unwrap();
254 let events = $source.get_and_clear_pending_msg_events();
255 assert_eq!(events.len(), 1);
256 if let events::MessageSendEvent::SendOpenChannel { ref msg, .. } = events[0] {
258 } else { panic!("Wrong event type"); }
261 $dest.handle_open_channel(&$source.get_our_node_id(), LocalFeatures::new(), &open_channel).unwrap();
262 let accept_channel = {
263 let events = $dest.get_and_clear_pending_msg_events();
264 assert_eq!(events.len(), 1);
265 if let events::MessageSendEvent::SendAcceptChannel { ref msg, .. } = events[0] {
267 } else { panic!("Wrong event type"); }
270 $source.handle_accept_channel(&$dest.get_our_node_id(), LocalFeatures::new(), &accept_channel).unwrap();
272 let events = $source.get_and_clear_pending_events();
273 assert_eq!(events.len(), 1);
274 if let events::Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, .. } = events[0] {
275 let tx = Transaction { version: $chan_id, lock_time: 0, input: Vec::new(), output: vec![TxOut {
276 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
278 let funding_output = OutPoint::new(tx.txid(), 0);
279 $source.funding_transaction_generated(&temporary_channel_id, funding_output);
280 channel_txn.push(tx);
281 } else { panic!("Wrong event type"); }
284 let funding_created = {
285 let events = $source.get_and_clear_pending_msg_events();
286 assert_eq!(events.len(), 1);
287 if let events::MessageSendEvent::SendFundingCreated { ref msg, .. } = events[0] {
289 } else { panic!("Wrong event type"); }
291 $dest.handle_funding_created(&$source.get_our_node_id(), &funding_created).unwrap();
293 let funding_signed = {
294 let events = $dest.get_and_clear_pending_msg_events();
295 assert_eq!(events.len(), 1);
296 if let events::MessageSendEvent::SendFundingSigned { ref msg, .. } = events[0] {
298 } else { panic!("Wrong event type"); }
300 $source.handle_funding_signed(&$dest.get_our_node_id(), &funding_signed).unwrap();
303 let events = $source.get_and_clear_pending_events();
304 assert_eq!(events.len(), 1);
305 if let events::Event::FundingBroadcastSafe { .. } = events[0] {
306 } else { panic!("Wrong event type"); }
311 macro_rules! confirm_txn {
313 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
314 let mut txn = Vec::with_capacity(channel_txn.len());
315 let mut posn = Vec::with_capacity(channel_txn.len());
316 for i in 0..channel_txn.len() {
317 txn.push(&channel_txn[i]);
318 posn.push(i as u32 + 1);
320 $node.block_connected(&header, 1, &txn, &posn);
322 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
323 $node.block_connected(&header, i, &Vec::new(), &[0; 0]);
328 macro_rules! lock_fundings {
329 ($nodes: expr) => { {
330 let mut node_events = Vec::new();
331 for node in $nodes.iter() {
332 node_events.push(node.get_and_clear_pending_msg_events());
334 for (idx, node_event) in node_events.iter().enumerate() {
335 for event in node_event {
336 if let events::MessageSendEvent::SendFundingLocked { ref node_id, ref msg } = event {
337 for node in $nodes.iter() {
338 if node.get_our_node_id() == *node_id {
339 node.handle_funding_locked(&$nodes[idx].get_our_node_id(), msg).unwrap();
342 } else { panic!("Wrong event type"); }
346 for node in $nodes.iter() {
347 let events = node.get_and_clear_pending_msg_events();
348 for event in events {
349 if let events::MessageSendEvent::SendAnnouncementSignatures { .. } = event {
350 } else { panic!("Wrong event type"); }
356 // 3 nodes is enough to hit all the possible cases, notably unknown-source-unknown-dest
358 let (mut node_a, mut monitor_a) = make_node!(0);
359 let (mut node_b, mut monitor_b) = make_node!(1);
360 let (mut node_c, mut monitor_c) = make_node!(2);
362 let mut nodes = [node_a, node_b, node_c];
364 make_channel!(nodes[0], nodes[1], 0);
365 make_channel!(nodes[1], nodes[2], 1);
367 for node in nodes.iter() {
371 lock_fundings!(nodes);
373 let chan_a = nodes[0].list_usable_channels()[0].short_channel_id.unwrap();
374 let chan_b = nodes[2].list_usable_channels()[0].short_channel_id.unwrap();
376 let mut payment_id = 0;
378 let mut chan_a_disconnected = false;
379 let mut chan_b_disconnected = false;
380 let mut ba_events = Vec::new();
381 let mut bc_events = Vec::new();
383 let mut node_a_ser = VecWriter(Vec::new());
384 nodes[0].write(&mut node_a_ser).unwrap();
385 let mut node_b_ser = VecWriter(Vec::new());
386 nodes[1].write(&mut node_b_ser).unwrap();
387 let mut node_c_ser = VecWriter(Vec::new());
388 nodes[2].write(&mut node_c_ser).unwrap();
390 macro_rules! test_err {
394 Err(LightningError { action: ErrorAction::IgnoreError, .. }) => { },
395 _ => { $res.unwrap() },
400 macro_rules! test_return {
402 assert_eq!(nodes[0].list_channels().len(), 1);
403 assert_eq!(nodes[1].list_channels().len(), 2);
404 assert_eq!(nodes[2].list_channels().len(), 1);
409 let mut read_pos = 0;
410 macro_rules! get_slice {
413 let slice_len = $len as usize;
414 if data.len() < read_pos + slice_len {
417 read_pos += slice_len;
418 &data[read_pos - slice_len..read_pos]
424 macro_rules! send_payment {
425 ($source: expr, $dest: expr) => { {
426 let payment_hash = Sha256::hash(&[payment_id; 1]);
427 payment_id = payment_id.wrapping_add(1);
428 if let Err(_) = $source.send_payment(Route {
429 hops: vec![RouteHop {
430 pubkey: $dest.0.get_our_node_id(),
431 short_channel_id: $dest.1,
433 cltv_expiry_delta: 200,
435 }, PaymentHash(payment_hash.into_inner())) {
436 // Probably ran out of funds
440 ($source: expr, $middle: expr, $dest: expr) => { {
441 let payment_hash = Sha256::hash(&[payment_id; 1]);
442 payment_id = payment_id.wrapping_add(1);
443 if let Err(_) = $source.send_payment(Route {
444 hops: vec![RouteHop {
445 pubkey: $middle.0.get_our_node_id(),
446 short_channel_id: $middle.1,
448 cltv_expiry_delta: 100,
450 pubkey: $dest.0.get_our_node_id(),
451 short_channel_id: $dest.1,
453 cltv_expiry_delta: 200,
455 }, PaymentHash(payment_hash.into_inner())) {
456 // Probably ran out of funds
462 macro_rules! process_msg_events {
463 ($node: expr, $corrupt_forward: expr) => { {
464 let events = if $node == 1 {
465 let mut new_events = Vec::new();
466 mem::swap(&mut new_events, &mut ba_events);
467 new_events.extend_from_slice(&bc_events[..]);
470 } else { Vec::new() };
471 for event in events.iter().chain(nodes[$node].get_and_clear_pending_msg_events().iter()) {
473 events::MessageSendEvent::UpdateHTLCs { ref node_id, updates: CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
474 for dest in nodes.iter() {
475 if dest.get_our_node_id() == *node_id {
476 assert!(update_fee.is_none());
477 for update_add in update_add_htlcs {
478 if !$corrupt_forward {
479 test_err!(dest.handle_update_add_htlc(&nodes[$node].get_our_node_id(), &update_add));
481 // Corrupt the update_add_htlc message so that its HMAC
482 // check will fail and we generate a
483 // update_fail_malformed_htlc instead of an
484 // update_fail_htlc as we do when we reject a payment.
485 let mut msg_ser = update_add.encode();
486 msg_ser[1000] ^= 0xff;
487 let new_msg = UpdateAddHTLC::read(&mut Cursor::new(&msg_ser)).unwrap();
488 test_err!(dest.handle_update_add_htlc(&nodes[$node].get_our_node_id(), &new_msg));
491 for update_fulfill in update_fulfill_htlcs {
492 test_err!(dest.handle_update_fulfill_htlc(&nodes[$node].get_our_node_id(), &update_fulfill));
494 for update_fail in update_fail_htlcs {
495 test_err!(dest.handle_update_fail_htlc(&nodes[$node].get_our_node_id(), &update_fail));
497 for update_fail_malformed in update_fail_malformed_htlcs {
498 test_err!(dest.handle_update_fail_malformed_htlc(&nodes[$node].get_our_node_id(), &update_fail_malformed));
500 test_err!(dest.handle_commitment_signed(&nodes[$node].get_our_node_id(), &commitment_signed));
504 events::MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
505 for dest in nodes.iter() {
506 if dest.get_our_node_id() == *node_id {
507 test_err!(dest.handle_revoke_and_ack(&nodes[$node].get_our_node_id(), msg));
511 events::MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } => {
512 for dest in nodes.iter() {
513 if dest.get_our_node_id() == *node_id {
514 test_err!(dest.handle_channel_reestablish(&nodes[$node].get_our_node_id(), msg));
518 events::MessageSendEvent::SendFundingLocked { .. } => {
519 // Can be generated as a reestablish response
521 events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {
522 // Can be generated due to a payment forward being rejected due to a
523 // channel having previously failed a monitor update
525 _ => panic!("Unhandled message event"),
531 macro_rules! drain_msg_events_on_disconnect {
532 ($counterparty_id: expr) => { {
533 if $counterparty_id == 0 {
534 for event in nodes[0].get_and_clear_pending_msg_events() {
536 events::MessageSendEvent::UpdateHTLCs { .. } => {},
537 events::MessageSendEvent::SendRevokeAndACK { .. } => {},
538 events::MessageSendEvent::SendChannelReestablish { .. } => {},
539 events::MessageSendEvent::SendFundingLocked { .. } => {},
540 events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
541 _ => panic!("Unhandled message event"),
546 for event in nodes[2].get_and_clear_pending_msg_events() {
548 events::MessageSendEvent::UpdateHTLCs { .. } => {},
549 events::MessageSendEvent::SendRevokeAndACK { .. } => {},
550 events::MessageSendEvent::SendChannelReestablish { .. } => {},
551 events::MessageSendEvent::SendFundingLocked { .. } => {},
552 events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
553 _ => panic!("Unhandled message event"),
558 let mut events = nodes[1].get_and_clear_pending_msg_events();
559 let drop_node_id = if $counterparty_id == 0 { nodes[0].get_our_node_id() } else { nodes[2].get_our_node_id() };
560 let msg_sink = if $counterparty_id == 0 { &mut bc_events } else { &mut ba_events };
561 for event in events.drain(..) {
562 let push = match event {
563 events::MessageSendEvent::UpdateHTLCs { ref node_id, .. } => {
564 if *node_id != drop_node_id { true } else { false }
566 events::MessageSendEvent::SendRevokeAndACK { ref node_id, .. } => {
567 if *node_id != drop_node_id { true } else { false }
569 events::MessageSendEvent::SendChannelReestablish { ref node_id, .. } => {
570 if *node_id != drop_node_id { true } else { false }
572 events::MessageSendEvent::SendFundingLocked { .. } => false,
573 events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => false,
574 _ => panic!("Unhandled message event"),
576 if push { msg_sink.push(event); }
581 macro_rules! process_events {
582 ($node: expr, $fail: expr) => { {
583 // In case we get 256 payments we may have a hash collision, resulting in the
584 // second claim/fail call not finding the duplicate-hash HTLC, so we have to
585 // deduplicate the calls here.
586 let mut claim_set = HashSet::new();
587 let mut events = nodes[$node].get_and_clear_pending_events();
588 // Sort events so that PendingHTLCsForwardable get processed last. This avoids a
589 // case where we first process a PendingHTLCsForwardable, then claim/fail on a
590 // PaymentReceived, claiming/failing two HTLCs, but leaving a just-generated
591 // PaymentReceived event for the second HTLC in our pending_events (and breaking
592 // our claim_set deduplication).
593 events.sort_by(|a, b| {
594 if let events::Event::PaymentReceived { .. } = a {
595 if let events::Event::PendingHTLCsForwardable { .. } = b {
597 } else { Ordering::Equal }
598 } else if let events::Event::PendingHTLCsForwardable { .. } = a {
599 if let events::Event::PaymentReceived { .. } = b {
601 } else { Ordering::Equal }
602 } else { Ordering::Equal }
604 for event in events.drain(..) {
606 events::Event::PaymentReceived { payment_hash, .. } => {
607 if claim_set.insert(payment_hash.0) {
609 assert!(nodes[$node].fail_htlc_backwards(&payment_hash));
611 assert!(nodes[$node].claim_funds(PaymentPreimage(payment_hash.0), 5_000_000));
615 events::Event::PaymentSent { .. } => {},
616 events::Event::PaymentFailed { .. } => {},
617 events::Event::PendingHTLCsForwardable { .. } => {
618 nodes[$node].process_pending_htlc_forwards();
620 _ => panic!("Unhandled event"),
626 match get_slice!(1)[0] {
627 0x00 => *monitor_a.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure),
628 0x01 => *monitor_b.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure),
629 0x02 => *monitor_c.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure),
630 0x03 => *monitor_a.update_ret.lock().unwrap() = Ok(()),
631 0x04 => *monitor_b.update_ret.lock().unwrap() = Ok(()),
632 0x05 => *monitor_c.update_ret.lock().unwrap() = Ok(()),
633 0x06 => { unsafe { IN_RESTORE = true }; nodes[0].test_restore_channel_monitor(); unsafe { IN_RESTORE = false }; },
634 0x07 => { unsafe { IN_RESTORE = true }; nodes[1].test_restore_channel_monitor(); unsafe { IN_RESTORE = false }; },
635 0x08 => { unsafe { IN_RESTORE = true }; nodes[2].test_restore_channel_monitor(); unsafe { IN_RESTORE = false }; },
636 0x09 => send_payment!(nodes[0], (&nodes[1], chan_a)),
637 0x0a => send_payment!(nodes[1], (&nodes[0], chan_a)),
638 0x0b => send_payment!(nodes[1], (&nodes[2], chan_b)),
639 0x0c => send_payment!(nodes[2], (&nodes[1], chan_b)),
640 0x0d => send_payment!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b)),
641 0x0e => send_payment!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a)),
643 if !chan_a_disconnected {
644 nodes[0].peer_disconnected(&nodes[1].get_our_node_id(), false);
645 nodes[1].peer_disconnected(&nodes[0].get_our_node_id(), false);
646 chan_a_disconnected = true;
647 drain_msg_events_on_disconnect!(0);
651 if !chan_b_disconnected {
652 nodes[1].peer_disconnected(&nodes[2].get_our_node_id(), false);
653 nodes[2].peer_disconnected(&nodes[1].get_our_node_id(), false);
654 chan_b_disconnected = true;
655 drain_msg_events_on_disconnect!(2);
659 if chan_a_disconnected {
660 nodes[0].peer_connected(&nodes[1].get_our_node_id());
661 nodes[1].peer_connected(&nodes[0].get_our_node_id());
662 chan_a_disconnected = false;
666 if chan_b_disconnected {
667 nodes[1].peer_connected(&nodes[2].get_our_node_id());
668 nodes[2].peer_connected(&nodes[1].get_our_node_id());
669 chan_b_disconnected = false;
672 0x13 => process_msg_events!(0, true),
673 0x14 => process_msg_events!(0, false),
674 0x15 => process_events!(0, true),
675 0x16 => process_events!(0, false),
676 0x17 => process_msg_events!(1, true),
677 0x18 => process_msg_events!(1, false),
678 0x19 => process_events!(1, true),
679 0x1a => process_events!(1, false),
680 0x1b => process_msg_events!(2, true),
681 0x1c => process_msg_events!(2, false),
682 0x1d => process_events!(2, true),
683 0x1e => process_events!(2, false),
685 if !chan_a_disconnected {
686 nodes[1].peer_disconnected(&nodes[0].get_our_node_id(), false);
687 chan_a_disconnected = true;
688 drain_msg_events_on_disconnect!(0);
690 let (new_node_a, new_monitor_a) = reload_node!(node_a_ser, 0, monitor_a);
691 node_a = Arc::new(new_node_a);
692 nodes[0] = node_a.clone();
693 monitor_a = new_monitor_a;
696 if !chan_a_disconnected {
697 nodes[0].peer_disconnected(&nodes[1].get_our_node_id(), false);
698 chan_a_disconnected = true;
699 nodes[0].get_and_clear_pending_msg_events();
702 if !chan_b_disconnected {
703 nodes[2].peer_disconnected(&nodes[1].get_our_node_id(), false);
704 chan_b_disconnected = true;
705 nodes[2].get_and_clear_pending_msg_events();
708 let (new_node_b, new_monitor_b) = reload_node!(node_b_ser, 1, monitor_b);
709 node_b = Arc::new(new_node_b);
710 nodes[1] = node_b.clone();
711 monitor_b = new_monitor_b;
714 if !chan_b_disconnected {
715 nodes[1].peer_disconnected(&nodes[2].get_our_node_id(), false);
716 chan_b_disconnected = true;
717 drain_msg_events_on_disconnect!(2);
719 let (new_node_c, new_monitor_c) = reload_node!(node_c_ser, 2, monitor_c);
720 node_c = Arc::new(new_node_c);
721 nodes[2] = node_c.clone();
722 monitor_c = new_monitor_c;
727 if monitor_a.should_update_manager.load(atomic::Ordering::Relaxed) {
728 node_a_ser.0.clear();
729 nodes[0].write(&mut node_a_ser).unwrap();
730 monitor_a.should_update_manager.store(false, atomic::Ordering::Relaxed);
731 *monitor_a.latest_updates_good_at_last_ser.lock().unwrap() = monitor_a.latest_update_good.lock().unwrap().clone();
733 if monitor_b.should_update_manager.load(atomic::Ordering::Relaxed) {
734 node_b_ser.0.clear();
735 nodes[1].write(&mut node_b_ser).unwrap();
736 monitor_b.should_update_manager.store(false, atomic::Ordering::Relaxed);
737 *monitor_b.latest_updates_good_at_last_ser.lock().unwrap() = monitor_b.latest_update_good.lock().unwrap().clone();
739 if monitor_c.should_update_manager.load(atomic::Ordering::Relaxed) {
740 node_c_ser.0.clear();
741 nodes[2].write(&mut node_c_ser).unwrap();
742 monitor_c.should_update_manager.store(false, atomic::Ordering::Relaxed);
743 *monitor_c.latest_updates_good_at_last_ser.lock().unwrap() = monitor_c.latest_update_good.lock().unwrap().clone();
748 #[cfg(feature = "afl")]
749 #[macro_use] extern crate afl;
750 #[cfg(feature = "afl")]
757 #[cfg(feature = "honggfuzz")]
758 #[macro_use] extern crate honggfuzz;
759 #[cfg(feature = "honggfuzz")]
768 #[cfg(feature = "libfuzzer_fuzz")]
769 #[macro_use] extern crate libfuzzer_sys;
770 #[cfg(feature = "libfuzzer_fuzz")]
771 fuzz_target!(|data: &[u8]| {
779 fn duplicate_crash() {
780 super::do_test(&::hex::decode("00").unwrap());