`rustfmt`: `fuzz/src/fromstr_to_netaddress.rs`
[rust-lightning] / fuzz / src / full_stack.rs
1 // This file is Copyright its original authors, visible in version control
2 // history.
3 //
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
8 // licenses.
9
10 //! Test that no series of bytes received over the wire/connections created/payments sent can
11 //! result in a crash. We do this by standing up a node and then reading bytes from input to denote
12 //! actions such as creating new inbound/outbound connections, bytes to be read from a connection,
13 //! or payments to send/ways to handle events generated.
14 //! This test has been very useful, though due to its complexity good starting inputs are critical.
15
16 use bitcoin::amount::Amount;
17 use bitcoin::blockdata::constants::genesis_block;
18 use bitcoin::blockdata::transaction::{Transaction, TxOut};
19 use bitcoin::blockdata::script::{Builder, ScriptBuf};
20 use bitcoin::blockdata::opcodes;
21 use bitcoin::blockdata::locktime::absolute::LockTime;
22 use bitcoin::consensus::encode::deserialize;
23 use bitcoin::network::Network;
24 use bitcoin::transaction::Version;
25
26 use bitcoin::WPubkeyHash;
27 use bitcoin::hashes::hex::FromHex;
28 use bitcoin::hashes::Hash as _;
29 use bitcoin::hashes::sha256::Hash as Sha256;
30 use bitcoin::hashes::sha256d::Hash as Sha256dHash;
31 use bitcoin::hash_types::{Txid, BlockHash};
32
33 use lightning::blinded_path::BlindedPath;
34 use lightning::blinded_path::payment::ReceiveTlvs;
35 use lightning::chain;
36 use lightning::chain::{BestBlock, ChannelMonitorUpdateStatus, Confirm, Listen};
37 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
38 use lightning::chain::chainmonitor;
39 use lightning::chain::transaction::OutPoint;
40 use lightning::sign::{InMemorySigner, Recipient, KeyMaterial, EntropySource, NodeSigner, SignerProvider};
41 use lightning::events::Event;
42 use lightning::ln::{ChannelId, PaymentHash, PaymentPreimage, PaymentSecret};
43 use lightning::ln::channel_state::ChannelDetails;
44 use lightning::ln::channelmanager::{ChainParameters, ChannelManager, PaymentId, RecipientOnionFields, Retry, InterceptId};
45 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor,IgnoringMessageHandler};
46 use lightning::ln::msgs::{self, DecodeError};
47 use lightning::ln::script::ShutdownScript;
48 use lightning::ln::functional_test_utils::*;
49 use lightning::offers::invoice::{BlindedPayInfo, UnsignedBolt12Invoice};
50 use lightning::offers::invoice_request::UnsignedInvoiceRequest;
51 use lightning::onion_message::messenger::{Destination, MessageRouter, OnionMessagePath};
52 use lightning::routing::gossip::{P2PGossipSync, NetworkGraph};
53 use lightning::routing::utxo::UtxoLookup;
54 use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteParameters, Router};
55 use lightning::util::config::{ChannelConfig, UserConfig};
56 use lightning::util::hash_tables::*;
57 use lightning::util::errors::APIError;
58 use lightning::util::test_channel_signer::{TestChannelSigner, EnforcementState};
59 use lightning::util::logger::Logger;
60 use lightning::util::ser::{Readable, ReadableArgs, Writeable};
61
62 use crate::utils::test_logger;
63 use crate::utils::test_persister::TestPersister;
64
65 use bitcoin::secp256k1::{Message, PublicKey, SecretKey, Scalar, Secp256k1, self};
66 use bitcoin::secp256k1::ecdh::SharedSecret;
67 use bitcoin::secp256k1::ecdsa::{RecoverableSignature, Signature};
68 use bitcoin::secp256k1::schnorr;
69
70 use std::cell::RefCell;
71 use std::convert::TryInto;
72 use std::cmp;
73 use std::sync::{Arc, Mutex};
74 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
75 use bech32::u5;
76
77 #[inline]
78 pub fn slice_to_be16(v: &[u8]) -> u16 {
79         ((v[0] as u16) << 8*1) |
80         ((v[1] as u16) << 8*0)
81 }
82
83 #[inline]
84 pub fn be16_to_array(u: u16) -> [u8; 2] {
85         let mut v = [0; 2];
86         v[0] = ((u >> 8*1) & 0xff) as u8;
87         v[1] = ((u >> 8*0) & 0xff) as u8;
88         v
89 }
90
91 #[inline]
92 pub fn slice_to_be24(v: &[u8]) -> u32 {
93         ((v[0] as u32) << 8*2) |
94         ((v[1] as u32) << 8*1) |
95         ((v[2] as u32) << 8*0)
96 }
97
98 struct InputData {
99         data: Vec<u8>,
100         read_pos: AtomicUsize,
101 }
102 impl InputData {
103         fn get_slice(&self, len: usize) -> Option<&[u8]> {
104                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
105                 if self.data.len() < old_pos + len {
106                         return None;
107                 }
108                 Some(&self.data[old_pos..old_pos + len])
109         }
110 }
111 impl std::io::Read for &InputData {
112         fn read(&mut self, buf: &mut [u8]) -> std::io::Result<usize> {
113                 if let Some(sl) = self.get_slice(buf.len()) {
114                         buf.copy_from_slice(sl);
115                         Ok(buf.len())
116                 } else {
117                         Ok(0)
118                 }
119         }
120 }
121
122 struct FuzzEstimator {
123         input: Arc<InputData>,
124 }
125 impl FeeEstimator for FuzzEstimator {
126         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u32 {
127                 //TODO: We should actually be testing at least much more than 64k...
128                 match self.input.get_slice(2) {
129                         Some(slice) => cmp::max(slice_to_be16(slice) as u32, 253),
130                         None => 253
131                 }
132         }
133 }
134
135 struct FuzzRouter {}
136
137 impl Router for FuzzRouter {
138         fn find_route(
139                 &self, _payer: &PublicKey, _params: &RouteParameters, _first_hops: Option<&[&ChannelDetails]>,
140                 _inflight_htlcs: InFlightHtlcs
141         ) -> Result<Route, msgs::LightningError> {
142                 Err(msgs::LightningError {
143                         err: String::from("Not implemented"),
144                         action: msgs::ErrorAction::IgnoreError
145                 })
146         }
147
148         fn create_blinded_payment_paths<T: secp256k1::Signing + secp256k1::Verification>(
149                 &self, _recipient: PublicKey, _first_hops: Vec<ChannelDetails>, _tlvs: ReceiveTlvs,
150                 _amount_msats: u64, _secp_ctx: &Secp256k1<T>,
151         ) -> Result<Vec<(BlindedPayInfo, BlindedPath)>, ()> {
152                 unreachable!()
153         }
154 }
155
156 impl MessageRouter for FuzzRouter {
157         fn find_path(
158                 &self, _sender: PublicKey, _peers: Vec<PublicKey>, _destination: Destination
159         ) -> Result<OnionMessagePath, ()> {
160                 unreachable!()
161         }
162
163         fn create_blinded_paths<T: secp256k1::Signing + secp256k1::Verification>(
164                 &self, _recipient: PublicKey, _peers: Vec<PublicKey>, _secp_ctx: &Secp256k1<T>,
165         ) -> Result<Vec<BlindedPath>, ()> {
166                 unreachable!()
167         }
168 }
169
170 struct TestBroadcaster {
171         txn_broadcasted: Mutex<Vec<Transaction>>,
172 }
173 impl BroadcasterInterface for TestBroadcaster {
174         fn broadcast_transactions(&self, txs: &[&Transaction]) {
175                 let owned_txs: Vec<Transaction> = txs.iter().map(|tx| (*tx).clone()).collect();
176                 self.txn_broadcasted.lock().unwrap().extend(owned_txs);
177         }
178 }
179
180 #[derive(Clone)]
181 struct Peer<'a> {
182         id: u8,
183         peers_connected: &'a RefCell<[bool; 256]>,
184 }
185 impl<'a> SocketDescriptor for Peer<'a> {
186         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
187                 data.len()
188         }
189         fn disconnect_socket(&mut self) {
190                 assert!(self.peers_connected.borrow()[self.id as usize]);
191                 self.peers_connected.borrow_mut()[self.id as usize] = false;
192         }
193 }
194 impl<'a> PartialEq for Peer<'a> {
195         fn eq(&self, other: &Self) -> bool {
196                 self.id == other.id
197         }
198 }
199 impl<'a> Eq for Peer<'a> {}
200 impl<'a> std::hash::Hash for Peer<'a> {
201         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
202                 self.id.hash(h)
203         }
204 }
205
206 type ChannelMan<'a> = ChannelManager<
207         Arc<chainmonitor::ChainMonitor<TestChannelSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
208         Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<KeyProvider>, Arc<KeyProvider>, Arc<FuzzEstimator>, &'a FuzzRouter, Arc<dyn Logger>>;
209 type PeerMan<'a> = PeerManager<Peer<'a>, Arc<ChannelMan<'a>>, Arc<P2PGossipSync<Arc<NetworkGraph<Arc<dyn Logger>>>, Arc<dyn UtxoLookup>, Arc<dyn Logger>>>, IgnoringMessageHandler, Arc<dyn Logger>, IgnoringMessageHandler, Arc<KeyProvider>>;
210
211 struct MoneyLossDetector<'a> {
212         manager: Arc<ChannelMan<'a>>,
213         monitor: Arc<chainmonitor::ChainMonitor<TestChannelSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
214         handler: PeerMan<'a>,
215
216         peers: &'a RefCell<[bool; 256]>,
217         funding_txn: Vec<Transaction>,
218         txids_confirmed: HashMap<Txid, usize>,
219         header_hashes: Vec<(BlockHash, u32)>,
220         height: usize,
221         max_height: usize,
222         blocks_connected: u32,
223         error_message: String,
224 }
225 impl<'a> MoneyLossDetector<'a> {
226         pub fn new(peers: &'a RefCell<[bool; 256]>,
227                    manager: Arc<ChannelMan<'a>>,
228                    monitor: Arc<chainmonitor::ChainMonitor<TestChannelSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
229                    handler: PeerMan<'a>) -> Self {
230                 MoneyLossDetector {
231                         manager,
232                         monitor,
233                         handler,
234
235                         peers,
236                         funding_txn: Vec::new(),
237                         txids_confirmed: new_hash_map(),
238                         header_hashes: vec![(genesis_block(Network::Bitcoin).block_hash(), 0)],
239                         height: 0,
240                         max_height: 0,
241                         blocks_connected: 0,
242                         error_message: "Channel force-closed".to_string(),
243                 }
244         }
245
246         fn connect_block(&mut self, all_txn: &[Transaction]) {
247                 let mut txdata = Vec::with_capacity(all_txn.len());
248                 for (idx, tx) in all_txn.iter().enumerate() {
249                         let txid = tx.txid();
250                         self.txids_confirmed.entry(txid).or_insert_with(|| {
251                                 txdata.push((idx + 1, tx));
252                                 self.height
253                         });
254                 }
255
256                 self.blocks_connected += 1;
257                 let header = create_dummy_header(self.header_hashes[self.height].0, self.blocks_connected);
258                 self.height += 1;
259                 self.manager.transactions_confirmed(&header, &txdata, self.height as u32);
260                 self.manager.best_block_updated(&header, self.height as u32);
261                 (*self.monitor).transactions_confirmed(&header, &txdata, self.height as u32);
262                 (*self.monitor).best_block_updated(&header, self.height as u32);
263                 if self.header_hashes.len() > self.height {
264                         self.header_hashes[self.height] = (header.block_hash(), self.blocks_connected);
265                 } else {
266                         assert_eq!(self.header_hashes.len(), self.height);
267                         self.header_hashes.push((header.block_hash(), self.blocks_connected));
268                 }
269                 self.max_height = cmp::max(self.height, self.max_height);
270         }
271
272         fn disconnect_block(&mut self) {
273                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
274                         let header = create_dummy_header(self.header_hashes[self.height - 1].0, self.header_hashes[self.height].1);
275                         self.manager.block_disconnected(&header, self.height as u32);
276                         self.monitor.block_disconnected(&header, self.height as u32);
277                         self.height -= 1;
278                         let removal_height = self.height;
279                         self.txids_confirmed.retain(|_, height| {
280                                 removal_height != *height
281                         });
282                 }
283         }
284 }
285
286 impl<'a> Drop for MoneyLossDetector<'a> {
287         fn drop(&mut self) {
288                 if !::std::thread::panicking() {
289                         // Disconnect all peers
290                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
291                                 if *peer {
292                                         self.handler.socket_disconnected(&Peer{id: idx as u8, peers_connected: &self.peers});
293                                 }
294                         }
295
296                         // Force all channels onto the chain (and time out claim txn)
297                         self.manager.force_close_all_channels_broadcasting_latest_txn(self.error_message.to_string());
298                 }
299         }
300 }
301
302 struct KeyProvider {
303         node_secret: SecretKey,
304         inbound_payment_key: KeyMaterial,
305         counter: AtomicU64,
306         signer_state: RefCell<HashMap<u8, (bool, Arc<Mutex<EnforcementState>>)>>
307 }
308
309 impl EntropySource for KeyProvider {
310         fn get_secure_random_bytes(&self) -> [u8; 32] {
311                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
312                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
313                         (ctr >> 8*7) as u8, (ctr >> 8*6) as u8, (ctr >> 8*5) as u8, (ctr >> 8*4) as u8, (ctr >> 8*3) as u8, (ctr >> 8*2) as u8, (ctr >> 8*1) as u8, 14, (ctr >> 8*0) as u8]
314         }
315 }
316
317 impl NodeSigner for KeyProvider {
318         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
319                 let node_secret = match recipient {
320                         Recipient::Node => Ok(&self.node_secret),
321                         Recipient::PhantomNode => Err(())
322                 }?;
323                 Ok(PublicKey::from_secret_key(&Secp256k1::signing_only(), node_secret))
324         }
325
326         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&Scalar>) -> Result<SharedSecret, ()> {
327                 let mut node_secret = match recipient {
328                         Recipient::Node => Ok(self.node_secret.clone()),
329                         Recipient::PhantomNode => Err(())
330                 }?;
331                 if let Some(tweak) = tweak {
332                         node_secret = node_secret.mul_tweak(tweak).map_err(|_| ())?;
333                 }
334                 Ok(SharedSecret::new(other_key, &node_secret))
335         }
336
337         fn get_inbound_payment_key_material(&self) -> KeyMaterial {
338                 self.inbound_payment_key.clone()
339         }
340
341         fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5], _recipient: Recipient) -> Result<RecoverableSignature, ()> {
342                 unreachable!()
343         }
344
345         fn sign_bolt12_invoice_request(
346                 &self, _invoice_request: &UnsignedInvoiceRequest
347         ) -> Result<schnorr::Signature, ()> {
348                 unreachable!()
349         }
350
351         fn sign_bolt12_invoice(
352                 &self, _invoice: &UnsignedBolt12Invoice,
353         ) -> Result<schnorr::Signature, ()> {
354                 unreachable!()
355         }
356
357         fn sign_gossip_message(&self, msg: lightning::ln::msgs::UnsignedGossipMessage) -> Result<Signature, ()> {
358                 let msg_hash = Message::from_digest(Sha256dHash::hash(&msg.encode()[..]).to_byte_array());
359                 let secp_ctx = Secp256k1::signing_only();
360                 Ok(secp_ctx.sign_ecdsa(&msg_hash, &self.node_secret))
361         }
362 }
363
364 impl SignerProvider for KeyProvider {
365         type EcdsaSigner = TestChannelSigner;
366         #[cfg(taproot)]
367         type TaprootSigner = TestChannelSigner;
368
369         fn generate_channel_keys_id(&self, inbound: bool, _channel_value_satoshis: u64, _user_channel_id: u128) -> [u8; 32] {
370                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
371                 self.signer_state.borrow_mut().insert(ctr, (inbound, Arc::new(Mutex::new(EnforcementState::new()))));
372                 [ctr; 32]
373         }
374
375         fn derive_channel_signer(&self, channel_value_satoshis: u64, channel_keys_id: [u8; 32]) -> Self::EcdsaSigner {
376                 let secp_ctx = Secp256k1::signing_only();
377                 let ctr = channel_keys_id[0];
378                 let (inbound, state) = self.signer_state.borrow().get(&ctr).unwrap().clone();
379                 TestChannelSigner::new_with_revoked(if inbound {
380                         InMemorySigner::new(
381                                 &secp_ctx,
382                                 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, ctr]).unwrap(),
383                                 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, ctr]).unwrap(),
384                                 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, ctr]).unwrap(),
385                                 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, ctr]).unwrap(),
386                                 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, ctr]).unwrap(),
387                                 [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, ctr],
388                                 channel_value_satoshis,
389                                 channel_keys_id,
390                                 channel_keys_id,
391                         )
392                 } else {
393                         InMemorySigner::new(
394                                 &secp_ctx,
395                                 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, ctr]).unwrap(),
396                                 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, ctr]).unwrap(),
397                                 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, 9, ctr]).unwrap(),
398                                 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, 10, ctr]).unwrap(),
399                                 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, 11, ctr]).unwrap(),
400                                 [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, 12, ctr],
401                                 channel_value_satoshis,
402                                 channel_keys_id,
403                                 channel_keys_id,
404                         )
405                 }, state, false)
406         }
407
408         fn read_chan_signer(&self, mut data: &[u8]) -> Result<TestChannelSigner, DecodeError> {
409                 let inner: InMemorySigner = ReadableArgs::read(&mut data, self)?;
410                 let state = Arc::new(Mutex::new(EnforcementState::new()));
411
412                 Ok(TestChannelSigner::new_with_revoked(
413                         inner,
414                         state,
415                         false
416                 ))
417         }
418
419         fn get_destination_script(&self, _channel_keys_id: [u8; 32]) -> Result<ScriptBuf, ()> {
420                 let secp_ctx = Secp256k1::signing_only();
421                 let channel_monitor_claim_key = SecretKey::from_slice(&<Vec<u8>>::from_hex("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
422                 let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
423                 Ok(Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(our_channel_monitor_claim_key_hash).into_script())
424         }
425
426         fn get_shutdown_scriptpubkey(&self) -> Result<ShutdownScript, ()> {
427                 let secp_ctx = Secp256k1::signing_only();
428                 let secret_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, 0, 1]).unwrap();
429                 let pubkey_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &secret_key).serialize());
430                 Ok(ShutdownScript::new_p2wpkh(&pubkey_hash))
431         }
432 }
433
434 #[inline]
435 pub fn do_test(mut data: &[u8], logger: &Arc<dyn Logger>) {
436         if data.len() < 32 { return; }
437
438         let our_network_key = match SecretKey::from_slice(&data[..32]) {
439                 Ok(key) => key,
440                 Err(_) => return,
441         };
442         data = &data[32..];
443
444         let config: UserConfig = if let Ok(config) = Readable::read(&mut data) { config } else { return; };
445
446         let input = Arc::new(InputData {
447                 data: data.to_vec(),
448                 read_pos: AtomicUsize::new(0),
449         });
450         let fee_est = Arc::new(FuzzEstimator {
451                 input: input.clone(),
452         });
453         let router = FuzzRouter {};
454
455         macro_rules! get_slice {
456                 ($len: expr) => {
457                         match input.get_slice($len as usize) {
458                                 Some(slice) => slice,
459                                 None => return,
460                         }
461                 }
462         }
463
464         macro_rules! get_bytes {
465                 ($len: expr) => { {
466                         let mut res = [0; $len];
467                         match input.get_slice($len as usize) {
468                                 Some(slice) => res.copy_from_slice(slice),
469                                 None => return,
470                         }
471                         res
472                 } }
473         }
474
475         macro_rules! get_pubkey {
476                 () => {
477                         match PublicKey::from_slice(get_slice!(33)) {
478                                 Ok(key) => key,
479                                 Err(_) => return,
480                         }
481                 }
482         }
483
484
485         let inbound_payment_key = [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, 0, 42];
486
487         let broadcast = Arc::new(TestBroadcaster{ txn_broadcasted: Mutex::new(Vec::new()) });
488         let monitor = Arc::new(chainmonitor::ChainMonitor::new(None, broadcast.clone(), Arc::clone(&logger), fee_est.clone(),
489                 Arc::new(TestPersister { update_ret: Mutex::new(ChannelMonitorUpdateStatus::Completed) })));
490
491         let keys_manager = Arc::new(KeyProvider {
492                 node_secret: our_network_key.clone(),
493                 inbound_payment_key: KeyMaterial(inbound_payment_key.try_into().unwrap()),
494                 counter: AtomicU64::new(0),
495                 signer_state: RefCell::new(new_hash_map())
496         });
497         let network = Network::Bitcoin;
498         let best_block_timestamp = genesis_block(network).header.time;
499         let params = ChainParameters {
500                 network,
501                 best_block: BestBlock::from_network(network),
502         };
503         let channelmanager = Arc::new(ChannelManager::new(fee_est.clone(), monitor.clone(), broadcast.clone(), &router, Arc::clone(&logger), keys_manager.clone(), keys_manager.clone(), keys_manager.clone(), config, params, best_block_timestamp));
504         // Adding new calls to `EntropySource::get_secure_random_bytes` during startup can change all the
505         // keys subsequently generated in this test. Rather than regenerating all the messages manually,
506         // it's easier to just increment the counter here so the keys don't change.
507         keys_manager.counter.fetch_sub(3, Ordering::AcqRel);
508         let network_graph = Arc::new(NetworkGraph::new(network, Arc::clone(&logger)));
509         let gossip_sync = Arc::new(P2PGossipSync::new(Arc::clone(&network_graph), None, Arc::clone(&logger)));
510
511         let peers = RefCell::new([false; 256]);
512         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
513                 chan_handler: channelmanager.clone(),
514                 route_handler: gossip_sync.clone(),
515                 onion_message_handler: IgnoringMessageHandler {},
516                 custom_message_handler: IgnoringMessageHandler {},
517         }, 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, 0, 15, 0], Arc::clone(&logger), keys_manager.clone()));
518
519         let mut should_forward = false;
520         let mut payments_received: Vec<PaymentHash> = Vec::new();
521         let mut intercepted_htlcs: Vec<InterceptId> = Vec::new();
522         let mut payments_sent: u16 = 0;
523         let mut pending_funding_generation: Vec<(ChannelId, PublicKey, u64, ScriptBuf)> = Vec::new();
524         let mut pending_funding_signatures = new_hash_map();
525
526         loop {
527                 match get_slice!(1)[0] {
528                         0 => {
529                                 let mut new_id = 0;
530                                 for i in 1..256 {
531                                         if !peers.borrow()[i-1] {
532                                                 new_id = i;
533                                                 break;
534                                         }
535                                 }
536                                 if new_id == 0 { return; }
537                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}, None).unwrap();
538                                 peers.borrow_mut()[new_id - 1] = true;
539                         },
540                         1 => {
541                                 let mut new_id = 0;
542                                 for i in 1..256 {
543                                         if !peers.borrow()[i-1] {
544                                                 new_id = i;
545                                                 break;
546                                         }
547                                 }
548                                 if new_id == 0 { return; }
549                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}, None).unwrap();
550                                 peers.borrow_mut()[new_id - 1] = true;
551                         },
552                         2 => {
553                                 let peer_id = get_slice!(1)[0];
554                                 if !peers.borrow()[peer_id as usize] { return; }
555                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
556                                 peers.borrow_mut()[peer_id as usize] = false;
557                         },
558                         3 => {
559                                 let peer_id = get_slice!(1)[0];
560                                 if !peers.borrow()[peer_id as usize] { return; }
561                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
562                                         Ok(res) => assert!(!res),
563                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
564                                 }
565                         },
566                         4 => {
567                                 let final_value_msat = slice_to_be24(get_slice!(3)) as u64;
568                                 let payment_params = PaymentParameters::from_node_id(get_pubkey!(), 42);
569                                 let params = RouteParameters::from_payment_params_and_value(
570                                         payment_params, final_value_msat);
571                                 let mut payment_hash = PaymentHash([0; 32]);
572                                 payment_hash.0[0..2].copy_from_slice(&be16_to_array(payments_sent));
573                                 payment_hash.0 = Sha256::hash(&payment_hash.0[..]).to_byte_array();
574                                 payments_sent += 1;
575                                 let _ = channelmanager.send_payment(
576                                         payment_hash, RecipientOnionFields::spontaneous_empty(),
577                                         PaymentId(payment_hash.0), params, Retry::Attempts(2)
578                                 );
579                         },
580                         15 => {
581                                 let final_value_msat = slice_to_be24(get_slice!(3)) as u64;
582                                 let payment_params = PaymentParameters::from_node_id(get_pubkey!(), 42);
583                                 let params = RouteParameters::from_payment_params_and_value(
584                                         payment_params, final_value_msat);
585                                 let mut payment_hash = PaymentHash([0; 32]);
586                                 payment_hash.0[0..2].copy_from_slice(&be16_to_array(payments_sent));
587                                 payment_hash.0 = Sha256::hash(&payment_hash.0[..]).to_byte_array();
588                                 payments_sent += 1;
589                                 let mut payment_secret = PaymentSecret([0; 32]);
590                                 payment_secret.0[0..2].copy_from_slice(&be16_to_array(payments_sent));
591                                 payments_sent += 1;
592                                 let _ = channelmanager.send_payment(
593                                         payment_hash, RecipientOnionFields::secret_only(payment_secret),
594                                         PaymentId(payment_hash.0), params, Retry::Attempts(2)
595                                 );
596                         },
597                         17 => {
598                                 let final_value_msat = slice_to_be24(get_slice!(3)) as u64;
599                                 let payment_params = PaymentParameters::from_node_id(get_pubkey!(), 42);
600                                 let params = RouteParameters::from_payment_params_and_value(
601                                         payment_params, final_value_msat);
602                                 let _ = channelmanager.send_preflight_probes(params, None);
603                         },
604                         18 => {
605                                 let idx = u16::from_be_bytes(get_bytes!(2)) % cmp::max(payments_sent, 1);
606                                 let mut payment_id = PaymentId([0; 32]);
607                                 payment_id.0[0..2].copy_from_slice(&idx.to_be_bytes());
608                                 channelmanager.abandon_payment(payment_id);
609                         },
610                         5 => {
611                                 let peer_id = get_slice!(1)[0];
612                                 if !peers.borrow()[peer_id as usize] { return; }
613                                 let their_key = get_pubkey!();
614                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
615                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
616                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None, None).is_err() { return; }
617                         },
618                         6 => {
619                                 let mut channels = channelmanager.list_channels();
620                                 let channel_id = get_slice!(1)[0] as usize;
621                                 if channel_id >= channels.len() { return; }
622                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
623                                 if channelmanager.close_channel(&channels[channel_id].channel_id, &channels[channel_id].counterparty.node_id).is_err() { return; }
624                         },
625                         7 => {
626                                 if should_forward {
627                                         channelmanager.process_pending_htlc_forwards();
628                                         should_forward = false;
629                                 }
630                         },
631                         8 => {
632                                 for payment in payments_received.drain(..) {
633                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
634                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
635                                         // fulfill this HTLC, but if they are, we can just take the first byte and
636                                         // place that anywhere in our preimage.
637                                         if &payment.0[1..] != &[0; 31] {
638                                                 channelmanager.fail_htlc_backwards(&payment);
639                                         } else {
640                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
641                                                 payment_preimage.0[0] = payment.0[0];
642                                                 channelmanager.claim_funds(payment_preimage);
643                                         }
644                                 }
645                         },
646                         16 => {
647                                 let payment_preimage = PaymentPreimage(keys_manager.get_secure_random_bytes());
648                                 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).to_byte_array());
649                                 // Note that this may fail - our hashes may collide and we'll end up trying to
650                                 // double-register the same payment_hash.
651                                 let _ = channelmanager.create_inbound_payment_for_hash(payment_hash, None, 1, None);
652                         },
653                         9 => {
654                                 for payment in payments_received.drain(..) {
655                                         channelmanager.fail_htlc_backwards(&payment);
656                                 }
657                         },
658                         10 => {
659                                 let mut tx = Transaction { version: Version(0), lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() };
660                                 let mut channels = Vec::new();
661                                 for funding_generation in pending_funding_generation.drain(..) {
662                                         let txout = TxOut {
663                                                 value: Amount::from_sat(funding_generation.2), script_pubkey: funding_generation.3,
664                                         };
665                                         if !tx.output.contains(&txout) {
666                                                 tx.output.push(txout);
667                                                 channels.push((funding_generation.0, funding_generation.1));
668                                         }
669                                 }
670                                 // Once we switch to V2 channel opens we should be able to drop this entirely as
671                                 // channel_ids no longer change when we set the funding tx.
672                                 'search_loop: loop {
673                                         if tx.version.0 > 0xff {
674                                                 break;
675                                         }
676                                         let funding_txid = tx.txid();
677                                         if loss_detector.txids_confirmed.get(&funding_txid).is_none() {
678                                                 let outpoint = OutPoint { txid: funding_txid, index: 0 };
679                                                 for chan in channelmanager.list_channels() {
680                                                         if chan.channel_id == ChannelId::v1_from_funding_outpoint(outpoint) {
681                                                                 tx.version = Version(tx.version.0 + 1);
682                                                                 continue 'search_loop;
683                                                         }
684                                                 }
685                                                 break;
686                                         }
687                                         tx.version = Version(tx.version.0 + 1);
688                                 }
689                                 if tx.version.0 <= 0xff && !channels.is_empty() {
690                                         let chans = channels.iter().map(|(a, b)| (a, b)).collect::<Vec<_>>();
691                                         if let Err(e) = channelmanager.batch_funding_transaction_generated(&chans, tx.clone()) {
692                                                 // It's possible the channel has been closed in the mean time, but any other
693                                                 // failure may be a bug.
694                                                 if let APIError::ChannelUnavailable { .. } = e { } else { panic!(); }
695                                         }
696                                         let funding_txid = tx.txid();
697                                         for idx in 0..tx.output.len() {
698                                                 let outpoint = OutPoint { txid: funding_txid, index: idx as u16 };
699                                                 pending_funding_signatures.insert(outpoint, tx.clone());
700                                         }
701                                 }
702                         },
703                         11 => {
704                                 let mut txn = broadcast.txn_broadcasted.lock().unwrap().split_off(0);
705                                 if !txn.is_empty() {
706                                         loss_detector.connect_block(&txn[..]);
707                                         for _ in 2..100 {
708                                                 loss_detector.connect_block(&[]);
709                                         }
710                                 }
711                                 for tx in txn.drain(..) {
712                                         loss_detector.funding_txn.push(tx);
713                                 }
714                         },
715                         12 => {
716                                 let txlen = u16::from_be_bytes(get_bytes!(2));
717                                 if txlen == 0 {
718                                         loss_detector.connect_block(&[]);
719                                 } else {
720                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
721                                         if let Ok(tx) = txres {
722                                                 let mut output_val = Amount::ZERO;
723                                                 for out in tx.output.iter() {
724                                                         if out.value > Amount::MAX_MONEY { return; }
725                                                         output_val += out.value;
726                                                         if output_val > Amount::MAX_MONEY { return; }
727                                                 }
728                                                 loss_detector.connect_block(&[tx]);
729                                         } else {
730                                                 return;
731                                         }
732                                 }
733                         },
734                         13 => {
735                                 loss_detector.disconnect_block();
736                         },
737                         14 => {
738                                 let mut channels = channelmanager.list_channels();
739                                 let channel_id = get_slice!(1)[0] as usize;
740                                 let error_message = "Channel force-closed";
741                                 if channel_id >= channels.len() { return; }
742                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
743                                 channelmanager.force_close_broadcasting_latest_txn(&channels[channel_id].channel_id, &channels[channel_id].counterparty.node_id, error_message.to_string()).unwrap();
744                         },
745                         // 15, 16, 17, 18 is above
746                         19 => {
747                                 let mut list = loss_detector.handler.list_peers();
748                                 list.sort_by_key(|v| v.counterparty_node_id);
749                                 if let Some(peer_details) = list.get(0) {
750                                         loss_detector.handler.disconnect_by_node_id(peer_details.counterparty_node_id);
751                                 }
752                         },
753                         20 => loss_detector.handler.disconnect_all_peers(),
754                         21 => loss_detector.handler.timer_tick_occurred(),
755                         22 =>
756                                 loss_detector.handler.broadcast_node_announcement([42; 3], [43; 32], Vec::new()),
757                         32 => channelmanager.timer_tick_occurred(),
758                         33 => {
759                                 for id in intercepted_htlcs.drain(..) {
760                                         channelmanager.fail_intercepted_htlc(id).unwrap();
761                                 }
762                         }
763                         34 => {
764                                 let amt = u64::from_be_bytes(get_bytes!(8));
765                                 let chans = channelmanager.list_channels();
766                                 for id in intercepted_htlcs.drain(..) {
767                                         if chans.is_empty() {
768                                                 channelmanager.fail_intercepted_htlc(id).unwrap();
769                                         } else {
770                                                 let chan = &chans[amt as usize % chans.len()];
771                                                 channelmanager.forward_intercepted_htlc(id, &chan.channel_id, chan.counterparty.node_id, amt).unwrap();
772                                         }
773                                 }
774                         }
775                         35 => {
776                                 let config: ChannelConfig =
777                                         if let Ok(c) = Readable::read(&mut &*input) { c } else { return; };
778                                 let chans = channelmanager.list_channels();
779                                 if let Some(chan) = chans.get(0) {
780                                         let _ = channelmanager.update_channel_config(
781                                                 &chan.counterparty.node_id, &[chan.channel_id], &config
782                                         );
783                                 }
784                         }
785                         _ => return,
786                 }
787                 loss_detector.handler.process_events();
788                 for event in loss_detector.manager.get_and_clear_pending_events() {
789                         match event {
790                                 Event::FundingGenerationReady { temporary_channel_id, counterparty_node_id, channel_value_satoshis, output_script, .. } => {
791                                         pending_funding_generation.push((temporary_channel_id, counterparty_node_id, channel_value_satoshis, output_script));
792                                 },
793                                 Event::PaymentClaimable { payment_hash, .. } => {
794                                         //TODO: enhance by fetching random amounts from fuzz input?
795                                         payments_received.push(payment_hash);
796                                 },
797                                 Event::PendingHTLCsForwardable {..} => {
798                                         should_forward = true;
799                                 },
800                                 Event::HTLCIntercepted { intercept_id, .. } => {
801                                         if !intercepted_htlcs.contains(&intercept_id) {
802                                                 intercepted_htlcs.push(intercept_id);
803                                         }
804                                 },
805                                 _ => {},
806                         }
807                 }
808         }
809 }
810
811 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
812         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
813         do_test(data, &logger);
814 }
815
816 #[no_mangle]
817 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
818         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
819         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
820 }
821
822 #[cfg(test)]
823 mod tests {
824         use bitcoin::hashes::hex::FromHex;
825         use lightning::util::logger::{Logger, Record};
826         use std::collections::HashMap;
827         use std::sync::{Arc, Mutex};
828
829         struct TrackingLogger {
830                 /// (module, message) -> count
831                 pub lines: Mutex<HashMap<(String, String), usize>>,
832         }
833         impl Logger for TrackingLogger {
834                 fn log(&self, record: Record) {
835                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
836                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
837                 }
838         }
839
840         fn ext_from_hex(hex_with_spaces: &str, out: &mut Vec<u8>) {
841                 for hex in hex_with_spaces.split(" ") {
842                         out.append(&mut <Vec<u8>>::from_hex(hex).unwrap());
843                 }
844         }
845
846         #[test]
847         fn test_no_existing_test_breakage() {
848                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
849                 // changes (such as requesting feerate info in a new place), we run a pretty full
850                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
851                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
852                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
853
854                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
855                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
856                 // of the Lightning message
857                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
858                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
859
860                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
861
862                 let mut test = Vec::new();
863                 // our network key
864                 ext_from_hex("0100000000000000000000000000000000000000000000000000000000000000", &mut test);
865                 // config
866                 ext_from_hex("0000000000900000000000000000640001000000000001ffff0000000000000000ffffffffffffffffffffffffffffffff0000000000000000ffffffffffffffff000000ffffffff00ffff1a000400010000020400000000040200000a08ffffffffffffffff0001000000", &mut test);
867
868                 // new outbound connection with id 0
869                 ext_from_hex("00", &mut test);
870                 // peer's pubkey
871                 ext_from_hex("030000000000000000000000000000000000000000000000000000000000000002", &mut test);
872                 // inbound read from peer id 0 of len 50
873                 ext_from_hex("030032", &mut test);
874                 // noise act two (0||pubkey||mac)
875                 ext_from_hex("00 030000000000000000000000000000000000000000000000000000000000000002 03000000000000000000000000000000", &mut test);
876
877                 // inbound read from peer id 0 of len 18
878                 ext_from_hex("030012", &mut test);
879                 // message header indicating message length 16
880                 ext_from_hex("0010 03000000000000000000000000000000", &mut test);
881                 // inbound read from peer id 0 of len 32
882                 ext_from_hex("030020", &mut test);
883                 // init message (type 16) with static_remotekey required, no channel_type/anchors/taproot, and other bits optional and mac
884                 ext_from_hex("0010 00021aaa 0008aaa20aaa2a0a9aaa 03000000000000000000000000000000", &mut test);
885
886                 // inbound read from peer id 0 of len 18
887                 ext_from_hex("030012", &mut test);
888                 // message header indicating message length 327
889                 ext_from_hex("0147 03000000000000000000000000000000", &mut test);
890                 // inbound read from peer id 0 of len 254
891                 ext_from_hex("0300fe", &mut test);
892                 // beginning of open_channel message
893                 ext_from_hex("0020 6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000162 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004", &mut test);
894                 // inbound read from peer id 0 of len 89
895                 ext_from_hex("030059", &mut test);
896                 // rest of open_channel and mac
897                 ext_from_hex("030000000000000000000000000000000000000000000000000000000000000005 020900000000000000000000000000000000000000000000000000000000000000 01 0000 01021000 03000000000000000000000000000000", &mut test);
898
899                 // One feerate request returning min feerate, which our open_channel also uses (ingested by FuzzEstimator)
900                 ext_from_hex("00fd", &mut test);
901                 // client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
902
903                 // inbound read from peer id 0 of len 18
904                 ext_from_hex("030012", &mut test);
905                 // message header indicating message length 132
906                 ext_from_hex("0084 03000000000000000000000000000000", &mut test);
907                 // inbound read from peer id 0 of len 148
908                 ext_from_hex("030094", &mut test);
909                 // funding_created and mac
910                 ext_from_hex("0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 00000000000000000000000000000000000000000000000000000000000000210100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
911                 // client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
912
913                 // connect a block with one transaction of len 94
914                 ext_from_hex("0c005e", &mut test);
915                 // the funding transaction
916                 ext_from_hex("020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000", &mut test);
917                 // connect a block with no transactions, one per line
918                 ext_from_hex("0c0000", &mut test);
919                 ext_from_hex("0c0000", &mut test);
920                 ext_from_hex("0c0000", &mut test);
921                 ext_from_hex("0c0000", &mut test);
922                 ext_from_hex("0c0000", &mut test);
923                 ext_from_hex("0c0000", &mut test);
924                 ext_from_hex("0c0000", &mut test);
925                 ext_from_hex("0c0000", &mut test);
926                 ext_from_hex("0c0000", &mut test);
927                 ext_from_hex("0c0000", &mut test);
928                 ext_from_hex("0c0000", &mut test);
929                 ext_from_hex("0c0000", &mut test);
930                 // by now client should have sent a channel_ready (CHECK 3: SendChannelReady to 03000000 for chan 3d000000)
931
932                 // inbound read from peer id 0 of len 18
933                 ext_from_hex("030012", &mut test);
934                 // message header indicating message length 67
935                 ext_from_hex("0043 03000000000000000000000000000000", &mut test);
936                 // inbound read from peer id 0 of len 83
937                 ext_from_hex("030053", &mut test);
938                 // channel_ready and mac
939                 ext_from_hex("0024 3d00000000000000000000000000000000000000000000000000000000000000 020800000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
940
941                 // new inbound connection with id 1
942                 ext_from_hex("01", &mut test);
943                 // inbound read from peer id 1 of len 50
944                 ext_from_hex("030132", &mut test);
945                 // inbound noise act 1
946                 ext_from_hex("0003000000000000000000000000000000000000000000000000000000000000000703000000000000000000000000000000", &mut test);
947                 // inbound read from peer id 1 of len 66
948                 ext_from_hex("030142", &mut test);
949                 // inbound noise act 3
950                 ext_from_hex("000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000", &mut test);
951
952                 // inbound read from peer id 1 of len 18
953                 ext_from_hex("030112", &mut test);
954                 // message header indicating message length 16
955                 ext_from_hex("0010 01000000000000000000000000000000", &mut test);
956                 // inbound read from peer id 1 of len 32
957                 ext_from_hex("030120", &mut test);
958                 // init message (type 16) with static_remotekey required, no channel_type/anchors/taproot, and other bits optional and mac
959                 ext_from_hex("0010 00021aaa 0008aaa20aaa2a0a9aaa 01000000000000000000000000000000", &mut test);
960
961                 // create outbound channel to peer 1 for 50k sat
962                 ext_from_hex("05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8", &mut test);
963                 // One feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
964                 ext_from_hex("00fd", &mut test);
965
966                 // inbound read from peer id 1 of len 18
967                 ext_from_hex("030112", &mut test);
968                 // message header indicating message length 274
969                 ext_from_hex("0112 01000000000000000000000000000000", &mut test);
970                 // inbound read from peer id 1 of len 255
971                 ext_from_hex("0301ff", &mut test);
972                 // beginning of accept_channel
973                 ext_from_hex("0021 0000000000000000000000000000000000000000000000000000000000000e05 0000000000000162 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 02660000000000000000000000000000", &mut test);
974                 // inbound read from peer id 1 of len 35
975                 ext_from_hex("030123", &mut test);
976                 // rest of accept_channel and mac
977                 ext_from_hex("0000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
978
979                 // create the funding transaction (client should send funding_created now)
980                 ext_from_hex("0a", &mut test);
981                 // Two feerate requests to check the dust exposure on the initial commitment tx
982                 ext_from_hex("00fd00fd", &mut test);
983
984                 // inbound read from peer id 1 of len 18
985                 ext_from_hex("030112", &mut test);
986                 // message header indicating message length 98
987                 ext_from_hex("0062 01000000000000000000000000000000", &mut test);
988                 // inbound read from peer id 1 of len 114
989                 ext_from_hex("030172", &mut test);
990                 // funding_signed message and mac
991                 ext_from_hex("0023 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000007c0001000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
992
993                 // broadcast funding transaction
994                 ext_from_hex("0b", &mut test);
995                 // by now client should have sent a channel_ready (CHECK 4: SendChannelReady to 03020000 for chan 3f000000)
996
997                 // inbound read from peer id 1 of len 18
998                 ext_from_hex("030112", &mut test);
999                 // message header indicating message length 67
1000                 ext_from_hex("0043 01000000000000000000000000000000", &mut test);
1001                 // inbound read from peer id 1 of len 83
1002                 ext_from_hex("030153", &mut test);
1003                 // channel_ready and mac
1004                 ext_from_hex("0024 3a00000000000000000000000000000000000000000000000000000000000000 026700000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1005
1006                 // inbound read from peer id 0 of len 18
1007                 ext_from_hex("030012", &mut test);
1008                 // message header indicating message length 1452
1009                 ext_from_hex("05ac 03000000000000000000000000000000", &mut test);
1010                 // inbound read from peer id 0 of len 255
1011                 ext_from_hex("0300ff", &mut test);
1012                 // beginning of update_add_htlc from 0 to 1 via client
1013                 ext_from_hex("0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 11 020203e8 0401a0 060800000e0000010000 0a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1014                 // inbound read from peer id 0 of len 255
1015                 ext_from_hex("0300ff", &mut test);
1016                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1017                 // inbound read from peer id 0 of len 255
1018                 ext_from_hex("0300ff", &mut test);
1019                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1020                 // inbound read from peer id 0 of len 255
1021                 ext_from_hex("0300ff", &mut test);
1022                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1023                 // inbound read from peer id 0 of len 255
1024                 ext_from_hex("0300ff", &mut test);
1025                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1026                 // inbound read from peer id 0 of len 193
1027                 ext_from_hex("0300c1", &mut test);
1028                 // end of update_add_htlc from 0 to 1 via client and mac
1029                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ab00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1030
1031                 // Two feerate requests to check dust exposure
1032                 ext_from_hex("00fd00fd", &mut test);
1033
1034                 // inbound read from peer id 0 of len 18
1035                 ext_from_hex("030012", &mut test);
1036                 // message header indicating message length 100
1037                 ext_from_hex("0064 03000000000000000000000000000000", &mut test);
1038                 // inbound read from peer id 0 of len 116
1039                 ext_from_hex("030074", &mut test);
1040                 // commitment_signed and mac
1041                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000300100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000", &mut test);
1042                 // client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
1043
1044                 // inbound read from peer id 0 of len 18
1045                 ext_from_hex("030012", &mut test);
1046                 // message header indicating message length 99
1047                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1048                 // inbound read from peer id 0 of len 115
1049                 ext_from_hex("030073", &mut test);
1050                 // revoke_and_ack and mac
1051                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0900000000000000000000000000000000000000000000000000000000000000 020b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1052
1053                 // process the now-pending HTLC forward
1054                 ext_from_hex("07", &mut test);
1055                 // Two feerate requests to check dust exposure
1056                 ext_from_hex("00fd00fd", &mut test);
1057                 // client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: UpdateHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
1058
1059                 // we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
1060                 // inbound read from peer id 1 of len 18
1061                 ext_from_hex("030112", &mut test);
1062                 // message header indicating message length 100
1063                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1064                 // inbound read from peer id 1 of len 116
1065                 ext_from_hex("030174", &mut test);
1066                 // commitment_signed and mac
1067                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000006a0001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1068                 //
1069                 // inbound read from peer id 1 of len 18
1070                 ext_from_hex("030112", &mut test);
1071                 // message header indicating message length 99
1072                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1073                 // inbound read from peer id 1 of len 115
1074                 ext_from_hex("030173", &mut test);
1075                 // revoke_and_ack and mac
1076                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6600000000000000000000000000000000000000000000000000000000000000 026400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1077                 //
1078                 // inbound read from peer id 1 of len 18
1079                 ext_from_hex("030112", &mut test);
1080                 // message header indicating message length 74
1081                 ext_from_hex("004a 01000000000000000000000000000000", &mut test);
1082                 // inbound read from peer id 1 of len 90
1083                 ext_from_hex("03015a", &mut test);
1084                 // update_fulfill_htlc and mac
1085                 ext_from_hex("0082 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000", &mut test);
1086                 // client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
1087
1088                 // inbound read from peer id 1 of len 18
1089                 ext_from_hex("030112", &mut test);
1090                 // message header indicating message length 100
1091                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1092                 // inbound read from peer id 1 of len 116
1093                 ext_from_hex("030174", &mut test);
1094                 // commitment_signed and mac
1095                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000100001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1096
1097                 // inbound read from peer id 1 of len 18
1098                 ext_from_hex("030112", &mut test);
1099                 // message header indicating message length 99
1100                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1101                 // inbound read from peer id 1 of len 115
1102                 ext_from_hex("030173", &mut test);
1103                 // revoke_and_ack and mac
1104                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6700000000000000000000000000000000000000000000000000000000000000 026500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1105
1106                 // before responding to the commitment_signed generated above, send a new HTLC
1107                 // inbound read from peer id 0 of len 18
1108                 ext_from_hex("030012", &mut test);
1109                 // message header indicating message length 1452
1110                 ext_from_hex("05ac 03000000000000000000000000000000", &mut test);
1111                 // inbound read from peer id 0 of len 255
1112                 ext_from_hex("0300ff", &mut test);
1113                 // beginning of update_add_htlc from 0 to 1 via client
1114                 ext_from_hex("0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 11 020203e8 0401a0 060800000e0000010000 0a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1115                 // inbound read from peer id 0 of len 255
1116                 ext_from_hex("0300ff", &mut test);
1117                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1118                 // inbound read from peer id 0 of len 255
1119                 ext_from_hex("0300ff", &mut test);
1120                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1121                 // inbound read from peer id 0 of len 255
1122                 ext_from_hex("0300ff", &mut test);
1123                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1124                 // inbound read from peer id 0 of len 255
1125                 ext_from_hex("0300ff", &mut test);
1126                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1127                 // inbound read from peer id 0 of len 193
1128                 ext_from_hex("0300c1", &mut test);
1129                 // end of update_add_htlc from 0 to 1 via client and mac
1130                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ab00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1131
1132                 // Two feerate requests to check dust exposure
1133                 ext_from_hex("00fd00fd", &mut test);
1134
1135                 // now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
1136                 // inbound read from peer id 0 of len 18
1137                 ext_from_hex("030012", &mut test);
1138                 // message header indicating message length 99
1139                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1140                 // inbound read from peer id 0 of len 115
1141                 ext_from_hex("030073", &mut test);
1142                 // revoke_and_ack and mac
1143                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0800000000000000000000000000000000000000000000000000000000000000 020a00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1144                 // client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
1145
1146                 // inbound read from peer id 0 of len 18
1147                 ext_from_hex("030012", &mut test);
1148                 // message header indicating message length 100
1149                 ext_from_hex("0064 03000000000000000000000000000000", &mut test);
1150                 // inbound read from peer id 0 of len 116
1151                 ext_from_hex("030074", &mut test);
1152                 // commitment_signed and mac
1153                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000c30100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000", &mut test);
1154
1155                 // inbound read from peer id 0 of len 18
1156                 ext_from_hex("030012", &mut test);
1157                 // message header indicating message length 99
1158                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1159                 // inbound read from peer id 0 of len 115
1160                 ext_from_hex("030073", &mut test);
1161                 // revoke_and_ack and mac
1162                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0b00000000000000000000000000000000000000000000000000000000000000 020d00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1163
1164                 // process the now-pending HTLC forward
1165                 ext_from_hex("07", &mut test);
1166
1167                 // Two feerate requests to check dust exposure
1168                 ext_from_hex("00fd00fd", &mut test);
1169
1170                 // client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
1171                 // we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
1172
1173                 // inbound read from peer id 1 of len 18
1174                 ext_from_hex("030112", &mut test);
1175                 // message header indicating message length 100
1176                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1177                 // inbound read from peer id 1 of len 116
1178                 ext_from_hex("030174", &mut test);
1179                 // commitment_signed and mac
1180                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1181
1182                 // inbound read from peer id 1 of len 18
1183                 ext_from_hex("030112", &mut test);
1184                 // message header indicating message length 99
1185                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1186                 // inbound read from peer id 1 of len 115
1187                 ext_from_hex("030173", &mut test);
1188                 // revoke_and_ack and mac
1189                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6400000000000000000000000000000000000000000000000000000000000000 027000000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1190
1191                 // inbound read from peer id 1 of len 18
1192                 ext_from_hex("030112", &mut test);
1193                 // message header indicating message length 44
1194                 ext_from_hex("002c 01000000000000000000000000000000", &mut test);
1195                 // inbound read from peer id 1 of len 60
1196                 ext_from_hex("03013c", &mut test);
1197                 // update_fail_htlc and mac
1198                 ext_from_hex("0083 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000", &mut test);
1199
1200                 // inbound read from peer id 1 of len 18
1201                 ext_from_hex("030112", &mut test);
1202                 // message header indicating message length 100
1203                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1204                 // inbound read from peer id 1 of len 116
1205                 ext_from_hex("030174", &mut test);
1206                 // commitment_signed and mac
1207                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1208
1209                 // inbound read from peer id 1 of len 18
1210                 ext_from_hex("030112", &mut test);
1211                 // message header indicating message length 99
1212                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1213                 // inbound read from peer id 1 of len 115
1214                 ext_from_hex("030173", &mut test);
1215                 // revoke_and_ack and mac
1216                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6500000000000000000000000000000000000000000000000000000000000000 027100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1217
1218                 // process the now-pending HTLC forward
1219                 ext_from_hex("07", &mut test);
1220                 // client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
1221                 // now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
1222
1223                 // inbound read from peer id 0 of len 18
1224                 ext_from_hex("030012", &mut test);
1225                 // message header indicating message length 99
1226                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1227                 // inbound read from peer id 0 of len 115
1228                 ext_from_hex("030073", &mut test);
1229                 // revoke_and_ack and mac
1230                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0a00000000000000000000000000000000000000000000000000000000000000 020c00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1231
1232                 // inbound read from peer id 0 of len 18
1233                 ext_from_hex("030012", &mut test);
1234                 // message header indicating message length 100
1235                 ext_from_hex("0064 03000000000000000000000000000000", &mut test);
1236                 // inbound read from peer id 0 of len 116
1237                 ext_from_hex("030074", &mut test);
1238                 // commitment_signed and mac
1239                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000320100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000", &mut test);
1240                 // client should now respond with revoke_and_ack (CHECK 5 duplicate)
1241
1242                 // inbound read from peer id 0 of len 18
1243                 ext_from_hex("030012", &mut test);
1244                 // message header indicating message length 1452
1245                 ext_from_hex("05ac 03000000000000000000000000000000", &mut test);
1246                 // inbound read from peer id 0 of len 255
1247                 ext_from_hex("0300ff", &mut test);
1248                 // beginning of update_add_htlc from 0 to 1 via client
1249                 ext_from_hex("0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 12 02030927c0 0401a0 060800000e0000010000 0a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1250                 // inbound read from peer id 0 of len 255
1251                 ext_from_hex("0300ff", &mut test);
1252                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1253                 // inbound read from peer id 0 of len 255
1254                 ext_from_hex("0300ff", &mut test);
1255                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1256                 // inbound read from peer id 0 of len 255
1257                 ext_from_hex("0300ff", &mut test);
1258                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1259                 // inbound read from peer id 0 of len 255
1260                 ext_from_hex("0300ff", &mut test);
1261                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1262                 // inbound read from peer id 0 of len 193
1263                 ext_from_hex("0300c1", &mut test);
1264                 // end of update_add_htlc from 0 to 1 via client and mac
1265                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 5300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1266
1267                 // Two feerate requests to check dust exposure
1268                 ext_from_hex("00fd00fd", &mut test);
1269
1270                 // inbound read from peer id 0 of len 18
1271                 ext_from_hex("030012", &mut test);
1272                 // message header indicating message length 164
1273                 ext_from_hex("00a4 03000000000000000000000000000000", &mut test);
1274                 // inbound read from peer id 0 of len 180
1275                 ext_from_hex("0300b4", &mut test);
1276                 // commitment_signed and mac
1277                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000750100000000000000000000000000000000000000000000000000000000000000 0001 00000000000000000000000000000000000000000000000000000000000000670500000000000000000000000000000000000000000000000000000000000006 03000000000000000000000000000000", &mut test);
1278                 // client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
1279
1280                 // inbound read from peer id 0 of len 18
1281                 ext_from_hex("030012", &mut test);
1282                 // message header indicating message length 99
1283                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1284                 // inbound read from peer id 0 of len 115
1285                 ext_from_hex("030073", &mut test);
1286                 // revoke_and_ack and mac
1287                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0d00000000000000000000000000000000000000000000000000000000000000 020f00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1288
1289                 // process the now-pending HTLC forward
1290                 ext_from_hex("07", &mut test);
1291                 // Two feerate requests to check dust exposure
1292                 ext_from_hex("00fd00fd", &mut test);
1293                 // client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
1294
1295                 // connect a block with one transaction of len 125
1296                 ext_from_hex("0c007d", &mut test);
1297                 // the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
1298                 ext_from_hex("02000000013a000000000000000000000000000000000000000000000000000000000000000000000000000000800258020000000000002200204b0000000000000000000000000000000000000000000000000000000000000014c0000000000000160014280000000000000000000000000000000000000005000020", &mut test);
1299                 //
1300                 // connect a block with one transaction of len 94
1301                 ext_from_hex("0c005e", &mut test);
1302                 // the HTLC timeout transaction
1303                 ext_from_hex("0200000001730000000000000000000000000000000000000000000000000000000000000000000000000000000001a701000000000000220020b20000000000000000000000000000000000000000000000000000000000000000000000", &mut test);
1304                 // connect a block with no transactions
1305                 ext_from_hex("0c0000", &mut test);
1306                 // connect a block with no transactions
1307                 ext_from_hex("0c0000", &mut test);
1308                 // connect a block with no transactions
1309                 ext_from_hex("0c0000", &mut test);
1310                 // connect a block with no transactions
1311                 ext_from_hex("0c0000", &mut test);
1312                 // connect a block with no transactions
1313                 ext_from_hex("0c0000", &mut test);
1314
1315                 // process the now-pending HTLC forward
1316                 ext_from_hex("07", &mut test);
1317                 // client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
1318
1319                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
1320                 super::do_test(&test, &(Arc::clone(&logger) as Arc<dyn Logger>));
1321
1322                 let log_entries = logger.lines.lock().unwrap();
1323                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendAcceptChannel event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679".to_string())), Some(&1)); // 1
1324                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingSigned event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 2
1325                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendChannelReady event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 3
1326                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendChannelReady event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 for channel 3a00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 4
1327                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendRevokeAndACK event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&4)); // 5
1328                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 with 0 adds, 0 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 6
1329                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 with 1 adds, 0 fulfills, 0 fails for channel 3a00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 7
1330                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 with 0 adds, 1 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 8
1331                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 with 0 adds, 0 fulfills, 1 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&2)); // 9
1332                 assert_eq!(log_entries.get(&("lightning::chain::channelmonitor".to_string(), "Input spending counterparty commitment tx (0000000000000000000000000000000000000000000000000000000000000073:0) in 0000000000000000000000000000000000000000000000000000000000000067 resolves outbound HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 with timeout".to_string())), Some(&1)); // 10
1333         }
1334
1335         #[test]
1336         fn test_gossip_exchange_breakage() {
1337                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
1338                 // changes (such as requesting feerate info in a new place), we exchange some gossip
1339                 // messages. Obviously this is pretty finicky, so this should be updated pretty liberally,
1340                 // but at least we'll know when changes occur.
1341                 // This test serves as a pretty good full_stack_target seed.
1342
1343                 // What each byte represents is broken down below, and then everything is concatenated into
1344                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
1345
1346                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
1347                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
1348                 // of the Lightning message
1349                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
1350                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
1351
1352                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
1353
1354                 let mut test = Vec::new();
1355
1356                 // our network key
1357                 ext_from_hex("0100000000000000000000000000000000000000000000000000000000000000", &mut test);
1358                 // config
1359                 ext_from_hex("0000000000900000000000000000640001000000000001ffff0000000000000000ffffffffffffffffffffffffffffffff0000000000000000ffffffffffffffff000000ffffffff00ffff1a000400010000020400000000040200000a08ffffffffffffffff0001000000", &mut test);
1360
1361                 // new outbound connection with id 0
1362                 ext_from_hex("00", &mut test);
1363                 // peer's pubkey
1364                 ext_from_hex("030000000000000000000000000000000000000000000000000000000000000002", &mut test);
1365                 // inbound read from peer id 0 of len 50
1366                 ext_from_hex("030032", &mut test);
1367                 // noise act two (0||pubkey||mac)
1368                 ext_from_hex("00 030000000000000000000000000000000000000000000000000000000000000002 03000000000000000000000000000000", &mut test);
1369
1370                 // inbound read from peer id 0 of len 18
1371                 ext_from_hex("030012", &mut test);
1372                 // message header indicating message length 16
1373                 ext_from_hex("0010 03000000000000000000000000000000", &mut test);
1374                 // inbound read from peer id 0 of len 32
1375                 ext_from_hex("030020", &mut test);
1376                 // init message (type 16) with static_remotekey required, no channel_type/anchors/taproot, and other bits optional and mac
1377                 ext_from_hex("0010 00021aaa 0008aaa20aaa2a0a9aaa 03000000000000000000000000000000", &mut test);
1378
1379                 // new inbound connection with id 1
1380                 ext_from_hex("01", &mut test);
1381                 // inbound read from peer id 1 of len 50
1382                 ext_from_hex("030132", &mut test);
1383                 // inbound noise act 1
1384                 ext_from_hex("0003000000000000000000000000000000000000000000000000000000000000000703000000000000000000000000000000", &mut test);
1385                 // inbound read from peer id 1 of len 66
1386                 ext_from_hex("030142", &mut test);
1387                 // inbound noise act 3
1388                 ext_from_hex("000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000", &mut test);
1389
1390                 // inbound read from peer id 1 of len 18
1391                 ext_from_hex("030112", &mut test);
1392                 // message header indicating message length 16
1393                 ext_from_hex("0010 01000000000000000000000000000000", &mut test);
1394                 // inbound read from peer id 1 of len 32
1395                 ext_from_hex("030120", &mut test);
1396                 // init message (type 16) with static_remotekey required, no channel_type/anchors/taproot, and other bits optional and mac
1397                 ext_from_hex("0010 00021aaa 0008aaa20aaa2a0a9aaa 01000000000000000000000000000000", &mut test);
1398
1399                 // inbound read from peer id 0 of len 18
1400                 ext_from_hex("030012", &mut test);
1401                 // message header indicating message length 432
1402                 ext_from_hex("01b0 03000000000000000000000000000000", &mut test);
1403                 // inbound read from peer id 0 of len 255
1404                 ext_from_hex("0300ff", &mut test);
1405                 // First part of channel_announcement (type 256)
1406                 ext_from_hex("0100 00000000000000000000000000000000000000000000000000000000000000b20303030303030303030303030303030303030303030303030303030303030303 00000000000000000000000000000000000000000000000000000000000000b20202020202020202020202020202020202020202020202020202020202020202 00000000000000000000000000000000000000000000000000000000000000b20303030303030303030303030303030303030303030303030303030303030303 00000000000000000000000000000000000000000000000000000000000000b20202020202020202020202020202020202020202020202020202020202", &mut test);
1407                 // inbound read from peer id 0 of len 193
1408                 ext_from_hex("0300c1", &mut test);
1409                 // Last part of channel_announcement and mac
1410                 ext_from_hex("020202 00006fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000000000000000002a030303030303030303030303030303030303030303030303030303030303030303020202020202020202020202020202020202020202020202020202020202020202030303030303030303030303030303030303030303030303030303030303030303020202020202020202020202020202020202020202020202020202020202020202 03000000000000000000000000000000", &mut test);
1411
1412                 // inbound read from peer id 0 of len 18
1413                 ext_from_hex("030012", &mut test);
1414                 // message header indicating message length 138
1415                 ext_from_hex("008a 03000000000000000000000000000000", &mut test);
1416                 // inbound read from peer id 0 of len 154
1417                 ext_from_hex("03009a", &mut test);
1418                 // channel_update (type 258) and mac
1419                 ext_from_hex("0102 00000000000000000000000000000000000000000000000000000000000000a60303030303030303030303030303030303030303030303030303030303030303 6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000 000000000000002a0000002c01000028000000000000000000000000000000000000000005f5e100 03000000000000000000000000000000", &mut test);
1420
1421                 // inbound read from peer id 0 of len 18
1422                 ext_from_hex("030012", &mut test);
1423                 // message header indicating message length 142
1424                 ext_from_hex("008e 03000000000000000000000000000000", &mut test);
1425                 // inbound read from peer id 0 of len 158
1426                 ext_from_hex("03009e", &mut test);
1427                 // node_announcement (type 257) and mac
1428                 ext_from_hex("0101 00000000000000000000000000000000000000000000000000000000000000280303030303030303030303030303030303030303030303030303030303030303 00000000002b03030303030303030303030303030303030303030303030303030303030303030300000000000000000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1429
1430                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
1431                 super::do_test(&test, &(Arc::clone(&logger) as Arc<dyn Logger>));
1432
1433                 let log_entries = logger.lines.lock().unwrap();
1434                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Sending message to all peers except Some(PublicKey(0000000000000000000000000000000000000000000000000000000000000002ff00000000000000000000000000000000000000000000000000000000000002)) or the announced channel's counterparties: ChannelAnnouncement { node_signature_1: 3026020200b202200303030303030303030303030303030303030303030303030303030303030303, node_signature_2: 3026020200b202200202020202020202020202020202020202020202020202020202020202020202, bitcoin_signature_1: 3026020200b202200303030303030303030303030303030303030303030303030303030303030303, bitcoin_signature_2: 3026020200b202200202020202020202020202020202020202020202020202020202020202020202, contents: UnsignedChannelAnnouncement { features: [], chain_hash: 6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000, short_channel_id: 42, node_id_1: NodeId(030303030303030303030303030303030303030303030303030303030303030303), node_id_2: NodeId(020202020202020202020202020202020202020202020202020202020202020202), bitcoin_key_1: NodeId(030303030303030303030303030303030303030303030303030303030303030303), bitcoin_key_2: NodeId(020202020202020202020202020202020202020202020202020202020202020202), excess_data: [] } }".to_string())), Some(&1));
1435                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Sending message to all peers except Some(PublicKey(0000000000000000000000000000000000000000000000000000000000000002ff00000000000000000000000000000000000000000000000000000000000002)): ChannelUpdate { signature: 3026020200a602200303030303030303030303030303030303030303030303030303030303030303, contents: UnsignedChannelUpdate { chain_hash: 6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000, short_channel_id: 42, timestamp: 44, flags: 0, cltv_expiry_delta: 40, htlc_minimum_msat: 0, htlc_maximum_msat: 100000000, fee_base_msat: 0, fee_proportional_millionths: 0, excess_data: [] } }".to_string())), Some(&1));
1436                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Sending message to all peers except Some(PublicKey(0000000000000000000000000000000000000000000000000000000000000002ff00000000000000000000000000000000000000000000000000000000000002)) or the announced node: NodeAnnouncement { signature: 302502012802200303030303030303030303030303030303030303030303030303030303030303, contents: UnsignedNodeAnnouncement { features: [], timestamp: 43, node_id: NodeId(030303030303030303030303030303030303030303030303030303030303030303), rgb: [0, 0, 0], alias: NodeAlias([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, 0, 0]), addresses: [], excess_address_data: [], excess_data: [] } }".to_string())), Some(&1));
1437         }
1438 }