_ Git - rust-lightning/blob - 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::blockdata::constants::genesis_block;
  17 use bitcoin::blockdata::transaction::{Transaction, TxOut};
  18 use bitcoin::blockdata::script::{Builder, ScriptBuf};
  19 use bitcoin::blockdata::opcodes;
  20 use bitcoin::blockdata::locktime::absolute::LockTime;
  21 use bitcoin::consensus::encode::deserialize;
  22 use bitcoin::network::constants::Network;
  23
  24 use bitcoin::hashes::hex::FromHex;
  25 use bitcoin::hashes::Hash as _;
  26 use bitcoin::hashes::sha256::Hash as Sha256;
  27 use bitcoin::hashes::sha256d::Hash as Sha256dHash;
  28 use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
  29
  30 use lightning::blinded_path::BlindedPath;
  31 use lightning::blinded_path::payment::ReceiveTlvs;
  32 use lightning::chain;
  33 use lightning::chain::{BestBlock, ChannelMonitorUpdateStatus, Confirm, Listen};
  34 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
  35 use lightning::chain::chainmonitor;
  36 use lightning::chain::transaction::OutPoint;
  37 use lightning::sign::{InMemorySigner, Recipient, KeyMaterial, EntropySource, NodeSigner, SignerProvider};
  38 use lightning::events::Event;
  39 use lightning::ln::{ChannelId, PaymentHash, PaymentPreimage, PaymentSecret};
  40 use lightning::ln::channelmanager::{ChainParameters, ChannelDetails, ChannelManager, PaymentId, RecipientOnionFields, Retry, InterceptId};
  41 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor,IgnoringMessageHandler};
  42 use lightning::ln::msgs::{self, DecodeError};
  43 use lightning::ln::script::ShutdownScript;
  44 use lightning::ln::functional_test_utils::*;
  45 use lightning::offers::invoice::{BlindedPayInfo, UnsignedBolt12Invoice};
  46 use lightning::offers::invoice_request::UnsignedInvoiceRequest;
  47 use lightning::onion_message::messenger::{Destination, MessageRouter, OnionMessagePath};
  48 use lightning::routing::gossip::{P2PGossipSync, NetworkGraph};
  49 use lightning::routing::utxo::UtxoLookup;
  50 use lightning::routing::router::{InFlightHtlcs, PaymentParameters, Route, RouteParameters, Router};
  51 use lightning::util::config::UserConfig;
  52 use lightning::util::errors::APIError;
  53 use lightning::util::test_channel_signer::{TestChannelSigner, EnforcementState};
  54 use lightning::util::logger::Logger;
  55 use lightning::util::ser::{Readable, ReadableArgs, Writeable};
  56
  57 use crate::utils::test_logger;
  58 use crate::utils::test_persister::TestPersister;
  59
  60 use bitcoin::secp256k1::{Message, PublicKey, SecretKey, Scalar, Secp256k1, self};
  61 use bitcoin::secp256k1::ecdh::SharedSecret;
  62 use bitcoin::secp256k1::ecdsa::{RecoverableSignature, Signature};
  63 use bitcoin::secp256k1::schnorr;
  64
  65 use std::cell::RefCell;
  66 use hashbrown::{HashMap, hash_map};
  67 use std::convert::TryInto;
  68 use std::cmp;
  69 use std::sync::{Arc, Mutex};
  70 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
  71 use bitcoin::bech32::u5;
  72
  73 #[inline]
  74 pub fn slice_to_be16(v: &[u8]) -> u16 {
  75         ((v[0] as u16) << 8*1) |
  76         ((v[1] as u16) << 8*0)
  77 }
  78
  79 #[inline]
  80 pub fn be16_to_array(u: u16) -> [u8; 2] {
  81         let mut v = [0; 2];
  82         v[0] = ((u >> 8*1) & 0xff) as u8;
  83         v[1] = ((u >> 8*0) & 0xff) as u8;
  84         v
  85 }
  86
  87 #[inline]
  88 pub fn slice_to_be24(v: &[u8]) -> u32 {
  89         ((v[0] as u32) << 8*2) |
  90         ((v[1] as u32) << 8*1) |
  91         ((v[2] as u32) << 8*0)
  92 }
  93
  94 struct InputData {
  95         data: Vec<u8>,
  96         read_pos: AtomicUsize,
  97 }
  98 impl InputData {
  99         fn get_slice(&self, len: usize) -> Option<&[u8]> {
 100                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
 101                 if self.data.len() < old_pos + len {
 102                         return None;
 103                 }
 104                 Some(&self.data[old_pos..old_pos + len])
 105         }
 106 }
 107
 108 struct FuzzEstimator {
 109         input: Arc<InputData>,
 110 }
 111 impl FeeEstimator for FuzzEstimator {
 112         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u32 {
 113                 //TODO: We should actually be testing at least much more than 64k...
 114                 match self.input.get_slice(2) {
 115                         Some(slice) => cmp::max(slice_to_be16(slice) as u32, 253),
 116                         None => 253
 117                 }
 118         }
 119 }
 120
 121 struct FuzzRouter {}
 122
 123 impl Router for FuzzRouter {
 124         fn find_route(
 125                 &self, _payer: &PublicKey, _params: &RouteParameters, _first_hops: Option<&[&ChannelDetails]>,
 126                 _inflight_htlcs: InFlightHtlcs
 127         ) -> Result<Route, msgs::LightningError> {
 128                 Err(msgs::LightningError {
 129                         err: String::from("Not implemented"),
 130                         action: msgs::ErrorAction::IgnoreError
 131                 })
 132         }
 133
 134         fn create_blinded_payment_paths<T: secp256k1::Signing + secp256k1::Verification>(
 135                 &self, _recipient: PublicKey, _first_hops: Vec<ChannelDetails>, _tlvs: ReceiveTlvs,
 136                 _amount_msats: u64, _secp_ctx: &Secp256k1<T>,
 137         ) -> Result<Vec<(BlindedPayInfo, BlindedPath)>, ()> {
 138                 unreachable!()
 139         }
 140 }
 141
 142 impl MessageRouter for FuzzRouter {
 143         fn find_path(
 144                 &self, _sender: PublicKey, _peers: Vec<PublicKey>, _destination: Destination
 145         ) -> Result<OnionMessagePath, ()> {
 146                 unreachable!()
 147         }
 148
 149         fn create_blinded_paths<T: secp256k1::Signing + secp256k1::Verification>(
 150                 &self, _recipient: PublicKey, _peers: Vec<PublicKey>, _secp_ctx: &Secp256k1<T>,
 151         ) -> Result<Vec<BlindedPath>, ()> {
 152                 unreachable!()
 153         }
 154 }
 155
 156 struct TestBroadcaster {
 157         txn_broadcasted: Mutex<Vec<Transaction>>,
 158 }
 159 impl BroadcasterInterface for TestBroadcaster {
 160         fn broadcast_transactions(&self, txs: &[&Transaction]) {
 161                 let owned_txs: Vec<Transaction> = txs.iter().map(|tx| (*tx).clone()).collect();
 162                 self.txn_broadcasted.lock().unwrap().extend(owned_txs);
 163         }
 164 }
 165
 166 #[derive(Clone)]
 167 struct Peer<'a> {
 168         id: u8,
 169         peers_connected: &'a RefCell<[bool; 256]>,
 170 }
 171 impl<'a> SocketDescriptor for Peer<'a> {
 172         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
 173                 data.len()
 174         }
 175         fn disconnect_socket(&mut self) {
 176                 assert!(self.peers_connected.borrow()[self.id as usize]);
 177                 self.peers_connected.borrow_mut()[self.id as usize] = false;
 178         }
 179 }
 180 impl<'a> PartialEq for Peer<'a> {
 181         fn eq(&self, other: &Self) -> bool {
 182                 self.id == other.id
 183         }
 184 }
 185 impl<'a> Eq for Peer<'a> {}
 186 impl<'a> std::hash::Hash for Peer<'a> {
 187         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
 188                 self.id.hash(h)
 189         }
 190 }
 191
 192 type ChannelMan<'a> = ChannelManager<
 193         Arc<chainmonitor::ChainMonitor<TestChannelSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 194         Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<KeyProvider>, Arc<KeyProvider>, Arc<FuzzEstimator>, &'a FuzzRouter, Arc<dyn Logger>>;
 195 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>>;
 196
 197 struct MoneyLossDetector<'a> {
 198         manager: Arc<ChannelMan<'a>>,
 199         monitor: Arc<chainmonitor::ChainMonitor<TestChannelSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 200         handler: PeerMan<'a>,
 201
 202         peers: &'a RefCell<[bool; 256]>,
 203         funding_txn: Vec<Transaction>,
 204         txids_confirmed: HashMap<Txid, usize>,
 205         header_hashes: Vec<(BlockHash, u32)>,
 206         height: usize,
 207         max_height: usize,
 208         blocks_connected: u32,
 209 }
 210 impl<'a> MoneyLossDetector<'a> {
 211         pub fn new(peers: &'a RefCell<[bool; 256]>,
 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>) -> Self {
 215                 MoneyLossDetector {
 216                         manager,
 217                         monitor,
 218                         handler,
 219
 220                         peers,
 221                         funding_txn: Vec::new(),
 222                         txids_confirmed: HashMap::new(),
 223                         header_hashes: vec![(genesis_block(Network::Bitcoin).block_hash(), 0)],
 224                         height: 0,
 225                         max_height: 0,
 226                         blocks_connected: 0,
 227                 }
 228         }
 229
 230         fn connect_block(&mut self, all_txn: &[Transaction]) {
 231                 let mut txdata = Vec::with_capacity(all_txn.len());
 232                 for (idx, tx) in all_txn.iter().enumerate() {
 233                         let txid = tx.txid();
 234                         match self.txids_confirmed.entry(txid) {
 235                                 hash_map::Entry::Vacant(e) => {
 236                                         e.insert(self.height);
 237                                         txdata.push((idx + 1, tx));
 238                                 },
 239                                 _ => {},
 240                         }
 241                 }
 242
 243                 self.blocks_connected += 1;
 244                 let header = create_dummy_header(self.header_hashes[self.height].0, self.blocks_connected);
 245                 self.height += 1;
 246                 self.manager.transactions_confirmed(&header, &txdata, self.height as u32);
 247                 self.manager.best_block_updated(&header, self.height as u32);
 248                 (*self.monitor).transactions_confirmed(&header, &txdata, self.height as u32);
 249                 (*self.monitor).best_block_updated(&header, self.height as u32);
 250                 if self.header_hashes.len() > self.height {
 251                         self.header_hashes[self.height] = (header.block_hash(), self.blocks_connected);
 252                 } else {
 253                         assert_eq!(self.header_hashes.len(), self.height);
 254                         self.header_hashes.push((header.block_hash(), self.blocks_connected));
 255                 }
 256                 self.max_height = cmp::max(self.height, self.max_height);
 257         }
 258
 259         fn disconnect_block(&mut self) {
 260                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 261                         let header = create_dummy_header(self.header_hashes[self.height - 1].0, self.header_hashes[self.height].1);
 262                         self.manager.block_disconnected(&header, self.height as u32);
 263                         self.monitor.block_disconnected(&header, self.height as u32);
 264                         self.height -= 1;
 265                         let removal_height = self.height;
 266                         self.txids_confirmed.retain(|_, height| {
 267                                 removal_height != *height
 268                         });
 269                 }
 270         }
 271 }
 272
 273 impl<'a> Drop for MoneyLossDetector<'a> {
 274         fn drop(&mut self) {
 275                 if !::std::thread::panicking() {
 276                         // Disconnect all peers
 277                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 278                                 if *peer {
 279                                         self.handler.socket_disconnected(&Peer{id: idx as u8, peers_connected: &self.peers});
 280                                 }
 281                         }
 282
 283                         // Force all channels onto the chain (and time out claim txn)
 284                         self.manager.force_close_all_channels_broadcasting_latest_txn();
 285                 }
 286         }
 287 }
 288
 289 struct KeyProvider {
 290         node_secret: SecretKey,
 291         inbound_payment_key: KeyMaterial,
 292         counter: AtomicU64,
 293         signer_state: RefCell<HashMap<u8, (bool, Arc<Mutex<EnforcementState>>)>>
 294 }
 295
 296 impl EntropySource for KeyProvider {
 297         fn get_secure_random_bytes(&self) -> [u8; 32] {
 298                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 299                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 300                         (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]
 301         }
 302 }
 303
 304 impl NodeSigner for KeyProvider {
 305         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
 306                 let node_secret = match recipient {
 307                         Recipient::Node => Ok(&self.node_secret),
 308                         Recipient::PhantomNode => Err(())
 309                 }?;
 310                 Ok(PublicKey::from_secret_key(&Secp256k1::signing_only(), node_secret))
 311         }
 312
 313         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&Scalar>) -> Result<SharedSecret, ()> {
 314                 let mut node_secret = match recipient {
 315                         Recipient::Node => Ok(self.node_secret.clone()),
 316                         Recipient::PhantomNode => Err(())
 317                 }?;
 318                 if let Some(tweak) = tweak {
 319                         node_secret = node_secret.mul_tweak(tweak).map_err(|_| ())?;
 320                 }
 321                 Ok(SharedSecret::new(other_key, &node_secret))
 322         }
 323
 324         fn get_inbound_payment_key_material(&self) -> KeyMaterial {
 325                 self.inbound_payment_key.clone()
 326         }
 327
 328         fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5], _recipient: Recipient) -> Result<RecoverableSignature, ()> {
 329                 unreachable!()
 330         }
 331
 332         fn sign_bolt12_invoice_request(
 333                 &self, _invoice_request: &UnsignedInvoiceRequest
 334         ) -> Result<schnorr::Signature, ()> {
 335                 unreachable!()
 336         }
 337
 338         fn sign_bolt12_invoice(
 339                 &self, _invoice: &UnsignedBolt12Invoice,
 340         ) -> Result<schnorr::Signature, ()> {
 341                 unreachable!()
 342         }
 343
 344         fn sign_gossip_message(&self, msg: lightning::ln::msgs::UnsignedGossipMessage) -> Result<Signature, ()> {
 345                 let msg_hash = Message::from_slice(&Sha256dHash::hash(&msg.encode()[..])[..]).map_err(|_| ())?;
 346                 let secp_ctx = Secp256k1::signing_only();
 347                 Ok(secp_ctx.sign_ecdsa(&msg_hash, &self.node_secret))
 348         }
 349 }
 350
 351 impl SignerProvider for KeyProvider {
 352         type EcdsaSigner = TestChannelSigner;
 353         #[cfg(taproot)]
 354         type TaprootSigner = TestChannelSigner;
 355
 356         fn generate_channel_keys_id(&self, inbound: bool, _channel_value_satoshis: u64, _user_channel_id: u128) -> [u8; 32] {
 357                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
 358                 self.signer_state.borrow_mut().insert(ctr, (inbound, Arc::new(Mutex::new(EnforcementState::new()))));
 359                 [ctr; 32]
 360         }
 361
 362         fn derive_channel_signer(&self, channel_value_satoshis: u64, channel_keys_id: [u8; 32]) -> Self::EcdsaSigner {
 363                 let secp_ctx = Secp256k1::signing_only();
 364                 let ctr = channel_keys_id[0];
 365                 let (inbound, state) = self.signer_state.borrow().get(&ctr).unwrap().clone();
 366                 TestChannelSigner::new_with_revoked(if inbound {
 367                         InMemorySigner::new(
 368                                 &secp_ctx,
 369                                 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(),
 370                                 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(),
 371                                 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(),
 372                                 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(),
 373                                 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(),
 374                                 [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],
 375                                 channel_value_satoshis,
 376                                 channel_keys_id,
 377                                 channel_keys_id,
 378                         )
 379                 } else {
 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, 7, 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, 8, 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, 9, 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, 10, 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, 11, 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, 12, ctr],
 388                                 channel_value_satoshis,
 389                                 channel_keys_id,
 390                                 channel_keys_id,
 391                         )
 392                 }, state, false)
 393         }
 394
 395         fn read_chan_signer(&self, mut data: &[u8]) -> Result<TestChannelSigner, DecodeError> {
 396                 let inner: InMemorySigner = ReadableArgs::read(&mut data, self)?;
 397                 let state = Arc::new(Mutex::new(EnforcementState::new()));
 398
 399                 Ok(TestChannelSigner::new_with_revoked(
 400                         inner,
 401                         state,
 402                         false
 403                 ))
 404         }
 405
 406         fn get_destination_script(&self, _channel_keys_id: [u8; 32]) -> Result<ScriptBuf, ()> {
 407                 let secp_ctx = Secp256k1::signing_only();
 408                 let channel_monitor_claim_key = SecretKey::from_slice(&<Vec<u8>>::from_hex("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 409                 let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 410                 Ok(Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(our_channel_monitor_claim_key_hash).into_script())
 411         }
 412
 413         fn get_shutdown_scriptpubkey(&self) -> Result<ShutdownScript, ()> {
 414                 let secp_ctx = Secp256k1::signing_only();
 415                 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();
 416                 let pubkey_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &secret_key).serialize());
 417                 Ok(ShutdownScript::new_p2wpkh(&pubkey_hash))
 418         }
 419 }
 420
 421 #[inline]
 422 pub fn do_test(mut data: &[u8], logger: &Arc<dyn Logger>) {
 423         if data.len() < 32 { return; }
 424
 425         let our_network_key = match SecretKey::from_slice(&data[..32]) {
 426                 Ok(key) => key,
 427                 Err(_) => return,
 428         };
 429         data = &data[32..];
 430
 431         let config: UserConfig = if let Ok(config) = Readable::read(&mut data) { config } else { return; };
 432
 433         let input = Arc::new(InputData {
 434                 data: data.to_vec(),
 435                 read_pos: AtomicUsize::new(0),
 436         });
 437         let fee_est = Arc::new(FuzzEstimator {
 438                 input: input.clone(),
 439         });
 440         let router = FuzzRouter {};
 441
 442         macro_rules! get_slice {
 443                 ($len: expr) => {
 444                         match input.get_slice($len as usize) {
 445                                 Some(slice) => slice,
 446                                 None => return,
 447                         }
 448                 }
 449         }
 450
 451         macro_rules! get_bytes {
 452                 ($len: expr) => { {
 453                         let mut res = [0; $len];
 454                         match input.get_slice($len as usize) {
 455                                 Some(slice) => res.copy_from_slice(slice),
 456                                 None => return,
 457                         }
 458                         res
 459                 } }
 460         }
 461
 462         macro_rules! get_pubkey {
 463                 () => {
 464                         match PublicKey::from_slice(get_slice!(33)) {
 465                                 Ok(key) => key,
 466                                 Err(_) => return,
 467                         }
 468                 }
 469         }
 470
 471
 472         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];
 473
 474         let broadcast = Arc::new(TestBroadcaster{ txn_broadcasted: Mutex::new(Vec::new()) });
 475         let monitor = Arc::new(chainmonitor::ChainMonitor::new(None, broadcast.clone(), Arc::clone(&logger), fee_est.clone(),
 476                 Arc::new(TestPersister { update_ret: Mutex::new(ChannelMonitorUpdateStatus::Completed) })));
 477
 478         let keys_manager = Arc::new(KeyProvider {
 479                 node_secret: our_network_key.clone(),
 480                 inbound_payment_key: KeyMaterial(inbound_payment_key.try_into().unwrap()),
 481                 counter: AtomicU64::new(0),
 482                 signer_state: RefCell::new(HashMap::new())
 483         });
 484         let network = Network::Bitcoin;
 485         let best_block_timestamp = genesis_block(network).header.time;
 486         let params = ChainParameters {
 487                 network,
 488                 best_block: BestBlock::from_network(network),
 489         };
 490         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));
 491         // Adding new calls to `EntropySource::get_secure_random_bytes` during startup can change all the
 492         // keys subsequently generated in this test. Rather than regenerating all the messages manually,
 493         // it's easier to just increment the counter here so the keys don't change.
 494         keys_manager.counter.fetch_sub(3, Ordering::AcqRel);
 495         let network_graph = Arc::new(NetworkGraph::new(network, Arc::clone(&logger)));
 496         let gossip_sync = Arc::new(P2PGossipSync::new(Arc::clone(&network_graph), None, Arc::clone(&logger)));
 497
 498         let peers = RefCell::new([false; 256]);
 499         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 500                 chan_handler: channelmanager.clone(),
 501                 route_handler: gossip_sync.clone(),
 502                 onion_message_handler: IgnoringMessageHandler {},
 503                 custom_message_handler: IgnoringMessageHandler {},
 504         }, 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()));
 505
 506         let mut should_forward = false;
 507         let mut payments_received: Vec<PaymentHash> = Vec::new();
 508         let mut intercepted_htlcs: Vec<InterceptId> = Vec::new();
 509         let mut payments_sent: u16 = 0;
 510         let mut pending_funding_generation: Vec<(ChannelId, PublicKey, u64, ScriptBuf)> = Vec::new();
 511         let mut pending_funding_signatures = HashMap::new();
 512
 513         loop {
 514                 match get_slice!(1)[0] {
 515                         0 => {
 516                                 let mut new_id = 0;
 517                                 for i in 1..256 {
 518                                         if !peers.borrow()[i-1] {
 519                                                 new_id = i;
 520                                                 break;
 521                                         }
 522                                 }
 523                                 if new_id == 0 { return; }
 524                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}, None).unwrap();
 525                                 peers.borrow_mut()[new_id - 1] = true;
 526                         },
 527                         1 => {
 528                                 let mut new_id = 0;
 529                                 for i in 1..256 {
 530                                         if !peers.borrow()[i-1] {
 531                                                 new_id = i;
 532                                                 break;
 533                                         }
 534                                 }
 535                                 if new_id == 0 { return; }
 536                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}, None).unwrap();
 537                                 peers.borrow_mut()[new_id - 1] = true;
 538                         },
 539                         2 => {
 540                                 let peer_id = get_slice!(1)[0];
 541                                 if !peers.borrow()[peer_id as usize] { return; }
 542                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
 543                                 peers.borrow_mut()[peer_id as usize] = false;
 544                         },
 545                         3 => {
 546                                 let peer_id = get_slice!(1)[0];
 547                                 if !peers.borrow()[peer_id as usize] { return; }
 548                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
 549                                         Ok(res) => assert!(!res),
 550                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 551                                 }
 552                         },
 553                         4 => {
 554                                 let final_value_msat = slice_to_be24(get_slice!(3)) as u64;
 555                                 let payment_params = PaymentParameters::from_node_id(get_pubkey!(), 42);
 556                                 let params = RouteParameters::from_payment_params_and_value(
 557                                         payment_params, final_value_msat);
 558                                 let mut payment_hash = PaymentHash([0; 32]);
 559                                 payment_hash.0[0..2].copy_from_slice(&be16_to_array(payments_sent));
 560                                 payment_hash.0 = Sha256::hash(&payment_hash.0[..]).to_byte_array();
 561                                 payments_sent += 1;
 562                                 let _ = channelmanager.send_payment(
 563                                         payment_hash, RecipientOnionFields::spontaneous_empty(),
 564                                         PaymentId(payment_hash.0), params, Retry::Attempts(2)
 565                                 );
 566                         },
 567                         15 => {
 568                                 let final_value_msat = slice_to_be24(get_slice!(3)) as u64;
 569                                 let payment_params = PaymentParameters::from_node_id(get_pubkey!(), 42);
 570                                 let params = RouteParameters::from_payment_params_and_value(
 571                                         payment_params, final_value_msat);
 572                                 let mut payment_hash = PaymentHash([0; 32]);
 573                                 payment_hash.0[0..2].copy_from_slice(&be16_to_array(payments_sent));
 574                                 payment_hash.0 = Sha256::hash(&payment_hash.0[..]).to_byte_array();
 575                                 payments_sent += 1;
 576                                 let mut payment_secret = PaymentSecret([0; 32]);
 577                                 payment_secret.0[0..2].copy_from_slice(&be16_to_array(payments_sent));
 578                                 payments_sent += 1;
 579                                 let _ = channelmanager.send_payment(
 580                                         payment_hash, RecipientOnionFields::secret_only(payment_secret),
 581                                         PaymentId(payment_hash.0), params, Retry::Attempts(2)
 582                                 );
 583                         },
 584                         17 => {
 585                                 let final_value_msat = slice_to_be24(get_slice!(3)) as u64;
 586                                 let payment_params = PaymentParameters::from_node_id(get_pubkey!(), 42);
 587                                 let params = RouteParameters::from_payment_params_and_value(
 588                                         payment_params, final_value_msat);
 589                                 let _ = channelmanager.send_preflight_probes(params, None);
 590                         },
 591                         18 => {
 592                                 let idx = u16::from_be_bytes(get_bytes!(2)) % cmp::max(payments_sent, 1);
 593                                 let mut payment_id = PaymentId([0; 32]);
 594                                 payment_id.0[0..2].copy_from_slice(&idx.to_be_bytes());
 595                                 channelmanager.abandon_payment(payment_id);
 596                         },
 597                         5 => {
 598                                 let peer_id = get_slice!(1)[0];
 599                                 if !peers.borrow()[peer_id as usize] { return; }
 600                                 let their_key = get_pubkey!();
 601                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 602                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 603                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None, None).is_err() { return; }
 604                         },
 605                         6 => {
 606                                 let mut channels = channelmanager.list_channels();
 607                                 let channel_id = get_slice!(1)[0] as usize;
 608                                 if channel_id >= channels.len() { return; }
 609                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 610                                 if channelmanager.close_channel(&channels[channel_id].channel_id, &channels[channel_id].counterparty.node_id).is_err() { return; }
 611                         },
 612                         7 => {
 613                                 if should_forward {
 614                                         channelmanager.process_pending_htlc_forwards();
 615                                         should_forward = false;
 616                                 }
 617                         },
 618                         8 => {
 619                                 for payment in payments_received.drain(..) {
 620                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 621                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 622                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 623                                         // place that anywhere in our preimage.
 624                                         if &payment.0[1..] != &[0; 31] {
 625                                                 channelmanager.fail_htlc_backwards(&payment);
 626                                         } else {
 627                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 628                                                 payment_preimage.0[0] = payment.0[0];
 629                                                 channelmanager.claim_funds(payment_preimage);
 630                                         }
 631                                 }
 632                         },
 633                         16 => {
 634                                 let payment_preimage = PaymentPreimage(keys_manager.get_secure_random_bytes());
 635                                 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).to_byte_array());
 636                                 // Note that this may fail - our hashes may collide and we'll end up trying to
 637                                 // double-register the same payment_hash.
 638                                 let _ = channelmanager.create_inbound_payment_for_hash(payment_hash, None, 1, None);
 639                         },
 640                         9 => {
 641                                 for payment in payments_received.drain(..) {
 642                                         channelmanager.fail_htlc_backwards(&payment);
 643                                 }
 644                         },
 645                         10 => {
 646                                 let mut tx = Transaction { version: 0, lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() };
 647                                 let mut channels = Vec::new();
 648                                 for funding_generation in pending_funding_generation.drain(..) {
 649                                         let txout = TxOut {
 650                                                 value: funding_generation.2, script_pubkey: funding_generation.3,
 651                                         };
 652                                         if !tx.output.contains(&txout) {
 653                                                 tx.output.push(txout);
 654                                                 channels.push((funding_generation.0, funding_generation.1));
 655                                         }
 656                                 }
 657                                 // Once we switch to V2 channel opens we should be able to drop this entirely as
 658                                 // channel_ids no longer change when we set the funding tx.
 659                                 'search_loop: loop {
 660                                         if tx.version > 0xff {
 661                                                 break;
 662                                         }
 663                                         let funding_txid = tx.txid();
 664                                         if loss_detector.txids_confirmed.get(&funding_txid).is_none() {
 665                                                 let outpoint = OutPoint { txid: funding_txid, index: 0 };
 666                                                 for chan in channelmanager.list_channels() {
 667                                                         if chan.channel_id == ChannelId::v1_from_funding_outpoint(outpoint) {
 668                                                                 tx.version += 1;
 669                                                                 continue 'search_loop;
 670                                                         }
 671                                                 }
 672                                                 break;
 673                                         }
 674                                         tx.version += 1;
 675                                 }
 676                                 if tx.version <= 0xff && !channels.is_empty() {
 677                                         let chans = channels.iter().map(|(a, b)| (a, b)).collect::<Vec<_>>();
 678                                         if let Err(e) = channelmanager.batch_funding_transaction_generated(&chans, tx.clone()) {
 679                                                 // It's possible the channel has been closed in the mean time, but any other
 680                                                 // failure may be a bug.
 681                                                 if let APIError::ChannelUnavailable { .. } = e { } else { panic!(); }
 682                                         }
 683                                         let funding_txid = tx.txid();
 684                                         for idx in 0..tx.output.len() {
 685                                                 let outpoint = OutPoint { txid: funding_txid, index: idx as u16 };
 686                                                 pending_funding_signatures.insert(outpoint, tx.clone());
 687                                         }
 688                                 }
 689                         },
 690                         11 => {
 691                                 let mut txn = broadcast.txn_broadcasted.lock().unwrap().split_off(0);
 692                                 if !txn.is_empty() {
 693                                         loss_detector.connect_block(&txn[..]);
 694                                         for _ in 2..100 {
 695                                                 loss_detector.connect_block(&[]);
 696                                         }
 697                                 }
 698                                 for tx in txn.drain(..) {
 699                                         loss_detector.funding_txn.push(tx);
 700                                 }
 701                         },
 702                         12 => {
 703                                 let txlen = u16::from_be_bytes(get_bytes!(2));
 704                                 if txlen == 0 {
 705                                         loss_detector.connect_block(&[]);
 706                                 } else {
 707                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 708                                         if let Ok(tx) = txres {
 709                                                 let mut output_val = 0;
 710                                                 for out in tx.output.iter() {
 711                                                         if out.value > 21_000_000_0000_0000 { return; }
 712                                                         output_val += out.value;
 713                                                         if output_val > 21_000_000_0000_0000 { return; }
 714                                                 }
 715                                                 loss_detector.connect_block(&[tx]);
 716                                         } else {
 717                                                 return;
 718                                         }
 719                                 }
 720                         },
 721                         13 => {
 722                                 loss_detector.disconnect_block();
 723                         },
 724                         14 => {
 725                                 let mut channels = channelmanager.list_channels();
 726                                 let channel_id = get_slice!(1)[0] as usize;
 727                                 if channel_id >= channels.len() { return; }
 728                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 729                                 channelmanager.force_close_broadcasting_latest_txn(&channels[channel_id].channel_id, &channels[channel_id].counterparty.node_id).unwrap();
 730                         },
 731                         // 15, 16, 17, 18 is above
 732                         19 => {
 733                                 let mut list = loss_detector.handler.get_peer_node_ids();
 734                                 list.sort_by_key(|v| v.0);
 735                                 if let Some((id, _)) = list.get(0) {
 736                                         loss_detector.handler.disconnect_by_node_id(*id);
 737                                 }
 738                         },
 739                         20 => loss_detector.handler.disconnect_all_peers(),
 740                         21 => loss_detector.handler.timer_tick_occurred(),
 741                         22 =>
 742                                 loss_detector.handler.broadcast_node_announcement([42; 3], [43; 32], Vec::new()),
 743                         32 => channelmanager.timer_tick_occurred(),
 744                         33 => {
 745                                 for id in intercepted_htlcs.drain(..) {
 746                                         channelmanager.fail_intercepted_htlc(id).unwrap();
 747                                 }
 748                         }
 749                         34 => {
 750                                 let amt = u64::from_be_bytes(get_bytes!(8));
 751                                 let chans = channelmanager.list_channels();
 752                                 for id in intercepted_htlcs.drain(..) {
 753                                         if chans.is_empty() {
 754                                                 channelmanager.fail_intercepted_htlc(id).unwrap();
 755                                         } else {
 756                                                 let chan = &chans[amt as usize % chans.len()];
 757                                                 channelmanager.forward_intercepted_htlc(id, &chan.channel_id, chan.counterparty.node_id, amt).unwrap();
 758                                         }
 759                                 }
 760                         }
 761                         _ => return,
 762                 }
 763                 loss_detector.handler.process_events();
 764                 for event in loss_detector.manager.get_and_clear_pending_events() {
 765                         match event {
 766                                 Event::FundingGenerationReady { temporary_channel_id, counterparty_node_id, channel_value_satoshis, output_script, .. } => {
 767                                         pending_funding_generation.push((temporary_channel_id, counterparty_node_id, channel_value_satoshis, output_script));
 768                                 },
 769                                 Event::PaymentClaimable { payment_hash, .. } => {
 770                                         //TODO: enhance by fetching random amounts from fuzz input?
 771                                         payments_received.push(payment_hash);
 772                                 },
 773                                 Event::PendingHTLCsForwardable {..} => {
 774                                         should_forward = true;
 775                                 },
 776                                 Event::HTLCIntercepted { intercept_id, .. } => {
 777                                         if !intercepted_htlcs.contains(&intercept_id) {
 778                                                 intercepted_htlcs.push(intercept_id);
 779                                         }
 780                                 },
 781                                 _ => {},
 782                         }
 783                 }
 784         }
 785 }
 786
 787 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 788         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 789         do_test(data, &logger);
 790 }
 791
 792 #[no_mangle]
 793 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
 794         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
 795         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
 796 }
 797
 798 #[cfg(test)]
 799 mod tests {
 800         use bitcoin::hashes::hex::FromHex;
 801         use lightning::util::logger::{Logger, Record};
 802         use std::collections::HashMap;
 803         use std::sync::{Arc, Mutex};
 804
 805         struct TrackingLogger {
 806                 /// (module, message) -> count
 807                 pub lines: Mutex<HashMap<(String, String), usize>>,
 808         }
 809         impl Logger for TrackingLogger {
 810                 fn log(&self, record: Record) {
 811                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 812                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 813                 }
 814         }
 815
 816         fn ext_from_hex(hex_with_spaces: &str, out: &mut Vec<u8>) {
 817                 for hex in hex_with_spaces.split(" ") {
 818                         out.append(&mut <Vec<u8>>::from_hex(hex).unwrap());
 819                 }
 820         }
 821
 822         #[test]
 823         fn test_no_existing_test_breakage() {
 824                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 825                 // changes (such as requesting feerate info in a new place), we run a pretty full
 826                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 827                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 828                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 829
 830                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
 831                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
 832                 // of the Lightning message
 833                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
 834                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
 835
 836                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
 837
 838                 let mut test = Vec::new();
 839                 // our network key
 840                 ext_from_hex("0100000000000000000000000000000000000000000000000000000000000000", &mut test);
 841                 // config
 842                 ext_from_hex("0000000000900000000000000000640001000000000001ffff0000000000000000ffffffffffffffffffffffffffffffff0000000000000000ffffffffffffffff000000ffffffff00ffff1a000400010000020400000000040200000a08ffffffffffffffff0001000000", &mut test);
 843
 844                 // new outbound connection with id 0
 845                 ext_from_hex("00", &mut test);
 846                 // peer's pubkey
 847                 ext_from_hex("030000000000000000000000000000000000000000000000000000000000000002", &mut test);
 848                 // inbound read from peer id 0 of len 50
 849                 ext_from_hex("030032", &mut test);
 850                 // noise act two (0||pubkey||mac)
 851                 ext_from_hex("00 030000000000000000000000000000000000000000000000000000000000000002 03000000000000000000000000000000", &mut test);
 852
 853                 // inbound read from peer id 0 of len 18
 854                 ext_from_hex("030012", &mut test);
 855                 // message header indicating message length 16
 856                 ext_from_hex("0010 03000000000000000000000000000000", &mut test);
 857                 // inbound read from peer id 0 of len 32
 858                 ext_from_hex("030020", &mut test);
 859                 // init message (type 16) with static_remotekey required, no channel_type/anchors/taproot, and other bits optional and mac
 860                 ext_from_hex("0010 00021aaa 0008aaa20aaa2a0a9aaa 03000000000000000000000000000000", &mut test);
 861
 862                 // inbound read from peer id 0 of len 18
 863                 ext_from_hex("030012", &mut test);
 864                 // message header indicating message length 327
 865                 ext_from_hex("0147 03000000000000000000000000000000", &mut test);
 866                 // inbound read from peer id 0 of len 254
 867                 ext_from_hex("0300fe", &mut test);
 868                 // beginning of open_channel message
 869                 ext_from_hex("0020 6fe28c0ab6f1b372c1a6a246ae63f74f931e8365e15a089c68d6190000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000162 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004", &mut test);
 870                 // inbound read from peer id 0 of len 89
 871                 ext_from_hex("030059", &mut test);
 872                 // rest of open_channel and mac
 873                 ext_from_hex("030000000000000000000000000000000000000000000000000000000000000005 020900000000000000000000000000000000000000000000000000000000000000 01 0000 01021000 03000000000000000000000000000000", &mut test);
 874
 875                 // One feerate request returning min feerate, which our open_channel also uses (ingested by FuzzEstimator)
 876                 ext_from_hex("00fd", &mut test);
 877                 // client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 878
 879                 // inbound read from peer id 0 of len 18
 880                 ext_from_hex("030012", &mut test);
 881                 // message header indicating message length 132
 882                 ext_from_hex("0084 03000000000000000000000000000000", &mut test);
 883                 // inbound read from peer id 0 of len 148
 884                 ext_from_hex("030094", &mut test);
 885                 // funding_created and mac
 886                 ext_from_hex("0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 00000000000000000000000000000000000000000000000000000000000000210100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
 887                 // client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 888
 889                 // connect a block with one transaction of len 94
 890                 ext_from_hex("0c005e", &mut test);
 891                 // the funding transaction
 892                 ext_from_hex("020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000", &mut test);
 893                 // connect a block with no transactions, one per line
 894                 ext_from_hex("0c0000", &mut test);
 895                 ext_from_hex("0c0000", &mut test);
 896                 ext_from_hex("0c0000", &mut test);
 897                 ext_from_hex("0c0000", &mut test);
 898                 ext_from_hex("0c0000", &mut test);
 899                 ext_from_hex("0c0000", &mut test);
 900                 ext_from_hex("0c0000", &mut test);
 901                 ext_from_hex("0c0000", &mut test);
 902                 ext_from_hex("0c0000", &mut test);
 903                 ext_from_hex("0c0000", &mut test);
 904                 ext_from_hex("0c0000", &mut test);
 905                 ext_from_hex("0c0000", &mut test);
 906                 // by now client should have sent a channel_ready (CHECK 3: SendChannelReady to 03000000 for chan 3d000000)
 907
 908                 // inbound read from peer id 0 of len 18
 909                 ext_from_hex("030012", &mut test);
 910                 // message header indicating message length 67
 911                 ext_from_hex("0043 03000000000000000000000000000000", &mut test);
 912                 // inbound read from peer id 0 of len 83
 913                 ext_from_hex("030053", &mut test);
 914                 // channel_ready and mac
 915                 ext_from_hex("0024 3d00000000000000000000000000000000000000000000000000000000000000 020800000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
 916
 917                 // new inbound connection with id 1
 918                 ext_from_hex("01", &mut test);
 919                 // inbound read from peer id 1 of len 50
 920                 ext_from_hex("030132", &mut test);
 921                 // inbound noise act 1
 922                 ext_from_hex("0003000000000000000000000000000000000000000000000000000000000000000703000000000000000000000000000000", &mut test);
 923                 // inbound read from peer id 1 of len 66
 924                 ext_from_hex("030142", &mut test);
 925                 // inbound noise act 3
 926                 ext_from_hex("000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000", &mut test);
 927
 928                 // inbound read from peer id 1 of len 18
 929                 ext_from_hex("030112", &mut test);
 930                 // message header indicating message length 16
 931                 ext_from_hex("0010 01000000000000000000000000000000", &mut test);
 932                 // inbound read from peer id 1 of len 32
 933                 ext_from_hex("030120", &mut test);
 934                 // init message (type 16) with static_remotekey required, no channel_type/anchors/taproot, and other bits optional and mac
 935                 ext_from_hex("0010 00021aaa 0008aaa20aaa2a0a9aaa 01000000000000000000000000000000", &mut test);
 936
 937                 // create outbound channel to peer 1 for 50k sat
 938                 ext_from_hex("05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8", &mut test);
 939                 // One feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
 940                 ext_from_hex("00fd", &mut test);
 941
 942                 // inbound read from peer id 1 of len 18
 943                 ext_from_hex("030112", &mut test);
 944                 // message header indicating message length 274
 945                 ext_from_hex("0112 01000000000000000000000000000000", &mut test);
 946                 // inbound read from peer id 1 of len 255
 947                 ext_from_hex("0301ff", &mut test);
 948                 // beginning of accept_channel
 949                 ext_from_hex("0021 0000000000000000000000000000000000000000000000000000000000000e05 0000000000000162 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 02660000000000000000000000000000", &mut test);
 950                 // inbound read from peer id 1 of len 35
 951                 ext_from_hex("030123", &mut test);
 952                 // rest of accept_channel and mac
 953                 ext_from_hex("0000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
 954
 955                 // create the funding transaction (client should send funding_created now)
 956                 ext_from_hex("0a", &mut test);
 957
 958                 // inbound read from peer id 1 of len 18
 959                 ext_from_hex("030112", &mut test);
 960                 // message header indicating message length 98
 961                 ext_from_hex("0062 01000000000000000000000000000000", &mut test);
 962                 // inbound read from peer id 1 of len 114
 963                 ext_from_hex("030172", &mut test);
 964                 // funding_signed message and mac
 965                 ext_from_hex("0023 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000007c0001000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
 966
 967                 // broadcast funding transaction
 968                 ext_from_hex("0b", &mut test);
 969                 // by now client should have sent a channel_ready (CHECK 4: SendChannelReady to 03020000 for chan 3f000000)
 970
 971                 // inbound read from peer id 1 of len 18
 972                 ext_from_hex("030112", &mut test);
 973                 // message header indicating message length 67
 974                 ext_from_hex("0043 01000000000000000000000000000000", &mut test);
 975                 // inbound read from peer id 1 of len 83
 976                 ext_from_hex("030153", &mut test);
 977                 // channel_ready and mac
 978                 ext_from_hex("0024 3a00000000000000000000000000000000000000000000000000000000000000 026700000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
 979
 980                 // inbound read from peer id 0 of len 18
 981                 ext_from_hex("030012", &mut test);
 982                 // message header indicating message length 1452
 983                 ext_from_hex("05ac 03000000000000000000000000000000", &mut test);
 984                 // inbound read from peer id 0 of len 255
 985                 ext_from_hex("0300ff", &mut test);
 986                 // beginning of update_add_htlc from 0 to 1 via client
 987                 ext_from_hex("0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 11 020203e8 0401a0 060800000e0000010000 0a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
 988                 // inbound read from peer id 0 of len 255
 989                 ext_from_hex("0300ff", &mut test);
 990                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
 991                 // inbound read from peer id 0 of len 255
 992                 ext_from_hex("0300ff", &mut test);
 993                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
 994                 // inbound read from peer id 0 of len 255
 995                 ext_from_hex("0300ff", &mut test);
 996                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
 997                 // inbound read from peer id 0 of len 255
 998                 ext_from_hex("0300ff", &mut test);
 999                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1000                 // inbound read from peer id 0 of len 193
1001                 ext_from_hex("0300c1", &mut test);
1002                 // end of update_add_htlc from 0 to 1 via client and mac
1003                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ab00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1004
1005                 // inbound read from peer id 0 of len 18
1006                 ext_from_hex("030012", &mut test);
1007                 // message header indicating message length 100
1008                 ext_from_hex("0064 03000000000000000000000000000000", &mut test);
1009                 // inbound read from peer id 0 of len 116
1010                 ext_from_hex("030074", &mut test);
1011                 // commitment_signed and mac
1012                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000300100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000", &mut test);
1013                 // client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
1014
1015                 // inbound read from peer id 0 of len 18
1016                 ext_from_hex("030012", &mut test);
1017                 // message header indicating message length 99
1018                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1019                 // inbound read from peer id 0 of len 115
1020                 ext_from_hex("030073", &mut test);
1021                 // revoke_and_ack and mac
1022                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0900000000000000000000000000000000000000000000000000000000000000 020b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1023
1024                 // process the now-pending HTLC forward
1025                 ext_from_hex("07", &mut test);
1026                 // client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: UpdateHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
1027
1028                 // we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
1029                 // inbound read from peer id 1 of len 18
1030                 ext_from_hex("030112", &mut test);
1031                 // message header indicating message length 100
1032                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1033                 // inbound read from peer id 1 of len 116
1034                 ext_from_hex("030174", &mut test);
1035                 // commitment_signed and mac
1036                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000006a0001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1037                 //
1038                 // inbound read from peer id 1 of len 18
1039                 ext_from_hex("030112", &mut test);
1040                 // message header indicating message length 99
1041                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1042                 // inbound read from peer id 1 of len 115
1043                 ext_from_hex("030173", &mut test);
1044                 // revoke_and_ack and mac
1045                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6600000000000000000000000000000000000000000000000000000000000000 026400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1046                 //
1047                 // inbound read from peer id 1 of len 18
1048                 ext_from_hex("030112", &mut test);
1049                 // message header indicating message length 74
1050                 ext_from_hex("004a 01000000000000000000000000000000", &mut test);
1051                 // inbound read from peer id 1 of len 90
1052                 ext_from_hex("03015a", &mut test);
1053                 // update_fulfill_htlc and mac
1054                 ext_from_hex("0082 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000", &mut test);
1055                 // client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
1056
1057                 // inbound read from peer id 1 of len 18
1058                 ext_from_hex("030112", &mut test);
1059                 // message header indicating message length 100
1060                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1061                 // inbound read from peer id 1 of len 116
1062                 ext_from_hex("030174", &mut test);
1063                 // commitment_signed and mac
1064                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000100001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1065
1066                 // inbound read from peer id 1 of len 18
1067                 ext_from_hex("030112", &mut test);
1068                 // message header indicating message length 99
1069                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1070                 // inbound read from peer id 1 of len 115
1071                 ext_from_hex("030173", &mut test);
1072                 // revoke_and_ack and mac
1073                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6700000000000000000000000000000000000000000000000000000000000000 026500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1074
1075                 // before responding to the commitment_signed generated above, send a new HTLC
1076                 // inbound read from peer id 0 of len 18
1077                 ext_from_hex("030012", &mut test);
1078                 // message header indicating message length 1452
1079                 ext_from_hex("05ac 03000000000000000000000000000000", &mut test);
1080                 // inbound read from peer id 0 of len 255
1081                 ext_from_hex("0300ff", &mut test);
1082                 // beginning of update_add_htlc from 0 to 1 via client
1083                 ext_from_hex("0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 11 020203e8 0401a0 060800000e0000010000 0a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1084                 // inbound read from peer id 0 of len 255
1085                 ext_from_hex("0300ff", &mut test);
1086                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1087                 // inbound read from peer id 0 of len 255
1088                 ext_from_hex("0300ff", &mut test);
1089                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1090                 // inbound read from peer id 0 of len 255
1091                 ext_from_hex("0300ff", &mut test);
1092                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1093                 // inbound read from peer id 0 of len 255
1094                 ext_from_hex("0300ff", &mut test);
1095                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1096                 // inbound read from peer id 0 of len 193
1097                 ext_from_hex("0300c1", &mut test);
1098                 // end of update_add_htlc from 0 to 1 via client and mac
1099                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ab00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1100
1101                 // now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
1102                 // inbound read from peer id 0 of len 18
1103                 ext_from_hex("030012", &mut test);
1104                 // message header indicating message length 99
1105                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1106                 // inbound read from peer id 0 of len 115
1107                 ext_from_hex("030073", &mut test);
1108                 // revoke_and_ack and mac
1109                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0800000000000000000000000000000000000000000000000000000000000000 020a00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1110                 // client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
1111
1112                 // inbound read from peer id 0 of len 18
1113                 ext_from_hex("030012", &mut test);
1114                 // message header indicating message length 100
1115                 ext_from_hex("0064 03000000000000000000000000000000", &mut test);
1116                 // inbound read from peer id 0 of len 116
1117                 ext_from_hex("030074", &mut test);
1118                 // commitment_signed and mac
1119                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000c30100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000", &mut test);
1120
1121                 // inbound read from peer id 0 of len 18
1122                 ext_from_hex("030012", &mut test);
1123                 // message header indicating message length 99
1124                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1125                 // inbound read from peer id 0 of len 115
1126                 ext_from_hex("030073", &mut test);
1127                 // revoke_and_ack and mac
1128                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0b00000000000000000000000000000000000000000000000000000000000000 020d00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1129
1130                 // process the now-pending HTLC forward
1131                 ext_from_hex("07", &mut test);
1132                 // client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
1133                 // we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
1134
1135                 // inbound read from peer id 1 of len 18
1136                 ext_from_hex("030112", &mut test);
1137                 // message header indicating message length 100
1138                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1139                 // inbound read from peer id 1 of len 116
1140                 ext_from_hex("030174", &mut test);
1141                 // commitment_signed and mac
1142                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1143
1144                 // inbound read from peer id 1 of len 18
1145                 ext_from_hex("030112", &mut test);
1146                 // message header indicating message length 99
1147                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1148                 // inbound read from peer id 1 of len 115
1149                 ext_from_hex("030173", &mut test);
1150                 // revoke_and_ack and mac
1151                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6400000000000000000000000000000000000000000000000000000000000000 027000000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1152
1153                 // inbound read from peer id 1 of len 18
1154                 ext_from_hex("030112", &mut test);
1155                 // message header indicating message length 44
1156                 ext_from_hex("002c 01000000000000000000000000000000", &mut test);
1157                 // inbound read from peer id 1 of len 60
1158                 ext_from_hex("03013c", &mut test);
1159                 // update_fail_htlc and mac
1160                 ext_from_hex("0083 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000", &mut test);
1161
1162                 // inbound read from peer id 1 of len 18
1163                 ext_from_hex("030112", &mut test);
1164                 // message header indicating message length 100
1165                 ext_from_hex("0064 01000000000000000000000000000000", &mut test);
1166                 // inbound read from peer id 1 of len 116
1167                 ext_from_hex("030174", &mut test);
1168                 // commitment_signed and mac
1169                 ext_from_hex("0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000", &mut test);
1170
1171                 // inbound read from peer id 1 of len 18
1172                 ext_from_hex("030112", &mut test);
1173                 // message header indicating message length 99
1174                 ext_from_hex("0063 01000000000000000000000000000000", &mut test);
1175                 // inbound read from peer id 1 of len 115
1176                 ext_from_hex("030173", &mut test);
1177                 // revoke_and_ack and mac
1178                 ext_from_hex("0085 3a00000000000000000000000000000000000000000000000000000000000000 6500000000000000000000000000000000000000000000000000000000000000 027100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000", &mut test);
1179
1180                 // process the now-pending HTLC forward
1181                 ext_from_hex("07", &mut test);
1182                 // client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
1183                 // now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
1184
1185                 // inbound read from peer id 0 of len 18
1186                 ext_from_hex("030012", &mut test);
1187                 // message header indicating message length 99
1188                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1189                 // inbound read from peer id 0 of len 115
1190                 ext_from_hex("030073", &mut test);
1191                 // revoke_and_ack and mac
1192                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0a00000000000000000000000000000000000000000000000000000000000000 020c00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1193
1194                 // inbound read from peer id 0 of len 18
1195                 ext_from_hex("030012", &mut test);
1196                 // message header indicating message length 100
1197                 ext_from_hex("0064 03000000000000000000000000000000", &mut test);
1198                 // inbound read from peer id 0 of len 116
1199                 ext_from_hex("030074", &mut test);
1200                 // commitment_signed and mac
1201                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000320100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000", &mut test);
1202                 // client should now respond with revoke_and_ack (CHECK 5 duplicate)
1203
1204                 // inbound read from peer id 0 of len 18
1205                 ext_from_hex("030012", &mut test);
1206                 // message header indicating message length 1452
1207                 ext_from_hex("05ac 03000000000000000000000000000000", &mut test);
1208                 // inbound read from peer id 0 of len 255
1209                 ext_from_hex("0300ff", &mut test);
1210                 // beginning of update_add_htlc from 0 to 1 via client
1211                 ext_from_hex("0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 12 02030927c0 0401a0 060800000e0000010000 0a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1212                 // inbound read from peer id 0 of len 255
1213                 ext_from_hex("0300ff", &mut test);
1214                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1215                 // inbound read from peer id 0 of len 255
1216                 ext_from_hex("0300ff", &mut test);
1217                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1218                 // inbound read from peer id 0 of len 255
1219                 ext_from_hex("0300ff", &mut test);
1220                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1221                 // inbound read from peer id 0 of len 255
1222                 ext_from_hex("0300ff", &mut test);
1223                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff", &mut test);
1224                 // inbound read from peer id 0 of len 193
1225                 ext_from_hex("0300c1", &mut test);
1226                 // end of update_add_htlc from 0 to 1 via client and mac
1227                 ext_from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 5300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1228
1229                 // inbound read from peer id 0 of len 18
1230                 ext_from_hex("030012", &mut test);
1231                 // message header indicating message length 164
1232                 ext_from_hex("00a4 03000000000000000000000000000000", &mut test);
1233                 // inbound read from peer id 0 of len 180
1234                 ext_from_hex("0300b4", &mut test);
1235                 // commitment_signed and mac
1236                 ext_from_hex("0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000750100000000000000000000000000000000000000000000000000000000000000 0001 00000000000000000000000000000000000000000000000000000000000000670500000000000000000000000000000000000000000000000000000000000006 03000000000000000000000000000000", &mut test);
1237                 // client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
1238
1239                 // inbound read from peer id 0 of len 18
1240                 ext_from_hex("030012", &mut test);
1241                 // message header indicating message length 99
1242                 ext_from_hex("0063 03000000000000000000000000000000", &mut test);
1243                 // inbound read from peer id 0 of len 115
1244                 ext_from_hex("030073", &mut test);
1245                 // revoke_and_ack and mac
1246                 ext_from_hex("0085 3d00000000000000000000000000000000000000000000000000000000000000 0d00000000000000000000000000000000000000000000000000000000000000 020f00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000", &mut test);
1247
1248                 // process the now-pending HTLC forward
1249                 ext_from_hex("07", &mut test);
1250                 // client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
1251
1252                 // connect a block with one transaction of len 125
1253                 ext_from_hex("0c007d", &mut test);
1254                 // the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
1255                 ext_from_hex("02000000013a000000000000000000000000000000000000000000000000000000000000000000000000000000800258020000000000002200204b0000000000000000000000000000000000000000000000000000000000000014c0000000000000160014280000000000000000000000000000000000000005000020", &mut test);
1256                 //
1257                 // connect a block with one transaction of len 94
1258                 ext_from_hex("0c005e", &mut test);
1259                 // the HTLC timeout transaction
1260                 ext_from_hex("0200000001730000000000000000000000000000000000000000000000000000000000000000000000000000000001a701000000000000220020b20000000000000000000000000000000000000000000000000000000000000000000000", &mut test);
1261                 // connect a block with no transactions
1262                 ext_from_hex("0c0000", &mut test);
1263                 // connect a block with no transactions
1264                 ext_from_hex("0c0000", &mut test);
1265                 // connect a block with no transactions
1266                 ext_from_hex("0c0000", &mut test);
1267                 // connect a block with no transactions
1268                 ext_from_hex("0c0000", &mut test);
1269                 // connect a block with no transactions
1270                 ext_from_hex("0c0000", &mut test);
1271
1272                 // process the now-pending HTLC forward
1273                 ext_from_hex("07", &mut test);
1274                 // client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
1275
1276                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
1277                 super::do_test(&test, &(Arc::clone(&logger) as Arc<dyn Logger>));
1278
1279                 let log_entries = logger.lines.lock().unwrap();
1280                 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
1281                 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
1282                 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
1283                 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
1284                 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
1285                 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
1286                 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
1287                 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
1288                 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
1289                 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
1290         }
1291 }