_ 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::block::BlockHeader;
  17 use bitcoin::blockdata::transaction::{Transaction, TxOut};
  18 use bitcoin::blockdata::script::{Builder, Script};
  19 use bitcoin::blockdata::opcodes;
  20 use bitcoin::consensus::encode::deserialize;
  21 use bitcoin::network::constants::Network;
  22 use bitcoin::blockdata::constants::genesis_block;
  23
  24 use bitcoin::hashes::Hash as TraitImport;
  25 use bitcoin::hashes::HashEngine as TraitImportEngine;
  26 use bitcoin::hashes::sha256::Hash as Sha256;
  27 use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
  28
  29 use lightning::chain;
  30 use lightning::chain::Listen;
  31 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
  32 use lightning::chain::chainmonitor;
  33 use lightning::chain::transaction::OutPoint;
  34 use lightning::chain::keysinterface::{InMemorySigner, KeysInterface};
  35 use lightning::ln::channelmanager::{ChainParameters, ChannelManager, PaymentHash, PaymentPreimage, PaymentSecret};
  36 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
  37 use lightning::ln::msgs::DecodeError;
  38 use lightning::routing::router::get_route;
  39 use lightning::routing::network_graph::NetGraphMsgHandler;
  40 use lightning::util::config::UserConfig;
  41 use lightning::util::events::{EventsProvider,Event};
  42 use lightning::util::enforcing_trait_impls::EnforcingSigner;
  43 use lightning::util::logger::Logger;
  44 use lightning::util::ser::Readable;
  45
  46 use utils::test_logger;
  47 use utils::test_persister::TestPersister;
  48
  49 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
  50 use bitcoin::secp256k1::Secp256k1;
  51
  52 use std::cell::RefCell;
  53 use std::collections::{HashMap, hash_map};
  54 use std::cmp;
  55 use std::sync::Arc;
  56 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
  57
  58 #[inline]
  59 pub fn slice_to_be16(v: &[u8]) -> u16 {
  60         ((v[0] as u16) << 8*1) |
  61         ((v[1] as u16) << 8*0)
  62 }
  63
  64 #[inline]
  65 pub fn slice_to_be24(v: &[u8]) -> u32 {
  66         ((v[0] as u32) << 8*2) |
  67         ((v[1] as u32) << 8*1) |
  68         ((v[2] as u32) << 8*0)
  69 }
  70
  71 #[inline]
  72 pub fn slice_to_be32(v: &[u8]) -> u32 {
  73         ((v[0] as u32) << 8*3) |
  74         ((v[1] as u32) << 8*2) |
  75         ((v[2] as u32) << 8*1) |
  76         ((v[3] as u32) << 8*0)
  77 }
  78
  79 #[inline]
  80 pub fn be64_to_array(u: u64) -> [u8; 8] {
  81         let mut v = [0; 8];
  82         v[0] = ((u >> 8*7) & 0xff) as u8;
  83         v[1] = ((u >> 8*6) & 0xff) as u8;
  84         v[2] = ((u >> 8*5) & 0xff) as u8;
  85         v[3] = ((u >> 8*4) & 0xff) as u8;
  86         v[4] = ((u >> 8*3) & 0xff) as u8;
  87         v[5] = ((u >> 8*2) & 0xff) as u8;
  88         v[6] = ((u >> 8*1) & 0xff) as u8;
  89         v[7] = ((u >> 8*0) & 0xff) as u8;
  90         v
  91 }
  92
  93 struct InputData {
  94         data: Vec<u8>,
  95         read_pos: AtomicUsize,
  96 }
  97 impl InputData {
  98         fn get_slice(&self, len: usize) -> Option<&[u8]> {
  99                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
 100                 if self.data.len() < old_pos + len {
 101                         return None;
 102                 }
 103                 Some(&self.data[old_pos..old_pos + len])
 104         }
 105 }
 106
 107 struct FuzzEstimator {
 108         input: Arc<InputData>,
 109 }
 110 impl FeeEstimator for FuzzEstimator {
 111         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u32 {
 112                 //TODO: We should actually be testing at least much more than 64k...
 113                 match self.input.get_slice(2) {
 114                         Some(slice) => cmp::max(slice_to_be16(slice) as u32, 253),
 115                         None => 253
 116                 }
 117         }
 118 }
 119
 120 struct TestBroadcaster {}
 121 impl BroadcasterInterface for TestBroadcaster {
 122         fn broadcast_transaction(&self, _tx: &Transaction) {}
 123 }
 124
 125 #[derive(Clone)]
 126 struct Peer<'a> {
 127         id: u8,
 128         peers_connected: &'a RefCell<[bool; 256]>,
 129 }
 130 impl<'a> SocketDescriptor for Peer<'a> {
 131         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
 132                 data.len()
 133         }
 134         fn disconnect_socket(&mut self) {
 135                 assert!(self.peers_connected.borrow()[self.id as usize]);
 136                 self.peers_connected.borrow_mut()[self.id as usize] = false;
 137         }
 138 }
 139 impl<'a> PartialEq for Peer<'a> {
 140         fn eq(&self, other: &Self) -> bool {
 141                 self.id == other.id
 142         }
 143 }
 144 impl<'a> Eq for Peer<'a> {}
 145 impl<'a> std::hash::Hash for Peer<'a> {
 146         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
 147                 self.id.hash(h)
 148         }
 149 }
 150
 151 type ChannelMan = ChannelManager<
 152         EnforcingSigner,
 153         Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 154         Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>;
 155 type PeerMan<'a> = PeerManager<Peer<'a>, Arc<ChannelMan>, Arc<NetGraphMsgHandler<Arc<dyn chain::Access>, Arc<dyn Logger>>>, Arc<dyn Logger>>;
 156
 157 struct MoneyLossDetector<'a> {
 158         manager: Arc<ChannelMan>,
 159         monitor: Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 160         handler: PeerMan<'a>,
 161
 162         peers: &'a RefCell<[bool; 256]>,
 163         funding_txn: Vec<Transaction>,
 164         txids_confirmed: HashMap<Txid, usize>,
 165         header_hashes: Vec<(BlockHash, u32)>,
 166         height: usize,
 167         max_height: usize,
 168         blocks_connected: u32,
 169 }
 170 impl<'a> MoneyLossDetector<'a> {
 171         pub fn new(peers: &'a RefCell<[bool; 256]>,
 172                    manager: Arc<ChannelMan>,
 173                    monitor: Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 174                    handler: PeerMan<'a>) -> Self {
 175                 MoneyLossDetector {
 176                         manager,
 177                         monitor,
 178                         handler,
 179
 180                         peers,
 181                         funding_txn: Vec::new(),
 182                         txids_confirmed: HashMap::new(),
 183                         header_hashes: vec![(genesis_block(Network::Bitcoin).block_hash(), 0)],
 184                         height: 0,
 185                         max_height: 0,
 186                         blocks_connected: 0,
 187                 }
 188         }
 189
 190         fn connect_block(&mut self, all_txn: &[Transaction]) {
 191                 let mut txdata = Vec::with_capacity(all_txn.len());
 192                 for (idx, tx) in all_txn.iter().enumerate() {
 193                         let txid = tx.txid();
 194                         match self.txids_confirmed.entry(txid) {
 195                                 hash_map::Entry::Vacant(e) => {
 196                                         e.insert(self.height);
 197                                         txdata.push((idx + 1, tx));
 198                                 },
 199                                 _ => {},
 200                         }
 201                 }
 202
 203                 self.blocks_connected += 1;
 204                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height].0, merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
 205                 self.height += 1;
 206                 self.manager.transactions_confirmed(&header, self.height as u32, &txdata);
 207                 self.manager.update_best_block(&header, self.height as u32);
 208                 (*self.monitor).block_connected(&header, &txdata, self.height as u32);
 209                 if self.header_hashes.len() > self.height {
 210                         self.header_hashes[self.height] = (header.block_hash(), self.blocks_connected);
 211                 } else {
 212                         assert_eq!(self.header_hashes.len(), self.height);
 213                         self.header_hashes.push((header.block_hash(), self.blocks_connected));
 214                 }
 215                 self.max_height = cmp::max(self.height, self.max_height);
 216         }
 217
 218         fn disconnect_block(&mut self) {
 219                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 220                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height - 1].0, merkle_root: Default::default(), time: self.header_hashes[self.height].1, bits: 42, nonce: 42 };
 221                         self.manager.block_disconnected(&header, self.height as u32);
 222                         self.monitor.block_disconnected(&header, self.height as u32);
 223                         self.height -= 1;
 224                         let removal_height = self.height;
 225                         self.txids_confirmed.retain(|_, height| {
 226                                 removal_height != *height
 227                         });
 228                 }
 229         }
 230 }
 231
 232 impl<'a> Drop for MoneyLossDetector<'a> {
 233         fn drop(&mut self) {
 234                 if !::std::thread::panicking() {
 235                         // Disconnect all peers
 236                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 237                                 if *peer {
 238                                         self.handler.socket_disconnected(&Peer{id: idx as u8, peers_connected: &self.peers});
 239                                 }
 240                         }
 241
 242                         // Force all channels onto the chain (and time out claim txn)
 243                         self.manager.force_close_all_channels();
 244                 }
 245         }
 246 }
 247
 248 struct KeyProvider {
 249         node_secret: SecretKey,
 250         counter: AtomicU64,
 251 }
 252 impl KeysInterface for KeyProvider {
 253         type Signer = EnforcingSigner;
 254
 255         fn get_node_secret(&self) -> SecretKey {
 256                 self.node_secret.clone()
 257         }
 258
 259         fn get_destination_script(&self) -> Script {
 260                 let secp_ctx = Secp256k1::signing_only();
 261                 let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 262                 let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 263                 Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 264         }
 265
 266         fn get_shutdown_pubkey(&self) -> PublicKey {
 267                 let secp_ctx = Secp256k1::signing_only();
 268                 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]).unwrap())
 269         }
 270
 271         fn get_channel_signer(&self, inbound: bool, channel_value_satoshis: u64) -> EnforcingSigner {
 272                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
 273                 let secp_ctx = Secp256k1::signing_only();
 274                 EnforcingSigner::new(if inbound {
 275                         InMemorySigner::new(
 276                                 &secp_ctx,
 277                                 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(),
 278                                 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(),
 279                                 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(),
 280                                 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(),
 281                                 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(),
 282                                 [0, 0, 0, 0, 0, 0, 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],
 283                                 channel_value_satoshis,
 284                                 [0; 32]
 285                         )
 286                 } else {
 287                         InMemorySigner::new(
 288                                 &secp_ctx,
 289                                 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(),
 290                                 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(),
 291                                 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(),
 292                                 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(),
 293                                 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(),
 294                                 [0, 0, 0, 0, 0, 0, 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],
 295                                 channel_value_satoshis,
 296                                 [0; 32]
 297                         )
 298                 })
 299         }
 300
 301         fn get_secure_random_bytes(&self) -> [u8; 32] {
 302                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 303                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 304                 (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]
 305         }
 306
 307         fn read_chan_signer(&self, data: &[u8]) -> Result<EnforcingSigner, DecodeError> {
 308                 EnforcingSigner::read(&mut std::io::Cursor::new(data))
 309         }
 310 }
 311
 312 #[inline]
 313 pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 314         let input = Arc::new(InputData {
 315                 data: data.to_vec(),
 316                 read_pos: AtomicUsize::new(0),
 317         });
 318         let fee_est = Arc::new(FuzzEstimator {
 319                 input: input.clone(),
 320         });
 321
 322         macro_rules! get_slice {
 323                 ($len: expr) => {
 324                         match input.get_slice($len as usize) {
 325                                 Some(slice) => slice,
 326                                 None => return,
 327                         }
 328                 }
 329         }
 330
 331         macro_rules! get_pubkey {
 332                 () => {
 333                         match PublicKey::from_slice(get_slice!(33)) {
 334                                 Ok(key) => key,
 335                                 Err(_) => return,
 336                         }
 337                 }
 338         }
 339
 340         let our_network_key = match SecretKey::from_slice(get_slice!(32)) {
 341                 Ok(key) => key,
 342                 Err(_) => return,
 343         };
 344
 345         let broadcast = Arc::new(TestBroadcaster{});
 346         let monitor = Arc::new(chainmonitor::ChainMonitor::new(None, broadcast.clone(), Arc::clone(&logger), fee_est.clone(), Arc::new(TestPersister{})));
 347
 348         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone(), counter: AtomicU64::new(0) });
 349         let mut config = UserConfig::default();
 350         config.channel_options.fee_proportional_millionths =  slice_to_be32(get_slice!(4));
 351         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
 352         config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
 353         let network = Network::Bitcoin;
 354         let genesis_hash = genesis_block(network).block_hash();
 355         let params = ChainParameters {
 356                 network,
 357                 latest_hash: genesis_hash,
 358                 latest_height: 0,
 359         };
 360         let channelmanager = Arc::new(ChannelManager::new(fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, params));
 361         let our_id = PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret());
 362         let net_graph_msg_handler = Arc::new(NetGraphMsgHandler::new(genesis_hash, None, Arc::clone(&logger)));
 363
 364         let peers = RefCell::new([false; 256]);
 365         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 366                 chan_handler: channelmanager.clone(),
 367                 route_handler: net_graph_msg_handler.clone(),
 368         }, our_network_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, 15, 0], Arc::clone(&logger)));
 369
 370         let mut should_forward = false;
 371         let mut payments_received: Vec<(PaymentHash, Option<PaymentSecret>, u64)> = Vec::new();
 372         let mut payments_sent = 0;
 373         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
 374         let mut pending_funding_signatures = HashMap::new();
 375         let mut pending_funding_relay = Vec::new();
 376
 377         loop {
 378                 match get_slice!(1)[0] {
 379                         0 => {
 380                                 let mut new_id = 0;
 381                                 for i in 1..256 {
 382                                         if !peers.borrow()[i-1] {
 383                                                 new_id = i;
 384                                                 break;
 385                                         }
 386                                 }
 387                                 if new_id == 0 { return; }
 388                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 389                                 peers.borrow_mut()[new_id - 1] = true;
 390                         },
 391                         1 => {
 392                                 let mut new_id = 0;
 393                                 for i in 1..256 {
 394                                         if !peers.borrow()[i-1] {
 395                                                 new_id = i;
 396                                                 break;
 397                                         }
 398                                 }
 399                                 if new_id == 0 { return; }
 400                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 401                                 peers.borrow_mut()[new_id - 1] = true;
 402                         },
 403                         2 => {
 404                                 let peer_id = get_slice!(1)[0];
 405                                 if !peers.borrow()[peer_id as usize] { return; }
 406                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
 407                                 peers.borrow_mut()[peer_id as usize] = false;
 408                         },
 409                         3 => {
 410                                 let peer_id = get_slice!(1)[0];
 411                                 if !peers.borrow()[peer_id as usize] { return; }
 412                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
 413                                         Ok(res) => assert!(!res),
 414                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 415                                 }
 416                         },
 417                         4 => {
 418                                 let value = slice_to_be24(get_slice!(3)) as u64;
 419                                 let route = match get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &get_pubkey!(), None, None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 420                                         Ok(route) => route,
 421                                         Err(_) => return,
 422                                 };
 423                                 let mut payment_hash = PaymentHash([0; 32]);
 424                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 425                                 let mut sha = Sha256::engine();
 426                                 sha.input(&payment_hash.0[..]);
 427                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 428                                 payments_sent += 1;
 429                                 match channelmanager.send_payment(&route, payment_hash, &None) {
 430                                         Ok(_) => {},
 431                                         Err(_) => return,
 432                                 }
 433                         },
 434                         15 => {
 435                                 let value = slice_to_be24(get_slice!(3)) as u64;
 436                                 let mut route = match get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &get_pubkey!(), None, None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 437                                         Ok(route) => route,
 438                                         Err(_) => return,
 439                                 };
 440                                 route.paths.push(route.paths[0].clone());
 441                                 let mut payment_hash = PaymentHash([0; 32]);
 442                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 443                                 let mut sha = Sha256::engine();
 444                                 sha.input(&payment_hash.0[..]);
 445                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 446                                 payments_sent += 1;
 447                                 let mut payment_secret = PaymentSecret([0; 32]);
 448                                 payment_secret.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 449                                 payments_sent += 1;
 450                                 match channelmanager.send_payment(&route, payment_hash, &Some(payment_secret)) {
 451                                         Ok(_) => {},
 452                                         Err(_) => return,
 453                                 }
 454                         },
 455                         5 => {
 456                                 let peer_id = get_slice!(1)[0];
 457                                 if !peers.borrow()[peer_id as usize] { return; }
 458                                 let their_key = get_pubkey!();
 459                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 460                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 461                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None).is_err() { return; }
 462                         },
 463                         6 => {
 464                                 let mut channels = channelmanager.list_channels();
 465                                 let channel_id = get_slice!(1)[0] as usize;
 466                                 if channel_id >= channels.len() { return; }
 467                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 468                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
 469                         },
 470                         7 => {
 471                                 if should_forward {
 472                                         channelmanager.process_pending_htlc_forwards();
 473                                         should_forward = false;
 474                                 }
 475                         },
 476                         8 => {
 477                                 for (payment, payment_secret, amt) in payments_received.drain(..) {
 478                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 479                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 480                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 481                                         // place that anywhere in our preimage.
 482                                         if &payment.0[1..] != &[0; 31] {
 483                                                 channelmanager.fail_htlc_backwards(&payment, &payment_secret);
 484                                         } else {
 485                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 486                                                 payment_preimage.0[0] = payment.0[0];
 487                                                 channelmanager.claim_funds(payment_preimage, &payment_secret, amt);
 488                                         }
 489                                 }
 490                         },
 491                         9 => {
 492                                 for (payment, payment_secret, _) in payments_received.drain(..) {
 493                                         channelmanager.fail_htlc_backwards(&payment, &payment_secret);
 494                                 }
 495                         },
 496                         10 => {
 497                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
 498                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
 499                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
 500                                                 }] };
 501                                         let funding_output = 'search_loop: loop {
 502                                                 let funding_txid = tx.txid();
 503                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
 504                                                         let outpoint = OutPoint { txid: funding_txid, index: 0 };
 505                                                         for chan in channelmanager.list_channels() {
 506                                                                 if chan.channel_id == outpoint.to_channel_id() {
 507                                                                         tx.version += 1;
 508                                                                         continue 'search_loop;
 509                                                                 }
 510                                                         }
 511                                                         break outpoint;
 512                                                 }
 513                                                 tx.version += 1;
 514                                                 if tx.version > 0xff {
 515                                                         continue 'outer_loop;
 516                                                 }
 517                                         };
 518                                         channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
 519                                         pending_funding_signatures.insert(funding_output, tx);
 520                                 }
 521                         },
 522                         11 => {
 523                                 if !pending_funding_relay.is_empty() {
 524                                         loss_detector.connect_block(&pending_funding_relay[..]);
 525                                         for _ in 2..100 {
 526                                                 loss_detector.connect_block(&[]);
 527                                         }
 528                                 }
 529                                 for tx in pending_funding_relay.drain(..) {
 530                                         loss_detector.funding_txn.push(tx);
 531                                 }
 532                         },
 533                         12 => {
 534                                 let txlen = slice_to_be16(get_slice!(2));
 535                                 if txlen == 0 {
 536                                         loss_detector.connect_block(&[]);
 537                                 } else {
 538                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 539                                         if let Ok(tx) = txres {
 540                                                 let mut output_val = 0;
 541                                                 for out in tx.output.iter() {
 542                                                         if out.value > 21_000_000_0000_0000 { return; }
 543                                                         output_val += out.value;
 544                                                         if output_val > 21_000_000_0000_0000 { return; }
 545                                                 }
 546                                                 loss_detector.connect_block(&[tx]);
 547                                         } else {
 548                                                 return;
 549                                         }
 550                                 }
 551                         },
 552                         13 => {
 553                                 loss_detector.disconnect_block();
 554                         },
 555                         14 => {
 556                                 let mut channels = channelmanager.list_channels();
 557                                 let channel_id = get_slice!(1)[0] as usize;
 558                                 if channel_id >= channels.len() { return; }
 559                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 560                                 channelmanager.force_close_channel(&channels[channel_id].channel_id).unwrap();
 561                         },
 562                         // 15 is above
 563                         _ => return,
 564                 }
 565                 loss_detector.handler.process_events();
 566                 for event in loss_detector.manager.get_and_clear_pending_events() {
 567                         match event {
 568                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
 569                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
 570                                 },
 571                                 Event::FundingBroadcastSafe { funding_txo, .. } => {
 572                                         pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
 573                                 },
 574                                 Event::PaymentReceived { payment_hash, payment_secret, amt } => {
 575                                         //TODO: enhance by fetching random amounts from fuzz input?
 576                                         payments_received.push((payment_hash, payment_secret, amt));
 577                                 },
 578                                 Event::PaymentSent {..} => {},
 579                                 Event::PaymentFailed {..} => {},
 580                                 Event::PendingHTLCsForwardable {..} => {
 581                                         should_forward = true;
 582                                 },
 583                                 Event::SpendableOutputs {..} => {},
 584                         }
 585                 }
 586         }
 587 }
 588
 589 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 590         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 591         do_test(data, &logger);
 592 }
 593
 594 #[no_mangle]
 595 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
 596         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
 597         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
 598 }
 599
 600 #[cfg(test)]
 601 mod tests {
 602         use lightning::util::logger::{Logger, Record};
 603         use std::collections::HashMap;
 604         use std::sync::{Arc, Mutex};
 605
 606         struct TrackingLogger {
 607                 /// (module, message) -> count
 608                 pub lines: Mutex<HashMap<(String, String), usize>>,
 609         }
 610         impl Logger for TrackingLogger {
 611                 fn log(&self, record: &Record) {
 612                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 613                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 614                 }
 615         }
 616
 617         #[test]
 618         fn test_no_existing_test_breakage() {
 619                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 620                 // changes (such as requesting feerate info in a new place), we run a pretty full
 621                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 622                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 623                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 624
 625                 // What each byte represents is broken down below, and then everything is concatenated into
 626                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
 627
 628                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
 629                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
 630                 // of the Lightning message
 631                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
 632                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
 633
 634                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
 635
 636                 // 0100000000000000000000000000000000000000000000000000000000000000 - our network key
 637                 // 00000000 - fee_proportional_millionths
 638                 // 01 - announce_channels_publicly
 639                 //
 640                 // 00 - new outbound connection with id 0
 641                 // 030000000000000000000000000000000000000000000000000000000000000002 - peer's pubkey
 642                 // 030032 - inbound read from peer id 0 of len 50
 643                 // 00 030000000000000000000000000000000000000000000000000000000000000002 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
 644                 //
 645                 // 030012 - inbound read from peer id 0 of len 18
 646                 // 000a 03000000000000000000000000000000 - message header indicating message length 10
 647                 // 03001a - inbound read from peer id 0 of len 26
 648                 // 0010 00022000 00022000 03000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 649                 //
 650                 // 030012 - inbound read from peer id 0 of len 18
 651                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
 652                 // 0300fe - inbound read from peer id 0 of len 254
 653                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000222 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
 654                 // 030053 - inbound read from peer id 0 of len 83
 655                 // 030000000000000000000000000000000000000000000000000000000000000005 020900000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
 656                 //
 657                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 658                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 659                 //
 660                 // 030012 - inbound read from peer id 0 of len 18
 661                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
 662                 // 030094 - inbound read from peer id 0 of len 148
 663                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 00000000000000000000000000000000000000000000000000000000000000210100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_created and mac
 664                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 665                 //
 666                 // 0c005e - connect a block with one transaction of len 94
 667                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 668                 // 0c0000 - connect a block with no transactions
 669                 // 0c0000 - connect a block with no transactions
 670                 // 0c0000 - connect a block with no transactions
 671                 // 0c0000 - connect a block with no transactions
 672                 // 0c0000 - connect a block with no transactions
 673                 // 0c0000 - connect a block with no transactions
 674                 // 0c0000 - connect a block with no transactions
 675                 // 0c0000 - connect a block with no transactions
 676                 // 0c0000 - connect a block with no transactions
 677                 // 0c0000 - connect a block with no transactions
 678                 // 0c0000 - connect a block with no transactions
 679                 // 0c0000 - connect a block with no transactions
 680                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
 681                 //
 682                 // 030012 - inbound read from peer id 0 of len 18
 683                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
 684                 // 030053 - inbound read from peer id 0 of len 83
 685                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 020800000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
 686                 //
 687                 // 01 - new inbound connection with id 1
 688                 // 030132 - inbound read from peer id 1 of len 50
 689                 // 0003000000000000000000000000000000000000000000000000000000000000000703000000000000000000000000000000 - inbound noise act 1
 690                 // 030142 - inbound read from peer id 1 of len 66
 691                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
 692                 //
 693                 // 030112 - inbound read from peer id 1 of len 18
 694                 // 000a 01000000000000000000000000000000 - message header indicating message length 10
 695                 // 03011a - inbound read from peer id 1 of len 26
 696                 // 0010 00022000 00022000 01000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 697                 //
 698                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
 699                 // 00fd00fd - Two feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
 700                 //
 701                 // 030112 - inbound read from peer id 1 of len 18
 702                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
 703                 // 0301ff - inbound read from peer id 1 of len 255
 704                 // 0021 0000000000000000000000000000000000000000000000000000000000000e05 000000000000001a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 02660000000000000000000000000000 - beginning of accept_channel
 705                 // 030121 - inbound read from peer id 1 of len 33
 706                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
 707                 //
 708                 // 0a - create the funding transaction (client should send funding_created now)
 709                 //
 710                 // 030112 - inbound read from peer id 1 of len 18
 711                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
 712                 // 030172 - inbound read from peer id 1 of len 114
 713                 // 0023 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000007c0001000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_signed message and mac
 714                 //
 715                 // 0b - broadcast funding transaction
 716                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
 717                 //
 718                 // 030112 - inbound read from peer id 1 of len 18
 719                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
 720                 // 030153 - inbound read from peer id 1 of len 83
 721                 // 0024 3a00000000000000000000000000000000000000000000000000000000000000 026700000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
 722                 //
 723                 // 030012 - inbound read from peer id 0 of len 18
 724                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 725                 // 0300ff - inbound read from peer id 0 of len 255
 726                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e80000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 727                 // 0300ff - inbound read from peer id 0 of len 255
 728                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 729                 // 0300ff - inbound read from peer id 0 of len 255
 730                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 731                 // 0300ff - inbound read from peer id 0 of len 255
 732                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 733                 // 0300ff - inbound read from peer id 0 of len 255
 734                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 735                 // 0300c1 - inbound read from peer id 0 of len 193
 736                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 737                 //
 738                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 739                 //
 740                 // 030012 - inbound read from peer id 0 of len 18
 741                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 742                 // 030074 - inbound read from peer id 0 of len 116
 743                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000300100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
 744                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
 745                 //
 746                 // 030012 - inbound read from peer id 0 of len 18
 747                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 748                 // 030073 - inbound read from peer id 0 of len 115
 749                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0900000000000000000000000000000000000000000000000000000000000000 020b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 750                 //
 751                 // 07 - process the now-pending HTLC forward
 752                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
 753                 //
 754                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
 755                 // 030112 - inbound read from peer id 1 of len 18
 756                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 757                 // 030174 - inbound read from peer id 1 of len 116
 758                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000006a0001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 759                 //
 760                 // 030112 - inbound read from peer id 1 of len 18
 761                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 762                 // 030173 - inbound read from peer id 1 of len 115
 763                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6600000000000000000000000000000000000000000000000000000000000000 026400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 764                 //
 765                 // 030112 - inbound read from peer id 1 of len 18
 766                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
 767                 // 03015a - inbound read from peer id 1 of len 90
 768                 // 0082 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
 769                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
 770                 //
 771                 // 030112 - inbound read from peer id 1 of len 18
 772                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 773                 // 030174 - inbound read from peer id 1 of len 116
 774                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000100001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 775                 //
 776                 // 030112 - inbound read from peer id 1 of len 18
 777                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 778                 // 030173 - inbound read from peer id 1 of len 115
 779                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6700000000000000000000000000000000000000000000000000000000000000 026500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 780                 //
 781                 // - before responding to the commitment_signed generated above, send a new HTLC
 782                 // 030012 - inbound read from peer id 0 of len 18
 783                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 784                 // 0300ff - inbound read from peer id 0 of len 255
 785                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e80000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 786                 // 0300ff - inbound read from peer id 0 of len 255
 787                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 788                 // 0300ff - inbound read from peer id 0 of len 255
 789                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 790                 // 0300ff - inbound read from peer id 0 of len 255
 791                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 792                 // 0300ff - inbound read from peer id 0 of len 255
 793                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 794                 // 0300c1 - inbound read from peer id 0 of len 193
 795                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 796                 //
 797                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 798                 //
 799                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
 800                 // 030012 - inbound read from peer id 0 of len 18
 801                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 802                 // 030073 - inbound read from peer id 0 of len 115
 803                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0800000000000000000000000000000000000000000000000000000000000000 020a00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 804                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 805                 //
 806                 // 030012 - inbound read from peer id 0 of len 18
 807                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 808                 // 030074 - inbound read from peer id 0 of len 116
 809                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000c30100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
 810                 //
 811                 // 030012 - inbound read from peer id 0 of len 18
 812                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 813                 // 030073 - inbound read from peer id 0 of len 115
 814                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0b00000000000000000000000000000000000000000000000000000000000000 020d00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 815                 //
 816                 // 07 - process the now-pending HTLC forward
 817                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 818                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
 819                 //
 820                 // 030112 - inbound read from peer id 1 of len 18
 821                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 822                 // 030174 - inbound read from peer id 1 of len 116
 823                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 824                 //
 825                 // 030112 - inbound read from peer id 1 of len 18
 826                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 827                 // 030173 - inbound read from peer id 1 of len 115
 828                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6400000000000000000000000000000000000000000000000000000000000000 027000000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 829                 //
 830                 // 030112 - inbound read from peer id 1 of len 18
 831                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
 832                 // 03013c - inbound read from peer id 1 of len 60
 833                 // 0083 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
 834                 //
 835                 // 030112 - inbound read from peer id 1 of len 18
 836                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 837                 // 030174 - inbound read from peer id 1 of len 116
 838                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 839                 //
 840                 // 030112 - inbound read from peer id 1 of len 18
 841                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 842                 // 030173 - inbound read from peer id 1 of len 115
 843                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6500000000000000000000000000000000000000000000000000000000000000 027100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 844                 //
 845                 // 07 - process the now-pending HTLC forward
 846                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
 847                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
 848                 //
 849                 // 030012 - inbound read from peer id 0 of len 18
 850                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 851                 // 030073 - inbound read from peer id 0 of len 115
 852                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0a00000000000000000000000000000000000000000000000000000000000000 020c00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 853                 //
 854                 // 030012 - inbound read from peer id 0 of len 18
 855                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 856                 // 030074 - inbound read from peer id 0 of len 116
 857                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000320100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
 858                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
 859                 //
 860                 // 030012 - inbound read from peer id 0 of len 18
 861                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 862                 // 0300ff - inbound read from peer id 0 of len 255
 863                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e0000010000000000000003e8000000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 864                 // 0300ff - inbound read from peer id 0 of len 255
 865                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 866                 // 0300ff - inbound read from peer id 0 of len 255
 867                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 868                 // 0300ff - inbound read from peer id 0 of len 255
 869                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 870                 // 0300ff - inbound read from peer id 0 of len 255
 871                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 872                 // 0300c1 - inbound read from peer id 0 of len 193
 873                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 874                 //
 875                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 876                 //
 877                 // 030012 - inbound read from peer id 0 of len 18
 878                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
 879                 // 0300b4 - inbound read from peer id 0 of len 180
 880                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000a60100000000000000000000000000000000000000000000000000000000000000 0001 00000000000000000000000000000000000000000000000000000000000000b40500000000000000000000000000000000000000000000000000000000000006 03000000000000000000000000000000 - commitment_signed and mac
 881                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 882                 //
 883                 // 030012 - inbound read from peer id 0 of len 18
 884                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 885                 // 030073 - inbound read from peer id 0 of len 115
 886                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0d00000000000000000000000000000000000000000000000000000000000000 020f00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 887                 //
 888                 // 07 - process the now-pending HTLC forward
 889                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 890                 //
 891                 // 0c007d - connect a block with one transaction of len 125
 892                 // 02000000013a0000000000000000000000000000000000000000000000000000000000000000000000000000008002000100000000000022002093000000000000000000000000000000000000000000000000000000000000006cc1000000000000160014280000000000000000000000000000000000000005000020 - the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
 893                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 894                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 895                 // 0c005e - connect a block with one transaction of len 94
 896                 // 02000000018900000000000000000000000000000000000000000000000000000000000000000000000000000000014f00000000000000220020b20000000000000000000000000000000000000000000000000000000000000000000000 - the HTLC timeout transaction
 897                 // 0c0000 - connect a block with no transactions
 898                 // 0c0000 - connect a block with no transactions
 899                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 900                 // 0c0000 - connect a block with no transactions
 901                 // 0c0000 - connect a block with no transactions
 902                 // 0c0000 - connect a block with no transactions
 903                 //
 904                 // 07 - process the now-pending HTLC forward
 905                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 906
 907                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
 908                 super::do_test(&::hex::decode("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 909
 910                 let log_entries = logger.lines.lock().unwrap();
 911                 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
 912                 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
 913                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 3
 914                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 for channel 3a00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 4
 915                 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
 916                 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
 917                 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
 918                 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
 919                 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
 920                 assert_eq!(log_entries.get(&("lightning::chain::channelmonitor".to_string(), "Input spending counterparty commitment tx (0000000000000000000000000000000000000000000000000000000000000089:0) in 0000000000000000000000000000000000000000000000000000000000000074 resolves outbound HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 with timeout".to_string())), Some(&1)); // 10
 921         }
 922 }