_ 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
  23 use bitcoin::hashes::Hash as TraitImport;
  24 use bitcoin::hashes::HashEngine as TraitImportEngine;
  25 use bitcoin::hashes::sha256::Hash as Sha256;
  26 use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
  27
  28 use lightning::chain;
  29 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
  30 use lightning::chain::chainmonitor;
  31 use lightning::chain::transaction::OutPoint;
  32 use lightning::chain::keysinterface::{InMemoryChannelKeys, KeysInterface};
  33 use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage, PaymentSecret};
  34 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
  35 use lightning::routing::router::get_route;
  36 use lightning::routing::network_graph::NetGraphMsgHandler;
  37 use lightning::util::events::{EventsProvider,Event};
  38 use lightning::util::enforcing_trait_impls::EnforcingChannelKeys;
  39 use lightning::util::logger::Logger;
  40 use lightning::util::config::UserConfig;
  41
  42 use utils::test_logger;
  43
  44 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
  45 use bitcoin::secp256k1::Secp256k1;
  46
  47 use std::cell::RefCell;
  48 use std::collections::{HashMap, hash_map};
  49 use std::cmp;
  50 use std::sync::Arc;
  51 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
  52
  53 #[inline]
  54 pub fn slice_to_be16(v: &[u8]) -> u16 {
  55         ((v[0] as u16) << 8*1) |
  56         ((v[1] as u16) << 8*0)
  57 }
  58
  59 #[inline]
  60 pub fn slice_to_be24(v: &[u8]) -> u32 {
  61         ((v[0] as u32) << 8*2) |
  62         ((v[1] as u32) << 8*1) |
  63         ((v[2] as u32) << 8*0)
  64 }
  65
  66 #[inline]
  67 pub fn slice_to_be32(v: &[u8]) -> u32 {
  68         ((v[0] as u32) << 8*3) |
  69         ((v[1] as u32) << 8*2) |
  70         ((v[2] as u32) << 8*1) |
  71         ((v[3] as u32) << 8*0)
  72 }
  73
  74 #[inline]
  75 pub fn be64_to_array(u: u64) -> [u8; 8] {
  76         let mut v = [0; 8];
  77         v[0] = ((u >> 8*7) & 0xff) as u8;
  78         v[1] = ((u >> 8*6) & 0xff) as u8;
  79         v[2] = ((u >> 8*5) & 0xff) as u8;
  80         v[3] = ((u >> 8*4) & 0xff) as u8;
  81         v[4] = ((u >> 8*3) & 0xff) as u8;
  82         v[5] = ((u >> 8*2) & 0xff) as u8;
  83         v[6] = ((u >> 8*1) & 0xff) as u8;
  84         v[7] = ((u >> 8*0) & 0xff) as u8;
  85         v
  86 }
  87
  88 struct InputData {
  89         data: Vec<u8>,
  90         read_pos: AtomicUsize,
  91 }
  92 impl InputData {
  93         fn get_slice(&self, len: usize) -> Option<&[u8]> {
  94                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
  95                 if self.data.len() < old_pos + len {
  96                         return None;
  97                 }
  98                 Some(&self.data[old_pos..old_pos + len])
  99         }
 100 }
 101
 102 struct FuzzEstimator {
 103         input: Arc<InputData>,
 104 }
 105 impl FeeEstimator for FuzzEstimator {
 106         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u32 {
 107                 //TODO: We should actually be testing at least much more than 64k...
 108                 match self.input.get_slice(2) {
 109                         Some(slice) => cmp::max(slice_to_be16(slice) as u32, 253),
 110                         None => 253
 111                 }
 112         }
 113 }
 114
 115 struct TestBroadcaster {}
 116 impl BroadcasterInterface for TestBroadcaster {
 117         fn broadcast_transaction(&self, _tx: &Transaction) {}
 118 }
 119
 120 #[derive(Clone)]
 121 struct Peer<'a> {
 122         id: u8,
 123         peers_connected: &'a RefCell<[bool; 256]>,
 124 }
 125 impl<'a> SocketDescriptor for Peer<'a> {
 126         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
 127                 data.len()
 128         }
 129         fn disconnect_socket(&mut self) {
 130                 assert!(self.peers_connected.borrow()[self.id as usize]);
 131                 self.peers_connected.borrow_mut()[self.id as usize] = false;
 132         }
 133 }
 134 impl<'a> PartialEq for Peer<'a> {
 135         fn eq(&self, other: &Self) -> bool {
 136                 self.id == other.id
 137         }
 138 }
 139 impl<'a> Eq for Peer<'a> {}
 140 impl<'a> std::hash::Hash for Peer<'a> {
 141         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
 142                 self.id.hash(h)
 143         }
 144 }
 145
 146 type ChannelMan = ChannelManager<
 147         EnforcingChannelKeys,
 148         Arc<chainmonitor::ChainMonitor<EnforcingChannelKeys, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>>>,
 149         Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>;
 150 type PeerMan<'a> = PeerManager<Peer<'a>, Arc<ChannelMan>, Arc<NetGraphMsgHandler<Arc<dyn chain::Access>, Arc<dyn Logger>>>, Arc<dyn Logger>>;
 151
 152 struct MoneyLossDetector<'a> {
 153         manager: Arc<ChannelMan>,
 154         monitor: Arc<chainmonitor::ChainMonitor<EnforcingChannelKeys, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>>>,
 155         handler: PeerMan<'a>,
 156
 157         peers: &'a RefCell<[bool; 256]>,
 158         funding_txn: Vec<Transaction>,
 159         txids_confirmed: HashMap<Txid, usize>,
 160         header_hashes: Vec<BlockHash>,
 161         height: usize,
 162         max_height: usize,
 163         blocks_connected: u32,
 164 }
 165 impl<'a> MoneyLossDetector<'a> {
 166         pub fn new(peers: &'a RefCell<[bool; 256]>,
 167                    manager: Arc<ChannelMan>,
 168                    monitor: Arc<chainmonitor::ChainMonitor<EnforcingChannelKeys, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>>>,
 169                    handler: PeerMan<'a>) -> Self {
 170                 MoneyLossDetector {
 171                         manager,
 172                         monitor,
 173                         handler,
 174
 175                         peers,
 176                         funding_txn: Vec::new(),
 177                         txids_confirmed: HashMap::new(),
 178                         header_hashes: vec![Default::default()],
 179                         height: 0,
 180                         max_height: 0,
 181                         blocks_connected: 0,
 182                 }
 183         }
 184
 185         fn connect_block(&mut self, all_txn: &[Transaction]) {
 186                 let mut txdata = Vec::with_capacity(all_txn.len());
 187                 for (idx, tx) in all_txn.iter().enumerate() {
 188                         let txid = tx.txid();
 189                         match self.txids_confirmed.entry(txid) {
 190                                 hash_map::Entry::Vacant(e) => {
 191                                         e.insert(self.height);
 192                                         txdata.push((idx + 1, tx));
 193                                 },
 194                                 _ => {},
 195                         }
 196                 }
 197
 198                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
 199                 self.height += 1;
 200                 self.blocks_connected += 1;
 201                 self.manager.block_connected(&header, &txdata, self.height as u32);
 202                 (*self.monitor).block_connected(&header, &txdata, self.height as u32);
 203                 if self.header_hashes.len() > self.height {
 204                         self.header_hashes[self.height] = header.block_hash();
 205                 } else {
 206                         assert_eq!(self.header_hashes.len(), self.height);
 207                         self.header_hashes.push(header.block_hash());
 208                 }
 209                 self.max_height = cmp::max(self.height, self.max_height);
 210         }
 211
 212         fn disconnect_block(&mut self) {
 213                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 214                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
 215                         self.manager.block_disconnected(&header);
 216                         self.monitor.block_disconnected(&header, self.height as u32);
 217                         self.height -= 1;
 218                         let removal_height = self.height;
 219                         self.txids_confirmed.retain(|_, height| {
 220                                 removal_height != *height
 221                         });
 222                 }
 223         }
 224 }
 225
 226 impl<'a> Drop for MoneyLossDetector<'a> {
 227         fn drop(&mut self) {
 228                 if !::std::thread::panicking() {
 229                         // Disconnect all peers
 230                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 231                                 if *peer {
 232                                         self.handler.socket_disconnected(&Peer{id: idx as u8, peers_connected: &self.peers});
 233                                 }
 234                         }
 235
 236                         // Force all channels onto the chain (and time out claim txn)
 237                         self.manager.force_close_all_channels();
 238                 }
 239         }
 240 }
 241
 242 struct KeyProvider {
 243         node_secret: SecretKey,
 244         counter: AtomicU64,
 245 }
 246 impl KeysInterface for KeyProvider {
 247         type ChanKeySigner = EnforcingChannelKeys;
 248
 249         fn get_node_secret(&self) -> SecretKey {
 250                 self.node_secret.clone()
 251         }
 252
 253         fn get_destination_script(&self) -> Script {
 254                 let secp_ctx = Secp256k1::signing_only();
 255                 let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 256                 let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 257                 Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 258         }
 259
 260         fn get_shutdown_pubkey(&self) -> PublicKey {
 261                 let secp_ctx = Secp256k1::signing_only();
 262                 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, 0]).unwrap())
 263         }
 264
 265         fn get_channel_keys(&self, inbound: bool, channel_value_satoshis: u64) -> EnforcingChannelKeys {
 266                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
 267                 let secp_ctx = Secp256k1::signing_only();
 268                 EnforcingChannelKeys::new(if inbound {
 269                         InMemoryChannelKeys::new(
 270                                 &secp_ctx,
 271                                 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(),
 272                                 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(),
 273                                 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(),
 274                                 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(),
 275                                 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(),
 276                                 [0, 0, 0, 0, 0, 0, 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],
 277                                 channel_value_satoshis,
 278                                 (0, 0),
 279                         )
 280                 } else {
 281                         InMemoryChannelKeys::new(
 282                                 &secp_ctx,
 283                                 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(),
 284                                 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(),
 285                                 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(),
 286                                 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(),
 287                                 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(),
 288                                 [0, 0, 0, 0, 0, 0, 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],
 289                                 channel_value_satoshis,
 290                                 (0, 0),
 291                         )
 292                 })
 293         }
 294
 295         fn get_secure_random_bytes(&self) -> [u8; 32] {
 296                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 297                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 298                 (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]
 299         }
 300 }
 301
 302 #[inline]
 303 pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 304         let input = Arc::new(InputData {
 305                 data: data.to_vec(),
 306                 read_pos: AtomicUsize::new(0),
 307         });
 308         let fee_est = Arc::new(FuzzEstimator {
 309                 input: input.clone(),
 310         });
 311
 312         macro_rules! get_slice {
 313                 ($len: expr) => {
 314                         match input.get_slice($len as usize) {
 315                                 Some(slice) => slice,
 316                                 None => return,
 317                         }
 318                 }
 319         }
 320
 321         macro_rules! get_pubkey {
 322                 () => {
 323                         match PublicKey::from_slice(get_slice!(33)) {
 324                                 Ok(key) => key,
 325                                 Err(_) => return,
 326                         }
 327                 }
 328         }
 329
 330         let our_network_key = match SecretKey::from_slice(get_slice!(32)) {
 331                 Ok(key) => key,
 332                 Err(_) => return,
 333         };
 334
 335         let broadcast = Arc::new(TestBroadcaster{});
 336         let monitor = Arc::new(chainmonitor::ChainMonitor::new(None, broadcast.clone(), Arc::clone(&logger), fee_est.clone()));
 337
 338         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone(), counter: AtomicU64::new(0) });
 339         let mut config = UserConfig::default();
 340         config.channel_options.fee_proportional_millionths =  slice_to_be32(get_slice!(4));
 341         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
 342         config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
 343         let channelmanager = Arc::new(ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, 0));
 344         let our_id = PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret());
 345         let net_graph_msg_handler = Arc::new(NetGraphMsgHandler::new(None, Arc::clone(&logger)));
 346
 347         let peers = RefCell::new([false; 256]);
 348         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 349                 chan_handler: channelmanager.clone(),
 350                 route_handler: net_graph_msg_handler.clone(),
 351         }, 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)));
 352
 353         let mut should_forward = false;
 354         let mut payments_received: Vec<(PaymentHash, Option<PaymentSecret>, u64)> = Vec::new();
 355         let mut payments_sent = 0;
 356         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
 357         let mut pending_funding_signatures = HashMap::new();
 358         let mut pending_funding_relay = Vec::new();
 359
 360         loop {
 361                 match get_slice!(1)[0] {
 362                         0 => {
 363                                 let mut new_id = 0;
 364                                 for i in 1..256 {
 365                                         if !peers.borrow()[i-1] {
 366                                                 new_id = i;
 367                                                 break;
 368                                         }
 369                                 }
 370                                 if new_id == 0 { return; }
 371                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 372                                 peers.borrow_mut()[new_id - 1] = true;
 373                         },
 374                         1 => {
 375                                 let mut new_id = 0;
 376                                 for i in 1..256 {
 377                                         if !peers.borrow()[i-1] {
 378                                                 new_id = i;
 379                                                 break;
 380                                         }
 381                                 }
 382                                 if new_id == 0 { return; }
 383                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 384                                 peers.borrow_mut()[new_id - 1] = true;
 385                         },
 386                         2 => {
 387                                 let peer_id = get_slice!(1)[0];
 388                                 if !peers.borrow()[peer_id as usize] { return; }
 389                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
 390                                 peers.borrow_mut()[peer_id as usize] = false;
 391                         },
 392                         3 => {
 393                                 let peer_id = get_slice!(1)[0];
 394                                 if !peers.borrow()[peer_id as usize] { return; }
 395                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
 396                                         Ok(res) => assert!(!res),
 397                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 398                                 }
 399                         },
 400                         4 => {
 401                                 let value = slice_to_be24(get_slice!(3)) as u64;
 402                                 let route = match get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &get_pubkey!(), None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 403                                         Ok(route) => route,
 404                                         Err(_) => return,
 405                                 };
 406                                 let mut payment_hash = PaymentHash([0; 32]);
 407                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 408                                 let mut sha = Sha256::engine();
 409                                 sha.input(&payment_hash.0[..]);
 410                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 411                                 payments_sent += 1;
 412                                 match channelmanager.send_payment(&route, payment_hash, &None) {
 413                                         Ok(_) => {},
 414                                         Err(_) => return,
 415                                 }
 416                         },
 417                         15 => {
 418                                 let value = slice_to_be24(get_slice!(3)) as u64;
 419                                 let mut route = match get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &get_pubkey!(), None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 420                                         Ok(route) => route,
 421                                         Err(_) => return,
 422                                 };
 423                                 route.paths.push(route.paths[0].clone());
 424                                 let mut payment_hash = PaymentHash([0; 32]);
 425                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 426                                 let mut sha = Sha256::engine();
 427                                 sha.input(&payment_hash.0[..]);
 428                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 429                                 payments_sent += 1;
 430                                 let mut payment_secret = PaymentSecret([0; 32]);
 431                                 payment_secret.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 432                                 payments_sent += 1;
 433                                 match channelmanager.send_payment(&route, payment_hash, &Some(payment_secret)) {
 434                                         Ok(_) => {},
 435                                         Err(_) => return,
 436                                 }
 437                         },
 438                         5 => {
 439                                 let peer_id = get_slice!(1)[0];
 440                                 if !peers.borrow()[peer_id as usize] { return; }
 441                                 let their_key = get_pubkey!();
 442                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 443                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 444                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None).is_err() { return; }
 445                         },
 446                         6 => {
 447                                 let mut channels = channelmanager.list_channels();
 448                                 let channel_id = get_slice!(1)[0] as usize;
 449                                 if channel_id >= channels.len() { return; }
 450                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 451                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
 452                         },
 453                         7 => {
 454                                 if should_forward {
 455                                         channelmanager.process_pending_htlc_forwards();
 456                                         should_forward = false;
 457                                 }
 458                         },
 459                         8 => {
 460                                 for (payment, payment_secret, amt) in payments_received.drain(..) {
 461                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 462                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 463                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 464                                         // place that anywhere in our preimage.
 465                                         if &payment.0[1..] != &[0; 31] {
 466                                                 channelmanager.fail_htlc_backwards(&payment, &payment_secret);
 467                                         } else {
 468                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 469                                                 payment_preimage.0[0] = payment.0[0];
 470                                                 channelmanager.claim_funds(payment_preimage, &payment_secret, amt);
 471                                         }
 472                                 }
 473                         },
 474                         9 => {
 475                                 for (payment, payment_secret, _) in payments_received.drain(..) {
 476                                         channelmanager.fail_htlc_backwards(&payment, &payment_secret);
 477                                 }
 478                         },
 479                         10 => {
 480                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
 481                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
 482                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
 483                                                 }] };
 484                                         let funding_output = 'search_loop: loop {
 485                                                 let funding_txid = tx.txid();
 486                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
 487                                                         let outpoint = OutPoint { txid: funding_txid, index: 0 };
 488                                                         for chan in channelmanager.list_channels() {
 489                                                                 if chan.channel_id == outpoint.to_channel_id() {
 490                                                                         tx.version += 1;
 491                                                                         continue 'search_loop;
 492                                                                 }
 493                                                         }
 494                                                         break outpoint;
 495                                                 }
 496                                                 tx.version += 1;
 497                                                 if tx.version > 0xff {
 498                                                         continue 'outer_loop;
 499                                                 }
 500                                         };
 501                                         channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
 502                                         pending_funding_signatures.insert(funding_output, tx);
 503                                 }
 504                         },
 505                         11 => {
 506                                 if !pending_funding_relay.is_empty() {
 507                                         loss_detector.connect_block(&pending_funding_relay[..]);
 508                                         for _ in 2..100 {
 509                                                 loss_detector.connect_block(&[]);
 510                                         }
 511                                 }
 512                                 for tx in pending_funding_relay.drain(..) {
 513                                         loss_detector.funding_txn.push(tx);
 514                                 }
 515                         },
 516                         12 => {
 517                                 let txlen = slice_to_be16(get_slice!(2));
 518                                 if txlen == 0 {
 519                                         loss_detector.connect_block(&[]);
 520                                 } else {
 521                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 522                                         if let Ok(tx) = txres {
 523                                                 let mut output_val = 0;
 524                                                 for out in tx.output.iter() {
 525                                                         if out.value > 21_000_000_0000_0000 { return; }
 526                                                         output_val += out.value;
 527                                                         if output_val > 21_000_000_0000_0000 { return; }
 528                                                 }
 529                                                 loss_detector.connect_block(&[tx]);
 530                                         } else {
 531                                                 return;
 532                                         }
 533                                 }
 534                         },
 535                         13 => {
 536                                 loss_detector.disconnect_block();
 537                         },
 538                         14 => {
 539                                 let mut channels = channelmanager.list_channels();
 540                                 let channel_id = get_slice!(1)[0] as usize;
 541                                 if channel_id >= channels.len() { return; }
 542                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 543                                 channelmanager.force_close_channel(&channels[channel_id].channel_id);
 544                         },
 545                         // 15 is above
 546                         _ => return,
 547                 }
 548                 loss_detector.handler.process_events();
 549                 for event in loss_detector.manager.get_and_clear_pending_events() {
 550                         match event {
 551                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
 552                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
 553                                 },
 554                                 Event::FundingBroadcastSafe { funding_txo, .. } => {
 555                                         pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
 556                                 },
 557                                 Event::PaymentReceived { payment_hash, payment_secret, amt } => {
 558                                         //TODO: enhance by fetching random amounts from fuzz input?
 559                                         payments_received.push((payment_hash, payment_secret, amt));
 560                                 },
 561                                 Event::PaymentSent {..} => {},
 562                                 Event::PaymentFailed {..} => {},
 563                                 Event::PendingHTLCsForwardable {..} => {
 564                                         should_forward = true;
 565                                 },
 566                                 Event::SpendableOutputs {..} => {},
 567                         }
 568                 }
 569         }
 570 }
 571
 572 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 573         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 574         do_test(data, &logger);
 575 }
 576
 577 #[no_mangle]
 578 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
 579         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
 580         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
 581 }
 582
 583 #[cfg(test)]
 584 mod tests {
 585         use lightning::util::logger::{Logger, Record};
 586         use std::collections::HashMap;
 587         use std::sync::{Arc, Mutex};
 588
 589         struct TrackingLogger {
 590                 /// (module, message) -> count
 591                 pub lines: Mutex<HashMap<(String, String), usize>>,
 592         }
 593         impl Logger for TrackingLogger {
 594                 fn log(&self, record: &Record) {
 595                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 596                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 597                 }
 598         }
 599
 600         #[test]
 601         fn test_no_existing_test_breakage() {
 602                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 603                 // changes (such as requesting feerate info in a new place), we run a pretty full
 604                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 605                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 606                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 607
 608                 // What each byte represents is broken down below, and then everything is concatenated into
 609                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
 610
 611                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
 612                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
 613                 // of the Lightning message
 614                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
 615                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
 616
 617                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
 618
 619                 // 0000000000000000000000000000000000000000000000000000000000000000 - our network key
 620                 // 00000000 - fee_proportional_millionths
 621                 // 01 - announce_channels_publicly
 622                 //
 623                 // 00 - new outbound connection with id 0
 624                 // 030000000000000000000000000000000000000000000000000000000000000000 - peer's pubkey
 625                 // 030032 - inbound read from peer id 0 of len 50
 626                 // 00 030000000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
 627                 //
 628                 // 030012 - inbound read from peer id 0 of len 18
 629                 // 000a 03000000000000000000000000000000 - message header indicating message length 10
 630                 // 03001a - inbound read from peer id 0 of len 26
 631                 // 0010 00022000 00022000 03000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 632                 //
 633                 // 030012 - inbound read from peer id 0 of len 18
 634                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
 635                 // 0300fe - inbound read from peer id 0 of len 254
 636                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000222 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
 637                 // 030053 - inbound read from peer id 0 of len 83
 638                 // 030000000000000000000000000000000000000000000000000000000000000005 030000000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
 639                 //
 640                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 641                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 642                 //
 643                 // 030012 - inbound read from peer id 0 of len 18
 644                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
 645                 // 030094 - inbound read from peer id 0 of len 148
 646                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 20000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 03000000000000000000000000000000 - funding_created and mac
 647                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 648                 //
 649                 // 0c005e - connect a block with one transaction of len 94
 650                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 651                 // 0c0000 - connect a block with no transactions
 652                 // 0c0000 - connect a block with no transactions
 653                 // 0c0000 - connect a block with no transactions
 654                 // 0c0000 - connect a block with no transactions
 655                 // 0c0000 - connect a block with no transactions
 656                 // 0c0000 - connect a block with no transactions
 657                 // 0c0000 - connect a block with no transactions
 658                 // 0c0000 - connect a block with no transactions
 659                 // 0c0000 - connect a block with no transactions
 660                 // 0c0000 - connect a block with no transactions
 661                 // 0c0000 - connect a block with no transactions
 662                 // 0c0000 - connect a block with no transactions
 663                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
 664                 //
 665                 // 030012 - inbound read from peer id 0 of len 18
 666                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
 667                 // 030053 - inbound read from peer id 0 of len 83
 668                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
 669                 //
 670                 // 01 - new inbound connection with id 1
 671                 // 030132 - inbound read from peer id 1 of len 50
 672                 // 0003000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000 - inbound noise act 1
 673                 // 030142 - inbound read from peer id 1 of len 66
 674                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
 675                 //
 676                 // 030112 - inbound read from peer id 1 of len 18
 677                 // 000a 01000000000000000000000000000000 - message header indicating message length 10
 678                 // 03011a - inbound read from peer id 1 of len 26
 679                 // 0010 00022000 00022000 01000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 680                 //
 681                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
 682                 // 00fd00fd - Two feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
 683                 //
 684                 // 030112 - inbound read from peer id 1 of len 18
 685                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
 686                 // 0301ff - inbound read from peer id 1 of len 255
 687                 // 0021 0000000000000000000000000000000000000000000000000000000000000e02 000000000000001a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 03000000000000000000000000000000 - beginning of accept_channel
 688                 // 030121 - inbound read from peer id 1 of len 33
 689                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
 690                 //
 691                 // 0a - create the funding transaction (client should send funding_created now)
 692                 //
 693                 // 030112 - inbound read from peer id 1 of len 18
 694                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
 695                 // 030172 - inbound read from peer id 1 of len 114
 696                 // 0023 3900000000000000000000000000000000000000000000000000000000000000 f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 01000000000000000000000000000000 - funding_signed message and mac
 697                 //
 698                 // 0b - broadcast funding transaction
 699                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
 700                 //
 701                 // 030112 - inbound read from peer id 1 of len 18
 702                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
 703                 // 030153 - inbound read from peer id 1 of len 83
 704                 // 0024 3900000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
 705                 //
 706                 // 030012 - inbound read from peer id 0 of len 18
 707                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 708                 // 0300ff - inbound read from peer id 0 of len 255
 709                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e80000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 710                 // 0300ff - inbound read from peer id 0 of len 255
 711                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 712                 // 0300ff - inbound read from peer id 0 of len 255
 713                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 714                 // 0300ff - inbound read from peer id 0 of len 255
 715                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 716                 // 0300ff - inbound read from peer id 0 of len 255
 717                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 718                 // 0300c1 - inbound read from peer id 0 of len 193
 719                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 720                 //
 721                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 722                 //
 723                 // 030012 - inbound read from peer id 0 of len 18
 724                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 725                 // 030074 - inbound read from peer id 0 of len 116
 726                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 31000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 727                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
 728                 //
 729                 // 030012 - inbound read from peer id 0 of len 18
 730                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 731                 // 030073 - inbound read from peer id 0 of len 115
 732                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 733                 //
 734                 // 07 - process the now-pending HTLC forward
 735                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
 736                 //
 737                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
 738                 // 030112 - inbound read from peer id 1 of len 18
 739                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 740                 // 030174 - inbound read from peer id 1 of len 116
 741                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 f1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 742                 //
 743                 // 030112 - inbound read from peer id 1 of len 18
 744                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 745                 // 030173 - inbound read from peer id 1 of len 115
 746                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 747                 //
 748                 // 030112 - inbound read from peer id 1 of len 18
 749                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
 750                 // 03015a - inbound read from peer id 1 of len 90
 751                 // 0082 3900000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
 752                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
 753                 //
 754                 // 030112 - inbound read from peer id 1 of len 18
 755                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 756                 // 030174 - inbound read from peer id 1 of len 116
 757                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 758                 //
 759                 // 030112 - inbound read from peer id 1 of len 18
 760                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 761                 // 030173 - inbound read from peer id 1 of len 115
 762                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 763                 //
 764                 // - before responding to the commitment_signed generated above, send a new HTLC
 765                 // 030012 - inbound read from peer id 0 of len 18
 766                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 767                 // 0300ff - inbound read from peer id 0 of len 255
 768                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e80000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 769                 // 0300ff - inbound read from peer id 0 of len 255
 770                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 771                 // 0300ff - inbound read from peer id 0 of len 255
 772                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 773                 // 0300ff - inbound read from peer id 0 of len 255
 774                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 775                 // 0300ff - inbound read from peer id 0 of len 255
 776                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 777                 // 0300c1 - inbound read from peer id 0 of len 193
 778                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 779                 //
 780                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 781                 //
 782                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
 783                 // 030012 - inbound read from peer id 0 of len 18
 784                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 785                 // 030073 - inbound read from peer id 0 of len 115
 786                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 787                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 788                 //
 789                 // 030012 - inbound read from peer id 0 of len 18
 790                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 791                 // 030074 - inbound read from peer id 0 of len 116
 792                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 c2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 793                 //
 794                 // 030012 - inbound read from peer id 0 of len 18
 795                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 796                 // 030073 - inbound read from peer id 0 of len 115
 797                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 798                 //
 799                 // 07 - process the now-pending HTLC forward
 800                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 801                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
 802                 //
 803                 // 030112 - inbound read from peer id 1 of len 18
 804                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 805                 // 030174 - inbound read from peer id 1 of len 116
 806                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 807                 //
 808                 // 030112 - inbound read from peer id 1 of len 18
 809                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 810                 // 030173 - inbound read from peer id 1 of len 115
 811                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 812                 //
 813                 // 030112 - inbound read from peer id 1 of len 18
 814                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
 815                 // 03013c - inbound read from peer id 1 of len 60
 816                 // 0083 3900000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
 817                 //
 818                 // 030112 - inbound read from peer id 1 of len 18
 819                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 820                 // 030174 - inbound read from peer id 1 of len 116
 821                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 822                 //
 823                 // 030112 - inbound read from peer id 1 of len 18
 824                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 825                 // 030173 - inbound read from peer id 1 of len 115
 826                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 827                 //
 828                 // 07 - process the now-pending HTLC forward
 829                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
 830                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
 831                 //
 832                 // 030012 - inbound read from peer id 0 of len 18
 833                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 834                 // 030073 - inbound read from peer id 0 of len 115
 835                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 836                 //
 837                 // 030012 - inbound read from peer id 0 of len 18
 838                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 839                 // 030074 - inbound read from peer id 0 of len 116
 840                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 33000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 841                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
 842                 //
 843                 // 030012 - inbound read from peer id 0 of len 18
 844                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 845                 // 0300ff - inbound read from peer id 0 of len 255
 846                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e0000010000000000000003e8000000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 847                 // 0300ff - inbound read from peer id 0 of len 255
 848                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 849                 // 0300ff - inbound read from peer id 0 of len 255
 850                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 851                 // 0300ff - inbound read from peer id 0 of len 255
 852                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 853                 // 0300ff - inbound read from peer id 0 of len 255
 854                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 855                 // 0300c1 - inbound read from peer id 0 of len 193
 856                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 857                 //
 858                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 859                 //
 860                 // 030012 - inbound read from peer id 0 of len 18
 861                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
 862                 // 0300b4 - inbound read from peer id 0 of len 180
 863                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 7b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0001 c8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f00000000000000 03000000000000000000000000000000 - commitment_signed and mac
 864                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 865                 //
 866                 // 030012 - inbound read from peer id 0 of len 18
 867                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 868                 // 030073 - inbound read from peer id 0 of len 115
 869                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0400000000000000000000000000000000000000000000000000000000000000 030600000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 870                 //
 871                 // 07 - process the now-pending HTLC forward
 872                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 873                 //
 874                 // 0c007d - connect a block with one transaction of len 125
 875                 // 02000000013900000000000000000000000000000000000000000000000000000000000000000000000000000080020001000000000000220020bb000000000000000000000000000000000000000000000000000000000000006cc10000000000001600142b0000000000000000000000000000000000000005000020 - the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
 876                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 877                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 878                 // 0c005e - connect a block with one transaction of len 94
 879                 // 0200000001a100000000000000000000000000000000000000000000000000000000000000000000000000000000014f00000000000000220020f60000000000000000000000000000000000000000000000000000000000000000000000 - the HTLC timeout transaction
 880                 // 0c0000 - connect a block with no transactions
 881                 // 0c0000 - connect a block with no transactions
 882                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 883                 // 0c0000 - connect a block with no transactions
 884                 // 0c0000 - connect a block with no transactions
 885                 // 0c0000 - connect a block with no transactions
 886                 //
 887                 // 07 - process the now-pending HTLC forward
 888                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 889
 890                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
 891                 super::do_test(&::hex::decode("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 892
 893                 let log_entries = logger.lines.lock().unwrap();
 894                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendAcceptChannel event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679".to_string())), Some(&1)); // 1
 895                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingSigned event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 2
 896                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 3
 897                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 for channel 3900000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 4
 898                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendRevokeAndACK event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&4)); // 5
 899                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 with 0 adds, 0 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 6
 900                 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 3900000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 7
 901                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 with 0 adds, 1 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 8
 902                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 with 0 adds, 0 fulfills, 1 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&2)); // 9
 903                 assert_eq!(log_entries.get(&("lightning::chain::channelmonitor".to_string(), "Input spending counterparty commitment tx (00000000000000000000000000000000000000000000000000000000000000a1:0) in 0000000000000000000000000000000000000000000000000000000000000018 resolves outbound HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 with timeout".to_string())), Some(&1)); // 10
 904         }
 905 }