_ Git - rust-lightning/blob - fuzz/src/full_stack.rs

   1 //! Test that no series of bytes received over the wire/connections created/payments sent can
   2 //! result in a crash. We do this by standing up a node and then reading bytes from input to denote
   3 //! actions such as creating new inbound/outbound connections, bytes to be read from a connection,
   4 //! or payments to send/ways to handle events generated.
   5 //! This test has been very useful, though due to its complexity good starting inputs are critical.
   6
   7 use bitcoin::blockdata::block::BlockHeader;
   8 use bitcoin::blockdata::transaction::{Transaction, TxOut};
   9 use bitcoin::blockdata::script::{Builder, Script};
  10 use bitcoin::blockdata::opcodes;
  11 use bitcoin::consensus::encode::deserialize;
  12 use bitcoin::network::constants::Network;
  13 use bitcoin::util::hash::BitcoinHash;
  14
  15 use bitcoin::hashes::Hash as TraitImport;
  16 use bitcoin::hashes::HashEngine as TraitImportEngine;
  17 use bitcoin::hashes::sha256::Hash as Sha256;
  18 use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
  19
  20 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
  21 use lightning::chain::transaction::OutPoint;
  22 use lightning::chain::keysinterface::{InMemoryChannelKeys, KeysInterface};
  23 use lightning::ln::channelmonitor;
  24 use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage, PaymentSecret};
  25 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
  26 use lightning::routing::router::get_route;
  27 use lightning::routing::network_graph::NetGraphMsgHandler;
  28 use lightning::util::events::{EventsProvider,Event};
  29 use lightning::util::enforcing_trait_impls::EnforcingChannelKeys;
  30 use lightning::util::logger::Logger;
  31 use lightning::util::config::UserConfig;
  32
  33 use utils::test_logger;
  34
  35 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
  36 use bitcoin::secp256k1::Secp256k1;
  37
  38 use std::cell::RefCell;
  39 use std::collections::{HashMap, hash_map};
  40 use std::cmp;
  41 use std::sync::Arc;
  42 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
  43
  44 #[inline]
  45 pub fn slice_to_be16(v: &[u8]) -> u16 {
  46         ((v[0] as u16) << 8*1) |
  47         ((v[1] as u16) << 8*0)
  48 }
  49
  50 #[inline]
  51 pub fn slice_to_be24(v: &[u8]) -> u32 {
  52         ((v[0] as u32) << 8*2) |
  53         ((v[1] as u32) << 8*1) |
  54         ((v[2] as u32) << 8*0)
  55 }
  56
  57 #[inline]
  58 pub fn slice_to_be32(v: &[u8]) -> u32 {
  59         ((v[0] as u32) << 8*3) |
  60         ((v[1] as u32) << 8*2) |
  61         ((v[2] as u32) << 8*1) |
  62         ((v[3] as u32) << 8*0)
  63 }
  64
  65 #[inline]
  66 pub fn be64_to_array(u: u64) -> [u8; 8] {
  67         let mut v = [0; 8];
  68         v[0] = ((u >> 8*7) & 0xff) as u8;
  69         v[1] = ((u >> 8*6) & 0xff) as u8;
  70         v[2] = ((u >> 8*5) & 0xff) as u8;
  71         v[3] = ((u >> 8*4) & 0xff) as u8;
  72         v[4] = ((u >> 8*3) & 0xff) as u8;
  73         v[5] = ((u >> 8*2) & 0xff) as u8;
  74         v[6] = ((u >> 8*1) & 0xff) as u8;
  75         v[7] = ((u >> 8*0) & 0xff) as u8;
  76         v
  77 }
  78
  79 struct InputData {
  80         data: Vec<u8>,
  81         read_pos: AtomicUsize,
  82 }
  83 impl InputData {
  84         fn get_slice(&self, len: usize) -> Option<&[u8]> {
  85                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
  86                 if self.data.len() < old_pos + len {
  87                         return None;
  88                 }
  89                 Some(&self.data[old_pos..old_pos + len])
  90         }
  91 }
  92
  93 struct FuzzEstimator {
  94         input: Arc<InputData>,
  95 }
  96 impl FeeEstimator for FuzzEstimator {
  97         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
  98                 //TODO: We should actually be testing at least much more than 64k...
  99                 match self.input.get_slice(2) {
 100                         Some(slice) => cmp::max(slice_to_be16(slice) as u64, 253),
 101                         None => 253
 102                 }
 103         }
 104 }
 105
 106 struct TestBroadcaster {}
 107 impl BroadcasterInterface for TestBroadcaster {
 108         fn broadcast_transaction(&self, _tx: &Transaction) {}
 109 }
 110
 111 #[derive(Clone)]
 112 struct Peer<'a> {
 113         id: u8,
 114         peers_connected: &'a RefCell<[bool; 256]>,
 115 }
 116 impl<'a> SocketDescriptor for Peer<'a> {
 117         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
 118                 data.len()
 119         }
 120         fn disconnect_socket(&mut self) {
 121                 assert!(self.peers_connected.borrow()[self.id as usize]);
 122                 self.peers_connected.borrow_mut()[self.id as usize] = false;
 123         }
 124 }
 125 impl<'a> PartialEq for Peer<'a> {
 126         fn eq(&self, other: &Self) -> bool {
 127                 self.id == other.id
 128         }
 129 }
 130 impl<'a> Eq for Peer<'a> {}
 131 impl<'a> std::hash::Hash for Peer<'a> {
 132         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
 133                 self.id.hash(h)
 134         }
 135 }
 136
 137 struct MoneyLossDetector<'a> {
 138         manager: Arc<ChannelManager<EnforcingChannelKeys, Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<ChainWatchInterfaceUtil>>>, Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>>,
 139         monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<ChainWatchInterfaceUtil>>>,
 140         handler: PeerManager<Peer<'a>, Arc<ChannelManager<EnforcingChannelKeys, Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<ChainWatchInterfaceUtil>>>, Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>>, Arc<dyn Logger>>,
 141
 142         peers: &'a RefCell<[bool; 256]>,
 143         funding_txn: Vec<Transaction>,
 144         txids_confirmed: HashMap<Txid, usize>,
 145         header_hashes: Vec<BlockHash>,
 146         height: usize,
 147         max_height: usize,
 148         blocks_connected: u32,
 149 }
 150 impl<'a> MoneyLossDetector<'a> {
 151         pub fn new(peers: &'a RefCell<[bool; 256]>,
 152                    manager: Arc<ChannelManager<EnforcingChannelKeys, Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<ChainWatchInterfaceUtil>>>, Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>>,
 153                    monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<ChainWatchInterfaceUtil>>>,
 154                    handler: PeerManager<Peer<'a>, Arc<ChannelManager<EnforcingChannelKeys, Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint, EnforcingChannelKeys, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<ChainWatchInterfaceUtil>>>, Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>>, Arc<dyn Logger>>) -> Self {
 155                 MoneyLossDetector {
 156                         manager,
 157                         monitor,
 158                         handler,
 159
 160                         peers,
 161                         funding_txn: Vec::new(),
 162                         txids_confirmed: HashMap::new(),
 163                         header_hashes: vec![Default::default()],
 164                         height: 0,
 165                         max_height: 0,
 166                         blocks_connected: 0,
 167                 }
 168         }
 169
 170         fn connect_block(&mut self, all_txn: &[Transaction]) {
 171                 let mut txn = Vec::with_capacity(all_txn.len());
 172                 let mut txn_idxs = Vec::with_capacity(all_txn.len());
 173                 for (idx, tx) in all_txn.iter().enumerate() {
 174                         let txid = tx.txid();
 175                         match self.txids_confirmed.entry(txid) {
 176                                 hash_map::Entry::Vacant(e) => {
 177                                         e.insert(self.height);
 178                                         txn.push(tx);
 179                                         txn_idxs.push(idx as u32 + 1);
 180                                 },
 181                                 _ => {},
 182                         }
 183                 }
 184
 185                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
 186                 self.height += 1;
 187                 self.blocks_connected += 1;
 188                 self.manager.block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
 189                 (*self.monitor).block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
 190                 if self.header_hashes.len() > self.height {
 191                         self.header_hashes[self.height] = header.bitcoin_hash();
 192                 } else {
 193                         assert_eq!(self.header_hashes.len(), self.height);
 194                         self.header_hashes.push(header.bitcoin_hash());
 195                 }
 196                 self.max_height = cmp::max(self.height, self.max_height);
 197         }
 198
 199         fn disconnect_block(&mut self) {
 200                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 201                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
 202                         self.manager.block_disconnected(&header, self.height as u32);
 203                         self.monitor.block_disconnected(&header, self.height as u32);
 204                         self.height -= 1;
 205                         let removal_height = self.height;
 206                         self.txids_confirmed.retain(|_, height| {
 207                                 removal_height != *height
 208                         });
 209                 }
 210         }
 211 }
 212
 213 impl<'a> Drop for MoneyLossDetector<'a> {
 214         fn drop(&mut self) {
 215                 if !::std::thread::panicking() {
 216                         // Disconnect all peers
 217                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 218                                 if *peer {
 219                                         self.handler.socket_disconnected(&Peer{id: idx as u8, peers_connected: &self.peers});
 220                                 }
 221                         }
 222
 223                         // Force all channels onto the chain (and time out claim txn)
 224                         self.manager.force_close_all_channels();
 225                         for _ in 0..6*24*14 {
 226                                 self.connect_block(&[]);
 227                         }
 228                 }
 229         }
 230 }
 231
 232 struct KeyProvider {
 233         node_secret: SecretKey,
 234         counter: AtomicU64,
 235 }
 236 impl KeysInterface for KeyProvider {
 237         type ChanKeySigner = EnforcingChannelKeys;
 238
 239         fn get_node_secret(&self) -> SecretKey {
 240                 self.node_secret.clone()
 241         }
 242
 243         fn get_destination_script(&self) -> Script {
 244                 let secp_ctx = Secp256k1::signing_only();
 245                 let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 246                 let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 247                 Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 248         }
 249
 250         fn get_shutdown_pubkey(&self) -> PublicKey {
 251                 let secp_ctx = Secp256k1::signing_only();
 252                 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())
 253         }
 254
 255         fn get_channel_keys(&self, inbound: bool, channel_value_satoshis: u64) -> EnforcingChannelKeys {
 256                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
 257                 let secp_ctx = Secp256k1::signing_only();
 258                 EnforcingChannelKeys::new(if inbound {
 259                         InMemoryChannelKeys::new(
 260                                 &secp_ctx,
 261                                 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(),
 262                                 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(),
 263                                 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(),
 264                                 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(),
 265                                 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(),
 266                                 [0, 0, 0, 0, 0, 0, 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],
 267                                 channel_value_satoshis,
 268                         )
 269                 } else {
 270                         InMemoryChannelKeys::new(
 271                                 &secp_ctx,
 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, 7, 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, 8, 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, 9, 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, 10, ctr]).unwrap(),
 276                                 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(),
 277                                 [0, 0, 0, 0, 0, 0, 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],
 278                                 channel_value_satoshis,
 279                         )
 280                 })
 281         }
 282
 283         fn get_onion_rand(&self) -> (SecretKey, [u8; 32]) {
 284                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
 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, 13, ctr]).unwrap(),
 286                 [0; 32])
 287         }
 288
 289         fn get_channel_id(&self) -> [u8; 32] {
 290                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 291                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 292                 (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]
 293         }
 294 }
 295
 296 #[inline]
 297 pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 298         let input = Arc::new(InputData {
 299                 data: data.to_vec(),
 300                 read_pos: AtomicUsize::new(0),
 301         });
 302         let fee_est = Arc::new(FuzzEstimator {
 303                 input: input.clone(),
 304         });
 305
 306         macro_rules! get_slice {
 307                 ($len: expr) => {
 308                         match input.get_slice($len as usize) {
 309                                 Some(slice) => slice,
 310                                 None => return,
 311                         }
 312                 }
 313         }
 314
 315         macro_rules! get_pubkey {
 316                 () => {
 317                         match PublicKey::from_slice(get_slice!(33)) {
 318                                 Ok(key) => key,
 319                                 Err(_) => return,
 320                         }
 321                 }
 322         }
 323
 324         let our_network_key = match SecretKey::from_slice(get_slice!(32)) {
 325                 Ok(key) => key,
 326                 Err(_) => return,
 327         };
 328
 329         let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin));
 330         let broadcast = Arc::new(TestBroadcaster{});
 331         let monitor = Arc::new(channelmonitor::SimpleManyChannelMonitor::new(watch.clone(), broadcast.clone(), Arc::clone(&logger), fee_est.clone()));
 332
 333         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone(), counter: AtomicU64::new(0) });
 334         let mut config = UserConfig::default();
 335         config.channel_options.fee_proportional_millionths =  slice_to_be32(get_slice!(4));
 336         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
 337         config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
 338         let channelmanager = Arc::new(ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, 0).unwrap());
 339         let our_id = PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret());
 340         let net_graph_msg_handler = Arc::new(NetGraphMsgHandler::new(watch.clone(), Arc::clone(&logger)));
 341
 342         let peers = RefCell::new([false; 256]);
 343         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 344                 chan_handler: channelmanager.clone(),
 345                 route_handler: net_graph_msg_handler.clone(),
 346         }, 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)));
 347
 348         let mut should_forward = false;
 349         let mut payments_received: Vec<(PaymentHash, Option<PaymentSecret>, u64)> = Vec::new();
 350         let mut payments_sent = 0;
 351         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
 352         let mut pending_funding_signatures = HashMap::new();
 353         let mut pending_funding_relay = Vec::new();
 354
 355         loop {
 356                 match get_slice!(1)[0] {
 357                         0 => {
 358                                 let mut new_id = 0;
 359                                 for i in 1..256 {
 360                                         if !peers.borrow()[i-1] {
 361                                                 new_id = i;
 362                                                 break;
 363                                         }
 364                                 }
 365                                 if new_id == 0 { return; }
 366                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 367                                 peers.borrow_mut()[new_id - 1] = true;
 368                         },
 369                         1 => {
 370                                 let mut new_id = 0;
 371                                 for i in 1..256 {
 372                                         if !peers.borrow()[i-1] {
 373                                                 new_id = i;
 374                                                 break;
 375                                         }
 376                                 }
 377                                 if new_id == 0 { return; }
 378                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 379                                 peers.borrow_mut()[new_id - 1] = true;
 380                         },
 381                         2 => {
 382                                 let peer_id = get_slice!(1)[0];
 383                                 if !peers.borrow()[peer_id as usize] { return; }
 384                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
 385                                 peers.borrow_mut()[peer_id as usize] = false;
 386                         },
 387                         3 => {
 388                                 let peer_id = get_slice!(1)[0];
 389                                 if !peers.borrow()[peer_id as usize] { return; }
 390                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
 391                                         Ok(res) => assert!(!res),
 392                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 393                                 }
 394                         },
 395                         4 => {
 396                                 let value = slice_to_be24(get_slice!(3)) as u64;
 397                                 let route = match get_route(&our_id, &net_graph_msg_handler, &get_pubkey!(), None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 398                                         Ok(route) => route,
 399                                         Err(_) => return,
 400                                 };
 401                                 let mut payment_hash = PaymentHash([0; 32]);
 402                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 403                                 let mut sha = Sha256::engine();
 404                                 sha.input(&payment_hash.0[..]);
 405                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 406                                 payments_sent += 1;
 407                                 match channelmanager.send_payment(&route, payment_hash, &None) {
 408                                         Ok(_) => {},
 409                                         Err(_) => return,
 410                                 }
 411                         },
 412                         15 => {
 413                                 let value = slice_to_be24(get_slice!(3)) as u64;
 414                                 let mut route = match get_route(&our_id, &net_graph_msg_handler, &get_pubkey!(), None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 415                                         Ok(route) => route,
 416                                         Err(_) => return,
 417                                 };
 418                                 route.paths.push(route.paths[0].clone());
 419                                 let mut payment_hash = PaymentHash([0; 32]);
 420                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 421                                 let mut sha = Sha256::engine();
 422                                 sha.input(&payment_hash.0[..]);
 423                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 424                                 payments_sent += 1;
 425                                 let mut payment_secret = PaymentSecret([0; 32]);
 426                                 payment_secret.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 427                                 payments_sent += 1;
 428                                 match channelmanager.send_payment(&route, payment_hash, &Some(payment_secret)) {
 429                                         Ok(_) => {},
 430                                         Err(_) => return,
 431                                 }
 432                         },
 433                         5 => {
 434                                 let peer_id = get_slice!(1)[0];
 435                                 if !peers.borrow()[peer_id as usize] { return; }
 436                                 let their_key = get_pubkey!();
 437                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 438                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 439                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None).is_err() { return; }
 440                         },
 441                         6 => {
 442                                 let mut channels = channelmanager.list_channels();
 443                                 let channel_id = get_slice!(1)[0] as usize;
 444                                 if channel_id >= channels.len() { return; }
 445                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 446                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
 447                         },
 448                         7 => {
 449                                 if should_forward {
 450                                         channelmanager.process_pending_htlc_forwards();
 451                                         should_forward = false;
 452                                 }
 453                         },
 454                         8 => {
 455                                 for (payment, payment_secret, amt) in payments_received.drain(..) {
 456                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 457                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 458                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 459                                         // place that anywhere in our preimage.
 460                                         if &payment.0[1..] != &[0; 31] {
 461                                                 channelmanager.fail_htlc_backwards(&payment, &payment_secret);
 462                                         } else {
 463                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 464                                                 payment_preimage.0[0] = payment.0[0];
 465                                                 channelmanager.claim_funds(payment_preimage, &payment_secret, amt);
 466                                         }
 467                                 }
 468                         },
 469                         9 => {
 470                                 for (payment, payment_secret, _) in payments_received.drain(..) {
 471                                         channelmanager.fail_htlc_backwards(&payment, &payment_secret);
 472                                 }
 473                         },
 474                         10 => {
 475                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
 476                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
 477                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
 478                                                 }] };
 479                                         let funding_output = 'search_loop: loop {
 480                                                 let funding_txid = tx.txid();
 481                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
 482                                                         let outpoint = OutPoint::new(funding_txid, 0);
 483                                                         for chan in channelmanager.list_channels() {
 484                                                                 if chan.channel_id == outpoint.to_channel_id() {
 485                                                                         tx.version += 1;
 486                                                                         continue 'search_loop;
 487                                                                 }
 488                                                         }
 489                                                         break outpoint;
 490                                                 }
 491                                                 tx.version += 1;
 492                                                 if tx.version > 0xff {
 493                                                         continue 'outer_loop;
 494                                                 }
 495                                         };
 496                                         channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
 497                                         pending_funding_signatures.insert(funding_output, tx);
 498                                 }
 499                         },
 500                         11 => {
 501                                 if !pending_funding_relay.is_empty() {
 502                                         loss_detector.connect_block(&pending_funding_relay[..]);
 503                                         for _ in 2..100 {
 504                                                 loss_detector.connect_block(&[]);
 505                                         }
 506                                 }
 507                                 for tx in pending_funding_relay.drain(..) {
 508                                         loss_detector.funding_txn.push(tx);
 509                                 }
 510                         },
 511                         12 => {
 512                                 let txlen = slice_to_be16(get_slice!(2));
 513                                 if txlen == 0 {
 514                                         loss_detector.connect_block(&[]);
 515                                 } else {
 516                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 517                                         if let Ok(tx) = txres {
 518                                                 let mut output_val = 0;
 519                                                 for out in tx.output.iter() {
 520                                                         if out.value > 21_000_000_0000_0000 { return; }
 521                                                         output_val += out.value;
 522                                                         if output_val > 21_000_000_0000_0000 { return; }
 523                                                 }
 524                                                 loss_detector.connect_block(&[tx]);
 525                                         } else {
 526                                                 return;
 527                                         }
 528                                 }
 529                         },
 530                         13 => {
 531                                 loss_detector.disconnect_block();
 532                         },
 533                         14 => {
 534                                 let mut channels = channelmanager.list_channels();
 535                                 let channel_id = get_slice!(1)[0] as usize;
 536                                 if channel_id >= channels.len() { return; }
 537                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 538                                 channelmanager.force_close_channel(&channels[channel_id].channel_id);
 539                         },
 540                         // 15 is above
 541                         _ => return,
 542                 }
 543                 loss_detector.handler.process_events();
 544                 for event in loss_detector.manager.get_and_clear_pending_events() {
 545                         match event {
 546                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
 547                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
 548                                 },
 549                                 Event::FundingBroadcastSafe { funding_txo, .. } => {
 550                                         pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
 551                                 },
 552                                 Event::PaymentReceived { payment_hash, payment_secret, amt } => {
 553                                         //TODO: enhance by fetching random amounts from fuzz input?
 554                                         payments_received.push((payment_hash, payment_secret, amt));
 555                                 },
 556                                 Event::PaymentSent {..} => {},
 557                                 Event::PaymentFailed {..} => {},
 558                                 Event::PendingHTLCsForwardable {..} => {
 559                                         should_forward = true;
 560                                 },
 561                                 Event::SpendableOutputs {..} => {},
 562                         }
 563                 }
 564         }
 565 }
 566
 567 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 568         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 569         do_test(data, &logger);
 570 }
 571
 572 #[no_mangle]
 573 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
 574         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
 575         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
 576 }
 577
 578 #[cfg(test)]
 579 mod tests {
 580         use lightning::util::logger::{Logger, Record};
 581         use std::collections::HashMap;
 582         use std::sync::{Arc, Mutex};
 583
 584         struct TrackingLogger {
 585                 /// (module, message) -> count
 586                 pub lines: Mutex<HashMap<(String, String), usize>>,
 587         }
 588         impl Logger for TrackingLogger {
 589                 fn log(&self, record: &Record) {
 590                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 591                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 592                 }
 593         }
 594
 595         #[test]
 596         fn test_no_existing_test_breakage() {
 597                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 598                 // changes (such as requesting feerate info in a new place), we run a pretty full
 599                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 600                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 601                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 602
 603                 // What each byte represents is broken down below, and then everything is concatenated into
 604                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
 605
 606                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
 607                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
 608                 // of the Lightning message
 609                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
 610                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
 611
 612                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
 613
 614                 // 0000000000000000000000000000000000000000000000000000000000000000 - our network key
 615                 // 00000000 - fee_proportional_millionths
 616                 // 01 - announce_channels_publicly
 617                 //
 618                 // 00 - new outbound connection with id 0
 619                 // 030000000000000000000000000000000000000000000000000000000000000000 - peer's pubkey
 620                 // 030032 - inbound read from peer id 0 of len 50
 621                 // 00 030000000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
 622                 //
 623                 // 030012 - inbound read from peer id 0 of len 18
 624                 // 000a 03000000000000000000000000000000 - message header indicating message length 10
 625                 // 03001a - inbound read from peer id 0 of len 26
 626                 // 0010 00022000 00022000 03000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 627                 //
 628                 // 030012 - inbound read from peer id 0 of len 18
 629                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
 630                 // 0300fe - inbound read from peer id 0 of len 254
 631                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000222 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
 632                 // 030053 - inbound read from peer id 0 of len 83
 633                 // 030000000000000000000000000000000000000000000000000000000000000005 030000000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
 634                 //
 635                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 636                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 637                 //
 638                 // 030012 - inbound read from peer id 0 of len 18
 639                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
 640                 // 030094 - inbound read from peer id 0 of len 148
 641                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 20000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 03000000000000000000000000000000 - funding_created and mac
 642                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 643                 //
 644                 // 0c005e - connect a block with one transaction of len 94
 645                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 646                 // 0c0000 - connect a block with no transactions
 647                 // 0c0000 - connect a block with no transactions
 648                 // 0c0000 - connect a block with no transactions
 649                 // 0c0000 - connect a block with no transactions
 650                 // 0c0000 - connect a block with no transactions
 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                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
 659                 //
 660                 // 030012 - inbound read from peer id 0 of len 18
 661                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
 662                 // 030053 - inbound read from peer id 0 of len 83
 663                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
 664                 //
 665                 // 01 - new inbound connection with id 1
 666                 // 030132 - inbound read from peer id 1 of len 50
 667                 // 0003000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000 - inbound noise act 1
 668                 // 030142 - inbound read from peer id 1 of len 66
 669                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
 670                 //
 671                 // 030112 - inbound read from peer id 1 of len 18
 672                 // 000a 01000000000000000000000000000000 - message header indicating message length 10
 673                 // 03011a - inbound read from peer id 1 of len 26
 674                 // 0010 00022000 00022000 01000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 675                 //
 676                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
 677                 // 00fd00fd00fd - Three feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
 678                 //
 679                 // 030112 - inbound read from peer id 1 of len 18
 680                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
 681                 // 0301ff - inbound read from peer id 1 of len 255
 682                 // 0021 0000000000000000000000000000000000000000000000000000000000000e02 000000000000001a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 03000000000000000000000000000000 - beginning of accept_channel
 683                 // 030121 - inbound read from peer id 1 of len 33
 684                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
 685                 //
 686                 // 0a - create the funding transaction (client should send funding_created now)
 687                 //
 688                 // 030112 - inbound read from peer id 1 of len 18
 689                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
 690                 // 030172 - inbound read from peer id 1 of len 114
 691                 // 0023 3900000000000000000000000000000000000000000000000000000000000000 f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 01000000000000000000000000000000 - funding_signed message and mac
 692                 //
 693                 // 0b - broadcast funding transaction
 694                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
 695                 //
 696                 // 030112 - inbound read from peer id 1 of len 18
 697                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
 698                 // 030153 - inbound read from peer id 1 of len 83
 699                 // 0024 3900000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
 700                 //
 701                 // 030012 - inbound read from peer id 0 of len 18
 702                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 703                 // 0300ff - inbound read from peer id 0 of len 255
 704                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e80000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 705                 // 0300ff - inbound read from peer id 0 of len 255
 706                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 707                 // 0300ff - inbound read from peer id 0 of len 255
 708                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 709                 // 0300ff - inbound read from peer id 0 of len 255
 710                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 711                 // 0300ff - inbound read from peer id 0 of len 255
 712                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 713                 // 0300c1 - inbound read from peer id 0 of len 193
 714                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 715                 //
 716                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 717                 //
 718                 // 030012 - inbound read from peer id 0 of len 18
 719                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 720                 // 030074 - inbound read from peer id 0 of len 116
 721                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 31000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 722                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
 723                 //
 724                 // 030012 - inbound read from peer id 0 of len 18
 725                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 726                 // 030073 - inbound read from peer id 0 of len 115
 727                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 728                 //
 729                 // 07 - process the now-pending HTLC forward
 730                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
 731                 //
 732                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
 733                 // 030112 - inbound read from peer id 1 of len 18
 734                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 735                 // 030174 - inbound read from peer id 1 of len 116
 736                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 f1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 737                 //
 738                 // 030112 - inbound read from peer id 1 of len 18
 739                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 740                 // 030173 - inbound read from peer id 1 of len 115
 741                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 742                 //
 743                 // 030112 - inbound read from peer id 1 of len 18
 744                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
 745                 // 03015a - inbound read from peer id 1 of len 90
 746                 // 0082 3900000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
 747                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
 748                 //
 749                 // 030112 - inbound read from peer id 1 of len 18
 750                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 751                 // 030174 - inbound read from peer id 1 of len 116
 752                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 753                 //
 754                 // 030112 - inbound read from peer id 1 of len 18
 755                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 756                 // 030173 - inbound read from peer id 1 of len 115
 757                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 758                 //
 759                 // - before responding to the commitment_signed generated above, send a new HTLC
 760                 // 030012 - inbound read from peer id 0 of len 18
 761                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 762                 // 0300ff - inbound read from peer id 0 of len 255
 763                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e80000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 764                 // 0300ff - inbound read from peer id 0 of len 255
 765                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 766                 // 0300ff - inbound read from peer id 0 of len 255
 767                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 768                 // 0300ff - inbound read from peer id 0 of len 255
 769                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 770                 // 0300ff - inbound read from peer id 0 of len 255
 771                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 772                 // 0300c1 - inbound read from peer id 0 of len 193
 773                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 774                 //
 775                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 776                 //
 777                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
 778                 // 030012 - inbound read from peer id 0 of len 18
 779                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 780                 // 030073 - inbound read from peer id 0 of len 115
 781                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 782                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 783                 //
 784                 // 030012 - inbound read from peer id 0 of len 18
 785                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 786                 // 030074 - inbound read from peer id 0 of len 116
 787                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 c2000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 788                 //
 789                 // 030012 - inbound read from peer id 0 of len 18
 790                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 791                 // 030073 - inbound read from peer id 0 of len 115
 792                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 793                 //
 794                 // 07 - process the now-pending HTLC forward
 795                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 796                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
 797                 //
 798                 // 030112 - inbound read from peer id 1 of len 18
 799                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 800                 // 030174 - inbound read from peer id 1 of len 116
 801                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 802                 //
 803                 // 030112 - inbound read from peer id 1 of len 18
 804                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 805                 // 030173 - inbound read from peer id 1 of len 115
 806                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 807                 //
 808                 // 030112 - inbound read from peer id 1 of len 18
 809                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
 810                 // 03013c - inbound read from peer id 1 of len 60
 811                 // 0083 3900000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
 812                 //
 813                 // 030112 - inbound read from peer id 1 of len 18
 814                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 815                 // 030174 - inbound read from peer id 1 of len 116
 816                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 817                 //
 818                 // 030112 - inbound read from peer id 1 of len 18
 819                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 820                 // 030173 - inbound read from peer id 1 of len 115
 821                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 822                 //
 823                 // 07 - process the now-pending HTLC forward
 824                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
 825                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
 826                 //
 827                 // 030012 - inbound read from peer id 0 of len 18
 828                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 829                 // 030073 - inbound read from peer id 0 of len 115
 830                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 831                 //
 832                 // 030012 - inbound read from peer id 0 of len 18
 833                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 834                 // 030074 - inbound read from peer id 0 of len 116
 835                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 33000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 836                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
 837                 //
 838                 // 030012 - inbound read from peer id 0 of len 18
 839                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 840                 // 0300ff - inbound read from peer id 0 of len 255
 841                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e0000010000000000000003e8000000007b0000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 842                 // 0300ff - inbound read from peer id 0 of len 255
 843                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 844                 // 0300ff - inbound read from peer id 0 of len 255
 845                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 846                 // 0300ff - inbound read from peer id 0 of len 255
 847                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 848                 // 0300ff - inbound read from peer id 0 of len 255
 849                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 850                 // 0300c1 - inbound read from peer id 0 of len 193
 851                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 9500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 852                 //
 853                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 854                 //
 855                 // 030012 - inbound read from peer id 0 of len 18
 856                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
 857                 // 0300b4 - inbound read from peer id 0 of len 180
 858                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 7b000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0001 c8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f00000000000000 03000000000000000000000000000000 - commitment_signed and mac
 859                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 860                 //
 861                 // 030012 - inbound read from peer id 0 of len 18
 862                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 863                 // 030073 - inbound read from peer id 0 of len 115
 864                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0400000000000000000000000000000000000000000000000000000000000000 030600000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 865                 //
 866                 // 07 - process the now-pending HTLC forward
 867                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 868                 //
 869                 // 0c007d - connect a block with one transaction of len 125
 870                 // 02000000013900000000000000000000000000000000000000000000000000000000000000000000000000000080020001000000000000220020bb000000000000000000000000000000000000000000000000000000000000006cc10000000000001600142b0000000000000000000000000000000000000005000020 - the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
 871                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 872                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 873                 // 0c005e - connect a block with one transaction of len 94
 874                 // 0200000001a100000000000000000000000000000000000000000000000000000000000000000000000000000000014f00000000000000220020f60000000000000000000000000000000000000000000000000000000000000000000000 - the HTLC timeout transaction
 875                 // 0c0000 - connect a block with no transactions
 876                 // 0c0000 - connect a block with no transactions
 877                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 878                 // 0c0000 - connect a block with no transactions
 879                 // 0c0000 - connect a block with no transactions
 880                 // 0c0000 - connect a block with no transactions
 881                 //
 882                 // 07 - process the now-pending HTLC forward
 883                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 884
 885                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
 886                 super::do_test(&::hex::decode("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 887
 888                 let log_entries = logger.lines.lock().unwrap();
 889                 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
 890                 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
 891                 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
 892                 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
 893                 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
 894                 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
 895                 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
 896                 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
 897                 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
 898                 assert_eq!(log_entries.get(&("lightning::ln::channelmonitor".to_string(), "Input spending remote commitment tx (00000000000000000000000000000000000000000000000000000000000000a1:0) in 0000000000000000000000000000000000000000000000000000000000000018 resolves outbound HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 with timeout".to_string())), Some(&1)); // 10
 899         }
 900 }