_ Git - rust-lightning/blob - fuzz/fuzz_targets/full_stack_target.rs

   1 extern crate bitcoin;
   2 extern crate crypto;
   3 extern crate lightning;
   4 extern crate secp256k1;
   5
   6 use bitcoin::blockdata::block::BlockHeader;
   7 use bitcoin::blockdata::transaction::{Transaction, TxOut};
   8 use bitcoin::blockdata::script::{Builder, Script};
   9 use bitcoin::blockdata::opcodes;
  10 use bitcoin::consensus::encode::deserialize;
  11 use bitcoin::network::constants::Network;
  12 use bitcoin::util::hash::{BitcoinHash, Sha256dHash, Hash160};
  13
  14 use crypto::digest::Digest;
  15
  16 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
  17 use lightning::chain::transaction::OutPoint;
  18 use lightning::chain::keysinterface::{ChannelKeys, KeysInterface};
  19 use lightning::ln::channelmonitor;
  20 use lightning::ln::channelmanager::{ChannelManager, PaymentFailReason, PaymentHash, PaymentPreimage};
  21 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
  22 use lightning::ln::router::Router;
  23 use lightning::util::events::{EventsProvider,Event};
  24 use lightning::util::{reset_rng_state, fill_bytes};
  25 use lightning::util::logger::Logger;
  26 use lightning::util::sha2::Sha256;
  27 use lightning::util::config::UserConfig;
  28
  29 mod utils;
  30
  31 use utils::test_logger;
  32
  33 use secp256k1::key::{PublicKey,SecretKey};
  34 use secp256k1::Secp256k1;
  35
  36 use std::cell::RefCell;
  37 use std::collections::{HashMap, hash_map};
  38 use std::cmp;
  39 use std::hash::Hash;
  40 use std::sync::Arc;
  41 use std::sync::atomic::{AtomicUsize,Ordering};
  42
  43 #[inline]
  44 pub fn slice_to_be16(v: &[u8]) -> u16 {
  45         ((v[0] as u16) << 8*1) |
  46         ((v[1] as u16) << 8*0)
  47 }
  48
  49 #[inline]
  50 pub fn slice_to_be24(v: &[u8]) -> u32 {
  51         ((v[0] as u32) << 8*2) |
  52         ((v[1] as u32) << 8*1) |
  53         ((v[2] as u32) << 8*0)
  54 }
  55
  56 #[inline]
  57 pub fn slice_to_be32(v: &[u8]) -> u32 {
  58         ((v[0] as u32) << 8*3) |
  59         ((v[1] as u32) << 8*2) |
  60         ((v[2] as u32) << 8*1) |
  61         ((v[3] as u32) << 8*0)
  62 }
  63
  64 #[inline]
  65 pub fn be64_to_array(u: u64) -> [u8; 8] {
  66         let mut v = [0; 8];
  67         v[0] = ((u >> 8*7) & 0xff) as u8;
  68         v[1] = ((u >> 8*6) & 0xff) as u8;
  69         v[2] = ((u >> 8*5) & 0xff) as u8;
  70         v[3] = ((u >> 8*4) & 0xff) as u8;
  71         v[4] = ((u >> 8*3) & 0xff) as u8;
  72         v[5] = ((u >> 8*2) & 0xff) as u8;
  73         v[6] = ((u >> 8*1) & 0xff) as u8;
  74         v[7] = ((u >> 8*0) & 0xff) as u8;
  75         v
  76 }
  77
  78 struct InputData {
  79         data: Vec<u8>,
  80         read_pos: AtomicUsize,
  81 }
  82 impl InputData {
  83         fn get_slice(&self, len: usize) -> Option<&[u8]> {
  84                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
  85                 if self.data.len() < old_pos + len {
  86                         return None;
  87                 }
  88                 Some(&self.data[old_pos..old_pos + len])
  89         }
  90 }
  91
  92 struct FuzzEstimator {
  93         input: Arc<InputData>,
  94 }
  95 impl FeeEstimator for FuzzEstimator {
  96         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
  97                 //TODO: We should actually be testing at least much more than 64k...
  98                 match self.input.get_slice(2) {
  99                         Some(slice) => cmp::max(slice_to_be16(slice) as u64, 253),
 100                         None => 0
 101                 }
 102         }
 103 }
 104
 105 struct TestBroadcaster {}
 106 impl BroadcasterInterface for TestBroadcaster {
 107         fn broadcast_transaction(&self, _tx: &Transaction) {}
 108 }
 109
 110 #[derive(Clone)]
 111 struct Peer<'a> {
 112         id: u8,
 113         peers_connected: &'a RefCell<[bool; 256]>,
 114 }
 115 impl<'a> SocketDescriptor for Peer<'a> {
 116         fn send_data(&mut self, data: &Vec<u8>, write_offset: usize, _resume_read: bool) -> usize {
 117                 assert!(write_offset < data.len());
 118                 data.len() - write_offset
 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> 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>,
 139         monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>,
 140         handler: PeerManager<Peer<'a>>,
 141
 142         peers: &'a RefCell<[bool; 256]>,
 143         funding_txn: Vec<Transaction>,
 144         txids_confirmed: HashMap<Sha256dHash, usize>,
 145         header_hashes: Vec<Sha256dHash>,
 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]>, manager: Arc<ChannelManager>, monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>, handler: PeerManager<Peer<'a>>) -> Self {
 152                 MoneyLossDetector {
 153                         manager,
 154                         monitor,
 155                         handler,
 156
 157                         peers,
 158                         funding_txn: Vec::new(),
 159                         txids_confirmed: HashMap::new(),
 160                         header_hashes: vec![Default::default()],
 161                         height: 0,
 162                         max_height: 0,
 163                         blocks_connected: 0,
 164                 }
 165         }
 166
 167         fn connect_block(&mut self, all_txn: &[Transaction]) {
 168                 let mut txn = Vec::with_capacity(all_txn.len());
 169                 let mut txn_idxs = Vec::with_capacity(all_txn.len());
 170                 for (idx, tx) in all_txn.iter().enumerate() {
 171                         let txid = tx.txid();
 172                         match self.txids_confirmed.entry(txid) {
 173                                 hash_map::Entry::Vacant(e) => {
 174                                         e.insert(self.height);
 175                                         txn.push(tx);
 176                                         txn_idxs.push(idx as u32 + 1);
 177                                 },
 178                                 _ => {},
 179                         }
 180                 }
 181
 182                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
 183                 self.height += 1;
 184                 self.blocks_connected += 1;
 185                 self.manager.block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
 186                 (*self.monitor).block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
 187                 if self.header_hashes.len() > self.height {
 188                         self.header_hashes[self.height] = header.bitcoin_hash();
 189                 } else {
 190                         assert_eq!(self.header_hashes.len(), self.height);
 191                         self.header_hashes.push(header.bitcoin_hash());
 192                 }
 193                 self.max_height = cmp::max(self.height, self.max_height);
 194         }
 195
 196         fn disconnect_block(&mut self) {
 197                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 198                         self.height -= 1;
 199                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
 200                         self.manager.block_disconnected(&header);
 201                         self.monitor.block_disconnected(&header);
 202                         let removal_height = self.height;
 203                         self.txids_confirmed.retain(|_, height| {
 204                                 removal_height != *height
 205                         });
 206                 }
 207         }
 208 }
 209
 210 impl<'a> Drop for MoneyLossDetector<'a> {
 211         fn drop(&mut self) {
 212                 if !::std::thread::panicking() {
 213                         // Disconnect all peers
 214                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 215                                 if *peer {
 216                                         self.handler.disconnect_event(&Peer{id: idx as u8, peers_connected: &self.peers});
 217                                 }
 218                         }
 219
 220                         // Force all channels onto the chain (and time out claim txn)
 221                         self.manager.force_close_all_channels();
 222                 }
 223         }
 224 }
 225
 226 struct KeyProvider {
 227         node_secret: SecretKey,
 228 }
 229 impl KeysInterface for KeyProvider {
 230         fn get_node_secret(&self) -> SecretKey {
 231                 self.node_secret.clone()
 232         }
 233
 234         fn get_destination_script(&self) -> Script {
 235                 let secp_ctx = Secp256k1::signing_only();
 236                 let channel_monitor_claim_key = SecretKey::from_slice(&secp_ctx, &hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 237                 let our_channel_monitor_claim_key_hash = Hash160::from_data(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 238                 Builder::new().push_opcode(opcodes::All::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 239         }
 240
 241         fn get_shutdown_pubkey(&self) -> PublicKey {
 242                 let secp_ctx = Secp256k1::signing_only();
 243                 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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())
 244         }
 245
 246         fn get_channel_keys(&self, inbound: bool) -> ChannelKeys {
 247                 let secp_ctx = Secp256k1::without_caps();
 248                 if inbound {
 249                         ChannelKeys {
 250                                 funding_key:               SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 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, 0]).unwrap(),
 251                                 revocation_base_key:       SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 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, 0]).unwrap(),
 252                                 payment_base_key:          SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 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, 0]).unwrap(),
 253                                 delayed_payment_base_key:  SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 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, 0]).unwrap(),
 254                                 htlc_base_key:             SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 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, 0]).unwrap(),
 255                                 commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
 256                         }
 257                 } else {
 258                         ChannelKeys {
 259                                 funding_key:               SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
 260                                 revocation_base_key:       SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
 261                                 payment_base_key:          SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
 262                                 delayed_payment_base_key:  SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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                                 htlc_base_key:             SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
 264                                 commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
 265                         }
 266                 }
 267         }
 268
 269         fn get_session_key(&self) -> SecretKey {
 270                 let mut session_key = [0; 32];
 271                 fill_bytes(&mut session_key);
 272                 SecretKey::from_slice(&Secp256k1::without_caps(), &session_key).unwrap()
 273         }
 274 }
 275
 276 #[inline]
 277 pub fn do_test(data: &[u8], logger: &Arc<Logger>) {
 278         reset_rng_state();
 279
 280         let input = Arc::new(InputData {
 281                 data: data.to_vec(),
 282                 read_pos: AtomicUsize::new(0),
 283         });
 284         let fee_est = Arc::new(FuzzEstimator {
 285                 input: input.clone(),
 286         });
 287
 288         macro_rules! get_slice {
 289                 ($len: expr) => {
 290                         match input.get_slice($len as usize) {
 291                                 Some(slice) => slice,
 292                                 None => return,
 293                         }
 294                 }
 295         }
 296
 297         let secp_ctx = Secp256k1::new();
 298         macro_rules! get_pubkey {
 299                 () => {
 300                         match PublicKey::from_slice(&secp_ctx, get_slice!(33)) {
 301                                 Ok(key) => key,
 302                                 Err(_) => return,
 303                         }
 304                 }
 305         }
 306
 307         let our_network_key = match SecretKey::from_slice(&secp_ctx, get_slice!(32)) {
 308                 Ok(key) => key,
 309                 Err(_) => return,
 310         };
 311
 312         let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
 313         let broadcast = Arc::new(TestBroadcaster{});
 314         let monitor = channelmonitor::SimpleManyChannelMonitor::new(watch.clone(), broadcast.clone(), Arc::clone(&logger));
 315
 316         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone() });
 317         let mut config = UserConfig::new();
 318         config.channel_options.fee_proportional_millionths =  slice_to_be32(get_slice!(4));
 319         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
 320         config.channel_limits.min_dust_limit_satoshis = 0;
 321         let channelmanager = ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), watch.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config).unwrap();
 322         let router = Arc::new(Router::new(PublicKey::from_secret_key(&secp_ctx, &keys_manager.get_node_secret()), watch.clone(), Arc::clone(&logger)));
 323
 324         let peers = RefCell::new([false; 256]);
 325         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 326                 chan_handler: channelmanager.clone(),
 327                 route_handler: router.clone(),
 328         }, our_network_key, Arc::clone(&logger)));
 329
 330         let mut should_forward = false;
 331         let mut payments_received: Vec<PaymentHash> = Vec::new();
 332         let mut payments_sent = 0;
 333         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
 334         let mut pending_funding_signatures = HashMap::new();
 335         let mut pending_funding_relay = Vec::new();
 336
 337         loop {
 338                 match get_slice!(1)[0] {
 339                         0 => {
 340                                 let mut new_id = 0;
 341                                 for i in 1..256 {
 342                                         if !peers.borrow()[i-1] {
 343                                                 new_id = i;
 344                                                 break;
 345                                         }
 346                                 }
 347                                 if new_id == 0 { return; }
 348                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 349                                 peers.borrow_mut()[new_id - 1] = true;
 350                         },
 351                         1 => {
 352                                 let mut new_id = 0;
 353                                 for i in 1..256 {
 354                                         if !peers.borrow()[i-1] {
 355                                                 new_id = i;
 356                                                 break;
 357                                         }
 358                                 }
 359                                 if new_id == 0 { return; }
 360                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 361                                 peers.borrow_mut()[new_id - 1] = true;
 362                         },
 363                         2 => {
 364                                 let peer_id = get_slice!(1)[0];
 365                                 if !peers.borrow()[peer_id as usize] { return; }
 366                                 loss_detector.handler.disconnect_event(&Peer{id: peer_id, peers_connected: &peers});
 367                                 peers.borrow_mut()[peer_id as usize] = false;
 368                         },
 369                         3 => {
 370                                 let peer_id = get_slice!(1)[0];
 371                                 if !peers.borrow()[peer_id as usize] { return; }
 372                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0]).to_vec()) {
 373                                         Ok(res) => assert!(!res),
 374                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 375                                 }
 376                         },
 377                         4 => {
 378                                 let value = slice_to_be24(get_slice!(3)) as u64;
 379                                 let route = match router.get_route(&get_pubkey!(), None, &Vec::new(), value, 42) {
 380                                         Ok(route) => route,
 381                                         Err(_) => return,
 382                                 };
 383                                 let mut payment_hash = PaymentHash([0; 32]);
 384                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 385                                 let mut sha = Sha256::new();
 386                                 sha.input(&payment_hash.0[..]);
 387                                 sha.result(&mut payment_hash.0[..]);
 388                                 payments_sent += 1;
 389                                 match channelmanager.send_payment(route, payment_hash) {
 390                                         Ok(_) => {},
 391                                         Err(_) => return,
 392                                 }
 393                         },
 394                         5 => {
 395                                 let peer_id = get_slice!(1)[0];
 396                                 if !peers.borrow()[peer_id as usize] { return; }
 397                                 let their_key = get_pubkey!();
 398                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 399                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 400                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0).is_err() { return; }
 401                         },
 402                         6 => {
 403                                 let mut channels = channelmanager.list_channels();
 404                                 let channel_id = get_slice!(1)[0] as usize;
 405                                 if channel_id >= channels.len() { return; }
 406                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 407                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
 408                         },
 409                         7 => {
 410                                 if should_forward {
 411                                         channelmanager.process_pending_htlc_forwards();
 412                                         should_forward = false;
 413                                 }
 414                         },
 415                         8 => {
 416                                 for payment in payments_received.drain(..) {
 417                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 418                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 419                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 420                                         // place that anywhere in our preimage.
 421                                         if &payment.0[1..] != &[0; 31] {
 422                                                 channelmanager.fail_htlc_backwards(&payment, PaymentFailReason::PreimageUnknown);
 423                                         } else {
 424                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 425                                                 payment_preimage.0[0] = payment.0[0];
 426                                                 channelmanager.claim_funds(payment_preimage);
 427                                         }
 428                                 }
 429                         },
 430                         9 => {
 431                                 for payment in payments_received.drain(..) {
 432                                         channelmanager.fail_htlc_backwards(&payment, PaymentFailReason::PreimageUnknown);
 433                                 }
 434                         },
 435                         10 => {
 436                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
 437                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
 438                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
 439                                                 }] };
 440                                         let funding_output = 'search_loop: loop {
 441                                                 let funding_txid = tx.txid();
 442                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
 443                                                         let outpoint = OutPoint::new(funding_txid, 0);
 444                                                         for chan in channelmanager.list_channels() {
 445                                                                 if chan.channel_id == outpoint.to_channel_id() {
 446                                                                         tx.version += 1;
 447                                                                         continue 'search_loop;
 448                                                                 }
 449                                                         }
 450                                                         break outpoint;
 451                                                 }
 452                                                 tx.version += 1;
 453                                                 if tx.version > 0xff {
 454                                                         continue 'outer_loop;
 455                                                 }
 456                                         };
 457                                         channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
 458                                         pending_funding_signatures.insert(funding_output, tx);
 459                                 }
 460                         },
 461                         11 => {
 462                                 if !pending_funding_relay.is_empty() {
 463                                         loss_detector.connect_block(&pending_funding_relay[..]);
 464                                         for _ in 2..100 {
 465                                                 loss_detector.connect_block(&[]);
 466                                         }
 467                                 }
 468                                 for tx in pending_funding_relay.drain(..) {
 469                                         loss_detector.funding_txn.push(tx);
 470                                 }
 471                         },
 472                         12 => {
 473                                 let txlen = slice_to_be16(get_slice!(2));
 474                                 if txlen == 0 {
 475                                         loss_detector.connect_block(&[]);
 476                                 } else {
 477                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 478                                         if let Ok(tx) = txres {
 479                                                 loss_detector.connect_block(&[tx]);
 480                                         } else {
 481                                                 return;
 482                                         }
 483                                 }
 484                         },
 485                         13 => {
 486                                 loss_detector.disconnect_block();
 487                         },
 488                         14 => {
 489                                 let mut channels = channelmanager.list_channels();
 490                                 let channel_id = get_slice!(1)[0] as usize;
 491                                 if channel_id >= channels.len() { return; }
 492                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 493                                 channelmanager.force_close_channel(&channels[channel_id].channel_id);
 494                         },
 495                         _ => return,
 496                 }
 497                 loss_detector.handler.process_events();
 498                 for event in loss_detector.manager.get_and_clear_pending_events() {
 499                         match event {
 500                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
 501                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
 502                                 },
 503                                 Event::FundingBroadcastSafe { funding_txo, .. } => {
 504                                         pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
 505                                 },
 506                                 Event::PaymentReceived { payment_hash, .. } => {
 507                                         payments_received.push(payment_hash);
 508                                 },
 509                                 Event::PaymentSent {..} => {},
 510                                 Event::PaymentFailed {..} => {},
 511                                 Event::PendingHTLCsForwardable {..} => {
 512                                         should_forward = true;
 513                                 },
 514                                 Event::SpendableOutputs {..} => {},
 515                         }
 516                 }
 517         }
 518 }
 519
 520 #[cfg(feature = "afl")]
 521 #[macro_use] extern crate afl;
 522 #[cfg(feature = "afl")]
 523 fn main() {
 524         fuzz!(|data| {
 525                 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 526                 do_test(data, &logger);
 527         });
 528 }
 529
 530 #[cfg(feature = "honggfuzz")]
 531 #[macro_use] extern crate honggfuzz;
 532 #[cfg(feature = "honggfuzz")]
 533 fn main() {
 534         loop {
 535                 fuzz!(|data| {
 536                         let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 537                         do_test(data, &logger);
 538                 });
 539         }
 540 }
 541
 542 extern crate hex;
 543 #[cfg(test)]
 544 mod tests {
 545         use utils::test_logger;
 546         use lightning::util::logger::{Logger, Record};
 547         use std::collections::HashMap;
 548         use std::sync::{Arc, Mutex};
 549
 550         #[test]
 551         fn duplicate_crash() {
 552                 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 553                 super::do_test(&::hex::decode("00").unwrap(), &logger);
 554         }
 555
 556         struct TrackingLogger {
 557                 /// (module, message) -> count
 558                 pub lines: Mutex<HashMap<(String, String), usize>>,
 559         }
 560         impl Logger for TrackingLogger {
 561                 fn log(&self, record: &Record) {
 562                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 563                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 564                 }
 565         }
 566
 567         #[test]
 568         fn test_no_existing_test_breakage() {
 569                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 570                 // changes (such as requesting feerate info in a new place), we run a pretty full
 571                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 572                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 573                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 574
 575                 // What each byte represents is broken down below, and then everything is concatenated into
 576                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
 577
 578                 // 0000000000000000000000000000000000000000000000000000000000000000 - our network key
 579                 // 00000000 - fee_proportional_millionths
 580                 // 01 - announce_channels_publicly
 581                 //
 582                 // 00 - new outbound connection with id 0
 583                 // 030000000000000000000000000000000000000000000000000000000000000000 - peer's pubkey
 584                 // 030032 - inbound read from peer id 0 of len 50
 585                 // 00 030000000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
 586                 //
 587                 // 030012 - inbound read from peer id 0 of len 18
 588                 // 0006 03000000000000000000000000000000 - message header indicating message length 6
 589                 // 030016 - inbound read from peer id 0 of len 22
 590                 // 0010 00000000 03000000000000000000000000000000 - init message with no features (type 16)
 591                 //
 592                 // 030012 - inbound read from peer id 0 of len 18
 593                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
 594                 // 0300fe - inbound read from peer id 0 of len 254
 595                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000222 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
 596                 // 030053 - inbound read from peer id 0 of len 83
 597                 // 030000000000000000000000000000000000000000000000000000000000000005 030000000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
 598                 //
 599                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses)
 600                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 601                 //
 602                 // 030012 - inbound read from peer id 0 of len 18
 603                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
 604                 // 030094 - inbound read from peer id 0 of len 148
 605                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 36000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 03000000000000000000000000000000 - funding_created and mac
 606                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 607                 //
 608                 // 0c005e - connect a block with one transaction of len 94
 609                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 610                 // 0c0000 - connect a block with no transactions
 611                 // 0c0000 - connect a block with no transactions
 612                 // 0c0000 - connect a block with no transactions
 613                 // 0c0000 - connect a block with no transactions
 614                 // 0c0000 - connect a block with no transactions
 615                 // 0c0000 - connect a block with no transactions
 616                 // 0c0000 - connect a block with no transactions
 617                 // 0c0000 - connect a block with no transactions
 618                 // 0c0000 - connect a block with no transactions
 619                 // 0c0000 - connect a block with no transactions
 620                 // 0c0000 - connect a block with no transactions
 621                 // 0c0000 - connect a block with no transactions
 622                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
 623                 //
 624                 // 030012 - inbound read from peer id 0 of len 18
 625                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
 626                 // 030053 - inbound read from peer id 0 of len 83
 627                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
 628                 //
 629                 // 01 - new inbound connection with id 1
 630                 // 030132 - inbound read from peer id 1 of len 50
 631                 // 0003000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000 - inbound noise act 1
 632                 // 030142 - inbound read from peer id 1 of len 66
 633                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
 634                 //
 635                 // 030112 - inbound read from peer id 1 of len 18
 636                 // 0006 01000000000000000000000000000000 - message header indicating message length 6
 637                 // 030116 - inbound read from peer id 1 of len 22
 638                 // 0010 00000000 01000000000000000000000000000000 - init message with no features (type 16)
 639                 //
 640                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
 641                 // 00fd00fd00fd - Three feerate requests (all returning min feerate)
 642                 //
 643                 // 030112 - inbound read from peer id 1 of len 18
 644                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
 645                 // 0301ff - inbound read from peer id 1 of len 255
 646                 // 0021 0200000000000000020000000000000002000000000000000200000000000000 000000000000001a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 03000000000000000000000000000000 - beginning of accept_channel
 647                 // 030121 - inbound read from peer id 1 of len 33
 648                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
 649                 //
 650                 // 0a - create the funding transaction (client should send funding_created now)
 651                 //
 652                 // 030112 - inbound read from peer id 1 of len 18
 653                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
 654                 // 030172 - inbound read from peer id 1 of len 114
 655                 // 0023 3f00000000000000000000000000000000000000000000000000000000000000f6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 01000000000000000000000000000000 - funding_signed message and mac
 656                 //
 657                 // 0b - broadcast funding transaction
 658                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
 659                 //
 660                 // 030112 - inbound read from peer id 1 of len 18
 661                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
 662                 // 030153 - inbound read from peer id 1 of len 83
 663                 // 0024 3f00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
 664                 //
 665                 // 030012 - inbound read from peer id 0 of len 18
 666                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 667                 // 0300ff - inbound read from peer id 0 of len 255
 668                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 669                 // 0300ff - inbound read from peer id 0 of len 255
 670                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 671                 // 0300ff - inbound read from peer id 0 of len 255
 672                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 673                 // 0300ff - inbound read from peer id 0 of len 255
 674                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 675                 // 0300ff - inbound read from peer id 0 of len 255
 676                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 677                 // 0300c1 - inbound read from peer id 0 of len 193
 678                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 679                 //
 680                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 681                 //
 682                 // 030012 - inbound read from peer id 0 of len 18
 683                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 684                 // 030074 - inbound read from peer id 0 of len 116
 685                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 27000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 686                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
 687                 //
 688                 // 030012 - inbound read from peer id 0 of len 18
 689                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 690                 // 030073 - inbound read from peer id 0 of len 115
 691                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 692                 //
 693                 // 07 - process the now-pending HTLC forward
 694                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
 695                 //
 696                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
 697                 // 030112 - inbound read from peer id 1 of len 18
 698                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 699                 // 030174 - inbound read from peer id 1 of len 116
 700                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 f7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 701                 //
 702                 // 030112 - inbound read from peer id 1 of len 18
 703                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 704                 // 030173 - inbound read from peer id 1 of len 115
 705                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 706                 //
 707                 // 030112 - inbound read from peer id 1 of len 18
 708                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
 709                 // 03015a - inbound read from peer id 1 of len 90
 710                 // 0082 3f00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
 711                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
 712                 //
 713                 // 030112 - inbound read from peer id 1 of len 18
 714                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 715                 // 030174 - inbound read from peer id 1 of len 116
 716                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 fb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 717                 //
 718                 // 030112 - inbound read from peer id 1 of len 18
 719                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 720                 // 030173 - inbound read from peer id 1 of len 115
 721                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 722                 //
 723                 // - before responding to the commitment_signed generated above, send a new HTLC
 724                 // 030012 - inbound read from peer id 0 of len 18
 725                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 726                 // 0300ff - inbound read from peer id 0 of len 255
 727                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 728                 // 0300ff - inbound read from peer id 0 of len 255
 729                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 730                 // 0300ff - inbound read from peer id 0 of len 255
 731                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 732                 // 0300ff - inbound read from peer id 0 of len 255
 733                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 734                 // 0300ff - inbound read from peer id 0 of len 255
 735                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 736                 // 0300c1 - inbound read from peer id 0 of len 193
 737                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 738                 //
 739                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 740                 //
 741                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
 742                 // 030012 - inbound read from peer id 0 of len 18
 743                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 744                 // 030073 - inbound read from peer id 0 of len 115
 745                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 746                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 747                 //
 748                 // 030012 - inbound read from peer id 0 of len 18
 749                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 750                 // 030074 - inbound read from peer id 0 of len 116
 751                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 d4000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 752                 //
 753                 // 030012 - inbound read from peer id 0 of len 18
 754                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 755                 // 030073 - inbound read from peer id 0 of len 115
 756                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 757                 //
 758                 // 07 - process the now-pending HTLC forward
 759                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 760                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
 761                 //
 762                 // 030112 - inbound read from peer id 1 of len 18
 763                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 764                 // 030174 - inbound read from peer id 1 of len 116
 765                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 766                 //
 767                 // 030112 - inbound read from peer id 1 of len 18
 768                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 769                 // 030173 - inbound read from peer id 1 of len 115
 770                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 771                 //
 772                 // 030112 - inbound read from peer id 1 of len 18
 773                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
 774                 // 03013c - inbound read from peer id 1 of len 60
 775                 // 0083 3f00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
 776                 //
 777                 // 030112 - inbound read from peer id 1 of len 18
 778                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 779                 // 030174 - inbound read from peer id 1 of len 116
 780                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 fd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 781                 //
 782                 // 030112 - inbound read from peer id 1 of len 18
 783                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 784                 // 030173 - inbound read from peer id 1 of len 115
 785                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 786                 //
 787                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
 788                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
 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 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 793                 //
 794                 // 030012 - inbound read from peer id 0 of len 18
 795                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 796                 // 030074 - inbound read from peer id 0 of len 116
 797                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 25000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 798                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
 799                 //
 800                 // 030012 - inbound read from peer id 0 of len 18
 801                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 802                 // 0300ff - inbound read from peer id 0 of len 255
 803                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e0000010000000000000003e800000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 804                 // 0300ff - inbound read from peer id 0 of len 255
 805                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 806                 // 0300ff - inbound read from peer id 0 of len 255
 807                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 808                 // 0300ff - inbound read from peer id 0 of len 255
 809                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 810                 // 0300ff - inbound read from peer id 0 of len 255
 811                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 812                 // 0300c1 - inbound read from peer id 0 of len 193
 813                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 814                 //
 815                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 816                 //
 817                 // 030012 - inbound read from peer id 0 of len 18
 818                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
 819                 // 0300b4 - inbound read from peer id 0 of len 180
 820                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0001 b5000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d 00000000000000 03000000000000000000000000000000 - commitment_signed and mac
 821                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 822                 //
 823                 // 030012 - inbound read from peer id 0 of len 18
 824                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 825                 // 030073 - inbound read from peer id 0 of len 115
 826                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0400000000000000000000000000000000000000000000000000000000000000 030600000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 827                 //
 828                 // 07 - process the now-pending HTLC forward
 829                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 830                 //
 831                 // 0c007d - connect a block with one transaction of len 125
 832                 // 02000000013f00000000000000000000000000000000000000000000000000000000000000000000000000000080020001000000000000220020ed000000000000000000000000000000000000000000000000000000000000006cc10000000000001600142b88e0198963bf4c37de498583a3ccdb9d67e97405000020 - the funding transaction
 833                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 834                 // 0c005e - connect a block with one transaction of len 94
 835                 // 0200000001ec00000000000000000000000000000000000000000000000000000000000000000000000000000000014f00000000000000220020f60000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 836                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 837
 838                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
 839                 super::do_test(&::hex::decode("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 840
 841                 let log_entries = logger.lines.lock().unwrap();
 842                 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
 843                 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
 844                 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
 845                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 for channel 3f00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 4
 846                 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
 847                 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
 848                 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 3f00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 7
 849                 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
 850                 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
 851                 assert_eq!(log_entries.get(&("lightning::ln::channelmonitor".to_string(), "Input spending 00000000000000000000000000000000000000000000000000000000000000ec:0 resolves HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 from remote commitment tx".to_string())), Some(&1)); // 10
 852         }
 853 }