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

   1 //Uncomment this for libfuzzer builds:
   2 //#![no_main]
   3
   4 extern crate bitcoin;
   5 extern crate bitcoin_hashes;
   6 extern crate lightning;
   7 extern crate secp256k1;
   8
   9 use bitcoin::blockdata::block::BlockHeader;
  10 use bitcoin::blockdata::transaction::{Transaction, TxOut};
  11 use bitcoin::blockdata::script::{Builder, Script};
  12 use bitcoin::blockdata::opcodes;
  13 use bitcoin::consensus::encode::deserialize;
  14 use bitcoin::network::constants::Network;
  15 use bitcoin::util::hash::{BitcoinHash, Sha256dHash, Hash160};
  16
  17 use bitcoin_hashes::Hash as TraitImport;
  18 use bitcoin_hashes::HashEngine as TraitImportEngine;
  19 use bitcoin_hashes::sha256::Hash as Sha256;
  20
  21 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
  22 use lightning::chain::transaction::OutPoint;
  23 use lightning::chain::keysinterface::{ChannelKeys, KeysInterface};
  24 use lightning::ln::channelmonitor;
  25 use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage};
  26 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
  27 use lightning::ln::router::Router;
  28 use lightning::util::events::{EventsProvider,Event};
  29 use lightning::util::{reset_rng_state, fill_bytes};
  30 use lightning::util::logger::Logger;
  31 use lightning::util::config::UserConfig;
  32
  33 mod utils;
  34
  35 use utils::test_logger;
  36
  37 use secp256k1::key::{PublicKey,SecretKey};
  38 use secp256k1::Secp256k1;
  39
  40 use std::cell::RefCell;
  41 use std::collections::{HashMap, hash_map};
  42 use std::cmp;
  43 use std::hash::Hash;
  44 use std::sync::Arc;
  45 use std::sync::atomic::{AtomicUsize,Ordering};
  46
  47 #[inline]
  48 pub fn slice_to_be16(v: &[u8]) -> u16 {
  49         ((v[0] as u16) << 8*1) |
  50         ((v[1] as u16) << 8*0)
  51 }
  52
  53 #[inline]
  54 pub fn slice_to_be24(v: &[u8]) -> u32 {
  55         ((v[0] as u32) << 8*2) |
  56         ((v[1] as u32) << 8*1) |
  57         ((v[2] as u32) << 8*0)
  58 }
  59
  60 #[inline]
  61 pub fn slice_to_be32(v: &[u8]) -> u32 {
  62         ((v[0] as u32) << 8*3) |
  63         ((v[1] as u32) << 8*2) |
  64         ((v[2] as u32) << 8*1) |
  65         ((v[3] as u32) << 8*0)
  66 }
  67
  68 #[inline]
  69 pub fn be64_to_array(u: u64) -> [u8; 8] {
  70         let mut v = [0; 8];
  71         v[0] = ((u >> 8*7) & 0xff) as u8;
  72         v[1] = ((u >> 8*6) & 0xff) as u8;
  73         v[2] = ((u >> 8*5) & 0xff) as u8;
  74         v[3] = ((u >> 8*4) & 0xff) as u8;
  75         v[4] = ((u >> 8*3) & 0xff) as u8;
  76         v[5] = ((u >> 8*2) & 0xff) as u8;
  77         v[6] = ((u >> 8*1) & 0xff) as u8;
  78         v[7] = ((u >> 8*0) & 0xff) as u8;
  79         v
  80 }
  81
  82 struct InputData {
  83         data: Vec<u8>,
  84         read_pos: AtomicUsize,
  85 }
  86 impl InputData {
  87         fn get_slice(&self, len: usize) -> Option<&[u8]> {
  88                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
  89                 if self.data.len() < old_pos + len {
  90                         return None;
  91                 }
  92                 Some(&self.data[old_pos..old_pos + len])
  93         }
  94 }
  95
  96 struct FuzzEstimator {
  97         input: Arc<InputData>,
  98 }
  99 impl FeeEstimator for FuzzEstimator {
 100         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
 101                 //TODO: We should actually be testing at least much more than 64k...
 102                 match self.input.get_slice(2) {
 103                         Some(slice) => cmp::max(slice_to_be16(slice) as u64, 253),
 104                         None => 0
 105                 }
 106         }
 107 }
 108
 109 struct TestBroadcaster {}
 110 impl BroadcasterInterface for TestBroadcaster {
 111         fn broadcast_transaction(&self, _tx: &Transaction) {}
 112 }
 113
 114 #[derive(Clone)]
 115 struct Peer<'a> {
 116         id: u8,
 117         peers_connected: &'a RefCell<[bool; 256]>,
 118 }
 119 impl<'a> SocketDescriptor for Peer<'a> {
 120         fn send_data(&mut self, data: &Vec<u8>, write_offset: usize, _resume_read: bool) -> usize {
 121                 assert!(write_offset < data.len());
 122                 data.len() - write_offset
 123         }
 124         fn disconnect_socket(&mut self) {
 125                 assert!(self.peers_connected.borrow()[self.id as usize]);
 126                 self.peers_connected.borrow_mut()[self.id as usize] = false;
 127         }
 128 }
 129 impl<'a> PartialEq for Peer<'a> {
 130         fn eq(&self, other: &Self) -> bool {
 131                 self.id == other.id
 132         }
 133 }
 134 impl<'a> Eq for Peer<'a> {}
 135 impl<'a> Hash for Peer<'a> {
 136         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
 137                 self.id.hash(h)
 138         }
 139 }
 140
 141 struct MoneyLossDetector<'a> {
 142         manager: Arc<ChannelManager>,
 143         monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>,
 144         handler: PeerManager<Peer<'a>>,
 145
 146         peers: &'a RefCell<[bool; 256]>,
 147         funding_txn: Vec<Transaction>,
 148         txids_confirmed: HashMap<Sha256dHash, usize>,
 149         header_hashes: Vec<Sha256dHash>,
 150         height: usize,
 151         max_height: usize,
 152         blocks_connected: u32,
 153 }
 154 impl<'a> MoneyLossDetector<'a> {
 155         pub fn new(peers: &'a RefCell<[bool; 256]>, manager: Arc<ChannelManager>, monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>, handler: PeerManager<Peer<'a>>) -> Self {
 156                 MoneyLossDetector {
 157                         manager,
 158                         monitor,
 159                         handler,
 160
 161                         peers,
 162                         funding_txn: Vec::new(),
 163                         txids_confirmed: HashMap::new(),
 164                         header_hashes: vec![Default::default()],
 165                         height: 0,
 166                         max_height: 0,
 167                         blocks_connected: 0,
 168                 }
 169         }
 170
 171         fn connect_block(&mut self, all_txn: &[Transaction]) {
 172                 let mut txn = Vec::with_capacity(all_txn.len());
 173                 let mut txn_idxs = Vec::with_capacity(all_txn.len());
 174                 for (idx, tx) in all_txn.iter().enumerate() {
 175                         let txid = tx.txid();
 176                         match self.txids_confirmed.entry(txid) {
 177                                 hash_map::Entry::Vacant(e) => {
 178                                         e.insert(self.height);
 179                                         txn.push(tx);
 180                                         txn_idxs.push(idx as u32 + 1);
 181                                 },
 182                                 _ => {},
 183                         }
 184                 }
 185
 186                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
 187                 self.height += 1;
 188                 self.blocks_connected += 1;
 189                 self.manager.block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
 190                 (*self.monitor).block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
 191                 if self.header_hashes.len() > self.height {
 192                         self.header_hashes[self.height] = header.bitcoin_hash();
 193                 } else {
 194                         assert_eq!(self.header_hashes.len(), self.height);
 195                         self.header_hashes.push(header.bitcoin_hash());
 196                 }
 197                 self.max_height = cmp::max(self.height, self.max_height);
 198         }
 199
 200         fn disconnect_block(&mut self) {
 201                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 202                         self.height -= 1;
 203                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
 204                         self.manager.block_disconnected(&header);
 205                         self.monitor.block_disconnected(&header);
 206                         let removal_height = self.height;
 207                         self.txids_confirmed.retain(|_, height| {
 208                                 removal_height != *height
 209                         });
 210                 }
 211         }
 212 }
 213
 214 impl<'a> Drop for MoneyLossDetector<'a> {
 215         fn drop(&mut self) {
 216                 if !::std::thread::panicking() {
 217                         // Disconnect all peers
 218                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 219                                 if *peer {
 220                                         self.handler.disconnect_event(&Peer{id: idx as u8, peers_connected: &self.peers});
 221                                 }
 222                         }
 223
 224                         // Force all channels onto the chain (and time out claim txn)
 225                         self.manager.force_close_all_channels();
 226                 }
 227         }
 228 }
 229
 230 struct KeyProvider {
 231         node_secret: SecretKey,
 232 }
 233 impl KeysInterface for KeyProvider {
 234         fn get_node_secret(&self) -> SecretKey {
 235                 self.node_secret.clone()
 236         }
 237
 238         fn get_destination_script(&self) -> Script {
 239                 let secp_ctx = Secp256k1::signing_only();
 240                 let channel_monitor_claim_key = SecretKey::from_slice(&secp_ctx, &hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 241                 let our_channel_monitor_claim_key_hash = Hash160::from_data(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 242                 Builder::new().push_opcode(opcodes::All::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 243         }
 244
 245         fn get_shutdown_pubkey(&self) -> PublicKey {
 246                 let secp_ctx = Secp256k1::signing_only();
 247                 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())
 248         }
 249
 250         fn get_channel_keys(&self, inbound: bool) -> ChannelKeys {
 251                 let secp_ctx = Secp256k1::without_caps();
 252                 if inbound {
 253                         ChannelKeys {
 254                                 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(),
 255                                 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(),
 256                                 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(),
 257                                 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(),
 258                                 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(),
 259                                 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],
 260                         }
 261                 } else {
 262                         ChannelKeys {
 263                                 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(),
 264                                 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(),
 265                                 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(),
 266                                 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(),
 267                                 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(),
 268                                 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],
 269                         }
 270                 }
 271         }
 272
 273         fn get_session_key(&self) -> SecretKey {
 274                 let mut session_key = [0; 32];
 275                 fill_bytes(&mut session_key);
 276                 SecretKey::from_slice(&Secp256k1::without_caps(), &session_key).unwrap()
 277         }
 278 }
 279
 280 #[inline]
 281 pub fn do_test(data: &[u8], logger: &Arc<Logger>) {
 282         reset_rng_state();
 283
 284         let input = Arc::new(InputData {
 285                 data: data.to_vec(),
 286                 read_pos: AtomicUsize::new(0),
 287         });
 288         let fee_est = Arc::new(FuzzEstimator {
 289                 input: input.clone(),
 290         });
 291
 292         macro_rules! get_slice {
 293                 ($len: expr) => {
 294                         match input.get_slice($len as usize) {
 295                                 Some(slice) => slice,
 296                                 None => return,
 297                         }
 298                 }
 299         }
 300
 301         let secp_ctx = Secp256k1::new();
 302         macro_rules! get_pubkey {
 303                 () => {
 304                         match PublicKey::from_slice(&secp_ctx, get_slice!(33)) {
 305                                 Ok(key) => key,
 306                                 Err(_) => return,
 307                         }
 308                 }
 309         }
 310
 311         let our_network_key = match SecretKey::from_slice(&secp_ctx, get_slice!(32)) {
 312                 Ok(key) => key,
 313                 Err(_) => return,
 314         };
 315
 316         let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
 317         let broadcast = Arc::new(TestBroadcaster{});
 318         let monitor = channelmonitor::SimpleManyChannelMonitor::new(watch.clone(), broadcast.clone(), Arc::clone(&logger));
 319
 320         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone() });
 321         let mut config = UserConfig::new();
 322         config.channel_options.fee_proportional_millionths =  slice_to_be32(get_slice!(4));
 323         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
 324         config.channel_limits.min_dust_limit_satoshis = 0;
 325         let channelmanager = ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), watch.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config).unwrap();
 326         let router = Arc::new(Router::new(PublicKey::from_secret_key(&secp_ctx, &keys_manager.get_node_secret()), watch.clone(), Arc::clone(&logger)));
 327
 328         let peers = RefCell::new([false; 256]);
 329         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 330                 chan_handler: channelmanager.clone(),
 331                 route_handler: router.clone(),
 332         }, our_network_key, Arc::clone(&logger)));
 333
 334         let mut should_forward = false;
 335         let mut payments_received: Vec<PaymentHash> = Vec::new();
 336         let mut payments_sent = 0;
 337         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
 338         let mut pending_funding_signatures = HashMap::new();
 339         let mut pending_funding_relay = Vec::new();
 340
 341         loop {
 342                 match get_slice!(1)[0] {
 343                         0 => {
 344                                 let mut new_id = 0;
 345                                 for i in 1..256 {
 346                                         if !peers.borrow()[i-1] {
 347                                                 new_id = i;
 348                                                 break;
 349                                         }
 350                                 }
 351                                 if new_id == 0 { return; }
 352                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 353                                 peers.borrow_mut()[new_id - 1] = true;
 354                         },
 355                         1 => {
 356                                 let mut new_id = 0;
 357                                 for i in 1..256 {
 358                                         if !peers.borrow()[i-1] {
 359                                                 new_id = i;
 360                                                 break;
 361                                         }
 362                                 }
 363                                 if new_id == 0 { return; }
 364                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 365                                 peers.borrow_mut()[new_id - 1] = true;
 366                         },
 367                         2 => {
 368                                 let peer_id = get_slice!(1)[0];
 369                                 if !peers.borrow()[peer_id as usize] { return; }
 370                                 loss_detector.handler.disconnect_event(&Peer{id: peer_id, peers_connected: &peers});
 371                                 peers.borrow_mut()[peer_id as usize] = false;
 372                         },
 373                         3 => {
 374                                 let peer_id = get_slice!(1)[0];
 375                                 if !peers.borrow()[peer_id as usize] { return; }
 376                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0]).to_vec()) {
 377                                         Ok(res) => assert!(!res),
 378                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 379                                 }
 380                         },
 381                         4 => {
 382                                 let value = slice_to_be24(get_slice!(3)) as u64;
 383                                 let route = match router.get_route(&get_pubkey!(), None, &Vec::new(), value, 42) {
 384                                         Ok(route) => route,
 385                                         Err(_) => return,
 386                                 };
 387                                 let mut payment_hash = PaymentHash([0; 32]);
 388                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 389                                 let mut sha = Sha256::engine();
 390                                 sha.input(&payment_hash.0[..]);
 391                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 392                                 payments_sent += 1;
 393                                 match channelmanager.send_payment(route, payment_hash) {
 394                                         Ok(_) => {},
 395                                         Err(_) => return,
 396                                 }
 397                         },
 398                         5 => {
 399                                 let peer_id = get_slice!(1)[0];
 400                                 if !peers.borrow()[peer_id as usize] { return; }
 401                                 let their_key = get_pubkey!();
 402                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 403                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 404                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0).is_err() { return; }
 405                         },
 406                         6 => {
 407                                 let mut channels = channelmanager.list_channels();
 408                                 let channel_id = get_slice!(1)[0] as usize;
 409                                 if channel_id >= channels.len() { return; }
 410                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 411                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
 412                         },
 413                         7 => {
 414                                 if should_forward {
 415                                         channelmanager.process_pending_htlc_forwards();
 416                                         should_forward = false;
 417                                 }
 418                         },
 419                         8 => {
 420                                 for payment in payments_received.drain(..) {
 421                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 422                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 423                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 424                                         // place that anywhere in our preimage.
 425                                         if &payment.0[1..] != &[0; 31] {
 426                                                 channelmanager.fail_htlc_backwards(&payment, 0);
 427                                         } else {
 428                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 429                                                 payment_preimage.0[0] = payment.0[0];
 430                                                 channelmanager.claim_funds(payment_preimage);
 431                                         }
 432                                 }
 433                         },
 434                         9 => {
 435                                 for payment in payments_received.drain(..) {
 436                                         channelmanager.fail_htlc_backwards(&payment, 0);
 437                                 }
 438                         },
 439                         10 => {
 440                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
 441                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
 442                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
 443                                                 }] };
 444                                         let funding_output = 'search_loop: loop {
 445                                                 let funding_txid = tx.txid();
 446                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
 447                                                         let outpoint = OutPoint::new(funding_txid, 0);
 448                                                         for chan in channelmanager.list_channels() {
 449                                                                 if chan.channel_id == outpoint.to_channel_id() {
 450                                                                         tx.version += 1;
 451                                                                         continue 'search_loop;
 452                                                                 }
 453                                                         }
 454                                                         break outpoint;
 455                                                 }
 456                                                 tx.version += 1;
 457                                                 if tx.version > 0xff {
 458                                                         continue 'outer_loop;
 459                                                 }
 460                                         };
 461                                         channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
 462                                         pending_funding_signatures.insert(funding_output, tx);
 463                                 }
 464                         },
 465                         11 => {
 466                                 if !pending_funding_relay.is_empty() {
 467                                         loss_detector.connect_block(&pending_funding_relay[..]);
 468                                         for _ in 2..100 {
 469                                                 loss_detector.connect_block(&[]);
 470                                         }
 471                                 }
 472                                 for tx in pending_funding_relay.drain(..) {
 473                                         loss_detector.funding_txn.push(tx);
 474                                 }
 475                         },
 476                         12 => {
 477                                 let txlen = slice_to_be16(get_slice!(2));
 478                                 if txlen == 0 {
 479                                         loss_detector.connect_block(&[]);
 480                                 } else {
 481                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 482                                         if let Ok(tx) = txres {
 483                                                 loss_detector.connect_block(&[tx]);
 484                                         } else {
 485                                                 return;
 486                                         }
 487                                 }
 488                         },
 489                         13 => {
 490                                 loss_detector.disconnect_block();
 491                         },
 492                         14 => {
 493                                 let mut channels = channelmanager.list_channels();
 494                                 let channel_id = get_slice!(1)[0] as usize;
 495                                 if channel_id >= channels.len() { return; }
 496                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 497                                 channelmanager.force_close_channel(&channels[channel_id].channel_id);
 498                         },
 499                         _ => return,
 500                 }
 501                 loss_detector.handler.process_events();
 502                 for event in loss_detector.manager.get_and_clear_pending_events() {
 503                         match event {
 504                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
 505                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
 506                                 },
 507                                 Event::FundingBroadcastSafe { funding_txo, .. } => {
 508                                         pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
 509                                 },
 510                                 Event::PaymentReceived { payment_hash, .. } => {
 511                                         payments_received.push(payment_hash);
 512                                 },
 513                                 Event::PaymentSent {..} => {},
 514                                 Event::PaymentFailed {..} => {},
 515                                 Event::PendingHTLCsForwardable {..} => {
 516                                         should_forward = true;
 517                                 },
 518                                 Event::SpendableOutputs {..} => {},
 519                         }
 520                 }
 521         }
 522 }
 523
 524 #[cfg(feature = "afl")]
 525 #[macro_use] extern crate afl;
 526 #[cfg(feature = "afl")]
 527 fn main() {
 528         fuzz!(|data| {
 529                 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 530                 do_test(data, &logger);
 531         });
 532 }
 533
 534 #[cfg(feature = "honggfuzz")]
 535 #[macro_use] extern crate honggfuzz;
 536 #[cfg(feature = "honggfuzz")]
 537 fn main() {
 538         loop {
 539                 fuzz!(|data| {
 540                         let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 541                         do_test(data, &logger);
 542                 });
 543         }
 544 }
 545
 546 #[cfg(feature = "libfuzzer_fuzz")]
 547 #[macro_use] extern crate libfuzzer_sys;
 548 #[cfg(feature = "libfuzzer_fuzz")]
 549 fuzz_target!(|data: &[u8]| {
 550         let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 551         do_test(data, &logger);
 552 });
 553
 554 extern crate hex;
 555 #[cfg(test)]
 556 mod tests {
 557         use utils::test_logger;
 558         use lightning::util::logger::{Logger, Record};
 559         use std::collections::HashMap;
 560         use std::sync::{Arc, Mutex};
 561
 562         #[test]
 563         fn duplicate_crash() {
 564                 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
 565                 super::do_test(&::hex::decode("00").unwrap(), &logger);
 566         }
 567
 568         struct TrackingLogger {
 569                 /// (module, message) -> count
 570                 pub lines: Mutex<HashMap<(String, String), usize>>,
 571         }
 572         impl Logger for TrackingLogger {
 573                 fn log(&self, record: &Record) {
 574                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 575                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 576                 }
 577         }
 578
 579         #[test]
 580         fn test_no_existing_test_breakage() {
 581                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 582                 // changes (such as requesting feerate info in a new place), we run a pretty full
 583                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 584                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 585                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 586
 587                 // What each byte represents is broken down below, and then everything is concatenated into
 588                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
 589
 590                 // 0000000000000000000000000000000000000000000000000000000000000000 - our network key
 591                 // 00000000 - fee_proportional_millionths
 592                 // 01 - announce_channels_publicly
 593                 //
 594                 // 00 - new outbound connection with id 0
 595                 // 030000000000000000000000000000000000000000000000000000000000000000 - peer's pubkey
 596                 // 030032 - inbound read from peer id 0 of len 50
 597                 // 00 030000000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
 598                 //
 599                 // 030012 - inbound read from peer id 0 of len 18
 600                 // 0006 03000000000000000000000000000000 - message header indicating message length 6
 601                 // 030016 - inbound read from peer id 0 of len 22
 602                 // 0010 00000000 03000000000000000000000000000000 - init message with no features (type 16)
 603                 //
 604                 // 030012 - inbound read from peer id 0 of len 18
 605                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
 606                 // 0300fe - inbound read from peer id 0 of len 254
 607                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000222 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
 608                 // 030053 - inbound read from peer id 0 of len 83
 609                 // 030000000000000000000000000000000000000000000000000000000000000005 030000000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
 610                 //
 611                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses)
 612                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 613                 //
 614                 // 030012 - inbound read from peer id 0 of len 18
 615                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
 616                 // 030094 - inbound read from peer id 0 of len 148
 617                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 2e000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 03000000000000000000000000000000 - funding_created and mac
 618                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 619                 //
 620                 // 0c005e - connect a block with one transaction of len 94
 621                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 622                 // 0c0000 - connect a block with no transactions
 623                 // 0c0000 - connect a block with no transactions
 624                 // 0c0000 - connect a block with no transactions
 625                 // 0c0000 - connect a block with no transactions
 626                 // 0c0000 - connect a block with no transactions
 627                 // 0c0000 - connect a block with no transactions
 628                 // 0c0000 - connect a block with no transactions
 629                 // 0c0000 - connect a block with no transactions
 630                 // 0c0000 - connect a block with no transactions
 631                 // 0c0000 - connect a block with no transactions
 632                 // 0c0000 - connect a block with no transactions
 633                 // 0c0000 - connect a block with no transactions
 634                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
 635                 //
 636                 // 030012 - inbound read from peer id 0 of len 18
 637                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
 638                 // 030053 - inbound read from peer id 0 of len 83
 639                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
 640                 //
 641                 // 01 - new inbound connection with id 1
 642                 // 030132 - inbound read from peer id 1 of len 50
 643                 // 0003000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000 - inbound noise act 1
 644                 // 030142 - inbound read from peer id 1 of len 66
 645                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
 646                 //
 647                 // 030112 - inbound read from peer id 1 of len 18
 648                 // 0006 01000000000000000000000000000000 - message header indicating message length 6
 649                 // 030116 - inbound read from peer id 1 of len 22
 650                 // 0010 00000000 01000000000000000000000000000000 - init message with no features (type 16)
 651                 //
 652                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
 653                 // 00fd00fd00fd - Three feerate requests (all returning min feerate)
 654                 //
 655                 // 030112 - inbound read from peer id 1 of len 18
 656                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
 657                 // 0301ff - inbound read from peer id 1 of len 255
 658                 // 0021 0200000000000000020000000000000002000000000000000200000000000000 000000000000001a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 03000000000000000000000000000000 - beginning of accept_channel
 659                 // 030121 - inbound read from peer id 1 of len 33
 660                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
 661                 //
 662                 // 0a - create the funding transaction (client should send funding_created now)
 663                 //
 664                 // 030112 - inbound read from peer id 1 of len 18
 665                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
 666                 // 030172 - inbound read from peer id 1 of len 114
 667                 // 0023 3f00000000000000000000000000000000000000000000000000000000000000f6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 01000000000000000000000000000000 - funding_signed message and mac
 668                 //
 669                 // 0b - broadcast funding transaction
 670                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
 671                 //
 672                 // 030112 - inbound read from peer id 1 of len 18
 673                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
 674                 // 030153 - inbound read from peer id 1 of len 83
 675                 // 0024 3f00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
 676                 //
 677                 // 030012 - inbound read from peer id 0 of len 18
 678                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 679                 // 0300ff - inbound read from peer id 0 of len 255
 680                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 681                 // 0300ff - inbound read from peer id 0 of len 255
 682                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 683                 // 0300ff - inbound read from peer id 0 of len 255
 684                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 685                 // 0300ff - inbound read from peer id 0 of len 255
 686                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 687                 // 0300ff - inbound read from peer id 0 of len 255
 688                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 689                 // 0300c1 - inbound read from peer id 0 of len 193
 690                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 691                 //
 692                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 693                 //
 694                 // 030012 - inbound read from peer id 0 of len 18
 695                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 696                 // 030074 - inbound read from peer id 0 of len 116
 697                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 3f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 698                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
 699                 //
 700                 // 030012 - inbound read from peer id 0 of len 18
 701                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 702                 // 030073 - inbound read from peer id 0 of len 115
 703                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 704                 //
 705                 // 07 - process the now-pending HTLC forward
 706                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
 707                 //
 708                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
 709                 // 030112 - inbound read from peer id 1 of len 18
 710                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 711                 // 030174 - inbound read from peer id 1 of len 116
 712                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 f7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 713                 //
 714                 // 030112 - inbound read from peer id 1 of len 18
 715                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 716                 // 030173 - inbound read from peer id 1 of len 115
 717                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 718                 //
 719                 // 030112 - inbound read from peer id 1 of len 18
 720                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
 721                 // 03015a - inbound read from peer id 1 of len 90
 722                 // 0082 3f00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
 723                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
 724                 //
 725                 // 030112 - inbound read from peer id 1 of len 18
 726                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 727                 // 030174 - inbound read from peer id 1 of len 116
 728                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 fb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 729                 //
 730                 // 030112 - inbound read from peer id 1 of len 18
 731                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 732                 // 030173 - inbound read from peer id 1 of len 115
 733                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 734                 //
 735                 // - before responding to the commitment_signed generated above, send a new HTLC
 736                 // 030012 - inbound read from peer id 0 of len 18
 737                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 738                 // 0300ff - inbound read from peer id 0 of len 255
 739                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 740                 // 0300ff - inbound read from peer id 0 of len 255
 741                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 742                 // 0300ff - inbound read from peer id 0 of len 255
 743                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 744                 // 0300ff - inbound read from peer id 0 of len 255
 745                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 746                 // 0300ff - inbound read from peer id 0 of len 255
 747                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 748                 // 0300c1 - inbound read from peer id 0 of len 193
 749                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 750                 //
 751                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 752                 //
 753                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
 754                 // 030012 - inbound read from peer id 0 of len 18
 755                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 756                 // 030073 - inbound read from peer id 0 of len 115
 757                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 758                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 759                 //
 760                 // 030012 - inbound read from peer id 0 of len 18
 761                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 762                 // 030074 - inbound read from peer id 0 of len 116
 763                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 cc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 764                 //
 765                 // 030012 - inbound read from peer id 0 of len 18
 766                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 767                 // 030073 - inbound read from peer id 0 of len 115
 768                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 769                 //
 770                 // 07 - process the now-pending HTLC forward
 771                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 772                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
 773                 //
 774                 // 030112 - inbound read from peer id 1 of len 18
 775                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 776                 // 030174 - inbound read from peer id 1 of len 116
 777                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 fa000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 778                 //
 779                 // 030112 - inbound read from peer id 1 of len 18
 780                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 781                 // 030173 - inbound read from peer id 1 of len 115
 782                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 783                 //
 784                 // 030112 - inbound read from peer id 1 of len 18
 785                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
 786                 // 03013c - inbound read from peer id 1 of len 60
 787                 // 0083 3f00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
 788                 //
 789                 // 030112 - inbound read from peer id 1 of len 18
 790                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 791                 // 030174 - inbound read from peer id 1 of len 116
 792                 // 0084 3f00000000000000000000000000000000000000000000000000000000000000 fd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
 793                 //
 794                 // 030112 - inbound read from peer id 1 of len 18
 795                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 796                 // 030173 - inbound read from peer id 1 of len 115
 797                 // 0085 3f00000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 798                 //
 799                 // 07 - process the now-pending HTLC forward
 800                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
 801                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
 802                 //
 803                 // 030012 - inbound read from peer id 0 of len 18
 804                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 805                 // 030073 - inbound read from peer id 0 of len 115
 806                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 807                 //
 808                 // 030012 - inbound read from peer id 0 of len 18
 809                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 810                 // 030074 - inbound read from peer id 0 of len 116
 811                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 3d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
 812                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
 813                 //
 814                 // 030012 - inbound read from peer id 0 of len 18
 815                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 816                 // 0300ff - inbound read from peer id 0 of len 255
 817                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e0000010000000000000003e800000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 818                 // 0300ff - inbound read from peer id 0 of len 255
 819                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 820                 // 0300ff - inbound read from peer id 0 of len 255
 821                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 822                 // 0300ff - inbound read from peer id 0 of len 255
 823                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 824                 // 0300ff - inbound read from peer id 0 of len 255
 825                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 826                 // 0300c1 - inbound read from peer id 0 of len 193
 827                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 828                 //
 829                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 830                 //
 831                 // 030012 - inbound read from peer id 0 of len 18
 832                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
 833                 // 0300b4 - inbound read from peer id 0 of len 180
 834                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 07000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0001 ba000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000d 00000000000000 03000000000000000000000000000000 - commitment_signed and mac
 835                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 836                 //
 837                 // 030012 - inbound read from peer id 0 of len 18
 838                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 839                 // 030073 - inbound read from peer id 0 of len 115
 840                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0400000000000000000000000000000000000000000000000000000000000000 030600000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 841                 //
 842                 // 07 - process the now-pending HTLC forward
 843                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 844                 //
 845                 // 0c007d - connect a block with one transaction of len 125
 846                 // 02000000013f00000000000000000000000000000000000000000000000000000000000000000000000000000080020001000000000000220020e2000000000000000000000000000000000000000000000000000000000000006cc10000000000001600142e0000000000000000000000000000000000000005000020 - the funding transaction
 847                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses)
 848                 // 0c005e - connect a block with one transaction of len 94
 849                 // 0200000001fb00000000000000000000000000000000000000000000000000000000000000000000000000000000014f00000000000000220020f60000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 850                 //
 851                 // 07 - process the now-pending HTLC forward
 852                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 853
 854                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
 855                 super::do_test(&::hex::decode("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 856
 857                 let log_entries = logger.lines.lock().unwrap();
 858                 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
 859                 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
 860                 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
 861                 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
 862                 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
 863                 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
 864                 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
 865                 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
 866                 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
 867                 assert_eq!(log_entries.get(&("lightning::ln::channelmonitor".to_string(), "Input spending 00000000000000000000000000000000000000000000000000000000000000fb:0 resolves HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 from remote commitment tx".to_string())), Some(&1)); // 10
 868         }
 869 }