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

   1 // This file is Copyright its original authors, visible in version control
   2 // history.
   3 //
   4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
   5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
   7 // You may not use this file except in accordance with one or both of these
   8 // licenses.
   9
  10 //! Test that no series of bytes received over the wire/connections created/payments sent can
  11 //! result in a crash. We do this by standing up a node and then reading bytes from input to denote
  12 //! actions such as creating new inbound/outbound connections, bytes to be read from a connection,
  13 //! or payments to send/ways to handle events generated.
  14 //! This test has been very useful, though due to its complexity good starting inputs are critical.
  15
  16 use bitcoin::blockdata::block::BlockHeader;
  17 use bitcoin::blockdata::transaction::{Transaction, TxOut};
  18 use bitcoin::blockdata::script::{Builder, Script};
  19 use bitcoin::blockdata::opcodes;
  20 use bitcoin::consensus::encode::deserialize;
  21 use bitcoin::network::constants::Network;
  22 use bitcoin::blockdata::constants::genesis_block;
  23
  24 use bitcoin::hashes::Hash as TraitImport;
  25 use bitcoin::hashes::HashEngine as TraitImportEngine;
  26 use bitcoin::hashes::sha256::Hash as Sha256;
  27 use bitcoin::hash_types::{Txid, BlockHash, WPubkeyHash};
  28
  29 use lightning::chain;
  30 use lightning::chain::{BestBlock, Confirm, Listen};
  31 use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator};
  32 use lightning::chain::chainmonitor;
  33 use lightning::chain::transaction::OutPoint;
  34 use lightning::chain::keysinterface::{InMemorySigner, KeysInterface};
  35 use lightning::ln::{PaymentHash, PaymentPreimage, PaymentSecret};
  36 use lightning::ln::channelmanager::{ChainParameters, ChannelManager};
  37 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor,IgnoringMessageHandler};
  38 use lightning::ln::msgs::DecodeError;
  39 use lightning::ln::script::ShutdownScript;
  40 use lightning::routing::router::get_route;
  41 use lightning::routing::network_graph::NetGraphMsgHandler;
  42 use lightning::util::config::UserConfig;
  43 use lightning::util::errors::APIError;
  44 use lightning::util::events::Event;
  45 use lightning::util::enforcing_trait_impls::{EnforcingSigner, EnforcementState};
  46 use lightning::util::logger::Logger;
  47 use lightning::util::ser::Readable;
  48
  49 use utils::test_logger;
  50 use utils::test_persister::TestPersister;
  51
  52 use bitcoin::secp256k1::key::{PublicKey,SecretKey};
  53 use bitcoin::secp256k1::recovery::RecoverableSignature;
  54 use bitcoin::secp256k1::Secp256k1;
  55
  56 use std::cell::RefCell;
  57 use std::collections::{HashMap, hash_map};
  58 use std::cmp;
  59 use std::sync::{Arc, Mutex};
  60 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
  61
  62 #[inline]
  63 pub fn slice_to_be16(v: &[u8]) -> u16 {
  64         ((v[0] as u16) << 8*1) |
  65         ((v[1] as u16) << 8*0)
  66 }
  67
  68 #[inline]
  69 pub fn slice_to_be24(v: &[u8]) -> u32 {
  70         ((v[0] as u32) << 8*2) |
  71         ((v[1] as u32) << 8*1) |
  72         ((v[2] as u32) << 8*0)
  73 }
  74
  75 #[inline]
  76 pub fn slice_to_be32(v: &[u8]) -> u32 {
  77         ((v[0] as u32) << 8*3) |
  78         ((v[1] as u32) << 8*2) |
  79         ((v[2] as u32) << 8*1) |
  80         ((v[3] as u32) << 8*0)
  81 }
  82
  83 #[inline]
  84 pub fn be64_to_array(u: u64) -> [u8; 8] {
  85         let mut v = [0; 8];
  86         v[0] = ((u >> 8*7) & 0xff) as u8;
  87         v[1] = ((u >> 8*6) & 0xff) as u8;
  88         v[2] = ((u >> 8*5) & 0xff) as u8;
  89         v[3] = ((u >> 8*4) & 0xff) as u8;
  90         v[4] = ((u >> 8*3) & 0xff) as u8;
  91         v[5] = ((u >> 8*2) & 0xff) as u8;
  92         v[6] = ((u >> 8*1) & 0xff) as u8;
  93         v[7] = ((u >> 8*0) & 0xff) as u8;
  94         v
  95 }
  96
  97 struct InputData {
  98         data: Vec<u8>,
  99         read_pos: AtomicUsize,
 100 }
 101 impl InputData {
 102         fn get_slice(&self, len: usize) -> Option<&[u8]> {
 103                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
 104                 if self.data.len() < old_pos + len {
 105                         return None;
 106                 }
 107                 Some(&self.data[old_pos..old_pos + len])
 108         }
 109 }
 110
 111 struct FuzzEstimator {
 112         input: Arc<InputData>,
 113 }
 114 impl FeeEstimator for FuzzEstimator {
 115         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u32 {
 116                 //TODO: We should actually be testing at least much more than 64k...
 117                 match self.input.get_slice(2) {
 118                         Some(slice) => cmp::max(slice_to_be16(slice) as u32, 253),
 119                         None => 253
 120                 }
 121         }
 122 }
 123
 124 struct TestBroadcaster {
 125         txn_broadcasted: Mutex<Vec<Transaction>>,
 126 }
 127 impl BroadcasterInterface for TestBroadcaster {
 128         fn broadcast_transaction(&self, tx: &Transaction) {
 129                 self.txn_broadcasted.lock().unwrap().push(tx.clone());
 130         }
 131 }
 132
 133 #[derive(Clone)]
 134 struct Peer<'a> {
 135         id: u8,
 136         peers_connected: &'a RefCell<[bool; 256]>,
 137 }
 138 impl<'a> SocketDescriptor for Peer<'a> {
 139         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
 140                 data.len()
 141         }
 142         fn disconnect_socket(&mut self) {
 143                 assert!(self.peers_connected.borrow()[self.id as usize]);
 144                 self.peers_connected.borrow_mut()[self.id as usize] = false;
 145         }
 146 }
 147 impl<'a> PartialEq for Peer<'a> {
 148         fn eq(&self, other: &Self) -> bool {
 149                 self.id == other.id
 150         }
 151 }
 152 impl<'a> Eq for Peer<'a> {}
 153 impl<'a> std::hash::Hash for Peer<'a> {
 154         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
 155                 self.id.hash(h)
 156         }
 157 }
 158
 159 type ChannelMan = ChannelManager<
 160         EnforcingSigner,
 161         Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 162         Arc<TestBroadcaster>, Arc<KeyProvider>, Arc<FuzzEstimator>, Arc<dyn Logger>>;
 163 type PeerMan<'a> = PeerManager<Peer<'a>, Arc<ChannelMan>, Arc<NetGraphMsgHandler<Arc<dyn chain::Access>, Arc<dyn Logger>>>, Arc<dyn Logger>, IgnoringMessageHandler>;
 164
 165 struct MoneyLossDetector<'a> {
 166         manager: Arc<ChannelMan>,
 167         monitor: Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 168         handler: PeerMan<'a>,
 169
 170         peers: &'a RefCell<[bool; 256]>,
 171         funding_txn: Vec<Transaction>,
 172         txids_confirmed: HashMap<Txid, usize>,
 173         header_hashes: Vec<(BlockHash, u32)>,
 174         height: usize,
 175         max_height: usize,
 176         blocks_connected: u32,
 177 }
 178 impl<'a> MoneyLossDetector<'a> {
 179         pub fn new(peers: &'a RefCell<[bool; 256]>,
 180                    manager: Arc<ChannelMan>,
 181                    monitor: Arc<chainmonitor::ChainMonitor<EnforcingSigner, Arc<dyn chain::Filter>, Arc<TestBroadcaster>, Arc<FuzzEstimator>, Arc<dyn Logger>, Arc<TestPersister>>>,
 182                    handler: PeerMan<'a>) -> Self {
 183                 MoneyLossDetector {
 184                         manager,
 185                         monitor,
 186                         handler,
 187
 188                         peers,
 189                         funding_txn: Vec::new(),
 190                         txids_confirmed: HashMap::new(),
 191                         header_hashes: vec![(genesis_block(Network::Bitcoin).block_hash(), 0)],
 192                         height: 0,
 193                         max_height: 0,
 194                         blocks_connected: 0,
 195                 }
 196         }
 197
 198         fn connect_block(&mut self, all_txn: &[Transaction]) {
 199                 let mut txdata = Vec::with_capacity(all_txn.len());
 200                 for (idx, tx) in all_txn.iter().enumerate() {
 201                         let txid = tx.txid();
 202                         match self.txids_confirmed.entry(txid) {
 203                                 hash_map::Entry::Vacant(e) => {
 204                                         e.insert(self.height);
 205                                         txdata.push((idx + 1, tx));
 206                                 },
 207                                 _ => {},
 208                         }
 209                 }
 210
 211                 self.blocks_connected += 1;
 212                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height].0, merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
 213                 self.height += 1;
 214                 self.manager.transactions_confirmed(&header, &txdata, self.height as u32);
 215                 self.manager.best_block_updated(&header, self.height as u32);
 216                 (*self.monitor).transactions_confirmed(&header, &txdata, self.height as u32);
 217                 (*self.monitor).best_block_updated(&header, self.height as u32);
 218                 if self.header_hashes.len() > self.height {
 219                         self.header_hashes[self.height] = (header.block_hash(), self.blocks_connected);
 220                 } else {
 221                         assert_eq!(self.header_hashes.len(), self.height);
 222                         self.header_hashes.push((header.block_hash(), self.blocks_connected));
 223                 }
 224                 self.max_height = cmp::max(self.height, self.max_height);
 225         }
 226
 227         fn disconnect_block(&mut self) {
 228                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
 229                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height - 1].0, merkle_root: Default::default(), time: self.header_hashes[self.height].1, bits: 42, nonce: 42 };
 230                         self.manager.block_disconnected(&header, self.height as u32);
 231                         self.monitor.block_disconnected(&header, self.height as u32);
 232                         self.height -= 1;
 233                         let removal_height = self.height;
 234                         self.txids_confirmed.retain(|_, height| {
 235                                 removal_height != *height
 236                         });
 237                 }
 238         }
 239 }
 240
 241 impl<'a> Drop for MoneyLossDetector<'a> {
 242         fn drop(&mut self) {
 243                 if !::std::thread::panicking() {
 244                         // Disconnect all peers
 245                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
 246                                 if *peer {
 247                                         self.handler.socket_disconnected(&Peer{id: idx as u8, peers_connected: &self.peers});
 248                                 }
 249                         }
 250
 251                         // Force all channels onto the chain (and time out claim txn)
 252                         self.manager.force_close_all_channels();
 253                 }
 254         }
 255 }
 256
 257 struct KeyProvider {
 258         node_secret: SecretKey,
 259         counter: AtomicU64,
 260 }
 261 impl KeysInterface for KeyProvider {
 262         type Signer = EnforcingSigner;
 263
 264         fn get_node_secret(&self) -> SecretKey {
 265                 self.node_secret.clone()
 266         }
 267
 268         fn get_destination_script(&self) -> Script {
 269                 let secp_ctx = Secp256k1::signing_only();
 270                 let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
 271                 let our_channel_monitor_claim_key_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
 272                 Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
 273         }
 274
 275         fn get_shutdown_scriptpubkey(&self) -> ShutdownScript {
 276                 let secp_ctx = Secp256k1::signing_only();
 277                 let secret_key = SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1]).unwrap();
 278                 let pubkey_hash = WPubkeyHash::hash(&PublicKey::from_secret_key(&secp_ctx, &secret_key).serialize());
 279                 ShutdownScript::new_p2wpkh(&pubkey_hash)
 280         }
 281
 282         fn get_channel_signer(&self, inbound: bool, channel_value_satoshis: u64) -> EnforcingSigner {
 283                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
 284                 let secp_ctx = Secp256k1::signing_only();
 285                 EnforcingSigner::new(if inbound {
 286                         InMemorySigner::new(
 287                                 &secp_ctx,
 288                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, ctr]).unwrap(),
 289                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, ctr]).unwrap(),
 290                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, ctr]).unwrap(),
 291                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, ctr]).unwrap(),
 292                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, ctr]).unwrap(),
 293                                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, ctr],
 294                                 channel_value_satoshis,
 295                                 [0; 32]
 296                         )
 297                 } else {
 298                         InMemorySigner::new(
 299                                 &secp_ctx,
 300                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, ctr]).unwrap(),
 301                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, ctr]).unwrap(),
 302                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, ctr]).unwrap(),
 303                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 10, ctr]).unwrap(),
 304                                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 11, ctr]).unwrap(),
 305                                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, ctr],
 306                                 channel_value_satoshis,
 307                                 [0; 32]
 308                         )
 309                 })
 310         }
 311
 312         fn get_secure_random_bytes(&self) -> [u8; 32] {
 313                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 314                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 315                 (ctr >> 8*7) as u8, (ctr >> 8*6) as u8, (ctr >> 8*5) as u8, (ctr >> 8*4) as u8, (ctr >> 8*3) as u8, (ctr >> 8*2) as u8, (ctr >> 8*1) as u8, 14, (ctr >> 8*0) as u8]
 316         }
 317
 318         fn read_chan_signer(&self, mut data: &[u8]) -> Result<EnforcingSigner, DecodeError> {
 319                 let inner: InMemorySigner = Readable::read(&mut data)?;
 320                 let state = Arc::new(Mutex::new(EnforcementState::new()));
 321
 322                 Ok(EnforcingSigner::new_with_revoked(
 323                         inner,
 324                         state,
 325                         false
 326                 ))
 327         }
 328
 329         fn sign_invoice(&self, _invoice_preimage: Vec<u8>) -> Result<RecoverableSignature, ()> {
 330                 unreachable!()
 331         }
 332 }
 333
 334 #[inline]
 335 pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
 336         let input = Arc::new(InputData {
 337                 data: data.to_vec(),
 338                 read_pos: AtomicUsize::new(0),
 339         });
 340         let fee_est = Arc::new(FuzzEstimator {
 341                 input: input.clone(),
 342         });
 343
 344         macro_rules! get_slice {
 345                 ($len: expr) => {
 346                         match input.get_slice($len as usize) {
 347                                 Some(slice) => slice,
 348                                 None => return,
 349                         }
 350                 }
 351         }
 352
 353         macro_rules! get_pubkey {
 354                 () => {
 355                         match PublicKey::from_slice(get_slice!(33)) {
 356                                 Ok(key) => key,
 357                                 Err(_) => return,
 358                         }
 359                 }
 360         }
 361
 362         let our_network_key = match SecretKey::from_slice(get_slice!(32)) {
 363                 Ok(key) => key,
 364                 Err(_) => return,
 365         };
 366
 367         let broadcast = Arc::new(TestBroadcaster{ txn_broadcasted: Mutex::new(Vec::new()) });
 368         let monitor = Arc::new(chainmonitor::ChainMonitor::new(None, broadcast.clone(), Arc::clone(&logger), fee_est.clone(), Arc::new(TestPersister{})));
 369
 370         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone(), counter: AtomicU64::new(0) });
 371         let mut config = UserConfig::default();
 372         config.channel_options.forwarding_fee_proportional_millionths =  slice_to_be32(get_slice!(4));
 373         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
 374         let network = Network::Bitcoin;
 375         let params = ChainParameters {
 376                 network,
 377                 best_block: BestBlock::from_genesis(network),
 378         };
 379         let channelmanager = Arc::new(ChannelManager::new(fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, params));
 380         let our_id = PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret());
 381         let net_graph_msg_handler = Arc::new(NetGraphMsgHandler::new(genesis_block(network).block_hash(), None, Arc::clone(&logger)));
 382
 383         let peers = RefCell::new([false; 256]);
 384         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
 385                 chan_handler: channelmanager.clone(),
 386                 route_handler: net_graph_msg_handler.clone(),
 387         }, our_network_key, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 15, 0], Arc::clone(&logger), IgnoringMessageHandler{}));
 388
 389         let mut should_forward = false;
 390         let mut payments_received: Vec<PaymentHash> = Vec::new();
 391         let mut payments_sent = 0;
 392         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
 393         let mut pending_funding_signatures = HashMap::new();
 394
 395         loop {
 396                 match get_slice!(1)[0] {
 397                         0 => {
 398                                 let mut new_id = 0;
 399                                 for i in 1..256 {
 400                                         if !peers.borrow()[i-1] {
 401                                                 new_id = i;
 402                                                 break;
 403                                         }
 404                                 }
 405                                 if new_id == 0 { return; }
 406                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 407                                 peers.borrow_mut()[new_id - 1] = true;
 408                         },
 409                         1 => {
 410                                 let mut new_id = 0;
 411                                 for i in 1..256 {
 412                                         if !peers.borrow()[i-1] {
 413                                                 new_id = i;
 414                                                 break;
 415                                         }
 416                                 }
 417                                 if new_id == 0 { return; }
 418                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
 419                                 peers.borrow_mut()[new_id - 1] = true;
 420                         },
 421                         2 => {
 422                                 let peer_id = get_slice!(1)[0];
 423                                 if !peers.borrow()[peer_id as usize] { return; }
 424                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
 425                                 peers.borrow_mut()[peer_id as usize] = false;
 426                         },
 427                         3 => {
 428                                 let peer_id = get_slice!(1)[0];
 429                                 if !peers.borrow()[peer_id as usize] { return; }
 430                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
 431                                         Ok(res) => assert!(!res),
 432                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
 433                                 }
 434                         },
 435                         4 => {
 436                                 let value = slice_to_be24(get_slice!(3)) as u64;
 437                                 let route = match get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &get_pubkey!(), None, None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 438                                         Ok(route) => route,
 439                                         Err(_) => return,
 440                                 };
 441                                 let mut payment_hash = PaymentHash([0; 32]);
 442                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 443                                 let mut sha = Sha256::engine();
 444                                 sha.input(&payment_hash.0[..]);
 445                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 446                                 payments_sent += 1;
 447                                 match channelmanager.send_payment(&route, payment_hash, &None) {
 448                                         Ok(_) => {},
 449                                         Err(_) => return,
 450                                 }
 451                         },
 452                         15 => {
 453                                 let value = slice_to_be24(get_slice!(3)) as u64;
 454                                 let mut route = match get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &get_pubkey!(), None, None, &Vec::new(), value, 42, Arc::clone(&logger)) {
 455                                         Ok(route) => route,
 456                                         Err(_) => return,
 457                                 };
 458                                 route.paths.push(route.paths[0].clone());
 459                                 let mut payment_hash = PaymentHash([0; 32]);
 460                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 461                                 let mut sha = Sha256::engine();
 462                                 sha.input(&payment_hash.0[..]);
 463                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
 464                                 payments_sent += 1;
 465                                 let mut payment_secret = PaymentSecret([0; 32]);
 466                                 payment_secret.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
 467                                 payments_sent += 1;
 468                                 match channelmanager.send_payment(&route, payment_hash, &Some(payment_secret)) {
 469                                         Ok(_) => {},
 470                                         Err(_) => return,
 471                                 }
 472                         },
 473                         5 => {
 474                                 let peer_id = get_slice!(1)[0];
 475                                 if !peers.borrow()[peer_id as usize] { return; }
 476                                 let their_key = get_pubkey!();
 477                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
 478                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
 479                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None).is_err() { return; }
 480                         },
 481                         6 => {
 482                                 let mut channels = channelmanager.list_channels();
 483                                 let channel_id = get_slice!(1)[0] as usize;
 484                                 if channel_id >= channels.len() { return; }
 485                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 486                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
 487                         },
 488                         7 => {
 489                                 if should_forward {
 490                                         channelmanager.process_pending_htlc_forwards();
 491                                         should_forward = false;
 492                                 }
 493                         },
 494                         8 => {
 495                                 for payment in payments_received.drain(..) {
 496                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
 497                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
 498                                         // fulfill this HTLC, but if they are, we can just take the first byte and
 499                                         // place that anywhere in our preimage.
 500                                         if &payment.0[1..] != &[0; 31] {
 501                                                 channelmanager.fail_htlc_backwards(&payment);
 502                                         } else {
 503                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
 504                                                 payment_preimage.0[0] = payment.0[0];
 505                                                 channelmanager.claim_funds(payment_preimage);
 506                                         }
 507                                 }
 508                         },
 509                         16 => {
 510                                 let payment_preimage = PaymentPreimage(keys_manager.get_secure_random_bytes());
 511                                 let mut sha = Sha256::engine();
 512                                 sha.input(&payment_preimage.0[..]);
 513                                 let payment_hash = PaymentHash(Sha256::from_engine(sha).into_inner());
 514                                 // Note that this may fail - our hashes may collide and we'll end up trying to
 515                                 // double-register the same payment_hash.
 516                                 let _ = channelmanager.create_inbound_payment_for_hash(payment_hash, None, 1, 0);
 517                         },
 518                         9 => {
 519                                 for payment in payments_received.drain(..) {
 520                                         channelmanager.fail_htlc_backwards(&payment);
 521                                 }
 522                         },
 523                         10 => {
 524                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
 525                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
 526                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
 527                                                 }] };
 528                                         let funding_output = 'search_loop: loop {
 529                                                 let funding_txid = tx.txid();
 530                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
 531                                                         let outpoint = OutPoint { txid: funding_txid, index: 0 };
 532                                                         for chan in channelmanager.list_channels() {
 533                                                                 if chan.channel_id == outpoint.to_channel_id() {
 534                                                                         tx.version += 1;
 535                                                                         continue 'search_loop;
 536                                                                 }
 537                                                         }
 538                                                         break outpoint;
 539                                                 }
 540                                                 tx.version += 1;
 541                                                 if tx.version > 0xff {
 542                                                         continue 'outer_loop;
 543                                                 }
 544                                         };
 545                                         if let Err(e) = channelmanager.funding_transaction_generated(&funding_generation.0, tx.clone()) {
 546                                                 // It's possible the channel has been closed in the mean time, but any other
 547                                                 // failure may be a bug.
 548                                                 if let APIError::ChannelUnavailable { err } = e {
 549                                                         assert_eq!(err, "No such channel");
 550                                                 } else { panic!(); }
 551                                         }
 552                                         pending_funding_signatures.insert(funding_output, tx);
 553                                 }
 554                         },
 555                         11 => {
 556                                 let mut txn = broadcast.txn_broadcasted.lock().unwrap().split_off(0);
 557                                 if !txn.is_empty() {
 558                                         loss_detector.connect_block(&txn[..]);
 559                                         for _ in 2..100 {
 560                                                 loss_detector.connect_block(&[]);
 561                                         }
 562                                 }
 563                                 for tx in txn.drain(..) {
 564                                         loss_detector.funding_txn.push(tx);
 565                                 }
 566                         },
 567                         12 => {
 568                                 let txlen = slice_to_be16(get_slice!(2));
 569                                 if txlen == 0 {
 570                                         loss_detector.connect_block(&[]);
 571                                 } else {
 572                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
 573                                         if let Ok(tx) = txres {
 574                                                 let mut output_val = 0;
 575                                                 for out in tx.output.iter() {
 576                                                         if out.value > 21_000_000_0000_0000 { return; }
 577                                                         output_val += out.value;
 578                                                         if output_val > 21_000_000_0000_0000 { return; }
 579                                                 }
 580                                                 loss_detector.connect_block(&[tx]);
 581                                         } else {
 582                                                 return;
 583                                         }
 584                                 }
 585                         },
 586                         13 => {
 587                                 loss_detector.disconnect_block();
 588                         },
 589                         14 => {
 590                                 let mut channels = channelmanager.list_channels();
 591                                 let channel_id = get_slice!(1)[0] as usize;
 592                                 if channel_id >= channels.len() { return; }
 593                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
 594                                 channelmanager.force_close_channel(&channels[channel_id].channel_id).unwrap();
 595                         },
 596                         // 15 is above
 597                         _ => return,
 598                 }
 599                 loss_detector.handler.process_events();
 600                 for event in loss_detector.manager.get_and_clear_pending_events() {
 601                         match event {
 602                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
 603                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
 604                                 },
 605                                 Event::PaymentReceived { payment_hash, .. } => {
 606                                         //TODO: enhance by fetching random amounts from fuzz input?
 607                                         payments_received.push(payment_hash);
 608                                 },
 609                                 Event::PendingHTLCsForwardable {..} => {
 610                                         should_forward = true;
 611                                 },
 612                                 _ => {},
 613                         }
 614                 }
 615         }
 616 }
 617
 618 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 619         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 620         do_test(data, &logger);
 621 }
 622
 623 #[no_mangle]
 624 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
 625         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
 626         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
 627 }
 628
 629 #[cfg(test)]
 630 mod tests {
 631         use lightning::util::logger::{Logger, Record};
 632         use std::collections::HashMap;
 633         use std::sync::{Arc, Mutex};
 634
 635         struct TrackingLogger {
 636                 /// (module, message) -> count
 637                 pub lines: Mutex<HashMap<(String, String), usize>>,
 638         }
 639         impl Logger for TrackingLogger {
 640                 fn log(&self, record: &Record) {
 641                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 642                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 643                 }
 644         }
 645
 646         #[test]
 647         fn test_no_existing_test_breakage() {
 648                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
 649                 // changes (such as requesting feerate info in a new place), we run a pretty full
 650                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
 651                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
 652                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
 653
 654                 // What each byte represents is broken down below, and then everything is concatenated into
 655                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
 656
 657                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
 658                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
 659                 // of the Lightning message
 660                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
 661                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
 662
 663                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
 664
 665                 // 0100000000000000000000000000000000000000000000000000000000000000 - our network key
 666                 // 00000000 - fee_proportional_millionths
 667                 // 01 - announce_channels_publicly
 668                 //
 669                 // 00 - new outbound connection with id 0
 670                 // 030000000000000000000000000000000000000000000000000000000000000002 - peer's pubkey
 671                 // 030032 - inbound read from peer id 0 of len 50
 672                 // 00 030000000000000000000000000000000000000000000000000000000000000002 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
 673                 //
 674                 // 030012 - inbound read from peer id 0 of len 18
 675                 // 000a 03000000000000000000000000000000 - message header indicating message length 10
 676                 // 03001a - inbound read from peer id 0 of len 26
 677                 // 0010 00022000 00022000 03000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 678                 //
 679                 // 030012 - inbound read from peer id 0 of len 18
 680                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
 681                 // 0300fe - inbound read from peer id 0 of len 254
 682                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 000000000000014a ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
 683                 // 030053 - inbound read from peer id 0 of len 83
 684                 // 030000000000000000000000000000000000000000000000000000000000000005 020900000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
 685                 //
 686                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
 687                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
 688                 //
 689                 // 030012 - inbound read from peer id 0 of len 18
 690                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
 691                 // 030094 - inbound read from peer id 0 of len 148
 692                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 00000000000000000000000000000000000000000000000000000000000000210100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_created and mac
 693                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
 694                 //
 695                 // 0c005e - connect a block with one transaction of len 94
 696                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
 697                 // 0c0000 - connect a block with no transactions
 698                 // 0c0000 - connect a block with no transactions
 699                 // 0c0000 - connect a block with no transactions
 700                 // 0c0000 - connect a block with no transactions
 701                 // 0c0000 - connect a block with no transactions
 702                 // 0c0000 - connect a block with no transactions
 703                 // 0c0000 - connect a block with no transactions
 704                 // 0c0000 - connect a block with no transactions
 705                 // 0c0000 - connect a block with no transactions
 706                 // 0c0000 - connect a block with no transactions
 707                 // 0c0000 - connect a block with no transactions
 708                 // 0c0000 - connect a block with no transactions
 709                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
 710                 //
 711                 // 030012 - inbound read from peer id 0 of len 18
 712                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
 713                 // 030053 - inbound read from peer id 0 of len 83
 714                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 020800000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
 715                 //
 716                 // 01 - new inbound connection with id 1
 717                 // 030132 - inbound read from peer id 1 of len 50
 718                 // 0003000000000000000000000000000000000000000000000000000000000000000703000000000000000000000000000000 - inbound noise act 1
 719                 // 030142 - inbound read from peer id 1 of len 66
 720                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
 721                 //
 722                 // 030112 - inbound read from peer id 1 of len 18
 723                 // 000a 01000000000000000000000000000000 - message header indicating message length 10
 724                 // 03011a - inbound read from peer id 1 of len 26
 725                 // 0010 00022000 00022000 01000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
 726                 //
 727                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
 728                 // 00fd - One feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
 729                 //
 730                 // 030112 - inbound read from peer id 1 of len 18
 731                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
 732                 // 0301ff - inbound read from peer id 1 of len 255
 733                 // 0021 0000000000000000000000000000000000000000000000000000000000000e05 000000000000014a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 02660000000000000000000000000000 - beginning of accept_channel
 734                 // 030121 - inbound read from peer id 1 of len 33
 735                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
 736                 //
 737                 // 0a - create the funding transaction (client should send funding_created now)
 738                 //
 739                 // 030112 - inbound read from peer id 1 of len 18
 740                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
 741                 // 030172 - inbound read from peer id 1 of len 114
 742                 // 0023 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000007c0001000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_signed message and mac
 743                 //
 744                 // 0b - broadcast funding transaction
 745                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
 746                 //
 747                 // 030112 - inbound read from peer id 1 of len 18
 748                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
 749                 // 030153 - inbound read from peer id 1 of len 83
 750                 // 0024 3a00000000000000000000000000000000000000000000000000000000000000 026700000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
 751                 //
 752                 // 030012 - inbound read from peer id 0 of len 18
 753                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 754                 // 0300ff - inbound read from peer id 0 of len 255
 755                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000a00000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 756                 // 0300ff - inbound read from peer id 0 of len 255
 757                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 758                 // 0300ff - inbound read from peer id 0 of len 255
 759                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 760                 // 0300ff - inbound read from peer id 0 of len 255
 761                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 762                 // 0300ff - inbound read from peer id 0 of len 255
 763                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 764                 // 0300c1 - inbound read from peer id 0 of len 193
 765                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 4e00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 766                 //
 767                 // 030012 - inbound read from peer id 0 of len 18
 768                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 769                 // 030074 - inbound read from peer id 0 of len 116
 770                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000300100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
 771                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
 772                 //
 773                 // 030012 - inbound read from peer id 0 of len 18
 774                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 775                 // 030073 - inbound read from peer id 0 of len 115
 776                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0900000000000000000000000000000000000000000000000000000000000000 020b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 777                 //
 778                 // 07 - process the now-pending HTLC forward
 779                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
 780                 //
 781                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
 782                 // 030112 - inbound read from peer id 1 of len 18
 783                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 784                 // 030174 - inbound read from peer id 1 of len 116
 785                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000006a0001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 786                 //
 787                 // 030112 - inbound read from peer id 1 of len 18
 788                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 789                 // 030173 - inbound read from peer id 1 of len 115
 790                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6600000000000000000000000000000000000000000000000000000000000000 026400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 791                 //
 792                 // 030112 - inbound read from peer id 1 of len 18
 793                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
 794                 // 03015a - inbound read from peer id 1 of len 90
 795                 // 0082 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
 796                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
 797                 //
 798                 // 030112 - inbound read from peer id 1 of len 18
 799                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 800                 // 030174 - inbound read from peer id 1 of len 116
 801                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000100001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 802                 //
 803                 // 030112 - inbound read from peer id 1 of len 18
 804                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 805                 // 030173 - inbound read from peer id 1 of len 115
 806                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6700000000000000000000000000000000000000000000000000000000000000 026500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 807                 //
 808                 // - before responding to the commitment_signed generated above, send a new HTLC
 809                 // 030012 - inbound read from peer id 0 of len 18
 810                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 811                 // 0300ff - inbound read from peer id 0 of len 255
 812                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000a00000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 813                 // 0300ff - inbound read from peer id 0 of len 255
 814                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 815                 // 0300ff - inbound read from peer id 0 of len 255
 816                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 817                 // 0300ff - inbound read from peer id 0 of len 255
 818                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 819                 // 0300ff - inbound read from peer id 0 of len 255
 820                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 821                 // 0300c1 - inbound read from peer id 0 of len 193
 822                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 4e00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 823                 //
 824                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
 825                 // 030012 - inbound read from peer id 0 of len 18
 826                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 827                 // 030073 - inbound read from peer id 0 of len 115
 828                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0800000000000000000000000000000000000000000000000000000000000000 020a00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 829                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 830                 //
 831                 // 030012 - inbound read from peer id 0 of len 18
 832                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 833                 // 030074 - inbound read from peer id 0 of len 116
 834                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000c30100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
 835                 //
 836                 // 030012 - inbound read from peer id 0 of len 18
 837                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 838                 // 030073 - inbound read from peer id 0 of len 115
 839                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0b00000000000000000000000000000000000000000000000000000000000000 020d00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 840                 //
 841                 // 07 - process the now-pending HTLC forward
 842                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 843                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
 844                 //
 845                 // 030112 - inbound read from peer id 1 of len 18
 846                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 847                 // 030174 - inbound read from peer id 1 of len 116
 848                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 849                 //
 850                 // 030112 - inbound read from peer id 1 of len 18
 851                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 852                 // 030173 - inbound read from peer id 1 of len 115
 853                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6400000000000000000000000000000000000000000000000000000000000000 027000000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 854                 //
 855                 // 030112 - inbound read from peer id 1 of len 18
 856                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
 857                 // 03013c - inbound read from peer id 1 of len 60
 858                 // 0083 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
 859                 //
 860                 // 030112 - inbound read from peer id 1 of len 18
 861                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
 862                 // 030174 - inbound read from peer id 1 of len 116
 863                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
 864                 //
 865                 // 030112 - inbound read from peer id 1 of len 18
 866                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
 867                 // 030173 - inbound read from peer id 1 of len 115
 868                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6500000000000000000000000000000000000000000000000000000000000000 027100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
 869                 //
 870                 // 07 - process the now-pending HTLC forward
 871                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
 872                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
 873                 //
 874                 // 030012 - inbound read from peer id 0 of len 18
 875                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 876                 // 030073 - inbound read from peer id 0 of len 115
 877                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0a00000000000000000000000000000000000000000000000000000000000000 020c00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 878                 //
 879                 // 030012 - inbound read from peer id 0 of len 18
 880                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
 881                 // 030074 - inbound read from peer id 0 of len 116
 882                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000320100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
 883                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
 884                 //
 885                 // 030012 - inbound read from peer id 0 of len 18
 886                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
 887                 // 0300ff - inbound read from peer id 0 of len 255
 888                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000927c0000000a00000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
 889                 // 0300ff - inbound read from peer id 0 of len 255
 890                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 891                 // 0300ff - inbound read from peer id 0 of len 255
 892                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 893                 // 0300ff - inbound read from peer id 0 of len 255
 894                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 895                 // 0300ff - inbound read from peer id 0 of len 255
 896                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
 897                 // 0300c1 - inbound read from peer id 0 of len 193
 898                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 4b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
 899                 //
 900                 // 030012 - inbound read from peer id 0 of len 18
 901                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
 902                 // 0300b4 - inbound read from peer id 0 of len 180
 903                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000750100000000000000000000000000000000000000000000000000000000000000 0001 00000000000000000000000000000000000000000000000000000000000000670500000000000000000000000000000000000000000000000000000000000006 03000000000000000000000000000000 - commitment_signed and mac
 904                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
 905                 //
 906                 // 030012 - inbound read from peer id 0 of len 18
 907                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
 908                 // 030073 - inbound read from peer id 0 of len 115
 909                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0d00000000000000000000000000000000000000000000000000000000000000 020f00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
 910                 //
 911                 // 07 - process the now-pending HTLC forward
 912                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
 913                 //
 914                 // 0c007d - connect a block with one transaction of len 125
 915                 // 02000000013a000000000000000000000000000000000000000000000000000000000000000000000000000000800258020000000000002200204b0000000000000000000000000000000000000000000000000000000000000014c0000000000000160014280000000000000000000000000000000000000005000020 - the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
 916                 //
 917                 // 0c005e - connect a block with one transaction of len 94
 918                 // 0200000001730000000000000000000000000000000000000000000000000000000000000000000000000000000001a701000000000000220020b20000000000000000000000000000000000000000000000000000000000000000000000 - the HTLC timeout transaction
 919                 // 0c0000 - connect a block with no transactions
 920                 // 0c0000 - connect a block with no transactions
 921                 // 0c0000 - connect a block with no transactions
 922                 // 0c0000 - connect a block with no transactions
 923                 // 0c0000 - connect a block with no transactions
 924                 //
 925                 // 07 - process the now-pending HTLC forward
 926                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
 927
 928                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
 929                 super::do_test(&::hex::decode("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 930
 931                 let log_entries = logger.lines.lock().unwrap();
 932                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendAcceptChannel event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679".to_string())), Some(&1)); // 1
 933                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingSigned event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 2
 934                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 3
 935                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 for channel 3a00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 4
 936                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendRevokeAndACK event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&4)); // 5
 937                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 with 0 adds, 0 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 6
 938                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 with 1 adds, 0 fulfills, 0 fails for channel 3a00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 7
 939                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 with 0 adds, 1 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 8
 940                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000002 with 0 adds, 0 fulfills, 1 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&2)); // 9
 941                 assert_eq!(log_entries.get(&("lightning::chain::channelmonitor".to_string(), "Input spending counterparty commitment tx (0000000000000000000000000000000000000000000000000000000000000073:0) in 0000000000000000000000000000000000000000000000000000000000000067 resolves outbound HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 with timeout".to_string())), Some(&1)); // 10
 942         }
 943 }