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[rust-lightning] / 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};
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;
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>>;
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, data: &[u8]) -> Result<EnforcingSigner, DecodeError> {
319                 EnforcingSigner::read(&mut std::io::Cursor::new(data))
320         }
321
322         fn sign_invoice(&self, _invoice_preimage: Vec<u8>) -> Result<RecoverableSignature, ()> {
323                 unreachable!()
324         }
325 }
326
327 #[inline]
328 pub fn do_test(data: &[u8], logger: &Arc<dyn Logger>) {
329         let input = Arc::new(InputData {
330                 data: data.to_vec(),
331                 read_pos: AtomicUsize::new(0),
332         });
333         let fee_est = Arc::new(FuzzEstimator {
334                 input: input.clone(),
335         });
336
337         macro_rules! get_slice {
338                 ($len: expr) => {
339                         match input.get_slice($len as usize) {
340                                 Some(slice) => slice,
341                                 None => return,
342                         }
343                 }
344         }
345
346         macro_rules! get_pubkey {
347                 () => {
348                         match PublicKey::from_slice(get_slice!(33)) {
349                                 Ok(key) => key,
350                                 Err(_) => return,
351                         }
352                 }
353         }
354
355         let our_network_key = match SecretKey::from_slice(get_slice!(32)) {
356                 Ok(key) => key,
357                 Err(_) => return,
358         };
359
360         let broadcast = Arc::new(TestBroadcaster{ txn_broadcasted: Mutex::new(Vec::new()) });
361         let monitor = Arc::new(chainmonitor::ChainMonitor::new(None, broadcast.clone(), Arc::clone(&logger), fee_est.clone(), Arc::new(TestPersister{})));
362
363         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone(), counter: AtomicU64::new(0) });
364         let mut config = UserConfig::default();
365         config.channel_options.forwarding_fee_proportional_millionths =  slice_to_be32(get_slice!(4));
366         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
367         let network = Network::Bitcoin;
368         let params = ChainParameters {
369                 network,
370                 best_block: BestBlock::from_genesis(network),
371         };
372         let channelmanager = Arc::new(ChannelManager::new(fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, params));
373         let our_id = PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret());
374         let net_graph_msg_handler = Arc::new(NetGraphMsgHandler::new(genesis_block(network).block_hash(), None, Arc::clone(&logger)));
375
376         let peers = RefCell::new([false; 256]);
377         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
378                 chan_handler: channelmanager.clone(),
379                 route_handler: net_graph_msg_handler.clone(),
380         }, 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)));
381
382         let mut should_forward = false;
383         let mut payments_received: Vec<PaymentHash> = Vec::new();
384         let mut payments_sent = 0;
385         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
386         let mut pending_funding_signatures = HashMap::new();
387
388         loop {
389                 match get_slice!(1)[0] {
390                         0 => {
391                                 let mut new_id = 0;
392                                 for i in 1..256 {
393                                         if !peers.borrow()[i-1] {
394                                                 new_id = i;
395                                                 break;
396                                         }
397                                 }
398                                 if new_id == 0 { return; }
399                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
400                                 peers.borrow_mut()[new_id - 1] = true;
401                         },
402                         1 => {
403                                 let mut new_id = 0;
404                                 for i in 1..256 {
405                                         if !peers.borrow()[i-1] {
406                                                 new_id = i;
407                                                 break;
408                                         }
409                                 }
410                                 if new_id == 0 { return; }
411                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
412                                 peers.borrow_mut()[new_id - 1] = true;
413                         },
414                         2 => {
415                                 let peer_id = get_slice!(1)[0];
416                                 if !peers.borrow()[peer_id as usize] { return; }
417                                 loss_detector.handler.socket_disconnected(&Peer{id: peer_id, peers_connected: &peers});
418                                 peers.borrow_mut()[peer_id as usize] = false;
419                         },
420                         3 => {
421                                 let peer_id = get_slice!(1)[0];
422                                 if !peers.borrow()[peer_id as usize] { return; }
423                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0])) {
424                                         Ok(res) => assert!(!res),
425                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
426                                 }
427                         },
428                         4 => {
429                                 let value = slice_to_be24(get_slice!(3)) as u64;
430                                 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)) {
431                                         Ok(route) => route,
432                                         Err(_) => return,
433                                 };
434                                 let mut payment_hash = PaymentHash([0; 32]);
435                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
436                                 let mut sha = Sha256::engine();
437                                 sha.input(&payment_hash.0[..]);
438                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
439                                 payments_sent += 1;
440                                 match channelmanager.send_payment(&route, payment_hash, &None) {
441                                         Ok(_) => {},
442                                         Err(_) => return,
443                                 }
444                         },
445                         15 => {
446                                 let value = slice_to_be24(get_slice!(3)) as u64;
447                                 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)) {
448                                         Ok(route) => route,
449                                         Err(_) => return,
450                                 };
451                                 route.paths.push(route.paths[0].clone());
452                                 let mut payment_hash = PaymentHash([0; 32]);
453                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
454                                 let mut sha = Sha256::engine();
455                                 sha.input(&payment_hash.0[..]);
456                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
457                                 payments_sent += 1;
458                                 let mut payment_secret = PaymentSecret([0; 32]);
459                                 payment_secret.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
460                                 payments_sent += 1;
461                                 match channelmanager.send_payment(&route, payment_hash, &Some(payment_secret)) {
462                                         Ok(_) => {},
463                                         Err(_) => return,
464                                 }
465                         },
466                         5 => {
467                                 let peer_id = get_slice!(1)[0];
468                                 if !peers.borrow()[peer_id as usize] { return; }
469                                 let their_key = get_pubkey!();
470                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
471                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
472                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0, None).is_err() { return; }
473                         },
474                         6 => {
475                                 let mut channels = channelmanager.list_channels();
476                                 let channel_id = get_slice!(1)[0] as usize;
477                                 if channel_id >= channels.len() { return; }
478                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
479                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
480                         },
481                         7 => {
482                                 if should_forward {
483                                         channelmanager.process_pending_htlc_forwards();
484                                         should_forward = false;
485                                 }
486                         },
487                         8 => {
488                                 for payment in payments_received.drain(..) {
489                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
490                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
491                                         // fulfill this HTLC, but if they are, we can just take the first byte and
492                                         // place that anywhere in our preimage.
493                                         if &payment.0[1..] != &[0; 31] {
494                                                 channelmanager.fail_htlc_backwards(&payment);
495                                         } else {
496                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
497                                                 payment_preimage.0[0] = payment.0[0];
498                                                 channelmanager.claim_funds(payment_preimage);
499                                         }
500                                 }
501                         },
502                         16 => {
503                                 let payment_preimage = PaymentPreimage(keys_manager.get_secure_random_bytes());
504                                 let mut sha = Sha256::engine();
505                                 sha.input(&payment_preimage.0[..]);
506                                 let payment_hash = PaymentHash(Sha256::from_engine(sha).into_inner());
507                                 // Note that this may fail - our hashes may collide and we'll end up trying to
508                                 // double-register the same payment_hash.
509                                 let _ = channelmanager.create_inbound_payment_for_hash(payment_hash, None, 1, 0);
510                         },
511                         9 => {
512                                 for payment in payments_received.drain(..) {
513                                         channelmanager.fail_htlc_backwards(&payment);
514                                 }
515                         },
516                         10 => {
517                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
518                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
519                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
520                                                 }] };
521                                         let funding_output = 'search_loop: loop {
522                                                 let funding_txid = tx.txid();
523                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
524                                                         let outpoint = OutPoint { txid: funding_txid, index: 0 };
525                                                         for chan in channelmanager.list_channels() {
526                                                                 if chan.channel_id == outpoint.to_channel_id() {
527                                                                         tx.version += 1;
528                                                                         continue 'search_loop;
529                                                                 }
530                                                         }
531                                                         break outpoint;
532                                                 }
533                                                 tx.version += 1;
534                                                 if tx.version > 0xff {
535                                                         continue 'outer_loop;
536                                                 }
537                                         };
538                                         if let Err(e) = channelmanager.funding_transaction_generated(&funding_generation.0, tx.clone()) {
539                                                 // It's possible the channel has been closed in the mean time, but any other
540                                                 // failure may be a bug.
541                                                 if let APIError::ChannelUnavailable { err } = e {
542                                                         assert_eq!(err, "No such channel");
543                                                 } else { panic!(); }
544                                         }
545                                         pending_funding_signatures.insert(funding_output, tx);
546                                 }
547                         },
548                         11 => {
549                                 let mut txn = broadcast.txn_broadcasted.lock().unwrap().split_off(0);
550                                 if !txn.is_empty() {
551                                         loss_detector.connect_block(&txn[..]);
552                                         for _ in 2..100 {
553                                                 loss_detector.connect_block(&[]);
554                                         }
555                                 }
556                                 for tx in txn.drain(..) {
557                                         loss_detector.funding_txn.push(tx);
558                                 }
559                         },
560                         12 => {
561                                 let txlen = slice_to_be16(get_slice!(2));
562                                 if txlen == 0 {
563                                         loss_detector.connect_block(&[]);
564                                 } else {
565                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
566                                         if let Ok(tx) = txres {
567                                                 let mut output_val = 0;
568                                                 for out in tx.output.iter() {
569                                                         if out.value > 21_000_000_0000_0000 { return; }
570                                                         output_val += out.value;
571                                                         if output_val > 21_000_000_0000_0000 { return; }
572                                                 }
573                                                 loss_detector.connect_block(&[tx]);
574                                         } else {
575                                                 return;
576                                         }
577                                 }
578                         },
579                         13 => {
580                                 loss_detector.disconnect_block();
581                         },
582                         14 => {
583                                 let mut channels = channelmanager.list_channels();
584                                 let channel_id = get_slice!(1)[0] as usize;
585                                 if channel_id >= channels.len() { return; }
586                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
587                                 channelmanager.force_close_channel(&channels[channel_id].channel_id).unwrap();
588                         },
589                         // 15 is above
590                         _ => return,
591                 }
592                 loss_detector.handler.process_events();
593                 for event in loss_detector.manager.get_and_clear_pending_events() {
594                         match event {
595                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
596                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
597                                 },
598                                 Event::PaymentReceived { payment_hash, .. } => {
599                                         //TODO: enhance by fetching random amounts from fuzz input?
600                                         payments_received.push(payment_hash);
601                                 },
602                                 Event::PendingHTLCsForwardable {..} => {
603                                         should_forward = true;
604                                 },
605                                 _ => {},
606                         }
607                 }
608         }
609 }
610
611 pub fn full_stack_test<Out: test_logger::Output>(data: &[u8], out: Out) {
612         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
613         do_test(data, &logger);
614 }
615
616 #[no_mangle]
617 pub extern "C" fn full_stack_run(data: *const u8, datalen: usize) {
618         let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {}));
619         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
620 }
621
622 #[cfg(test)]
623 mod tests {
624         use lightning::util::logger::{Logger, Record};
625         use std::collections::HashMap;
626         use std::sync::{Arc, Mutex};
627
628         struct TrackingLogger {
629                 /// (module, message) -> count
630                 pub lines: Mutex<HashMap<(String, String), usize>>,
631         }
632         impl Logger for TrackingLogger {
633                 fn log(&self, record: &Record) {
634                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
635                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
636                 }
637         }
638
639         #[test]
640         fn test_no_existing_test_breakage() {
641                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
642                 // changes (such as requesting feerate info in a new place), we run a pretty full
643                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
644                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
645                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
646
647                 // What each byte represents is broken down below, and then everything is concatenated into
648                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
649
650                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length +
651                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
652                 // of the Lightning message
653                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
654                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
655
656                 // Writing new code generating transactions and see a new failure ? Don't forget to add input for the FuzzEstimator !
657
658                 // 0100000000000000000000000000000000000000000000000000000000000000 - our network key
659                 // 00000000 - fee_proportional_millionths
660                 // 01 - announce_channels_publicly
661                 //
662                 // 00 - new outbound connection with id 0
663                 // 030000000000000000000000000000000000000000000000000000000000000002 - peer's pubkey
664                 // 030032 - inbound read from peer id 0 of len 50
665                 // 00 030000000000000000000000000000000000000000000000000000000000000002 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
666                 //
667                 // 030012 - inbound read from peer id 0 of len 18
668                 // 000a 03000000000000000000000000000000 - message header indicating message length 10
669                 // 03001a - inbound read from peer id 0 of len 26
670                 // 0010 00022000 00022000 03000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
671                 //
672                 // 030012 - inbound read from peer id 0 of len 18
673                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
674                 // 0300fe - inbound read from peer id 0 of len 254
675                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 000000000000014a ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
676                 // 030053 - inbound read from peer id 0 of len 83
677                 // 030000000000000000000000000000000000000000000000000000000000000005 020900000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
678                 //
679                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
680                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
681                 //
682                 // 030012 - inbound read from peer id 0 of len 18
683                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
684                 // 030094 - inbound read from peer id 0 of len 148
685                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 00000000000000000000000000000000000000000000000000000000000000210100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_created and mac
686                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
687                 //
688                 // 0c005e - connect a block with one transaction of len 94
689                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
690                 // 0c0000 - connect a block with no transactions
691                 // 0c0000 - connect a block with no transactions
692                 // 0c0000 - connect a block with no transactions
693                 // 0c0000 - connect a block with no transactions
694                 // 0c0000 - connect a block with no transactions
695                 // 0c0000 - connect a block with no transactions
696                 // 0c0000 - connect a block with no transactions
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                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
703                 //
704                 // 030012 - inbound read from peer id 0 of len 18
705                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
706                 // 030053 - inbound read from peer id 0 of len 83
707                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 020800000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
708                 //
709                 // 01 - new inbound connection with id 1
710                 // 030132 - inbound read from peer id 1 of len 50
711                 // 0003000000000000000000000000000000000000000000000000000000000000000703000000000000000000000000000000 - inbound noise act 1
712                 // 030142 - inbound read from peer id 1 of len 66
713                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
714                 //
715                 // 030112 - inbound read from peer id 1 of len 18
716                 // 000a 01000000000000000000000000000000 - message header indicating message length 10
717                 // 03011a - inbound read from peer id 1 of len 26
718                 // 0010 00022000 00022000 01000000000000000000000000000000 - init message (type 16) with static_remotekey (0x2000) and mac
719                 //
720                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
721                 // 00fd - One feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
722                 //
723                 // 030112 - inbound read from peer id 1 of len 18
724                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
725                 // 0301ff - inbound read from peer id 1 of len 255
726                 // 0021 0000000000000000000000000000000000000000000000000000000000000e05 000000000000014a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 02660000000000000000000000000000 - beginning of accept_channel
727                 // 030121 - inbound read from peer id 1 of len 33
728                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
729                 //
730                 // 0a - create the funding transaction (client should send funding_created now)
731                 //
732                 // 030112 - inbound read from peer id 1 of len 18
733                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
734                 // 030172 - inbound read from peer id 1 of len 114
735                 // 0023 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000007c0001000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_signed message and mac
736                 //
737                 // 0b - broadcast funding transaction
738                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
739                 //
740                 // 030112 - inbound read from peer id 1 of len 18
741                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
742                 // 030153 - inbound read from peer id 1 of len 83
743                 // 0024 3a00000000000000000000000000000000000000000000000000000000000000 026700000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
744                 //
745                 // 030012 - inbound read from peer id 0 of len 18
746                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
747                 // 0300ff - inbound read from peer id 0 of len 255
748                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000a00000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
749                 // 0300ff - inbound read from peer id 0 of len 255
750                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
751                 // 0300ff - inbound read from peer id 0 of len 255
752                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
753                 // 0300ff - inbound read from peer id 0 of len 255
754                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
755                 // 0300ff - inbound read from peer id 0 of len 255
756                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
757                 // 0300c1 - inbound read from peer id 0 of len 193
758                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 4e00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
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 00000000000000000000000000000000000000000000000000000000000000300100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
764                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
765                 //
766                 // 030012 - inbound read from peer id 0 of len 18
767                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
768                 // 030073 - inbound read from peer id 0 of len 115
769                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0900000000000000000000000000000000000000000000000000000000000000 020b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
770                 //
771                 // 07 - process the now-pending HTLC forward
772                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
773                 //
774                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
775                 // 030112 - inbound read from peer id 1 of len 18
776                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
777                 // 030174 - inbound read from peer id 1 of len 116
778                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 000000000000000000000000000000000000000000000000000000000000006a0001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
779                 //
780                 // 030112 - inbound read from peer id 1 of len 18
781                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
782                 // 030173 - inbound read from peer id 1 of len 115
783                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6600000000000000000000000000000000000000000000000000000000000000 026400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
784                 //
785                 // 030112 - inbound read from peer id 1 of len 18
786                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
787                 // 03015a - inbound read from peer id 1 of len 90
788                 // 0082 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
789                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
790                 //
791                 // 030112 - inbound read from peer id 1 of len 18
792                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
793                 // 030174 - inbound read from peer id 1 of len 116
794                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000100001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
795                 //
796                 // 030112 - inbound read from peer id 1 of len 18
797                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
798                 // 030173 - inbound read from peer id 1 of len 115
799                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6700000000000000000000000000000000000000000000000000000000000000 026500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
800                 //
801                 // - before responding to the commitment_signed generated above, send a new HTLC
802                 // 030012 - inbound read from peer id 0 of len 18
803                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
804                 // 0300ff - inbound read from peer id 0 of len 255
805                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000a00000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
806                 // 0300ff - inbound read from peer id 0 of len 255
807                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
808                 // 0300ff - inbound read from peer id 0 of len 255
809                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
810                 // 0300ff - inbound read from peer id 0 of len 255
811                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
812                 // 0300ff - inbound read from peer id 0 of len 255
813                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
814                 // 0300c1 - inbound read from peer id 0 of len 193
815                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 4e00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
816                 //
817                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
818                 // 030012 - inbound read from peer id 0 of len 18
819                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
820                 // 030073 - inbound read from peer id 0 of len 115
821                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0800000000000000000000000000000000000000000000000000000000000000 020a00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
822                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
823                 //
824                 // 030012 - inbound read from peer id 0 of len 18
825                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
826                 // 030074 - inbound read from peer id 0 of len 116
827                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000c30100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
828                 //
829                 // 030012 - inbound read from peer id 0 of len 18
830                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
831                 // 030073 - inbound read from peer id 0 of len 115
832                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0b00000000000000000000000000000000000000000000000000000000000000 020d00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
833                 //
834                 // 07 - process the now-pending HTLC forward
835                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
836                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
837                 //
838                 // 030112 - inbound read from peer id 1 of len 18
839                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
840                 // 030174 - inbound read from peer id 1 of len 116
841                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
842                 //
843                 // 030112 - inbound read from peer id 1 of len 18
844                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
845                 // 030173 - inbound read from peer id 1 of len 115
846                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6400000000000000000000000000000000000000000000000000000000000000 027000000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
847                 //
848                 // 030112 - inbound read from peer id 1 of len 18
849                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
850                 // 03013c - inbound read from peer id 1 of len 60
851                 // 0083 3a00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
852                 //
853                 // 030112 - inbound read from peer id 1 of len 18
854                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
855                 // 030174 - inbound read from peer id 1 of len 116
856                 // 0084 3a00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000390001000000000000000000000000000000000000000000000000000000000000 0000 01000000000000000000000000000000 - commitment_signed and mac
857                 //
858                 // 030112 - inbound read from peer id 1 of len 18
859                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
860                 // 030173 - inbound read from peer id 1 of len 115
861                 // 0085 3a00000000000000000000000000000000000000000000000000000000000000 6500000000000000000000000000000000000000000000000000000000000000 027100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
862                 //
863                 // 07 - process the now-pending HTLC forward
864                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
865                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
866                 //
867                 // 030012 - inbound read from peer id 0 of len 18
868                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
869                 // 030073 - inbound read from peer id 0 of len 115
870                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0a00000000000000000000000000000000000000000000000000000000000000 020c00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
871                 //
872                 // 030012 - inbound read from peer id 0 of len 18
873                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
874                 // 030074 - inbound read from peer id 0 of len 116
875                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000320100000000000000000000000000000000000000000000000000000000000000 0000 03000000000000000000000000000000 - commitment_signed and mac
876                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
877                 //
878                 // 030012 - inbound read from peer id 0 of len 18
879                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
880                 // 0300ff - inbound read from peer id 0 of len 255
881                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 000003f0 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000927c0000000a00000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
882                 // 0300ff - inbound read from peer id 0 of len 255
883                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
884                 // 0300ff - inbound read from peer id 0 of len 255
885                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
886                 // 0300ff - inbound read from peer id 0 of len 255
887                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
888                 // 0300ff - inbound read from peer id 0 of len 255
889                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
890                 // 0300c1 - inbound read from peer id 0 of len 193
891                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff 4b00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
892                 //
893                 // 030012 - inbound read from peer id 0 of len 18
894                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
895                 // 0300b4 - inbound read from peer id 0 of len 180
896                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 00000000000000000000000000000000000000000000000000000000000000750100000000000000000000000000000000000000000000000000000000000000 0001 00000000000000000000000000000000000000000000000000000000000000670500000000000000000000000000000000000000000000000000000000000006 03000000000000000000000000000000 - commitment_signed and mac
897                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
898                 //
899                 // 030012 - inbound read from peer id 0 of len 18
900                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
901                 // 030073 - inbound read from peer id 0 of len 115
902                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0d00000000000000000000000000000000000000000000000000000000000000 020f00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
903                 //
904                 // 07 - process the now-pending HTLC forward
905                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
906                 //
907                 // 0c007d - connect a block with one transaction of len 125
908                 // 02000000013a000000000000000000000000000000000000000000000000000000000000000000000000000000800258020000000000002200204b0000000000000000000000000000000000000000000000000000000000000014c0000000000000160014280000000000000000000000000000000000000005000020 - the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
909                 //
910                 // 0c005e - connect a block with one transaction of len 94
911                 // 0200000001730000000000000000000000000000000000000000000000000000000000000000000000000000000001a701000000000000220020b20000000000000000000000000000000000000000000000000000000000000000000000 - the HTLC timeout transaction
912                 // 0c0000 - connect a block with no transactions
913                 // 0c0000 - connect a block with no transactions
914                 // 0c0000 - connect a block with no transactions
915                 // 0c0000 - connect a block with no transactions
916                 // 0c0000 - connect a block with no transactions
917                 //
918                 // 07 - process the now-pending HTLC forward
919                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
920
921                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
922                 super::do_test(&::hex::decode("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923
924                 let log_entries = logger.lines.lock().unwrap();
925                 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
926                 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
927                 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
928                 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
929                 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
930                 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
931                 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
932                 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
933                 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
934                 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
935         }
936 }