6145d003b199f5007c1b563266b30dd0da2f9c1d
[rust-lightning] / fuzz / fuzz_targets / full_stack_target.rs
1 //! Test that no series of bytes received over the wire/connections created/payments sent can
2 //! result in a crash. We do this by standing up a node and then reading bytes from input to denote
3 //! actions such as creating new inbound/outbound connections, bytes to be read from a connection,
4 //! or payments to send/ways to handle events generated.
5 //! This test has been very useful, though due to its complexity good starting inputs are critical.
6
7 //Uncomment this for libfuzzer builds:
8 //#![no_main]
9
10 extern crate bitcoin;
11 extern crate bitcoin_hashes;
12 extern crate lightning;
13 extern crate secp256k1;
14
15 use bitcoin::blockdata::block::BlockHeader;
16 use bitcoin::blockdata::transaction::{Transaction, TxOut};
17 use bitcoin::blockdata::script::{Builder, Script};
18 use bitcoin::blockdata::opcodes;
19 use bitcoin::consensus::encode::deserialize;
20 use bitcoin::network::constants::Network;
21 use bitcoin::util::hash::BitcoinHash;
22
23 use bitcoin_hashes::Hash as TraitImport;
24 use bitcoin_hashes::HashEngine as TraitImportEngine;
25 use bitcoin_hashes::sha256::Hash as Sha256;
26 use bitcoin_hashes::hash160::Hash as Hash160;
27 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
28
29 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
30 use lightning::chain::transaction::OutPoint;
31 use lightning::chain::keysinterface::{ChannelKeys, KeysInterface};
32 use lightning::ln::channelmonitor;
33 use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage};
34 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
35 use lightning::ln::router::Router;
36 use lightning::util::events::{EventsProvider,Event};
37 use lightning::util::logger::Logger;
38 use lightning::util::config::UserConfig;
39
40 mod utils;
41
42 use utils::test_logger;
43
44 use secp256k1::key::{PublicKey,SecretKey};
45 use secp256k1::Secp256k1;
46
47 use std::cell::RefCell;
48 use std::collections::{HashMap, hash_map};
49 use std::cmp;
50 use std::hash::Hash;
51 use std::sync::Arc;
52 use std::sync::atomic::{AtomicU64,AtomicUsize,Ordering};
53
54 #[inline]
55 pub fn slice_to_be16(v: &[u8]) -> u16 {
56         ((v[0] as u16) << 8*1) |
57         ((v[1] as u16) << 8*0)
58 }
59
60 #[inline]
61 pub fn slice_to_be24(v: &[u8]) -> u32 {
62         ((v[0] as u32) << 8*2) |
63         ((v[1] as u32) << 8*1) |
64         ((v[2] as u32) << 8*0)
65 }
66
67 #[inline]
68 pub fn slice_to_be32(v: &[u8]) -> u32 {
69         ((v[0] as u32) << 8*3) |
70         ((v[1] as u32) << 8*2) |
71         ((v[2] as u32) << 8*1) |
72         ((v[3] as u32) << 8*0)
73 }
74
75 #[inline]
76 pub fn be64_to_array(u: u64) -> [u8; 8] {
77         let mut v = [0; 8];
78         v[0] = ((u >> 8*7) & 0xff) as u8;
79         v[1] = ((u >> 8*6) & 0xff) as u8;
80         v[2] = ((u >> 8*5) & 0xff) as u8;
81         v[3] = ((u >> 8*4) & 0xff) as u8;
82         v[4] = ((u >> 8*3) & 0xff) as u8;
83         v[5] = ((u >> 8*2) & 0xff) as u8;
84         v[6] = ((u >> 8*1) & 0xff) as u8;
85         v[7] = ((u >> 8*0) & 0xff) as u8;
86         v
87 }
88
89 struct InputData {
90         data: Vec<u8>,
91         read_pos: AtomicUsize,
92 }
93 impl InputData {
94         fn get_slice(&self, len: usize) -> Option<&[u8]> {
95                 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
96                 if self.data.len() < old_pos + len {
97                         return None;
98                 }
99                 Some(&self.data[old_pos..old_pos + len])
100         }
101 }
102
103 struct FuzzEstimator {
104         input: Arc<InputData>,
105 }
106 impl FeeEstimator for FuzzEstimator {
107         fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
108                 //TODO: We should actually be testing at least much more than 64k...
109                 match self.input.get_slice(2) {
110                         Some(slice) => cmp::max(slice_to_be16(slice) as u64, 253),
111                         None => 0
112                 }
113         }
114 }
115
116 struct TestBroadcaster {}
117 impl BroadcasterInterface for TestBroadcaster {
118         fn broadcast_transaction(&self, _tx: &Transaction) {}
119 }
120
121 #[derive(Clone)]
122 struct Peer<'a> {
123         id: u8,
124         peers_connected: &'a RefCell<[bool; 256]>,
125 }
126 impl<'a> SocketDescriptor for Peer<'a> {
127         fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
128                 data.len()
129         }
130         fn disconnect_socket(&mut self) {
131                 assert!(self.peers_connected.borrow()[self.id as usize]);
132                 self.peers_connected.borrow_mut()[self.id as usize] = false;
133         }
134 }
135 impl<'a> PartialEq for Peer<'a> {
136         fn eq(&self, other: &Self) -> bool {
137                 self.id == other.id
138         }
139 }
140 impl<'a> Eq for Peer<'a> {}
141 impl<'a> Hash for Peer<'a> {
142         fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
143                 self.id.hash(h)
144         }
145 }
146
147 struct MoneyLossDetector<'a> {
148         manager: Arc<ChannelManager>,
149         monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>,
150         handler: PeerManager<Peer<'a>>,
151
152         peers: &'a RefCell<[bool; 256]>,
153         funding_txn: Vec<Transaction>,
154         txids_confirmed: HashMap<Sha256dHash, usize>,
155         header_hashes: Vec<Sha256dHash>,
156         height: usize,
157         max_height: usize,
158         blocks_connected: u32,
159 }
160 impl<'a> MoneyLossDetector<'a> {
161         pub fn new(peers: &'a RefCell<[bool; 256]>, manager: Arc<ChannelManager>, monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>, handler: PeerManager<Peer<'a>>) -> Self {
162                 MoneyLossDetector {
163                         manager,
164                         monitor,
165                         handler,
166
167                         peers,
168                         funding_txn: Vec::new(),
169                         txids_confirmed: HashMap::new(),
170                         header_hashes: vec![Default::default()],
171                         height: 0,
172                         max_height: 0,
173                         blocks_connected: 0,
174                 }
175         }
176
177         fn connect_block(&mut self, all_txn: &[Transaction]) {
178                 let mut txn = Vec::with_capacity(all_txn.len());
179                 let mut txn_idxs = Vec::with_capacity(all_txn.len());
180                 for (idx, tx) in all_txn.iter().enumerate() {
181                         let txid = tx.txid();
182                         match self.txids_confirmed.entry(txid) {
183                                 hash_map::Entry::Vacant(e) => {
184                                         e.insert(self.height);
185                                         txn.push(tx);
186                                         txn_idxs.push(idx as u32 + 1);
187                                 },
188                                 _ => {},
189                         }
190                 }
191
192                 let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: self.blocks_connected, bits: 42, nonce: 42 };
193                 self.height += 1;
194                 self.blocks_connected += 1;
195                 self.manager.block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
196                 (*self.monitor).block_connected(&header, self.height as u32, &txn[..], &txn_idxs[..]);
197                 if self.header_hashes.len() > self.height {
198                         self.header_hashes[self.height] = header.bitcoin_hash();
199                 } else {
200                         assert_eq!(self.header_hashes.len(), self.height);
201                         self.header_hashes.push(header.bitcoin_hash());
202                 }
203                 self.max_height = cmp::max(self.height, self.max_height);
204         }
205
206         fn disconnect_block(&mut self) {
207                 if self.height > 0 && (self.max_height < 6 || self.height >= self.max_height - 6) {
208                         self.height -= 1;
209                         let header = BlockHeader { version: 0x20000000, prev_blockhash: self.header_hashes[self.height], merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
210                         self.manager.block_disconnected(&header, self.height as u32);
211                         self.monitor.block_disconnected(&header, self.height as u32);
212                         let removal_height = self.height;
213                         self.txids_confirmed.retain(|_, height| {
214                                 removal_height != *height
215                         });
216                 }
217         }
218 }
219
220 impl<'a> Drop for MoneyLossDetector<'a> {
221         fn drop(&mut self) {
222                 if !::std::thread::panicking() {
223                         // Disconnect all peers
224                         for (idx, peer) in self.peers.borrow().iter().enumerate() {
225                                 if *peer {
226                                         self.handler.disconnect_event(&Peer{id: idx as u8, peers_connected: &self.peers});
227                                 }
228                         }
229
230                         // Force all channels onto the chain (and time out claim txn)
231                         self.manager.force_close_all_channels();
232                 }
233         }
234 }
235
236 struct KeyProvider {
237         node_secret: SecretKey,
238         counter: AtomicU64,
239 }
240 impl KeysInterface for KeyProvider {
241         fn get_node_secret(&self) -> SecretKey {
242                 self.node_secret.clone()
243         }
244
245         fn get_destination_script(&self) -> Script {
246                 let secp_ctx = Secp256k1::signing_only();
247                 let channel_monitor_claim_key = SecretKey::from_slice(&hex::decode("0fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap()[..]).unwrap();
248                 let our_channel_monitor_claim_key_hash = <Hash160 as bitcoin_hashes::Hash>::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
249                 Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
250         }
251
252         fn get_shutdown_pubkey(&self) -> PublicKey {
253                 let secp_ctx = Secp256k1::signing_only();
254                 PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap())
255         }
256
257         fn get_channel_keys(&self, inbound: bool) -> ChannelKeys {
258                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
259                 if inbound {
260                         ChannelKeys {
261                                 funding_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, 1, ctr]).unwrap(),
262                                 revocation_base_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, 2, ctr]).unwrap(),
263                                 payment_base_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, 3, ctr]).unwrap(),
264                                 delayed_payment_base_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, 4, ctr]).unwrap(),
265                                 htlc_base_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, 5, ctr]).unwrap(),
266                                 commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, ctr],
267                         }
268                 } else {
269                         ChannelKeys {
270                                 funding_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, 7, ctr]).unwrap(),
271                                 revocation_base_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, 8, ctr]).unwrap(),
272                                 payment_base_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, 9, ctr]).unwrap(),
273                                 delayed_payment_base_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, 10, ctr]).unwrap(),
274                                 htlc_base_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, 11, ctr]).unwrap(),
275                                 commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 12, ctr],
276                         }
277                 }
278         }
279
280         fn get_session_key(&self) -> SecretKey {
281                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed) as u8;
282                 SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 13, ctr]).unwrap()
283         }
284
285         fn get_channel_id(&self) -> [u8; 32] {
286                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
287                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
288                 (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]
289         }
290 }
291
292 #[inline]
293 pub fn do_test(data: &[u8], logger: &Arc<Logger>) {
294         let input = Arc::new(InputData {
295                 data: data.to_vec(),
296                 read_pos: AtomicUsize::new(0),
297         });
298         let fee_est = Arc::new(FuzzEstimator {
299                 input: input.clone(),
300         });
301
302         macro_rules! get_slice {
303                 ($len: expr) => {
304                         match input.get_slice($len as usize) {
305                                 Some(slice) => slice,
306                                 None => return,
307                         }
308                 }
309         }
310
311         macro_rules! get_pubkey {
312                 () => {
313                         match PublicKey::from_slice(get_slice!(33)) {
314                                 Ok(key) => key,
315                                 Err(_) => return,
316                         }
317                 }
318         }
319
320         let our_network_key = match SecretKey::from_slice(get_slice!(32)) {
321                 Ok(key) => key,
322                 Err(_) => return,
323         };
324
325         let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
326         let broadcast = Arc::new(TestBroadcaster{});
327         let monitor = channelmonitor::SimpleManyChannelMonitor::new(watch.clone(), broadcast.clone(), Arc::clone(&logger), fee_est.clone());
328
329         let keys_manager = Arc::new(KeyProvider { node_secret: our_network_key.clone(), counter: AtomicU64::new(0) });
330         let mut config = UserConfig::new();
331         config.channel_options.fee_proportional_millionths =  slice_to_be32(get_slice!(4));
332         config.channel_options.announced_channel = get_slice!(1)[0] != 0;
333         config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
334         let channelmanager = ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), watch.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config).unwrap();
335         let router = Arc::new(Router::new(PublicKey::from_secret_key(&Secp256k1::signing_only(), &keys_manager.get_node_secret()), watch.clone(), Arc::clone(&logger)));
336
337         let peers = RefCell::new([false; 256]);
338         let mut loss_detector = MoneyLossDetector::new(&peers, channelmanager.clone(), monitor.clone(), PeerManager::new(MessageHandler {
339                 chan_handler: channelmanager.clone(),
340                 route_handler: router.clone(),
341         }, 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)));
342
343         let mut should_forward = false;
344         let mut payments_received: Vec<PaymentHash> = Vec::new();
345         let mut payments_sent = 0;
346         let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
347         let mut pending_funding_signatures = HashMap::new();
348         let mut pending_funding_relay = Vec::new();
349
350         loop {
351                 match get_slice!(1)[0] {
352                         0 => {
353                                 let mut new_id = 0;
354                                 for i in 1..256 {
355                                         if !peers.borrow()[i-1] {
356                                                 new_id = i;
357                                                 break;
358                                         }
359                                 }
360                                 if new_id == 0 { return; }
361                                 loss_detector.handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
362                                 peers.borrow_mut()[new_id - 1] = true;
363                         },
364                         1 => {
365                                 let mut new_id = 0;
366                                 for i in 1..256 {
367                                         if !peers.borrow()[i-1] {
368                                                 new_id = i;
369                                                 break;
370                                         }
371                                 }
372                                 if new_id == 0 { return; }
373                                 loss_detector.handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
374                                 peers.borrow_mut()[new_id - 1] = true;
375                         },
376                         2 => {
377                                 let peer_id = get_slice!(1)[0];
378                                 if !peers.borrow()[peer_id as usize] { return; }
379                                 loss_detector.handler.disconnect_event(&Peer{id: peer_id, peers_connected: &peers});
380                                 peers.borrow_mut()[peer_id as usize] = false;
381                         },
382                         3 => {
383                                 let peer_id = get_slice!(1)[0];
384                                 if !peers.borrow()[peer_id as usize] { return; }
385                                 match loss_detector.handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0]).to_vec()) {
386                                         Ok(res) => assert!(!res),
387                                         Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
388                                 }
389                         },
390                         4 => {
391                                 let value = slice_to_be24(get_slice!(3)) as u64;
392                                 let route = match router.get_route(&get_pubkey!(), None, &Vec::new(), value, 42) {
393                                         Ok(route) => route,
394                                         Err(_) => return,
395                                 };
396                                 let mut payment_hash = PaymentHash([0; 32]);
397                                 payment_hash.0[0..8].copy_from_slice(&be64_to_array(payments_sent));
398                                 let mut sha = Sha256::engine();
399                                 sha.input(&payment_hash.0[..]);
400                                 payment_hash.0 = Sha256::from_engine(sha).into_inner();
401                                 payments_sent += 1;
402                                 match channelmanager.send_payment(route, payment_hash) {
403                                         Ok(_) => {},
404                                         Err(_) => return,
405                                 }
406                         },
407                         5 => {
408                                 let peer_id = get_slice!(1)[0];
409                                 if !peers.borrow()[peer_id as usize] { return; }
410                                 let their_key = get_pubkey!();
411                                 let chan_value = slice_to_be24(get_slice!(3)) as u64;
412                                 let push_msat_value = slice_to_be24(get_slice!(3)) as u64;
413                                 if channelmanager.create_channel(their_key, chan_value, push_msat_value, 0).is_err() { return; }
414                         },
415                         6 => {
416                                 let mut channels = channelmanager.list_channels();
417                                 let channel_id = get_slice!(1)[0] as usize;
418                                 if channel_id >= channels.len() { return; }
419                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
420                                 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
421                         },
422                         7 => {
423                                 if should_forward {
424                                         channelmanager.process_pending_htlc_forwards();
425                                         should_forward = false;
426                                 }
427                         },
428                         8 => {
429                                 for payment in payments_received.drain(..) {
430                                         // SHA256 is defined as XOR of all input bytes placed in the first byte, and 0s
431                                         // for the remaining bytes. Thus, if not all remaining bytes are 0s we cannot
432                                         // fulfill this HTLC, but if they are, we can just take the first byte and
433                                         // place that anywhere in our preimage.
434                                         if &payment.0[1..] != &[0; 31] {
435                                                 channelmanager.fail_htlc_backwards(&payment);
436                                         } else {
437                                                 let mut payment_preimage = PaymentPreimage([0; 32]);
438                                                 payment_preimage.0[0] = payment.0[0];
439                                                 channelmanager.claim_funds(payment_preimage);
440                                         }
441                                 }
442                         },
443                         9 => {
444                                 for payment in payments_received.drain(..) {
445                                         channelmanager.fail_htlc_backwards(&payment);
446                                 }
447                         },
448                         10 => {
449                                 'outer_loop: for funding_generation in pending_funding_generation.drain(..) {
450                                         let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
451                                                         value: funding_generation.1, script_pubkey: funding_generation.2,
452                                                 }] };
453                                         let funding_output = 'search_loop: loop {
454                                                 let funding_txid = tx.txid();
455                                                 if let None = loss_detector.txids_confirmed.get(&funding_txid) {
456                                                         let outpoint = OutPoint::new(funding_txid, 0);
457                                                         for chan in channelmanager.list_channels() {
458                                                                 if chan.channel_id == outpoint.to_channel_id() {
459                                                                         tx.version += 1;
460                                                                         continue 'search_loop;
461                                                                 }
462                                                         }
463                                                         break outpoint;
464                                                 }
465                                                 tx.version += 1;
466                                                 if tx.version > 0xff {
467                                                         continue 'outer_loop;
468                                                 }
469                                         };
470                                         channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
471                                         pending_funding_signatures.insert(funding_output, tx);
472                                 }
473                         },
474                         11 => {
475                                 if !pending_funding_relay.is_empty() {
476                                         loss_detector.connect_block(&pending_funding_relay[..]);
477                                         for _ in 2..100 {
478                                                 loss_detector.connect_block(&[]);
479                                         }
480                                 }
481                                 for tx in pending_funding_relay.drain(..) {
482                                         loss_detector.funding_txn.push(tx);
483                                 }
484                         },
485                         12 => {
486                                 let txlen = slice_to_be16(get_slice!(2));
487                                 if txlen == 0 {
488                                         loss_detector.connect_block(&[]);
489                                 } else {
490                                         let txres: Result<Transaction, _> = deserialize(get_slice!(txlen));
491                                         if let Ok(tx) = txres {
492                                                 loss_detector.connect_block(&[tx]);
493                                         } else {
494                                                 return;
495                                         }
496                                 }
497                         },
498                         13 => {
499                                 loss_detector.disconnect_block();
500                         },
501                         14 => {
502                                 let mut channels = channelmanager.list_channels();
503                                 let channel_id = get_slice!(1)[0] as usize;
504                                 if channel_id >= channels.len() { return; }
505                                 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
506                                 channelmanager.force_close_channel(&channels[channel_id].channel_id);
507                         },
508                         _ => return,
509                 }
510                 loss_detector.handler.process_events();
511                 for event in loss_detector.manager.get_and_clear_pending_events() {
512                         match event {
513                                 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
514                                         pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
515                                 },
516                                 Event::FundingBroadcastSafe { funding_txo, .. } => {
517                                         pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
518                                 },
519                                 Event::PaymentReceived { payment_hash, .. } => {
520                                         payments_received.push(payment_hash);
521                                 },
522                                 Event::PaymentSent {..} => {},
523                                 Event::PaymentFailed {..} => {},
524                                 Event::PendingHTLCsForwardable {..} => {
525                                         should_forward = true;
526                                 },
527                                 Event::SpendableOutputs {..} => {},
528                         }
529                 }
530         }
531 }
532
533 #[cfg(feature = "afl")]
534 #[macro_use] extern crate afl;
535 #[cfg(feature = "afl")]
536 fn main() {
537         fuzz!(|data| {
538                 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger::new("".to_owned()));
539                 do_test(data, &logger);
540         });
541 }
542
543 #[cfg(feature = "honggfuzz")]
544 #[macro_use] extern crate honggfuzz;
545 #[cfg(feature = "honggfuzz")]
546 fn main() {
547         loop {
548                 fuzz!(|data| {
549                         let logger: Arc<Logger> = Arc::new(test_logger::TestLogger::new("".to_owned()));
550                         do_test(data, &logger);
551                 });
552         }
553 }
554
555 #[cfg(feature = "libfuzzer_fuzz")]
556 #[macro_use] extern crate libfuzzer_sys;
557 #[cfg(feature = "libfuzzer_fuzz")]
558 fuzz_target!(|data: &[u8]| {
559         let logger: Arc<Logger> = Arc::new(test_logger::TestLogger::new("".to_owned()));
560         do_test(data, &logger);
561 });
562
563 extern crate hex;
564 #[cfg(test)]
565 mod tests {
566         use utils::test_logger;
567         use lightning::util::logger::{Logger, Record};
568         use std::collections::HashMap;
569         use std::sync::{Arc, Mutex};
570
571         #[test]
572         fn duplicate_crash() {
573                 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger::new("".to_owned()));
574                 super::do_test(&::hex::decode("00").unwrap(), &logger);
575         }
576
577         struct TrackingLogger {
578                 /// (module, message) -> count
579                 pub lines: Mutex<HashMap<(String, String), usize>>,
580         }
581         impl Logger for TrackingLogger {
582                 fn log(&self, record: &Record) {
583                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
584                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
585                 }
586         }
587
588         #[test]
589         fn test_no_existing_test_breakage() {
590                 // To avoid accidentally causing all existing fuzz test cases to be useless by making minor
591                 // changes (such as requesting feerate info in a new place), we run a pretty full
592                 // step-through with two peers and HTLC forwarding here. Obviously this is pretty finicky,
593                 // so this should be updated pretty liberally, but at least we'll know when changes occur.
594                 // If nothing else, this test serves as a pretty great initial full_stack_target seed.
595
596                 // What each byte represents is broken down below, and then everything is concatenated into
597                 // one large test at the end (you want %s/ -.*//g %s/\n\| \|\t\|\///g).
598
599                 // Following BOLT 8, lightning message on the wire are: 2-byte encrypted message length + 
600                 // 16-byte MAC of the encrypted message length + encrypted Lightning message + 16-byte MAC
601                 // of the Lightning message
602                 // I.e 2nd inbound read, len 18 : 0006 (encrypted message length) + 03000000000000000000000000000000 (MAC of the encrypted message length)
603                 // Len 22 : 0010 00000000 (encrypted lightning message) + 03000000000000000000000000000000 (MAC of the Lightning message)
604
605                 // 0000000000000000000000000000000000000000000000000000000000000000 - our network key
606                 // 00000000 - fee_proportional_millionths
607                 // 01 - announce_channels_publicly
608                 //
609                 // 00 - new outbound connection with id 0
610                 // 030000000000000000000000000000000000000000000000000000000000000000 - peer's pubkey
611                 // 030032 - inbound read from peer id 0 of len 50
612                 // 00 030000000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - noise act two (0||pubkey||mac)
613                 //
614                 // 030012 - inbound read from peer id 0 of len 18
615                 // 0006 03000000000000000000000000000000 - message header indicating message length 6
616                 // 030016 - inbound read from peer id 0 of len 22
617                 // 0010 00000000 03000000000000000000000000000000 - init message with no features (type 16) and mac
618                 //
619                 // 030012 - inbound read from peer id 0 of len 18
620                 // 0141 03000000000000000000000000000000 - message header indicating message length 321
621                 // 0300fe - inbound read from peer id 0 of len 254
622                 // 0020 7500000000000000000000000000000000000000000000000000000000000000 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 000000000000c350 0000000000000000 0000000000000222 ffffffffffffffff 0000000000000222 0000000000000000 000000fd 0006 01e3 030000000000000000000000000000000000000000000000000000000000000001 030000000000000000000000000000000000000000000000000000000000000002 030000000000000000000000000000000000000000000000000000000000000003 030000000000000000000000000000000000000000000000000000000000000004 - beginning of open_channel message
623                 // 030053 - inbound read from peer id 0 of len 83
624                 // 030000000000000000000000000000000000000000000000000000000000000005 030000000000000000000000000000000000000000000000000000000000000000 01 03000000000000000000000000000000 - rest of open_channel and mac
625                 //
626                 // 00fd00fd00fd - Three feerate requests (all returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
627                 // - client should now respond with accept_channel (CHECK 1: type 33 to peer 03000000)
628                 //
629                 // 030012 - inbound read from peer id 0 of len 18
630                 // 0084 03000000000000000000000000000000 - message header indicating message length 132
631                 // 030094 - inbound read from peer id 0 of len 148
632                 // 0022 ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679 3d00000000000000000000000000000000000000000000000000000000000000 0000 5c000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 03000000000000000000000000000000 - funding_created and mac
633                 // - client should now respond with funding_signed (CHECK 2: type 35 to peer 03000000)
634                 //
635                 // 0c005e - connect a block with one transaction of len 94
636                 // 020000000100000000000000000000000000000000000000000000000000000000000000000000000000ffffffff0150c3000000000000220020ae0000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
637                 // 0c0000 - connect a block with no transactions
638                 // 0c0000 - connect a block with no transactions
639                 // 0c0000 - connect a block with no transactions
640                 // 0c0000 - connect a block with no transactions
641                 // 0c0000 - connect a block with no transactions
642                 // 0c0000 - connect a block with no transactions
643                 // 0c0000 - connect a block with no transactions
644                 // 0c0000 - connect a block with no transactions
645                 // 0c0000 - connect a block with no transactions
646                 // 0c0000 - connect a block with no transactions
647                 // 0c0000 - connect a block with no transactions
648                 // 0c0000 - connect a block with no transactions
649                 // - by now client should have sent a funding_locked (CHECK 3: SendFundingLocked to 03000000 for chan 3d000000)
650                 //
651                 // 030012 - inbound read from peer id 0 of len 18
652                 // 0043 03000000000000000000000000000000 - message header indicating message length 67
653                 // 030053 - inbound read from peer id 0 of len 83
654                 // 0024 3d00000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - funding_locked and mac
655                 //
656                 // 01 - new inbound connection with id 1
657                 // 030132 - inbound read from peer id 1 of len 50
658                 // 0003000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000 - inbound noise act 1
659                 // 030142 - inbound read from peer id 1 of len 66
660                 // 000302000000000000000000000000000000000000000000000000000000000000000300000000000000000000000000000003000000000000000000000000000000 - inbound noise act 3
661                 //
662                 // 030112 - inbound read from peer id 1 of len 18
663                 // 0006 01000000000000000000000000000000 - message header indicating message length 6
664                 // 030116 - inbound read from peer id 1 of len 22
665                 // 0010 00000000 01000000000000000000000000000000 - init message with no features (type 16)
666                 //
667                 // 05 01 030200000000000000000000000000000000000000000000000000000000000000 00c350 0003e8 - create outbound channel to peer 1 for 50k sat
668                 // 00fd00fd00fd - Three feerate requests (all returning min feerate) (gonna be ingested by FuzzEstimator)
669                 //
670                 // 030112 - inbound read from peer id 1 of len 18
671                 // 0110 01000000000000000000000000000000 - message header indicating message length 272
672                 // 0301ff - inbound read from peer id 1 of len 255
673                 // 0021 0000000000000000000000000000000000000000000000000000000000000e02 000000000000001a 00000000004c4b40 00000000000003e8 00000000000003e8 00000002 03f0 0005 030000000000000000000000000000000000000000000000000000000000000100 030000000000000000000000000000000000000000000000000000000000000200 030000000000000000000000000000000000000000000000000000000000000300 030000000000000000000000000000000000000000000000000000000000000400 030000000000000000000000000000000000000000000000000000000000000500 03000000000000000000000000000000 - beginning of accept_channel
674                 // 030121 - inbound read from peer id 1 of len 33
675                 // 0000000000000000000000000000000000 01000000000000000000000000000000 - rest of accept_channel and mac
676                 //
677                 // 0a - create the funding transaction (client should send funding_created now)
678                 //
679                 // 030112 - inbound read from peer id 1 of len 18
680                 // 0062 01000000000000000000000000000000 - message header indicating message length 98
681                 // 030172 - inbound read from peer id 1 of len 114
682                 // 0023 3900000000000000000000000000000000000000000000000000000000000000 f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 01000000000000000000000000000000 - funding_signed message and mac
683                 //
684                 // 0b - broadcast funding transaction
685                 // - by now client should have sent a funding_locked (CHECK 4: SendFundingLocked to 03020000 for chan 3f000000)
686                 //
687                 // 030112 - inbound read from peer id 1 of len 18
688                 // 0043 01000000000000000000000000000000 - message header indicating message length 67
689                 // 030153 - inbound read from peer id 1 of len 83
690                 // 0024 3900000000000000000000000000000000000000000000000000000000000000 030100000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - funding_locked and mac
691                 //
692                 // 030012 - inbound read from peer id 0 of len 18
693                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
694                 // 0300ff - inbound read from peer id 0 of len 255
695                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
696                 // 0300ff - inbound read from peer id 0 of len 255
697                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
698                 // 0300ff - inbound read from peer id 0 of len 255
699                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
700                 // 0300ff - inbound read from peer id 0 of len 255
701                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
702                 // 0300ff - inbound read from peer id 0 of len 255
703                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
704                 // 0300c1 - inbound read from peer id 0 of len 193
705                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
706                 //
707                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
708                 //
709                 // 030012 - inbound read from peer id 0 of len 18
710                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
711                 // 030074 - inbound read from peer id 0 of len 116
712                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 4d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
713                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6: types 133 and 132 to peer 03000000)
714                 //
715                 // 030012 - inbound read from peer id 0 of len 18
716                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
717                 // 030073 - inbound read from peer id 0 of len 115
718                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
719                 //
720                 // 07 - process the now-pending HTLC forward
721                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7: SendHTLCs event for node 03020000 with 1 HTLCs for channel 3f000000)
722                 //
723                 // - we respond with commitment_signed then revoke_and_ack (a weird, but valid, order)
724                 // 030112 - inbound read from peer id 1 of len 18
725                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
726                 // 030174 - inbound read from peer id 1 of len 116
727                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 f1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
728                 //
729                 // 030112 - inbound read from peer id 1 of len 18
730                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
731                 // 030173 - inbound read from peer id 1 of len 115
732                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000000 030200000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
733                 //
734                 // 030112 - inbound read from peer id 1 of len 18
735                 // 004a 01000000000000000000000000000000 - message header indicating message length 74
736                 // 03015a - inbound read from peer id 1 of len 90
737                 // 0082 3900000000000000000000000000000000000000000000000000000000000000 0000000000000000 ff00888888888888888888888888888888888888888888888888888888888888 01000000000000000000000000000000 - update_fulfill_htlc and mac
738                 // - client should immediately claim the pending HTLC from peer 0 (CHECK 8: SendFulfillHTLCs for node 03000000 with preimage ff00888888 for channel 3d000000)
739                 //
740                 // 030112 - inbound read from peer id 1 of len 18
741                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
742                 // 030174 - inbound read from peer id 1 of len 116
743                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
744                 //
745                 // 030112 - inbound read from peer id 1 of len 18
746                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
747                 // 030173 - inbound read from peer id 1 of len 115
748                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
749                 //
750                 // - before responding to the commitment_signed generated above, send a new HTLC
751                 // 030012 - inbound read from peer id 0 of len 18
752                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
753                 // 0300ff - inbound read from peer id 0 of len 255
754                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000000000003e80 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e000001000000000000000003e8000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
755                 // 0300ff - inbound read from peer id 0 of len 255
756                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
757                 // 0300ff - inbound read from peer id 0 of len 255
758                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
759                 // 0300ff - inbound read from peer id 0 of len 255
760                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
761                 // 0300ff - inbound read from peer id 0 of len 255
762                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
763                 // 0300c1 - inbound read from peer id 0 of len 193
764                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
765                 //
766                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
767                 //
768                 // - now respond to the update_fulfill_htlc+commitment_signed messages the client sent to peer 0
769                 // 030012 - inbound read from peer id 0 of len 18
770                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
771                 // 030073 - inbound read from peer id 0 of len 115
772                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0100000000000000000000000000000000000000000000000000000000000000 030300000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
773                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
774                 //
775                 // 030012 - inbound read from peer id 0 of len 18
776                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
777                 // 030074 - inbound read from peer id 0 of len 116
778                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 be000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
779                 //
780                 // 030012 - inbound read from peer id 0 of len 18
781                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
782                 // 030073 - inbound read from peer id 0 of len 115
783                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
784                 //
785                 // 07 - process the now-pending HTLC forward
786                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
787                 // - we respond with revoke_and_ack, then commitment_signed, then update_fail_htlc
788                 //
789                 // 030112 - inbound read from peer id 1 of len 18
790                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
791                 // 030174 - inbound read from peer id 1 of len 116
792                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fc000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
793                 //
794                 // 030112 - inbound read from peer id 1 of len 18
795                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
796                 // 030173 - inbound read from peer id 1 of len 115
797                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0200000000000000000000000000000000000000000000000000000000000000 030400000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
798                 //
799                 // 030112 - inbound read from peer id 1 of len 18
800                 // 002c 01000000000000000000000000000000 - message header indicating message length 44
801                 // 03013c - inbound read from peer id 1 of len 60
802                 // 0083 3900000000000000000000000000000000000000000000000000000000000000 0000000000000001 0000 01000000000000000000000000000000 - update_fail_htlc and mac
803                 //
804                 // 030112 - inbound read from peer id 1 of len 18
805                 // 0064 01000000000000000000000000000000 - message header indicating message length 100
806                 // 030174 - inbound read from peer id 1 of len 116
807                 // 0084 3900000000000000000000000000000000000000000000000000000000000000 fb000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000100 0000 01000000000000000000000000000000 - commitment_signed and mac
808                 //
809                 // 030112 - inbound read from peer id 1 of len 18
810                 // 0063 01000000000000000000000000000000 - message header indicating message length 99
811                 // 030173 - inbound read from peer id 1 of len 115
812                 // 0085 3900000000000000000000000000000000000000000000000000000000000000 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 01000000000000000000000000000000 - revoke_and_ack and mac
813                 //
814                 // 07 - process the now-pending HTLC forward
815                 // - client now sends id 0 update_fail_htlc and commitment_signed (CHECK 9)
816                 // - now respond to the update_fail_htlc+commitment_signed messages the client sent to peer 0
817                 //
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 0300000000000000000000000000000000000000000000000000000000000000 030500000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
822                 //
823                 // 030012 - inbound read from peer id 0 of len 18
824                 // 0064 03000000000000000000000000000000 - message header indicating message length 100
825                 // 030074 - inbound read from peer id 0 of len 116
826                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 4f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0000 03000000000000000000000000000000 - commitment_signed and mac
827                 // - client should now respond with revoke_and_ack (CHECK 5 duplicate)
828                 //
829                 // 030012 - inbound read from peer id 0 of len 18
830                 // 05ac 03000000000000000000000000000000 - message header indicating message length 1452
831                 // 0300ff - inbound read from peer id 0 of len 255
832                 // 0080 3d00000000000000000000000000000000000000000000000000000000000000 0000000000000002 00000000000b0838 ff00000000000000000000000000000000000000000000000000000000000000 00000121 00 030000000000000000000000000000000000000000000000000000000000000555 0000000e0000010000000000000003e800000000010000000000000000000000000a00000000000000000000000000000000000000000000000000000000000000 ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff - beginning of update_add_htlc from 0 to 1 via client
833                 // 0300ff - inbound read from peer id 0 of len 255
834                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
835                 // 0300ff - inbound read from peer id 0 of len 255
836                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
837                 // 0300ff - inbound read from peer id 0 of len 255
838                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
839                 // 0300ff - inbound read from peer id 0 of len 255
840                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff
841                 // 0300c1 - inbound read from peer id 0 of len 193
842                 // ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff ef00000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - end of update_add_htlc from 0 to 1 via client and mac
843                 //
844                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
845                 //
846                 // 030012 - inbound read from peer id 0 of len 18
847                 // 00a4 03000000000000000000000000000000 - message header indicating message length 164
848                 // 0300b4 - inbound read from peer id 0 of len 180
849                 // 0084 3d00000000000000000000000000000000000000000000000000000000000000 07000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001 0001 c8000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000007f00000000000000 03000000000000000000000000000000 - commitment_signed and mac
850                 // - client should now respond with revoke_and_ack and commitment_signed (CHECK 5/6 duplicates)
851                 //
852                 // 030012 - inbound read from peer id 0 of len 18
853                 // 0063 03000000000000000000000000000000 - message header indicating message length 99
854                 // 030073 - inbound read from peer id 0 of len 115
855                 // 0085 3d00000000000000000000000000000000000000000000000000000000000000 0400000000000000000000000000000000000000000000000000000000000000 030600000000000000000000000000000000000000000000000000000000000000 03000000000000000000000000000000 - revoke_and_ack and mac
856                 //
857                 // 07 - process the now-pending HTLC forward
858                 // - client now sends id 1 update_add_htlc and commitment_signed (CHECK 7 duplicate)
859                 //
860                 // 0c007d - connect a block with one transaction of len 125
861                 // 0200000001390000000000000000000000000000000000000000000000000000000000000000000000000000008002000100000000000022002090000000000000000000000000000000000000000000000000000000000000006cc10000000000001600145c0000000000000000000000000000000000000005000020 - the commitment transaction for channel 3f00000000000000000000000000000000000000000000000000000000000000
862                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
863                 // 00fd - A feerate request (returning min feerate, which our open_channel also uses) (gonna be ingested by FuzzEstimator)
864                 // 0c005e - connect a block with one transaction of len 94
865                 // 0200000001fd00000000000000000000000000000000000000000000000000000000000000000000000000000000014f00000000000000220020f60000000000000000000000000000000000000000000000000000000000000000000000 - the funding transaction
866                 // 0c0000 - connect a block with no transactions
867                 // 0c0000 - connect a block with no transactions
868                 // 0c0000 - connect a block with no transactions
869                 // 0c0000 - connect a block with no transactions
870                 // 0c0000 - connect a block with no transactions
871                 //
872                 // 07 - process the now-pending HTLC forward
873                 // - client now fails the HTLC backwards as it was unable to extract the payment preimage (CHECK 9 duplicate and CHECK 10)
874
875                 let logger = Arc::new(TrackingLogger { lines: Mutex::new(HashMap::new()) });
876                 super::do_test(&::hex::decode("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877
878                 let log_entries = logger.lines.lock().unwrap();
879                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendAcceptChannel event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel ff4f00f805273c1b203bb5ebf8436bfde57b3be8c2f5e95d9491dbb181909679".to_string())), Some(&1)); // 1
880                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingSigned event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 2
881                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 3
882                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendFundingLocked event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 for channel 3900000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 4
883                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling SendRevokeAndACK event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&4)); // 5
884                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 with 0 adds, 0 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 6
885                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030200000000000000000000000000000000000000000000000000000000000000 with 1 adds, 0 fulfills, 0 fails for channel 3900000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&3)); // 7
886                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 with 0 adds, 1 fulfills, 0 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&1)); // 8
887                 assert_eq!(log_entries.get(&("lightning::ln::peer_handler".to_string(), "Handling UpdateHTLCs event in peer_handler for node 030000000000000000000000000000000000000000000000000000000000000000 with 0 adds, 0 fulfills, 1 fails for channel 3d00000000000000000000000000000000000000000000000000000000000000".to_string())), Some(&2)); // 9
888                 assert_eq!(log_entries.get(&("lightning::ln::channelmonitor".to_string(), "Input spending remote commitment tx (00000000000000000000000000000000000000000000000000000000000000fd:0) in 0000000000000000000000000000000000000000000000000000000000000044 resolves outbound HTLC with payment hash ff00000000000000000000000000000000000000000000000000000000000000 with timeout".to_string())), Some(&1)); // 10
889         }
890 }