3 extern crate lightning;
4 extern crate secp256k1;
6 use bitcoin::blockdata::block::BlockHeader;
7 use bitcoin::blockdata::transaction::{Transaction, TxOut};
8 use bitcoin::blockdata::script::Script;
9 use bitcoin::network::constants::Network;
10 use bitcoin::network::serialize::{serialize, BitcoinHash};
11 use bitcoin::util::hash::Sha256dHash;
13 use crypto::sha2::Sha256;
14 use crypto::digest::Digest;
16 use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
17 use lightning::chain::transaction::OutPoint;
18 use lightning::ln::channelmonitor;
19 use lightning::ln::channelmanager::ChannelManager;
20 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor};
21 use lightning::ln::router::Router;
22 use lightning::util::events::{EventsProvider,Event};
23 use lightning::util::reset_rng_state;
25 use secp256k1::key::{PublicKey,SecretKey};
26 use secp256k1::Secp256k1;
28 use std::cell::RefCell;
29 use std::collections::HashMap;
32 use std::sync::atomic::{AtomicUsize,Ordering};
35 pub fn slice_to_be16(v: &[u8]) -> u16 {
36 ((v[0] as u16) << 8*1) |
37 ((v[1] as u16) << 8*0)
41 pub fn slice_to_be24(v: &[u8]) -> u32 {
42 ((v[0] as u32) << 8*2) |
43 ((v[1] as u32) << 8*1) |
44 ((v[2] as u32) << 8*0)
48 pub fn slice_to_be32(v: &[u8]) -> u32 {
49 ((v[0] as u32) << 8*3) |
50 ((v[1] as u32) << 8*2) |
51 ((v[2] as u32) << 8*1) |
52 ((v[3] as u32) << 8*0)
56 pub fn be64_to_array(u: u64) -> [u8; 8] {
58 v[0] = ((u >> 8*7) & 0xff) as u8;
59 v[1] = ((u >> 8*6) & 0xff) as u8;
60 v[2] = ((u >> 8*5) & 0xff) as u8;
61 v[3] = ((u >> 8*4) & 0xff) as u8;
62 v[4] = ((u >> 8*3) & 0xff) as u8;
63 v[5] = ((u >> 8*2) & 0xff) as u8;
64 v[6] = ((u >> 8*1) & 0xff) as u8;
65 v[7] = ((u >> 8*0) & 0xff) as u8;
71 read_pos: AtomicUsize,
74 fn get_slice(&self, len: usize) -> Option<&[u8]> {
75 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
76 if self.data.len() < old_pos + len {
79 Some(&self.data[old_pos..old_pos + len])
83 struct FuzzEstimator {
84 input: Arc<InputData>,
86 impl FeeEstimator for FuzzEstimator {
87 fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
88 //TODO: We should actually be testing at least much more than 64k...
89 match self.input.get_slice(2) {
90 Some(slice) => slice_to_be16(slice) as u64 * 250,
96 struct TestChannelMonitor {}
97 impl channelmonitor::ManyChannelMonitor for TestChannelMonitor {
98 fn add_update_monitor(&self, _funding_txo: OutPoint, _monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
104 struct TestBroadcaster {}
105 impl BroadcasterInterface for TestBroadcaster {
106 fn broadcast_transaction(&self, _tx: &Transaction) {}
112 peers_connected: &'a RefCell<[bool; 256]>,
114 impl<'a> SocketDescriptor for Peer<'a> {
115 fn send_data(&mut self, data: &Vec<u8>, write_offset: usize, _resume_read: bool) -> usize {
116 assert!(write_offset < data.len());
117 data.len() - write_offset
119 fn disconnect_socket(&mut self) {
120 assert!(self.peers_connected.borrow()[self.id as usize]);
121 self.peers_connected.borrow_mut()[self.id as usize] = false;
124 impl<'a> PartialEq for Peer<'a> {
125 fn eq(&self, other: &Self) -> bool {
129 impl<'a> Eq for Peer<'a> {}
130 impl<'a> Hash for Peer<'a> {
131 fn hash<H : std::hash::Hasher>(&self, h: &mut H) {
137 pub fn do_test(data: &[u8]) {
140 let input = Arc::new(InputData {
142 read_pos: AtomicUsize::new(0),
144 let fee_est = Arc::new(FuzzEstimator {
145 input: input.clone(),
148 macro_rules! get_slice {
150 match input.get_slice($len as usize) {
151 Some(slice) => slice,
157 let secp_ctx = Secp256k1::new();
158 macro_rules! get_pubkey {
160 match PublicKey::from_slice(&secp_ctx, get_slice!(33)) {
167 let our_network_key = match SecretKey::from_slice(&secp_ctx, get_slice!(32)) {
172 let monitor = Arc::new(TestChannelMonitor{});
173 let watch = Arc::new(ChainWatchInterfaceUtil::new());
174 let broadcast = Arc::new(TestBroadcaster{});
176 let channelmanager = ChannelManager::new(our_network_key, slice_to_be32(get_slice!(4)), get_slice!(1)[0] != 0, Network::Bitcoin, fee_est.clone(), monitor.clone(), watch.clone(), broadcast.clone()).unwrap();
177 let router = Arc::new(Router::new(PublicKey::from_secret_key(&secp_ctx, &our_network_key).unwrap()));
179 let peers = RefCell::new([false; 256]);
180 let handler = PeerManager::new(MessageHandler {
181 chan_handler: channelmanager.clone(),
182 route_handler: router.clone(),
185 let mut should_forward = false;
186 let mut payments_received = Vec::new();
187 let mut payments_sent = 0;
188 let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
189 let mut pending_funding_signatures = HashMap::new();
190 let mut pending_funding_relay = Vec::new();
193 match get_slice!(1)[0] {
197 if !peers.borrow()[i-1] {
202 if new_id == 0 { return; }
203 peers.borrow_mut()[new_id - 1] = true;
204 handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
209 if !peers.borrow()[i-1] {
214 if new_id == 0 { return; }
215 peers.borrow_mut()[new_id - 1] = true;
216 handler.new_inbound_connection(Peer{id: (new_id - 1) as u8, peers_connected: &peers}).unwrap();
219 let peer_id = get_slice!(1)[0];
220 if !peers.borrow()[peer_id as usize] { return; }
221 peers.borrow_mut()[peer_id as usize] = false;
222 handler.disconnect_event(&Peer{id: peer_id, peers_connected: &peers});
225 let peer_id = get_slice!(1)[0];
226 if !peers.borrow()[peer_id as usize] { return; }
227 match handler.read_event(&mut Peer{id: peer_id, peers_connected: &peers}, get_slice!(get_slice!(1)[0]).to_vec()) {
228 Ok(res) => assert!(!res),
229 Err(_) => { peers.borrow_mut()[peer_id as usize] = false; }
233 let value = slice_to_be24(get_slice!(3)) as u64;
234 let route = match router.get_route(&get_pubkey!(), None, &Vec::new(), value, 42) {
238 let mut payment_hash = [0; 32];
239 payment_hash[0..8].copy_from_slice(&be64_to_array(payments_sent));
240 let mut sha = Sha256::new();
241 sha.input(&payment_hash);
242 sha.result(&mut payment_hash);
243 for i in 1..32 { payment_hash[i] = 0; }
245 match channelmanager.send_payment(route, payment_hash) {
251 let peer_id = get_slice!(1)[0];
252 if !peers.borrow()[peer_id as usize] { return; }
253 let their_key = get_pubkey!();
254 let chan_value = slice_to_be24(get_slice!(3)) as u64;
255 if channelmanager.create_channel(their_key, chan_value, 0).is_err() { return; }
258 let mut channels = channelmanager.list_channels();
259 let channel_id = get_slice!(1)[0] as usize;
260 if channel_id >= channels.len() { return; }
261 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
262 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
266 channelmanager.process_pending_htlc_forwards();
267 handler.process_events();
268 should_forward = false;
272 for payment in payments_received.drain(..) {
273 let mut payment_preimage = None;
274 for i in 0..payments_sent {
275 let mut payment_hash = [0; 32];
276 payment_hash[0..8].copy_from_slice(&be64_to_array(i));
277 let mut sha = Sha256::new();
278 sha.input(&payment_hash);
279 sha.result(&mut payment_hash);
280 for i in 1..32 { payment_hash[i] = 0; }
281 if payment_hash == payment {
282 payment_hash = [0; 32];
283 payment_hash[0..8].copy_from_slice(&be64_to_array(i));
284 payment_preimage = Some(payment_hash);
288 channelmanager.claim_funds(payment_preimage.unwrap());
292 for payment in payments_received.drain(..) {
293 channelmanager.fail_htlc_backwards(&payment);
297 for funding_generation in pending_funding_generation.drain(..) {
298 let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
299 value: funding_generation.1, script_pubkey: funding_generation.2,
301 let funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0);
302 channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
303 pending_funding_signatures.insert(funding_output, tx);
307 if !pending_funding_relay.is_empty() {
308 let mut txn = Vec::with_capacity(pending_funding_relay.len());
309 let mut txn_idxs = Vec::with_capacity(pending_funding_relay.len());
310 for (idx, tx) in pending_funding_relay.iter().enumerate() {
312 txn_idxs.push(idx as u32 + 1);
315 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
316 channelmanager.block_connected(&header, 1, &txn[..], &txn_idxs[..]);
320 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
321 channelmanager.block_connected(&header, i, &txn[..], &txn_idxs[..]);
324 pending_funding_relay.clear();
328 for event in handler.get_and_clear_pending_events() {
330 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
331 pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
333 Event::FundingBroadcastSafe { funding_txo, .. } => {
334 pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
336 Event::PaymentReceived { payment_hash, .. } => {
337 payments_received.push(payment_hash);
339 Event::PaymentSent {..} => {},
340 Event::PaymentFailed {..} => {},
342 Event::PendingHTLCsForwardable {..} => {
343 should_forward = true;
345 _ => panic!("Unknown event"),
351 #[cfg(feature = "afl")]
353 #[cfg(feature = "afl")]
355 afl::read_stdio_bytes(|data| {
360 #[cfg(feature = "honggfuzz")]
361 #[macro_use] extern crate honggfuzz;
362 #[cfg(feature = "honggfuzz")]
373 fn extend_vec_from_hex(hex: &str, out: &mut Vec<u8>) {
375 for (idx, c) in hex.as_bytes().iter().enumerate() {
378 b'A'...b'F' => b |= c - b'A' + 10,
379 b'a'...b'f' => b |= c - b'a' + 10,
380 b'0'...b'9' => b |= c - b'0',
381 _ => panic!("Bad hex"),
391 fn duplicate_crash() {
392 let mut a = Vec::new();
393 extend_vec_from_hex("00", &mut a);