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::collections::HashMap;
30 use std::sync::atomic::{AtomicUsize,Ordering};
33 pub fn slice_to_be16(v: &[u8]) -> u16 {
34 ((v[0] as u16) << 8*1) |
35 ((v[1] as u16) << 8*0)
39 pub fn slice_to_be24(v: &[u8]) -> u32 {
40 ((v[0] as u32) << 8*2) |
41 ((v[1] as u32) << 8*1) |
42 ((v[2] as u32) << 8*0)
46 pub fn slice_to_be32(v: &[u8]) -> u32 {
47 ((v[0] as u32) << 8*3) |
48 ((v[1] as u32) << 8*2) |
49 ((v[2] as u32) << 8*1) |
50 ((v[3] as u32) << 8*0)
54 pub fn be64_to_array(u: u64) -> [u8; 8] {
56 v[0] = ((u >> 8*7) & 0xff) as u8;
57 v[1] = ((u >> 8*6) & 0xff) as u8;
58 v[2] = ((u >> 8*5) & 0xff) as u8;
59 v[3] = ((u >> 8*4) & 0xff) as u8;
60 v[4] = ((u >> 8*3) & 0xff) as u8;
61 v[5] = ((u >> 8*2) & 0xff) as u8;
62 v[6] = ((u >> 8*1) & 0xff) as u8;
63 v[7] = ((u >> 8*0) & 0xff) as u8;
69 read_pos: AtomicUsize,
72 fn get_slice(&self, len: usize) -> Option<&[u8]> {
73 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
74 if self.data.len() < old_pos + len {
77 Some(&self.data[old_pos..old_pos + len])
81 struct FuzzEstimator {
82 input: Arc<InputData>,
84 impl FeeEstimator for FuzzEstimator {
85 fn get_est_sat_per_vbyte(&self, _: ConfirmationTarget) -> u64 {
86 //TODO: We should actually be testing at least much more than 64k...
87 match self.input.get_slice(2) {
88 Some(slice) => slice_to_be16(slice) as u64,
94 struct TestChannelMonitor {}
95 impl channelmonitor::ManyChannelMonitor for TestChannelMonitor {
96 fn add_update_monitor(&self, _funding_txo: OutPoint, _monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
102 struct TestBroadcaster {}
103 impl BroadcasterInterface for TestBroadcaster {
104 fn broadcast_transaction(&self, _tx: &Transaction) {}
107 #[derive(Clone, PartialEq, Eq, Hash)]
111 impl SocketDescriptor for Peer {
112 fn send_data(&mut self, data: &Vec<u8>, write_offset: usize, _resume_read: bool) -> usize {
113 assert!(write_offset < data.len());
114 data.len() - write_offset
119 pub fn do_test(data: &[u8]) {
122 let input = Arc::new(InputData {
124 read_pos: AtomicUsize::new(0),
126 let fee_est = Arc::new(FuzzEstimator {
127 input: input.clone(),
130 macro_rules! get_slice {
132 match input.get_slice($len as usize) {
133 Some(slice) => slice,
139 let secp_ctx = Secp256k1::new();
140 macro_rules! get_pubkey {
142 match PublicKey::from_slice(&secp_ctx, get_slice!(33)) {
149 let our_network_key = match SecretKey::from_slice(&secp_ctx, get_slice!(32)) {
154 let monitor = Arc::new(TestChannelMonitor{});
155 let watch = Arc::new(ChainWatchInterfaceUtil::new());
156 let broadcast = Arc::new(TestBroadcaster{});
158 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();
159 let router = Arc::new(Router::new(PublicKey::from_secret_key(&secp_ctx, &our_network_key).unwrap()));
161 let handler = PeerManager::new(MessageHandler {
162 chan_handler: channelmanager.clone(),
163 route_handler: router.clone(),
166 let mut peers = [false; 256];
167 let mut should_forward = false;
168 let mut payments_received = Vec::new();
169 let mut payments_sent = 0;
170 let mut pending_funding_generation: Vec<([u8; 32], u64, Script)> = Vec::new();
171 let mut pending_funding_signatures = HashMap::new();
172 let mut pending_funding_relay = Vec::new();
175 match get_slice!(1)[0] {
184 if new_id == 0 { return; }
185 peers[new_id - 1] = true;
186 handler.new_outbound_connection(get_pubkey!(), Peer{id: (new_id - 1) as u8}).unwrap();
196 if new_id == 0 { return; }
197 peers[new_id - 1] = true;
198 handler.new_inbound_connection(Peer{id: (new_id - 1) as u8}).unwrap();
201 let peer_id = get_slice!(1)[0];
202 if !peers[peer_id as usize] { return; }
203 peers[peer_id as usize] = false;
204 handler.disconnect_event(&Peer{id: peer_id});
207 let peer_id = get_slice!(1)[0];
208 if !peers[peer_id as usize] { return; }
209 match handler.read_event(&mut Peer{id: peer_id}, get_slice!(get_slice!(1)[0]).to_vec()) {
210 Ok(res) => assert!(!res),
211 Err(_) => { peers[peer_id as usize] = false; }
215 let value = slice_to_be24(get_slice!(3)) as u64;
216 let route = match router.get_route(&get_pubkey!(), &Vec::new(), value, 42) {
220 let mut payment_hash = [0; 32];
221 payment_hash[0..8].copy_from_slice(&be64_to_array(payments_sent));
222 let mut sha = Sha256::new();
223 sha.input(&payment_hash);
224 sha.result(&mut payment_hash);
225 for i in 1..32 { payment_hash[i] = 0; }
227 match channelmanager.send_payment(route, payment_hash) {
233 let peer_id = get_slice!(1)[0];
234 if !peers[peer_id as usize] { return; }
235 let their_key = get_pubkey!();
236 let chan_value = slice_to_be24(get_slice!(3)) as u64;
237 if channelmanager.create_channel(their_key, chan_value, 0).is_err() { return; }
240 let mut channels = channelmanager.list_channels();
241 let channel_id = get_slice!(1)[0] as usize;
242 if channel_id >= channels.len() { return; }
243 channels.sort_by(|a, b| { a.channel_id.cmp(&b.channel_id) });
244 if channelmanager.close_channel(&channels[channel_id].channel_id).is_err() { return; }
248 channelmanager.process_pending_htlc_forward();
249 handler.process_events();
250 should_forward = false;
254 for payment in payments_received.drain(..) {
255 let mut payment_preimage = None;
256 for i in 0..payments_sent {
257 let mut payment_hash = [0; 32];
258 payment_hash[0..8].copy_from_slice(&be64_to_array(i));
259 let mut sha = Sha256::new();
260 sha.input(&payment_hash);
261 sha.result(&mut payment_hash);
262 for i in 1..32 { payment_hash[i] = 0; }
263 if payment_hash == payment {
264 payment_hash = [0; 32];
265 payment_hash[0..8].copy_from_slice(&be64_to_array(i));
266 payment_preimage = Some(payment_hash);
270 channelmanager.claim_funds(payment_preimage.unwrap());
274 for payment in payments_received.drain(..) {
275 channelmanager.fail_htlc_backwards(&payment);
279 for funding_generation in pending_funding_generation.drain(..) {
280 let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: vec![TxOut {
281 value: funding_generation.1, script_pubkey: funding_generation.2,
283 let funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0);
284 channelmanager.funding_transaction_generated(&funding_generation.0, funding_output.clone());
285 pending_funding_signatures.insert(funding_output, tx);
289 if !pending_funding_relay.is_empty() {
290 let mut txn = Vec::with_capacity(pending_funding_relay.len());
291 let mut txn_idxs = Vec::with_capacity(pending_funding_relay.len());
292 for (idx, tx) in pending_funding_relay.iter().enumerate() {
294 txn_idxs.push(idx as u32 + 1);
297 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
298 channelmanager.block_connected(&header, 1, &txn[..], &txn_idxs[..]);
302 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
303 channelmanager.block_connected(&header, i, &txn[..], &txn_idxs[..]);
306 pending_funding_relay.clear();
310 for event in handler.get_and_clear_pending_events() {
312 Event::FundingGenerationReady { temporary_channel_id, channel_value_satoshis, output_script, .. } => {
313 pending_funding_generation.push((temporary_channel_id, channel_value_satoshis, output_script));
315 Event::FundingBroadcastSafe { funding_txo, .. } => {
316 pending_funding_relay.push(pending_funding_signatures.remove(&funding_txo).unwrap());
318 Event::PaymentReceived { payment_hash, .. } => {
319 payments_received.push(payment_hash);
321 Event::PaymentSent {..} => {},
322 Event::PaymentFailed {..} => {},
324 Event::PendingHTLCsForwardable {..} => {
325 should_forward = true;
327 _ => panic!("Unknown event"),
333 #[cfg(feature = "afl")]
335 #[cfg(feature = "afl")]
337 afl::read_stdio_bytes(|data| {
342 #[cfg(feature = "honggfuzz")]
343 #[macro_use] extern crate honggfuzz;
344 #[cfg(feature = "honggfuzz")]
355 fn extend_vec_from_hex(hex: &str, out: &mut Vec<u8>) {
357 for (idx, c) in hex.as_bytes().iter().enumerate() {
360 b'A'...b'F' => b |= c - b'A' + 10,
361 b'a'...b'f' => b |= c - b'a' + 10,
362 b'0'...b'9' => b |= c - b'0',
363 _ => panic!("Bad hex"),
373 fn duplicate_crash() {
374 let mut a = Vec::new();
375 extend_vec_from_hex("00", &mut a);