2 extern crate lightning;
3 extern crate secp256k1;
5 use bitcoin::blockdata::block::BlockHeader;
6 use bitcoin::blockdata::transaction::{Transaction, TxOut};
7 use bitcoin::util::hash::Sha256dHash;
8 use bitcoin::network::serialize::{serialize, BitcoinHash};
10 use lightning::ln::channel::{Channel, ChannelKeys};
11 use lightning::ln::channelmanager::{HTLCFailReason, HTLCSource, PendingHTLCStatus};
12 use lightning::ln::msgs;
13 use lightning::ln::msgs::{ErrorAction};
14 use lightning::chain::chaininterface::{FeeEstimator, ConfirmationTarget};
15 use lightning::chain::transaction::OutPoint;
16 use lightning::util::reset_rng_state;
17 use lightning::util::logger::Logger;
18 use lightning::util::ser::{Readable, Reader};
22 use utils::test_logger;
24 use secp256k1::key::{PublicKey, SecretKey};
25 use secp256k1::Secp256k1;
27 use std::sync::atomic::{AtomicUsize,Ordering};
31 pub fn slice_to_be16(v: &[u8]) -> u16 {
32 ((v[0] as u16) << 8*1) |
33 ((v[1] as u16) << 8*0)
37 pub fn slice_to_be32(v: &[u8]) -> u32 {
38 ((v[0] as u32) << 8*3) |
39 ((v[1] as u32) << 8*2) |
40 ((v[2] as u32) << 8*1) |
41 ((v[3] as u32) << 8*0)
45 pub fn slice_to_be64(v: &[u8]) -> u64 {
46 ((v[0] as u64) << 8*7) |
47 ((v[1] as u64) << 8*6) |
48 ((v[2] as u64) << 8*5) |
49 ((v[3] as u64) << 8*4) |
50 ((v[4] as u64) << 8*3) |
51 ((v[5] as u64) << 8*2) |
52 ((v[6] as u64) << 8*1) |
53 ((v[7] as u64) << 8*0)
57 fn slice_to_be24(v: &[u8]) -> u64 {
58 //TODO: We should probably be returning a Result for channel creation, not panic!()ing on
60 ((v[0] as u64) << 8*2) |
61 ((v[1] as u64) << 8*1) |
62 ((v[2] as u64) << 8*0)
65 struct InputData<'a> {
67 read_pos: AtomicUsize,
69 impl<'a> InputData<'a> {
70 fn get_slice(&self, len: usize) -> Option<&'a [u8]> {
71 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
72 if self.data.len() < old_pos + len {
75 Some(&self.data[old_pos..old_pos + len])
77 fn get_slice_nonadvancing(&self, len: usize) -> Option<&'a [u8]> {
78 let old_pos = self.read_pos.load(Ordering::Acquire);
79 if self.data.len() < old_pos + len {
82 Some(&self.data[old_pos..old_pos + len])
86 struct FuzzEstimator<'a> {
87 input: &'a InputData<'a>,
89 impl<'a> FeeEstimator for FuzzEstimator<'a> {
90 fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
91 //TODO: We should actually be testing at least much more than 64k...
92 match self.input.get_slice(2) {
93 Some(slice) => slice_to_be16(slice) as u64 * 250,
100 pub fn do_test(data: &[u8]) {
103 let input = InputData {
105 read_pos: AtomicUsize::new(0),
107 let fee_est = FuzzEstimator {
111 let logger: Arc<Logger> = Arc::new(test_logger::TestLogger{});
113 macro_rules! get_slice {
115 match input.get_slice($len as usize) {
116 Some(slice) => slice,
122 macro_rules! decode_msg {
123 ($MsgType: path, $len: expr) => {{
124 let mut reader = Reader::new(::std::io::Cursor::new(get_slice!($len)));
125 match <($MsgType)>::read(&mut reader) {
128 msgs::DecodeError::UnknownRealmByte => return,
129 msgs::DecodeError::UnknownRequiredFeature => return,
130 msgs::DecodeError::BadPublicKey => return,
131 msgs::DecodeError::BadSignature => return,
132 msgs::DecodeError::BadText => return,
133 msgs::DecodeError::ExtraAddressesPerType => return,
134 msgs::DecodeError::BadLengthDescriptor => return,
135 msgs::DecodeError::ShortRead => panic!("We picked the length..."),
136 msgs::DecodeError::InvalidValue => panic!("Should not happen with p2p message decoding"),
137 msgs::DecodeError::Io(e) => panic!(format!("{}", e)),
143 macro_rules! decode_msg_with_len16 {
144 ($MsgType: path, $begin_len: expr, $factor: expr) => {
146 let extra_len = slice_to_be16(&match input.get_slice_nonadvancing($begin_len as usize + 2) {
147 Some(slice) => slice,
149 }[$begin_len..$begin_len + 2]);
150 decode_msg!($MsgType, $begin_len as usize + 2 + (extra_len as usize)*$factor)
155 let secp_ctx = Secp256k1::new();
156 macro_rules! get_pubkey {
158 match PublicKey::from_slice(&secp_ctx, get_slice!(33)) {
165 macro_rules! return_err {
174 macro_rules! chan_keys {
177 funding_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
178 revocation_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
179 payment_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
180 delayed_payment_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
181 htlc_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
182 channel_close_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
183 channel_monitor_claim_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 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(),
184 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, 0, 0],
189 let their_pubkey = get_pubkey!();
191 let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
193 let mut channel = if get_slice!(1)[0] != 0 {
194 let chan_value = slice_to_be24(get_slice!(3));
196 let mut chan = match Channel::new_outbound(&fee_est, chan_keys!(), their_pubkey, chan_value, slice_to_be24(get_slice!(3)), get_slice!(1)[0] == 0, slice_to_be64(get_slice!(8)), Arc::clone(&logger)) {
200 chan.get_open_channel(Sha256dHash::from(get_slice!(32)), &fee_est);
201 let accept_chan = if get_slice!(1)[0] == 0 {
202 decode_msg_with_len16!(msgs::AcceptChannel, 270, 1)
204 decode_msg!(msgs::AcceptChannel, 270)
206 return_err!(chan.accept_channel(&accept_chan));
208 tx.output.push(TxOut{ value: chan_value, script_pubkey: chan.get_funding_redeemscript().to_v0_p2wsh() });
209 let funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0);
211 chan.get_outbound_funding_created(funding_output).unwrap();
212 let funding_signed = decode_msg!(msgs::FundingSigned, 32+64);
213 return_err!(chan.funding_signed(&funding_signed));
216 let open_chan = if get_slice!(1)[0] == 0 {
217 decode_msg_with_len16!(msgs::OpenChannel, 2*32+6*8+4+2*2+6*33+1, 1)
219 decode_msg!(msgs::OpenChannel, 2*32+6*8+4+2*2+6*33+1)
221 let mut chan = match Channel::new_from_req(&fee_est, chan_keys!(), their_pubkey, &open_chan, slice_to_be64(get_slice!(8)), false, get_slice!(1)[0] == 0, Arc::clone(&logger)) {
225 chan.get_accept_channel();
227 tx.output.push(TxOut{ value: open_chan.funding_satoshis, script_pubkey: chan.get_funding_redeemscript().to_v0_p2wsh() });
228 let funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0);
230 let mut funding_created = decode_msg!(msgs::FundingCreated, 32+32+2+64);
231 funding_created.funding_txid = funding_output.txid.clone();
232 funding_created.funding_output_index = funding_output.index;
233 return_err!(chan.funding_created(&funding_created));
237 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
238 channel.block_connected(&header, 1, &[&tx; 1], &[42; 1]);
240 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
241 channel.block_connected(&header, i, &[&tx; 0], &[0; 0]);
244 let funding_locked = decode_msg!(msgs::FundingLocked, 32+33);
245 return_err!(channel.funding_locked(&funding_locked));
247 macro_rules! test_err {
251 Err(e) => match e.action {
253 Some(ErrorAction::DisconnectPeer {..}) => return,
254 Some(ErrorAction::IgnoreError) => None,
255 Some(ErrorAction::SendErrorMessage {..}) => None,
262 match get_slice!(1)[0] {
264 test_err!(channel.send_htlc(slice_to_be64(get_slice!(8)), [42; 32], slice_to_be32(get_slice!(4)), HTLCSource::dummy(), msgs::OnionPacket {
265 version: get_slice!(1)[0],
266 public_key: PublicKey::from_slice(&secp_ctx, get_slice!(33)),
267 hop_data: [0; 20*65],
272 test_err!(channel.send_commitment());
275 let update_add_htlc = decode_msg!(msgs::UpdateAddHTLC, 32+8+8+32+4+4+33+20*65+32);
276 test_err!(channel.update_add_htlc(&update_add_htlc, PendingHTLCStatus::dummy()));
279 let update_fulfill_htlc = decode_msg!(msgs::UpdateFulfillHTLC, 32 + 8 + 32);
280 test_err!(channel.update_fulfill_htlc(&update_fulfill_htlc));
283 let update_fail_htlc = decode_msg_with_len16!(msgs::UpdateFailHTLC, 32 + 8, 1);
284 test_err!(channel.update_fail_htlc(&update_fail_htlc, HTLCFailReason::dummy()));
287 let update_fail_malformed_htlc = decode_msg!(msgs::UpdateFailMalformedHTLC, 32+8+32+2);
288 test_err!(channel.update_fail_malformed_htlc(&update_fail_malformed_htlc, HTLCFailReason::dummy()));
291 let commitment_signed = decode_msg_with_len16!(msgs::CommitmentSigned, 32+64, 64);
292 test_err!(channel.commitment_signed(&commitment_signed));
295 let revoke_and_ack = decode_msg!(msgs::RevokeAndACK, 32+32+33);
296 test_err!(channel.revoke_and_ack(&revoke_and_ack));
299 let update_fee = decode_msg!(msgs::UpdateFee, 32+4);
300 test_err!(channel.update_fee(&fee_est, &update_fee));
303 let shutdown = decode_msg_with_len16!(msgs::Shutdown, 32, 1);
304 test_err!(channel.shutdown(&fee_est, &shutdown));
305 if channel.is_shutdown() { return; }
308 let closing_signed = decode_msg!(msgs::ClosingSigned, 32+8+64);
309 let sign_res = test_err!(channel.closing_signed(&fee_est, &closing_signed));
310 if sign_res.is_some() && sign_res.unwrap().1.is_some() {
311 assert!(channel.is_shutdown());
320 #[cfg(feature = "afl")]
321 #[macro_use] extern crate afl;
322 #[cfg(feature = "afl")]
329 #[cfg(feature = "honggfuzz")]
330 #[macro_use] extern crate honggfuzz;
331 #[cfg(feature = "honggfuzz")]
344 fn duplicate_crash() {
345 super::do_test(&::hex::decode("00").unwrap());