1 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
2 use bitcoin::blockdata::script::{Script, Builder};
3 use bitcoin::blockdata::block::Block;
4 use bitcoin::blockdata::transaction::Transaction;
6 use lightning::chain::chaininterface::{ChainError,ChainWatchInterface};
7 use lightning::ln::channelmanager::ChannelDetails;
8 use lightning::ln::msgs;
9 use lightning::ln::msgs::{RoutingMessageHandler};
10 use lightning::ln::router::{Router, RouteHint};
11 use lightning::util::logger::Logger;
12 use lightning::util::ser::Readable;
14 use secp256k1::key::PublicKey;
16 use utils::test_logger;
19 use std::sync::atomic::{AtomicUsize, Ordering};
22 pub fn slice_to_be16(v: &[u8]) -> u16 {
23 ((v[0] as u16) << 8*1) |
24 ((v[1] as u16) << 8*0)
28 pub fn slice_to_be32(v: &[u8]) -> u32 {
29 ((v[0] as u32) << 8*3) |
30 ((v[1] as u32) << 8*2) |
31 ((v[2] as u32) << 8*1) |
32 ((v[3] as u32) << 8*0)
36 pub fn slice_to_be64(v: &[u8]) -> u64 {
37 ((v[0] as u64) << 8*7) |
38 ((v[1] as u64) << 8*6) |
39 ((v[2] as u64) << 8*5) |
40 ((v[3] as u64) << 8*4) |
41 ((v[4] as u64) << 8*3) |
42 ((v[5] as u64) << 8*2) |
43 ((v[6] as u64) << 8*1) |
44 ((v[7] as u64) << 8*0)
50 read_pos: AtomicUsize,
53 fn get_slice(&self, len: usize) -> Option<&[u8]> {
54 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
55 if self.data.len() < old_pos + len {
58 Some(&self.data[old_pos..old_pos + len])
60 fn get_slice_nonadvancing(&self, len: usize) -> Option<&[u8]> {
61 let old_pos = self.read_pos.load(Ordering::Acquire);
62 if self.data.len() < old_pos + len {
65 Some(&self.data[old_pos..old_pos + len])
69 struct DummyChainWatcher {
70 input: Arc<InputData>,
73 impl ChainWatchInterface for DummyChainWatcher {
74 fn install_watch_tx(&self, _txid: &Sha256dHash, _script_pub_key: &Script) { }
75 fn install_watch_outpoint(&self, _outpoint: (Sha256dHash, u32), _out_script: &Script) { }
76 fn watch_all_txn(&self) { }
77 fn filter_block<'a>(&self, _block: &'a Block) -> (Vec<&'a Transaction>, Vec<u32>) {
78 (Vec::new(), Vec::new())
80 fn reentered(&self) -> usize { 0 }
82 fn get_chain_utxo(&self, _genesis_hash: Sha256dHash, _unspent_tx_output_identifier: u64) -> Result<(Script, u64), ChainError> {
83 match self.input.get_slice(2) {
84 Some(&[0, _]) => Err(ChainError::NotSupported),
85 Some(&[1, _]) => Err(ChainError::NotWatched),
86 Some(&[2, _]) => Err(ChainError::UnknownTx),
87 Some(&[_, x]) => Ok((Builder::new().push_int(x as i64).into_script().to_v0_p2wsh(), 0)),
88 None => Err(ChainError::UnknownTx),
95 pub fn do_test(data: &[u8]) {
96 let input = Arc::new(InputData {
98 read_pos: AtomicUsize::new(0),
100 macro_rules! get_slice_nonadvancing {
102 match input.get_slice_nonadvancing($len as usize) {
103 Some(slice) => slice,
108 macro_rules! get_slice {
110 match input.get_slice($len as usize) {
111 Some(slice) => slice,
117 macro_rules! decode_msg {
118 ($MsgType: path, $len: expr) => {{
119 let mut reader = ::std::io::Cursor::new(get_slice!($len));
120 match <($MsgType)>::read(&mut reader) {
123 msgs::DecodeError::UnknownVersion => return,
124 msgs::DecodeError::UnknownRequiredFeature => return,
125 msgs::DecodeError::InvalidValue => return,
126 msgs::DecodeError::ExtraAddressesPerType => return,
127 msgs::DecodeError::BadLengthDescriptor => return,
128 msgs::DecodeError::ShortRead => panic!("We picked the length..."),
129 msgs::DecodeError::Io(e) => panic!(format!("{}", e)),
135 macro_rules! decode_msg_with_len16 {
136 ($MsgType: path, $begin_len: expr, $excess: expr) => {
138 let extra_len = slice_to_be16(&get_slice_nonadvancing!($begin_len as usize + 2)[$begin_len..$begin_len + 2]);
139 decode_msg!($MsgType, $begin_len as usize + 2 + (extra_len as usize) + $excess)
144 macro_rules! get_pubkey {
146 match PublicKey::from_slice(get_slice!(33)) {
153 let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned()));
154 let chain_monitor = Arc::new(DummyChainWatcher {
155 input: Arc::clone(&input),
158 let our_pubkey = get_pubkey!();
159 let router = Router::new(our_pubkey.clone(), chain_monitor, Arc::clone(&logger));
162 match get_slice!(1)[0] {
164 let start_len = slice_to_be16(&get_slice_nonadvancing!(64 + 2)[64..64 + 2]) as usize;
165 let addr_len = slice_to_be16(&get_slice_nonadvancing!(64+start_len+2 + 74)[64+start_len+2 + 72..64+start_len+2 + 74]);
166 if addr_len > (37+1)*4 {
169 let _ = router.handle_node_announcement(&decode_msg_with_len16!(msgs::NodeAnnouncement, 64, 288));
172 let _ = router.handle_channel_announcement(&decode_msg_with_len16!(msgs::ChannelAnnouncement, 64*4, 32+8+33*4));
175 let _ = router.handle_channel_update(&decode_msg!(msgs::ChannelUpdate, 128));
178 match get_slice!(1)[0] {
180 router.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelUpdateMessage {msg: decode_msg!(msgs::ChannelUpdate, 128)});
183 let short_channel_id = slice_to_be64(get_slice!(8));
184 router.handle_htlc_fail_channel_update(&msgs::HTLCFailChannelUpdate::ChannelClosed {short_channel_id, is_permanent: false});
190 let target = get_pubkey!();
191 let mut first_hops_vec = Vec::new();
192 let first_hops = match get_slice!(1)[0] {
195 let count = slice_to_be16(get_slice!(2));
197 first_hops_vec.push(ChannelDetails {
199 short_channel_id: Some(slice_to_be64(get_slice!(8))),
200 remote_network_id: get_pubkey!(),
201 channel_value_satoshis: slice_to_be64(get_slice!(8)),
203 inbound_capacity_msat: 0,
205 outbound_capacity_msat: 0,
208 Some(&first_hops_vec[..])
212 let mut last_hops_vec = Vec::new();
214 let count = slice_to_be16(get_slice!(2));
216 last_hops_vec.push(RouteHint {
217 src_node_id: get_pubkey!(),
218 short_channel_id: slice_to_be64(get_slice!(8)),
219 fee_base_msat: slice_to_be32(get_slice!(4)),
220 fee_proportional_millionths: slice_to_be32(get_slice!(4)),
221 cltv_expiry_delta: slice_to_be16(get_slice!(2)),
222 htlc_minimum_msat: slice_to_be64(get_slice!(8)),
227 let _ = router.get_route(&target, first_hops, last_hops, slice_to_be64(get_slice!(8)), slice_to_be32(get_slice!(4)));
235 pub extern "C" fn router_run(data: *const u8, datalen: usize) {
236 do_test(unsafe { std::slice::from_raw_parts(data, datalen) });
242 fn duplicate_crash() {
243 super::do_test(&::hex::decode("00").unwrap());