1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 use bitcoin::blockdata::script::Builder;
11 use bitcoin::blockdata::transaction::TxOut;
12 use bitcoin::hash_types::BlockHash;
15 use lightning::ln::channelmanager::ChannelDetails;
16 use lightning::ln::features::InitFeatures;
17 use lightning::ln::msgs;
18 use lightning::routing::router::{get_route, RouteHint};
19 use lightning::util::logger::Logger;
20 use lightning::util::ser::Readable;
21 use lightning::routing::network_graph::{NetworkGraph, RoutingFees};
23 use bitcoin::secp256k1::key::PublicKey;
25 use utils::test_logger;
27 use std::collections::HashSet;
29 use std::sync::atomic::{AtomicUsize, Ordering};
32 pub fn slice_to_be16(v: &[u8]) -> u16 {
33 ((v[0] as u16) << 8*1) |
34 ((v[1] as u16) << 8*0)
38 pub fn slice_to_be32(v: &[u8]) -> u32 {
39 ((v[0] as u32) << 8*3) |
40 ((v[1] as u32) << 8*2) |
41 ((v[2] as u32) << 8*1) |
42 ((v[3] as u32) << 8*0)
46 pub fn slice_to_be64(v: &[u8]) -> u64 {
47 ((v[0] as u64) << 8*7) |
48 ((v[1] as u64) << 8*6) |
49 ((v[2] as u64) << 8*5) |
50 ((v[3] as u64) << 8*4) |
51 ((v[4] as u64) << 8*3) |
52 ((v[5] as u64) << 8*2) |
53 ((v[6] as u64) << 8*1) |
54 ((v[7] as u64) << 8*0)
60 read_pos: AtomicUsize,
63 fn get_slice(&self, len: usize) -> Option<&[u8]> {
64 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
65 if self.data.len() < old_pos + len {
68 Some(&self.data[old_pos..old_pos + len])
70 fn get_slice_nonadvancing(&self, len: usize) -> Option<&[u8]> {
71 let old_pos = self.read_pos.load(Ordering::Acquire);
72 if self.data.len() < old_pos + len {
75 Some(&self.data[old_pos..old_pos + len])
79 struct FuzzChainSource {
80 input: Arc<InputData>,
82 impl chain::Access for FuzzChainSource {
83 fn get_utxo(&self, _genesis_hash: &BlockHash, _short_channel_id: u64) -> Result<TxOut, chain::AccessError> {
84 match self.input.get_slice(2) {
85 Some(&[0, _]) => Err(chain::AccessError::UnknownChain),
86 Some(&[1, _]) => Err(chain::AccessError::UnknownTx),
87 Some(&[_, x]) => Ok(TxOut { value: 0, script_pubkey: Builder::new().push_int(x as i64).into_script().to_v0_p2wsh() }),
88 None => Err(chain::AccessError::UnknownTx),
95 pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
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) {
122 assert_eq!(reader.position(), $len as u64);
126 msgs::DecodeError::UnknownVersion => return,
127 msgs::DecodeError::UnknownRequiredFeature => return,
128 msgs::DecodeError::InvalidValue => return,
129 msgs::DecodeError::BadLengthDescriptor => return,
130 msgs::DecodeError::ShortRead => panic!("We picked the length..."),
131 msgs::DecodeError::Io(e) => panic!(format!("{}", e)),
137 macro_rules! decode_msg_with_len16 {
138 ($MsgType: path, $excess: expr) => {
140 let extra_len = slice_to_be16(get_slice_nonadvancing!(2));
141 decode_msg!($MsgType, 2 + (extra_len as usize) + $excess)
146 macro_rules! get_pubkey {
148 match PublicKey::from_slice(get_slice!(33)) {
155 let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
157 let our_pubkey = get_pubkey!();
158 let mut net_graph = NetworkGraph::new();
160 let mut node_pks = HashSet::new();
164 match get_slice!(1)[0] {
166 let start_len = slice_to_be16(&get_slice_nonadvancing!(2)[0..2]) as usize;
167 let addr_len = slice_to_be16(&get_slice_nonadvancing!(start_len+2 + 74)[start_len+2 + 72..start_len+2 + 74]);
168 if addr_len > (37+1)*4 {
171 let msg = decode_msg_with_len16!(msgs::UnsignedNodeAnnouncement, 288);
172 node_pks.insert(msg.node_id);
173 let _ = net_graph.update_node_from_unsigned_announcement(&msg);
176 let msg = decode_msg_with_len16!(msgs::UnsignedChannelAnnouncement, 32+8+33*4);
177 node_pks.insert(msg.node_id_1);
178 node_pks.insert(msg.node_id_2);
179 let _ = net_graph.update_channel_from_unsigned_announcement::<&FuzzChainSource>(&msg, &None);
182 let msg = decode_msg_with_len16!(msgs::UnsignedChannelAnnouncement, 32+8+33*4);
183 node_pks.insert(msg.node_id_1);
184 node_pks.insert(msg.node_id_2);
185 let _ = net_graph.update_channel_from_unsigned_announcement(&msg, &Some(&FuzzChainSource { input: Arc::clone(&input) }));
188 let _ = net_graph.update_channel_unsigned(&decode_msg!(msgs::UnsignedChannelUpdate, 72));
191 let short_channel_id = slice_to_be64(get_slice!(8));
192 net_graph.close_channel_from_update(short_channel_id, false);
194 _ if node_pks.is_empty() => {},
196 let mut first_hops_vec = Vec::new();
197 let first_hops = match get_slice!(1)[0] {
202 let rnid = node_pks.iter().skip(slice_to_be16(get_slice!(2))as usize % node_pks.len()).next().unwrap();
203 first_hops_vec.push(ChannelDetails {
205 short_channel_id: Some(scid),
206 remote_network_id: *rnid,
207 counterparty_features: InitFeatures::known(),
208 channel_value_satoshis: slice_to_be64(get_slice!(8)),
210 inbound_capacity_msat: 0,
212 outbound_capacity_msat: 0,
215 Some(&first_hops_vec[..])
218 let mut last_hops_vec = Vec::new();
220 let count = get_slice!(1)[0];
223 let rnid = node_pks.iter().skip(slice_to_be16(get_slice!(2))as usize % node_pks.len()).next().unwrap();
224 last_hops_vec.push(RouteHint {
226 short_channel_id: scid,
228 base_msat: slice_to_be32(get_slice!(4)),
229 proportional_millionths: slice_to_be32(get_slice!(4)),
231 cltv_expiry_delta: slice_to_be16(get_slice!(2)),
232 htlc_minimum_msat: slice_to_be64(get_slice!(8)),
236 let last_hops = &last_hops_vec[..];
237 for target in node_pks.iter() {
238 let _ = get_route(&our_pubkey, &net_graph, target,
239 first_hops.map(|c| c.iter().collect::<Vec<_>>()).as_ref().map(|a| a.as_slice()),
240 &last_hops.iter().collect::<Vec<_>>(),
241 slice_to_be64(get_slice!(8)), slice_to_be32(get_slice!(4)), Arc::clone(&logger));
248 pub fn router_test<Out: test_logger::Output>(data: &[u8], out: Out) {
253 pub extern "C" fn router_run(data: *const u8, datalen: usize) {
254 do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});