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;
24 use bitcoin::network::constants::Network;
25 use bitcoin::blockdata::constants::genesis_block;
27 use utils::test_logger;
29 use std::collections::HashSet;
31 use std::sync::atomic::{AtomicUsize, Ordering};
34 pub fn slice_to_be16(v: &[u8]) -> u16 {
35 ((v[0] as u16) << 8*1) |
36 ((v[1] as u16) << 8*0)
40 pub fn slice_to_be32(v: &[u8]) -> u32 {
41 ((v[0] as u32) << 8*3) |
42 ((v[1] as u32) << 8*2) |
43 ((v[2] as u32) << 8*1) |
44 ((v[3] as u32) << 8*0)
48 pub fn slice_to_be64(v: &[u8]) -> u64 {
49 ((v[0] as u64) << 8*7) |
50 ((v[1] as u64) << 8*6) |
51 ((v[2] as u64) << 8*5) |
52 ((v[3] as u64) << 8*4) |
53 ((v[4] as u64) << 8*3) |
54 ((v[5] as u64) << 8*2) |
55 ((v[6] as u64) << 8*1) |
56 ((v[7] as u64) << 8*0)
62 read_pos: AtomicUsize,
65 fn get_slice(&self, len: usize) -> Option<&[u8]> {
66 let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
67 if self.data.len() < old_pos + len {
70 Some(&self.data[old_pos..old_pos + len])
72 fn get_slice_nonadvancing(&self, len: usize) -> Option<&[u8]> {
73 let old_pos = self.read_pos.load(Ordering::Acquire);
74 if self.data.len() < old_pos + len {
77 Some(&self.data[old_pos..old_pos + len])
81 struct FuzzChainSource {
82 input: Arc<InputData>,
84 impl chain::Access for FuzzChainSource {
85 fn get_utxo(&self, _genesis_hash: &BlockHash, _short_channel_id: u64) -> Result<TxOut, chain::AccessError> {
86 match self.input.get_slice(2) {
87 Some(&[0, _]) => Err(chain::AccessError::UnknownChain),
88 Some(&[1, _]) => Err(chain::AccessError::UnknownTx),
89 Some(&[_, x]) => Ok(TxOut { value: 0, script_pubkey: Builder::new().push_int(x as i64).into_script().to_v0_p2wsh() }),
90 None => Err(chain::AccessError::UnknownTx),
97 pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
98 let input = Arc::new(InputData {
100 read_pos: AtomicUsize::new(0),
102 macro_rules! get_slice_nonadvancing {
104 match input.get_slice_nonadvancing($len as usize) {
105 Some(slice) => slice,
110 macro_rules! get_slice {
112 match input.get_slice($len as usize) {
113 Some(slice) => slice,
119 macro_rules! decode_msg {
120 ($MsgType: path, $len: expr) => {{
121 let mut reader = ::std::io::Cursor::new(get_slice!($len));
122 match <$MsgType>::read(&mut reader) {
124 assert_eq!(reader.position(), $len as u64);
128 msgs::DecodeError::UnknownVersion => return,
129 msgs::DecodeError::UnknownRequiredFeature => return,
130 msgs::DecodeError::InvalidValue => return,
131 msgs::DecodeError::BadLengthDescriptor => return,
132 msgs::DecodeError::ShortRead => panic!("We picked the length..."),
133 msgs::DecodeError::Io(e) => panic!(format!("{:?}", e)),
139 macro_rules! decode_msg_with_len16 {
140 ($MsgType: path, $excess: expr) => {
142 let extra_len = slice_to_be16(get_slice_nonadvancing!(2));
143 decode_msg!($MsgType, 2 + (extra_len as usize) + $excess)
148 macro_rules! get_pubkey {
150 match PublicKey::from_slice(get_slice!(33)) {
157 let logger: Arc<dyn Logger> = Arc::new(test_logger::TestLogger::new("".to_owned(), out));
159 let our_pubkey = get_pubkey!();
160 let mut net_graph = NetworkGraph::new(genesis_block(Network::Bitcoin).header.block_hash());
162 let mut node_pks = HashSet::new();
166 match get_slice!(1)[0] {
168 let start_len = slice_to_be16(&get_slice_nonadvancing!(2)[0..2]) as usize;
169 let addr_len = slice_to_be16(&get_slice_nonadvancing!(start_len+2 + 74)[start_len+2 + 72..start_len+2 + 74]);
170 if addr_len > (37+1)*4 {
173 let msg = decode_msg_with_len16!(msgs::UnsignedNodeAnnouncement, 288);
174 node_pks.insert(msg.node_id);
175 let _ = net_graph.update_node_from_unsigned_announcement(&msg);
178 let msg = decode_msg_with_len16!(msgs::UnsignedChannelAnnouncement, 32+8+33*4);
179 node_pks.insert(msg.node_id_1);
180 node_pks.insert(msg.node_id_2);
181 let _ = net_graph.update_channel_from_unsigned_announcement::<&FuzzChainSource>(&msg, &None);
184 let msg = decode_msg_with_len16!(msgs::UnsignedChannelAnnouncement, 32+8+33*4);
185 node_pks.insert(msg.node_id_1);
186 node_pks.insert(msg.node_id_2);
187 let _ = net_graph.update_channel_from_unsigned_announcement(&msg, &Some(&FuzzChainSource { input: Arc::clone(&input) }));
190 let _ = net_graph.update_channel_unsigned(&decode_msg!(msgs::UnsignedChannelUpdate, 72));
193 let short_channel_id = slice_to_be64(get_slice!(8));
194 net_graph.close_channel_from_update(short_channel_id, false);
196 _ if node_pks.is_empty() => {},
198 let mut first_hops_vec = Vec::new();
199 let first_hops = match get_slice!(1)[0] {
204 let rnid = node_pks.iter().skip(slice_to_be16(get_slice!(2))as usize % node_pks.len()).next().unwrap();
205 first_hops_vec.push(ChannelDetails {
207 short_channel_id: Some(scid),
208 remote_network_id: *rnid,
209 counterparty_features: InitFeatures::known(),
210 channel_value_satoshis: slice_to_be64(get_slice!(8)),
212 inbound_capacity_msat: 0,
214 outbound_capacity_msat: 0,
215 counterparty_forwarding_info: None,
218 Some(&first_hops_vec[..])
221 let mut last_hops_vec = Vec::new();
223 let count = get_slice!(1)[0];
226 let rnid = node_pks.iter().skip(slice_to_be16(get_slice!(2))as usize % node_pks.len()).next().unwrap();
227 last_hops_vec.push(RouteHint {
229 short_channel_id: scid,
231 base_msat: slice_to_be32(get_slice!(4)),
232 proportional_millionths: slice_to_be32(get_slice!(4)),
234 cltv_expiry_delta: slice_to_be16(get_slice!(2)),
235 htlc_minimum_msat: Some(slice_to_be64(get_slice!(8))),
236 htlc_maximum_msat: None,
240 let last_hops = &last_hops_vec[..];
241 for target in node_pks.iter() {
242 let _ = get_route(&our_pubkey, &net_graph, target, None,
243 first_hops.map(|c| c.iter().collect::<Vec<_>>()).as_ref().map(|a| a.as_slice()),
244 &last_hops.iter().collect::<Vec<_>>(),
245 slice_to_be64(get_slice!(8)), slice_to_be32(get_slice!(4)), Arc::clone(&logger));
252 pub fn router_test<Out: test_logger::Output>(data: &[u8], out: Out) {
257 pub extern "C" fn router_run(data: *const u8, datalen: usize) {
258 do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});