mirror of
https://github.com/lightningdevkit/rust-lightning.git
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286 lines
9 KiB
Rust
286 lines
9 KiB
Rust
// This file is Copyright its original authors, visible in version control
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// history.
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//
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// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
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// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
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// You may not use this file except in accordance with one or both of these
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// licenses.
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use bitcoin::blockdata::script::Builder;
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use bitcoin::blockdata::transaction::TxOut;
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use bitcoin::hash_types::BlockHash;
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use lightning::chain;
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use lightning::chain::transaction::OutPoint;
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use lightning::ln::channelmanager::{self, ChannelDetails, ChannelCounterparty};
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use lightning::ln::msgs;
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use lightning::routing::gossip::{NetworkGraph, RoutingFees};
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use lightning::routing::router::{find_route, PaymentParameters, RouteHint, RouteHintHop, RouteParameters};
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use lightning::routing::scoring::FixedPenaltyScorer;
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use lightning::util::ser::Readable;
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use bitcoin::hashes::Hash;
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use bitcoin::secp256k1::PublicKey;
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use bitcoin::network::constants::Network;
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use bitcoin::blockdata::constants::genesis_block;
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use crate::utils::test_logger;
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use std::convert::TryInto;
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use std::collections::HashSet;
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use std::sync::Arc;
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use std::sync::atomic::{AtomicUsize, Ordering};
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#[inline]
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pub fn slice_to_be16(v: &[u8]) -> u16 {
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((v[0] as u16) << 8*1) |
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((v[1] as u16) << 8*0)
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}
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#[inline]
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pub fn slice_to_be32(v: &[u8]) -> u32 {
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((v[0] as u32) << 8*3) |
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((v[1] as u32) << 8*2) |
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((v[2] as u32) << 8*1) |
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((v[3] as u32) << 8*0)
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}
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#[inline]
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pub fn slice_to_be64(v: &[u8]) -> u64 {
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((v[0] as u64) << 8*7) |
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((v[1] as u64) << 8*6) |
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((v[2] as u64) << 8*5) |
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((v[3] as u64) << 8*4) |
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((v[4] as u64) << 8*3) |
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((v[5] as u64) << 8*2) |
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((v[6] as u64) << 8*1) |
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((v[7] as u64) << 8*0)
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}
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struct InputData {
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data: Vec<u8>,
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read_pos: AtomicUsize,
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}
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impl InputData {
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fn get_slice(&self, len: usize) -> Option<&[u8]> {
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let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel);
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if self.data.len() < old_pos + len {
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return None;
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}
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Some(&self.data[old_pos..old_pos + len])
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}
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fn get_slice_nonadvancing(&self, len: usize) -> Option<&[u8]> {
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let old_pos = self.read_pos.load(Ordering::Acquire);
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if self.data.len() < old_pos + len {
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return None;
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}
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Some(&self.data[old_pos..old_pos + len])
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}
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}
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struct FuzzChainSource {
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input: Arc<InputData>,
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}
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impl chain::Access for FuzzChainSource {
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fn get_utxo(&self, _genesis_hash: &BlockHash, _short_channel_id: u64) -> Result<TxOut, chain::AccessError> {
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match self.input.get_slice(2) {
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Some(&[0, _]) => Err(chain::AccessError::UnknownChain),
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Some(&[1, _]) => Err(chain::AccessError::UnknownTx),
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Some(&[_, x]) => Ok(TxOut { value: 0, script_pubkey: Builder::new().push_int(x as i64).into_script().to_v0_p2wsh() }),
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None => Err(chain::AccessError::UnknownTx),
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_ => unreachable!(),
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}
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}
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}
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#[inline]
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pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
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let input = Arc::new(InputData {
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data: data.to_vec(),
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read_pos: AtomicUsize::new(0),
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});
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macro_rules! get_slice_nonadvancing {
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($len: expr) => {
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match input.get_slice_nonadvancing($len as usize) {
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Some(slice) => slice,
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None => return,
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}
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}
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}
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macro_rules! get_slice {
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($len: expr) => {
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match input.get_slice($len as usize) {
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Some(slice) => slice,
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None => return,
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}
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}
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}
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macro_rules! decode_msg {
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($MsgType: path, $len: expr) => {{
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let mut reader = ::std::io::Cursor::new(get_slice!($len));
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match <$MsgType>::read(&mut reader) {
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Ok(msg) => {
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assert_eq!(reader.position(), $len as u64);
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msg
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},
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Err(e) => match e {
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msgs::DecodeError::UnknownVersion => return,
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msgs::DecodeError::UnknownRequiredFeature => return,
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msgs::DecodeError::InvalidValue => return,
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msgs::DecodeError::BadLengthDescriptor => return,
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msgs::DecodeError::ShortRead => panic!("We picked the length..."),
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msgs::DecodeError::Io(e) => panic!("{:?}", e),
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msgs::DecodeError::UnsupportedCompression => return,
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}
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}
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}}
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}
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macro_rules! decode_msg_with_len16 {
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($MsgType: path, $excess: expr) => {
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{
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let extra_len = slice_to_be16(get_slice_nonadvancing!(2));
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decode_msg!($MsgType, 2 + (extra_len as usize) + $excess)
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}
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}
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}
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macro_rules! get_pubkey {
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() => {
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match PublicKey::from_slice(get_slice!(33)) {
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Ok(key) => key,
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Err(_) => return,
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}
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}
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}
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let logger = test_logger::TestLogger::new("".to_owned(), out);
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let our_pubkey = get_pubkey!();
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let net_graph = NetworkGraph::new(genesis_block(Network::Bitcoin).header.block_hash(), &logger);
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let mut node_pks = HashSet::new();
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let mut scid = 42;
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loop {
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match get_slice!(1)[0] {
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0 => {
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let start_len = slice_to_be16(&get_slice_nonadvancing!(2)[0..2]) as usize;
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let addr_len = slice_to_be16(&get_slice_nonadvancing!(start_len+2 + 74)[start_len+2 + 72..start_len+2 + 74]);
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if addr_len > (37+1)*4 {
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return;
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}
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let msg = decode_msg_with_len16!(msgs::UnsignedNodeAnnouncement, 288);
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node_pks.insert(msg.node_id);
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let _ = net_graph.update_node_from_unsigned_announcement(&msg);
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},
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1 => {
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let msg = decode_msg_with_len16!(msgs::UnsignedChannelAnnouncement, 32+8+33*4);
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node_pks.insert(msg.node_id_1);
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node_pks.insert(msg.node_id_2);
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let _ = net_graph.update_channel_from_unsigned_announcement::<&FuzzChainSource>(&msg, &None);
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},
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2 => {
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let msg = decode_msg_with_len16!(msgs::UnsignedChannelAnnouncement, 32+8+33*4);
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node_pks.insert(msg.node_id_1);
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node_pks.insert(msg.node_id_2);
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let _ = net_graph.update_channel_from_unsigned_announcement(&msg, &Some(&FuzzChainSource { input: Arc::clone(&input) }));
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},
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3 => {
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let _ = net_graph.update_channel_unsigned(&decode_msg!(msgs::UnsignedChannelUpdate, 72));
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},
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4 => {
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let short_channel_id = slice_to_be64(get_slice!(8));
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net_graph.channel_failed(short_channel_id, false);
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},
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_ if node_pks.is_empty() => {},
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_ => {
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let mut first_hops_vec = Vec::new();
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let first_hops = match get_slice!(1)[0] {
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0 => None,
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count => {
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for _ in 0..count {
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scid += 1;
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let rnid = node_pks.iter().skip(u16::from_be_bytes(get_slice!(2).try_into().unwrap()) as usize % node_pks.len()).next().unwrap();
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let capacity = u64::from_be_bytes(get_slice!(8).try_into().unwrap());
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first_hops_vec.push(ChannelDetails {
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channel_id: [0; 32],
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counterparty: ChannelCounterparty {
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node_id: *rnid,
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features: channelmanager::provided_init_features(),
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unspendable_punishment_reserve: 0,
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forwarding_info: None,
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outbound_htlc_minimum_msat: None,
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outbound_htlc_maximum_msat: None,
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},
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funding_txo: Some(OutPoint { txid: bitcoin::Txid::from_slice(&[0; 32]).unwrap(), index: 0 }),
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channel_type: None,
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short_channel_id: Some(scid),
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inbound_scid_alias: None,
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outbound_scid_alias: None,
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channel_value_satoshis: capacity,
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user_channel_id: 0, inbound_capacity_msat: 0,
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unspendable_punishment_reserve: None,
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confirmations_required: None,
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confirmations: None,
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force_close_spend_delay: None,
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is_outbound: true, is_channel_ready: true,
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is_usable: true, is_public: true,
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balance_msat: 0,
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outbound_capacity_msat: capacity.saturating_mul(1000),
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next_outbound_htlc_limit_msat: capacity.saturating_mul(1000),
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inbound_htlc_minimum_msat: None,
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inbound_htlc_maximum_msat: None,
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config: None,
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});
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}
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Some(&first_hops_vec[..])
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},
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};
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let mut last_hops = Vec::new();
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{
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let count = get_slice!(1)[0];
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for _ in 0..count {
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scid += 1;
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let rnid = node_pks.iter().skip(slice_to_be16(get_slice!(2))as usize % node_pks.len()).next().unwrap();
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last_hops.push(RouteHint(vec![RouteHintHop {
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src_node_id: *rnid,
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short_channel_id: scid,
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fees: RoutingFees {
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base_msat: slice_to_be32(get_slice!(4)),
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proportional_millionths: slice_to_be32(get_slice!(4)),
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},
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cltv_expiry_delta: slice_to_be16(get_slice!(2)),
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htlc_minimum_msat: Some(slice_to_be64(get_slice!(8))),
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htlc_maximum_msat: None,
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}]));
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}
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}
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let scorer = FixedPenaltyScorer::with_penalty(0);
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let random_seed_bytes: [u8; 32] = [get_slice!(1)[0]; 32];
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for target in node_pks.iter() {
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let route_params = RouteParameters {
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payment_params: PaymentParameters::from_node_id(*target).with_route_hints(last_hops.clone()),
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final_value_msat: slice_to_be64(get_slice!(8)),
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final_cltv_expiry_delta: slice_to_be32(get_slice!(4)),
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};
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let _ = find_route(&our_pubkey, &route_params, &net_graph,
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first_hops.map(|c| c.iter().collect::<Vec<_>>()).as_ref().map(|a| a.as_slice()),
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&logger, &scorer, &random_seed_bytes);
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}
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},
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}
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}
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}
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pub fn router_test<Out: test_logger::Output>(data: &[u8], out: Out) {
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do_test(data, out);
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}
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#[no_mangle]
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pub extern "C" fn router_run(data: *const u8, datalen: usize) {
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do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
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}
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