fuzz: Add LSPS message decoder fuzzing

fuzz/Cargo.toml

@@ -20,6 +20,8 @@ stdin_fuzz = []
 [dependencies]
 lightning = { path = "../lightning", features = ["regex", "_test_utils"] }
 lightning-invoice = { path = "../lightning-invoice" }
+lightning-liquidity = { path = "../lightning-liquidity" }
+lightning-persister = { path = "../lightning-persister" }
 lightning-rapid-gossip-sync = { path = "../lightning-rapid-gossip-sync" }
 bech32 = "0.11.0"
 bitcoin = { version = "0.32.2", features = ["secp-lowmemory"] }

fuzz/src/bin/gen_target.sh

@@ -26,6 +26,7 @@ GEN_TEST onion_hop_data
 GEN_TEST base32
 GEN_TEST fromstr_to_netaddress
 GEN_TEST feature_flags
+GEN_TEST lsps_message
 
 GEN_TEST msg_accept_channel msg_targets::
 GEN_TEST msg_announcement_signatures msg_targets::

fuzz/src/bin/lsps_message_target.rs

@@ -0,0 +1,120 @@
+// This file is Copyright its original authors, visible in version control
+// history.
+//
+// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
+// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// You may not use this file except in accordance with one or both of these
+// licenses.
+
+// This file is auto-generated by gen_target.sh based on target_template.txt
+// To modify it, modify target_template.txt and run gen_target.sh instead.
+
+#![cfg_attr(feature = "libfuzzer_fuzz", no_main)]
+#![cfg_attr(rustfmt, rustfmt_skip)]
+
+#[cfg(not(fuzzing))]
+compile_error!("Fuzz targets need cfg=fuzzing");
+
+#[cfg(not(hashes_fuzz))]
+compile_error!("Fuzz targets need cfg=hashes_fuzz");
+
+#[cfg(not(secp256k1_fuzz))]
+compile_error!("Fuzz targets need cfg=secp256k1_fuzz");
+
+extern crate lightning_fuzz;
+use lightning_fuzz::lsps_message::*;
+
+#[cfg(feature = "afl")]
+#[macro_use] extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+	fuzz!(|data| {
+		lsps_message_run(data.as_ptr(), data.len());
+	});
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+	loop {
+		fuzz!(|data| {
+			lsps_message_run(data.as_ptr(), data.len());
+		});
+	}
+}
+
+#[cfg(feature = "libfuzzer_fuzz")]
+#[macro_use] extern crate libfuzzer_sys;
+#[cfg(feature = "libfuzzer_fuzz")]
+fuzz_target!(|data: &[u8]| {
+	lsps_message_run(data.as_ptr(), data.len());
+});
+
+#[cfg(feature = "stdin_fuzz")]
+fn main() {
+	use std::io::Read;
+
+	let mut data = Vec::with_capacity(8192);
+	std::io::stdin().read_to_end(&mut data).unwrap();
+	lsps_message_run(data.as_ptr(), data.len());
+}
+
+#[test]
+fn run_test_cases() {
+	use std::fs;
+	use std::io::Read;
+	use lightning_fuzz::utils::test_logger::StringBuffer;
+
+	use std::sync::{atomic, Arc};
+	{
+		let data: Vec<u8> = vec![0];
+		lsps_message_run(data.as_ptr(), data.len());
+	}
+	let mut threads = Vec::new();
+	let threads_running = Arc::new(atomic::AtomicUsize::new(0));
+	if let Ok(tests) = fs::read_dir("test_cases/lsps_message") {
+		for test in tests {
+			let mut data: Vec<u8> = Vec::new();
+			let path = test.unwrap().path();
+			fs::File::open(&path).unwrap().read_to_end(&mut data).unwrap();
+			threads_running.fetch_add(1, atomic::Ordering::AcqRel);
+
+			let thread_count_ref = Arc::clone(&threads_running);
+			let main_thread_ref = std::thread::current();
+			threads.push((path.file_name().unwrap().to_str().unwrap().to_string(),
+				std::thread::spawn(move || {
+					let string_logger = StringBuffer::new();
+
+					let panic_logger = string_logger.clone();
+					let res = if ::std::panic::catch_unwind(move || {
+						lsps_message_test(&data, panic_logger);
+					}).is_err() {
+						Some(string_logger.into_string())
+					} else { None };
+					thread_count_ref.fetch_sub(1, atomic::Ordering::AcqRel);
+					main_thread_ref.unpark();
+					res
+				})
+			));
+			while threads_running.load(atomic::Ordering::Acquire) > 32 {
+				std::thread::park();
+			}
+		}
+	}
+	let mut failed_outputs = Vec::new();
+	for (test, thread) in threads.drain(..) {
+		if let Some(output) = thread.join().unwrap() {
+			println!("\nOutput of {}:\n{}\n", test, output);
+			failed_outputs.push(test);
+		}
+	}
+	if !failed_outputs.is_empty() {
+		println!("Test cases which failed: ");
+		for case in failed_outputs {
+			println!("{}", case);
+		}
+		panic!();
+	}
+}

fuzz/src/lib.rs

@@ -33,6 +33,7 @@ pub mod full_stack;
 pub mod indexedmap;
 pub mod invoice_deser;
 pub mod invoice_request_deser;
+pub mod lsps_message;
 pub mod offer_deser;
 pub mod onion_hop_data;
 pub mod onion_message;

fuzz/src/lsps_message.rs

@@ -0,0 +1,105 @@
+use crate::utils::test_logger;
+
+use bitcoin::blockdata::constants::genesis_block;
+use bitcoin::hashes::{sha256, Hash};
+use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
+use bitcoin::Network;
+
+use lightning::chain::Filter;
+use lightning::chain::{chainmonitor, BestBlock};
+use lightning::ln::channelmanager::{ChainParameters, ChannelManager};
+use lightning::ln::peer_handler::CustomMessageHandler;
+use lightning::ln::wire::CustomMessageReader;
+use lightning::onion_message::messenger::DefaultMessageRouter;
+use lightning::routing::gossip::NetworkGraph;
+use lightning::routing::router::DefaultRouter;
+use lightning::sign::KeysManager;
+use lightning::sign::NodeSigner;
+use lightning::util::config::UserConfig;
+use lightning::util::test_utils::{
+	TestBroadcaster, TestChainSource, TestFeeEstimator, TestLogger, TestScorer,
+};
+use lightning_persister::fs_store::FilesystemStore;
+
+use lightning_liquidity::lsps0::ser::LSPS_MESSAGE_TYPE_ID;
+use lightning_liquidity::LiquidityManager;
+
+use core::time::Duration;
+
+type LockingWrapper<T> = std::sync::Mutex<T>;
+
+use std::sync::Arc;
+
+pub fn do_test(data: &[u8]) {
+	let network = Network::Bitcoin;
+	let tx_broadcaster = Arc::new(TestBroadcaster::new(network));
+	let fee_estimator = Arc::new(TestFeeEstimator::new(253));
+	let logger = Arc::new(TestLogger::with_id("node".into()));
+	let genesis_block = genesis_block(network);
+	let network_graph = Arc::new(NetworkGraph::new(network, logger.clone()));
+	let scorer = Arc::new(LockingWrapper::new(TestScorer::new()));
+	let now = Duration::from_secs(genesis_block.header.time as u64);
+	let seed = sha256::Hash::hash(b"lsps-message-seed").to_byte_array();
+	let keys_manager = Arc::new(KeysManager::new(&seed, now.as_secs(), now.subsec_nanos()));
+	let router = Arc::new(DefaultRouter::new(
+		network_graph.clone(),
+		logger.clone(),
+		Arc::clone(&keys_manager),
+		scorer.clone(),
+		Default::default(),
+	));
+	let msg_router =
+		Arc::new(DefaultMessageRouter::new(network_graph.clone(), Arc::clone(&keys_manager)));
+	let chain_source = Arc::new(TestChainSource::new(Network::Bitcoin));
+	let kv_store = Arc::new(FilesystemStore::new("persister".into()));
+	let chain_monitor = Arc::new(chainmonitor::ChainMonitor::new(
+		Some(chain_source.clone()),
+		tx_broadcaster.clone(),
+		logger.clone(),
+		fee_estimator.clone(),
+		kv_store.clone(),
+		keys_manager.clone(),
+		keys_manager.get_peer_storage_key(),
+	));
+	let best_block = BestBlock::from_network(network);
+	let params = ChainParameters { network, best_block };
+	let manager = Arc::new(ChannelManager::new(
+		fee_estimator.clone(),
+		chain_monitor.clone(),
+		tx_broadcaster.clone(),
+		router.clone(),
+		msg_router.clone(),
+		logger.clone(),
+		keys_manager.clone(),
+		keys_manager.clone(),
+		keys_manager.clone(),
+		UserConfig::default(),
+		params,
+		genesis_block.header.time,
+	));
+
+	let liquidity_manager = Arc::new(LiquidityManager::new(
+		Arc::clone(&keys_manager),
+		Arc::clone(&manager),
+		None::<Arc<dyn Filter + Send + Sync>>,
+		None,
+		None,
+		None,
+	));
+	let mut reader = data;
+	if let Ok(Some(msg)) = liquidity_manager.read(LSPS_MESSAGE_TYPE_ID, &mut reader) {
+		let secp = Secp256k1::signing_only();
+		let sender_node_id =
+			PublicKey::from_secret_key(&secp, &SecretKey::from_slice(&[1; 32]).unwrap());
+		let _ = liquidity_manager.handle_custom_message(msg, sender_node_id);
+	}
+}
+
+pub fn lsps_message_test<Out: test_logger::Output>(data: &[u8], _out: Out) {
+	do_test(data);
+}
+
+#[no_mangle]
+pub extern "C" fn lsps_message_run(data: *const u8, datalen: usize) {
+	do_test(unsafe { core::slice::from_raw_parts(data, datalen) });
+}

fuzz/targets.h

@@ -19,6 +19,7 @@ void onion_hop_data_run(const unsigned char* data, size_t data_len);
 void base32_run(const unsigned char* data, size_t data_len);
 void fromstr_to_netaddress_run(const unsigned char* data, size_t data_len);
 void feature_flags_run(const unsigned char* data, size_t data_len);
+void lsps_message_run(const unsigned char* data, size_t data_len);
 void msg_accept_channel_run(const unsigned char* data, size_t data_len);
 void msg_announcement_signatures_run(const unsigned char* data, size_t data_len);
 void msg_channel_reestablish_run(const unsigned char* data, size_t data_len);