wip coverage

Author: joostjager

fuzz/Cargo.toml

@@ -27,6 +27,8 @@ bitcoin = { version = "0.32.2", features = ["secp-lowmemory"] }
 afl = { version = "0.12", optional = true }
 honggfuzz = { version = "0.5", optional = true, default-features = false }
 libfuzzer-sys = { version = "0.4", optional = true }
+component = "0.1.1"
+llvm-tools = "0.1.1"
 
 [build-dependencies]
 cc = "1.0"
@@ -40,6 +42,7 @@ lto = "off"
 debug-assertions = true
 overflow-checks = true
 opt-level = 0
+debug = true
 
 # When testing a large fuzz corpus, -O1 offers a nice speedup
 [profile.dev]

fuzz/src/process_onion_failure.rs

@@ -1,7 +1,12 @@
+// FUZZER COMMANDS:
+// RUSTFLAGS="--cfg hashes_fuzz --cfg=secp256k1_fuzz" cargo +nightly fuzz run --features "libfuzzer_fuzz" process_onion_failure_target
+// RUSTFLAGS="--cfg hashes_fuzz --cfg=secp256k1_fuzz" cargo +nightly fuzz coverage -v --features "libfuzzer_fuzz" process_onion_failure_target
+// llvm-cov show target/aarch64-apple-darwin/coverage/aarch64-apple-darwin/release/process_onion_failure_target --instr-profile=/Users/joost/repo/rust-lightning/fuzz/coverage/process_onion_failure_target/coverage.profdata --format=html --output-dir=reports
+
 use std::sync::Arc;
 
 use bitcoin::{key::Secp256k1, secp256k1::{PublicKey, SecretKey}};
-use lightning::{blinded_path::BlindedHop, ln::{channelmanager::{HTLCSource, PaymentId}, msgs::OnionErrorPacket}, routing::router::{BlindedTail, Path, RouteHop, TrampolineHop}, types::features::{ChannelFeatures, Features, NodeFeatures}, util::test_utils::TestLogger};
+use lightning::{blinded_path::BlindedHop, ln::{channelmanager::{HTLCSource, PaymentId}, msgs::OnionErrorPacket}, routing::router::{BlindedTail, Path, RouteHop, TrampolineHop}, types::features::{ChannelFeatures, Features, NodeFeatures}, util::{logger::Logger, test_utils::TestLogger}};
 
 // Imports that need to be added manually
 use crate::{utils::test_logger::{self}};
@@ -21,7 +26,9 @@ fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 		}
 
 		let secp_ctx = Secp256k1::new();
-		let logger: Arc<TestLogger> = Arc::new(TestLogger::new());
+
+		let logger: Arc<dyn Logger> =
+				Arc::new(test_logger::TestLogger::new("".to_owned(), out));
 
 		let first_hop_htlc_msat_bytes = match get_slice!(8).try_into() {
 			Ok(val) => val,
@@ -40,7 +47,7 @@ fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 
 		macro_rules! get_pubkey {
 			() => {
-				match PublicKey::from_slice(get_slice!(32)) {
+				match PublicKey::from_slice(get_slice!(33)) {
 					Ok(val) => val,
 					Err(_) => return,
 				}