_ Git - rust-lightning/blob - fuzz/src/onion_message.rs

   1 // Imports that need to be added manually
   2 use bech32::u5;
   3 use bitcoin::blockdata::script::ScriptBuf;
   4 use bitcoin::secp256k1::{PublicKey, Scalar, Secp256k1, SecretKey, self};
   5 use bitcoin::secp256k1::ecdh::SharedSecret;
   6 use bitcoin::secp256k1::ecdsa::RecoverableSignature;
   7 use bitcoin::secp256k1::schnorr;
   8
   9 use lightning::blinded_path::{BlindedPath, EmptyNodeIdLookUp};
  10 use lightning::blinded_path::message::ForwardNode;
  11 use lightning::ln::features::InitFeatures;
  12 use lightning::ln::msgs::{self, DecodeError, OnionMessageHandler};
  13 use lightning::ln::script::ShutdownScript;
  14 use lightning::offers::invoice::UnsignedBolt12Invoice;
  15 use lightning::offers::invoice_request::UnsignedInvoiceRequest;
  16 use lightning::sign::{Recipient, KeyMaterial, EntropySource, NodeSigner, SignerProvider};
  17 use lightning::util::test_channel_signer::TestChannelSigner;
  18 use lightning::util::logger::Logger;
  19 use lightning::util::ser::{Readable, Writeable, Writer};
  20 use lightning::onion_message::messenger::{CustomOnionMessageHandler, Destination, MessageRouter, OnionMessagePath, OnionMessenger, PendingOnionMessage, Responder, ResponseInstruction};
  21 use lightning::onion_message::offers::{OffersMessage, OffersMessageHandler};
  22 use lightning::onion_message::packet::OnionMessageContents;
  23
  24 use crate::utils::test_logger;
  25
  26 use std::io::{self, Cursor};
  27 use std::sync::atomic::{AtomicU64, Ordering};
  28
  29 #[inline]
  30 /// Actual fuzz test, method signature and name are fixed
  31 pub fn do_test<L: Logger>(data: &[u8], logger: &L) {
  32         if let Ok(msg) = <msgs::OnionMessage as Readable>::read(&mut Cursor::new(data)) {
  33                 let mut secret_bytes = [1; 32];
  34                 secret_bytes[31] = 2;
  35                 let secret = SecretKey::from_slice(&secret_bytes).unwrap();
  36                 let keys_manager = KeyProvider {
  37                         node_secret: secret,
  38                         counter: AtomicU64::new(0),
  39                 };
  40                 let node_id_lookup = EmptyNodeIdLookUp {};
  41                 let message_router = TestMessageRouter {};
  42                 let offers_msg_handler = TestOffersMessageHandler {};
  43                 let custom_msg_handler = TestCustomMessageHandler {};
  44                 let onion_messenger = OnionMessenger::new(
  45                         &keys_manager, &keys_manager, logger, &node_id_lookup, &message_router,
  46                         &offers_msg_handler, &custom_msg_handler
  47                 );
  48
  49                 let peer_node_id = {
  50                         let mut secret_bytes = [0; 32];
  51                         secret_bytes[31] = 2;
  52                         let secret = SecretKey::from_slice(&secret_bytes).unwrap();
  53                         PublicKey::from_secret_key(&Secp256k1::signing_only(), &secret)
  54                 };
  55
  56                 let mut features = InitFeatures::empty();
  57                 features.set_onion_messages_optional();
  58                 let init = msgs::Init { features, networks: None, remote_network_address: None };
  59
  60                 onion_messenger.peer_connected(&peer_node_id, &init, false).unwrap();
  61                 onion_messenger.handle_onion_message(&peer_node_id, &msg);
  62         }
  63 }
  64
  65 /// Method that needs to be added manually, {name}_test
  66 pub fn onion_message_test<Out: test_logger::Output>(data: &[u8], out: Out) {
  67         let logger = test_logger::TestLogger::new("".to_owned(), out);
  68         do_test(data, &logger);
  69 }
  70
  71 /// Method that needs to be added manually, {name}_run
  72 #[no_mangle]
  73 pub extern "C" fn onion_message_run(data: *const u8, datalen: usize) {
  74         let logger = test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {});
  75         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
  76 }
  77
  78 struct TestMessageRouter {}
  79
  80 impl MessageRouter for TestMessageRouter {
  81         fn find_path(
  82                 &self, _sender: PublicKey, _peers: Vec<PublicKey>, destination: Destination
  83         ) -> Result<OnionMessagePath, ()> {
  84                 Ok(OnionMessagePath {
  85                         intermediate_nodes: vec![],
  86                         destination,
  87                         first_node_addresses: None,
  88                 })
  89         }
  90
  91         fn create_blinded_paths<T: secp256k1::Signing + secp256k1::Verification>(
  92                 &self, _recipient: PublicKey, _peers: Vec<ForwardNode>, _secp_ctx: &Secp256k1<T>,
  93         ) -> Result<Vec<BlindedPath>, ()> {
  94                 unreachable!()
  95         }
  96 }
  97
  98 struct TestOffersMessageHandler {}
  99
 100 impl OffersMessageHandler for TestOffersMessageHandler {
 101         fn handle_message(&self, _message: OffersMessage, _responder: Option<Responder>) -> ResponseInstruction<OffersMessage> {
 102                 ResponseInstruction::NoResponse
 103         }
 104 }
 105
 106 #[derive(Debug)]
 107 struct TestCustomMessage {}
 108
 109 const CUSTOM_MESSAGE_TYPE: u64 = 4242;
 110 const CUSTOM_MESSAGE_CONTENTS: [u8; 32] = [42; 32];
 111
 112 impl OnionMessageContents for TestCustomMessage {
 113         fn tlv_type(&self) -> u64 {
 114                 CUSTOM_MESSAGE_TYPE
 115         }
 116         fn msg_type(&self) -> &'static str {
 117                 "Custom Message"
 118         }
 119 }
 120
 121 impl Writeable for TestCustomMessage {
 122         fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
 123                 Ok(CUSTOM_MESSAGE_CONTENTS.write(w)?)
 124         }
 125 }
 126
 127 struct TestCustomMessageHandler {}
 128
 129 impl CustomOnionMessageHandler for TestCustomMessageHandler {
 130         type CustomMessage = TestCustomMessage;
 131         fn handle_custom_message(&self, message: Self::CustomMessage, responder: Option<Responder>) -> ResponseInstruction<Self::CustomMessage> {
 132                 match responder {
 133                         Some(responder) => responder.respond(message),
 134                         None => ResponseInstruction::NoResponse
 135                 }
 136         }
 137         fn read_custom_message<R: io::Read>(&self, _message_type: u64, buffer: &mut R) -> Result<Option<Self::CustomMessage>, msgs::DecodeError> {
 138                 let mut buf = Vec::new();
 139                 buffer.read_to_end(&mut buf)?;
 140                 return Ok(Some(TestCustomMessage {}))
 141         }
 142         fn release_pending_custom_messages(&self) -> Vec<PendingOnionMessage<Self::CustomMessage>> {
 143                 vec![]
 144         }
 145 }
 146
 147 pub struct VecWriter(pub Vec<u8>);
 148 impl Writer for VecWriter {
 149         fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
 150                 self.0.extend_from_slice(buf);
 151                 Ok(())
 152         }
 153 }
 154 struct KeyProvider {
 155         node_secret: SecretKey,
 156         counter: AtomicU64,
 157 }
 158
 159 impl EntropySource for KeyProvider {
 160         fn get_secure_random_bytes(&self) -> [u8; 32] {
 161                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 162                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 163                         (ctr >> 8*7) as u8, (ctr >> 8*6) as u8, (ctr >> 8*5) as u8, (ctr >> 8*4) as u8, (ctr >> 8*3) as u8, (ctr >> 8*2) as u8, (ctr >> 8*1) as u8, 14, (ctr >> 8*0) as u8]
 164         }
 165 }
 166
 167 impl NodeSigner for KeyProvider {
 168         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
 169                 let node_secret = match recipient {
 170                         Recipient::Node => Ok(&self.node_secret),
 171                         Recipient::PhantomNode => Err(())
 172                 }?;
 173                 Ok(PublicKey::from_secret_key(&Secp256k1::signing_only(), node_secret))
 174         }
 175
 176         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&Scalar>) -> Result<SharedSecret, ()> {
 177                 let mut node_secret = match recipient {
 178                         Recipient::Node => Ok(self.node_secret.clone()),
 179                         Recipient::PhantomNode => Err(())
 180                 }?;
 181                 if let Some(tweak) = tweak {
 182                         node_secret = node_secret.mul_tweak(tweak).map_err(|_| ())?;
 183                 }
 184                 Ok(SharedSecret::new(other_key, &node_secret))
 185         }
 186
 187         fn get_inbound_payment_key_material(&self) -> KeyMaterial { unreachable!() }
 188
 189         fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5], _recipient: Recipient) -> Result<RecoverableSignature, ()> {
 190                 unreachable!()
 191         }
 192
 193         fn sign_bolt12_invoice_request(
 194                 &self, _invoice_request: &UnsignedInvoiceRequest
 195         ) -> Result<schnorr::Signature, ()> {
 196                 unreachable!()
 197         }
 198
 199         fn sign_bolt12_invoice(
 200                 &self, _invoice: &UnsignedBolt12Invoice,
 201         ) -> Result<schnorr::Signature, ()> {
 202                 unreachable!()
 203         }
 204
 205         fn sign_gossip_message(&self, _msg: lightning::ln::msgs::UnsignedGossipMessage) -> Result<bitcoin::secp256k1::ecdsa::Signature, ()> {
 206                 unreachable!()
 207         }
 208 }
 209
 210 impl SignerProvider for KeyProvider {
 211         type EcdsaSigner = TestChannelSigner;
 212         #[cfg(taproot)]
 213         type TaprootSigner = TestChannelSigner;
 214
 215         fn generate_channel_keys_id(&self, _inbound: bool, _channel_value_satoshis: u64, _user_channel_id: u128) -> [u8; 32] { unreachable!() }
 216
 217         fn derive_channel_signer(&self, _channel_value_satoshis: u64, _channel_keys_id: [u8; 32]) -> Self::EcdsaSigner {
 218                 unreachable!()
 219         }
 220
 221         fn read_chan_signer(&self, _data: &[u8]) -> Result<TestChannelSigner, DecodeError> { unreachable!() }
 222
 223         fn get_destination_script(&self, _channel_keys_id: [u8; 32]) -> Result<ScriptBuf, ()> { unreachable!() }
 224
 225         fn get_shutdown_scriptpubkey(&self) -> Result<ShutdownScript, ()> { unreachable!() }
 226 }
 227
 228 #[cfg(test)]
 229 mod tests {
 230         use bitcoin::hashes::hex::FromHex;
 231         use lightning::util::logger::{Logger, Record};
 232         use std::collections::HashMap;
 233         use std::sync::Mutex;
 234
 235         struct TrackingLogger {
 236                 /// (module, message) -> count
 237                 pub lines: Mutex<HashMap<(String, String), usize>>,
 238         }
 239         impl Logger for TrackingLogger {
 240                 fn log(&self, record: Record) {
 241                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 242                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 243                 }
 244         }
 245
 246         #[test]
 247         fn test_no_onion_message_breakage() {
 248                 let one_hop_om = "\
 249                         020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000\
 250                         000000000000000000000000000000000000000000000000e01ae0276020000000000000000000000000000\
 251                         000000000000000000000000000000000002020000000000000000000000000000000000000000000000000\
 252                         000000000000e0101022a0000000000000000000000000000014551231950b75fc4402da1732fc9bebf0010\
 253                         9500000000000000000000000000000004106d000000000000000000000000000000fd1092202a2a2a2a2a2\
 254                         a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a0000000000000000000000000000000000\
 255                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 256                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 257                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 258                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 259                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 260                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 261                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 262                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 263                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 264                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 265                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 266                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 267                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 268                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 269                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 270                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 271                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 272                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 273                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 274                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 275                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 276                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 277                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 278                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 279                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 280                         000000000000000000000000000000000000000005600000000000000000000000000000000000000000000\
 281                         000000000000000000";
 282                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 283                 super::do_test(&<Vec<u8>>::from_hex(one_hop_om).unwrap(), &logger);
 284                 {
 285                         let log_entries = logger.lines.lock().unwrap();
 286                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(),
 287                                                 "Received an onion message with path_id None and a reply_path: Custom(TestCustomMessage)"
 288                                                 .to_string())), Some(&1));
 289                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(),
 290                                                 "Constructing onion message when responding with Custom Message to an onion message with path_id None: TestCustomMessage".to_string())), Some(&1));
 291                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(),
 292                                                 "Buffered onion message when responding with Custom Message to an onion message with path_id None".to_string())), Some(&1));
 293                 }
 294
 295                 let two_unblinded_hops_om = "\
 296                         020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000\
 297                         000000000000000000000000000000000000000000000000e01350433042102020202020202020202020202\
 298                         02020202020202020202020202020202020202026d000000000000000000000000000000eb0000000000000\
 299                         000000000000000000000000000000000000000000000000036041096000000000000000000000000000000\
 300                         fd1092202a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a000000000000000\
 301                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 302                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 303                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 304                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 305                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 306                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 307                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 308                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 309                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 310                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 311                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 312                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 313                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 314                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 315                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 316                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 317                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 318                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 319                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 320                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 321                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 322                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 323                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 324                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 325                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 326                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 327                         000000000000000000000000000000000000000004800000000000000000000000000000000000000000000\
 328                         000000000000000000";
 329                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 330                 super::do_test(&<Vec<u8>>::from_hex(two_unblinded_hops_om).unwrap(), &logger);
 331                 {
 332                         let log_entries = logger.lines.lock().unwrap();
 333                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(), "Forwarding an onion message to peer 020202020202020202020202020202020202020202020202020202020202020202".to_string())), Some(&1));
 334                 }
 335
 336                 let two_unblinded_two_blinded_om = "\
 337                         020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000\
 338                         000000000000000000000000000000000000000000000000e01350433042102020202020202020202020202\
 339                         02020202020202020202020202020202020202026d0000000000000000000000000000009e0000000000000\
 340                         000000000000000000000000000000000000000000000000058045604210203030303030303030303030303\
 341                         030303030303030303030303030303030303020821020000000000000000000000000000000000000000000\
 342                         000000000000000000e0196000000000000000000000000000000e900000000000000000000000000000000\
 343                         000000000000000000000000000000350433042102040404040404040404040404040404040404040404040\
 344                         4040404040404040402ca000000000000000000000000000000420000000000000000000000000000000000\
 345                         00000000000000000000000000003604103f000000000000000000000000000000fd1092202a2a2a2a2a2a2\
 346                         a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a000000000000000000000000000000000000\
 347                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 348                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 349                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 350                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 351                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 352                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 353                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 354                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 355                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 356                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 357                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 358                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 359                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 360                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 361                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 362                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 363                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 364                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 365                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 366                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 367                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 368                         000000000000000000000000000000000000000004800000000000000000000000000000000000000000000\
 369                         000000000000000000";
 370                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 371                 super::do_test(&<Vec<u8>>::from_hex(two_unblinded_two_blinded_om).unwrap(), &logger);
 372                 {
 373                         let log_entries = logger.lines.lock().unwrap();
 374                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(), "Forwarding an onion message to peer 020202020202020202020202020202020202020202020202020202020202020202".to_string())), Some(&1));
 375                 }
 376
 377                 let three_blinded_om = "\
 378                         020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000\
 379                         000000000000000000000000000000000000000000000000e01350433042102020202020202020202020202\
 380                         02020202020202020202020202020202020202026d000000000000000000000000000000b20000000000000\
 381                         000000000000000000000000000000000000000000000000035043304210203030303030303030303030303\
 382                         030303030303030303030303030303030303029600000000000000000000000000000033000000000000000\
 383                         000000000000000000000000000000000000000000000003604104e000000000000000000000000000000fd\
 384                         1092202a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a00000000000000000\
 385                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 386                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 387                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 388                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 389                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 390                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 391                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 392                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 393                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 394                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 395                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 396                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 397                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 398                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 399                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 400                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 401                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 402                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 403                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 404                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 405                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 406                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 407                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 408                         000000000000000000000000000000000000000000000000000000000000000000000000000000000000000\
 409                         000000000000000000000000000000000000000004800000000000000000000000000000000000000000000\
 410                         000000000000000000";
 411                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 412                 super::do_test(&<Vec<u8>>::from_hex(three_blinded_om).unwrap(), &logger);
 413                 {
 414                         let log_entries = logger.lines.lock().unwrap();
 415                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(), "Forwarding an onion message to peer 020202020202020202020202020202020202020202020202020202020202020202".to_string())), Some(&1));
 416                 }
 417         }
 418 }