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

   1 // Imports that need to be added manually
   2 use bitcoin::bech32::u5;
   3 use bitcoin::blockdata::script::Script;
   4 use bitcoin::secp256k1::{PublicKey, Scalar, Secp256k1, SecretKey};
   5 use bitcoin::secp256k1::ecdh::SharedSecret;
   6 use bitcoin::secp256k1::ecdsa::RecoverableSignature;
   7
   8 use lightning::sign::{Recipient, KeyMaterial, EntropySource, NodeSigner, SignerProvider};
   9 use lightning::ln::msgs::{self, DecodeError, OnionMessageHandler};
  10 use lightning::ln::script::ShutdownScript;
  11 use lightning::util::enforcing_trait_impls::EnforcingSigner;
  12 use lightning::util::logger::Logger;
  13 use lightning::util::ser::{Readable, Writeable, Writer};
  14 use lightning::onion_message::{CustomOnionMessageContents, CustomOnionMessageHandler, Destination, MessageRouter, OffersMessage, OffersMessageHandler, OnionMessagePath, OnionMessenger};
  15
  16 use crate::utils::test_logger;
  17
  18 use std::io::{self, Cursor};
  19 use std::sync::atomic::{AtomicU64, Ordering};
  20
  21 #[inline]
  22 /// Actual fuzz test, method signature and name are fixed
  23 pub fn do_test<L: Logger>(data: &[u8], logger: &L) {
  24         if let Ok(msg) = <msgs::OnionMessage as Readable>::read(&mut Cursor::new(data)) {
  25                 let mut secret_bytes = [0; 32];
  26                 secret_bytes[31] = 2;
  27                 let secret = SecretKey::from_slice(&secret_bytes).unwrap();
  28                 let keys_manager = KeyProvider {
  29                         node_secret: secret,
  30                         counter: AtomicU64::new(0),
  31                 };
  32                 let message_router = TestMessageRouter {};
  33                 let offers_msg_handler = TestOffersMessageHandler {};
  34                 let custom_msg_handler = TestCustomMessageHandler {};
  35                 let onion_messenger = OnionMessenger::new(
  36                         &keys_manager, &keys_manager, logger, &message_router, &offers_msg_handler,
  37                         &custom_msg_handler
  38                 );
  39                 let mut pk = [2; 33]; pk[1] = 0xff;
  40                 let peer_node_id_not_used = PublicKey::from_slice(&pk).unwrap();
  41                 onion_messenger.handle_onion_message(&peer_node_id_not_used, &msg);
  42         }
  43 }
  44
  45 /// Method that needs to be added manually, {name}_test
  46 pub fn onion_message_test<Out: test_logger::Output>(data: &[u8], out: Out) {
  47         let logger = test_logger::TestLogger::new("".to_owned(), out);
  48         do_test(data, &logger);
  49 }
  50
  51 /// Method that needs to be added manually, {name}_run
  52 #[no_mangle]
  53 pub extern "C" fn onion_message_run(data: *const u8, datalen: usize) {
  54         let logger = test_logger::TestLogger::new("".to_owned(), test_logger::DevNull {});
  55         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, &logger);
  56 }
  57
  58 struct TestMessageRouter {}
  59
  60 impl MessageRouter for TestMessageRouter {
  61         fn find_path(
  62                 &self, _sender: PublicKey, _peers: Vec<PublicKey>, _destination: Destination
  63         ) -> Result<OnionMessagePath, ()> {
  64                 unreachable!()
  65         }
  66 }
  67
  68 struct TestOffersMessageHandler {}
  69
  70 impl OffersMessageHandler for TestOffersMessageHandler {
  71         fn handle_message(&self, _message: OffersMessage) {}
  72 }
  73
  74 struct TestCustomMessage {}
  75
  76 const CUSTOM_MESSAGE_TYPE: u64 = 4242;
  77 const CUSTOM_MESSAGE_CONTENTS: [u8; 32] = [42; 32];
  78
  79 impl CustomOnionMessageContents for TestCustomMessage {
  80         fn tlv_type(&self) -> u64 {
  81                 CUSTOM_MESSAGE_TYPE
  82         }
  83 }
  84
  85 impl Writeable for TestCustomMessage {
  86         fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
  87                 Ok(CUSTOM_MESSAGE_CONTENTS.write(w)?)
  88         }
  89 }
  90
  91 struct TestCustomMessageHandler {}
  92
  93 impl CustomOnionMessageHandler for TestCustomMessageHandler {
  94         type CustomMessage = TestCustomMessage;
  95         fn handle_custom_message(&self, _msg: Self::CustomMessage) {}
  96         fn read_custom_message<R: io::Read>(&self, _message_type: u64, buffer: &mut R) -> Result<Option<Self::CustomMessage>, msgs::DecodeError> {
  97                 let mut buf = Vec::new();
  98                 buffer.read_to_end(&mut buf)?;
  99                 return Ok(Some(TestCustomMessage {}))
 100         }
 101 }
 102
 103 pub struct VecWriter(pub Vec<u8>);
 104 impl Writer for VecWriter {
 105         fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
 106                 self.0.extend_from_slice(buf);
 107                 Ok(())
 108         }
 109 }
 110 struct KeyProvider {
 111         node_secret: SecretKey,
 112         counter: AtomicU64,
 113 }
 114
 115 impl EntropySource for KeyProvider {
 116         fn get_secure_random_bytes(&self) -> [u8; 32] {
 117                 let ctr = self.counter.fetch_add(1, Ordering::Relaxed);
 118                 [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 119                         (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]
 120         }
 121 }
 122
 123 impl NodeSigner for KeyProvider {
 124         fn get_node_id(&self, recipient: Recipient) -> Result<PublicKey, ()> {
 125                 let node_secret = match recipient {
 126                         Recipient::Node => Ok(&self.node_secret),
 127                         Recipient::PhantomNode => Err(())
 128                 }?;
 129                 Ok(PublicKey::from_secret_key(&Secp256k1::signing_only(), node_secret))
 130         }
 131
 132         fn ecdh(&self, recipient: Recipient, other_key: &PublicKey, tweak: Option<&Scalar>) -> Result<SharedSecret, ()> {
 133                 let mut node_secret = match recipient {
 134                         Recipient::Node => Ok(self.node_secret.clone()),
 135                         Recipient::PhantomNode => Err(())
 136                 }?;
 137                 if let Some(tweak) = tweak {
 138                         node_secret = node_secret.mul_tweak(tweak).map_err(|_| ())?;
 139                 }
 140                 Ok(SharedSecret::new(other_key, &node_secret))
 141         }
 142
 143         fn get_inbound_payment_key_material(&self) -> KeyMaterial { unreachable!() }
 144
 145         fn sign_invoice(&self, _hrp_bytes: &[u8], _invoice_data: &[u5], _recipient: Recipient) -> Result<RecoverableSignature, ()> {
 146                 unreachable!()
 147         }
 148
 149         fn sign_gossip_message(&self, _msg: lightning::ln::msgs::UnsignedGossipMessage) -> Result<bitcoin::secp256k1::ecdsa::Signature, ()> {
 150                 unreachable!()
 151         }
 152 }
 153
 154 impl SignerProvider for KeyProvider {
 155         type Signer = EnforcingSigner;
 156
 157         fn generate_channel_keys_id(&self, _inbound: bool, _channel_value_satoshis: u64, _user_channel_id: u128) -> [u8; 32] { unreachable!() }
 158
 159         fn derive_channel_signer(&self, _channel_value_satoshis: u64, _channel_keys_id: [u8; 32]) -> Self::Signer {
 160                 unreachable!()
 161         }
 162
 163         fn read_chan_signer(&self, _data: &[u8]) -> Result<EnforcingSigner, DecodeError> { unreachable!() }
 164
 165         fn get_destination_script(&self) -> Result<Script, ()> { unreachable!() }
 166
 167         fn get_shutdown_scriptpubkey(&self) -> Result<ShutdownScript, ()> { unreachable!() }
 168 }
 169
 170 #[cfg(test)]
 171 mod tests {
 172         use lightning::util::logger::{Logger, Record};
 173         use std::collections::HashMap;
 174         use std::sync::Mutex;
 175
 176         struct TrackingLogger {
 177                 /// (module, message) -> count
 178                 pub lines: Mutex<HashMap<(String, String), usize>>,
 179         }
 180         impl Logger for TrackingLogger {
 181                 fn log(&self, record: &Record) {
 182                         *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 183                         println!("{:<5} [{} : {}, {}] {}", record.level.to_string(), record.module_path, record.file, record.line, record.args);
 184                 }
 185         }
 186
 187         #[test]
 188         fn test_no_onion_message_breakage() {
 189                 let one_hop_om = "020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000000000000000000000000000000000000000000000000000e0136041095000000000000000000000000000000fd1092202a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e800000000000000000000000000000000000000000000000000000000000000";
 190                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 191                 super::do_test(&::hex::decode(one_hop_om).unwrap(), &logger);
 192                 {
 193                         let log_entries = logger.lines.lock().unwrap();
 194                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(),
 195                                                 "Received an onion message with path_id None and no reply_path".to_string())), Some(&1));
 196                 }
 197
 198                 let two_unblinded_hops_om = "020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000000000000000000000000000000000000000000000000000e0135043304210200000000000000000000000000000000000000000000000000000000000000029500000000000000000000000000000036000000000000000000000000000000000000000000000000000000000000003604104b000000000000000000000000000000fd1092202a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b200000000000000000000000000000000000000000000000000000000000000";
 199                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 200                 super::do_test(&::hex::decode(two_unblinded_hops_om).unwrap(), &logger);
 201                 {
 202                         let log_entries = logger.lines.lock().unwrap();
 203                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(), "Forwarding an onion message to peer 020000000000000000000000000000000000000000000000000000000000000002".to_string())), Some(&1));
 204                 }
 205
 206                 let two_unblinded_two_blinded_om = "020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000000000000000000000000000000000000000000000000000e01350433042102000000000000000000000000000000000000000000000000000000000000000295000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000058045604210200000000000000000000000000000000000000000000000000000000000000020821020000000000000000000000000000000000000000000000000000000000000e014b000000000000000000000000000000b20000000000000000000000000000000000000000000000000000000000000035043304210200000000000000000000000000000000000000000000000000000000000000029500000000000000000000000000000036000000000000000000000000000000000000000000000000000000000000003604104b000000000000000000000000000000fd1092202a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b200000000000000000000000000000000000000000000000000000000000000";
 207                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 208                 super::do_test(&::hex::decode(two_unblinded_two_blinded_om).unwrap(), &logger);
 209                 {
 210                         let log_entries = logger.lines.lock().unwrap();
 211                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(), "Forwarding an onion message to peer 020000000000000000000000000000000000000000000000000000000000000002".to_string())), Some(&1));
 212                 }
 213
 214                 let three_blinded_om = "020000000000000000000000000000000000000000000000000000000000000e01055600020000000000000000000000000000000000000000000000000000000000000e013504330421020000000000000000000000000000000000000000000000000000000000000002950000000000000000000000000000006c0000000000000000000000000000000000000000000000000000000000000035043304210200000000000000000000000000000000000000000000000000000000000000024b000000000000000000000000000000ac00000000000000000000000000000000000000000000000000000000000000360410d1000000000000000000000000000000fd1092202a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a2a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b200000000000000000000000000000000000000000000000000000000000000";
 215                 let logger = TrackingLogger { lines: Mutex::new(HashMap::new()) };
 216                 super::do_test(&::hex::decode(three_blinded_om).unwrap(), &logger);
 217                 {
 218                         let log_entries = logger.lines.lock().unwrap();
 219                         assert_eq!(log_entries.get(&("lightning::onion_message::messenger".to_string(), "Forwarding an onion message to peer 020000000000000000000000000000000000000000000000000000000000000002".to_string())), Some(&1));
 220                 }
 221         }
 222 }