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