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