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

   1 // This file is Copyright its original authors, visible in version control
   2 // history.
   3 //
   4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
   5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
   7 // You may not use this file except in accordance with one or both of these
   8 // licenses.
   9
  10 use bitcoin::secp256k1::{KeyPair, PublicKey, Secp256k1, SecretKey, self};
  11 use crate::utils::test_logger;
  12 use core::convert::{Infallible, TryFrom};
  13 use lightning::blinded_path::BlindedPath;
  14 use lightning::sign::EntropySource;
  15 use lightning::ln::PaymentHash;
  16 use lightning::ln::features::BlindedHopFeatures;
  17 use lightning::offers::invoice::{BlindedPayInfo, UnsignedBolt12Invoice};
  18 use lightning::offers::parse::SemanticError;
  19 use lightning::offers::refund::Refund;
  20 use lightning::util::ser::Writeable;
  21
  22 #[inline]
  23 pub fn do_test<Out: test_logger::Output>(data: &[u8], _out: Out) {
  24         if let Ok(refund) = Refund::try_from(data.to_vec()) {
  25                 let mut bytes = Vec::with_capacity(data.len());
  26                 refund.write(&mut bytes).unwrap();
  27                 assert_eq!(data, bytes);
  28
  29                 let secp_ctx = Secp256k1::new();
  30                 let keys = KeyPair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
  31                 let pubkey = PublicKey::from(keys);
  32                 let mut buffer = Vec::new();
  33
  34                 if let Ok(invoice) = build_response(&refund, pubkey, &secp_ctx) {
  35                         invoice
  36                                 .sign::<_, Infallible>(
  37                                         |digest| Ok(secp_ctx.sign_schnorr_no_aux_rand(digest, &keys))
  38                                 )
  39                                 .unwrap()
  40                                 .write(&mut buffer)
  41                                 .unwrap();
  42                 }
  43         }
  44 }
  45
  46 struct Randomness;
  47
  48 impl EntropySource for Randomness {
  49         fn get_secure_random_bytes(&self) -> [u8; 32] { [42; 32] }
  50 }
  51
  52 fn pubkey(byte: u8) -> PublicKey {
  53         let secp_ctx = Secp256k1::new();
  54         PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
  55 }
  56
  57 fn privkey(byte: u8) -> SecretKey {
  58         SecretKey::from_slice(&[byte; 32]).unwrap()
  59 }
  60
  61 fn build_response<'a, T: secp256k1::Signing + secp256k1::Verification>(
  62         refund: &'a Refund, signing_pubkey: PublicKey, secp_ctx: &Secp256k1<T>
  63 ) -> Result<UnsignedBolt12Invoice<'a>, SemanticError> {
  64         let entropy_source = Randomness {};
  65         let paths = vec![
  66                 BlindedPath::new_for_message(&[pubkey(43), pubkey(44), pubkey(42)], &entropy_source, secp_ctx).unwrap(),
  67                 BlindedPath::new_for_message(&[pubkey(45), pubkey(46), pubkey(42)], &entropy_source, secp_ctx).unwrap(),
  68         ];
  69
  70         let payinfo = vec![
  71                 BlindedPayInfo {
  72                         fee_base_msat: 1,
  73                         fee_proportional_millionths: 1_000,
  74                         cltv_expiry_delta: 42,
  75                         htlc_minimum_msat: 100,
  76                         htlc_maximum_msat: 1_000_000_000_000,
  77                         features: BlindedHopFeatures::empty(),
  78                 },
  79                 BlindedPayInfo {
  80                         fee_base_msat: 1,
  81                         fee_proportional_millionths: 1_000,
  82                         cltv_expiry_delta: 42,
  83                         htlc_minimum_msat: 100,
  84                         htlc_maximum_msat: 1_000_000_000_000,
  85                         features: BlindedHopFeatures::empty(),
  86                 },
  87         ];
  88
  89         let payment_paths = payinfo.into_iter().zip(paths.into_iter()).collect();
  90         let payment_hash = PaymentHash([42; 32]);
  91         refund.respond_with(payment_paths, payment_hash, signing_pubkey)?.build()
  92 }
  93
  94 pub fn refund_deser_test<Out: test_logger::Output>(data: &[u8], out: Out) {
  95         do_test(data, out);
  96 }
  97
  98 #[no_mangle]
  99 pub extern "C" fn refund_deser_run(data: *const u8, datalen: usize) {
 100         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
 101 }