_ 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::TryFrom;
  13 use lightning::blinded_path::BlindedPath;
  14 use lightning::blinded_path::message::ForwardNode;
  15 use lightning::sign::EntropySource;
  16 use lightning::ln::PaymentHash;
  17 use lightning::ln::features::BlindedHopFeatures;
  18 use lightning::offers::invoice::{BlindedPayInfo, UnsignedBolt12Invoice};
  19 use lightning::offers::parse::Bolt12SemanticError;
  20 use lightning::offers::refund::Refund;
  21 use lightning::util::ser::Writeable;
  22
  23 #[inline]
  24 pub fn do_test<Out: test_logger::Output>(data: &[u8], _out: Out) {
  25         if let Ok(refund) = Refund::try_from(data.to_vec()) {
  26                 let mut bytes = Vec::with_capacity(data.len());
  27                 refund.write(&mut bytes).unwrap();
  28                 assert_eq!(data, bytes);
  29
  30                 let secp_ctx = Secp256k1::new();
  31                 let keys = Keypair::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
  32                 let pubkey = PublicKey::from(keys);
  33                 let mut buffer = Vec::new();
  34
  35                 if let Ok(invoice) = build_response(&refund, pubkey, &secp_ctx) {
  36                         invoice
  37                                 .sign(|message: &UnsignedBolt12Invoice|
  38                                         Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
  39                                 )
  40                                 .unwrap()
  41                                 .write(&mut buffer)
  42                                 .unwrap();
  43                 }
  44         }
  45 }
  46
  47 struct Randomness;
  48
  49 impl EntropySource for Randomness {
  50         fn get_secure_random_bytes(&self) -> [u8; 32] { [42; 32] }
  51 }
  52
  53 fn pubkey(byte: u8) -> PublicKey {
  54         let secp_ctx = Secp256k1::new();
  55         PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
  56 }
  57
  58 fn privkey(byte: u8) -> SecretKey {
  59         SecretKey::from_slice(&[byte; 32]).unwrap()
  60 }
  61
  62 fn build_response<T: secp256k1::Signing + secp256k1::Verification>(
  63         refund: &Refund, signing_pubkey: PublicKey, secp_ctx: &Secp256k1<T>
  64 ) -> Result<UnsignedBolt12Invoice, Bolt12SemanticError> {
  65         let entropy_source = Randomness {};
  66         let intermediate_nodes = [
  67                 [
  68                         ForwardNode { node_id: pubkey(43), short_channel_id: None },
  69                         ForwardNode { node_id: pubkey(44), short_channel_id: None },
  70                 ],
  71                 [
  72                         ForwardNode { node_id: pubkey(45), short_channel_id: None },
  73                         ForwardNode { node_id: pubkey(46), short_channel_id: None },
  74                 ],
  75         ];
  76         let paths = vec![
  77                 BlindedPath::new_for_message(&intermediate_nodes[0], pubkey(42), &entropy_source, secp_ctx).unwrap(),
  78                 BlindedPath::new_for_message(&intermediate_nodes[1], pubkey(42), &entropy_source, secp_ctx).unwrap(),
  79         ];
  80
  81         let payinfo = vec![
  82                 BlindedPayInfo {
  83                         fee_base_msat: 1,
  84                         fee_proportional_millionths: 1_000,
  85                         cltv_expiry_delta: 42,
  86                         htlc_minimum_msat: 100,
  87                         htlc_maximum_msat: 1_000_000_000_000,
  88                         features: BlindedHopFeatures::empty(),
  89                 },
  90                 BlindedPayInfo {
  91                         fee_base_msat: 1,
  92                         fee_proportional_millionths: 1_000,
  93                         cltv_expiry_delta: 42,
  94                         htlc_minimum_msat: 100,
  95                         htlc_maximum_msat: 1_000_000_000_000,
  96                         features: BlindedHopFeatures::empty(),
  97                 },
  98         ];
  99
 100         let payment_paths = payinfo.into_iter().zip(paths.into_iter()).collect();
 101         let payment_hash = PaymentHash([42; 32]);
 102         refund.respond_with(payment_paths, payment_hash, signing_pubkey)?.build()
 103 }
 104
 105 pub fn refund_deser_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 106         do_test(data, out);
 107 }
 108
 109 #[no_mangle]
 110 pub extern "C" fn refund_deser_run(data: *const u8, datalen: usize) {
 111         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
 112 }