_ 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 crate::utils::test_logger;
  11 use bitcoin::secp256k1::{self, Keypair, PublicKey, Secp256k1, SecretKey};
  12 use core::convert::TryFrom;
  13 use lightning::blinded_path::message::ForwardNode;
  14 use lightning::blinded_path::BlindedPath;
  15 use lightning::ln::features::BlindedHopFeatures;
  16 use lightning::ln::PaymentHash;
  17 use lightning::offers::invoice::{BlindedPayInfo, UnsignedBolt12Invoice};
  18 use lightning::offers::parse::Bolt12SemanticError;
  19 use lightning::offers::refund::Refund;
  20 use lightning::sign::EntropySource;
  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] {
  51                 [42; 32]
  52         }
  53 }
  54
  55 fn pubkey(byte: u8) -> PublicKey {
  56         let secp_ctx = Secp256k1::new();
  57         PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
  58 }
  59
  60 fn privkey(byte: u8) -> SecretKey {
  61         SecretKey::from_slice(&[byte; 32]).unwrap()
  62 }
  63
  64 fn build_response<T: secp256k1::Signing + secp256k1::Verification>(
  65         refund: &Refund, signing_pubkey: PublicKey, secp_ctx: &Secp256k1<T>,
  66 ) -> Result<UnsignedBolt12Invoice, Bolt12SemanticError> {
  67         let entropy_source = Randomness {};
  68         let intermediate_nodes = [
  69                 [
  70                         ForwardNode { node_id: pubkey(43), short_channel_id: None },
  71                         ForwardNode { node_id: pubkey(44), short_channel_id: None },
  72                 ],
  73                 [
  74                         ForwardNode { node_id: pubkey(45), short_channel_id: None },
  75                         ForwardNode { node_id: pubkey(46), short_channel_id: None },
  76                 ],
  77         ];
  78         let paths = vec![
  79                 BlindedPath::new_for_message(&intermediate_nodes[0], pubkey(42), &entropy_source, secp_ctx)
  80                         .unwrap(),
  81                 BlindedPath::new_for_message(&intermediate_nodes[1], pubkey(42), &entropy_source, secp_ctx)
  82                         .unwrap(),
  83         ];
  84
  85         let payinfo = vec![
  86                 BlindedPayInfo {
  87                         fee_base_msat: 1,
  88                         fee_proportional_millionths: 1_000,
  89                         cltv_expiry_delta: 42,
  90                         htlc_minimum_msat: 100,
  91                         htlc_maximum_msat: 1_000_000_000_000,
  92                         features: BlindedHopFeatures::empty(),
  93                 },
  94                 BlindedPayInfo {
  95                         fee_base_msat: 1,
  96                         fee_proportional_millionths: 1_000,
  97                         cltv_expiry_delta: 42,
  98                         htlc_minimum_msat: 100,
  99                         htlc_maximum_msat: 1_000_000_000_000,
 100                         features: BlindedHopFeatures::empty(),
 101                 },
 102         ];
 103
 104         let payment_paths = payinfo.into_iter().zip(paths.into_iter()).collect();
 105         let payment_hash = PaymentHash([42; 32]);
 106         refund.respond_with(payment_paths, payment_hash, signing_pubkey)?.build()
 107 }
 108
 109 pub fn refund_deser_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 110         do_test(data, out);
 111 }
 112
 113 #[no_mangle]
 114 pub extern "C" fn refund_deser_run(data: *const u8, datalen: usize) {
 115         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
 116 }