_ Git - rust-lightning/blob - fuzz/src/invoice_request_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, Parity, 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::invoice_request::InvoiceRequest;
  19 use lightning::offers::parse::Bolt12SemanticError;
  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(invoice_request) = InvoiceRequest::try_from(data.to_vec()) {
  26                 let mut bytes = Vec::with_capacity(data.len());
  27                 invoice_request.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 mut buffer = Vec::new();
  33
  34                 if let Ok(unsigned_invoice) = build_response(&invoice_request, &secp_ctx) {
  35                         let signing_pubkey = unsigned_invoice.signing_pubkey();
  36                         let (x_only_pubkey, _) = keys.x_only_public_key();
  37                         let odd_pubkey = x_only_pubkey.public_key(Parity::Odd);
  38                         let even_pubkey = x_only_pubkey.public_key(Parity::Even);
  39                         if signing_pubkey == odd_pubkey || signing_pubkey == even_pubkey {
  40                                 unsigned_invoice
  41                                         .sign(|message: &UnsignedBolt12Invoice| {
  42                                                 Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
  43                                         })
  44                                         .unwrap()
  45                                         .write(&mut buffer)
  46                                         .unwrap();
  47                         } else {
  48                                 unsigned_invoice
  49                                         .sign(|message: &UnsignedBolt12Invoice| {
  50                                                 Ok(secp_ctx.sign_schnorr_no_aux_rand(message.as_ref().as_digest(), &keys))
  51                                         })
  52                                         .unwrap_err();
  53                         }
  54                 }
  55         }
  56 }
  57
  58 struct Randomness;
  59
  60 impl EntropySource for Randomness {
  61         fn get_secure_random_bytes(&self) -> [u8; 32] {
  62                 [42; 32]
  63         }
  64 }
  65
  66 fn pubkey(byte: u8) -> PublicKey {
  67         let secp_ctx = Secp256k1::new();
  68         PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
  69 }
  70
  71 fn privkey(byte: u8) -> SecretKey {
  72         SecretKey::from_slice(&[byte; 32]).unwrap()
  73 }
  74
  75 fn build_response<T: secp256k1::Signing + secp256k1::Verification>(
  76         invoice_request: &InvoiceRequest, secp_ctx: &Secp256k1<T>,
  77 ) -> Result<UnsignedBolt12Invoice, Bolt12SemanticError> {
  78         let entropy_source = Randomness {};
  79         let intermediate_nodes = [
  80                 [
  81                         ForwardNode { node_id: pubkey(43), short_channel_id: None },
  82                         ForwardNode { node_id: pubkey(44), short_channel_id: None },
  83                 ],
  84                 [
  85                         ForwardNode { node_id: pubkey(45), short_channel_id: None },
  86                         ForwardNode { node_id: pubkey(46), short_channel_id: None },
  87                 ],
  88         ];
  89         let paths = vec![
  90                 BlindedPath::new_for_message(&intermediate_nodes[0], pubkey(42), &entropy_source, secp_ctx)
  91                         .unwrap(),
  92                 BlindedPath::new_for_message(&intermediate_nodes[1], pubkey(42), &entropy_source, secp_ctx)
  93                         .unwrap(),
  94         ];
  95
  96         let payinfo = vec![
  97                 BlindedPayInfo {
  98                         fee_base_msat: 1,
  99                         fee_proportional_millionths: 1_000,
 100                         cltv_expiry_delta: 42,
 101                         htlc_minimum_msat: 100,
 102                         htlc_maximum_msat: 1_000_000_000_000,
 103                         features: BlindedHopFeatures::empty(),
 104                 },
 105                 BlindedPayInfo {
 106                         fee_base_msat: 1,
 107                         fee_proportional_millionths: 1_000,
 108                         cltv_expiry_delta: 42,
 109                         htlc_minimum_msat: 100,
 110                         htlc_maximum_msat: 1_000_000_000_000,
 111                         features: BlindedHopFeatures::empty(),
 112                 },
 113         ];
 114
 115         let payment_paths = payinfo.into_iter().zip(paths.into_iter()).collect();
 116         let payment_hash = PaymentHash([42; 32]);
 117         invoice_request.respond_with(payment_paths, payment_hash)?.build()
 118 }
 119
 120 pub fn invoice_request_deser_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 121         do_test(data, out);
 122 }
 123
 124 #[no_mangle]
 125 pub extern "C" fn invoice_request_deser_run(data: *const u8, datalen: usize) {
 126         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
 127 }