_ 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 bitcoin::secp256k1::{KeyPair, Parity, 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::invoice_request::InvoiceRequest;
  20 use lightning::offers::parse::Bolt12SemanticError;
  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] { [42; 32] }
  62 }
  63
  64 fn pubkey(byte: u8) -> PublicKey {
  65         let secp_ctx = Secp256k1::new();
  66         PublicKey::from_secret_key(&secp_ctx, &privkey(byte))
  67 }
  68
  69 fn privkey(byte: u8) -> SecretKey {
  70         SecretKey::from_slice(&[byte; 32]).unwrap()
  71 }
  72
  73 fn build_response<T: secp256k1::Signing + secp256k1::Verification>(
  74         invoice_request: &InvoiceRequest, secp_ctx: &Secp256k1<T>
  75 ) -> Result<UnsignedBolt12Invoice, Bolt12SemanticError> {
  76         let entropy_source = Randomness {};
  77         let intermediate_nodes = [
  78                 [
  79                         ForwardNode { node_id: pubkey(43), short_channel_id: None },
  80                         ForwardNode { node_id: pubkey(44), short_channel_id: None },
  81                 ],
  82                 [
  83                         ForwardNode { node_id: pubkey(45), short_channel_id: None },
  84                         ForwardNode { node_id: pubkey(46), short_channel_id: None },
  85                 ],
  86         ];
  87         let paths = vec![
  88                 BlindedPath::new_for_message(&intermediate_nodes[0], pubkey(42), &entropy_source, secp_ctx).unwrap(),
  89                 BlindedPath::new_for_message(&intermediate_nodes[1], pubkey(42), &entropy_source, secp_ctx).unwrap(),
  90         ];
  91
  92         let payinfo = vec![
  93                 BlindedPayInfo {
  94                         fee_base_msat: 1,
  95                         fee_proportional_millionths: 1_000,
  96                         cltv_expiry_delta: 42,
  97                         htlc_minimum_msat: 100,
  98                         htlc_maximum_msat: 1_000_000_000_000,
  99                         features: BlindedHopFeatures::empty(),
 100                 },
 101                 BlindedPayInfo {
 102                         fee_base_msat: 1,
 103                         fee_proportional_millionths: 1_000,
 104                         cltv_expiry_delta: 42,
 105                         htlc_minimum_msat: 100,
 106                         htlc_maximum_msat: 1_000_000_000_000,
 107                         features: BlindedHopFeatures::empty(),
 108                 },
 109         ];
 110
 111         let payment_paths = payinfo.into_iter().zip(paths.into_iter()).collect();
 112         let payment_hash = PaymentHash([42; 32]);
 113         invoice_request.respond_with(payment_paths, payment_hash)?.build()
 114 }
 115
 116 pub fn invoice_request_deser_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 117         do_test(data, out);
 118 }
 119
 120 #[no_mangle]
 121 pub extern "C" fn invoice_request_deser_run(data: *const u8, datalen: usize) {
 122         do_test(unsafe { std::slice::from_raw_parts(data, datalen) }, test_logger::DevNull {});
 123 }