Pass FinalOnionHopData to payment verify by reference, not clone

Author: TheBlueMatt

lightning/src/ln/channelmanager.rs

@@ -236,7 +236,7 @@ mod inbound_payment {
 	/// [`KeysInterface::get_inbound_payment_key_material`]: crate::chain::keysinterface::KeysInterface::get_inbound_payment_key_material
 	/// [`create_inbound_payment`]: crate::ln::channelmanager::ChannelManager::create_inbound_payment
 	/// [`create_inbound_payment_for_hash`]: crate::ln::channelmanager::ChannelManager::create_inbound_payment_for_hash
-	pub(super) fn verify<L: Deref>(payment_hash: PaymentHash, payment_data: msgs::FinalOnionHopData, highest_seen_timestamp: u64, keys: &ExpandedKey, logger: &L) -> Result<Option<PaymentPreimage>, ()>
+	pub(super) fn verify<L: Deref>(payment_hash: PaymentHash, payment_data: &msgs::FinalOnionHopData, highest_seen_timestamp: u64, keys: &ExpandedKey, logger: &L) -> Result<Option<PaymentPreimage>, ()>
 		where L::Target: Logger
 	{
 		let (iv_bytes, metadata_bytes) = decrypt_metadata(payment_data.payment_secret, keys);
@@ -3270,7 +3270,7 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
 									hash_map::Entry::Vacant(_) => {
 										match claimable_htlc.onion_payload {
 											OnionPayload::Invoice(ref payment_data) => {
-												let payment_preimage = match inbound_payment::verify(payment_hash, payment_data.clone(), self.highest_seen_timestamp.load(Ordering::Acquire) as u64, &self.inbound_payment_key, &self.logger) {
+												let payment_preimage = match inbound_payment::verify(payment_hash, &payment_data, self.highest_seen_timestamp.load(Ordering::Acquire) as u64, &self.inbound_payment_key, &self.logger) {
 													Ok(payment_preimage) => payment_preimage,
 													Err(()) => {
 														fail_htlc!(claimable_htlc);
@@ -7110,15 +7110,15 @@ mod tests {
 		// payment verification fails as expected.
 		let mut bad_payment_hash = payment_hash.clone();
 		bad_payment_hash.0[0] += 1;
-		match inbound_payment::verify(bad_payment_hash, payment_data.clone(), nodes[0].node.highest_seen_timestamp.load(Ordering::Acquire) as u64, &nodes[0].node.inbound_payment_key, &nodes[0].logger) {
+		match inbound_payment::verify(bad_payment_hash, &payment_data, nodes[0].node.highest_seen_timestamp.load(Ordering::Acquire) as u64, &nodes[0].node.inbound_payment_key, &nodes[0].logger) {
 			Ok(_) => panic!("Unexpected ok"),
 			Err(()) => {
 				nodes[0].logger.assert_log_contains("lightning::ln::channelmanager::inbound_payment".to_string(), "Failing HTLC with user-generated payment_hash".to_string(), 1);
 			}
 		}
 
 		// Check that using the original payment hash succeeds.
-		assert!(inbound_payment::verify(payment_hash, payment_data, nodes[0].node.highest_seen_timestamp.load(Ordering::Acquire) as u64, &nodes[0].node.inbound_payment_key, &nodes[0].logger).is_ok());
+		assert!(inbound_payment::verify(payment_hash, &payment_data, nodes[0].node.highest_seen_timestamp.load(Ordering::Acquire) as u64, &nodes[0].node.inbound_payment_key, &nodes[0].logger).is_ok());
 	}
 }