Add handle unkown peer test

Author: ViktorT-11

lightning/src/ln/channelmanager.rs

@@ -7363,6 +7363,12 @@ impl<'a, Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref>
 mod tests {
 	use bitcoin::hashes::Hash;
 	use bitcoin::hashes::sha256::Hash as Sha256;
+	use bitcoin::hashes::hex::FromHex;
+	use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
+	use bitcoin::secp256k1::ecdsa::Signature;
+	use bitcoin::secp256k1::ffi::Signature as FFISignature;
+	use bitcoin::blockdata::script::Script;
+	use bitcoin::Txid;
 	use core::time::Duration;
 	use core::sync::atomic::Ordering;
 	use ln::{PaymentPreimage, PaymentHash, PaymentSecret};
@@ -7371,7 +7377,7 @@ mod tests {
 	use ln::features::InitFeatures;
 	use ln::functional_test_utils::*;
 	use ln::msgs;
-	use ln::msgs::ChannelMessageHandler;
+	use ln::msgs::{ChannelMessageHandler, OptionalField};
 	use routing::router::{PaymentParameters, RouteParameters, find_route};
 	use util::errors::APIError;
 	use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
@@ -7980,6 +7986,209 @@ mod tests {
 		nodes[0].node.get_and_clear_pending_events();
 		nodes[1].node.get_and_clear_pending_events();
 	}
+
+	fn check_unkown_peer_msg_event<'a, 'b: 'a, 'c: 'b>(node: &Node<'a, 'b, 'c>, closing_node_id: PublicKey, closed_channel_id: [u8; 32]){
+		let close_msg_ev = node.node.get_and_clear_pending_msg_events();
+		let expected_error_str = format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", closing_node_id);
+		match close_msg_ev[0] {
+			MessageSendEvent::HandleError {
+				ref node_id, action: msgs::ErrorAction::SendErrorMessage {
+					msg: msgs::ErrorMessage { ref channel_id, ref data }
+				}
+			} => {
+				assert_eq!(*node_id, closing_node_id);
+				assert_eq!(*data, expected_error_str);
+				assert_eq!(*channel_id, closed_channel_id);
+			}
+			_ => panic!("Unexpected event"),
+		}
+	}
+
+	fn check_unkown_peer_error<T>(res_err: Result<T, APIError>, expected_public_key: PublicKey) {
+		match res_err {
+			Err(APIError::APIMisuseError { err }) => {
+				assert_eq!(err, format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", expected_public_key));
+			},
+			Ok(_) => panic!("Unexpected Ok"),
+			Err(_) => panic!("Unexpected Error"),
+		}
+	}
+
+	#[test]
+	fn test_api_calls_with_unkown_counterparty_node() {
+		// Tests that our API functions and message handlers that expects a `counterparty_node_id`
+		// as input, behaves as expected if the `counterparty_node_id` is an unkown peer in the
+		// `ChannelManager::per_peer_state` map.
+		let chanmon_cfg = create_chanmon_cfgs(2);
+		let node_cfg = create_node_cfgs(2, &chanmon_cfg);
+		let node_chanmgr = create_node_chanmgrs(2, &node_cfg, &[None, None]);
+		let nodes = create_network(2, &node_cfg, &node_chanmgr);
+
+		// Boilerplate code to produce `open_channel` and `accept_channel` msgs more densly than
+		// creating dummy ones.
+		nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
+		let open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+		nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &open_channel_msg);
+		let accept_channel_msg = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+
+		// Dummy values
+		let channel_id = [4; 32];
+		let signature = Signature::from(unsafe { FFISignature::new() });
+		let unkown_public_key = PublicKey::from_secret_key(&Secp256k1::signing_only(), &SecretKey::from_slice(&[42; 32]).unwrap());
+
+		// Dummy msgs
+		let funding_created_msg = msgs::FundingCreated {
+			temporary_channel_id: open_channel_msg.temporary_channel_id,
+			funding_txid: Txid::from_hex("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff").unwrap(),
+			funding_output_index: 0,
+			signature: signature,
+		};
+
+		let funding_signed_msg = msgs::FundingSigned {
+			channel_id: channel_id,
+			signature: signature,
+		};
+
+		let channel_ready_msg = msgs::ChannelReady {
+			channel_id: channel_id,
+			next_per_commitment_point: unkown_public_key,
+			short_channel_id_alias: None,
+		};
+
+		let announcement_signatures_msg = msgs::AnnouncementSignatures {
+			channel_id: channel_id,
+			short_channel_id: 0,
+			node_signature: signature,
+			bitcoin_signature: signature,
+		};
+
+		let channel_reestablish_msg = msgs::ChannelReestablish {
+			channel_id: channel_id,
+			next_local_commitment_number: 0,
+			next_remote_commitment_number: 0,
+			data_loss_protect: OptionalField::Absent,
+		};
+
+		let closing_signed_msg = msgs::ClosingSigned {
+			channel_id: channel_id,
+			fee_satoshis: 1000,
+			signature: signature,
+			fee_range: None,
+		};
+
+		let shutdown_msg = msgs::Shutdown {
+			channel_id: channel_id,
+			scriptpubkey: Script::new(),
+		};
+
+		let onion_routing_packet = msgs::OnionPacket {
+			version: 255,
+			public_key: Ok(unkown_public_key),
+			hop_data: [1; 20*65],
+			hmac: [2; 32]
+		};
+
+		let update_add_htlc_msg = msgs::UpdateAddHTLC {
+			channel_id: channel_id,
+			htlc_id: 0,
+			amount_msat: 1000000,
+			payment_hash: PaymentHash([1; 32]),
+			cltv_expiry: 821716,
+			onion_routing_packet
+		};
+
+		let commitment_signed_msg = msgs::CommitmentSigned {
+			channel_id: channel_id,
+			signature: signature,
+			htlc_signatures: Vec::new(),
+		};
+
+		let update_fee_msg = msgs::UpdateFee {
+			channel_id: channel_id,
+			feerate_per_kw: 1000,
+		};
+
+		let malformed_update_msg = msgs::UpdateFailMalformedHTLC{
+			channel_id: channel_id,
+			htlc_id: 0,
+			sha256_of_onion: [1; 32],
+			failure_code: 0x8000,
+		};
+
+		let fulfill_update_msg = msgs::UpdateFulfillHTLC{
+			channel_id: channel_id,
+			htlc_id: 0,
+			payment_preimage: PaymentPreimage([1; 32]),
+		};
+
+		let fail_update_msg = msgs::UpdateFailHTLC{
+			channel_id: channel_id,
+			htlc_id: 0,
+			reason: msgs::OnionErrorPacket { data: Vec::new()},
+		};
+
+		let revoke_and_ack_msg = msgs::RevokeAndACK {
+			channel_id: channel_id,
+			per_commitment_secret: [1; 32],
+			next_per_commitment_point: unkown_public_key,
+		};
+
+		// Test the API functions and message handlers.
+		check_unkown_peer_error(nodes[0].node.create_channel(unkown_public_key, 1_000_000, 500_000_000, 42, None), unkown_public_key);
+
+		nodes[1].node.handle_open_channel(&unkown_public_key, InitFeatures::known(), &open_channel_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, open_channel_msg.temporary_channel_id);
+
+		nodes[0].node.handle_accept_channel(&unkown_public_key, InitFeatures::known(), &accept_channel_msg);
+		check_unkown_peer_msg_event(&nodes[0], unkown_public_key, open_channel_msg.temporary_channel_id);
+
+		check_unkown_peer_error(nodes[0].node.accept_inbound_channel(&open_channel_msg.temporary_channel_id, &unkown_public_key, 42), unkown_public_key);
+		nodes[1].node.handle_funding_created(&unkown_public_key, &funding_created_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, open_channel_msg.temporary_channel_id);
+
+		nodes[0].node.handle_funding_signed(&unkown_public_key, &funding_signed_msg);
+		check_unkown_peer_msg_event(&nodes[0], unkown_public_key, channel_id);
+
+		nodes[0].node.handle_channel_ready(&unkown_public_key, &channel_ready_msg);
+		check_unkown_peer_msg_event(&nodes[0], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_announcement_signatures(&unkown_public_key, &announcement_signatures_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		check_unkown_peer_error(nodes[0].node.close_channel(&channel_id, &unkown_public_key), unkown_public_key);
+
+		check_unkown_peer_error(nodes[0].node.force_close_channel(&channel_id, &unkown_public_key), unkown_public_key);
+
+		nodes[0].node.handle_shutdown(&unkown_public_key, &InitFeatures::known(), &shutdown_msg);
+		check_unkown_peer_msg_event(&nodes[0], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_closing_signed(&unkown_public_key, &closing_signed_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[0].node.handle_channel_reestablish(&unkown_public_key, &channel_reestablish_msg);
+		check_unkown_peer_msg_event(&nodes[0], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_update_add_htlc(&unkown_public_key, &update_add_htlc_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_commitment_signed(&unkown_public_key, &commitment_signed_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_update_fail_malformed_htlc(&unkown_public_key, &malformed_update_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_update_fail_htlc(&unkown_public_key, &fail_update_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_update_fulfill_htlc(&unkown_public_key, &fulfill_update_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_revoke_and_ack(&unkown_public_key, &revoke_and_ack_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+
+		nodes[1].node.handle_update_fee(&unkown_public_key, &update_fee_msg);
+		check_unkown_peer_msg_event(&nodes[1], unkown_public_key, channel_id);
+	}
 }
 
 #[cfg(all(any(test, feature = "_test_utils"), feature = "_bench_unstable"))]