Merge pull request #2305 from valentinewallace/2023-05-respect-hint-maxhtlc
[rust-lightning] / lightning / src / ln / functional_tests.rs
index ce61eb5885e8f54a213119c6b128974aeebdcd5d..17a105e35267fb71aed377245ed9e6d1f59ce0e7 100644 (file)
@@ -22,7 +22,7 @@ use crate::events::{Event, MessageSendEvent, MessageSendEventsProvider, PathFail
 use crate::ln::{PaymentPreimage, PaymentSecret, PaymentHash};
 use crate::ln::channel::{commitment_tx_base_weight, COMMITMENT_TX_WEIGHT_PER_HTLC, CONCURRENT_INBOUND_HTLC_FEE_BUFFER, FEE_SPIKE_BUFFER_FEE_INCREASE_MULTIPLE, MIN_AFFORDABLE_HTLC_COUNT};
 use crate::ln::channelmanager::{self, PaymentId, RAACommitmentOrder, PaymentSendFailure, RecipientOnionFields, BREAKDOWN_TIMEOUT, ENABLE_GOSSIP_TICKS, DISABLE_GOSSIP_TICKS, MIN_CLTV_EXPIRY_DELTA};
-use crate::ln::channel::{Channel, ChannelError};
+use crate::ln::channel::{DISCONNECT_PEER_AWAITING_RESPONSE_TICKS, Channel, ChannelError};
 use crate::ln::{chan_utils, onion_utils};
 use crate::ln::chan_utils::{OFFERED_HTLC_SCRIPT_WEIGHT, htlc_success_tx_weight, htlc_timeout_tx_weight, HTLCOutputInCommitment};
 use crate::routing::gossip::{NetworkGraph, NetworkUpdate};
@@ -1379,7 +1379,7 @@ fn test_fee_spike_violation_fails_htlc() {
        let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
        let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0],
                3460001, RecipientOnionFields::secret_only(payment_secret), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
        let msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
                htlc_id: 0,
@@ -1567,7 +1567,7 @@ fn test_chan_reserve_violation_inbound_htlc_outbound_channel() {
        let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
        let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(&route.paths[0],
                700_000, RecipientOnionFields::secret_only(payment_secret), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
        let msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
                htlc_id: MIN_AFFORDABLE_HTLC_COUNT as u64,
@@ -1741,7 +1741,7 @@ fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
        let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route_2.paths[0], &session_priv).unwrap();
        let (onion_payloads, htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(
                &route_2.paths[0], recv_value_2, RecipientOnionFields::spontaneous_empty(), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash_1);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash_1).unwrap();
        let msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
                htlc_id: 1,
@@ -3392,7 +3392,7 @@ fn fail_backward_pending_htlc_upon_channel_failure() {
                let (onion_payloads, _amount_msat, cltv_expiry) = onion_utils::build_onion_payloads(
                        &route.paths[0], 50_000, RecipientOnionFields::secret_only(payment_secret), current_height, &None).unwrap();
                let onion_keys = onion_utils::construct_onion_keys(&secp_ctx, &route.paths[0], &session_priv).unwrap();
-               let onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash);
+               let onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
 
                // Send a 0-msat update_add_htlc to fail the channel.
                let update_add_htlc = msgs::UpdateAddHTLC {
@@ -4025,10 +4025,14 @@ fn test_drop_messages_peer_disconnect_dual_htlc() {
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
 
-       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: nodes[1].node.init_features(), remote_network_address: None }, true).unwrap();
+       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init {
+               features: nodes[1].node.init_features(), networks: None, remote_network_address: None
+       }, true).unwrap();
        let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
        assert_eq!(reestablish_1.len(), 1);
-       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: nodes[0].node.init_features(), remote_network_address: None }, false).unwrap();
+       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
+               features: nodes[0].node.init_features(), networks: None, remote_network_address: None
+       }, false).unwrap();
        let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
        assert_eq!(reestablish_2.len(), 1);
 
@@ -4254,7 +4258,7 @@ macro_rules! check_spendable_outputs {
                                match event {
                                        Event::SpendableOutputs { mut outputs } => {
                                                for outp in outputs.drain(..) {
-                                                       txn.push($keysinterface.backing.spend_spendable_outputs(&[&outp], Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &secp_ctx).unwrap());
+                                                       txn.push($keysinterface.backing.spend_spendable_outputs(&[&outp], Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, None, &secp_ctx).unwrap());
                                                        all_outputs.push(outp);
                                                }
                                        },
@@ -4262,7 +4266,7 @@ macro_rules! check_spendable_outputs {
                                };
                        }
                        if all_outputs.len() > 1 {
-                               if let Ok(tx) = $keysinterface.backing.spend_spendable_outputs(&all_outputs.iter().map(|a| a).collect::<Vec<_>>(), Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &secp_ctx) {
+                               if let Ok(tx) = $keysinterface.backing.spend_spendable_outputs(&all_outputs.iter().map(|a| a).collect::<Vec<_>>(), Vec::new(), Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, None, &secp_ctx) {
                                        txn.push(tx);
                                }
                        }
@@ -6249,7 +6253,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
        let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::signing_only(), &route.paths[0], &session_priv).unwrap();
        let (onion_payloads, _htlc_msat, htlc_cltv) = onion_utils::build_onion_payloads(
                &route.paths[0], 3999999, RecipientOnionFields::secret_only(our_payment_secret), cur_height, &None).unwrap();
-       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash);
+       let onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash).unwrap();
 
        let mut msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
@@ -6343,10 +6347,14 @@ fn test_update_add_htlc_bolt2_receiver_check_repeated_id_ignore() {
        //Disconnect and Reconnect
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
-       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: nodes[1].node.init_features(), remote_network_address: None }, true).unwrap();
+       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init {
+               features: nodes[1].node.init_features(), networks: None, remote_network_address: None
+       }, true).unwrap();
        let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
        assert_eq!(reestablish_1.len(), 1);
-       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: nodes[0].node.init_features(), remote_network_address: None }, false).unwrap();
+       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
+               features: nodes[0].node.init_features(), networks: None, remote_network_address: None
+       }, false).unwrap();
        let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
        assert_eq!(reestablish_2.len(), 1);
        nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_2[0]);
@@ -7026,7 +7034,7 @@ fn test_check_htlc_underpaying() {
        let scorer = test_utils::TestScorer::new();
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
        let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV).with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
-       let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None, 10_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+       let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None, 10_000, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
        let (_, our_payment_hash, _) = get_payment_preimage_hash!(nodes[0]);
        let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(our_payment_hash, Some(100_000), 7200, None).unwrap();
        nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -7109,10 +7117,14 @@ fn test_announce_disable_channels() {
                }
        }
        // Reconnect peers
-       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init { features: nodes[1].node.init_features(), remote_network_address: None }, true).unwrap();
+       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &msgs::Init {
+               features: nodes[1].node.init_features(), networks: None, remote_network_address: None
+       }, true).unwrap();
        let reestablish_1 = get_chan_reestablish_msgs!(nodes[0], nodes[1]);
        assert_eq!(reestablish_1.len(), 3);
-       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: nodes[0].node.init_features(), remote_network_address: None }, false).unwrap();
+       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
+               features: nodes[0].node.init_features(), networks: None, remote_network_address: None
+       }, false).unwrap();
        let reestablish_2 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
        assert_eq!(reestablish_2.len(), 3);
 
@@ -7279,11 +7291,11 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
        let scorer = test_utils::TestScorer::new();
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
        let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None,
-               3_000_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+               3_000_000, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
        let payment_preimage = send_along_route(&nodes[0], route, &[&nodes[1]], 3_000_000).0;
        let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 50).with_bolt11_features(nodes[0].node.invoice_features()).unwrap();
        let route = get_route(&nodes[1].node.get_our_node_id(), &payment_params, &nodes[1].network_graph.read_only(), None,
-               3_000_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+               3_000_000, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
        send_along_route(&nodes[1], route, &[&nodes[0]], 3_000_000);
 
        let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan.2);
@@ -8065,7 +8077,7 @@ fn test_onion_value_mpp_set_calculation() {
                        // Edit amt_to_forward to simulate the sender having set
                        // the final amount and the routing node taking less fee
                        onion_payloads[1].amt_to_forward = 99_000;
-                       let new_onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash);
+                       let new_onion_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &our_payment_hash).unwrap();
                        payment_event.msgs[0].onion_routing_packet = new_onion_packet;
                }
 
@@ -9483,7 +9495,7 @@ fn test_keysend_payments_to_public_node() {
        };
        let scorer = test_utils::TestScorer::new();
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
-       let route = find_route(&payer_pubkey, &route_params, &network_graph, None, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
+       let route = find_route(&payer_pubkey, &route_params, &network_graph, None, nodes[0].logger, &scorer, &(), &random_seed_bytes).unwrap();
 
        let test_preimage = PaymentPreimage([42; 32]);
        let payment_hash = nodes[0].node.send_spontaneous_payment(&route, Some(test_preimage),
@@ -9518,7 +9530,7 @@ fn test_keysend_payments_to_private_node() {
        let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
        let route = find_route(
                &payer_pubkey, &route_params, &network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
-               nodes[0].logger, &scorer, &random_seed_bytes
+               nodes[0].logger, &scorer, &(), &random_seed_bytes
        ).unwrap();
 
        let test_preimage = PaymentPreimage([42; 32]);
@@ -9955,3 +9967,132 @@ fn test_payment_with_custom_min_cltv_expiry_delta() {
        do_payment_with_custom_min_final_cltv_expiry(true, false);
        do_payment_with_custom_min_final_cltv_expiry(true, true);
 }
+
+#[test]
+fn test_disconnects_peer_awaiting_response_ticks() {
+       // Tests that nodes which are awaiting on a response critical for channel responsiveness
+       // disconnect their counterparty after `DISCONNECT_PEER_AWAITING_RESPONSE_TICKS`.
+       let mut chanmon_cfgs = create_chanmon_cfgs(2);
+       let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       // Asserts a disconnect event is queued to the user.
+       let check_disconnect_event = |node: &Node, should_disconnect: bool| {
+               let disconnect_event = node.node.get_and_clear_pending_msg_events().iter().find_map(|event|
+                       if let MessageSendEvent::HandleError { action, .. } = event {
+                               if let msgs::ErrorAction::DisconnectPeerWithWarning { .. } = action {
+                                       Some(())
+                               } else {
+                                       None
+                               }
+                       } else {
+                               None
+                       }
+               );
+               assert_eq!(disconnect_event.is_some(), should_disconnect);
+       };
+
+       // Fires timer ticks ensuring we only attempt to disconnect peers after reaching
+       // `DISCONNECT_PEER_AWAITING_RESPONSE_TICKS`.
+       let check_disconnect = |node: &Node| {
+               // No disconnect without any timer ticks.
+               check_disconnect_event(node, false);
+
+               // No disconnect with 1 timer tick less than required.
+               for _ in 0..DISCONNECT_PEER_AWAITING_RESPONSE_TICKS - 1 {
+                       node.node.timer_tick_occurred();
+                       check_disconnect_event(node, false);
+               }
+
+               // Disconnect after reaching the required ticks.
+               node.node.timer_tick_occurred();
+               check_disconnect_event(node, true);
+
+               // Disconnect again on the next tick if the peer hasn't been disconnected yet.
+               node.node.timer_tick_occurred();
+               check_disconnect_event(node, true);
+       };
+
+       create_chan_between_nodes(&nodes[0], &nodes[1]);
+
+       // We'll start by performing a fee update with Alice (nodes[0]) on the channel.
+       *nodes[0].fee_estimator.sat_per_kw.lock().unwrap() *= 2;
+       nodes[0].node.timer_tick_occurred();
+       check_added_monitors!(&nodes[0], 1);
+       let alice_fee_update = get_htlc_update_msgs(&nodes[0], &nodes[1].node.get_our_node_id());
+       nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), alice_fee_update.update_fee.as_ref().unwrap());
+       nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &alice_fee_update.commitment_signed);
+       check_added_monitors!(&nodes[1], 1);
+
+       // This will prompt Bob (nodes[1]) to respond with his `CommitmentSigned` and `RevokeAndACK`.
+       let (bob_revoke_and_ack, bob_commitment_signed) = get_revoke_commit_msgs!(&nodes[1], nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bob_revoke_and_ack);
+       check_added_monitors!(&nodes[0], 1);
+       nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bob_commitment_signed);
+       check_added_monitors(&nodes[0], 1);
+
+       // Alice then needs to send her final `RevokeAndACK` to complete the commitment dance. We
+       // pretend Bob hasn't received the message and check whether he'll disconnect Alice after
+       // reaching `DISCONNECT_PEER_AWAITING_RESPONSE_TICKS`.
+       let alice_revoke_and_ack = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
+       check_disconnect(&nodes[1]);
+
+       // Now, we'll reconnect them to test awaiting a `ChannelReestablish` message.
+       //
+       // Note that since the commitment dance didn't complete above, Alice is expected to resend her
+       // final `RevokeAndACK` to Bob to complete it.
+       nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
+       nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+       let bob_init = msgs::Init {
+               features: nodes[1].node.init_features(), networks: None, remote_network_address: None
+       };
+       nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id(), &bob_init, true).unwrap();
+       let alice_init = msgs::Init {
+               features: nodes[0].node.init_features(), networks: None, remote_network_address: None
+       };
+       nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id(), &alice_init, true).unwrap();
+
+       // Upon reconnection, Alice sends her `ChannelReestablish` to Bob. Alice, however, hasn't
+       // received Bob's yet, so she should disconnect him after reaching
+       // `DISCONNECT_PEER_AWAITING_RESPONSE_TICKS`.
+       let alice_channel_reestablish = get_event_msg!(
+               nodes[0], MessageSendEvent::SendChannelReestablish, nodes[1].node.get_our_node_id()
+       );
+       nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &alice_channel_reestablish);
+       check_disconnect(&nodes[0]);
+
+       // Bob now sends his `ChannelReestablish` to Alice to resume the channel and consider it "live".
+       let bob_channel_reestablish = nodes[1].node.get_and_clear_pending_msg_events().iter().find_map(|event|
+               if let MessageSendEvent::SendChannelReestablish { node_id, msg } = event {
+                       assert_eq!(*node_id, nodes[0].node.get_our_node_id());
+                       Some(msg.clone())
+               } else {
+                       None
+               }
+       ).unwrap();
+       nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bob_channel_reestablish);
+
+       // Sanity check that Alice won't disconnect Bob since she's no longer waiting for any messages.
+       for _ in 0..DISCONNECT_PEER_AWAITING_RESPONSE_TICKS {
+               nodes[0].node.timer_tick_occurred();
+               check_disconnect_event(&nodes[0], false);
+       }
+
+       // However, Bob is still waiting on Alice's `RevokeAndACK`, so he should disconnect her after
+       // reaching `DISCONNECT_PEER_AWAITING_RESPONSE_TICKS`.
+       check_disconnect(&nodes[1]);
+
+       // Finally, have Bob process the last message.
+       nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &alice_revoke_and_ack);
+       check_added_monitors(&nodes[1], 1);
+
+       // At this point, neither node should attempt to disconnect each other, since they aren't
+       // waiting on any messages.
+       for node in &nodes {
+               for _ in 0..DISCONNECT_PEER_AWAITING_RESPONSE_TICKS {
+                       node.node.timer_tick_occurred();
+                       check_disconnect_event(node, false);
+               }
+       }
+}