Merge pull request #1763 from gcomte/feature/derive-eq
[rust-lightning] / lightning / src / ln / onion_route_tests.rs
index 9a07603fafe7e89e90b71a0d943bba59c483a223..76d6723466b52b427d1567526c4a46740928bb5e 100644 (file)
 //! These tests work by standing up full nodes and route payments across the network, checking the
 //! returned errors decode to the correct thing.
 
-use chain::channelmonitor::{CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS};
+use chain::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS};
 use chain::keysinterface::{KeysInterface, Recipient};
 use ln::{PaymentHash, PaymentSecret};
-use ln::channelmanager::{HTLCForwardInfo, CLTV_FAR_FAR_AWAY, MIN_CLTV_EXPIRY_DELTA, PendingHTLCInfo, PendingHTLCRouting};
+use ln::channel::EXPIRE_PREV_CONFIG_TICKS;
+use ln::channelmanager::{self, ChannelManager, ChannelManagerReadArgs, HTLCForwardInfo, CLTV_FAR_FAR_AWAY, MIN_CLTV_EXPIRY_DELTA, PendingHTLCInfo, PendingHTLCRouting};
 use ln::onion_utils;
-use routing::network_graph::{NetworkUpdate, RoutingFees, NodeId};
+use routing::gossip::{NetworkUpdate, RoutingFees, NodeId};
 use routing::router::{get_route, PaymentParameters, Route, RouteHint, RouteHintHop};
 use ln::features::{InitFeatures, InvoiceFeatures, NodeFeatures};
 use ln::msgs;
-use ln::msgs::{ChannelMessageHandler, ChannelUpdate, OptionalField};
+use ln::msgs::{ChannelMessageHandler, ChannelUpdate};
 use ln::wire::Encode;
-use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
-use util::ser::{Writeable, Writer};
+use util::events::{Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider};
+use util::ser::{ReadableArgs, Writeable, Writer};
 use util::{byte_utils, test_utils};
-use util::config::UserConfig;
+use util::config::{UserConfig, ChannelConfig};
+use util::errors::APIError;
 
 use bitcoin::hash_types::BlockHash;
 
@@ -124,7 +126,7 @@ fn run_onion_failure_test_with_fail_intercept<F1,F2,F3>(_name: &str, test_case:
                                expect_htlc_forward!(&nodes[2]);
                                expect_event!(&nodes[2], Event::PaymentReceived);
                                callback_node();
-                               expect_pending_htlcs_forwardable!(nodes[2]);
+                               expect_pending_htlcs_forwardable_and_htlc_handling_failed!(nodes[2], vec![HTLCDestination::FailedPayment { payment_hash: payment_hash.clone() }]);
                        }
 
                        let update_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
@@ -165,8 +167,8 @@ fn run_onion_failure_test_with_fail_intercept<F1,F2,F3>(_name: &str, test_case:
 
        let events = nodes[0].node.get_and_clear_pending_events();
        assert_eq!(events.len(), 1);
-       if let &Event::PaymentPathFailed { ref rejected_by_dest, ref network_update, ref all_paths_failed, ref short_channel_id, ref error_code, .. } = &events[0] {
-               assert_eq!(*rejected_by_dest, !expected_retryable);
+       if let &Event::PaymentPathFailed { ref payment_failed_permanently, ref network_update, ref all_paths_failed, ref short_channel_id, ref error_code, .. } = &events[0] {
+               assert_eq!(*payment_failed_permanently, !expected_retryable);
                assert_eq!(*all_paths_failed, true);
                assert_eq!(*error_code, expected_error_code);
                if expected_channel_update.is_some() {
@@ -177,8 +179,8 @@ fn run_onion_failure_test_with_fail_intercept<F1,F2,F3>(_name: &str, test_case:
                                                        panic!("channel_update not found!");
                                                }
                                        },
-                                       &NetworkUpdate::ChannelClosed { ref short_channel_id, ref is_permanent } => {
-                                               if let NetworkUpdate::ChannelClosed { short_channel_id: ref expected_short_channel_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
+                                       &NetworkUpdate::ChannelFailure { ref short_channel_id, ref is_permanent } => {
+                                               if let NetworkUpdate::ChannelFailure { short_channel_id: ref expected_short_channel_id, is_permanent: ref expected_is_permanent } = expected_channel_update.unwrap() {
                                                        assert!(*short_channel_id == *expected_short_channel_id);
                                                        assert!(*is_permanent == *expected_is_permanent);
                                                } else {
@@ -225,7 +227,7 @@ impl msgs::ChannelUpdate {
                                flags: 0,
                                cltv_expiry_delta: 0,
                                htlc_minimum_msat: 0,
-                               htlc_maximum_msat: OptionalField::Absent,
+                               htlc_maximum_msat: msgs::MAX_VALUE_MSAT,
                                fee_base_msat: 0,
                                fee_proportional_millionths: 0,
                                excess_data: vec![],
@@ -262,13 +264,13 @@ fn test_fee_failures() {
        // When this test was written, the default base fee floated based on the HTLC count.
        // It is now fixed, so we simply set the fee to the expected value here.
        let mut config = test_default_channel_config();
-       config.channel_options.forwarding_fee_base_msat = 196;
+       config.channel_config.forwarding_fee_base_msat = 196;
 
        let chanmon_cfgs = create_chanmon_cfgs(3);
        let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
        let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[Some(config), Some(config), Some(config)]);
        let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
-       let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()), create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known())];
+       let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()), create_announced_chan_between_nodes(&nodes, 1, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features())];
 
        // positive case
        let (route, payment_hash_success, payment_preimage_success, payment_secret_success) = get_route_and_payment_hash!(nodes[0], nodes[2], 40_000);
@@ -283,7 +285,7 @@ fn test_fee_failures() {
        let short_channel_id = channels[0].0.contents.short_channel_id;
        run_onion_failure_test("fee_insufficient", 0, &nodes, &route, &payment_hash, &payment_secret, |msg| {
                msg.amount_msat -= 1;
-       }, || {}, true, Some(UPDATE|12), Some(NetworkUpdate::ChannelClosed { short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, || {}, true, Some(UPDATE|12), Some(NetworkUpdate::ChannelFailure { short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        // In an earlier version, we spuriously failed to forward payments if the expected feerate
        // changed between the channel open and the payment.
@@ -307,20 +309,20 @@ fn test_onion_failure() {
        // This exposed a previous bug because we were using the wrong value all the way down in
        // Channel::get_counterparty_htlc_minimum_msat().
        let mut node_2_cfg: UserConfig = Default::default();
-       node_2_cfg.own_channel_config.our_htlc_minimum_msat = 2000;
-       node_2_cfg.channel_options.announced_channel = true;
-       node_2_cfg.peer_channel_config_limits.force_announced_channel_preference = false;
+       node_2_cfg.channel_handshake_config.our_htlc_minimum_msat = 2000;
+       node_2_cfg.channel_handshake_config.announced_channel = true;
+       node_2_cfg.channel_handshake_limits.force_announced_channel_preference = false;
 
        // When this test was written, the default base fee floated based on the HTLC count.
        // It is now fixed, so we simply set the fee to the expected value here.
        let mut config = test_default_channel_config();
-       config.channel_options.forwarding_fee_base_msat = 196;
+       config.channel_config.forwarding_fee_base_msat = 196;
 
        let chanmon_cfgs = create_chanmon_cfgs(3);
        let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
        let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[Some(config), Some(config), Some(node_2_cfg)]);
        let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
-       let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()), create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known())];
+       let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()), create_announced_chan_between_nodes(&nodes, 1, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features())];
        for node in nodes.iter() {
                *node.keys_manager.override_random_bytes.lock().unwrap() = Some([3; 32]);
        }
@@ -343,7 +345,7 @@ fn test_onion_failure() {
                // describing a length-1 TLV payload, which is obviously bogus.
                new_payloads[0].data[0] = 1;
                msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
-       }, ||{}, true, Some(PERM|22), Some(NetworkUpdate::ChannelClosed{short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, ||{}, true, Some(PERM|22), Some(NetworkUpdate::ChannelFailure{short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        // final node failure
        let short_channel_id = channels[1].0.contents.short_channel_id;
@@ -360,7 +362,7 @@ fn test_onion_failure() {
                // length-1 TLV payload, which is obviously bogus.
                new_payloads[1].data[0] = 1;
                msg.onion_routing_packet = onion_utils::construct_onion_packet_bogus_hopdata(new_payloads, onion_keys, [0; 32], &payment_hash);
-       }, ||{}, false, Some(PERM|22), Some(NetworkUpdate::ChannelClosed{short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, ||{}, false, Some(PERM|22), Some(NetworkUpdate::ChannelFailure{short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        // the following three with run_onion_failure_test_with_fail_intercept() test only the origin node
        // receiving simulated fail messages
@@ -471,7 +473,7 @@ fn test_onion_failure() {
                let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
                msg.reason = onion_utils::build_first_hop_failure_packet(onion_keys[0].shared_secret.as_ref(), PERM|8, &[0;0]);
                // short_channel_id from the processing node
-       }, ||{}, true, Some(PERM|8), Some(NetworkUpdate::ChannelClosed{short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, ||{}, true, Some(PERM|8), Some(NetworkUpdate::ChannelFailure{short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        let short_channel_id = channels[1].0.contents.short_channel_id;
        run_onion_failure_test_with_fail_intercept("required_channel_feature_missing", 100, &nodes, &route, &payment_hash, &payment_secret, |msg| {
@@ -481,13 +483,13 @@ fn test_onion_failure() {
                let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
                msg.reason = onion_utils::build_first_hop_failure_packet(onion_keys[0].shared_secret.as_ref(), PERM|9, &[0;0]);
                // short_channel_id from the processing node
-       }, ||{}, true, Some(PERM|9), Some(NetworkUpdate::ChannelClosed{short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, ||{}, true, Some(PERM|9), Some(NetworkUpdate::ChannelFailure{short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        let mut bogus_route = route.clone();
        bogus_route.paths[0][1].short_channel_id -= 1;
        let short_channel_id = bogus_route.paths[0][1].short_channel_id;
        run_onion_failure_test("unknown_next_peer", 0, &nodes, &bogus_route, &payment_hash, &payment_secret, |_| {}, ||{}, true, Some(PERM|10),
-         Some(NetworkUpdate::ChannelClosed{short_channel_id, is_permanent:true}), Some(short_channel_id));
+         Some(NetworkUpdate::ChannelFailure{short_channel_id, is_permanent:true}), Some(short_channel_id));
 
        let short_channel_id = channels[1].0.contents.short_channel_id;
        let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_counterparty_htlc_minimum_msat() - 1;
@@ -506,18 +508,16 @@ fn test_onion_failure() {
        let preimage = send_along_route(&nodes[0], bogus_route, &[&nodes[1], &nodes[2]], amt_to_forward+1).0;
        claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], preimage);
 
-       //TODO: with new config API, we will be able to generate both valid and
-       //invalid channel_update cases.
        let short_channel_id = channels[0].0.contents.short_channel_id;
        run_onion_failure_test("fee_insufficient", 0, &nodes, &route, &payment_hash, &payment_secret, |msg| {
                msg.amount_msat -= 1;
-       }, || {}, true, Some(UPDATE|12), Some(NetworkUpdate::ChannelClosed { short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, || {}, true, Some(UPDATE|12), Some(NetworkUpdate::ChannelFailure { short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        let short_channel_id = channels[0].0.contents.short_channel_id;
        run_onion_failure_test("incorrect_cltv_expiry", 0, &nodes, &route, &payment_hash, &payment_secret, |msg| {
                // need to violate: cltv_expiry - cltv_expiry_delta >= outgoing_cltv_value
                msg.cltv_expiry -= 1;
-       }, || {}, true, Some(UPDATE|13), Some(NetworkUpdate::ChannelClosed { short_channel_id, is_permanent: true}), Some(short_channel_id));
+       }, || {}, true, Some(UPDATE|13), Some(NetworkUpdate::ChannelFailure { short_channel_id, is_permanent: true}), Some(short_channel_id));
 
        let short_channel_id = channels[1].0.contents.short_channel_id;
        run_onion_failure_test("expiry_too_soon", 0, &nodes, &route, &payment_hash, &payment_secret, |msg| {
@@ -540,7 +540,7 @@ fn test_onion_failure() {
        }, || {}, true, Some(17), None, None);
 
        run_onion_failure_test("final_incorrect_cltv_expiry", 1, &nodes, &route, &payment_hash, &payment_secret, |_| {}, || {
-               for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
+               for (_, pending_forwards) in nodes[1].node.forward_htlcs.lock().unwrap().iter_mut() {
                        for f in pending_forwards.iter_mut() {
                                match f {
                                        &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
@@ -553,7 +553,7 @@ fn test_onion_failure() {
 
        run_onion_failure_test("final_incorrect_htlc_amount", 1, &nodes, &route, &payment_hash, &payment_secret, |_| {}, || {
                // violate amt_to_forward > msg.amount_msat
-               for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
+               for (_, pending_forwards) in nodes[1].node.forward_htlcs.lock().unwrap().iter_mut() {
                        for f in pending_forwards.iter_mut() {
                                match f {
                                        &mut HTLCForwardInfo::AddHTLC { ref mut forward_info, .. } =>
@@ -594,22 +594,218 @@ fn test_onion_failure() {
        }, true, Some(23), None, None);
 }
 
+fn do_test_onion_failure_stale_channel_update(announced_channel: bool) {
+       // Create a network of three nodes and two channels connecting them. We'll be updating the
+       // HTLC relay policy of the second channel, causing forwarding failures at the first hop.
+       let mut config = UserConfig::default();
+       config.channel_handshake_config.announced_channel = announced_channel;
+       config.channel_handshake_limits.force_announced_channel_preference = false;
+       config.accept_forwards_to_priv_channels = !announced_channel;
+       let chanmon_cfgs = create_chanmon_cfgs(3);
+       let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+       let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(config), None]);
+       let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       let other_channel = create_chan_between_nodes(
+               &nodes[0], &nodes[1], channelmanager::provided_init_features(), channelmanager::provided_init_features(),
+       );
+       let channel_to_update = if announced_channel {
+               let channel = create_announced_chan_between_nodes(
+                       &nodes, 1, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features(),
+               );
+               (channel.2, channel.0.contents.short_channel_id)
+       } else {
+               let channel = create_unannounced_chan_between_nodes_with_value(
+                       &nodes, 1, 2, 100000, 10001, channelmanager::provided_init_features(), channelmanager::provided_init_features(),
+               );
+               (channel.0.channel_id, channel.0.short_channel_id_alias.unwrap())
+       };
+       let channel_to_update_counterparty = &nodes[2].node.get_our_node_id();
+
+       let default_config = ChannelConfig::default();
+
+       // A test payment should succeed as the ChannelConfig has not been changed yet.
+       const PAYMENT_AMT: u64 = 40000;
+       let (route, payment_hash, payment_preimage, payment_secret) = if announced_channel {
+               get_route_and_payment_hash!(nodes[0], nodes[2], PAYMENT_AMT)
+       } else {
+               let hop_hints = vec![RouteHint(vec![RouteHintHop {
+                       src_node_id: nodes[1].node.get_our_node_id(),
+                       short_channel_id: channel_to_update.1,
+                       fees: RoutingFees {
+                               base_msat: default_config.forwarding_fee_base_msat,
+                               proportional_millionths: default_config.forwarding_fee_proportional_millionths,
+                       },
+                       cltv_expiry_delta: default_config.cltv_expiry_delta,
+                       htlc_maximum_msat: None,
+                       htlc_minimum_msat: None,
+               }])];
+               let payment_params = PaymentParameters::from_node_id(*channel_to_update_counterparty)
+                       .with_features(channelmanager::provided_invoice_features())
+                       .with_route_hints(hop_hints);
+               get_route_and_payment_hash!(nodes[0], nodes[2], payment_params, PAYMENT_AMT, TEST_FINAL_CLTV)
+       };
+       send_along_route_with_secret(&nodes[0], route.clone(), &[&[&nodes[1], &nodes[2]]], PAYMENT_AMT,
+               payment_hash, payment_secret);
+       claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
+
+       // Closure to force expiry of a channel's previous config.
+       let expire_prev_config = || {
+               for _ in 0..EXPIRE_PREV_CONFIG_TICKS {
+                       nodes[1].node.timer_tick_occurred();
+               }
+       };
+
+       // Closure to update and retrieve the latest ChannelUpdate.
+       let update_and_get_channel_update = |config: &ChannelConfig, expect_new_update: bool,
+               prev_update: Option<&msgs::ChannelUpdate>, should_expire_prev_config: bool| -> Option<msgs::ChannelUpdate> {
+               nodes[1].node.update_channel_config(
+                       channel_to_update_counterparty, &[channel_to_update.0], config,
+               ).unwrap();
+               let events = nodes[1].node.get_and_clear_pending_msg_events();
+               assert_eq!(events.len(), expect_new_update as usize);
+               if !expect_new_update {
+                       return None;
+               }
+               let new_update = match &events[0] {
+                       MessageSendEvent::BroadcastChannelUpdate { msg } => {
+                               assert!(announced_channel);
+                               msg.clone()
+                       },
+                       MessageSendEvent::SendChannelUpdate { node_id, msg } => {
+                               assert_eq!(node_id, channel_to_update_counterparty);
+                               assert!(!announced_channel);
+                               msg.clone()
+                       },
+                       _ => panic!("expected Broadcast/SendChannelUpdate event"),
+               };
+               if prev_update.is_some() {
+                       assert!(new_update.contents.timestamp > prev_update.unwrap().contents.timestamp)
+               }
+               if should_expire_prev_config {
+                       expire_prev_config();
+               }
+               Some(new_update)
+       };
+
+       // We'll be attempting to route payments using the default ChannelUpdate for channels. This will
+       // lead to onion failures at the first hop once we update the ChannelConfig for the
+       // second hop.
+       let expect_onion_failure = |name: &str, error_code: u16, channel_update: &msgs::ChannelUpdate| {
+               let short_channel_id = channel_to_update.1;
+               let network_update = NetworkUpdate::ChannelUpdateMessage { msg: channel_update.clone() };
+               run_onion_failure_test(
+                       name, 0, &nodes, &route, &payment_hash, &payment_secret, |_| {}, || {}, true,
+                       Some(error_code), Some(network_update), Some(short_channel_id),
+               );
+       };
+
+       // Updates to cltv_expiry_delta below MIN_CLTV_EXPIRY_DELTA should fail with APIMisuseError.
+       let mut invalid_config = default_config.clone();
+       invalid_config.cltv_expiry_delta = 0;
+       match nodes[1].node.update_channel_config(
+               channel_to_update_counterparty, &[channel_to_update.0], &invalid_config,
+       ) {
+               Err(APIError::APIMisuseError{ .. }) => {},
+               _ => panic!("unexpected result applying invalid cltv_expiry_delta"),
+       }
+
+       // Increase the base fee which should trigger a new ChannelUpdate.
+       let mut config = nodes[1].node.list_usable_channels().iter()
+               .find(|channel| channel.channel_id == channel_to_update.0).unwrap()
+               .config.unwrap();
+       config.forwarding_fee_base_msat = u32::max_value();
+       let msg = update_and_get_channel_update(&config, true, None, false).unwrap();
+
+       // The old policy should still be in effect until a new block is connected.
+       send_along_route_with_secret(&nodes[0], route.clone(), &[&[&nodes[1], &nodes[2]]], PAYMENT_AMT,
+               payment_hash, payment_secret);
+       claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
+
+       // Connect a block, which should expire the previous config, leading to a failure when
+       // forwarding the HTLC.
+       expire_prev_config();
+       expect_onion_failure("fee_insufficient", UPDATE|12, &msg);
+
+       // Redundant updates should not trigger a new ChannelUpdate.
+       assert!(update_and_get_channel_update(&config, false, None, false).is_none());
+
+       // Similarly, updates that do not have an affect on ChannelUpdate should not trigger a new one.
+       config.force_close_avoidance_max_fee_satoshis *= 2;
+       assert!(update_and_get_channel_update(&config, false, None, false).is_none());
+
+       // Reset the base fee to the default and increase the proportional fee which should trigger a
+       // new ChannelUpdate.
+       config.forwarding_fee_base_msat = default_config.forwarding_fee_base_msat;
+       config.cltv_expiry_delta = u16::max_value();
+       let msg = update_and_get_channel_update(&config, true, Some(&msg), true).unwrap();
+       expect_onion_failure("incorrect_cltv_expiry", UPDATE|13, &msg);
+
+       // Reset the proportional fee and increase the CLTV expiry delta which should trigger a new
+       // ChannelUpdate.
+       config.cltv_expiry_delta = default_config.cltv_expiry_delta;
+       config.forwarding_fee_proportional_millionths = u32::max_value();
+       let msg = update_and_get_channel_update(&config, true, Some(&msg), true).unwrap();
+       expect_onion_failure("fee_insufficient", UPDATE|12, &msg);
+
+       // To test persistence of the updated config, we'll re-initialize the ChannelManager.
+       let config_after_restart = {
+               let persister = test_utils::TestPersister::new();
+               let chain_monitor = test_utils::TestChainMonitor::new(
+                       Some(nodes[1].chain_source), nodes[1].tx_broadcaster.clone(), nodes[1].logger,
+                       node_cfgs[1].fee_estimator, &persister, nodes[1].keys_manager,
+               );
+
+               let mut chanmon_1 = <(_, ChannelMonitor<_>)>::read(
+                       &mut &get_monitor!(nodes[1], other_channel.3).encode()[..], nodes[1].keys_manager,
+               ).unwrap().1;
+               let mut chanmon_2 = <(_, ChannelMonitor<_>)>::read(
+                       &mut &get_monitor!(nodes[1], channel_to_update.0).encode()[..], nodes[1].keys_manager,
+               ).unwrap().1;
+               let mut channel_monitors = HashMap::new();
+               channel_monitors.insert(chanmon_1.get_funding_txo().0, &mut chanmon_1);
+               channel_monitors.insert(chanmon_2.get_funding_txo().0, &mut chanmon_2);
+
+               let chanmgr = <(_, ChannelManager<_, _, _, _, _, _>)>::read(
+                       &mut &nodes[1].node.encode()[..], ChannelManagerReadArgs {
+                               default_config: *nodes[1].node.get_current_default_configuration(),
+                               keys_manager: nodes[1].keys_manager,
+                               fee_estimator: node_cfgs[1].fee_estimator,
+                               chain_monitor: &chain_monitor,
+                               tx_broadcaster: nodes[1].tx_broadcaster.clone(),
+                               logger: nodes[1].logger,
+                               channel_monitors: channel_monitors,
+                       },
+               ).unwrap().1;
+               chanmgr.list_channels().iter()
+                       .find(|channel| channel.channel_id == channel_to_update.0).unwrap()
+                       .config.unwrap()
+       };
+       assert_eq!(config, config_after_restart);
+}
+
+#[test]
+fn test_onion_failure_stale_channel_update() {
+       do_test_onion_failure_stale_channel_update(false);
+       do_test_onion_failure_stale_channel_update(true);
+}
+
 #[test]
 fn test_default_to_onion_payload_tlv_format() {
        // Tests that we default to creating tlv format onion payloads when no `NodeAnnouncementInfo`
        // `features` for a node in the `network_graph` exists, or when the node isn't in the
        // `network_graph`, and no other known `features` for the node exists.
        let mut priv_channels_conf = UserConfig::default();
-       priv_channels_conf.channel_options.announced_channel = false;
+       priv_channels_conf.channel_handshake_config.announced_channel = false;
        let chanmon_cfgs = create_chanmon_cfgs(5);
        let node_cfgs = create_node_cfgs(5, &chanmon_cfgs);
        let node_chanmgrs = create_node_chanmgrs(5, &node_cfgs, &[None, None, None, None, Some(priv_channels_conf)]);
        let mut nodes = create_network(5, &node_cfgs, &node_chanmgrs);
 
-       create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
-       create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
-       create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known());
-       create_unannounced_chan_between_nodes_with_value(&nodes, 3, 4, 100000, 10001, InitFeatures::known(), InitFeatures::known());
+       create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+       create_announced_chan_between_nodes(&nodes, 1, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+       create_announced_chan_between_nodes(&nodes, 2, 3, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+       create_unannounced_chan_between_nodes_with_value(&nodes, 3, 4, 100000, 10001, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id());
        let origin_node = &nodes[0];
@@ -634,7 +830,7 @@ fn test_default_to_onion_payload_tlv_format() {
        // supports variable length onions, as the `InitFeatures` exchanged in the init message
        // between the nodes will be used when creating the route. We therefore do not default to
        // supporting variable length onions for that hop, as the `InitFeatures` in this case are
-       // `InitFeatures::known()`.
+       // `channelmanager::provided_init_features()`.
 
        let unannounced_chan = &nodes[4].node.list_usable_channels()[0];
 
@@ -691,17 +887,19 @@ fn test_do_not_default_to_onion_payload_tlv_format_when_unsupported() {
        let chanmon_cfgs = create_chanmon_cfgs(4);
        let mut node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
 
-       // Set `node[1]` config to `InitFeatures::empty()` which return `false` for
-       // `supports_variable_length_onion()`
+       // Set `node[1]` config to `InitFeatures::empty()` + `static_remote_key` which implies
+       // `!supports_variable_length_onion()` but still supports the required static-remote-key
+       // feature.
        let mut node_1_cfg = &mut node_cfgs[1];
        node_1_cfg.features = InitFeatures::empty();
+       node_1_cfg.features.set_static_remote_key_required();
 
        let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
        let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
 
-       create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
-       create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known());
-       create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known());
+       create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+       create_announced_chan_between_nodes(&nodes, 1, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features());
+       create_announced_chan_between_nodes(&nodes, 2, 3, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id())
                .with_features(InvoiceFeatures::empty());
@@ -763,7 +961,7 @@ macro_rules! get_phantom_route {
                let phantom_pubkey = PublicKey::from_secret_key(&secp_ctx, &phantom_secret);
                let phantom_route_hint = $nodes[1].node.get_phantom_route_hints();
                let payment_params = PaymentParameters::from_node_id(phantom_pubkey)
-                       .with_features(InvoiceFeatures::known())
+                       .with_features(channelmanager::provided_invoice_features())
                        .with_route_hints(vec![RouteHint(vec![
                                        RouteHintHop {
                                                src_node_id: $nodes[0].node.get_our_node_id(),
@@ -805,7 +1003,7 @@ fn test_phantom_onion_hmac_failure() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route.
        let recv_value_msat = 10_000;
@@ -823,8 +1021,8 @@ fn test_phantom_onion_hmac_failure() {
 
        // Modify the payload so the phantom hop's HMAC is bogus.
        let sha256_of_onion = {
-               let mut channel_state = nodes[1].node.channel_state.lock().unwrap();
-               let mut pending_forward = channel_state.forward_htlcs.get_mut(&phantom_scid).unwrap();
+               let mut forward_htlcs = nodes[1].node.forward_htlcs.lock().unwrap();
+               let mut pending_forward = forward_htlcs.get_mut(&phantom_scid).unwrap();
                match pending_forward[0] {
                        HTLCForwardInfo::AddHTLC {
                                forward_info: PendingHTLCInfo {
@@ -840,7 +1038,7 @@ fn test_phantom_onion_hmac_failure() {
        };
        expect_pending_htlcs_forwardable_ignore!(nodes[1]);
        nodes[1].node.process_pending_htlc_forwards();
-       expect_pending_htlcs_forwardable_ignore!(nodes[1]);
+       expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash }]);
        nodes[1].node.process_pending_htlc_forwards();
        let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        check_added_monitors!(&nodes[1], 1);
@@ -854,7 +1052,7 @@ fn test_phantom_onion_hmac_failure() {
                .blamed_scid(phantom_scid)
                .blamed_chan_closed(true)
                .expected_htlc_error_data(0x8000 | 0x4000 | 5, &sha256_of_onion);
-       expect_payment_failed_conditions!(nodes[0], payment_hash, false, fail_conditions);
+       expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
 }
 
 #[test]
@@ -864,7 +1062,7 @@ fn test_phantom_invalid_onion_payload() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route.
        let recv_value_msat = 10_000;
@@ -883,7 +1081,7 @@ fn test_phantom_invalid_onion_payload() {
        commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true);
 
        // Modify the onion packet to have an invalid payment amount.
-       for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
+       for (_, pending_forwards) in nodes[1].node.forward_htlcs.lock().unwrap().iter_mut() {
                for f in pending_forwards.iter_mut() {
                        match f {
                                &mut HTLCForwardInfo::AddHTLC {
@@ -912,7 +1110,7 @@ fn test_phantom_invalid_onion_payload() {
        }
        expect_pending_htlcs_forwardable_ignore!(nodes[1]);
        nodes[1].node.process_pending_htlc_forwards();
-       expect_pending_htlcs_forwardable_ignore!(nodes[1]);
+       expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash }]);
        nodes[1].node.process_pending_htlc_forwards();
        let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        check_added_monitors!(&nodes[1], 1);
@@ -927,7 +1125,7 @@ fn test_phantom_invalid_onion_payload() {
                .blamed_scid(phantom_scid)
                .blamed_chan_closed(true)
                .expected_htlc_error_data(0x4000 | 22, &error_data);
-       expect_payment_failed_conditions!(nodes[0], payment_hash, true, fail_conditions);
+       expect_payment_failed_conditions(&nodes[0], payment_hash, true, fail_conditions);
 }
 
 #[test]
@@ -937,7 +1135,7 @@ fn test_phantom_final_incorrect_cltv_expiry() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route.
        let recv_value_msat = 10_000;
@@ -954,7 +1152,7 @@ fn test_phantom_final_incorrect_cltv_expiry() {
        commitment_signed_dance!(nodes[1], nodes[0], &update_0.commitment_signed, false, true);
 
        // Modify the payload so the phantom hop's HMAC is bogus.
-       for (_, pending_forwards) in nodes[1].node.channel_state.lock().unwrap().forward_htlcs.iter_mut() {
+       for (_, pending_forwards) in nodes[1].node.forward_htlcs.lock().unwrap().iter_mut() {
                for f in pending_forwards.iter_mut() {
                        match f {
                                &mut HTLCForwardInfo::AddHTLC {
@@ -968,7 +1166,7 @@ fn test_phantom_final_incorrect_cltv_expiry() {
        }
        expect_pending_htlcs_forwardable_ignore!(nodes[1]);
        nodes[1].node.process_pending_htlc_forwards();
-       expect_pending_htlcs_forwardable_ignore!(nodes[1]);
+       expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash }]);
        nodes[1].node.process_pending_htlc_forwards();
        let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        check_added_monitors!(&nodes[1], 1);
@@ -983,7 +1181,7 @@ fn test_phantom_final_incorrect_cltv_expiry() {
        let mut fail_conditions = PaymentFailedConditions::new()
                .blamed_scid(phantom_scid)
                .expected_htlc_error_data(18, &error_data);
-       expect_payment_failed_conditions!(nodes[0], payment_hash, false, fail_conditions);
+       expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
 }
 
 #[test]
@@ -993,7 +1191,7 @@ fn test_phantom_failure_too_low_cltv() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route.
        let recv_value_msat = 10_000;
@@ -1014,7 +1212,7 @@ fn test_phantom_failure_too_low_cltv() {
 
        expect_pending_htlcs_forwardable_ignore!(nodes[1]);
        nodes[1].node.process_pending_htlc_forwards();
-       expect_pending_htlcs_forwardable_ignore!(nodes[1]);
+       expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash }]);
        nodes[1].node.process_pending_htlc_forwards();
        let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        check_added_monitors!(&nodes[1], 1);
@@ -1028,7 +1226,7 @@ fn test_phantom_failure_too_low_cltv() {
        let mut fail_conditions = PaymentFailedConditions::new()
                .blamed_scid(phantom_scid)
                .expected_htlc_error_data(17, &error_data);
-       expect_payment_failed_conditions!(nodes[0], payment_hash, false, fail_conditions);
+       expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
 }
 
 #[test]
@@ -1038,7 +1236,7 @@ fn test_phantom_failure_too_low_recv_amt() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route with a too-low amount.
        let recv_amt_msat = 10_000;
@@ -1059,7 +1257,7 @@ fn test_phantom_failure_too_low_recv_amt() {
        nodes[1].node.process_pending_htlc_forwards();
        expect_pending_htlcs_forwardable_ignore!(nodes[1]);
        nodes[1].node.process_pending_htlc_forwards();
-       expect_pending_htlcs_forwardable_ignore!(nodes[1]);
+       expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash: payment_hash.clone() }]);
        nodes[1].node.process_pending_htlc_forwards();
        let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        check_added_monitors!(&nodes[1], 1);
@@ -1076,7 +1274,7 @@ fn test_phantom_failure_too_low_recv_amt() {
        let mut fail_conditions = PaymentFailedConditions::new()
                .blamed_scid(phantom_scid)
                .expected_htlc_error_data(0x4000 | 15, &error_data);
-       expect_payment_failed_conditions!(nodes[0], payment_hash, true, fail_conditions);
+       expect_payment_failed_conditions(&nodes[0], payment_hash, true, fail_conditions);
 }
 
 #[test]
@@ -1084,15 +1282,15 @@ fn test_phantom_dust_exposure_failure() {
        // Set the max dust exposure to the dust limit.
        let max_dust_exposure = 546;
        let mut receiver_config = UserConfig::default();
-       receiver_config.channel_options.max_dust_htlc_exposure_msat = max_dust_exposure;
-       receiver_config.channel_options.announced_channel = true;
+       receiver_config.channel_config.max_dust_htlc_exposure_msat = max_dust_exposure;
+       receiver_config.channel_handshake_config.announced_channel = true;
 
        let 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, Some(receiver_config)]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route with an amount exceeding the dust exposure threshold of nodes[1].
        let (_, payment_hash, payment_secret) = get_payment_preimage_hash!(nodes[1], Some(max_dust_exposure + 1));
@@ -1123,7 +1321,7 @@ fn test_phantom_dust_exposure_failure() {
                .blamed_scid(channel.0.contents.short_channel_id)
                .blamed_chan_closed(false)
                .expected_htlc_error_data(0x1000 | 7, &err_data);
-               expect_payment_failed_conditions!(nodes[0], payment_hash, false, fail_conditions);
+               expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
 }
 
 #[test]
@@ -1134,7 +1332,7 @@ fn test_phantom_failure_reject_payment() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+       let channel = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
        // Get the route with a too-low amount.
        let recv_amt_msat = 10_000;
@@ -1155,8 +1353,8 @@ fn test_phantom_failure_reject_payment() {
        expect_pending_htlcs_forwardable_ignore!(nodes[1]);
        nodes[1].node.process_pending_htlc_forwards();
        expect_payment_received!(nodes[1], payment_hash, payment_secret, recv_amt_msat);
-       assert!(nodes[1].node.fail_htlc_backwards(&payment_hash));
-       expect_pending_htlcs_forwardable_ignore!(nodes[1]);
+       nodes[1].node.fail_htlc_backwards(&payment_hash);
+       expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash }]);
        nodes[1].node.process_pending_htlc_forwards();
 
        let update_1 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
@@ -1174,5 +1372,5 @@ fn test_phantom_failure_reject_payment() {
        let mut fail_conditions = PaymentFailedConditions::new()
                .blamed_scid(phantom_scid)
                .expected_htlc_error_data(0x4000 | 15, &error_data);
-       expect_payment_failed_conditions!(nodes[0], payment_hash, true, fail_conditions);
+       expect_payment_failed_conditions(&nodes[0], payment_hash, true, fail_conditions);
 }