Rename `PaymentForwarded::fee_earned_msat` to `total_fee_earned_msat`
[rust-lightning] / lightning / src / ln / functional_tests.rs
index 30ce176ad165a15f5bdb1db9aa11b6c2227c2740..c98b7231a218a7e4416938a2930465e22da832db 100644 (file)
@@ -15,35 +15,35 @@ use crate::chain;
 use crate::chain::{ChannelMonitorUpdateStatus, Confirm, Listen, Watch};
 use crate::chain::chaininterface::LowerBoundedFeeEstimator;
 use crate::chain::channelmonitor;
-use crate::chain::channelmonitor::{CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY};
+use crate::chain::channelmonitor::{CLOSED_CHANNEL_UPDATE_ID, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY};
 use crate::chain::transaction::OutPoint;
-use crate::chain::keysinterface::{ChannelSigner, EcdsaChannelSigner, EntropySource};
+use crate::sign::{ecdsa::EcdsaChannelSigner, EntropySource, SignerProvider};
 use crate::events::{Event, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose, ClosureReason, HTLCDestination, PaymentFailureReason};
-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::{ChannelId, 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, get_holder_selected_channel_reserve_satoshis, OutboundV1Channel, InboundV1Channel, COINBASE_MATURITY, ChannelPhase};
 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, 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};
-use crate::routing::router::{Path, PaymentParameters, Route, RouteHop, RouteParameters, find_route, get_route};
-use crate::ln::features::{ChannelFeatures, NodeFeatures};
+use crate::routing::router::{Path, PaymentParameters, Route, RouteHop, get_route, RouteParameters};
+use crate::ln::features::{ChannelFeatures, ChannelTypeFeatures, NodeFeatures};
 use crate::ln::msgs;
 use crate::ln::msgs::{ChannelMessageHandler, RoutingMessageHandler, ErrorAction};
-use crate::util::enforcing_trait_impls::EnforcingSigner;
-use crate::util::test_utils;
+use crate::util::test_channel_signer::TestChannelSigner;
+use crate::util::test_utils::{self, WatchtowerPersister};
 use crate::util::errors::APIError;
 use crate::util::ser::{Writeable, ReadableArgs};
 use crate::util::string::UntrustedString;
-use crate::util::config::UserConfig;
+use crate::util::config::{UserConfig, MaxDustHTLCExposure};
 
 use bitcoin::hash_types::BlockHash;
-use bitcoin::blockdata::block::{Block, BlockHeader};
-use bitcoin::blockdata::script::{Builder, Script};
+use bitcoin::blockdata::locktime::absolute::LockTime;
+use bitcoin::blockdata::script::{Builder, ScriptBuf};
 use bitcoin::blockdata::opcodes;
-use bitcoin::blockdata::constants::genesis_block;
+use bitcoin::blockdata::constants::ChainHash;
 use bitcoin::network::constants::Network;
-use bitcoin::{PackedLockTime, Sequence, Transaction, TxIn, TxMerkleNode, TxOut, Witness};
+use bitcoin::{Sequence, Transaction, TxIn, TxOut, Witness};
 use bitcoin::OutPoint as BitcoinOutPoint;
 
 use bitcoin::secp256k1::Secp256k1;
@@ -57,11 +57,13 @@ use alloc::collections::BTreeSet;
 use core::default::Default;
 use core::iter::repeat;
 use bitcoin::hashes::Hash;
-use crate::sync::{Arc, Mutex};
+use crate::sync::{Arc, Mutex, RwLock};
 
 use crate::ln::functional_test_utils::*;
 use crate::ln::chan_utils::CommitmentTransaction;
 
+use super::channel::UNFUNDED_CHANNEL_AGE_LIMIT_TICKS;
+
 #[test]
 fn test_insane_channel_opens() {
        // Stand up a network of 2 nodes
@@ -76,11 +78,11 @@ fn test_insane_channel_opens() {
        // Instantiate channel parameters where we push the maximum msats given our
        // funding satoshis
        let channel_value_sat = 31337; // same as funding satoshis
-       let channel_reserve_satoshis = Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(channel_value_sat, &cfg);
+       let channel_reserve_satoshis = get_holder_selected_channel_reserve_satoshis(channel_value_sat, &cfg);
        let push_msat = (channel_value_sat - channel_reserve_satoshis) * 1000;
 
        // Have node0 initiate a channel to node1 with aforementioned parameters
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_sat, push_msat, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_sat, push_msat, 42, None, None).unwrap();
 
        // Extract the channel open message from node0 to node1
        let open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
@@ -134,7 +136,7 @@ fn test_funding_exceeds_no_wumbo_limit() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       match nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), MAX_FUNDING_SATOSHIS_NO_WUMBO + 1, 0, 42, None) {
+       match nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), MAX_FUNDING_SATOSHIS_NO_WUMBO + 1, 0, 42, None, None) {
                Err(APIError::APIMisuseError { err }) => {
                        assert_eq!(format!("funding_value must not exceed {}, it was {}", MAX_FUNDING_SATOSHIS_NO_WUMBO, MAX_FUNDING_SATOSHIS_NO_WUMBO + 1), err);
                },
@@ -156,11 +158,11 @@ fn do_test_counterparty_no_reserve(send_from_initiator: bool) {
        // Have node0 initiate a channel to node1 with aforementioned parameters
        let mut push_amt = 100_000_000;
        let feerate_per_kw = 253;
-       let opt_anchors = false;
-       push_amt -= feerate_per_kw as u64 * (commitment_tx_base_weight(opt_anchors) + 4 * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000 * 1000;
-       push_amt -= Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
+       push_amt -= feerate_per_kw as u64 * (commitment_tx_base_weight(&channel_type_features) + 4 * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000 * 1000;
+       push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
 
-       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, if send_from_initiator { 0 } else { push_amt }, 42, None).unwrap();
+       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, if send_from_initiator { 0 } else { push_amt }, 42, None, None).unwrap();
        let mut open_channel_message = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
        if !send_from_initiator {
                open_channel_message.channel_reserve_satoshis = 0;
@@ -180,9 +182,16 @@ fn do_test_counterparty_no_reserve(send_from_initiator: bool) {
                let counterparty_node = if send_from_initiator { &nodes[0] } else { &nodes[1] };
                let mut sender_node_per_peer_lock;
                let mut sender_node_peer_state_lock;
-               let mut chan = get_channel_ref!(sender_node, counterparty_node, sender_node_per_peer_lock, sender_node_peer_state_lock, temp_channel_id);
-               chan.holder_selected_channel_reserve_satoshis = 0;
-               chan.holder_max_htlc_value_in_flight_msat = 100_000_000;
+
+               let channel_phase = get_channel_ref!(sender_node, counterparty_node, sender_node_per_peer_lock, sender_node_peer_state_lock, temp_channel_id);
+               match channel_phase {
+                       ChannelPhase::UnfundedInboundV1(_) | ChannelPhase::UnfundedOutboundV1(_) => {
+                               let chan_context = channel_phase.context_mut();
+                               chan_context.holder_selected_channel_reserve_satoshis = 0;
+                               chan_context.holder_max_htlc_value_in_flight_msat = 100_000_000;
+                       },
+                       ChannelPhase::Funded(_) => assert!(false),
+               }
        }
 
        let funding_tx = sign_funding_transaction(&nodes[0], &nodes[1], 100_000, temp_channel_id);
@@ -196,7 +205,7 @@ fn do_test_counterparty_no_reserve(send_from_initiator: bool) {
                        // Note that for outbound channels we have to consider the commitment tx fee and the
                        // "fee spike buffer", which is currently a multiple of the total commitment tx fee as
                        // well as an additional HTLC.
-                       - FEE_SPIKE_BUFFER_FEE_INCREASE_MULTIPLE * commit_tx_fee_msat(feerate_per_kw, 2, opt_anchors));
+                       - FEE_SPIKE_BUFFER_FEE_INCREASE_MULTIPLE * commit_tx_fee_msat(feerate_per_kw, 2, &channel_type_features));
        } else {
                send_payment(&nodes[1], &[&nodes[0]], push_amt);
        }
@@ -509,16 +518,13 @@ fn do_test_sanity_on_in_flight_opens(steps: u8) {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
        if steps & 0b1000_0000 != 0{
-               let block = Block {
-                       header: BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-                       txdata: vec![],
-               };
+               let block = create_dummy_block(nodes[0].best_block_hash(), 42, Vec::new());
                connect_block(&nodes[0], &block);
                connect_block(&nodes[1], &block);
        }
 
        if steps & 0x0f == 0 { return; }
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
        let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
 
        if steps & 0x0f == 1 { return; }
@@ -647,16 +653,16 @@ fn test_update_fee_that_funder_cannot_afford() {
        let channel_id = chan.2;
        let secp_ctx = Secp256k1::new();
        let default_config = UserConfig::default();
-       let bs_channel_reserve_sats = Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(channel_value, &default_config);
+       let bs_channel_reserve_sats = get_holder_selected_channel_reserve_satoshis(channel_value, &default_config);
 
-       let opt_anchors = false;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
 
        // Calculate the maximum feerate that A can afford. Note that we don't send an update_fee
        // CONCURRENT_INBOUND_HTLC_FEE_BUFFER HTLCs before actually running out of local balance, so we
        // calculate two different feerates here - the expected local limit as well as the expected
        // remote limit.
-       let feerate = ((channel_value - bs_channel_reserve_sats - push_sats) * 1000 / (commitment_tx_base_weight(opt_anchors) + CONCURRENT_INBOUND_HTLC_FEE_BUFFER as u64 * COMMITMENT_TX_WEIGHT_PER_HTLC)) as u32;
-       let non_buffer_feerate = ((channel_value - bs_channel_reserve_sats - push_sats) * 1000 / commitment_tx_base_weight(opt_anchors)) as u32;
+       let feerate = ((channel_value - bs_channel_reserve_sats - push_sats) * 1000 / (commitment_tx_base_weight(&channel_type_features) + CONCURRENT_INBOUND_HTLC_FEE_BUFFER as u64 * COMMITMENT_TX_WEIGHT_PER_HTLC)) as u32;
+       let non_buffer_feerate = ((channel_value - bs_channel_reserve_sats - push_sats) * 1000 / commitment_tx_base_weight(&channel_type_features)) as u32;
        {
                let mut feerate_lock = chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap();
                *feerate_lock = feerate;
@@ -675,7 +681,7 @@ fn test_update_fee_that_funder_cannot_afford() {
 
                //We made sure neither party's funds are below the dust limit and there are no HTLCs here
                assert_eq!(commitment_tx.output.len(), 2);
-               let total_fee: u64 = commit_tx_fee_msat(feerate, 0, opt_anchors) / 1000;
+               let total_fee: u64 = commit_tx_fee_msat(feerate, 0, &channel_type_features) / 1000;
                let mut actual_fee = commitment_tx.output.iter().fold(0, |acc, output| acc + output.value);
                actual_fee = channel_value - actual_fee;
                assert_eq!(total_fee, actual_fee);
@@ -687,30 +693,34 @@ fn test_update_fee_that_funder_cannot_afford() {
                *feerate_lock += 4;
        }
        nodes[0].node.timer_tick_occurred();
-       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Cannot afford to send new feerate at {}", feerate + 4), 1);
+       nodes[0].logger.assert_log("lightning::ln::channel", format!("Cannot afford to send new feerate at {}", feerate + 4), 1);
        check_added_monitors!(nodes[0], 0);
 
        const INITIAL_COMMITMENT_NUMBER: u64 = 281474976710654;
 
-       // Get the EnforcingSigner for each channel, which will be used to (1) get the keys
+       // Get the TestChannelSigner for each channel, which will be used to (1) get the keys
        // needed to sign the new commitment tx and (2) sign the new commitment tx.
        let (local_revocation_basepoint, local_htlc_basepoint, local_funding) = {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
-               let local_chan = chan_lock.channel_by_id.get(&chan.2).unwrap();
+               let local_chan = chan_lock.channel_by_id.get(&chan.2).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                let chan_signer = local_chan.get_signer();
-               let pubkeys = chan_signer.pubkeys();
+               let pubkeys = chan_signer.as_ref().pubkeys();
                (pubkeys.revocation_basepoint, pubkeys.htlc_basepoint,
                 pubkeys.funding_pubkey)
        };
        let (remote_delayed_payment_basepoint, remote_htlc_basepoint,remote_point, remote_funding) = {
                let per_peer_state = nodes[1].node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(&nodes[0].node.get_our_node_id()).unwrap().lock().unwrap();
-               let remote_chan = chan_lock.channel_by_id.get(&chan.2).unwrap();
+               let remote_chan = chan_lock.channel_by_id.get(&chan.2).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                let chan_signer = remote_chan.get_signer();
-               let pubkeys = chan_signer.pubkeys();
+               let pubkeys = chan_signer.as_ref().pubkeys();
                (pubkeys.delayed_payment_basepoint, pubkeys.htlc_basepoint,
-                chan_signer.get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 1, &secp_ctx),
+                chan_signer.as_ref().get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 1, &secp_ctx),
                 pubkeys.funding_pubkey)
        };
 
@@ -721,20 +731,22 @@ fn test_update_fee_that_funder_cannot_afford() {
        let res = {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let local_chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
-               let local_chan = local_chan_lock.channel_by_id.get(&chan.2).unwrap();
+               let local_chan = local_chan_lock.channel_by_id.get(&chan.2).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                let local_chan_signer = local_chan.get_signer();
                let mut htlcs: Vec<(HTLCOutputInCommitment, ())> = vec![];
                let commitment_tx = CommitmentTransaction::new_with_auxiliary_htlc_data(
                        INITIAL_COMMITMENT_NUMBER - 1,
                        push_sats,
-                       channel_value - push_sats - commit_tx_fee_msat(non_buffer_feerate + 4, 0, opt_anchors) / 1000,
-                       opt_anchors, local_funding, remote_funding,
+                       channel_value - push_sats - commit_tx_fee_msat(non_buffer_feerate + 4, 0, &channel_type_features) / 1000,
+                       local_funding, remote_funding,
                        commit_tx_keys.clone(),
                        non_buffer_feerate + 4,
                        &mut htlcs,
-                       &local_chan.channel_transaction_parameters.as_counterparty_broadcastable()
+                       &local_chan.context.channel_transaction_parameters.as_counterparty_broadcastable()
                );
-               local_chan_signer.sign_counterparty_commitment(&commitment_tx, Vec::new(), &secp_ctx).unwrap()
+               local_chan_signer.as_ecdsa().unwrap().sign_counterparty_commitment(&commitment_tx, Vec::new(), Vec::new(), &secp_ctx).unwrap()
        };
 
        let commit_signed_msg = msgs::CommitmentSigned {
@@ -756,10 +768,11 @@ fn test_update_fee_that_funder_cannot_afford() {
        //check to see if the funder, who sent the update_fee request, can afford the new fee (funder_balance >= fee+channel_reserve)
        //Should produce and error.
        nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &commit_signed_msg);
-       nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Funding remote cannot afford proposed new fee".to_string(), 1);
+       nodes[1].logger.assert_log_contains("lightning::ln::channelmanager", "Funding remote cannot afford proposed new fee", 3);
        check_added_monitors!(nodes[1], 1);
        check_closed_broadcast!(nodes[1], true);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: String::from("Funding remote cannot afford proposed new fee") });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: String::from("Funding remote cannot afford proposed new fee") },
+               [nodes[0].node.get_our_node_id()], channel_value);
 }
 
 #[test]
@@ -858,8 +871,8 @@ fn test_update_fee_with_fundee_update_add_htlc() {
        send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000);
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000);
        close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
-       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure);
-       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -972,8 +985,8 @@ fn test_update_fee() {
        assert_eq!(get_feerate!(nodes[0], nodes[1], channel_id), feerate + 30);
        assert_eq!(get_feerate!(nodes[1], nodes[0], channel_id), feerate + 30);
        close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
-       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure);
-       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -1024,7 +1037,8 @@ fn fake_network_test() {
                short_channel_id: chan_2.0.contents.short_channel_id,
                channel_features: ChannelFeatures::empty(),
                fee_msat: 0,
-               cltv_expiry_delta: chan_3.0.contents.cltv_expiry_delta as u32
+               cltv_expiry_delta: chan_3.0.contents.cltv_expiry_delta as u32,
+               maybe_announced_channel: true,
        });
        hops.push(RouteHop {
                pubkey: nodes[3].node.get_our_node_id(),
@@ -1032,7 +1046,8 @@ fn fake_network_test() {
                short_channel_id: chan_3.0.contents.short_channel_id,
                channel_features: ChannelFeatures::empty(),
                fee_msat: 0,
-               cltv_expiry_delta: chan_4.1.contents.cltv_expiry_delta as u32
+               cltv_expiry_delta: chan_4.1.contents.cltv_expiry_delta as u32,
+               maybe_announced_channel: true,
        });
        hops.push(RouteHop {
                pubkey: nodes[1].node.get_our_node_id(),
@@ -1041,10 +1056,13 @@ fn fake_network_test() {
                channel_features: nodes[1].node.channel_features(),
                fee_msat: 1000000,
                cltv_expiry_delta: TEST_FINAL_CLTV,
+               maybe_announced_channel: true,
        });
        hops[1].fee_msat = chan_4.1.contents.fee_base_msat as u64 + chan_4.1.contents.fee_proportional_millionths as u64 * hops[2].fee_msat as u64 / 1000000;
        hops[0].fee_msat = chan_3.0.contents.fee_base_msat as u64 + chan_3.0.contents.fee_proportional_millionths as u64 * hops[1].fee_msat as u64 / 1000000;
-       let payment_preimage_1 = send_along_route(&nodes[1], Route { paths: vec![Path { hops, blinded_tail: None }], payment_params: None }, &vec!(&nodes[2], &nodes[3], &nodes[1])[..], 1000000).0;
+       let payment_preimage_1 = send_along_route(&nodes[1],
+               Route { paths: vec![Path { hops, blinded_tail: None }], route_params: None },
+                       &vec!(&nodes[2], &nodes[3], &nodes[1])[..], 1000000).0;
 
        let mut hops = Vec::with_capacity(3);
        hops.push(RouteHop {
@@ -1053,7 +1071,8 @@ fn fake_network_test() {
                short_channel_id: chan_4.0.contents.short_channel_id,
                channel_features: ChannelFeatures::empty(),
                fee_msat: 0,
-               cltv_expiry_delta: chan_3.1.contents.cltv_expiry_delta as u32
+               cltv_expiry_delta: chan_3.1.contents.cltv_expiry_delta as u32,
+               maybe_announced_channel: true,
        });
        hops.push(RouteHop {
                pubkey: nodes[2].node.get_our_node_id(),
@@ -1061,7 +1080,8 @@ fn fake_network_test() {
                short_channel_id: chan_3.0.contents.short_channel_id,
                channel_features: ChannelFeatures::empty(),
                fee_msat: 0,
-               cltv_expiry_delta: chan_2.1.contents.cltv_expiry_delta as u32
+               cltv_expiry_delta: chan_2.1.contents.cltv_expiry_delta as u32,
+               maybe_announced_channel: true,
        });
        hops.push(RouteHop {
                pubkey: nodes[1].node.get_our_node_id(),
@@ -1070,10 +1090,13 @@ fn fake_network_test() {
                channel_features: nodes[1].node.channel_features(),
                fee_msat: 1000000,
                cltv_expiry_delta: TEST_FINAL_CLTV,
+               maybe_announced_channel: true,
        });
        hops[1].fee_msat = chan_2.1.contents.fee_base_msat as u64 + chan_2.1.contents.fee_proportional_millionths as u64 * hops[2].fee_msat as u64 / 1000000;
        hops[0].fee_msat = chan_3.1.contents.fee_base_msat as u64 + chan_3.1.contents.fee_proportional_millionths as u64 * hops[1].fee_msat as u64 / 1000000;
-       let payment_hash_2 = send_along_route(&nodes[1], Route { paths: vec![Path { hops, blinded_tail: None }], payment_params: None }, &vec!(&nodes[3], &nodes[2], &nodes[1])[..], 1000000).1;
+       let payment_hash_2 = send_along_route(&nodes[1],
+               Route { paths: vec![Path { hops, blinded_tail: None }], route_params: None },
+                       &vec!(&nodes[3], &nodes[2], &nodes[1])[..], 1000000).1;
 
        // Claim the rebalances...
        fail_payment(&nodes[1], &vec!(&nodes[3], &nodes[2], &nodes[1])[..], payment_hash_2);
@@ -1081,17 +1104,17 @@ fn fake_network_test() {
 
        // Close down the channels...
        close_channel(&nodes[0], &nodes[1], &chan_1.2, chan_1.3, true);
-       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure);
-       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
        close_channel(&nodes[1], &nodes[2], &chan_2.2, chan_2.3, false);
-       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure);
-       check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
        close_channel(&nodes[2], &nodes[3], &chan_3.2, chan_3.3, true);
-       check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure);
-       check_closed_event!(nodes[3], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[2], 1, ClosureReason::CooperativeClosure, [nodes[3].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[3], 1, ClosureReason::CooperativeClosure, [nodes[2].node.get_our_node_id()], 100000);
        close_channel(&nodes[1], &nodes[3], &chan_4.2, chan_4.3, false);
-       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure);
-       check_closed_event!(nodes[3], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[3].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[3], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -1106,6 +1129,9 @@ fn holding_cell_htlc_counting() {
        create_announced_chan_between_nodes(&nodes, 0, 1);
        let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
 
+       // Fetch a route in advance as we will be unable to once we're unable to send.
+       let (route, payment_hash_1, _, payment_secret_1) = get_route_and_payment_hash!(nodes[1], nodes[2], 100000);
+
        let mut payments = Vec::new();
        for _ in 0..50 {
                let (route, payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[2], 100000);
@@ -1123,14 +1149,11 @@ fn holding_cell_htlc_counting() {
        // There is now one HTLC in an outbound commitment transaction and (OUR_MAX_HTLCS - 1) HTLCs in
        // the holding cell waiting on B's RAA to send. At this point we should not be able to add
        // another HTLC.
-       let (route, payment_hash_1, _, payment_secret_1) = get_route_and_payment_hash!(nodes[1], nodes[2], 100000);
        {
                unwrap_send_err!(nodes[1].node.send_payment_with_route(&route, payment_hash_1,
                                RecipientOnionFields::secret_only(payment_secret_1), PaymentId(payment_hash_1.0)
-                       ), true, APIError::ChannelUnavailable { ref err },
-                       assert!(regex::Regex::new(r"Cannot push more than their max accepted HTLCs \(\d+\)").unwrap().is_match(err)));
+                       ), true, APIError::ChannelUnavailable { .. }, {});
                assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
-               nodes[1].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot push more than their max accepted HTLCs", 1);
        }
 
        // This should also be true if we try to forward a payment.
@@ -1228,7 +1251,7 @@ fn duplicate_htlc_test() {
        create_announced_chan_between_nodes(&nodes, 3, 4);
        create_announced_chan_between_nodes(&nodes, 3, 5);
 
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], 1000000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], 1000000);
 
        *nodes[0].network_payment_count.borrow_mut() -= 1;
        assert_eq!(route_payment(&nodes[1], &vec!(&nodes[3])[..], 1000000).0, payment_preimage);
@@ -1256,7 +1279,7 @@ fn test_duplicate_htlc_different_direction_onchain() {
        // balancing
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
 
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 900_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 900_000);
 
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[0], 800_000);
        let node_a_payment_secret = nodes[0].node.create_inbound_payment_for_hash(payment_hash, None, 7200, None).unwrap();
@@ -1283,7 +1306,7 @@ fn test_duplicate_htlc_different_direction_onchain() {
 
        mine_transaction(&nodes[0], &remote_txn[0]);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[0], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
 
        let claim_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
@@ -1316,9 +1339,9 @@ fn test_duplicate_htlc_different_direction_onchain() {
        for e in events {
                match e {
                        MessageSendEvent::BroadcastChannelUpdate { .. } => {},
-                       MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
+                       MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::DisconnectPeer { ref msg } } => {
                                assert_eq!(node_id, nodes[1].node.get_our_node_id());
-                               assert_eq!(msg.data, "Channel closed because commitment or closing transaction was confirmed on chain.");
+                               assert_eq!(msg.as_ref().unwrap().data, "Channel closed because commitment or closing transaction was confirmed on chain.");
                        },
                        MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => {
                                assert!(update_add_htlcs.is_empty());
@@ -1344,23 +1367,21 @@ fn test_basic_channel_reserve() {
        let channel_reserve = chan_stat.channel_reserve_msat;
 
        // The 2* and +1 are for the fee spike reserve.
-       let commit_tx_fee = 2 * commit_tx_fee_msat(get_feerate!(nodes[0], nodes[1], chan.2), 1 + 1, get_opt_anchors!(nodes[0], nodes[1], chan.2));
+       let commit_tx_fee = 2 * commit_tx_fee_msat(get_feerate!(nodes[0], nodes[1], chan.2), 1 + 1, &get_channel_type_features!(nodes[0], nodes[1], chan.2));
        let max_can_send = 5000000 - channel_reserve - commit_tx_fee;
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], max_can_send + 1);
+       let (mut route, our_payment_hash, _, our_payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], max_can_send);
+       route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
        let err = nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)).err().unwrap();
        match err {
                PaymentSendFailure::AllFailedResendSafe(ref fails) => {
-                       match &fails[0] {
-                               &APIError::ChannelUnavailable{ref err} =>
-                                       assert!(regex::Regex::new(r"Cannot send value that would put our balance under counterparty-announced channel reserve value \(\d+\)").unwrap().is_match(err)),
-                               _ => panic!("Unexpected error variant"),
-                       }
+                       if let &APIError::ChannelUnavailable { .. } = &fails[0] {}
+                       else { panic!("Unexpected error variant"); }
                },
                _ => panic!("Unexpected error variant"),
        }
        assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
-       nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot send value that would put our balance under counterparty-announced channel reserve value", 1);
 
        send_payment(&nodes[0], &vec![&nodes[1]], max_can_send);
 }
@@ -1373,7 +1394,9 @@ fn test_fee_spike_violation_fails_htlc() {
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000);
 
-       let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 3460001);
+       let (mut route, payment_hash, _, payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], 3460000);
+       route.paths[0].hops[0].fee_msat += 1;
        // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
        let secp_ctx = Secp256k1::new();
        let session_priv = SecretKey::from_slice(&[42; 32]).expect("RNG is bad!");
@@ -1383,7 +1406,7 @@ 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,
@@ -1391,6 +1414,8 @@ fn test_fee_spike_violation_fails_htlc() {
                payment_hash: payment_hash,
                cltv_expiry: htlc_cltv,
                onion_routing_packet: onion_packet,
+               skimmed_fee_msat: None,
+               blinding_point: None,
        };
 
        nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg);
@@ -1403,31 +1428,35 @@ fn test_fee_spike_violation_fails_htlc() {
 
        const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1;
 
-       // Get the EnforcingSigner for each channel, which will be used to (1) get the keys
+       // Get the TestChannelSigner for each channel, which will be used to (1) get the keys
        // needed to sign the new commitment tx and (2) sign the new commitment tx.
        let (local_revocation_basepoint, local_htlc_basepoint, local_secret, next_local_point, local_funding) = {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
-               let local_chan = chan_lock.channel_by_id.get(&chan.2).unwrap();
+               let local_chan = chan_lock.channel_by_id.get(&chan.2).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                let chan_signer = local_chan.get_signer();
                // Make the signer believe we validated another commitment, so we can release the secret
-               chan_signer.get_enforcement_state().last_holder_commitment -= 1;
+               chan_signer.as_ecdsa().unwrap().get_enforcement_state().last_holder_commitment -= 1;
 
-               let pubkeys = chan_signer.pubkeys();
+               let pubkeys = chan_signer.as_ref().pubkeys();
                (pubkeys.revocation_basepoint, pubkeys.htlc_basepoint,
-                chan_signer.release_commitment_secret(INITIAL_COMMITMENT_NUMBER),
-                chan_signer.get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 2, &secp_ctx),
-                chan_signer.pubkeys().funding_pubkey)
+                chan_signer.as_ref().release_commitment_secret(INITIAL_COMMITMENT_NUMBER),
+                chan_signer.as_ref().get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 2, &secp_ctx),
+                chan_signer.as_ref().pubkeys().funding_pubkey)
        };
        let (remote_delayed_payment_basepoint, remote_htlc_basepoint, remote_point, remote_funding) = {
                let per_peer_state = nodes[1].node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(&nodes[0].node.get_our_node_id()).unwrap().lock().unwrap();
-               let remote_chan = chan_lock.channel_by_id.get(&chan.2).unwrap();
+               let remote_chan = chan_lock.channel_by_id.get(&chan.2).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                let chan_signer = remote_chan.get_signer();
-               let pubkeys = chan_signer.pubkeys();
+               let pubkeys = chan_signer.as_ref().pubkeys();
                (pubkeys.delayed_payment_basepoint, pubkeys.htlc_basepoint,
-                chan_signer.get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 1, &secp_ctx),
-                chan_signer.pubkeys().funding_pubkey)
+                chan_signer.as_ref().get_per_commitment_point(INITIAL_COMMITMENT_NUMBER - 1, &secp_ctx),
+                chan_signer.as_ref().pubkeys().funding_pubkey)
        };
 
        // Assemble the set of keys we can use for signatures for our commitment_signed message.
@@ -1451,19 +1480,21 @@ fn test_fee_spike_violation_fails_htlc() {
        let res = {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let local_chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
-               let local_chan = local_chan_lock.channel_by_id.get(&chan.2).unwrap();
+               let local_chan = local_chan_lock.channel_by_id.get(&chan.2).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                let local_chan_signer = local_chan.get_signer();
                let commitment_tx = CommitmentTransaction::new_with_auxiliary_htlc_data(
                        commitment_number,
                        95000,
                        local_chan_balance,
-                       local_chan.opt_anchors(), local_funding, remote_funding,
+                       local_funding, remote_funding,
                        commit_tx_keys.clone(),
                        feerate_per_kw,
                        &mut vec![(accepted_htlc_info, ())],
-                       &local_chan.channel_transaction_parameters.as_counterparty_broadcastable()
+                       &local_chan.context.channel_transaction_parameters.as_counterparty_broadcastable()
                );
-               local_chan_signer.sign_counterparty_commitment(&commitment_tx, Vec::new(), &secp_ctx).unwrap()
+               local_chan_signer.as_ecdsa().unwrap().sign_counterparty_commitment(&commitment_tx, Vec::new(), Vec::new(), &secp_ctx).unwrap()
        };
 
        let commit_signed_msg = msgs::CommitmentSigned {
@@ -1498,8 +1529,8 @@ fn test_fee_spike_violation_fails_htlc() {
                },
                _ => panic!("Unexpected event"),
        };
-       nodes[1].logger.assert_log("lightning::ln::channel".to_string(),
-               format!("Attempting to fail HTLC due to fee spike buffer violation in channel {}. Rebalancing is required.", ::hex::encode(raa_msg.channel_id)), 1);
+       nodes[1].logger.assert_log("lightning::ln::channel",
+               format!("Attempting to fail HTLC due to fee spike buffer violation in channel {}. Rebalancing is required.", raa_msg.channel_id), 1);
 
        check_added_monitors!(nodes[1], 2);
 }
@@ -1516,28 +1547,27 @@ fn test_chan_reserve_violation_outbound_htlc_inbound_chan() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let default_config = UserConfig::default();
-       let opt_anchors = false;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
 
        let mut push_amt = 100_000_000;
-       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, opt_anchors);
+       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, &channel_type_features);
 
-       push_amt -= Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
+       push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
 
        let _ = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, push_amt);
 
+       // Fetch a route in advance as we will be unable to once we're unable to send.
+       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], 1_000_000);
        // Sending exactly enough to hit the reserve amount should be accepted
        for _ in 0..MIN_AFFORDABLE_HTLC_COUNT {
-               let (_, _, _) = route_payment(&nodes[1], &[&nodes[0]], 1_000_000);
+               route_payment(&nodes[1], &[&nodes[0]], 1_000_000);
        }
 
        // However one more HTLC should be significantly over the reserve amount and fail.
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], 1_000_000);
        unwrap_send_err!(nodes[1].node.send_payment_with_route(&route, our_payment_hash,
                        RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-               ), true, APIError::ChannelUnavailable { ref err },
-               assert_eq!(err, "Cannot send value that would put counterparty balance under holder-announced channel reserve value"));
+               ), true, APIError::ChannelUnavailable { .. }, {});
        assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
-       nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Cannot send value that would put counterparty balance under holder-announced channel reserve value".to_string(), 1);
 }
 
 #[test]
@@ -1548,22 +1578,24 @@ fn test_chan_reserve_violation_inbound_htlc_outbound_channel() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let default_config = UserConfig::default();
-       let opt_anchors = false;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
 
        // Set nodes[0]'s balance such that they will consider any above-dust received HTLC to be a
        // channel reserve violation (so their balance is channel reserve (1000 sats) + commitment
        // transaction fee with 0 HTLCs (183 sats)).
        let mut push_amt = 100_000_000;
-       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, opt_anchors);
-       push_amt -= Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
+       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, &channel_type_features);
+       push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, push_amt);
 
        // Send four HTLCs to cover the initial push_msat buffer we're required to include
        for _ in 0..MIN_AFFORDABLE_HTLC_COUNT {
-               let (_, _, _) = route_payment(&nodes[1], &[&nodes[0]], 1_000_000);
+               route_payment(&nodes[1], &[&nodes[0]], 1_000_000);
        }
 
-       let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], 700_000);
+       let (mut route, payment_hash, _, payment_secret) =
+               get_route_and_payment_hash!(nodes[1], nodes[0], 1000);
+       route.paths[0].hops[0].fee_msat = 700_000;
        // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
        let secp_ctx = Secp256k1::new();
        let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
@@ -1571,7 +1603,7 @@ 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,
@@ -1579,16 +1611,19 @@ fn test_chan_reserve_violation_inbound_htlc_outbound_channel() {
                payment_hash: payment_hash,
                cltv_expiry: htlc_cltv,
                onion_routing_packet: onion_packet,
+               skimmed_fee_msat: None,
+               blinding_point: None,
        };
 
        nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &msg);
        // Check that the payment failed and the channel is closed in response to the malicious UpdateAdd.
-       nodes[0].logger.assert_log("lightning::ln::channelmanager".to_string(), "Cannot accept HTLC that would put our balance under counterparty-announced channel reserve value".to_string(), 1);
+       nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot accept HTLC that would put our balance under counterparty-announced channel reserve value", 3);
        assert_eq!(nodes[0].node.list_channels().len(), 0);
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert_eq!(err_msg.data, "Cannot accept HTLC that would put our balance under counterparty-announced channel reserve value");
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: "Cannot accept HTLC that would put our balance under counterparty-announced channel reserve value".to_string() });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: "Cannot accept HTLC that would put our balance under counterparty-announced channel reserve value".to_string() },
+               [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -1602,34 +1637,35 @@ fn test_chan_reserve_dust_inbound_htlcs_outbound_chan() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None, None]);
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let default_config = UserConfig::default();
-       let opt_anchors = false;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
 
        // Set nodes[0]'s balance such that they will consider any above-dust received HTLC to be a
        // channel reserve violation (so their balance is channel reserve (1000 sats) + commitment
        // transaction fee with 0 HTLCs (183 sats)).
        let mut push_amt = 100_000_000;
-       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, opt_anchors);
-       push_amt -= Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
+       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, &channel_type_features);
+       push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
        create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, push_amt);
 
        let dust_amt = crate::ln::channel::MIN_CHAN_DUST_LIMIT_SATOSHIS * 1000
-               + feerate_per_kw as u64 * htlc_success_tx_weight(opt_anchors) / 1000 * 1000 - 1;
+               + feerate_per_kw as u64 * htlc_success_tx_weight(&channel_type_features) / 1000 * 1000 - 1;
        // In the previous code, routing this dust payment would cause nodes[0] to perceive a channel
        // reserve violation even though it's a dust HTLC and therefore shouldn't count towards the
        // commitment transaction fee.
-       let (_, _, _) = route_payment(&nodes[1], &[&nodes[0]], dust_amt);
+       route_payment(&nodes[1], &[&nodes[0]], dust_amt);
 
        // Send four HTLCs to cover the initial push_msat buffer we're required to include
        for _ in 0..MIN_AFFORDABLE_HTLC_COUNT {
-               let (_, _, _) = route_payment(&nodes[1], &[&nodes[0]], 1_000_000);
+               route_payment(&nodes[1], &[&nodes[0]], 1_000_000);
        }
 
        // One more than the dust amt should fail, however.
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], dust_amt + 1);
+       let (mut route, our_payment_hash, _, our_payment_secret) =
+               get_route_and_payment_hash!(nodes[1], nodes[0], dust_amt);
+       route.paths[0].hops[0].fee_msat += 1;
        unwrap_send_err!(nodes[1].node.send_payment_with_route(&route, our_payment_hash,
                        RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-               ), true, APIError::ChannelUnavailable { ref err },
-               assert_eq!(err, "Cannot send value that would put counterparty balance under holder-announced channel reserve value"));
+               ), true, APIError::ChannelUnavailable { .. }, {});
 }
 
 #[test]
@@ -1642,19 +1678,19 @@ fn test_chan_init_feerate_unaffordability() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let default_config = UserConfig::default();
-       let opt_anchors = false;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
 
        // Set the push_msat amount such that nodes[0] will not be able to afford to add even a single
        // HTLC.
        let mut push_amt = 100_000_000;
-       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, opt_anchors);
-       assert_eq!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt + 1, 42, None).unwrap_err(),
+       push_amt -= commit_tx_fee_msat(feerate_per_kw, MIN_AFFORDABLE_HTLC_COUNT as u64, &channel_type_features);
+       assert_eq!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt + 1, 42, None, None).unwrap_err(),
                APIError::APIMisuseError { err: "Funding amount (356) can't even pay fee for initial commitment transaction fee of 357.".to_string() });
 
        // During open, we don't have a "counterparty channel reserve" to check against, so that
        // requirement only comes into play on the open_channel handling side.
-       push_amt -= Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt, 42, None).unwrap();
+       push_amt -= get_holder_selected_channel_reserve_satoshis(100_000, &default_config) * 1000;
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, push_amt, 42, None, None).unwrap();
        let mut open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
        open_channel_msg.push_msat += 1;
        nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
@@ -1681,22 +1717,22 @@ fn test_chan_reserve_dust_inbound_htlcs_inbound_chan() {
 
        let payment_amt = 46000; // Dust amount
        // In the previous code, these first four payments would succeed.
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
 
        // Then these next 5 would be interpreted by nodes[1] as violating the fee spike buffer.
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
 
        // And this last payment previously resulted in nodes[1] closing on its inbound-channel
        // counterparty, because it counted all the previous dust HTLCs against nodes[0]'s commitment
        // transaction fee and therefore perceived this next payment as a channel reserve violation.
-       let (_, _, _) = route_payment(&nodes[0], &[&nodes[1]], payment_amt);
+       route_payment(&nodes[0], &[&nodes[1]], payment_amt);
 }
 
 #[test]
@@ -1712,10 +1748,10 @@ fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
        let total_routing_fee_msat = (nodes.len() - 2) as u64 * feemsat;
        let chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan.2);
        let feerate = get_feerate!(nodes[0], nodes[1], chan.2);
-       let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan.2);
+       let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan.2);
 
        // Add a 2* and +1 for the fee spike reserve.
-       let commit_tx_fee_2_htlc = 2*commit_tx_fee_msat(feerate, 2 + 1, opt_anchors);
+       let commit_tx_fee_2_htlc = 2*commit_tx_fee_msat(feerate, 2 + 1, &channel_type_features);
        let recv_value_1 = (chan_stat.value_to_self_msat - chan_stat.channel_reserve_msat - total_routing_fee_msat - commit_tx_fee_2_htlc)/2;
        let amt_msat_1 = recv_value_1 + total_routing_fee_msat;
 
@@ -1733,10 +1769,11 @@ fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
        nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event_1.msgs[0]);
 
        // Attempt to trigger a channel reserve violation --> payment failure.
-       let commit_tx_fee_2_htlcs = commit_tx_fee_msat(feerate, 2, opt_anchors);
+       let commit_tx_fee_2_htlcs = commit_tx_fee_msat(feerate, 2, &channel_type_features);
        let recv_value_2 = chan_stat.value_to_self_msat - amt_msat_1 - chan_stat.channel_reserve_msat - total_routing_fee_msat - commit_tx_fee_2_htlcs + 1;
        let amt_msat_2 = recv_value_2 + total_routing_fee_msat;
-       let (route_2, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[2], amt_msat_2);
+       let mut route_2 = route_1.clone();
+       route_2.paths[0].hops.last_mut().unwrap().fee_msat = amt_msat_2;
 
        // Need to manually create the update_add_htlc message to go around the channel reserve check in send_htlc()
        let secp_ctx = Secp256k1::new();
@@ -1745,7 +1782,7 @@ 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,
@@ -1753,16 +1790,19 @@ fn test_chan_reserve_violation_inbound_htlc_inbound_chan() {
                payment_hash: our_payment_hash_1,
                cltv_expiry: htlc_cltv,
                onion_routing_packet: onion_packet,
+               skimmed_fee_msat: None,
+               blinding_point: None,
        };
 
        nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg);
        // Check that the payment failed and the channel is closed in response to the malicious UpdateAdd.
-       nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Remote HTLC add would put them under remote reserve value".to_string(), 1);
+       nodes[1].logger.assert_log_contains("lightning::ln::channelmanager", "Remote HTLC add would put them under remote reserve value", 3);
        assert_eq!(nodes[1].node.list_channels().len(), 1);
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert_eq!(err_msg.data, "Remote HTLC add would put them under remote reserve value");
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "Remote HTLC add would put them under remote reserve value".to_string() });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "Remote HTLC add would put them under remote reserve value".to_string() },
+               [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -1778,7 +1818,7 @@ fn test_inbound_outbound_capacity_is_not_zero() {
        assert_eq!(channels0.len(), 1);
        assert_eq!(channels1.len(), 1);
 
-       let reserve = Channel::<EnforcingSigner>::get_holder_selected_channel_reserve_satoshis(100_000, &default_config);
+       let reserve = get_holder_selected_channel_reserve_satoshis(100_000, &default_config);
        assert_eq!(channels0[0].inbound_capacity_msat, 95000000 - reserve*1000);
        assert_eq!(channels1[0].outbound_capacity_msat, 95000000 - reserve*1000);
 
@@ -1786,8 +1826,8 @@ fn test_inbound_outbound_capacity_is_not_zero() {
        assert_eq!(channels1[0].inbound_capacity_msat, 100000 * 1000 - 95000000 - reserve*1000);
 }
 
-fn commit_tx_fee_msat(feerate: u32, num_htlcs: u64, opt_anchors: bool) -> u64 {
-       (commitment_tx_base_weight(opt_anchors) + num_htlcs * COMMITMENT_TX_WEIGHT_PER_HTLC) * feerate as u64 / 1000 * 1000
+fn commit_tx_fee_msat(feerate: u32, num_htlcs: u64, channel_type_features: &ChannelTypeFeatures) -> u64 {
+       (commitment_tx_base_weight(channel_type_features) + num_htlcs * COMMITMENT_TX_WEIGHT_PER_HTLC) * feerate as u64 / 1000 * 1000
 }
 
 #[test]
@@ -1822,24 +1862,22 @@ fn test_channel_reserve_holding_cell_htlcs() {
        let feemsat = 239; // set above
        let total_fee_msat = (nodes.len() - 2) as u64 * feemsat;
        let feerate = get_feerate!(nodes[0], nodes[1], chan_1.2);
-       let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan_1.2);
+       let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan_1.2);
 
        let recv_value_0 = stat01.counterparty_max_htlc_value_in_flight_msat - total_fee_msat;
 
        // attempt to send amt_msat > their_max_htlc_value_in_flight_msat
        {
                let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-                       .with_features(nodes[2].node.invoice_features()).with_max_channel_saturation_power_of_half(0);
+                       .with_bolt11_features(nodes[2].node.bolt11_invoice_features()).unwrap().with_max_channel_saturation_power_of_half(0);
                let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], payment_params, recv_value_0);
                route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
                assert!(route.paths[0].hops.iter().rev().skip(1).all(|h| h.fee_msat == feemsat));
 
                unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-                       ), true, APIError::ChannelUnavailable { ref err },
-                       assert!(regex::Regex::new(r"Cannot send value that would put us over the max HTLC value in flight our peer will accept \(\d+\)").unwrap().is_match(err)));
+                       ), true, APIError::ChannelUnavailable { .. }, {});
                assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
-               nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot send value that would put us over the max HTLC value in flight our peer will accept", 1);
        }
 
        // channel reserve is bigger than their_max_htlc_value_in_flight_msat so loop to deplete
@@ -1849,14 +1887,14 @@ fn test_channel_reserve_holding_cell_htlcs() {
                // 3 for the 3 HTLCs that will be sent, 2* and +1 for the fee spike reserve.
                // Also, ensure that each payment has enough to be over the dust limit to
                // ensure it'll be included in each commit tx fee calculation.
-               let commit_tx_fee_all_htlcs = 2*commit_tx_fee_msat(feerate, 3 + 1, opt_anchors);
+               let commit_tx_fee_all_htlcs = 2*commit_tx_fee_msat(feerate, 3 + 1, &channel_type_features);
                let ensure_htlc_amounts_above_dust_buffer = 3 * (stat01.counterparty_dust_limit_msat + 1000);
                if stat01.value_to_self_msat < stat01.channel_reserve_msat + commit_tx_fee_all_htlcs + ensure_htlc_amounts_above_dust_buffer + amt_msat {
                        break;
                }
 
                let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-                       .with_features(nodes[2].node.invoice_features()).with_max_channel_saturation_power_of_half(0);
+                       .with_bolt11_features(nodes[2].node.bolt11_invoice_features()).unwrap().with_max_channel_saturation_power_of_half(0);
                let route = get_route!(nodes[0], payment_params, recv_value_0).unwrap();
                let (payment_preimage, ..) = send_along_route(&nodes[0], route, &[&nodes[1], &nodes[2]], recv_value_0);
                claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
@@ -1886,7 +1924,7 @@ fn test_channel_reserve_holding_cell_htlcs() {
        // the amount of the first of these aforementioned 3 payments. The reason we split into 3 payments
        // is to test the behavior of the holding cell with respect to channel reserve and commit tx fee
        // policy.
-       let commit_tx_fee_2_htlcs = 2*commit_tx_fee_msat(feerate, 2 + 1, opt_anchors);
+       let commit_tx_fee_2_htlcs = 2*commit_tx_fee_msat(feerate, 2 + 1, &channel_type_features);
        let recv_value_1 = (stat01.value_to_self_msat - stat01.channel_reserve_msat - total_fee_msat - commit_tx_fee_2_htlcs)/2;
        let amt_msat_1 = recv_value_1 + total_fee_msat;
 
@@ -1905,16 +1943,17 @@ fn test_channel_reserve_holding_cell_htlcs() {
        // channel reserve test with htlc pending output > 0
        let recv_value_2 = stat01.value_to_self_msat - amt_msat_1 - stat01.channel_reserve_msat - total_fee_msat - commit_tx_fee_2_htlcs;
        {
-               let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_2 + 1);
+               let mut route = route_1.clone();
+               route.paths[0].hops.last_mut().unwrap().fee_msat = recv_value_2 + 1;
+               let (_, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(nodes[2]);
                unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-                       ), true, APIError::ChannelUnavailable { ref err },
-                       assert!(regex::Regex::new(r"Cannot send value that would put our balance under counterparty-announced channel reserve value \(\d+\)").unwrap().is_match(err)));
+                       ), true, APIError::ChannelUnavailable { .. }, {});
                assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
        }
 
        // split the rest to test holding cell
-       let commit_tx_fee_3_htlcs = 2*commit_tx_fee_msat(feerate, 3 + 1, opt_anchors);
+       let commit_tx_fee_3_htlcs = 2*commit_tx_fee_msat(feerate, 3 + 1, &channel_type_features);
        let additional_htlc_cost_msat = commit_tx_fee_3_htlcs - commit_tx_fee_2_htlcs;
        let recv_value_21 = recv_value_2/2 - additional_htlc_cost_msat/2;
        let recv_value_22 = recv_value_2 - recv_value_21 - total_fee_msat - additional_htlc_cost_msat;
@@ -1934,13 +1973,13 @@ fn test_channel_reserve_holding_cell_htlcs() {
 
        // test with outbound holding cell amount > 0
        {
-               let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_22+1);
+               let (mut route, our_payment_hash, _, our_payment_secret) =
+                       get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_22);
+               route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
                unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                                RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-                       ), true, APIError::ChannelUnavailable { ref err },
-                       assert!(regex::Regex::new(r"Cannot send value that would put our balance under counterparty-announced channel reserve value \(\d+\)").unwrap().is_match(err)));
+                       ), true, APIError::ChannelUnavailable { .. }, {});
                assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
-               nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot send value that would put our balance under counterparty-announced channel reserve value", 2);
        }
 
        let (route_22, our_payment_hash_22, our_payment_preimage_22, our_payment_secret_22) = get_route_and_payment_hash!(nodes[0], nodes[2], recv_value_22);
@@ -2033,11 +2072,11 @@ fn test_channel_reserve_holding_cell_htlcs() {
        claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_21);
        claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_22);
 
-       let commit_tx_fee_0_htlcs = 2*commit_tx_fee_msat(feerate, 1, opt_anchors);
+       let commit_tx_fee_0_htlcs = 2*commit_tx_fee_msat(feerate, 1, &channel_type_features);
        let recv_value_3 = commit_tx_fee_2_htlcs - commit_tx_fee_0_htlcs - total_fee_msat;
        send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_3);
 
-       let commit_tx_fee_1_htlc = 2*commit_tx_fee_msat(feerate, 1 + 1, opt_anchors);
+       let commit_tx_fee_1_htlc = 2*commit_tx_fee_msat(feerate, 1 + 1, &channel_type_features);
        let expected_value_to_self = stat01.value_to_self_msat - (recv_value_1 + total_fee_msat) - (recv_value_21 + total_fee_msat) - (recv_value_22 + total_fee_msat) - (recv_value_3 + total_fee_msat);
        let stat0 = get_channel_value_stat!(nodes[0], nodes[1], chan_1.2);
        assert_eq!(stat0.value_to_self_msat, expected_value_to_self);
@@ -2080,8 +2119,8 @@ fn channel_reserve_in_flight_removes() {
        let b_chan_values = get_channel_value_stat!(nodes[1], nodes[0], chan_1.2);
        // Route the first two HTLCs.
        let payment_value_1 = b_chan_values.channel_reserve_msat - b_chan_values.value_to_self_msat - 10000;
-       let (payment_preimage_1, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[1]], payment_value_1);
-       let (payment_preimage_2, payment_hash_2, _) = route_payment(&nodes[0], &[&nodes[1]], 20_000);
+       let (payment_preimage_1, payment_hash_1, ..) = route_payment(&nodes[0], &[&nodes[1]], payment_value_1);
+       let (payment_preimage_2, payment_hash_2, ..) = route_payment(&nodes[0], &[&nodes[1]], 20_000);
 
        // Start routing the third HTLC (this is just used to get everyone in the right state).
        let (route, payment_hash_3, payment_preimage_3, payment_secret_3) = get_route_and_payment_hash!(nodes[0], nodes[1], 100000);
@@ -2112,7 +2151,7 @@ fn channel_reserve_in_flight_removes() {
        nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_removes.commitment_signed);
        check_added_monitors!(nodes[0], 1);
        let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
-       expect_payment_sent_without_paths!(nodes[0], payment_preimage_1);
+       expect_payment_sent(&nodes[0], payment_preimage_1, None, false, false);
 
        nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_1.msgs[0]);
        nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &send_1.commitment_msg);
@@ -2141,7 +2180,7 @@ fn channel_reserve_in_flight_removes() {
        nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_cs.commitment_signed);
        check_added_monitors!(nodes[0], 1);
        let as_raa = get_event_msg!(nodes[0], MessageSendEvent::SendRevokeAndACK, nodes[1].node.get_our_node_id());
-       expect_payment_sent_without_paths!(nodes[0], payment_preimage_2);
+       expect_payment_sent(&nodes[0], payment_preimage_2, None, false, false);
 
        nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_raa);
        check_added_monitors!(nodes[1], 1);
@@ -2234,9 +2273,15 @@ fn channel_monitor_network_test() {
        nodes[1].node.force_close_broadcasting_latest_txn(&chan_1.2, &nodes[0].node.get_our_node_id()).unwrap();
        check_added_monitors!(nodes[1], 1);
        check_closed_broadcast!(nodes[1], true);
+       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 100000);
        {
                let mut node_txn = test_txn_broadcast(&nodes[1], &chan_1, None, HTLCType::NONE);
                assert_eq!(node_txn.len(), 1);
+               mine_transaction(&nodes[1], &node_txn[0]);
+               if nodes[1].connect_style.borrow().updates_best_block_first() {
+                       let _ = nodes[1].tx_broadcaster.txn_broadcast();
+               }
+
                mine_transaction(&nodes[0], &node_txn[0]);
                check_added_monitors!(nodes[0], 1);
                test_txn_broadcast(&nodes[0], &chan_1, Some(node_txn[0].clone()), HTLCType::NONE);
@@ -2244,11 +2289,10 @@ fn channel_monitor_network_test() {
        check_closed_broadcast!(nodes[0], true);
        assert_eq!(nodes[0].node.list_channels().len(), 0);
        assert_eq!(nodes[1].node.list_channels().len(), 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
-       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
 
        // One pending HTLC is discarded by the force-close:
-       let (payment_preimage_1, payment_hash_1, _) = route_payment(&nodes[1], &[&nodes[2], &nodes[3]], 3_000_000);
+       let (payment_preimage_1, payment_hash_1, ..) = route_payment(&nodes[1], &[&nodes[2], &nodes[3]], 3_000_000);
 
        // Simple case of one pending HTLC to HTLC-Timeout (note that the HTLC-Timeout is not
        // broadcasted until we reach the timelock time).
@@ -2266,8 +2310,8 @@ fn channel_monitor_network_test() {
        check_closed_broadcast!(nodes[2], true);
        assert_eq!(nodes[1].node.list_channels().len(), 0);
        assert_eq!(nodes[2].node.list_channels().len(), 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
-       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[2].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
 
        macro_rules! claim_funds {
                ($node: expr, $prev_node: expr, $preimage: expr, $payment_hash: expr) => {
@@ -2311,15 +2355,15 @@ fn channel_monitor_network_test() {
        check_closed_broadcast!(nodes[3], true);
        assert_eq!(nodes[2].node.list_channels().len(), 0);
        assert_eq!(nodes[3].node.list_channels().len(), 1);
-       check_closed_event!(nodes[2], 1, ClosureReason::HolderForceClosed);
-       check_closed_event!(nodes[3], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[2], 1, ClosureReason::HolderForceClosed, [nodes[3].node.get_our_node_id()], 100000);
+       check_closed_event!(nodes[3], 1, ClosureReason::CommitmentTxConfirmed, [nodes[2].node.get_our_node_id()], 100000);
 
        // Drop the ChannelMonitor for the previous channel to avoid it broadcasting transactions and
        // confusing us in the following tests.
        let chan_3_mon = nodes[3].chain_monitor.chain_monitor.remove_monitor(&OutPoint { txid: chan_3.3.txid(), index: 0 });
 
        // One pending HTLC to time out:
-       let (payment_preimage_2, payment_hash_2, _) = route_payment(&nodes[3], &[&nodes[4]], 3_000_000);
+       let (payment_preimage_2, payment_hash_2, ..) = route_payment(&nodes[3], &[&nodes[4]], 3_000_000);
        // CLTV expires at TEST_FINAL_CLTV + 1 (current height) + 1 (added in send_payment for
        // buffer space).
 
@@ -2334,7 +2378,7 @@ fn channel_monitor_network_test() {
                        _ => panic!("Unexpected event"),
                };
                match events[1] {
-                       MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { .. }, node_id } => {
+                       MessageSendEvent::HandleError { action: ErrorAction::DisconnectPeer { .. }, node_id } => {
                                assert_eq!(node_id, nodes[4].node.get_our_node_id());
                        },
                        _ => panic!("Unexpected event"),
@@ -2366,13 +2410,14 @@ fn channel_monitor_network_test() {
                        _ => panic!("Unexpected event"),
                };
                match events[1] {
-                       MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { .. }, node_id } => {
+                       MessageSendEvent::HandleError { action: ErrorAction::DisconnectPeer { .. }, node_id } => {
                                assert_eq!(node_id, nodes[3].node.get_our_node_id());
                        },
                        _ => panic!("Unexpected event"),
                }
                check_added_monitors!(nodes[4], 1);
                test_txn_broadcast(&nodes[4], &chan_4, None, HTLCType::SUCCESS);
+               check_closed_event!(nodes[4], 1, ClosureReason::HolderForceClosed, [nodes[3].node.get_our_node_id()], 100000);
 
                mine_transaction(&nodes[4], &node_txn[0]);
                check_preimage_claim(&nodes[4], &node_txn);
@@ -2384,9 +2429,8 @@ fn channel_monitor_network_test() {
        assert_eq!(nodes[4].node.list_channels().len(), 0);
 
        assert_eq!(nodes[3].chain_monitor.chain_monitor.watch_channel(OutPoint { txid: chan_3.3.txid(), index: 0 }, chan_3_mon),
-               ChannelMonitorUpdateStatus::Completed);
-       check_closed_event!(nodes[3], 1, ClosureReason::CommitmentTxConfirmed);
-       check_closed_event!(nodes[4], 1, ClosureReason::CommitmentTxConfirmed);
+               Ok(ChannelMonitorUpdateStatus::Completed));
+       check_closed_event!(nodes[3], 1, ClosureReason::HolderForceClosed, [nodes[4].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -2434,7 +2478,7 @@ fn test_justice_tx_htlc_timeout() {
                        node_txn.swap_remove(0);
                }
                check_added_monitors!(nodes[1], 1);
-               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
                test_txn_broadcast(&nodes[1], &chan_5, Some(revoked_local_txn[0].clone()), HTLCType::NONE);
 
                mine_transaction(&nodes[0], &revoked_local_txn[0]);
@@ -2442,7 +2486,7 @@ fn test_justice_tx_htlc_timeout() {
                // Verify broadcast of revoked HTLC-timeout
                let node_txn = test_txn_broadcast(&nodes[0], &chan_5, Some(revoked_local_txn[0].clone()), HTLCType::TIMEOUT);
                check_added_monitors!(nodes[0], 1);
-               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
                // Broadcast revoked HTLC-timeout on node 1
                mine_transaction(&nodes[1], &node_txn[1]);
                test_revoked_htlc_claim_txn_broadcast(&nodes[1], node_txn[1].clone(), revoked_local_txn[0].clone());
@@ -2497,11 +2541,11 @@ fn test_justice_tx_htlc_success() {
                test_txn_broadcast(&nodes[0], &chan_6, Some(revoked_local_txn[0].clone()), HTLCType::NONE);
 
                mine_transaction(&nodes[1], &revoked_local_txn[0]);
-               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
                let node_txn = test_txn_broadcast(&nodes[1], &chan_6, Some(revoked_local_txn[0].clone()), HTLCType::SUCCESS);
                check_added_monitors!(nodes[1], 1);
                mine_transaction(&nodes[0], &node_txn[1]);
-               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
                test_revoked_htlc_claim_txn_broadcast(&nodes[0], node_txn[1].clone(), revoked_local_txn[0].clone());
        }
        get_announce_close_broadcast_events(&nodes, 0, 1);
@@ -2529,7 +2573,7 @@ fn revoked_output_claim() {
        // Inform nodes[1] that nodes[0] broadcast a stale tx
        mine_transaction(&nodes[1], &revoked_local_txn[0]);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert_eq!(node_txn.len(), 1); // ChannelMonitor: justice tx against revoked to_local output
 
@@ -2539,9 +2583,75 @@ fn revoked_output_claim() {
        mine_transaction(&nodes[0], &revoked_local_txn[0]);
        get_announce_close_broadcast_events(&nodes, 0, 1);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
+}
+
+#[test]
+fn test_forming_justice_tx_from_monitor_updates() {
+       do_test_forming_justice_tx_from_monitor_updates(true);
+       do_test_forming_justice_tx_from_monitor_updates(false);
+}
+
+fn do_test_forming_justice_tx_from_monitor_updates(broadcast_initial_commitment: bool) {
+       // Simple test to make sure that the justice tx formed in WatchtowerPersister
+       // is properly formed and can be broadcasted/confirmed successfully in the event
+       // that a revoked commitment transaction is broadcasted
+       // (Similar to `revoked_output_claim` test but we get the justice tx + broadcast manually)
+       let chanmon_cfgs = create_chanmon_cfgs(2);
+       let destination_script0 = chanmon_cfgs[0].keys_manager.get_destination_script([0; 32]).unwrap();
+       let destination_script1 = chanmon_cfgs[1].keys_manager.get_destination_script([0; 32]).unwrap();
+       let persisters = vec![WatchtowerPersister::new(destination_script0),
+               WatchtowerPersister::new(destination_script1)];
+       let node_cfgs = create_node_cfgs_with_persisters(2, &chanmon_cfgs, persisters.iter().collect());
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+       let (_, _, channel_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 1);
+       let funding_txo = OutPoint { txid: funding_tx.txid(), index: 0 };
+
+       if !broadcast_initial_commitment {
+               // Send a payment to move the channel forward
+               send_payment(&nodes[0], &vec!(&nodes[1])[..], 5_000_000);
+       }
+
+       // node[0] is gonna to revoke an old state thus node[1] should be able to claim the revoked output.
+       // We'll keep this commitment transaction to broadcast once it's revoked.
+       let revoked_local_txn = get_local_commitment_txn!(nodes[0], channel_id);
+       assert_eq!(revoked_local_txn.len(), 1);
+       let revoked_commitment_tx = &revoked_local_txn[0];
+
+       // Send another payment, now revoking the previous commitment tx
+       send_payment(&nodes[0], &vec!(&nodes[1])[..], 5_000_000);
+
+       let justice_tx = persisters[1].justice_tx(funding_txo, &revoked_commitment_tx.txid()).unwrap();
+       check_spends!(justice_tx, revoked_commitment_tx);
+
+       mine_transactions(&nodes[1], &[revoked_commitment_tx, &justice_tx]);
+       mine_transactions(&nodes[0], &[revoked_commitment_tx, &justice_tx]);
+
+       check_added_monitors!(nodes[1], 1);
+       check_closed_event(&nodes[1], 1, ClosureReason::CommitmentTxConfirmed, false,
+               &[nodes[0].node.get_our_node_id()], 100_000);
+       get_announce_close_broadcast_events(&nodes, 1, 0);
+
+       check_added_monitors!(nodes[0], 1);
+       check_closed_event(&nodes[0], 1, ClosureReason::CommitmentTxConfirmed, false,
+               &[nodes[1].node.get_our_node_id()], 100_000);
+
+       // Check that the justice tx has sent the revoked output value to nodes[1]
+       let monitor = get_monitor!(nodes[1], channel_id);
+       let total_claimable_balance = monitor.get_claimable_balances().iter().fold(0, |sum, balance| {
+               match balance {
+                       channelmonitor::Balance::ClaimableAwaitingConfirmations { amount_satoshis, .. } => sum + amount_satoshis,
+                       _ => panic!("Unexpected balance type"),
+               }
+       });
+       // On the first commitment, node[1]'s balance was below dust so it didn't have an output
+       let node1_channel_balance = if broadcast_initial_commitment { 0 } else { revoked_commitment_tx.output[0].value };
+       let expected_claimable_balance = node1_channel_balance + justice_tx.output[0].value;
+       assert_eq!(total_claimable_balance, expected_claimable_balance);
 }
 
+
 #[test]
 fn claim_htlc_outputs_shared_tx() {
        // Node revoked old state, htlcs haven't time out yet, claim them in shared justice tx
@@ -2558,7 +2668,7 @@ fn claim_htlc_outputs_shared_tx() {
        send_payment(&nodes[0], &[&nodes[1]], 8_000_000);
        // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx
        let payment_preimage_1 = route_payment(&nodes[0], &[&nodes[1]], 3_000_000).0;
-       let (_payment_preimage_2, payment_hash_2, _) = route_payment(&nodes[1], &[&nodes[0]], 3_000_000);
+       let (_payment_preimage_2, payment_hash_2, ..) = route_payment(&nodes[1], &[&nodes[0]], 3_000_000);
 
        // Get the will-be-revoked local txn from node[0]
        let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
@@ -2576,10 +2686,10 @@ fn claim_htlc_outputs_shared_tx() {
        {
                mine_transaction(&nodes[0], &revoked_local_txn[0]);
                check_added_monitors!(nodes[0], 1);
-               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
                mine_transaction(&nodes[1], &revoked_local_txn[0]);
                check_added_monitors!(nodes[1], 1);
-               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
                connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
                assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
 
@@ -2625,7 +2735,7 @@ fn claim_htlc_outputs_single_tx() {
        // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx, but this
        // time as two different claim transactions as we're gonna to timeout htlc with given a high current height
        let payment_preimage_1 = route_payment(&nodes[0], &[&nodes[1]], 3_000_000).0;
-       let (_payment_preimage_2, payment_hash_2, _payment_secret_2) = route_payment(&nodes[1], &[&nodes[0]], 3_000_000);
+       let (_payment_preimage_2, payment_hash_2, ..) = route_payment(&nodes[1], &[&nodes[0]], 3_000_000);
 
        // Get the will-be-revoked local txn from node[0]
        let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
@@ -2638,7 +2748,7 @@ fn claim_htlc_outputs_single_tx() {
                check_added_monitors!(nodes[0], 1);
                confirm_transaction_at(&nodes[1], &revoked_local_txn[0], 100);
                check_added_monitors!(nodes[1], 1);
-               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
                let mut events = nodes[0].node.get_and_clear_pending_events();
                expect_pending_htlcs_forwardable_from_events!(nodes[0], events[0..1], true);
                match events.last().unwrap() {
@@ -2728,8 +2838,8 @@ fn test_htlc_on_chain_success() {
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000);
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000);
 
-       let (our_payment_preimage, payment_hash_1, _payment_secret) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
-       let (our_payment_preimage_2, payment_hash_2, _payment_secret_2) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
+       let (our_payment_preimage, payment_hash_1, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
+       let (our_payment_preimage_2, payment_hash_2, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
 
        // Broadcast legit commitment tx from C on B's chain
        // Broadcast HTLC Success transaction by C on received output from C's commitment tx on B's chain
@@ -2750,7 +2860,7 @@ fn test_htlc_on_chain_success() {
        mine_transaction(&nodes[2], &commitment_tx[0]);
        check_closed_broadcast!(nodes[2], true);
        check_added_monitors!(nodes[2], 1);
-       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelMonitor: 2 (2 * HTLC-Success tx)
        assert_eq!(node_txn.len(), 2);
        check_spends!(node_txn[0], commitment_tx[0]);
@@ -2759,12 +2869,11 @@ fn test_htlc_on_chain_success() {
        assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
        assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
        assert!(node_txn[1].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
-       assert_eq!(node_txn[0].lock_time.0, 0);
-       assert_eq!(node_txn[1].lock_time.0, 0);
+       assert_eq!(node_txn[0].lock_time, LockTime::ZERO);
+       assert_eq!(node_txn[1].lock_time, LockTime::ZERO);
 
        // Verify that B's ChannelManager is able to extract preimage from HTLC Success tx and pass it backward
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-       connect_block(&nodes[1], &Block { header, txdata: vec![commitment_tx[0].clone(), node_txn[0].clone(), node_txn[1].clone()]});
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![commitment_tx[0].clone(), node_txn[0].clone(), node_txn[1].clone()]));
        connect_blocks(&nodes[1], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
        {
                let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
@@ -2780,8 +2889,10 @@ fn test_htlc_on_chain_success() {
        }
        let chan_id = Some(chan_1.2);
        match forwarded_events[1] {
-               Event::PaymentForwarded { fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id, outbound_amount_forwarded_msat } => {
-                       assert_eq!(fee_earned_msat, Some(1000));
+               Event::PaymentForwarded { total_fee_earned_msat, prev_channel_id, claim_from_onchain_tx,
+                       next_channel_id, outbound_amount_forwarded_msat
+               } => {
+                       assert_eq!(total_fee_earned_msat, Some(1000));
                        assert_eq!(prev_channel_id, chan_id);
                        assert_eq!(claim_from_onchain_tx, true);
                        assert_eq!(next_channel_id, Some(chan_2.2));
@@ -2790,8 +2901,10 @@ fn test_htlc_on_chain_success() {
                _ => panic!()
        }
        match forwarded_events[2] {
-               Event::PaymentForwarded { fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id, outbound_amount_forwarded_msat } => {
-                       assert_eq!(fee_earned_msat, Some(1000));
+               Event::PaymentForwarded { total_fee_earned_msat, prev_channel_id, claim_from_onchain_tx,
+                       next_channel_id, outbound_amount_forwarded_msat
+               } => {
+                       assert_eq!(total_fee_earned_msat, Some(1000));
                        assert_eq!(prev_channel_id, chan_id);
                        assert_eq!(claim_from_onchain_tx, true);
                        assert_eq!(next_channel_id, Some(chan_2.2));
@@ -2813,7 +2926,7 @@ fn test_htlc_on_chain_success() {
        let nodes_0_event = remove_first_msg_event_to_node(&nodes[0].node.get_our_node_id(), &mut events);
 
        match nodes_2_event {
-               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { .. }, node_id: _ } => {},
+               MessageSendEvent::HandleError { action: ErrorAction::DisconnectPeer { .. }, node_id: _ } => {},
                _ => panic!("Unexpected event"),
        }
 
@@ -2842,8 +2955,8 @@ fn test_htlc_on_chain_success() {
                        // Node[0]: 2 * HTLC-timeout tx
                        check_spends!(node_txn[0], $commitment_tx);
                        check_spends!(node_txn[1], $commitment_tx);
-                       assert_ne!(node_txn[0].lock_time.0, 0);
-                       assert_ne!(node_txn[1].lock_time.0, 0);
+                       assert_ne!(node_txn[0].lock_time, LockTime::ZERO);
+                       assert_ne!(node_txn[1].lock_time, LockTime::ZERO);
                        if $htlc_offered {
                                assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
                                assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
@@ -2868,7 +2981,7 @@ fn test_htlc_on_chain_success() {
        mine_transaction(&nodes[1], &node_a_commitment_tx[0]);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert!(node_txn.len() == 1 || node_txn.len() == 3); // HTLC-Success, 2* RBF bumps of above HTLC txn
        let commitment_spend =
@@ -2894,14 +3007,13 @@ fn test_htlc_on_chain_success() {
        assert_eq!(commitment_spend.input.len(), 2);
        assert_eq!(commitment_spend.input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
        assert_eq!(commitment_spend.input[1].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
-       assert_eq!(commitment_spend.lock_time.0, nodes[1].best_block_info().1);
+       assert_eq!(commitment_spend.lock_time.to_consensus_u32(), nodes[1].best_block_info().1);
        assert!(commitment_spend.output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
        // We don't bother to check that B can claim the HTLC output on its commitment tx here as
        // we already checked the same situation with A.
 
        // Verify that A's ChannelManager is able to extract preimage from preimage tx and generate PaymentSent
-       let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-       connect_block(&nodes[0], &Block { header, txdata: vec![node_a_commitment_tx[0].clone(), commitment_spend.clone()] });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![node_a_commitment_tx[0].clone(), commitment_spend.clone()]));
        connect_blocks(&nodes[0], TEST_FINAL_CLTV + MIN_CLTV_EXPIRY_DELTA as u32); // Confirm blocks until the HTLC expires
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
@@ -2952,7 +3064,7 @@ fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) {
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000);
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000);
 
-       let (_payment_preimage, payment_hash, _payment_secret) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000);
+       let (_payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000);
 
        // Broadcast legit commitment tx from C on B's chain
        let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2);
@@ -2977,14 +3089,15 @@ fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) {
        mine_transaction(&nodes[2], &commitment_tx[0]);
        check_closed_broadcast!(nodes[2], true);
        check_added_monitors!(nodes[2], 1);
-       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert_eq!(node_txn.len(), 0);
 
        // Broadcast timeout transaction by B on received output from C's commitment tx on B's chain
        // Verify that B's ChannelManager is able to detect that HTLC is timeout by its own tx and react backward in consequence
        mine_transaction(&nodes[1], &commitment_tx[0]);
-       check_closed_event(&nodes[1], 1, ClosureReason::CommitmentTxConfirmed, false);
+       check_closed_event!(&nodes[1], 1, ClosureReason::CommitmentTxConfirmed, false
+               , [nodes[2].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], 200 - nodes[2].best_block_info().1);
        let timeout_tx = {
                let mut txn = nodes[1].tx_broadcaster.txn_broadcast();
@@ -3028,7 +3141,7 @@ fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) {
 
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // 1 timeout tx
        assert_eq!(node_txn.len(), 1);
        check_spends!(node_txn[0], commitment_tx[0]);
@@ -3056,16 +3169,16 @@ fn test_simple_commitment_revoked_fail_backward() {
        create_announced_chan_between_nodes(&nodes, 0, 1);
        let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
 
-       let (payment_preimage, _payment_hash, _payment_secret) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
+       let (payment_preimage, _payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
        // Get the will-be-revoked local txn from nodes[2]
        let revoked_local_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
        // Revoke the old state
        claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
 
-       let (_, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
+       let (_, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
 
        mine_transaction(&nodes[1], &revoked_local_txn[0]);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[2].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
        check_added_monitors!(nodes[1], 1);
        check_closed_broadcast!(nodes[1], true);
@@ -3115,7 +3228,7 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use
        create_announced_chan_between_nodes(&nodes, 0, 1);
        let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2);
 
-       let (payment_preimage, _payment_hash, _payment_secret) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], if no_to_remote { 10_000 } else { 3_000_000 });
+       let (payment_preimage, _payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], if no_to_remote { 10_000 } else { 3_000_000 });
        // Get the will-be-revoked local txn from nodes[2]
        let revoked_local_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
        assert_eq!(revoked_local_txn[0].output.len(), if no_to_remote { 1 } else { 2 });
@@ -3126,12 +3239,12 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use
                // The dust limit applied to HTLC outputs considers the fee of the HTLC transaction as
                // well, so HTLCs at exactly the dust limit will not be included in commitment txn.
                nodes[2].node.per_peer_state.read().unwrap().get(&nodes[1].node.get_our_node_id())
-                       .unwrap().lock().unwrap().channel_by_id.get(&chan_2.2).unwrap().holder_dust_limit_satoshis * 1000
+                       .unwrap().lock().unwrap().channel_by_id.get(&chan_2.2).unwrap().context().holder_dust_limit_satoshis * 1000
        } else { 3000000 };
 
-       let (_, first_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
-       let (_, second_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
-       let (_, third_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
+       let (_, first_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
+       let (_, second_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
+       let (_, third_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value);
 
        nodes[2].node.fail_htlc_backwards(&first_payment_hash);
        expect_pending_htlcs_forwardable_and_htlc_handling_failed!(nodes[2], vec![HTLCDestination::FailedPayment { payment_hash: first_payment_hash }]);
@@ -3219,22 +3332,18 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use
 
        let events = nodes[1].node.get_and_clear_pending_events();
        assert_eq!(events.len(), if deliver_bs_raa { 3 + nodes.len() - 1 } else { 4 + nodes.len() });
-       match events[0] {
-               Event::ChannelClosed { reason: ClosureReason::CommitmentTxConfirmed, .. } => { },
-               _ => panic!("Unexepected event"),
-       }
-       match events[1] {
-               Event::PaymentPathFailed { ref payment_hash, .. } => {
-                       assert_eq!(*payment_hash, fourth_payment_hash);
-               },
-               _ => panic!("Unexpected event"),
-       }
-       match events[2] {
-               Event::PaymentFailed { ref payment_hash, .. } => {
-                       assert_eq!(*payment_hash, fourth_payment_hash);
-               },
-               _ => panic!("Unexpected event"),
-       }
+       assert!(events.iter().any(|ev| matches!(
+               ev,
+               Event::ChannelClosed { reason: ClosureReason::CommitmentTxConfirmed, .. }
+       )));
+       assert!(events.iter().any(|ev| matches!(
+               ev,
+               Event::PaymentPathFailed { ref payment_hash, .. } if *payment_hash == fourth_payment_hash
+       )));
+       assert!(events.iter().any(|ev| matches!(
+               ev,
+               Event::PaymentFailed { ref payment_hash, .. } if *payment_hash == fourth_payment_hash
+       )));
 
        nodes[1].node.process_pending_htlc_forwards();
        check_added_monitors!(nodes[1], 1);
@@ -3258,7 +3367,7 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use
 
        let nodes_2_event = remove_first_msg_event_to_node(&nodes[2].node.get_our_node_id(), &mut events);
        match nodes_2_event {
-               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { msg: msgs::ErrorMessage { channel_id, ref data } }, node_id: _ } => {
+               MessageSendEvent::HandleError { action: ErrorAction::DisconnectPeer { msg: Some(msgs::ErrorMessage { channel_id, ref data }) }, node_id: _ } => {
                        assert_eq!(channel_id, chan_2.2);
                        assert_eq!(data.as_str(), "Channel closed because commitment or closing transaction was confirmed on chain.");
                },
@@ -3398,7 +3507,7 @@ 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 {
@@ -3408,6 +3517,8 @@ fn fail_backward_pending_htlc_upon_channel_failure() {
                        payment_hash,
                        cltv_expiry,
                        onion_routing_packet,
+                       skimmed_fee_msat: None,
+                       blinding_point: None,
                };
                nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_htlc);
        }
@@ -3450,28 +3561,29 @@ fn test_htlc_ignore_latest_remote_commitment() {
                // connect_style.
                return;
        }
-       create_announced_chan_between_nodes(&nodes, 0, 1);
+       let funding_tx = create_announced_chan_between_nodes(&nodes, 0, 1).3;
 
        route_payment(&nodes[0], &[&nodes[1]], 10000000);
        nodes[0].node.force_close_broadcasting_latest_txn(&nodes[0].node.list_channels()[0].channel_id, &nodes[1].node.get_our_node_id()).unwrap();
        connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed);
+       check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
 
-       let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
-       assert_eq!(node_txn.len(), 3);
-       assert_eq!(node_txn[0].txid(), node_txn[1].txid());
+       let node_txn = nodes[0].tx_broadcaster.unique_txn_broadcast();
+       assert_eq!(node_txn.len(), 2);
+       check_spends!(node_txn[0], funding_tx);
+       check_spends!(node_txn[1], node_txn[0]);
 
-       let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[1].clone()]});
+       let block = create_dummy_block(nodes[1].best_block_hash(), 42, vec![node_txn[0].clone()]);
+       connect_block(&nodes[1], &block);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
 
        // Duplicate the connect_block call since this may happen due to other listeners
        // registering new transactions
-       connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[2].clone()]});
+       connect_block(&nodes[1], &block);
 }
 
 #[test]
@@ -3519,8 +3631,8 @@ fn test_force_close_fail_back() {
        nodes[2].node.force_close_broadcasting_latest_txn(&payment_event.commitment_msg.channel_id, &nodes[1].node.get_our_node_id()).unwrap();
        check_closed_broadcast!(nodes[2], true);
        check_added_monitors!(nodes[2], 1);
-       check_closed_event!(nodes[2], 1, ClosureReason::HolderForceClosed);
-       let tx = {
+       check_closed_event!(nodes[2], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+       let commitment_tx = {
                let mut node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap();
                // Note that we don't bother broadcasting the HTLC-Success transaction here as we don't
                // have a use for it unless nodes[2] learns the preimage somehow, the funds will go
@@ -3529,27 +3641,28 @@ fn test_force_close_fail_back() {
                node_txn.remove(0)
        };
 
-       mine_transaction(&nodes[1], &tx);
+       mine_transaction(&nodes[1], &commitment_tx);
 
        // Note no UpdateHTLCs event here from nodes[1] to nodes[0]!
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[2].node.get_our_node_id()], 100000);
 
        // Now check that if we add the preimage to ChannelMonitor it broadcasts our HTLC-Success..
        {
                get_monitor!(nodes[2], payment_event.commitment_msg.channel_id)
                        .provide_payment_preimage(&our_payment_hash, &our_payment_preimage, &node_cfgs[2].tx_broadcaster, &LowerBoundedFeeEstimator::new(node_cfgs[2].fee_estimator), &node_cfgs[2].logger);
        }
-       mine_transaction(&nodes[2], &tx);
-       let node_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap();
-       assert_eq!(node_txn.len(), 1);
-       assert_eq!(node_txn[0].input.len(), 1);
-       assert_eq!(node_txn[0].input[0].previous_output.txid, tx.txid());
-       assert_eq!(node_txn[0].lock_time.0, 0); // Must be an HTLC-Success
-       assert_eq!(node_txn[0].input[0].witness.len(), 5); // Must be an HTLC-Success
+       mine_transaction(&nodes[2], &commitment_tx);
+       let mut node_txn = nodes[2].tx_broadcaster.txn_broadcast();
+       assert_eq!(node_txn.len(), if nodes[2].connect_style.borrow().updates_best_block_first() { 2 } else { 1 });
+       let htlc_tx = node_txn.pop().unwrap();
+       assert_eq!(htlc_tx.input.len(), 1);
+       assert_eq!(htlc_tx.input[0].previous_output.txid, commitment_tx.txid());
+       assert_eq!(htlc_tx.lock_time, LockTime::ZERO); // Must be an HTLC-Success
+       assert_eq!(htlc_tx.input[0].witness.len(), 5); // Must be an HTLC-Success
 
-       check_spends!(node_txn[0], tx);
+       check_spends!(htlc_tx, commitment_tx);
 }
 
 #[test]
@@ -3565,19 +3678,21 @@ fn test_dup_events_on_peer_disconnect() {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 1_000_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 1_000_000);
 
        nodes[1].node.claim_funds(payment_preimage);
        expect_payment_claimed!(nodes[1], payment_hash, 1_000_000);
        check_added_monitors!(nodes[1], 1);
        let claim_msgs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &claim_msgs.update_fulfill_htlcs[0]);
-       expect_payment_sent_without_paths!(nodes[0], payment_preimage);
+       expect_payment_sent(&nodes[0], payment_preimage, None, false, false);
 
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
 
-       reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (0, 0), (false, false));
+       let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+       reconnect_args.pending_htlc_claims.0 = 1;
+       reconnect_nodes(reconnect_args);
        expect_payment_path_successful!(nodes[0]);
 }
 
@@ -3592,7 +3707,7 @@ fn test_peer_disconnected_before_funding_broadcasted() {
 
        // Open a channel between `nodes[0]` and `nodes[1]`, for which the funding transaction is never
        // broadcasted, even though it's created by `nodes[0]`.
-       let expected_temporary_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
+       let expected_temporary_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None, None).unwrap();
        let open_channel = 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(), &open_channel);
        let accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
@@ -3618,8 +3733,10 @@ fn test_peer_disconnected_before_funding_broadcasted() {
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
 
-       check_closed_event!(nodes[0], 1, ClosureReason::DisconnectedPeer);
-       check_closed_event!(nodes[1], 1, ClosureReason::DisconnectedPeer);
+       check_closed_event!(&nodes[0], 2, ClosureReason::DisconnectedPeer, true
+               , [nodes[1].node.get_our_node_id()], 1000000);
+       check_closed_event!(&nodes[1], 1, ClosureReason::DisconnectedPeer, false
+               , [nodes[0].node.get_our_node_id()], 1000000);
 }
 
 #[test]
@@ -3634,7 +3751,9 @@ fn test_simple_peer_disconnect() {
 
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
-       reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+       let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+       reconnect_args.send_channel_ready = (true, true);
+       reconnect_nodes(reconnect_args);
 
        let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0;
        let payment_hash_2 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1;
@@ -3643,9 +3762,9 @@ fn test_simple_peer_disconnect() {
 
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
-       reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+       reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[1]));
 
-       let (payment_preimage_3, payment_hash_3, _) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000);
+       let (payment_preimage_3, payment_hash_3, ..) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000);
        let payment_preimage_4 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0;
        let payment_hash_5 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1;
        let payment_hash_6 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1;
@@ -3656,7 +3775,10 @@ fn test_simple_peer_disconnect() {
        claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], true, payment_preimage_3);
        fail_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], true, payment_hash_5);
 
-       reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (1, 0), (1, 0), (false, false));
+       let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+       reconnect_args.pending_cell_htlc_fails.0 = 1;
+       reconnect_args.pending_cell_htlc_claims.0 = 1;
+       reconnect_nodes(reconnect_args);
        {
                let events = nodes[0].node.get_and_clear_pending_events();
                assert_eq!(events.len(), 4);
@@ -3685,6 +3807,7 @@ fn test_simple_peer_disconnect() {
                        _ => panic!("Unexpected event"),
                }
        }
+       check_added_monitors(&nodes[0], 1);
 
        claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_4);
        fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_6);
@@ -3768,19 +3891,29 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8, simulate_broken
                }
                // Even if the channel_ready messages get exchanged, as long as nothing further was
                // received on either side, both sides will need to resend them.
-               reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 1), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.send_channel_ready = (true, true);
+               reconnect_args.pending_htlc_adds.1 = 1;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 3 {
                // nodes[0] still wants its RAA + commitment_signed
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (-1, 0), (0, 0), (0, 0), (0, 0), (0, 0), (true, false));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_responding_commitment_signed.0 = true;
+               reconnect_args.pending_raa.0 = true;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 4 {
                // nodes[0] still wants its commitment_signed
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (-1, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_responding_commitment_signed.0 = true;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 5 {
                // nodes[1] still wants its final RAA
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, true));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_raa.1 = true;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 6 {
                // Everything was delivered...
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+               reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[1]));
        }
 
        let events_1 = nodes[1].node.get_and_clear_pending_events();
@@ -3804,7 +3937,7 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8, simulate_broken
 
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
-       reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+       reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[1]));
 
        nodes[1].node.process_pending_htlc_forwards();
 
@@ -3888,7 +4021,9 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8, simulate_broken
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
        if messages_delivered < 2 {
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (0, 0), (false, false));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_htlc_claims.0 = 1;
+               reconnect_nodes(reconnect_args);
                if messages_delivered < 1 {
                        expect_payment_sent!(nodes[0], payment_preimage_1);
                } else {
@@ -3896,16 +4031,23 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8, simulate_broken
                }
        } else if messages_delivered == 2 {
                // nodes[0] still wants its RAA + commitment_signed
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (0, 0), (false, true));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_responding_commitment_signed.1 = true;
+               reconnect_args.pending_raa.1 = true;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 3 {
                // nodes[0] still wants its commitment_signed
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_responding_commitment_signed.1 = true;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 4 {
                // nodes[1] still wants its final RAA
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (true, false));
+               let mut reconnect_args = ReconnectArgs::new(&nodes[0], &nodes[1]);
+               reconnect_args.pending_raa.0 = true;
+               reconnect_nodes(reconnect_args);
        } else if messages_delivered == 5 {
                // Everything was delivered...
-               reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+               reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[1]));
        }
 
        if messages_delivered == 1 || messages_delivered == 2 {
@@ -3915,7 +4057,7 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8, simulate_broken
                nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
                nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
        }
-       reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (0, 0), (false, false));
+       reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[1]));
 
        if messages_delivered > 2 {
                expect_payment_path_successful!(nodes[0]);
@@ -3969,6 +4111,73 @@ fn test_channel_ready_without_best_block_updated() {
        nodes[1].node.handle_channel_ready(&nodes[0].node.get_our_node_id(), &as_channel_ready);
 }
 
+#[test]
+fn test_channel_monitor_skipping_block_when_channel_manager_is_leading() {
+       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, None]);
+       let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       // Let channel_manager get ahead of chain_monitor by 1 block.
+       // This is to emulate race-condition where newly added channel_monitor skips processing 1 block,
+       // in case where client calls block_connect on channel_manager first and then on chain_monitor.
+       let height_1 = nodes[0].best_block_info().1 + 1;
+       let mut block_1 = create_dummy_block(nodes[0].best_block_hash(), height_1, Vec::new());
+
+       nodes[0].blocks.lock().unwrap().push((block_1.clone(), height_1));
+       nodes[0].node.block_connected(&block_1, height_1);
+
+       // Create channel, and it gets added to chain_monitor in funding_created.
+       let funding_tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 1_000_000, 0);
+
+       // Now, newly added channel_monitor in chain_monitor hasn't processed block_1,
+       // but it's best_block is block_1, since that was populated by channel_manager, and channel_manager
+       // was running ahead of chain_monitor at the time of funding_created.
+       // Later on, subsequent blocks are connected to both channel_manager and chain_monitor.
+       // Hence, this channel's channel_monitor skipped block_1, directly tries to process subsequent blocks.
+       confirm_transaction_at(&nodes[0], &funding_tx, nodes[0].best_block_info().1 + 1);
+       connect_blocks(&nodes[0], CHAN_CONFIRM_DEPTH);
+
+       // Ensure nodes[0] generates a channel_ready after the transactions_confirmed
+       let as_channel_ready = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReady, nodes[1].node.get_our_node_id());
+       nodes[1].node.handle_channel_ready(&nodes[0].node.get_our_node_id(), &as_channel_ready);
+}
+
+#[test]
+fn test_channel_monitor_skipping_block_when_channel_manager_is_lagging() {
+       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, None]);
+       let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       // Let chain_monitor get ahead of channel_manager by 1 block.
+       // This is to emulate race-condition where newly added channel_monitor skips processing 1 block,
+       // in case where client calls block_connect on chain_monitor first and then on channel_manager.
+       let height_1 = nodes[0].best_block_info().1 + 1;
+       let mut block_1 = create_dummy_block(nodes[0].best_block_hash(), height_1, Vec::new());
+
+       nodes[0].blocks.lock().unwrap().push((block_1.clone(), height_1));
+       nodes[0].chain_monitor.chain_monitor.block_connected(&block_1, height_1);
+
+       // Create channel, and it gets added to chain_monitor in funding_created.
+       let funding_tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 1_000_000, 0);
+
+       // channel_manager can't really skip block_1, it should get it eventually.
+       nodes[0].node.block_connected(&block_1, height_1);
+
+       // Now, newly added channel_monitor in chain_monitor hasn't processed block_1, it's best_block is
+       // the block before block_1, since that was populated by channel_manager, and channel_manager was
+       // running behind at the time of funding_created.
+       // Later on, subsequent blocks are connected to both channel_manager and chain_monitor.
+       // Hence, this channel's channel_monitor skipped block_1, directly tries to process subsequent blocks.
+       confirm_transaction_at(&nodes[0], &funding_tx, nodes[0].best_block_info().1 + 1);
+       connect_blocks(&nodes[0], CHAN_CONFIRM_DEPTH);
+
+       // Ensure nodes[0] generates a channel_ready after the transactions_confirmed
+       let as_channel_ready = get_event_msg!(nodes[0], MessageSendEvent::SendChannelReady, nodes[1].node.get_our_node_id());
+       nodes[1].node.handle_channel_ready(&nodes[0].node.get_our_node_id(), &as_channel_ready);
+}
+
 #[test]
 fn test_drop_messages_peer_disconnect_dual_htlc() {
        // Test that we can handle reconnecting when both sides of a channel have pending
@@ -3979,7 +4188,7 @@ fn test_drop_messages_peer_disconnect_dual_htlc() {
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (payment_preimage_1, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1_000_000);
+       let (payment_preimage_1, payment_hash_1, ..) = route_payment(&nodes[0], &[&nodes[1]], 1_000_000);
 
        // Now try to send a second payment which will fail to send
        let (route, payment_hash_2, payment_preimage_2, payment_secret_2) = get_route_and_payment_hash!(nodes[0], nodes[1], 1000000);
@@ -4031,10 +4240,14 @@ 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);
 
@@ -4152,10 +4365,7 @@ fn do_test_htlc_timeout(send_partial_mpp: bool) {
                route_payment(&nodes[0], &[&nodes[1]], 100000).1
        };
 
-       let mut block = Block {
-               header: BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-               txdata: vec![],
-       };
+       let mut block = create_dummy_block(nodes[0].best_block_hash(), 42, Vec::new());
        connect_block(&nodes[0], &block);
        connect_block(&nodes[1], &block);
        let block_count = TEST_FINAL_CLTV + CHAN_CONFIRM_DEPTH + 2 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS;
@@ -4261,9 +4471,9 @@ macro_rules! check_spendable_outputs {
                        let secp_ctx = Secp256k1::new();
                        for event in events.drain(..) {
                                match event {
-                                       Event::SpendableOutputs { mut outputs } => {
+                                       Event::SpendableOutputs { mut outputs, channel_id: _ } => {
                                                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);
                                                }
                                        },
@@ -4271,7 +4481,7 @@ 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);
                                }
                        }
@@ -4292,7 +4502,7 @@ fn test_claim_sizeable_push_msat() {
        nodes[1].node.force_close_broadcasting_latest_txn(&chan.2, &nodes[0].node.get_our_node_id()).unwrap();
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
+       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 100000);
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert_eq!(node_txn.len(), 1);
        check_spends!(node_txn[0], chan.3);
@@ -4321,7 +4531,7 @@ fn test_claim_on_remote_sizeable_push_msat() {
        nodes[0].node.force_close_broadcasting_latest_txn(&chan.2, &nodes[1].node.get_our_node_id()).unwrap();
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed);
+       check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
 
        let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
        assert_eq!(node_txn.len(), 1);
@@ -4331,7 +4541,7 @@ fn test_claim_on_remote_sizeable_push_msat() {
        mine_transaction(&nodes[1], &node_txn[0]);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
 
        let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager);
@@ -4359,7 +4569,7 @@ fn test_claim_on_remote_revoked_sizeable_push_msat() {
        mine_transaction(&nodes[1], &revoked_local_txn[0]);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
 
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        mine_transaction(&nodes[1], &node_txn[0]);
@@ -4382,7 +4592,7 @@ fn test_static_spendable_outputs_preimage_tx() {
        // Create some initial channels
        let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 3_000_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 3_000_000);
 
        let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
        assert_eq!(commitment_tx[0].input.len(), 1);
@@ -4411,7 +4621,7 @@ fn test_static_spendable_outputs_preimage_tx() {
        assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
 
        mine_transaction(&nodes[1], &node_txn[0]);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
 
        let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager);
@@ -4432,7 +4642,7 @@ fn test_static_spendable_outputs_timeout_tx() {
        // Rebalance the network a bit by relaying one payment through all the channels ...
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
 
-       let (_, our_payment_hash, _) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000);
+       let (_, our_payment_hash, ..) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000);
 
        let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
        assert_eq!(commitment_tx[0].input.len(), 1);
@@ -4455,7 +4665,7 @@ fn test_static_spendable_outputs_timeout_tx() {
        assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
 
        mine_transaction(&nodes[1], &node_txn[0]);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
        expect_payment_failed!(nodes[1], our_payment_hash, false);
 
@@ -4486,7 +4696,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() {
        mine_transaction(&nodes[1], &revoked_local_txn[0]);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
 
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert_eq!(node_txn.len(), 1);
@@ -4523,7 +4733,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() {
        mine_transaction(&nodes[0], &revoked_local_txn[0]);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[0], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
 
        let revoked_htlc_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
@@ -4531,14 +4741,13 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() {
        assert_eq!(revoked_htlc_txn[0].input.len(), 1);
        assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
        check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]);
-       assert_ne!(revoked_htlc_txn[0].lock_time.0, 0); // HTLC-Timeout
+       assert_ne!(revoked_htlc_txn[0].lock_time, LockTime::ZERO); // HTLC-Timeout
 
        // B will generate justice tx from A's revoked commitment/HTLC tx
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] });
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()]));
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
 
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert_eq!(node_txn.len(), 2); // ChannelMonitor: bogus justice tx, justice tx on revoked outputs
@@ -4592,7 +4801,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() {
        mine_transaction(&nodes[1], &revoked_local_txn[0]);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        let revoked_htlc_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
 
        assert_eq!(revoked_htlc_txn.len(), 1);
@@ -4605,11 +4814,10 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() {
        assert_eq!(revoked_local_txn[0].output[unspent_local_txn_output].script_pubkey.len(), 2 + 20); // P2WPKH
 
        // A will generate justice tx from B's revoked commitment/HTLC tx
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()]));
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
 
        let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        assert_eq!(node_txn.len(), 2); // ChannelMonitor: justice tx on revoked commitment, justice tx on revoked HTLC-success
@@ -4674,7 +4882,7 @@ fn test_onchain_to_onchain_claim() {
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000);
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000);
 
-       let (payment_preimage, payment_hash, _payment_secret) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
        let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2);
        check_spends!(commitment_tx[0], chan_2.3);
        nodes[2].node.claim_funds(payment_preimage);
@@ -4689,18 +4897,17 @@ fn test_onchain_to_onchain_claim() {
        mine_transaction(&nodes[2], &commitment_tx[0]);
        check_closed_broadcast!(nodes[2], true);
        check_added_monitors!(nodes[2], 1);
-       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
 
        let c_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelMonitor: 1 (HTLC-Success tx)
        assert_eq!(c_txn.len(), 1);
        check_spends!(c_txn[0], commitment_tx[0]);
        assert_eq!(c_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
        assert!(c_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output
-       assert_eq!(c_txn[0].lock_time.0, 0); // Success tx
+       assert_eq!(c_txn[0].lock_time, LockTime::ZERO); // Success tx
 
        // So we broadcast C's commitment tx and HTLC-Success on B's chain, we should successfully be able to extract preimage and update downstream monitor
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-       connect_block(&nodes[1], &Block { header, txdata: vec![commitment_tx[0].clone(), c_txn[0].clone()]});
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![commitment_tx[0].clone(), c_txn[0].clone()]));
        check_added_monitors!(nodes[1], 1);
        let events = nodes[1].node.get_and_clear_pending_events();
        assert_eq!(events.len(), 2);
@@ -4709,8 +4916,10 @@ fn test_onchain_to_onchain_claim() {
                _ => panic!("Unexpected event"),
        }
        match events[1] {
-               Event::PaymentForwarded { fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id, outbound_amount_forwarded_msat } => {
-                       assert_eq!(fee_earned_msat, Some(1000));
+               Event::PaymentForwarded { total_fee_earned_msat, prev_channel_id, claim_from_onchain_tx,
+                       next_channel_id, outbound_amount_forwarded_msat
+               } => {
+                       assert_eq!(total_fee_earned_msat, Some(1000));
                        assert_eq!(prev_channel_id, Some(chan_1.2));
                        assert_eq!(claim_from_onchain_tx, true);
                        assert_eq!(next_channel_id, Some(chan_2.2));
@@ -4725,7 +4934,7 @@ fn test_onchain_to_onchain_claim() {
        let nodes_0_event = remove_first_msg_event_to_node(&nodes[0].node.get_our_node_id(), &mut msg_events);
 
        match nodes_2_event {
-               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { .. }, node_id: _ } => {},
+               MessageSendEvent::HandleError { action: ErrorAction::DisconnectPeer { .. }, node_id: _ } => {},
                _ => panic!("Unexpected event"),
        }
 
@@ -4749,14 +4958,14 @@ fn test_onchain_to_onchain_claim() {
        // Broadcast A's commitment tx on B's chain to see if we are able to claim inbound HTLC with our HTLC-Success tx
        let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2);
        mine_transaction(&nodes[1], &commitment_tx[0]);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        let b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
        // ChannelMonitor: HTLC-Success tx
        assert_eq!(b_txn.len(), 1);
        check_spends!(b_txn[0], commitment_tx[0]);
        assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
        assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
-       assert_eq!(b_txn[0].lock_time.0, nodes[1].best_block_info().1); // Success tx
+       assert_eq!(b_txn[0].lock_time.to_consensus_u32(), nodes[1].best_block_info().1); // Success tx
 
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
@@ -4788,14 +4997,14 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
        connect_blocks(&nodes[2], node_max_height - nodes[2].best_block_info().1);
        connect_blocks(&nodes[3], node_max_height - nodes[3].best_block_info().1);
 
-       let (our_payment_preimage, duplicate_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 900_000);
+       let (our_payment_preimage, duplicate_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 900_000);
 
        let payment_secret = nodes[3].node.create_inbound_payment_for_hash(duplicate_payment_hash, None, 7200, None).unwrap();
        // We reduce the final CLTV here by a somewhat arbitrary constant to keep it under the one-byte
        // script push size limit so that the below script length checks match
        // ACCEPTED_HTLC_SCRIPT_WEIGHT.
        let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV - 40)
-               .with_features(nodes[3].node.invoice_features());
+               .with_bolt11_features(nodes[3].node.bolt11_invoice_features()).unwrap();
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[3], payment_params, 800_000);
        send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[2], &nodes[3]]], 800_000, duplicate_payment_hash, payment_secret);
 
@@ -4806,7 +5015,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
        mine_transaction(&nodes[1], &commitment_txn[0]);
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[2].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], TEST_FINAL_CLTV - 40 + MIN_CLTV_EXPIRY_DELTA as u32); // Confirm blocks until the HTLC expires
 
        let htlc_timeout_tx;
@@ -4853,7 +5062,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
 
        mine_transaction(&nodes[2], &commitment_txn[0]);
        check_added_monitors!(nodes[2], 2);
-       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        let events = nodes[2].node.get_and_clear_pending_msg_events();
        match events[0] {
                MessageSendEvent::UpdateHTLCs { .. } => {},
@@ -4905,7 +5114,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
 
        nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
        commitment_signed_dance!(nodes[0], nodes[1], &updates.commitment_signed, false);
-       expect_payment_sent(&nodes[0], our_payment_preimage, None, true);
+       expect_payment_sent(&nodes[0], our_payment_preimage, None, true, true);
 }
 
 #[test]
@@ -4918,7 +5127,7 @@ fn test_dynamic_spendable_outputs_local_htlc_success_tx() {
        // Create some initial channels
        let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 9_000_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 9_000_000);
        let local_txn = get_local_commitment_txn!(nodes[1], chan_1.2);
        assert_eq!(local_txn.len(), 1);
        assert_eq!(local_txn[0].input.len(), 1);
@@ -4931,7 +5140,7 @@ fn test_dynamic_spendable_outputs_local_htlc_success_tx() {
 
        mine_transaction(&nodes[1], &local_txn[0]);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
        let events = nodes[1].node.get_and_clear_pending_msg_events();
        match events[0] {
                MessageSendEvent::UpdateHTLCs { .. } => {},
@@ -4996,20 +5205,20 @@ fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, anno
        assert_eq!(get_local_commitment_txn!(nodes[3], chan_2_3.2)[0].output.len(), 2);
 
        let ds_dust_limit = nodes[3].node.per_peer_state.read().unwrap().get(&nodes[2].node.get_our_node_id())
-               .unwrap().lock().unwrap().channel_by_id.get(&chan_2_3.2).unwrap().holder_dust_limit_satoshis;
+               .unwrap().lock().unwrap().channel_by_id.get(&chan_2_3.2).unwrap().context().holder_dust_limit_satoshis;
        // 0th HTLC:
-       let (_, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
+       let (_, payment_hash_1, ..) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
        // 1st HTLC:
-       let (_, payment_hash_2, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
+       let (_, payment_hash_2, ..) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], ds_dust_limit*1000);
        // 2nd HTLC:
        send_along_route_with_secret(&nodes[1], route.clone(), &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_1, nodes[5].node.create_inbound_payment_for_hash(payment_hash_1, None, 7200, None).unwrap()); // not added < dust limit + HTLC tx fee
        // 3rd HTLC:
        send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_2, nodes[5].node.create_inbound_payment_for_hash(payment_hash_2, None, 7200, None).unwrap()); // not added < dust limit + HTLC tx fee
        // 4th HTLC:
-       let (_, payment_hash_3, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
+       let (_, payment_hash_3, ..) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
        // 5th HTLC:
-       let (_, payment_hash_4, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
+       let (_, payment_hash_4, ..) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], 1000000);
        // 6th HTLC:
        send_along_route_with_secret(&nodes[1], route.clone(), &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_3, nodes[5].node.create_inbound_payment_for_hash(payment_hash_3, None, 7200, None).unwrap());
@@ -5017,13 +5226,13 @@ fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, anno
        send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_4, nodes[5].node.create_inbound_payment_for_hash(payment_hash_4, None, 7200, None).unwrap());
 
        // 8th HTLC:
-       let (_, payment_hash_5, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
+       let (_, payment_hash_5, ..) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 1000000);
        // 9th HTLC:
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], ds_dust_limit*1000);
        send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], ds_dust_limit*1000, payment_hash_5, nodes[5].node.create_inbound_payment_for_hash(payment_hash_5, None, 7200, None).unwrap()); // not added < dust limit + HTLC tx fee
 
        // 10th HTLC:
-       let (_, payment_hash_6, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
+       let (_, payment_hash_6, ..) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee
        // 11th HTLC:
        let (route, _, _, _) = get_route_and_payment_hash!(nodes[1], nodes[5], 1000000);
        send_along_route_with_secret(&nodes[1], route, &[&[&nodes[2], &nodes[3], &nodes[5]]], 1000000, payment_hash_6, nodes[5].node.create_inbound_payment_for_hash(payment_hash_6, None, 7200, None).unwrap());
@@ -5277,7 +5486,7 @@ fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() {
        // Create some initial channels
        let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (_, our_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000);
+       let (_, our_payment_hash, ..) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000);
        let local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
        assert_eq!(local_txn[0].input.len(), 1);
        check_spends!(local_txn[0], chan_1.3);
@@ -5286,7 +5495,7 @@ fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() {
        mine_transaction(&nodes[0], &local_txn[0]);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[0], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
 
        let htlc_timeout = {
@@ -5329,9 +5538,10 @@ fn test_key_derivation_params() {
        let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
        let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[0].chain_source), &chanmon_cfgs[0].tx_broadcaster, &chanmon_cfgs[0].logger, &chanmon_cfgs[0].fee_estimator, &chanmon_cfgs[0].persister, &keys_manager);
        let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &chanmon_cfgs[0].logger));
-       let scorer = Mutex::new(test_utils::TestScorer::new());
-       let router = test_utils::TestRouter::new(network_graph.clone(), &scorer);
-       let node = NodeCfg { chain_source: &chanmon_cfgs[0].chain_source, logger: &chanmon_cfgs[0].logger, tx_broadcaster: &chanmon_cfgs[0].tx_broadcaster, fee_estimator: &chanmon_cfgs[0].fee_estimator, router, chain_monitor, keys_manager: &keys_manager, network_graph, node_seed: seed, override_init_features: alloc::rc::Rc::new(core::cell::RefCell::new(None)) };
+       let scorer = RwLock::new(test_utils::TestScorer::new());
+       let router = test_utils::TestRouter::new(network_graph.clone(), &chanmon_cfgs[0].logger, &scorer);
+       let message_router = test_utils::TestMessageRouter::new(network_graph.clone());
+       let node = NodeCfg { chain_source: &chanmon_cfgs[0].chain_source, logger: &chanmon_cfgs[0].logger, tx_broadcaster: &chanmon_cfgs[0].tx_broadcaster, fee_estimator: &chanmon_cfgs[0].fee_estimator, router, message_router, chain_monitor, keys_manager: &keys_manager, network_graph, node_seed: seed, override_init_features: alloc::rc::Rc::new(core::cell::RefCell::new(None)) };
        let mut node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
        node_cfgs.remove(0);
        node_cfgs.insert(0, node);
@@ -5352,7 +5562,7 @@ fn test_key_derivation_params() {
        connect_blocks(&nodes[1], node_max_height - nodes[1].best_block_info().1);
        connect_blocks(&nodes[2], node_max_height - nodes[2].best_block_info().1);
 
-       let (_, our_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000);
+       let (_, our_payment_hash, ..) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000);
        let local_txn_0 = get_local_commitment_txn!(nodes[0], chan_0.2);
        let local_txn_1 = get_local_commitment_txn!(nodes[0], chan_1.2);
        assert_eq!(local_txn_1[0].input.len(), 1);
@@ -5373,7 +5583,7 @@ fn test_key_derivation_params() {
        connect_blocks(&nodes[0], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
 
        let htlc_timeout = {
                let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
@@ -5415,7 +5625,7 @@ fn test_static_output_closing_tx() {
        let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2;
 
        mine_transaction(&nodes[0], &closing_tx);
-       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
 
        let spend_txn = check_spendable_outputs!(nodes[0], node_cfgs[0].keys_manager);
@@ -5423,7 +5633,7 @@ fn test_static_output_closing_tx() {
        check_spends!(spend_txn[0], closing_tx);
 
        mine_transaction(&nodes[1], &closing_tx);
-       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure);
+       check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
 
        let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager);
@@ -5438,7 +5648,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], if use_dust { 50000 } else { 3_000_000 });
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], if use_dust { 50000 } else { 3_000_000 });
 
        // Claim the payment, but don't deliver A's commitment_signed, resulting in the HTLC only being
        // present in B's local commitment transaction, but none of A's commitment transactions.
@@ -5448,7 +5658,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) {
 
        let bs_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
        nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &bs_updates.update_fulfill_htlcs[0]);
-       expect_payment_sent_without_paths!(nodes[0], payment_preimage);
+       expect_payment_sent(&nodes[0], payment_preimage, None, false, false);
 
        nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_updates.commitment_signed);
        check_added_monitors!(nodes[0], 1);
@@ -5457,10 +5667,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) {
        check_added_monitors!(nodes[1], 1);
 
        let starting_block = nodes[1].best_block_info();
-       let mut block = Block {
-               header: BlockHeader { version: 0x20000000, prev_blockhash: starting_block.0, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-               txdata: vec![],
-       };
+       let mut block = create_dummy_block(starting_block.0, 42, Vec::new());
        for _ in starting_block.1 + 1..TEST_FINAL_CLTV - CLTV_CLAIM_BUFFER + starting_block.1 + 2 {
                connect_block(&nodes[1], &block);
                block.header.prev_blockhash = block.block_hash();
@@ -5468,7 +5675,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) {
        test_txn_broadcast(&nodes[1], &chan, None, if use_dust { HTLCType::NONE } else { HTLCType::SUCCESS });
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 fn do_htlc_claim_current_remote_commitment_only(use_dust: bool) {
@@ -5490,16 +5697,16 @@ fn do_htlc_claim_current_remote_commitment_only(use_dust: bool) {
        // to "time out" the HTLC.
 
        let starting_block = nodes[1].best_block_info();
-       let mut header = BlockHeader { version: 0x20000000, prev_blockhash: starting_block.0, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
+       let mut block = create_dummy_block(starting_block.0, 42, Vec::new());
 
        for _ in starting_block.1 + 1..TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + starting_block.1 + 2 {
-               connect_block(&nodes[0], &Block { header, txdata: Vec::new()});
-               header.prev_blockhash = header.block_hash();
+               connect_block(&nodes[0], &block);
+               block.header.prev_blockhash = block.block_hash();
        }
        test_txn_broadcast(&nodes[0], &chan, None, HTLCType::NONE);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no_close: bool) {
@@ -5514,7 +5721,7 @@ fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no
        // Also optionally test that we *don't* fail the channel in case the commitment transaction was
        // actually revoked.
        let htlc_value = if use_dust { 50000 } else { 3000000 };
-       let (_, our_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], htlc_value);
+       let (_, our_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], htlc_value);
        nodes[1].node.fail_htlc_backwards(&our_payment_hash);
        expect_pending_htlcs_forwardable_and_htlc_handling_failed!(nodes[1], vec![HTLCDestination::FailedPayment { payment_hash: our_payment_hash }]);
        check_added_monitors!(nodes[1], 1);
@@ -5536,10 +5743,7 @@ fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no
        }
 
        let starting_block = nodes[1].best_block_info();
-       let mut block = Block {
-               header: BlockHeader { version: 0x20000000, prev_blockhash: starting_block.0, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 },
-               txdata: vec![],
-       };
+       let mut block = create_dummy_block(starting_block.0, 42, Vec::new());
        for _ in starting_block.1 + 1..TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + CHAN_CONFIRM_DEPTH + 2 {
                connect_block(&nodes[0], &block);
                block.header.prev_blockhash = block.block_hash();
@@ -5548,7 +5752,7 @@ fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no
                test_txn_broadcast(&nodes[0], &chan, None, HTLCType::NONE);
                check_closed_broadcast!(nodes[0], true);
                check_added_monitors!(nodes[0], 1);
-               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
        } else {
                expect_payment_failed!(nodes[0], our_payment_hash, true);
        }
@@ -5597,14 +5801,14 @@ fn bolt2_open_channel_sending_node_checks_part1() { //This test needs to be on i
        // BOLT #2 spec: Sending node must ensure temporary_channel_id is unique from any other channel ID with the same peer.
        let channel_value_satoshis=10000;
        let push_msat=10001;
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).unwrap();
        let node0_to_1_send_open_channel = 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(), &node0_to_1_send_open_channel);
        get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
 
        // Create a second channel with the same random values. This used to panic due to a colliding
        // channel_id, but now panics due to a colliding outbound SCID alias.
-       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
+       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_err());
 }
 
 #[test]
@@ -5617,18 +5821,18 @@ fn bolt2_open_channel_sending_node_checks_part2() {
        // BOLT #2 spec: Sending node must set funding_satoshis to less than 2^24 satoshis
        let channel_value_satoshis=2^24;
        let push_msat=10001;
-       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
+       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_err());
 
        // BOLT #2 spec: Sending node must set push_msat to equal or less than 1000 * funding_satoshis
        let channel_value_satoshis=10000;
        // Test when push_msat is equal to 1000 * funding_satoshis.
        let push_msat=1000*channel_value_satoshis+1;
-       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_err());
+       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_err());
 
        // BOLT #2 spec: Sending node must set set channel_reserve_satoshis greater than or equal to dust_limit_satoshis
        let channel_value_satoshis=10000;
        let push_msat=10001;
-       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).is_ok()); //Create a valid channel
+       assert!(nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).is_ok()); //Create a valid channel
        let node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
        assert!(node0_to_1_send_open_channel.channel_reserve_satoshis>=node0_to_1_send_open_channel.dust_limit_satoshis);
 
@@ -5641,8 +5845,8 @@ fn bolt2_open_channel_sending_node_checks_part2() {
        assert!(node0_to_1_send_open_channel.to_self_delay==BREAKDOWN_TIMEOUT);
 
        // BOLT #2 spec: Sending node must ensure the chain_hash value identifies the chain it wishes to open the channel within.
-       let chain_hash=genesis_block(Network::Testnet).header.block_hash();
-       assert_eq!(node0_to_1_send_open_channel.chain_hash,chain_hash);
+       let chain_hash = ChainHash::using_genesis_block(Network::Testnet);
+       assert_eq!(node0_to_1_send_open_channel.chain_hash, chain_hash);
 
        // BOLT #2 spec: Sending node must set funding_pubkey, revocation_basepoint, htlc_basepoint, payment_basepoint, and delayed_payment_basepoint to valid DER-encoded, compressed, secp256k1 pubkeys.
        assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.funding_pubkey.serialize()).is_ok());
@@ -5661,7 +5865,7 @@ fn bolt2_open_channel_sane_dust_limit() {
 
        let channel_value_satoshis=1000000;
        let push_msat=10001;
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None, None).unwrap();
        let mut node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
        node0_to_1_send_open_channel.dust_limit_satoshis = 547;
        node0_to_1_send_open_channel.channel_reserve_satoshis = 100001;
@@ -5712,10 +5916,10 @@ fn test_fail_holding_cell_htlc_upon_free() {
        let mut chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan.2);
        let channel_reserve = chan_stat.channel_reserve_msat;
        let feerate = get_feerate!(nodes[0], nodes[1], chan.2);
-       let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan.2);
+       let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan.2);
 
        // 2* and +1 HTLCs on the commit tx fee calculation for the fee spike reserve.
-       let max_can_send = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 1 + 1, opt_anchors);
+       let max_can_send = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 1 + 1, &channel_type_features);
        let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], max_can_send);
 
        // Send a payment which passes reserve checks but gets stuck in the holding cell.
@@ -5736,10 +5940,7 @@ fn test_fail_holding_cell_htlc_upon_free() {
        // us to surface its failure to the user.
        chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan.2);
        assert_eq!(chan_stat.holding_cell_outbound_amount_msat, 0);
-       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Freeing holding cell with 1 HTLC updates in channel {}", hex::encode(chan.2)), 1);
-       let failure_log = format!("Failed to send HTLC with payment_hash {} due to Cannot send value that would put our balance under counterparty-announced channel reserve value ({}) in channel {}",
-               hex::encode(our_payment_hash.0), chan_stat.channel_reserve_msat, hex::encode(chan.2));
-       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), failure_log.to_string(), 1);
+       nodes[0].logger.assert_log("lightning::ln::channel", format!("Freeing holding cell with 1 HTLC updates in channel {}", chan.2), 1);
 
        // Check that the payment failed to be sent out.
        let events = nodes[0].node.get_and_clear_pending_events();
@@ -5795,11 +5996,11 @@ fn test_free_and_fail_holding_cell_htlcs() {
        let mut chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan.2);
        let channel_reserve = chan_stat.channel_reserve_msat;
        let feerate = get_feerate!(nodes[0], nodes[1], chan.2);
-       let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan.2);
+       let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan.2);
 
        // 2* and +1 HTLCs on the commit tx fee calculation for the fee spike reserve.
        let amt_1 = 20000;
-       let amt_2 = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 2 + 1, opt_anchors) - amt_1;
+       let amt_2 = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 2 + 1, &channel_type_features) - amt_1;
        let (route_1, payment_hash_1, payment_preimage_1, payment_secret_1) = get_route_and_payment_hash!(nodes[0], nodes[1], amt_1);
        let (route_2, payment_hash_2, _, payment_secret_2) = get_route_and_payment_hash!(nodes[0], nodes[1], amt_2);
 
@@ -5827,10 +6028,7 @@ fn test_free_and_fail_holding_cell_htlcs() {
        // to surface its failure to the user. The first payment should succeed.
        chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan.2);
        assert_eq!(chan_stat.holding_cell_outbound_amount_msat, 0);
-       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Freeing holding cell with 2 HTLC updates in channel {}", hex::encode(chan.2)), 1);
-       let failure_log = format!("Failed to send HTLC with payment_hash {} due to Cannot send value that would put our balance under counterparty-announced channel reserve value ({}) in channel {}",
-               hex::encode(payment_hash_2.0), chan_stat.channel_reserve_msat, hex::encode(chan.2));
-       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), failure_log.to_string(), 1);
+       nodes[0].logger.assert_log("lightning::ln::channel", format!("Freeing holding cell with 2 HTLC updates in channel {}", chan.2), 1);
 
        // Check that the second payment failed to be sent out.
        let events = nodes[0].node.get_and_clear_pending_events();
@@ -5896,10 +6094,10 @@ fn test_free_and_fail_holding_cell_htlcs() {
 fn test_fail_holding_cell_htlc_upon_free_multihop() {
        let chanmon_cfgs = create_chanmon_cfgs(3);
        let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
-       // 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.
+       // Avoid having to include routing fees in calculations
        let mut config = test_default_channel_config();
-       config.channel_config.forwarding_fee_base_msat = 196;
+       config.channel_config.forwarding_fee_base_msat = 0;
+       config.channel_config.forwarding_fee_proportional_millionths = 0;
        let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[Some(config.clone()), Some(config.clone()), Some(config.clone())]);
        let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
        let chan_0_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000);
@@ -5928,12 +6126,10 @@ fn test_fail_holding_cell_htlc_upon_free_multihop() {
        let mut chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan_0_1.2);
        let channel_reserve = chan_stat.channel_reserve_msat;
        let feerate = get_feerate!(nodes[0], nodes[1], chan_0_1.2);
-       let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan_0_1.2);
+       let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan_0_1.2);
 
        // Send a payment which passes reserve checks but gets stuck in the holding cell.
-       let feemsat = 239;
-       let total_routing_fee_msat = (nodes.len() - 2) as u64 * feemsat;
-       let max_can_send = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 1 + 1, opt_anchors) - total_routing_fee_msat;
+       let max_can_send = 5000000 - channel_reserve - 2*commit_tx_fee_msat(feerate, 1 + 1, &channel_type_features);
        let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], max_can_send);
        let payment_event = {
                nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -6023,6 +6219,30 @@ fn test_fail_holding_cell_htlc_upon_free_multihop() {
        check_added_monitors!(nodes[0], 1);
 }
 
+#[test]
+fn test_payment_route_reaching_same_channel_twice() {
+       //A route should not go through the same channel twice
+       //It is enforced when constructing a route.
+       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, None]);
+       let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+       let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0);
+
+       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 0)
+               .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
+       let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], payment_params, 100000000);
+
+       // Extend the path by itself, essentially simulating route going through same channel twice
+       let cloned_hops = route.paths[0].hops.clone();
+       route.paths[0].hops.extend_from_slice(&cloned_hops);
+
+       unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
+               RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
+       ), false, APIError::InvalidRoute { ref err },
+       assert_eq!(err, &"Path went through the same channel twice"));
+}
+
 // BOLT 2 Requirements for the Sender when constructing and sending an update_add_htlc message.
 // BOLT 2 Requirement: MUST NOT offer amount_msat it cannot pay for in the remote commitment transaction at the current feerate_per_kw (see "Updating Fees") while maintaining its channel reserve.
 //TODO: I don't believe this is explicitly enforced when sending an HTLC but as the Fee aspect of the BOLT specs is in flux leaving this as a TODO.
@@ -6041,10 +6261,8 @@ fn test_update_add_htlc_bolt2_sender_value_below_minimum_msat() {
 
        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                        RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-               ), true, APIError::ChannelUnavailable { ref err },
-               assert!(regex::Regex::new(r"Cannot send less than their minimum HTLC value \(\d+\)").unwrap().is_match(err)));
+               ), true, APIError::ChannelUnavailable { .. }, {});
        assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
-       nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot send less than their minimum HTLC value", 1);
 }
 
 #[test]
@@ -6084,10 +6302,11 @@ fn test_update_add_htlc_bolt2_receiver_zero_value_msat() {
        updates.update_add_htlcs[0].amount_msat = 0;
 
        nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
-       nodes[1].logger.assert_log("lightning::ln::channelmanager".to_string(), "Remote side tried to send a 0-msat HTLC".to_string(), 1);
+       nodes[1].logger.assert_log_contains("lightning::ln::channelmanager", "Remote side tried to send a 0-msat HTLC", 3);
        check_closed_broadcast!(nodes[1], true).unwrap();
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "Remote side tried to send a 0-msat HTLC".to_string() });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "Remote side tried to send a 0-msat HTLC".to_string() },
+               [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6101,7 +6320,7 @@ fn test_update_add_htlc_bolt2_sender_cltv_expiry_too_high() {
        let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0);
 
        let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 0)
-               .with_features(nodes[1].node.invoice_features());
+               .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
        let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], payment_params, 100000000);
        route.paths[0].hops.last_mut().unwrap().cltv_expiry_delta = 500000001;
        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -6121,8 +6340,10 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_num_and_htlc_id_increment()
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0);
        let max_accepted_htlcs = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[0].node.get_our_node_id())
-               .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().counterparty_max_accepted_htlcs as u64;
+               .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().context().counterparty_max_accepted_htlcs as u64;
 
+       // Fetch a route in advance as we will be unable to once we're unable to send.
+       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 100000);
        for i in 0..max_accepted_htlcs {
                let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 100000);
                let payment_event = {
@@ -6146,14 +6367,11 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_num_and_htlc_id_increment()
                expect_pending_htlcs_forwardable!(nodes[1]);
                expect_payment_claimable!(nodes[1], our_payment_hash, our_payment_secret, 100000);
        }
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 100000);
        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                        RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-               ), true, APIError::ChannelUnavailable { ref err },
-               assert!(regex::Regex::new(r"Cannot push more than their max accepted HTLCs \(\d+\)").unwrap().is_match(err)));
+               ), true, APIError::ChannelUnavailable { .. }, {});
 
        assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
-       nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot push more than their max accepted HTLCs", 1);
 }
 
 #[test]
@@ -6175,11 +6393,8 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() {
        route.paths[0].hops[0].fee_msat =  max_in_flight + 1;
        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
                        RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)
-               ), true, APIError::ChannelUnavailable { ref err },
-               assert!(regex::Regex::new(r"Cannot send value that would put us over the max HTLC value in flight our peer will accept \(\d+\)").unwrap().is_match(err)));
-
+               ), true, APIError::ChannelUnavailable { .. }, {});
        assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
-       nodes[0].logger.assert_log_contains("lightning::ln::channelmanager", "Cannot send value that would put us over the max HTLC value in flight our peer will accept", 1);
 
        send_payment(&nodes[0], &[&nodes[1]], max_in_flight);
 }
@@ -6198,7 +6413,7 @@ fn test_update_add_htlc_bolt2_receiver_check_amount_received_more_than_min() {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
                let channel = chan_lock.channel_by_id.get(&chan.2).unwrap();
-               htlc_minimum_msat = channel.get_holder_htlc_minimum_msat();
+               htlc_minimum_msat = channel.context().get_holder_htlc_minimum_msat();
        }
 
        let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], htlc_minimum_msat);
@@ -6212,7 +6427,7 @@ fn test_update_add_htlc_bolt2_receiver_check_amount_received_more_than_min() {
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert!(regex::Regex::new(r"Remote side tried to send less than our minimum HTLC value\. Lower limit: \(\d+\)\. Actual: \(\d+\)").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6227,9 +6442,9 @@ fn test_update_add_htlc_bolt2_receiver_sender_can_afford_amount_sent() {
        let chan_stat = get_channel_value_stat!(nodes[0], nodes[1], chan.2);
        let channel_reserve = chan_stat.channel_reserve_msat;
        let feerate = get_feerate!(nodes[0], nodes[1], chan.2);
-       let opt_anchors = get_opt_anchors!(nodes[0], nodes[1], chan.2);
+       let channel_type_features = get_channel_type_features!(nodes[0], nodes[1], chan.2);
        // The 2* and +1 are for the fee spike reserve.
-       let commit_tx_fee_outbound = 2 * commit_tx_fee_msat(feerate, 1 + 1, opt_anchors);
+       let commit_tx_fee_outbound = 2 * commit_tx_fee_msat(feerate, 1 + 1, &channel_type_features);
 
        let max_can_send = 5000000 - channel_reserve - commit_tx_fee_outbound;
        let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], max_can_send);
@@ -6248,7 +6463,7 @@ fn test_update_add_htlc_bolt2_receiver_sender_can_afford_amount_sent() {
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert_eq!(err_msg.data, "Remote HTLC add would put them under remote reserve value");
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6261,13 +6476,16 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000);
 
-       let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 3999999);
+       let send_amt = 3999999;
+       let (mut route, our_payment_hash, _, our_payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], 1000);
+       route.paths[0].hops[0].fee_msat = send_amt;
        let session_priv = SecretKey::from_slice(&[42; 32]).unwrap();
        let cur_height = nodes[0].node.best_block.read().unwrap().height() + 1;
        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);
+               &route.paths[0], send_amt, 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).unwrap();
 
        let mut msg = msgs::UpdateAddHTLC {
                channel_id: chan.2,
@@ -6276,6 +6494,8 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
                payment_hash: our_payment_hash,
                cltv_expiry: htlc_cltv,
                onion_routing_packet: onion_packet.clone(),
+               skimmed_fee_msat: None,
+               blinding_point: None,
        };
 
        for i in 0..50 {
@@ -6289,7 +6509,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert!(regex::Regex::new(r"Remote tried to push more than our max accepted HTLCs \(\d+\)").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6313,7 +6533,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_in_flight_msat() {
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert!(regex::Regex::new("Remote HTLC add would put them over our max HTLC value").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[0].node.get_our_node_id()], 1000000);
 }
 
 #[test]
@@ -6337,7 +6557,7 @@ fn test_update_add_htlc_bolt2_receiver_check_cltv_expiry() {
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert_eq!(err_msg.data,"Remote provided CLTV expiry in seconds instead of block height");
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6361,10 +6581,14 @@ 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]);
@@ -6385,7 +6609,7 @@ fn test_update_add_htlc_bolt2_receiver_check_repeated_id_ignore() {
        let err_msg = check_closed_broadcast!(nodes[1], true).unwrap();
        assert!(regex::Regex::new(r"Remote skipped HTLC ID \(skipped ID: \d+\)").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6417,7 +6641,7 @@ fn test_update_fulfill_htlc_bolt2_update_fulfill_htlc_before_commitment() {
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert!(regex::Regex::new(r"Remote tried to fulfill/fail HTLC \(\d+\) before it had been committed").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6449,7 +6673,7 @@ fn test_update_fulfill_htlc_bolt2_update_fail_htlc_before_commitment() {
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert!(regex::Regex::new(r"Remote tried to fulfill/fail HTLC \(\d+\) before it had been committed").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6481,7 +6705,7 @@ fn test_update_fulfill_htlc_bolt2_update_fail_malformed_htlc_before_commitment()
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert!(regex::Regex::new(r"Remote tried to fulfill/fail HTLC \(\d+\) before it had been committed").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6494,7 +6718,7 @@ fn test_update_fulfill_htlc_bolt2_incorrect_htlc_id() {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (our_payment_preimage, our_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 100_000);
+       let (our_payment_preimage, our_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 100_000);
 
        nodes[1].node.claim_funds(our_payment_preimage);
        check_added_monitors!(nodes[1], 1);
@@ -6524,7 +6748,7 @@ fn test_update_fulfill_htlc_bolt2_incorrect_htlc_id() {
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert_eq!(err_msg.data, "Remote tried to fulfill/fail an HTLC we couldn't find");
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6537,7 +6761,7 @@ fn test_update_fulfill_htlc_bolt2_wrong_preimage() {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
        create_announced_chan_between_nodes(&nodes, 0, 1);
 
-       let (our_payment_preimage, our_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 100_000);
+       let (our_payment_preimage, our_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 100_000);
 
        nodes[1].node.claim_funds(our_payment_preimage);
        check_added_monitors!(nodes[1], 1);
@@ -6567,7 +6791,7 @@ fn test_update_fulfill_htlc_bolt2_wrong_preimage() {
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert!(regex::Regex::new(r"Remote tried to fulfill HTLC \(\d+\) with an incorrect preimage").unwrap().is_match(err_msg.data.as_str()));
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -6614,7 +6838,7 @@ fn test_update_fulfill_htlc_bolt2_missing_badonion_bit_for_malformed_htlc_messag
        let err_msg = check_closed_broadcast!(nodes[0], true).unwrap();
        assert_eq!(err_msg.data, "Got update_fail_malformed_htlc with BADONION not set");
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: err_msg.data }, [nodes[1].node.get_our_node_id()], 1000000);
 }
 
 #[test]
@@ -6793,11 +7017,11 @@ fn do_test_failure_delay_dust_htlc_local_commitment(announce_latest: bool) {
        let chan =create_announced_chan_between_nodes(&nodes, 0, 1);
 
        let bs_dust_limit = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[0].node.get_our_node_id())
-               .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis;
+               .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().context().holder_dust_limit_satoshis;
 
        // We route 2 dust-HTLCs between A and B
-       let (_, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
-       let (_, payment_hash_2, _) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
+       let (_, payment_hash_1, ..) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
+       let (_, payment_hash_2, ..) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
        route_payment(&nodes[0], &[&nodes[1]], 1000000);
 
        // Cache one local commitment tx as previous
@@ -6841,7 +7065,7 @@ fn do_test_failure_delay_dust_htlc_local_commitment(announce_latest: bool) {
 
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
 
        assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
@@ -6886,17 +7110,17 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) {
        let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
 
        let bs_dust_limit = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[0].node.get_our_node_id())
-               .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis;
+               .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().context().holder_dust_limit_satoshis;
 
-       let (_payment_preimage_1, dust_hash, _payment_secret_1) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
-       let (_payment_preimage_2, non_dust_hash, _payment_secret_2) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
+       let (_payment_preimage_1, dust_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000);
+       let (_payment_preimage_2, non_dust_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
 
        let as_commitment_tx = get_local_commitment_txn!(nodes[0], chan.2);
        let bs_commitment_tx = get_local_commitment_txn!(nodes[1], chan.2);
 
        // We revoked bs_commitment_tx
        if revoked {
-               let (payment_preimage_3, _, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
+               let (payment_preimage_3, ..) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
                claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3);
        }
 
@@ -6904,7 +7128,7 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) {
        if local {
                // We fail dust-HTLC 1 by broadcast of local commitment tx
                mine_transaction(&nodes[0], &as_commitment_tx[0]);
-               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
                connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
                expect_payment_failed!(nodes[0], dust_hash, false);
 
@@ -6924,7 +7148,7 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) {
                mine_transaction(&nodes[0], &bs_commitment_tx[0]);
                check_closed_broadcast!(nodes[0], true);
                check_added_monitors!(nodes[0], 1);
-               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+               check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
                assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
 
                connect_blocks(&nodes[0], TEST_FINAL_CLTV); // Confirm blocks until the HTLC expires
@@ -6938,7 +7162,7 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) {
                if !revoked {
                        assert_eq!(timeout_tx[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
                } else {
-                       assert_eq!(timeout_tx[0].lock_time.0, 11);
+                       assert_eq!(timeout_tx[0].lock_time.to_consensus_u32(), 11);
                }
                // We fail non-dust-HTLC 2 by broadcast of local timeout/revocation-claim tx
                mine_transaction(&nodes[0], &timeout_tx[0]);
@@ -6969,10 +7193,10 @@ fn test_user_configurable_csv_delay() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &user_cfgs);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       // We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in Channel::new_outbound()
-       if let Err(error) = Channel::new_outbound(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
+       // We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in OutboundV1Channel::new()
+       if let Err(error) = OutboundV1Channel::new(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
                &nodes[0].keys_manager, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &nodes[1].node.init_features(), 1000000, 1000000, 0,
-               &low_our_to_self_config, 0, 42)
+               &low_our_to_self_config, 0, 42, None)
        {
                match error {
                        APIError::APIMisuseError { err } => { assert!(regex::Regex::new(r"Configured with an unreasonable our_to_self_delay \(\d+\) putting user funds at risks").unwrap().is_match(err.as_str())); },
@@ -6980,13 +7204,13 @@ fn test_user_configurable_csv_delay() {
                }
        } else { assert!(false) }
 
-       // We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in Channel::new_from_req()
-       nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
+       // We test config.our_to_self > BREAKDOWN_TIMEOUT is enforced in InboundV1Channel::new()
+       nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None, None).unwrap();
        let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
        open_channel.to_self_delay = 200;
-       if let Err(error) = Channel::new_from_req(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
+       if let Err(error) = InboundV1Channel::new(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
                &nodes[0].keys_manager, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &nodes[0].node.channel_type_features(), &nodes[1].node.init_features(), &open_channel, 0,
-               &low_our_to_self_config, 0, &nodes[0].logger, 42)
+               &low_our_to_self_config, 0, &nodes[0].logger, /*is_0conf=*/false)
        {
                match error {
                        ChannelError::Close(err) => { assert!(regex::Regex::new(r"Configured with an unreasonable our_to_self_delay \(\d+\) putting user funds at risks").unwrap().is_match(err.as_str()));  },
@@ -6995,7 +7219,7 @@ fn test_user_configurable_csv_delay() {
        } else { assert!(false); }
 
        // We test msg.to_self_delay <= config.their_to_self_delay is enforced in Chanel::accept_channel()
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1000000, 1000000, 42, None, None).unwrap();
        nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()));
        let mut accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
        accept_channel.to_self_delay = 200;
@@ -7010,15 +7234,15 @@ fn test_user_configurable_csv_delay() {
                        _ => { panic!(); }
                }
        } else { panic!(); }
-       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: reason_msg });
+       check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: reason_msg }, [nodes[1].node.get_our_node_id()], 1000000);
 
-       // We test msg.to_self_delay <= config.their_to_self_delay is enforced in Channel::new_from_req()
-       nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None).unwrap();
+       // We test msg.to_self_delay <= config.their_to_self_delay is enforced in InboundV1Channel::new()
+       nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42, None, None).unwrap();
        let mut open_channel = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
        open_channel.to_self_delay = 200;
-       if let Err(error) = Channel::new_from_req(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
+       if let Err(error) = InboundV1Channel::new(&LowerBoundedFeeEstimator::new(&test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) }),
                &nodes[0].keys_manager, &nodes[0].keys_manager, nodes[1].node.get_our_node_id(), &nodes[0].node.channel_type_features(), &nodes[1].node.init_features(), &open_channel, 0,
-               &high_their_to_self_config, 0, &nodes[0].logger, 42)
+               &high_their_to_self_config, 0, &nodes[0].logger, /*is_0conf=*/false)
        {
                match error {
                        ChannelError::Close(err) => { assert!(regex::Regex::new(r"They wanted our payments to be delayed by a needlessly long period\. Upper limit: \d+\. Actual: \d+").unwrap().is_match(err.as_str())); },
@@ -7043,8 +7267,11 @@ 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_features(nodes[1].node.invoice_features());
-       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 payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV)
+               .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
+       let route_params = RouteParameters::from_payment_params_and_value(payment_params, 10_000);
+       let route = get_route(&nodes[0].node.get_our_node_id(), &route_params, &nodes[0].network_graph.read_only(),
+               None, nodes[0].logger, &scorer, &Default::default(), &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,
@@ -7127,10 +7354,14 @@ 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);
 
@@ -7189,7 +7420,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 30)
-               .with_features(nodes[0].node.invoice_features());
+               .with_bolt11_features(nodes[0].node.bolt11_invoice_features()).unwrap();
        let (route,_, _, _) = get_route_and_payment_hash!(nodes[1], nodes[0], payment_params, 3000000);
        send_along_route(&nodes[1], route, &vec!(&nodes[0])[..], 3000000);
 
@@ -7212,8 +7443,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
 
        // Actually revoke tx by claiming a HTLC
        claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: header_114, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[1], &Block { header, txdata: vec![revoked_txn[0].clone()] });
+       connect_block(&nodes[1], &create_dummy_block(header_114, 42, vec![revoked_txn[0].clone()]));
        check_added_monitors!(nodes[1], 1);
 
        // One or more justice tx should have been broadcast, check it
@@ -7226,7 +7456,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
                assert_eq!(node_txn[0].output.len(), 1);
                check_spends!(node_txn[0], revoked_txn[0]);
                let fee_1 = penalty_sum - node_txn[0].output[0].value;
-               feerate_1 = fee_1 * 1000 / node_txn[0].weight() as u64;
+               feerate_1 = fee_1 * 1000 / node_txn[0].weight().to_wu();
                penalty_1 = node_txn[0].txid();
                node_txn.clear();
        };
@@ -7246,7 +7476,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
                        // Verify new bumped tx is different from last claiming transaction, we don't want spurrious rebroadcast
                        assert_ne!(penalty_2, penalty_1);
                        let fee_2 = penalty_sum - node_txn[0].output[0].value;
-                       feerate_2 = fee_2 * 1000 / node_txn[0].weight() as u64;
+                       feerate_2 = fee_2 * 1000 / node_txn[0].weight().to_wu();
                        // Verify 25% bump heuristic
                        assert!(feerate_2 * 100 >= feerate_1 * 125);
                        node_txn.clear();
@@ -7269,7 +7499,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
                        // Verify new bumped tx is different from last claiming transaction, we don't want spurrious rebroadcast
                        assert_ne!(penalty_3, penalty_2);
                        let fee_3 = penalty_sum - node_txn[0].output[0].value;
-                       feerate_3 = fee_3 * 1000 / node_txn[0].weight() as u64;
+                       feerate_3 = fee_3 * 1000 / node_txn[0].weight().to_wu();
                        // Verify 25% bump heuristic
                        assert!(feerate_3 * 100 >= feerate_2 * 125);
                        node_txn.clear();
@@ -7294,15 +7524,18 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
 
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000);
        // Lock HTLC in both directions (using a slightly lower CLTV delay to provide timely RBF bumps)
-       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 50).with_features(nodes[1].node.invoice_features());
+       let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 50).with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
        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();
+       let route_params = RouteParameters::from_payment_params_and_value(payment_params, 3_000_000);
+       let route = get_route(&nodes[0].node.get_our_node_id(), &route_params, &nodes[0].network_graph.read_only(), None,
+               nodes[0].logger, &scorer, &Default::default(), &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_features(nodes[0].node.invoice_features());
-       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();
+       let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 50)
+               .with_bolt11_features(nodes[0].node.bolt11_invoice_features()).unwrap();
+       let route_params = RouteParameters::from_payment_params_and_value(payment_params, 3_000_000);
+       let route = get_route(&nodes[1].node.get_our_node_id(), &route_params, &nodes[1].network_graph.read_only(), None,
+               nodes[0].logger, &scorer, &Default::default(), &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);
@@ -7312,12 +7545,11 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
        // Revoke local commitment tx
        claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
 
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
        // B will generate both revoked HTLC-timeout/HTLC-preimage txn from revoked commitment tx
-       connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone()] });
+       connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![revoked_local_txn[0].clone()]));
        check_closed_broadcast!(nodes[1], true);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 1000000);
        connect_blocks(&nodes[1], 50); // Confirm blocks until the HTLC expires (note CLTV was explicitly 50 above)
 
        let revoked_htlc_txn = {
@@ -7338,10 +7570,10 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
 
        // Broadcast set of revoked txn on A
        let hash_128 = connect_blocks(&nodes[0], 40);
-       let header_11 = BlockHeader { version: 0x20000000, prev_blockhash: hash_128, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_11, txdata: vec![revoked_local_txn[0].clone()] });
-       let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_11.block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_129, txdata: vec![revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()] });
+       let block_11 = create_dummy_block(hash_128, 42, vec![revoked_local_txn[0].clone()]);
+       connect_block(&nodes[0], &block_11);
+       let block_129 = create_dummy_block(block_11.block_hash(), 42, vec![revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()]);
+       connect_block(&nodes[0], &block_129);
        let events = nodes[0].node.get_and_clear_pending_events();
        expect_pending_htlcs_forwardable_from_events!(nodes[0], events[0..1], true);
        match events.last().unwrap() {
@@ -7386,16 +7618,16 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
                first = node_txn[3].txid();
                // Store both feerates for later comparison
                let fee_1 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[1].output[0].value - node_txn[3].output[0].value;
-               feerate_1 = fee_1 * 1000 / node_txn[3].weight() as u64;
+               feerate_1 = fee_1 * 1000 / node_txn[3].weight().to_wu();
                penalty_txn = vec![node_txn[2].clone()];
                node_txn.clear();
        }
 
        // Connect one more block to see if bumped penalty are issued for HTLC txn
-       let header_130 = BlockHeader { version: 0x20000000, prev_blockhash: header_129.block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_130, txdata: penalty_txn });
-       let header_131 = BlockHeader { version: 0x20000000, prev_blockhash: header_130.block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_131, txdata: Vec::new() });
+       let block_130 = create_dummy_block(block_129.block_hash(), 42, penalty_txn);
+       connect_block(&nodes[0], &block_130);
+       let block_131 = create_dummy_block(block_130.block_hash(), 42, Vec::new());
+       connect_block(&nodes[0], &block_131);
 
        // Few more blocks to confirm penalty txn
        connect_blocks(&nodes[0], 4);
@@ -7410,15 +7642,14 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
                // Verify bumped tx is different and 25% bump heuristic
                assert_ne!(first, node_txn[0].txid());
                let fee_2 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[1].output[0].value - node_txn[0].output[0].value;
-               let feerate_2 = fee_2 * 1000 / node_txn[0].weight() as u64;
+               let feerate_2 = fee_2 * 1000 / node_txn[0].weight().to_wu();
                assert!(feerate_2 * 100 > feerate_1 * 125);
                let txn = vec![node_txn[0].clone()];
                node_txn.clear();
                txn
        };
        // Broadcast claim txn and confirm blocks to avoid further bumps on this outputs
-       let header_145 = BlockHeader { version: 0x20000000, prev_blockhash: header_144, merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_145, txdata: node_txn });
+       connect_block(&nodes[0], &create_dummy_block(header_144, 42, node_txn));
        connect_blocks(&nodes[0], 20);
        {
                let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
@@ -7450,7 +7681,7 @@ fn test_bump_penalty_txn_on_remote_commitment() {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000);
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 3_000_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 3_000_000);
        route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000).0;
 
        // Remote commitment txn with 4 outputs : to_local, to_remote, 1 outgoing HTLC, 1 incoming HTLC
@@ -7487,7 +7718,7 @@ fn test_bump_penalty_txn_on_remote_commitment() {
                preimage = node_txn[0].txid();
                let index = node_txn[0].input[0].previous_output.vout;
                let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value;
-               feerate_preimage = fee * 1000 / node_txn[0].weight() as u64;
+               feerate_preimage = fee * 1000 / node_txn[0].weight().to_wu();
 
                let (preimage_bump_tx, timeout_tx) = if node_txn[2].input[0].previous_output == node_txn[0].input[0].previous_output {
                        (node_txn[2].clone(), node_txn[1].clone())
@@ -7502,7 +7733,7 @@ fn test_bump_penalty_txn_on_remote_commitment() {
                timeout = timeout_tx.txid();
                let index = timeout_tx.input[0].previous_output.vout;
                let fee = remote_txn[0].output[index as usize].value - timeout_tx.output[0].value;
-               feerate_timeout = fee * 1000 / timeout_tx.weight() as u64;
+               feerate_timeout = fee * 1000 / timeout_tx.weight().to_wu();
 
                node_txn.clear();
        };
@@ -7521,13 +7752,13 @@ fn test_bump_penalty_txn_on_remote_commitment() {
 
                let index = preimage_bump.input[0].previous_output.vout;
                let fee = remote_txn[0].output[index as usize].value - preimage_bump.output[0].value;
-               let new_feerate = fee * 1000 / preimage_bump.weight() as u64;
+               let new_feerate = fee * 1000 / preimage_bump.weight().to_wu();
                assert!(new_feerate * 100 > feerate_timeout * 125);
                assert_ne!(timeout, preimage_bump.txid());
 
                let index = node_txn[0].input[0].previous_output.vout;
                let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value;
-               let new_feerate = fee * 1000 / node_txn[0].weight() as u64;
+               let new_feerate = fee * 1000 / node_txn[0].weight().to_wu();
                assert!(new_feerate * 100 > feerate_preimage * 125);
                assert_ne!(preimage, node_txn[0].txid());
 
@@ -7544,7 +7775,7 @@ fn test_counterparty_raa_skip_no_crash() {
        // commitment transaction, we would have happily carried on and provided them the next
        // commitment transaction based on one RAA forward. This would probably eventually have led to
        // channel closure, but it would not have resulted in funds loss. Still, our
-       // EnforcingSigner would have panicked as it doesn't like jumps into the future. Here, we
+       // TestChannelSigner would have panicked as it doesn't like jumps into the future. Here, we
        // check simply that the channel is closed in response to such an RAA, but don't check whether
        // we decide to punish our counterparty for revoking their funds (as we don't currently
        // implement that).
@@ -7559,21 +7790,23 @@ fn test_counterparty_raa_skip_no_crash() {
        {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let mut guard = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
-               let keys = guard.channel_by_id.get_mut(&channel_id).unwrap().get_signer();
+               let keys = guard.channel_by_id.get_mut(&channel_id).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap().get_signer();
 
                const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1;
 
                // Make signer believe we got a counterparty signature, so that it allows the revocation
-               keys.get_enforcement_state().last_holder_commitment -= 1;
-               per_commitment_secret = keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER);
+               keys.as_ecdsa().unwrap().get_enforcement_state().last_holder_commitment -= 1;
+               per_commitment_secret = keys.as_ref().release_commitment_secret(INITIAL_COMMITMENT_NUMBER);
 
                // Must revoke without gaps
-               keys.get_enforcement_state().last_holder_commitment -= 1;
-               keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 1);
+               keys.as_ecdsa().unwrap().get_enforcement_state().last_holder_commitment -= 1;
+               keys.as_ref().release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 1);
 
-               keys.get_enforcement_state().last_holder_commitment -= 1;
+               keys.as_ecdsa().unwrap().get_enforcement_state().last_holder_commitment -= 1;
                next_per_commitment_point = PublicKey::from_secret_key(&Secp256k1::new(),
-                       &SecretKey::from_slice(&keys.release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 2)).unwrap());
+                       &SecretKey::from_slice(&keys.as_ref().release_commitment_secret(INITIAL_COMMITMENT_NUMBER - 2)).unwrap());
        }
 
        nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(),
@@ -7586,7 +7819,8 @@ fn test_counterparty_raa_skip_no_crash() {
                });
        assert_eq!(check_closed_broadcast!(nodes[1], true).unwrap().data, "Received an unexpected revoke_and_ack");
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "Received an unexpected revoke_and_ack".to_string() });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: "Received an unexpected revoke_and_ack".to_string() }
+               , [nodes[0].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -7601,8 +7835,8 @@ fn test_bump_txn_sanitize_tracking_maps() {
 
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000);
        // Lock HTLC in both directions
-       let (payment_preimage_1, _, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000);
-       let (_, payment_hash_2, _) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 9_000_000);
+       let (payment_preimage_1, ..) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000);
+       let (_, payment_hash_2, ..) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 9_000_000);
 
        let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan.2);
        assert_eq!(revoked_local_txn[0].input.len(), 1);
@@ -7619,7 +7853,7 @@ fn test_bump_txn_sanitize_tracking_maps() {
        mine_transaction(&nodes[0], &revoked_local_txn[0]);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 1000000);
        let penalty_txn = {
                let mut node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
                assert_eq!(node_txn.len(), 3); //ChannelMonitor: justice txn * 3
@@ -7630,8 +7864,7 @@ fn test_bump_txn_sanitize_tracking_maps() {
                node_txn.clear();
                penalty_txn
        };
-       let header_130 = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_130, txdata: penalty_txn });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, penalty_txn));
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
        {
                let monitor = nodes[0].chain_monitor.chain_monitor.get_monitor(OutPoint { txid: chan.3.txid(), index: 0 }).unwrap();
@@ -7640,45 +7873,6 @@ fn test_bump_txn_sanitize_tracking_maps() {
        }
 }
 
-#[test]
-fn test_pending_claimed_htlc_no_balance_underflow() {
-       // Tests that if we have a pending outbound HTLC as well as a claimed-but-not-fully-removed
-       // HTLC we will not underflow when we call `Channel::get_balance_msat()`.
-       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, None]);
-       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
-       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, 0);
-
-       let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 1_010_000);
-       nodes[1].node.claim_funds(payment_preimage);
-       expect_payment_claimed!(nodes[1], payment_hash, 1_010_000);
-       check_added_monitors!(nodes[1], 1);
-       let fulfill_ev = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
-
-       nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &fulfill_ev.update_fulfill_htlcs[0]);
-       expect_payment_sent_without_paths!(nodes[0], payment_preimage);
-       nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &fulfill_ev.commitment_signed);
-       check_added_monitors!(nodes[0], 1);
-       let (_raa, _cs) = get_revoke_commit_msgs!(nodes[0], nodes[1].node.get_our_node_id());
-
-       // At this point nodes[1] has received 1,010k msat (10k msat more than their reserve) and can
-       // send an HTLC back (though it will go in the holding cell). Send an HTLC back and check we
-       // can get our balance.
-
-       // Get a route from nodes[1] to nodes[0] by getting a route going the other way and then flip
-       // the public key of the only hop. This works around ChannelDetails not showing the
-       // almost-claimed HTLC as available balance.
-       let (mut route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[1], 10_000);
-       route.payment_params = None; // This is all wrong, but unnecessary
-       route.paths[0].hops[0].pubkey = nodes[0].node.get_our_node_id();
-       let (_, payment_hash_2, payment_secret_2) = get_payment_preimage_hash!(nodes[0]);
-       nodes[1].node.send_payment_with_route(&route, payment_hash_2,
-               RecipientOnionFields::secret_only(payment_secret_2), PaymentId(payment_hash_2.0)).unwrap();
-
-       assert_eq!(nodes[1].node.list_channels()[0].balance_msat, 1_000_000);
-}
-
 #[test]
 fn test_channel_conf_timeout() {
        // Tests that, for inbound channels, we give up on them if the funding transaction does not
@@ -7703,13 +7897,13 @@ fn test_channel_conf_timeout() {
 
        connect_blocks(&nodes[1], 1);
        check_added_monitors!(nodes[1], 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::FundingTimedOut);
+       check_closed_event!(nodes[1], 1, ClosureReason::FundingTimedOut, [nodes[0].node.get_our_node_id()], 1000000);
        let close_ev = nodes[1].node.get_and_clear_pending_msg_events();
        assert_eq!(close_ev.len(), 1);
        match close_ev[0] {
-               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, ref node_id } => {
+               MessageSendEvent::HandleError { action: ErrorAction::DisconnectPeer { ref msg }, ref node_id } => {
                        assert_eq!(*node_id, nodes[0].node.get_our_node_id());
-                       assert_eq!(msg.data, "Channel closed because funding transaction failed to confirm within 2016 blocks");
+                       assert_eq!(msg.as_ref().unwrap().data, "Channel closed because funding transaction failed to confirm within 2016 blocks");
                },
                _ => panic!("Unexpected event"),
        }
@@ -7726,7 +7920,7 @@ fn test_override_channel_config() {
        let mut override_config = UserConfig::default();
        override_config.channel_handshake_config.our_to_self_delay = 200;
 
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, Some(override_config)).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, None, Some(override_config)).unwrap();
 
        // Assert the channel created by node0 is using the override config.
        let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
@@ -7743,7 +7937,7 @@ fn test_override_0msat_htlc_minimum() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(zero_config.clone())]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, Some(zero_config)).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 16_000_000, 12_000_000, 42, None, Some(zero_config)).unwrap();
        let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
        assert_eq!(res.htlc_minimum_msat, 1);
 
@@ -7813,7 +8007,7 @@ fn test_manually_accept_inbound_channel_request() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_accept_conf.clone())]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
+       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, Some(manually_accept_conf)).unwrap();
        let res = 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(), &res);
@@ -7863,7 +8057,7 @@ fn test_manually_reject_inbound_channel_request() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_accept_conf.clone())]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, Some(manually_accept_conf)).unwrap();
        let res = 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(), &res);
@@ -7889,70 +8083,9 @@ fn test_manually_reject_inbound_channel_request() {
                }
                _ => panic!("Unexpected event"),
        }
-       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
-}
-
-#[test]
-fn test_reject_funding_before_inbound_channel_accepted() {
-       // This tests that when `UserConfig::manually_accept_inbound_channels` is set to true, inbound
-       // channels must to be manually accepted through `ChannelManager::accept_inbound_channel` by
-       // the node operator before the counterparty sends a `FundingCreated` message. If a
-       // `FundingCreated` message is received before the channel is accepted, it should be rejected
-       // and the channel should be closed.
-       let mut manually_accept_conf = UserConfig::default();
-       manually_accept_conf.manually_accept_inbound_channels = 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(manually_accept_conf.clone())]);
-       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
-
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
-       let res = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
-       let temp_channel_id = res.temporary_channel_id;
-
-       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &res);
-
-       // Assert that `nodes[1]` has no `MessageSendEvent::SendAcceptChannel` in the `msg_events`.
-       assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
-
-       // Clear the `Event::OpenChannelRequest` event without responding to the request.
-       nodes[1].node.get_and_clear_pending_events();
-
-       // Get the `AcceptChannel` message of `nodes[1]` without calling
-       // `ChannelManager::accept_inbound_channel`, which generates a
-       // `MessageSendEvent::SendAcceptChannel` event. The message is passed to `nodes[0]`
-       // `handle_accept_channel`, which is required in order for `create_funding_transaction` to
-       // succeed when `nodes[0]` is passed to it.
-       let accept_chan_msg = {
-               let mut node_1_per_peer_lock;
-               let mut node_1_peer_state_lock;
-               let channel =  get_channel_ref!(&nodes[1], nodes[0], node_1_per_peer_lock, node_1_peer_state_lock, temp_channel_id);
-               channel.get_accept_channel_message()
-       };
-       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_chan_msg);
-
-       let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 100000, 42);
-
-       nodes[0].node.funding_transaction_generated(&temporary_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).unwrap();
-       let funding_created_msg = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
-
-       // The `funding_created_msg` should be rejected by `nodes[1]` as it hasn't accepted the channel
-       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msg);
-
-       let close_msg_ev = nodes[1].node.get_and_clear_pending_msg_events();
-       assert_eq!(close_msg_ev.len(), 1);
-
-       let expected_err = "FundingCreated message received before the channel was accepted";
-       match close_msg_ev[0] {
-               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, ref node_id, } => {
-                       assert_eq!(msg.channel_id, temp_channel_id);
-                       assert_eq!(*node_id, nodes[0].node.get_our_node_id());
-                       assert_eq!(msg.data, expected_err);
-               }
-               _ => panic!("Unexpected event"),
-       }
 
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: expected_err.to_string() });
+       // There should be no more events to process, as the channel was never opened.
+       assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
 }
 
 #[test]
@@ -7964,7 +8097,7 @@ fn test_can_not_accept_inbound_channel_twice() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(manually_accept_conf.clone())]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, Some(manually_accept_conf)).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, Some(manually_accept_conf)).unwrap();
        let res = 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(), &res);
@@ -7980,10 +8113,10 @@ fn test_can_not_accept_inbound_channel_twice() {
                        let api_res = nodes[1].node.accept_inbound_channel(&temporary_channel_id, &nodes[0].node.get_our_node_id(), 0);
                        match api_res {
                                Err(APIError::APIMisuseError { err }) => {
-                                       assert_eq!(err, "The channel isn't currently awaiting to be accepted.");
+                                       assert_eq!(err, "No such channel awaiting to be accepted.");
                                },
                                Ok(_) => panic!("Channel shouldn't be possible to be accepted twice"),
-                               Err(_) => panic!("Unexpected Error"),
+                               Err(e) => panic!("Unexpected Error {:?}", e),
                        }
                }
                _ => panic!("Unexpected event"),
@@ -8008,14 +8141,14 @@ fn test_can_not_accept_unknown_inbound_channel() {
        let node_chanmgr = create_node_chanmgrs(2, &node_cfg, &[None, None]);
        let nodes = create_network(2, &node_cfg, &node_chanmgr);
 
-       let unknown_channel_id = [0; 32];
+       let unknown_channel_id = ChannelId::new_zero();
        let api_res = nodes[0].node.accept_inbound_channel(&unknown_channel_id, &nodes[1].node.get_our_node_id(), 0);
        match api_res {
-               Err(APIError::ChannelUnavailable { err }) => {
-                       assert_eq!(err, format!("Channel with id {} not found for the passed counterparty node_id {}", log_bytes!(unknown_channel_id), nodes[1].node.get_our_node_id()));
+               Err(APIError::APIMisuseError { err }) => {
+                       assert_eq!(err, "No such channel awaiting to be accepted.");
                },
                Ok(_) => panic!("It shouldn't be possible to accept an unkown channel"),
-               Err(_) => panic!("Unexpected Error"),
+               Err(e) => panic!("Unexpected Error: {:?}", e),
        }
 }
 
@@ -8086,8 +8219,12 @@ fn test_onion_value_mpp_set_calculation() {
                                RecipientOnionFields::secret_only(our_payment_secret), height + 1, &None).unwrap();
                        // 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);
+                       if let msgs::OutboundOnionPayload::Receive {
+                               ref mut sender_intended_htlc_amt_msat, ..
+                       } = onion_payloads[1] {
+                               *sender_intended_htlc_amt_msat = 99_000;
+                       } else { panic!() }
+                       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;
                }
 
@@ -8254,74 +8391,6 @@ fn test_preimage_storage() {
        }
 }
 
-#[test]
-#[allow(deprecated)]
-fn test_secret_timeout() {
-       // Simple test of payment secret storage time outs. After
-       // `create_inbound_payment(_for_hash)_legacy` is removed, this test will be removed as well.
-       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, None]);
-       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
-
-       create_announced_chan_between_nodes(&nodes, 0, 1).0.contents.short_channel_id;
-
-       let (payment_hash, payment_secret_1) = nodes[1].node.create_inbound_payment_legacy(Some(100_000), 2).unwrap();
-
-       // We should fail to register the same payment hash twice, at least until we've connected a
-       // block with time 7200 + CHAN_CONFIRM_DEPTH + 1.
-       if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash_legacy(payment_hash, Some(100_000), 2) {
-               assert_eq!(err, "Duplicate payment hash");
-       } else { panic!(); }
-       let mut block = {
-               let node_1_blocks = nodes[1].blocks.lock().unwrap();
-               Block {
-                       header: BlockHeader {
-                               version: 0x2000000,
-                               prev_blockhash: node_1_blocks.last().unwrap().0.block_hash(),
-                               merkle_root: TxMerkleNode::all_zeros(),
-                               time: node_1_blocks.len() as u32 + 7200, bits: 42, nonce: 42 },
-                       txdata: vec![],
-               }
-       };
-       connect_block(&nodes[1], &block);
-       if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash_legacy(payment_hash, Some(100_000), 2) {
-               assert_eq!(err, "Duplicate payment hash");
-       } else { panic!(); }
-
-       // If we then connect the second block, we should be able to register the same payment hash
-       // again (this time getting a new payment secret).
-       block.header.prev_blockhash = block.header.block_hash();
-       block.header.time += 1;
-       connect_block(&nodes[1], &block);
-       let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash_legacy(payment_hash, Some(100_000), 2).unwrap();
-       assert_ne!(payment_secret_1, our_payment_secret);
-
-       {
-               let (route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[1], 100_000);
-               nodes[0].node.send_payment_with_route(&route, payment_hash,
-                       RecipientOnionFields::secret_only(our_payment_secret), PaymentId(payment_hash.0)).unwrap();
-               check_added_monitors!(nodes[0], 1);
-               let mut events = nodes[0].node.get_and_clear_pending_msg_events();
-               let mut payment_event = SendEvent::from_event(events.pop().unwrap());
-               nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
-               commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false);
-       }
-       // Note that after leaving the above scope we have no knowledge of any arguments or return
-       // values from previous calls.
-       expect_pending_htlcs_forwardable!(nodes[1]);
-       let events = nodes[1].node.get_and_clear_pending_events();
-       assert_eq!(events.len(), 1);
-       match events[0] {
-               Event::PaymentClaimable { purpose: PaymentPurpose::InvoicePayment { payment_preimage, payment_secret }, .. } => {
-                       assert!(payment_preimage.is_none());
-                       assert_eq!(payment_secret, our_payment_secret);
-                       // We don't actually have the payment preimage with which to claim this payment!
-               },
-               _ => panic!("Unexpected event"),
-       }
-}
-
 #[test]
 fn test_bad_secret_hash() {
        // Simple test of unregistered payment hash/invalid payment secret handling
@@ -8412,7 +8481,7 @@ fn test_update_err_monitor_lockdown() {
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000);
 
        // Route a HTLC from node 0 to node 1 (but don't settle)
-       let (preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 9_000_000);
+       let (preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 9_000_000);
 
        // Copy ChainMonitor to simulate a watchtower and update block height of node 0 until its ChannelMonitor timeout HTLC onchain
        let chain_source = test_utils::TestChainSource::new(Network::Testnet);
@@ -8421,17 +8490,16 @@ fn test_update_err_monitor_lockdown() {
        let watchtower = {
                let new_monitor = {
                        let monitor = nodes[0].chain_monitor.chain_monitor.get_monitor(outpoint).unwrap();
-                       let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<EnforcingSigner>)>::read(
+                       let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<TestChannelSigner>)>::read(
                                        &mut io::Cursor::new(&monitor.encode()), (nodes[0].keys_manager, nodes[0].keys_manager)).unwrap().1;
                        assert!(new_monitor == *monitor);
                        new_monitor
                };
                let watchtower = test_utils::TestChainMonitor::new(Some(&chain_source), &chanmon_cfgs[0].tx_broadcaster, &logger, &chanmon_cfgs[0].fee_estimator, &persister, &node_cfgs[0].keys_manager);
-               assert_eq!(watchtower.watch_channel(outpoint, new_monitor), ChannelMonitorUpdateStatus::Completed);
+               assert_eq!(watchtower.watch_channel(outpoint, new_monitor), Ok(ChannelMonitorUpdateStatus::Completed));
                watchtower
        };
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       let block = Block { header, txdata: vec![] };
+       let block = create_dummy_block(BlockHash::all_zeros(), 42, Vec::new());
        // Make the tx_broadcaster aware of enough blocks that it doesn't think we're violating
        // transaction lock time requirements here.
        chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize(200, (block.clone(), 200));
@@ -8448,11 +8516,14 @@ fn test_update_err_monitor_lockdown() {
        {
                let mut node_0_per_peer_lock;
                let mut node_0_peer_state_lock;
-               let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2);
-               if let Ok(update) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
-                       assert_eq!(watchtower.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::PermanentFailure);
-                       assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
-               } else { assert!(false); }
+               if let ChannelPhase::Funded(ref mut channel) = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2) {
+                       if let Ok(Some(update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
+                               assert_eq!(watchtower.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::InProgress);
+                               assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
+                       } else { assert!(false); }
+               } else {
+                       assert!(false);
+               }
        }
        // Our local monitor is in-sync and hasn't processed yet timeout
        check_added_monitors!(nodes[0], 1);
@@ -8492,17 +8563,16 @@ fn test_concurrent_monitor_claim() {
        let watchtower_alice = {
                let new_monitor = {
                        let monitor = nodes[0].chain_monitor.chain_monitor.get_monitor(outpoint).unwrap();
-                       let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<EnforcingSigner>)>::read(
+                       let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<TestChannelSigner>)>::read(
                                        &mut io::Cursor::new(&monitor.encode()), (nodes[0].keys_manager, nodes[0].keys_manager)).unwrap().1;
                        assert!(new_monitor == *monitor);
                        new_monitor
                };
                let watchtower = test_utils::TestChainMonitor::new(Some(&chain_source), &alice_broadcaster, &logger, &chanmon_cfgs[0].fee_estimator, &persister, &node_cfgs[0].keys_manager);
-               assert_eq!(watchtower.watch_channel(outpoint, new_monitor), ChannelMonitorUpdateStatus::Completed);
+               assert_eq!(watchtower.watch_channel(outpoint, new_monitor), Ok(ChannelMonitorUpdateStatus::Completed));
                watchtower
        };
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       let block = Block { header, txdata: vec![] };
+       let block = create_dummy_block(BlockHash::all_zeros(), 42, Vec::new());
        // Make Alice aware of enough blocks that it doesn't think we're violating transaction lock time
        // requirements here.
        const HTLC_TIMEOUT_BROADCAST: u32 = CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS;
@@ -8510,10 +8580,11 @@ fn test_concurrent_monitor_claim() {
        watchtower_alice.chain_monitor.block_connected(&block, HTLC_TIMEOUT_BROADCAST);
 
        // Watchtower Alice should have broadcast a commitment/HTLC-timeout
-       let alice_state = {
+       {
                let mut txn = alice_broadcaster.txn_broadcast();
                assert_eq!(txn.len(), 2);
-               txn.remove(0)
+               check_spends!(txn[0], chan_1.3);
+               check_spends!(txn[1], txn[0]);
        };
 
        // Copy ChainMonitor to simulate watchtower Bob and make it receive a commitment update first.
@@ -8524,17 +8595,16 @@ fn test_concurrent_monitor_claim() {
        let watchtower_bob = {
                let new_monitor = {
                        let monitor = nodes[0].chain_monitor.chain_monitor.get_monitor(outpoint).unwrap();
-                       let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<EnforcingSigner>)>::read(
+                       let new_monitor = <(BlockHash, channelmonitor::ChannelMonitor<TestChannelSigner>)>::read(
                                        &mut io::Cursor::new(&monitor.encode()), (nodes[0].keys_manager, nodes[0].keys_manager)).unwrap().1;
                        assert!(new_monitor == *monitor);
                        new_monitor
                };
                let watchtower = test_utils::TestChainMonitor::new(Some(&chain_source), &bob_broadcaster, &logger, &chanmon_cfgs[0].fee_estimator, &persister, &node_cfgs[0].keys_manager);
-               assert_eq!(watchtower.watch_channel(outpoint, new_monitor), ChannelMonitorUpdateStatus::Completed);
+               assert_eq!(watchtower.watch_channel(outpoint, new_monitor), Ok(ChannelMonitorUpdateStatus::Completed));
                watchtower
        };
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       watchtower_bob.chain_monitor.block_connected(&Block { header, txdata: vec![] }, HTLC_TIMEOUT_BROADCAST - 1);
+       watchtower_bob.chain_monitor.block_connected(&create_dummy_block(BlockHash::all_zeros(), 42, Vec::new()), HTLC_TIMEOUT_BROADCAST - 1);
 
        // Route another payment to generate another update with still previous HTLC pending
        let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], 3000000);
@@ -8548,20 +8618,22 @@ fn test_concurrent_monitor_claim() {
        {
                let mut node_0_per_peer_lock;
                let mut node_0_peer_state_lock;
-               let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2);
-               if let Ok(update) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
-                       // Watchtower Alice should already have seen the block and reject the update
-                       assert_eq!(watchtower_alice.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::PermanentFailure);
-                       assert_eq!(watchtower_bob.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
-                       assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
-               } else { assert!(false); }
+               if let ChannelPhase::Funded(ref mut channel) = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2) {
+                       if let Ok(Some(update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) {
+                               // Watchtower Alice should already have seen the block and reject the update
+                               assert_eq!(watchtower_alice.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::InProgress);
+                               assert_eq!(watchtower_bob.chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
+                               assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, &update), ChannelMonitorUpdateStatus::Completed);
+                       } else { assert!(false); }
+               } else {
+                       assert!(false);
+               }
        }
        // Our local monitor is in-sync and hasn't processed yet timeout
        check_added_monitors!(nodes[0], 1);
 
        //// Provide one more block to watchtower Bob, expect broadcast of commitment and HTLC-Timeout
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       watchtower_bob.chain_monitor.block_connected(&Block { header, txdata: vec![] }, HTLC_TIMEOUT_BROADCAST);
+       watchtower_bob.chain_monitor.block_connected(&create_dummy_block(BlockHash::all_zeros(), 42, Vec::new()), HTLC_TIMEOUT_BROADCAST);
 
        // Watchtower Bob should have broadcast a commitment/HTLC-timeout
        let bob_state_y;
@@ -8572,20 +8644,17 @@ fn test_concurrent_monitor_claim() {
        };
 
        // We confirm Bob's state Y on Alice, she should broadcast a HTLC-timeout
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: BlockHash::all_zeros(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
        let height = HTLC_TIMEOUT_BROADCAST + 1;
        connect_blocks(&nodes[0], height - nodes[0].best_block_info().1);
        check_closed_broadcast(&nodes[0], 1, true);
-       check_closed_event(&nodes[0], 1, ClosureReason::CommitmentTxConfirmed, false);
-       watchtower_alice.chain_monitor.block_connected(&Block { header, txdata: vec![bob_state_y.clone()] }, height);
+       check_closed_event!(&nodes[0], 1, ClosureReason::HolderForceClosed, false,
+               [nodes[1].node.get_our_node_id()], 100000);
+       watchtower_alice.chain_monitor.block_connected(&create_dummy_block(BlockHash::all_zeros(), 42, vec![bob_state_y.clone()]), height);
        check_added_monitors(&nodes[0], 1);
        {
                let htlc_txn = alice_broadcaster.txn_broadcast();
-               assert_eq!(htlc_txn.len(), 2);
+               assert_eq!(htlc_txn.len(), 1);
                check_spends!(htlc_txn[0], bob_state_y);
-               // Alice doesn't clean up the old HTLC claim since it hasn't seen a conflicting spend for
-               // it. However, she should, because it now has an invalid parent.
-               check_spends!(htlc_txn[1], alice_state);
        }
 }
 
@@ -8608,7 +8677,7 @@ fn test_pre_lockin_no_chan_closed_update() {
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
        // Create an initial channel
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
        let mut open_chan_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(), &open_chan_msg);
        let accept_chan_msg = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
@@ -8621,10 +8690,11 @@ fn test_pre_lockin_no_chan_closed_update() {
        check_added_monitors!(nodes[0], 0);
 
        let funding_created_msg = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
-       let channel_id = crate::chain::transaction::OutPoint { txid: funding_created_msg.funding_txid, index: funding_created_msg.funding_output_index }.to_channel_id();
+       let channel_id = ChannelId::v1_from_funding_outpoint(crate::chain::transaction::OutPoint { txid: funding_created_msg.funding_txid, index: funding_created_msg.funding_output_index });
        nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msgs::ErrorMessage { channel_id, data: "Hi".to_owned() });
        assert!(nodes[0].chain_monitor.added_monitors.lock().unwrap().is_empty());
-       check_closed_event!(nodes[0], 2, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString("Hi".to_string()) }, true);
+       check_closed_event!(nodes[0], 2, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString("Hi".to_string()) }, true,
+               [nodes[1].node.get_our_node_id()], 100000);
 }
 
 #[test]
@@ -8645,21 +8715,21 @@ fn test_htlc_no_detection() {
        let chan_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
 
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 1_000_000);
-       let (_, our_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 2_000_000);
+       let (_, our_payment_hash, ..) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 2_000_000);
        let local_txn = get_local_commitment_txn!(nodes[0], chan_1.2);
        assert_eq!(local_txn[0].input.len(), 1);
        assert_eq!(local_txn[0].output.len(), 3);
        check_spends!(local_txn[0], chan_1.3);
 
        // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx
-       let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header, txdata: vec![local_txn[0].clone()] });
+       let block = create_dummy_block(nodes[0].best_block_hash(), 42, vec![local_txn[0].clone()]);
+       connect_block(&nodes[0], &block);
        // We deliberately connect the local tx twice as this should provoke a failure calling
        // this test before #653 fix.
-       chain::Listen::block_connected(&nodes[0].chain_monitor.chain_monitor, &Block { header, txdata: vec![local_txn[0].clone()] }, nodes[0].best_block_info().1 + 1);
+       chain::Listen::block_connected(&nodes[0].chain_monitor.chain_monitor, &block, nodes[0].best_block_info().1 + 1);
        check_closed_broadcast!(nodes[0], true);
        check_added_monitors!(nodes[0], 1);
-       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+       check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed, [nodes[1].node.get_our_node_id()], 100000);
        connect_blocks(&nodes[0], TEST_FINAL_CLTV);
 
        let htlc_timeout = {
@@ -8671,8 +8741,7 @@ fn test_htlc_no_detection() {
                node_txn[0].clone()
        };
 
-       let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42 };
-       connect_block(&nodes[0], &Block { header: header_201, txdata: vec![htlc_timeout.clone()] });
+       connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![htlc_timeout.clone()]));
        connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
        expect_payment_failed!(nodes[0], our_payment_hash, false);
 }
@@ -8702,7 +8771,7 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
 
        // Steps (1) and (2):
        // Send an HTLC Alice --> Bob --> Carol, but Carol doesn't settle the HTLC back.
-       let (payment_preimage, payment_hash, _payment_secret) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
+       let (payment_preimage, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3_000_000);
 
        // Check that Alice's commitment transaction now contains an output for this HTLC.
        let alice_txn = get_local_commitment_txn!(nodes[0], chan_ab.2);
@@ -8726,18 +8795,17 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
        nodes[force_closing_node].node.force_close_broadcasting_latest_txn(&chan_ab.2, &nodes[counterparty_node].node.get_our_node_id()).unwrap();
        check_closed_broadcast!(nodes[force_closing_node], true);
        check_added_monitors!(nodes[force_closing_node], 1);
-       check_closed_event!(nodes[force_closing_node], 1, ClosureReason::HolderForceClosed);
+       check_closed_event!(nodes[force_closing_node], 1, ClosureReason::HolderForceClosed, [nodes[counterparty_node].node.get_our_node_id()], 100000);
        if go_onchain_before_fulfill {
                let txn_to_broadcast = match broadcast_alice {
                        true => alice_txn.clone(),
                        false => get_local_commitment_txn!(nodes[1], chan_ab.2)
                };
-               let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-               connect_block(&nodes[1], &Block { header, txdata: vec![txn_to_broadcast[0].clone()]});
+               connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![txn_to_broadcast[0].clone()]));
                if broadcast_alice {
                        check_closed_broadcast!(nodes[1], true);
                        check_added_monitors!(nodes[1], 1);
-                       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+                       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
                }
        }
 
@@ -8756,7 +8824,8 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
        assert_eq!(carol_updates.update_fulfill_htlcs.len(), 1);
 
        nodes[1].node.handle_update_fulfill_htlc(&nodes[2].node.get_our_node_id(), &carol_updates.update_fulfill_htlcs[0]);
-       expect_payment_forwarded!(nodes[1], nodes[0], nodes[2], if go_onchain_before_fulfill || force_closing_node == 1 { None } else { Some(1000) }, false, false);
+       let went_onchain = go_onchain_before_fulfill || force_closing_node == 1;
+       expect_payment_forwarded!(nodes[1], nodes[0], nodes[2], if went_onchain { None } else { Some(1000) }, went_onchain, false);
        // If Alice broadcasted but Bob doesn't know yet, here he prepares to tell her about the preimage.
        if !go_onchain_before_fulfill && broadcast_alice {
                let events = nodes[1].node.get_and_clear_pending_msg_events();
@@ -8812,20 +8881,24 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
        let mut txn_to_broadcast = alice_txn.clone();
        if !broadcast_alice { txn_to_broadcast = get_local_commitment_txn!(nodes[1], chan_ab.2); }
        if !go_onchain_before_fulfill {
-               let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: 42, bits: 42, nonce: 42};
-               connect_block(&nodes[1], &Block { header, txdata: vec![txn_to_broadcast[0].clone()]});
+               connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![txn_to_broadcast[0].clone()]));
                // If Bob was the one to force-close, he will have already passed these checks earlier.
                if broadcast_alice {
                        check_closed_broadcast!(nodes[1], true);
                        check_added_monitors!(nodes[1], 1);
-                       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+                       check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
                }
                let mut bob_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
                if broadcast_alice {
                        assert_eq!(bob_txn.len(), 1);
                        check_spends!(bob_txn[0], txn_to_broadcast[0]);
                } else {
-                       assert_eq!(bob_txn.len(), 2);
+                       if nodes[1].connect_style.borrow().updates_best_block_first() {
+                               assert_eq!(bob_txn.len(), 3);
+                               assert_eq!(bob_txn[0].txid(), bob_txn[1].txid());
+                       } else {
+                               assert_eq!(bob_txn.len(), 2);
+                       }
                        check_spends!(bob_txn[0], chan_ab.3);
                }
        }
@@ -8841,15 +8914,16 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain
                // If Alice force-closed, Bob only broadcasts a HTLC-output-claiming transaction. Otherwise,
                // Bob force-closed and broadcasts the commitment transaction along with a
                // HTLC-output-claiming transaction.
-               let bob_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
+               let mut bob_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
                if broadcast_alice {
                        assert_eq!(bob_txn.len(), 1);
                        check_spends!(bob_txn[0], txn_to_broadcast[0]);
                        assert_eq!(bob_txn[0].input[0].witness.last().unwrap().len(), script_weight);
                } else {
-                       assert_eq!(bob_txn.len(), 2);
-                       check_spends!(bob_txn[1], txn_to_broadcast[0]);
-                       assert_eq!(bob_txn[1].input[0].witness.last().unwrap().len(), script_weight);
+                       assert_eq!(bob_txn.len(), if nodes[1].connect_style.borrow().updates_best_block_first() { 3 } else { 2 });
+                       let htlc_tx = bob_txn.pop().unwrap();
+                       check_spends!(htlc_tx, txn_to_broadcast[0]);
+                       assert_eq!(htlc_tx.input[0].witness.last().unwrap().len(), script_weight);
                }
        }
 }
@@ -8872,11 +8946,11 @@ fn test_duplicate_temporary_channel_id_from_different_peers() {
        let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
 
        // Create an first channel channel
-       nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+       nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
        let mut open_chan_msg_chan_1_0 = get_event_msg!(nodes[1], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
 
        // Create an second channel
-       nodes[2].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 43, None).unwrap();
+       nodes[2].node.create_channel(nodes[0].node.get_our_node_id(), 100000, 10001, 43, None, None).unwrap();
        let mut open_chan_msg_chan_2_0 = get_event_msg!(nodes[2], MessageSendEvent::SendOpenChannel, nodes[0].node.get_our_node_id());
 
        // Modify the `OpenChannel` from `nodes[2]` to `nodes[0]` to ensure that it uses the same
@@ -8913,39 +8987,182 @@ fn test_duplicate_temporary_channel_id_from_different_peers() {
 }
 
 #[test]
-fn test_duplicate_chan_id() {
-       // Test that if a given peer tries to open a channel with the same channel_id as one that is
-       // already open we reject it and keep the old channel.
+fn test_peer_funding_sidechannel() {
+       // Test that if a peer somehow learns which txid we'll use for our channel funding before we
+       // receive `funding_transaction_generated` the peer cannot cause us to crash. We'd previously
+       // assumed that LDK would receive `funding_transaction_generated` prior to our peer learning
+       // the txid and panicked if the peer tried to open a redundant channel to us with the same
+       // funding outpoint.
        //
-       // Previously, full_stack_target managed to figure out that if you tried to open two channels
-       // with the same funding output (ie post-funding channel_id), we'd create a monitor update for
-       // the existing channel when we detect the duplicate new channel, screwing up our monitor
-       // updating logic for the existing channel.
-       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, None]);
-       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+       // While this assumption is generally safe, some users may have out-of-band protocols where
+       // they notify their LSP about a funding outpoint first, or this may be violated in the future
+       // with collaborative transaction construction protocols, i.e. dual-funding.
+       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, None, None]);
+       let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
 
-       // Create an initial channel
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
-       let mut open_chan_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(), &open_chan_msg);
-       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
+       let temp_chan_id_ab = exchange_open_accept_chan(&nodes[0], &nodes[1], 1_000_000, 0);
+       let temp_chan_id_ca = exchange_open_accept_chan(&nodes[2], &nodes[0], 1_000_000, 0);
 
-       // Try to create a second channel with the same temporary_channel_id as the first and check
-       // that it is rejected.
-       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_chan_msg);
-       {
-               let events = nodes[1].node.get_and_clear_pending_msg_events();
-               assert_eq!(events.len(), 1);
-               match events[0] {
-                       MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id } => {
-                               // Technically, at this point, nodes[1] would be justified in thinking both the
-                               // first (valid) and second (invalid) channels are closed, given they both have
-                               // the same non-temporary channel_id. However, currently we do not, so we just
-                               // move forward with it.
-                               assert_eq!(msg.channel_id, open_chan_msg.temporary_channel_id);
-                               assert_eq!(node_id, nodes[0].node.get_our_node_id());
+       let (_, tx, funding_output) =
+               create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42);
+
+       let cs_funding_events = nodes[2].node.get_and_clear_pending_events();
+       assert_eq!(cs_funding_events.len(), 1);
+       match cs_funding_events[0] {
+               Event::FundingGenerationReady { .. } => {}
+               _ => panic!("Unexpected event {:?}", cs_funding_events),
+       }
+
+       nodes[2].node.funding_transaction_generated_unchecked(&temp_chan_id_ca, &nodes[0].node.get_our_node_id(), tx.clone(), funding_output.index).unwrap();
+       let funding_created_msg = get_event_msg!(nodes[2], MessageSendEvent::SendFundingCreated, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_funding_created(&nodes[2].node.get_our_node_id(), &funding_created_msg);
+       get_event_msg!(nodes[0], MessageSendEvent::SendFundingSigned, nodes[2].node.get_our_node_id());
+       expect_channel_pending_event(&nodes[0], &nodes[2].node.get_our_node_id());
+       check_added_monitors!(nodes[0], 1);
+
+       let res = nodes[0].node.funding_transaction_generated(&temp_chan_id_ab, &nodes[1].node.get_our_node_id(), tx.clone());
+       let err_msg = format!("{:?}", res.unwrap_err());
+       assert!(err_msg.contains("An existing channel using outpoint "));
+       assert!(err_msg.contains(" is open with peer"));
+       // Even though the last funding_transaction_generated errored, it still generated a
+       // SendFundingCreated. However, when the peer responds with a funding_signed it will send the
+       // appropriate error message.
+       let as_funding_created = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
+       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &as_funding_created);
+       check_added_monitors!(nodes[1], 1);
+       expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
+       let reason = ClosureReason::ProcessingError { err: format!("An existing channel using outpoint {} is open with peer {}", funding_output, nodes[2].node.get_our_node_id()), };
+       check_closed_events(&nodes[0], &[ExpectedCloseEvent::from_id_reason(ChannelId::v1_from_funding_outpoint(funding_output), true, reason)]);
+
+       let funding_signed = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed);
+       get_err_msg(&nodes[0], &nodes[1].node.get_our_node_id());
+}
+
+#[test]
+fn test_duplicate_conflicting_funding_from_second_peer() {
+       // Test that if a user tries to fund a channel with a funding outpoint they'd previously used
+       // we don't try to remove the previous ChannelMonitor. This is largely a test to ensure we
+       // don't regress in the fuzzer, as such funding getting passed our outpoint-matches checks
+       // implies the user (and our counterparty) has reused cryptographic keys across channels, which
+       // we require the user not do.
+       let chanmon_cfgs = create_chanmon_cfgs(4);
+       let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+       let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+       let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+       let temp_chan_id = exchange_open_accept_chan(&nodes[0], &nodes[1], 1_000_000, 0);
+
+       let (_, tx, funding_output) =
+               create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42);
+
+       // Now that we have a funding outpoint, create a dummy `ChannelMonitor` and insert it into
+       // nodes[0]'s ChainMonitor so that the initial `ChannelMonitor` write fails.
+       let dummy_chan_id = create_chan_between_nodes(&nodes[2], &nodes[3]).3;
+       let dummy_monitor = get_monitor!(nodes[2], dummy_chan_id).clone();
+       nodes[0].chain_monitor.chain_monitor.watch_channel(funding_output, dummy_monitor).unwrap();
+
+       nodes[0].node.funding_transaction_generated(&temp_chan_id, &nodes[1].node.get_our_node_id(), tx.clone()).unwrap();
+
+       let mut funding_created_msg = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
+       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msg);
+       let funding_signed_msg = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       check_added_monitors!(nodes[1], 1);
+       expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
+
+       nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed_msg);
+       // At this point, the channel should be closed, after having generated one monitor write (the
+       // watch_channel call which failed), but zero monitor updates.
+       check_added_monitors!(nodes[0], 1);
+       get_err_msg(&nodes[0], &nodes[1].node.get_our_node_id());
+       let err_reason = ClosureReason::ProcessingError { err: "Channel funding outpoint was a duplicate".to_owned() };
+       check_closed_events(&nodes[0], &[ExpectedCloseEvent::from_id_reason(funding_signed_msg.channel_id, true, err_reason)]);
+}
+
+#[test]
+fn test_duplicate_funding_err_in_funding() {
+       // Test that if we have a live channel with one peer, then another peer comes along and tries
+       // to create a second channel with the same txid we'll fail and not overwrite the
+       // outpoint_to_peer map in `ChannelManager`.
+       //
+       // This was previously broken.
+       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, None, None]);
+       let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       let (_, _, _, real_channel_id, funding_tx) = create_chan_between_nodes(&nodes[0], &nodes[1]);
+       let real_chan_funding_txo = chain::transaction::OutPoint { txid: funding_tx.txid(), index: 0 };
+       assert_eq!(ChannelId::v1_from_funding_outpoint(real_chan_funding_txo), real_channel_id);
+
+       nodes[2].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
+       let mut open_chan_msg = get_event_msg!(nodes[2], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+       let node_c_temp_chan_id = open_chan_msg.temporary_channel_id;
+       open_chan_msg.temporary_channel_id = real_channel_id;
+       nodes[1].node.handle_open_channel(&nodes[2].node.get_our_node_id(), &open_chan_msg);
+       let mut accept_chan_msg = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[2].node.get_our_node_id());
+       accept_chan_msg.temporary_channel_id = node_c_temp_chan_id;
+       nodes[2].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_chan_msg);
+
+       // Now that we have a second channel with the same funding txo, send a bogus funding message
+       // and let nodes[1] remove the inbound channel.
+       let (_, funding_tx, _) = create_funding_transaction(&nodes[2], &nodes[1].node.get_our_node_id(), 100_000, 42);
+
+       nodes[2].node.funding_transaction_generated(&node_c_temp_chan_id, &nodes[1].node.get_our_node_id(), funding_tx).unwrap();
+
+       let mut funding_created_msg = get_event_msg!(nodes[2], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
+       funding_created_msg.temporary_channel_id = real_channel_id;
+       // Make the signature invalid by changing the funding output
+       funding_created_msg.funding_output_index += 10;
+       nodes[1].node.handle_funding_created(&nodes[2].node.get_our_node_id(), &funding_created_msg);
+       get_err_msg(&nodes[1], &nodes[2].node.get_our_node_id());
+       let err = "Invalid funding_created signature from peer".to_owned();
+       let reason = ClosureReason::ProcessingError { err };
+       let expected_closing = ExpectedCloseEvent::from_id_reason(real_channel_id, false, reason);
+       check_closed_events(&nodes[1], &[expected_closing]);
+
+       assert_eq!(
+               *nodes[1].node.outpoint_to_peer.lock().unwrap().get(&real_chan_funding_txo).unwrap(),
+               nodes[0].node.get_our_node_id()
+       );
+}
+
+#[test]
+fn test_duplicate_chan_id() {
+       // Test that if a given peer tries to open a channel with the same channel_id as one that is
+       // already open we reject it and keep the old channel.
+       //
+       // Previously, full_stack_target managed to figure out that if you tried to open two channels
+       // with the same funding output (ie post-funding channel_id), we'd create a monitor update for
+       // the existing channel when we detect the duplicate new channel, screwing up our monitor
+       // updating logic for the existing channel.
+       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, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       // Create an initial channel
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
+       let mut open_chan_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(), &open_chan_msg);
+       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
+
+       // Try to create a second channel with the same temporary_channel_id as the first and check
+       // that it is rejected.
+       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_chan_msg);
+       {
+               let events = nodes[1].node.get_and_clear_pending_msg_events();
+               assert_eq!(events.len(), 1);
+               match events[0] {
+                       MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id } => {
+                               // Technically, at this point, nodes[1] would be justified in thinking both the
+                               // first (valid) and second (invalid) channels are closed, given they both have
+                               // the same non-temporary channel_id. However, currently we do not, so we just
+                               // move forward with it.
+                               assert_eq!(msg.channel_id, open_chan_msg.temporary_channel_id);
+                               assert_eq!(node_id, nodes[0].node.get_our_node_id());
                        },
                        _ => panic!("Unexpected event"),
                }
@@ -8970,7 +9187,7 @@ fn test_duplicate_chan_id() {
        let funding_signed_msg = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
 
        let funding_outpoint = crate::chain::transaction::OutPoint { txid: funding_created_msg.funding_txid, index: funding_created_msg.funding_output_index };
-       let channel_id = funding_outpoint.to_channel_id();
+       let channel_id = ChannelId::v1_from_funding_outpoint(funding_outpoint);
 
        // Now we have the first channel past funding_created (ie it has a txid-based channel_id, not a
        // temporary one).
@@ -8995,7 +9212,7 @@ fn test_duplicate_chan_id() {
        }
 
        // Now try to create a second channel which has a duplicate funding output.
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
        let open_chan_2_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(), &open_chan_2_msg);
        nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
@@ -9004,13 +9221,17 @@ fn test_duplicate_chan_id() {
        let funding_created = {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let mut a_peer_state = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
-               // Once we call `get_outbound_funding_created` the channel has a duplicate channel_id as
+               // Once we call `get_funding_created` the channel has a duplicate channel_id as
                // another channel in the ChannelManager - an invalid state. Thus, we'd panic later when we
                // try to create another channel. Instead, we drop the channel entirely here (leaving the
                // channelmanager in a possibly nonsense state instead).
-               let mut as_chan = a_peer_state.channel_by_id.remove(&open_chan_2_msg.temporary_channel_id).unwrap();
-               let logger = test_utils::TestLogger::new();
-               as_chan.get_outbound_funding_created(tx.clone(), funding_outpoint, &&logger).unwrap()
+               match a_peer_state.channel_by_id.remove(&open_chan_2_msg.temporary_channel_id).unwrap() {
+                       ChannelPhase::UnfundedOutboundV1(mut chan) => {
+                               let logger = test_utils::TestLogger::new();
+                               chan.get_funding_created(tx.clone(), funding_outpoint, false, &&logger).map_err(|_| ()).unwrap()
+                       },
+                       _ => panic!("Unexpected ChannelPhase variant"),
+               }.unwrap()
        };
        check_added_monitors!(nodes[0], 0);
        nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created);
@@ -9018,6 +9239,12 @@ fn test_duplicate_chan_id() {
        // without trying to persist the `ChannelMonitor`.
        check_added_monitors!(nodes[1], 0);
 
+       check_closed_events(&nodes[1], &[
+               ExpectedCloseEvent::from_id_reason(funding_created.temporary_channel_id, false, ClosureReason::ProcessingError {
+                       err: "Already had channel with the new channel_id".to_owned()
+               })
+       ]);
+
        // ...still, nodes[1] will reject the duplicate channel.
        {
                let events = nodes[1].node.get_and_clear_pending_msg_events();
@@ -9085,7 +9312,8 @@ fn test_error_chans_closed() {
        nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msgs::ErrorMessage { channel_id: chan_2.2, data: "ERR".to_owned() });
        check_added_monitors!(nodes[0], 1);
        check_closed_broadcast!(nodes[0], false);
-       check_closed_event!(nodes[0], 1, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString("ERR".to_string()) });
+       check_closed_event!(nodes[0], 1, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString("ERR".to_string()) },
+               [nodes[1].node.get_our_node_id()], 100000);
        assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0).len(), 1);
        assert_eq!(nodes[0].node.list_usable_channels().len(), 2);
        assert!(nodes[0].node.list_usable_channels()[0].channel_id == chan_1.2 || nodes[0].node.list_usable_channels()[1].channel_id == chan_1.2);
@@ -9093,9 +9321,10 @@ fn test_error_chans_closed() {
 
        // A null channel ID should close all channels
        let _chan_4 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
-       nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msgs::ErrorMessage { channel_id: [0; 32], data: "ERR".to_owned() });
+       nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &msgs::ErrorMessage { channel_id: ChannelId::new_zero(), data: "ERR".to_owned() });
        check_added_monitors!(nodes[0], 2);
-       check_closed_event!(nodes[0], 2, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString("ERR".to_string()) });
+       check_closed_event!(nodes[0], 2, ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString("ERR".to_string()) },
+               [nodes[1].node.get_our_node_id(); 2], 100000);
        let events = nodes[0].node.get_and_clear_pending_msg_events();
        assert_eq!(events.len(), 2);
        match events[0] {
@@ -9137,7 +9366,7 @@ fn test_invalid_funding_tx() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 10_000, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 10_000, 42, None, None).unwrap();
        nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()));
        nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
 
@@ -9148,10 +9377,10 @@ fn test_invalid_funding_tx() {
        // a panic as we'd try to extract a 32 byte preimage from a witness element without checking
        // its length.
        let mut wit_program: Vec<u8> = channelmonitor::deliberately_bogus_accepted_htlc_witness_program();
-       let wit_program_script: Script = wit_program.into();
+       let wit_program_script: ScriptBuf = wit_program.into();
        for output in tx.output.iter_mut() {
                // Make the confirmed funding transaction have a bogus script_pubkey
-               output.script_pubkey = Script::new_v0_p2wsh(&wit_program_script.wscript_hash());
+               output.script_pubkey = ScriptBuf::new_v0_p2wsh(&wit_program_script.wscript_hash());
        }
 
        nodes[0].node.funding_transaction_generated_unchecked(&temporary_channel_id, &nodes[1].node.get_our_node_id(), tx.clone(), 0).unwrap();
@@ -9172,14 +9401,15 @@ fn test_invalid_funding_tx() {
 
        let expected_err = "funding tx had wrong script/value or output index";
        confirm_transaction_at(&nodes[1], &tx, 1);
-       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: expected_err.to_string() });
+       check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError { err: expected_err.to_string() },
+               [nodes[0].node.get_our_node_id()], 100000);
        check_added_monitors!(nodes[1], 1);
        let events_2 = nodes[1].node.get_and_clear_pending_msg_events();
        assert_eq!(events_2.len(), 1);
        if let MessageSendEvent::HandleError { node_id, action } = &events_2[0] {
                assert_eq!(*node_id, nodes[0].node.get_our_node_id());
-               if let msgs::ErrorAction::SendErrorMessage { msg } = action {
-                       assert_eq!(msg.data, "Channel closed because of an exception: ".to_owned() + expected_err);
+               if let msgs::ErrorAction::DisconnectPeer { msg } = action {
+                       assert_eq!(msg.as_ref().unwrap().data, "Channel closed because of an exception: ".to_owned() + expected_err);
                } else { panic!(); }
        } else { panic!(); }
        assert_eq!(nodes[1].node.list_channels().len(), 0);
@@ -9188,25 +9418,85 @@ fn test_invalid_funding_tx() {
        // long the ChannelMonitor will try to read 32 bytes from the second-to-last element, panicing
        // as its not 32 bytes long.
        let mut spend_tx = Transaction {
-               version: 2i32, lock_time: PackedLockTime::ZERO,
+               version: 2i32, lock_time: LockTime::ZERO,
                input: tx.output.iter().enumerate().map(|(idx, _)| TxIn {
                        previous_output: BitcoinOutPoint {
                                txid: tx.txid(),
                                vout: idx as u32,
                        },
-                       script_sig: Script::new(),
+                       script_sig: ScriptBuf::new(),
                        sequence: Sequence::ENABLE_RBF_NO_LOCKTIME,
-                       witness: Witness::from_vec(channelmonitor::deliberately_bogus_accepted_htlc_witness())
+                       witness: Witness::from_slice(&channelmonitor::deliberately_bogus_accepted_htlc_witness())
                }).collect(),
                output: vec![TxOut {
                        value: 1000,
-                       script_pubkey: Script::new(),
+                       script_pubkey: ScriptBuf::new(),
                }]
        };
        check_spends!(spend_tx, tx);
        mine_transaction(&nodes[1], &spend_tx);
 }
 
+#[test]
+fn test_coinbase_funding_tx() {
+       // Miners are able to fund channels directly from coinbase transactions, however
+       // by consensus rules, outputs of a coinbase transaction are encumbered by a 100
+       // block maturity timelock. To ensure that a (non-0conf) channel like this is enforceable
+       // on-chain, the minimum depth is updated to 100 blocks for coinbase funding transactions.
+       //
+       // Note that 0conf channels with coinbase funding transactions are unaffected and are
+       // immediately operational after opening.
+       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, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 42, None, None).unwrap();
+       let open_channel = 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(), &open_channel);
+       let accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+
+       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel);
+
+       // Create the coinbase funding transaction.
+       let (temporary_channel_id, tx, _) = create_coinbase_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 100000, 42);
+
+       nodes[0].node.funding_transaction_generated(&temporary_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).unwrap();
+       check_added_monitors!(nodes[0], 0);
+       let funding_created = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
+
+       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created);
+       check_added_monitors!(nodes[1], 1);
+       expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
+
+       let funding_signed = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+
+       nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed);
+       check_added_monitors!(nodes[0], 1);
+
+       expect_channel_pending_event(&nodes[0], &nodes[1].node.get_our_node_id());
+       assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
+
+       // Starting at height 0, we "confirm" the coinbase at height 1.
+       confirm_transaction_at(&nodes[0], &tx, 1);
+       // We connect 98 more blocks to have 99 confirmations for the coinbase transaction.
+       connect_blocks(&nodes[0], COINBASE_MATURITY - 2);
+       // Check that we have no pending message events (we have not queued a `channel_ready` yet).
+       assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
+       // Now connect one more block which results in 100 confirmations of the coinbase transaction.
+       connect_blocks(&nodes[0], 1);
+       // There should now be a `channel_ready` which can be handled.
+       let _ = &nodes[1].node.handle_channel_ready(&nodes[0].node.get_our_node_id(), &get_event_msg!(&nodes[0], MessageSendEvent::SendChannelReady, nodes[1].node.get_our_node_id()));
+
+       confirm_transaction_at(&nodes[1], &tx, 1);
+       connect_blocks(&nodes[1], COINBASE_MATURITY - 2);
+       assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
+       connect_blocks(&nodes[1], 1);
+       expect_channel_ready_event(&nodes[1], &nodes[0].node.get_our_node_id());
+       create_chan_between_nodes_with_value_confirm_second(&nodes[0], &nodes[1]);
+}
+
 fn do_test_tx_confirmed_skipping_blocks_immediate_broadcast(test_height_before_timelock: bool) {
        // In the first version of the chain::Confirm interface, after a refactor was made to not
        // broadcast CSV-locked transactions until their CSV lock is up, we wouldn't reliably broadcast
@@ -9232,13 +9522,13 @@ fn do_test_tx_confirmed_skipping_blocks_immediate_broadcast(test_height_before_t
 
        create_announced_chan_between_nodes(&nodes, 0, 1);
        let (chan_announce, _, channel_id, _) = create_announced_chan_between_nodes(&nodes, 1, 2);
-       let (_, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1_000_000);
+       let (_, payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1_000_000);
        nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id());
        nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id());
 
        nodes[1].node.force_close_broadcasting_latest_txn(&channel_id, &nodes[2].node.get_our_node_id()).unwrap();
        check_closed_broadcast!(nodes[1], true);
-       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
+       check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[2].node.get_our_node_id()], 100000);
        check_added_monitors!(nodes[1], 1);
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
        assert_eq!(node_txn.len(), 1);
@@ -9258,8 +9548,12 @@ fn do_test_tx_confirmed_skipping_blocks_immediate_broadcast(test_height_before_t
                // We should broadcast an HTLC transaction spending our funding transaction first
                let spending_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
                assert_eq!(spending_txn.len(), 2);
-               assert_eq!(spending_txn[0].txid(), node_txn[0].txid());
-               check_spends!(spending_txn[1], node_txn[0]);
+               let htlc_tx = if spending_txn[0].txid() == node_txn[0].txid() {
+                       &spending_txn[1]
+               } else {
+                       &spending_txn[0]
+               };
+               check_spends!(htlc_tx, node_txn[0]);
                // We should also generate a SpendableOutputs event with the to_self output (as its
                // timelock is up).
                let descriptor_spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager);
@@ -9269,7 +9563,7 @@ fn do_test_tx_confirmed_skipping_blocks_immediate_broadcast(test_height_before_t
                // should immediately fail-backwards the HTLC to the previous hop, without waiting for an
                // additional block built on top of the current chain.
                nodes[1].chain_monitor.chain_monitor.transactions_confirmed(
-                       &nodes[1].get_block_header(conf_height + 1), &[(0, &spending_txn[1])], conf_height + 1);
+                       &nodes[1].get_block_header(conf_height + 1), &[(0, htlc_tx)], conf_height + 1);
                expect_pending_htlcs_forwardable_and_htlc_handling_failed!(nodes[1], vec![HTLCDestination::NextHopChannel { node_id: Some(nodes[2].node.get_our_node_id()), channel_id: channel_id }]);
                check_added_monitors!(nodes[1], 1);
 
@@ -9300,7 +9594,7 @@ fn do_test_dup_htlc_second_rejected(test_for_second_fail_panic: bool) {
        let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
 
        let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV)
-               .with_features(nodes[1].node.invoice_features());
+               .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
        let route = get_route!(nodes[0], payment_params, 10_000).unwrap();
 
        let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(&nodes[1]);
@@ -9409,7 +9703,7 @@ fn test_inconsistent_mpp_params() {
        let chan_2_3 =create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 100_000, 0);
 
        let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
-               .with_features(nodes[3].node.invoice_features());
+               .with_bolt11_features(nodes[3].node.bolt11_invoice_features()).unwrap();
        let mut route = get_route!(nodes[0], payment_params, 15_000_000).unwrap();
        assert_eq!(route.paths.len(), 2);
        route.paths.sort_by(|path_a, _| {
@@ -9500,74 +9794,7 @@ fn test_inconsistent_mpp_params() {
        pass_along_path(&nodes[0], &[&nodes[2], &nodes[3]], 15_000_000, our_payment_hash, Some(our_payment_secret), events.pop().unwrap(), true, None);
 
        do_claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], false, our_payment_preimage);
-       expect_payment_sent(&nodes[0], our_payment_preimage, Some(None), true);
-}
-
-#[test]
-fn test_keysend_payments_to_public_node() {
-       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, None]);
-       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
-
-       let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
-       let network_graph = nodes[0].network_graph.clone();
-       let payer_pubkey = nodes[0].node.get_our_node_id();
-       let payee_pubkey = nodes[1].node.get_our_node_id();
-       let route_params = RouteParameters {
-               payment_params: PaymentParameters::for_keysend(payee_pubkey, 40),
-               final_value_msat: 10000,
-       };
-       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 test_preimage = PaymentPreimage([42; 32]);
-       let payment_hash = nodes[0].node.send_spontaneous_payment(&route, Some(test_preimage),
-               RecipientOnionFields::spontaneous_empty(), PaymentId(test_preimage.0)).unwrap();
-       check_added_monitors!(nodes[0], 1);
-       let mut events = nodes[0].node.get_and_clear_pending_msg_events();
-       assert_eq!(events.len(), 1);
-       let event = events.pop().unwrap();
-       let path = vec![&nodes[1]];
-       pass_along_path(&nodes[0], &path, 10000, payment_hash, None, event, true, Some(test_preimage));
-       claim_payment(&nodes[0], &path, test_preimage);
-}
-
-#[test]
-fn test_keysend_payments_to_private_node() {
-       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, None]);
-       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
-
-       let payer_pubkey = nodes[0].node.get_our_node_id();
-       let payee_pubkey = nodes[1].node.get_our_node_id();
-
-       let _chan = create_chan_between_nodes(&nodes[0], &nodes[1]);
-       let route_params = RouteParameters {
-               payment_params: PaymentParameters::for_keysend(payee_pubkey, 40),
-               final_value_msat: 10000,
-       };
-       let network_graph = nodes[0].network_graph.clone();
-       let first_hops = nodes[0].node.list_usable_channels();
-       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, Some(&first_hops.iter().collect::<Vec<_>>()),
-               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),
-               RecipientOnionFields::spontaneous_empty(), PaymentId(test_preimage.0)).unwrap();
-       check_added_monitors!(nodes[0], 1);
-       let mut events = nodes[0].node.get_and_clear_pending_msg_events();
-       assert_eq!(events.len(), 1);
-       let event = events.pop().unwrap();
-       let path = vec![&nodes[1]];
-       pass_along_path(&nodes[0], &path, 10000, payment_hash, None, event, true, Some(test_preimage));
-       claim_payment(&nodes[0], &path, test_preimage);
+       expect_payment_sent(&nodes[0], our_payment_preimage, Some(None), true, true);
 }
 
 #[test]
@@ -9638,7 +9865,7 @@ enum ExposureEvent {
        AtUpdateFeeOutbound,
 }
 
-fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_event: ExposureEvent, on_holder_tx: bool) {
+fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_event: ExposureEvent, on_holder_tx: bool, multiplier_dust_limit: bool) {
        // Test that we properly reject dust HTLC violating our `max_dust_htlc_exposure_msat`
        // policy.
        //
@@ -9653,12 +9880,17 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
 
        let chanmon_cfgs = create_chanmon_cfgs(2);
        let mut config = test_default_channel_config();
-       config.channel_config.max_dust_htlc_exposure_msat = 5_000_000; // default setting value
+       config.channel_config.max_dust_htlc_exposure = if multiplier_dust_limit {
+               // Default test fee estimator rate is 253 sat/kw, so we set the multiplier to 5_000_000 / 253
+               // to get roughly the same initial value as the default setting when this test was
+               // originally written.
+               MaxDustHTLCExposure::FeeRateMultiplier(5_000_000 / 253)
+       } else { MaxDustHTLCExposure::FixedLimitMsat(5_000_000) }; // initial default setting value
        let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(config), None]);
        let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
+       nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None, None).unwrap();
        let mut open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
        open_channel.max_htlc_value_in_flight_msat = 50_000_000;
        open_channel.max_accepted_htlcs = 60;
@@ -9669,15 +9901,19 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
        let mut accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
        nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel);
 
-       let opt_anchors = false;
+       let channel_type_features = ChannelTypeFeatures::only_static_remote_key();
 
        let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42);
 
        if on_holder_tx {
                let mut node_0_per_peer_lock;
                let mut node_0_peer_state_lock;
-               let mut chan = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, temporary_channel_id);
-               chan.holder_dust_limit_satoshis = 546;
+               match get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, temporary_channel_id) {
+                       ChannelPhase::UnfundedOutboundV1(chan) => {
+                               chan.context.holder_dust_limit_satoshis = 546;
+                       },
+                       _ => panic!("Unexpected ChannelPhase variant"),
+               }
        }
 
        nodes[0].node.funding_transaction_generated(&temporary_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).unwrap();
@@ -9693,20 +9929,25 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
        let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &channel_ready);
        update_nodes_with_chan_announce(&nodes, 0, 1, &announcement, &as_update, &bs_update);
 
-       let dust_buffer_feerate = {
+       // Fetch a route in advance as we will be unable to once we're unable to send.
+       let (mut route, payment_hash, _, payment_secret) =
+               get_route_and_payment_hash!(nodes[0], nodes[1], 1000);
+
+       let (dust_buffer_feerate, max_dust_htlc_exposure_msat) = {
                let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
                let chan = chan_lock.channel_by_id.get(&channel_id).unwrap();
-               chan.get_dust_buffer_feerate(None) as u64
+               (chan.context().get_dust_buffer_feerate(None) as u64,
+               chan.context().get_max_dust_htlc_exposure_msat(&LowerBoundedFeeEstimator(nodes[0].fee_estimator)))
        };
-       let dust_outbound_htlc_on_holder_tx_msat: u64 = (dust_buffer_feerate * htlc_timeout_tx_weight(opt_anchors) / 1000 + open_channel.dust_limit_satoshis - 1) * 1000;
-       let dust_outbound_htlc_on_holder_tx: u64 = config.channel_config.max_dust_htlc_exposure_msat / dust_outbound_htlc_on_holder_tx_msat;
+       let dust_outbound_htlc_on_holder_tx_msat: u64 = (dust_buffer_feerate * htlc_timeout_tx_weight(&channel_type_features) / 1000 + open_channel.dust_limit_satoshis - 1) * 1000;
+       let dust_outbound_htlc_on_holder_tx: u64 = max_dust_htlc_exposure_msat / dust_outbound_htlc_on_holder_tx_msat;
 
-       let dust_inbound_htlc_on_holder_tx_msat: u64 = (dust_buffer_feerate * htlc_success_tx_weight(opt_anchors) / 1000 + open_channel.dust_limit_satoshis - 1) * 1000;
-       let dust_inbound_htlc_on_holder_tx: u64 = config.channel_config.max_dust_htlc_exposure_msat / dust_inbound_htlc_on_holder_tx_msat;
+       let dust_inbound_htlc_on_holder_tx_msat: u64 = (dust_buffer_feerate * htlc_success_tx_weight(&channel_type_features) / 1000 + open_channel.dust_limit_satoshis - 1) * 1000;
+       let dust_inbound_htlc_on_holder_tx: u64 = max_dust_htlc_exposure_msat / dust_inbound_htlc_on_holder_tx_msat;
 
-       let dust_htlc_on_counterparty_tx: u64 = 25;
-       let dust_htlc_on_counterparty_tx_msat: u64 = config.channel_config.max_dust_htlc_exposure_msat / dust_htlc_on_counterparty_tx;
+       let dust_htlc_on_counterparty_tx: u64 = 4;
+       let dust_htlc_on_counterparty_tx_msat: u64 = max_dust_htlc_exposure_msat / dust_htlc_on_counterparty_tx;
 
        if on_holder_tx {
                if dust_outbound_balance {
@@ -9730,7 +9971,7 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
                if dust_outbound_balance {
                        // Outbound dust threshold: 2132 sats (`dust_buffer_feerate` * HTLC_TIMEOUT_TX_WEIGHT / 1000 + counteparty's `dust_limit_satoshis`)
                        // Outbound dust balance: 5000 sats
-                       for _ in 0..dust_htlc_on_counterparty_tx {
+                       for _ in 0..dust_htlc_on_counterparty_tx - 1 {
                                let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], dust_htlc_on_counterparty_tx_msat);
                                nodes[0].node.send_payment_with_route(&route, payment_hash,
                                        RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)).unwrap();
@@ -9738,32 +9979,27 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
                } else {
                        // Inbound dust threshold: 2031 sats (`dust_buffer_feerate` * HTLC_TIMEOUT_TX_WEIGHT / 1000 + counteparty's `dust_limit_satoshis`)
                        // Inbound dust balance: 5000 sats
-                       for _ in 0..dust_htlc_on_counterparty_tx {
+                       for _ in 0..dust_htlc_on_counterparty_tx - 1 {
                                route_payment(&nodes[1], &[&nodes[0]], dust_htlc_on_counterparty_tx_msat);
                        }
                }
        }
 
-       let dust_overflow = dust_htlc_on_counterparty_tx_msat * (dust_htlc_on_counterparty_tx + 1);
        if exposure_breach_event == ExposureEvent::AtHTLCForward {
-               let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], if on_holder_tx { dust_outbound_htlc_on_holder_tx_msat } else { dust_htlc_on_counterparty_tx_msat });
-               let mut config = UserConfig::default();
+               route.paths[0].hops.last_mut().unwrap().fee_msat =
+                       if on_holder_tx { dust_outbound_htlc_on_holder_tx_msat } else { dust_htlc_on_counterparty_tx_msat + 1 };
                // With default dust exposure: 5000 sats
                if on_holder_tx {
-                       let dust_outbound_overflow = dust_outbound_htlc_on_holder_tx_msat * (dust_outbound_htlc_on_holder_tx + 1);
-                       let dust_inbound_overflow = dust_inbound_htlc_on_holder_tx_msat * dust_inbound_htlc_on_holder_tx + dust_outbound_htlc_on_holder_tx_msat;
                        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, payment_hash,
                                        RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)
-                               ), true, APIError::ChannelUnavailable { ref err },
-                               assert_eq!(err, &format!("Cannot send value that would put our exposure to dust HTLCs at {} over the limit {} on holder commitment tx", if dust_outbound_balance { dust_outbound_overflow } else { dust_inbound_overflow }, config.channel_config.max_dust_htlc_exposure_msat)));
+                               ), true, APIError::ChannelUnavailable { .. }, {});
                } else {
                        unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, payment_hash,
                                        RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)
-                               ), true, APIError::ChannelUnavailable { ref err },
-                               assert_eq!(err, &format!("Cannot send value that would put our exposure to dust HTLCs at {} over the limit {} on counterparty commitment tx", dust_overflow, config.channel_config.max_dust_htlc_exposure_msat)));
+                               ), true, APIError::ChannelUnavailable { .. }, {});
                }
        } else if exposure_breach_event == ExposureEvent::AtHTLCReception {
-               let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], if on_holder_tx { dust_inbound_htlc_on_holder_tx_msat } else { dust_htlc_on_counterparty_tx_msat });
+               let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[1], nodes[0], if on_holder_tx { dust_inbound_htlc_on_holder_tx_msat } else { dust_htlc_on_counterparty_tx_msat + 4 });
                nodes[1].node.send_payment_with_route(&route, payment_hash,
                        RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)).unwrap();
                check_added_monitors!(nodes[1], 1);
@@ -9776,15 +10012,24 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
                        // Outbound dust balance: 6399 sats
                        let dust_inbound_overflow = dust_inbound_htlc_on_holder_tx_msat * (dust_inbound_htlc_on_holder_tx + 1);
                        let dust_outbound_overflow = dust_outbound_htlc_on_holder_tx_msat * dust_outbound_htlc_on_holder_tx + dust_inbound_htlc_on_holder_tx_msat;
-                       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Cannot accept value that would put our exposure to dust HTLCs at {} over the limit {} on holder commitment tx", if dust_outbound_balance { dust_outbound_overflow } else { dust_inbound_overflow }, config.channel_config.max_dust_htlc_exposure_msat), 1);
+                       nodes[0].logger.assert_log("lightning::ln::channel", format!("Cannot accept value that would put our exposure to dust HTLCs at {} over the limit {} on holder commitment tx", if dust_outbound_balance { dust_outbound_overflow } else { dust_inbound_overflow }, max_dust_htlc_exposure_msat), 1);
                } else {
                        // Outbound dust balance: 5200 sats
-                       nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Cannot accept value that would put our exposure to dust HTLCs at {} over the limit {} on counterparty commitment tx", dust_overflow, config.channel_config.max_dust_htlc_exposure_msat), 1);
+                       nodes[0].logger.assert_log("lightning::ln::channel",
+                               format!("Cannot accept value that would put our exposure to dust HTLCs at {} over the limit {} on counterparty commitment tx",
+                                       dust_htlc_on_counterparty_tx_msat * (dust_htlc_on_counterparty_tx - 1) + dust_htlc_on_counterparty_tx_msat + 4,
+                                       max_dust_htlc_exposure_msat), 1);
                }
        } else if exposure_breach_event == ExposureEvent::AtUpdateFeeOutbound {
-               let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 2_500_000);
-               nodes[0].node.send_payment_with_route(&route, payment_hash,
-                       RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)).unwrap();
+               route.paths[0].hops.last_mut().unwrap().fee_msat = 2_500_000;
+               // For the multiplier dust exposure limit, since it scales with feerate,
+               // we need to add a lot of HTLCs that will become dust at the new feerate
+               // to cross the threshold.
+               for _ in 0..20 {
+                       let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[1], Some(1_000), None);
+                       nodes[0].node.send_payment_with_route(&route, payment_hash,
+                               RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)).unwrap();
+               }
                {
                        let mut feerate_lock = chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap();
                        *feerate_lock = *feerate_lock * 10;
@@ -9799,20 +10044,25 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e
        added_monitors.clear();
 }
 
+fn do_test_max_dust_htlc_exposure_by_threshold_type(multiplier_dust_limit: bool) {
+       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCForward, true, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCForward, true, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCReception, true, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCReception, false, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCForward, false, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCReception, false, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCReception, true, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCForward, false, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtUpdateFeeOutbound, true, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtUpdateFeeOutbound, false, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtUpdateFeeOutbound, false, multiplier_dust_limit);
+       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtUpdateFeeOutbound, true, multiplier_dust_limit);
+}
+
 #[test]
 fn test_max_dust_htlc_exposure() {
-       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCForward, true);
-       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCForward, true);
-       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCReception, true);
-       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCReception, false);
-       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCForward, false);
-       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCReception, false);
-       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtHTLCReception, true);
-       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtHTLCForward, false);
-       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtUpdateFeeOutbound, true);
-       do_test_max_dust_htlc_exposure(true, ExposureEvent::AtUpdateFeeOutbound, false);
-       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtUpdateFeeOutbound, false);
-       do_test_max_dust_htlc_exposure(false, ExposureEvent::AtUpdateFeeOutbound, true);
+       do_test_max_dust_htlc_exposure_by_threshold_type(false);
+       do_test_max_dust_htlc_exposure_by_threshold_type(true);
 }
 
 #[test]
@@ -9822,7 +10072,7 @@ fn test_non_final_funding_tx() {
        let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
        let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
 
-       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None).unwrap();
+       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
        let open_channel_message = 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(), &open_channel_message);
        let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
@@ -9832,12 +10082,12 @@ fn test_non_final_funding_tx() {
 
        let chan_id = *nodes[0].network_chan_count.borrow();
        let events = nodes[0].node.get_and_clear_pending_events();
-       let input = TxIn { previous_output: BitcoinOutPoint::null(), script_sig: bitcoin::Script::new(), sequence: Sequence(1), witness: Witness::from_vec(vec!(vec!(1))) };
+       let input = TxIn { previous_output: BitcoinOutPoint::null(), script_sig: bitcoin::ScriptBuf::new(), sequence: Sequence(1), witness: Witness::from_slice(&[&[1]]) };
        assert_eq!(events.len(), 1);
        let mut tx = match events[0] {
                Event::FundingGenerationReady { ref channel_value_satoshis, ref output_script, .. } => {
                        // Timelock the transaction _beyond_ the best client height + 1.
-                       Transaction { version: chan_id as i32, lock_time: PackedLockTime(best_height + 2), input: vec![input], output: vec![TxOut {
+                       Transaction { version: chan_id as i32, lock_time: LockTime::from_height(best_height + 2).unwrap(), input: vec![input], output: vec![TxOut {
                                value: *channel_value_satoshis, script_pubkey: output_script.clone(),
                        }]}
                },
@@ -9850,9 +10100,46 @@ fn test_non_final_funding_tx() {
                },
                _ => panic!()
        }
+       let events = nodes[0].node.get_and_clear_pending_events();
+       assert_eq!(events.len(), 1);
+       match events[0] {
+               Event::ChannelClosed { channel_id, .. } => {
+                       assert_eq!(channel_id, temp_channel_id);
+               },
+               _ => panic!("Unexpected event"),
+       }
+}
 
-       // However, transaction should be accepted if it's in a +1 headroom from best block.
-       tx.lock_time = PackedLockTime(tx.lock_time.0 - 1);
+#[test]
+fn test_non_final_funding_tx_within_headroom() {
+       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, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
+       let open_channel_message = 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(), &open_channel_message);
+       let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel_message);
+
+       let best_height = nodes[0].node.best_block.read().unwrap().height();
+
+       let chan_id = *nodes[0].network_chan_count.borrow();
+       let events = nodes[0].node.get_and_clear_pending_events();
+       let input = TxIn { previous_output: BitcoinOutPoint::null(), script_sig: bitcoin::ScriptBuf::new(), sequence: Sequence(1), witness: Witness::from_slice(&[[1]]) };
+       assert_eq!(events.len(), 1);
+       let mut tx = match events[0] {
+               Event::FundingGenerationReady { ref channel_value_satoshis, ref output_script, .. } => {
+                       // Timelock the transaction within a +1 headroom from the best block.
+                       Transaction { version: chan_id as i32, lock_time: LockTime::from_consensus(best_height + 1), input: vec![input], output: vec![TxOut {
+                               value: *channel_value_satoshis, script_pubkey: output_script.clone(),
+                       }]}
+               },
+               _ => panic!("Unexpected event"),
+       };
+
+       // Transaction should be accepted if it's in a +1 headroom from best block.
        assert!(nodes[0].node.funding_transaction_generated(&temp_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).is_ok());
        get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
 }
@@ -9927,7 +10214,8 @@ fn accept_busted_but_better_fee() {
                MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, .. }, .. } => {
                        nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_fee.as_ref().unwrap());
                        check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError {
-                               err: "Peer's feerate much too low. Actual: 1000. Our expected lower limit: 5000 (- 250)".to_owned() });
+                               err: "Peer's feerate much too low. Actual: 1000. Our expected lower limit: 5000".to_owned() },
+                               [nodes[0].node.get_our_node_id()], 100000);
                        check_closed_broadcast!(nodes[1], true);
                        check_added_monitors!(nodes[1], 1);
                },
@@ -9992,3 +10280,601 @@ 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);
+               }
+       }
+}
+
+#[test]
+fn test_remove_expired_outbound_unfunded_channels() {
+       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, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
+       let open_channel_message = 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(), &open_channel_message);
+       let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel_message);
+
+       let events = nodes[0].node.get_and_clear_pending_events();
+       assert_eq!(events.len(), 1);
+       match events[0] {
+               Event::FundingGenerationReady { .. } => (),
+               _ => panic!("Unexpected event"),
+       };
+
+       // Asserts the outbound channel has been removed from a nodes[0]'s peer state map.
+       let check_outbound_channel_existence = |should_exist: bool| {
+               let per_peer_state = nodes[0].node.per_peer_state.read().unwrap();
+               let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap();
+               assert_eq!(chan_lock.channel_by_id.contains_key(&temp_channel_id), should_exist);
+       };
+
+       // Channel should exist without any timer ticks.
+       check_outbound_channel_existence(true);
+
+       // Channel should exist with 1 timer tick less than required.
+       for _ in 0..UNFUNDED_CHANNEL_AGE_LIMIT_TICKS - 1 {
+               nodes[0].node.timer_tick_occurred();
+               check_outbound_channel_existence(true)
+       }
+
+       // Remove channel after reaching the required ticks.
+       nodes[0].node.timer_tick_occurred();
+       check_outbound_channel_existence(false);
+
+       let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
+       assert_eq!(msg_events.len(), 1);
+       match msg_events[0] {
+               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
+                       assert_eq!(msg.data, "Force-closing pending channel due to timeout awaiting establishment handshake");
+               },
+               _ => panic!("Unexpected event"),
+       }
+       check_closed_event(&nodes[0], 1, ClosureReason::HolderForceClosed, false, &[nodes[1].node.get_our_node_id()], 100000);
+}
+
+#[test]
+fn test_remove_expired_inbound_unfunded_channels() {
+       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, None]);
+       let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       let temp_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
+       let open_channel_message = 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(), &open_channel_message);
+       let accept_channel_message = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel_message);
+
+       let events = nodes[0].node.get_and_clear_pending_events();
+       assert_eq!(events.len(), 1);
+       match events[0] {
+               Event::FundingGenerationReady { .. } => (),
+               _ => panic!("Unexpected event"),
+       };
+
+       // Asserts the inbound channel has been removed from a nodes[1]'s peer state map.
+       let check_inbound_channel_existence = |should_exist: bool| {
+               let per_peer_state = nodes[1].node.per_peer_state.read().unwrap();
+               let chan_lock = per_peer_state.get(&nodes[0].node.get_our_node_id()).unwrap().lock().unwrap();
+               assert_eq!(chan_lock.channel_by_id.contains_key(&temp_channel_id), should_exist);
+       };
+
+       // Channel should exist without any timer ticks.
+       check_inbound_channel_existence(true);
+
+       // Channel should exist with 1 timer tick less than required.
+       for _ in 0..UNFUNDED_CHANNEL_AGE_LIMIT_TICKS - 1 {
+               nodes[1].node.timer_tick_occurred();
+               check_inbound_channel_existence(true)
+       }
+
+       // Remove channel after reaching the required ticks.
+       nodes[1].node.timer_tick_occurred();
+       check_inbound_channel_existence(false);
+
+       let msg_events = nodes[1].node.get_and_clear_pending_msg_events();
+       assert_eq!(msg_events.len(), 1);
+       match msg_events[0] {
+               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
+                       assert_eq!(msg.data, "Force-closing pending channel due to timeout awaiting establishment handshake");
+               },
+               _ => panic!("Unexpected event"),
+       }
+       check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed, false, &[nodes[0].node.get_our_node_id()], 100000);
+}
+
+fn do_test_multi_post_event_actions(do_reload: bool) {
+       // Tests handling multiple post-Event actions at once.
+       // There is specific code in ChannelManager to handle channels where multiple post-Event
+       // `ChannelMonitorUpdates` are pending at once. This test exercises that code.
+       //
+       // Specifically, we test calling `get_and_clear_pending_events` while there are two
+       // PaymentSents from different channels and one channel has two pending `ChannelMonitorUpdate`s
+       // - one from an RAA and one from an inbound commitment_signed.
+       let chanmon_cfgs = create_chanmon_cfgs(3);
+       let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+       let (persister, chain_monitor);
+       let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+       let nodes_0_deserialized;
+       let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       let chan_id = create_announced_chan_between_nodes(&nodes, 0, 1).2;
+       let chan_id_2 = create_announced_chan_between_nodes(&nodes, 0, 2).2;
+
+       send_payment(&nodes[0], &[&nodes[1]], 1_000_000);
+       send_payment(&nodes[0], &[&nodes[2]], 1_000_000);
+
+       let (our_payment_preimage, our_payment_hash, ..) = route_payment(&nodes[0], &[&nodes[1]], 1_000_000);
+       let (payment_preimage_2, payment_hash_2, ..) = route_payment(&nodes[0], &[&nodes[2]], 1_000_000);
+
+       nodes[1].node.claim_funds(our_payment_preimage);
+       check_added_monitors!(nodes[1], 1);
+       expect_payment_claimed!(nodes[1], our_payment_hash, 1_000_000);
+
+       nodes[2].node.claim_funds(payment_preimage_2);
+       check_added_monitors!(nodes[2], 1);
+       expect_payment_claimed!(nodes[2], payment_hash_2, 1_000_000);
+
+       for dest in &[1, 2] {
+               let htlc_fulfill_updates = get_htlc_update_msgs!(nodes[*dest], nodes[0].node.get_our_node_id());
+               nodes[0].node.handle_update_fulfill_htlc(&nodes[*dest].node.get_our_node_id(), &htlc_fulfill_updates.update_fulfill_htlcs[0]);
+               commitment_signed_dance!(nodes[0], nodes[*dest], htlc_fulfill_updates.commitment_signed, false);
+               check_added_monitors(&nodes[0], 0);
+       }
+
+       let (route, payment_hash_3, _, payment_secret_3) =
+               get_route_and_payment_hash!(nodes[1], nodes[0], 100_000);
+       let payment_id = PaymentId(payment_hash_3.0);
+       nodes[1].node.send_payment_with_route(&route, payment_hash_3,
+               RecipientOnionFields::secret_only(payment_secret_3), payment_id).unwrap();
+       check_added_monitors(&nodes[1], 1);
+
+       let send_event = SendEvent::from_node(&nodes[1]);
+       nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &send_event.msgs[0]);
+       nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &send_event.commitment_msg);
+       assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty());
+
+       if do_reload {
+               let nodes_0_serialized = nodes[0].node.encode();
+               let chan_0_monitor_serialized = get_monitor!(nodes[0], chan_id).encode();
+               let chan_1_monitor_serialized = get_monitor!(nodes[0], chan_id_2).encode();
+               reload_node!(nodes[0], test_default_channel_config(), &nodes_0_serialized, &[&chan_0_monitor_serialized, &chan_1_monitor_serialized], persister, chain_monitor, nodes_0_deserialized);
+
+               nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+               nodes[2].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+
+               reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[1]));
+               reconnect_nodes(ReconnectArgs::new(&nodes[0], &nodes[2]));
+       }
+
+       let events = nodes[0].node.get_and_clear_pending_events();
+       assert_eq!(events.len(), 4);
+       if let Event::PaymentSent { payment_preimage, .. } = events[0] {
+               assert!(payment_preimage == our_payment_preimage || payment_preimage == payment_preimage_2);
+       } else { panic!(); }
+       if let Event::PaymentSent { payment_preimage, .. } = events[1] {
+               assert!(payment_preimage == our_payment_preimage || payment_preimage == payment_preimage_2);
+       } else { panic!(); }
+       if let Event::PaymentPathSuccessful { .. } = events[2] {} else { panic!(); }
+       if let Event::PaymentPathSuccessful { .. } = events[3] {} else { panic!(); }
+
+       // After the events are processed, the ChannelMonitorUpdates will be released and, upon their
+       // completion, we'll respond to nodes[1] with an RAA + CS.
+       get_revoke_commit_msgs(&nodes[0], &nodes[1].node.get_our_node_id());
+       check_added_monitors(&nodes[0], 3);
+}
+
+#[test]
+fn test_multi_post_event_actions() {
+       do_test_multi_post_event_actions(true);
+       do_test_multi_post_event_actions(false);
+}
+
+#[test]
+fn test_batch_channel_open() {
+       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, None, None]);
+       let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       // Initiate channel opening and create the batch channel funding transaction.
+       let (tx, funding_created_msgs) = create_batch_channel_funding(&nodes[0], &[
+               (&nodes[1], 100_000, 0, 42, None),
+               (&nodes[2], 200_000, 0, 43, None),
+       ]);
+
+       // Go through the funding_created and funding_signed flow with node 1.
+       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msgs[0]);
+       check_added_monitors(&nodes[1], 1);
+       expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
+
+       let funding_signed_msg = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed_msg);
+       check_added_monitors(&nodes[0], 1);
+
+       // The transaction should not have been broadcast before all channels are ready.
+       assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 0);
+
+       // Go through the funding_created and funding_signed flow with node 2.
+       nodes[2].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msgs[1]);
+       check_added_monitors(&nodes[2], 1);
+       expect_channel_pending_event(&nodes[2], &nodes[0].node.get_our_node_id());
+
+       let funding_signed_msg = get_event_msg!(nodes[2], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       chanmon_cfgs[0].persister.set_update_ret(ChannelMonitorUpdateStatus::InProgress);
+       nodes[0].node.handle_funding_signed(&nodes[2].node.get_our_node_id(), &funding_signed_msg);
+       check_added_monitors(&nodes[0], 1);
+
+       // The transaction should not have been broadcast before persisting all monitors has been
+       // completed.
+       assert_eq!(nodes[0].tx_broadcaster.txn_broadcast().len(), 0);
+       assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
+
+       // Complete the persistence of the monitor.
+       nodes[0].chain_monitor.complete_sole_pending_chan_update(
+               &ChannelId::v1_from_funding_outpoint(OutPoint { txid: tx.txid(), index: 1 })
+       );
+       let events = nodes[0].node.get_and_clear_pending_events();
+
+       // The transaction should only have been broadcast now.
+       let broadcasted_txs = nodes[0].tx_broadcaster.txn_broadcast();
+       assert_eq!(broadcasted_txs.len(), 1);
+       assert_eq!(broadcasted_txs[0], tx);
+
+       assert_eq!(events.len(), 2);
+       assert!(events.iter().any(|e| matches!(
+               *e,
+               crate::events::Event::ChannelPending {
+                       ref counterparty_node_id,
+                       ..
+               } if counterparty_node_id == &nodes[1].node.get_our_node_id(),
+       )));
+       assert!(events.iter().any(|e| matches!(
+               *e,
+               crate::events::Event::ChannelPending {
+                       ref counterparty_node_id,
+                       ..
+               } if counterparty_node_id == &nodes[2].node.get_our_node_id(),
+       )));
+}
+
+#[test]
+fn test_disconnect_in_funding_batch() {
+       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, None, None]);
+       let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       // Initiate channel opening and create the batch channel funding transaction.
+       let (tx, funding_created_msgs) = create_batch_channel_funding(&nodes[0], &[
+               (&nodes[1], 100_000, 0, 42, None),
+               (&nodes[2], 200_000, 0, 43, None),
+       ]);
+
+       // Go through the funding_created and funding_signed flow with node 1.
+       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msgs[0]);
+       check_added_monitors(&nodes[1], 1);
+       expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
+
+       let funding_signed_msg = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed_msg);
+       check_added_monitors(&nodes[0], 1);
+
+       // The transaction should not have been broadcast before all channels are ready.
+       assert_eq!(nodes[0].tx_broadcaster.txn_broadcast().len(), 0);
+
+       // The remaining peer in the batch disconnects.
+       nodes[0].node.peer_disconnected(&nodes[2].node.get_our_node_id());
+
+       // The channels in the batch will close immediately.
+       let funding_txo_1 = OutPoint { txid: tx.txid(), index: 0 };
+       let funding_txo_2 = OutPoint { txid: tx.txid(), index: 1 };
+       let channel_id_1 = ChannelId::v1_from_funding_outpoint(funding_txo_1);
+       let channel_id_2 = ChannelId::v1_from_funding_outpoint(funding_txo_2);
+       check_closed_events(&nodes[0], &[
+               ExpectedCloseEvent {
+                       channel_id: Some(channel_id_1),
+                       discard_funding: true,
+                       channel_funding_txo: Some(funding_txo_1),
+                       user_channel_id: Some(42),
+                       ..Default::default()
+               },
+               ExpectedCloseEvent {
+                       channel_id: Some(channel_id_2),
+                       discard_funding: true,
+                       channel_funding_txo: Some(funding_txo_2),
+                       user_channel_id: Some(43),
+                       ..Default::default()
+               },
+       ]);
+
+       // The monitor should become closed.
+       check_added_monitors(&nodes[0], 1);
+       {
+               let mut monitor_updates = nodes[0].chain_monitor.monitor_updates.lock().unwrap();
+               let monitor_updates_1 = monitor_updates.get(&channel_id_1).unwrap();
+               assert_eq!(monitor_updates_1.len(), 1);
+               assert_eq!(monitor_updates_1[0].update_id, CLOSED_CHANNEL_UPDATE_ID);
+       }
+
+       // The funding transaction should not have been broadcast, and therefore, we don't need
+       // to broadcast a force-close transaction for the closed monitor.
+       assert_eq!(nodes[0].tx_broadcaster.txn_broadcast().len(), 0);
+
+       // Ensure the channels don't exist anymore.
+       assert!(nodes[0].node.list_channels().is_empty());
+}
+
+#[test]
+fn test_batch_funding_close_after_funding_signed() {
+       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, None, None]);
+       let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+       // Initiate channel opening and create the batch channel funding transaction.
+       let (tx, funding_created_msgs) = create_batch_channel_funding(&nodes[0], &[
+               (&nodes[1], 100_000, 0, 42, None),
+               (&nodes[2], 200_000, 0, 43, None),
+       ]);
+
+       // Go through the funding_created and funding_signed flow with node 1.
+       nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msgs[0]);
+       check_added_monitors(&nodes[1], 1);
+       expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
+
+       let funding_signed_msg = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       nodes[0].node.handle_funding_signed(&nodes[1].node.get_our_node_id(), &funding_signed_msg);
+       check_added_monitors(&nodes[0], 1);
+
+       // Go through the funding_created and funding_signed flow with node 2.
+       nodes[2].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msgs[1]);
+       check_added_monitors(&nodes[2], 1);
+       expect_channel_pending_event(&nodes[2], &nodes[0].node.get_our_node_id());
+
+       let funding_signed_msg = get_event_msg!(nodes[2], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
+       chanmon_cfgs[0].persister.set_update_ret(ChannelMonitorUpdateStatus::InProgress);
+       nodes[0].node.handle_funding_signed(&nodes[2].node.get_our_node_id(), &funding_signed_msg);
+       check_added_monitors(&nodes[0], 1);
+
+       // The transaction should not have been broadcast before all channels are ready.
+       assert_eq!(nodes[0].tx_broadcaster.txn_broadcast().len(), 0);
+
+       // Force-close the channel for which we've completed the initial monitor.
+       let funding_txo_1 = OutPoint { txid: tx.txid(), index: 0 };
+       let funding_txo_2 = OutPoint { txid: tx.txid(), index: 1 };
+       let channel_id_1 = ChannelId::v1_from_funding_outpoint(funding_txo_1);
+       let channel_id_2 = ChannelId::v1_from_funding_outpoint(funding_txo_2);
+       nodes[0].node.force_close_broadcasting_latest_txn(&channel_id_1, &nodes[1].node.get_our_node_id()).unwrap();
+       check_added_monitors(&nodes[0], 2);
+       {
+               let mut monitor_updates = nodes[0].chain_monitor.monitor_updates.lock().unwrap();
+               let monitor_updates_1 = monitor_updates.get(&channel_id_1).unwrap();
+               assert_eq!(monitor_updates_1.len(), 1);
+               assert_eq!(monitor_updates_1[0].update_id, CLOSED_CHANNEL_UPDATE_ID);
+               let monitor_updates_2 = monitor_updates.get(&channel_id_2).unwrap();
+               assert_eq!(monitor_updates_2.len(), 1);
+               assert_eq!(monitor_updates_2[0].update_id, CLOSED_CHANNEL_UPDATE_ID);
+       }
+       let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
+       match msg_events[0] {
+               MessageSendEvent::HandleError { .. } => (),
+               _ => panic!("Unexpected message."),
+       }
+
+       // We broadcast the commitment transaction as part of the force-close.
+       {
+               let broadcasted_txs = nodes[0].tx_broadcaster.txn_broadcast();
+               assert_eq!(broadcasted_txs.len(), 1);
+               assert!(broadcasted_txs[0].txid() != tx.txid());
+               assert_eq!(broadcasted_txs[0].input.len(), 1);
+               assert_eq!(broadcasted_txs[0].input[0].previous_output.txid, tx.txid());
+       }
+
+       // All channels in the batch should close immediately.
+       check_closed_events(&nodes[0], &[
+               ExpectedCloseEvent {
+                       channel_id: Some(channel_id_1),
+                       discard_funding: true,
+                       channel_funding_txo: Some(funding_txo_1),
+                       user_channel_id: Some(42),
+                       ..Default::default()
+               },
+               ExpectedCloseEvent {
+                       channel_id: Some(channel_id_2),
+                       discard_funding: true,
+                       channel_funding_txo: Some(funding_txo_2),
+                       user_channel_id: Some(43),
+                       ..Default::default()
+               },
+       ]);
+
+       // Ensure the channels don't exist anymore.
+       assert!(nodes[0].node.list_channels().is_empty());
+}
+
+fn do_test_funding_and_commitment_tx_confirm_same_block(confirm_remote_commitment: bool) {
+       // Tests that a node will forget the channel (when it only requires 1 confirmation) if the
+       // funding and commitment transaction confirm in the same block.
+       let chanmon_cfgs = create_chanmon_cfgs(2);
+       let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+       let mut min_depth_1_block_cfg = test_default_channel_config();
+       min_depth_1_block_cfg.channel_handshake_config.minimum_depth = 1;
+       let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(min_depth_1_block_cfg), Some(min_depth_1_block_cfg)]);
+       let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+       let funding_tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 1_000_000, 0);
+       let chan_id = ChannelId::v1_from_funding_outpoint(chain::transaction::OutPoint { txid: funding_tx.txid(), index: 0 });
+
+       assert_eq!(nodes[0].node.list_channels().len(), 1);
+       assert_eq!(nodes[1].node.list_channels().len(), 1);
+
+       let (closing_node, other_node) = if confirm_remote_commitment {
+               (&nodes[1], &nodes[0])
+       } else {
+               (&nodes[0], &nodes[1])
+       };
+
+       closing_node.node.force_close_broadcasting_latest_txn(&chan_id, &other_node.node.get_our_node_id()).unwrap();
+       let mut msg_events = closing_node.node.get_and_clear_pending_msg_events();
+       assert_eq!(msg_events.len(), 1);
+       match msg_events.pop().unwrap() {
+               MessageSendEvent::HandleError { action: msgs::ErrorAction::DisconnectPeer { .. }, .. } => {},
+               _ => panic!("Unexpected event"),
+       }
+       check_added_monitors(closing_node, 1);
+       check_closed_event(closing_node, 1, ClosureReason::HolderForceClosed, false, &[other_node.node.get_our_node_id()], 1_000_000);
+
+       let commitment_tx = {
+               let mut txn = closing_node.tx_broadcaster.txn_broadcast();
+               assert_eq!(txn.len(), 1);
+               let commitment_tx = txn.pop().unwrap();
+               check_spends!(commitment_tx, funding_tx);
+               commitment_tx
+       };
+
+       mine_transactions(&nodes[0], &[&funding_tx, &commitment_tx]);
+       mine_transactions(&nodes[1], &[&funding_tx, &commitment_tx]);
+
+       check_closed_broadcast(other_node, 1, true);
+       check_added_monitors(other_node, 1);
+       check_closed_event(other_node, 1, ClosureReason::CommitmentTxConfirmed, false, &[closing_node.node.get_our_node_id()], 1_000_000);
+
+       assert!(nodes[0].node.list_channels().is_empty());
+       assert!(nodes[1].node.list_channels().is_empty());
+}
+
+#[test]
+fn test_funding_and_commitment_tx_confirm_same_block() {
+       do_test_funding_and_commitment_tx_confirm_same_block(false);
+       do_test_funding_and_commitment_tx_confirm_same_block(true);
+}