]> git.bitcoin.ninja Git - rust-lightning/commitdiff
Stop relying on `*Features::known` in channel{,manager}.rs
authorMatt Corallo <git@bluematt.me>
Thu, 8 Sep 2022 21:24:34 +0000 (21:24 +0000)
committerMatt Corallo <git@bluematt.me>
Wed, 14 Sep 2022 20:09:35 +0000 (20:09 +0000)
As we move towards specify supported/required feature bits in the
module(s) where they are supported, the global `known` feature set
constructors no longer make sense.

Here we stop relying on the `known` method in the channel modules.

lightning/src/ln/channel.rs
lightning/src/ln/channelmanager.rs

index ffc218e96210b7b8ff72b72f3b4d36f637023636..55568f3d6c57cdeb4121cf58b2947a57405bef92 100644 (file)
@@ -6645,10 +6645,10 @@ mod tests {
        use bitcoin::network::constants::Network;
        use hex;
        use ln::PaymentHash;
-       use ln::channelmanager::{HTLCSource, PaymentId};
+       use ln::channelmanager::{self, HTLCSource, PaymentId};
        use ln::channel::{Channel, InboundHTLCOutput, OutboundHTLCOutput, InboundHTLCState, OutboundHTLCState, HTLCCandidate, HTLCInitiator};
        use ln::channel::{MAX_FUNDING_SATOSHIS_NO_WUMBO, TOTAL_BITCOIN_SUPPLY_SATOSHIS, MIN_THEIR_CHAN_RESERVE_SATOSHIS};
-       use ln::features::{InitFeatures, ChannelTypeFeatures};
+       use ln::features::ChannelTypeFeatures;
        use ln::msgs::{ChannelUpdate, DataLossProtect, DecodeError, OptionalField, UnsignedChannelUpdate, MAX_VALUE_MSAT};
        use ln::script::ShutdownScript;
        use ln::chan_utils;
@@ -6737,7 +6737,7 @@ mod tests {
 
        #[test]
        fn upfront_shutdown_script_incompatibility() {
-               let features = InitFeatures::known().clear_shutdown_anysegwit();
+               let features = channelmanager::provided_init_features().clear_shutdown_anysegwit();
                let non_v0_segwit_shutdown_script =
                        ShutdownScript::new_witness_program(WitnessVersion::V16, &[0, 40]).unwrap();
 
@@ -6774,7 +6774,7 @@ mod tests {
 
                let node_a_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let config = UserConfig::default();
-               let node_a_chan = Channel::<EnforcingSigner>::new_outbound(&bounded_fee_estimator, &&keys_provider, node_a_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
+               let node_a_chan = Channel::<EnforcingSigner>::new_outbound(&bounded_fee_estimator, &&keys_provider, node_a_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config, 0, 42).unwrap();
 
                // Now change the fee so we can check that the fee in the open_channel message is the
                // same as the old fee.
@@ -6800,18 +6800,18 @@ mod tests {
                // Create Node A's channel pointing to Node B's pubkey
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let config = UserConfig::default();
-               let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
+               let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, node_b_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config, 0, 42).unwrap();
 
                // Create Node B's channel by receiving Node A's open_channel message
                // Make sure A's dust limit is as we expect.
                let open_channel_msg = node_a_chan.get_open_channel(genesis_block(network).header.block_hash());
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[7; 32]).unwrap());
-               let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger, 42).unwrap();
+               let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, node_b_node_id, &channelmanager::provided_init_features(), &open_channel_msg, 7, &config, 0, &&logger, 42).unwrap();
 
                // Node B --> Node A: accept channel, explicitly setting B's dust limit.
                let mut accept_channel_msg = node_b_chan.accept_inbound_channel(0);
                accept_channel_msg.dust_limit_satoshis = 546;
-               node_a_chan.accept_channel(&accept_channel_msg, &config.channel_handshake_limits, &InitFeatures::known()).unwrap();
+               node_a_chan.accept_channel(&accept_channel_msg, &config.channel_handshake_limits, &channelmanager::provided_init_features()).unwrap();
                node_a_chan.holder_dust_limit_satoshis = 1560;
 
                // Put some inbound and outbound HTLCs in A's channel.
@@ -6870,7 +6870,7 @@ mod tests {
 
                let node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let config = UserConfig::default();
-               let mut chan = Channel::<EnforcingSigner>::new_outbound(&fee_est, &&keys_provider, node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
+               let mut chan = Channel::<EnforcingSigner>::new_outbound(&fee_est, &&keys_provider, node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config, 0, 42).unwrap();
 
                let commitment_tx_fee_0_htlcs = Channel::<EnforcingSigner>::commit_tx_fee_msat(chan.feerate_per_kw, 0, chan.opt_anchors());
                let commitment_tx_fee_1_htlc = Channel::<EnforcingSigner>::commit_tx_fee_msat(chan.feerate_per_kw, 1, chan.opt_anchors());
@@ -6919,16 +6919,16 @@ mod tests {
                // Create Node A's channel pointing to Node B's pubkey
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let config = UserConfig::default();
-               let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
+               let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, node_b_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config, 0, 42).unwrap();
 
                // Create Node B's channel by receiving Node A's open_channel message
                let open_channel_msg = node_a_chan.get_open_channel(chain_hash);
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[7; 32]).unwrap());
-               let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger, 42).unwrap();
+               let mut node_b_chan = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, node_b_node_id, &channelmanager::provided_init_features(), &open_channel_msg, 7, &config, 0, &&logger, 42).unwrap();
 
                // Node B --> Node A: accept channel
                let accept_channel_msg = node_b_chan.accept_inbound_channel(0);
-               node_a_chan.accept_channel(&accept_channel_msg, &config.channel_handshake_limits, &InitFeatures::known()).unwrap();
+               node_a_chan.accept_channel(&accept_channel_msg, &config.channel_handshake_limits, &channelmanager::provided_init_features()).unwrap();
 
                // Node A --> Node B: funding created
                let output_script = node_a_chan.get_funding_redeemscript();
@@ -6992,12 +6992,12 @@ mod tests {
                // Test that `new_outbound` creates a channel with the correct value for
                // `holder_max_htlc_value_in_flight_msat`, when configured with a valid percentage value,
                // which is set to the lower bound + 1 (2%) of the `channel_value`.
-               let chan_1 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config_2_percent, 0, 42).unwrap();
+               let chan_1 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config_2_percent, 0, 42).unwrap();
                let chan_1_value_msat = chan_1.channel_value_satoshis * 1000;
                assert_eq!(chan_1.holder_max_htlc_value_in_flight_msat, (chan_1_value_msat as f64 * 0.02) as u64);
 
                // Test with the upper bound - 1 of valid values (99%).
-               let chan_2 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config_99_percent, 0, 42).unwrap();
+               let chan_2 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config_99_percent, 0, 42).unwrap();
                let chan_2_value_msat = chan_2.channel_value_satoshis * 1000;
                assert_eq!(chan_2.holder_max_htlc_value_in_flight_msat, (chan_2_value_msat as f64 * 0.99) as u64);
 
@@ -7006,38 +7006,38 @@ mod tests {
                // Test that `new_from_req` creates a channel with the correct value for
                // `holder_max_htlc_value_in_flight_msat`, when configured with a valid percentage value,
                // which is set to the lower bound - 1 (2%) of the `channel_value`.
-               let chan_3 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &InitFeatures::known(), &chan_1_open_channel_msg, 7, &config_2_percent, 0, &&logger, 42).unwrap();
+               let chan_3 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &channelmanager::provided_init_features(), &chan_1_open_channel_msg, 7, &config_2_percent, 0, &&logger, 42).unwrap();
                let chan_3_value_msat = chan_3.channel_value_satoshis * 1000;
                assert_eq!(chan_3.holder_max_htlc_value_in_flight_msat, (chan_3_value_msat as f64 * 0.02) as u64);
 
                // Test with the upper bound - 1 of valid values (99%).
-               let chan_4 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &InitFeatures::known(), &chan_1_open_channel_msg, 7, &config_99_percent, 0, &&logger, 42).unwrap();
+               let chan_4 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &channelmanager::provided_init_features(), &chan_1_open_channel_msg, 7, &config_99_percent, 0, &&logger, 42).unwrap();
                let chan_4_value_msat = chan_4.channel_value_satoshis * 1000;
                assert_eq!(chan_4.holder_max_htlc_value_in_flight_msat, (chan_4_value_msat as f64 * 0.99) as u64);
 
                // Test that `new_outbound` uses the lower bound of the configurable percentage values (1%)
                // if `max_inbound_htlc_value_in_flight_percent_of_channel` is set to a value less than 1.
-               let chan_5 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config_0_percent, 0, 42).unwrap();
+               let chan_5 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config_0_percent, 0, 42).unwrap();
                let chan_5_value_msat = chan_5.channel_value_satoshis * 1000;
                assert_eq!(chan_5.holder_max_htlc_value_in_flight_msat, (chan_5_value_msat as f64 * 0.01) as u64);
 
                // Test that `new_outbound` uses the upper bound of the configurable percentage values
                // (100%) if `max_inbound_htlc_value_in_flight_percent_of_channel` is set to a larger value
                // than 100.
-               let chan_6 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config_101_percent, 0, 42).unwrap();
+               let chan_6 = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, outbound_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config_101_percent, 0, 42).unwrap();
                let chan_6_value_msat = chan_6.channel_value_satoshis * 1000;
                assert_eq!(chan_6.holder_max_htlc_value_in_flight_msat, chan_6_value_msat);
 
                // Test that `new_from_req` uses the lower bound of the configurable percentage values (1%)
                // if `max_inbound_htlc_value_in_flight_percent_of_channel` is set to a value less than 1.
-               let chan_7 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &InitFeatures::known(), &chan_1_open_channel_msg, 7, &config_0_percent, 0, &&logger, 42).unwrap();
+               let chan_7 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &channelmanager::provided_init_features(), &chan_1_open_channel_msg, 7, &config_0_percent, 0, &&logger, 42).unwrap();
                let chan_7_value_msat = chan_7.channel_value_satoshis * 1000;
                assert_eq!(chan_7.holder_max_htlc_value_in_flight_msat, (chan_7_value_msat as f64 * 0.01) as u64);
 
                // Test that `new_from_req` uses the upper bound of the configurable percentage values
                // (100%) if `max_inbound_htlc_value_in_flight_percent_of_channel` is set to a larger value
                // than 100.
-               let chan_8 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &InitFeatures::known(), &chan_1_open_channel_msg, 7, &config_101_percent, 0, &&logger, 42).unwrap();
+               let chan_8 = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider, inbound_node_id, &channelmanager::provided_init_features(), &chan_1_open_channel_msg, 7, &config_101_percent, 0, &&logger, 42).unwrap();
                let chan_8_value_msat = chan_8.channel_value_satoshis * 1000;
                assert_eq!(chan_8.holder_max_htlc_value_in_flight_msat, chan_8_value_msat);
        }
@@ -7077,7 +7077,7 @@ mod tests {
 
                let mut outbound_node_config = UserConfig::default();
                outbound_node_config.channel_handshake_config.their_channel_reserve_proportional_millionths = (outbound_selected_channel_reserve_perc * 1_000_000.0) as u32;
-               let chan = Channel::<EnforcingSigner>::new_outbound(&&fee_est, &&keys_provider, outbound_node_id, &InitFeatures::known(), channel_value_satoshis, 100_000, 42, &outbound_node_config, 0, 42).unwrap();
+               let chan = Channel::<EnforcingSigner>::new_outbound(&&fee_est, &&keys_provider, outbound_node_id, &channelmanager::provided_init_features(), channel_value_satoshis, 100_000, 42, &outbound_node_config, 0, 42).unwrap();
 
                let expected_outbound_selected_chan_reserve = cmp::max(MIN_THEIR_CHAN_RESERVE_SATOSHIS, (chan.channel_value_satoshis as f64 * outbound_selected_channel_reserve_perc) as u64);
                assert_eq!(chan.holder_selected_channel_reserve_satoshis, expected_outbound_selected_chan_reserve);
@@ -7087,7 +7087,7 @@ mod tests {
                inbound_node_config.channel_handshake_config.their_channel_reserve_proportional_millionths = (inbound_selected_channel_reserve_perc * 1_000_000.0) as u32;
 
                if outbound_selected_channel_reserve_perc + inbound_selected_channel_reserve_perc < 1.0 {
-                       let chan_inbound_node = Channel::<EnforcingSigner>::new_from_req(&&fee_est, &&keys_provider, inbound_node_id, &InitFeatures::known(), &chan_open_channel_msg, 7, &inbound_node_config, 0, &&logger, 42).unwrap();
+                       let chan_inbound_node = Channel::<EnforcingSigner>::new_from_req(&&fee_est, &&keys_provider, inbound_node_id, &channelmanager::provided_init_features(), &chan_open_channel_msg, 7, &inbound_node_config, 0, &&logger, 42).unwrap();
 
                        let expected_inbound_selected_chan_reserve = cmp::max(MIN_THEIR_CHAN_RESERVE_SATOSHIS, (chan.channel_value_satoshis as f64 * inbound_selected_channel_reserve_perc) as u64);
 
@@ -7095,7 +7095,7 @@ mod tests {
                        assert_eq!(chan_inbound_node.counterparty_selected_channel_reserve_satoshis.unwrap(), expected_outbound_selected_chan_reserve);
                } else {
                        // Channel Negotiations failed
-                       let result = Channel::<EnforcingSigner>::new_from_req(&&fee_est, &&keys_provider, inbound_node_id, &InitFeatures::known(), &chan_open_channel_msg, 7, &inbound_node_config, 0, &&logger, 42);
+                       let result = Channel::<EnforcingSigner>::new_from_req(&&fee_est, &&keys_provider, inbound_node_id, &channelmanager::provided_init_features(), &chan_open_channel_msg, 7, &inbound_node_config, 0, &&logger, 42);
                        assert!(result.is_err());
                }
        }
@@ -7112,7 +7112,7 @@ mod tests {
                // Create a channel.
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let config = UserConfig::default();
-               let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
+               let mut node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider, node_b_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config, 0, 42).unwrap();
                assert!(node_a_chan.counterparty_forwarding_info.is_none());
                assert_eq!(node_a_chan.holder_htlc_minimum_msat, 1); // the default
                assert!(node_a_chan.counterparty_forwarding_info().is_none());
@@ -7191,7 +7191,7 @@ mod tests {
                let counterparty_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let mut config = UserConfig::default();
                config.channel_handshake_config.announced_channel = false;
-               let mut chan = Channel::<InMemorySigner>::new_outbound(&LowerBoundedFeeEstimator::new(&feeest), &&keys_provider, counterparty_node_id, &InitFeatures::known(), 10_000_000, 100000, 42, &config, 0, 42).unwrap(); // Nothing uses their network key in this test
+               let mut chan = Channel::<InMemorySigner>::new_outbound(&LowerBoundedFeeEstimator::new(&feeest), &&keys_provider, counterparty_node_id, &channelmanager::provided_init_features(), 10_000_000, 100000, 42, &config, 0, 42).unwrap(); // Nothing uses their network key in this test
                chan.holder_dust_limit_satoshis = 546;
                chan.counterparty_selected_channel_reserve_satoshis = Some(0); // Filled in in accept_channel
 
@@ -7906,7 +7906,7 @@ mod tests {
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[42; 32]).unwrap());
                let config = UserConfig::default();
                let node_a_chan = Channel::<EnforcingSigner>::new_outbound(&feeest, &&keys_provider,
-                       node_b_node_id, &InitFeatures::known(), 10000000, 100000, 42, &config, 0, 42).unwrap();
+                       node_b_node_id, &channelmanager::provided_init_features(), 10000000, 100000, 42, &config, 0, 42).unwrap();
 
                let mut channel_type_features = ChannelTypeFeatures::only_static_remote_key();
                channel_type_features.set_zero_conf_required();
@@ -7915,7 +7915,7 @@ mod tests {
                open_channel_msg.channel_type = Some(channel_type_features);
                let node_b_node_id = PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[7; 32]).unwrap());
                let res = Channel::<EnforcingSigner>::new_from_req(&feeest, &&keys_provider,
-                       node_b_node_id, &InitFeatures::known(), &open_channel_msg, 7, &config, 0, &&logger, 42);
+                       node_b_node_id, &channelmanager::provided_init_features(), &open_channel_msg, 7, &config, 0, &&logger, 42);
                assert!(res.is_ok());
        }
 }
index 74d8abaf64ddd020ef453033341a885fece8eb78..4b9d67b889be28c9c9c0ab0ad45d10d44f11bc88 100644 (file)
@@ -7217,9 +7217,7 @@ mod tests {
        use core::time::Duration;
        use core::sync::atomic::Ordering;
        use ln::{PaymentPreimage, PaymentHash, PaymentSecret};
-       use ln::channelmanager::{PaymentId, PaymentSendFailure};
-       use ln::channelmanager::inbound_payment;
-       use ln::features::InitFeatures;
+       use ln::channelmanager::{self, inbound_payment, PaymentId, PaymentSendFailure};
        use ln::functional_test_utils::*;
        use ln::msgs;
        use ln::msgs::ChannelMessageHandler;
@@ -7244,7 +7242,7 @@ mod tests {
                assert!(nodes[1].node.await_persistable_update_timeout(Duration::from_millis(1)));
                assert!(nodes[2].node.await_persistable_update_timeout(Duration::from_millis(1)));
 
-               let mut chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
+               let mut chan = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
                // We check that the channel info nodes have doesn't change too early, even though we try
                // to connect messages with new values
@@ -7315,7 +7313,7 @@ mod tests {
                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, InitFeatures::known(), InitFeatures::known());
+               create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
 
                // First, send a partial MPP payment.
                let (route, our_payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(&nodes[0], nodes[1], 100_000);
@@ -7433,7 +7431,7 @@ mod tests {
                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, InitFeatures::known(), InitFeatures::known());
+               create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
                let scorer = test_utils::TestScorer::with_penalty(0);
                let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
 
@@ -7531,10 +7529,10 @@ mod tests {
 
                let payer_pubkey = nodes[0].node.get_our_node_id();
                let payee_pubkey = nodes[1].node.get_our_node_id();
-               nodes[0].node.peer_connected(&payee_pubkey, &msgs::Init { features: InitFeatures::known(), remote_network_address: None }).unwrap();
-               nodes[1].node.peer_connected(&payer_pubkey, &msgs::Init { features: InitFeatures::known(), remote_network_address: None }).unwrap();
+               nodes[0].node.peer_connected(&payee_pubkey, &msgs::Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
+               nodes[1].node.peer_connected(&payer_pubkey, &msgs::Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
 
-               let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
+               let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], channelmanager::provided_init_features(), channelmanager::provided_init_features());
                let route_params = RouteParameters {
                        payment_params: PaymentParameters::for_keysend(payee_pubkey),
                        final_value_msat: 10000,
@@ -7575,10 +7573,10 @@ mod tests {
 
                let payer_pubkey = nodes[0].node.get_our_node_id();
                let payee_pubkey = nodes[1].node.get_our_node_id();
-               nodes[0].node.peer_connected(&payee_pubkey, &msgs::Init { features: InitFeatures::known(), remote_network_address: None }).unwrap();
-               nodes[1].node.peer_connected(&payer_pubkey, &msgs::Init { features: InitFeatures::known(), remote_network_address: None }).unwrap();
+               nodes[0].node.peer_connected(&payee_pubkey, &msgs::Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
+               nodes[1].node.peer_connected(&payer_pubkey, &msgs::Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
 
-               let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
+               let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], channelmanager::provided_init_features(), channelmanager::provided_init_features());
                let route_params = RouteParameters {
                        payment_params: PaymentParameters::for_keysend(payee_pubkey),
                        final_value_msat: 10000,
@@ -7617,10 +7615,10 @@ mod tests {
                let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
                let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
 
-               let chan_1_id = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
-               let chan_2_id = create_announced_chan_between_nodes(&nodes, 0, 2, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
-               let chan_3_id = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
-               let chan_4_id = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id;
+               let chan_1_id = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()).0.contents.short_channel_id;
+               let chan_2_id = create_announced_chan_between_nodes(&nodes, 0, 2, channelmanager::provided_init_features(), channelmanager::provided_init_features()).0.contents.short_channel_id;
+               let chan_3_id = create_announced_chan_between_nodes(&nodes, 1, 3, channelmanager::provided_init_features(), channelmanager::provided_init_features()).0.contents.short_channel_id;
+               let chan_4_id = create_announced_chan_between_nodes(&nodes, 2, 3, channelmanager::provided_init_features(), channelmanager::provided_init_features()).0.contents.short_channel_id;
 
                // Marshall an MPP route.
                let (mut route, payment_hash, _, _) = get_route_and_payment_hash!(&nodes[0], nodes[3], 100000);
@@ -7681,9 +7679,9 @@ mod tests {
 
                nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, 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(), InitFeatures::known(), &open_channel);
+               nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), channelmanager::provided_init_features(), &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(), InitFeatures::known(), &accept_channel);
+               nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), channelmanager::provided_init_features(), &accept_channel);
 
                let (temporary_channel_id, tx, _funding_output) = create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42);
                let channel_id = &tx.txid().into_inner();
@@ -7728,9 +7726,9 @@ mod tests {
                update_nodes_with_chan_announce(&nodes, 0, 1, &announcement, &nodes_0_update, &nodes_1_update);
 
                nodes[0].node.close_channel(channel_id, &nodes[1].node.get_our_node_id()).unwrap();
-               nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &InitFeatures::known(), &get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()));
+               nodes[1].node.handle_shutdown(&nodes[0].node.get_our_node_id(), &channelmanager::provided_init_features(), &get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id()));
                let nodes_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[0].node.get_our_node_id());
-               nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &InitFeatures::known(), &nodes_1_shutdown);
+               nodes[0].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &channelmanager::provided_init_features(), &nodes_1_shutdown);
 
                let closing_signed_node_0 = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
                nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &closing_signed_node_0);
@@ -7788,7 +7786,7 @@ pub mod bench {
        use chain::Listen;
        use chain::chainmonitor::{ChainMonitor, Persist};
        use chain::keysinterface::{KeysManager, KeysInterface, InMemorySigner};
-       use ln::channelmanager::{BestBlock, ChainParameters, ChannelManager, PaymentHash, PaymentPreimage};
+       use ln::channelmanager::{self, BestBlock, ChainParameters, ChannelManager, PaymentHash, PaymentPreimage};
        use ln::features::{InitFeatures, InvoiceFeatures};
        use ln::functional_test_utils::*;
        use ln::msgs::{ChannelMessageHandler, Init};
@@ -7854,11 +7852,11 @@ pub mod bench {
                });
                let node_b_holder = NodeHolder { node: &node_b };
 
-               node_a.peer_connected(&node_b.get_our_node_id(), &Init { features: InitFeatures::known(), remote_network_address: None }).unwrap();
-               node_b.peer_connected(&node_a.get_our_node_id(), &Init { features: InitFeatures::known(), remote_network_address: None }).unwrap();
+               node_a.peer_connected(&node_b.get_our_node_id(), &Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
+               node_b.peer_connected(&node_a.get_our_node_id(), &Init { features: channelmanager::provided_init_features(), remote_network_address: None }).unwrap();
                node_a.create_channel(node_b.get_our_node_id(), 8_000_000, 100_000_000, 42, None).unwrap();
-               node_b.handle_open_channel(&node_a.get_our_node_id(), InitFeatures::known(), &get_event_msg!(node_a_holder, MessageSendEvent::SendOpenChannel, node_b.get_our_node_id()));
-               node_a.handle_accept_channel(&node_b.get_our_node_id(), InitFeatures::known(), &get_event_msg!(node_b_holder, MessageSendEvent::SendAcceptChannel, node_a.get_our_node_id()));
+               node_b.handle_open_channel(&node_a.get_our_node_id(), channelmanager::provided_init_features(), &get_event_msg!(node_a_holder, MessageSendEvent::SendOpenChannel, node_b.get_our_node_id()));
+               node_a.handle_accept_channel(&node_b.get_our_node_id(), channelmanager::provided_init_features(), &get_event_msg!(node_b_holder, MessageSendEvent::SendAcceptChannel, node_a.get_our_node_id()));
 
                let tx;
                if let Event::FundingGenerationReady { temporary_channel_id, output_script, .. } = get_event!(node_a_holder, Event::FundingGenerationReady) {
@@ -7902,7 +7900,7 @@ pub mod bench {
                        ($node_a: expr, $node_b: expr) => {
                                let usable_channels = $node_a.list_usable_channels();
                                let payment_params = PaymentParameters::from_node_id($node_b.get_our_node_id())
-                                       .with_features(InvoiceFeatures::known());
+                                       .with_features(channelmanager::provided_invoice_features());
                                let scorer = test_utils::TestScorer::with_penalty(0);
                                let seed = [3u8; 32];
                                let keys_manager = KeysManager::new(&seed, 42, 42);