Refactor features a bit more to describe what the constructors do
authorMatt Corallo <git@bluematt.me>
Mon, 13 Jan 2020 18:52:23 +0000 (13:52 -0500)
committerMatt Corallo <git@bluematt.me>
Mon, 13 Jan 2020 18:52:23 +0000 (13:52 -0500)
The Features::new() method is nonsense and doesn't describe what
features were being set - we introduce an empty() and supported()
constructors instead.

fuzz/src/chanmon_consistency.rs
lightning/src/ln/chanmon_update_fail_tests.rs
lightning/src/ln/channel.rs
lightning/src/ln/functional_tests.rs
lightning/src/ln/msgs.rs
lightning/src/ln/peer_handler.rs
lightning/src/ln/router.rs

index 7ae0568eedbf4d13f0b9b437810232fd16d24980..f86ee56fab8288c5671c192b766b27eeafe511e8 100644 (file)
@@ -252,7 +252,7 @@ pub fn do_test(data: &[u8]) {
                                } else { panic!("Wrong event type"); }
                        };
 
-                       $dest.handle_open_channel(&$source.get_our_node_id(), Features::<FeatureContextInit>::new(), &open_channel);
+                       $dest.handle_open_channel(&$source.get_our_node_id(), Features::<FeatureContextInit>::supported(), &open_channel);
                        let accept_channel = {
                                let events = $dest.get_and_clear_pending_msg_events();
                                assert_eq!(events.len(), 1);
@@ -261,7 +261,7 @@ pub fn do_test(data: &[u8]) {
                                } else { panic!("Wrong event type"); }
                        };
 
-                       $source.handle_accept_channel(&$dest.get_our_node_id(), Features::<FeatureContextInit>::new(), &accept_channel);
+                       $source.handle_accept_channel(&$dest.get_our_node_id(), Features::<FeatureContextInit>::supported(), &accept_channel);
                        {
                                let events = $source.get_and_clear_pending_events();
                                assert_eq!(events.len(), 1);
index 89d1786247c5117e3035c9094964abdba93010f9..7991e13065a49601e831d513e776052a03852fcf 100644 (file)
@@ -19,7 +19,7 @@ use ln::functional_test_utils::*;
 fn test_simple_monitor_permanent_update_fail() {
        // Test that we handle a simple permanent monitor update failure
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap();
        let (_, payment_hash_1) = get_payment_preimage_hash!(nodes[0]);
@@ -49,7 +49,7 @@ fn do_test_simple_monitor_temporary_update_fail(disconnect: bool) {
        // Test that we can recover from a simple temporary monitor update failure optionally with
        // a disconnect in between
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap();
        let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]);
@@ -148,7 +148,7 @@ fn do_test_monitor_temporary_update_fail(disconnect_count: usize) {
        //   through, swapping message ordering based on disconnect_count & 8 and optionally
        //   disconnect/reconnecting based on disconnect_count.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
 
@@ -474,7 +474,7 @@ fn test_monitor_temporary_update_fail_c() {
 fn test_monitor_update_fail_cs() {
        // Tests handling of a monitor update failure when processing an incoming commitment_signed
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap();
        let (payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -553,7 +553,7 @@ fn test_monitor_update_fail_no_rebroadcast() {
        // test_restore_channel_monitor() is required. Backported from
        // chanmon_fail_consistency fuzz tests.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap();
        let (payment_preimage_1, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -595,7 +595,7 @@ fn test_monitor_update_raa_while_paused() {
        // Tests handling of an RAA while monitor updating has already been marked failed.
        // Backported from chanmon_fail_consistency fuzz tests as this used to be broken.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        send_payment(&nodes[0], &[&nodes[1]], 5000000, 5_000_000);
 
@@ -662,8 +662,8 @@ fn test_monitor_update_raa_while_paused() {
 fn do_test_monitor_update_fail_raa(test_ignore_second_cs: bool) {
        // Tests handling of a monitor update failure when processing an incoming RAA
        let mut nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance a bit so that we can send backwards from 2 to 1.
        send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000, 5_000_000);
@@ -915,8 +915,8 @@ fn test_monitor_update_fail_reestablish() {
        // channel_reestablish generating a monitor update (which comes from freeing holding cell
        // HTLCs).
        let mut nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000);
 
@@ -993,7 +993,7 @@ fn raa_no_response_awaiting_raa_state() {
        // in question (assuming it intends to respond with a CS after monitor updating is restored).
        // Backported from chanmon_fail_consistency fuzz tests as this used to be broken.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap();
        let (payment_preimage_1, payment_hash_1) = get_payment_preimage_hash!(nodes[0]);
@@ -1106,7 +1106,7 @@ fn claim_while_disconnected_monitor_update_fail() {
        // code introduced a regression in this test (specifically, this caught a removal of the
        // channel_reestablish handling ensuring the order was sensical given the messages used).
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Forward a payment for B to claim
        let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
@@ -1221,7 +1221,7 @@ fn monitor_failed_no_reestablish_response() {
        // Backported from chanmon_fail_consistency fuzz tests as it caught a long-standing
        // debug_assert!() failure in channel_reestablish handling.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Route the payment and deliver the initial commitment_signed (with a monitor update failure
        // on receipt).
@@ -1287,7 +1287,7 @@ fn first_message_on_recv_ordering() {
        // payment applied).
        // Backported from chanmon_fail_consistency fuzz tests as it caught a bug here.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Route the first payment outbound, holding the last RAA for B until we are set up so that we
        // can deliver it and fail the monitor update.
@@ -1372,8 +1372,8 @@ fn test_monitor_update_fail_claim() {
        // payment from B to A fail due to the paused channel. Finally, we restore the channel monitor
        // updating and claim the payment on B.
        let mut nodes = create_network(3, &[None, None, None]);
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance a bit so that we can send backwards from 3 to 2.
        send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000, 5_000_000);
@@ -1445,8 +1445,8 @@ fn test_monitor_update_on_pending_forwards() {
        // The payment from A to C will be failed by C and pending a back-fail to A, while the payment
        // from C to A will be pending a forward to A.
        let mut nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance a bit so that we can send backwards from 3 to 1.
        send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 5000000, 5_000_000);
@@ -1510,7 +1510,7 @@ fn monitor_update_claim_fail_no_response() {
        // Backported from chanmon_fail_consistency fuzz tests as an unmerged version of the handling
        // code was broken.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Forward a payment for B to claim
        let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
@@ -1571,8 +1571,8 @@ fn do_during_funding_monitor_fail(fail_on_generate: bool, restore_between_fails:
        let mut nodes = create_network(2, &[None, None]);
 
        nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100000, 10001, 43).unwrap();
-       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), Features::<FeatureContextInit>::new(), &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(), Features::<FeatureContextInit>::new(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
+       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), Features::<FeatureContextInit>::supported(), &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(), Features::<FeatureContextInit>::supported(), &get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id()));
 
        let (temporary_channel_id, funding_tx, funding_output) = create_funding_transaction(&nodes[0], 100000, 43);
 
index a1ca587feea6623dd6984b37ca4fd1ecee4d185e..09b5a2040bfa49fff9b44bac885e4d4b1a904a5b 100644 (file)
@@ -3225,7 +3225,7 @@ impl<ChanSigner: ChannelKeys> Channel<ChanSigner> {
                let our_bitcoin_key = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key());
 
                let msg = msgs::UnsignedChannelAnnouncement {
-                       features: ChannelFeatures::new(),
+                       features: ChannelFeatures::supported(),
                        chain_hash: chain_hash,
                        short_channel_id: self.get_short_channel_id().unwrap(),
                        node_id_1: if were_node_one { our_node_id } else { self.get_their_node_id() },
index 8d6bddad25ecf0a78372e85c2a9170b30dd7c995..0ca492596d08a0af2af2f98b1a4c357ee97492da 100644 (file)
@@ -69,7 +69,7 @@ fn test_insane_channel_opens() {
        // Test helper that asserts we get the correct error string given a mutator
        // that supposedly makes the channel open message insane
        let insane_open_helper = |expected_error_str: &str, message_mutator: fn(msgs::OpenChannel) -> msgs::OpenChannel| {
-               nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), Features::<FeatureContextInit>::new(), &message_mutator(open_channel_message.clone()));
+               nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), Features::<FeatureContextInit>::supported(), &message_mutator(open_channel_message.clone()));
                let msg_events = nodes[1].node.get_and_clear_pending_msg_events();
                assert_eq!(msg_events.len(), 1);
                if let MessageSendEvent::HandleError { ref action, .. } = msg_events[0] {
@@ -108,7 +108,7 @@ fn test_insane_channel_opens() {
 #[test]
 fn test_async_inbound_update_fee() {
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        // balancing
@@ -218,7 +218,7 @@ fn test_update_fee_unordered_raa() {
        // Just the intro to the previous test followed by an out-of-order RAA (which caused a
        // crash in an earlier version of the update_fee patch)
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        // balancing
@@ -268,7 +268,7 @@ fn test_update_fee_unordered_raa() {
 #[test]
 fn test_multi_flight_update_fee() {
        let nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        // A                                        B
@@ -372,7 +372,7 @@ fn test_multi_flight_update_fee() {
 #[test]
 fn test_update_fee_vanilla() {
        let nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        let feerate = get_feerate!(nodes[0], channel_id);
@@ -411,7 +411,7 @@ fn test_update_fee_vanilla() {
 fn test_update_fee_that_funder_cannot_afford() {
        let nodes = create_network(2, &[None, None]);
        let channel_value = 1888;
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 700000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 700000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        let feerate = 260;
@@ -459,7 +459,7 @@ fn test_update_fee_that_funder_cannot_afford() {
 #[test]
 fn test_update_fee_with_fundee_update_add_htlc() {
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        // balancing
@@ -553,7 +553,7 @@ fn test_update_fee_with_fundee_update_add_htlc() {
 #[test]
 fn test_update_fee() {
        let nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let channel_id = chan.2;
 
        // A                                        B
@@ -654,7 +654,7 @@ fn test_update_fee() {
 fn pre_funding_lock_shutdown_test() {
        // Test sending a shutdown prior to funding_locked after funding generation
        let nodes = create_network(2, &[None, None]);
-       let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 8000000, 0, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 8000000, 0, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
        nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![tx.clone()]}, 1);
        nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![tx.clone()]}, 1);
@@ -680,8 +680,8 @@ fn pre_funding_lock_shutdown_test() {
 fn updates_shutdown_wait() {
        // Test sending a shutdown with outstanding updates pending
        let mut nodes = create_network(3, &[None, None, None]);
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route_1 = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap();
        let route_2 = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap();
 
@@ -752,8 +752,8 @@ fn updates_shutdown_wait() {
 fn htlc_fail_async_shutdown() {
        // Test HTLCs fail if shutdown starts even if messages are delivered out-of-order
        let mut nodes = create_network(3, &[None, None, None]);
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -833,8 +833,8 @@ fn do_test_shutdown_rebroadcast(recv_count: u8) {
        // Test that shutdown/closing_signed is re-sent on reconnect with a variable number of
        // messages delivered prior to disconnect
        let nodes = create_network(3, &[None, None, None]);
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 100000);
 
@@ -994,9 +994,9 @@ fn fake_network_test() {
        let nodes = create_network(4, &[None, None, None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network a bit by relaying one payment through all the channels...
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000);
@@ -1014,7 +1014,7 @@ fn fake_network_test() {
        fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], payment_hash_1);
 
        // Add a new channel that skips 3
-       let chan_4 = create_announced_chan_between_nodes(&nodes, 1, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_4 = create_announced_chan_between_nodes(&nodes, 1, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 1000000, 1_000_000);
        send_payment(&nodes[2], &vec!(&nodes[3])[..], 1000000, 1_000_000);
@@ -1076,7 +1076,7 @@ fn fake_network_test() {
        claim_payment(&nodes[1], &vec!(&nodes[2], &nodes[3], &nodes[1])[..], payment_preimage_1, 1_000_000);
 
        // Add a duplicate new channel from 2 to 4
-       let chan_5 = create_announced_chan_between_nodes(&nodes, 1, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_5 = create_announced_chan_between_nodes(&nodes, 1, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Send some payments across both channels
        let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 3000000).0;
@@ -1109,8 +1109,8 @@ fn holding_cell_htlc_counting() {
        // to ensure we don't end up with HTLCs sitting around in our holding cell for several
        // commitment dance rounds.
        let mut nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let mut payments = Vec::new();
        for _ in 0..::ln::channel::OUR_MAX_HTLCS {
@@ -1238,11 +1238,11 @@ fn duplicate_htlc_test() {
        let mut nodes = create_network(6, &[None, None, None, None, None, None]);
 
        // Create some initial channels to route via 3 to 4/5 from 0/1/2
-       create_announced_chan_between_nodes(&nodes, 0, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 3, 4, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 3, 5, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 3, 4, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 3, 5, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], 1000000);
 
@@ -1264,7 +1264,7 @@ fn test_duplicate_htlc_different_direction_onchain() {
        // in opposite directions.
        let nodes = create_network(2, &[None, None]);
 
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // balancing
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
@@ -1330,8 +1330,8 @@ fn test_duplicate_htlc_different_direction_onchain() {
 fn do_channel_reserve_test(test_recv: bool) {
 
        let mut nodes = create_network(3, &[None, None, None]);
-       let chan_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1900, 1001, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1900, 1001, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1900, 1001, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1900, 1001, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let mut stat01 = get_channel_value_stat!(nodes[0], chan_1.2);
        let mut stat11 = get_channel_value_stat!(nodes[1], chan_1.2);
@@ -1614,7 +1614,7 @@ fn channel_reserve_in_flight_removes() {
        //  * Now B happily sends another HTLC, potentially violating its reserve value from A's point
        //    of view (if A counts the AwaitingRemovedRemoteRevoke HTLC).
        let mut nodes = create_network(2, &[None, None]);
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let b_chan_values = get_channel_value_stat!(nodes[1], chan_1.2);
        // Route the first two HTLCs.
@@ -1743,10 +1743,10 @@ fn channel_monitor_network_test() {
        let nodes = create_network(5, &[None, None, None, None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_4 = create_announced_chan_between_nodes(&nodes, 3, 4, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_4 = create_announced_chan_between_nodes(&nodes, 3, 4, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network a bit by relaying one payment through all the channels...
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000);
@@ -1890,7 +1890,7 @@ fn test_justice_tx() {
        let cfgs = [Some(alice_config), Some(bob_config)];
        let nodes = create_network(2, &cfgs);
        // Create some new channels:
-       let chan_5 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_5 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // A pending HTLC which will be revoked:
        let payment_preimage_3 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
@@ -1934,7 +1934,7 @@ fn test_justice_tx() {
 
        // We test justice_tx build by A on B's revoked HTLC-Success tx
        // Create some new channels:
-       let chan_6 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_6 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        {
                let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
                node_txn.clear();
@@ -1980,7 +1980,7 @@ fn revoked_output_claim() {
        // Simple test to ensure a node will claim a revoked output when a stale remote commitment
        // transaction is broadcast by its counterparty
        let nodes = create_network(2, &[None, None]);
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        // node[0] is gonna to revoke an old state thus node[1] should be able to claim the revoked output
        let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2).unwrap().channel_monitor().get_latest_local_commitment_txn();
        assert_eq!(revoked_local_txn.len(), 1);
@@ -2011,7 +2011,7 @@ fn claim_htlc_outputs_shared_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some new channel:
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network to generate htlc in the two directions
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
@@ -2085,7 +2085,7 @@ fn claim_htlc_outputs_single_tx() {
        // Node revoked old state, htlcs have timed out, claim each of them in separated justice tx
        let nodes = create_network(2, &[None, None]);
 
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network to generate htlc in the two directions
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
@@ -2184,8 +2184,8 @@ fn test_htlc_on_chain_success() {
        let nodes = create_network(3, &[None, None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network a bit by relaying one payment through all the channels...
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
@@ -2349,8 +2349,8 @@ fn test_htlc_on_chain_timeout() {
        let nodes = create_network(3, &[None, None, None]);
 
        // Create some intial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network a bit by relaying one payment thorugh all the channels...
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
@@ -2457,8 +2457,8 @@ fn test_simple_commitment_revoked_fail_backward() {
        let nodes = create_network(3, &[None, None, None]);
 
        // Create some initial channels
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (payment_preimage, _payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
        // Get the will-be-revoked local txn from nodes[2]
@@ -2525,8 +2525,8 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use
        let mut nodes = create_network(3, &[None, None, None]);
 
        // Create some initial channels
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        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]
@@ -2734,7 +2734,7 @@ fn test_htlc_ignore_latest_remote_commitment() {
        // Test that HTLC transactions spending the latest remote commitment transaction are simply
        // ignored if we cannot claim them. This originally tickled an invalid unwrap().
        let nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        route_payment(&nodes[0], &[&nodes[1]], 10000000);
        nodes[0].node.force_close_channel(&nodes[0].node.list_channels()[0].channel_id);
@@ -2756,8 +2756,8 @@ fn test_htlc_ignore_latest_remote_commitment() {
 fn test_force_close_fail_back() {
        // Check which HTLCs are failed-backwards on channel force-closure
        let mut nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 1000000, 42).unwrap();
 
@@ -2830,7 +2830,7 @@ fn test_force_close_fail_back() {
 fn test_unconf_chan() {
        // After creating a chan between nodes, we disconnect all blocks previously seen to force a channel close on nodes[0] side
        let nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let channel_state = nodes[0].node.channel_state.lock().unwrap();
        assert_eq!(channel_state.by_id.len(), 1);
@@ -2859,8 +2859,8 @@ fn test_unconf_chan() {
 fn test_simple_peer_disconnect() {
        // Test that we can reconnect when there are no lost messages
        let nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
@@ -2913,10 +2913,10 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) {
        // Test that we can reconnect when in-flight HTLC updates get dropped
        let mut nodes = create_network(2, &[None, None]);
        if messages_delivered == 0 {
-               create_chan_between_nodes_with_value_a(&nodes[0], &nodes[1], 100000, 10001, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+               create_chan_between_nodes_with_value_a(&nodes[0], &nodes[1], 100000, 10001, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
                // nodes[1] doesn't receive the funding_locked message (it'll be re-sent on reconnect)
        } else {
-               create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+               create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        }
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), Some(&nodes[0].node.list_usable_channels()), &Vec::new(), 1000000, TEST_FINAL_CLTV).unwrap();
@@ -3118,7 +3118,7 @@ fn test_drop_messages_peer_disconnect_b() {
 fn test_funding_peer_disconnect() {
        // Test that we can lock in our funding tx while disconnected
        let nodes = create_network(2, &[None, None]);
-       let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
@@ -3200,7 +3200,7 @@ fn test_drop_messages_peer_disconnect_dual_htlc() {
        // Test that we can handle reconnecting when both sides of a channel have pending
        // commitment_updates when we disconnect.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (payment_preimage_1, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
 
@@ -3340,7 +3340,7 @@ fn test_invalid_channel_announcement() {
        let secp_ctx = Secp256k1::new();
        let nodes = create_network(2, &[None, None]);
 
-       let chan_announcement = create_chan_between_nodes(&nodes[0], &nodes[1], Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_announcement = create_chan_between_nodes(&nodes[0], &nodes[1], Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let a_channel_lock = nodes[0].node.channel_state.lock().unwrap();
        let b_channel_lock = nodes[1].node.channel_state.lock().unwrap();
@@ -3362,7 +3362,7 @@ fn test_invalid_channel_announcement() {
        macro_rules! dummy_unsigned_msg {
                () => {
                        msgs::UnsignedChannelAnnouncement {
-                               features: msgs::Features::<FeatureContextChannel>::new(),
+                               features: msgs::Features::<FeatureContextChannel>::supported(),
                                chain_hash: genesis_block(Network::Testnet).header.bitcoin_hash(),
                                short_channel_id: as_chan.get_short_channel_id().unwrap(),
                                node_id_1: if were_node_one { as_network_key } else { bs_network_key },
@@ -3412,7 +3412,7 @@ fn test_invalid_channel_announcement() {
 fn test_no_txn_manager_serialize_deserialize() {
        let mut nodes = create_network(2, &[None, None]);
 
-       let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false);
 
@@ -3474,7 +3474,7 @@ fn test_no_txn_manager_serialize_deserialize() {
 #[test]
 fn test_simple_manager_serialize_deserialize() {
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
        let (_, our_payment_hash) = route_payment(&nodes[0], &[&nodes[1]], 1000000);
@@ -3521,9 +3521,9 @@ fn test_simple_manager_serialize_deserialize() {
 fn test_manager_serialize_deserialize_inconsistent_monitor() {
        // Test deserializing a ChannelManager with an out-of-date ChannelMonitor
        let mut nodes = create_network(4, &[None, None, None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 2, 0, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let (_, _, channel_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 2, 0, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let (_, _, channel_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (our_payment_preimage, _) = route_payment(&nodes[2], &[&nodes[0], &nodes[1]], 1000000);
 
@@ -3718,7 +3718,7 @@ fn test_claim_sizeable_push_msat() {
        // Incidentally test SpendableOutput event generation due to detection of to_local output on commitment tx
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        nodes[1].node.force_close_channel(&chan.2);
        check_closed_broadcast!(nodes[1], false);
        let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
@@ -3739,7 +3739,7 @@ fn test_claim_on_remote_sizeable_push_msat() {
        // to_remote output is encumbered by a P2WPKH
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        nodes[0].node.force_close_channel(&chan.2);
        check_closed_broadcast!(nodes[0], false);
 
@@ -3764,7 +3764,7 @@ fn test_claim_on_remote_revoked_sizeable_push_msat() {
 
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 59000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 59000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan.2).unwrap().channel_monitor().get_latest_local_commitment_txn();
        assert_eq!(revoked_local_txn[0].input.len(), 1);
@@ -3789,7 +3789,7 @@ fn test_static_spendable_outputs_preimage_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
 
@@ -3833,7 +3833,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.iter_mut().next().unwrap().1.channel_monitor().get_latest_local_commitment_txn();
@@ -3863,7 +3863,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2).unwrap().channel_monitor().get_latest_local_commitment_txn();
@@ -3907,7 +3907,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let revoked_local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2).unwrap().channel_monitor().get_latest_local_commitment_txn();
@@ -3960,8 +3960,8 @@ fn test_onchain_to_onchain_claim() {
        let nodes = create_network(3, &[None, None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance the network a bit by relaying one payment through all the channels ...
        send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000);
@@ -4049,8 +4049,8 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
        // We route 2 payments with same hash between B and C, one will be timeout, the other successfully claim
        let mut nodes = create_network(3, &[None, None, None]);
 
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (our_payment_preimage, duplicate_payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000);
        *nodes[0].network_payment_count.borrow_mut() -= 1;
@@ -4166,7 +4166,7 @@ fn test_dynamic_spendable_outputs_local_htlc_success_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0;
        let local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2).unwrap().channel_monitor().get_latest_local_commitment_txn();
@@ -4214,11 +4214,11 @@ fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, anno
        // And test where C fails back to A/B when D announces its latest commitment transaction
        let nodes = create_network(6, &[None, None, None, None, None, None]);
 
-       create_announced_chan_between_nodes(&nodes, 0, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       let chan = create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 3, 4, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes(&nodes, 3, 5, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       let chan = create_announced_chan_between_nodes(&nodes, 2, 3, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 3, 4, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes(&nodes, 3, 5, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance and check output sanity...
        send_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 500000, 500_000);
@@ -4454,7 +4454,7 @@ fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() {
        let nodes = create_network(2, &[None, None]);
 
        // Create some initial channels
-       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0;
        let local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2).unwrap().channel_monitor().get_latest_local_commitment_txn();
@@ -4488,7 +4488,7 @@ fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() {
 fn test_static_output_closing_tx() {
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
        let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2;
@@ -4507,7 +4507,7 @@ fn test_static_output_closing_tx() {
 
 fn do_htlc_claim_local_commitment_only(use_dust: bool) {
        let nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (our_payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], if use_dust { 50000 } else { 3000000 });
 
@@ -4544,7 +4544,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) {
 
 fn do_htlc_claim_current_remote_commitment_only(use_dust: bool) {
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), if use_dust { 50000 } else { 3000000 }, TEST_FINAL_CLTV).unwrap();
        let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -4569,7 +4569,7 @@ fn do_htlc_claim_current_remote_commitment_only(use_dust: bool) {
 
 fn do_htlc_claim_previous_remote_commitment_only(use_dust: bool, check_revoke_no_close: bool) {
        let nodes = create_network(3, &[None, None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Fail the payment, but don't deliver A's final RAA, resulting in the HTLC only being present
        // in B's previous (unrevoked) commitment transaction, but none of A's commitment transactions.
@@ -4855,7 +4855,7 @@ fn test_onion_failure() {
        for node in nodes.iter() {
                *node.keys_manager.override_session_priv.lock().unwrap() = Some(SecretKey::from_slice(&[3; 32]).unwrap());
        }
-       let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new()), create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new())];
+       let channels = [create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported()), create_announced_chan_between_nodes(&nodes, 1, 2, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported())];
        let (_, payment_hash) = get_payment_preimage_hash!(nodes[0]);
        let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 40000, TEST_FINAL_CLTV).unwrap();
        // positve case
@@ -5076,7 +5076,7 @@ fn bolt2_open_channel_sending_node_checks_part1() { //This test needs to be on i
        let push_msat=10001;
        nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42).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(), Features::<FeatureContextInit>::new(), &node0_to_1_send_open_channel);
+       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), Features::<FeatureContextInit>::supported(), &node0_to_1_send_open_channel);
 
        //Create a second channel with a channel_id collision
        assert!(nodes[0].node.create_channel(nodes[0].node.get_our_node_id(), channel_value_satoshis, push_msat, 42).is_err());
@@ -5133,7 +5133,7 @@ fn test_update_add_htlc_bolt2_sender_value_below_minimum_msat() {
        //BOLT2 Requirement: MUST offer amount_msat greater than 0.
        //BOLT2 Requirement: MUST NOT offer amount_msat below the receiving node's htlc_minimum_msat (same validation check catches both of these)
        let mut nodes = create_network(2, &[None, None]);
-       let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let mut route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 100000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
 
@@ -5155,7 +5155,7 @@ fn test_update_add_htlc_bolt2_sender_cltv_expiry_too_high() {
        //BOLT 2 Requirement: MUST set cltv_expiry less than 500000000.
        //It is enforced when constructing a route.
        let mut nodes = create_network(2, &[None, None]);
-       let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 0, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 0, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 100000000, 500000001).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
 
@@ -5174,7 +5174,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_num_and_htlc_id_increment()
        //BOLT 2 Requirement: for the first HTLC it offers MUST set id to 0.
        //BOLT 2 Requirement: MUST increase the value of id by 1 for each successive offer.
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let max_accepted_htlcs = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().their_max_accepted_htlcs as u64;
 
        for i in 0..max_accepted_htlcs {
@@ -5218,7 +5218,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() {
        //BOLT 2 Requirement: if the sum of total offered HTLCs would exceed the remote's max_htlc_value_in_flight_msat: MUST NOT add an HTLC.
        let mut nodes = create_network(2, &[None, None]);
        let channel_value = 100000;
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 0, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 0, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let max_in_flight = get_channel_value_stat!(nodes[0], chan.2).their_max_htlc_value_in_flight_msat;
 
        send_payment(&nodes[0], &vec!(&nodes[1])[..], max_in_flight, max_in_flight);
@@ -5243,7 +5243,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() {
 fn test_update_add_htlc_bolt2_receiver_check_amount_received_more_than_min() {
        //BOLT2 Requirement: receiving an amount_msat equal to 0, OR less than its own htlc_minimum_msat -> SHOULD fail the channel.
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let htlc_minimum_msat: u64;
        {
                let chan_lock = nodes[0].node.channel_state.lock().unwrap();
@@ -5266,7 +5266,7 @@ fn test_update_add_htlc_bolt2_receiver_check_amount_received_more_than_min() {
 fn test_update_add_htlc_bolt2_receiver_sender_can_afford_amount_sent() {
        //BOLT2 Requirement: receiving an amount_msat that the sending node cannot afford at the current feerate_per_kw (while maintaining its channel reserve): SHOULD fail the channel
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let their_channel_reserve = get_channel_value_stat!(nodes[0], chan.2).channel_reserve_msat;
 
@@ -5289,7 +5289,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
        //BOLT 2 Requirement: if a sending node adds more than its max_accepted_htlcs HTLCs to its local commitment transaction: SHOULD fail the channel
        //BOLT 2 Requirement: MUST allow multiple HTLCs with the same payment_hash.
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 3999999, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
 
@@ -5330,7 +5330,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_htlc_limit() {
 fn test_update_add_htlc_bolt2_receiver_check_max_in_flight_msat() {
        //OR adds more than its max_htlc_value_in_flight_msat worth of offered HTLCs to its local commitment transaction: SHOULD fail the channel
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
        nodes[0].node.send_payment(route, our_payment_hash).unwrap();
@@ -5348,7 +5348,7 @@ fn test_update_add_htlc_bolt2_receiver_check_max_in_flight_msat() {
 fn test_update_add_htlc_bolt2_receiver_check_cltv_expiry() {
        //BOLT2 Requirement: if sending node sets cltv_expiry to greater or equal to 500000000: SHOULD fail the channel.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 3999999, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
        nodes[0].node.send_payment(route, our_payment_hash).unwrap();
@@ -5368,7 +5368,7 @@ fn test_update_add_htlc_bolt2_receiver_check_repeated_id_ignore() {
        // We test this by first testing that that repeated HTLCs pass commitment signature checks
        // after disconnect and that non-sequential htlc_ids result in a channel failure.
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
        nodes[0].node.send_payment(route, our_payment_hash).unwrap();
@@ -5409,7 +5409,7 @@ fn test_update_fulfill_htlc_bolt2_update_fulfill_htlc_before_commitment() {
        //BOLT 2 Requirement: until the corresponding HTLC is irrevocably committed in both sides' commitment transactions:     MUST NOT send an update_fulfill_htlc, update_fail_htlc, or update_fail_malformed_htlc.
 
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV).unwrap();
        let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -5436,7 +5436,7 @@ fn test_update_fulfill_htlc_bolt2_update_fail_htlc_before_commitment() {
        //BOLT 2 Requirement: until the corresponding HTLC is irrevocably committed in both sides' commitment transactions:     MUST NOT send an update_fulfill_htlc, update_fail_htlc, or update_fail_malformed_htlc.
 
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -5463,7 +5463,7 @@ fn test_update_fulfill_htlc_bolt2_update_fail_malformed_htlc_before_commitment()
        //BOLT 2 Requirement: until the corresponding HTLC is irrevocably committed in both sides' commitment transactions:     MUST NOT send an update_fulfill_htlc, update_fail_htlc, or update_fail_malformed_htlc.
 
        let mut nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -5491,7 +5491,7 @@ fn test_update_fulfill_htlc_bolt2_incorrect_htlc_id() {
        //BOLT 2 Requirement: A receiving node: if the id does not correspond to an HTLC in its current commitment transaction MUST fail the channel.
 
        let nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let our_payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 100000).0;
 
@@ -5528,7 +5528,7 @@ fn test_update_fulfill_htlc_bolt2_wrong_preimage() {
        //BOLT 2 Requirement: A receiving node: if the payment_preimage value in update_fulfill_htlc doesn't SHA256 hash to the corresponding HTLC payment_hash MUST fail the channel.
 
        let nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let our_payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 100000).0;
 
@@ -5566,7 +5566,7 @@ fn test_update_fulfill_htlc_bolt2_missing_badonion_bit_for_malformed_htlc_messag
        //BOLT 2 Requirement: A receiving node: if the BADONION bit in failure_code is not set for update_fail_malformed_htlc MUST fail the channel.
 
        let mut nodes = create_network(2, &[None, None]);
-       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &[], 1000000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
        nodes[0].node.send_payment(route, our_payment_hash).unwrap();
@@ -5608,8 +5608,8 @@ fn test_update_fulfill_htlc_bolt2_after_malformed_htlc_message_must_forward_upda
        //    * MUST return an error in the update_fail_htlc sent to the link which originally sent the HTLC, using the failure_code given and setting the data to sha256_of_onion.
 
        let mut nodes = create_network(3, &[None, None, None]);
-       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
-       create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1000000, 1000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
+       create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1000000, 1000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV).unwrap();
        let (_, our_payment_hash) = get_payment_preimage_hash!(nodes[0]);
@@ -5683,7 +5683,7 @@ fn do_test_failure_delay_dust_htlc_local_commitment(announce_latest: bool) {
        // HTLC could have been removed from lastest local commitment tx but still valid until we get remote RAA
 
        let nodes = create_network(2, &[None, None]);
-       let chan =create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan =create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
 
@@ -5773,7 +5773,7 @@ fn test_no_failure_dust_htlc_local_commitment() {
        // prone to error, we test here that a dummy transaction don't fail them.
 
        let nodes = create_network(2, &[None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Rebalance a bit
        send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000);
@@ -5827,7 +5827,7 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) {
        // Broadcast of HTLC-timeout tx on local commitment tx, trigger failure-update of non-dust HTLCs
 
        let nodes = create_network(3, &[None, None, None]);
-       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().our_dust_limit_satoshis;
 
@@ -5960,7 +5960,7 @@ fn test_upfront_shutdown_script() {
        let nodes = create_network(3, &cfgs);
 
        // We test that in case of peer committing upfront to a script, if it changes at closing, we refuse to sign
-       let flags = Features::<FeatureContextInit>::new();
+       let flags = Features::<FeatureContextInit>::supported();
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 1000000, 1000000, flags.clone(), flags.clone());
        nodes[0].node.close_channel(&OutPoint::new(chan.3.txid(), 0).to_channel_id()).unwrap();
        let mut node_0_shutdown = get_event_msg!(nodes[0], MessageSendEvent::SendShutdown, nodes[2].node.get_our_node_id());
@@ -5996,7 +5996,7 @@ fn test_upfront_shutdown_script() {
        }
 
        // We test that if case of peer non-signaling we don't enforce committed script at channel opening
-       let mut flags_no = Features::<FeatureContextInit>::new();
+       let mut flags_no = Features::<FeatureContextInit>::supported();
        flags_no.unset_upfront_shutdown_script();
        let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, flags_no, flags.clone());
        nodes[0].node.close_channel(&OutPoint::new(chan.3.txid(), 0).to_channel_id()).unwrap();
@@ -6067,7 +6067,7 @@ fn test_user_configurable_csv_delay() {
        nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42).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(&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), Features::<FeatureContextInit>::new(), &open_channel, 0, Arc::new(test_utils::TestLogger::new()), &low_our_to_self_config) {
+       if let Err(error) = Channel::new_from_req(&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), Features::<FeatureContextInit>::supported(), &open_channel, 0, Arc::new(test_utils::TestLogger::new()), &low_our_to_self_config) {
                match error {
                        ChannelError::Close(err) => { assert_eq!(err, "Configured with an unreasonable our_to_self_delay putting user funds at risks"); },
                        _ => panic!("Unexpected event"),
@@ -6076,10 +6076,10 @@ fn test_user_configurable_csv_delay() {
 
        // 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).unwrap();
-       nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), Features::<FeatureContextInit>::new(), &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(), Features::<FeatureContextInit>::supported(), &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;
-       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), Features::<FeatureContextInit>::new(), &accept_channel);
+       nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), Features::<FeatureContextInit>::supported(), &accept_channel);
        if let MessageSendEvent::HandleError { ref action, .. } = nodes[0].node.get_and_clear_pending_msg_events()[0] {
                match action {
                        &ErrorAction::SendErrorMessage { ref msg } => {
@@ -6093,7 +6093,7 @@ fn test_user_configurable_csv_delay() {
        nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 1000000, 1000000, 42).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(&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), Features::<FeatureContextInit>::new(), &open_channel, 0, Arc::new(test_utils::TestLogger::new()), &high_their_to_self_config) {
+       if let Err(error) = Channel::new_from_req(&test_utils::TestFeeEstimator { sat_per_kw: 253 }, &keys_manager, nodes[1].node.get_our_node_id(), Features::<FeatureContextInit>::supported(), &open_channel, 0, Arc::new(test_utils::TestLogger::new()), &high_their_to_self_config) {
                match error {
                        ChannelError::Close(err) => { assert_eq!(err, "They wanted our payments to be delayed by a needlessly long period"); },
                        _ => panic!("Unexpected event"),
@@ -6109,7 +6109,7 @@ fn test_data_loss_protect() {
        // * we are able to claim our own outputs thanks to remote my_current_per_commitment_point
        let mut nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        // Cache node A state before any channel update
        let previous_node_state = nodes[0].node.encode();
@@ -6226,7 +6226,7 @@ fn test_check_htlc_underpaying() {
        let nodes = create_network(2, &[None, None, None]);
 
        // Create some initial channels
-       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
 
        let (payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], 10_000);
 
@@ -6271,9 +6271,9 @@ fn test_announce_disable_channels() {
 
        let nodes = create_network(2, &[None, None]);
 
-       let short_id_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new()).0.contents.short_channel_id;
-       let short_id_2 = create_announced_chan_between_nodes(&nodes, 1, 0, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new()).0.contents.short_channel_id;
-       let short_id_3 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new()).0.contents.short_channel_id;
+       let short_id_1 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported()).0.contents.short_channel_id;
+       let short_id_2 = create_announced_chan_between_nodes(&nodes, 1, 0, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported()).0.contents.short_channel_id;
+       let short_id_3 = create_announced_chan_between_nodes(&nodes, 0, 1, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported()).0.contents.short_channel_id;
 
        // Disconnect peers
        nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false);
@@ -6330,7 +6330,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
 
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        let route = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 3000000, 30).unwrap();
        send_along_route(&nodes[1], route, &vec!(&nodes[0])[..], 3000000);
@@ -6430,7 +6430,7 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
 
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        // Lock HTLC in both directions
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3_000_000).0;
        route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0;
@@ -6574,7 +6574,7 @@ fn test_bump_penalty_txn_on_remote_commitment() {
 
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
        route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000).0;
 
@@ -6681,7 +6681,7 @@ fn test_set_outpoints_partial_claiming() {
        // - disconnect tx, see no tx anymore
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0;
        let payment_preimage_2 = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0;
 
@@ -6773,7 +6773,7 @@ fn test_bump_txn_sanitize_tracking_maps() {
 
        let nodes = create_network(2, &[None, None]);
 
-       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::new(), Features::<FeatureContextInit>::new());
+       let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, Features::<FeatureContextInit>::supported(), Features::<FeatureContextInit>::supported());
        // Lock HTLC in both directions
        let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000).0;
        route_payment(&nodes[1], &vec!(&nodes[0])[..], 9_000_000).0;
index 0610c02c1ce25c8c694e93f33c7a4b2db8f7fccd..f051b555a9aaf1a279f5b56f1137159daf886cd8 100644 (file)
@@ -140,16 +140,16 @@ pub type NodeFeatures = Features<FeatureContextNode>;
 pub type ChannelFeatures = Features<FeatureContextChannel>;
 
 impl<T: FeatureContextInitNode> Features<T> {
-       /// Create a blank Features flags (visibility extended for fuzz tests)
+       /// Create a Features with the features we support
        #[cfg(not(feature = "fuzztarget"))]
-       pub(crate) fn new() -> Features<T> {
+       pub(crate) fn supported() -> Features<T> {
                Features {
                        flags: vec![2 | 1 << 5],
                        mark: PhantomData,
                }
        }
        #[cfg(feature = "fuzztarget")]
-       pub fn new() -> Features<T> {
+       pub fn supported() -> Features<T> {
                Features {
                        flags: vec![2 | 1 << 5],
                        mark: PhantomData,
@@ -158,16 +158,16 @@ impl<T: FeatureContextInitNode> Features<T> {
 }
 
 impl Features<FeatureContextChannel> {
-       /// Create a blank Features flags (visibility extended for fuzz tests)
+       /// Create a Features with the features we support
        #[cfg(not(feature = "fuzztarget"))]
-       pub(crate) fn new() -> Features<FeatureContextChannel> {
+       pub(crate) fn supported() -> Features<FeatureContextChannel> {
                Features {
                        flags: Vec::new(),
                        mark: PhantomData,
                }
        }
        #[cfg(feature = "fuzztarget")]
-       pub fn new() -> Features<FeatureContextChannel> {
+       pub fn supported() -> Features<FeatureContextChannel> {
                Features {
                        flags: Vec::new(),
                        mark: PhantomData,
@@ -176,6 +176,14 @@ impl Features<FeatureContextChannel> {
 }
 
 impl<T: FeatureContext> Features<T> {
+       /// Create a blank Features with no fetures set
+       pub fn empty() -> Features<T> {
+               Features {
+                       flags: Vec::new(),
+                       mark: PhantomData,
+               }
+       }
+
        pub(crate) fn requires_unknown_bits(&self) -> bool {
                self.flags.iter().enumerate().any(|(idx, &byte)| {
                        ( idx != 0 && (byte & 0x55) != 0 ) || ( idx == 0 && (byte & 0x14) != 0 )
@@ -1617,7 +1625,7 @@ mod tests {
                let sig_2 = get_sig_on!(privkey_2, secp_ctx, String::from("01010101010101010101010101010101"));
                let sig_3 = get_sig_on!(privkey_3, secp_ctx, String::from("01010101010101010101010101010101"));
                let sig_4 = get_sig_on!(privkey_4, secp_ctx, String::from("01010101010101010101010101010101"));
-               let mut features = ChannelFeatures::new();
+               let mut features = ChannelFeatures::supported();
                if unknown_features_bits {
                        features.flags = vec![0xFF, 0xFF];
                }
@@ -1673,9 +1681,12 @@ mod tests {
                let secp_ctx = Secp256k1::new();
                let (privkey_1, pubkey_1) = get_keys_from!("0101010101010101010101010101010101010101010101010101010101010101", secp_ctx);
                let sig_1 = get_sig_on!(privkey_1, secp_ctx, String::from("01010101010101010101010101010101"));
-               let mut features = NodeFeatures::new();
+               let mut features = NodeFeatures::empty();
                if unknown_features_bits {
                        features.flags = vec![0xFF, 0xFF];
+               } else {
+                       // Set to some features we may support
+                       features.flags = vec![2 | 1 << 5];
                }
                let mut addresses = Vec::new();
                if ipv4 {
index ff00c350e732dbf17b64e8f6deae0ed3028dda45..902598a79abceed04b68d28f009c29a4d32a3a58 100644 (file)
@@ -567,7 +567,7 @@ impl<Descriptor: SocketDescriptor> PeerManager<Descriptor> {
 
                                                                        peer.their_node_id = Some(their_node_id);
                                                                        insert_node_id!();
-                                                                       let mut features = msgs::InitFeatures::new();
+                                                                       let mut features = msgs::InitFeatures::supported();
                                                                        if self.initial_syncs_sent.load(Ordering::Acquire) < INITIAL_SYNCS_TO_SEND {
                                                                                self.initial_syncs_sent.fetch_add(1, Ordering::AcqRel);
                                                                                features.set_initial_routing_sync();
@@ -638,7 +638,7 @@ impl<Descriptor: SocketDescriptor> PeerManager<Descriptor> {
                                                                                                peer.their_features = Some(msg.features);
 
                                                                                                if !peer.outbound {
-                                                                                                       let mut features = msgs::InitFeatures::new();
+                                                                                                       let mut features = msgs::InitFeatures::supported();
                                                                                                        if self.initial_syncs_sent.load(Ordering::Acquire) < INITIAL_SYNCS_TO_SEND {
                                                                                                                self.initial_syncs_sent.fetch_add(1, Ordering::AcqRel);
                                                                                                                features.set_initial_routing_sync();
index 5a21055cab6d5e4d1d3edb7f5192a19b08fc35c2..7737d5c5910d47c0e51ad54df6dc50c85aed3bde 100644 (file)
@@ -538,7 +538,7 @@ impl RoutingMessageHandler for Router {
                                                        channels: vec!(NetworkMap::get_key(msg.contents.short_channel_id, msg.contents.chain_hash)),
                                                        lowest_inbound_channel_fee_base_msat: u32::max_value(),
                                                        lowest_inbound_channel_fee_proportional_millionths: u32::max_value(),
-                                                       features: NodeFeatures::new(),
+                                                       features: NodeFeatures::empty(),
                                                        last_update: 0,
                                                        rgb: [0; 3],
                                                        alias: [0; 32],
@@ -740,7 +740,7 @@ impl Router {
                        channels: Vec::new(),
                        lowest_inbound_channel_fee_base_msat: u32::max_value(),
                        lowest_inbound_channel_fee_proportional_millionths: u32::max_value(),
-                       features: NodeFeatures::new(),
+                       features: NodeFeatures::empty(),
                        last_update: 0,
                        rgb: [0; 3],
                        alias: [0; 32],
@@ -1111,7 +1111,7 @@ mod tests {
                                channels: vec!(NetworkMap::get_key(1, zero_hash.clone()), NetworkMap::get_key(3, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 100,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1119,7 +1119,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(1, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: our_id.clone(),
                                        last_update: 0,
@@ -1145,7 +1145,7 @@ mod tests {
                                channels: vec!(NetworkMap::get_key(2, zero_hash.clone()), NetworkMap::get_key(4, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 0,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1153,7 +1153,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(2, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: our_id.clone(),
                                        last_update: 0,
@@ -1179,7 +1179,7 @@ mod tests {
                                channels: vec!(NetworkMap::get_key(12, zero_hash.clone()), NetworkMap::get_key(13, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 0,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1187,7 +1187,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(12, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: our_id.clone(),
                                        last_update: 0,
@@ -1219,7 +1219,7 @@ mod tests {
                                        NetworkMap::get_key(7, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 0,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1227,7 +1227,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(3, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node1.clone(),
                                        last_update: 0,
@@ -1250,7 +1250,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(4, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node2.clone(),
                                        last_update: 0,
@@ -1273,7 +1273,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(13, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node8.clone(),
                                        last_update: 0,
@@ -1299,7 +1299,7 @@ mod tests {
                                channels: vec!(NetworkMap::get_key(5, zero_hash.clone()), NetworkMap::get_key(11, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 0,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1307,7 +1307,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(5, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node3.clone(),
                                        last_update: 0,
@@ -1333,7 +1333,7 @@ mod tests {
                                channels: vec!(NetworkMap::get_key(6, zero_hash.clone()), NetworkMap::get_key(11, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 0,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1341,7 +1341,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(6, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node3.clone(),
                                        last_update: 0,
@@ -1364,7 +1364,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(11, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node5.clone(),
                                        last_update: 0,
@@ -1390,7 +1390,7 @@ mod tests {
                                channels: vec!(NetworkMap::get_key(7, zero_hash.clone())),
                                lowest_inbound_channel_fee_base_msat: 0,
                                lowest_inbound_channel_fee_proportional_millionths: 0,
-                               features: NodeFeatures::new(),
+                               features: NodeFeatures::empty(),
                                last_update: 1,
                                rgb: [0; 3],
                                alias: [0; 32],
@@ -1398,7 +1398,7 @@ mod tests {
                                announcement_message: None,
                        });
                        network.channels.insert(NetworkMap::get_key(7, zero_hash.clone()), ChannelInfo {
-                               features: ChannelFeatures::new(),
+                               features: ChannelFeatures::empty(),
                                one_to_two: DirectionalChannelInfo {
                                        src_node_id: node3.clone(),
                                        last_update: 0,