From 0b1dae47a3272dd293cbcfe89a064079e1aa1c5f Mon Sep 17 00:00:00 2001
From: t-bast <bastuc@hotmail.fr>
Date: Tue, 23 Nov 2021 11:58:03 +0100
Subject: [PATCH] Add channel type feature bit

We already support channel types, but we make it explicit with a feature
bit as required by https://github.com/lightning/bolts/pull/906
---
 eclair-core/src/main/resources/reference.conf             | 1 +
 eclair-core/src/main/scala/fr/acinq/eclair/Features.scala | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/eclair-core/src/main/resources/reference.conf b/eclair-core/src/main/resources/reference.conf
index fef81d4392..d899adc339 100644
--- a/eclair-core/src/main/resources/reference.conf
+++ b/eclair-core/src/main/resources/reference.conf
@@ -57,6 +57,7 @@ eclair {
     option_anchors_zero_fee_htlc_tx = disabled
     option_shutdown_anysegwit = optional
     option_onion_messages = disabled
+    option_channel_type = optional
     trampoline_payment = disabled
     keysend = disabled
   }
diff --git a/eclair-core/src/main/scala/fr/acinq/eclair/Features.scala b/eclair-core/src/main/scala/fr/acinq/eclair/Features.scala
index 4c392d5642..03b2316277 100644
--- a/eclair-core/src/main/scala/fr/acinq/eclair/Features.scala
+++ b/eclair-core/src/main/scala/fr/acinq/eclair/Features.scala
@@ -208,6 +208,11 @@ object Features {
     val mandatory = 38
   }
 
+  case object ChannelType extends Feature {
+    val rfcName = "option_channel_type"
+    val mandatory = 44
+  }
+
   // TODO: @t-bast: update feature bits once spec-ed (currently reserved here: https://github.com/lightningnetwork/lightning-rfc/issues/605)
   // We're not advertising these bits yet in our announcements, clients have to assume support.
   // This is why we haven't added them yet to `areSupported`.
@@ -231,12 +236,13 @@ object Features {
     PaymentSecret,
     BasicMultiPartPayment,
     Wumbo,
-    TrampolinePayment,
     StaticRemoteKey,
     AnchorOutputs,
     AnchorOutputsZeroFeeHtlcTx,
     ShutdownAnySegwit,
     OnionMessages,
+    ChannelType,
+    TrampolinePayment,
     KeySend
   )