From 5cb68a59c5d6d1da7cb55a339b192c9ce90db0e3 Mon Sep 17 00:00:00 2001
From: George Tsagkarelis <george.tsagkarelis@gmail.com>
Date: Wed, 15 May 2024 17:25:53 +0200
Subject: [PATCH] lnwallet: expose commitment blob from channel

---
 lnwallet/channel.go | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/lnwallet/channel.go b/lnwallet/channel.go
index 7af99f527..49d8df566 100644
--- a/lnwallet/channel.go
+++ b/lnwallet/channel.go
@@ -9119,3 +9119,19 @@ func (lc *LightningChannel) MultiSigKeys() (keychain.KeyDescriptor,
 	return lc.channelState.LocalChanCfg.MultiSigKey,
 		lc.channelState.RemoteChanCfg.MultiSigKey
 }
+
+// LocalCommitmentBlob returns the custom blob of the local commitment.
+func (lc *LightningChannel) LocalCommitmentBlob() fn.Option[tlv.Blob] {
+	lc.RLock()
+	defer lc.RUnlock()
+
+	chanState := lc.channelState
+	localBalance := chanState.LocalCommitment.CustomBlob
+
+	return fn.MapOption(func(b tlv.Blob) tlv.Blob {
+		newBlob := make([]byte, len(b))
+		copy(newBlob, b)
+
+		return newBlob
+	})(localBalance)
+}