From 4dba7a314ce175f9e5fd51856c914b11923738ed Mon Sep 17 00:00:00 2001
From: Valentine Wallace <vwallace@protonmail.com>
Date: Mon, 5 Aug 2024 16:30:31 -0700
Subject: [PATCH] Expose blinded paths' advance_path_by_one methods.

Useful for LDK users that are using the onion messages module, like LNDK.
---
 lightning/src/blinded_path/message.rs | 10 +++++-----
 lightning/src/blinded_path/payment.rs | 10 +++++-----
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/lightning/src/blinded_path/message.rs b/lightning/src/blinded_path/message.rs
index 846886dcc..0b575e842 100644
--- a/lightning/src/blinded_path/message.rs
+++ b/lightning/src/blinded_path/message.rs
@@ -258,11 +258,11 @@ pub(super) fn blinded_hops<T: secp256k1::Signing + secp256k1::Verification>(
 	utils::construct_blinded_hops(secp_ctx, pks, tlvs, session_priv)
 }
 
-// Advance the blinded onion message path by one hop, so make the second hop into the new
-// introduction node.
-//
-// Will only modify `path` when returning `Ok`.
-pub(crate) fn advance_path_by_one<NS: Deref, NL: Deref, T>(
+/// Advance the blinded onion message path by one hop, so make the second hop into the new
+/// introduction node.
+///
+/// Will only modify `path` when returning `Ok`.
+pub fn advance_path_by_one<NS: Deref, NL: Deref, T>(
 	path: &mut BlindedMessagePath, node_signer: &NS, node_id_lookup: &NL, secp_ctx: &Secp256k1<T>
 ) -> Result<(), ()>
 where
diff --git a/lightning/src/blinded_path/payment.rs b/lightning/src/blinded_path/payment.rs
index a7191656a..27033c058 100644
--- a/lightning/src/blinded_path/payment.rs
+++ b/lightning/src/blinded_path/payment.rs
@@ -341,11 +341,11 @@ pub(super) fn blinded_hops<T: secp256k1::Signing + secp256k1::Verification>(
 	utils::construct_blinded_hops(secp_ctx, pks, tlvs, session_priv)
 }
 
-// Advance the blinded onion payment path by one hop, so make the second hop into the new
-// introduction node.
-//
-// Will only modify `path` when returning `Ok`.
-pub(crate) fn advance_path_by_one<NS: Deref, NL: Deref, T>(
+/// Advance the blinded onion payment path by one hop, so make the second hop into the new
+/// introduction node.
+///
+/// Will only modify `path` when returning `Ok`.
+pub fn advance_path_by_one<NS: Deref, NL: Deref, T>(
 	path: &mut BlindedPaymentPath, node_signer: &NS, node_id_lookup: &NL, secp_ctx: &Secp256k1<T>
 ) -> Result<(), ()>
 where
-- 
2.39.5