Support aggregating htlc_maximum_msat for BlindedPayInfo

[rust-lightning] / lightning / src / blinded_path / mod.rs

diff --git a/lightning/src/blinded_path/mod.rs b/lightning/src/blinded_path/mod.rs
index 4a8f111be2cdad6bd68f95718ea5a5f08bce655d..82d50546ddd6c81f2de149333e1c30ee96754397 100644 (file)
--- a/lightning/src/blinded_path/mod.rs
+++ b/lightning/src/blinded_path/mod.rs
@@ -76,7 +76,8 @@ impl BlindedPath {
                })
        }
 
-       /// Create a blinded path for a payment, to be forwarded along `intermediate_nodes`.
+       /// Create a blinded path for a payment, to be forwarded along `intermediate_nodes`, where each
+       /// node is composed of `(node_id, tlvs, htlc_maximum_msat)`.
        ///
        /// Errors if:
        /// * a provided node id is invalid
@@ -86,13 +87,14 @@ impl BlindedPath {
        /// [`ForwardTlvs`]: crate::blinded_path::payment::ForwardTlvs
        //  TODO: make all payloads the same size with padding + add dummy hops
        pub fn new_for_payment<ES: EntropySource, T: secp256k1::Signing + secp256k1::Verification>(
-               intermediate_nodes: &[(PublicKey, payment::ForwardTlvs)], payee_node_id: PublicKey,
-               payee_tlvs: payment::ReceiveTlvs, entropy_source: &ES, secp_ctx: &Secp256k1<T>
+               intermediate_nodes: &[(PublicKey, payment::ForwardTlvs, u64)], payee_node_id: PublicKey,
+               payee_tlvs: payment::ReceiveTlvs, htlc_maximum_msat: u64, entropy_source: &ES,
+               secp_ctx: &Secp256k1<T>
        ) -> Result<(BlindedPayInfo, Self), ()> {
                let blinding_secret_bytes = entropy_source.get_secure_random_bytes();
                let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
 
-               let blinded_payinfo = payment::compute_payinfo(intermediate_nodes, &payee_tlvs)?;
+               let blinded_payinfo = payment::compute_payinfo(intermediate_nodes, &payee_tlvs, htlc_maximum_msat)?;
                Ok((blinded_payinfo, BlindedPath {
                        introduction_node_id: intermediate_nodes.first().map_or(payee_node_id, |n| n.0),
                        blinding_point: PublicKey::from_secret_key(secp_ctx, &blinding_secret),