})
}
+ /// Create a one-hop blinded path for a payment.
+ pub fn one_hop_for_payment<ES: EntropySource, T: secp256k1::Signing + secp256k1::Verification>(
+ payee_node_id: PublicKey, payee_tlvs: payment::ReceiveTlvs, entropy_source: &ES,
+ secp_ctx: &Secp256k1<T>
+ ) -> Result<(BlindedPayInfo, Self), ()> {
+ // This value is not considered in pathfinding for 1-hop blinded paths, because it's intended to
+ // be in relation to a specific channel.
+ let htlc_maximum_msat = u64::max_value();
+ Self::new_for_payment(
+ &[], payee_node_id, payee_tlvs, htlc_maximum_msat, entropy_source, secp_ctx
+ )
+ }
+
/// Create a blinded path for a payment, to be forwarded along `intermediate_nodes`.
///
/// Errors if:
///
/// [`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>
+ pub(crate) fn new_for_payment<ES: EntropySource, T: secp256k1::Signing + secp256k1::Verification>(
+ intermediate_nodes: &[payment::ForwardNode], 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),
+ introduction_node_id: intermediate_nodes.first().map_or(payee_node_id, |n| n.node_id),
blinding_point: PublicKey::from_secret_key(secp_ctx, &blinding_secret),
blinded_hops: payment::blinded_hops(
secp_ctx, intermediate_nodes, payee_node_id, payee_tlvs, &blinding_secret