- },
- msgs::OnionHopDataFormat::FinalNode { payment_data, keysend_preimage, payment_metadata } => {
- if let Some(payment_preimage) = keysend_preimage {
- // We need to check that the sender knows the keysend preimage before processing this
- // payment further. Otherwise, an intermediary routing hop forwarding non-keysend-HTLC X
- // could discover the final destination of X, by probing the adjacent nodes on the route
- // with a keysend payment of identical payment hash to X and observing the processing
- // time discrepancies due to a hash collision with X.
- let hashed_preimage = PaymentHash(Sha256::hash(&payment_preimage.0).into_inner());
- if hashed_preimage != payment_hash {
- return Err(InboundOnionErr {
- err_code: 0x4000|22,
- err_data: Vec::new(),
- msg: "Payment preimage didn't match payment hash",
- });
- }
- if !self.default_configuration.accept_mpp_keysend && payment_data.is_some() {
- return Err(InboundOnionErr {
- err_code: 0x4000|22,
- err_data: Vec::new(),
- msg: "We don't support MPP keysend payments",
- });
- }
- PendingHTLCRouting::ReceiveKeysend {
- payment_data,
- payment_preimage,
- payment_metadata,
- incoming_cltv_expiry: hop_data.outgoing_cltv_value,
- }
- } else if let Some(data) = payment_data {
- PendingHTLCRouting::Receive {
- payment_data: data,
- payment_metadata,
- incoming_cltv_expiry: hop_data.outgoing_cltv_value,
- phantom_shared_secret,
- }
- } else {
- return Err(InboundOnionErr {
- err_code: 0x4000|0x2000|3,
- err_data: Vec::new(),
- msg: "We require payment_secrets",
- });
- }
- },
+ }
+ if !self.default_configuration.accept_mpp_keysend && payment_data.is_some() {
+ return Err(InboundOnionErr {
+ err_code: 0x4000|22,
+ err_data: Vec::new(),
+ msg: "We don't support MPP keysend payments",
+ });
+ }
+ PendingHTLCRouting::ReceiveKeysend {
+ payment_data,
+ payment_preimage,
+ payment_metadata,
+ incoming_cltv_expiry: outgoing_cltv_value,
+ custom_tlvs,
+ }
+ } else if let Some(data) = payment_data {
+ PendingHTLCRouting::Receive {
+ payment_data: data,
+ payment_metadata,
+ incoming_cltv_expiry: outgoing_cltv_value,
+ phantom_shared_secret,
+ custom_tlvs,
+ }
+ } else {
+ return Err(InboundOnionErr {
+ err_code: 0x4000|0x2000|3,
+ err_data: Vec::new(),
+ msg: "We require payment_secrets",
+ });