// final_expiry_too_soon
// We have to have some headroom to broadcast on chain if we have the preimage, so make sure
// we have at least HTLC_FAIL_BACK_BUFFER blocks to go.
+ //
// Also, ensure that, in the case of an unknown preimage for the received payment hash, our
// payment logic has enough time to fail the HTLC backward before our onchain logic triggers a
// channel closure (see HTLC_FAIL_BACK_BUFFER rationale).
match claimable_htlc.onion_payload {
OnionPayload::Invoice { .. } => {
let payment_data = payment_data.unwrap();
- let payment_preimage = match inbound_payment::verify(payment_hash, &payment_data, self.highest_seen_timestamp.load(Ordering::Acquire) as u64, &self.inbound_payment_key, &self.logger) {
- Ok(payment_preimage) => payment_preimage,
+ let (payment_preimage, min_final_cltv_expiry_delta) = match inbound_payment::verify(payment_hash, &payment_data, self.highest_seen_timestamp.load(Ordering::Acquire) as u64, &self.inbound_payment_key, &self.logger) {
+ Ok(result) => result,
Err(()) => {
+ log_trace!(self.logger, "Failing new HTLC with payment_hash {} as payment verification failed", log_bytes!(payment_hash.0));
fail_htlc!(claimable_htlc, payment_hash);
continue
}
};
+ if let Some(min_final_cltv_expiry_delta) = min_final_cltv_expiry_delta {
+ let expected_min_expiry_height = (self.current_best_block().height() + min_final_cltv_expiry_delta as u32) as u64;
+ if (cltv_expiry as u64) < expected_min_expiry_height {
+ log_trace!(self.logger, "Failing new HTLC with payment_hash {} as its CLTV expiry was too soon (had {}, earliest expected {})",
+ log_bytes!(payment_hash.0), cltv_expiry, expected_min_expiry_height);
+ fail_htlc!(claimable_htlc, payment_hash);
+ continue;
+ }
+ }
check_total_value!(payment_data, payment_preimage);
},
OnionPayload::Spontaneous(preimage) => {
///
/// Errors if `min_value_msat` is greater than total bitcoin supply.
///
+ /// If `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
+ /// on versions of LDK prior to 0.0.114.
+ ///
/// [`claim_funds`]: Self::claim_funds
/// [`PaymentClaimable`]: events::Event::PaymentClaimable
/// [`PaymentClaimable::payment_preimage`]: events::Event::PaymentClaimable::payment_preimage
/// [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash
- pub fn create_inbound_payment(&self, min_value_msat: Option<u64>, invoice_expiry_delta_secs: u32) -> Result<(PaymentHash, PaymentSecret), ()> {
- inbound_payment::create(&self.inbound_payment_key, min_value_msat, invoice_expiry_delta_secs, &self.entropy_source, self.highest_seen_timestamp.load(Ordering::Acquire) as u64)
+ pub fn create_inbound_payment(&self, min_value_msat: Option<u64>, invoice_expiry_delta_secs: u32,
+ min_final_cltv_expiry_delta: Option<u16>) -> Result<(PaymentHash, PaymentSecret), ()> {
+ inbound_payment::create(&self.inbound_payment_key, min_value_msat, invoice_expiry_delta_secs,
+ &self.entropy_source, self.highest_seen_timestamp.load(Ordering::Acquire) as u64,
+ min_final_cltv_expiry_delta)
}
/// Legacy version of [`create_inbound_payment`]. Use this method if you wish to share
///
/// Errors if `min_value_msat` is greater than total bitcoin supply.
///
+ /// If `min_final_cltv_expiry_delta` is set to some value, then the payment will not be receivable
+ /// on versions of LDK prior to 0.0.114.
+ ///
/// [`create_inbound_payment`]: Self::create_inbound_payment
/// [`PaymentClaimable`]: events::Event::PaymentClaimable
- pub fn create_inbound_payment_for_hash(&self, payment_hash: PaymentHash, min_value_msat: Option<u64>, invoice_expiry_delta_secs: u32) -> Result<PaymentSecret, ()> {
- inbound_payment::create_from_hash(&self.inbound_payment_key, min_value_msat, payment_hash, invoice_expiry_delta_secs, self.highest_seen_timestamp.load(Ordering::Acquire) as u64)
+ pub fn create_inbound_payment_for_hash(&self, payment_hash: PaymentHash, min_value_msat: Option<u64>,
+ invoice_expiry_delta_secs: u32, min_final_cltv_expiry: Option<u16>) -> Result<PaymentSecret, ()> {
+ inbound_payment::create_from_hash(&self.inbound_payment_key, min_value_msat, payment_hash,
+ invoice_expiry_delta_secs, self.highest_seen_timestamp.load(Ordering::Acquire) as u64,
+ min_final_cltv_expiry)
}
/// Legacy version of [`create_inbound_payment_for_hash`]. Use this method if you wish to share
payment_preimage: match pending_inbound_payments.get(&payment_hash) {
Some(inbound_payment) => inbound_payment.payment_preimage,
None => match inbound_payment::verify(payment_hash, &hop_data, 0, &expanded_inbound_key, &args.logger) {
- Ok(payment_preimage) => payment_preimage,
+ Ok((payment_preimage, _)) => payment_preimage,
Err(()) => {
log_error!(args.logger, "Failed to read claimable payment data for HTLC with payment hash {} - was not a pending inbound payment and didn't match our payment key", log_bytes!(payment_hash.0));
return Err(DecodeError::InvalidValue);
payment_preimage.0[0..8].copy_from_slice(&payment_count.to_le_bytes());
payment_count += 1;
let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
- let payment_secret = $node_b.create_inbound_payment_for_hash(payment_hash, None, 7200).unwrap();
+ let payment_secret = $node_b.create_inbound_payment_for_hash(payment_hash, None, 7200, None).unwrap();
$node_a.send_payment(&route, payment_hash, &Some(payment_secret), PaymentId(payment_hash.0)).unwrap();
let payment_event = SendEvent::from_event($node_a.get_and_clear_pending_msg_events().pop().unwrap());
projects / rust-lightning / blobdiff