From: Matt Corallo Date: Thu, 25 Apr 2024 20:37:30 +0000 (+0000) Subject: Drop `PaymentContext` from `OnionPayload` as its not needed X-Git-Url: http://git.bitcoin.ninja/?a=commitdiff_plain;h=98398fe4e481b1b57e5d62741d5c5882a12ca7be;p=rust-lightning Drop `PaymentContext` from `OnionPayload` as its not needed This saves some space on disk and a bit of space in memory, but also avoids some unnecessary `clone`s. As this was added since the last release there is no need for backwards compat handling. --- diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs index 05d435150..77e074bf7 100644 --- a/lightning/src/ln/channelmanager.rs +++ b/lightning/src/ln/channelmanager.rs @@ -357,11 +357,6 @@ enum OnionPayload { /// This is only here for backwards-compatibility in serialization, in the future it can be /// removed, breaking clients running 0.0.106 and earlier. _legacy_hop_data: Option, - /// The context of the payment included by the recipient in a blinded path, or `None` if a - /// blinded path was not used. - /// - /// Used in part to determine the [`events::PaymentPurpose`]. - payment_context: Option, }, /// Contains the payer-provided preimage. Spontaneous(PaymentPreimage), @@ -5346,7 +5341,7 @@ where } }) => { let blinded_failure = routing.blinded_failure(); - let (cltv_expiry, onion_payload, payment_data, phantom_shared_secret, mut onion_fields) = match routing { + let (cltv_expiry, onion_payload, payment_data, phantom_shared_secret, mut onion_fields, payment_context_opt) = match routing { PendingHTLCRouting::Receive { payment_data, payment_metadata, payment_context, incoming_cltv_expiry, phantom_shared_secret, custom_tlvs, @@ -5355,8 +5350,9 @@ where let _legacy_hop_data = Some(payment_data.clone()); let onion_fields = RecipientOnionFields { payment_secret: Some(payment_data.payment_secret), payment_metadata, custom_tlvs }; - (incoming_cltv_expiry, OnionPayload::Invoice { _legacy_hop_data, payment_context }, - Some(payment_data), phantom_shared_secret, onion_fields) + (incoming_cltv_expiry, OnionPayload::Invoice { _legacy_hop_data }, + Some(payment_data), phantom_shared_secret, onion_fields, + Some(payment_context)) }, PendingHTLCRouting::ReceiveKeysend { payment_data, payment_preimage, payment_metadata, @@ -5368,7 +5364,7 @@ where custom_tlvs, }; (incoming_cltv_expiry, OnionPayload::Spontaneous(payment_preimage), - payment_data, None, onion_fields) + payment_data, None, onion_fields, None) }, _ => { panic!("short_channel_id == 0 should imply any pending_forward entries are of type Receive"); @@ -5530,7 +5526,7 @@ where match payment_secrets.entry(payment_hash) { hash_map::Entry::Vacant(_) => { match claimable_htlc.onion_payload { - OnionPayload::Invoice { ref payment_context, .. } => { + OnionPayload::Invoice { .. } => { let payment_data = payment_data.unwrap(); 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, @@ -5547,10 +5543,17 @@ where fail_htlc!(claimable_htlc, payment_hash); } } + let payment_context = + if let Some(context) = payment_context_opt { + context + } else { + debug_assert!(false, "The claimable_htlc type is invoice which implies a context"); + fail_htlc!(claimable_htlc, payment_hash); + }; let purpose = events::PaymentPurpose::from_parts( payment_preimage.clone(), payment_data.payment_secret, - payment_context.clone(), + payment_context, ); check_total_value!(purpose); }, @@ -5561,12 +5564,12 @@ where } }, hash_map::Entry::Occupied(inbound_payment) => { - let payment_context = match claimable_htlc.onion_payload { - OnionPayload::Spontaneous(_) => { + let payment_context = match payment_context_opt { + None => { log_trace!(self.logger, "Failing new keysend HTLC with payment_hash {} because we already have an inbound payment with the same payment hash", &payment_hash); fail_htlc!(claimable_htlc, payment_hash); }, - OnionPayload::Invoice { ref payment_context, .. } => payment_context, + Some(payment_context) => payment_context, }; let payment_data = payment_data.unwrap(); if inbound_payment.get().payment_secret != payment_data.payment_secret { @@ -5580,7 +5583,7 @@ where let purpose = events::PaymentPurpose::from_parts( inbound_payment.get().payment_preimage, payment_data.payment_secret, - payment_context.clone(), + payment_context, ); let payment_claimable_generated = check_total_value!(purpose); if payment_claimable_generated { @@ -10815,11 +10818,11 @@ impl_writeable_tlv_based!(HTLCPreviousHopData, { impl Writeable for ClaimableHTLC { fn write(&self, writer: &mut W) -> Result<(), io::Error> { - let (payment_data, keysend_preimage, payment_context) = match &self.onion_payload { - OnionPayload::Invoice { _legacy_hop_data, payment_context } => { - (_legacy_hop_data.as_ref(), None, payment_context.as_ref()) + let (payment_data, keysend_preimage) = match &self.onion_payload { + OnionPayload::Invoice { _legacy_hop_data } => { + (_legacy_hop_data.as_ref(), None) }, - OnionPayload::Spontaneous(preimage) => (None, Some(preimage), None), + OnionPayload::Spontaneous(preimage) => (None, Some(preimage)), }; write_tlv_fields!(writer, { (0, self.prev_hop, required), @@ -10831,7 +10834,6 @@ impl Writeable for ClaimableHTLC { (6, self.cltv_expiry, required), (8, keysend_preimage, option), (10, self.counterparty_skimmed_fee_msat, option), - (11, payment_context, option), }); Ok(()) } @@ -10849,7 +10851,6 @@ impl Readable for ClaimableHTLC { (6, cltv_expiry, required), (8, keysend_preimage, option), (10, counterparty_skimmed_fee_msat, option), - (11, payment_context, option), }); let payment_data: Option = payment_data_opt; let value = value_ser.0.unwrap(); @@ -10870,7 +10871,7 @@ impl Readable for ClaimableHTLC { } total_msat = Some(payment_data.as_ref().unwrap().total_msat); } - OnionPayload::Invoice { _legacy_hop_data: payment_data, payment_context } + OnionPayload::Invoice { _legacy_hop_data: payment_data } }, }; Ok(Self { @@ -12108,7 +12109,7 @@ where return Err(DecodeError::InvalidValue); } let purpose = match &htlcs[0].onion_payload { - OnionPayload::Invoice { _legacy_hop_data, payment_context: _ } => { + OnionPayload::Invoice { _legacy_hop_data } => { if let Some(hop_data) = _legacy_hop_data { events::PaymentPurpose::Bolt11InvoicePayment { payment_preimage: match pending_inbound_payments.get(&payment_hash) {