}
/// returns the hop data, as well as the first-hop value_msat and CLTV value we should send.
-pub(super) fn build_onion_payloads(path: &Path, total_msat: u64, mut recipient_onion: RecipientOnionFields, starting_htlc_offset: u32, keysend_preimage: &Option<PaymentPreimage>) -> Result<(Vec<msgs::OnionHopData>, u64, u32), APIError> {
+pub(super) fn build_onion_payloads(path: &Path, total_msat: u64, mut recipient_onion: RecipientOnionFields, starting_htlc_offset: u32, keysend_preimage: &Option<PaymentPreimage>) -> Result<(Vec<msgs::OutboundOnionPayload>, u64, u32), APIError> {
let mut cur_value_msat = 0u64;
let mut cur_cltv = starting_htlc_offset;
let mut last_short_channel_id = 0;
- let mut res: Vec<msgs::OnionHopData> = Vec::with_capacity(path.hops.len());
+ let mut res: Vec<msgs::OutboundOnionPayload> = Vec::with_capacity(path.hops.len());
for (idx, hop) in path.hops.iter().rev().enumerate() {
// First hop gets special values so that it can check, on receipt, that everything is
// the intended recipient).
let value_msat = if cur_value_msat == 0 { hop.fee_msat } else { cur_value_msat };
let cltv = if cur_cltv == starting_htlc_offset { hop.cltv_expiry_delta + starting_htlc_offset } else { cur_cltv };
- res.insert(0, msgs::OnionHopData {
- format: if idx == 0 {
- msgs::OnionHopDataFormat::FinalNode {
- payment_data: if let Some(secret) = recipient_onion.payment_secret.take() {
- Some(msgs::FinalOnionHopData {
- payment_secret: secret,
- total_msat,
- })
- } else { None },
- payment_metadata: recipient_onion.payment_metadata.take(),
- keysend_preimage: *keysend_preimage,
- }
- } else {
- msgs::OnionHopDataFormat::NonFinalNode {
- short_channel_id: last_short_channel_id,
- }
- },
- amt_to_forward: value_msat,
- outgoing_cltv_value: cltv,
+ res.insert(0, if idx == 0 {
+ msgs::OutboundOnionPayload::Receive {
+ payment_data: if let Some(secret) = recipient_onion.payment_secret.take() {
+ Some(msgs::FinalOnionHopData {
+ payment_secret: secret,
+ total_msat,
+ })
+ } else { None },
+ payment_metadata: recipient_onion.payment_metadata.take(),
+ keysend_preimage: *keysend_preimage,
+ custom_tlvs: recipient_onion.custom_tlvs.clone(),
+ amt_msat: value_msat,
+ outgoing_cltv_value: cltv,
+ }
+ } else {
+ msgs::OutboundOnionPayload::Forward {
+ short_channel_id: last_short_channel_id,
+ amt_to_forward: value_msat,
+ outgoing_cltv_value: cltv,
+ }
});
cur_value_msat += hop.fee_msat;
if cur_value_msat >= 21000000 * 100000000 * 1000 {
}
}
-pub(super) fn construct_onion_packet(payloads: Vec<msgs::OnionHopData>, onion_keys: Vec<OnionKeys>, prng_seed: [u8; 32], associated_data: &PaymentHash) -> Result<msgs::OnionPacket, ()> {
+pub(super) fn construct_onion_packet(
+ payloads: Vec<msgs::OutboundOnionPayload>, onion_keys: Vec<OnionKeys>, prng_seed: [u8; 32],
+ associated_data: &PaymentHash
+) -> Result<msgs::OnionPacket, ()> {
let mut packet_data = [0; ONION_DATA_LEN];
let mut chacha = ChaCha20::new(&prng_seed, &[0; 8]);
// with raw hex instead of our in-memory enums, as the payloads contains custom types, and
// we have no way of representing that with our enums.
let payloads = vec!(
- RawOnionHopData::new(msgs::OnionHopData {
- format: msgs::OnionHopDataFormat::NonFinalNode {
- short_channel_id: 1,
- },
+ RawOnionHopData::new(msgs::OutboundOnionPayload::Forward {
+ short_channel_id: 1,
amt_to_forward: 15000,
outgoing_cltv_value: 1500,
}),
RawOnionHopData {
data: hex::decode("52020236b00402057806080000000000000002fd02013c0102030405060708090a0b0c0d0e0f0102030405060708090a0b0c0d0e0f0102030405060708090a0b0c0d0e0f0102030405060708090a0b0c0d0e0f").unwrap(),
},
- RawOnionHopData::new(msgs::OnionHopData {
- format: msgs::OnionHopDataFormat::NonFinalNode {
- short_channel_id: 3,
- },
+ RawOnionHopData::new(msgs::OutboundOnionPayload::Forward {
+ short_channel_id: 3,
amt_to_forward: 12500,
outgoing_cltv_value: 1250,
}),
- RawOnionHopData::new(msgs::OnionHopData {
- format: msgs::OnionHopDataFormat::NonFinalNode {
- short_channel_id: 4,
- },
+ RawOnionHopData::new(msgs::OutboundOnionPayload::Forward {
+ short_channel_id: 4,
amt_to_forward: 10000,
outgoing_cltv_value: 1000,
}),
data: Vec<u8>
}
impl RawOnionHopData {
- fn new(orig: msgs::OnionHopData) -> Self {
+ fn new(orig: msgs::OutboundOnionPayload) -> Self {
Self { data: orig.encode() }
}
}