use routing::router::RouteHop;
use bitcoin::blockdata::script::Script;
-
+use bitcoin::hashes::Hash;
+use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::secp256k1::key::PublicKey;
use io;
use prelude::*;
use core::time::Duration;
use core::ops::Deref;
+use bitcoin::Transaction;
/// Some information provided on receipt of payment depends on whether the payment received is a
/// spontaneous payment or a "conventional" lightning payment that's paying an invoice.
user_channel_id: u64,
},
/// Indicates we've received money! Just gotta dig out that payment preimage and feed it to
- /// ChannelManager::claim_funds to get it....
- /// Note that if the preimage is not known or the amount paid is incorrect, you should call
- /// ChannelManager::fail_htlc_backwards to free up resources for this HTLC and avoid
+ /// [`ChannelManager::claim_funds`] to get it....
+ /// Note that if the preimage is not known, you should call
+ /// [`ChannelManager::fail_htlc_backwards`] to free up resources for this HTLC and avoid
/// network congestion.
- /// The amount paid should be considered 'incorrect' when it is less than or more than twice
- /// the amount expected.
- /// If you fail to call either ChannelManager::claim_funds or
- /// ChannelManager::fail_htlc_backwards within the HTLC's timeout, the HTLC will be
+ /// If you fail to call either [`ChannelManager::claim_funds`] or
+ /// [`ChannelManager::fail_htlc_backwards`] within the HTLC's timeout, the HTLC will be
/// automatically failed.
+ ///
+ /// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
+ /// [`ChannelManager::fail_htlc_backwards`]: crate::ln::channelmanager::ChannelManager::fail_htlc_backwards
PaymentReceived {
/// The hash for which the preimage should be handed to the ChannelManager.
payment_hash: PaymentHash,
- /// The value, in thousandths of a satoshi, that this payment is for. Note that you must
- /// compare this to the expected value before accepting the payment (as otherwise you are
- /// providing proof-of-payment for less than the value you expected!).
+ /// The value, in thousandths of a satoshi, that this payment is for.
amt: u64,
/// Information for claiming this received payment, based on whether the purpose of the
/// payment is to pay an invoice or to send a spontaneous payment.
/// Note that this serves as a payment receipt, if you wish to have such a thing, you must
/// store it somehow!
payment_preimage: PaymentPreimage,
+ /// The hash which was given to [`ChannelManager::send_payment`].
+ ///
+ /// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
+ payment_hash: PaymentHash,
},
/// Indicates an outbound payment we made failed. Probably some intermediary node dropped
/// something. You may wish to retry with a different route.
all_paths_failed: bool,
/// The payment path that failed.
path: Vec<RouteHop>,
+ /// The channel responsible for the failed payment path.
+ ///
+ /// If this is `Some`, then the corresponding channel should be avoided when the payment is
+ /// retried. May be `None` for older [`Event`] serializations.
+ short_channel_id: Option<u64>,
#[cfg(test)]
error_code: Option<u16>,
#[cfg(test)]
channel_id: [u8; 32],
/// The reason the channel was closed.
reason: ClosureReason
+ },
+ /// Used to indicate to the user that they can abandon the funding transaction and recycle the
+ /// inputs for another purpose.
+ DiscardFunding {
+ /// The channel_id of the channel which has been closed.
+ channel_id: [u8; 32],
+ /// The full transaction received from the user
+ transaction: Transaction
}
}
(8, payment_preimage, option),
});
},
- &Event::PaymentSent { ref payment_preimage } => {
+ &Event::PaymentSent { ref payment_preimage, ref payment_hash} => {
2u8.write(writer)?;
write_tlv_fields!(writer, {
(0, payment_preimage, required),
+ (1, payment_hash, required),
});
},
&Event::PaymentPathFailed { ref payment_hash, ref rejected_by_dest, ref network_update,
- ref all_paths_failed, ref path,
+ ref all_paths_failed, ref path, ref short_channel_id,
#[cfg(test)]
ref error_code,
#[cfg(test)]
(2, rejected_by_dest, required),
(3, all_paths_failed, required),
(5, path, vec_type),
+ (7, short_channel_id, option),
});
},
&Event::PendingHTLCsForwardable { time_forwardable: _ } => {
(2, reason, required)
});
},
+ &Event::DiscardFunding { ref channel_id, ref transaction } => {
+ 11u8.write(writer)?;
+ write_tlv_fields!(writer, {
+ (0, channel_id, required),
+ (2, transaction, required)
+ })
+ },
// Note that, going forward, all new events must only write data inside of
// `write_tlv_fields`. Versions 0.0.101+ will ignore odd-numbered events that write
// data via `write_tlv_fields`.
2u8 => {
let f = || {
let mut payment_preimage = PaymentPreimage([0; 32]);
+ let mut payment_hash = None;
read_tlv_fields!(reader, {
(0, payment_preimage, required),
+ (1, payment_hash, option),
});
+ if payment_hash.is_none() {
+ payment_hash = Some(PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()));
+ }
Ok(Some(Event::PaymentSent {
payment_preimage,
+ payment_hash: payment_hash.unwrap(),
}))
};
f()
let mut network_update = None;
let mut all_paths_failed = Some(true);
let mut path: Option<Vec<RouteHop>> = Some(vec![]);
+ let mut short_channel_id = None;
read_tlv_fields!(reader, {
(0, payment_hash, required),
(1, network_update, ignorable),
(2, rejected_by_dest, required),
(3, all_paths_failed, option),
(5, path, vec_type),
+ (7, short_channel_id, ignorable),
});
Ok(Some(Event::PaymentPathFailed {
payment_hash,
network_update,
all_paths_failed: all_paths_failed.unwrap(),
path: path.unwrap(),
+ short_channel_id,
#[cfg(test)]
error_code,
#[cfg(test)]
f()
},
9u8 => {
- let mut channel_id = [0; 32];
- let mut reason = None;
- read_tlv_fields!(reader, {
- (0, channel_id, required),
- (2, reason, ignorable),
- });
- if reason.is_none() { return Ok(None); }
- Ok(Some(Event::ChannelClosed { channel_id, reason: reason.unwrap() }))
+ let f = || {
+ let mut channel_id = [0; 32];
+ let mut reason = None;
+ read_tlv_fields!(reader, {
+ (0, channel_id, required),
+ (2, reason, ignorable),
+ });
+ if reason.is_none() { return Ok(None); }
+ Ok(Some(Event::ChannelClosed { channel_id, reason: reason.unwrap() }))
+ };
+ f()
+ },
+ 11u8 => {
+ let f = || {
+ let mut channel_id = [0; 32];
+ let mut transaction = Transaction{ version: 2, lock_time: 0, input: Vec::new(), output: Vec::new() };
+ read_tlv_fields!(reader, {
+ (0, channel_id, required),
+ (2, transaction, required),
+ });
+ Ok(Some(Event::DiscardFunding { channel_id, transaction } ))
+ };
+ f()
},
// Versions prior to 0.0.100 did not ignore odd types, instead returning InvalidValue.
// Version 0.0.100 failed to properly ignore odd types, possibly resulting in corrupt