use bitcoin::network::constants::Network;
use bitcoin::hashes::{Hash, HashEngine};
-use bitcoin::hashes::hmac::{Hmac, HmacEngine};
use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::hashes::sha256d::Hash as Sha256dHash;
-use bitcoin::hashes::cmp::fixed_time_eq;
use bitcoin::hash_types::{BlockHash, Txid};
use bitcoin::secp256k1::key::{SecretKey,PublicKey};
use ln::{PaymentHash, PaymentPreimage, PaymentSecret};
use ln::channel::{Channel, ChannelError, ChannelUpdateStatus, UpdateFulfillCommitFetch};
use ln::features::{InitFeatures, NodeFeatures};
-use routing::router::{Payee, Route, RouteHop, RoutePath, RouteParameters};
+use routing::router::{PaymentParameters, Route, RouteHop, RoutePath, RouteParameters};
use ln::msgs;
use ln::msgs::NetAddress;
use ln::onion_utils;
use ln::msgs::{ChannelMessageHandler, DecodeError, LightningError, MAX_VALUE_MSAT, OptionalField};
-use chain::keysinterface::{Sign, KeysInterface, KeysManager, InMemorySigner};
+use chain::keysinterface::{Sign, KeysInterface, KeysManager, InMemorySigner, Recipient};
use util::config::UserConfig;
use util::events::{EventHandler, EventsProvider, MessageSendEvent, MessageSendEventsProvider, ClosureReason};
use util::{byte_utils, events};
+use util::scid_utils::fake_scid;
use util::ser::{BigSize, FixedLengthReader, Readable, ReadableArgs, MaybeReadable, Writeable, Writer};
-use util::chacha20::{ChaCha20, ChaChaReader};
use util::logger::{Level, Logger};
use util::errors::APIError;
use prelude::*;
use core::{cmp, mem};
use core::cell::RefCell;
-use io::{Cursor, Read};
+use io::Read;
use sync::{Arc, Condvar, Mutex, MutexGuard, RwLock, RwLockReadGuard};
use core::sync::atomic::{AtomicUsize, Ordering};
use core::time::Duration;
use ln::msgs;
use ln::msgs::MAX_VALUE_MSAT;
use util::chacha20::ChaCha20;
+ use util::crypto::hkdf_extract_expand_thrice;
use util::logger::Logger;
use core::convert::TryInto;
impl ExpandedKey {
pub(super) fn new(key_material: &KeyMaterial) -> ExpandedKey {
- hkdf_extract_expand(b"LDK Inbound Payment Key Expansion", &key_material)
+ let (metadata_key, ldk_pmt_hash_key, user_pmt_hash_key) =
+ hkdf_extract_expand_thrice(b"LDK Inbound Payment Key Expansion", &key_material.0);
+ Self {
+ metadata_key,
+ ldk_pmt_hash_key,
+ user_pmt_hash_key,
+ }
}
}
}
return Ok(PaymentPreimage(decoded_payment_preimage))
}
-
- fn hkdf_extract_expand(salt: &[u8], ikm: &KeyMaterial) -> ExpandedKey {
- let mut hmac = HmacEngine::<Sha256>::new(salt);
- hmac.input(&ikm.0);
- let prk = Hmac::from_engine(hmac).into_inner();
- let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
- hmac.input(&[1; 1]);
- let metadata_key = Hmac::from_engine(hmac).into_inner();
-
- let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
- hmac.input(&metadata_key);
- hmac.input(&[2; 1]);
- let ldk_pmt_hash_key = Hmac::from_engine(hmac).into_inner();
-
- let mut hmac = HmacEngine::<Sha256>::new(&prk[..]);
- hmac.input(&ldk_pmt_hash_key);
- hmac.input(&[3; 1]);
- let user_pmt_hash_key = Hmac::from_engine(hmac).into_inner();
-
- ExpandedKey {
- metadata_key,
- ldk_pmt_hash_key,
- user_pmt_hash_key,
- }
- }
}
// We hold various information about HTLC relay in the HTLC objects in Channel itself:
// our payment, which we can use to decode errors or inform the user that the payment was sent.
#[derive(Clone)] // See Channel::revoke_and_ack for why, tl;dr: Rust bug
-enum PendingHTLCRouting {
+pub(super) enum PendingHTLCRouting {
Forward {
onion_packet: msgs::OnionPacket,
short_channel_id: u64, // This should be NonZero<u64> eventually when we bump MSRV
Receive {
payment_data: msgs::FinalOnionHopData,
incoming_cltv_expiry: u32, // Used to track when we should expire pending HTLCs that go unclaimed
+ phantom_shared_secret: Option<[u8; 32]>,
},
ReceiveKeysend {
payment_preimage: PaymentPreimage,
#[derive(Clone)] // See Channel::revoke_and_ack for why, tl;dr: Rust bug
pub(super) struct PendingHTLCInfo {
- routing: PendingHTLCRouting,
- incoming_shared_secret: [u8; 32],
+ pub(super) routing: PendingHTLCRouting,
+ pub(super) incoming_shared_secret: [u8; 32],
payment_hash: PaymentHash,
pub(super) amt_to_forward: u64,
pub(super) outgoing_cltv_value: u32,
short_channel_id: u64,
htlc_id: u64,
incoming_packet_shared_secret: [u8; 32],
+ phantom_shared_secret: Option<[u8; 32]>,
// This field is consumed by `claim_funds_from_hop()` when updating a force-closed backwards
// channel with a preimage provided by the forward channel.
first_hop_htlc_msat: u64,
payment_id: PaymentId,
payment_secret: Option<PaymentSecret>,
- payee: Option<Payee>,
+ payment_params: Option<PaymentParameters>,
},
}
#[allow(clippy::derive_hash_xor_eq)] // Our Hash is faithful to the data, we just don't have SecretKey::hash
0u8.hash(hasher);
prev_hop_data.hash(hasher);
},
- HTLCSource::OutboundRoute { path, session_priv, payment_id, payment_secret, first_hop_htlc_msat, payee } => {
+ HTLCSource::OutboundRoute { path, session_priv, payment_id, payment_secret, first_hop_htlc_msat, payment_params } => {
1u8.hash(hasher);
path.hash(hasher);
session_priv[..].hash(hasher);
payment_id.hash(hasher);
payment_secret.hash(hasher);
first_hop_htlc_msat.hash(hasher);
- payee.hash(hasher);
+ payment_params.hash(hasher);
},
}
}
first_hop_htlc_msat: 0,
payment_id: PaymentId([2; 32]),
payment_secret: None,
- payee: None,
+ payment_params: None,
}
}
}
}
}
+struct ReceiveError {
+ err_code: u16,
+ err_data: Vec<u8>,
+ msg: &'static str,
+}
+
/// Return value for claim_funds_from_hop
enum ClaimFundsFromHop {
PrevHopForceClosed,
Self {
err: match err {
ChannelError::Warn(msg) => LightningError {
- err: msg,
- action: msgs::ErrorAction::IgnoreError,
+ err: msg.clone(),
+ action: msgs::ErrorAction::SendWarningMessage {
+ msg: msgs::WarningMessage {
+ channel_id,
+ data: msg
+ },
+ log_level: Level::Warn,
+ },
},
ChannelError::Ignore(msg) => LightningError {
err: msg,
inbound_payment_key: inbound_payment::ExpandedKey,
+ /// LDK puts the [fake scids] that it generates into namespaces, to identify the type of an
+ /// incoming payment. To make it harder for a third-party to identify the type of a payment,
+ /// we encrypt the namespace identifier using these bytes.
+ ///
+ /// [fake scids]: crate::util::scid_utils::fake_scid
+ fake_scid_rand_bytes: [u8; 32],
+
/// Used to track the last value sent in a node_announcement "timestamp" field. We ensure this
/// value increases strictly since we don't assume access to a time source.
last_node_announcement_serial: AtomicUsize,
},
}
+/// Route hints used in constructing invoices for [phantom node payents].
+///
+/// [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
+#[derive(Clone)]
+pub struct PhantomRouteHints {
+ /// The list of channels to be included in the invoice route hints.
+ pub channels: Vec<ChannelDetails>,
+ /// A fake scid used for representing the phantom node's fake channel in generating the invoice
+ /// route hints.
+ pub phantom_scid: u64,
+ /// The pubkey of the real backing node that would ultimately receive the payment.
+ pub real_node_pubkey: PublicKey,
+}
+
macro_rules! handle_error {
($self: ident, $internal: expr, $counterparty_node_id: expr) => {
match $internal {
($self: ident, $err: expr, $short_to_id: expr, $channel: expr, $channel_id: expr) => {
match $err {
ChannelError::Warn(msg) => {
- //TODO: Once warning messages are merged, we should send a `warning` message to our
- //peer here.
- (false, MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore(msg), $channel_id.clone()))
+ (false, MsgHandleErrInternal::from_chan_no_close(ChannelError::Warn(msg), $channel_id.clone()))
},
ChannelError::Ignore(msg) => {
(false, MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore(msg), $channel_id.clone()))
macro_rules! handle_chan_restoration_locked {
($self: ident, $channel_lock: expr, $channel_state: expr, $channel_entry: expr,
$raa: expr, $commitment_update: expr, $order: expr, $chanmon_update: expr,
- $pending_forwards: expr, $funding_broadcastable: expr, $funding_locked: expr) => { {
+ $pending_forwards: expr, $funding_broadcastable: expr, $funding_locked: expr, $announcement_sigs: expr) => { {
let mut htlc_forwards = None;
let counterparty_node_id = $channel_entry.get().get_counterparty_node_id();
node_id: counterparty_node_id,
msg,
});
- if let Some(announcement_sigs) = $self.get_announcement_sigs($channel_entry.get()) {
- $channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
- node_id: counterparty_node_id,
- msg: announcement_sigs,
- });
- }
$channel_state.short_to_id.insert($channel_entry.get().get_short_channel_id().unwrap(), $channel_entry.get().channel_id());
}
+ if let Some(msg) = $announcement_sigs {
+ $channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
+ node_id: counterparty_node_id,
+ msg,
+ });
+ }
let funding_broadcastable: Option<Transaction> = $funding_broadcastable; // Force type-checking to resolve
if let Some(monitor_update) = chanmon_update {
pending_inbound_payments: Mutex::new(HashMap::new()),
pending_outbound_payments: Mutex::new(HashMap::new()),
- our_network_key: keys_manager.get_node_secret(),
- our_network_pubkey: PublicKey::from_secret_key(&secp_ctx, &keys_manager.get_node_secret()),
+ our_network_key: keys_manager.get_node_secret(Recipient::Node).unwrap(),
+ our_network_pubkey: PublicKey::from_secret_key(&secp_ctx, &keys_manager.get_node_secret(Recipient::Node).unwrap()),
secp_ctx,
inbound_payment_key: expanded_inbound_key,
+ fake_scid_rand_bytes: keys_manager.get_secure_random_bytes(),
last_node_announcement_serial: AtomicUsize::new(0),
highest_seen_timestamp: AtomicUsize::new(0),
let mut channel_state = self.channel_state.lock().unwrap();
match channel_state.by_id.entry(temporary_channel_id) {
hash_map::Entry::Occupied(_) => {
- if cfg!(feature = "fuzztarget") {
+ if cfg!(fuzzing) {
return Err(APIError::APIMisuseError { err: "Fuzzy bad RNG".to_owned() });
} else {
panic!("RNG is bad???");
}
}
+ fn construct_recv_pending_htlc_info(&self, hop_data: msgs::OnionHopData, shared_secret: [u8; 32],
+ payment_hash: PaymentHash, amt_msat: u64, cltv_expiry: u32, phantom_shared_secret: Option<[u8; 32]>) -> Result<PendingHTLCInfo, ReceiveError>
+ {
+ // final_incorrect_cltv_expiry
+ if hop_data.outgoing_cltv_value != cltv_expiry {
+ return Err(ReceiveError {
+ msg: "Upstream node set CLTV to the wrong value",
+ err_code: 18,
+ err_data: byte_utils::be32_to_array(cltv_expiry).to_vec()
+ })
+ }
+ // 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).
+ if (hop_data.outgoing_cltv_value as u64) <= self.best_block.read().unwrap().height() as u64 + HTLC_FAIL_BACK_BUFFER as u64 + 1 {
+ return Err(ReceiveError {
+ err_code: 17,
+ err_data: Vec::new(),
+ msg: "The final CLTV expiry is too soon to handle",
+ });
+ }
+ if hop_data.amt_to_forward > amt_msat {
+ return Err(ReceiveError {
+ err_code: 19,
+ err_data: byte_utils::be64_to_array(amt_msat).to_vec(),
+ msg: "Upstream node sent less than we were supposed to receive in payment",
+ });
+ }
+
+ let routing = match hop_data.format {
+ msgs::OnionHopDataFormat::Legacy { .. } => {
+ return Err(ReceiveError {
+ err_code: 0x4000|0x2000|3,
+ err_data: Vec::new(),
+ msg: "We require payment_secrets",
+ });
+ },
+ msgs::OnionHopDataFormat::NonFinalNode { .. } => {
+ return Err(ReceiveError {
+ err_code: 0x4000|22,
+ err_data: Vec::new(),
+ msg: "Got non final data with an HMAC of 0",
+ });
+ },
+ msgs::OnionHopDataFormat::FinalNode { payment_data, keysend_preimage } => {
+ if payment_data.is_some() && keysend_preimage.is_some() {
+ return Err(ReceiveError {
+ err_code: 0x4000|22,
+ err_data: Vec::new(),
+ msg: "We don't support MPP keysend payments",
+ });
+ } else if let Some(data) = payment_data {
+ PendingHTLCRouting::Receive {
+ payment_data: data,
+ incoming_cltv_expiry: hop_data.outgoing_cltv_value,
+ phantom_shared_secret,
+ }
+ } else 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(ReceiveError {
+ err_code: 0x4000|22,
+ err_data: Vec::new(),
+ msg: "Payment preimage didn't match payment hash",
+ });
+ }
+
+ PendingHTLCRouting::ReceiveKeysend {
+ payment_preimage,
+ incoming_cltv_expiry: hop_data.outgoing_cltv_value,
+ }
+ } else {
+ return Err(ReceiveError {
+ err_code: 0x4000|0x2000|3,
+ err_data: Vec::new(),
+ msg: "We require payment_secrets",
+ });
+ }
+ },
+ };
+ Ok(PendingHTLCInfo {
+ routing,
+ payment_hash,
+ incoming_shared_secret: shared_secret,
+ amt_to_forward: amt_msat,
+ outgoing_cltv_value: hop_data.outgoing_cltv_value,
+ })
+ }
+
fn decode_update_add_htlc_onion(&self, msg: &msgs::UpdateAddHTLC) -> (PendingHTLCStatus, MutexGuard<ChannelHolder<Signer>>) {
macro_rules! return_malformed_err {
($msg: expr, $err_code: expr) => {
arr.copy_from_slice(&SharedSecret::new(&msg.onion_routing_packet.public_key.unwrap(), &self.our_network_key)[..]);
arr
};
- let (rho, mu) = onion_utils::gen_rho_mu_from_shared_secret(&shared_secret);
if msg.onion_routing_packet.version != 0 {
//TODO: Spec doesn't indicate if we should only hash hop_data here (and in other
return_malformed_err!("Unknown onion packet version", 0x8000 | 0x4000 | 4);
}
- let mut hmac = HmacEngine::<Sha256>::new(&mu);
- hmac.input(&msg.onion_routing_packet.hop_data);
- hmac.input(&msg.payment_hash.0[..]);
- if !fixed_time_eq(&Hmac::from_engine(hmac).into_inner(), &msg.onion_routing_packet.hmac) {
- return_malformed_err!("HMAC Check failed", 0x8000 | 0x4000 | 5);
- }
-
let mut channel_state = None;
macro_rules! return_err {
($msg: expr, $err_code: expr, $data: expr) => {
}
}
- let mut chacha = ChaCha20::new(&rho, &[0u8; 8]);
- let mut chacha_stream = ChaChaReader { chacha: &mut chacha, read: Cursor::new(&msg.onion_routing_packet.hop_data[..]) };
- let (next_hop_data, next_hop_hmac): (msgs::OnionHopData, _) = {
- match <msgs::OnionHopData as Readable>::read(&mut chacha_stream) {
- Err(err) => {
- let error_code = match err {
- msgs::DecodeError::UnknownVersion => 0x4000 | 1, // unknown realm byte
- msgs::DecodeError::UnknownRequiredFeature|
- msgs::DecodeError::InvalidValue|
- msgs::DecodeError::ShortRead => 0x4000 | 22, // invalid_onion_payload
- _ => 0x2000 | 2, // Should never happen
- };
- return_err!("Unable to decode our hop data", error_code, &[0;0]);
- },
- Ok(msg) => {
- let mut hmac = [0; 32];
- if let Err(_) = chacha_stream.read_exact(&mut hmac[..]) {
- return_err!("Unable to decode hop data", 0x4000 | 22, &[0;0]);
- }
- (msg, hmac)
- },
- }
+ let next_hop = match onion_utils::decode_next_hop(shared_secret, &msg.onion_routing_packet.hop_data[..], msg.onion_routing_packet.hmac, msg.payment_hash) {
+ Ok(res) => res,
+ Err(onion_utils::OnionDecodeErr::Malformed { err_msg, err_code }) => {
+ return_malformed_err!(err_msg, err_code);
+ },
+ Err(onion_utils::OnionDecodeErr::Relay { err_msg, err_code }) => {
+ return_err!(err_msg, err_code, &[0; 0]);
+ },
};
- let pending_forward_info = if next_hop_hmac == [0; 32] {
- #[cfg(test)]
- {
- // In tests, make sure that the initial onion pcket data is, at least, non-0.
- // We could do some fancy randomness test here, but, ehh, whatever.
- // This checks for the issue where you can calculate the path length given the
- // onion data as all the path entries that the originator sent will be here
- // as-is (and were originally 0s).
- // Of course reverse path calculation is still pretty easy given naive routing
- // algorithms, but this fixes the most-obvious case.
- let mut next_bytes = [0; 32];
- chacha_stream.read_exact(&mut next_bytes).unwrap();
- assert_ne!(next_bytes[..], [0; 32][..]);
- chacha_stream.read_exact(&mut next_bytes).unwrap();
- assert_ne!(next_bytes[..], [0; 32][..]);
- }
+ let pending_forward_info = match next_hop {
+ onion_utils::Hop::Receive(next_hop_data) => {
+ // OUR PAYMENT!
+ match self.construct_recv_pending_htlc_info(next_hop_data, shared_secret, msg.payment_hash, msg.amount_msat, msg.cltv_expiry, None) {
+ Ok(info) => {
+ // Note that we could obviously respond immediately with an update_fulfill_htlc
+ // message, however that would leak that we are the recipient of this payment, so
+ // instead we stay symmetric with the forwarding case, only responding (after a
+ // delay) once they've send us a commitment_signed!
+ PendingHTLCStatus::Forward(info)
+ },
+ Err(ReceiveError { err_code, err_data, msg }) => return_err!(msg, err_code, &err_data)
+ }
+ },
+ onion_utils::Hop::Forward { next_hop_data, next_hop_hmac, new_packet_bytes } => {
+ let mut new_pubkey = msg.onion_routing_packet.public_key.unwrap();
+
+ let blinding_factor = {
+ let mut sha = Sha256::engine();
+ sha.input(&new_pubkey.serialize()[..]);
+ sha.input(&shared_secret);
+ Sha256::from_engine(sha).into_inner()
+ };
- // OUR PAYMENT!
- // 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).
- if (msg.cltv_expiry as u64) <= self.best_block.read().unwrap().height() as u64 + HTLC_FAIL_BACK_BUFFER as u64 + 1 {
- return_err!("The final CLTV expiry is too soon to handle", 17, &[0;0]);
- }
- // final_incorrect_htlc_amount
- if next_hop_data.amt_to_forward > msg.amount_msat {
- return_err!("Upstream node sent less than we were supposed to receive in payment", 19, &byte_utils::be64_to_array(msg.amount_msat));
- }
- // final_incorrect_cltv_expiry
- if next_hop_data.outgoing_cltv_value != msg.cltv_expiry {
- return_err!("Upstream node set CLTV to the wrong value", 18, &byte_utils::be32_to_array(msg.cltv_expiry));
- }
+ let public_key = if let Err(e) = new_pubkey.mul_assign(&self.secp_ctx, &blinding_factor[..]) {
+ Err(e)
+ } else { Ok(new_pubkey) };
- let routing = match next_hop_data.format {
- msgs::OnionHopDataFormat::Legacy { .. } => return_err!("We require payment_secrets", 0x4000|0x2000|3, &[0;0]),
- msgs::OnionHopDataFormat::NonFinalNode { .. } => return_err!("Got non final data with an HMAC of 0", 0x4000 | 22, &[0;0]),
- msgs::OnionHopDataFormat::FinalNode { payment_data, keysend_preimage } => {
- if payment_data.is_some() && keysend_preimage.is_some() {
- return_err!("We don't support MPP keysend payments", 0x4000|22, &[0;0]);
- } else if let Some(data) = payment_data {
- PendingHTLCRouting::Receive {
- payment_data: data,
- incoming_cltv_expiry: msg.cltv_expiry,
- }
- } else 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 != msg.payment_hash {
- return_err!("Payment preimage didn't match payment hash", 0x4000|22, &[0;0]);
- }
+ let outgoing_packet = msgs::OnionPacket {
+ version: 0,
+ public_key,
+ hop_data: new_packet_bytes,
+ hmac: next_hop_hmac.clone(),
+ };
- PendingHTLCRouting::ReceiveKeysend {
- payment_preimage,
- incoming_cltv_expiry: msg.cltv_expiry,
- }
- } else {
- return_err!("We require payment_secrets", 0x4000|0x2000|3, &[0;0]);
- }
- },
- };
+ let short_channel_id = match next_hop_data.format {
+ msgs::OnionHopDataFormat::Legacy { short_channel_id } => short_channel_id,
+ msgs::OnionHopDataFormat::NonFinalNode { short_channel_id } => short_channel_id,
+ msgs::OnionHopDataFormat::FinalNode { .. } => {
+ return_err!("Final Node OnionHopData provided for us as an intermediary node", 0x4000 | 22, &[0;0]);
+ },
+ };
- // Note that we could obviously respond immediately with an update_fulfill_htlc
- // message, however that would leak that we are the recipient of this payment, so
- // instead we stay symmetric with the forwarding case, only responding (after a
- // delay) once they've send us a commitment_signed!
-
- PendingHTLCStatus::Forward(PendingHTLCInfo {
- routing,
- payment_hash: msg.payment_hash.clone(),
- incoming_shared_secret: shared_secret,
- amt_to_forward: next_hop_data.amt_to_forward,
- outgoing_cltv_value: next_hop_data.outgoing_cltv_value,
- })
- } else {
- let mut new_packet_data = [0; 20*65];
- let read_pos = chacha_stream.read(&mut new_packet_data).unwrap();
- #[cfg(debug_assertions)]
- {
- // Check two things:
- // a) that the behavior of our stream here will return Ok(0) even if the TLV
- // read above emptied out our buffer and the unwrap() wont needlessly panic
- // b) that we didn't somehow magically end up with extra data.
- let mut t = [0; 1];
- debug_assert!(chacha_stream.read(&mut t).unwrap() == 0);
+ PendingHTLCStatus::Forward(PendingHTLCInfo {
+ routing: PendingHTLCRouting::Forward {
+ onion_packet: outgoing_packet,
+ short_channel_id,
+ },
+ payment_hash: msg.payment_hash.clone(),
+ incoming_shared_secret: shared_secret,
+ amt_to_forward: next_hop_data.amt_to_forward,
+ outgoing_cltv_value: next_hop_data.outgoing_cltv_value,
+ })
}
- // Once we've emptied the set of bytes our peer gave us, encrypt 0 bytes until we
- // fill the onion hop data we'll forward to our next-hop peer.
- chacha_stream.chacha.process_in_place(&mut new_packet_data[read_pos..]);
-
- let mut new_pubkey = msg.onion_routing_packet.public_key.unwrap();
-
- let blinding_factor = {
- let mut sha = Sha256::engine();
- sha.input(&new_pubkey.serialize()[..]);
- sha.input(&shared_secret);
- Sha256::from_engine(sha).into_inner()
- };
-
- let public_key = if let Err(e) = new_pubkey.mul_assign(&self.secp_ctx, &blinding_factor[..]) {
- Err(e)
- } else { Ok(new_pubkey) };
-
- let outgoing_packet = msgs::OnionPacket {
- version: 0,
- public_key,
- hop_data: new_packet_data,
- hmac: next_hop_hmac.clone(),
- };
-
- let short_channel_id = match next_hop_data.format {
- msgs::OnionHopDataFormat::Legacy { short_channel_id } => short_channel_id,
- msgs::OnionHopDataFormat::NonFinalNode { short_channel_id } => short_channel_id,
- msgs::OnionHopDataFormat::FinalNode { .. } => {
- return_err!("Final Node OnionHopData provided for us as an intermediary node", 0x4000 | 22, &[0;0]);
- },
- };
-
- PendingHTLCStatus::Forward(PendingHTLCInfo {
- routing: PendingHTLCRouting::Forward {
- onion_packet: outgoing_packet,
- short_channel_id,
- },
- payment_hash: msg.payment_hash.clone(),
- incoming_shared_secret: shared_secret,
- amt_to_forward: next_hop_data.amt_to_forward,
- outgoing_cltv_value: next_hop_data.outgoing_cltv_value,
- })
};
channel_state = Some(self.channel_state.lock().unwrap());
if let &PendingHTLCRouting::Forward { ref short_channel_id, .. } = routing {
let id_option = channel_state.as_ref().unwrap().short_to_id.get(&short_channel_id).cloned();
if let Some((err, code, chan_update)) = loop {
- let forwarding_id = match id_option {
+ let forwarding_id_opt = match id_option {
None => { // unknown_next_peer
- break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
+ // Note that this is likely a timing oracle for detecting whether an scid is a
+ // phantom.
+ if fake_scid::is_valid_phantom(&self.fake_scid_rand_bytes, *short_channel_id) {
+ None
+ } else {
+ break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
+ }
},
- Some(id) => id.clone(),
+ Some(id) => Some(id.clone()),
};
+ let (chan_update_opt, forwardee_cltv_expiry_delta) = if let Some(forwarding_id) = forwarding_id_opt {
+ let chan = channel_state.as_mut().unwrap().by_id.get_mut(&forwarding_id).unwrap();
+ // Leave channel updates as None for private channels.
+ let chan_update_opt = if chan.should_announce() {
+ Some(self.get_channel_update_for_unicast(chan).unwrap()) } else { None };
+ if !chan.should_announce() && !self.default_configuration.accept_forwards_to_priv_channels {
+ // Note that the behavior here should be identical to the above block - we
+ // should NOT reveal the existence or non-existence of a private channel if
+ // we don't allow forwards outbound over them.
+ break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
+ }
- let chan = channel_state.as_mut().unwrap().by_id.get_mut(&forwarding_id).unwrap();
-
- if !chan.should_announce() && !self.default_configuration.accept_forwards_to_priv_channels {
- // Note that the behavior here should be identical to the above block - we
- // should NOT reveal the existence or non-existence of a private channel if
- // we don't allow forwards outbound over them.
- break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
- }
+ // Note that we could technically not return an error yet here and just hope
+ // that the connection is reestablished or monitor updated by the time we get
+ // around to doing the actual forward, but better to fail early if we can and
+ // hopefully an attacker trying to path-trace payments cannot make this occur
+ // on a small/per-node/per-channel scale.
+ if !chan.is_live() { // channel_disabled
+ break Some(("Forwarding channel is not in a ready state.", 0x1000 | 20, chan_update_opt));
+ }
+ if *amt_to_forward < chan.get_counterparty_htlc_minimum_msat() { // amount_below_minimum
+ break Some(("HTLC amount was below the htlc_minimum_msat", 0x1000 | 11, chan_update_opt));
+ }
+ let fee = amt_to_forward.checked_mul(chan.get_fee_proportional_millionths() as u64)
+ .and_then(|prop_fee| { (prop_fee / 1000000)
+ .checked_add(chan.get_outbound_forwarding_fee_base_msat() as u64) });
+ if fee.is_none() || msg.amount_msat < fee.unwrap() || (msg.amount_msat - fee.unwrap()) < *amt_to_forward { // fee_insufficient
+ break Some(("Prior hop has deviated from specified fees parameters or origin node has obsolete ones", 0x1000 | 12, chan_update_opt));
+ }
+ (chan_update_opt, chan.get_cltv_expiry_delta())
+ } else { (None, MIN_CLTV_EXPIRY_DELTA) };
- // Note that we could technically not return an error yet here and just hope
- // that the connection is reestablished or monitor updated by the time we get
- // around to doing the actual forward, but better to fail early if we can and
- // hopefully an attacker trying to path-trace payments cannot make this occur
- // on a small/per-node/per-channel scale.
- if !chan.is_live() { // channel_disabled
- break Some(("Forwarding channel is not in a ready state.", 0x1000 | 20, Some(self.get_channel_update_for_unicast(chan).unwrap())));
- }
- if *amt_to_forward < chan.get_counterparty_htlc_minimum_msat() { // amount_below_minimum
- break Some(("HTLC amount was below the htlc_minimum_msat", 0x1000 | 11, Some(self.get_channel_update_for_unicast(chan).unwrap())));
- }
- let fee = amt_to_forward.checked_mul(chan.get_fee_proportional_millionths() as u64)
- .and_then(|prop_fee| { (prop_fee / 1000000)
- .checked_add(chan.get_outbound_forwarding_fee_base_msat() as u64) });
- if fee.is_none() || msg.amount_msat < fee.unwrap() || (msg.amount_msat - fee.unwrap()) < *amt_to_forward { // fee_insufficient
- break Some(("Prior hop has deviated from specified fees parameters or origin node has obsolete ones", 0x1000 | 12, Some(self.get_channel_update_for_unicast(chan).unwrap())));
- }
- if (msg.cltv_expiry as u64) < (*outgoing_cltv_value) as u64 + chan.get_cltv_expiry_delta() as u64 { // incorrect_cltv_expiry
- break Some(("Forwarding node has tampered with the intended HTLC values or origin node has an obsolete cltv_expiry_delta", 0x1000 | 13, Some(self.get_channel_update_for_unicast(chan).unwrap())));
+ if (msg.cltv_expiry as u64) < (*outgoing_cltv_value) as u64 + forwardee_cltv_expiry_delta as u64 { // incorrect_cltv_expiry
+ break Some(("Forwarding node has tampered with the intended HTLC values or origin node has an obsolete cltv_expiry_delta", 0x1000 | 13, chan_update_opt));
}
let cur_height = self.best_block.read().unwrap().height() + 1;
// Theoretically, channel counterparty shouldn't send us a HTLC expiring now,
// but we want to be robust wrt to counterparty packet sanitization (see
// HTLC_FAIL_BACK_BUFFER rationale).
if msg.cltv_expiry <= cur_height + HTLC_FAIL_BACK_BUFFER as u32 { // expiry_too_soon
- break Some(("CLTV expiry is too close", 0x1000 | 14, Some(self.get_channel_update_for_unicast(chan).unwrap())));
+ break Some(("CLTV expiry is too close", 0x1000 | 14, chan_update_opt));
}
if msg.cltv_expiry > cur_height + CLTV_FAR_FAR_AWAY as u32 { // expiry_too_far
break Some(("CLTV expiry is too far in the future", 21, None));
// but there is no need to do that, and since we're a bit conservative with our
// risk threshold it just results in failing to forward payments.
if (*outgoing_cltv_value) as u64 <= (cur_height + LATENCY_GRACE_PERIOD_BLOCKS) as u64 {
- break Some(("Outgoing CLTV value is too soon", 0x1000 | 14, Some(self.get_channel_update_for_unicast(chan).unwrap())));
+ break Some(("Outgoing CLTV value is too soon", 0x1000 | 14, chan_update_opt));
}
break None;
}
// Only public for testing, this should otherwise never be called direcly
- pub(crate) fn send_payment_along_path(&self, path: &Vec<RouteHop>, pay
ee: &Option<Payee>, payment_hash: &PaymentHash, payment_secret: &Option<PaymentSecret>, total_value: u64, cur_height: u32, payment_id: PaymentId, keysend_preimage: &Option<PaymentPreimage>) -> Result<(), APIError> {
+ pub(crate) fn send_payment_along_path(&self, path: &Vec<RouteHop>, pay
ment_params: &Option<PaymentParameters>, payment_hash: &PaymentHash, payment_secret: &Option<PaymentSecret>, total_value: u64, cur_height: u32, payment_id: PaymentId, keysend_preimage: &Option<PaymentPreimage>) -> Result<(), APIError> {
log_trace!(self.logger, "Attempting to send payment for path with next hop {}", path.first().unwrap().short_channel_id);
let prng_seed = self.keys_manager.get_secure_random_bytes();
let session_priv_bytes = self.keys_manager.get_secure_random_bytes();
first_hop_htlc_msat: htlc_msat,
payment_id,
payment_secret: payment_secret.clone(),
- payee: payee.clone(),
+ payment_params: payment_params.clone(),
}, onion_packet, &self.logger),
channel_state, chan)
} {
let cur_height = self.best_block.read().unwrap().height() + 1;
let mut results = Vec::new();
for path in route.paths.iter() {
- results.push(self.send_payment_along_path(&path, &route.payee, &payment_hash, payment_secret, total_value, cur_height, payment_id, &keysend_preimage));
+ results.push(self.send_payment_along_path(&path, &route.payment_params, &payment_hash, payment_secret, total_value, cur_height, payment_id, &keysend_preimage));
}
let mut has_ok = false;
let mut has_err = false;
results,
payment_id,
failed_paths_retry: if pending_amt_unsent != 0 {
- if let Some(payee) = &route.payee {
+ if let Some(payment_params) = &route.payment_params {
Some(RouteParameters {
- payee: payee.clone(),
+ payment_params: payment_params.clone(),
final_value_msat: pending_amt_unsent,
final_cltv_expiry_delta: max_unsent_cltv_delta,
})
})
}
- fn get_announcement_sigs(&self, chan: &Channel<Signer>) -> Option<msgs::AnnouncementSignatures> {
- if !chan.should_announce() {
- log_trace!(self.logger, "Can't send announcement_signatures for private channel {}", log_bytes!(chan.channel_id()));
- return None
- }
-
- let (announcement, our_bitcoin_sig) = match chan.get_channel_announcement(self.get_our_node_id(), self.genesis_hash.clone()) {
- Ok(res) => res,
- Err(_) => return None, // Only in case of state precondition violations eg channel is closing
- };
- let msghash = hash_to_message!(&Sha256dHash::hash(&announcement.encode()[..])[..]);
- let our_node_sig = self.secp_ctx.sign(&msghash, &self.our_network_key);
-
- Some(msgs::AnnouncementSignatures {
- channel_id: chan.channel_id(),
- short_channel_id: chan.get_short_channel_id().unwrap(),
- node_signature: our_node_sig,
- bitcoin_signature: our_bitcoin_sig,
- })
- }
-
#[allow(dead_code)]
// Messages of up to 64KB should never end up more than half full with addresses, as that would
// be absurd. We ensure this by checking that at least 500 (our stated public contract on when
let mut announced_chans = false;
for (_, chan) in channel_state.by_id.iter() {
- if let Some(msg) = chan.get_signed_channel_announcement(&self.our_network_key, self.get_our_node_id(), self.genesis_hash.clone()) {
+ if let Some(msg) = chan.get_signed_channel_announcement(self.get_our_node_id(), self.genesis_hash.clone(), self.best_block.read().unwrap().height()) {
channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement {
msg,
update_msg: match self.get_channel_update_for_broadcast(chan) {
let mut new_events = Vec::new();
let mut failed_forwards = Vec::new();
+ let mut phantom_receives: Vec<(u64, OutPoint, Vec<(PendingHTLCInfo, u64)>)> = Vec::new();
let mut handle_errors = Vec::new();
{
let mut channel_state_lock = self.channel_state.lock().unwrap();
let forward_chan_id = match channel_state.short_to_id.get(&short_chan_id) {
Some(chan_id) => chan_id.clone(),
None => {
- failed_forwards.reserve(pending_forwards.len());
for forward_info in pending_forwards.drain(..) {
match forward_info {
- HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info,
- prev_funding_outpoint } => {
- let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData {
- short_channel_id: prev_short_channel_id,
- outpoint: prev_funding_outpoint,
- htlc_id: prev_htlc_id,
- incoming_packet_shared_secret: forward_info.incoming_shared_secret,
- });
- failed_forwards.push((htlc_source, forward_info.payment_hash,
- HTLCFailReason::Reason { failure_code: 0x4000 | 10, data: Vec::new() }
- ));
- },
+ HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info: PendingHTLCInfo {
+ routing, incoming_shared_secret, payment_hash, amt_to_forward, outgoing_cltv_value },
+ prev_funding_outpoint } => {
+ macro_rules! fail_forward {
+ ($msg: expr, $err_code: expr, $err_data: expr, $phantom_ss: expr) => {
+ {
+ log_info!(self.logger, "Failed to accept/forward incoming HTLC: {}", $msg);
+ let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData {
+ short_channel_id: prev_short_channel_id,
+ outpoint: prev_funding_outpoint,
+ htlc_id: prev_htlc_id,
+ incoming_packet_shared_secret: incoming_shared_secret,
+ phantom_shared_secret: $phantom_ss,
+ });
+ failed_forwards.push((htlc_source, payment_hash,
+ HTLCFailReason::Reason { failure_code: $err_code, data: $err_data }
+ ));
+ continue;
+ }
+ }
+ }
+ if let PendingHTLCRouting::Forward { onion_packet, .. } = routing {
+ let phantom_secret_res = self.keys_manager.get_node_secret(Recipient::PhantomNode);
+ if phantom_secret_res.is_ok() && fake_scid::is_valid_phantom(&self.fake_scid_rand_bytes, short_chan_id) {
+ let phantom_shared_secret = {
+ let mut arr = [0; 32];
+ arr.copy_from_slice(&SharedSecret::new(&onion_packet.public_key.unwrap(), &phantom_secret_res.unwrap())[..]);
+ arr
+ };
+ let next_hop = match onion_utils::decode_next_hop(phantom_shared_secret, &onion_packet.hop_data, onion_packet.hmac, payment_hash) {
+ Ok(res) => res,
+ Err(onion_utils::OnionDecodeErr::Malformed { err_msg, err_code }) => {
+ let sha256_of_onion = Sha256::hash(&onion_packet.hop_data).into_inner();
+ // In this scenario, the phantom would have sent us an
+ // `update_fail_malformed_htlc`, meaning here we encrypt the error as
+ // if it came from us (the second-to-last hop) but contains the sha256
+ // of the onion.
+ fail_forward!(err_msg, err_code, sha256_of_onion.to_vec(), None);
+ },
+ Err(onion_utils::OnionDecodeErr::Relay { err_msg, err_code }) => {
+ fail_forward!(err_msg, err_code, Vec::new(), Some(phantom_shared_secret));
+ },
+ };
+ match next_hop {
+ onion_utils::Hop::Receive(hop_data) => {
+ match self.construct_recv_pending_htlc_info(hop_data, incoming_shared_secret, payment_hash, amt_to_forward, outgoing_cltv_value, Some(phantom_shared_secret)) {
+ Ok(info) => phantom_receives.push((prev_short_channel_id, prev_funding_outpoint, vec![(info, prev_htlc_id)])),
+ Err(ReceiveError { err_code, err_data, msg }) => fail_forward!(msg, err_code, err_data, Some(phantom_shared_secret))
+ }
+ },
+ _ => panic!(),
+ }
+ } else {
+ fail_forward!(format!("Unknown short channel id {} for forward HTLC", short_chan_id), 0x4000 | 10, Vec::new(), None);
+ }
+ } else {
+ fail_forward!(format!("Unknown short channel id {} for forward HTLC", short_chan_id), 0x4000 | 10, Vec::new(), None);
+ }
+ },
HTLCForwardInfo::FailHTLC { .. } => {
// Channel went away before we could fail it. This implies
// the channel is now on chain and our counterparty is
outpoint: prev_funding_outpoint,
htlc_id: prev_htlc_id,
incoming_packet_shared_secret: incoming_shared_secret,
+ // Phantom payments are only PendingHTLCRouting::Receive.
+ phantom_shared_secret: None,
});
match chan.get_mut().send_htlc(amt_to_forward, payment_hash, outgoing_cltv_value, htlc_source.clone(), onion_packet, &self.logger) {
Err(e) => {
HTLCForwardInfo::AddHTLC { prev_short_channel_id, prev_htlc_id, forward_info: PendingHTLCInfo {
routing, incoming_shared_secret, payment_hash, amt_to_forward, .. },
prev_funding_outpoint } => {
- let (cltv_expiry, onion_payload) = match routing {
- PendingHTLCRouting::Receive { payment_data, incoming_cltv_expiry } =>
- (incoming_cltv_expiry, OnionPayload::Invoice(payment_data)),
+ let (cltv_expiry, onion_payload, phantom_shared_secret) = match routing {
+ PendingHTLCRouting::Receive { payment_data, incoming_cltv_expiry, phantom_shared_secret } =>
+ (incoming_cltv_expiry, OnionPayload::Invoice(payment_data), phantom_shared_secret),
PendingHTLCRouting::ReceiveKeysend { payment_preimage, incoming_cltv_expiry } =>
- (incoming_cltv_expiry, OnionPayload::Spontaneous(payment_preimage)),
+ (incoming_cltv_expiry, OnionPayload::Spontaneous(payment_preimage), None),
_ => {
panic!("short_channel_id == 0 should imply any pending_forward entries are of type Receive");
}
outpoint: prev_funding_outpoint,
htlc_id: prev_htlc_id,
incoming_packet_shared_secret: incoming_shared_secret,
+ phantom_shared_secret,
},
value: amt_to_forward,
cltv_expiry,
outpoint: prev_funding_outpoint,
htlc_id: $htlc.prev_hop.htlc_id,
incoming_packet_shared_secret: $htlc.prev_hop.incoming_packet_shared_secret,
+ phantom_shared_secret,
}), payment_hash,
HTLCFailReason::Reason { failure_code: 0x4000 | 15, data: htlc_msat_height_data }
));
macro_rules! check_total_value {
($payment_data_total_msat: expr, $payment_secret: expr, $payment_preimage: expr) => {{
- let mut total_value = 0;
let mut payment_received_generated = false;
let htlcs = channel_state.claimable_htlcs.entry(payment_hash)
.or_insert(Vec::new());
continue
}
}
- htlcs.push(claimable_htlc);
+ let mut total_value = claimable_htlc.value;
for htlc in htlcs.iter() {
total_value += htlc.value;
match &htlc.onion_payload {
if total_value >= msgs::MAX_VALUE_MSAT || total_value > $payment_data_total_msat {
log_trace!(self.logger, "Failing HTLCs with payment_hash {} as the total value {} ran over expected value {} (or HTLCs were inconsistent)",
log_bytes!(payment_hash.0), total_value, $payment_data_total_msat);
- for htlc in htlcs.iter() {
- fail_htlc!(htlc);
- }
+ fail_htlc!(claimable_htlc);
} else if total_value == $payment_data_total_msat {
+ htlcs.push(claimable_htlc);
new_events.push(events::Event::PaymentReceived {
payment_hash,
purpose: events::PaymentPurpose::InvoicePayment {
// Nothing to do - we haven't reached the total
// payment value yet, wait until we receive more
// MPP parts.
+ htlcs.push(claimable_htlc);
}
payment_received_generated
}}
for (htlc_source, payment_hash, failure_reason) in failed_forwards.drain(..) {
self.fail_htlc_backwards_internal(self.channel_state.lock().unwrap(), htlc_source, &payment_hash, failure_reason);
}
+ self.forward_htlcs(&mut phantom_receives);
for (counterparty_node_id, err) in handle_errors.drain(..) {
let _ = handle_error!(self, err, counterparty_node_id);
self.fail_htlc_backwards_internal(channel_state,
htlc_src, &payment_hash, HTLCFailReason::Reason { failure_code, data: onion_failure_data});
},
- HTLCSource::OutboundRoute { session_priv, payment_id, path, payee, .. } => {
+ HTLCSource::OutboundRoute { session_priv, payment_id, path, payment_params, .. } => {
let mut session_priv_bytes = [0; 32];
session_priv_bytes.copy_from_slice(&session_priv[..]);
let mut outbounds = self.pending_outbound_payments.lock().unwrap();
if let hash_map::Entry::Occupied(mut payment) = outbounds.entry(payment_id) {
if payment.get_mut().remove(&session_priv_bytes, Some(&path)) && !payment.get().is_fulfilled() {
- let retry = if let Some(payee_data) = payee {
+ let retry = if let Some(payment_params_data) = payment_params {
let path_last_hop = path.last().expect("Outbound payments must have had a valid path");
Some(RouteParameters {
- payee: payee_data,
+ payment_params: payment_params_data,
final_value_msat: path_last_hop.fee_msat,
final_cltv_expiry_delta: path_last_hop.cltv_expiry_delta,
})
// from block_connected which may run during initialization prior to the chain_monitor
// being fully configured. See the docs for `ChannelManagerReadArgs` for more.
match source {
- HTLCSource::OutboundRoute { ref path, session_priv, payment_id, ref payee, .. } => {
+ HTLCSource::OutboundRoute { ref path, session_priv, payment_id, ref payment_params, .. } => {
let mut session_priv_bytes = [0; 32];
session_priv_bytes.copy_from_slice(&session_priv[..]);
let mut outbounds = self.pending_outbound_payments.lock().unwrap();
return;
}
mem::drop(channel_state_lock);
- let retry = if let Some(payee_data) = payee {
+ let retry = if let Some(payment_params_data) = payment_params {
let path_last_hop = path.last().expect("Outbound payments must have had a valid path");
Some(RouteParameters {
- payee: payee_data.clone(),
+ payment_params: payment_params_data.clone(),
final_value_msat: path_last_hop.fee_msat,
final_cltv_expiry_delta: path_last_hop.cltv_expiry_delta,
})
pending_events.push(path_failure);
if let Some(ev) = full_failure_ev { pending_events.push(ev); }
},
- HTLCSource::PreviousHopData(HTLCPreviousHopData { short_channel_id, htlc_id, incoming_packet_shared_secret, .. }) => {
+ HTLCSource::PreviousHopData(HTLCPreviousHopData { short_channel_id, htlc_id, incoming_packet_shared_secret, phantom_shared_secret, .. }) => {
let err_packet = match onion_error {
HTLCFailReason::Reason { failure_code, data } => {
log_trace!(self.logger, "Failing HTLC with payment_hash {} backwards from us with code {}", log_bytes!(payment_hash.0), failure_code);
- let packet = onion_utils::build_failure_packet(&incoming_packet_shared_secret, failure_code, &data[..]).encode();
- onion_utils::encrypt_failure_packet(&incoming_packet_shared_secret, &packet)
+ if let Some(phantom_ss) = phantom_shared_secret {
+ let phantom_packet = onion_utils::build_failure_packet(&phantom_ss, failure_code, &data[..]).encode();
+ let encrypted_phantom_packet = onion_utils::encrypt_failure_packet(&phantom_ss, &phantom_packet);
+ onion_utils::encrypt_failure_packet(&incoming_packet_shared_secret, &encrypted_phantom_packet.data[..])
+ } else {
+ let packet = onion_utils::build_failure_packet(&incoming_packet_shared_secret, failure_code, &data[..]).encode();
+ onion_utils::encrypt_failure_packet(&incoming_packet_shared_secret, &packet)
+ }
},
HTLCFailReason::LightningError { err } => {
log_trace!(self.logger, "Failing HTLC with payment_hash {} backwards with pre-built LightningError", log_bytes!(payment_hash.0));
}
fn finalize_claims(&self, mut sources: Vec<HTLCSource>) {
+ let mut outbounds = self.pending_outbound_payments.lock().unwrap();
let mut pending_events = self.pending_events.lock().unwrap();
for source in sources.drain(..) {
if let HTLCSource::OutboundRoute { session_priv, payment_id, path, .. } = source {
let mut session_priv_bytes = [0; 32];
session_priv_bytes.copy_from_slice(&session_priv[..]);
- let mut outbounds = self.pending_outbound_payments.lock().unwrap();
if let hash_map::Entry::Occupied(mut payment) = outbounds.entry(payment_id) {
assert!(payment.get().is_fulfilled());
if payment.get_mut().remove(&session_priv_bytes, None) {
return;
}
- let updates = channel.get_mut().monitor_updating_restored(&self.logger);
- let channel_update = if updates.funding_locked.is_some() && channel.get().is_usable() && !channel.get().should_announce() {
+ let updates = channel.get_mut().monitor_updating_restored(&self.logger, self.get_our_node_id(), self.genesis_hash, self.best_block.read().unwrap().height());
+ let channel_update = if updates.funding_locked.is_some() && channel.get().is_usable() {
// We only send a channel_update in the case where we are just now sending a
- // funding_locked and the channel is in a usable state. Further, we rely on the
- // normal announcement_signatures process to send a channel_update for public
- // channels, only generating a unicast channel_update if this is a private channel.
+ // funding_locked and the channel is in a usable state. We may re-send a
+ // channel_update later through the announcement_signatures process for public
+ // channels, but there's no reason not to just inform our counterparty of our fees
+ // now.
Some(events::MessageSendEvent::SendChannelUpdate {
node_id: channel.get().get_counterparty_node_id(),
msg: self.get_channel_update_for_unicast(channel.get()).unwrap(),
})
} else { None };
- chan_restoration_res = handle_chan_restoration_locked!(self, channel_lock, channel_state, channel, updates.raa, updates.commitment_update, updates.order, None, updates.accepted_htlcs, updates.funding_broadcastable, updates.funding_locked);
+ chan_restoration_res = handle_chan_restoration_locked!(self, channel_lock, channel_state, channel, updates.raa, updates.commitment_update, updates.order, None, updates.accepted_htlcs, updates.funding_broadcastable, updates.funding_locked, updates.announcement_sigs);
if let Some(upd) = channel_update {
channel_state.pending_msg_events.push(upd);
}
}
}
+ /// Called to accept a request to open a channel after [`Event::OpenChannelRequest`] has been
+ /// triggered.
+ ///
+ /// The `temporary_channel_id` parameter indicates which inbound channel should be accepted.
+ ///
+ /// [`Event::OpenChannelRequest`]: crate::util::events::Event::OpenChannelRequest
+ pub fn accept_inbound_channel(&self, temporary_channel_id: &[u8; 32]) -> Result<(), APIError> {
+ let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
+
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = &mut *channel_state_lock;
+ match channel_state.by_id.entry(temporary_channel_id.clone()) {
+ hash_map::Entry::Occupied(mut channel) => {
+ if !channel.get().inbound_is_awaiting_accept() {
+ return Err(APIError::APIMisuseError { err: "The channel isn't currently awaiting to be accepted.".to_owned() });
+ }
+ channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel {
+ node_id: channel.get().get_counterparty_node_id(),
+ msg: channel.get_mut().accept_inbound_channel(),
+ });
+ }
+ hash_map::Entry::Vacant(_) => {
+ return Err(APIError::ChannelUnavailable { err: "Can't accept a channel that doesn't exist".to_owned() });
+ }
+ }
+ Ok(())
+ }
+
fn internal_open_channel(&self, counterparty_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel) -> Result<(), MsgHandleErrInternal> {
if msg.chain_hash != self.genesis_hash {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Unknown genesis block hash".to_owned(), msg.temporary_channel_id.clone()));
return Err(MsgHandleErrInternal::send_err_msg_no_close("No inbound channels accepted".to_owned(), msg.temporary_channel_id.clone()));
}
- let channel = Channel::new_from_req(&self.fee_estimator, &self.keys_manager, counterparty_node_id.clone(),
+ let mut channel = Channel::new_from_req(&self.fee_estimator, &self.keys_manager, counterparty_node_id.clone(),
&their_features, msg, 0, &self.default_configuration, self.best_block.read().unwrap().height(), &self.logger)
.map_err(|e| MsgHandleErrInternal::from_chan_no_close(e, msg.temporary_channel_id))?;
let mut channel_state_lock = self.channel_state.lock().unwrap();
match channel_state.by_id.entry(channel.channel_id()) {
hash_map::Entry::Occupied(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("temporary_channel_id collision!".to_owned(), msg.temporary_channel_id.clone())),
hash_map::Entry::Vacant(entry) => {
- channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel {
- node_id: counterparty_node_id.clone(),
- msg: channel.get_accept_channel(),
- });
+ if !self.default_configuration.manually_accept_inbound_channels {
+ channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel {
+ node_id: counterparty_node_id.clone(),
+ msg: channel.accept_inbound_channel(),
+ });
+ } else {
+ let mut pending_events = self.pending_events.lock().unwrap();
+ pending_events.push(
+ events::Event::OpenChannelRequest {
+ temporary_channel_id: msg.temporary_channel_id.clone(),
+ counterparty_node_id: counterparty_node_id.clone(),
+ funding_satoshis: msg.funding_satoshis,
+ push_msat: msg.push_msat,
+ }
+ );
+ }
+
entry.insert(channel);
}
}
if chan.get().get_counterparty_node_id() != *counterparty_node_id {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.temporary_channel_id));
}
- try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration, &their_features), channel_state, chan);
+ try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration.peer_channel_config_limits, &their_features), channel_state, chan);
(chan.get().get_value_satoshis(), chan.get().get_funding_redeemscript().to_v0_p2wsh(), chan.get().get_user_id())
},
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.temporary_channel_id))
if chan.get().get_counterparty_node_id() != *counterparty_node_id {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id));
}
- try_chan_entry!(self, chan.get_mut().funding_locked(&msg, &self.logger), channel_state, chan);
- if let Some(announcement_sigs) = self.get_announcement_sigs(chan.get()) {
- log_trace!(self.logger, "Sending announcement_signatures for {} in response to funding_locked", log_bytes!(chan.get().channel_id()));
- // If we see locking block before receiving remote funding_locked, we broadcast our
- // announcement_sigs at remote funding_locked reception. If we receive remote
- // funding_locked before seeing locking block, we broadcast our announcement_sigs at locking
- // block connection. We should guanrantee to broadcast announcement_sigs to our peer whatever
- // the order of the events but our peer may not receive it due to disconnection. The specs
- // lacking an acknowledgement for announcement_sigs we may have to re-send them at peer
- // connection in the future if simultaneous misses by both peers due to network/hardware
- // failures is an issue. Note, to achieve its goal, only one of the announcement_sigs needs
- // to be received, from then sigs are going to be flood to the whole network.
+ let announcement_sigs_opt = try_chan_entry!(self, chan.get_mut().funding_locked(&msg, self.get_our_node_id(),
+ self.genesis_hash.clone(), &self.best_block.read().unwrap(), &self.logger), channel_state, chan);
+ if let Some(announcement_sigs) = announcement_sigs_opt {
+ log_trace!(self.logger, "Sending announcement_signatures for channel {}", log_bytes!(chan.get().channel_id()));
channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
node_id: counterparty_node_id.clone(),
msg: announcement_sigs,
});
} else if chan.get().is_usable() {
+ // If we're sending an announcement_signatures, we'll send the (public)
+ // channel_update after sending a channel_announcement when we receive our
+ // counterparty's announcement_signatures. Thus, we only bother to send a
+ // channel_update here if the channel is not public, i.e. we're not sending an
+ // announcement_signatures.
+ log_trace!(self.logger, "Sending private initial channel_update for our counterparty on channel {}", log_bytes!(chan.get().channel_id()));
channel_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate {
node_id: counterparty_node_id.clone(),
msg: self.get_channel_update_for_unicast(chan.get()).unwrap(),
onion_utils::build_first_hop_failure_packet(incoming_shared_secret, error_code, &{
let mut res = Vec::with_capacity(8 + 128);
// TODO: underspecified, follow https://github.com/lightningnetwork/lightning-rfc/issues/791
- res.extend_from_slice(&byte_utils::be16_to_array(0));
+ if error_code == 0x1000 | 20 {
+ res.extend_from_slice(&byte_utils::be16_to_array(0));
+ }
res.extend_from_slice(&upd.encode_with_len()[..]);
res
}[..])
}
channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement {
- msg: try_chan_entry!(self, chan.get_mut().announcement_signatures(&self.our_network_key, self.get_our_node_id(), self.genesis_hash.clone(), msg), channel_state, chan),
+ msg: try_chan_entry!(self, chan.get_mut().announcement_signatures(
+ self.get_our_node_id(), self.genesis_hash.clone(), self.best_block.read().unwrap().height(), msg), channel_state, chan),
// Note that announcement_signatures fails if the channel cannot be announced,
// so get_channel_update_for_broadcast will never fail by the time we get here.
update_msg: self.get_channel_update_for_broadcast(chan.get()).unwrap(),
// disconnect, so Channel's reestablish will never hand us any holding cell
// freed HTLCs to fail backwards. If in the future we no longer drop pending
// add-HTLCs on disconnect, we may be handed HTLCs to fail backwards here.
- let (funding_locked, revoke_and_ack, commitment_update, monitor_update_opt, order, htlcs_failed_forward, shutdown) =
- try_chan_entry!(self, chan.get_mut().channel_reestablish(msg, &self.logger), channel_state, chan);
+ let responses = try_chan_entry!(self, chan.get_mut().channel_reestablish(
+ msg, &self.logger, self.our_network_pubkey.clone(), self.genesis_hash,
+ &*self.best_block.read().unwrap()), channel_state, chan);
let mut channel_update = None;
- if let Some(msg) = shutdown {
+ if let Some(msg) = responses.shutdown_msg {
channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
node_id: counterparty_node_id.clone(),
msg,
});
}
let need_lnd_workaround = chan.get_mut().workaround_lnd_bug_4006.take();
- chan_restoration_res = handle_chan_restoration_locked!(self, channel_state_lock, channel_state, chan, revoke_and_ack, commitment_update, order, monitor_update_opt, Vec::new(), None, funding_locked);
+ chan_restoration_res = handle_chan_restoration_locked!(
+ self, channel_state_lock, channel_state, chan, responses.raa, responses.commitment_update, responses.order,
+ responses.mon_update, Vec::new(), None, responses.funding_locked, responses.announcement_sigs);
if let Some(upd) = channel_update {
channel_state.pending_msg_events.push(upd);
}
- (htlcs_failed_forward, need_lnd_workaround)
+ (responses.holding_cell_failed_htlcs, need_lnd_workaround)
},
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id))
}
/// In chanmon_consistency_target, we'd like to be able to restore monitor updating without
/// handling all pending events (i.e. not PendingHTLCsForwardable). Thus, we expose monitor
/// update events as a separate process method here.
- #[cfg(feature = "fuzztarget")]
+ #[cfg(fuzzing)]
pub fn process_monitor_events(&self) {
self.process_pending_monitor_events();
}
inbound_payment::get_payment_preimage(payment_hash, payment_secret, &self.inbound_payment_key)
}
- #[cfg(any(test, feature = "fuzztarget", feature = "_test_utils"))]
+ /// Gets a fake short channel id for use in receiving [phantom node payments]. These fake scids
+ /// are used when constructing the phantom invoice's route hints.
+ ///
+ /// [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
+ pub fn get_phantom_scid(&self) -> u64 {
+ let mut channel_state = self.channel_state.lock().unwrap();
+ let best_block = self.best_block.read().unwrap();
+ loop {
+ let scid_candidate = fake_scid::get_phantom_scid(&self.fake_scid_rand_bytes, best_block.height(), &self.genesis_hash, &self.keys_manager);
+ // Ensure the generated scid doesn't conflict with a real channel.
+ match channel_state.short_to_id.entry(scid_candidate) {
+ hash_map::Entry::Occupied(_) => continue,
+ hash_map::Entry::Vacant(_) => return scid_candidate
+ }
+ }
+ }
+
+ /// Gets route hints for use in receiving [phantom node payments].
+ ///
+ /// [phantom node payments]: crate::chain::keysinterface::PhantomKeysManager
+ pub fn get_phantom_route_hints(&self) -> PhantomRouteHints {
+ PhantomRouteHints {
+ channels: self.list_usable_channels(),
+ phantom_scid: self.get_phantom_scid(),
+ real_node_pubkey: self.get_our_node_id(),
+ }
+ }
+
+ #[cfg(any(test, fuzzing, feature = "_test_utils"))]
pub fn get_and_clear_pending_events(&self) -> Vec<events::Event> {
let events = core::cell::RefCell::new(Vec::new());
let event_handler = |event: &events::Event| events.borrow_mut().push(event.clone());
*best_block = BestBlock::new(header.prev_blockhash, new_height)
}
- self.do_chain_event(Some(new_height), |channel| channel.best_block_updated(new_height, header.time, &self.logger));
+ self.do_chain_event(Some(new_height), |channel| channel.best_block_updated(new_height, header.time, self.genesis_hash.clone(), self.get_our_node_id(), &self.logger));
}
}
log_trace!(self.logger, "{} transactions included in block {} at height {} provided", txdata.len(), block_hash, height);
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
- self.do_chain_event(Some(height), |channel| channel.transactions_confirmed(&block_hash, height, txdata, &self.logger).map(|a| (a, Vec::new())));
+ self.do_chain_event(Some(height), |channel| channel.transactions_confirmed(&block_hash, height, txdata, self.genesis_hash.clone(), self.get_our_node_id(), &self.logger)
+ .map(|(a, b)| (a, Vec::new(), b)));
}
fn best_block_updated(&self, header: &BlockHeader, height: u32) {
*self.best_block.write().unwrap() = BestBlock::new(block_hash, height);
- self.do_chain_event(Some(height), |channel| channel.best_block_updated(height, header.time, &self.logger));
+ self.do_chain_event(Some(height), |channel| channel.best_block_updated(height, header.time, self.genesis_hash.clone(), self.get_our_node_id(), &self.logger));
macro_rules! max_time {
($timestamp: expr) => {
inbound_payment.expiry_time > header.time as u64
});
- let mut pending_events = self.pending_events.lock().unwrap();
let mut outbounds = self.pending_outbound_payments.lock().unwrap();
+ let mut pending_events = self.pending_events.lock().unwrap();
outbounds.retain(|payment_id, payment| {
if payment.remaining_parts() != 0 { return true }
if let PendingOutboundPayment::Retryable { starting_block_height, payment_hash, .. } = payment {
self.do_chain_event(None, |channel| {
if let Some(funding_txo) = channel.get_funding_txo() {
if funding_txo.txid == *txid {
- channel.funding_transaction_unconfirmed(&self.logger).map(|_| (None, Vec::new()))
- } else { Ok((None, Vec::new())) }
- } else { Ok((None, Vec::new())) }
+ channel.funding_transaction_unconfirmed(&self.logger).map(|()| (None, Vec::new(), None))
+ } else { Ok((None, Vec::new(), None)) }
+ } else { Ok((None, Vec::new(), None)) }
});
}
}
/// Calls a function which handles an on-chain event (blocks dis/connected, transactions
/// un/confirmed, etc) on each channel, handling any resulting errors or messages generated by
/// the function.
- fn do_chain_event<FN: Fn(&mut Channel<Signer>) -> Result<(Option<msgs::FundingLocked>, Vec<(HTLCSource, PaymentHash)>), ClosureReason>>
+ fn do_chain_event<FN: Fn(&mut Channel<Signer>) -> Result<(Option<msgs::FundingLocked>, Vec<(HTLCSource, PaymentHash)>, Option<msgs::AnnouncementSignatures>), ClosureReason>>
(&self, height_opt: Option<u32>, f: FN) {
// Note that we MUST NOT end up calling methods on self.chain_monitor here - we're called
// during initialization prior to the chain_monitor being fully configured in some cases.
let pending_msg_events = &mut channel_state.pending_msg_events;
channel_state.by_id.retain(|_, channel| {
let res = f(channel);
- if let Ok((chan_res, mut timed_out_pending_htlcs)) = res {
+ if let Ok((funding_locked_opt, mut timed_out_pending_htlcs, announcement_sigs)) = res {
for (source, payment_hash) in timed_out_pending_htlcs.drain(..) {
let chan_update = self.get_channel_update_for_unicast(&channel).map(|u| u.encode_with_len()).unwrap(); // Cannot add/recv HTLCs before we have a short_id so unwrap is safe
timed_out_htlcs.push((source, payment_hash, HTLCFailReason::Reason {
data: chan_update,
}));
}
- if let Some(funding_locked) = chan_res {
+ if let Some(funding_locked) = funding_locked_opt {
pending_msg_events.push(events::MessageSendEvent::SendFundingLocked {
node_id: channel.get_counterparty_node_id(),
msg: funding_locked,
});
- if let Some(announcement_sigs) = self.get_announcement_sigs(channel) {
- log_trace!(self.logger, "Sending funding_locked and announcement_signatures for {}", log_bytes!(channel.channel_id()));
- pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
- node_id: channel.get_counterparty_node_id(),
- msg: announcement_sigs,
- });
- } else if channel.is_usable() {
- log_trace!(self.logger, "Sending funding_locked WITHOUT announcement_signatures but with private channel_update for our counterparty on channel {}", log_bytes!(channel.channel_id()));
+ if channel.is_usable() {
+ log_trace!(self.logger, "Sending funding_locked with private initial channel_update for our counterparty on channel {}", log_bytes!(channel.channel_id()));
pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate {
node_id: channel.get_counterparty_node_id(),
msg: self.get_channel_update_for_unicast(channel).unwrap(),
});
} else {
- log_trace!(self.logger, "Sending funding_locked WITHOUT announcement_signatures for {}", log_bytes!(channel.channel_id()));
+ log_trace!(self.logger, "Sending funding_locked WITHOUT channel_update for {}", log_bytes!(channel.channel_id()));
}
short_to_id.insert(channel.get_short_channel_id().unwrap(), channel.channel_id());
}
+ if let Some(announcement_sigs) = announcement_sigs {
+ log_trace!(self.logger, "Sending announcement_signatures for channel {}", log_bytes!(channel.channel_id()));
+ pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
+ node_id: channel.get_counterparty_node_id(),
+ msg: announcement_sigs,
+ });
+ if let Some(height) = height_opt {
+ if let Some(announcement) = channel.get_signed_channel_announcement(self.get_our_node_id(), self.genesis_hash, height) {
+ pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement {
+ msg: announcement,
+ // Note that announcement_signatures fails if the channel cannot be announced,
+ // so get_channel_update_for_broadcast will never fail by the time we get here.
+ update_msg: self.get_channel_update_for_broadcast(channel).unwrap(),
+ });
+ }
+ }
+ }
} else if let Err(reason) = res {
if let Some(short_id) = channel.get_short_channel_id() {
short_to_id.remove(&short_id);
const SERIALIZATION_VERSION: u8 = 1;
const MIN_SERIALIZATION_VERSION: u8 = 1;
+impl_writeable_tlv_based!(CounterpartyForwardingInfo, {
+ (2, fee_base_msat, required),
+ (4, fee_proportional_millionths, required),
+ (6, cltv_expiry_delta, required),
+});
+
+impl_writeable_tlv_based!(ChannelCounterparty, {
+ (2, node_id, required),
+ (4, features, required),
+ (6, unspendable_punishment_reserve, required),
+ (8, forwarding_info, option),
+});
+
+impl_writeable_tlv_based!(ChannelDetails, {
+ (2, channel_id, required),
+ (4, counterparty, required),
+ (6, funding_txo, option),
+ (8, short_channel_id, option),
+ (10, channel_value_satoshis, required),
+ (12, unspendable_punishment_reserve, option),
+ (14, user_channel_id, required),
+ (16, balance_msat, required),
+ (18, outbound_capacity_msat, required),
+ (20, inbound_capacity_msat, required),
+ (22, confirmations_required, option),
+ (24, force_close_spend_delay, option),
+ (26, is_outbound, required),
+ (28, is_funding_locked, required),
+ (30, is_usable, required),
+ (32, is_public, required),
+});
+
+impl_writeable_tlv_based!(PhantomRouteHints, {
+ (2, channels, vec_type),
+ (4, phantom_scid, required),
+ (6, real_node_pubkey, required),
+});
+
impl_writeable_tlv_based_enum!(PendingHTLCRouting,
(0, Forward) => {
(0, onion_packet, required),
},
(1, Receive) => {
(0, payment_data, required),
+ (1, phantom_shared_secret, option),
(2, incoming_cltv_expiry, required),
},
(2, ReceiveKeysend) => {
impl_writeable_tlv_based!(HTLCPreviousHopData, {
(0, short_channel_id, required),
+ (1, phantom_shared_secret, option),
(2, outpoint, required),
(4, htlc_id, required),
(6, incoming_packet_shared_secret, required)
let mut path = Some(Vec::new());
let mut payment_id = None;
let mut payment_secret = None;
- let mut payee = None;
+ let mut payment_params = None;
read_tlv_fields!(reader, {
(0, session_priv, required),
(1, payment_id, option),
(2, first_hop_htlc_msat, required),
(3, payment_secret, option),
(4, path, vec_type),
- (5, payee, option),
+ (5, payment_params, option),
});
if payment_id.is_none() {
// For backwards compat, if there was no payment_id written, use the session_priv bytes
path: path.unwrap(),
payment_id: payment_id.unwrap(),
payment_secret,
- payee,
+ payment_params,
})
}
1 => Ok(HTLCSource::PreviousHopData(Readable::read(reader)?)),
impl Writeable for HTLCSource {
fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::io::Error> {
match self {
- HTLCSource::OutboundRoute { ref session_priv, ref first_hop_htlc_msat, ref path, payment_id, payment_secret, payee } => {
+ HTLCSource::OutboundRoute { ref session_priv, ref first_hop_htlc_msat, ref path, payment_id, payment_secret, payment_params } => {
0u8.write(writer)?;
let payment_id_opt = Some(payment_id);
write_tlv_fields!(writer, {
(2, first_hop_htlc_msat, required),
(3, payment_secret, option),
(4, path, vec_type),
- (5, payee, option),
+ (5, payment_params, option),
});
}
HTLCSource::PreviousHopData(ref field) => {
peer_state.latest_features.write(writer)?;
}
+ let pending_inbound_payments = self.pending_inbound_payments.lock().unwrap();
+ let pending_outbound_payments = self.pending_outbound_payments.lock().unwrap();
let events = self.pending_events.lock().unwrap();
(events.len() as u64).write(writer)?;
for event in events.iter() {
(self.last_node_announcement_serial.load(Ordering::Acquire) as u32).write(writer)?;
(self.highest_seen_timestamp.load(Ordering::Acquire) as u32).write(writer)?;
- let pending_inbound_payments = self.pending_inbound_payments.lock().unwrap();
(pending_inbound_payments.len() as u64).write(writer)?;
for (hash, pending_payment) in pending_inbound_payments.iter() {
hash.write(writer)?;
pending_payment.write(writer)?;
}
- let pending_outbound_payments = self.pending_outbound_payments.lock().unwrap();
// For backwards compat, write the session privs and their total length.
let mut num_pending_outbounds_compat: u64 = 0;
for (_, outbound) in pending_outbound_payments.iter() {
write_tlv_fields!(writer, {
(1, pending_outbound_payments_no_retry, required),
(3, pending_outbound_payments, required),
+ (5, self.our_network_pubkey, required),
+ (7, self.fake_scid_rand_bytes, required),
});
Ok(())
log_error!(args.logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
log_error!(args.logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
log_error!(args.logger, " Without the latest ChannelMonitor we cannot continue without risking funds.");
- log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/rust-bitcoin/rust-lightning");
+ log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
return Err(DecodeError::InvalidValue);
} else if channel.get_cur_holder_commitment_transaction_number() > monitor.get_cur_holder_commitment_number() ||
channel.get_revoked_counterparty_commitment_transaction_number() > monitor.get_min_seen_secret() ||
log_error!(args.logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
log_error!(args.logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
log_error!(args.logger, " Without the ChannelMonitor we cannot continue without risking funds.");
- log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/rust-bitcoin/rust-lightning");
+ log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
return Err(DecodeError::InvalidValue);
}
}
// pending_outbound_payments_no_retry is for compatibility with 0.0.101 clients.
let mut pending_outbound_payments_no_retry: Option<HashMap<PaymentId, HashSet<[u8; 32]>>> = None;
let mut pending_outbound_payments = None;
+ let mut received_network_pubkey: Option<PublicKey> = None;
+ let mut fake_scid_rand_bytes: Option<[u8; 32]> = None;
read_tlv_fields!(reader, {
(1, pending_outbound_payments_no_retry, option),
(3, pending_outbound_payments, option),
+ (5, received_network_pubkey, option),
+ (7, fake_scid_rand_bytes, option),
});
+ if fake_scid_rand_bytes.is_none() {
+ fake_scid_rand_bytes = Some(args.keys_manager.get_secure_random_bytes());
+ }
+
if pending_outbound_payments.is_none() && pending_outbound_payments_no_retry.is_none() {
pending_outbound_payments = Some(pending_outbound_payments_compat);
} else if pending_outbound_payments.is_none() {
pending_events_read.append(&mut channel_closures);
}
+ let our_network_key = match args.keys_manager.get_node_secret(Recipient::Node) {
+ Ok(key) => key,
+ Err(()) => return Err(DecodeError::InvalidValue)
+ };
+ let our_network_pubkey = PublicKey::from_secret_key(&secp_ctx, &our_network_key);
+ if let Some(network_pubkey) = received_network_pubkey {
+ if network_pubkey != our_network_pubkey {
+ log_error!(args.logger, "Key that was generated does not match the existing key.");
+ return Err(DecodeError::InvalidValue);
+ }
+ }
+
let inbound_pmt_key_material = args.keys_manager.get_inbound_payment_key_material();
let expanded_inbound_key = inbound_payment::ExpandedKey::new(&inbound_pmt_key_material);
let channel_manager = ChannelManager {
inbound_payment_key: expanded_inbound_key,
pending_inbound_payments: Mutex::new(pending_inbound_payments),
pending_outbound_payments: Mutex::new(pending_outbound_payments.unwrap()),
+ fake_scid_rand_bytes: fake_scid_rand_bytes.unwrap(),
- our_network_key: args.keys_manager.get_node_secret(),
- our_network_pubkey: PublicKey::from_secret_key(&secp_ctx, &args.keys_manager.get_node_secret()),
+ our_network_key,
+ our_network_pubkey,
secp_ctx,
last_node_announcement_serial: AtomicUsize::new(last_node_announcement_serial as usize),
use ln::functional_test_utils::*;
use ln::msgs;
use ln::msgs::ChannelMessageHandler;
- use routing::router::{Payee, RouteParameters, find_route};
+ use routing::router::{PaymentParameters, RouteParameters, find_route};
use util::errors::APIError;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
use util::test_utils;
// Use the utility function send_payment_along_path to send the payment with MPP data which
// indicates there are more HTLCs coming.
let cur_height = CHAN_CONFIRM_DEPTH + 1; // route_payment calls send_payment, which adds 1 to the current height. So we do the same here to match.
- nodes[0].node.send_payment_along_path(&route.paths[0], &route.payee, &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None).unwrap();
+ nodes[0].node.send_payment_along_path(&route.paths[0], &route.payment_params, &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None).unwrap();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
expect_payment_failed!(nodes[0], our_payment_hash, true);
// Send the second half of the original MPP payment.
- nodes[0].node.send_payment_along_path(&route.paths[0], &route.payee, &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None).unwrap();
+ nodes[0].node.send_payment_along_path(&route.paths[0], &route.payment_params, &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None).unwrap();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]);
let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
- let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
// To start (1), send a regular payment but don't claim it.
let expected_route = [&nodes[1]];
let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &expected_route, 100_000);
// Next, attempt a keysend payment and make sure it fails.
- let params = RouteParameters {
- payee: Payee::for_keysend(expected_route.last().unwrap().node.get_our_node_id()),
+ let route_params = RouteParameters {
+ payment_params: PaymentParameters::for_keysend(expected_route.last().unwrap().node.get_our_node_id()),
final_value_msat: 100_000,
final_cltv_expiry_delta: TEST_FINAL_CLTV,
};
let route = find_route(
- &nodes[0].node.get_our_node_id(), ¶ms, nodes[0].network_graph, None,
+ &nodes[0].node.get_our_node_id(), &route_params, nodes[0].network_graph, None,
nodes[0].logger, &scorer
).unwrap();
nodes[0].node.send_spontaneous_payment(&route, Some(payment_preimage)).unwrap();
// To start (2), send a keysend payment but don't claim it.
let payment_preimage = PaymentPreimage([42; 32]);
let route = find_route(
- &nodes[0].node.get_our_node_id(), ¶ms, nodes[0].network_graph, None,
+ &nodes[0].node.get_our_node_id(), &route_params, nodes[0].network_graph, None,
nodes[0].logger, &scorer
).unwrap();
let (payment_hash, _) = nodes[0].node.send_spontaneous_payment(&route, Some(payment_preimage)).unwrap();
nodes[1].node.peer_connected(&payer_pubkey, &msgs::Init { features: InitFeatures::known() });
let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
- let params = RouteParameters {
- payee: Payee::for_keysend(payee_pubkey),
+ let route_params = RouteParameters {
+ payment_params: PaymentParameters::for_keysend(payee_pubkey),
final_value_msat: 10000,
final_cltv_expiry_delta: 40,
};
let network_graph = nodes[0].network_graph;
let first_hops = nodes[0].node.list_usable_channels();
- let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
let route = find_route(
- &payer_pubkey, ¶ms, network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
+ &payer_pubkey, &route_params, network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
nodes[0].logger, &scorer
).unwrap();
nodes[1].node.peer_connected(&payer_pubkey, &msgs::Init { features: InitFeatures::known() });
let _chan = create_chan_between_nodes(&nodes[0], &nodes[1], InitFeatures::known(), InitFeatures::known());
- let params = RouteParameters {
- payee: Payee::for_keysend(payee_pubkey),
+ let route_params = RouteParameters {
+ payment_params: PaymentParameters::for_keysend(payee_pubkey),
final_value_msat: 10000,
final_cltv_expiry_delta: 40,
};
let network_graph = nodes[0].network_graph;
let first_hops = nodes[0].node.list_usable_channels();
- let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+ let scorer = test_utils::TestScorer::with_penalty(0);
let route = find_route(
- &payer_pubkey, ¶ms, network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
+ &payer_pubkey, &route_params, network_graph, Some(&first_hops.iter().collect::<Vec<_>>()),
nodes[0].logger, &scorer
).unwrap();
}
}
-#[cfg(all(any(test, feature = "_test_utils"), feature = "unstable"))]
+#[cfg(all(any(test, feature = "_test_utils"), feature = "_bench_unstable"))]
pub mod bench {
use chain::Listen;
use chain::chainmonitor::{ChainMonitor, Persist};
use ln::functional_test_utils::*;
use ln::msgs::{ChannelMessageHandler, Init};
use routing::network_graph::NetworkGraph;
- use routing::router::{Payee, get_route};
- use routing::scoring::Scorer;
+ use routing::router::{PaymentParameters, get_route};
use util::test_utils;
use util::config::UserConfig;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
macro_rules! send_payment {
($node_a: expr, $node_b: expr) => {
let usable_channels = $node_a.list_usable_channels();
- let payee = Payee::from_node_id($node_b.get_our_node_id())
+ let payment_params = PaymentParameters::from_node_id($node_b.get_our_node_id())
.with_features(InvoiceFeatures::known());
- let scorer = Scorer::with_fixed_penalty(0);
- let route = get_route(&$node_a.get_our_node_id(), &payee, &dummy_graph,
+ let scorer = test_utils::TestScorer::with_penalty(0);
+ let route = get_route(&$node_a.get_our_node_id(), &payment_params, &dummy_graph,
Some(&usable_channels.iter().map(|r| r).collect::<Vec<_>>()), 10_000, TEST_FINAL_CLTV, &logger_a, &scorer).unwrap();
let mut payment_preimage = PaymentPreimage([0; 32]);
projects / rust-lightning / blobdiff