use ln::msgs::NetAddress;
use ln::onion_utils;
use ln::msgs::{ChannelMessageHandler, DecodeError, LightningError, MAX_VALUE_MSAT, OptionalField};
+use ln::wire::Encode;
use chain::keysinterface::{Sign, KeysInterface, KeysManager, InMemorySigner, Recipient};
use util::config::UserConfig;
use util::events::{EventHandler, EventsProvider, MessageSendEvent, MessageSendEventsProvider, ClosureReason};
break None;
}
{
- let mut res = VecWriter(Vec::with_capacity(chan_update.serialized_length() + 8 + 2));
+ let mut res = VecWriter(Vec::with_capacity(chan_update.serialized_length() + 2 + 8 + 2));
if let Some(chan_update) = chan_update {
if code == 0x1000 | 11 || code == 0x1000 | 12 {
msg.amount_msat.write(&mut res).expect("Writes cannot fail");
// TODO: underspecified, follow https://github.com/lightningnetwork/lightning-rfc/issues/791
0u16.write(&mut res).expect("Writes cannot fail");
}
- (chan_update.serialized_length() as u16).write(&mut res).expect("Writes cannot fail");
+ (chan_update.serialized_length() as u16 + 2).write(&mut res).expect("Writes cannot fail");
+ msgs::ChannelUpdate::TYPE.write(&mut res).expect("Writes cannot fail");
chan_update.write(&mut res).expect("Writes cannot fail");
}
return_err!(err, code, &res.0[..]);
fn get_htlc_temp_fail_err_and_data(&self, desired_err_code: u16, scid: u64, chan: &Channel<Signer>) -> (u16, Vec<u8>) {
debug_assert_eq!(desired_err_code & 0x1000, 0x1000);
if let Ok(upd) = self.get_channel_update_for_onion(scid, chan) {
- let mut enc = VecWriter(Vec::with_capacity(upd.serialized_length() + 4));
+ let mut enc = VecWriter(Vec::with_capacity(upd.serialized_length() + 6));
if desired_err_code == 0x1000 | 20 {
// TODO: underspecified, follow https://github.com/lightning/bolts/issues/791
0u16.write(&mut enc).expect("Writes cannot fail");
}
- (upd.serialized_length() as u16).write(&mut enc).expect("Writes cannot fail");
+ (upd.serialized_length() as u16 + 2).write(&mut enc).expect("Writes cannot fail");
+ msgs::ChannelUpdate::TYPE.write(&mut enc).expect("Writes cannot fail");
upd.write(&mut enc).expect("Writes cannot fail");
(desired_err_code, enc.0)
} else {
use ln::features::{InitFeatures, InvoiceFeatures, NodeFeatures};
use ln::msgs;
use ln::msgs::{ChannelMessageHandler, ChannelUpdate, OptionalField};
+use ln::wire::Encode;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
use util::ser::{Writeable, Writer};
use util::{byte_utils, test_utils};
Some(BADONION|PERM|6), None, Some(short_channel_id));
let short_channel_id = channels[1].0.contents.short_channel_id;
+ let chan_update = ChannelUpdate::dummy(short_channel_id);
+
+ let mut err_data = Vec::new();
+ err_data.extend_from_slice(&(chan_update.serialized_length() as u16 + 2).to_be_bytes());
+ err_data.extend_from_slice(&ChannelUpdate::TYPE.to_be_bytes());
+ err_data.extend_from_slice(&chan_update.encode());
+ run_onion_failure_test_with_fail_intercept("temporary_channel_failure", 100, &nodes, &route, &payment_hash, &payment_secret, |msg| {
+ msg.amount_msat -= 1;
+ }, |msg| {
+ let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
+ let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
+ msg.reason = onion_utils::build_first_hop_failure_packet(onion_keys[0].shared_secret.as_ref(), UPDATE|7, &err_data);
+ }, ||{}, true, Some(UPDATE|7), Some(NetworkUpdate::ChannelUpdateMessage{msg: chan_update.clone()}), Some(short_channel_id));
+
+ // Check we can still handle onion failures that include channel updates without a type prefix
+ let err_data_without_type = chan_update.encode_with_len();
run_onion_failure_test_with_fail_intercept("temporary_channel_failure", 100, &nodes, &route, &payment_hash, &payment_secret, |msg| {
msg.amount_msat -= 1;
}, |msg| {
let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
- msg.reason = onion_utils::build_first_hop_failure_packet(onion_keys[0].shared_secret.as_ref(), UPDATE|7, &ChannelUpdate::dummy(short_channel_id).encode_with_len()[..]);
- }, ||{}, true, Some(UPDATE|7), Some(NetworkUpdate::ChannelUpdateMessage{msg: ChannelUpdate::dummy(short_channel_id)}), Some(short_channel_id));
+ msg.reason = onion_utils::build_first_hop_failure_packet(onion_keys[0].shared_secret.as_ref(), UPDATE|7, &err_data_without_type);
+ }, ||{}, true, Some(UPDATE|7), Some(NetworkUpdate::ChannelUpdateMessage{msg: chan_update}), Some(short_channel_id));
let short_channel_id = channels[1].0.contents.short_channel_id;
run_onion_failure_test_with_fail_intercept("permanent_channel_failure", 100, &nodes, &route, &payment_hash, &payment_secret, |msg| {
commitment_signed_dance!(nodes[0], nodes[1], update_1.commitment_signed, false);
// Ensure the payment fails with the expected error.
- let mut error_data = channel.1.encode_with_len();
+ let mut err_data = Vec::new();
+ err_data.extend_from_slice(&(channel.1.serialized_length() as u16 + 2).to_be_bytes());
+ err_data.extend_from_slice(&ChannelUpdate::TYPE.to_be_bytes());
+ err_data.extend_from_slice(&channel.1.encode());
+
let mut fail_conditions = PaymentFailedConditions::new()
.blamed_scid(channel.0.contents.short_channel_id)
.blamed_chan_closed(false)
- .expected_htlc_error_data(0x1000 | 7, &error_data);
+ .expected_htlc_error_data(0x1000 | 7, &err_data);
expect_payment_failed_conditions!(nodes[0], payment_hash, false, fail_conditions);
}
use ln::{PaymentHash, PaymentPreimage, PaymentSecret};
use ln::channelmanager::HTLCSource;
use ln::msgs;
+use ln::wire::Encode;
use routing::network_graph::NetworkUpdate;
use routing::router::RouteHop;
use util::chacha20::{ChaCha20, ChaChaReader};
else if error_code & UPDATE == UPDATE {
if let Some(update_len_slice) = err_packet.failuremsg.get(debug_field_size+2..debug_field_size+4) {
let update_len = u16::from_be_bytes(update_len_slice.try_into().expect("len is 2")) as usize;
- if let Some(update_slice) = err_packet.failuremsg.get(debug_field_size + 4..debug_field_size + 4 + update_len) {
+ if let Some(mut update_slice) = err_packet.failuremsg.get(debug_field_size + 4..debug_field_size + 4 + update_len) {
+ // Historically, the BOLTs were unclear if the message type
+ // bytes should be included here or not. The BOLTs have now
+ // been updated to indicate that they *are* included, but many
+ // nodes still send messages without the type bytes, so we
+ // support both here.
+ // TODO: Switch to hard require the type prefix, as the current
+ // permissiveness introduces the (although small) possibility
+ // that we fail to decode legitimate channel updates that
+ // happen to start with ChannelUpdate::TYPE, i.e., [0x01, 0x02].
+ if update_slice.len() > 2 && update_slice[0..2] == msgs::ChannelUpdate::TYPE.to_be_bytes() {
+ update_slice = &update_slice[2..];
+ } else {
+ log_trace!(logger, "Failure provided features a channel update without type prefix. Deprecated, but allowing for now.");
+ }
if let Ok(chan_update) = msgs::ChannelUpdate::read(&mut Cursor::new(&update_slice)) {
// if channel_update should NOT have caused the failure:
// MAY treat the channel_update as invalid.
// short channel id.
if failing_route_hop.short_channel_id == chan_update.contents.short_channel_id {
short_channel_id = Some(failing_route_hop.short_channel_id);
+ } else {
+ log_info!(logger, "Node provided a channel_update for which it was not authoritative, ignoring.");
}
network_update = Some(NetworkUpdate::ChannelUpdateMessage {
msg: chan_update,
let (description, title) = errors::get_onion_error_description(error_code);
if debug_field_size > 0 && err_packet.failuremsg.len() >= 4 + debug_field_size {
- log_warn!(logger, "Onion Error[from {}: {}({:#x}) {}({})] {}", route_hop.pubkey, title, error_code, debug_field, log_bytes!(&err_packet.failuremsg[4..4+debug_field_size]), description);
+ log_info!(logger, "Onion Error[from {}: {}({:#x}) {}({})] {}", route_hop.pubkey, title, error_code, debug_field, log_bytes!(&err_packet.failuremsg[4..4+debug_field_size]), description);
}
else {
- log_warn!(logger, "Onion Error[from {}: {}({:#x})] {}", route_hop.pubkey, title, error_code, description);
+ log_info!(logger, "Onion Error[from {}: {}({:#x})] {}", route_hop.pubkey, title, error_code, description);
}
} else {
// Useless packet that we can't use but it passed HMAC, so it
use routing::router::{PaymentParameters, RouteHint, RouteHintHop};
use ln::features::{InitFeatures, InvoiceFeatures};
use ln::msgs;
-use ln::msgs::{ChannelMessageHandler, RoutingMessageHandler, OptionalField};
+use ln::msgs::{ChannelMessageHandler, RoutingMessageHandler, OptionalField, ChannelUpdate};
+use ln::wire::Encode;
use util::enforcing_trait_impls::EnforcingSigner;
use util::events::{Event, MessageSendEvent, MessageSendEventsProvider};
use util::config::UserConfig;
let signature = Secp256k1::new().sign_ecdsa(&hash_to_message!(&msg_hash[..]), &nodes[1].keys_manager.get_node_secret(Recipient::Node).unwrap());
let msg = msgs::ChannelUpdate { signature, contents };
+ let mut err_data = Vec::new();
+ err_data.extend_from_slice(&(msg.serialized_length() as u16 + 2).to_be_bytes());
+ err_data.extend_from_slice(&ChannelUpdate::TYPE.to_be_bytes());
+ err_data.extend_from_slice(&msg.encode());
+
expect_payment_failed_conditions!(nodes[0], payment_hash, false,
PaymentFailedConditions::new().blamed_scid(last_hop[0].inbound_scid_alias.unwrap())
- .blamed_chan_closed(false).expected_htlc_error_data(0x1000|7, &msg.encode_with_len()));
+ .blamed_chan_closed(false).expected_htlc_error_data(0x1000|7, &err_data));
route.paths[0][1].fee_msat = 10_000; // Reset to the correct payment amount
route.paths[0][0].fee_msat = 0; // But set fee paid to the middle hop to 0
let mut err_data = Vec::new();
err_data.extend_from_slice(&10_000u64.to_be_bytes());
- err_data.extend_from_slice(&msg.encode_with_len());
+ err_data.extend_from_slice(&(msg.serialized_length() as u16 + 2).to_be_bytes());
+ err_data.extend_from_slice(&ChannelUpdate::TYPE.to_be_bytes());
+ err_data.extend_from_slice(&msg.encode());
expect_payment_failed_conditions!(nodes[0], payment_hash, false,
PaymentFailedConditions::new().blamed_scid(last_hop[0].inbound_scid_alias.unwrap())
.blamed_chan_closed(false).expected_htlc_error_data(0x1000|12, &err_data));
projects / rust-lightning / commitdiff