X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=fuzz%2Fsrc%2Fchanmon_consistency.rs;h=3feeaf46d5e1636d01736a904c9a52aeb8f2b5fa;hb=3f2efcdfa73ee703093107f908cc7eeb0aa467e8;hp=e0a4d654cca426a85dfa95c78379d9be105313b6;hpb=c1c9b1175bf6726c3a20d7da76fe6950ce55df66;p=rust-lightning diff --git a/fuzz/src/chanmon_consistency.rs b/fuzz/src/chanmon_consistency.rs index e0a4d654..3feeaf46 100644 --- a/fuzz/src/chanmon_consistency.rs +++ b/fuzz/src/chanmon_consistency.rs @@ -1,3 +1,12 @@ +// This file is Copyright its original authors, visible in version control +// history. +// +// This file is licensed under the Apache License, Version 2.0 or the MIT license +// , at your option. +// You may not use this file except in accordance with one or both of these +// licenses. + //! Test that monitor update failures don't get our channel state out of sync. //! One of the biggest concern with the monitor update failure handling code is that messages //! resent after monitor updating is restored are delivered out-of-order, resulting in @@ -9,8 +18,8 @@ //! send-side handling is correct, other peers. We consider it a failure if any action results in a //! channel being force-closed. -use bitcoin::BitcoinHash; use bitcoin::blockdata::block::BlockHeader; +use bitcoin::blockdata::constants::genesis_block; use bitcoin::blockdata::transaction::{Transaction, TxOut}; use bitcoin::blockdata::script::{Builder, Script}; use bitcoin::blockdata::opcodes; @@ -20,25 +29,29 @@ use bitcoin::hashes::Hash as TraitImport; use bitcoin::hashes::sha256::Hash as Sha256; use bitcoin::hash_types::{BlockHash, WPubkeyHash}; -use lightning::chain::chaininterface; +use lightning::chain; +use lightning::chain::chainmonitor; +use lightning::chain::channelmonitor; +use lightning::chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, MonitorEvent}; use lightning::chain::transaction::OutPoint; -use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil,ChainWatchInterface}; -use lightning::chain::keysinterface::{KeysInterface, InMemoryChannelKeys}; -use lightning::ln::channelmonitor; -use lightning::ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, HTLCUpdate}; -use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage, PaymentSecret, ChannelManagerReadArgs}; +use lightning::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator}; +use lightning::chain::keysinterface::{KeysInterface, InMemorySigner}; +use lightning::ln::channelmanager::{ChainParameters, ChannelManager, PaymentHash, PaymentPreimage, PaymentSecret, PaymentSendFailure, ChannelManagerReadArgs}; use lightning::ln::features::{ChannelFeatures, InitFeatures, NodeFeatures}; -use lightning::ln::msgs::{CommitmentUpdate, ChannelMessageHandler, ErrorAction, UpdateAddHTLC, Init}; -use lightning::util::enforcing_trait_impls::EnforcingChannelKeys; +use lightning::ln::msgs::{CommitmentUpdate, ChannelMessageHandler, DecodeError, ErrorAction, UpdateAddHTLC, Init}; +use lightning::util::enforcing_trait_impls::{EnforcingSigner, INITIAL_REVOKED_COMMITMENT_NUMBER}; +use lightning::util::errors::APIError; use lightning::util::events; use lightning::util::logger::Logger; use lightning::util::config::UserConfig; use lightning::util::events::{EventsProvider, MessageSendEventsProvider}; use lightning::util::ser::{Readable, ReadableArgs, Writeable, Writer}; +use lightning::util::test_utils::OnlyReadsKeysInterface; use lightning::routing::router::{Route, RouteHop}; use utils::test_logger; +use utils::test_persister::TestPersister; use bitcoin::secp256k1::key::{PublicKey,SecretKey}; use bitcoin::secp256k1::Secp256k1; @@ -52,7 +65,7 @@ use std::io::Cursor; struct FuzzEstimator {} impl FeeEstimator for FuzzEstimator { - fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 { + fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u32 { 253 } } @@ -73,9 +86,9 @@ impl Writer for VecWriter { } } -struct TestChannelMonitor { +struct TestChainMonitor { pub logger: Arc, - pub simple_monitor: Arc, Arc, Arc, Arc>>, + pub chain_monitor: Arc, Arc, Arc, Arc, Arc>>, pub update_ret: Mutex>, // If we reload a node with an old copy of ChannelMonitors, the ChannelManager deserialization // logic will automatically force-close our channels for us (as we don't have an up-to-date @@ -85,10 +98,10 @@ struct TestChannelMonitor { pub latest_monitors: Mutex)>>, pub should_update_manager: atomic::AtomicBool, } -impl TestChannelMonitor { - pub fn new(chain_monitor: Arc, broadcaster: Arc, logger: Arc, feeest: Arc) -> Self { +impl TestChainMonitor { + pub fn new(broadcaster: Arc, logger: Arc, feeest: Arc, persister: Arc) -> Self { Self { - simple_monitor: Arc::new(channelmonitor::SimpleManyChannelMonitor::new(chain_monitor, broadcaster, logger.clone(), feeest)), + chain_monitor: Arc::new(chainmonitor::ChainMonitor::new(None, broadcaster, logger.clone(), feeest, persister)), logger, update_ret: Mutex::new(Ok(())), latest_monitors: Mutex::new(HashMap::new()), @@ -96,48 +109,46 @@ impl TestChannelMonitor { } } } -impl channelmonitor::ManyChannelMonitor for TestChannelMonitor { - type Keys = EnforcingChannelKeys; - - fn add_monitor(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> { +impl chain::Watch for TestChainMonitor { + fn watch_channel(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> { let mut ser = VecWriter(Vec::new()); - monitor.write_for_disk(&mut ser).unwrap(); + monitor.write(&mut ser).unwrap(); if let Some(_) = self.latest_monitors.lock().unwrap().insert(funding_txo, (monitor.get_latest_update_id(), ser.0)) { - panic!("Already had monitor pre-add_monitor"); + panic!("Already had monitor pre-watch_channel"); } self.should_update_manager.store(true, atomic::Ordering::Relaxed); - assert!(self.simple_monitor.add_monitor(funding_txo, monitor).is_ok()); + assert!(self.chain_monitor.watch_channel(funding_txo, monitor).is_ok()); self.update_ret.lock().unwrap().clone() } - fn update_monitor(&self, funding_txo: OutPoint, update: channelmonitor::ChannelMonitorUpdate) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> { + fn update_channel(&self, funding_txo: OutPoint, update: channelmonitor::ChannelMonitorUpdate) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> { let mut map_lock = self.latest_monitors.lock().unwrap(); let mut map_entry = match map_lock.entry(funding_txo) { hash_map::Entry::Occupied(entry) => entry, hash_map::Entry::Vacant(_) => panic!("Didn't have monitor on update call"), }; - let mut deserialized_monitor = <(BlockHash, channelmonitor::ChannelMonitor)>:: - read(&mut Cursor::new(&map_entry.get().1)).unwrap().1; - deserialized_monitor.update_monitor(update.clone(), &&TestBroadcaster {}, &self.logger).unwrap(); + let deserialized_monitor = <(BlockHash, channelmonitor::ChannelMonitor)>:: + read(&mut Cursor::new(&map_entry.get().1), &OnlyReadsKeysInterface {}).unwrap().1; + deserialized_monitor.update_monitor(&update, &&TestBroadcaster{}, &&FuzzEstimator{}, &self.logger).unwrap(); let mut ser = VecWriter(Vec::new()); - deserialized_monitor.write_for_disk(&mut ser).unwrap(); + deserialized_monitor.write(&mut ser).unwrap(); map_entry.insert((update.update_id, ser.0)); self.should_update_manager.store(true, atomic::Ordering::Relaxed); self.update_ret.lock().unwrap().clone() } - fn get_and_clear_pending_htlcs_updated(&self) -> Vec { - return self.simple_monitor.get_and_clear_pending_htlcs_updated(); + fn release_pending_monitor_events(&self) -> Vec { + return self.chain_monitor.release_pending_monitor_events(); } } struct KeyProvider { node_id: u8, - session_id: atomic::AtomicU8, - channel_id: atomic::AtomicU8, + rand_bytes_id: atomic::AtomicU8, + revoked_commitments: Mutex>>>, } impl KeysInterface for KeyProvider { - type ChanKeySigner = EnforcingChannelKeys; + type Signer = EnforcingSigner; fn get_node_secret(&self) -> SecretKey { SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, self.node_id]).unwrap() @@ -155,32 +166,143 @@ impl KeysInterface for KeyProvider { PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, self.node_id]).unwrap()) } - fn get_channel_keys(&self, _inbound: bool, channel_value_satoshis: u64) -> EnforcingChannelKeys { + fn get_channel_signer(&self, _inbound: bool, channel_value_satoshis: u64) -> EnforcingSigner { let secp_ctx = Secp256k1::signing_only(); - EnforcingChannelKeys::new(InMemoryChannelKeys::new( + let id = self.rand_bytes_id.fetch_add(1, atomic::Ordering::Relaxed); + let keys = InMemorySigner::new( &secp_ctx, SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, self.node_id]).unwrap(), SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, self.node_id]).unwrap(), SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 6, self.node_id]).unwrap(), SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 7, self.node_id]).unwrap(), SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 8, self.node_id]).unwrap(), - [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, self.node_id], + [id, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 9, self.node_id], channel_value_satoshis, - (0, 0), - )) + [0; 32], + ); + let revoked_commitment = self.make_revoked_commitment_cell(keys.commitment_seed); + EnforcingSigner::new_with_revoked(keys, revoked_commitment, false) } - fn get_onion_rand(&self) -> (SecretKey, [u8; 32]) { - let id = self.session_id.fetch_add(1, atomic::Ordering::Relaxed); - (SecretKey::from_slice(&[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 10, self.node_id]).unwrap(), - [0; 32]) + fn get_secure_random_bytes(&self) -> [u8; 32] { + let id = self.rand_bytes_id.fetch_add(1, atomic::Ordering::Relaxed); + [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 11, self.node_id] } - fn get_channel_id(&self) -> [u8; 32] { - let id = self.channel_id.fetch_add(1, atomic::Ordering::Relaxed); - [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, id, 11, self.node_id] + fn read_chan_signer(&self, buffer: &[u8]) -> Result { + let mut reader = std::io::Cursor::new(buffer); + + let inner: InMemorySigner = Readable::read(&mut reader)?; + let revoked_commitment = self.make_revoked_commitment_cell(inner.commitment_seed); + + let last_commitment_number = Readable::read(&mut reader)?; + + Ok(EnforcingSigner { + inner, + last_commitment_number: Arc::new(Mutex::new(last_commitment_number)), + revoked_commitment, + disable_revocation_policy_check: false, + }) + } +} + +impl KeyProvider { + fn make_revoked_commitment_cell(&self, commitment_seed: [u8; 32]) -> Arc> { + let mut revoked_commitments = self.revoked_commitments.lock().unwrap(); + if !revoked_commitments.contains_key(&commitment_seed) { + revoked_commitments.insert(commitment_seed, Arc::new(Mutex::new(INITIAL_REVOKED_COMMITMENT_NUMBER))); + } + let cell = revoked_commitments.get(&commitment_seed).unwrap(); + Arc::clone(cell) + } +} + +#[inline] +fn check_api_err(api_err: APIError) { + match api_err { + APIError::APIMisuseError { .. } => panic!("We can't misuse the API"), + APIError::FeeRateTooHigh { .. } => panic!("We can't send too much fee?"), + APIError::RouteError { .. } => panic!("Our routes should work"), + APIError::ChannelUnavailable { err } => { + // Test the error against a list of errors we can hit, and reject + // all others. If you hit this panic, the list of acceptable errors + // is probably just stale and you should add new messages here. + match err.as_str() { + "Peer for first hop currently disconnected/pending monitor update!" => {}, + _ if err.starts_with("Cannot push more than their max accepted HTLCs ") => {}, + _ if err.starts_with("Cannot send value that would put us over the max HTLC value in flight our peer will accept ") => {}, + _ if err.starts_with("Cannot send value that would put our balance under counterparty-announced channel reserve value") => {}, + _ if err.starts_with("Cannot send value that would overdraw remaining funds.") => {}, + _ if err.starts_with("Cannot send value that would not leave enough to pay for fees.") => {}, + _ => panic!(err), + } + }, + APIError::MonitorUpdateFailed => { + // We can (obviously) temp-fail a monitor update + }, } } +#[inline] +fn check_payment_err(send_err: PaymentSendFailure) { + match send_err { + PaymentSendFailure::ParameterError(api_err) => check_api_err(api_err), + PaymentSendFailure::PathParameterError(per_path_results) => { + for res in per_path_results { if let Err(api_err) = res { check_api_err(api_err); } } + }, + PaymentSendFailure::AllFailedRetrySafe(per_path_results) => { + for api_err in per_path_results { check_api_err(api_err); } + }, + PaymentSendFailure::PartialFailure(per_path_results) => { + for res in per_path_results { if let Err(api_err) = res { check_api_err(api_err); } } + }, + } +} + +type ChanMan = ChannelManager, Arc, Arc, Arc, Arc>; + +#[inline] +fn send_payment(source: &ChanMan, dest: &ChanMan, dest_chan_id: u64, amt: u64, payment_id: &mut u8) -> bool { + let payment_hash = Sha256::hash(&[*payment_id; 1]); + *payment_id = payment_id.wrapping_add(1); + if let Err(err) = source.send_payment(&Route { + paths: vec![vec![RouteHop { + pubkey: dest.get_our_node_id(), + node_features: NodeFeatures::empty(), + short_channel_id: dest_chan_id, + channel_features: ChannelFeatures::empty(), + fee_msat: amt, + cltv_expiry_delta: 200, + }]], + }, PaymentHash(payment_hash.into_inner()), &None) { + check_payment_err(err); + false + } else { true } +} +#[inline] +fn send_hop_payment(source: &ChanMan, middle: &ChanMan, middle_chan_id: u64, dest: &ChanMan, dest_chan_id: u64, amt: u64, payment_id: &mut u8) -> bool { + let payment_hash = Sha256::hash(&[*payment_id; 1]); + *payment_id = payment_id.wrapping_add(1); + if let Err(err) = source.send_payment(&Route { + paths: vec![vec![RouteHop { + pubkey: middle.get_our_node_id(), + node_features: NodeFeatures::empty(), + short_channel_id: middle_chan_id, + channel_features: ChannelFeatures::empty(), + fee_msat: 50000, + cltv_expiry_delta: 100, + },RouteHop { + pubkey: dest.get_our_node_id(), + node_features: NodeFeatures::empty(), + short_channel_id: dest_chan_id, + channel_features: ChannelFeatures::empty(), + fee_msat: amt, + cltv_expiry_delta: 200, + }]], + }, PaymentHash(payment_hash.into_inner()), &None) { + check_payment_err(err); + false + } else { true } +} #[inline] pub fn do_test(data: &[u8], out: Out) { @@ -190,26 +312,30 @@ pub fn do_test(data: &[u8], out: Out) { macro_rules! make_node { ($node_id: expr) => { { let logger: Arc = Arc::new(test_logger::TestLogger::new($node_id.to_string(), out.clone())); - let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin)); - let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone())); + let monitor = Arc::new(TestChainMonitor::new(broadcast.clone(), logger.clone(), fee_est.clone(), Arc::new(TestPersister{}))); - let keys_manager = Arc::new(KeyProvider { node_id: $node_id, session_id: atomic::AtomicU8::new(0), channel_id: atomic::AtomicU8::new(0) }); + let keys_manager = Arc::new(KeyProvider { node_id: $node_id, rand_bytes_id: atomic::AtomicU8::new(0), revoked_commitments: Mutex::new(HashMap::new()) }); let mut config = UserConfig::default(); config.channel_options.fee_proportional_millionths = 0; config.channel_options.announced_channel = true; config.peer_channel_config_limits.min_dust_limit_satoshis = 0; - (Arc::new(ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, 0)), - monitor) + let network = Network::Bitcoin; + let params = ChainParameters { + network, + latest_hash: genesis_block(network).block_hash(), + latest_height: 0, + }; + (ChannelManager::new(fee_est.clone(), monitor.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config, params), + monitor, keys_manager) } } } macro_rules! reload_node { - ($ser: expr, $node_id: expr, $old_monitors: expr) => { { + ($ser: expr, $node_id: expr, $old_monitors: expr, $keys_manager: expr) => { { + let keys_manager = Arc::clone(& $keys_manager); let logger: Arc = Arc::new(test_logger::TestLogger::new($node_id.to_string(), out.clone())); - let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin)); - let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone())); + let chain_monitor = Arc::new(TestChainMonitor::new(broadcast.clone(), logger.clone(), fee_est.clone(), Arc::new(TestPersister{}))); - let keys_manager = Arc::new(KeyProvider { node_id: $node_id, session_id: atomic::AtomicU8::new(0), channel_id: atomic::AtomicU8::new(0) }); let mut config = UserConfig::default(); config.channel_options.fee_proportional_millionths = 0; config.channel_options.announced_channel = true; @@ -218,8 +344,8 @@ pub fn do_test(data: &[u8], out: Out) { let mut monitors = HashMap::new(); let mut old_monitors = $old_monitors.latest_monitors.lock().unwrap(); for (outpoint, (update_id, monitor_ser)) in old_monitors.drain() { - monitors.insert(outpoint, <(BlockHash, ChannelMonitor)>::read(&mut Cursor::new(&monitor_ser)).expect("Failed to read monitor").1); - monitor.latest_monitors.lock().unwrap().insert(outpoint, (update_id, monitor_ser)); + monitors.insert(outpoint, <(BlockHash, ChannelMonitor)>::read(&mut Cursor::new(&monitor_ser), &OnlyReadsKeysInterface {}).expect("Failed to read monitor").1); + chain_monitor.latest_monitors.lock().unwrap().insert(outpoint, (update_id, monitor_ser)); } let mut monitor_refs = HashMap::new(); for (outpoint, monitor) in monitors.iter_mut() { @@ -229,21 +355,21 @@ pub fn do_test(data: &[u8], out: Out) { let read_args = ChannelManagerReadArgs { keys_manager, fee_estimator: fee_est.clone(), - monitor: monitor.clone(), + chain_monitor: chain_monitor.clone(), tx_broadcaster: broadcast.clone(), logger, default_config: config, - channel_monitors: &mut monitor_refs, + channel_monitors: monitor_refs, }; - (<(BlockHash, ChannelManager, Arc, Arc, Arc, Arc>)>::read(&mut Cursor::new(&$ser.0), read_args).expect("Failed to read manager").1, monitor) + (<(BlockHash, ChanMan)>::read(&mut Cursor::new(&$ser.0), read_args).expect("Failed to read manager").1, chain_monitor) } } } let mut channel_txn = Vec::new(); macro_rules! make_channel { ($source: expr, $dest: expr, $chan_id: expr) => { { - $source.create_channel($dest.get_our_node_id(), 10000000, 42, 0, None).unwrap(); + $source.create_channel($dest.get_our_node_id(), 100_000, 42, 0, None).unwrap(); let open_channel = { let events = $source.get_and_clear_pending_msg_events(); assert_eq!(events.len(), 1); @@ -271,7 +397,7 @@ pub fn do_test(data: &[u8], out: Out) { value: *channel_value_satoshis, script_pubkey: output_script.clone(), }]}; funding_output = OutPoint { txid: tx.txid(), index: 0 }; - $source.funding_transaction_generated(&temporary_channel_id, funding_output); + $source.funding_transaction_generated(&temporary_channel_id, tx.clone()).unwrap(); channel_txn.push(tx); } else { panic!("Wrong event type"); } } @@ -294,29 +420,19 @@ pub fn do_test(data: &[u8], out: Out) { }; $source.handle_funding_signed(&$dest.get_our_node_id(), &funding_signed); - { - let events = $source.get_and_clear_pending_events(); - assert_eq!(events.len(), 1); - if let events::Event::FundingBroadcastSafe { .. } = events[0] { - } else { panic!("Wrong event type"); } - } funding_output } } } macro_rules! confirm_txn { ($node: expr) => { { - let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - let mut txn = Vec::with_capacity(channel_txn.len()); - let mut posn = Vec::with_capacity(channel_txn.len()); - for i in 0..channel_txn.len() { - txn.push(&channel_txn[i]); - posn.push(i as u32 + 1); - } - $node.block_connected(&header, 1, &txn, &posn); + let chain_hash = genesis_block(Network::Bitcoin).block_hash(); + let mut header = BlockHeader { version: 0x20000000, prev_blockhash: chain_hash, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + let txdata: Vec<_> = channel_txn.iter().enumerate().map(|(i, tx)| (i + 1, tx)).collect(); + $node.block_connected(&header, &txdata, 1); for i in 2..100 { - header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - $node.block_connected(&header, i, &Vec::new(), &[0; 0]); + header = BlockHeader { version: 0x20000000, prev_blockhash: header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + $node.block_connected(&header, &[], i); } } } } @@ -351,9 +467,9 @@ pub fn do_test(data: &[u8], out: Out) { // 3 nodes is enough to hit all the possible cases, notably unknown-source-unknown-dest // forwarding. - let (mut node_a, mut monitor_a) = make_node!(0); - let (mut node_b, mut monitor_b) = make_node!(1); - let (mut node_c, mut monitor_c) = make_node!(2); + let (node_a, mut monitor_a, keys_manager_a) = make_node!(0); + let (node_b, mut monitor_b, keys_manager_b) = make_node!(1); + let (node_c, mut monitor_c, keys_manager_c) = make_node!(2); let mut nodes = [node_a, node_b, node_c]; @@ -369,7 +485,7 @@ pub fn do_test(data: &[u8], out: Out) { let chan_a = nodes[0].list_usable_channels()[0].short_channel_id.unwrap(); let chan_b = nodes[2].list_usable_channels()[0].short_channel_id.unwrap(); - let mut payment_id = 0; + let mut payment_id: u8 = 0; let mut chan_a_disconnected = false; let mut chan_b_disconnected = false; @@ -407,88 +523,44 @@ pub fn do_test(data: &[u8], out: Out) { } loop { - macro_rules! send_payment { - ($source: expr, $dest: expr, $amt: expr) => { { - let payment_hash = Sha256::hash(&[payment_id; 1]); - payment_id = payment_id.wrapping_add(1); - if let Err(_) = $source.send_payment(&Route { - paths: vec![vec![RouteHop { - pubkey: $dest.0.get_our_node_id(), - node_features: NodeFeatures::empty(), - short_channel_id: $dest.1, - channel_features: ChannelFeatures::empty(), - fee_msat: $amt, - cltv_expiry_delta: 200, - }]], - }, PaymentHash(payment_hash.into_inner()), &None) { - // Probably ran out of funds - test_return!(); - } - } }; - ($source: expr, $middle: expr, $dest: expr, $amt: expr) => { { - let payment_hash = Sha256::hash(&[payment_id; 1]); - payment_id = payment_id.wrapping_add(1); - if let Err(_) = $source.send_payment(&Route { - paths: vec![vec![RouteHop { - pubkey: $middle.0.get_our_node_id(), - node_features: NodeFeatures::empty(), - short_channel_id: $middle.1, - channel_features: ChannelFeatures::empty(), - fee_msat: 50000, - cltv_expiry_delta: 100, - },RouteHop { - pubkey: $dest.0.get_our_node_id(), - node_features: NodeFeatures::empty(), - short_channel_id: $dest.1, - channel_features: ChannelFeatures::empty(), - fee_msat: $amt, - cltv_expiry_delta: 200, - }]], - }, PaymentHash(payment_hash.into_inner()), &None) { - // Probably ran out of funds - test_return!(); - } - } } - } macro_rules! send_payment_with_secret { ($source: expr, $middle: expr, $dest: expr) => { { let payment_hash = Sha256::hash(&[payment_id; 1]); payment_id = payment_id.wrapping_add(1); let payment_secret = Sha256::hash(&[payment_id; 1]); payment_id = payment_id.wrapping_add(1); - if let Err(_) = $source.send_payment(&Route { + if let Err(err) = $source.send_payment(&Route { paths: vec![vec![RouteHop { pubkey: $middle.0.get_our_node_id(), node_features: NodeFeatures::empty(), short_channel_id: $middle.1, channel_features: ChannelFeatures::empty(), - fee_msat: 50000, + fee_msat: 50_000, cltv_expiry_delta: 100, },RouteHop { pubkey: $dest.0.get_our_node_id(), node_features: NodeFeatures::empty(), short_channel_id: $dest.1, channel_features: ChannelFeatures::empty(), - fee_msat: 5000000, + fee_msat: 10_000_000, cltv_expiry_delta: 200, }],vec![RouteHop { pubkey: $middle.0.get_our_node_id(), node_features: NodeFeatures::empty(), short_channel_id: $middle.1, channel_features: ChannelFeatures::empty(), - fee_msat: 50000, + fee_msat: 50_000, cltv_expiry_delta: 100, },RouteHop { pubkey: $dest.0.get_our_node_id(), node_features: NodeFeatures::empty(), short_channel_id: $dest.1, channel_features: ChannelFeatures::empty(), - fee_msat: 5000000, + fee_msat: 10_000_000, cltv_expiry_delta: 200, }]], }, PaymentHash(payment_hash.into_inner()), &Some(PaymentSecret(payment_secret.into_inner()))) { - // Probably ran out of funds - test_return!(); + check_payment_err(err); } } } } @@ -502,7 +574,9 @@ pub fn do_test(data: &[u8], out: Out) { bc_events.clear(); new_events } else { Vec::new() }; + let mut had_events = false; for event in events.iter().chain(nodes[$node].get_and_clear_pending_msg_events().iter()) { + had_events = true; match event { events::MessageSendEvent::UpdateHTLCs { ref node_id, updates: CommitmentUpdate { ref update_add_htlcs, ref update_fail_htlcs, ref update_fulfill_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => { for dest in nodes.iter() { @@ -556,13 +630,10 @@ pub fn do_test(data: &[u8], out: Out) { // Can be generated due to a payment forward being rejected due to a // channel having previously failed a monitor update }, - events::MessageSendEvent::HandleError { action: ErrorAction::IgnoreError, .. } => { - // Can be generated at any processing step to send back an error, disconnect - // peer or just ignore - }, _ => panic!("Unhandled message event"), } } + had_events } } } @@ -642,6 +713,7 @@ pub fn do_test(data: &[u8], out: Out) { } else { Ordering::Equal } } else { Ordering::Equal } }); + let had_events = !events.is_empty(); for event in events.drain(..) { match event { events::Event::PaymentReceived { payment_hash, payment_secret, amt } => { @@ -661,43 +733,44 @@ pub fn do_test(data: &[u8], out: Out) { _ => panic!("Unhandled event"), } } + had_events } } } match get_slice!(1)[0] { + // In general, we keep related message groups close together in binary form, allowing + // bit-twiddling mutations to have similar effects. This is probably overkill, but no + // harm in doing so. + 0x00 => *monitor_a.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure), 0x01 => *monitor_b.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure), 0x02 => *monitor_c.update_ret.lock().unwrap() = Err(ChannelMonitorUpdateErr::TemporaryFailure), - 0x03 => *monitor_a.update_ret.lock().unwrap() = Ok(()), - 0x04 => *monitor_b.update_ret.lock().unwrap() = Ok(()), - 0x05 => *monitor_c.update_ret.lock().unwrap() = Ok(()), - 0x06 => { + 0x04 => *monitor_a.update_ret.lock().unwrap() = Ok(()), + 0x05 => *monitor_b.update_ret.lock().unwrap() = Ok(()), + 0x06 => *monitor_c.update_ret.lock().unwrap() = Ok(()), + + 0x08 => { if let Some((id, _)) = monitor_a.latest_monitors.lock().unwrap().get(&chan_1_funding) { nodes[0].channel_monitor_updated(&chan_1_funding, *id); } }, - 0x07 => { + 0x09 => { if let Some((id, _)) = monitor_b.latest_monitors.lock().unwrap().get(&chan_1_funding) { nodes[1].channel_monitor_updated(&chan_1_funding, *id); } }, - 0x24 => { + 0x0a => { if let Some((id, _)) = monitor_b.latest_monitors.lock().unwrap().get(&chan_2_funding) { nodes[1].channel_monitor_updated(&chan_2_funding, *id); } }, - 0x08 => { + 0x0b => { if let Some((id, _)) = monitor_c.latest_monitors.lock().unwrap().get(&chan_2_funding) { nodes[2].channel_monitor_updated(&chan_2_funding, *id); } }, - 0x09 => send_payment!(nodes[0], (&nodes[1], chan_a), 5_000_000), - 0x0a => send_payment!(nodes[1], (&nodes[0], chan_a), 5_000_000), - 0x0b => send_payment!(nodes[1], (&nodes[2], chan_b), 5_000_000), - 0x0c => send_payment!(nodes[2], (&nodes[1], chan_b), 5_000_000), - 0x0d => send_payment!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b), 5_000_000), - 0x0e => send_payment!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a), 5_000_000), - 0x0f => { + + 0x0c => { if !chan_a_disconnected { nodes[0].peer_disconnected(&nodes[1].get_our_node_id(), false); nodes[1].peer_disconnected(&nodes[0].get_our_node_id(), false); @@ -705,7 +778,7 @@ pub fn do_test(data: &[u8], out: Out) { drain_msg_events_on_disconnect!(0); } }, - 0x10 => { + 0x0d => { if !chan_b_disconnected { nodes[1].peer_disconnected(&nodes[2].get_our_node_id(), false); nodes[2].peer_disconnected(&nodes[1].get_our_node_id(), false); @@ -713,44 +786,45 @@ pub fn do_test(data: &[u8], out: Out) { drain_msg_events_on_disconnect!(2); } }, - 0x11 => { + 0x0e => { if chan_a_disconnected { nodes[0].peer_connected(&nodes[1].get_our_node_id(), &Init { features: InitFeatures::empty() }); nodes[1].peer_connected(&nodes[0].get_our_node_id(), &Init { features: InitFeatures::empty() }); chan_a_disconnected = false; } }, - 0x12 => { + 0x0f => { if chan_b_disconnected { nodes[1].peer_connected(&nodes[2].get_our_node_id(), &Init { features: InitFeatures::empty() }); nodes[2].peer_connected(&nodes[1].get_our_node_id(), &Init { features: InitFeatures::empty() }); chan_b_disconnected = false; } }, - 0x13 => process_msg_events!(0, true), - 0x14 => process_msg_events!(0, false), - 0x15 => process_events!(0, true), - 0x16 => process_events!(0, false), - 0x17 => process_msg_events!(1, true), - 0x18 => process_msg_events!(1, false), - 0x19 => process_events!(1, true), - 0x1a => process_events!(1, false), - 0x1b => process_msg_events!(2, true), - 0x1c => process_msg_events!(2, false), - 0x1d => process_events!(2, true), - 0x1e => process_events!(2, false), - 0x1f => { + + 0x10 => { process_msg_events!(0, true); }, + 0x11 => { process_msg_events!(0, false); }, + 0x12 => { process_events!(0, true); }, + 0x13 => { process_events!(0, false); }, + 0x14 => { process_msg_events!(1, true); }, + 0x15 => { process_msg_events!(1, false); }, + 0x16 => { process_events!(1, true); }, + 0x17 => { process_events!(1, false); }, + 0x18 => { process_msg_events!(2, true); }, + 0x19 => { process_msg_events!(2, false); }, + 0x1a => { process_events!(2, true); }, + 0x1b => { process_events!(2, false); }, + + 0x1c => { if !chan_a_disconnected { nodes[1].peer_disconnected(&nodes[0].get_our_node_id(), false); chan_a_disconnected = true; drain_msg_events_on_disconnect!(0); } - let (new_node_a, new_monitor_a) = reload_node!(node_a_ser, 0, monitor_a); - node_a = Arc::new(new_node_a); - nodes[0] = node_a.clone(); + let (new_node_a, new_monitor_a) = reload_node!(node_a_ser, 0, monitor_a, keys_manager_a); + nodes[0] = new_node_a; monitor_a = new_monitor_a; }, - 0x20 => { + 0x1d => { if !chan_a_disconnected { nodes[0].peer_disconnected(&nodes[1].get_our_node_id(), false); chan_a_disconnected = true; @@ -763,43 +837,137 @@ pub fn do_test(data: &[u8], out: Out) { nodes[2].get_and_clear_pending_msg_events(); bc_events.clear(); } - let (new_node_b, new_monitor_b) = reload_node!(node_b_ser, 1, monitor_b); - node_b = Arc::new(new_node_b); - nodes[1] = node_b.clone(); + let (new_node_b, new_monitor_b) = reload_node!(node_b_ser, 1, monitor_b, keys_manager_b); + nodes[1] = new_node_b; monitor_b = new_monitor_b; }, - 0x21 => { + 0x1e => { if !chan_b_disconnected { nodes[1].peer_disconnected(&nodes[2].get_our_node_id(), false); chan_b_disconnected = true; drain_msg_events_on_disconnect!(2); } - let (new_node_c, new_monitor_c) = reload_node!(node_c_ser, 2, monitor_c); - node_c = Arc::new(new_node_c); - nodes[2] = node_c.clone(); + let (new_node_c, new_monitor_c) = reload_node!(node_c_ser, 2, monitor_c, keys_manager_c); + nodes[2] = new_node_c; monitor_c = new_monitor_c; }, - 0x22 => send_payment_with_secret!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b)), - 0x23 => send_payment_with_secret!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a)), - 0x25 => send_payment!(nodes[0], (&nodes[1], chan_a), 10), - 0x26 => send_payment!(nodes[1], (&nodes[0], chan_a), 10), - 0x27 => send_payment!(nodes[1], (&nodes[2], chan_b), 10), - 0x28 => send_payment!(nodes[2], (&nodes[1], chan_b), 10), - 0x29 => send_payment!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b), 10), - 0x2a => send_payment!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a), 10), - 0x2b => send_payment!(nodes[0], (&nodes[1], chan_a), 1_000), - 0x2c => send_payment!(nodes[1], (&nodes[0], chan_a), 1_000), - 0x2d => send_payment!(nodes[1], (&nodes[2], chan_b), 1_000), - 0x2e => send_payment!(nodes[2], (&nodes[1], chan_b), 1_000), - 0x2f => send_payment!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b), 1_000), - 0x30 => send_payment!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a), 1_000), - 0x31 => send_payment!(nodes[0], (&nodes[1], chan_a), 100_000), - 0x32 => send_payment!(nodes[1], (&nodes[0], chan_a), 100_000), - 0x33 => send_payment!(nodes[1], (&nodes[2], chan_b), 100_000), - 0x34 => send_payment!(nodes[2], (&nodes[1], chan_b), 100_000), - 0x35 => send_payment!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b), 100_000), - 0x36 => send_payment!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a), 100_000), - // 0x24 defined above + + // 1/10th the channel size: + 0x20 => { send_payment(&nodes[0], &nodes[1], chan_a, 10_000_000, &mut payment_id); }, + 0x21 => { send_payment(&nodes[1], &nodes[0], chan_a, 10_000_000, &mut payment_id); }, + 0x22 => { send_payment(&nodes[1], &nodes[2], chan_b, 10_000_000, &mut payment_id); }, + 0x23 => { send_payment(&nodes[2], &nodes[1], chan_b, 10_000_000, &mut payment_id); }, + 0x24 => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 10_000_000, &mut payment_id); }, + 0x25 => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 10_000_000, &mut payment_id); }, + + 0x26 => { send_payment_with_secret!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b)); }, + 0x27 => { send_payment_with_secret!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a)); }, + + 0x28 => { send_payment(&nodes[0], &nodes[1], chan_a, 1_000_000, &mut payment_id); }, + 0x29 => { send_payment(&nodes[1], &nodes[0], chan_a, 1_000_000, &mut payment_id); }, + 0x2a => { send_payment(&nodes[1], &nodes[2], chan_b, 1_000_000, &mut payment_id); }, + 0x2b => { send_payment(&nodes[2], &nodes[1], chan_b, 1_000_000, &mut payment_id); }, + 0x2c => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 1_000_000, &mut payment_id); }, + 0x2d => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 1_000_000, &mut payment_id); }, + + 0x30 => { send_payment(&nodes[0], &nodes[1], chan_a, 100_000, &mut payment_id); }, + 0x31 => { send_payment(&nodes[1], &nodes[0], chan_a, 100_000, &mut payment_id); }, + 0x32 => { send_payment(&nodes[1], &nodes[2], chan_b, 100_000, &mut payment_id); }, + 0x33 => { send_payment(&nodes[2], &nodes[1], chan_b, 100_000, &mut payment_id); }, + 0x34 => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 100_000, &mut payment_id); }, + 0x35 => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 100_000, &mut payment_id); }, + + 0x38 => { send_payment(&nodes[0], &nodes[1], chan_a, 10_000, &mut payment_id); }, + 0x39 => { send_payment(&nodes[1], &nodes[0], chan_a, 10_000, &mut payment_id); }, + 0x3a => { send_payment(&nodes[1], &nodes[2], chan_b, 10_000, &mut payment_id); }, + 0x3b => { send_payment(&nodes[2], &nodes[1], chan_b, 10_000, &mut payment_id); }, + 0x3c => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 10_000, &mut payment_id); }, + 0x3d => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 10_000, &mut payment_id); }, + + 0x40 => { send_payment(&nodes[0], &nodes[1], chan_a, 1_000, &mut payment_id); }, + 0x41 => { send_payment(&nodes[1], &nodes[0], chan_a, 1_000, &mut payment_id); }, + 0x42 => { send_payment(&nodes[1], &nodes[2], chan_b, 1_000, &mut payment_id); }, + 0x43 => { send_payment(&nodes[2], &nodes[1], chan_b, 1_000, &mut payment_id); }, + 0x44 => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 1_000, &mut payment_id); }, + 0x45 => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 1_000, &mut payment_id); }, + + 0x48 => { send_payment(&nodes[0], &nodes[1], chan_a, 100, &mut payment_id); }, + 0x49 => { send_payment(&nodes[1], &nodes[0], chan_a, 100, &mut payment_id); }, + 0x4a => { send_payment(&nodes[1], &nodes[2], chan_b, 100, &mut payment_id); }, + 0x4b => { send_payment(&nodes[2], &nodes[1], chan_b, 100, &mut payment_id); }, + 0x4c => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 100, &mut payment_id); }, + 0x4d => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 100, &mut payment_id); }, + + 0x50 => { send_payment(&nodes[0], &nodes[1], chan_a, 10, &mut payment_id); }, + 0x51 => { send_payment(&nodes[1], &nodes[0], chan_a, 10, &mut payment_id); }, + 0x52 => { send_payment(&nodes[1], &nodes[2], chan_b, 10, &mut payment_id); }, + 0x53 => { send_payment(&nodes[2], &nodes[1], chan_b, 10, &mut payment_id); }, + 0x54 => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 10, &mut payment_id); }, + 0x55 => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 10, &mut payment_id); }, + + 0x58 => { send_payment(&nodes[0], &nodes[1], chan_a, 1, &mut payment_id); }, + 0x59 => { send_payment(&nodes[1], &nodes[0], chan_a, 1, &mut payment_id); }, + 0x5a => { send_payment(&nodes[1], &nodes[2], chan_b, 1, &mut payment_id); }, + 0x5b => { send_payment(&nodes[2], &nodes[1], chan_b, 1, &mut payment_id); }, + 0x5c => { send_hop_payment(&nodes[0], &nodes[1], chan_a, &nodes[2], chan_b, 1, &mut payment_id); }, + 0x5d => { send_hop_payment(&nodes[2], &nodes[1], chan_b, &nodes[0], chan_a, 1, &mut payment_id); }, + + 0xff => { + // Test that no channel is in a stuck state where neither party can send funds even + // after we resolve all pending events. + // First make sure there are no pending monitor updates, resetting the error state + // and calling channel_monitor_updated for each monitor. + *monitor_a.update_ret.lock().unwrap() = Ok(()); + *monitor_b.update_ret.lock().unwrap() = Ok(()); + *monitor_c.update_ret.lock().unwrap() = Ok(()); + + if let Some((id, _)) = monitor_a.latest_monitors.lock().unwrap().get(&chan_1_funding) { + nodes[0].channel_monitor_updated(&chan_1_funding, *id); + } + if let Some((id, _)) = monitor_b.latest_monitors.lock().unwrap().get(&chan_1_funding) { + nodes[1].channel_monitor_updated(&chan_1_funding, *id); + } + if let Some((id, _)) = monitor_b.latest_monitors.lock().unwrap().get(&chan_2_funding) { + nodes[1].channel_monitor_updated(&chan_2_funding, *id); + } + if let Some((id, _)) = monitor_c.latest_monitors.lock().unwrap().get(&chan_2_funding) { + nodes[2].channel_monitor_updated(&chan_2_funding, *id); + } + + // Next, make sure peers are all connected to each other + if chan_a_disconnected { + nodes[0].peer_connected(&nodes[1].get_our_node_id(), &Init { features: InitFeatures::empty() }); + nodes[1].peer_connected(&nodes[0].get_our_node_id(), &Init { features: InitFeatures::empty() }); + chan_a_disconnected = false; + } + if chan_b_disconnected { + nodes[1].peer_connected(&nodes[2].get_our_node_id(), &Init { features: InitFeatures::empty() }); + nodes[2].peer_connected(&nodes[1].get_our_node_id(), &Init { features: InitFeatures::empty() }); + chan_b_disconnected = false; + } + + for i in 0..std::usize::MAX { + if i == 100 { panic!("It may take may iterations to settle the state, but it should not take forever"); } + // Then, make sure any current forwards make their way to their destination + if process_msg_events!(0, false) { continue; } + if process_msg_events!(1, false) { continue; } + if process_msg_events!(2, false) { continue; } + // ...making sure any pending PendingHTLCsForwardable events are handled and + // payments claimed. + if process_events!(0, false) { continue; } + if process_events!(1, false) { continue; } + if process_events!(2, false) { continue; } + break; + } + + // Finally, make sure that at least one end of each channel can make a substantial payment. + assert!( + send_payment(&nodes[0], &nodes[1], chan_a, 10_000_000, &mut payment_id) || + send_payment(&nodes[1], &nodes[0], chan_a, 10_000_000, &mut payment_id)); + assert!( + send_payment(&nodes[1], &nodes[2], chan_b, 10_000_000, &mut payment_id) || + send_payment(&nodes[2], &nodes[1], chan_b, 10_000_000, &mut payment_id)); + }, _ => test_return!(), }