--- /dev/null
+//! 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
+//! commitment_signed messages having "invalid signatures".
+//! To test this we stand up a network of three nodes and read bytes from the fuzz input to denote
+//! actions such as sending payments, handling events, or changing monitor update return values on
+//! a per-node basis. This should allow it to find any cases where the ordering of actions results
+//! in us getting out of sync with ourselves, and, assuming at least one of our recieve- or
+//! send-side handling is correct, other peers. We consider it a failure if any action results in a
+//! channel being force-closed.
+
+//Uncomment this for libfuzzer builds:
+//#![no_main]
+
+extern crate bitcoin;
+extern crate bitcoin_hashes;
+extern crate lightning;
+extern crate secp256k1;
+
+use bitcoin::BitcoinHash;
+use bitcoin::blockdata::block::BlockHeader;
+use bitcoin::blockdata::transaction::{Transaction, TxOut};
+use bitcoin::blockdata::script::{Builder, Script};
+use bitcoin::blockdata::opcodes;
+use bitcoin::network::constants::Network;
+
+use bitcoin_hashes::Hash as TraitImport;
+use bitcoin_hashes::hash160::Hash as Hash160;
+use bitcoin_hashes::sha256::Hash as Sha256;
+use bitcoin_hashes::sha256d::Hash as Sha256d;
+
+use lightning::chain::chaininterface;
+use lightning::chain::transaction::OutPoint;
+use lightning::chain::chaininterface::{BroadcasterInterface,ConfirmationTarget,ChainListener,FeeEstimator,ChainWatchInterfaceUtil};
+use lightning::chain::keysinterface::{ChannelKeys, KeysInterface};
+use lightning::ln::channelmonitor;
+use lightning::ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, HTLCUpdate};
+use lightning::ln::channelmanager::{ChannelManager, PaymentHash, PaymentPreimage, ChannelManagerReadArgs};
+use lightning::ln::router::{Route, RouteHop};
+use lightning::ln::msgs::{CommitmentUpdate, ChannelMessageHandler, ErrorAction, HandleError, UpdateAddHTLC, LocalFeatures};
+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};
+
+mod utils;
+use utils::test_logger;
+
+use secp256k1::key::{PublicKey,SecretKey};
+use secp256k1::Secp256k1;
+
+use std::mem;
+use std::cmp::Ordering;
+use std::collections::{HashSet, hash_map, HashMap};
+use std::sync::{Arc,Mutex};
+use std::sync::atomic;
+use std::io::Cursor;
+
+struct FuzzEstimator {}
+impl FeeEstimator for FuzzEstimator {
+ fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 {
+ 253
+ }
+}
+
+pub struct TestBroadcaster {}
+impl BroadcasterInterface for TestBroadcaster {
+ fn broadcast_transaction(&self, _tx: &Transaction) { }
+}
+
+pub struct VecWriter(pub Vec<u8>);
+impl Writer for VecWriter {
+ fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
+ self.0.extend_from_slice(buf);
+ Ok(())
+ }
+ fn size_hint(&mut self, size: usize) {
+ self.0.reserve_exact(size);
+ }
+}
+
+static mut IN_RESTORE: bool = false;
+pub struct TestChannelMonitor {
+ pub simple_monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>,
+ pub update_ret: Mutex<Result<(), channelmonitor::ChannelMonitorUpdateErr>>,
+ pub latest_good_update: Mutex<HashMap<OutPoint, Vec<u8>>>,
+ pub latest_update_good: Mutex<HashMap<OutPoint, bool>>,
+ pub latest_updates_good_at_last_ser: Mutex<HashMap<OutPoint, bool>>,
+ pub should_update_manager: atomic::AtomicBool,
+}
+impl TestChannelMonitor {
+ pub fn new(chain_monitor: Arc<chaininterface::ChainWatchInterface>, broadcaster: Arc<chaininterface::BroadcasterInterface>, logger: Arc<Logger>, feeest: Arc<chaininterface::FeeEstimator>) -> Self {
+ Self {
+ simple_monitor: channelmonitor::SimpleManyChannelMonitor::new(chain_monitor, broadcaster, logger, feeest),
+ update_ret: Mutex::new(Ok(())),
+ latest_good_update: Mutex::new(HashMap::new()),
+ latest_update_good: Mutex::new(HashMap::new()),
+ latest_updates_good_at_last_ser: Mutex::new(HashMap::new()),
+ should_update_manager: atomic::AtomicBool::new(false),
+ }
+ }
+}
+impl channelmonitor::ManyChannelMonitor for TestChannelMonitor {
+ fn add_update_monitor(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
+ let ret = self.update_ret.lock().unwrap().clone();
+ if let Ok(()) = ret {
+ let mut ser = VecWriter(Vec::new());
+ monitor.write_for_disk(&mut ser).unwrap();
+ self.latest_good_update.lock().unwrap().insert(funding_txo, ser.0);
+ match self.latest_update_good.lock().unwrap().entry(funding_txo) {
+ hash_map::Entry::Vacant(mut e) => { e.insert(true); },
+ hash_map::Entry::Occupied(mut e) => {
+ if !e.get() && unsafe { IN_RESTORE } {
+ // Technically we can't consider an update to be "good" unless we're doing
+ // it in response to a test_restore_channel_monitor as the channel may
+ // still be waiting on such a call, so only set us to good if we're in the
+ // middle of a restore call.
+ e.insert(true);
+ }
+ },
+ }
+ self.should_update_manager.store(true, atomic::Ordering::Relaxed);
+ } else {
+ self.latest_update_good.lock().unwrap().insert(funding_txo, false);
+ }
+ assert!(self.simple_monitor.add_update_monitor(funding_txo, monitor).is_ok());
+ ret
+ }
+
+ fn fetch_pending_htlc_updated(&self) -> Vec<HTLCUpdate> {
+ return self.simple_monitor.fetch_pending_htlc_updated();
+ }
+}
+
+struct KeyProvider {
+ node_id: u8,
+ session_id: atomic::AtomicU8,
+ channel_id: atomic::AtomicU8,
+}
+impl KeysInterface for KeyProvider {
+ 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()
+ }
+
+ fn get_destination_script(&self) -> Script {
+ let secp_ctx = Secp256k1::signing_only();
+ let channel_monitor_claim_key = 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, 2, self.node_id]).unwrap();
+ let our_channel_monitor_claim_key_hash = Hash160::hash(&PublicKey::from_secret_key(&secp_ctx, &channel_monitor_claim_key).serialize());
+ Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&our_channel_monitor_claim_key_hash[..]).into_script()
+ }
+
+ fn get_shutdown_pubkey(&self) -> PublicKey {
+ let secp_ctx = Secp256k1::signing_only();
+ 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) -> ChannelKeys {
+ ChannelKeys {
+ funding_key: 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(),
+ revocation_base_key: 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(),
+ payment_base_key: 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(),
+ delayed_payment_base_key: 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(),
+ htlc_base_key: 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(),
+ commitment_seed: [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],
+ }
+ }
+
+ fn get_session_key(&self) -> SecretKey {
+ 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()
+ }
+
+ 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]
+ }
+}
+
+#[inline]
+pub fn do_test(data: &[u8]) {
+ let fee_est = Arc::new(FuzzEstimator{});
+ let broadcast = Arc::new(TestBroadcaster{});
+
+ macro_rules! make_node {
+ ($node_id: expr) => { {
+ let logger: Arc<Logger> = Arc::new(test_logger::TestLogger::new($node_id.to_string()));
+ let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
+ let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone()));
+
+ let keys_manager = Arc::new(KeyProvider { node_id: $node_id, session_id: atomic::AtomicU8::new(0), channel_id: atomic::AtomicU8::new(0) });
+ let mut config = UserConfig::new();
+ config.channel_options.fee_proportional_millionths = 0;
+ config.channel_options.announced_channel = true;
+ config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
+ (ChannelManager::new(Network::Bitcoin, fee_est.clone(), monitor.clone(), watch.clone(), broadcast.clone(), Arc::clone(&logger), keys_manager.clone(), config).unwrap(),
+ monitor)
+ } }
+ }
+
+ macro_rules! reload_node {
+ ($ser: expr, $node_id: expr, $old_monitors: expr) => { {
+ let logger: Arc<Logger> = Arc::new(test_logger::TestLogger::new($node_id.to_string()));
+ let watch = Arc::new(ChainWatchInterfaceUtil::new(Network::Bitcoin, Arc::clone(&logger)));
+ let monitor = Arc::new(TestChannelMonitor::new(watch.clone(), broadcast.clone(), logger.clone(), fee_est.clone()));
+
+ 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::new();
+ config.channel_options.fee_proportional_millionths = 0;
+ config.channel_options.announced_channel = true;
+ config.peer_channel_config_limits.min_dust_limit_satoshis = 0;
+
+ let mut monitors = HashMap::new();
+ let mut old_monitors = $old_monitors.latest_good_update.lock().unwrap();
+ for (outpoint, monitor_ser) in old_monitors.drain() {
+ monitors.insert(outpoint, <(Sha256d, ChannelMonitor)>::read(&mut Cursor::new(&monitor_ser), Arc::clone(&logger)).expect("Failed to read monitor").1);
+ monitor.latest_good_update.lock().unwrap().insert(outpoint, monitor_ser);
+ }
+ let mut monitor_refs = HashMap::new();
+ for (outpoint, monitor) in monitors.iter() {
+ monitor_refs.insert(*outpoint, monitor);
+ }
+
+ let read_args = ChannelManagerReadArgs {
+ keys_manager,
+ fee_estimator: fee_est.clone(),
+ monitor: monitor.clone(),
+ chain_monitor: watch,
+ tx_broadcaster: broadcast.clone(),
+ logger,
+ default_config: config,
+ channel_monitors: &monitor_refs,
+ };
+
+ let res = (<(Sha256d, ChannelManager)>::read(&mut Cursor::new(&$ser.0), read_args).expect("Failed to read manager").1, monitor);
+ for (_, was_good) in $old_monitors.latest_updates_good_at_last_ser.lock().unwrap().iter() {
+ if !was_good {
+ // If the last time we updated a monitor we didn't successfully update (and we
+ // have sense updated our serialized copy of the ChannelManager) we may
+ // force-close the channel on our counterparty cause we know we're missing
+ // something. Thus, we just return here since we can't continue to test.
+ return;
+ }
+ }
+ res
+ } }
+ }
+
+
+ let mut channel_txn = Vec::new();
+ macro_rules! make_channel {
+ ($source: expr, $dest: expr, $chan_id: expr) => { {
+ $source.create_channel($dest.get_our_node_id(), 10000000, 42, 0).unwrap();
+ let open_channel = {
+ let events = $source.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ if let events::MessageSendEvent::SendOpenChannel { ref msg, .. } = events[0] {
+ msg.clone()
+ } else { panic!("Wrong event type"); }
+ };
+
+ $dest.handle_open_channel(&$source.get_our_node_id(), LocalFeatures::new(), &open_channel).unwrap();
+ let accept_channel = {
+ let events = $dest.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ if let events::MessageSendEvent::SendAcceptChannel { ref msg, .. } = events[0] {
+ msg.clone()
+ } else { panic!("Wrong event type"); }
+ };
+
+ $source.handle_accept_channel(&$dest.get_our_node_id(), LocalFeatures::new(), &accept_channel).unwrap();
+ {
+ let events = $source.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ if let events::Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, .. } = events[0] {
+ let tx = Transaction { version: $chan_id, lock_time: 0, input: Vec::new(), output: vec![TxOut {
+ value: *channel_value_satoshis, script_pubkey: output_script.clone(),
+ }]};
+ let funding_output = OutPoint::new(tx.txid(), 0);
+ $source.funding_transaction_generated(&temporary_channel_id, funding_output);
+ channel_txn.push(tx);
+ } else { panic!("Wrong event type"); }
+ }
+
+ let funding_created = {
+ let events = $source.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ if let events::MessageSendEvent::SendFundingCreated { ref msg, .. } = events[0] {
+ msg.clone()
+ } else { panic!("Wrong event type"); }
+ };
+ $dest.handle_funding_created(&$source.get_our_node_id(), &funding_created).unwrap();
+
+ let funding_signed = {
+ let events = $dest.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ if let events::MessageSendEvent::SendFundingSigned { ref msg, .. } = events[0] {
+ msg.clone()
+ } else { panic!("Wrong event type"); }
+ };
+ $source.handle_funding_signed(&$dest.get_our_node_id(), &funding_signed).unwrap();
+
+ {
+ let events = $source.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ if let events::Event::FundingBroadcastSafe { .. } = events[0] {
+ } else { panic!("Wrong event type"); }
+ }
+ } }
+ }
+
+ macro_rules! confirm_txn {
+ ($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);
+ for i in 2..100 {
+ header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ $node.block_connected(&header, i, &Vec::new(), &[0; 0]);
+ }
+ } }
+ }
+
+ macro_rules! lock_fundings {
+ ($nodes: expr) => { {
+ let mut node_events = Vec::new();
+ for node in $nodes.iter() {
+ node_events.push(node.get_and_clear_pending_msg_events());
+ }
+ for (idx, node_event) in node_events.iter().enumerate() {
+ for event in node_event {
+ if let events::MessageSendEvent::SendFundingLocked { ref node_id, ref msg } = event {
+ for node in $nodes.iter() {
+ if node.get_our_node_id() == *node_id {
+ node.handle_funding_locked(&$nodes[idx].get_our_node_id(), msg).unwrap();
+ }
+ }
+ } else { panic!("Wrong event type"); }
+ }
+ }
+
+ for node in $nodes.iter() {
+ let events = node.get_and_clear_pending_msg_events();
+ for event in events {
+ if let events::MessageSendEvent::SendAnnouncementSignatures { .. } = event {
+ } else { panic!("Wrong event type"); }
+ }
+ }
+ } }
+ }
+
+ // 3 nodes is enough to hit all the possible cases, notably unknown-source-unknown-dest
+ // forwarding.
+ let (mut node_a, mut monitor_a) = make_node!(0);
+ let (mut node_b, mut monitor_b) = make_node!(1);
+ let (mut node_c, mut monitor_c) = make_node!(2);
+
+ let mut nodes = [node_a, node_b, node_c];
+
+ make_channel!(nodes[0], nodes[1], 0);
+ make_channel!(nodes[1], nodes[2], 1);
+
+ for node in nodes.iter() {
+ confirm_txn!(node);
+ }
+
+ lock_fundings!(nodes);
+
+ let chan_a = nodes[0].list_usable_channels()[0].short_channel_id.unwrap();
+ let chan_b = nodes[2].list_usable_channels()[0].short_channel_id.unwrap();
+
+ let mut payment_id = 0;
+
+ let mut chan_a_disconnected = false;
+ let mut chan_b_disconnected = false;
+ let mut ba_events = Vec::new();
+ let mut bc_events = Vec::new();
+
+ let mut node_a_ser = VecWriter(Vec::new());
+ nodes[0].write(&mut node_a_ser).unwrap();
+ let mut node_b_ser = VecWriter(Vec::new());
+ nodes[1].write(&mut node_b_ser).unwrap();
+ let mut node_c_ser = VecWriter(Vec::new());
+ nodes[2].write(&mut node_c_ser).unwrap();
+
+ macro_rules! test_err {
+ ($res: expr) => {
+ match $res {
+ Ok(()) => {},
+ Err(HandleError { action: Some(ErrorAction::IgnoreError), .. }) => { },
+ _ => { $res.unwrap() },
+ }
+ }
+ }
+
+ macro_rules! test_return {
+ () => { {
+ assert_eq!(nodes[0].list_channels().len(), 1);
+ assert_eq!(nodes[1].list_channels().len(), 2);
+ assert_eq!(nodes[2].list_channels().len(), 1);
+ return;
+ } }
+ }
+
+ let mut read_pos = 0;
+ macro_rules! get_slice {
+ ($len: expr) => {
+ {
+ let slice_len = $len as usize;
+ if data.len() < read_pos + slice_len {
+ test_return!();
+ }
+ read_pos += slice_len;
+ &data[read_pos - slice_len..read_pos]
+ }
+ }
+ }
+
+ loop {
+ macro_rules! send_payment {
+ ($source: expr, $dest: expr) => { {
+ let payment_hash = Sha256::hash(&[payment_id; 1]);
+ payment_id = payment_id.wrapping_add(1);
+ if let Err(_) = $source.send_payment(Route {
+ hops: vec![RouteHop {
+ pubkey: $dest.0.get_our_node_id(),
+ short_channel_id: $dest.1,
+ fee_msat: 5000000,
+ cltv_expiry_delta: 200,
+ }],
+ }, PaymentHash(payment_hash.into_inner())) {
+ // Probably ran out of funds
+ test_return!();
+ }
+ } };
+ ($source: expr, $middle: expr, $dest: expr) => { {
+ let payment_hash = Sha256::hash(&[payment_id; 1]);
+ payment_id = payment_id.wrapping_add(1);
+ if let Err(_) = $source.send_payment(Route {
+ hops: vec![RouteHop {
+ pubkey: $middle.0.get_our_node_id(),
+ short_channel_id: $middle.1,
+ fee_msat: 50000,
+ cltv_expiry_delta: 100,
+ },RouteHop {
+ pubkey: $dest.0.get_our_node_id(),
+ short_channel_id: $dest.1,
+ fee_msat: 5000000,
+ cltv_expiry_delta: 200,
+ }],
+ }, PaymentHash(payment_hash.into_inner())) {
+ // Probably ran out of funds
+ test_return!();
+ }
+ } }
+ }
+
+ macro_rules! process_msg_events {
+ ($node: expr, $corrupt_forward: expr) => { {
+ let events = if $node == 1 {
+ let mut new_events = Vec::new();
+ mem::swap(&mut new_events, &mut ba_events);
+ new_events.extend_from_slice(&bc_events[..]);
+ bc_events.clear();
+ new_events
+ } else { Vec::new() };
+ for event in events.iter().chain(nodes[$node].get_and_clear_pending_msg_events().iter()) {
+ 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() {
+ if dest.get_our_node_id() == *node_id {
+ assert!(update_fee.is_none());
+ for update_add in update_add_htlcs {
+ if !$corrupt_forward {
+ test_err!(dest.handle_update_add_htlc(&nodes[$node].get_our_node_id(), &update_add));
+ } else {
+ // Corrupt the update_add_htlc message so that its HMAC
+ // check will fail and we generate a
+ // update_fail_malformed_htlc instead of an
+ // update_fail_htlc as we do when we reject a payment.
+ let mut msg_ser = update_add.encode();
+ msg_ser[1000] ^= 0xff;
+ let new_msg = UpdateAddHTLC::read(&mut Cursor::new(&msg_ser)).unwrap();
+ test_err!(dest.handle_update_add_htlc(&nodes[$node].get_our_node_id(), &new_msg));
+ }
+ }
+ for update_fulfill in update_fulfill_htlcs {
+ test_err!(dest.handle_update_fulfill_htlc(&nodes[$node].get_our_node_id(), &update_fulfill));
+ }
+ for update_fail in update_fail_htlcs {
+ test_err!(dest.handle_update_fail_htlc(&nodes[$node].get_our_node_id(), &update_fail));
+ }
+ for update_fail_malformed in update_fail_malformed_htlcs {
+ test_err!(dest.handle_update_fail_malformed_htlc(&nodes[$node].get_our_node_id(), &update_fail_malformed));
+ }
+ test_err!(dest.handle_commitment_signed(&nodes[$node].get_our_node_id(), &commitment_signed));
+ }
+ }
+ },
+ events::MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
+ for dest in nodes.iter() {
+ if dest.get_our_node_id() == *node_id {
+ test_err!(dest.handle_revoke_and_ack(&nodes[$node].get_our_node_id(), msg));
+ }
+ }
+ },
+ events::MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } => {
+ for dest in nodes.iter() {
+ if dest.get_our_node_id() == *node_id {
+ test_err!(dest.handle_channel_reestablish(&nodes[$node].get_our_node_id(), msg));
+ }
+ }
+ },
+ events::MessageSendEvent::SendFundingLocked { .. } => {
+ // Can be generated as a reestablish response
+ },
+ events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {
+ // Can be generated due to a payment forward being rejected due to a
+ // channel having previously failed a monitor update
+ },
+ _ => panic!("Unhandled message event"),
+ }
+ }
+ } }
+ }
+
+ macro_rules! drain_msg_events_on_disconnect {
+ ($counterparty_id: expr) => { {
+ if $counterparty_id == 0 {
+ for event in nodes[0].get_and_clear_pending_msg_events() {
+ match event {
+ events::MessageSendEvent::UpdateHTLCs { .. } => {},
+ events::MessageSendEvent::SendRevokeAndACK { .. } => {},
+ events::MessageSendEvent::SendChannelReestablish { .. } => {},
+ events::MessageSendEvent::SendFundingLocked { .. } => {},
+ events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
+ _ => panic!("Unhandled message event"),
+ }
+ }
+ ba_events.clear();
+ } else {
+ for event in nodes[2].get_and_clear_pending_msg_events() {
+ match event {
+ events::MessageSendEvent::UpdateHTLCs { .. } => {},
+ events::MessageSendEvent::SendRevokeAndACK { .. } => {},
+ events::MessageSendEvent::SendChannelReestablish { .. } => {},
+ events::MessageSendEvent::SendFundingLocked { .. } => {},
+ events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
+ _ => panic!("Unhandled message event"),
+ }
+ }
+ bc_events.clear();
+ }
+ let mut events = nodes[1].get_and_clear_pending_msg_events();
+ let drop_node_id = if $counterparty_id == 0 { nodes[0].get_our_node_id() } else { nodes[2].get_our_node_id() };
+ let msg_sink = if $counterparty_id == 0 { &mut bc_events } else { &mut ba_events };
+ for event in events.drain(..) {
+ let push = match event {
+ events::MessageSendEvent::UpdateHTLCs { ref node_id, .. } => {
+ if *node_id != drop_node_id { true } else { false }
+ },
+ events::MessageSendEvent::SendRevokeAndACK { ref node_id, .. } => {
+ if *node_id != drop_node_id { true } else { false }
+ },
+ events::MessageSendEvent::SendChannelReestablish { ref node_id, .. } => {
+ if *node_id != drop_node_id { true } else { false }
+ },
+ events::MessageSendEvent::SendFundingLocked { .. } => false,
+ events::MessageSendEvent::PaymentFailureNetworkUpdate { .. } => false,
+ _ => panic!("Unhandled message event"),
+ };
+ if push { msg_sink.push(event); }
+ }
+ } }
+ }
+
+ macro_rules! process_events {
+ ($node: expr, $fail: expr) => { {
+ // In case we get 256 payments we may have a hash collision, resulting in the
+ // second claim/fail call not finding the duplicate-hash HTLC, so we have to
+ // deduplicate the calls here.
+ let mut claim_set = HashSet::new();
+ let mut events = nodes[$node].get_and_clear_pending_events();
+ // Sort events so that PendingHTLCsForwardable get processed last. This avoids a
+ // case where we first process a PendingHTLCsForwardable, then claim/fail on a
+ // PaymentReceived, claiming/failing two HTLCs, but leaving a just-generated
+ // PaymentReceived event for the second HTLC in our pending_events (and breaking
+ // our claim_set deduplication).
+ events.sort_by(|a, b| {
+ if let events::Event::PaymentReceived { .. } = a {
+ if let events::Event::PendingHTLCsForwardable { .. } = b {
+ Ordering::Less
+ } else { Ordering::Equal }
+ } else if let events::Event::PendingHTLCsForwardable { .. } = a {
+ if let events::Event::PaymentReceived { .. } = b {
+ Ordering::Greater
+ } else { Ordering::Equal }
+ } else { Ordering::Equal }
+ });
+ for event in events.drain(..) {
+ match event {
+ events::Event::PaymentReceived { payment_hash, .. } => {
+ if claim_set.insert(payment_hash.0) {
+ if $fail {
+ assert!(nodes[$node].fail_htlc_backwards(&payment_hash));
+ } else {
+ assert!(nodes[$node].claim_funds(PaymentPreimage(payment_hash.0)));
+ }
+ }
+ },
+ events::Event::PaymentSent { .. } => {},
+ events::Event::PaymentFailed { .. } => {},
+ events::Event::PendingHTLCsForwardable { .. } => {
+ nodes[$node].process_pending_htlc_forwards();
+ },
+ _ => panic!("Unhandled event"),
+ }
+ }
+ } }
+ }
+
+ match get_slice!(1)[0] {
+ 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 => { unsafe { IN_RESTORE = true }; nodes[0].test_restore_channel_monitor(); unsafe { IN_RESTORE = false }; },
+ 0x07 => { unsafe { IN_RESTORE = true }; nodes[1].test_restore_channel_monitor(); unsafe { IN_RESTORE = false }; },
+ 0x08 => { unsafe { IN_RESTORE = true }; nodes[2].test_restore_channel_monitor(); unsafe { IN_RESTORE = false }; },
+ 0x09 => send_payment!(nodes[0], (&nodes[1], chan_a)),
+ 0x0a => send_payment!(nodes[1], (&nodes[0], chan_a)),
+ 0x0b => send_payment!(nodes[1], (&nodes[2], chan_b)),
+ 0x0c => send_payment!(nodes[2], (&nodes[1], chan_b)),
+ 0x0d => send_payment!(nodes[0], (&nodes[1], chan_a), (&nodes[2], chan_b)),
+ 0x0e => send_payment!(nodes[2], (&nodes[1], chan_b), (&nodes[0], chan_a)),
+ 0x0f => {
+ 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);
+ chan_a_disconnected = true;
+ drain_msg_events_on_disconnect!(0);
+ }
+ },
+ 0x10 => {
+ 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);
+ chan_b_disconnected = true;
+ drain_msg_events_on_disconnect!(2);
+ }
+ },
+ 0x11 => {
+ if chan_a_disconnected {
+ nodes[0].peer_connected(&nodes[1].get_our_node_id());
+ nodes[1].peer_connected(&nodes[0].get_our_node_id());
+ chan_a_disconnected = false;
+ }
+ },
+ 0x12 => {
+ if chan_b_disconnected {
+ nodes[1].peer_connected(&nodes[2].get_our_node_id());
+ nodes[2].peer_connected(&nodes[1].get_our_node_id());
+ 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 => {
+ 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();
+ monitor_a = new_monitor_a;
+ },
+ 0x20 => {
+ if !chan_a_disconnected {
+ nodes[0].peer_disconnected(&nodes[1].get_our_node_id(), false);
+ chan_a_disconnected = true;
+ nodes[0].get_and_clear_pending_msg_events();
+ ba_events.clear();
+ }
+ if !chan_b_disconnected {
+ nodes[2].peer_disconnected(&nodes[1].get_our_node_id(), false);
+ chan_b_disconnected = true;
+ 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();
+ monitor_b = new_monitor_b;
+ },
+ 0x21 => {
+ 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();
+ monitor_c = new_monitor_c;
+ },
+ _ => test_return!(),
+ }
+
+ if monitor_a.should_update_manager.load(atomic::Ordering::Relaxed) {
+ node_a_ser.0.clear();
+ nodes[0].write(&mut node_a_ser).unwrap();
+ monitor_a.should_update_manager.store(false, atomic::Ordering::Relaxed);
+ *monitor_a.latest_updates_good_at_last_ser.lock().unwrap() = monitor_a.latest_update_good.lock().unwrap().clone();
+ }
+ if monitor_b.should_update_manager.load(atomic::Ordering::Relaxed) {
+ node_b_ser.0.clear();
+ nodes[1].write(&mut node_b_ser).unwrap();
+ monitor_b.should_update_manager.store(false, atomic::Ordering::Relaxed);
+ *monitor_b.latest_updates_good_at_last_ser.lock().unwrap() = monitor_b.latest_update_good.lock().unwrap().clone();
+ }
+ if monitor_c.should_update_manager.load(atomic::Ordering::Relaxed) {
+ node_c_ser.0.clear();
+ nodes[2].write(&mut node_c_ser).unwrap();
+ monitor_c.should_update_manager.store(false, atomic::Ordering::Relaxed);
+ *monitor_c.latest_updates_good_at_last_ser.lock().unwrap() = monitor_c.latest_update_good.lock().unwrap().clone();
+ }
+ }
+}
+
+#[cfg(feature = "afl")]
+#[macro_use] extern crate afl;
+#[cfg(feature = "afl")]
+fn main() {
+ fuzz!(|data| {
+ do_test(data);
+ });
+}
+
+#[cfg(feature = "honggfuzz")]
+#[macro_use] extern crate honggfuzz;
+#[cfg(feature = "honggfuzz")]
+fn main() {
+ loop {
+ fuzz!(|data| {
+ do_test(data);
+ });
+ }
+}
+
+#[cfg(feature = "libfuzzer_fuzz")]
+#[macro_use] extern crate libfuzzer_sys;
+#[cfg(feature = "libfuzzer_fuzz")]
+fuzz_target!(|data: &[u8]| {
+ do_test(data);
+});
+
+extern crate hex;
+#[cfg(test)]
+mod tests {
+ #[test]
+ fn duplicate_crash() {
+ super::do_test(&::hex::decode("00").unwrap());
+ }
+}
projects / rust-lightning / blobdiff