}
pub(super) use self::channel_held_info::*;
+type ShutdownResult = (Vec<Transaction>, Vec<(HTLCSource, [u8; 32])>);
+
+/// Error type returned across the channel_state mutex boundary. When an Err is generated for a
+/// Channel, we generally end up with a ChannelError::Close for which we have to close the channel
+/// immediately (ie with no further calls on it made). Thus, this step happens inside a
+/// channel_state lock. We then return the set of things that need to be done outside the lock in
+/// this struct and call handle_error!() on it.
struct MsgHandleErrInternal {
err: msgs::HandleError,
- needs_channel_force_close: bool,
+ shutdown_finish: Option<(ShutdownResult, Option<msgs::ChannelUpdate>)>,
}
impl MsgHandleErrInternal {
#[inline]
},
}),
},
- needs_channel_force_close: false,
+ shutdown_finish: None,
}
}
#[inline]
- fn send_err_msg_close_chan(err: &'static str, channel_id: [u8; 32]) -> Self {
+ fn from_no_close(err: msgs::HandleError) -> Self {
+ Self { err, shutdown_finish: None }
+ }
+ #[inline]
+ fn from_finish_shutdown(err: &'static str, channel_id: [u8; 32], shutdown_res: ShutdownResult, channel_update: Option<msgs::ChannelUpdate>) -> Self {
Self {
err: HandleError {
err,
},
}),
},
- needs_channel_force_close: true,
+ shutdown_finish: Some((shutdown_res, channel_update)),
}
}
#[inline]
- fn from_maybe_close(err: msgs::HandleError) -> Self {
- Self { err, needs_channel_force_close: true }
- }
- #[inline]
- fn from_no_close(err: msgs::HandleError) -> Self {
- Self { err, needs_channel_force_close: false }
- }
- #[inline]
fn from_chan_no_close(err: ChannelError, channel_id: [u8; 32]) -> Self {
Self {
err: match err {
}),
},
},
- needs_channel_force_close: false,
- }
- }
- #[inline]
- fn from_chan_maybe_close(err: ChannelError, channel_id: [u8; 32]) -> Self {
- Self {
- err: match err {
- ChannelError::Ignore(msg) => HandleError {
- err: msg,
- action: Some(msgs::ErrorAction::IgnoreError),
- },
- ChannelError::Close(msg) => HandleError {
- err: msg,
- action: Some(msgs::ErrorAction::SendErrorMessage {
- msg: msgs::ErrorMessage {
- channel_id,
- data: msg.to_string()
- },
- }),
- },
- },
- needs_channel_force_close: true,
+ shutdown_finish: None,
}
}
}
pub user_id: u64,
}
+macro_rules! handle_error {
+ ($self: ident, $internal: expr, $their_node_id: expr) => {
+ match $internal {
+ Ok(msg) => Ok(msg),
+ Err(MsgHandleErrInternal { err, shutdown_finish }) => {
+ if let Some((shutdown_res, update_option)) = shutdown_finish {
+ $self.finish_force_close_channel(shutdown_res);
+ if let Some(update) = update_option {
+ let mut channel_state = $self.channel_state.lock().unwrap();
+ channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+ }
+ Err(err)
+ },
+ }
+ }
+}
+
+macro_rules! break_chan_entry {
+ ($self: ident, $res: expr, $channel_state: expr, $entry: expr) => {
+ match $res {
+ Ok(res) => res,
+ Err(ChannelError::Ignore(msg)) => {
+ break Err(MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore(msg), $entry.key().clone()))
+ },
+ Err(ChannelError::Close(msg)) => {
+ let (channel_id, mut chan) = $entry.remove_entry();
+ if let Some(short_id) = chan.get_short_channel_id() {
+ $channel_state.short_to_id.remove(&short_id);
+ }
+ break Err(MsgHandleErrInternal::from_finish_shutdown(msg, channel_id, chan.force_shutdown(), $self.get_channel_update(&chan).ok()))
+ },
+ }
+ }
+}
+
+macro_rules! try_chan_entry {
+ ($self: ident, $res: expr, $channel_state: expr, $entry: expr) => {
+ match $res {
+ Ok(res) => res,
+ Err(ChannelError::Ignore(msg)) => {
+ return Err(MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore(msg), $entry.key().clone()))
+ },
+ Err(ChannelError::Close(msg)) => {
+ let (channel_id, mut chan) = $entry.remove_entry();
+ if let Some(short_id) = chan.get_short_channel_id() {
+ $channel_state.short_to_id.remove(&short_id);
+ }
+ return Err(MsgHandleErrInternal::from_finish_shutdown(msg, channel_id, chan.force_shutdown(), $self.get_channel_update(&chan).ok()))
+ },
+ }
+ }
+}
+
impl ChannelManager {
/// Constructs a new ChannelManager to hold several channels and route between them.
///
}
#[inline]
- fn finish_force_close_channel(&self, shutdown_res: (Vec<Transaction>, Vec<(HTLCSource, [u8; 32])>)) {
+ fn finish_force_close_channel(&self, shutdown_res: ShutdownResult) {
let (local_txn, mut failed_htlcs) = shutdown_res;
for htlc_source in failed_htlcs.drain(..) {
// unknown_next_peer...I dunno who that is anymore....
}
}
- let session_priv = SecretKey::from_slice(&self.secp_ctx, &{
- let mut session_key = [0; 32];
- rng::fill_bytes(&mut session_key);
- session_key
- }).expect("RNG is bad!");
+ let session_priv = self.keys_manager.get_session_key();
let cur_height = self.latest_block_height.load(Ordering::Acquire) as u32 + 1;
let onion_packet = ChannelManager::construct_onion_packet(onion_payloads, onion_keys, &payment_hash);
let _ = self.total_consistency_lock.read().unwrap();
- let mut channel_state = self.channel_state.lock().unwrap();
- let id = match channel_state.short_to_id.get(&route.hops.first().unwrap().short_channel_id) {
- None => return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!"}),
- Some(id) => id.clone(),
- };
+ let err: Result<(), _> = loop {
+ let mut channel_lock = self.channel_state.lock().unwrap();
- let res = {
- let chan = channel_state.by_id.get_mut(&id).unwrap();
- if chan.get_their_node_id() != route.hops.first().unwrap().pubkey {
- return Err(APIError::RouteError{err: "Node ID mismatch on first hop!"});
- }
- if chan.is_awaiting_monitor_update() {
- return Err(APIError::MonitorUpdateFailed);
- }
- if !chan.is_live() {
- return Err(APIError::ChannelUnavailable{err: "Peer for first hop currently disconnected!"});
+ let id = match channel_lock.short_to_id.get(&route.hops.first().unwrap().short_channel_id) {
+ None => return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!"}),
+ Some(id) => id.clone(),
+ };
+
+ match {
+ let channel_state = channel_lock.borrow_parts();
+ if let hash_map::Entry::Occupied(mut chan) = channel_state.by_id.entry(id) {
+ if chan.get().get_their_node_id() != route.hops.first().unwrap().pubkey {
+ return Err(APIError::RouteError{err: "Node ID mismatch on first hop!"});
+ }
+ if chan.get().is_awaiting_monitor_update() {
+ return Err(APIError::MonitorUpdateFailed);
+ }
+ if !chan.get().is_live() {
+ return Err(APIError::ChannelUnavailable{err: "Peer for first hop currently disconnected!"});
+ }
+ break_chan_entry!(self, chan.get_mut().send_htlc_and_commit(htlc_msat, payment_hash.clone(), htlc_cltv, HTLCSource::OutboundRoute {
+ route: route.clone(),
+ session_priv: session_priv.clone(),
+ first_hop_htlc_msat: htlc_msat,
+ }, onion_packet), channel_state, chan)
+ } else { unreachable!(); }
+ } {
+ Some((update_add, commitment_signed, chan_monitor)) => {
+ if let Err(e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ self.handle_monitor_update_fail(channel_lock, &id, e, RAACommitmentOrder::CommitmentFirst);
+ return Err(APIError::MonitorUpdateFailed);
+ }
+
+ channel_lock.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
+ node_id: route.hops.first().unwrap().pubkey,
+ updates: msgs::CommitmentUpdate {
+ update_add_htlcs: vec![update_add],
+ update_fulfill_htlcs: Vec::new(),
+ update_fail_htlcs: Vec::new(),
+ update_fail_malformed_htlcs: Vec::new(),
+ update_fee: None,
+ commitment_signed,
+ },
+ });
+ },
+ None => {},
}
- chan.send_htlc_and_commit(htlc_msat, payment_hash.clone(), htlc_cltv, HTLCSource::OutboundRoute {
- route: route.clone(),
- session_priv: session_priv.clone(),
- first_hop_htlc_msat: htlc_msat,
- }, onion_packet).map_err(|he| APIError::ChannelUnavailable{err: he.err})?
+ return Ok(());
};
- match res {
- Some((update_add, commitment_signed, chan_monitor)) => {
- if let Err(e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
- self.handle_monitor_update_fail(channel_state, &id, e, RAACommitmentOrder::CommitmentFirst);
- return Err(APIError::MonitorUpdateFailed);
- }
- channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
- node_id: route.hops.first().unwrap().pubkey,
- updates: msgs::CommitmentUpdate {
- update_add_htlcs: vec![update_add],
- update_fulfill_htlcs: Vec::new(),
- update_fail_htlcs: Vec::new(),
- update_fail_malformed_htlcs: Vec::new(),
- update_fee: None,
- commitment_signed,
- },
- });
+ match handle_error!(self, err, route.hops.first().unwrap().pubkey) {
+ Ok(_) => unreachable!(),
+ Err(e) => {
+ if let Some(msgs::ErrorAction::IgnoreError) = e.action {
+ } else {
+ log_error!(self, "Got bad keys: {}!", e.err);
+ let mut channel_state = self.channel_state.lock().unwrap();
+ channel_state.pending_msg_events.push(events::MessageSendEvent::HandleError {
+ node_id: route.hops.first().unwrap().pubkey,
+ action: e.action,
+ });
+ }
+ Err(APIError::ChannelUnavailable { err: e.err })
},
- None => {},
}
-
- Ok(())
}
/// Call this upon creation of a funding transaction for the given channel.
let _ = self.total_consistency_lock.read().unwrap();
let (chan, msg, chan_monitor) = {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.remove(temporary_channel_id) {
- Some(mut chan) => {
- match chan.get_outbound_funding_created(funding_txo) {
- Ok(funding_msg) => {
- (chan, funding_msg.0, funding_msg.1)
- },
- Err(e) => {
- log_error!(self, "Got bad signatures: {}!", e.err);
- channel_state.pending_msg_events.push(events::MessageSendEvent::HandleError {
- node_id: chan.get_their_node_id(),
- action: e.action,
- });
- return;
- },
- }
+ let (res, chan) = {
+ let mut channel_state = self.channel_state.lock().unwrap();
+ match channel_state.by_id.remove(temporary_channel_id) {
+ Some(mut chan) => {
+ (chan.get_outbound_funding_created(funding_txo)
+ .map_err(|e| if let ChannelError::Close(msg) = e {
+ MsgHandleErrInternal::from_finish_shutdown(msg, chan.channel_id(), chan.force_shutdown(), None)
+ } else { unreachable!(); })
+ , chan)
+ },
+ None => return
+ }
+ };
+ match handle_error!(self, res, chan.get_their_node_id()) {
+ Ok(funding_msg) => {
+ (chan, funding_msg.0, funding_msg.1)
+ },
+ Err(e) => {
+ log_error!(self, "Got bad signatures: {}!", e.err);
+ let mut channel_state = self.channel_state.lock().unwrap();
+ channel_state.pending_msg_events.push(events::MessageSendEvent::HandleError {
+ node_id: chan.get_their_node_id(),
+ action: e.action,
+ });
+ return;
},
- None => return
}
};
// Because we have exclusive ownership of the channel here we can release the channel_state
let (commitment_msg, monitor) = match forward_chan.send_commitment() {
Ok(res) => res,
Err(e) => {
- if let &Some(msgs::ErrorAction::DisconnectPeer{msg: Some(ref _err_msg)}) = &e.action {
- } else if let &Some(msgs::ErrorAction::SendErrorMessage{msg: ref _err_msg}) = &e.action {
- } else {
+ if let ChannelError::Ignore(_) = e {
panic!("Stated return value requirements in send_commitment() were not met");
}
//TODO: Handle...this is bad!
fn internal_accept_channel(&self, their_node_id: &PublicKey, msg: &msgs::AcceptChannel) -> Result<(), MsgHandleErrInternal> {
let (value, output_script, user_id) = {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.temporary_channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ match channel_state.by_id.entry(msg.temporary_channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: see issue #153, need a consistent behavior on obnoxious behavior from random node
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.temporary_channel_id));
}
- chan.accept_channel(&msg, &self.default_configuration)
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.temporary_channel_id))?;
- (chan.get_value_satoshis(), chan.get_funding_redeemscript().to_v0_p2wsh(), chan.get_user_id())
+ try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration), channel_state, chan);
+ (chan.get().get_value_satoshis(), chan.get().get_funding_redeemscript().to_v0_p2wsh(), chan.get().get_user_id())
},
//TODO: same as above
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.temporary_channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.temporary_channel_id))
}
};
let mut pending_events = self.pending_events.lock().unwrap();
}
fn internal_funding_created(&self, their_node_id: &PublicKey, msg: &msgs::FundingCreated) -> Result<(), MsgHandleErrInternal> {
- let (chan, funding_msg, monitor_update) = {
- let mut channel_state = self.channel_state.lock().unwrap();
+ let ((funding_msg, monitor_update), chan) = {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
match channel_state.by_id.entry(msg.temporary_channel_id.clone()) {
hash_map::Entry::Occupied(mut chan) => {
if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.temporary_channel_id));
}
- match chan.get_mut().funding_created(msg) {
- Ok((funding_msg, monitor_update)) => {
- (chan.remove(), funding_msg, monitor_update)
- },
- Err(e) => {
- return Err(e).map_err(|e| MsgHandleErrInternal::from_maybe_close(e))
- }
- }
+ (try_chan_entry!(self, chan.get_mut().funding_created(msg), channel_state, chan), chan.remove())
},
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.temporary_channel_id))
}
fn internal_funding_signed(&self, their_node_id: &PublicKey, msg: &msgs::FundingSigned) -> Result<(), MsgHandleErrInternal> {
let (funding_txo, user_id) = {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- let chan_monitor = chan.funding_signed(&msg).map_err(|e| MsgHandleErrInternal::from_maybe_close(e))?;
+ let chan_monitor = try_chan_entry!(self, chan.get_mut().funding_signed(&msg), channel_state, chan);
if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
unimplemented!();
}
- (chan.get_funding_txo().unwrap(), chan.get_user_id())
+ (chan.get().get_funding_txo().unwrap(), chan.get().get_user_id())
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
};
let mut pending_events = self.pending_events.lock().unwrap();
fn internal_funding_locked(&self, their_node_id: &PublicKey, msg: &msgs::FundingLocked) -> Result<(), MsgHandleErrInternal> {
let mut channel_state_lock = self.channel_state.lock().unwrap();
let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- chan.funding_locked(&msg)
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))?;
- if let Some(announcement_sigs) = self.get_announcement_sigs(chan) {
+ try_chan_entry!(self, chan.get_mut().funding_locked(&msg), channel_state, chan);
+ if let Some(announcement_sigs) = self.get_announcement_sigs(chan.get()) {
channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
node_id: their_node_id.clone(),
msg: announcement_sigs,
}
Ok(())
},
- None => Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
}
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- let (shutdown, closing_signed, dropped_htlcs) = chan_entry.get_mut().shutdown(&*self.fee_estimator, &msg).map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))?;
+ let (shutdown, closing_signed, dropped_htlcs) = try_chan_entry!(self, chan_entry.get_mut().shutdown(&*self.fee_estimator, &msg), channel_state, chan_entry);
if let Some(msg) = shutdown {
channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
node_id: their_node_id.clone(),
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- let (closing_signed, tx) = chan_entry.get_mut().closing_signed(&*self.fee_estimator, &msg).map_err(|e| MsgHandleErrInternal::from_maybe_close(e))?;
+ let (closing_signed, tx) = try_chan_entry!(self, chan_entry.get_mut().closing_signed(&*self.fee_estimator, &msg), channel_state, chan_entry);
if let Some(msg) = closing_signed {
channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
node_id: their_node_id.clone(),
let (mut pending_forward_info, mut channel_state_lock) = self.decode_update_add_htlc_onion(msg);
let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- if !chan.is_usable() {
+ if !chan.get().is_usable() {
// If the update_add is completely bogus, the call will Err and we will close,
// but if we've sent a shutdown and they haven't acknowledged it yet, we just
// want to reject the new HTLC and fail it backwards instead of forwarding.
if let PendingHTLCStatus::Forward(PendingForwardHTLCInfo { incoming_shared_secret, .. }) = pending_forward_info {
- let chan_update = self.get_channel_update(chan);
+ let chan_update = self.get_channel_update(chan.get());
pending_forward_info = PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msgs::UpdateFailHTLC {
channel_id: msg.channel_id,
htlc_id: msg.htlc_id,
}));
}
}
- chan.update_add_htlc(&msg, pending_forward_info).map_err(|e| MsgHandleErrInternal::from_maybe_close(e))
+ try_chan_entry!(self, chan.get_mut().update_add_htlc(&msg, pending_forward_info), channel_state, chan);
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
+ Ok(())
}
fn internal_update_fulfill_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) -> Result<(), MsgHandleErrInternal> {
- let mut channel_state = self.channel_state.lock().unwrap();
- let htlc_source = match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
- //TODO: here and below MsgHandleErrInternal, #153 case
- return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
- }
- chan.update_fulfill_htlc(&msg)
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))?.clone()
- },
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let htlc_source = {
+ let channel_state = channel_lock.borrow_parts();
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
+ //TODO: here and below MsgHandleErrInternal, #153 case
+ return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
+ }
+ try_chan_entry!(self, chan.get_mut().update_fulfill_htlc(&msg), channel_state, chan)
+ },
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ }
};
- self.claim_funds_internal(channel_state, htlc_source, msg.payment_preimage.clone());
+ self.claim_funds_internal(channel_lock, htlc_source, msg.payment_preimage.clone());
Ok(())
}
}
fn internal_update_fail_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), MsgHandleErrInternal> {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- chan.update_fail_htlc(&msg, HTLCFailReason::ErrorPacket { err: msg.reason.clone() })
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))
+ try_chan_entry!(self, chan.get_mut().update_fail_htlc(&msg, HTLCFailReason::ErrorPacket { err: msg.reason.clone() }), channel_state, chan);
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
- }?;
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ }
Ok(())
}
fn internal_update_fail_malformed_htlc(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) -> Result<(), MsgHandleErrInternal> {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
if (msg.failure_code & 0x8000) == 0 {
- return Err(MsgHandleErrInternal::send_err_msg_close_chan("Got update_fail_malformed_htlc with BADONION not set", msg.channel_id));
+ try_chan_entry!(self, Err(ChannelError::Close("Got update_fail_malformed_htlc with BADONION not set")), channel_state, chan);
}
- chan.update_fail_malformed_htlc(&msg, HTLCFailReason::Reason { failure_code: msg.failure_code, data: Vec::new() })
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))?;
+ try_chan_entry!(self, chan.get_mut().update_fail_malformed_htlc(&msg, HTLCFailReason::Reason { failure_code: msg.failure_code, data: Vec::new() }), channel_state, chan);
Ok(())
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
}
fn internal_commitment_signed(&self, their_node_id: &PublicKey, msg: &msgs::CommitmentSigned) -> Result<(), MsgHandleErrInternal> {
let mut channel_state_lock = self.channel_state.lock().unwrap();
let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- let (revoke_and_ack, commitment_signed, closing_signed, chan_monitor) = chan.commitment_signed(&msg, &*self.fee_estimator).map_err(|e| MsgHandleErrInternal::from_maybe_close(e))?;
+ let (revoke_and_ack, commitment_signed, closing_signed, chan_monitor) =
+ try_chan_entry!(self, chan.get_mut().commitment_signed(&msg, &*self.fee_estimator), channel_state, chan);
if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
unimplemented!();
}
}
Ok(())
},
- None => Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
}
let (pending_forwards, mut pending_failures, short_channel_id) = {
let mut channel_state_lock = self.channel_state.lock().unwrap();
let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- let (commitment_update, pending_forwards, pending_failures, closing_signed, chan_monitor) = chan.revoke_and_ack(&msg, &*self.fee_estimator).map_err(|e| MsgHandleErrInternal::from_maybe_close(e))?;
+ let (commitment_update, pending_forwards, pending_failures, closing_signed, chan_monitor) =
+ try_chan_entry!(self, chan.get_mut().revoke_and_ack(&msg, &*self.fee_estimator), channel_state, chan);
if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
unimplemented!();
}
msg,
});
}
- (pending_forwards, pending_failures, chan.get_short_channel_id().expect("RAA should only work on a short-id-available channel"))
+ (pending_forwards, pending_failures, chan.get().get_short_channel_id().expect("RAA should only work on a short-id-available channel"))
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
};
for failure in pending_failures.drain(..) {
}
fn internal_update_fee(&self, their_node_id: &PublicKey, msg: &msgs::UpdateFee) -> Result<(), MsgHandleErrInternal> {
- let mut channel_state = self.channel_state.lock().unwrap();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ let mut channel_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_lock.borrow_parts();
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
//TODO: here and below MsgHandleErrInternal, #153 case
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- chan.update_fee(&*self.fee_estimator, &msg).map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))
+ try_chan_entry!(self, chan.get_mut().update_fee(&*self.fee_estimator, &msg), channel_state, chan);
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
+ Ok(())
}
fn internal_announcement_signatures(&self, their_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) -> Result<(), MsgHandleErrInternal> {
let mut channel_state_lock = self.channel_state.lock().unwrap();
let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- if !chan.is_usable() {
+ if !chan.get().is_usable() {
return Err(MsgHandleErrInternal::from_no_close(HandleError{err: "Got an announcement_signatures before we were ready for it", action: Some(msgs::ErrorAction::IgnoreError)}));
}
let our_node_id = self.get_our_node_id();
- let (announcement, our_bitcoin_sig) = chan.get_channel_announcement(our_node_id.clone(), self.genesis_hash.clone())
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))?;
+ let (announcement, our_bitcoin_sig) =
+ try_chan_entry!(self, chan.get_mut().get_channel_announcement(our_node_id.clone(), self.genesis_hash.clone()), channel_state, chan);
let were_node_one = announcement.node_id_1 == our_node_id;
let msghash = Message::from_slice(&Sha256dHash::from_data(&announcement.encode()[..])[..]).unwrap();
- let bad_sig_action = MsgHandleErrInternal::send_err_msg_close_chan("Bad announcement_signatures node_signature", msg.channel_id);
- secp_call!(self.secp_ctx.verify(&msghash, &msg.node_signature, if were_node_one { &announcement.node_id_2 } else { &announcement.node_id_1 }), bad_sig_action);
- secp_call!(self.secp_ctx.verify(&msghash, &msg.bitcoin_signature, if were_node_one { &announcement.bitcoin_key_2 } else { &announcement.bitcoin_key_1 }), bad_sig_action);
+ if self.secp_ctx.verify(&msghash, &msg.node_signature, if were_node_one { &announcement.node_id_2 } else { &announcement.node_id_1 }).is_err() ||
+ self.secp_ctx.verify(&msghash, &msg.bitcoin_signature, if were_node_one { &announcement.bitcoin_key_2 } else { &announcement.bitcoin_key_1 }).is_err() {
+ try_chan_entry!(self, Err(ChannelError::Close("Bad announcement_signatures node_signature")), channel_state, chan);
+ }
let our_node_sig = self.secp_ctx.sign(&msghash, &self.our_network_key);
bitcoin_signature_2: if were_node_one { msg.bitcoin_signature } else { our_bitcoin_sig },
contents: announcement,
},
- update_msg: self.get_channel_update(chan).unwrap(), // can only fail if we're not in a ready state
+ update_msg: self.get_channel_update(chan.get()).unwrap(), // can only fail if we're not in a ready state
});
},
- None => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
Ok(())
}
let mut channel_state_lock = self.channel_state.lock().unwrap();
let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&msg.channel_id) {
- Some(chan) => {
- if chan.get_their_node_id() != *their_node_id {
+ match channel_state.by_id.entry(msg.channel_id) {
+ hash_map::Entry::Occupied(mut chan) => {
+ if chan.get().get_their_node_id() != *their_node_id {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!", msg.channel_id));
}
- let (funding_locked, revoke_and_ack, commitment_update, channel_monitor, order, shutdown) = chan.channel_reestablish(msg)
- .map_err(|e| MsgHandleErrInternal::from_chan_maybe_close(e, msg.channel_id))?;
+ let (funding_locked, revoke_and_ack, commitment_update, channel_monitor, order, shutdown) =
+ try_chan_entry!(self, chan.get_mut().channel_reestablish(msg), channel_state, chan);
if let Some(monitor) = channel_monitor {
if let Err(_e) = self.monitor.add_update_monitor(monitor.get_funding_txo().unwrap(), monitor) {
unimplemented!();
}
Ok(())
},
- None => Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel", msg.channel_id))
}
}
#[doc(hidden)]
pub fn update_fee(&self, channel_id: [u8;32], feerate_per_kw: u64) -> Result<(), APIError> {
let _ = self.total_consistency_lock.read().unwrap();
- let mut channel_state_lock = self.channel_state.lock().unwrap();
- let channel_state = channel_state_lock.borrow_parts();
+ let their_node_id;
+ let err: Result<(), _> = loop {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = channel_state_lock.borrow_parts();
- match channel_state.by_id.get_mut(&channel_id) {
- None => return Err(APIError::APIMisuseError{err: "Failed to find corresponding channel"}),
- Some(chan) => {
- if !chan.is_outbound() {
- return Err(APIError::APIMisuseError{err: "update_fee cannot be sent for an inbound channel"});
- }
- if chan.is_awaiting_monitor_update() {
- return Err(APIError::MonitorUpdateFailed);
- }
- if !chan.is_live() {
- return Err(APIError::ChannelUnavailable{err: "Channel is either not yet fully established or peer is currently disconnected"});
- }
- if let Some((update_fee, commitment_signed, chan_monitor)) = chan.send_update_fee_and_commit(feerate_per_kw).map_err(|e| APIError::APIMisuseError{err: e.err})? {
- if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
- unimplemented!();
+ match channel_state.by_id.entry(channel_id) {
+ hash_map::Entry::Vacant(_) => return Err(APIError::APIMisuseError{err: "Failed to find corresponding channel"}),
+ hash_map::Entry::Occupied(mut chan) => {
+ if !chan.get().is_outbound() {
+ return Err(APIError::APIMisuseError{err: "update_fee cannot be sent for an inbound channel"});
}
- channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
- node_id: chan.get_their_node_id(),
- updates: msgs::CommitmentUpdate {
- update_add_htlcs: Vec::new(),
- update_fulfill_htlcs: Vec::new(),
- update_fail_htlcs: Vec::new(),
- update_fail_malformed_htlcs: Vec::new(),
- update_fee: Some(update_fee),
- commitment_signed,
- },
+ if chan.get().is_awaiting_monitor_update() {
+ return Err(APIError::MonitorUpdateFailed);
+ }
+ if !chan.get().is_live() {
+ return Err(APIError::ChannelUnavailable{err: "Channel is either not yet fully established or peer is currently disconnected"});
+ }
+ their_node_id = chan.get().get_their_node_id();
+ if let Some((update_fee, commitment_signed, chan_monitor)) =
+ break_chan_entry!(self, chan.get_mut().send_update_fee_and_commit(feerate_per_kw), channel_state, chan)
+ {
+ if let Err(_e) = self.monitor.add_update_monitor(chan_monitor.get_funding_txo().unwrap(), chan_monitor) {
+ unimplemented!();
+ }
+ channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
+ node_id: chan.get().get_their_node_id(),
+ updates: msgs::CommitmentUpdate {
+ update_add_htlcs: Vec::new(),
+ update_fulfill_htlcs: Vec::new(),
+ update_fail_htlcs: Vec::new(),
+ update_fail_malformed_htlcs: Vec::new(),
+ update_fee: Some(update_fee),
+ commitment_signed,
+ },
+ });
+ }
+ },
+ }
+ return Ok(())
+ };
+
+ match handle_error!(self, err, their_node_id) {
+ Ok(_) => unreachable!(),
+ Err(e) => {
+ if let Some(msgs::ErrorAction::IgnoreError) = e.action {
+ } else {
+ log_error!(self, "Got bad keys: {}!", e.err);
+ let mut channel_state = self.channel_state.lock().unwrap();
+ channel_state.pending_msg_events.push(events::MessageSendEvent::HandleError {
+ node_id: their_node_id,
+ action: e.action,
});
}
+ Err(APIError::APIMisuseError { err: e.err })
},
}
- Ok(())
}
}
} else if let Err(e) = chan_res {
pending_msg_events.push(events::MessageSendEvent::HandleError {
node_id: channel.get_their_node_id(),
- action: e.action,
+ action: Some(msgs::ErrorAction::SendErrorMessage { msg: e }),
});
- if channel.is_shutdown() {
- return false;
- }
+ return false;
}
if let Some(funding_txo) = channel.get_funding_txo() {
for tx in txn_matched {
}
}
-macro_rules! handle_error {
- ($self: ident, $internal: expr, $their_node_id: expr) => {
- match $internal {
- Ok(msg) => Ok(msg),
- Err(MsgHandleErrInternal { err, needs_channel_force_close }) => {
- if needs_channel_force_close {
- match &err.action {
- &Some(msgs::ErrorAction::DisconnectPeer { msg: Some(ref msg) }) => {
- if msg.channel_id == [0; 32] {
- $self.peer_disconnected(&$their_node_id, true);
- } else {
- $self.force_close_channel(&msg.channel_id);
- }
- },
- &Some(msgs::ErrorAction::DisconnectPeer { msg: None }) => {},
- &Some(msgs::ErrorAction::IgnoreError) => {},
- &Some(msgs::ErrorAction::SendErrorMessage { ref msg }) => {
- if msg.channel_id == [0; 32] {
- $self.peer_disconnected(&$their_node_id, true);
- } else {
- $self.force_close_channel(&msg.channel_id);
- }
- },
- &None => {},
- }
- }
- Err(err)
- },
- }
- }
-}
-
impl ChannelMessageHandler for ChannelManager {
//TODO: Handle errors and close channel (or so)
fn handle_open_channel(&self, their_node_id: &PublicKey, msg: &msgs::OpenChannel) -> Result<(), HandleError> {
use chain::chaininterface;
use chain::transaction::OutPoint;
use chain::chaininterface::{ChainListener, ChainWatchInterface};
- use chain::keysinterface::KeysInterface;
+ use chain::keysinterface::{KeysInterface, SpendableOutputDescriptor};
use chain::keysinterface;
+ use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC};
use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,OnionKeys,PaymentFailReason,RAACommitmentOrder};
use ln::channelmonitor::{ChannelMonitor, ChannelMonitorUpdateErr, CLTV_CLAIM_BUFFER, HTLC_FAIL_TIMEOUT_BLOCKS, ManyChannelMonitor};
use ln::router::{Route, RouteHop, Router};
use util::config::UserConfig;
use bitcoin::util::hash::{BitcoinHash, Sha256dHash};
+ use bitcoin::util::bip143;
+ use bitcoin::util::address::Address;
+ use bitcoin::util::bip32::{ChildNumber, ExtendedPubKey, ExtendedPrivKey};
use bitcoin::blockdata::block::{Block, BlockHeader};
- use bitcoin::blockdata::transaction::{Transaction, TxOut};
+ use bitcoin::blockdata::transaction::{Transaction, TxOut, TxIn, SigHashType};
+ use bitcoin::blockdata::script::{Builder, Script};
+ use bitcoin::blockdata::opcodes;
use bitcoin::blockdata::constants::genesis_block;
use bitcoin::network::constants::Network;
}
}
+ macro_rules! get_feerate {
+ ($node: expr, $channel_id: expr) => {
+ {
+ let chan_lock = $node.node.channel_state.lock().unwrap();
+ let chan = chan_lock.by_id.get(&$channel_id).unwrap();
+ chan.get_feerate()
+ }
+ }
+ }
+
+
fn create_chan_between_nodes_with_value_init(node_a: &Node, node_b: &Node, channel_value: u64, push_msat: u64) -> Transaction {
node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42).unwrap();
node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id())).unwrap();
}
}
- fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate) {
+ fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) {
let (node_a, broadcaster_a, struct_a) = if close_inbound_first { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) } else { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) };
let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
let (tx_a, tx_b);
assert_eq!(tx_a, tx_b);
check_spends!(tx_a, funding_tx);
- (as_update, bs_update)
+ (as_update, bs_update, tx_a)
}
struct SendEvent {
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
- macro_rules! get_feerate {
- ($node: expr) => {{
- let chan_lock = $node.node.channel_state.lock().unwrap();
- let chan = chan_lock.by_id.get(&channel_id).unwrap();
- chan.get_feerate()
- }}
- }
-
// balancing
send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
// (6) RAA is delivered ->
// First nodes[0] generates an update_fee
- nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0]) + 20).unwrap();
+ nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap();
check_added_monitors!(nodes[0], 1);
let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
- macro_rules! get_feerate {
- ($node: expr) => {{
- let chan_lock = $node.node.channel_state.lock().unwrap();
- let chan = chan_lock.by_id.get(&channel_id).unwrap();
- chan.get_feerate()
- }}
- }
-
// balancing
send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
// First nodes[0] generates an update_fee
- nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0]) + 20).unwrap();
+ nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap();
check_added_monitors!(nodes[0], 1);
let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
- macro_rules! get_feerate {
- ($node: expr) => {{
- let chan_lock = $node.node.channel_state.lock().unwrap();
- let chan = chan_lock.by_id.get(&channel_id).unwrap();
- chan.get_feerate()
- }}
- }
-
// A B
// update_fee/commitment_signed ->
// .- send (1) RAA and (2) commitment_signed
// revoke_and_ack ->
// First nodes[0] generates an update_fee
- let initial_feerate = get_feerate!(nodes[0]);
+ let initial_feerate = get_feerate!(nodes[0], channel_id);
nodes[0].node.update_fee(channel_id, initial_feerate + 20).unwrap();
check_added_monitors!(nodes[0], 1);
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
- macro_rules! get_feerate {
- ($node: expr) => {{
- let chan_lock = $node.node.channel_state.lock().unwrap();
- let chan = chan_lock.by_id.get(&channel_id).unwrap();
- chan.get_feerate()
- }}
- }
-
- let feerate = get_feerate!(nodes[0]);
- nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
+ let feerate = get_feerate!(nodes[0], channel_id);
+ nodes[0].node.update_fee(channel_id, feerate+25).unwrap();
check_added_monitors!(nodes[0], 1);
let events_0 = nodes[0].node.get_and_clear_pending_msg_events();
check_added_monitors!(nodes[1], 1);
}
+ #[test]
+ fn test_update_fee_that_funder_cannot_afford() {
+ let nodes = create_network(2);
+ let channel_value = 1888;
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 700000);
+ let channel_id = chan.2;
+
+ let feerate = 260;
+ nodes[0].node.update_fee(channel_id, feerate).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ let update_msg = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
+
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg.update_fee.unwrap()).unwrap();
+
+ commitment_signed_dance!(nodes[1], nodes[0], update_msg.commitment_signed, false);
+
+ //Confirm that the new fee based on the last local commitment txn is what we expected based on the feerate of 260 set above.
+ //This value results in a fee that is exactly what the funder can afford (277 sat + 1000 sat channel reserve)
+ {
+ let chan_lock = nodes[1].node.channel_state.lock().unwrap();
+ let chan = chan_lock.by_id.get(&channel_id).unwrap();
+
+ //We made sure neither party's funds are below the dust limit so -2 non-HTLC txns from number of outputs
+ let num_htlcs = chan.last_local_commitment_txn[0].output.len() - 2;
+ let total_fee: u64 = feerate * (COMMITMENT_TX_BASE_WEIGHT + (num_htlcs as u64) * COMMITMENT_TX_WEIGHT_PER_HTLC) / 1000;
+ let mut actual_fee = chan.last_local_commitment_txn[0].output.iter().fold(0, |acc, output| acc + output.value);
+ actual_fee = channel_value - actual_fee;
+ assert_eq!(total_fee, actual_fee);
+ } //drop the mutex
+
+ //Add 2 to the previous fee rate to the final fee increases by 1 (with no HTLCs the fee is essentially
+ //fee_rate*(724/1000) so the increment of 1*0.724 is rounded back down)
+ nodes[0].node.update_fee(channel_id, feerate+2).unwrap();
+ check_added_monitors!(nodes[0], 1);
+
+ let update2_msg = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
+
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update2_msg.update_fee.unwrap()).unwrap();
+
+ //While producing the commitment_signed response after handling a received update_fee request the
+ //check to see if the funder, who sent the update_fee request, can afford the new fee (funder_balance >= fee+channel_reserve)
+ //Should produce and error.
+ let err = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &update2_msg.commitment_signed).unwrap_err();
+
+ assert!(match err.err {
+ "Funding remote cannot afford proposed new fee" => true,
+ _ => false,
+ });
+
+ //clear the message we could not handle
+ nodes[1].node.get_and_clear_pending_msg_events();
+ }
+
#[test]
fn test_update_fee_with_fundee_update_add_htlc() {
let mut nodes = create_network(2);
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
- macro_rules! get_feerate {
- ($node: expr) => {{
- let chan_lock = $node.node.channel_state.lock().unwrap();
- let chan = chan_lock.by_id.get(&channel_id).unwrap();
- chan.get_feerate()
- }}
- }
-
// balancing
send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
- let feerate = get_feerate!(nodes[0]);
+ let feerate = get_feerate!(nodes[0], channel_id);
nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
check_added_monitors!(nodes[0], 1);
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
- macro_rules! get_feerate {
- ($node: expr) => {{
- let chan_lock = $node.node.channel_state.lock().unwrap();
- let chan = chan_lock.by_id.get(&channel_id).unwrap();
- chan.get_feerate()
- }}
- }
-
// A B
// (1) update_fee/commitment_signed ->
// <- (2) revoke_and_ack
// revoke_and_ack ->
// Create and deliver (1)...
- let feerate = get_feerate!(nodes[0]);
+ let feerate = get_feerate!(nodes[0], channel_id);
nodes[0].node.update_fee(channel_id, feerate+20).unwrap();
check_added_monitors!(nodes[0], 1);
check_added_monitors!(nodes[1], 1);
assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
- assert_eq!(get_feerate!(nodes[0]), feerate + 30);
- assert_eq!(get_feerate!(nodes[1]), feerate + 30);
+ assert_eq!(get_feerate!(nodes[0], channel_id), feerate + 30);
+ assert_eq!(get_feerate!(nodes[1], channel_id), feerate + 30);
close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true);
}
}}
}
- #[test]
- fn channel_reserve_test() {
+ fn do_channel_reserve_test(test_recv: bool) {
use util::rng;
use std::sync::atomic::Ordering;
use ln::msgs::HandleError;
onion_routing_packet: onion_packet,
};
- let err = nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg).err().unwrap();
- match err {
- HandleError{err, .. } => assert_eq!(err, "Remote HTLC add would put them over their reserve value"),
+ if test_recv {
+ let err = nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &msg).err().unwrap();
+ match err {
+ HandleError{err, .. } => assert_eq!(err, "Remote HTLC add would put them over their reserve value"),
+ }
+ // If we send a garbage message, the channel should get closed, making the rest of this test case fail.
+ assert_eq!(nodes[1].node.list_channels().len(), 1);
+ assert_eq!(nodes[1].node.list_channels().len(), 1);
+ let channel_close_broadcast = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(channel_close_broadcast.len(), 1);
+ match channel_close_broadcast[0] {
+ MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
+ assert_eq!(msg.contents.flags & 2, 2);
+ },
+ _ => panic!("Unexpected event"),
+ }
+ return;
}
}
assert_eq!(stat2.value_to_self_msat, stat22.value_to_self_msat + recv_value_1 + recv_value_21 + recv_value_22);
}
+ #[test]
+ fn channel_reserve_test() {
+ do_channel_reserve_test(false);
+ do_channel_reserve_test(true);
+ }
+
#[test]
fn channel_monitor_network_test() {
// Simple test which builds a network of ChannelManagers, connects them to each other, and
assert_eq!(msg.channel_id, channel_id);
} else { panic!("Unexpected result"); }
}
+
+ macro_rules! check_spendable_outputs {
+ ($node: expr, $der_idx: expr) => {
+ {
+ let events = $node.chan_monitor.simple_monitor.get_and_clear_pending_events();
+ let mut txn = Vec::new();
+ for event in events {
+ match event {
+ Event::SpendableOutputs { ref outputs } => {
+ for outp in outputs {
+ match *outp {
+ SpendableOutputDescriptor::DynamicOutputP2WPKH { ref outpoint, ref key, ref output } => {
+ let input = TxIn {
+ previous_output: outpoint.clone(),
+ script_sig: Script::new(),
+ sequence: 0,
+ witness: Vec::new(),
+ };
+ let outp = TxOut {
+ script_pubkey: Builder::new().push_opcode(opcodes::All::OP_RETURN).into_script(),
+ value: output.value,
+ };
+ let mut spend_tx = Transaction {
+ version: 2,
+ lock_time: 0,
+ input: vec![input],
+ output: vec![outp],
+ };
+ let secp_ctx = Secp256k1::new();
+ let remotepubkey = PublicKey::from_secret_key(&secp_ctx, &key);
+ let witness_script = Address::p2pkh(&remotepubkey, Network::Testnet).script_pubkey();
+ let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
+ let remotesig = secp_ctx.sign(&sighash, key);
+ spend_tx.input[0].witness.push(remotesig.serialize_der(&secp_ctx).to_vec());
+ spend_tx.input[0].witness[0].push(SigHashType::All as u8);
+ spend_tx.input[0].witness.push(remotepubkey.serialize().to_vec());
+ txn.push(spend_tx);
+ },
+ SpendableOutputDescriptor::DynamicOutputP2WSH { ref outpoint, ref key, ref witness_script, ref to_self_delay, ref output } => {
+ let input = TxIn {
+ previous_output: outpoint.clone(),
+ script_sig: Script::new(),
+ sequence: *to_self_delay as u32,
+ witness: Vec::new(),
+ };
+ let outp = TxOut {
+ script_pubkey: Builder::new().push_opcode(opcodes::All::OP_RETURN).into_script(),
+ value: output.value,
+ };
+ let mut spend_tx = Transaction {
+ version: 2,
+ lock_time: 0,
+ input: vec![input],
+ output: vec![outp],
+ };
+ let secp_ctx = Secp256k1::new();
+ let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], witness_script, output.value)[..]).unwrap();
+ let local_delaysig = secp_ctx.sign(&sighash, key);
+ spend_tx.input[0].witness.push(local_delaysig.serialize_der(&secp_ctx).to_vec());
+ spend_tx.input[0].witness[0].push(SigHashType::All as u8);
+ spend_tx.input[0].witness.push(vec!(0));
+ spend_tx.input[0].witness.push(witness_script.clone().into_bytes());
+ txn.push(spend_tx);
+ },
+ SpendableOutputDescriptor::StaticOutput { ref outpoint, ref output } => {
+ let secp_ctx = Secp256k1::new();
+ let input = TxIn {
+ previous_output: outpoint.clone(),
+ script_sig: Script::new(),
+ sequence: 0,
+ witness: Vec::new(),
+ };
+ let outp = TxOut {
+ script_pubkey: Builder::new().push_opcode(opcodes::All::OP_RETURN).into_script(),
+ value: output.value,
+ };
+ let mut spend_tx = Transaction {
+ version: 2,
+ lock_time: 0,
+ input: vec![input],
+ output: vec![outp.clone()],
+ };
+ let secret = {
+ match ExtendedPrivKey::new_master(&secp_ctx, Network::Testnet, &$node.node_seed) {
+ Ok(master_key) => {
+ match master_key.ckd_priv(&secp_ctx, ChildNumber::from_hardened_idx($der_idx)) {
+ Ok(key) => key,
+ Err(_) => panic!("Your RNG is busted"),
+ }
+ }
+ Err(_) => panic!("Your rng is busted"),
+ }
+ };
+ let pubkey = ExtendedPubKey::from_private(&secp_ctx, &secret).public_key;
+ let witness_script = Address::p2pkh(&pubkey, Network::Testnet).script_pubkey();
+ let sighash = Message::from_slice(&bip143::SighashComponents::new(&spend_tx).sighash_all(&spend_tx.input[0], &witness_script, output.value)[..]).unwrap();
+ let sig = secp_ctx.sign(&sighash, &secret.secret_key);
+ spend_tx.input[0].witness.push(sig.serialize_der(&secp_ctx).to_vec());
+ spend_tx.input[0].witness[0].push(SigHashType::All as u8);
+ spend_tx.input[0].witness.push(pubkey.serialize().to_vec());
+ txn.push(spend_tx);
+ },
+ }
+ }
+ },
+ _ => panic!("Unexpected event"),
+ };
+ }
+ txn
+ }
+ }
+ }
+
+ #[test]
+ fn test_claim_sizeable_push_msat() {
+ // Incidentally test SpendableOutput event generation due to detection of to_local output on commitment tx
+ let nodes = create_network(2);
+
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000);
+ nodes[1].node.force_close_channel(&chan.2);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn.len(), 1);
+ check_spends!(node_txn[0], chan.3.clone());
+ assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[0].clone()] }, 0);
+ let spend_txn = check_spendable_outputs!(nodes[1], 1);
+ assert_eq!(spend_txn.len(), 1);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_claim_on_remote_sizeable_push_msat() {
+ // Same test as previous, just test on remote commitment tx, as per_commitment_point registration changes following you're funder/fundee and
+ // to_remote output is encumbered by a P2WPKH
+
+ let nodes = create_network(2);
+
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 99000000);
+ nodes[0].node.force_close_channel(&chan.2);
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn.len(), 1);
+ check_spends!(node_txn[0], chan.3.clone());
+ assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[0].clone()] }, 0);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let spend_txn = check_spendable_outputs!(nodes[1], 1);
+ assert_eq!(spend_txn.len(), 2);
+ assert_eq!(spend_txn[0], spend_txn[1]);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_claim_on_remote_revoked_sizeable_push_msat() {
+ // Same test as previous, just test on remote revoked commitment tx, as per_commitment_point registration changes following you're funder/fundee and
+ // to_remote output is encumbered by a P2WPKH
+
+ let nodes = create_network(2);
+
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 59000000);
+ let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
+ let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().last_local_commitment_txn.clone();
+ assert_eq!(revoked_local_txn[0].input.len(), 1);
+ assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid());
+
+ claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ let spend_txn = check_spendable_outputs!(nodes[1], 1);
+ assert_eq!(spend_txn.len(), 4);
+ assert_eq!(spend_txn[0], spend_txn[2]); // to_remote output on revoked remote commitment_tx
+ check_spends!(spend_txn[0], revoked_local_txn[0].clone());
+ assert_eq!(spend_txn[1], spend_txn[3]); // to_local output on local commitment tx
+ check_spends!(spend_txn[1], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_static_spendable_outputs_preimage_tx() {
+ let nodes = create_network(2);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
+
+ let commitment_tx = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone();
+ assert_eq!(commitment_tx[0].input.len(), 1);
+ assert_eq!(commitment_tx[0].input[0].previous_output.txid, chan_1.3.txid());
+
+ // Settle A's commitment tx on B's chain
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ assert!(nodes[1].node.claim_funds(payment_preimage));
+ check_added_monitors!(nodes[1], 1);
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![commitment_tx[0].clone()] }, 1);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::UpdateHTLCs { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ match events[1] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexepected event"),
+ }
+
+ // Check B's monitor was able to send back output descriptor event for preimage tx on A's commitment tx
+ let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); // ChannelManager : 1 (local commitment tx), ChannelMonitor: 2 (1 preimage tx) * 2 (block-rescan)
+ check_spends!(node_txn[0], commitment_tx[0].clone());
+ assert_eq!(node_txn[0], node_txn[2]);
+ assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), 133);
+ check_spends!(node_txn[1], chan_1.3.clone());
+
+ let spend_txn = check_spendable_outputs!(nodes[1], 1); // , 0, 0, 1, 1);
+ assert_eq!(spend_txn.len(), 2);
+ assert_eq!(spend_txn[0], spend_txn[1]);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() {
+ let nodes = create_network(2);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
+ let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.iter().next().unwrap().1.last_local_commitment_txn.clone();
+ assert_eq!(revoked_local_txn[0].input.len(), 1);
+ assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
+
+ claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn.len(), 3);
+ assert_eq!(node_txn.pop().unwrap(), node_txn[0]);
+ assert_eq!(node_txn[0].input.len(), 2);
+ check_spends!(node_txn[0], revoked_local_txn[0].clone());
+
+ let spend_txn = check_spendable_outputs!(nodes[1], 1);
+ assert_eq!(spend_txn.len(), 2);
+ assert_eq!(spend_txn[0], spend_txn[1]);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() {
+ let nodes = create_network(2);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
+ let revoked_local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone();
+ assert_eq!(revoked_local_txn[0].input.len(), 1);
+ assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
+
+ claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ // A will generate HTLC-Timeout from revoked commitment tx
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let revoked_htlc_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(revoked_htlc_txn.len(), 2);
+ assert_eq!(revoked_htlc_txn[0].input.len(), 1);
+ assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), 133);
+ check_spends!(revoked_htlc_txn[0], revoked_local_txn[0].clone());
+
+ // B will generate justice tx from A's revoked commitment/HTLC tx
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }, 1);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+
+ let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn.len(), 4);
+ assert_eq!(node_txn[3].input.len(), 1);
+ check_spends!(node_txn[3], revoked_htlc_txn[0].clone());
+
+ // Check B's ChannelMonitor was able to generate the right spendable output descriptor
+ let spend_txn = check_spendable_outputs!(nodes[1], 1);
+ assert_eq!(spend_txn.len(), 3);
+ assert_eq!(spend_txn[0], spend_txn[1]);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+ check_spends!(spend_txn[2], node_txn[3].clone());
+ }
+
+ #[test]
+ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() {
+ let nodes = create_network(2);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
+ let revoked_local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone();
+ assert_eq!(revoked_local_txn[0].input.len(), 1);
+ assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid());
+
+ claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage);
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ // B will generate HTLC-Success from revoked commitment tx
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ let revoked_htlc_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+
+ assert_eq!(revoked_htlc_txn.len(), 2);
+ assert_eq!(revoked_htlc_txn[0].input.len(), 1);
+ assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), 138);
+ check_spends!(revoked_htlc_txn[0], revoked_local_txn[0].clone());
+
+ // A will generate justice tx from B's revoked commitment/HTLC tx
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }, 1);
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+
+ let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn.len(), 4);
+ assert_eq!(node_txn[3].input.len(), 1);
+ check_spends!(node_txn[3], revoked_htlc_txn[0].clone());
+
+ // Check A's ChannelMonitor was able to generate the right spendable output descriptor
+ let spend_txn = check_spendable_outputs!(nodes[0], 1);
+ assert_eq!(spend_txn.len(), 5);
+ assert_eq!(spend_txn[0], spend_txn[2]);
+ assert_eq!(spend_txn[1], spend_txn[3]);
+ check_spends!(spend_txn[0], revoked_local_txn[0].clone()); // spending to_remote output from revoked local tx
+ check_spends!(spend_txn[1], node_txn[2].clone()); // spending justice tx output from revoked local tx htlc received output
+ check_spends!(spend_txn[4], node_txn[3].clone()); // spending justice tx output on htlc success tx
+ }
+
+ #[test]
+ fn test_dynamic_spendable_outputs_local_htlc_success_tx() {
+ let nodes = create_network(2);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0;
+ let local_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone();
+ assert_eq!(local_txn[0].input.len(), 1);
+ check_spends!(local_txn[0], chan_1.3.clone());
+
+ // Give B knowledge of preimage to be able to generate a local HTLC-Success Tx
+ nodes[1].node.claim_funds(payment_preimage);
+ check_added_monitors!(nodes[1], 1);
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![local_txn[0].clone()] }, 1);
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::UpdateHTLCs { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+ match events[1] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexepected event"),
+ }
+ let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn[0].input.len(), 1);
+ assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), 138);
+ check_spends!(node_txn[0], local_txn[0].clone());
+
+ // Verify that B is able to spend its own HTLC-Success tx thanks to spendable output event given back by its ChannelMonitor
+ let spend_txn = check_spendable_outputs!(nodes[1], 1);
+ assert_eq!(spend_txn.len(), 1);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() {
+ let nodes = create_network(2);
+
+ // Create some initial channels
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000).0;
+ let local_txn = nodes[0].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone();
+ assert_eq!(local_txn[0].input.len(), 1);
+ check_spends!(local_txn[0], chan_1.3.clone());
+
+ // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![local_txn[0].clone()] }, 200);
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexepected event"),
+ }
+ let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap();
+ assert_eq!(node_txn[0].input.len(), 1);
+ assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), 133);
+ check_spends!(node_txn[0], local_txn[0].clone());
+
+ // Verify that A is able to spend its own HTLC-Timeout tx thanks to spendable output event given back by its ChannelMonitor
+ let spend_txn = check_spendable_outputs!(nodes[0], 1);
+ assert_eq!(spend_txn.len(), 4);
+ assert_eq!(spend_txn[0], spend_txn[2]);
+ assert_eq!(spend_txn[1], spend_txn[3]);
+ check_spends!(spend_txn[0], local_txn[0].clone());
+ check_spends!(spend_txn[1], node_txn[0].clone());
+ }
+
+ #[test]
+ fn test_static_output_closing_tx() {
+ let nodes = create_network(2);
+
+ let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
+ let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2;
+
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![closing_tx.clone()] }, 1);
+ let spend_txn = check_spendable_outputs!(nodes[0], 2);
+ assert_eq!(spend_txn.len(), 1);
+ check_spends!(spend_txn[0], closing_tx.clone());
+
+ nodes[1].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![closing_tx.clone()] }, 1);
+ let spend_txn = check_spendable_outputs!(nodes[1], 2);
+ assert_eq!(spend_txn.len(), 1);
+ check_spends!(spend_txn[0], closing_tx);
+ }
}