if chan_entry.get().sent_shutdown() { " after we initiated shutdown" } else { "" });
}
- let (shutdown, closing_signed, monitor_update, htlcs) = try_chan_entry!(self, chan_entry.get_mut().shutdown(&self.fee_estimator, &self.keys_manager, &their_features, &msg), channel_state, chan_entry);
+ let (shutdown, monitor_update, htlcs) = try_chan_entry!(self, chan_entry.get_mut().shutdown(&self.keys_manager, &their_features, &msg), channel_state, chan_entry);
dropped_htlcs = htlcs;
// Update the monitor with the shutdown script if necessary.
msg,
});
}
- if let Some(msg) = closing_signed {
- // TODO: Do not send this if the monitor update failed.
- channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
- node_id: *counterparty_node_id,
- msg,
- });
- }
break Ok(());
},
if chan.get().get_counterparty_node_id() != *counterparty_node_id {
return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id));
}
- let (revoke_and_ack, commitment_signed, closing_signed, monitor_update) =
- match chan.get_mut().commitment_signed(&msg, &self.fee_estimator, &self.logger) {
+ let (revoke_and_ack, commitment_signed, monitor_update) =
+ match chan.get_mut().commitment_signed(&msg, &self.logger) {
Err((None, e)) => try_chan_entry!(self, Err(e), channel_state, chan),
Err((Some(update), e)) => {
assert!(chan.get().is_awaiting_monitor_update());
};
if let Err(e) = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update) {
return_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::RevokeAndACKFirst, true, commitment_signed.is_some());
- //TODO: Rebroadcast closing_signed if present on monitor update restoration
}
channel_state.pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK {
node_id: counterparty_node_id.clone(),
},
});
}
- if let Some(msg) = closing_signed {
- channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
- node_id: counterparty_node_id.clone(),
- msg,
- });
- }
Ok(())
},
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id))
break Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id));
}
let was_frozen_for_monitor = chan.get().is_awaiting_monitor_update();
- let (commitment_update, pending_forwards, pending_failures, closing_signed, monitor_update, htlcs_to_fail_in) =
- break_chan_entry!(self, chan.get_mut().revoke_and_ack(&msg, &self.fee_estimator, &self.logger), channel_state, chan);
+ let (commitment_update, pending_forwards, pending_failures, monitor_update, htlcs_to_fail_in) =
+ break_chan_entry!(self, chan.get_mut().revoke_and_ack(&msg, &self.logger), channel_state, chan);
htlcs_to_fail = htlcs_to_fail_in;
if let Err(e) = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update) {
if was_frozen_for_monitor {
- assert!(commitment_update.is_none() && closing_signed.is_none() && pending_forwards.is_empty() && pending_failures.is_empty());
+ assert!(commitment_update.is_none() && pending_forwards.is_empty() && pending_failures.is_empty());
break Err(MsgHandleErrInternal::ignore_no_close("Previous monitor update failure prevented responses to RAA".to_owned()));
} else {
if let Err(e) = handle_monitor_err!(self, e, channel_state, chan, RAACommitmentOrder::CommitmentFirst, false, commitment_update.is_some(), pending_forwards, pending_failures) {
updates,
});
}
- if let Some(msg) = closing_signed {
- channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
- node_id: counterparty_node_id.clone(),
- msg,
- });
- }
break Ok((pending_forwards, pending_failures, chan.get().get_short_channel_id().expect("RAA should only work on a short-id-available channel"), chan.get().get_funding_txo().unwrap()))
},
hash_map::Entry::Vacant(_) => break Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id))
});
}
- let has_update = has_monitor_update || !failed_htlcs.is_empty();
+ let has_update = has_monitor_update || !failed_htlcs.is_empty() || !handle_errors.is_empty();
for (failures, channel_id) in failed_htlcs.drain(..) {
self.fail_holding_cell_htlcs(failures, channel_id);
}
has_update
}
+ /// Check whether any channels have finished removing all pending updates after a shutdown
+ /// exchange and can now send a closing_signed.
+ /// Returns whether any closing_signed messages were generated.
+ fn maybe_generate_initial_closing_signed(&self) -> bool {
+ let mut handle_errors: Vec<(PublicKey, Result<(), _>)> = Vec::new();
+ let mut has_update = false;
+ {
+ let mut channel_state_lock = self.channel_state.lock().unwrap();
+ let channel_state = &mut *channel_state_lock;
+ let by_id = &mut channel_state.by_id;
+ let short_to_id = &mut channel_state.short_to_id;
+ let pending_msg_events = &mut channel_state.pending_msg_events;
+
+ by_id.retain(|channel_id, chan| {
+ match chan.maybe_propose_closing_signed(&self.fee_estimator, &self.logger) {
+ Ok((msg_opt, tx_opt)) => {
+ if let Some(msg) = msg_opt {
+ has_update = true;
+ pending_msg_events.push(events::MessageSendEvent::SendClosingSigned {
+ node_id: chan.get_counterparty_node_id(), msg,
+ });
+ }
+ if let Some(tx) = tx_opt {
+ // We're done with this channel. We got a closing_signed and sent back
+ // a closing_signed with a closing transaction to broadcast.
+ if let Some(short_id) = chan.get_short_channel_id() {
+ short_to_id.remove(&short_id);
+ }
+
+ if let Ok(update) = self.get_channel_update_for_broadcast(&chan) {
+ pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ msg: update
+ });
+ }
+
+ log_info!(self.logger, "Broadcasting {}", log_tx!(tx));
+ self.tx_broadcaster.broadcast_transaction(&tx);
+ false
+ } else { true }
+ },
+ Err(e) => {
+ has_update = true;
+ let (close_channel, res) = convert_chan_err!(self, e, short_to_id, chan, channel_id);
+ handle_errors.push((chan.get_counterparty_node_id(), Err(res)));
+ !close_channel
+ }
+ }
+ });
+ }
+
+ for (counterparty_node_id, err) in handle_errors.drain(..) {
+ let _ = handle_error!(self, err, counterparty_node_id);
+ }
+
+ has_update
+ }
+
/// Handle a list of channel failures during a block_connected or block_disconnected call,
/// pushing the channel monitor update (if any) to the background events queue and removing the
/// Channel object.
if self.check_free_holding_cells() {
result = NotifyOption::DoPersist;
}
+ if self.maybe_generate_initial_closing_signed() {
+ result = NotifyOption::DoPersist;
+ }
let mut pending_events = Vec::new();
let mut channel_state = self.channel_state.lock().unwrap();
projects / rust-lightning / blobdiff