- if channel.get_cur_local_commitment_transaction_number() != monitor.get_cur_local_commitment_number() ||
- channel.get_revoked_remote_commitment_transaction_number() != monitor.get_min_seen_secret() ||
- channel.get_cur_remote_commitment_transaction_number() != monitor.get_cur_remote_commitment_number() ||
- channel.get_latest_monitor_update_id() != monitor.get_latest_update_id() {
- let mut force_close_res = channel.force_shutdown();
- force_close_res.0 = monitor.get_latest_local_commitment_txn();
- closed_channels.push(force_close_res);
+ if channel.get_cur_local_commitment_transaction_number() < monitor.get_cur_local_commitment_number() ||
+ channel.get_revoked_remote_commitment_transaction_number() < monitor.get_min_seen_secret() ||
+ channel.get_cur_remote_commitment_transaction_number() < monitor.get_cur_remote_commitment_number() ||
+ channel.get_latest_monitor_update_id() > monitor.get_latest_update_id() {
+ // If the channel is ahead of the monitor, return InvalidValue:
+ return Err(DecodeError::InvalidValue);
+ } else if channel.get_cur_local_commitment_transaction_number() > monitor.get_cur_local_commitment_number() ||
+ channel.get_revoked_remote_commitment_transaction_number() > monitor.get_min_seen_secret() ||
+ channel.get_cur_remote_commitment_transaction_number() > monitor.get_cur_remote_commitment_number() ||
+ channel.get_latest_monitor_update_id() < monitor.get_latest_update_id() {
+ // But if the channel is behind of the monitor, close the channel:
+ let (_, _, mut new_failed_htlcs) = channel.force_shutdown(true);
+ failed_htlcs.append(&mut new_failed_htlcs);
+ monitor.broadcast_latest_local_commitment_txn(&args.tx_broadcaster);