Move BREAKDOWN_TIMEOUT/MAX_LOCAL_BREAKDOWN_TIMEOUT in ChannelManager

Let these values being used as default ones in UserConfig.

Also, reduce them to something more reasonable, for BREAKDOWN_TIMEOUT
from 1 week to 1 day, for MAX_LOCAL_BREAKDOWN_TIMEOUT from 2 weeks
to 1.

Author: Antoine Riard

src/ln/channel.rs

@@ -18,7 +18,7 @@ use secp256k1;
 use ln::msgs;
 use ln::msgs::{DecodeError, OptionalField};
 use ln::channelmonitor::ChannelMonitor;
-use ln::channelmanager::{PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingForwardHTLCInfo, RAACommitmentOrder, PaymentPreimage, PaymentHash};
+use ln::channelmanager::{PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingForwardHTLCInfo, RAACommitmentOrder, PaymentPreimage, PaymentHash, BREAKDOWN_TIMEOUT, MAX_LOCAL_BREAKDOWN_TIMEOUT};
 use ln::chan_utils::{TxCreationKeys,HTLCOutputInCommitment,HTLC_SUCCESS_TX_WEIGHT,HTLC_TIMEOUT_TX_WEIGHT};
 use ln::chan_utils;
 use chain::chaininterface::{FeeEstimator,ConfirmationTarget};
@@ -347,14 +347,6 @@ pub const OUR_MAX_HTLCS: u16 = 50; //TODO
 /// on ice until the funding transaction gets more confirmations, but the LN protocol doesn't
 /// really allow for this, so instead we're stuck closing it out at that point.
 const UNCONF_THRESHOLD: u32 = 6;
-/// The amount of time we require our counterparty wait to claim their money (ie time between when
-/// we, or our watchtower, must check for them having broadcast a theft transaction).
-#[cfg(not(test))]
-const BREAKDOWN_TIMEOUT: u16 = 6 * 24 * 7; //TODO?
-#[cfg(test)]
-pub const BREAKDOWN_TIMEOUT: u16 = 6 * 24 * 7; //TODO?
-/// The amount of time we're willing to wait to claim money back to us
-const MAX_LOCAL_BREAKDOWN_TIMEOUT: u16 = 6 * 24 * 14;
 /// Exposing these two constants for use in test in ChannelMonitor
 pub const COMMITMENT_TX_BASE_WEIGHT: u64 = 724;
 pub const COMMITMENT_TX_WEIGHT_PER_HTLC: u64 = 172;

src/ln/channelmanager.rs

@@ -340,6 +340,15 @@ pub struct ChannelManager {
 	logger: Arc<Logger>,
 }
 
+/// The amount of time we require our counterparty wait to claim their money (ie time between when
+/// we, or our watchtower, must check for them having broadcast a theft transaction).
+#[cfg(not(test))]
+pub(crate) const BREAKDOWN_TIMEOUT: u16 = 6 * 24;
+#[cfg(test)]
+pub const BREAKDOWN_TIMEOUT: u16 = 6 * 24;
+/// The amount of time we're willing to wait to claim money back to us
+pub(crate) const MAX_LOCAL_BREAKDOWN_TIMEOUT: u16 = 6 * 24 * 7;
+
 /// The minimum number of blocks between an inbound HTLC's CLTV and the corresponding outbound
 /// HTLC's CLTV. This should always be a few blocks greater than channelmonitor::CLTV_CLAIM_BUFFER,
 /// ie the node we forwarded the payment on to should always have enough room to reliably time out

src/ln/functional_tests.rs

@@ -6,8 +6,8 @@ use chain::transaction::OutPoint;
 use chain::chaininterface::{ChainListener, ChainWatchInterface};
 use chain::keysinterface::{KeysInterface, SpendableOutputDescriptor};
 use chain::keysinterface;
-use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC, BREAKDOWN_TIMEOUT};
-use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,HTLCForwardInfo,RAACommitmentOrder, PaymentPreimage, PaymentHash};
+use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC};
+use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,HTLCForwardInfo,RAACommitmentOrder, PaymentPreimage, PaymentHash, BREAKDOWN_TIMEOUT};
 use ln::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, HTLC_FAIL_TIMEOUT_BLOCKS, ManyChannelMonitor};
 use ln::channel::{ACCEPTED_HTLC_SCRIPT_WEIGHT, OFFERED_HTLC_SCRIPT_WEIGHT};
 use ln::onion_utils;