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htlcswitch: auto-fail held htlcs

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Make the interceptable switch aware of htlc expiry and fail back htlcs in-time
to prevent the counterparty from force-closing the channel.
This commit is contained in:
Joost Jager
2022-08-15 17:28:19 +02:00
parent 74eeb95e8c
commit a0a50fa844
13 changed files with 429 additions and 212 deletions
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7
lncfg/config.go
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@@ -40,6 +40,13 @@ const (
// push us in the broadcast window.
DefaultFinalCltvRejectDelta = DefaultIncomingBroadcastDelta + 3
// DefaultCltvInterceptDelta defines the number of blocks before the
// expiry of the htlc where we don't intercept anymore. This value must
// be greater than CltvRejectDelta, because we don't want to offer htlcs
// to the interceptor client for which there is no time left to resolve
// them anymore.
DefaultCltvInterceptDelta = DefaultFinalCltvRejectDelta + 3
// DefaultOutgoingBroadcastDelta defines the number of blocks before the
// expiry of an outgoing htlc at which we force close the channel. We
// are not in a hurry to force close, because there is nothing to claim