diff --git a/breacharbiter.go b/breacharbiter.go index 3706f3bd..eeee4f8e 100644 --- a/breacharbiter.go +++ b/breacharbiter.go @@ -896,6 +896,13 @@ func (bo *breachedOutput) CraftInputScript(signer input.Signer, txn *wire.MsgTx, // must be built on top of the confirmation height before the output can be // spent. func (bo *breachedOutput) BlocksToMaturity() uint32 { + // If the output is a to_remote output we can claim, and it's of the + // confirmed type, we must wait one block before claiming it. + if bo.witnessType == input.CommitmentToRemoteConfirmed { + return 1 + } + + // All other breached outputs have no CSV delay. return 0 } @@ -952,6 +959,12 @@ func newRetributionInfo(chanPoint *wire.OutPoint, witnessType = input.CommitSpendNoDelayTweakless } + // If the local delay is non-zero, it means this output is of + // the confirmed to_remote type. + if breachInfo.LocalDelay != 0 { + witnessType = input.CommitmentToRemoteConfirmed + } + localOutput := makeBreachedOutput( &breachInfo.LocalOutpoint, witnessType, @@ -1117,6 +1130,7 @@ func (b *breachArbiter) sweepSpendableOutputsTxn(txWeight int64, for _, input := range inputs { txn.AddTxIn(&wire.TxIn{ PreviousOutPoint: *input.OutPoint(), + Sequence: input.BlocksToMaturity(), }) } diff --git a/lnwallet/channel.go b/lnwallet/channel.go index a348254d..6b072ade 100644 --- a/lnwallet/channel.go +++ b/lnwallet/channel.go @@ -2013,6 +2013,10 @@ type BreachRetribution struct { // party) within the breach transaction. LocalOutpoint wire.OutPoint + // LocalDelay is the CSV delay for the to_remote script on the breached + // commitment. + LocalDelay uint32 + // RemoteOutputSignDesc is a SignDescriptor which is capable of // generating the signature required to claim the funds as described // within the revocation clause of the remote party's commitment @@ -2026,6 +2030,10 @@ type BreachRetribution struct { // party within the breach transaction. RemoteOutpoint wire.OutPoint + // RemoteDelay specifies the CSV delay applied to to-local scripts on + // the breaching commitment transaction. + RemoteDelay uint32 + // HtlcRetributions is a slice of HTLC retributions for each output // active HTLC output within the breached commitment transaction. HtlcRetributions []HtlcRetribution @@ -2034,10 +2042,6 @@ type BreachRetribution struct { // breaching commitment transaction. This allows downstream clients to // have access to the public keys used in the scripts. KeyRing *CommitmentKeyRing - - // RemoteDelay specifies the CSV delay applied to to-local scripts on - // the breaching commitment transaction. - RemoteDelay uint32 } // NewBreachRetribution creates a new fully populated BreachRetribution for the @@ -2090,7 +2094,7 @@ func NewBreachRetribution(chanState *channeldb.OpenChannel, stateNum uint64, // Since it is the remote breach we are reconstructing, the output going // to us will be a to-remote script with our local params. - ourScript, _, err := CommitScriptToRemote( + ourScript, ourDelay, err := CommitScriptToRemote( chanState.ChanType, keyRing.ToRemoteKey, ) if err != nil { @@ -2226,11 +2230,12 @@ func NewBreachRetribution(chanState *channeldb.OpenChannel, stateNum uint64, PendingHTLCs: revokedSnapshot.Htlcs, LocalOutpoint: ourOutpoint, LocalOutputSignDesc: ourSignDesc, + LocalDelay: ourDelay, RemoteOutpoint: theirOutpoint, RemoteOutputSignDesc: theirSignDesc, + RemoteDelay: theirDelay, HtlcRetributions: htlcRetributions, KeyRing: keyRing, - RemoteDelay: theirDelay, }, nil }