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0d2db92173
* compute forfeit partial tx client-side first * fix conflict * go work sync * move verify sig in VerifyForfeits * move check after len(inputs)
60 lines
1.7 KiB
Go
60 lines
1.7 KiB
Go
package common
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import (
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"fmt"
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"github.com/btcsuite/btcd/btcutil"
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"github.com/btcsuite/btcd/txscript"
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"github.com/btcsuite/btcwallet/waddrmgr"
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"github.com/lightningnetwork/lnd/input"
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"github.com/lightningnetwork/lnd/lntypes"
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"github.com/lightningnetwork/lnd/lnwallet/chainfee"
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)
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var TreeTxSize = (&input.TxWeightEstimator{}).
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AddTaprootKeySpendInput(txscript.SigHashDefault). // parent
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AddP2TROutput(). // left child
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AddP2TROutput(). // right child
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VSize()
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// liquid node size is 2x the bitcoin node size (avoid min-relay-fee issues with the low fee rate on liquid)
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var CovenantTreeTxSize = TreeTxSize * 2
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var ConnectorTxSize = (&input.TxWeightEstimator{}).
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AddTaprootKeySpendInput(txscript.SigHashDefault).
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AddP2TROutput().
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AddP2TROutput().
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VSize()
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func ComputeForfeitMinRelayFee(
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feeRate chainfee.SatPerKVByte,
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tapscript *waddrmgr.Tapscript,
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witnessSize int,
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aspScriptClass txscript.ScriptClass,
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) (uint64, error) {
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txWeightEstimator := &input.TxWeightEstimator{}
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txWeightEstimator.AddP2PKHInput() // connector input
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txWeightEstimator.AddTapscriptInput(
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lntypes.WeightUnit(witnessSize),
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tapscript,
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)
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switch aspScriptClass {
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case txscript.PubKeyHashTy:
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txWeightEstimator.AddP2PKHOutput()
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case txscript.ScriptHashTy:
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txWeightEstimator.AddP2SHOutput()
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case txscript.WitnessV0PubKeyHashTy:
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txWeightEstimator.AddP2WKHOutput()
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case txscript.WitnessV0ScriptHashTy:
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txWeightEstimator.AddP2WSHOutput()
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case txscript.WitnessV1TaprootTy:
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txWeightEstimator.AddP2TROutput()
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default:
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return 0, fmt.Errorf("unknown asp script class: %v", aspScriptClass)
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}
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return uint64(feeRate.FeeForVSize(lntypes.VByte(txWeightEstimator.VSize())).ToUnit(btcutil.AmountSatoshi)), nil
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}
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