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lnwallet/chanfunding: assert PSBT Inputs have WitnessUtxo

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eugene 2021-04-22 12:18:04 -04:00
parent 9e2cccdbbd
commit b3f14d66f0
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1 changed files with 9 additions and 0 deletions
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9
lnwallet/chanfunding/psbt_assembler.go
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@ -249,6 +249,15 @@ func (i *PsbtIntent) Verify(packet *psbt.Packet) error {
"output amount sum") "output amount sum")
} }
// SumUtxoInputValues checks that packet.Inputs is non-empty. Here we
// check that each Input has a WitnessUtxo field, to avoid possible
// malleability.
for _, in := range packet.Inputs {
if in.WitnessUtxo == nil {
return fmt.Errorf("not all inputs are segwit spends")
}
}
i.PendingPsbt = packet i.PendingPsbt = packet
i.State = PsbtVerified i.State = PsbtVerified
return nil return nil