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Add detailed error message when splice feerate is incorrect (#2920)

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This can be helpful when troubleshooting cross-compatibility issues.

Replaces #2911.
This commit is contained in:
Bastien Teinturier 2024-10-18 10:02:38 +02:00 committed by GitHub
parent 13d4c9f06c
commit 96d0c9a35b
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GPG Key ID: B5690EEEBB952194
4 changed files with 6 additions and 5 deletions
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1
eclair-core/src/main/scala/fr/acinq/eclair/channel/ChannelExceptions.scala
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@ -83,6 +83,7 @@ case class UnexpectedFundingSignatures (override val channelId: Byte
case class InvalidFundingFeerate (override val channelId: ByteVector32, targetFeerate: FeeratePerKw, actualFeerate: FeeratePerKw) extends ChannelException(channelId, s"invalid funding feerate: target=$targetFeerate actual=$actualFeerate")
case class InvalidFundingSignature (override val channelId: ByteVector32, txId_opt: Option[TxId]) extends ChannelException(channelId, s"invalid funding signature: txId=${txId_opt.map(_.toString()).getOrElse("n/a")}")
case class InvalidRbfFeerate (override val channelId: ByteVector32, proposed: FeeratePerKw, expected: FeeratePerKw) extends ChannelException(channelId, s"invalid rbf attempt: the feerate must be at least $expected, you proposed $proposed")
case class InvalidSpliceFeerate (override val channelId: ByteVector32, proposed: FeeratePerKw, expected: FeeratePerKw) extends ChannelException(channelId, s"invalid splice request: the feerate must be at least $expected, you proposed $proposed")
case class InvalidSpliceRequest (override val channelId: ByteVector32) extends ChannelException(channelId, "invalid splice request")
case class InvalidRbfAlreadyInProgress (override val channelId: ByteVector32) extends ChannelException(channelId, "invalid rbf attempt: the current rbf attempt must be completed or aborted first")
case class InvalidSpliceAlreadyInProgress (override val channelId: ByteVector32) extends ChannelException(channelId, "invalid splice attempt: the current splice attempt must be completed or aborted first")

4
eclair-core/src/main/scala/fr/acinq/eclair/channel/fsm/Channel.scala
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@ -986,8 +986,8 @@ class Channel(val nodeParams: NodeParams, val wallet: OnChainChannelFunder with
log.info("rejecting splice request: channel not quiescent")
stay() using d.copy(spliceStatus = SpliceStatus.SpliceAborted) sending TxAbort(d.channelId, InvalidSpliceNotQuiescent(d.channelId).getMessage)
} else if (msg.feerate < nodeParams.currentBitcoinCoreFeerates.minimum) {
log.info("rejecting splice request: feerate too low")
stay() using d.copy(spliceStatus = SpliceStatus.SpliceAborted) sending TxAbort(d.channelId, InvalidSpliceRequest(d.channelId).getMessage)
log.info("rejecting splice request: feerate too low ({} < {})", msg.feerate, nodeParams.currentBitcoinCoreFeerates.minimum)
stay() using d.copy(spliceStatus = SpliceStatus.SpliceAborted) sending TxAbort(d.channelId, InvalidSpliceFeerate(d.channelId, msg.feerate, nodeParams.currentBitcoinCoreFeerates.minimum).getMessage)
} else if (d.commitments.active.count(_.fundingTxIndex == d.commitments.latest.fundingTxIndex) > 1) {
val previousTxs = d.commitments.active.filter(_.fundingTxIndex == d.commitments.latest.fundingTxIndex).map(_.fundingTxId)
log.info("rejecting splice request: the previous splice has unconfirmed rbf attempts (txIds={})", previousTxs.mkString(", "))

4
eclair-core/src/main/scala/fr/acinq/eclair/channel/fund/InteractiveTxBuilder.scala
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@ -795,7 +795,7 @@ private class InteractiveTxBuilder(replyTo: ActorRef[InteractiveTxBuilder.Respon
val nextFeerate = Transactions.fee2rate(sharedTx.fees, tx.weight())
if (nextFeerate <= previousFeerate) {
log.warn("invalid interactive tx: next feerate isn't greater than previous feerate (previous={}, next={})", previousFeerate, nextFeerate)
return Left(InvalidCompleteInteractiveTx(fundingParams.channelId))
return Left(InvalidRbfFeerate(fundingParams.channelId, nextFeerate, previousFeerate))
}
case None =>
val feeWithoutWitness = Transactions.weight2fee(fundingParams.targetFeerate, tx.weight())
@ -811,7 +811,7 @@ private class InteractiveTxBuilder(replyTo: ActorRef[InteractiveTxBuilder.Respon
}
if (sharedTx.fees < minimumFee) {
log.warn("invalid interactive tx: below the target feerate (target={}, actual={})", fundingParams.targetFeerate, Transactions.fee2rate(sharedTx.fees, tx.weight()))
return Left(InvalidCompleteInteractiveTx(fundingParams.channelId))
return Left(InvalidSpliceFeerate(fundingParams.channelId, Transactions.fee2rate(sharedTx.fees, tx.weight()), fundingParams.targetFeerate))
}
}

2
eclair-core/src/test/scala/fr/acinq/eclair/channel/InteractiveTxBuilderSpec.scala
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@ -2669,7 +2669,7 @@ class InteractiveTxBuilderSpec extends TestKitBaseClass with AnyFunSuiteLike wit
probe.expectMsgType[SendMessage]
// Alice --- tx_complete --> Bob
bob ! ReceiveMessage(TxComplete(params.channelId))
assert(probe.expectMsgType[RemoteFailure].cause == InvalidCompleteInteractiveTx(params.channelId))
assert(probe.expectMsgType[RemoteFailure].cause.isInstanceOf[InvalidSpliceFeerate])
}
test("previous attempts not double-spent") {