[custom channels 5/5]: merge custom channel staging branch into master #8960
Commits on Sep 20, 2024
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routing: add htlcAmt to PaymentBandwidth method of TlvTrafficShaper
This commit was added to the 0-19-staging branch recently and therefore didn't make it into a previous part yet. So it's unrelated to the changes in this part but is required for the whole custom channel saga.
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lnwire: modify TestLightningWireProtocol to use sub-tests
This way, it's possible to run induvidual tests to target failures.
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contractcourt: convert taprootBriefcase to use new tlv record type
This commit doesn't yet go all the way to modify all the other records quite yet.
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lnwallet: add new aux resolver interface
This will be used by external callers to modify the way we resolve contracts on chain. For a given contract, we'll store an extra "blob", that will later be presented during the sweeping phase.
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contractcourt: add CommitBlob to taprootBriefcase
This'll be used to store the extra resolution information for the commitment outputs.
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lnwallet+peer: move internalKeyForAddr to lnwallet package
This way we can re-use it. We also make it slightly more generalized.
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input: refactor all inputs to use MakeBaseInput, add opts
In this commit, we refactor all the other constructors for the input to use MakeBaseInput. We also add a new set of functional options as well. This'll be useful later on to ensure that new options are properly applied to all the input types.
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input: add ResolutionBlob method to inputKit
We also update breachedOutput w/ the new API.
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server+sweep: convert GenSweepScript to use new addr type
We convert it to use lnwallet.AddrWithKey, as in the future, knowing the internal key for an address will be useful.
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sweep: add new AuxSweeper interface
In this commit, we add a new AuxSweeper interface. This'll take a set of inputs, and a change addr for the sweep transaction, then optionally return a new sweep output to be added to the sweep transaction. We also add a new NotifyBroadcast method. This'll be used to notify that we're _about_ to broadcast a sweeping transaction. The set of inputs is passed in, which allows the caller to prepare for the ultimate broadcast of the sweeping transaction. We also add ExtraTxOut to BumpRequest pass fees to NotifyBroadcast. This allows the callee to know the total fee of the sweeping transaction.
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sweep: update sweeper to use AuxSweeper to add extra change addr
In this commit, we start to use the AuxSweeper (if present) to obtain a new extra change addr we should add to the sweeping transaction. With this, we'll take the set of inputs and our change addr, and then maybe gain a new change addr to add to the sweep transaction. The extra change addr will be treated as an extra required tx out, shared across all the relevant inputs. This'll also be used in NeedWalletInput to make sure that we add an extra input if needed to be able to pay for the change addr.
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contractcourt: pause resolution for HTLCs w/ custom records
This is a hold over until the aux resolution is finalized for HTLC outputs.
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contractcourt: update GenSweepScript to return internal key
For the upcoming aux sweeper integration, the internal key is needed for the call backs.
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contractcourt: integration aux sweeper to breach arb
Similar to the sweeper, when we're about to make a new breach transaction, we ask the sweeper for a new change address, if it has one. Then when we go to publish, we notify broadcast.
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feature: add awareness of new taproot chans overlay feature bit
This bit will be false by default in current production deployments.
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lnd: signal taproot overlay chans based on config
We also add a sanity check to make sure they can't be signaled without the aux interfaces.
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