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lnwallet: store aux sig in custom data within the HTLC #8926

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merged 2 commits into from
Jul 23, 2024
Merged

lnwallet: store aux sig in custom data within the HTLC #8926

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115bad5
build: update to latest TLV version
Roasbeef Jul 23, 2024
6a8da1c
lnwallet: store aux sig in custom data within the HTLC
Roasbeef Jul 23, 2024
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2 changes: 1 addition & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ require (
github.com/lightningnetwork/lnd/queue v1.1.1
github.com/lightningnetwork/lnd/sqldb v1.0.2
github.com/lightningnetwork/lnd/ticker v1.1.1
github.com/lightningnetwork/lnd/tlv v1.2.5
github.com/lightningnetwork/lnd/tlv v1.2.6
github.com/lightningnetwork/lnd/tor v1.1.2
github.com/ltcsuite/ltcd v0.0.0-20190101042124-f37f8bf35796
github.com/miekg/dns v1.1.43
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4 changes: 2 additions & 2 deletions go.sum
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Expand Up @@ -460,8 +460,8 @@ github.com/lightningnetwork/lnd/sqldb v1.0.2 h1:PfuYzScYMD9/QonKo/QvgsbXfTnH5Dfl
github.com/lightningnetwork/lnd/sqldb v1.0.2/go.mod h1:V2Xl6JNWLTKE97WJnwfs0d0TYJdIQTqK8/3aAwkd3qI=
github.com/lightningnetwork/lnd/ticker v1.1.1 h1:J/b6N2hibFtC7JLV77ULQp++QLtCwT6ijJlbdiZFbSM=
github.com/lightningnetwork/lnd/ticker v1.1.1/go.mod h1:waPTRAAcwtu7Ji3+3k+u/xH5GHovTsCoSVpho0KDvdA=
github.com/lightningnetwork/lnd/tlv v1.2.5 h1:/VsoWw628t78OiDN90pHDbqwOcuZ9JMicxXZVQjBwX0=
github.com/lightningnetwork/lnd/tlv v1.2.5/go.mod h1:/CmY4VbItpOldksocmGT4lxiJqRP9oLxwSZOda2kzNQ=
github.com/lightningnetwork/lnd/tlv v1.2.6 h1:icvQG2yDr6k3ZuZzfRdG3EJp6pHurcuh3R6dg0gv/Mw=
github.com/lightningnetwork/lnd/tlv v1.2.6/go.mod h1:/CmY4VbItpOldksocmGT4lxiJqRP9oLxwSZOda2kzNQ=
github.com/lightningnetwork/lnd/tor v1.1.2 h1:3zv9z/EivNFaMF89v3ciBjCS7kvCj4ZFG7XvD2Qq0/k=
github.com/lightningnetwork/lnd/tor v1.1.2/go.mod h1:j7T9uJ2NLMaHwE7GiBGnpYLn4f7NRoTM6qj+ul6/ycA=
github.com/ltcsuite/ltcd v0.0.0-20190101042124-f37f8bf35796 h1:sjOGyegMIhvgfq5oaue6Td+hxZuf3tDC8lAPrFldqFw=
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4 changes: 4 additions & 0 deletions lnwallet/aux_signer.go
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Expand Up @@ -125,6 +125,10 @@ func NewAuxVerifyJob(sig fn.Option[tlv.Blob], keyRing CommitmentKeyRing,
}
}

// htlcCustomSigType is the TLV type that is used to encode the custom HTLC
// signatures within the custom data for an existing HTLC.
var htlcCustomSigType tlv.TlvType65543

// AuxSigner is an interface that is used to sign and verify HTLCs for custom
// channels. It is similar to the existing SigPool, but uses opaque blobs to
// shuffle around signature information and other metadata.
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8 changes: 8 additions & 0 deletions lnwallet/channel.go
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Expand Up @@ -5496,6 +5496,14 @@ func genHtlcSigValidationJobs(chanState *channeldb.OpenChannel,
localCommitmentView.customBlob, auxLeaf,
)

// As this HTLC has a custom sign associated with it,
// store in the custom records map so we can write to
// disk later.
sigType := htlcCustomSigType.TypeVal()
htlc.CustomRecords[uint64(sigType)] = auxSig.UnwrapOr(
nil,
)

auxVerifyJobs = append(auxVerifyJobs, auxVerifyJob)
}

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