ziggie
6c28cc4d0b
Also freeze the lnwire and record packages used by the migration. Copy the minimal subset of lnwire files (16) into payments/db/migration1/lnwire/ and all record files (6) into payments/db/migration1/record/. Three lnwire files are trimmed to avoid pulling in the full message-type dispatch tree — all changes are purely subtractive and can be verified with: diff lnwire/message.go payments/db/migration1/lnwire/message.go diff lnwire/writer.go payments/db/migration1/lnwire/writer.go diff lnwire/lnwire.go payments/db/migration1/lnwire/lnwire.go All migration1 files now import only the frozen packages, removing the live dependency on lnwire and record so future changes to those packages cannot affect migration correctness.
100 lines
3.1 KiB
Go
100 lines
3.1 KiB
Go
package record
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import (
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"github.com/btcsuite/btcd/btcec/v2"
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"github.com/lightningnetwork/lnd/tlv"
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)
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const (
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// AmtOnionType is the type used in the onion to reference the amount to
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// send to the next hop.
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AmtOnionType tlv.Type = 2
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// LockTimeTLV is the type used in the onion to reference the CLTV
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// value that should be used for the next hop's HTLC.
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LockTimeOnionType tlv.Type = 4
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// NextHopOnionType is the type used in the onion to reference the ID
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// of the next hop.
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NextHopOnionType tlv.Type = 6
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// EncryptedDataOnionType is the type used to include encrypted data
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// provided by the receiver in the onion for use in blinded paths.
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EncryptedDataOnionType tlv.Type = 10
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// BlindingPointOnionType is the type used to include receiver provided
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// ephemeral keys in the onion that are used in blinded paths.
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BlindingPointOnionType tlv.Type = 12
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// MetadataOnionType is the type used in the onion for the payment
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// metadata.
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MetadataOnionType tlv.Type = 16
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// TotalAmtMsatBlindedType is the type used in the onion for the total
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// amount field that is included in the final hop for blinded payments.
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TotalAmtMsatBlindedType tlv.Type = 18
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)
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// NewAmtToFwdRecord creates a tlv.Record that encodes the amount_to_forward
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// (type 2) for an onion payload.
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func NewAmtToFwdRecord(amt *uint64) tlv.Record {
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return tlv.MakeDynamicRecord(
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AmtOnionType, amt, func() uint64 {
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return tlv.SizeTUint64(*amt)
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},
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tlv.ETUint64, tlv.DTUint64,
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)
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}
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// NewLockTimeRecord creates a tlv.Record that encodes the outgoing_cltv_value
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// (type 4) for an onion payload.
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func NewLockTimeRecord(lockTime *uint32) tlv.Record {
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return tlv.MakeDynamicRecord(
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LockTimeOnionType, lockTime, func() uint64 {
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return tlv.SizeTUint32(*lockTime)
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},
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tlv.ETUint32, tlv.DTUint32,
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)
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}
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// NewNextHopIDRecord creates a tlv.Record that encodes the short_channel_id
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// (type 6) for an onion payload.
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func NewNextHopIDRecord(cid *uint64) tlv.Record {
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return tlv.MakePrimitiveRecord(NextHopOnionType, cid)
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}
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// NewEncryptedDataRecord creates a tlv.Record that encodes the encrypted_data
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// (type 10) record for an onion payload.
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func NewEncryptedDataRecord(data *[]byte) tlv.Record {
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return tlv.MakePrimitiveRecord(EncryptedDataOnionType, data)
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}
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// NewBlindingPointRecord creates a tlv.Record that encodes the blinding_point
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// (type 12) record for an onion payload.
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func NewBlindingPointRecord(point **btcec.PublicKey) tlv.Record {
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return tlv.MakePrimitiveRecord(BlindingPointOnionType, point)
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}
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// NewMetadataRecord creates a tlv.Record that encodes the metadata (type 10)
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// for an onion payload.
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func NewMetadataRecord(metadata *[]byte) tlv.Record {
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return tlv.MakeDynamicRecord(
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MetadataOnionType, metadata,
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func() uint64 {
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return uint64(len(*metadata))
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},
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tlv.EVarBytes, tlv.DVarBytes,
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)
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}
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// NewTotalAmtMsatBlinded creates a tlv.Record that encodes the
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// total_amount_msat for the final an onion payload within a blinded route.
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func NewTotalAmtMsatBlinded(amt *uint64) tlv.Record {
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return tlv.MakeDynamicRecord(
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TotalAmtMsatBlindedType, amt, func() uint64 {
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return tlv.SizeTUint64(*amt)
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},
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tlv.ETUint64, tlv.DTUint64,
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)
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}
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