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htlcswitch: expose custom channel blob from link

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George Tsagkarelis 2024-05-02 16:52:47 +02:00 committed by Oliver Gugger
parent 3c6d49775e
commit ec7dc031c9
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3 changed files with 38 additions and 0 deletions
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11
htlcswitch/interfaces.go
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@ -12,6 +12,7 @@ import (
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/lightningnetwork/lnd/record"
"github.com/lightningnetwork/lnd/tlv"
)
// InvoiceDatabase is an interface which represents the persistent subsystem
@ -271,6 +272,16 @@ type ChannelLink interface {
// have buffered messages.
AttachMailBox(MailBox)
// FundingCustomBlob returns the custom funding blob of the channel that
// this link is associated with. The funding blob represents static
// information about the channel that was created at channel funding
// time.
FundingCustomBlob() fn.Option[tlv.Blob]
// CommitmentCustomBlob returns the custom blob of the current local
// commitment of the channel that this link is associated with.
CommitmentCustomBlob() fn.Option[tlv.Blob]
// Start/Stop are used to initiate the start/stop of the channel link
// functioning.
Start() error

13
htlcswitch/link.go
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@ -3775,3 +3775,16 @@ func (l *channelLink) fail(linkErr LinkFailureError,
l.failed = true
l.cfg.OnChannelFailure(l.ChanID(), l.ShortChanID(), linkErr)
}
// FundingCustomBlob returns the custom funding blob of the channel that this
// link is associated with. The funding blob represents static information about
// the channel that was created at channel funding time.
func (l *channelLink) FundingCustomBlob() fn.Option[tlv.Blob] {
return l.channel.State().CustomBlob
}
// CommitmentCustomBlob returns the custom blob of the current local commitment
// of the channel that this link is associated with.
func (l *channelLink) CommitmentCustomBlob() fn.Option[tlv.Blob] {
return l.channel.LocalCommitmentBlob()
}

14
htlcswitch/mock.go
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@ -27,6 +27,7 @@ import (
"github.com/lightningnetwork/lnd/channeldb/models"
"github.com/lightningnetwork/lnd/clock"
"github.com/lightningnetwork/lnd/contractcourt"
"github.com/lightningnetwork/lnd/fn"
"github.com/lightningnetwork/lnd/htlcswitch/hop"
"github.com/lightningnetwork/lnd/invoices"
"github.com/lightningnetwork/lnd/lnpeer"
@ -35,6 +36,7 @@ import (
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/lightningnetwork/lnd/ticker"
"github.com/lightningnetwork/lnd/tlv"
)
func isAlias(scid lnwire.ShortChannelID) bool {
@ -912,6 +914,10 @@ func (f *mockChannelLink) ChannelPoint() wire.OutPoint {
return wire.OutPoint{}
}
func (f *mockChannelLink) ChannelCustomBlob() fn.Option[tlv.Blob] {
return fn.Option[tlv.Blob]{}
}
func (f *mockChannelLink) Stop() {}
func (f *mockChannelLink) EligibleToForward() bool { return f.eligible }
func (f *mockChannelLink) MayAddOutgoingHtlc(lnwire.MilliSatoshi) error { return nil }
@ -942,6 +948,14 @@ func (f *mockChannelLink) OnCommitOnce(LinkDirection, func()) {
// TODO(proofofkeags): Implement
}
func (f *mockChannelLink) FundingCustomBlob() fn.Option[tlv.Blob] {
return fn.None[tlv.Blob]()
}
func (f *mockChannelLink) CommitmentCustomBlob() fn.Option[tlv.Blob] {
return fn.None[tlv.Blob]()
}
var _ ChannelLink = (*mockChannelLink)(nil)
func newDB() (*channeldb.DB, func(), error) {