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feature: define new feature bit for bolt11 blinded paths

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We need a new feature bit for BOLT11 invoices in order to indicate that
they contain the new blinded path tagged field. Tagged fields pre-date
TLV and so nodes who dont understand them will simply skip them.
Therefore the feature bit helps them to fail fast.
This commit is contained in:
Elle Mouton
2024-07-04 14:12:18 +02:00
parent 188dd44b42
commit 9192c165ff
4 changed files with 27 additions and 10 deletions
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26
lnwire/features.go
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@@ -223,7 +223,7 @@ const (
// able and willing to accept keysend payments.
KeysendOptional = 55
// ScriptEnforcedLeaseOptional is an optional feature bit that signals
// ScriptEnforcedLeaseRequired is a required feature bit that signals
// that the node requires channels having zero-fee second-level HTLC
// transactions, which also imply anchor commitments, along with an
// additional CLTV constraint of a channel lease's expiration height
@@ -241,18 +241,17 @@ const (
// TODO: Decide on actual feature bit value.
ScriptEnforcedLeaseOptional FeatureBit = 2023
// SimpleTaprootChannelsRequredFinal is a required bit that indicates
// SimpleTaprootChannelsRequiredFinal is a required bit that indicates
// the node is able to create taproot-native channels. This is the
// final feature bit to be used once the channel type is finalized.
SimpleTaprootChannelsRequiredFinal = 80
// SimpleTaprootChannelsOptionalFinal is an optional bit that indicates
// the node is able to create taproot-native channels. This is the
// final
// feature bit to be used once the channel type is finalized.
// final feature bit to be used once the channel type is finalized.
SimpleTaprootChannelsOptionalFinal = 81
// SimpleTaprootChannelsRequredStaging is a required bit that indicates
// SimpleTaprootChannelsRequiredStaging is a required bit that indicates
// the node is able to create taproot-native channels. This is a
// feature bit used in the wild while the channel type is still being
// finalized.
@@ -260,11 +259,20 @@ const (
// SimpleTaprootChannelsOptionalStaging is an optional bit that
// indicates the node is able to create taproot-native channels. This
// is a feature
// bit used in the wild while the channel type is still being
// finalized.
// is a feature bit used in the wild while the channel type is still
// being finalized.
SimpleTaprootChannelsOptionalStaging = 181
// Bolt11BlindedPathsRequired is a required feature bit that indicates
// that the node is able to understand the blinded path tagged field in
// a BOLT 11 invoice.
Bolt11BlindedPathsRequired = 260
// Bolt11BlindedPathsOptional is an optional feature bit that indicates
// that the node is able to understand the blinded path tagged field in
// a BOLT 11 invoice.
Bolt11BlindedPathsOptional = 261
// MaxBolt11Feature is the maximum feature bit value allowed in bolt 11
// invoices.
//
@@ -331,6 +339,8 @@ var Features = map[FeatureBit]string{
SimpleTaprootChannelsOptionalFinal: "simple-taproot-chans",
SimpleTaprootChannelsRequiredStaging: "simple-taproot-chans-x",
SimpleTaprootChannelsOptionalStaging: "simple-taproot-chans-x",
Bolt11BlindedPathsOptional: "bolt-11-blinded-paths",
Bolt11BlindedPathsRequired: "bolt-11-blinded-paths",
}
// RawFeatureVector represents a set of feature bits as defined in BOLT-09. A