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blindedpath: remove blockexpiry check.

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Removes a check where we would NOT allow to create a blinded invoice
with an expiry (invoice expiry in seconds considered as block time)
lower than the min_final_ctlv_delta.
This commit is contained in:
ziggie
2024-08-22 17:45:45 +02:00
committed by Olaoluwa Osuntokun
parent dbe4ca3efe
commit 38c81516ec
1 changed files with 10 additions and 8 deletions
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18
routing/blindedpath/blinded_path.go
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@@ -82,7 +82,16 @@ type BuildBlindedPathCfg struct {
MinFinalCLTVExpiryDelta uint32
// BlocksUntilExpiry is the number of blocks that this blinded path
// should remain valid for.
// should remain valid for. This is a relative number of blocks. This
// number in addition with a potential minimum cltv delta for the last
// hop and some block padding will be the payment constraint which is
// part of the blinded hop info. Every htlc using the provided blinded
// hops cannot have a higher cltv delta otherwise it will get rejected
// by the forwarding nodes or the final node.
//
// This number should at least be greater than the invoice expiry time
// so that the blinded route is always valid as long as the invoice is
// valid.
BlocksUntilExpiry uint32
// MinNumHops is the minimum number of hops that each blinded path
@@ -105,13 +114,6 @@ type BuildBlindedPathCfg struct {
func BuildBlindedPaymentPaths(cfg *BuildBlindedPathCfg) (
[]*zpay32.BlindedPaymentPath, error) {
if cfg.MinFinalCLTVExpiryDelta >= cfg.BlocksUntilExpiry {
return nil, fmt.Errorf("blinded path CLTV expiry delta (%d) "+
"must be greater than the minimum final CLTV expiry "+
"delta (%d)", cfg.BlocksUntilExpiry,
cfg.MinFinalCLTVExpiryDelta)
}
// Find some appropriate routes for the value to be routed. This will
// return a set of routes made up of real nodes.
routes, err := cfg.FindRoutes(cfg.ValueMsat)