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Htlcswitch: rename Deobfuscator and Obfuscator interfaces

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This commit renames the Deobfuscator interface to ErrorDecrypter and
the Obfuscator interface to ErrorEncrypter. With this rename, the
purpose of these two interfaces are a bit clearer.

Additionally, DecryptError (which was formerly Deobfuscate) now
directly returns an ForwardingError type instead of the
lnwire.FailureMessage.
This commit is contained in:
Olaoluwa Osuntokun
2017-10-10 19:36:52 -07:00
parent 30a46291f8
commit 12ae63101d
9 changed files with 109 additions and 93 deletions
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9
htlcswitch/link.go
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@@ -103,7 +103,7 @@ type ChannelLinkConfig struct {
// DecodeOnionObfuscator function is responsible for decoding HTLC
// Sphinx onion blob, and creating onion failure obfuscator.
DecodeOnionObfuscator func(r io.Reader) (Obfuscator, lnwire.FailCode)
DecodeOnionObfuscator func(r io.Reader) (ErrorEncrypter, lnwire.FailCode)
// GetLastChannelUpdate retrieves the latest routing policy for this
// particular channel. This will be used to provide payment senders our
@@ -570,7 +570,7 @@ func (l *channelLink) handleDownStreamPkt(pkt *htlcPacket, isReProcess bool) {
// Otherwise, we'll send back a proper failure
// message.
default:
reason, err = obfuscator.InitialObfuscate(failure)
reason, err = obfuscator.EncryptFirstHop(failure)
if err != nil {
log.Errorf("unable to obfuscate error: %v", err)
return
@@ -1461,8 +1461,9 @@ func (l *channelLink) processLockedInHtlcs(
// sendHTLCError functions cancels HTLC and send cancel message back to the
// peer from which HTLC was received.
func (l *channelLink) sendHTLCError(rHash [32]byte, failure lnwire.FailureMessage,
obfuscator Obfuscator) {
reason, err := obfuscator.InitialObfuscate(failure)
e ErrorEncrypter) {
reason, err := e.EncryptFirstHop(failure)
if err != nil {
log.Errorf("unable to obfuscate error: %v", err)
return