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htlcswitch+server: ensure we always send an update w/ a TempChannelFailure

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In this commit, we ensure that any time we send a TempChannelFailure
that's destined for a multi-hop source sender, then we'll always package
the latest channel update along with it.
This commit is contained in:
Olaoluwa Osuntokun
2018-05-07 20:00:32 -07:00
committed by Wilmer Paulino
parent 27ca61aedf
commit 72f48b6abe
6 changed files with 101 additions and 40 deletions
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15
server.go
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@@ -153,7 +153,8 @@ func newServer(listenAddrs []string, chanDB *channeldb.DB, cc *chainControl,
globalFeatures := lnwire.NewRawFeatureVector()
serializedPubKey := privKey.PubKey().SerializeCompressed()
var serializedPubKey [33]byte
copy(serializedPubKey[:], privKey.PubKey().SerializeCompressed())
// Initialize the sphinx router, placing it's persistent replay log in
// the same directory as the channel graph database.
@@ -175,7 +176,7 @@ func newServer(listenAddrs []string, chanDB *channeldb.DB, cc *chainControl,
// TODO(roasbeef): derive proper onion key based on rotation
// schedule
sphinx: htlcswitch.NewOnionProcessor(sphinxRouter),
lightningID: sha256.Sum256(serializedPubKey),
lightningID: sha256.Sum256(serializedPubKey[:]),
persistentPeers: make(map[string]struct{}),
persistentPeersBackoff: make(map[string]time.Duration),
@@ -209,7 +210,7 @@ func newServer(listenAddrs []string, chanDB *channeldb.DB, cc *chainControl,
debugPre[:], debugHash[:])
}
htlcSwitch, err := htlcswitch.New(htlcswitch.Config{
s.htlcSwitch, err = htlcswitch.New(htlcswitch.Config{
DB: chanDB,
SelfKey: s.identityPriv.PubKey(),
LocalChannelClose: func(pubKey []byte,
@@ -234,14 +235,14 @@ func newServer(listenAddrs []string, chanDB *channeldb.DB, cc *chainControl,
pubKey[:], err)
}
},
FwdingLog: chanDB.ForwardingLog(),
SwitchPackager: channeldb.NewSwitchPackager(),
ExtractErrorEncrypter: s.sphinx.ExtractErrorEncrypter,
FwdingLog: chanDB.ForwardingLog(),
SwitchPackager: channeldb.NewSwitchPackager(),
ExtractErrorEncrypter: s.sphinx.ExtractErrorEncrypter,
FetchLastChannelUpdate: fetchLastChanUpdate(s, serializedPubKey),
})
if err != nil {
return nil, err
}
s.htlcSwitch = htlcSwitch
// If external IP addresses have been specified, add those to the list
// of this server's addresses. We need to use the cfg.net.ResolveTCPAddr