mirrors/lnd
1
0
Fork 0
mirror of https://github.com/lightningnetwork/lnd.git synced 2025-03-04 09:48:19 +01:00
Code Issues Projects Releases Wiki Activity

routerrpc: de-duplicate htlc held by interceptor

Browse source 
This commit ensures htlcs currently held by the interceptor
Are not sent again. This prevents potential races in the user code that
may lead to loosing funds.
This commit is contained in:
Roei Erez 2021-09-29 17:24:55 +03:00 • committed by Olaoluwa Osuntokun
parent b45c4ea7e3
commit 1f1b33bf85
No known key found for this signature in database
GPG key ID: 3BBD59E99B280306
1 changed files with 5 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
lnrpc/routerrpc/forward_interceptor.go
View file

@ -150,6 +150,11 @@ func (r *forwardInterceptor) holdAndForwardToClient(
htlc := forward.Packet() htlc := forward.Packet()
inKey := htlc.IncomingCircuit inKey := htlc.IncomingCircuit
// ignore already held htlcs.
if _, ok := r.holdForwards[inKey]; ok {
return nil
}
// First hold the forward, then send to client. // First hold the forward, then send to client.
r.holdForwards[inKey] = forward r.holdForwards[inKey] = forward
interceptionRequest := &ForwardHtlcInterceptRequest{ interceptionRequest := &ForwardHtlcInterceptRequest{