lnwallet/chancloser: create unique ServiceKey for the RBF chan closer
What the developer wrote
Authored by Olaoluwa Osuntokun
lnwallet/chancloser: create unique ServiceKey for the RBF chan closer
This can be used to allow any system to send a message to the RBF chan
closer if it knows the proper service key. In the future, we can use
this to redo the msgmux.Router in terms of the new actor abstractions.
What changed, and why it matters
This commit adds a single type alias (a nickname for an existing type) in the Lightning Network Daemon's channel closer code. It does not change any behavior, fix any bug, or alter how messages are processed. It is a small code-cleanup/refactoring step to prepare for future architectural changes.
No security action needed. Review as normal refactoring if auditing the RBF cooperative close code path.
Security signals we found
No strong security signals were identified.
Evidence from the diff
The diff adds ChanCloserActorMsg as a type alias for protofsm.ActorMessage[ProtocolEvent] in lnwallet/chancloser/rbf_coop_states.go. The commit message frames this as enabling the RBF channel-closer state machine executor to be passed around as an actor and as groundwork for eventually rewriting msgmux.Router with new actor abstractions. No functional code, state-machine logic, routing, validation, or cryptographic handling is modified.
Changed components
lnwallet/chancloser/rbf_coop_states.goInspect captured patch +4 / −0
diff --git a/lnwallet/chancloser/rbf_coop_states.go b/lnwallet/chancloser/rbf_coop_states.go
index 61f7718..9319c1d 100644
--- a/lnwallet/chancloser/rbf_coop_states.go
+++ b/lnwallet/chancloser/rbf_coop_states.go
@@ -1026,3 +1026,7 @@ type RbfEvent = protofsm.EmittedEvent[ProtocolEvent]
// RbfStateSub is a type alias for the state subscription type of the RBF chan
// closer.
type RbfStateSub = protofsm.StateSubscriber[ProtocolEvent, *Environment]
+
+// ChanCloserActorMsg is an adapter to enable the state machine executor that
+// runs this state machine to be passed around as an actor.
+type ChanCloserActorMsg = protofsm.ActorMessage[ProtocolEvent]
Why this scored 15/100
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