Fix re-entrant `GetOrHandshake` issues#1044

Merged

nbrownus merged 5 commits intomasterfrom reentrant-getorhandshake

Dec 19, 2023

+74-36

Commits on Dec 17, 2023

Dont hold a read lock on the main hostmap when starting a handshake
nbrownus
committed
Sending a test packet could trigger a relay lookup and a double hostmap read lock
nbrownus
committed

Commits on Dec 18, 2023

Commits on Dec 19, 2023

Add an early exit for lighthouse ips
nbrownus
committed