Hi Marc,
Thanks for the detailed and fast feedback and for the opportunity to work on
this.
The persistent counter approach makes sense to me, and I agree that the UID
pool mechanism is not the right abstraction for this. I’ll look into the
existing state file implementation and how separate counters for regular and
system UIDs could fit into it.
I’ll also investigate the current locking behavior of adduser and make sure
concurrent invocations cannot result in the same UID being allocated.
For existing installations, I’ll look at initializing the counters by scanning
from the configured FIRST_*_UID range until the first available UID is found,
as you suggested.
Thanks again. I’ll get started on it.
Greetings,
Juan Muñoz
Debian: Juaesm
