Counterpart of afl++'s rpc_statsd?

[Evian-Zhang]

I wonder if there is a counterpart of afl++'s rpc_statsd in LibAFL? I noted there is a prometheus monitor, but as far as I understand, this is not what I want.

The afl++'s rpc statsd has the following abilities:

• A TUI monitor and a statsd monitor at the same time.
• The statsd monitor sends the metrics (to a statsd aggregator), instead of host the metrics

Currently, the prometheus monitor is not good for incremental fuzzing, i.e., there may be several new targets to be fuzzed every day, so I want to add those stats as well. However, in current solution, each fuzzing instance needs a separate port, and we need to aggregate stats from all ports to show a total information.

[domenukk]

Interesting, I don't personally use either statsd nor prometheus.
I though they are roughly equivalent but looking at the code you're right.

TL;DR: I don't think we have that right now.
Should be rather easy to implement though, probably top of the prometheus monitor, or one of the OnDisk monitors.
(Personally I don't have time atm / no test setup)

[Evian-Zhang]

Thank you for your reply:)

And yet there is another question: can we have two or more monitors at the same time? The tui monitor and the to-be-implemented statsd monitor should both be there in my experience.

We could look at the statsd monitor for the overall-information of all fuzzing instances we are running, and look at the individual tui monitor for detail information.

[domenukk]

You could build a simple monitor that takes two child monitors and forwards every incoming message to both.
That would be very useful to have in any case