Re: [PATCH passt v2 0/7] Add fuzzing

["Richard W.M. Jones" <rjones@redhat.com>]

I forgot to mention that I didn't sort out test cases yet.  The
current test case (single zero length packet) is not ideal.

We might have a single test case, say a single TCP SYN packet.

However if there are distinct areas of functionality in passt (eg. TCP
connect, ARP, DNS, DHCP, ...), *and* if those are geometrically very
far apart in the search space, then you could argue for having one
test case per major feature.  Capturing that into tap files will be a
fun afternoon for someone.

More on this topic here:
https://aflplus.plus/docs/fuzzing_in_depth/#2-preparing-the-fuzzing-campaign

- - -

Also ...  while we do have --fd functionality, even better would be to
modify passt so it can read input from stdin and drop output.  See:
https://aflplus.plus/docs/best_practices/#fuzzing-a-network-service
The socketpair / --fd approach is a bit cleaner.

Rich.

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