Re: [PATCH nf] selftests: netfilter: add test case for recent mismatch bug

[Stefano Brivio <sbrivio@redhat.com>]

On Mon, 15 Jul 2024 13:55:29 +0200
Florian Westphal <fw@strlen.de> wrote:

> Without 'netfilter: nf_set_pipapo: fix initial map fill' this fails:
> 
> TEST: reported issues
>   Add two elements, flush, re-add       1s                              [ OK ]
>   net,mac with reload                   1s                              [ OK ]
>   net,port,proto                        1s                              [FAIL]
> post-add: should have returned 10.5.8.0/24 . 51-60 . 6-17  but got table inet filter {
>         set test {
>                 type ipv4_addr . inet_service . inet_proto
>                 flags interval,timeout
>                 elements = { 10.5.7.0/24 . 51-60 . 6-17 }
>         }
> }
> 
> The other sets defined in the selftest do not trigger this bug, it only
> occurs if the first field group bitsize is smaller than the largest
> group bitsize.
> 
> For each added element, check 'get' works and actually returns the
> requested range.
> After map has been filled, check all added ranges can still be
> retrieved.
> 
> For each deleted element, check that 'get' fails.
> 
> Based on a reproducer script from Yi Chen.
> 
> Signed-off-by: Florian Westphal <fw@strlen.de>

Reviewed-by: Stefano Brivio <sbrivio@redhat.com>

-- 
Stefano