Re: [PATCH 1/3] netfilter: xt_ipvs (netfilter matcher for IPVS)

[Jan Engelhardt <jengelh@xxxxxxxxxx>]

On Wednesday 2009-09-02 17:36, Patrick McHardy wrote:
>> 
>> Nice, I'll use par->family.
>> 
>> So in theory I do not even need a check like the following in the beginning?
>> 
>>      if (family != NFPROTO_IPV4
>> #ifdef CONFIG_IP_VS_IPV6
>>          && family != NFPROTO_IPV6
>> #endif
>>              ) {
>>              match = false;
>>              goto out;
>>      }
>
>With the AF_UNSPEC registration of your match, it might be used

par->family always contains the NFPROTO of the invoking implementation,
which can never be UNSPEC (except, in future, xtables2 ;-)

par->match->family however may be UNSPEC if the module works that way.
Which is why we have par->family.
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