On Wed, Dec 20, 2023 at 08:20:10PM +0100, Jan Engelhardt wrote:
>
> On Wednesday 2023-12-20 17:06, Phil Sutter wrote:
>
> >When parsing for XTTYPE_HOST(MASK), the return value of afinfo_family()
> >is used to indicate the expected address family.
> >
> >Make guided option parser expect IPv4 by default for ebtables as this is
> >the more common case.
>
> ebtables is about Ethernet addresses mostly,
> and ebt_ip6 and ebt_ip have the same priority really.
That's right, but there's also libebt_arp which expects IPv4 address
in --arp-ip-src and --arp-ip-dst options.
I was a bit undecided about this solution because libebt_ip6's
workaround is fugly:
| xtables_set_nfproto(NFPROTO_IPV6);
| xtables_option_parse(cb);
| xtables_set_nfproto(NFPROTO_BRIDGE);
OTOH introducing XTTYPE_HOST{,MASK}{4,6} to force the expected address
family despite afinfo->family value seemed over-engineering given the
single user I had to cover after treating NFPROTO_BRIDGE as IPv4 by
default.
Cheers, Phil
