[took off acpi list] On Tue, 2007-06-19 at 12:20 -0400, jamal wrote:
> There is one default mcast group per entity. Most users only need that > one. Ok. That's definitely a bug in nl80211 as we have it in development right now. Btw, what happens if the group id gets larger than 31? > If you need more, we go one of two ways: > a) Register for multiple IDs with the code as is. > b) we could add a "reserve multicast group" interface in the kernel. > > Thoughts? I'd really like to be able to reserve multicast groups with special semantics too, especially I might want to permit/deny non-CAP_NET_ADMIN users from binding specific multicast groups. That isn't actually possible with netlink nor genetlink right now afaict. If we register multiple IDs then we'll end up filling up the generic netlink family space really soon. I was under the impression that generic netlink was basically open-ended because the family is a large enough number, but with this arbitrary limit on multicast groups that's really not true and we might run out of multicast groups fairly soon since most users of generic netlink will want at least one... johannes
signature.asc
Description: This is a digitally signed message part
