On Fri, Jul 3, 2026 at 3:50 PM Paolo Abeni <[email protected]> wrote: > > On 6/30/26 1:02 PM, Yuyang Huang wrote: > > RTM_GETMULTICAST reports IPv4 and IPv6 multicast group membership, but > > does not include the per-group user count. Userspace therefore still has > > to parse /proc/net/igmp and /proc/net/igmp6 to obtain the Users column. > > In particular, this prevents iproute2 from moving "ip maddr show" > > entirely from procfs to rtnetlink. > > > > Add IFA_MC_USERS to carry the user count in RTM_GETMULTICAST dumps and > > RTM_NEWMULTICAST / RTM_DELMULTICAST notifications for both address > > families. Update the rt-addr YNL specification and extend the rtnetlink > > selftest to verify that two joins increase the reported count by two. > > Will you take care of implementing the iproute2 bits, too?
Yes, I actually have something WIP for iproute2 and realized it cannot be done due to the missing fields. That's why I sent out this patch series first.
