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| author | Paolo Abeni <pabeni@redhat.com> | 2026-07-03 08:50:45 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2026-07-03 08:50:46 +0200 |
| commit | 8d96107b5828be42c7ece7bba0e590811052e9dd (patch) | |
| tree | 13cc5c5366158e82ad6ba8821e905b9272811f9c /include/uapi/linux | |
| parent | 2ed8d5c72488bca9666fefa942ed2dc07cc0c56a (diff) | |
| parent | 3373cb099e6692b219328960e1d1ea70b978f20b (diff) | |
Merge branch 'net-report-multicast-group-user-count'
Yuyang Huang says:
====================
net: report multicast group user count
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.
====================
Link: https://patch.msgid.link/20260630110207.37841-1-sigefriedhyy@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/uapi/linux')
| -rw-r--r-- | include/uapi/linux/if_addr.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/if_addr.h b/include/uapi/linux/if_addr.h index aa7958b4e41d..7fb630b7fe31 100644 --- a/include/uapi/linux/if_addr.h +++ b/include/uapi/linux/if_addr.h @@ -36,6 +36,7 @@ enum { IFA_RT_PRIORITY, /* u32, priority/metric for prefix route */ IFA_TARGET_NETNSID, IFA_PROTO, /* u8, address protocol */ + IFA_MC_USERS, /* u32, multicast group users */ __IFA_MAX, }; |