From: Christian Brauner <christian.brau...@ubuntu.com> Date: Mon, 29 Jan 2018 18:07:20 +0100
> - Backwards Compatibility: > If userspace wants to determine whether RTM_NEWLINK supports the > IFLA_IF_NETNSID property they should first send an RTM_GETLINK request > with IFLA_IF_NETNSID on lo. If either EACCESS is returned or the reply > does not include IFLA_IF_NETNSID userspace should assume that > IFLA_IF_NETNSID is not supported on this kernel. > If the reply does contain an IFLA_IF_NETNSID property userspace > can send an RTM_NEWLINK with a IFLA_IF_NETNSID property. If they receive > EOPNOTSUPP then the kernel does not support the IFLA_IF_NETNSID property > with RTM_NEWLINK. Userpace should then fallback to other means. > > - Security: > Callers must have CAP_NET_ADMIN in the owning user namespace of the > target network namespace. > > Signed-off-by: Christian Brauner <christian.brau...@ubuntu.com> Applied.
