On Thu, Aug 10, 2017 at 05:24:55PM +0200, Vitaly Kuznetsov wrote: > Andrew Lunn <and...@lunn.ch> writes: > > >> We are - rtnetlink_event() does the job. We, however, don't have a > >> special IFLA_EVENT_* for name change and end up with IFLA_EVENT_NONE. > > > > What is in this event? Old and new name? Just the new name? > > Basically, it's everything we know about the interface - type, index, > name, mtu, qdisc, ... - see rtnl_fill_ifinfo(). Back to your question - > it's only the new name.
So the program needs to keep track of ifindex to know which interface has changed name. Doable. I still expect this has the potential to break something. You probably should be asking on linux-api for the API experts opinion. Andrew