In article <19991028090509.A10201@antioche.lip6.fr>,
>
>These aren't grovelers. They use either sysctl or the routing socket
>to retreive 'struct if_msghdr *' data.
>What would need versioning here are the sysctl MIB and the routing socket
>message. It can be done, I just wonder if it's usefull.
>

sysctl and the routing socket are exported interfaces. You need to version
them.

The sysctl one is easy: NET_RT_IFLIST becomes NET_RT_OIFLIST, and
we define a new number of NET_RT_IFLIST. Then using struct if_msghdr15
(the old if_msghdr) implement NET_RT_OIFLIST, if COMPAT_15 is defined.

The routing socket one is RTM_IFINFO -> RTM_OLDIFINFO etc...

christos