[lwip-devel] [task #14724] socket level ARP cache APIs

[Joel Cunningham]

Follow-up Comment #2, task #14724 (project lwip):

That's a good point.  The benefit of implementing the ARP ioctls would be that
developers could share/reuse Linux based (or other old UNIX) application code
that makes use of the ARP ioctls without having to modify it for the netconn
API.

Given that I don't have any of this application code currently and maybe since
it's not common given the preferred methods of routing/netlink sockets, a
netconn API would be good enough for now.

Also, I'm thinking of only supporting this for LWIP_TCPIP_CORE_LOCKING to
avoid the usual new API burden for !LWIP_TCPIP_CORE_LOCKING (which is a new
struct message type and macros to abstract the  memory pool case for the
LWIP_MPU_COMPATIBLE)

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