Re: [PATCH v12 7/9] tcp: forward external source MAC address through tap interface

On Thu, Oct 02, 2025 at 08:34:10PM -0400, Jon Maloy wrote:

We forward the incoming mac address through the tap interface when receiving incoming packets from network local hosts.

This is a part of the solution to bug https://bugs.passt.top/show_bug.cgi?id=120

Signed-off-by: Jon Maloy Reviewed-by: David Gibson

[snip]

+ /* Find if neighbour table has a recorded MAC address */ + if (MAC_IS_UNDEF(omac)) + fwd_neigh_mac_get(c, &tapside->oaddr, omac);

Again, this is looking up with a guest side address, not host side. -- David Gibson (he or they) | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you, not the other way | around. http://www.ozlabs.org/~dgibson