hello folks.

Can anyone please shed lights on this?

thanks,
ani


On Fri, Jul 26, 2013 at 2:30 PM, Ani Sinha [off-list ref] wrote:

Hi folks,

We know that (since Linux 3.0) on raw sockets, the recvmsg() api
returns the vlan tag information of the packet in the packet aux data.
I looked at the kernel code and it seems on the TX side, in sendmsg(),
we do not accept the vlan tag data from userland for a raw packet. So
if the userland sends a raw packet using sendmsg() with vlan tag
information in aux data, it will be discarded.

Is my analysis correct?

Cheers,
Ani

-- 
Ani