passt/doc/platform-requirements/udp-close-dup.c, branch 2025_05_12.8ec1341 Plug A Simple Socket Transport doc: Test behaviour of closing duplicate UDP sockets 2024-07-17T13:30:14+00:00 David Gibson david@gibson.dropbear.id.au 2024-07-17T04:52:22+00:00 01e5611ec3912f02fb683305db8913f8eca15fee To simplify lifetime management of "listening" UDP sockets, UDP flow support needs to duplicate existing bound sockets. Those duplicates will be close()d when their corresponding flow expires, but we expect the original to still receive datagrams as always. That is, we expect the close() on the duplicate to remove the duplicated fd, but not to close the underlying UDP socket. Add a test program to doc/platform-requirements to verify this requirement. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com> 
To simplify lifetime management of "listening" UDP sockets, UDP flow
support needs to duplicate existing bound sockets.  Those duplicates will
be close()d when their corresponding flow expires, but we expect the
original to still receive datagrams as always.  That is, we expect the
close() on the duplicate to remove the duplicated fd, but not to close the
underlying UDP socket.

Add a test program to doc/platform-requirements to verify this requirement.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>