selftest: tun: Add test for receiving gso packet from tun

The test validate that GSO information are correctly exposed
when reading packets from a TUN device.

Signed-off-by: Xu Du <xudu@redhat.com>
Link: https://patch.msgid.link/fe75ac66466380490eba858eef50596a1bfbd071.1768979440.git.xudu@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Xu Du 2026-01-21 18:05:00 +08:00 • committed by Jakub Kicinski
commit 6bdd7ae605