kernel_samsung_a53x/tools/testing
Alessandro Carminati (Red Hat) 4a6ae11d96 selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh
[ Upstream commit f803bcf9208a2540acb4c32bdc3616673169f490 ]

In some systems, the netcat server can incur in delay to start listening.
When this happens, the test can randomly fail in various points.
This is an example error message:

   # ip gre none gso
   # encap 192.168.1.1 to 192.168.1.2, type gre, mac none len 2000
   # test basic connectivity
   # Ncat: Connection refused.

The issue stems from a race condition between the netcat client and server.
The test author had addressed this problem by implementing a sleep, which
I have removed in this patch.
This patch introduces a function capable of sleeping for up to two seconds.
However, it can terminate the waiting period early if the port is reported
to be listening.

Signed-off-by: Alessandro Carminati (Red Hat) <alessandro.carminati@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240314105911.213411-1-alessandro.carminati@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-19 14:19:06 +01:00
..
fault-injection Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
ktest ktest: force $buildonly = 1 for 'make_warnings_file' test type 2024-11-19 09:23:15 +01:00
kunit Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
kunit_mainline Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
nvdimm Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
radix-tree Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
scatterlist Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00
selftests selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh 2024-11-19 14:19:06 +01:00
vsock Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00