linux/tools/testing
Alessandro Carminati (Red Hat) f4258833ff selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh
[ Upstream commit f803bcf920 ]

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>
2024-07-05 09:14:25 +02:00
..
fault-injection
ktest ktest: force $buildonly = 1 for 'make_warnings_file' test type 2024-04-13 13:01:46 +02:00
kunit kunit: tool: Import missing importlib.abc 2022-02-23 12:03:04 +01:00
nvdimm memremap: remove support for external pgmap refcounts 2022-08-17 14:23:43 +02:00
radix-tree radix tree test suite: fix incorrect allocation size for pthreads 2023-08-16 18:21:58 +02:00
scatterlist Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
selftests selftests/bpf: Prevent client connect before server bind in test_tc_tunnel.sh 2024-07-05 09:14:25 +02:00
vsock vsock_diag_test: remove free_sock_stat() call in test_no_sockets 2021-10-15 17:21:34 -07:00