linux-stable/tools/testing
Hangbin Liu fdecfb2603 selftests: nft_nat: ensuring the listening side is up before starting the client
[ Upstream commit 2067e7a00a ]

The test_local_dnat_portonly() function initiates the client-side as
soon as it sets the listening side to the background. This could lead to
a race condition where the server may not be ready to listen. To ensure
that the server-side is up and running before initiating the
client-side, a delay is introduced to the test_local_dnat_portonly()
function.

Before the fix:
  # ./nft_nat.sh
  PASS: netns routing/connectivity: ns0-rthlYrBU can reach ns1-rthlYrBU and ns2-rthlYrBU
  PASS: ping to ns1-rthlYrBU was ip NATted to ns2-rthlYrBU
  PASS: ping to ns1-rthlYrBU OK after ip nat output chain flush
  PASS: ipv6 ping to ns1-rthlYrBU was ip6 NATted to ns2-rthlYrBU
  2023/02/27 04:11:03 socat[6055] E connect(5, AF=2 10.0.1.99:2000, 16): Connection refused
  ERROR: inet port rewrite

After the fix:
  # ./nft_nat.sh
  PASS: netns routing/connectivity: ns0-9sPJV6JJ can reach ns1-9sPJV6JJ and ns2-9sPJV6JJ
  PASS: ping to ns1-9sPJV6JJ was ip NATted to ns2-9sPJV6JJ
  PASS: ping to ns1-9sPJV6JJ OK after ip nat output chain flush
  PASS: ipv6 ping to ns1-9sPJV6JJ was ip6 NATted to ns2-9sPJV6JJ
  PASS: inet port rewrite without l3 address

Fixes: 282e5f8fe9 ("netfilter: nat: really support inet nat without l3 address")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-03-17 08:48:54 +01:00
..
fault-injection
ktest ktest.pl: Add RUN_TIMEOUT option with default unlimited 2023-03-10 09:40:10 +01:00
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
scatterlist Merge branch 'akpm' (patches from Andrew) 2021-09-03 10:08:28 -07:00
selftests selftests: nft_nat: ensuring the listening side is up before starting the client 2023-03-17 08:48:54 +01:00
vsock vsock_diag_test: remove free_sock_stat() call in test_no_sockets 2021-10-15 17:21:34 -07:00