selftests: mptcp: join: endpoints: longer transfer

In rare cases, when the test environment is very slow, some userspace
tests can fail because some expected events have not been seen.

Because the tests are expecting a long on-going connection, and they are
not waiting for the end of the transfer, it is fine to make the
connection longer. This connection will be killed at the end, after the
verifications, so making it longer doesn't change anything, apart from
avoid it to end before the end of the verifications

To play it safe, all endpoints tests not waiting for the end of the
transfer are now sharing a longer file (128KB) at slow speed.

Fixes: 69c6ce7b6eca ("selftests: mptcp: add implicit endpoint test case")
Cc: stable@vger.kernel.org
Fixes: e274f7154008 ("selftests: mptcp: add subflow limits test-cases")
Fixes: b5e2fb832f48 ("selftests: mptcp: add explicit test case for remove/readd")
Fixes: e06959e9eebd ("selftests: mptcp: join: test for flush/re-add endpoints")
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-3-a4332c714e10@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 9ed9ec7202d6babe9a8e547615379451a0e8d25a..97af8d89ac5c1210c943a829efd3b1661b5d0aa9 100755 (executable)
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -3943,7 +3943,7 @@ endpoint_tests()
                pm_nl_set_limits $ns1 2 2
                pm_nl_set_limits $ns2 2 2
                pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
-               { speed=slow \
+               { test_linkfail=128 speed=slow \
                        run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
@@ -3970,7 +3970,7 @@ endpoint_tests()
                pm_nl_set_limits $ns2 0 3
                pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
                pm_nl_add_endpoint $ns2 10.0.2.2 id 2 dev ns2eth2 flags subflow
-               { test_linkfail=4 speed=5 \
+               { test_linkfail=128 speed=5 \
                        run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
@@ -4048,7 +4048,7 @@ endpoint_tests()
                # broadcast IP: no packet for this address will be received on ns1
                pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
                pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
-               { test_linkfail=4 speed=5 \
+               { test_linkfail=128 speed=5 \
                        run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!
 
@@ -4121,7 +4121,7 @@ endpoint_tests()
                # broadcast IP: no packet for this address will be received on ns1
                pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
                pm_nl_add_endpoint $ns2 10.0.3.2 id 3 flags subflow
-               { test_linkfail=4 speed=20 \
+               { test_linkfail=128 speed=20 \
                        run_tests $ns1 $ns2 10.0.1.1 & } 2>/dev/null
                local tests_pid=$!