diff mbox series

[mptcp-net,v2,27/37] selftests: mptcp: join: support local endpoint being tracked or not

Message ID 20230406-mptcp-issue-368-selftests-old-kernels-v2-27-50313e4f83ab@tessares.net (mailing list archive)
State Superseded, archived
Delegated to: Paolo Abeni
Headers show
Series selftests: mptcp: skip tests when features are not supported | expand

Checks

Context Check Description
matttbe/build success Build and static analysis OK
matttbe/checkpatch success total: 0 errors, 0 warnings, 0 checks, 22 lines checked
matttbe/KVM_Validation__normal__except_selftest_mptcp_join_ warning Unstable: 1 failed test(s): packetdrill_fastopen
matttbe/KVM_Validation__debug__except_selftest_mptcp_join_ warning Unstable: 2 failed test(s): packetdrill_fastopen selftest_diag
matttbe/KVM_Validation__debug__only_selftest_mptcp_join_ success Success! ✅
matttbe/KVM_Validation__normal__only_selftest_mptcp_join_ success Success! ✅

Commit Message

Matthieu Baerts May 22, 2023, 4:37 p.m. UTC
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.

At some points, a new feature caused internal behaviour changes we are
verifying in the selftests, see the Fixes tag below. It was not a uAPI
change but because in these selftests, we check some internal
behaviours, it is normal we have to adapt them from time to time after
having added some features.

It is possible to look for "mptcp_pm_subflow_check_next" in kallsyms
because it was needed to introduce the mentioned feature. So we can know
in advance what the behaviour we are expecting here instead of
supporting the two behaviours.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 86e39e04482b ("mptcp: keep track of local endpoint still available for each msk")
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 2ae6d99f3eb9..1f24495308f9 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -2184,11 +2184,18 @@  signal_address_tests()
 		# the peer could possibly miss some addr notification, allow retransmission
 		ip netns exec $ns1 sysctl -q net.mptcp.add_addr_timeout=1
 		run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
-		chk_join_nr 3 3 3
 
-		# the server will not signal the address terminating
-		# the MPC subflow
-		chk_add_nr 3 3
+		# It is not directly linked to the commit introducing this
+		# symbol but for the parent one which is linked anyway.
+		if ! mptcp_lib_kallsyms_has "mptcp_pm_subflow_check_next$"; then
+			chk_join_nr 3 3 2
+			chk_add_nr 4 4
+		else
+			chk_join_nr 3 3 3
+			# the server will not signal the address terminating
+			# the MPC subflow
+			chk_add_nr 3 3
+		fi
 	fi
 }