Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is TCP_INQ cmsg support introduced in commit 2c9e77659a0c
("mptcp: add TCP_INQ cmsg support").
It is possible to look for "mptcp_ioctl" in kallsyms because it was
needed to introduce the mentioned feature. We can skip these tests and
not set TCPINQ option if the feature is not supported.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: 5cbd886ce2a9 ("selftests: mptcp: add TCP_INQ support")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
---
tools/testing/selftests/net/mptcp/mptcp_sockopt.sh | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
index 1d4ae8792227..f295a371ff14 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -187,9 +187,14 @@ do_transfer()
local_addr="0.0.0.0"
fi
+ cmsg="TIMESTAMPNS"
+ if mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
+ cmsg+=",TCPINQ"
+ fi
+
timeout ${timeout_test} \
ip netns exec ${listener_ns} \
- $mptcp_connect -t ${timeout_poll} -l -M 1 -p $port -s ${srv_proto} -c TIMESTAMPNS,TCPINQ \
+ $mptcp_connect -t ${timeout_poll} -l -M 1 -p $port -s ${srv_proto} -c "${cmsg}" \
${local_addr} < "$sin" > "$sout" &
local spid=$!
@@ -197,7 +202,7 @@ do_transfer()
timeout ${timeout_test} \
ip netns exec ${connector_ns} \
- $mptcp_connect -t ${timeout_poll} -M 2 -p $port -s ${cl_proto} -c TIMESTAMPNS,TCPINQ \
+ $mptcp_connect -t ${timeout_poll} -M 2 -p $port -s ${cl_proto} -c "${cmsg}" \
$connect_addr < "$cin" > "$cout" &
local cpid=$!
@@ -313,6 +318,11 @@ do_tcpinq_tests()
{
local lret=0
+ if ! mptcp_lib_kallsyms_has "mptcp_ioctl$"; then
+ echo "INFO: TCP_INQ not supported: SKIP"
+ return
+ fi
+
local args
for args in "-t tcp" "-r tcp"; do
do_tcpinq_test $args
--
2.40.1
