The parent commit adds this new counter, incremented when receiving a connection request, if the PM didn't allow the creation of new subflows.
Most of the time, it is then kept at 0, except when the PM limits cause the receiver side to reject new MPJoin connections. This is the case in the following tests:
- single subflow, limited by server - multiple subflows, limited by server - subflows limited by server w cookies - userspace pm type rejects join - userspace pm type prevents mp_prio
Simply set join_syn_rej=1 when checking the MPJoin counters for these tests.
Reviewed-by: Geliang Tang geliang@kernel.org Signed-off-by: Matthieu Baerts (NGI0) matttbe@kernel.org --- tools/testing/selftests/net/mptcp/mptcp_join.sh | 26 ++++++++++++++++++++----- 1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh index befa66f5a366bb738f8e6d6d84677f5c07488720..b8af65373b3ada96472347171924ad3a6cf14777 100755 --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -62,6 +62,7 @@ unset sflags unset fastclose unset fullmesh unset speed +unset join_syn_rej unset join_csum_ns1 unset join_csum_ns2 unset join_fail_nr @@ -1403,6 +1404,7 @@ chk_join_nr() local syn_nr=$1 local syn_ack_nr=$2 local ack_nr=$3 + local syn_rej=${join_syn_rej:-0} local csum_ns1=${join_csum_ns1:-0} local csum_ns2=${join_csum_ns2:-0} local fail_nr=${join_fail_nr:-0} @@ -1468,6 +1470,15 @@ chk_join_nr() fail_test "got $count JOIN[s] ack HMAC failure expected 0" fi
+ count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtMPJoinRejected") + if [ -z "$count" ]; then + rc=${KSFT_SKIP} + elif [ "$count" != "$syn_rej" ]; then + rc=${KSFT_FAIL} + print_check "syn rejected" + fail_test "got $count JOIN[s] syn rejected expected $syn_rej" + fi + print_results "join Rx" ${rc}
join_syn_tx="${join_syn_tx:-${syn_nr}}" \ @@ -1963,7 +1974,8 @@ subflows_tests() pm_nl_set_limits $ns2 0 1 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 - chk_join_nr 1 1 0 + join_syn_rej=1 \ + chk_join_nr 1 1 0 fi
# subflow @@ -1992,7 +2004,8 @@ subflows_tests() pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 - chk_join_nr 2 2 1 + join_syn_rej=1 \ + chk_join_nr 2 2 1 fi
# single subflow, dev @@ -3061,7 +3074,8 @@ syncookies_tests() pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 - chk_join_nr 2 1 1 + join_syn_rej=1 \ + chk_join_nr 2 1 1 fi
# test signal address with cookies @@ -3545,7 +3559,8 @@ userspace_tests() pm_nl_set_limits $ns2 1 1 pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow run_tests $ns1 $ns2 10.0.1.1 - chk_join_nr 1 1 0 + join_syn_rej=1 \ + chk_join_nr 1 1 0 fi
# userspace pm type does not send join @@ -3568,7 +3583,8 @@ userspace_tests() pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow sflags=backup speed=slow \ run_tests $ns1 $ns2 10.0.1.1 - chk_join_nr 1 1 0 + join_syn_rej=1 \ + chk_join_nr 1 1 0 chk_prio_nr 0 0 0 0 fi