[MPTCP] [MPTCP][PATCH v6 mptcp-next 5/5] selftests: mptcp: remove id 0 address testcases

[MPTCP] [MPTCP][PATCH v6 mptcp-next 5/5] selftests: mptcp: remove id 0 address testcases

[Geliang Tang]

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This patch added the testcases for removing the id 0 subflow and the id 0
address.

In do_transfer, use the removing addresses number '9' for deleting the id
0 address.

Signed-off-by: Geliang Tang <geliangtang(a)gmail.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 35 +++++++++++++++++--
 1 file changed, 33 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 96379ede5925..1ee9b66dcded 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -315,9 +315,12 @@ do_transfer()
 					let id+=1
 				done
 			fi
-		else
+		elif [ $rm_nr_ns1 -eq 8 ]; then
 			sleep 1
 			ip netns exec ${listener_ns} ./pm_nl_ctl flush
+		elif [ $rm_nr_ns1 -eq 9 ]; then
+			sleep 1
+			ip netns exec ${listener_ns} ./pm_nl_ctl del 0 ${connect_addr}
 		fi
 	fi
 
@@ -354,9 +357,18 @@ do_transfer()
 					let id+=1
 				done
 			fi
-		else
+		elif [ $rm_nr_ns2 -eq 8 ]; then
 			sleep 1
 			ip netns exec ${connector_ns} ./pm_nl_ctl flush
+		elif [ $rm_nr_ns2 -eq 9 ]; then
+			local addr
+			if is_v6 "${connect_addr}"; then
+				addr="dead:beef:1::2"
+			else
+				addr="10.0.1.2"
+			fi
+			sleep 1
+			ip netns exec ${connector_ns} ./pm_nl_ctl del 0 $addr
 		fi
 	fi
 
@@ -1016,6 +1028,25 @@ remove_tests()
 	chk_join_nr "flush invalid addresses" 1 1 1
 	chk_add_nr 3 3
 	chk_rm_nr 3 1 invert
+
+	# remove id 0 subflow
+	reset
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
+	run_tests $ns1 $ns2 10.0.1.1 0 0 -9 slow
+	chk_join_nr "remove id 0 subflow" 1 1 1
+	chk_rm_nr 1 1
+
+	# remove id 0 address
+	reset
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	run_tests $ns1 $ns2 10.0.1.1 0 -9 0 slow
+	chk_join_nr "remove id 0 address" 1 1 1
+	chk_add_nr 1 1
+	chk_rm_nr 1 1 invert
 }
 
 add_tests()
-- 
2.29.2