selftests: mptcp: send REMOVE_ADDR after subflow is deleted

Now address entries only be removed from local_addr_list when sending a
REMOVE_ADDR by the userspace PM, they're no longer removed when a subflow
is deleted.

To make the original userspace PM selftests pass, this patch always sends
a REMOVE_ADDR when a subflow is deleted.

Signed-off-by: Geliang Tang <[email protected]>

Author: Geliang Tang

tools/testing/selftests/net/mptcp/mptcp_join.sh

@@ -3624,11 +3624,12 @@ userspace_tests()
 		userspace_pm_chk_get_addr "${ns1}" "10" "id 10 flags signal 10.0.2.1"
 		userspace_pm_chk_get_addr "${ns1}" "20" "id 20 flags signal 10.0.3.1"
 		userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $MPTCP_LIB_EVENT_SUB_ESTABLISHED
+		userspace_pm_rm_addr $ns1 10
 		userspace_pm_chk_dump_addr "${ns1}" \
 			"id 20 flags signal 10.0.3.1" "after rm_sf 10"
 		userspace_pm_rm_addr $ns1 20
 		userspace_pm_chk_dump_addr "${ns1}" "" "after rm_addr 20"
-		chk_rm_nr 1 1 invert
+		chk_rm_nr 2 1 invert
 		chk_mptcp_info subflows 0 subflows 0
 		chk_subflows_total 1 1
 		kill_events_pids
@@ -3653,6 +3654,7 @@ userspace_tests()
 			"subflow"
 		userspace_pm_chk_get_addr "${ns2}" "20" "id 20 flags subflow 10.0.3.2"
 		userspace_pm_rm_sf $ns2 10.0.3.2 $MPTCP_LIB_EVENT_SUB_ESTABLISHED
+		userspace_pm_rm_addr $ns2 20
 		userspace_pm_chk_dump_addr "${ns2}" \
 			"" \
 			"after rm_sf 20"

tools/testing/selftests/net/mptcp/userspace_pm.sh

@@ -628,6 +628,7 @@ test_subflows()
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
 	   dead:beef:2::2 rport "$client6_port" token "$server6_token"
+	ip netns exec "$ns1" ./pm_nl_ctl rem id 23 token "$server6_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
 			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
@@ -667,6 +668,7 @@ test_subflows()
 	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
 	   $new4_port token "$server4_token"
+	ip netns exec "$ns1" ./pm_nl_ctl rem id 23 token "$server4_token"
 	sleep 0.5
 	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
 			      "10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
@@ -705,6 +707,7 @@ test_subflows()
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
 	   $app4_port token "$client4_token"
+	ip netns exec "$ns2" ./pm_nl_ctl rem id 23 token "$client4_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
 			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
@@ -744,6 +747,7 @@ test_subflows()
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
 	   dead:beef:2::1 rport $app6_port token "$client6_token"
+	ip netns exec "$ns2" ./pm_nl_ctl rem id 23 token "$client6_token"
 	sleep 0.5
 	verify_subflow_events $client_evts $SUB_CLOSED $client6_token $AF_INET6 "dead:beef:2::2"\
 			      "dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
@@ -781,6 +785,7 @@ test_subflows()
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
 	   $new4_port token "$client4_token"
+	ip netns exec "$ns2" ./pm_nl_ctl rem id 23 token "$client4_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
 			      "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
@@ -827,6 +832,7 @@ test_subflows_v4_v6_mix()
 	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
 	   $app6_port token "$client6_token"
+	ip netns exec "$ns2" ./pm_nl_ctl rem id 23 token "$client6_token"
 	sleep 0.5
 	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client6_token" \
 			      "$AF_INET" "10.0.2.2" "10.0.2.1" "$app6_port" "23"\