selftests: bonding: add ns multicast group testing

Add a test to make sure the backup slaves join correct multicast group
when arp_validate enabled and ns_ip6_target is set. Here is the result:

TEST: arp_validate (active-backup ns_ip6_target arp_validate 0)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]
TEST: arp_validate (active-backup ns_ip6_target arp_validate 1)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]
TEST: arp_validate (active-backup ns_ip6_target arp_validate 2)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]
TEST: arp_validate (active-backup ns_ip6_target arp_validate 3)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]
TEST: arp_validate (active-backup ns_ip6_target arp_validate 4)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]
TEST: arp_validate (active-backup ns_ip6_target arp_validate 5)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]
TEST: arp_validate (active-backup ns_ip6_target arp_validate 6)     [ OK ]
TEST: arp_validate (join mcast group)                               [ OK ]

Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

diff --git a/tools/testing/selftests/drivers/net/bonding/bond_options.sh b/tools/testing/selftests/drivers/net/bonding/bond_options.sh
index 41d0859feb7d5d3cab9cfc7f46d8fc8920b6a5df..edc56e2cc606905e5ad213b4e1f4186097ba385c 100755 (executable)
--- a/tools/testing/selftests/drivers/net/bonding/bond_options.sh
+++ b/tools/testing/selftests/drivers/net/bonding/bond_options.sh
@@ -11,6 +11,8 @@ ALL_TESTS="
 
 lib_dir=$(dirname "$0")
 source ${lib_dir}/bond_topo_3d1c.sh
+c_maddr="33:33:00:00:00:10"
+g_maddr="33:33:00:00:02:54"
 
 skip_prio()
 {
@@ -240,6 +242,54 @@ arp_validate_test()
        done
 }
 
+# Testing correct multicast groups are added to slaves for ns targets
+arp_validate_mcast()
+{
+       RET=0
+       local arp_valid=$(cmd_jq "ip -n ${s_ns} -j -d link show bond0" ".[].linkinfo.info_data.arp_validate")
+       local active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+
+       for i in $(seq 0 2); do
+               maddr_list=$(ip -n ${s_ns} maddr show dev eth${i})
+
+               # arp_valid == 0 or active_slave should not join any maddrs
+               if { [ "$arp_valid" == "null" ] || [ "eth${i}" == ${active_slave} ]; } && \
+                       echo "$maddr_list" | grep -qE "${c_maddr}|${g_maddr}"; then
+                       RET=1
+                       check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+               # arp_valid != 0 and backup_slave should join both maddrs
+               elif [ "$arp_valid" != "null" ] && [ "eth${i}" != ${active_slave} ] && \
+                    ( ! echo "$maddr_list" | grep -q "${c_maddr}" || \
+                      ! echo "$maddr_list" | grep -q "${m_maddr}"); then
+                       RET=1
+                       check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+               fi
+       done
+
+       # Do failover
+       ip -n ${s_ns} link set ${active_slave} down
+       # wait for active link change
+       slowwait 2 active_slave_changed $active_slave
+       active_slave=$(cmd_jq "ip -n ${s_ns} -d -j link show bond0" ".[].linkinfo.info_data.active_slave")
+
+       for i in $(seq 0 2); do
+               maddr_list=$(ip -n ${s_ns} maddr show dev eth${i})
+
+               # arp_valid == 0 or active_slave should not join any maddrs
+               if { [ "$arp_valid" == "null" ] || [ "eth${i}" == ${active_slave} ]; } && \
+                       echo "$maddr_list" | grep -qE "${c_maddr}|${g_maddr}"; then
+                       RET=1
+                       check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+               # arp_valid != 0 and backup_slave should join both maddrs
+               elif [ "$arp_valid" != "null" ] && [ "eth${i}" != ${active_slave} ] && \
+                    ( ! echo "$maddr_list" | grep -q "${c_maddr}" || \
+                      ! echo "$maddr_list" | grep -q "${m_maddr}"); then
+                       RET=1
+                       check_err 1 "arp_valid $arp_valid active_slave $active_slave, eth$i has mcast group"
+               fi
+       done
+}
+
 arp_validate_arp()
 {
        local mode=$1
@@ -261,8 +311,10 @@ arp_validate_ns()
        fi
 
        for val in $(seq 0 6); do
-               arp_validate_test "mode $mode arp_interval 100 ns_ip6_target ${g_ip6} arp_validate $val"
+               arp_validate_test "mode $mode arp_interval 100 ns_ip6_target ${g_ip6},${c_ip6} arp_validate $val"
                log_test "arp_validate" "$mode ns_ip6_target arp_validate $val"
+               arp_validate_mcast
+               log_test "arp_validate" "join mcast group"
        done
 }