selftests: vxlan_mdb: Add MDB bulk deletion test

Add test cases to verify the behavior of the MDB bulk deletion
functionality in the VXLAN driver.

Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Acked-by: Petr Machata <petrm@nvidia.com>
Acked-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/tools/testing/selftests/net/test_vxlan_mdb.sh b/tools/testing/selftests/net/test_vxlan_mdb.sh
index 6725fd9157b9268fb654d135e03a7ae47cb174bf..84a05a9e46d8694fe9aedbe091ea99beefbc28ee 100755 (executable)
--- a/tools/testing/selftests/net/test_vxlan_mdb.sh
+++ b/tools/testing/selftests/net/test_vxlan_mdb.sh
@@ -79,6 +79,7 @@ CONTROL_PATH_TESTS="
        dump_ipv6_ipv4
        dump_ipv4_ipv6
        dump_ipv6_ipv6
+       flush
 "
 
 DATA_PATH_TESTS="
@@ -968,6 +969,202 @@ dump_ipv6_ipv6()
        dump_common $ns1 $local_addr $remote_prefix $fn
 }
 
+flush()
+{
+       local num_entries
+
+       echo
+       echo "Control path: Flush"
+       echo "-------------------"
+
+       # Add entries with different attributes and check that they are all
+       # flushed when the flush command is given with no parameters.
+
+       # Different source VNI.
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.2 permanent dst 198.51.100.1 src_vni 10011"
+
+       # Different routing protocol.
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.3 permanent proto bgp dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.4 permanent proto zebra dst 198.51.100.1 src_vni 10010"
+
+       # Different destination IP.
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.5 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.6 permanent dst 198.51.100.2 src_vni 10010"
+
+       # Different destination port.
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.7 permanent dst 198.51.100.1 dst_port 11111 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.8 permanent dst 198.51.100.1 dst_port 22222 src_vni 10010"
+
+       # Different VNI.
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.9 permanent dst 198.51.100.1 vni 10010 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.10 permanent dst 198.51.100.1 vni 10020 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+       num_entries=$(bridge -n $ns1_v4 mdb show dev vx0 | wc -l)
+       [[ $num_entries -eq 0 ]]
+       log_test $? 0 "Flush all"
+
+       # Check that entries are flushed when port is specified as the VXLAN
+       # device and that an error is returned when port is specified as a
+       # different net device.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 port vx0"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010"
+       log_test $? 254 "Flush by port"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 port veth0"
+       log_test $? 255 "Flush by wrong port"
+
+       # Check that when flushing by source VNI only entries programmed with
+       # the specified source VNI are flushed and the rest are not.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10011"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10011"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010"
+       log_test $? 254 "Flush by specified source VNI"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10011"
+       log_test $? 0 "Flush by unspecified source VNI"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # Check that all entries are flushed when "permanent" is specified and
+       # that an error is returned when "nopermanent" is specified.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 permanent"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010"
+       log_test $? 254 "Flush by \"permanent\" state"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 nopermanent"
+       log_test $? 255 "Flush by \"nopermanent\" state"
+
+       # Check that when flushing by routing protocol only entries programmed
+       # with the specified routing protocol are flushed and the rest are not.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent proto bgp dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent proto zebra dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 proto bgp"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"proto bgp\""
+       log_test $? 1 "Flush by specified routing protocol"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"proto zebra\""
+       log_test $? 0 "Flush by unspecified routing protocol"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # Check that when flushing by destination IP only entries programmed
+       # with the specified destination IP are flushed and the rest are not.
+
+       # IPv4.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst 198.51.100.2"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.2"
+       log_test $? 1 "Flush by specified destination IP - IPv4"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.1"
+       log_test $? 0 "Flush by unspecified destination IP - IPv4"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # IPv6.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 2001:db8:1000::1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 2001:db8:1000::2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst 2001:db8:1000::2"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 2001:db8:1000::2"
+       log_test $? 1 "Flush by specified destination IP - IPv6"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 2001:db8:1000::1"
+       log_test $? 0 "Flush by unspecified destination IP - IPv6"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # Check that when flushing by UDP destination port only entries
+       # programmed with the specified port are flushed and the rest are not.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst_port 11111 dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst_port 22222 dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst_port 11111"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"dst_port 11111\""
+       log_test $? 1 "Flush by specified UDP destination port"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \"dst_port 22222\""
+       log_test $? 0 "Flush by unspecified UDP destination port"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # When not specifying a UDP destination port for an entry, traffic is
+       # encapsulated with the device's UDP destination port. Check that when
+       # flushing by the device's UDP destination port only entries programmed
+       # with this port are flushed and the rest are not.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst_port 22222 dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 dst_port 4789"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.1"
+       log_test $? 1 "Flush by device's UDP destination port"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.2"
+       log_test $? 0 "Flush by unspecified UDP destination port"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # Check that when flushing by destination VNI only entries programmed
+       # with the specified destination VNI are flushed and the rest are not.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent vni 20010 dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent vni 20011 dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 vni 20010"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \" vni 20010\""
+       log_test $? 1 "Flush by specified destination VNI"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep \" vni 20011\""
+       log_test $? 0 "Flush by unspecified destination VNI"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # When not specifying a destination VNI for an entry, traffic is
+       # encapsulated with the source VNI. Check that when flushing by a
+       # destination VNI that is equal to the source VNI only such entries are
+       # flushed and the rest are not.
+
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent dst 198.51.100.1 src_vni 10010"
+       run_cmd "bridge -n $ns1_v4 mdb add dev vx0 port vx0 grp 239.1.1.1 permanent vni 20010 dst 198.51.100.2 src_vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 vni 10010"
+
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.1"
+       log_test $? 1 "Flush by destination VNI equal to source VNI"
+       run_cmd "bridge -n $ns1_v4 -d -s mdb get dev vx0 grp 239.1.1.1 src_vni 10010 | grep 198.51.100.2"
+       log_test $? 0 "Flush by unspecified destination VNI"
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0"
+
+       # Test that an error is returned when trying to flush using VLAN ID.
+
+       run_cmd "bridge -n $ns1_v4 mdb flush dev vx0 vid 10"
+       log_test $? 255 "Flush by VLAN ID"
+}
+
 ################################################################################
 # Tests - Data path
 
@@ -2292,9 +2489,9 @@ if [ ! -x "$(command -v jq)" ]; then
        exit $ksft_skip
 fi
 
-bridge mdb help 2>&1 | grep -q "get"
+bridge mdb help 2>&1 | grep -q "flush"
 if [ $? -ne 0 ]; then
-   echo "SKIP: iproute2 bridge too old, missing VXLAN MDB get support"
+   echo "SKIP: iproute2 bridge too old, missing VXLAN MDB flush support"
    exit $ksft_skip
 fi