linux/tools/testing
Ido Schimmel 5e6242151d selftests: mlxsw: vxlan_flooding_ipv6: Prevent flooding of unwanted packets
The test verifies that packets are correctly flooded by the bridge and
the VXLAN device by matching on the encapsulated packets at the other
end. However, if packets other than those generated by the test also
ingress the bridge (e.g., MLD packets), they will be flooded as well and
interfere with the expected count.

Make the test more robust by making sure that only the packets generated
by the test can ingress the bridge. Drop all the rest using tc filters
on the egress of 'br0' and 'h1'.

In the software data path, the problem can be solved by matching on the
inner destination MAC or dropping unwanted packets at the egress of the
VXLAN device, but this is not currently supported by mlxsw.

Fixes: d01724dd2a ("selftests: mlxsw: spectrum-2: Add a test for VxLAN flooding with IPv6")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-04-20 15:04:27 +01:00
..
cxl tools/testing/cxl: Add a physical_node link 2022-02-08 22:57:33 -08:00
fault-injection
ktest
kunit linux-kselftest-kunit-5.18-rc1 2022-03-23 12:56:39 -07:00
memblock memblock tests: Add TODO and README files 2022-03-10 12:19:44 +02:00
nvdimm tools/testing/nvdimm: Fix security_init() symbol collision 2022-04-08 12:59:25 -07:00
radix-tree tools: Move gfp.h and slab.h from radix-tree to lib 2022-02-20 08:44:37 +02:00
scatterlist tools/testing/scatterlist: add missing defines 2022-01-30 09:56:58 +02:00
selftests selftests: mlxsw: vxlan_flooding_ipv6: Prevent flooding of unwanted packets 2022-04-20 15:04:27 +01:00
vsock af_vsock: SOCK_SEQPACKET broken buffer test 2022-03-18 15:13:19 +00:00