Add tests to local_termination.sh to verify that link-local frames arrive. On some switches the DSA driver uses bridges to connect the user ports to their CPU ports. More "intelligent" switches typically don't forward link-local frames, but may trap them to an internal microcontroller. The driver may have to change trapping rules, so link-local frames end up on the DSA CPU ports instead of being silently dropped or trapped to the internal microcontroller of the switch.
Add two tests which help to validate this has been done correctly: - Link-local STP BPDU should always arrive at the Linux netdev - Link-local LLDP should arrive at standalone ports (and the test should be skipped on bridged ports similar to how it is done for the IEEE1588v2/PTP tests) Signed-off-by: Daniel Golle <[email protected]> --- .../net/forwarding/local_termination.sh | 25 +++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/tools/testing/selftests/net/forwarding/local_termination.sh b/tools/testing/selftests/net/forwarding/local_termination.sh index 1f2bf6e818477..9bc9d25e71368 100755 --- a/tools/testing/selftests/net/forwarding/local_termination.sh +++ b/tools/testing/selftests/net/forwarding/local_termination.sh @@ -100,6 +100,15 @@ PTP_1588_IPV6_PDELAY_REQ=" \ 00 00 3e 37 63 ff fe cf 17 0e 00 01 00 01 05 7f \ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 \ 00 00 00 00 00 00" +LINK_LOCAL_STP_BPDU=" \ +01:80:c2:00:00:00 00:00:de:ad:be:ef 00 26 42 42 03 \ +00 00 00 00 00 80 00 aa bb cc dd ee ff 00 00 00 00 \ +80 00 aa bb cc dd ee ff 80 01 00 00 14 00 02 00 \ +0f 00" +LINK_LOCAL_LLDP=" \ +01:80:c2:00:00:0e 00:00:de:ad:be:ef 88:cc 02 07 04 \ +00 11 22 33 44 55 04 05 05 65 74 68 30 06 02 00 \ +78 00 00" # Disable promisc to ensure we don't receive unknown MAC DA packets export TCPDUMP_EXTRA_FLAGS="-pl" @@ -213,7 +222,15 @@ run_test() mc_route_destroy $rcv_if_name mc_route_destroy $send_if_name + ip maddress add 01:80:c2:00:00:00 dev $rcv_if_name + send_raw $send_if_name "$LINK_LOCAL_STP_BPDU" + ip maddress del 01:80:c2:00:00:00 dev $rcv_if_name + if [ $skip_ptp = false ]; then + ip maddress add 01:80:c2:00:00:0e dev $rcv_if_name + send_raw $send_if_name "$LINK_LOCAL_LLDP" + ip maddress del 01:80:c2:00:00:0e dev $rcv_if_name + ip maddress add 01:1b:19:00:00:00 dev $rcv_if_name send_raw $send_if_name "$PTP_1588_L2_SYNC" send_raw $send_if_name "$PTP_1588_L2_FOLLOW_UP" @@ -304,7 +321,15 @@ run_test() "$smac > $UNKNOWN_MACV6_MC_ADDR3, ethertype IPv6 (0x86dd)" \ true "$test_name" + check_rcv $rcv_if_name "Link-local STP BPDU" \ + "> 01:80:c2:00:00:00" \ + true "$test_name" + if [ $skip_ptp = false ]; then + check_rcv $rcv_if_name "Link-local LLDP" \ + "> 01:80:c2:00:00:0e" \ + true "$test_name" + check_rcv $rcv_if_name "1588v2 over L2 transport, Sync" \ "ethertype PTP (0x88f7).* PTPv2.* msg type *: sync msg" \ true "$test_name" -- 2.53.0
