diff options
| author |   Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-04-22 13:15:00 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2022-04-23 12:18:16 +0100 |
| commit | f23cddc72294a345b4a8c3662b0ab6077c7583c7 (patch) | |
| tree | 35842158371c90c401c31a1b4ca6a557579a8d58 /tools | |
| parent | selftests: forwarding: multiple instances in tcpdump helper (diff) | |
| download | linux-dev-f23cddc72294a345b4a8c3662b0ab6077c7583c7.tar.xz linux-dev-f23cddc72294a345b4a8c3662b0ab6077c7583c7.zip | |
selftests: forwarding: add helpers for IP multicast group joins/leaves
Extend the forwarding library with calls to some small C programs which
join an IP multicast group and send some packets to it. Both IPv4 and
IPv6 groups are supported. Use cases range from testing IGMP/MLD
snooping, to RX filtering, to multicast routing.
Testing multicast traffic using msend/mreceive is intended to be done
using tcpdump.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/testing/selftests/net/forwarding/lib.sh | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh index 7eff5ecf7565..15fb46b39fe8 100755 --- a/tools/testing/selftests/net/forwarding/lib.sh +++ b/tools/testing/selftests/net/forwarding/lib.sh @@ -27,6 +27,7 @@ INTERFACE_TIMEOUT=${INTERFACE_TIMEOUT:=600} LOW_AGEING_TIME=${LOW_AGEING_TIME:=1000} REQUIRE_JQ=${REQUIRE_JQ:=yes} REQUIRE_MZ=${REQUIRE_MZ:=yes} +REQUIRE_MTOOLS=${REQUIRE_MTOOLS:=no} STABLE_MAC_ADDRS=${STABLE_MAC_ADDRS:=no} TCPDUMP_EXTRA_FLAGS=${TCPDUMP_EXTRA_FLAGS:=} @@ -161,6 +162,12 @@ fi if [[ "$REQUIRE_MZ" = "yes" ]]; then require_command $MZ fi +if [[ "$REQUIRE_MTOOLS" = "yes" ]]; then + # https://github.com/vladimiroltean/mtools/ + # patched for IPv6 support + require_command msend + require_command mreceive +fi if [[ ! -v NUM_NETIFS ]]; then echo "SKIP: importer does not define \"NUM_NETIFS\"" @@ -1548,6 +1555,37 @@ brmcast_check_sg_state() done } +mc_join() +{ + local if_name=$1 + local group=$2 + local vrf_name=$(master_name_get $if_name) + + # We don't care about actual reception, just about joining the + # IP multicast group and adding the L2 address to the device's + # MAC filtering table + ip vrf exec $vrf_name \ + mreceive -g $group -I $if_name > /dev/null 2>&1 & + mreceive_pid=$! + + sleep 1 +} + +mc_leave() +{ + kill "$mreceive_pid" && wait "$mreceive_pid" +} + +mc_send() +{ + local if_name=$1 + local groups=$2 + local vrf_name=$(master_name_get $if_name) + + ip vrf exec $vrf_name \ + msend -g $groups -I $if_name -c 1 > /dev/null 2>&1 +} + start_ip_monitor() { local mtype=$1; shift |