Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit d4deb014 authored by Ido Schimmel's avatar Ido Schimmel Committed by David S. Miller
Browse files

selftests: forwarding: Add a test for FDB learning 



Send a packet with a specific destination MAC, make sure it was learned
on the ingress port and then aged-out.

Signed-off-by: default avatarIdo Schimmel <idosch@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 73bae673

tools/testing/selftests/net/forwarding/bridge_vlan_aware.sh

+4 −1
Original line number Diff line number Diff line
@@ -26,7 +26,9 @@ h2_destroy() 


switch_create()

{

	ip link add dev br0 type bridge vlan_filtering 1 mcast_snooping 0

	# 10 Seconds ageing time.

	ip link add dev br0 type bridge vlan_filtering 1 ageing_time 1000 \

		mcast_snooping 0



	ip link set dev $swp1 master br0

	ip link set dev $swp2 master br0
@@ -79,5 +81,6 @@ setup_wait 


ping_test $h1 192.0.2.2

ping6_test $h1 2001:db8:1::2

learning_test "br0" $swp1 $h1 $h2



exit $EXIT_STATUS

tools/testing/selftests/net/forwarding/lib.sh

+92 −0
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ 
# Can be overridden by the configuration file.

PING=${PING:=ping}

PING6=${PING6:=ping6}

MZ=${MZ:=mausezahn}

WAIT_TIME=${WAIT_TIME:=5}

PAUSE_ON_FAIL=${PAUSE_ON_FAIL:=no}

PAUSE_ON_CLEANUP=${PAUSE_ON_CLEANUP:=no}
@@ -34,6 +35,11 @@ if [[ ! -x "$(command -v jq)" ]]; then 
	exit 0

fi



if [[ ! -x "$(command -v $MZ)" ]]; then

	echo "SKIP: $MZ not installed"

	exit 0

fi



if [[ ! -v NUM_NETIFS ]]; then

	echo "SKIP: importer does not define \"NUM_NETIFS\""

	exit 0
@@ -250,6 +256,17 @@ master_name_get() 
	ip -j link show dev $if_name | jq -r '.[]["master"]'

}



bridge_ageing_time_get()

{

	local bridge=$1

	local ageing_time



	# Need to divide by 100 to convert to seconds.

	ageing_time=$(ip -j -d link show dev $bridge \

		      | jq '.[]["linkinfo"]["info_data"]["ageing_time"]')

	echo $((ageing_time / 100))

}



##############################################################################

# Tests
@@ -280,3 +297,78 @@ ping6_test() 
	check_err $?

	log_test "ping6"

}



learning_test()

{

	local bridge=$1

	local br_port1=$2	# Connected to `host1_if`.

	local host1_if=$3

	local host2_if=$4

	local mac=de:ad:be:ef:13:37

	local ageing_time



	RET=0



	bridge -j fdb show br $bridge brport $br_port1 \

		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null

	check_fail $? "Found FDB record when should not"



	# Disable unknown unicast flooding on `br_port1` to make sure

	# packets are only forwarded through the port after a matching

	# FDB entry was installed.

	bridge link set dev $br_port1 flood off



	tc qdisc add dev $host1_if ingress

	tc filter add dev $host1_if ingress protocol ip pref 1 handle 101 \

		flower dst_mac $mac action drop



	$MZ $host2_if -c 1 -p 64 -b $mac -t ip -q

	sleep 1



	tc -j -s filter show dev $host1_if ingress \

		| jq -e ".[] | select(.options.handle == 101) \

		| select(.options.actions[0].stats.packets == 1)" &> /dev/null

	check_fail $? "Packet reached second host when should not"



	$MZ $host1_if -c 1 -p 64 -a $mac -t ip -q

	sleep 1



	bridge -j fdb show br $bridge brport $br_port1 \

		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null

	check_err $? "Did not find FDB record when should"



	$MZ $host2_if -c 1 -p 64 -b $mac -t ip -q

	sleep 1



	tc -j -s filter show dev $host1_if ingress \

		| jq -e ".[] | select(.options.handle == 101) \

		| select(.options.actions[0].stats.packets == 1)" &> /dev/null

	check_err $? "Packet did not reach second host when should"



	# Wait for 10 seconds after the ageing time to make sure FDB

	# record was aged-out.

	ageing_time=$(bridge_ageing_time_get $bridge)

	sleep $((ageing_time + 10))



	bridge -j fdb show br $bridge brport $br_port1 \

		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null

	check_fail $? "Found FDB record when should not"



	bridge link set dev $br_port1 learning off



	$MZ $host1_if -c 1 -p 64 -a $mac -t ip -q

	sleep 1



	bridge -j fdb show br $bridge brport $br_port1 \

		| jq -e ".[] | select(.mac == \"$mac\")" &> /dev/null

	check_fail $? "Found FDB record when should not"



	bridge link set dev $br_port1 learning on



	tc filter del dev $host1_if ingress protocol ip pref 1 handle 101 flower

	tc qdisc del dev $host1_if ingress



	bridge link set dev $br_port1 flood on



	log_test "FDB learning"

}