selftests: forwarding: vxlan_bridge_1d: Add flood test (edaa117e) · Commits · 戴 / test

tools/testing/selftests/net/forwarding/vxlan_bridge_1d.sh

+105 −0

Original line number	Diff line number	Diff line
		@@ -66,6 +66,7 @@ export VXPORT

		: ${ALL_TESTS:="
		ping_ipv4
		test_flood
		"}

		NUM_NETIFS=6
		@@ -289,6 +290,110 @@ ping_ipv4()
		ping_test $h1 192.0.2.4 ": local->remote 2"
		}

		maybe_in_ns()
		{
		echo ${1:+in_ns} $1
		}

		__flood_counter_add_del()
		{
		local add_del=$1; shift
		local dev=$1; shift
		local ns=$1; shift

		# Putting the ICMP capture both to HW and to SW will end up
		# double-counting the packets that are trapped to slow path, such as for
		# the unicast test. Adding either skip_hw or skip_sw fixes this problem,
		# but with skip_hw, the flooded packets are not counted at all, because
		# those are dropped due to MAC address mismatch; and skip_sw is a no-go
		# for veth-based topologies.
		#
		# So try to install with skip_sw and fall back to skip_sw if that fails.

		$(maybe_in_ns $ns) __icmp_capture_add_del \
		$add_del 100 "" $dev skip_sw 2>/dev/null \|\| \
		$(maybe_in_ns $ns) __icmp_capture_add_del \
		$add_del 100 "" $dev skip_hw
		}

		flood_counter_install()
		{
		__flood_counter_add_del add "$@"
		}

		flood_counter_uninstall()
		{
		__flood_counter_add_del del "$@"
		}

		flood_fetch_stat()
		{
		local dev=$1; shift
		local ns=$1; shift

		$(maybe_in_ns $ns) tc_rule_stats_get $dev 100 ingress
		}

		flood_fetch_stats()
		{
		local counters=("${@}")
		local counter

		for counter in "${counters[@]}"; do
		flood_fetch_stat $counter
		done
		}

		vxlan_flood_test()
		{
		local mac=$1; shift
		local dst=$1; shift
		local -a expects=("${@}")

		local -a counters=($h2 "vx2 ns1" "vx2 ns2")
		local counter
		local key

		for counter in "${counters[@]}"; do
		flood_counter_install $counter
		done

		local -a t0s=($(flood_fetch_stats "${counters[@]}"))
		$MZ $h1 -c 10 -d 100msec -p 64 -b $mac -B $dst -t icmp -q
		sleep 1
		local -a t1s=($(flood_fetch_stats "${counters[@]}"))

		for key in ${!t0s[@]}; do
		local delta=$((t1s[$key] - t0s[$key]))
		local expect=${expects[$key]}

		((expect == delta))
		check_err $? "${counters[$key]}: Expected to capture $expect packets, got $delta."
		done

		for counter in "${counters[@]}"; do
		flood_counter_uninstall $counter
		done
		}

		__test_flood()
		{
		local mac=$1; shift
		local dst=$1; shift
		local what=$1; shift

		RET=0

		vxlan_flood_test $mac $dst 10 10 10

		log_test "VXLAN: $what"
		}

		test_flood()
		{
		__test_flood de:ad:be:ef:13:37 192.0.2.100 "flood"
		}

		test_all()
		{
		echo "Running tests with UDP port $VXPORT"

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