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selftests/bpf: Track test_xdp_features DUT processes #13225

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selftests/bpf: Track test_xdp_features DUT processes #13225

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82 changes: 62 additions & 20 deletions tools/testing/selftests/bpf/test_xdp_features.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ readonly V0_IP6=2001:db8::11
readonly V1_IP6=2001:db8::1

ret=1
dut_pid=""

setup() {
{
Expand All @@ -30,77 +31,118 @@ setup() {
} > /dev/null 2>&1
}

terminate_dut_server() {
[ -z "$dut_pid" ] && return

# Use the shell job instead of a PID which may have been reused.
if [ "$(jobs -pr %% 2> /dev/null)" = "$dut_pid" ]; then
kill -KILL %% 2> /dev/null || true
fi

wait "$dut_pid" 2> /dev/null || true
dut_pid=""
}

cleanup() {
ip link del v1 2> /dev/null
ip netns del ${NS} 2> /dev/null
[ "$(pidof xdp_features)" = "" ] || kill $(pidof xdp_features) 2> /dev/null
terminate_dut_server
ip link del v1 2> /dev/null || true
ip netns del "${NS}" 2> /dev/null || true
}

wait_for_dut_server() {
while sleep 1; do
ss -tlp | grep -q xdp_features
[ $? -eq 0 ] && break
local i

for ((i = 0; i < 10; i++)); do
if [ "$(jobs -pr %% 2> /dev/null)" != "$dut_pid" ]; then
echo "xdp_features server $dut_pid exited before accepting connections" >&2
return 1
fi

if ss -tlp 2> /dev/null | grep -q "pid=$dut_pid,"; then
return 0
fi

sleep 1
done

echo "Timed out waiting for xdp_features server $dut_pid" >&2
return 1
}

start_dut_server() {
./xdp_features "$@" &
dut_pid=$!
wait_for_dut_server
}

reap_dut_server() {
local status=0

wait "$dut_pid" || status=$?
dut_pid=""
return "$status"
}

test_xdp_features() {
setup

## XDP_PASS
./xdp_features -f XDP_PASS -D $V1_IP6 -T $V0_IP6 v1 &
wait_for_dut_server
start_dut_server -f XDP_PASS -D $V1_IP6 -T $V0_IP6 v1
ip netns exec ${NS} ./xdp_features -t -f XDP_PASS \
-D $V1_IP6 -C $V1_IP6 \
-T $V0_IP6 v0
[ $? -ne 0 ] && exit
reap_dut_server

## XDP_DROP
./xdp_features -f XDP_DROP -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1 &
wait_for_dut_server
start_dut_server -f XDP_DROP -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1
ip netns exec ${NS} ./xdp_features -t -f XDP_DROP \
-D ::ffff:$V1_IP4 \
-C ::ffff:$V1_IP4 \
-T ::ffff:$V0_IP4 v0
[ $? -ne 0 ] && exit
reap_dut_server

## XDP_ABORTED
./xdp_features -f XDP_ABORTED -D $V1_IP6 -T $V0_IP6 v1 &
wait_for_dut_server
start_dut_server -f XDP_ABORTED -D $V1_IP6 -T $V0_IP6 v1
ip netns exec ${NS} ./xdp_features -t -f XDP_ABORTED \
-D $V1_IP6 -C $V1_IP6 \
-T $V0_IP6 v0
[ $? -ne 0 ] && exit
reap_dut_server

## XDP_TX
./xdp_features -f XDP_TX -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1 &
wait_for_dut_server
start_dut_server -f XDP_TX -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1
ip netns exec ${NS} ./xdp_features -t -f XDP_TX \
-D ::ffff:$V1_IP4 \
-C ::ffff:$V1_IP4 \
-T ::ffff:$V0_IP4 v0
[ $? -ne 0 ] && exit
reap_dut_server

## XDP_REDIRECT
./xdp_features -f XDP_REDIRECT -D $V1_IP6 -T $V0_IP6 v1 &
wait_for_dut_server
start_dut_server -f XDP_REDIRECT -D $V1_IP6 -T $V0_IP6 v1
ip netns exec ${NS} ./xdp_features -t -f XDP_REDIRECT \
-D $V1_IP6 -C $V1_IP6 \
-T $V0_IP6 v0
[ $? -ne 0 ] && exit
reap_dut_server

## XDP_NDO_XMIT
./xdp_features -f XDP_NDO_XMIT -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1 &
wait_for_dut_server
start_dut_server -f XDP_NDO_XMIT -D ::ffff:$V1_IP4 -T ::ffff:$V0_IP4 v1
ip netns exec ${NS} ./xdp_features -t -f XDP_NDO_XMIT \
-D ::ffff:$V1_IP4 \
-C ::ffff:$V1_IP4 \
-T ::ffff:$V0_IP4 v0
ret=$?
cleanup
reap_dut_server
}

set -e
trap cleanup 2 3 6 9
trap cleanup EXIT
trap 'exit 129' HUP
trap 'exit 130' INT
trap 'exit 143' TERM

test_xdp_features

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