diff options
Diffstat (limited to 'tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh')
| -rwxr-xr-x | tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh new file mode 100755 index 000000000000..f101ab9441e2 --- /dev/null +++ b/tools/testing/selftests/drivers/net/netdevsim/devlink_trap.sh @@ -0,0 +1,364 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# This test is for checking devlink-trap functionality. It makes use of +# netdevsim which implements the required callbacks. + +lib_dir=$(dirname $0)/../../../net/forwarding + +ALL_TESTS=" + init_test + trap_action_test + trap_metadata_test + bad_trap_test + bad_trap_action_test + trap_stats_test + trap_group_action_test + bad_trap_group_test + trap_group_stats_test + port_del_test + dev_del_test +" +NETDEVSIM_PATH=/sys/bus/netdevsim/ +DEV_ADDR=1337 +DEV=netdevsim${DEV_ADDR} +DEVLINK_DEV=netdevsim/${DEV} +SLEEP_TIME=1 +NETDEV="" +NUM_NETIFS=0 +source $lib_dir/lib.sh +source $lib_dir/devlink_lib.sh + +require_command udevadm + +modprobe netdevsim &> /dev/null +if [ ! -d "$NETDEVSIM_PATH" ]; then + echo "SKIP: No netdevsim support" + exit 1 +fi + +if [ -d "${NETDEVSIM_PATH}/devices/netdevsim${DEV_ADDR}" ]; then + echo "SKIP: Device netdevsim${DEV_ADDR} already exists" + exit 1 +fi + +init_test() +{ + RET=0 + + test $(devlink_traps_num_get) -ne 0 + check_err $? "No traps were registered" + + log_test "Initialization" +} + +trap_action_test() +{ + local orig_action + local trap_name + local action + + RET=0 + + for trap_name in $(devlink_traps_get); do + # The action of non-drop traps cannot be changed. + if [ $(devlink_trap_type_get $trap_name) = "drop" ]; then + devlink_trap_action_set $trap_name "trap" + action=$(devlink_trap_action_get $trap_name) + if [ $action != "trap" ]; then + check_err 1 "Trap $trap_name did not change action to trap" + fi + + devlink_trap_action_set $trap_name "drop" + action=$(devlink_trap_action_get $trap_name) + if [ $action != "drop" ]; then + check_err 1 "Trap $trap_name did not change action to drop" + fi + else + orig_action=$(devlink_trap_action_get $trap_name) + + devlink_trap_action_set $trap_name "trap" + action=$(devlink_trap_action_get $trap_name) + if [ $action != $orig_action ]; then + check_err 1 "Trap $trap_name changed action when should not" + fi + + devlink_trap_action_set $trap_name "drop" + action=$(devlink_trap_action_get $trap_name) + if [ $action != $orig_action ]; then + check_err 1 "Trap $trap_name changed action when should not" + fi + fi + done + + log_test "Trap action" +} + +trap_metadata_test() +{ + local trap_name + + RET=0 + + for trap_name in $(devlink_traps_get); do + devlink_trap_metadata_test $trap_name "input_port" + check_err $? "Input port not reported as metadata of trap $trap_name" + done + + log_test "Trap metadata" +} + +bad_trap_test() +{ + RET=0 + + devlink_trap_action_set "made_up_trap" "drop" + check_fail $? "Did not get an error for non-existing trap" + + log_test "Non-existing trap" +} + +bad_trap_action_test() +{ + local traps_arr + local trap_name + + RET=0 + + # Pick first trap. + traps_arr=($(devlink_traps_get)) + trap_name=${traps_arr[0]} + + devlink_trap_action_set $trap_name "made_up_action" + check_fail $? "Did not get an error for non-existing trap action" + + log_test "Non-existing trap action" +} + +trap_stats_test() +{ + local trap_name + + RET=0 + + for trap_name in $(devlink_traps_get); do + devlink_trap_stats_idle_test $trap_name + check_err $? "Stats of trap $trap_name not idle when netdev down" + + ip link set dev $NETDEV up + + if [ $(devlink_trap_type_get $trap_name) = "drop" ]; then + devlink_trap_action_set $trap_name "trap" + devlink_trap_stats_idle_test $trap_name + check_fail $? "Stats of trap $trap_name idle when action is trap" + + devlink_trap_action_set $trap_name "drop" + devlink_trap_stats_idle_test $trap_name + check_err $? "Stats of trap $trap_name not idle when action is drop" + else + devlink_trap_stats_idle_test $trap_name + check_fail $? "Stats of non-drop trap $trap_name idle when should not" + fi + + ip link set dev $NETDEV down + done + + log_test "Trap statistics" +} + +trap_group_action_test() +{ + local curr_group group_name + local trap_name + local trap_type + local action + + RET=0 + + for group_name in $(devlink_trap_groups_get); do + devlink_trap_group_action_set $group_name "trap" + + for trap_name in $(devlink_traps_get); do + curr_group=$(devlink_trap_group_get $trap_name) + if [ $curr_group != $group_name ]; then + continue + fi + + trap_type=$(devlink_trap_type_get $trap_name) + if [ $trap_type != "drop" ]; then + continue + fi + + action=$(devlink_trap_action_get $trap_name) + if [ $action != "trap" ]; then + check_err 1 "Trap $trap_name did not change action to trap" + fi + done + + devlink_trap_group_action_set $group_name "drop" + + for trap_name in $(devlink_traps_get); do + curr_group=$(devlink_trap_group_get $trap_name) + if [ $curr_group != $group_name ]; then + continue + fi + + trap_type=$(devlink_trap_type_get $trap_name) + if [ $trap_type != "drop" ]; then + continue + fi + + action=$(devlink_trap_action_get $trap_name) + if [ $action != "drop" ]; then + check_err 1 "Trap $trap_name did not change action to drop" + fi + done + done + + log_test "Trap group action" +} + +bad_trap_group_test() +{ + RET=0 + + devlink_trap_group_action_set "made_up_trap_group" "drop" + check_fail $? "Did not get an error for non-existing trap group" + + log_test "Non-existing trap group" +} + +trap_group_stats_test() +{ + local group_name + + RET=0 + + for group_name in $(devlink_trap_groups_get); do + devlink_trap_group_stats_idle_test $group_name + check_err $? "Stats of trap group $group_name not idle when netdev down" + + ip link set dev $NETDEV up + + devlink_trap_group_action_set $group_name "trap" + devlink_trap_group_stats_idle_test $group_name + check_fail $? "Stats of trap group $group_name idle when action is trap" + + devlink_trap_group_action_set $group_name "drop" + ip link set dev $NETDEV down + done + + log_test "Trap group statistics" +} + +port_del_test() +{ + local group_name + local i + + # The test never fails. It is meant to exercise different code paths + # and make sure we properly dismantle a port while packets are + # in-flight. + RET=0 + + devlink_traps_enable_all + + for i in $(seq 1 10); do + ip link set dev $NETDEV up + + sleep $SLEEP_TIME + + netdevsim_port_destroy + netdevsim_port_create + udevadm settle + done + + devlink_traps_disable_all + + log_test "Port delete" +} + +dev_del_test() +{ + local group_name + local i + + # The test never fails. It is meant to exercise different code paths + # and make sure we properly unregister traps while packets are + # in-flight. + RET=0 + + devlink_traps_enable_all + + for i in $(seq 1 10); do + ip link set dev $NETDEV up + + sleep $SLEEP_TIME + + cleanup + setup_prepare + done + + devlink_traps_disable_all + + log_test "Device delete" +} + +netdevsim_dev_create() +{ + echo "$DEV_ADDR 0" > ${NETDEVSIM_PATH}/new_device +} + +netdevsim_dev_destroy() +{ + echo "$DEV_ADDR" > ${NETDEVSIM_PATH}/del_device +} + +netdevsim_port_create() +{ + echo 1 > ${NETDEVSIM_PATH}/devices/${DEV}/new_port +} + +netdevsim_port_destroy() +{ + echo 1 > ${NETDEVSIM_PATH}/devices/${DEV}/del_port +} + +setup_prepare() +{ + local netdev + + netdevsim_dev_create + + if [ ! -d "${NETDEVSIM_PATH}/devices/${DEV}" ]; then + echo "Failed to create netdevsim device" + exit 1 + fi + + netdevsim_port_create + + if [ ! -d "${NETDEVSIM_PATH}/devices/${DEV}/net/" ]; then + echo "Failed to create netdevsim port" + exit 1 + fi + + # Wait for udev to rename newly created netdev. + udevadm settle + + NETDEV=$(ls ${NETDEVSIM_PATH}/devices/${DEV}/net/) +} + +cleanup() +{ + pre_cleanup + netdevsim_port_destroy + netdevsim_dev_destroy +} + +trap cleanup EXIT + +setup_prepare + +tests_run + +exit $EXIT_STATUS |