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