502 lines
12 KiB
Bash
502 lines
12 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 $0)/../../../net/forwarding
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ALL_TESTS="
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init_test
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trap_action_test
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trap_metadata_test
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bad_trap_test
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bad_trap_action_test
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trap_stats_test
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trap_group_action_test
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bad_trap_group_test
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trap_group_stats_test
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trap_policer_test
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trap_policer_bind_test
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port_del_test
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dev_del_test
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"
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NETDEVSIM_PATH=/sys/bus/netdevsim/
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DEV_ADDR=1337
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DEV=netdevsim${DEV_ADDR}
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DEBUGFS_DIR=/sys/kernel/debug/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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DEVLINK_DEV=
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source $lib_dir/devlink_lib.sh
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DEVLINK_DEV=netdevsim/${DEV}
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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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if [ $trap_name == "ingress_flow_action_drop" ] ||
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[ $trap_name == "egress_flow_action_drop" ]; then
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devlink_trap_metadata_test $trap_name "flow_action_cookie"
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check_err $? "Flow action cookie not reported as metadata of trap $trap_name"
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fi
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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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echo "y"> $DEBUGFS_DIR/fail_trap_drop_counter_get
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devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null
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check_fail $? "Managed to read trap (hard dropped) statistics when should not"
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echo "n"> $DEBUGFS_DIR/fail_trap_drop_counter_get
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devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null
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check_err $? "Did not manage to read trap (hard dropped) statistics when should"
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devlink_trap_drop_stats_idle_test $trap_name
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check_fail $? "Drop stats of trap $trap_name idle when should not"
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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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trap_policer_test()
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{
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local packets_t0
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local packets_t1
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RET=0
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if [ $(devlink_trap_policers_num_get) -eq 0 ]; then
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check_err 1 "Failed to dump policers"
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fi
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devlink trap policer set $DEVLINK_DEV policer 1337 &> /dev/null
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check_fail $? "Did not get an error for setting a non-existing policer"
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devlink trap policer show $DEVLINK_DEV policer 1337 &> /dev/null
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check_fail $? "Did not get an error for getting a non-existing policer"
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devlink trap policer set $DEVLINK_DEV policer 1 rate 2000 burst 16
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check_err $? "Failed to set valid parameters for a valid policer"
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if [ $(devlink_trap_policer_rate_get 1) -ne 2000 ]; then
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check_err 1 "Policer rate was not changed"
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fi
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if [ $(devlink_trap_policer_burst_get 1) -ne 16 ]; then
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check_err 1 "Policer burst size was not changed"
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fi
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devlink trap policer set $DEVLINK_DEV policer 1 rate 0 &> /dev/null
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check_fail $? "Policer rate was changed to rate lower than limit"
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devlink trap policer set $DEVLINK_DEV policer 1 rate 9000 &> /dev/null
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check_fail $? "Policer rate was changed to rate higher than limit"
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devlink trap policer set $DEVLINK_DEV policer 1 burst 2 &> /dev/null
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check_fail $? "Policer burst size was changed to burst size lower than limit"
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devlink trap policer set $DEVLINK_DEV policer 1 rate 65537 &> /dev/null
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check_fail $? "Policer burst size was changed to burst size higher than limit"
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echo "y" > $DEBUGFS_DIR/fail_trap_policer_set
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devlink trap policer set $DEVLINK_DEV policer 1 rate 3000 &> /dev/null
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check_fail $? "Managed to set policer rate when should not"
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echo "n" > $DEBUGFS_DIR/fail_trap_policer_set
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if [ $(devlink_trap_policer_rate_get 1) -ne 2000 ]; then
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check_err 1 "Policer rate was changed to an invalid value"
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fi
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if [ $(devlink_trap_policer_burst_get 1) -ne 16 ]; then
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check_err 1 "Policer burst size was changed to an invalid value"
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fi
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packets_t0=$(devlink_trap_policer_rx_dropped_get 1)
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sleep .5
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packets_t1=$(devlink_trap_policer_rx_dropped_get 1)
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if [ ! $packets_t1 -gt $packets_t0 ]; then
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check_err 1 "Policer drop counter was not incremented"
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fi
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echo "y"> $DEBUGFS_DIR/fail_trap_policer_counter_get
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devlink -s trap policer show $DEVLINK_DEV policer 1 &> /dev/null
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check_fail $? "Managed to read policer drop counter when should not"
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echo "n"> $DEBUGFS_DIR/fail_trap_policer_counter_get
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devlink -s trap policer show $DEVLINK_DEV policer 1 &> /dev/null
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check_err $? "Did not manage to read policer drop counter when should"
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log_test "Trap policer"
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}
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trap_group_check_policer()
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{
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local group_name=$1; shift
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devlink -j -p trap group show $DEVLINK_DEV group $group_name \
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| jq -e '.[][][]["policer"]' &> /dev/null
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}
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trap_policer_bind_test()
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{
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RET=0
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devlink trap group set $DEVLINK_DEV group l2_drops policer 1
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check_err $? "Failed to bind a valid policer"
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if [ $(devlink_trap_group_policer_get "l2_drops") -ne 1 ]; then
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check_err 1 "Bound policer was not changed"
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fi
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devlink trap group set $DEVLINK_DEV group l2_drops policer 1337 \
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&> /dev/null
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check_fail $? "Did not get an error for binding a non-existing policer"
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if [ $(devlink_trap_group_policer_get "l2_drops") -ne 1 ]; then
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check_err 1 "Bound policer was changed when should not"
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fi
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devlink trap group set $DEVLINK_DEV group l2_drops policer 0
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check_err $? "Failed to unbind a policer when using ID 0"
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trap_group_check_policer "l2_drops"
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check_fail $? "Trap group has a policer after unbinding with ID 0"
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||
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|
|
||
|
|
devlink trap group set $DEVLINK_DEV group l2_drops policer 1
|
||
|
|
check_err $? "Failed to bind a valid policer"
|
||
|
|
|
||
|
|
devlink trap group set $DEVLINK_DEV group l2_drops nopolicer
|
||
|
|
check_err $? "Failed to unbind a policer when using 'nopolicer' keyword"
|
||
|
|
trap_group_check_policer "l2_drops"
|
||
|
|
check_fail $? "Trap group has a policer after unbinding with 'nopolicer' keyword"
|
||
|
|
|
||
|
|
devlink trap group set $DEVLINK_DEV group l2_drops policer 1
|
||
|
|
check_err $? "Failed to bind a valid policer"
|
||
|
|
|
||
|
|
echo "y"> $DEBUGFS_DIR/fail_trap_group_set
|
||
|
|
devlink trap group set $DEVLINK_DEV group l2_drops policer 2 \
|
||
|
|
&> /dev/null
|
||
|
|
check_fail $? "Managed to bind a policer when should not"
|
||
|
|
echo "n"> $DEBUGFS_DIR/fail_trap_group_set
|
||
|
|
devlink trap group set $DEVLINK_DEV group l2_drops policer 2
|
||
|
|
check_err $? "Did not manage to bind a policer when should"
|
||
|
|
|
||
|
|
devlink trap group set $DEVLINK_DEV group l2_drops action drop \
|
||
|
|
policer 1337 &> /dev/null
|
||
|
|
check_fail $? "Did not get an error for partially modified trap group"
|
||
|
|
|
||
|
|
log_test "Trap policer binding"
|
||
|
|
}
|
||
|
|
|
||
|
|
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
|