Something went wrong. Try again.
Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
Something went wrong. Try again.
Shell
at master
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515#!/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 $0)/../../../net/forwarding
ALL_TESTS=" init_test trap_action_test trap_metadata_test bad_trap_test bad_trap_action_test trap_stats_test trap_group_action_test bad_trap_group_test trap_group_stats_test trap_policer_test trap_policer_bind_test port_del_test dev_del_test"NETDEVSIM_PATH=/sys/bus/netdevsim/DEV_ADDR=1337DEV=netdevsim${DEV_ADDR}DEBUGFS_DIR=/sys/kernel/debug/netdevsim/$DEV/SLEEP_TIME=1NETDEV=""NUM_NETIFS=0source $lib_dir/lib.sh
DEVLINK_DEV=source $lib_dir/devlink_lib.shDEVLINK_DEV=netdevsim/${DEV}
require_command udevadm
modprobe netdevsim &> /dev/nullif [ ! -d "$NETDEVSIM_PATH" ]; then echo "SKIP: No netdevsim support" exit 1fi
if [ -d "${NETDEVSIM_PATH}/devices/netdevsim${DEV_ADDR}" ]; then echo "SKIP: Device netdevsim${DEV_ADDR} already exists" exit 1fi
check_netdev_down(){ state=$(cat /sys/class/net/${NETDEV}/flags)
if [ $((state & 1)) -ne 0 ]; then echo "WARNING: unexpected interface UP, disable NetworkManager?"
ip link set dev $NETDEV down 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" if [ $trap_name == "ingress_flow_action_drop" ] || [ $trap_name == "egress_flow_action_drop" ]; then devlink_trap_metadata_test $trap_name "flow_action_cookie" check_err $? "Flow action cookie not reported as metadata of trap $trap_name" fi 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
check_netdev_down 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"
echo "y"> $DEBUGFS_DIR/fail_trap_drop_counter_get devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null check_fail $? "Managed to read trap (hard dropped) statistics when should not" echo "n"> $DEBUGFS_DIR/fail_trap_drop_counter_get devlink -s trap show $DEVLINK_DEV trap $trap_name &> /dev/null check_err $? "Did not manage to read trap (hard dropped) statistics when should"
devlink_trap_drop_stats_idle_test $trap_name check_fail $? "Drop stats of trap $trap_name idle when should not" 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
check_netdev_down 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"}
trap_policer_test(){ local packets_t0 local packets_t1
RET=0
if [ $(devlink_trap_policers_num_get) -eq 0 ]; then check_err 1 "Failed to dump policers" fi
devlink trap policer set $DEVLINK_DEV policer 1337 &> /dev/null check_fail $? "Did not get an error for setting a non-existing policer" devlink trap policer show $DEVLINK_DEV policer 1337 &> /dev/null check_fail $? "Did not get an error for getting a non-existing policer"
devlink trap policer set $DEVLINK_DEV policer 1 rate 2000 burst 16 check_err $? "Failed to set valid parameters for a valid policer" if [ $(devlink_trap_policer_rate_get 1) -ne 2000 ]; then check_err 1 "Policer rate was not changed" fi if [ $(devlink_trap_policer_burst_get 1) -ne 16 ]; then check_err 1 "Policer burst size was not changed" fi
devlink trap policer set $DEVLINK_DEV policer 1 rate 0 &> /dev/null check_fail $? "Policer rate was changed to rate lower than limit" devlink trap policer set $DEVLINK_DEV policer 1 rate 9000 &> /dev/null check_fail $? "Policer rate was changed to rate higher than limit" devlink trap policer set $DEVLINK_DEV policer 1 burst 2 &> /dev/null check_fail $? "Policer burst size was changed to burst size lower than limit" devlink trap policer set $DEVLINK_DEV policer 1 rate 65537 &> /dev/null check_fail $? "Policer burst size was changed to burst size higher than limit" echo "y" > $DEBUGFS_DIR/fail_trap_policer_set devlink trap policer set $DEVLINK_DEV policer 1 rate 3000 &> /dev/null check_fail $? "Managed to set policer rate when should not" echo "n" > $DEBUGFS_DIR/fail_trap_policer_set if [ $(devlink_trap_policer_rate_get 1) -ne 2000 ]; then check_err 1 "Policer rate was changed to an invalid value" fi if [ $(devlink_trap_policer_burst_get 1) -ne 16 ]; then check_err 1 "Policer burst size was changed to an invalid value" fi
packets_t0=$(devlink_trap_policer_rx_dropped_get 1) sleep .5 packets_t1=$(devlink_trap_policer_rx_dropped_get 1) if [ ! $packets_t1 -gt $packets_t0 ]; then check_err 1 "Policer drop counter was not incremented" fi
echo "y"> $DEBUGFS_DIR/fail_trap_policer_counter_get devlink -s trap policer show $DEVLINK_DEV policer 1 &> /dev/null check_fail $? "Managed to read policer drop counter when should not" echo "n"> $DEBUGFS_DIR/fail_trap_policer_counter_get devlink -s trap policer show $DEVLINK_DEV policer 1 &> /dev/null check_err $? "Did not manage to read policer drop counter when should"
log_test "Trap policer"}
trap_group_check_policer(){ local group_name=$1; shift
devlink -j -p trap group show $DEVLINK_DEV group $group_name \ | jq -e '.[][][]["policer"]' &> /dev/null}
trap_policer_bind_test(){ RET=0
devlink trap group set $DEVLINK_DEV group l2_drops policer 1 check_err $? "Failed to bind a valid policer" if [ $(devlink_trap_group_policer_get "l2_drops") -ne 1 ]; then check_err 1 "Bound policer was not changed" fi
devlink trap group set $DEVLINK_DEV group l2_drops policer 1337 \ &> /dev/null check_fail $? "Did not get an error for binding a non-existing policer" if [ $(devlink_trap_group_policer_get "l2_drops") -ne 1 ]; then check_err 1 "Bound policer was changed when should not" fi
devlink trap group set $DEVLINK_DEV group l2_drops policer 0 check_err $? "Failed to unbind a policer when using ID 0" trap_group_check_policer "l2_drops" check_fail $? "Trap group has a policer after unbinding with ID 0"
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