add tests verifying filter predicates work for 1/2/4/8/16 byte values, IPv4, IPv6, MAC addresses and strings; use predicats at event and subsystem level.
Signed-off-by: Alan Maguire alan.maguire@oracle.com --- .../selftests/ftrace/test.d/event/filter.tc | 91 +++++++++++++++++++ 1 file changed, 91 insertions(+) create mode 100644 tools/testing/selftests/ftrace/test.d/event/filter.tc
diff --git a/tools/testing/selftests/ftrace/test.d/event/filter.tc b/tools/testing/selftests/ftrace/test.d/event/filter.tc new file mode 100644 index 000000000000..21d4715e2176 --- /dev/null +++ b/tools/testing/selftests/ftrace/test.d/event/filter.tc @@ -0,0 +1,91 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# description: event tracing - enable filter predicates +# requires: set_event events/sched +# flags: + +do_reset() { + echo 0 > ${event}/enable + echo 0 > ${event}/filter + clear_trace +} + +fail() { #msg + echo $1 + exit_fail +} + +test_filter() { # event filter cmd + event=$1 + filter="$2" + cmd=$3 + findevent=`basename $event` + echo "$filter" > ${event}/filter + echo 1 > ${event}/enable + $cmd + count=`grep $findevent trace |wc -l` + if [ $count -lt 1 ]; then + fail "at least one $event should be recorded for '$filter'" + fi + do_reset +} + +# verify filter predicates at trace event/subsys level for +# - string (prev_comm) +# - 1-byte value (common_flags) +# - 2-byte value (common_type) +# - 4-byte value (next_pid) +# - 8-byte value (prev_state) + +for event in events/sched/sched_switch events/sched +do + for filter in "prev_comm == 'ftracetest'" \ + "common_flags != 0" \ + "common_type >= 0" \ + "next_pid > 0" \ + "prev_state != 0" + do + test_filter "$event" "$filter" "yield" + done +done + +# verify '==', '!=' filter predicates for IPv4 addresses at event/subsys +# level +for event in events/fib/fib_table_lookup events/fib ; do + for filter in "dst == 127.0.0.1" \ + "src != 127.0.0.1" + do + test_filter "$event" "$filter" "ping -c 1 127.0.0.1" + done +done + +# verify '==', '!=' filter predicates for IPv6 addresses/16-byte arrays +# at event/subsys level +for event in events/fib6/fib6_table_lookup events/fib6 ; do + for filter in "dst == 0x00000000000000000000000000000001" \ + "src != 0x00000000000000000000000000000001" \ + "dst == ::1" \ + "src != ::1" \ + "dst == 0:0:0:0:0:0:0:1" \ + "dst == 0000:0000:0000:0000:0000:0000:0000:00001" + do + test_filter "$event" "$filter" "ping -c 1 -6 ::1" + done +done + +set +e +modprobe cfg80211 +set -e + +if [[ -d events/cfg80211/rdev_get_key ]]; then + for event in events/cfg80211/rdev_get_key ; do + for filter in "mac_addr == de:ad:be:ef:de:ad" \ + "mac_addr != AB:CD:EF:01:23:45" + do + echo "$filter" > events/cfg80211/rdev_get_key/filter + echo 0 > events/cfg80211/rdev_get_key/filter + done + done +fi + +exit 0