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|
#!/bin/bash
#
# SPDX-FileCopyrightText: 2013 Christian Babeux <christian.babeux@efficios.com>
# Copyright (C) 2015-2018 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
#
# SPDX-License-Identifier: GPL-2.0-only
TEST_DESC="LTTng - Event tracker test"
CURDIR=$(dirname "$0")/
TESTDIR="$CURDIR/../../.."
TESTAPP_PATH="$TESTDIR/utils/testapp"
TESTAPP_NAME="gen-ust-events"
TESTAPP_KERNEL_NAME="gen-kernel-test-events"
TESTAPP_BIN="$TESTAPP_PATH/$TESTAPP_NAME/$TESTAPP_NAME"
TESTAPP_KERNEL_BIN="$TESTAPP_PATH/$TESTAPP_KERNEL_NAME/$TESTAPP_KERNEL_NAME"
SESSION_NAME="tracker"
NR_ITER=1
NUM_GLOBAL_TESTS=2
NUM_UST_TESTS=283
NUM_KERNEL_TESTS=462
NUM_TESTS=$((NUM_UST_TESTS+NUM_KERNEL_TESTS+NUM_GLOBAL_TESTS))
NR_USEC_WAIT=0 #for UST gen events
SCRIPT_UID="$(id -u)"
SCRIPT_GID="$(id -g)"
SCRIPT_USERNAME="$(id -un)"
SCRIPT_GROUPNAME="$(id -gn)"
CHILD_PID=-1
WAIT_PATH=
TOUCH_BEFORE_LAST_PATH=
SYNC_BEFORE_LAST_PATH=
source $TESTDIR/utils/utils.sh
# Launch the testapp and execute it up until right before the last event. It is
# useful to do it in two seperate steps in order to test tracking and
# untracking on an active app.
function prepare_ust_app
{
TOUCH_BEFORE_LAST_PATH=$(mktemp -u -t tmp.${FUNCNAME[0]}_touch_before_last.XXXXXX)
SYNC_BEFORE_LAST_PATH=$(mktemp -u -t tmp.${FUNCNAME[0]}_sync_before_last.XXXXXX)
$TESTAPP_BIN -i $NR_ITER -w $NR_USEC_WAIT \
--sync-before-last-event-touch "$TOUCH_BEFORE_LAST_PATH" \
--sync-before-last-event "$SYNC_BEFORE_LAST_PATH" &
CHILD_PID=$!
# Wait for the app to execute all the way to right before the last
# event.
while [ ! -f "${TOUCH_BEFORE_LAST_PATH}" ]; do
sleep 0.01
done
}
# Generate the last event.
function trace_ust_app
{
# Ask the test app to generate the last event.
touch "$SYNC_BEFORE_LAST_PATH"
wait "$CHILD_PID"
ok $? "Traced application stopped."
rm "$SYNC_BEFORE_LAST_PATH"
rm "$TOUCH_BEFORE_LAST_PATH"
}
function prepare_kernel_app
{
WAIT_PATH=$(mktemp -u -t "tmp.${FUNCNAME[0]}_wait_path.XXXXXX")
"$TESTAPP_KERNEL_BIN" "$WAIT_PATH" $NR_ITER &
CHILD_PID=$!
}
function trace_kernel_app
{
touch "$WAIT_PATH"
wait "$CHILD_PID"
ok $? "Traced application stopped."
rm "$WAIT_PATH"
}
function test_event_tracker()
{
local trace_path
local domain="$1"
local expect_event="$2"
local wildcard="$3"
local tracker="$4"
local channel=''
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
if [ "$domain" = kernel ]; then
channel=chan
lttng_enable_kernel_channel 1 0 $SESSION_NAME $channel "--subbuf-size=8M --num-subbuf=4"
fi
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard" "$channel"
start_lttng_tracing_ok
lttng_track_"$domain"_ok "${tracker}"
prepare_"$domain"_app
trace_"$domain"_app
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
if [ "$expect_event" -eq 1 ]; then
trace_matches "$EVENT_NAME" $NR_ITER "$trace_path"
else
validate_trace_session_"$domain"_empty "$trace_path"
fi
rm -rf "$trace_path"
}
function test_event_vpid_tracker()
{
local trace_path
local domain="$1"
local expect_event="$2"
local wildcard="$3"
local channel=''
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
if [ "$domain" = kernel ]; then
channel=chan
lttng_enable_kernel_channel 1 0 $SESSION_NAME $channel "--subbuf-size=8M --num-subbuf=4"
fi
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard" "$channel"
prepare_"$domain"_app
start_lttng_tracing_ok
if [ "$expect_event" -eq 1 ]; then
lttng_track_"$domain"_ok "--vpid ${CHILD_PID}"
else
lttng_track_"$domain"_ok "--vpid $((CHILD_PID+1))"
fi
trace_"$domain"_app
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
if [ "$expect_event" -eq 1 ]; then
validate_trace "$EVENT_NAME" "$trace_path"
else
validate_trace_empty "$trace_path"
fi
rm -rf "$trace_path"
}
function test_event_pid_tracker()
{
local trace_path
local domain="$1"
local expect_event="$2"
local wildcard="$3"
local channel=''
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
if [ "$domain" = kernel ]; then
channel=chan
lttng_enable_kernel_channel 1 0 $SESSION_NAME $channel "--subbuf-size=8M --num-subbuf=4"
fi
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard" "$channel"
prepare_"$domain"_app
start_lttng_tracing_ok
if [ "$expect_event" -eq 1 ]; then
lttng_track_"$domain"_ok "--pid ${CHILD_PID}"
else
lttng_track_"$domain"_ok "--pid $((CHILD_PID+1))"
fi
trace_"$domain"_app
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
if [ "$expect_event" -eq 1 ]; then
validate_trace "$EVENT_NAME" "$trace_path"
else
validate_trace_empty "$trace_path"
fi
rm -rf "$trace_path"
}
function test_event_tracker_fail()
{
local trace_path
local domain="$1"
local wildcard="$2"
local tracker="$3"
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard"
lttng_track_"$domain"_fail "${tracker}"
destroy_lttng_session_ok $SESSION_NAME --no-wait
rm -rf "$trace_path"
}
function test_event_track_untrack()
{
local trace_path
local domain="$1"
local expect_event="$2"
local wildcard="$3"
local tracker="$4"
local channel=''
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
if [ "$domain" = kernel ]; then
channel=chan
lttng_enable_kernel_channel 1 0 $SESSION_NAME $channel "--subbuf-size=8M --num-subbuf=4"
fi
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard" "$channel"
start_lttng_tracing_ok
lttng_track_"$domain"_ok "${tracker}"
lttng_untrack_"$domain"_ok "${tracker}"
prepare_"$domain"_app
trace_"$domain"_app
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
if [ "$expect_event" -eq 1 ]; then
trace_matches "$EVENT_NAME" $NR_ITER "$trace_path"
else
validate_trace_session_"$domain"_empty "$trace_path"
fi
rm -rf "$trace_path"
}
function test_event_vpid_track_untrack()
{
local trace_path
local domain="$1"
local expect_event="$2"
local wildcard="$3"
local channel=''
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
if [ "$domain" = kernel ]; then
channel=chan
lttng_enable_kernel_channel 1 0 $SESSION_NAME $channel "--subbuf-size=8M --num-subbuf=4"
fi
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard" "$channel"
prepare_"$domain"_app
start_lttng_tracing_ok
lttng_track_"$domain"_ok "--vpid ${CHILD_PID}"
lttng_untrack_"$domain"_ok "--vpid ${CHILD_PID}"
trace_"$domain"_app
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
if [ "$expect_event" -eq 1 ]; then
validate_trace "$EVENT_NAME" "$trace_path"
else
validate_trace_empty "$trace_path"
fi
rm -rf "$trace_path"
}
function test_event_pid_track_untrack()
{
local trace_path
local domain="$1"
local expect_event="$2"
local wildcard="$3"
local channel=''
diag "${FUNCNAME[0]} $*"
trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path"
if [ "$domain" = kernel ]; then
channel=chan
lttng_enable_kernel_channel 1 0 $SESSION_NAME $channel "--subbuf-size=8M --num-subbuf=4"
fi
enable_"$domain"_lttng_event_ok $SESSION_NAME "$wildcard" "$channel"
prepare_"$domain"_app
start_lttng_tracing_ok
lttng_track_"$domain"_ok "--pid ${CHILD_PID}"
lttng_untrack_"$domain"_ok "--pid ${CHILD_PID}"
trace_"$domain"_app
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
if [ "$expect_event" -eq 1 ]; then
validate_trace "$EVENT_NAME" "$trace_path"
else
validate_trace_empty "$trace_path"
fi
rm -rf "$trace_path"
}
function test_event_ust_vpid_untrack_snapshot()
{
diag "${FUNCNAME[0]} $*"
local trace_path=$(mktemp -d -t tmp.${FUNCNAME[0]}_trace_path.XXXXXX)
create_lttng_session_ok $SESSION_NAME "$trace_path" "--snapshot"
enable_ust_lttng_event_ok $SESSION_NAME "$EVENT_NAME"
prepare_ust_app
lttng_untrack_ust_ok "--vpid --all"
start_lttng_tracing_ok
trace_ust_app
lttng_snapshot_record $SESSION_NAME
stop_lttng_tracing_ok
destroy_lttng_session_ok $SESSION_NAME --no-wait
snapshot_count=$(find "$trace_path" -name metadata | wc -l)
is "$snapshot_count" 0 "Number of snapshot is zero"
rm -rf "$trace_path"
}
# MUST set TESTDIR before calling those functions
plan_tests $NUM_TESTS
print_test_banner "$TEST_DESC"
bail_out_if_no_babeltrace
start_lttng_sessiond
diag "Test UST tracker"
if [ ! -x "$TESTAPP_BIN" ]; then
BAIL_OUT "No UST nevents binary detected."
fi
EVENT_NAME="tp:tptest"
# Both ordering of tracker type and `--all` are valid.
test_event_track_untrack ust 0 "${EVENT_NAME}" "--vgid --all"
test_event_track_untrack ust 0 "${EVENT_NAME}" "--all --vgid"
#vuid, vgid
# non-matching
test_event_tracker ust 0 "${EVENT_NAME}" "--vuid $((SCRIPT_UID+1))"
test_event_tracker ust 0 "${EVENT_NAME}" "--vgid $((SCRIPT_GID+1))"
test_event_tracker ust 0 "${EVENT_NAME}" "--vuid $((SCRIPT_UID+1)) --vgid $((SCRIPT_GID+1))"
test_event_tracker ust 0 "${EVENT_NAME}" "--vuid $((SCRIPT_UID+1)) --vgid ${SCRIPT_GID}"
test_event_tracker ust 0 "${EVENT_NAME}" "--vuid ${SCRIPT_UID} --vgid $((SCRIPT_GID+1))"
test_event_track_untrack ust 0 "${EVENT_NAME}" "--vuid ${SCRIPT_UID}"
test_event_track_untrack ust 0 "${EVENT_NAME}" "--vgid ${SCRIPT_GID}"
test_event_track_untrack ust 0 "${EVENT_NAME}" "--vuid --all"
test_event_track_untrack ust 0 "${EVENT_NAME}" "--vgid --all"
# matching
test_event_tracker ust 1 "${EVENT_NAME}" "--vuid ${SCRIPT_UID}"
test_event_tracker ust 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GID}"
test_event_tracker ust 1 "${EVENT_NAME}" "--vuid ${SCRIPT_UID} --vgid ${SCRIPT_GID}"
test_event_tracker ust 1 "${EVENT_NAME}" "--vuid ${SCRIPT_USERNAME}"
test_event_tracker ust 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GROUPNAME}"
test_event_tracker ust 1 "${EVENT_NAME}" "--vuid ${SCRIPT_UID},$((SCRIPT_UID+1))"
test_event_tracker ust 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GID},$((SCRIPT_GID+1))"
test_event_tracker ust 1 "${EVENT_NAME}" "--vuid ${SCRIPT_USERNAME},$((SCRIPT_UID+1))"
test_event_tracker ust 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GROUPNAME},$((SCRIPT_GID+1))"
test_event_tracker ust 1 "${EVENT_NAME}" "--vuid --all"
test_event_tracker ust 1 "${EVENT_NAME}" "--vgid --all"
#fail
test_event_tracker_fail ust "${EVENT_NAME}" "--vuid lttng_unexisting_user"
test_event_tracker_fail ust "${EVENT_NAME}" "--vgid lttng_unexisting_group"
#vpid
#non-matching
test_event_track_untrack ust 0 "${EVENT_NAME}" "--vpid --all"
test_event_vpid_tracker ust 0 "${EVENT_NAME}"
test_event_vpid_track_untrack ust 0 "${EVENT_NAME}"
#matching
test_event_tracker ust 1 "${EVENT_NAME}" "--vpid --all"
test_event_vpid_tracker ust 1 "${EVENT_NAME}"
#snapshot untrack vpid
test_event_ust_vpid_untrack_snapshot
#pid (backward compat)
#non-matching
test_event_pid_tracker ust 0 "${EVENT_NAME}"
test_event_pid_track_untrack ust 0 "${EVENT_NAME}"
test_event_track_untrack ust 0 "${EVENT_NAME}" "--pid --all" # backward compat
#matching
test_event_tracker ust 1 "${EVENT_NAME}" "--pid --all" # backward compat
test_event_pid_tracker ust 1 "${EVENT_NAME}"
check_skip_kernel_test "$NUM_KERNEL_TESTS" "Skipping kernel tracker tests." ||
{
diag "Test kernel tracker"
modprobe lttng-test
ok $? "Loading lttng-test module"
EVENT_NAME="lttng_test_filter_event"
# vuid, vgid, vpid
# non-matching
test_event_tracker kernel 0 "${EVENT_NAME}" "--vuid $((SCRIPT_UID+1))"
test_event_tracker kernel 0 "${EVENT_NAME}" "--vgid $((SCRIPT_GID+1))"
test_event_tracker kernel 0 "${EVENT_NAME}" "--vuid $((SCRIPT_UID+1)) --vgid $((SCRIPT_GID+1))"
test_event_tracker kernel 0 "${EVENT_NAME}" "--vuid $((SCRIPT_UID+1)) --vgid ${SCRIPT_GID}"
test_event_tracker kernel 0 "${EVENT_NAME}" "--vuid ${SCRIPT_UID} --vgid $((SCRIPT_GID+1))"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--vuid ${SCRIPT_UID}"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--vgid ${SCRIPT_GID}"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--vuid --all"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--vgid --all"
# matching
test_event_tracker kernel 1 "${EVENT_NAME}" "--vuid ${SCRIPT_UID}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GID}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vuid ${SCRIPT_UID} --vgid ${SCRIPT_GID}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vuid ${SCRIPT_USERNAME}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GROUPNAME}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vuid ${SCRIPT_UID},$((SCRIPT_UID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GID},$((SCRIPT_GID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vuid ${SCRIPT_USERNAME},$((SCRIPT_UID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vgid ${SCRIPT_GROUPNAME},$((SCRIPT_GID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vuid --all"
test_event_tracker kernel 1 "${EVENT_NAME}" "--vgid --all"
#fail
test_event_tracker_fail kernel "${EVENT_NAME}" "--vuid lttng_unexisting_user"
test_event_tracker_fail kernel "${EVENT_NAME}" "--vgid lttng_unexisting_group"
#uid, gid
# non-matching
test_event_tracker kernel 0 "${EVENT_NAME}" "--uid $((SCRIPT_UID+1))"
test_event_tracker kernel 0 "${EVENT_NAME}" "--gid $((SCRIPT_GID+1))"
test_event_tracker kernel 0 "${EVENT_NAME}" "--uid $((SCRIPT_UID+1)) --gid $((SCRIPT_GID+1))"
test_event_tracker kernel 0 "${EVENT_NAME}" "--uid $((SCRIPT_UID+1)) --gid ${SCRIPT_GID}"
test_event_tracker kernel 0 "${EVENT_NAME}" "--uid ${SCRIPT_UID} --gid $((SCRIPT_GID+1))"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--uid ${SCRIPT_UID}"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--gid ${SCRIPT_GID}"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--uid --all"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--gid --all"
# matching
test_event_tracker kernel 1 "${EVENT_NAME}" "--uid ${SCRIPT_UID}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--gid ${SCRIPT_GID}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--uid ${SCRIPT_UID} --gid ${SCRIPT_GID}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--uid ${SCRIPT_USERNAME}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--gid ${SCRIPT_GROUPNAME}"
test_event_tracker kernel 1 "${EVENT_NAME}" "--uid ${SCRIPT_UID},$((SCRIPT_UID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--gid ${SCRIPT_GID},$((SCRIPT_GID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--uid ${SCRIPT_USERNAME},$((SCRIPT_UID+1))"
test_event_tracker kernel 1 "${EVENT_NAME}" "--gid ${SCRIPT_GROUPNAME},$((SCRIPT_GID+1))"
#fail
test_event_tracker_fail kernel "${EVENT_NAME}" "--uid lttng_unexisting_user"
test_event_tracker_fail kernel "${EVENT_NAME}" "--gid lttng_unexisting_group"
#vpid
#non-matching
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--vpid --all"
test_event_vpid_tracker kernel 0 "${EVENT_NAME}"
test_event_vpid_track_untrack kernel 0 "${EVENT_NAME}"
#matching
test_event_tracker kernel 1 "${EVENT_NAME}" "--vpid --all"
test_event_vpid_tracker kernel 1 "${EVENT_NAME}"
#pid
#non-matching
test_event_pid_tracker kernel 0 "${EVENT_NAME}"
test_event_pid_track_untrack kernel 0 "${EVENT_NAME}"
test_event_track_untrack kernel 0 "${EVENT_NAME}" "--pid --all"
#matching
test_event_tracker kernel 1 "${EVENT_NAME}" "--pid --all"
test_event_pid_tracker kernel 1 "${EVENT_NAME}"
# When using session destroy with '--no-wait', the quick
# exit at the end means that the lttng-test modules is
# still marked as being in use and 'modprobe --remove' fails.
#
# It is possible to work around the issue by not setting
# '--no-wait' on the last kernel test, but it seems like
# an easy detail to forget about.
#
# The sleep here gives the system a small amount of time to
# finish wrapping up the session that had the lttng-test kernel
# module loaded.
sleep 1
modprobe --remove lttng-test
ok $? "Unloading lttng-test module"
}
stop_lttng_sessiond
|
