NetBSD/tests/dev/sysmon/t_swsensor.sh

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# $NetBSD: t_swsensor.sh,v 1.9 2015/04/23 23:23:28 pgoyette Exp $
get_sensor_info() {
rump.envstat -x | \
sed -e "\;swsensor;,\;/array;p" -e "d"
}
get_sensor_key() {
local v
v=$(get_sensor_info | grep -A1 $1 | grep integer | \
sed -e 's;<[/a-z]*>;;g')
if [ -z "$v" ] ; then
v="key_$1_not_found"
fi
echo $v
}
get_powerd_event_count() {
grep "not running" powerd.log | wc -l
}
get_rnd_bits_count() {
env RUMPHIJACK=blanket=/dev/random:/dev/urandom \
RUMP_SERVER=unix://t_swsensor_socket \
LD_PRELOAD=/usr/lib/librumphijack.so rndctl -l | \
grep "swsensor-sensor" | \
awk '{print $2}'
}
check_powerd_event() {
event=$(grep "not running" powerd.log | \
sed -e "$1p" -e "d" )
event=${event##*//}
script=${event%% *}
event=${event#* }
device=${event%% *}
event=${event#* }
state=${event%% *}
sensor=${event#* }
sensor=${sensor% *}
if [ "${script}" != "sensor_indicator" ] ; then
echo "Event uses wrong script: ${script}"
elif [ "${device}" != "swsensor" ] ; then
echo "Event uses wrong device: ${device}"
elif [ "${sensor}" != "sensor" ] ; then
echo "Event uses wrong sensor: ${sensor}"
elif [ "${state}" != "$2" ] ; then
echo "Event uses wrong state: ${state}"
fi
}
# Start the rump server, then load the swsensor module with the
# requested properties
start_rump() {
rump_allserver -l rumpvfs -l rumpdev -l rumpdev_sysmon ${RUMP_SERVER}
if [ $( get_sensor_info | wc -l ) -ne 0 ] ; then
rump.modunload swsensor
rump.modload -f $1 swsensor
else
rump.modload $1 swsensor
fi
return $?
}
common_head() {
atf_set descr "$1"
atf_set timeout 120
atf_set require.progs rump.powerd rump.envstat rump.modload \
rump.halt rump.sysctl rump_server \
sed grep awk \
rndctl expr
}
common_cleanup() {
rump.modunload swsensor
rump.halt
}
create_envsys_conf_files() {
cat << ENV0 > env0.conf
swsensor {
refresh-timeout = 2s;
}
ENV0
cat << ENV1 > env1.conf
swsensor {
sensor0 { critical-min = $(( $1 - $2 )); }
}
ENV1
cat << ENV2 > env2.conf
swsensor {
sensor0 { critical-min = $1; }
}
ENV2
}
# Test body common to all sensors
# $1 sensor mode
# $2 initial sensor value
# $3 initial limit
# $4 amount to lower limit
# $5 difference from limit to trigger event
# $6 sensor flags, for FHAS_ENTROPY and FMONNOTSUPP
common_body() {
# Start the rump-server process and load the module
modload_args="-i mode=$1 -i value=$2 -i limit=$3 ${6:+-i flags=$6}"
start_rump "$modload_args"
# create configuration files for updates
create_envsys_conf_files $3 $4
if [ $? -ne 0 ] ; then
atf_skip "Cannot set-up rump environment"
fi
# start powerd so we can detect sensor events
rump.powerd -n -d > powerd.log 2>&1 &
if [ -z "$(jobs)" ] ; then
skip_events=1
echo "Skipping event sub-tests - powerd did not start"
else
skip_events=0
expected_event=1
fi
# Step 0 - verify that sensor is registered
get_sensor_info | grep -q swsensor ||
atf_fail "0: Device swsensor not registered"
# Step 1 - update the refresh-timeout and verify
# (use $(( ... )) since the timeout is displayed in hex!)
rump.envstat -c env0.conf
if [ $(( $( get_sensor_key refresh-timeout ) )) -ne 2 ] ; then
atf_fail "1: Could not set refresh-timout to 2s"
fi
# Step 2 - verify that we can read sensor's value
if [ $1 -ne 0 -a $( get_sensor_key cur-value ) -ne $2 ] ; then
atf_fail "2: Value not available"
fi
# Step 3 - verify that changes in sensor value are seen
rump.sysctl -w hw.swsensor.cur_value=$(( $2 + 1 ))
if [ $( get_sensor_key cur-value ) -ne $(( $2 + 1 )) ] ; then
atf_fail "3: Value not updated"
fi
# Step 4 - if sensor provides hw limit, make sure we can read it
if [ $1 -ne 0 ] ; then
if [ $( get_sensor_key critical-min ) -ne $3 ] ; then
atf_fail "4: Limit not set by device"
fi
fi
# Step 5 - if sensor provides hw limit, make sure it works
if [ $1 -ne 0 -a ${skip_events} -eq 0 ] ; then
rump.sysctl -w hw.swsensor.cur_value=$(( $3 - $5 ))
sleep 5
cnt=$(get_powerd_event_count)
if [ ${cnt} -lt ${expected_event} ] ; then
atf_fail "5: No event triggered"
elif [ ${cnt} -gt ${expected_event} ] ; then
atf_fail "5: Multiple events triggered"
fi
evt=$( check_powerd_event ${cnt} "critical-under")
if [ -n "${evt}" ] ; then
atf_fail "5: ${evt}"
fi
expected_event=$(( 1 + ${expected_event} ))
fi
# Step 6 - verify that we return to normal state
if [ $1 -ne 0 -a ${skip_events} -eq 0 ] ; then
rump.sysctl -w hw.swsensor.cur_value=$(( $3 + $5 ))
sleep 5
cnt=$(get_powerd_event_count)
if [ ${cnt} -lt ${expected_event} ] ; then
atf_fail "6: No event triggered"
elif [ ${cnt} -gt ${expected_event} ] ; then
atf_fail "6: Multiple events triggered"
fi
evt=$( check_powerd_event ${cnt} "normal")
if [ -n "${evt}" ] ; then
atf_fail "6: ${evt}"
fi
expected_event=$(( 1 + ${expected_event} ))
fi
# Step 7 - verify that we can set our own limit
# Steps 7 thru 12 are skipped if the sensor cannot be monitored
if [ $( expr \( 0$6 / 2048 \) % 2 ) -ne 1 ] ; then
rump.envstat -c env1.conf
if [ $( get_sensor_key critical-min ) -ne $(( $3 - $4 )) ] ; then
atf_fail "7: Limit not set by envstat -c"
fi
# Step 8 - make sure user-set limit works
if [ ${skip_events} -eq 0 ] ; then
rump.sysctl -w hw.swsensor.cur_value=$(( $3 - $4 - $5 ))
sleep 5
cnt=$(get_powerd_event_count)
if [ ${cnt} -lt ${expected_event} ] ; then
atf_fail "8: No event triggered"
elif [ ${cnt} -gt ${expected_event} ] ; then
atf_fail "8: Multiple events triggered"
fi
evt=$( check_powerd_event ${cnt} "critical-under")
if [ -n "${evt}" ] ; then
atf_fail "8: ${evt}"
fi
expected_event=$(( 1 + ${expected_event} ))
fi
# Step 9 - verify that we return to normal state
if [ ${skip_events} -eq 0 ] ; then
rump.sysctl -w hw.swsensor.cur_value=$(( $3 - $4 + $5 ))
sleep 5
cnt=$(get_powerd_event_count)
if [ ${cnt} -lt ${expected_event} ] ; then
atf_fail "9: No event triggered"
elif [ ${cnt} -gt ${expected_event} ] ; then
atf_fail "9: Multiple events triggered"
fi
evt=$( check_powerd_event ${cnt} "normal")
if [ -n "${evt}" ] ; then
atf_fail "9: ${evt}"
fi
expected_event=$(( 1 + ${expected_event} ))
fi
# Step 10 - reset to defaults
rump.envstat -S
if [ $1 -eq 0 ] ; then
get_sensor_info | grep -q critical-min &&
atf_fail "10: Failed to clear a limit with envstat -S"
else
if [ $( get_sensor_key critical-min ) -ne $3 ] ; then
atf_fail "10: Limit not reset to initial value"
fi
fi
# Step 11 - see if more events occur
if [ ${skip_events} -eq 0 ] ; then
rump.envstat -c env0.conf
rump.sysctl -w hw.swsensor.cur_value=$(( $3 - $4 - $5 ))
sleep 5
cnt=$(get_powerd_event_count)
if [ ${cnt} -ge ${expected_event} ] ; then
if [ $1 -ne 2 ] ; then
atf_fail "11b Event triggered after reset"
fi
evt=$( check_powerd_event ${cnt} "critical-under")
if [ -n "${evt}" ] ; then
atf_fail "11a: ${evt}"
fi
fi
fi
# Step 12 - make sure we can set new limits once more
rump.envstat -c env2.conf
if [ $( get_sensor_key critical-min ) -ne $3 ] ; then
atf_fail "12a: Limit not reset to same value"
fi
rump.envstat -c env1.conf
if [ $( get_sensor_key critical-min ) -ne $(( $3 - $4 )) ] ; then
atf_fail "12b: Limit not reset to new value"
fi
fi
# Step 13 - confirm registration (or lack thereof) with rndctl
rnd_bits=$( get_rnd_bits_count )
if [ $( expr \( 0$6 / 8192 \) % 2 ) -eq 1 ] ; then
if [ -z "$rnd_bits" ] ; then
atf_fail "13a: Not registered with rndctl"
fi
else
if [ -n "$rnd_bits" ] ; then
atf_fail "13b: Wrongly registered with rndctl"
fi
fi
# Steps 14 and 15 are only if sensor is providing entropy
if [ $( expr \( 0$6 / 8192 \) % 2 ) -ne 1 ] ; then
return
fi
# Step 14 - make sure entropy collected when device is being polled
rump.envstat -c env0.conf
rump.sysctl -w hw.swsensor.cur_value=$3
sleep 5
rump.sysctl -w hw.swsensor.cur_value=$(( $3 + $4 ))
sleep 5
new_rnd_bits=$( get_rnd_bits_count )
if [ $new_rnd_bits -le $rnd_bits ] ; then
atf_expect_fail "PR kern/47661"
atf_fail "14a: entropy bits did not increase after polling"
fi
rnd_bits=$new_rnd_bits
sleep 5
new_rnd_bits=$( get_rnd_bits_count )
if [ $new_rnd_bits -gt $rnd_bits ] ; then
atf_expect_fail "PR kern/47661"
atf_fail "14b: entropy bits increased after poll with no value change"
fi
# Step 15 - make sure entropy collected when device is interrogated
#
rump.envstat -c env0.conf
rump.sysctl -w hw.swsensor.cur_value=$3
get_sensor_key cur-value
rnd_bits=$( get_rnd_bits_count )
rump.sysctl -w hw.swsensor.cur_value=$(( $3 + $4 ))
get_sensor_key cur-value
new_rnd_bits=$( get_rnd_bits_count )
if [ $new_rnd_bits -le $rnd_bits ] ; then
atf_expect_fail "PR kern/47661"
atf_fail "15a: entropy bits did not increase after interrogation"
fi
rnd_bits=$new_rnd_bits
get_sensor_key cur-value
new_rnd_bits=$( get_rnd_bits_count )
if [ $new_rnd_bits -gt $rnd_bits ] ; then
atf_expect_fail "PR kern/47661"
atf_fail "15b: entropy bits increased after interrogation with no value change"
fi
}
atf_test_case simple_sensor cleanup
simple_sensor_head() {
common_head "Test a simple sensor"
}
simple_sensor_body() {
common_body 0 50 30 10 1
}
simple_sensor_cleanup() {
common_cleanup
}
atf_test_case limit_sensor cleanup
limit_sensor_head() {
common_head "Test a sensor with internal limit"
}
limit_sensor_body() {
common_body 1 45 25 8 2
}
limit_sensor_cleanup() {
common_cleanup
}
atf_test_case alarm_sensor cleanup
alarm_sensor_head() {
common_head "Test a sensor with internal checking"
}
alarm_sensor_body() {
common_body 2 40 20 6 3
}
alarm_sensor_cleanup() {
common_cleanup
}
atf_test_case entropy_polled_sensor cleanup
entropy_polled_sensor_head() {
common_head "Test a simple sensor that provides entropy"
}
entropy_polled_sensor_body() {
common_body 0 50 30 10 1 8192
}
entropy_polled_sensor_cleanup() {
common_cleanup
}
atf_test_case entropy_interrupt_sensor cleanup
entropy_interrupt_sensor_head() {
common_head "Test a sensor that provides entropy without polling"
}
entropy_interrupt_sensor_body() {
common_body 0 50 30 10 1 10240
}
entropy_interrupt_sensor_cleanup() {
common_cleanup
}
atf_init_test_cases() {
RUMP_SERVER="unix://t_swsensor_socket" ; export RUMP_SERVER
atf_add_test_case simple_sensor
atf_add_test_case limit_sensor
atf_add_test_case alarm_sensor
atf_add_test_case entropy_polled_sensor
atf_add_test_case entropy_interrupt_sensor
}