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Add new test cases for entropy-providing sensors

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This commit is contained in:
pgoyette 2012-07-19 13:36:18 +00:00
parent 840097bfdf
commit 198966cae9
1 changed files with 165 additions and 69 deletions
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234
tests/dev/sysmon/t_swsensor.sh
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@ -1,4 +1,4 @@
# $NetBSD: t_swsensor.sh,v 1.4 2010/12/31 00:35:42 pgoyette Exp $
# $NetBSD: t_swsensor.sh,v 1.5 2012/07/19 13:36:18 pgoyette Exp $
get_sensor_info() {
rump.envstat -x | \
@ -13,6 +13,14 @@ 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" )
@ -40,7 +48,7 @@ check_powerd_event() {
# requested properties
start_rump() {
rump_server -l rumpvfs -l rumpdev -l rumpdev_sysmon ${RUMP_SERVER}
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
@ -55,7 +63,8 @@ common_head() {
atf_set timeout 60
atf_set require.progs rump.powerd rump.envstat rump.modload \
rump.halt rump.sysctl rump_server \
sed grep
sed grep awk \
rndctl expr
}
common_cleanup() {
@ -87,10 +96,12 @@ ENV2
# $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
start_rump "-i mode=$1 -i value=$2 -i limit=$3"
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
@ -173,81 +184,138 @@ common_body() {
fi
# Step 7 - verify that we can set our own limit
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
# 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"
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 "11a: ${evt}"
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 12 - make sure we can set new limits once more
rump.envstat -c env2.conf
if [ $( get_sensor_key critical-min ) -ne $3 ] ; then
atf_fail "12a: Limit not reset to same value"
# Step 13 - confirm registration (or lack thereof) with rndctl
rnd_bits=$( 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
rump.envstat -c env1.conf
if [ $( get_sensor_key critical-min ) -ne $(( $3 - $4 )) ] ; then
atf_fail "12b: Limit not reset to new value"
# 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 $rnd_bits ] ; then
atf_fail "14a: entropy bits did not increase after polling"
fi
rnd_bits=$new_rnd_bits
sleep 5
new_rnd_bits=$( get_rnd_bits_count )
if [ $new_rnd_bits -gt $rnd_bits ] ; then
atf_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 $rnd_bits ] ; then
atf_fail "15a: entropy bits did not increase after interrogation"
fi
rnd_bits=$new_rnd_bits
get_sensor_key cur-value
new_rnd_bits=$( get_rnd_bits_count )
if [ $new_rnd_bits -gt $rnd_bits ] ; then
atf_fail "15b: entropy bits increased after interrogation with no value change"
fi
}
@ -290,9 +358,37 @@ 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
}