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#  Unit test for the ion.
#
# Invoked by run.sh
# This will run nominal and adversarial testcases.

chmod 755 msm_iontest

[ -d /system/lib/modules ] && modpath=/system/lib/modules
[ -d /kernel-tests/modules/lib/modules/$(uname -r 2>/dev/null)/extra ] && modpath=/kernel-tests/modules/lib/modules/$(uname -r)/extra
[ -d /usr/kernel-tests/ion ] && modpath=/usr/kernel-tests/ion

if [[ -z "$modpath" ]]; then
	echo "Couldn't find a path to the kernel module. Bailing."
	exit 1
fi

ion_test_mod=${modpath}/msm_ion_test_mod.ko
ion_dev=/dev/ion
ion_dev_misc=/sys/class/misc/ion/dev
ion_test_dev=/dev/msm_ion_test
ion_test_dev_sys=/sys/class/msm_ion_test/msm_ion_test/dev
test_type=n
level=0
legacy_secure=0

maybe_make_node()
{
	thedev=$1
	themisc=$2
	[[ -e $thedev ]] && return
	type cut >/dev/null && have_cut=yes
	type awk >/dev/null && have_awk=yes
	type sed >/dev/null && have_sed=yes
	type grep >/dev/null && have_grep=yes
	if [[ $have_cut = yes ]]; then
		mknod $thedev c $(cut -d: -f1 $themisc) $(cut -d: -f2 $themisc)
	elif [[ $have_awk = yes ]]; then
		mknod $thedev c $(awk -F: '{print $1}' $themisc) $(awk -F: '{print $2}' $themisc)
	elif [[ $have_sed = yes ]]; then
		mknod $thedev c $(sed 's/\([[:digit:]]\+\):.*/\1/' $themisc) $(sed 's/.*:\([[:digit:]]\+\)/\2/' $themisc)
	elif [[ $have_grep = yes ]]; then
		# we don't have sed, awk, or cut. this is going to get
		# ugly. Use repeated applications of grep's `-o' option to
		# trim things out.
		mknod $thedev c $(grep -Eoh '[[:digit:]]+:' $themisc | grep -Eoh '[[:digit:]]') $(grep -Eoh ':[[:digit:]]+' $themisc | grep -Eoh '[[:digit:]]')
	else
		echo "Can't create $thedev because we don't have cut, sed, awk, grep"
		echo "or a magnetized needle and a steady heand."
		return 1
	fi
	return 0
}

for i in $*
do
	case $i in
	-n | --nominal)
	# already nominal test case by default
	;;
	-a | --adversarial)
		test_type=a
		;;
	-V)
		level=1
		;;
	-l | --legacy)
		legacy_secure=1
		;;
	-h | --help | *)
	echo "Usage: $0 [-n | --nominal] [-a | --adversarial] [-V] [-l | --legacy]";
	exit 1
	;;
	esac
done

# create ion device if it doesn't exist
maybe_make_node $ion_dev $ion_dev_misc || exit 1

if [ ! -e $ion_test_mod ]; then
	echo "ERROR: Kernel Test Module not present"
	exit 1
fi

# insert msm_ion_test_module if needed
if [ ! -e $ion_test_dev_sys ]; then
	insmod $ion_test_mod

	if [ $? -ne 0 ]; then
		echo "ERROR: failed to load module $ion_test_mod"
	exit 1
	fi
fi

# create the ion test device if it doesn't exist
maybe_make_node $ion_test_dev $ion_test_dev_sys || exit 1


#invoke test
./msm_iontest $test_type $level $legacy_secure
ret=$?
if [ $ret -ne 0 ];then
	echo "Test Failed"
else
	echo "Test Passed"
fi
rmmod msm_ion_test_module
exit $ret