M7350/qcom-opensource/kernel/kernel-tests/modsign/modsign_test.sh
2024-09-09 08:57:42 +00:00

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# Copyright (c) 2014, The Linux Foundation. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of The Linux Foundation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
# IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
if [ -d /system/lib/modules/ ]; then
modpath=/system/lib/modules
cp $modpath/modsign_test_module.ko /data/modsign_test_module.ko
modpath=/data
elif [ -d /kernel-tests/modules/lib/modules/$(uname -r)/extra ]; then
modpath=/kernel-tests/modules/lib/modules/$(uname -r)/extra
elif [ -d /kernel-tests/modules/lib/modules/$(uname -r)-dirty/extra ]; then
modpath=/kernel-tests/modules/lib/modules/$(uname -r)-dirty/extra
fi
modsign_test_module=${modpath}/modsign_test_module.ko
modsign_test_module_name=modsign_test_module
test_result=1
if [ $# -ne 0 ];then
while [ $# -gt 0 ]
do
case $1 in
-n | --nominal | -r | --repeatability | -a | --adversarial | -s | --stress)
shift 1
;;
-h | --help | *)
echo "Usage: $0 [-n | --nominal] [-r | --repeatability] [-a | --adversarial] [-s | --stress]"
exit 1
;;
esac
done
fi
modsign_test() {
if [ ! -d $modpath ]; then
echo "ERROR: Couldn't find a path to the kernel module."
test_result=1
return;
fi
# remove modsign_test_module before test
lsmod | grep "$modsign_test_module_name"
if [ $? -eq 0 ]; then
rmmod $modsign_test_module > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "ERROR: failed to remove module $modsign_test_module_name"
test_result=1
return;
fi
fi
insmod $modsign_test_module
if [ $? -ne 0 ]; then
echo "ERROR: failed to load module $modsign_test_module_name"
test_result=1
return;
fi
rmmod $modsign_test_module > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "ERROR: failed to remove module $modsign_test_module_name"
test_result=1
return;
fi
sed -i '1s/^/z/' $modsign_test_module
insmod $modsign_test_module
if [ $? -eq 0 ]; then
echo "ERROR: $modsign_test_module_name signed module got loaded even after being modified."
test_result=1
return;
fi
sed -i '1s/.//' $modsign_test_module
insmod $modsign_test_module
if [ $? -ne 0 ]; then
echo "ERROR: failed to load module $modsign_test_module_name"
test_result=1
return;
fi
# remove modsign_test_module after test
rmmod $modsign_test_module > /dev/null 2>&1
if [ $? -ne 0 ]; then
echo "ERROR: failed to remove module $modsign_test_module_name"
test_result=1
return;
fi
test_result=0
return;
}
modsign_test
if [ $? -ne 0 ]; then
exit 1
fi
if [ "$test_result" -eq "0" ]; then
echo "Test passed"
exit 0
else
echo "Test failed"
exit 1
fi