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#!/usr/bin/env bash
# Copyright (C) 2018 Red Hat, Inc. All rights reserved.
#
# This copyrighted material is made available to anyone wishing to use,
# modify, copy, or redistribute it subject to the terms and conditions
# of the GNU General Public License v.2.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
# Test secure table is not leaking data in user land
SKIP_WITH_LVMPOLLD=1
SKIP_WITH_LVMLOCKD=1
# AES key matching rot13 string from dmsecuretest.c */
SECURE="434e0cbab02ca68ffba9268222c3789d703fe62427b78b308518b3228f6a2122"
. lib/inittest
DMTEST="${PREFIX}-test-secure"
# Test needs installed gdb package with gcore app
which gcore || skip
aux driver_at_least 4 6 || skip
# ensure we can create devices (uses dmsetup, etc)
aux prepare_devs 1
# check both code versions - linked libdm and internal device_mapper version
# there should not be any difference
for i in securetest dmsecuretest ; do
# 1st. try with empty table
# 2nd. retry with already exiting DM node - exercize error path also wipes
for j in empty existing ; do
"$i" "$dev1" "$DMTEST" >cmdout 2>&1 &
PID=$!
sleep .5
# crypt device should be loaded
dmsetup status "$DMTEST"
# generate core file for running&sleeping binary
gcore "$PID" | tee out || skip
# check we capture core while dmsecuretest was already sleeping
grep "nanosleep" out || grep kernel_vsyscall out
kill "$PID" || true
wait
cat cmdout
# $SECURE string must NOT be present in core file
not grep "$SECURE" "core.$PID" || {
## cp "core.$PID" /dev/shm/core
rm -f "core.$PID"
should dmsetup remove "$DMTEST" # go around weird bugs
die "!!! Secure string $SECURE found present in core.$PID !!!"
}
rm -f "core.$PID"
if test "$j" = empty ; then
not grep "Device or resource busy" cmdout
else
# Device should be already present resulting into error message
grep "Device or resource busy" cmdout
dmsetup remove "$DMTEST"
fi
done
done
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