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|
#!/bin/bash
source "test-helpers.sh"
if [ "$1" == "" ]
then
echo "Usage: $0 bad_device"
exit 1
fi
DEVICE="$1"
umount "$DEVICE"
if [ -L "$DEVICE" ]
then
DEVICE=`readlink -f "$DEVICE"`
fi
#*************************************************************************
# These tests depend on a particular device in the possession of the
# dc3dd developers. The reference image for this device has the bad
# sectors replaced by runs of zeros, consistent with dc3dd error recovery.
#*************************************************************************
REF_IMG="../../test_data/reference_images/ref-bad.img"
REF_SECTORS=8015505
REF_SECTOR_SIZE=512
BAD_SECTORS_START=4292779
BAD_SECTORS_COUNT=21
DC3DD="../src/dc3dd"
TEST_IMG="/tmp/test.img"
TEST_LOG="/tmp/test.log"
init()
{
echo "Setting up test fixtures..."
# Make sure device is as expected, i.e, that there are
# BAD_SECTORS_COUNT sectors starting at BAD_SECTORS_START.
echo "Checking device..."
END_SECTOR=`expr $BAD_SECTORS_START + $BAD_SECTORS_COUNT`
for ((i=$BAD_SECTORS_START; i<=$BAD_SECTORS_COUNT; i+=1))
do
"dd" if="$DEVICE" of="/dev/null" iflag=direct bs="$REF_SECTOR_SIZE" skip="$i" count=1
if [ $? -eq 0 ]
then
echo "Expected bad sector $i is good!"
exit 1
fi
done
echo "Getting reference image size..."
REF_IMG_BYTES=`stat -c %s "$REF_IMG"`
echo "Getting reference image md5 hash..."
REF_IMG_MD5_HASH=`md5sum "$REF_IMG" | cut -f 1 -d \ `
echo "Getting reference image sha1 hash..."
REF_IMG_SHA1_HASH=`sha1sum "$REF_IMG" | cut -f 1 -d \ `
echo "Test fixture set up completed"
}
cleanup()
{
# Clean up files from any previous runs.
rm "$TEST_IMG" "$TEST_LOG" "$TEST_IMG".* "$TEST_LOG".*
if [ -e "$TEST_IMG" -o -e "$TEST_LOG" ]
then
echo "Failed to remove test output files"
exit 1
fi
}
check_bad_sectors_logging()
{
#MSGCOUNT=`grep -c "at sector 2228777" "$TEST_LOG"`
#if [ $MSGCOUNT -ne 1 ]
#then
# echo "$1: log is missing or has incorrect single error message"
# exit 1
#fi
MSGCOUNT=`grep -c "from sector 4292779 to sector 4292799" "$TEST_LOG"`
if [ $MSGCOUNT -ne 1 ]
then
echo "$1: log is missing or has incorrect grouped errors message"
exit 1
fi
}
basic()
{
echo "Testing imaging of a device with errors..."
cleanup
"$DC3DD" if="$DEVICE" of="$TEST_IMG" hash=md5 hash=sha1 log="$TEST_LOG"
if [ $? -ne 0 ]
then
echo "basic: run Failed"
exit 1
fi
echo "Checking results..."
check_output_file "basic" "$TEST_IMG" "$REF_IMG_BYTES" "$REF_IMG_MD5_HASH" "$REF_IMG_SHA1_HASH"
check_input_with_errors_logging "basic" "$TEST_LOG" "$REF_SECTOR_SIZE" "(probed)" "$REF_IMG_BYTES" "$REF_SECTORS" "$BAD_SECTORS_COUNT"
check_input_hash_logging "basic" "$TEST_LOG" "$REF_IMG_MD5_HASH" "$REF_IMG_SHA1_HASH"
check_single_output_logging "basic" "$TEST_LOG" "$REF_SECTORS"
check_bad_sectors_logging "basic"
echo "Results ok"
echo
}
split()
{
echo "Testing splitting output when imaging a device with errors..."
cleanup
"$DC3DD" if="$DEVICE" ofs="$TEST_IMG.000" ofsz=128M hash=md5 hash=sha1 log="$TEST_LOG"
if [ $? -ne 0 ]
then
echo "split: run failed"
exit 1
fi
echo "Checking results..."
check_split_output_file "split" "$TEST_IMG" "$REF_IMG_BYTES" "$REF_IMG_MD5_HASH" "$REF_IMG_SHA1_HASH"
check_input_with_errors_logging "split" "$TEST_LOG" "$REF_SECTOR_SIZE" "(probed)" "$REF_IMG_BYTES" "$REF_SECTORS" "$BAD_SECTORS_COUNT"
check_input_hash_logging "split" "$TEST_LOG" "$REF_IMG_MD5_HASH" "$REF_IMG_SHA1_HASH"
check_single_output_logging "split" "$TEST_LOG" "$REF_SECTORS"
check_bad_sectors_logging "split"
echo "Results ok"
echo
}
skip()
{
echo "Testing input skipping on a device with errors..."
cleanup
check_bad_sectors_run
# Test skipping to the bad sectors on a device with errors,
# using max input sectors to create only a partial image.
# Start by creating reference image using dd.
"dd" if="$DEVICE" of="$TEST_IMG" conv=noerror,sync iflag=direct bs="$REF_SECTOR_SIZE" skip=4292778 count=40
if [ $? -ne 0 ]
then
echo "skip: dd run failed"
exit 1
fi
SKIP_REF_BYTES=`stat -c %s "$TEST_IMG"`
SKIP_REF_MD5_HASH=`md5sum "$TEST_IMG" | cut -f 1 -d \ `
SKIP_REF_SHA1_HASH=`sha1sum "$TEST_IMG" | cut -f 1 -d \ `
# Get partial image from bad drive, using buffer size equal to sector size.
"$DC3DD" if="$DEVICE" of="$TEST_IMG" iskip=4292778 cnt=40 hash=md5 hash=sha1 bufsz="$REF_SECTOR_SIZE" log="$TEST_LOG"
if [ $? -ne 0 ]
then
echo "skip:smallbuf: run failed"
exit 1
fi
echo "Checking results..."
check_output_file "skip:smallbuf" "$TEST_IMG" "$SKIP_REF_BYTES" "$SKIP_REF_MD5_HASH" "$SKIP_REF_SHA1_HASH"
check_input_with_errors_logging "skip:smallbuf" "$TEST_LOG" "$REF_SECTOR_SIZE" "(probed)" "$SKIP_REF_BYTES" "40" "$BAD_SECTORS_COUNT"
check_input_hash_logging "skip:smallbuf" "$TEST_LOG" "$SKIP_REF_MD5_HASH" "$SKIP_REF_SHA1_HASH"
check_single_output_logging "skip:smallbuf" "$TEST_LOG" "40"
echo "Results ok"
echo
cleanup
# Get partial image from bad drive, using default buffer size.
"$DC3DD" if="$DEVICE" of="$TEST_IMG" iskip=4292778 cnt=40 hash=md5 hash=sha1 log="$TEST_LOG"
if [ $? -ne 0 ]
then
echo "skip:bigbuf: run failed"
exit 1
fi
echo "Checking results..."
check_output_file "skip:bigbuf" "$TEST_IMG" "$SKIP_REF_BYTES" "$SKIP_REF_MD5_HASH" "$SKIP_REF_SHA1_HASH"
check_input_with_errors_logging "skip:bigbuf" "$TEST_LOG" "$REF_SECTOR_SIZE" "(probed)" "$SKIP_REF_BYTES" "40" "$BAD_SECTORS_COUNT"
check_input_hash_logging "skip:bigbuf" "$TEST_LOG" "$SKIP_REF_MD5_HASH" "$SKIP_REF_SHA1_HASH"
check_single_output_logging "skip:bigbuf" "$TEST_LOG" "40"
echo "Results ok"
echo
cleanup
# Test skipping into the bad sectors on a device with errors,
# using max input sectors to create only a partial image.
# Start by creating reference image using dd.
"dd" if="$DEVICE" of="$TEST_IMG" conv=noerror,sync iflag=direct bs="$REF_SECTOR_SIZE" skip=4292781 count=40
if [ $? -ne 0 ]
then
echo "skip:skipbad dd run failed"
exit 1
fi
SKIP_REF_BYTES=`stat -c %s "$TEST_IMG"`
SKIP_REF_MD5_HASH=`md5sum "$TEST_IMG" | cut -f 1 -d \ `
SKIP_REF_SHA1_HASH=`sha1sum "$TEST_IMG" | cut -f 1 -d \ `
"$DC3DD" if="$DEVICE" of="$TEST_IMG" iskip=4292781 cnt=40 hash=md5 hash=sha1 log="$TEST_LOG"
if [ $? -ne 0 ]
then
echo "skip:skipbad: run failed"
exit 1
fi
echo "Checking results..."
check_output_file "skip:skipbad" "$TEST_IMG" "$SKIP_REF_BYTES" "$SKIP_REF_MD5_HASH" "$SKIP_REF_SHA1_HASH"
check_input_with_errors_logging "skip:skipbad" "$TEST_LOG" "$REF_SECTOR_SIZE" "(probed)" "$SKIP_REF_BYTES" "40" "`expr $BAD_SECTORS_COUNT - 2`"
check_input_hash_logging "skip:skipbad" "$TEST_LOG" "$SKIP_REF_MD5_HASH" "$SKIP_REF_SHA1_HASH"
check_single_output_logging "skip:skipbad" "$TEST_LOG" "40"
echo "Results ok"
echo
}
init
basic
split
skip
cleanup
|
