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#!/bin/bash
#
# convert ext2/3/4 images to btrfs images, and make sure the results are
# clean.
#
unset TOP
unset LANG
LANG=C
SCRIPT_DIR=$(dirname $(readlink -f $0))
TOP=$(readlink -f $SCRIPT_DIR/../)
RESULTS="$TOP/tests/convert-tests-results.txt"
# how many files to create.
DATASET_SIZE=50
source $TOP/tests/common
rm -f $RESULTS
setup_root_helper
prepare_test_dev 512M
CHECKSUMTMP=$(mktemp --tmpdir btrfs-progs-convert.XXXXXXXXXX)
generate_dataset() {
dataset_type="$1"
dirpath=$TEST_MNT/$dataset_type
run_check $SUDO_HELPER mkdir -p $dirpath
case $dataset_type in
small)
for num in $(seq 1 $DATASET_SIZE); do
run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
count=1 >/dev/null 2>&1
done
;;
hardlink)
for num in $(seq 1 $DATASET_SIZE); do
run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
run_check $SUDO_HELPER ln $dirpath/$dataset_type.$num $dirpath/hlink.$num
done
;;
symlink)
for num in $(seq 1 $DATASET_SIZE); do
run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/slink.$num
done
;;
brokenlink)
for num in $(seq 1 $DATASET_SIZE); do
run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/blink.$num
done
;;
perm)
for modes in $(seq 1 7777); do
if [[ "$modes" == *9* ]] || [[ "$modes" == *8* ]]
then
continue;
else
run_check $SUDO_HELPER touch $dirpath/$dataset_type.$modes
run_check $SUDO_HELPER chmod $modes $dirpath/$dataset_type.$modes
fi
done
;;
sparse)
for num in $(seq 1 $DATASET_SIZE); do
run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
count=1 >/dev/null 2>&1
run_check $SUDO_HELPER truncate -s 500K $dirpath/$dataset_type.$num
run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
oflag=append conv=notrunc count=1 >/dev/null 2>&1
run_check $SUDO_HELPER truncate -s 800K $dirpath/$dataset_type.$num
done
;;
acls)
for num in $(seq 1 $DATASET_SIZE); do
run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
run_check $SUDO_HELPER setfacl -m "u:root:x" $dirpath/$dataset_type.$num
run_check $SUDO_HELPER setfattr -n user.foo -v bar$num $dirpath/$dataset_type.$num
done
;;
esac
}
populate_fs() {
for dataset_type in 'small' 'hardlink' 'symlink' 'brokenlink' 'perm' 'sparse' 'acls'; do
generate_dataset "$dataset_type"
done
}
convert_test() {
local features
local nodesize
features="$1"
shift
if [ -z "$features" ]; then
echo " [TEST/conv] $1, btrfs defaults"
else
echo " [TEST/conv] $1, btrfs $features"
fi
nodesize=$2
shift 2
echo "creating ext image with: $*" >> $RESULTS
# TEST_DEV not removed as the file might have special permissions, eg.
# when test image is on NFS and would not be writable for root
run_check truncate -s 0 $TEST_DEV
# 256MB is the smallest acceptable btrfs image.
run_check truncate -s 512M $TEST_DEV
run_check $* -F $TEST_DEV
# create a file to check btrfs-convert can convert regular file
# correct
run_check_mount_test_dev
populate_fs
run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
count=1 >/dev/null 2>&1
run_check_stdout find $TEST_MNT -type f ! -name 'image' -exec md5sum {} \+ > $CHECKSUMTMP
run_check_umount_test_dev
run_check $TOP/btrfs-convert ${features:+-O "$features"} -N "$nodesize" $TEST_DEV
run_check $TOP/btrfs check $TEST_DEV
run_check $TOP/btrfs-show-super $TEST_DEV
run_check_mount_test_dev
run_check_stdout md5sum -c $CHECKSUMTMP |
grep -q 'FAILED' && _fail "file validation failed."
run_check_umount_test_dev
}
if ! [ -z "$TEST" ]; then
echo " [TEST/conv] skipped all convert tests, TEST=$TEST"
exit 0
fi
for feature in '' 'extref' 'skinny-metadata' 'no-holes'; do
convert_test "$feature" "ext2 4k nodesize" 4096 mke2fs -b 4096
convert_test "$feature" "ext3 4k nodesize" 4096 mke2fs -j -b 4096
convert_test "$feature" "ext4 4k nodesize" 4096 mke2fs -t ext4 -b 4096
convert_test "$feature" "ext2 8k nodesize" 8192 mke2fs -b 4096
convert_test "$feature" "ext3 8k nodesize" 8192 mke2fs -j -b 4096
convert_test "$feature" "ext4 8k nodesize" 8192 mke2fs -t ext4 -b 4096
convert_test "$feature" "ext2 16k nodesize" 16384 mke2fs -b 4096
convert_test "$feature" "ext3 16k nodesize" 16384 mke2fs -j -b 4096
convert_test "$feature" "ext4 16k nodesize" 16384 mke2fs -t ext4 -b 4096
convert_test "$feature" "ext2 32k nodesize" 32768 mke2fs -b 4096
convert_test "$feature" "ext3 32k nodesize" 32768 mke2fs -j -b 4096
convert_test "$feature" "ext4 32k nodesize" 32768 mke2fs -t ext4 -b 4096
convert_test "$feature" "ext2 64k nodesize" 65536 mke2fs -b 4096
convert_test "$feature" "ext3 64k nodesize" 65536 mke2fs -j -b 4096
convert_test "$feature" "ext4 64k nodesize" 65536 mke2fs -t ext4 -b 4096
done
rm $CHECKSUMTMP
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