290 lines
8.5 KiB
Bash
290 lines
8.5 KiB
Bash
#!/bin/bash
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# helpers for btrfs-convert tests
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# how many files to create.
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DATASET_SIZE=50
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generate_dataset() {
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dataset_type="$1"
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dirpath=$TEST_MNT/$dataset_type
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run_check $SUDO_HELPER mkdir -p $dirpath
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case $dataset_type in
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small)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
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count=1 >/dev/null 2>&1
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done
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;;
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hardlink)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
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run_check $SUDO_HELPER ln $dirpath/$dataset_type.$num $dirpath/hlink.$num
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done
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;;
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fast_symlink)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
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run_check cd $dirpath && $SUDO_HELPER ln -s $dataset_type.$num $dirpath/slink.$num && cd /
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done
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;;
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brokenlink)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/blink.$num
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done
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;;
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perm)
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for modes in 777 775 755 750 700 666 664 644 640 600 444 440 400 000 \
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1777 1775 1755 1750 1700 1666 1664 1644 1640 1600 1444 1440 1400 1000 \
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2777 2775 2755 2750 2700 2666 2664 2644 2640 2600 2444 2440 2400 2000 \
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4777 4775 4755 4750 4700 4666 4664 4644 4640 4600 4444 4440 4400 4000; do
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if [[ "$modes" == *9* ]] || [[ "$modes" == *8* ]]
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then
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continue;
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else
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run_check $SUDO_HELPER touch $dirpath/$dataset_type.$modes
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run_check $SUDO_HELPER chmod $modes $dirpath/$dataset_type.$modes
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fi
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done
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;;
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sparse)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
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count=1 >/dev/null 2>&1
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run_check $SUDO_HELPER truncate -s 500K $dirpath/$dataset_type.$num
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run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
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oflag=append conv=notrunc count=1 >/dev/null 2>&1
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run_check $SUDO_HELPER truncate -s 800K $dirpath/$dataset_type.$num
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done
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;;
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acls)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
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run_check $SUDO_HELPER setfacl -m "u:root:x" $dirpath/$dataset_type.$num
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run_check $SUDO_HELPER setfattr -n user.foo -v bar$num $dirpath/$dataset_type.$num
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done
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;;
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fifo)
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER mkfifo $dirpath/$dataset_type.$num
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done
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;;
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slow_symlink)
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long_filename=`date +%s | sha256sum | cut -f1 -d'-'`
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run_check $SUDO_HELPER touch $dirpath/$long_filename
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for num in $(seq 1 $DATASET_SIZE); do
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run_check $SUDO_HELPER ln -s $dirpath/$long_filename $dirpath/slow_slink.$num
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done
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;;
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esac
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}
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populate_fs() {
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for dataset_type in 'small' 'hardlink' 'fast_symlink' 'brokenlink' 'perm' 'sparse' 'acls' 'fifo' 'slow_symlink'; do
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generate_dataset "$dataset_type"
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done
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}
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# verbose message before the test, same arguments as convert_test
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convert_test_preamble() {
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local features
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local msg
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features="$1"
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msg="$2"
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shift 3
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echo " [TEST/conv] $msg, btrfs" "${features:-defaults}"
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echo "creating ext image with: $@" >> $RESULTS
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}
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# prepare TEST_DEV before conversion, create filesystem and mount it, image
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# size is 512MB
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# $@: free form, command to create the filesystem, with appended -F
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convert_test_prep_fs() {
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# TEST_DEV not removed as the file might have special permissions, eg.
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# when test image is on NFS and would not be writable for root
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run_check truncate -s 0 $TEST_DEV
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# 256MB is the smallest acceptable btrfs image.
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run_check truncate -s 512M $TEST_DEV
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run_check "$@" -F $TEST_DEV
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# create a file to check btrfs-convert can convert regular file correct
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run_check_mount_test_dev
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# create a file inside the fs before convert, to make sure there is
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# data covering btrfs backup superblock range (64M)
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run_check $SUDO_HELPER dd if=/dev/zero bs=1M count=64 \
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of=$TEST_MNT/convert_space_holder
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}
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# generate md5 checksums of files on $TEST_MNT
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# $1: path where the checksums will be stored
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convert_test_gen_checksums() {
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local CHECKSUMTMP
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CHECKSUMTMP="$1"
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run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
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count=1 >/dev/null 2>&1
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run_check_stdout $SUDO_HELPER find $TEST_MNT -type f ! -name 'image' -exec md5sum {} \+ > "$CHECKSUMTMP"
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}
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# list $TEST_MNT data set file permissions.
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# $1: path where the permissions will be stored
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convert_test_perm() {
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local PERMTMP
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PERMTMP="$1"
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FILES_LIST=$(mktemp --tmpdir btrfs-progs-convert.fileslistXXXXXX)
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run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
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count=1 >/dev/null 2>&1
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run_check_stdout $SUDO_HELPER find $TEST_MNT -type f ! -name 'image' -fprint $FILES_LIST
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# Fix directory entries order
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sort $FILES_LIST -o $FILES_LIST
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for file in `cat $FILES_LIST` ;do
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run_check_stdout $SUDO_HELPER getfacl --absolute-names $file >> "$PERMTMP"
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done
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rm -- $FILES_LIST
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}
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# list acls of files on $TEST_MNT
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# $1: path where the acls will be stored
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convert_test_acl() {
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local ACLSTMP
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ACLTMP="$1"
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FILES_LIST=$(mktemp --tmpdir btrfs-progs-convert.fileslistXXXXXX)
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run_check_stdout $SUDO_HELPER find $TEST_MNT/acls -type f -fprint $FILES_LIST
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# Fix directory entries order
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sort $FILES_LIST -o $FILES_LIST
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for file in `cat $FILES_LIST`;do
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run_check_stdout $SUDO_HELPER getfattr --absolute-names -d $file >> "$ACLTMP"
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done
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rm -- $FILES_LIST
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}
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# do conversion with given features and nodesize, fsck afterwards
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# $1: features, argument of -O, can be empty
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# $2: nodesize, argument of -N, can be empty
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convert_test_do_convert() {
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run_check $TOP/btrfs-convert ${1:+-O "$1"} ${2:+-N "$2"} $TEST_DEV
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run_check $TOP/btrfs check $TEST_DEV
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run_check $TOP/btrfs inspect-internal dump-super -Ffa $TEST_DEV
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}
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# post conversion check, verify file permissions.
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# $1: file with ext permissions.
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convert_test_post_check_permissions() {
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local EXT_PERMTMP
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local BTRFS_PERMTMP
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EXT_PERMTMP="$1"
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BTRFS_PERMTMP=$(mktemp --tmpdir btrfs-progs-convert.permXXXXXX)
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convert_test_perm "$BTRFS_PERMTMP"
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btrfs_perm=`md5sum $BTRFS_PERMTMP | cut -f1 -d' '`
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ext_perm=`md5sum $EXT_PERMTMP | cut -f1 -d' '`
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if [ "$btrfs_perm" != "$ext_perm" ];
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then
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btrfs_perm_file=`md5sum $BTRFS_PERMTMP | cut -f2 -d' '`
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ext_perm_file=`md5sum $EXT_PERMTMP | cut -f2 -d' '`
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_fail "file permission failed. Mismatched BTRFS:$btrfs_perm_file:$btrfs_perm EXT:$ext_perm_file:$ext_perm"
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fi
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rm -- $BTRFS_PERMTMP
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}
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# post conversion check, compare BTRFS file acls against EXT.
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# $1: file with ext acls.
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convert_test_post_check_acl() {
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local EXT_ACLTMP
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local BTRFS_ACLTMP
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EXT_ACLTMP="$1"
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BTRFS_ACLTMP=$(mktemp --tmpdir btrfs-progs-convert.aclsXXXXXXX)
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convert_test_acl "$BTRFS_ACLTMP"
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btrfs_acl=`md5sum $BTRFS_ACLTMP | cut -f1 -d' '`
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ext_acl=`md5sum $EXT_ACLTMP | cut -f1 -d' '`
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if [ "$btrfs_acl" != "$ext_acl" ]
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then
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btrfs_acl_file=`md5sum $BTRFS_ACLTMP | cut -f2 -d' '`
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ext_acl_file=`md5sum $EXT_ACLTMP | cut -f2 -d' '`
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_fail "file acl failed. Mismatched BTRFS:$btrfs_acl_file:$btrfs_acl EXT:$ext_acl_file:$ext_acl"
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fi
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rm -- $BTRFS_ACLTMP
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}
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# post conversion checks, verify md5sums
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# $1: file with checksums
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# $2: file with permissions.
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# $3: file with acl entries.
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convert_test_post_check() {
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local CHECKSUMTMP
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local EXT_PERMTMP
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local EXT_ACLTMP
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CHECKSUMTMP="$1"
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EXT_PERMTMP="$2"
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EXT_ACLTMP="$3"
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run_check_mount_test_dev
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run_check_stdout $SUDO_HELPER md5sum -c "$CHECKSUMTMP" |
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grep -q 'FAILED' && _fail "file validation failed"
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convert_test_post_check_permissions "$EXT_PERMTMP"
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convert_test_post_check_acl "$EXT_ACLTMP"
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run_check_umount_test_dev
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}
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# do rollback and fsck
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convert_test_post_rollback() {
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run_check $TOP/btrfs-convert --rollback $TEST_DEV
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run_check fsck -n -t ext2,ext3,ext4 $TEST_DEV
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}
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# simple wrapper for a convert test
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# $1: btrfs features, argument to -O
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# $2: description of the test "ext2 8k nodesize"
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# $3: nodesize value
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# $4 + rest: command to create the ext2 image
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convert_test() {
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local features
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local nodesize
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local msg
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local CHECKSUMTMP
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local EXT_PERMTMP
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local EXT_ACLTMP
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features="$1"
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msg="$2"
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nodesize="$3"
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shift 3
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convert_test_preamble "$features" "$msg" "$nodesize" "$@"
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convert_test_prep_fs "$@"
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populate_fs
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CHECKSUMTMP=$(mktemp --tmpdir btrfs-progs-convert.XXXXXXXXXX)
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EXT_PERMTMP=$(mktemp --tmpdir btrfs-progs-convert.permXXXXXX)
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EXT_ACLTMP=$(mktemp --tmpdir btrfs-progs-convert.aclsXXXXXXX)
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convert_test_gen_checksums "$CHECKSUMTMP"
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convert_test_perm "$EXT_PERMTMP"
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convert_test_acl "$EXT_ACLTMP"
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run_check_umount_test_dev
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convert_test_do_convert "$features" "$nodesize"
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convert_test_post_check "$CHECKSUMTMP" "$EXT_PERMTMP" "$EXT_ACLTMP"
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rm $CHECKSUMTMP
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rm $EXT_PERMTMP
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rm $EXT_ACLTMP
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convert_test_post_rollback
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}
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