tests/common.convert

   1 #!/bin/bash
   2 # helpers for btrfs-convert tests
   3
   4 # how many files to create.
   5 DATASET_SIZE=50
   6
   7 generate_dataset() {
   8
   9         dataset_type="$1"
  10         dirpath=$TEST_MNT/$dataset_type
  11         run_check $SUDO_HELPER mkdir -p $dirpath
  12
  13         case $dataset_type in
  14                 small)
  15                         for num in $(seq 1 $DATASET_SIZE); do
  16                                 run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
  17                                 count=1 >/dev/null 2>&1
  18                         done
  19                         ;;
  20
  21                 hardlink)
  22                         for num in $(seq 1 $DATASET_SIZE); do
  23                                 run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
  24                                 run_check $SUDO_HELPER ln $dirpath/$dataset_type.$num $dirpath/hlink.$num
  25                         done
  26                         ;;
  27
  28                 symlink)
  29                         for num in $(seq 1 $DATASET_SIZE); do
  30                                 run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
  31                                 run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/slink.$num
  32                         done
  33                         ;;
  34
  35                 brokenlink)
  36                         for num in $(seq 1 $DATASET_SIZE); do
  37                                 run_check $SUDO_HELPER ln -s $dirpath/$dataset_type.$num $dirpath/blink.$num
  38                         done
  39                         ;;
  40
  41                 perm)
  42                         for modes in 777 775 755 750 700 666 664 644 640 600 444 440 400 000            \
  43                                 1777 1775 1755 1750 1700 1666 1664 1644 1640 1600 1444 1440 1400 1000   \
  44                                 2777 2775 2755 2750 2700 2666 2664 2644 2640 2600 2444 2440 2400 2000   \
  45                                 4777 4775 4755 4750 4700 4666 4664 4644 4640 4600 4444 4440 4400 4000; do
  46                                 if [[ "$modes" == *9* ]] || [[ "$modes" == *8* ]]
  47                                 then
  48                                         continue;
  49                                 else
  50                                         run_check $SUDO_HELPER touch $dirpath/$dataset_type.$modes
  51                                         run_check $SUDO_HELPER chmod $modes $dirpath/$dataset_type.$modes
  52                                 fi
  53                         done
  54                         ;;
  55
  56                 sparse)
  57                         for num in $(seq 1 $DATASET_SIZE); do
  58                                 run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
  59                                 count=1 >/dev/null 2>&1
  60                                 run_check $SUDO_HELPER truncate -s 500K $dirpath/$dataset_type.$num
  61                                 run_check $SUDO_HELPER dd if=/dev/urandom of=$dirpath/$dataset_type.$num bs=10K \
  62                                 oflag=append conv=notrunc count=1 >/dev/null 2>&1
  63                                 run_check $SUDO_HELPER truncate -s 800K $dirpath/$dataset_type.$num
  64                         done
  65                         ;;
  66
  67                 acls)
  68                         for num in $(seq 1 $DATASET_SIZE); do
  69                                 run_check $SUDO_HELPER touch $dirpath/$dataset_type.$num
  70                                 run_check $SUDO_HELPER setfacl -m "u:root:x" $dirpath/$dataset_type.$num
  71                                 run_check $SUDO_HELPER setfattr -n user.foo -v bar$num $dirpath/$dataset_type.$num
  72                         done
  73                         ;;
  74         esac
  75 }
  76
  77 populate_fs() {
  78
  79         for dataset_type in 'small' 'hardlink' 'symlink' 'brokenlink' 'perm' 'sparse' 'acls'; do
  80                 generate_dataset "$dataset_type"
  81         done
  82 }
  83
  84 # verbose message before the test, same arguments as convert_test
  85 convert_test_preamble() {
  86         local features
  87         local msg
  88
  89         features="$1"
  90         msg="$2"
  91         shift 3
  92         echo "    [TEST/conv]     $msg, btrfs" "${features:-defaults}"
  93         echo "creating ext image with: $@" >> $RESULTS
  94 }
  95
  96 #  prepare TEST_DEV before conversion, create filesystem and mount it, image
  97 #  size is 512MB
  98 #  $@: free form, command to create the filesystem, with appended -F
  99 convert_test_prep_fs() {
 100         # TEST_DEV not removed as the file might have special permissions, eg.
 101         # when test image is on NFS and would not be writable for root
 102         run_check truncate -s 0 $TEST_DEV
 103         # 256MB is the smallest acceptable btrfs image.
 104         run_check truncate -s 512M $TEST_DEV
 105         run_check "$@" -F $TEST_DEV
 106
 107         # create a file to check btrfs-convert can convert regular file correct
 108         run_check_mount_test_dev
 109
 110         # create a file inside the fs before convert, to make sure there is
 111         # data covering btrfs backup superblock range (64M)
 112         run_check $SUDO_HELPER dd if=/dev/zero bs=1M count=64 \
 113                 of=$TEST_MNT/convert_space_holder
 114 }
 115
 116 # generate md5 checksums of files on $TEST_MNT
 117 # $1: path where the checksums will be stored
 118 convert_test_gen_checksums() {
 119         local CHECKSUMTMP
 120         CHECKSUMTMP="$1"
 121
 122         run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
 123                 count=1 >/dev/null 2>&1
 124         run_check_stdout $SUDO_HELPER find $TEST_MNT -type f ! -name 'image' -exec md5sum {} \+ > "$CHECKSUMTMP"
 125 }
 126 # list $TEST_MNT data set file permissions.
 127 # $1: path where the permissions will be stored
 128 convert_test_perm() {
 129         local PERMTMP
 130         PERMTMP="$1"
 131         FILES_LIST=$(mktemp --tmpdir btrfs-progs-convert.fileslistXXXXXX)
 132
 133         run_check $SUDO_HELPER dd if=/dev/zero of=$TEST_MNT/test bs=$nodesize \
 134                 count=1 >/dev/null 2>&1
 135         run_check_stdout $SUDO_HELPER find $TEST_MNT -type f ! -name 'image' -fprint $FILES_LIST
 136         # Fix directory entries order
 137         sort $FILES_LIST -o $FILES_LIST
 138         for file in `cat $FILES_LIST` ;do
 139                 run_check_stdout $SUDO_HELPER getfacl --absolute-names $file >> "$PERMTMP"
 140         done
 141         rm -- $FILES_LIST
 142 }
 143 # list acls of files on $TEST_MNT
 144 # $1: path where the acls will be stored
 145 convert_test_acl() {
 146         local ACLSTMP
 147         ACLTMP="$1"
 148         FILES_LIST=$(mktemp --tmpdir btrfs-progs-convert.fileslistXXXXXX)
 149
 150         run_check_stdout $SUDO_HELPER find $TEST_MNT/acls -type f -fprint $FILES_LIST
 151         # Fix directory entries order
 152         sort $FILES_LIST -o $FILES_LIST
 153         for file in `cat $FILES_LIST`;do
 154                 run_check_stdout $SUDO_HELPER getfattr --absolute-names -d $file >> "$ACLTMP"
 155         done
 156         rm -- $FILES_LIST
 157 }
 158
 159 # do conversion with given features and nodesize, fsck afterwards
 160 # $1: features, argument of -O, can be empty
 161 # $2: nodesize, argument of -N, can be empty
 162 convert_test_do_convert() {
 163         run_check $TOP/btrfs-convert ${1:+-O "$1"} ${2:+-N "$2"} $TEST_DEV
 164         run_check $TOP/btrfs check $TEST_DEV
 165         run_check $TOP/btrfs-show-super -Ffa $TEST_DEV
 166 }
 167
 168 # post conversion check, verify file permissions.
 169 # $1: file with ext permissions.
 170 convert_test_post_check_permissions() {
 171         local EXT_PERMTMP
 172         local BTRFS_PERMTMP
 173
 174         EXT_PERMTMP="$1"
 175         BTRFS_PERMTMP=$(mktemp --tmpdir btrfs-progs-convert.permXXXXXX)
 176         convert_test_perm "$BTRFS_PERMTMP"
 177
 178         btrfs_perm=`md5sum $BTRFS_PERMTMP | cut -f1 -d' '`
 179         ext_perm=`md5sum $EXT_PERMTMP | cut -f1 -d' '`
 180
 181         if [ "$btrfs_perm" != "$ext_perm" ];
 182         then
 183                 btrfs_perm_file=`md5sum $BTRFS_PERMTMP | cut -f2 -d' '`
 184                 ext_perm_file=`md5sum $EXT_PERMTMP | cut -f2 -d' '`
 185                 _fail "file permission failed. Mismatched BTRFS:$btrfs_perm_file:$btrfs_perm EXT:$ext_perm_file:$ext_perm"
 186         fi
 187
 188         rm -- $BTRFS_PERMTMP
 189 }
 190 # post conversion check, compare BTRFS file acls against EXT.
 191 # $1: file with ext acls.
 192 convert_test_post_check_acl() {
 193         local EXT_ACLTMP
 194         local BTRFS_ACLTMP
 195
 196         EXT_ACLTMP="$1"
 197         BTRFS_ACLTMP=$(mktemp --tmpdir btrfs-progs-convert.aclsXXXXXXX)
 198         convert_test_acl "$BTRFS_ACLTMP"
 199
 200         btrfs_acl=`md5sum $BTRFS_ACLTMP | cut -f1 -d' '`
 201         ext_acl=`md5sum $EXT_ACLTMP | cut -f1 -d' '`
 202
 203         if [ "$btrfs_acl" != "$ext_acl" ]
 204         then
 205                 btrfs_acl_file=`md5sum $BTRFS_ACLTMP | cut -f2 -d' '`
 206                 ext_acl_file=`md5sum $EXT_ACLTMP | cut -f2 -d' '`
 207                 _fail "file acl failed. Mismatched BTRFS:$btrfs_acl_file:$btrfs_acl EXT:$ext_acl_file:$ext_acl"
 208         fi
 209
 210         rm -- $BTRFS_ACLTMP
 211 }
 212 # post conversion checks, verify md5sums
 213 # $1: file with checksums
 214 # $2: file with permissions.
 215 # $3: file with acl entries.
 216 convert_test_post_check() {
 217         local CHECKSUMTMP
 218         local EXT_PERMTMP
 219         local EXT_ACLTMP
 220
 221         CHECKSUMTMP="$1"
 222         EXT_PERMTMP="$2"
 223         EXT_ACLTMP="$3"
 224
 225         run_check_mount_test_dev
 226         run_check_stdout $SUDO_HELPER md5sum -c "$CHECKSUMTMP" |
 227                 grep -q 'FAILED' && _fail "file validation failed"
 228         convert_test_post_check_permissions "$EXT_PERMTMP"
 229         convert_test_post_check_acl "$EXT_ACLTMP"
 230         run_check_umount_test_dev
 231 }
 232
 233 # do rollback and fsck
 234 convert_test_post_rollback() {
 235         run_check $TOP/btrfs-convert --rollback $TEST_DEV
 236         run_check fsck -n -t ext2,ext3,ext4 $TEST_DEV
 237 }
 238
 239 # simple wrapper for a convert test
 240 # $1: btrfs features, argument to -O
 241 # $2: description of the test "ext2 8k nodesize"
 242 # $3: nodesize value
 243 # $4 + rest: command to create the ext2 image
 244 convert_test() {
 245         local features
 246         local nodesize
 247         local msg
 248         local CHECKSUMTMP
 249         local EXT_PERMTMP
 250         local EXT_ACLTMP
 251
 252         features="$1"
 253         msg="$2"
 254         nodesize="$3"
 255         shift 3
 256         convert_test_preamble "$features" "$msg" "$nodesize" "$@"
 257         convert_test_prep_fs "$@"
 258         populate_fs
 259         CHECKSUMTMP=$(mktemp --tmpdir btrfs-progs-convert.XXXXXXXXXX)
 260         EXT_PERMTMP=$(mktemp --tmpdir btrfs-progs-convert.permXXXXXX)
 261         EXT_ACLTMP=$(mktemp --tmpdir btrfs-progs-convert.aclsXXXXXXX)
 262         convert_test_gen_checksums "$CHECKSUMTMP"
 263         convert_test_perm "$EXT_PERMTMP"
 264         convert_test_acl "$EXT_ACLTMP"
 265
 266         run_check_umount_test_dev
 267
 268         convert_test_do_convert "$features" "$nodesize"
 269         convert_test_post_check "$CHECKSUMTMP" "$EXT_PERMTMP" "$EXT_ACLTMP"
 270         rm $CHECKSUMTMP
 271         rm $EXT_PERMTMP
 272         rm $EXT_ACLTMP
 273
 274         convert_test_post_rollback
 275 }