diff options
Diffstat (limited to '')
| -rw-r--r-- | tests/m_rootgnutar/script | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/tests/m_rootgnutar/script b/tests/m_rootgnutar/script new file mode 100644 index 0000000..79fd222 --- /dev/null +++ b/tests/m_rootgnutar/script @@ -0,0 +1,169 @@ +# vim: filetype=sh + +use_mkgnutar= + +test_description="create fs image from GNU tarball" +if ! test -x "$DEBUGFS_EXE"; then + echo "$test_name: $test_description: skipped (no debugfs)" + return 0 +fi +if [ "$(grep -c 'define HAVE_ARCHIVE_H' ../lib/config.h)" -eq 0 ]; then + echo "$test_name: $test_description: skipped (no libarchive)" + exit 0 +fi + +if test -z "$use_mkgnutar" ; then + if type ztar > /dev/null 2>&1 && \ + tar --version 2>&1 | head -1 | grep -q "GNU tar" ; then + TAR=tar + elif type gtar > /dev/null 2>&1 && \ + gtar --version 2>&1 | head -1 | grep -q "GNU tar" ; then + TAR=gtar + else + # if GNU tar is not available, fall back to using mkgnutar.pl + use_mkgnutar=yes +# echo "$test_name: $test_description: skipped (no GNU tar)" +# exit 0 + fi +fi + +MKFS_TAR="$TMPFILE.tar" +MKFS_DIR="$TMPFILE.dir" +OUT="$test_name.log" +EXP="$test_dir/expect" +DEBUGFS_EXE_MTIME=$(perl -e 'print((stat ($ARGV[0]))[9])' "$DEBUGFS_EXE") + +# we put everything in a subdir because we cannot rdump the root as that would +# require permissions to changing ownership of /lost+found +rm -rf "$MKFS_DIR" +mkdir -p "$MKFS_DIR/test" +touch "$MKFS_DIR/test/emptyfile" +dd if=/dev/zero bs=1024 count=32 2> /dev/null | tr '\0' 'a' > "$MKFS_DIR/test/bigfile" +dd if=/dev/zero of="$MKFS_DIR/test/zerofile" bs=1 count=1 seek=1024 2> /dev/null +ln -s /silly_bs_link "$MKFS_DIR/test/silly_bs_link" +mkdir "$MKFS_DIR/test/emptydir" +mkdir "$MKFS_DIR/test/dir" +echo "will be overwritten" > "$MKFS_DIR/test/dir/file" + +if test -z "$use_mkgnutar"; then + # debugfs rdump does not preserve the timestamps when it extracts the + # files so we ignore them by using tar --clamp-mtime + # first write a partial tar + $TAR --sort=name -C "$MKFS_DIR" --mtime="$DEBUGFS_EXE" --clamp-mtime \ + --format=gnu -cf "$MKFS_TAR.dupl" test + # now overwrite the contents of a file + echo "Test me" > "$MKFS_DIR/test/dir/file" + # and update the tar so that it contains two entries for the same file + # we need this to test the code path that first unlinks and then overwrites an + # existing file + $TAR -C "$MKFS_DIR" --mtime="$DEBUGFS_EXE" --clamp-mtime \ + --format=gnu -rf "$MKFS_TAR.dupl" test/dir/file + # also add a duplicate directory entry because those must not be unlinked + echo test | $TAR -C "$MKFS_DIR" --mtime="$DEBUGFS_EXE" --clamp-mtime \ + --format=gnu -rf "$MKFS_TAR.dupl" --no-recursion \ + --verbatim-files-from --files-from=- + # also create a tarball of the directory with only one entry per file + $TAR --sort=name -C "$MKFS_DIR" --mtime="$DEBUGFS_EXE" --clamp-mtime \ + --format=gnu -cf "$MKFS_TAR.uniq" test +else + # same as above but without using GNU tar + perl $test_dir/mkgnutar.pl --nopadding --directory="$MKFS_DIR" --mtime "$DEBUGFS_EXE_MTIME" test > "$MKFS_TAR.dupl" + echo "Test me" > "$MKFS_DIR/test/dir/file" + perl $test_dir/mkgnutar.pl --nopadding --directory="$MKFS_DIR" --mtime "$DEBUGFS_EXE_MTIME" test/dir/file >> "$MKFS_TAR.dupl" + perl $test_dir/mkgnutar.pl --nopadding --directory="$MKFS_DIR" --mtime "$DEBUGFS_EXE_MTIME" --no-recursion test/ >> "$MKFS_TAR.dupl" + # add end-of-archive entry + truncate -s +1024 "$MKFS_TAR.dupl" + # pad to a multiple of the record size + truncate -s %10240 "$MKFS_TAR.dupl" + perl $test_dir/mkgnutar.pl --directory="$MKFS_DIR" --mtime "$DEBUGFS_EXE_MTIME" test > "$MKFS_TAR.uniq" +fi + +rm -r "$MKFS_DIR" + +cat > "$TMPFILE.cmd1" << ENDL +stat /test/emptyfile +stat /test/bigfile +stat /test/zerofile +stat /test/silly_bs_link +stat /test/emptydir +stat /test/dir +stat /test/dir/file +ENDL + +cat > "$TMPFILE.cmd2" << ENDL +ex /test/emptyfile +ex /test/bigfile +ex /test/zerofile +ex /test/silly_bs_link +ex /test/emptydir +ex /test/dir +ex /test/dir/file +ENDL + +# Create two file systems, one for each tar that was created above. The +# tarballs differ but should result in the same filesystem contents +# +for ext in uniq dupl; do + mkdir "$MKFS_DIR" + { + $MKE2FS -q -F -o Linux -T ext4 -O metadata_csum,64bit -E lazy_itable_init=1 -b 1024 -d "$MKFS_TAR.$ext" "$TMPFILE.$ext" 16384 2>&1; + echo Exit status is $?; + $DUMPE2FS "$TMPFILE.$ext" 2>&1; + echo Exit status is $?; + $DEBUGFS -f "$TMPFILE.cmd1" "$TMPFILE.$ext" 2>&1 | grep -E "(stat|Size:|Type:|Links:|Blockcount:)" + echo Exit status is $?; + $DEBUGFS -f "$TMPFILE.cmd2" "$TMPFILE.$ext" 2>&1; + echo Exit status is $?; + $DEBUGFS -R "dump /test/dir/file $TMPFILE.testme" "$TMPFILE.$ext" 2>&1; + echo Exit status is $?; + # extract the files and directories from the image and tar them + # again to make sure that a tarball from the image contents is + # bit-by-bit identical to the tarball the image was created + # from -- essentially this checks whether a roundtrip from tar + # to ext4 to tar remains identical + $DEBUGFS -R "rdump /test $MKFS_DIR" "$TMPFILE.$ext" 2>&1; + echo Exit status is $?; + # debugfs rdump does not preserve the timestamps when it extracts the + if test -z "$use_mkgnutar"; then + # files so we ignore them by using tar --clamp-mtime + $TAR --sort=name -C "$MKFS_DIR" \ + --mtime="$DEBUGFS_EXE" --clamp-mtime --format=gnu \ + -cvf "$TMPFILE.new.tar" test 2>&1; + else + perl $test_dir/mkgnutar.pl --verbose --directory="$MKFS_DIR" --mtime "$DEBUGFS_EXE_MTIME" test 2>&1 > "$TMPFILE.new.tar"; + fi; + echo Exit status is $?; + $FSCK -f -n "$TMPFILE.$ext" 2>&1; + echo Exit status is $?; + # independent from which tarball the ext4 image was created, + # the tarball created from the files in it should be bit-by-bit + # identical to the tarball without duplicate entries + cmp "$MKFS_TAR.uniq" "$TMPFILE.new.tar" 2>&1; + echo Exit status is $?; + } | sed -f "$cmd_dir/filter.sed" -f "$test_dir/output.sed" -e "s;$TMPFILE.$ext;test.img;" | { + # In the first pass, store the output and append to the log + # file. In the second pass, compare the output to the output + # to the one from the first. + case $ext in + uniq) tee "$TMPFILE.log" >> "$OUT";; + dupl) cmp - "$TMPFILE.log" >> "$OUT" 2>&1 || echo "cmp failed" >> "$OUT";; + esac + } + rm -r "$MKFS_DIR" "$TMPFILE.new.tar" +done + +# Do the verification +cmp -s "$OUT" "$EXP" +status=$? + +if [ "$status" = 0 ] ; then + echo "$test_name: $test_description: ok" + touch "$test_name.ok" +else + echo "$test_name: $test_description: failed" + diff $DIFF_OPTS "$EXP" "$OUT" > "$test_name.failed" +fi + +rm -rf "$MKFS_TAR.dupl" "$MKFS_TAR.uniq" "$TMPFILE.cmd1" "$TMPFILE.cmd2" \ + "$TMPFILE.log" "$TMPFILE.dupl" "$TMPFILE.uniq" "$TMPFILE.testme" +unset MKFS_TAR MKFS_DIR OUT EXP |