diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:49:25 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:49:25 +0000 |
commit | 464df1d5e5ab1322e2dd0a7796939fff1aeefa9a (patch) | |
tree | 6a403684e0978f0287d7f0ec0e5aab1fd31a59e1 /tests/u_mke2fs_opt_offset | |
parent | Initial commit. (diff) | |
download | e2fsprogs-464df1d5e5ab1322e2dd0a7796939fff1aeefa9a.tar.xz e2fsprogs-464df1d5e5ab1322e2dd0a7796939fff1aeefa9a.zip |
Adding upstream version 1.47.0.upstream/1.47.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/u_mke2fs_opt_offset')
-rw-r--r-- | tests/u_mke2fs_opt_offset/script | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/tests/u_mke2fs_opt_offset/script b/tests/u_mke2fs_opt_offset/script new file mode 100644 index 0000000..4b34b7a --- /dev/null +++ b/tests/u_mke2fs_opt_offset/script @@ -0,0 +1,104 @@ +test_description="e2undo and mke2fs with offset option" +OUT="$test_name.log" +TDB_FILE="$TMPFILE.e2undo" + +E2UNDO_FEATURE_COMPAT_OFFSET=1 + +trap "rm -f $TDB_FILE" EXIT INT QUIT + +test_e2undo_mke2fs_off() { + OFF=$1 + + rm -f "$TDB_FILE" + echo "testing e2undo and mke2fs with the -E offset=$OFF option" >> "$OUT" + # prepare $TMPFILE + yes a | $DD of="$TMPFILE" bs="$OFF" count=1 iflag=fullblock \ + > /dev/null 2>>"$OUT" + yes b | $DD bs=1k count=1024 iflag=fullblock >> "$TMPFILE" 2>>"$OUT" + yes c | $DD bs=1k count=3 iflag=fullblock >> "$TMPFILE" 2>>"$OUT" + + crc_exp=`$CRCSUM "$TMPFILE"` + $MKE2FS -F -z "$TDB_FILE" -b 1024 -E offset="$OFF" "$TMPFILE" 1024 \ + >> "$OUT" 2>&1 + + # supplement test with offset specific data + supplement_test_$OFF + + # dump undo header (just to ease debugging in case of a failure) + echo "undo header:" >> "$OUT" + $E2UNDO -h "$TDB_FILE" "$TMPFILE" >> "$OUT" 2>&1 + + # offset is stored in the undo header + $E2UNDO "$TDB_FILE" "$TMPFILE" >> "$OUT" 2>&1 + crc_act=`$CRCSUM "$TMPFILE"` + + # also test the key extension code path: the key for the fs block 960 + # (tdb block 30) is extended by the fs block 992 (tdb block 31) + # => we have exactly 3 key blocks instead of 4 + num_keys_exp=3 + num_keys_act=`$E2UNDO -h "$TDB_FILE" "$TMPFILE" | grep "^nr keys:" \ + | cut -f2` + + offset_exp=$OFF + offset_act=`$E2UNDO -h "$TDB_FILE" "$TMPFILE" | grep "^fs offset:" \ + | cut -f2` + compat_exp=$E2UNDO_FEATURE_COMPAT_OFFSET + compat_act=`$E2UNDO -h "$TDB_FILE" "$TMPFILE" | grep "^compat:" | cut -f3` + + if [ "$crc_exp" != "$crc_act" -o \ + "$num_keys_exp" != "$num_keys_act" -o \ + "$offset_exp" != "$offset_act" -o \ + $(($compat_act & $E2UNDO_FEATURE_COMPAT_OFFSET)) -ne $compat_exp ] + then + echo "mke2fs called with offset: $OFF" >> "$test_name.failed" + echo "crc_exp: $crc_exp" >> "$test_name.failed" + echo "crc_act: $crc_act" >> "$test_name.failed" + echo "num_keys_exp: $num_keys_exp" >> "$test_name.failed" + echo "num_keys_act: $num_keys_act" >> "$test_name.failed" + echo "offset_exp: $offset_exp" >> "$test_name.failed" + echo "offset_act: $offset_act" >> "$test_name.failed" + echo "compat_exp: $compat_exp" >> "$test_name.failed" + echo "compat_act: $compat_act" >> "$test_name.failed" + echo >> "$test_name.failed" + fi +} + +supplement_test_2048() { + # modify the two subsequent 1k blocks (1026 and 1027) after the fs end: + # e2undo will overwrite these modified blocks with the old + # data again (this might be considered as a bug (for now, + # this testcase just documents this behavior)) + SEEK_BLOCKS=$(((2048 + 1024 * 1024) / 1024)) + yes d | $DD of="$TMPFILE" bs=1k count=2 seek="$SEEK_BLOCKS" \ + iflag=fullblock > /dev/null 2>>"$OUT" +} + +supplement_test_96255() { + # nothing to supplement + : +} + +# test even offset < tdb_data_size +# with an offset of 2048 the old code wrote an incorrect undo file, +# for example, the computations for fs block 0 were wrong: +# * backing_blk_num was set to ULLONG_MAX - 1 instead of 0 +# * data was read from the beginning of the file instead of offset 2048 +# * data_ptr was set to read_ptr - 2048 +# for details, see the old undo_write_tdb code in undo_io.c +test_e2undo_mke2fs_off 2048 + +# test odd offset > tdb_data_size: 32768 * 3 - 2 * 1024 - 1 +# a somewhat arbitrary value, for example, during the backup of +# fs block 0 such an offset resulted in: +# * the largest "in fs block offset" (96255 % 1024 == 1023) +# * a wrong value for data_size (actual bytes read: 31745) +# * an invalid address for data_ptr +# for details, see the old undo_write_tdb code in undo_io.c +test_e2undo_mke2fs_off 96255 + +if [ -e "$test_name.failed" ]; then + echo "$test_name: $test_description: failed" +else + echo "$test_name: $test_description: ok" + touch "$test_name.ok" +fi |