[PATCH 0/4] btrfs-progs: fix the filename sanitization of btrfs-image

[Qu Wenruo <wqu@suse.com>]

There are several bugs in btrfs-image filename sanitization:

- Ensured kernel path resolution bug
  Since during path resolution btrfs uses hash to find the child inode,
  with garbage filled DIR_ITEMs, it's definitely unable to properly
  resolve the path.

  A warning is added to the man page by the first patch.

- Only the last item got properly sanitized
  All the remaining INODE_REF/DIR_INDEX/DIR_ITEM are not sanitized at
  all.

  This is fixed by the second patch.

- Sanitized filename contains non-ASCII chars
  This is fixed by the third patch.


Finally a new test case is introduced to verify the filename
sanitization behavior of btrfs-image.

Qu Wenruo (4):
  btrfs-progs: add warning for -s option of btrfs-image
  btrfs-progs: image: fix the bug that filename sanitization not working
  btrfs-progs: fix rand_range()
  btrfs-progs: misc-tests: add a test case for filename sanitization

 Documentation/btrfs-image.rst               | 17 ++++++-----
 common/utils.c                              | 10 +++----
 image/sanitize.c                            |  8 ++++-
 tests/misc-tests/065-image-filename/test.sh | 33 +++++++++++++++++++++
 4 files changed, 55 insertions(+), 13 deletions(-)
 create mode 100755 tests/misc-tests/065-image-filename/test.sh

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2.45.2