Hello, This patch series improves e2fsprogs for case-insensitive filesystems. First, it allows tune2fs to enable the 'casefold' feature on existing filesystems. Then, it improves e2fsck by allowing it to: - fix entries containing invalid UTF-8 characters - detect duplicated entries By default, invalid filenames are only checked when strict mode is enabled. A new option is therefore added to allow the user to force this verification. This series has been tested by running xfstests, and by manually corrupting the test filesystem using debugfs as well. Best regards, Arnaud --- Changes in v3: - removed extra lines across the whole series - renamed PR_2_BAD_CASEFOLDED_NAME to PR_2_BAD_ENCODED_NAME and fixed its value Changes in v2: - added missing comment in e2fsck/pass1.c - added a new problem code dedicated to bad encoded file names - reworked a test in e2fsck/pass2.c Arnaud Ferraris (1): e2fsck: Add new problem for encoded name check Gabriel Krisman Bertazi (11): tune2fs: Allow enabling casefold feature after fs creation tune2fs: Fix casefold+encrypt error message ext2fs: Add method to validate casefolded strings ext2fs: Implement faster CI comparison of strings e2fsck: Fix entries with invalid encoded characters e2fsck: Support casefold directories when rehashing dict: Support comparison with context e2fsck: Detect duplicated casefolded direntries for rehash e2fsck: Add option to force encoded filename verification e2fsck.8.in: Document check_encoding extended option tests: f_bad_fname: Test fixes of invalid filenames and duplicates e2fsck/e2fsck.8.in | 4 ++ e2fsck/e2fsck.c | 4 ++ e2fsck/e2fsck.h | 2 + e2fsck/pass1.c | 18 ++++++++ e2fsck/pass1b.c | 2 +- e2fsck/pass2.c | 76 ++++++++++++++++++++++++++++++--- e2fsck/problem.c | 5 +++ e2fsck/problem.h | 3 ++ e2fsck/rehash.c | 85 ++++++++++++++++++++++++++++++------- e2fsck/unix.c | 4 ++ lib/ext2fs/ext2fs.h | 5 +++ lib/ext2fs/ext2fsP.h | 5 +++ lib/ext2fs/nls_utf8.c | 62 +++++++++++++++++++++++++++ lib/support/dict.c | 22 +++++++--- lib/support/dict.h | 4 +- lib/support/mkquota.c | 2 +- misc/tune2fs.c | 17 +++++++- tests/f_bad_fname/expect.1 | 22 ++++++++++ tests/f_bad_fname/expect.2 | 7 +++ tests/f_bad_fname/image.gz | Bin 0 -> 802 bytes tests/f_bad_fname/name | 1 + 21 files changed, 316 insertions(+), 34 deletions(-) create mode 100644 tests/f_bad_fname/expect.1 create mode 100644 tests/f_bad_fname/expect.2 create mode 100644 tests/f_bad_fname/image.gz create mode 100644 tests/f_bad_fname/name -- 2.29.2