[PATCH 0/7] ksmbd: assorted fixes found while adding macOS/Time Machine support

From: Gael Blivet <[email protected]>

These 7 fixes are independent of each other and of any Apple-specific
behavior -- they affect any SMB2/SMB3 client. Found while developing
and live-testing macOS Time Machine support against ksmbd (that series
is being sent separately, based on the same tree).

Two are worth flagging specifically:

- "fix COPYCHUNK for ADS streams" and "report actual xattr value length
  for stream EndOfFile/AllocationSize" affect any client using alternate
  data streams, not just macOS.

- "fix off-by-one rejecting minimal COPYCHUNK query-limits request"
  affects any client probing server copy limits with a minimal
  FSCTL_SRV_COPYCHUNK request (ChunkCount=0).

Each commit builds standalone against ksmbd-for-next-next and has been
checked with checkpatch.pl --strict. The underlying bugs and fixes
were found and verified during live Time Machine/Finder testing on an
earlier baseline; this re-derivation against ksmbd-for-next-next has
been verified to build cleanly but not independently re-tested at
runtime.

Gael Blivet (7):
  ksmbd: fix off-by-one rejecting minimal COPYCHUNK query-limits request
  ksmbd: route stream FileDispositionInformation through stream delete
    flag
  ksmbd: report actual xattr value length for stream
    EndOfFile/AllocationSize
  ksmbd: return STATUS_OBJECT_NAME_NOT_FOUND for unknown IPC pipe names
  ksmbd: quiet mdssvc RPC log spam
  ksmbd: fix stale sparse-file attribute after share reconfiguration
  ksmbd: fix COPYCHUNK for ADS streams

 fs/smb/server/mgmt/user_session.c |  3 ++
 fs/smb/server/smb2pdu.c           | 79 ++++++++++++++++++++++++-------
 fs/smb/server/vfs.c               | 46 +++++++++++++++++-
 fs/smb/server/vfs_cache.c         | 32 +++++++++++++
 fs/smb/server/vfs_cache.h         |  2 +
 5 files changed, 144 insertions(+), 18 deletions(-)

-- 
2.43.0