ksmbd: handle AAPL stream copy length mismatch

macOS can reuse the main file's chunk list when issuing a copychunk
request for alternate data streams. The requested source range can
therefore exceed the length of the xattr-backed stream and currently
fails with STATUS_INVALID_VIEW_SIZE.

For AAPL connections copying between two streams, limit the actual copy
to the available source data while reporting the requested chunk length
as written. Keep the source range validation unchanged for non-AAPL
connections and requests involving a regular file.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

0 files changed, 0 insertions, 0 deletions