s3:vfs: add SMB_VFS_READDIR_ATTR()

SMB_VFS_READDIR_ATTR is a last minute hook to fetch additional metadata
for a directory entry when we're already marshalling the SMB reply
buffer.

This would be used, when there's a need to repurpose some fields in the
the reply, like it's done with Apple's SMB2 extension "AAPL".

Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/source3/smbd/vfs.c b/source3/smbd/vfs.c
index 8e33f2d1a8..4b9696393a 100644
--- a/source3/smbd/vfs.c
+++ b/source3/smbd/vfs.c
@@ -2461,3 +2461,12 @@ NTSTATUS smb_vfs_call_durable_reconnect(struct vfs_handle_struct *handle,
 					         old_cookie, mem_ctx, fsp,
 					         new_cookie);
 }
+
+NTSTATUS smb_vfs_call_readdir_attr(struct vfs_handle_struct *handle,
+				   const struct smb_filename *fname,
+				   TALLOC_CTX *mem_ctx,
+				   struct readdir_attr_data **attr_data)
+{
+	VFS_FIND(readdir_attr);
+	return handle->fns->readdir_attr_fn(handle, fname, mem_ctx, attr_data);
+}