Given the following ACL, onwer fails to create subfolder with ACCESS_DENIED.

# /usr/local/samba/bin/smbcacls -U mike%mikeliu123 //localhost/test /
REVISION:1
CONTROL:SR|DP
OWNER:MIKE-X85U\mike
GROUP:MIKE-X85U\administrators
ACL:Owner Rights:ALLOWED/OI|CI/FULL

# /usr/local/samba/bin/smbclient -U  mike%mikeliu123 //localhost/test -c 'mkdir haha'
NT_STATUS_ACCESS_DENIED making remote directory \haha

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The problem is triggered by:

* mkdir_internal() calls check_parent_access_fsp()

* SMB_VFS_FGET_NT_ACL(fsp, SECINFO_DACL, frame, &parent_sd) only fetchs SECINFO_DAL 
  and passes parent_sd to se_file_access_check()

* se_access_check() will not check for explicit owner rights because sd->owner_sid is NULL.


Should we grant owner sid to check for explicit owner rights ?

NTSTATUS check_parent_access_fsp(struct files_struct *fsp,
				 uint32_t access_mask)
{
    /* ... */
	
	status = SMB_VFS_FGET_NT_ACL(fsp,
+				SECINFO_OWNER | SECINFO_DACL,
-				SECINFO_DACL,
				frame,
				&parent_sd);
				
	/* ... */			
}