4 0x00000000:no:invalid class
5 0x00000001:fr:file read
6 0x00000002:fw:file write
7 0x00000004:fa:file attribute access
8 0x00000008:fm:file attribute modify
9 0x00000010:fc:file create
10 0x00000020:fd:file delete
11 0x00000040:cl:file close
15 0x00000400:na:non attributable
16 0x00000800:ad:administrative
17 0x00001000:lo:login_logout
18 0x00002000:aa:authentication and authorization
19 0x00004000:ap:application
22 0x80000000:ot:miscellaneous
23 0xffffffff:all:all flags set