kunal chandarana wrote: I'm not sure if you're asking how do you know which fields will appear for a specific type or how can you easily parse the fields. If it's the former there is no such mapping I'm familiar with, there is however a dictionary with all the possible fields in the set of all messages (http://people.redhat.com/sgrubb/audit/audit-parse.txt) The field names are a product of the current kernel and the auditing messages it happens to contain. I don't think anybody has gone through the source code to produce such a map. In addition the message are subject to change based on the discretion of kernel developers. This is one of the frustrations of the current auditing system. However, the messages have been fairly stable so over time it's possible to get a pretty good idea. The source code in the kernel which produces the messages is pretty regular, I don't think it would be too hard to write a tool which scanned the kernel source tree and produced such a map, but I'm not aware of such a tool ATM. If you want to find the fields in the sense of parsing then the auparse library will be of help. -- John Dennis <jdennis(a)redhat.com&gt;