Re: [PATCH] auvirt: a new tool for reporting events related to virtual machines

[Marcelo Cerri <mhcerri@linux.vnet.ibm.com>]

Hi Steve,

Thanks for you feedback.

I'm already updating the source code based on your comments and looking 
for another events that may be correlated to a VM.

But I'm not sure what means "anomaly events". Would it be malformed 
records (without some fields, for example) or a specific record type 
generated by the kernel or some other userspace application?

Regards,
Marcelo

On 12/20/2011 04:18 PM, Steve Grubb wrote:
> On Thursday, December 15, 2011 10:56:51 AM Marcelo Cerri wrote:
>> This patch adds a new tool to extract information related to virtual
>> machines from the audit log files. It can output a summary with
>> information about the number of events found with details by type of
>> record and operation. The tool can also output the filtered records as
>> found in the audit log.
>>
>> Using the --avc option auvirt tries to correlate AVC records to the guests
>> based on its security context. It's also possible to select records related
>> to just one guest using the UUID or the guest name.
> I'm wondering about this tool. It runs fine. But I thought you were wanting to do
> some more sophisticated analysis of events. For example this is the current
> output:
>
> $ ./auvirt --file ../../../virt-audit.log
> Total records:      6
> Virt records:       6
> Resource records:   4
> Machine ID records: 1
> AVC records:        0
> Operations:
>    Start:            1
>    Stop:             0
> Considered time:
>    Start:            Tue Dec 20 09:33:01 2011
>    End:              Tue Dec 20 09:33:01 2011
>
> This is not much different than what can be reported by ausearch/report with the
> new uuid and vm search fields. Also, testing with the uuid number doesn't seem to
> get any hits. But using the vm name does.
>
> I plan to add a very basic virt report to aureport soon. I was wondering if the
> above is all anyone really wanted to see? I would think that perhaps you want
> some info about start/stop assignment of resources, changes in resources, and
> perhaps MAC or anomaly events related to a vm. But laid out like the aulast
> program.
>
> boot  vm-name   time  (total runtime)
> resource  what-kind  old-value  new-value  time (total time assigned)
> avc   access-type  obj  results  time
> shutdown  vm-name  time
>
> and there might be other audit events associated with a vm.
>
> -Steve
>