[libvirt] Dumping network traffic

[Eric Blake]

On 07/23/2012 01:14 PM, Laine Stump wrote:
> On 07/23/2012 10:26 AM, Hendrik Schwartke wrote:
>> I'm currently working on a feature that dumps the network traffic of a virtual interface over the streaming api of libvirt.
>> The goal is to offer the possiblity to debug network related problems of guests without the need to have access to a shell on the host.
>> E.g. "virsh iface-dumptraffic virbr0 icmp | tcpdump -n -r -" prints all icmp traffic on virbr0 to stdout.
>> The code below is only a proof of concept, but it should be possible to recognize what I have in mind and how I want to implement it.
>>     
>> So I would appreciate any comments on that!
>>
> 
> It's definitely interesting functionality, but putting it in
> netcf_driver.c doesn't seem like the right place, since it doesn't use
> any netcf functionality, and could just as easily be made to work
> without it. On the other hand, since (the way you've implemented it) it
> is related to host interfaces, it kind of makes logical sense for it to
> be named virInterface<something>, and the backend of all those commands
> is currently in netcf_driver.c.

Then again, I have a patch that I need to revive and post a v2, which
renames things to use interface_driver instead of netcf_driver...

https://www.redhat.com/archives/libvir-list/2012-June/msg01331.html

-- 
Eric Blake   eblake at redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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