Re: [Qemu-devel] [PATCH 16/16] qapi-schema, qemu-options & slirp: Adding Qemu options for IPv6 addresses

[Eric Blake <eblake@redhat.com>]

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On 10/22/2013 11:45 AM, Samuel Thibault wrote:

>>> It makes sense, yes, the syntax would be [ip6-prefix=net[/netsize]] . I
>>> just don't know how to express that in qapi :)
>>
>> '*ip6_net':'str', '*ip6_netsize':'int'
>>
>> passed on the wire as:
>>
>> "ip6_net":"fc00::1", "ip6_netsize":64
> 
> Err, so that means that the user would have to pass
> "ip6-net=fc00::1,ip6_netsize=64"?  This would look awkward, compared to
> the ipv4 situation, which is a mere "net=10.0.2.2/24".

Err, yes.  QMP is machine-parseable.  HMP can let the user abbreviate to
net=10.0.2.2/24, but QMP should not require reparsing.  So what if it's
longer, it's easier for machines to manipulate if it's already broken
into parts.  Trust me - I wouldn't be asking you to split it into two
fields unless I thought that libvirt would much rather send it to you as
two fields.

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


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