Re: [dnssd] SRP: how to remove all published services?

Oh, except the text you quoted says precisely that, so I think we're okay.
Thanks, Jonathan. :)

On Fri, Sep 15, 2023 at 10:40 AM Ted Lemon <mellon@fugue.com> wrote:

> Was the question more "what if the requestor sends a partial remove (host
> plus not all services) with lease time zero?" I think the answer is that it
> removes all the services, because the other services are pointing to the
> host, and the host has to be removed; this means that any remaining
> services pointing to that host are simply invalid. We could certainly add a
> note clarifying this point, although it's a bit late in the process for
> that.
>
> On Fri, Sep 15, 2023 at 10:31 AM Jonathan Hui <jonhui=
> 40google.com@dmarc.ietf.org> wrote:
>
>> Hi Esko,
>>
>> I believe this is addressed by the immediately following paragraphs in
>> the same section? Specifically:
>>
>>    To support this, when removing services based on the lease time being
>>    zero, an SRP registrar MUST remove all service instances pointing to
>>    a host when a host is removed, even if the SRP requestor doesn't list
>>    them explicitly.  If the key lease time is nonzero, the SRP registrar
>>    MUST NOT delete the KEY records for these SRP requestors.
>>
>> So there is no need to list all the services that were previously
>> registered.
>>
>> --
>> Jonathan Hui
>>
>>
>>
>> On Fri, Sep 15, 2023 at 7:17 AM Esko Dijk <esko.dijk@iotconsultancy.nl>
>> wrote:
>>
>>> A question - in 3.2.5.5.1., Removing all published services, we have:
>>>
>>>
>>>
>>>    To remove all the services registered to a particular host, the SRP
>>> requestor retransmits its most recent update with an Update Lease option
>>> that has a LEASE value of zero.
>>>
>>>
>>>
>>> I wonder how this exactly works in the following case. If I’ve
>>> registered service A, and 10 minutes later registered service B in addition
>>> (without mentioning A in the second SRP Update), then both services A and B
>>> are actively registered.  Now I send the “most recent SRP Update” which has
>>> only service B to the SRP registrar, with a LEASE value of zero.
>>>
>>> Wouldn’t it be that only service B is removed (lease set to 0) while
>>> service A stays active?
>>>
>>>
>>>
>>> If so, we may need to clarify this text I think. Because it’s not always
>>> the “most recent SRP Update” then.
>>>
>>> (If not so, I’m having trouble understanding how the LEASE value in the
>>> SRP Update does apply to all currently registered services….)
>>>
>>>
>>>
>>> Esko
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>>> dnssd@ietf.org
>>> https://www.ietf.org/mailman/listinfo/dnssd
>>>
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>