7 Apr
2017
7 Apr
'17
4:09 p.m.
On 07.04.17 10:50, Juha Heinanen wrote:
if registrar method_filtering param is set, lookup
produces -2 and $du
is not set if method is not listed in allow header of register request.
this is fine with initial requests, but in case of an invite dialog,
initial invite may list another set of methods that the ua supports in
in-dialog requests.
if request uri of in-dialog request is gruu, lookup on it would thus
fail and $du is not set if method of the request was not in allow header
of register request, but was in allow header of initial invite.
in order to solve the problem, my suggestion is that lookup would set
$du also when it returns -2. comments?
I think it would better to have an option (eventually via a new flags
parameter) to control this and lookup() return true, because returning
false but setting some of the destination attributes is somehow misleading.
A quicker solution will be to disable method matching based on presence
of To-tag, because this is anyhow part of an established dialog and this
can be end-to-end without involving the proxy/registrar.
Cheers,
Daniel
--
Daniel-Constantin Mierla
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