[Serusers] Loose routing question

[reticent]

Whoops, sorry for the confusion

Guess i don't know as much about SER as i thought i did =P

tavis

Martin Koenig wrote:

> reticent wrote:
>
>> Currently (in rel_0_9_) the "loose_route()" function will NOT match a
>> message unless SER has some stateful information regarding that
>> transaction in memory (my assumption has been that the information is
>> created when the "record_route()" or "record_route_preset()" functions
>> are used and is referenced by "loose_route()" according to the "tag=..."
>> header field inside the "Route:" header), so simply adding a "Route:
>> ..." header into the sip message will not be loose_routed.
>>  
>>
>
> Could a Developer please ACK / non-ACK this that Ser suddenly turned
> call stateful?
>
> Regards,
> Martin
>
>>
>>
>> Michael Ulitskiy wrote:
>>
>>  
>>
>>> Hello,
>>>
>>> I'm trying to comprehend loose routing concept and I have
>>> a question that concerns me.
>>> As far as I understand loose routing says that if there're Route
>>> headers in a message it should be forwarded according to the URIs
>>> set in Route headers. I thought that this is true only within a
>>> dialog, but RFC3261 (part 16.6) says:
>>> "Requests establishing a dialog may contain a preloaded Route header
>>> field."
>>> Also SER manual says: " the failure not to include loose routing in
>>> your scripts may lead to infinite loops. Make sure that you include
>>> the following script fragment immediately after request sanity
>>> checks" and provide the following
>>> piece of code:
>>> if (loose_route()) {
>>>       t_relay();
>>>       break;
>>> };
>>>
>>> which as far as I understand unconditionally forwards message if
>>> Route header
>>> is present.
>>> So I'm wondering what about security? If I follow this guidelines
>>> how I would
>>> shield my PSTN gateway if anyone can construct message and pre-load
>>> it with URI of my gateway and all my proxies must honor it.
>>> For example I have a PSTN gateway on ip address 10.1.1.5 and proxy
>>> on 10.1.1.10 that supposed to interface outside world.
>>> So I guess if someone construct a message like this:
>>>
>>> INVITE sip:12345 at somewhere.com SIP/2.0
>>> ...
>>> Route: <sip:12345 at 10.1.1.5;lr>
>>>
>>> my proxy will forward it to PSTN gateway and it will make outbound
>>> call.
>>>
>>> Is this true? Please enlighten me on this.
>>> Thank you,
>>>
>>> Michael
>>>
>>> _______________________________________________
>>> Serusers mailing list
>>> serusers at lists.iptel.org
>>> http://lists.iptel.org/mailman/listinfo/serusers
>>>
>>>
>>>
>>>
>>>   
>>
>>
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>>  
>>
>
>