[SR-Users] nat_uac_test not recognized command in onreply_route
Daniel-Constantin Mierla
miconda at gmail.com
Mon Jan 7 16:16:08 CET 2019
Welcome, good it was figured out!
Daniel
On 07.01.19 15:18, Andrew Chen wrote:
> Ah you are right. I did somehow not define WITH_NAT for some reason.
> thanks!
>
> On Mon, Jan 7, 2019 at 9:06 AM Daniel-Constantin Mierla
> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>
> Hello,
>
> there seems to be something wrong in your config with loading the
> nathelper module, can you check if you have proper #!ifdef ...
> #!endif blocks?
>
> Try to run it with debug=3 and see if you can spot more hints via
> the DEBUG messages printed in the logs...
>
> Cheers,
> Daniel
>
> On 07.01.19 14:44, Andrew Chen wrote:
>> Hi Daniel,
>>
>> Here is all of it:
>>
>> Jan 3 18:33:01 sjomainkama55 systemd[1]: Stopped Kamailio
>> (OpenSER) - the Open Source SIP Server.
>> Jan 3 18:33:01 sjomainkama55 systemd[1]: Starting Kamailio
>> (OpenSER) - the Open Source SIP Server...
>> Jan 3 18:33:01 sjomainkama55 kamailio: ERROR: <core>
>> [core/cfg.y:3309]: yyparse(): cfg. parser: failed to find command
>> nat_uac_test (params 1)
>> Jan 3 18:33:01 sjomainkama55 kamailio: CRITICAL: <core>
>> [core/cfg.y:3449]: yyerror_at(): parse error in config file
>> /etc/kamailio/kamailio.cfg, line 1093, column 28: unknown
>> command, missing loadmodule?
>> Jan 3 18:33:01 sjomainkama55 kamailio: ERROR: <core>
>> [core/cfg.y:3309]: yyparse(): cfg. parser: failed to find command
>> add_contact_alias (params 0)
>> Jan 3 18:33:01 sjomainkama55 kamailio: CRITICAL: <core>
>> [core/cfg.y:3449]: yyerror_at(): parse error in config file
>> /etc/kamailio/kamailio.cfg, line 1098, column 35: unknown
>> command, missing loadmodule?
>> Jan 3 18:33:01 sjomainkama55 kamailio[12334]: ERROR: bad config
>> file (2 errors)
>>
>> I just realized it missed the add_contact_alias as well. This
>> is the config in the Websocket module page which I copy and pasted:
>> onreply_route[WS_REPLY] {
>> if (nat_uac_test(64)) {
>> # Do NAT traversal stuff for replies to a WebSocket connection
>> # - even if it is not behind a NAT!
>> # This won't be needed in the future if Kamailio and the
>> # WebSocket client support Outbound and Path.
>> add_contact_alias();
>> }
>> }
>>
>>
>> On Mon, Jan 7, 2019 at 3:42 AM Daniel-Constantin Mierla
>> <miconda at gmail.com <mailto:miconda at gmail.com>> wrote:
>>
>> Hello,
>>
>> nat_uac_test(...) is allowed in the reply route block. The
>> error is not about using the function in an invalid route
>> block, but that the function is not found by name and 1
>> parameter.
>>
>> Were there other error messages before the one you pasted in
>> your message?
>>
>> Cheers,
>> Daniel
>>
>> On 04.01.19 01:28, Andrew Chen wrote:
>>> Yup. The default configuaration already have the
>>> nathelper.so loaded. Plus, there are other places in the
>>> config where nat_uac_test was called but never error out.
>>>
>>> On Thu, Jan 3, 2019 at 5:39 PM Sergey Okhapkin
>>> <sos at sokhapkin.dyndns.org <mailto:sos at sokhapkin.dyndns.org>>
>>> wrote:
>>>
>>> Did you load the module?
>>>
>>> On Thursday, January 3, 2019 5:27:12 PM EST Andrew Chen
>>> wrote:
>>>
>>> Hey it's me again.
>>>
>>>
>>> So I'm following the instructions in the Kamailio 5.1.x
>>> wiki module page for websocket configuration and it
>>> specifically mention to set this block:
>>>
>>>
>>> onreply_route[WS_REPLY] {
>>>
>>> xlog("L_INFO", "[CSeq $cs] Is in WS_REPLY.");
>>>
>>> xlog("L_INFO", "[CSeq $cs] Sending $rs $rr to
>>> $sel(via[2].host) via $sel(via[2].transport) len: $ml");
>>>
>>> xlog("L_INFO", "[CSeq $cs] \n$mb \n");
>>>
>>>
>>> if(nat_uac_test("64")) {
>>>
>>> # Do NAT traversal stuff for replies to
>>> a WebSocket connection
>>>
>>> # - even if it is not behind a NAT!
>>>
>>> # This won't be needed in the future if
>>> Kamailio and the
>>>
>>> # WebSocket client support Outbound and
>>> Path.
>>>
>>> add_contact_alias();
>>>
>>> }
>>>
>>> }
>>>
>>>
>>> When I did this and started up Kamailio, it gave me an
>>> error:
>>>
>>>
>>> Jan 3 22:19:43 sjomainkama55 kamailio: ERROR: <core>
>>> [core/cfg.y:3309]: yyparse(): cfg. parser: failed to
>>> find command nat_uac_test (params 1)
>>>
>>>
>>> I moved that if statement to a route block and I was
>>> able to start it up.
>>>
>>>
>>> The wiki page for nathelper module specify this function
>>> can be run in onreply_route as well:
>>>
>>>
>>>
>>> 5.5. nat_uac_test(flags)
>>>
>>> Tries to guess if client's request originated behind a
>>> nat. The parameter determines what heuristics is used.
>>>
>>> Meaning of the flags is as follows:
>>>
>>> * 1 - The “Contact” header field is searched for
>>> occurrence of RFC1918 or RFC6598 addresses.
>>> * 2 - the "received" test is used: address in
>>> the “Via” header is compared against source IP
>>> address of signaling
>>> * 4 - The Top Most “Via” is searched for occurrence of
>>> RFC1918 or RFC6598 addresses
>>> * 8 - The SDP is searched for occurrence of RFC1918 or
>>> RFC6598 addresses
>>> * 16 - Test if the source port is different from the
>>> port in the “Via” header
>>> * 32 - Test if the source IP address of signaling is a
>>> RFC1918 or RFC6598 address
>>> * 64 - Test if the source connection of signaling is a
>>> WebSocket
>>> * 128 - Test if the “Contact” header URI port differs
>>> from the source port of the request (Warning: this
>>> is might be legal or even intended combination in
>>> non NATted scenarios)
>>>
>>> All flags can be bitwise combined, the test returns true
>>> if any of the tests identified a NAT.
>>>
>>> This function can be used from REQUEST_ROUTE,
>>> ONREPLY_ROUTE, FAILURE_ROUTE, BRANCH_ROUTE.
>>>
>>>
>>> is this some known bug in 5.1.x?
>>>
>>> Thanks
>>>
>>>
>>> --
>>>
>>> Andy Chen
>>>
>>> achen@ <mailto:achen at thinkingphones.com>fuze.com
>>> <http://fuze.com>
>>>
>>>
>>>
>>>
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>>>
>>> --
>>> Andy Chen
>>> Sr. Telephony Lead Engineer
>>> 415 516 5535 (M)
>>> achen@ <mailto:achen at thinkingphones.com>fuze.com
>>> <http://fuze.com>
>>>
>>>
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>>
>> --
>> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
>> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com <http://www.kamailioworld.com>
>> Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com <http://www.asipto.com>
>>
>>
>>
>> --
>> Andy Chen
>> Sr. Telephony Lead Engineer
>> 415 516 5535 (M)
>> achen@ <mailto:achen at thinkingphones.com>fuze.com <http://fuze.com>
>>
>>
>> *Confidentiality Notice: The information contained in this e-mail
>> and any
>> attachments may be confidential. If you are not an intended
>> recipient, you
>> are hereby notified that any dissemination, distribution or
>> copying of this
>> e-mail is strictly prohibited. If you have received this e-mail
>> in error,
>> please notify the sender and permanently delete the e-mail and any
>> attachments immediately. You should not retain, copy or use this
>> e-mail or
>> any attachment for any purpose, nor disclose all or any part of the
>> contents to any other person. Thank you.*
>
> --
> Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
> www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
> Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com <http://www.kamailioworld.com>
> Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com <http://www.asipto.com>
>
>
>
> --
> Andy Chen
> Sr. Telephony Lead Engineer
> 415 516 5535 (M)
> achen@ <mailto:achen at thinkingphones.com>fuze.com <http://fuze.com>
>
>
> *Confidentiality Notice: The information contained in this e-mail and any
> attachments may be confidential. If you are not an intended recipient, you
> are hereby notified that any dissemination, distribution or copying of
> this
> e-mail is strictly prohibited. If you have received this e-mail in error,
> please notify the sender and permanently delete the e-mail and any
> attachments immediately. You should not retain, copy or use this e-mail or
> any attachment for any purpose, nor disclose all or any part of the
> contents to any other person. Thank you.*
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - May 6-8, 2019 -- www.kamailioworld.com
Kamailio Advanced Training - Mar 4-6, 2019 in Berlin; Mar 25-27, 2019, in Washington, DC, USA -- www.asipto.com
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