[SR-Users] nat_uac_test not recognized command in onreply_route
Andrew Chen
achen at fuze.com
Mon Jan 7 15:18:06 CET 2019
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>
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>
> 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>
>> 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@ <achen at thinkingphones.com>fuze.com
>>>
>>>
>>>
>>>
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>>
>>
>> --
>> Andy Chen
>> Sr. Telephony Lead Engineer
>> 415 516 5535 (M)
>> achen@ <achen at thinkingphones.com>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
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>>
>> _______________________________________________
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>>
>> --
>> Daniel-Constantin Mierla -- www.asipto.comwww.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
>>
>>
>
> --
> Andy Chen
> Sr. Telephony Lead Engineer
> 415 516 5535 (M)
> achen@ <achen at thinkingphones.com>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.comwww.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
>
>
--
Andy Chen
Sr. Telephony Lead Engineer
415 516 5535 (M)
achen@ <achen at thinkingphones.com>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.*
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