[SR-Users] nat_uac_test not recognized command in onreply_route
Daniel-Constantin Mierla
miconda at gmail.com
Mon Jan 7 15:06:16 CET 2019
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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>>
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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
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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