[SR-Users] Malformed To header, or?

Daniel-Constantin Mierla miconda at gmail.com
Thu Nov 3 09:57:40 CET 2016


Hello,


are the From/To headers changed by the endpoint? Or the are the same as
in the initial INVITE/200ok?


Cheers,
Daniel


On 02/11/16 14:57, Tobias wrote:
>
> Hello!
>
>
> Correct, we're using uac_replace_from() when passing along the initial
> INVITE. That INVITE looks good so it's not until this reINVITE that
> the header is scrambled.
>
>
> Kind regards,
>
> /Tobias
>
>
> ------------------------------------------------------------------------
> *From:* Daniel-Constantin Mierla <miconda at gmail.com>
> *Sent:* Wednesday, November 2, 2016 10:12 AM
> *To:* Tobias; Kamailio (SER) - Users Mailing List
> *Subject:* Re: [SR-Users] Malformed To header, or?
>  
>
> Hello,
>
>
> kamailio is not adding user=phone to To header by itself, it has to be
> something in the kamailio.cfg. What do you use to change the To? Or
> for changing From in initial INVITE?
>
>
> Cheers,
> Daniel
>
>
> On 01/11/16 20:35, Tobias wrote:
>>
>> Hi Daniel,
>>
>>
>> Thanks for your quick response. Makes totally sense, I'll need to
>> debug why I'm getting that malformed header.
>>
>>
>> Do you think my second question is related? I cannot see the same
>> malformed data in the example where the to-header is rewritten, it
>> just looks like Kamailio adds ";user=phone" but the ip address is all
>> obfuscated:
>>
>> A similar issue seen, which for some reason doesn't create an ERROR,
>> is when Kamailio receives a reINVITE looking like this which it's
>> supposed to proxy:
>> To: +123456789
>> <sip:123456789 at 127.0.0.1>;tag=SD1sf9001--45026-530b969-77c7543f-530b969.
>> which is rewritten into:
>> To: +123456789
>> <sip:123456789 at 127*0-)'.:/)&7'...0;user=phone>;tag=SD1sf9001--45026-530b969-77c7543f-530b969.
>> and sent out..
>>
>> Thanks,
>> /Tobias
>>
>>
>>
>> ------------------------------------------------------------------------
>> *From:* sr-users <sr-users-bounces at lists.sip-router.org> on behalf of
>> Daniel-Constantin Mierla <miconda at gmail.com>
>> *Sent:* Monday, October 31, 2016 9:07 AM
>> *To:* Kamailio (SER) - Users Mailing List
>> *Subject:* Re: [SR-Users] Malformed To header, or?
>>  
>>
>> Hello,
>>
>>
>> the to header doesn't have the ending '>' after its uri:
>>
>>
>> <<+123456789 <sip:123456789 at 127.0.0.1;tag=as4aa27bd0>>
>>
>>
>> The first << and last >> are from the log messages, but before ;tag=,
>> it has to be another >, to close the one started before <sip:
>>
>>
>> Cheers,
>> Daniel
>>
>>
>> On 28/10/16 21:14, Tobias wrote:
>>> Hi!
>>>
>>> Having some issues with Kamailio 4.3 reporting a malformed header,
>>> but I cannot seem to figure out what's wrong.
>>>
>>> The problem seen is:
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [parser/parse_addr_spec.c:678]: parse_addr_spec(): ERROR: parse_to :
>>> unexpected char [#015] in status 6: <<+123456789
>>> <sip:123456789 at 127.0.0.1;tag=as4aa27bd0>> .
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [parser/msg_parser.c:165]: get_hdr_field(): ERROR: get_hdr_field:
>>> bad to header
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: INFO: <core>
>>> [parser/msg_parser.c:338]: parse_headers(): ERROR: bad header field
>>> [To: +123456789 <si]
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: tm
>>> [t_lookup.c:1050]: t_check_msg(): ERROR: reply cannot be parsed
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [parser/parse_addr_spec.c:678]: parse_addr_spec(): ERROR: parse_to :
>>> unexpected char [#015] in status 6: <<+123456789
>>> <sip:123456789 at 127.0.0.1;tag=as4aa27bd0>> .
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [parser/msg_parser.c:165]: get_hdr_field(): ERROR: get_hdr_field:
>>> bad to header
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: INFO: <core>
>>> [parser/msg_parser.c:338]: parse_headers(): ERROR: bad header field
>>> [To: +123456789 <si]
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [msg_translator.c:1457]: adjust_clen(): error parsing content-length
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [msg_translator.c:2214]: generate_res_buf_from_sip_res(): error
>>> while adjusting Content-Length
>>> Oct 27 13:48:56  /usr/sbin/kamailio[13765]: ERROR: <core>
>>> [forward.c:760]: do_forward_reply(): building failed
>>>
>>> And the To header seen at this point is:
>>> To: +123456789 <sip:123456789 at 127.0.0.1>;tag=as24ed5606.
>>>
>>> version: kamailio 4.3.4 (x86_64/linux) 
>>> flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS,
>>> USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM,
>>> SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX,
>>> FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR,
>>> USE_DST_BLACKLIST, HAVE_RESOLV_RES
>>> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN
>>> 16, MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
>>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
>>> id: unknown 
>>> compiled with gcc 4.7.2
>>>
>>> I obviously understand Kamailio views this To header as malformed,
>>> but what I cannot understand is why? Is it as simple as the number
>>> +123456789 is not enclosed with ", i.e. it should be sent
>>> as "+123456789"?
>>>
>>> A similar issue seen, which for some reason doesn't create an ERROR,
>>> is when Kamailio receives a reINVITE looking like this which it's
>>> supposed to proxy:
>>> To: +123456789
>>> <sip:123456789 at 127.0.0.1>;tag=SD1sf9001--45026-530b969-77c7543f-530b969.
>>> which is rewritten into:
>>> To: +123456789
>>> <sip:123456789 at 127*0-)'.:/)&7'...0;user=phone>;tag=SD1sf9001--45026-530b969-77c7543f-530b969.
>>> and sent out..
>>>
>>>
>>> Thanks for your help,
>>> /Tobias
>>>
>>>
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>
>> -- 
>> Daniel-Constantin Mierla
>> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com
>
> -- 
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

-- 
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Berlin, Nov 28-30, 2016 - http://www.asipto.com

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