[Freeswitch-users] Homer SIP capture integration
Peter Steinbach
lists at telefaks.de
Tue Apr 8 14:54:06 MSD 2014
Hello Karsten,
thanks for our input.
In my case, Kamailio does not even put the messages into the database,
so disabling log will not help, I am sure.
But my main question is: Are the additional bytes in front of the SIP
message (see below) valid or not? In that case it may be easy to just
patch the kamailio and drop the bytes in front of the message
Best regards
Peter
On 04/07/14 15:38, Karsten Horsmann wrote:
> Hi,
>
> yes i was testing homer 3.5 dev.
>
> But since the kamailio world 2014 (which was last week in berlin)
> homer 3.6 is on the road in dev tree
> https://code.google.com/p/homer/source/browse/?name=webhomer_3.6
>
> I did the trick with disable the kamailio capture node log-level to zero.
>
> Also, there is a known bug in FreeSWITCH, that webrtc stuff is not
> correctly send via HEP, you see only on call-leg in that behavoir.
> But Alexandr will fix that in future.
>
> Btw, cool stuff is sipgrep 2.0 rewritten in C from Alexandr.
> https://github.com/adubovikov/sipgrep
>
>
>
>
>
> 2014-04-04 17:06 GMT+02:00 Peter Steinbach <lists at telefaks.de
> <mailto:lists at telefaks.de>>:
>
> Hello,
>
> I was following
> http://code.google.com/p/homer/wiki/HOWTO#Capture_Agent
> to have "Homer Sip capture" capturing an displaying a SIP Packets from
> freeswitch.
>
> This worked quite well on a Debian based system. But now we
> migrated it
> to Centos 6 and it does not work anymore, although we used the
> identical
> kamailio source code base. I think the underlying xml parser libs
> somehow work differently on Centos.
>
> What is puzzling me is the following
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: ERROR:
> <core> [parser/msg_parser.c:705]: parse_msg(): ERROR: parse_msg:
> message=<#001#020#002#021#023a#023aaaaaaaSIP/2.0 480 Temporarily
>
> You can see that in front of the SIP message coming from freeswitch
> there are some additional chars
> "#001#020#002#021#023a#023aaaaaaa". And
> by wiresharking the SIP packages, Freeswitch in fact preceedes the SIP
> message it sends to homer with these additional bytes.
> Using a Debian based Kamailio this does not cause problems on the
> Kamailio/Homer side, buit on Centos it does.
>
> So my question is: Is this the right behaviour of Freeswitch when
> forking the SIP message to the capture server?
>
> In
> https://groups.google.com/forum/#!topic/homer-discuss/KhBF0Dy44SU
> <https://groups.google.com/forum/#%21topic/homer-discuss/KhBF0Dy44SU>
> I
> found the following
> >The problem was found: freeswitch duplicate all packets on SIP port
> including empty "ping" messages.
> >with mobile regards,
> >Alexandr
>
> Although I do not really understand the part "including empty ping
> messages": Is there a way to suppress these ping messages?
>
>
> Here is a complete error message:
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: INFO:
> <core> [parser/parse_fline.c:229]: parse_first_line():
> ERROR:parse_first_line: bad request first line
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: INFO:
> <core> [parser/parse_fline.c:231]: parse_first_line(): ERROR: at
> line 0
> char 39:
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: INFO:
> <core> [parser/parse_fline.c:237]: parse_first_line(): ERROR:
> parsed so
> far: #001#020#002#021#023a#023aaaaaaaSIP/2.0 480 Temporarily
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: INFO:
> <core> [parser/parse_fline.c:242]: parse_first_line():
> ERROR:parse_first_line: bad message
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: ERROR:
> <core> [parser/msg_parser.c:705]: parse_msg(): ERROR: parse_msg:
> message=<#001#020#002#021#023a#023aaaaaaaSIP/2.0 480 Temporarily
> Unavailable#015#012Via: SIP/2.0/UDP
> 192.168.178.204:5060;branch=z9hG4bK6569ec1b;rport=5060#015#012Max-Forwards:
> 70#015#012From: "06081688533 <tel:06081688533>"
> <sip:06081688533 at 192.168.178.204
> <mailto:sip%3A06081688533 at 192.168.178.204>>;tag=as190e467c#015#012To:
> <sip:4488329 at 192.168.178.220:5090
> <http://sip:4488329@192.168.178.220:5090>>;tag=1D8c28jZaF72r#015#012Call-ID:
> 17888b4f3812b7686fbaf0ca380be672 at 192.168.178.204#015#012CSeq
> <http://17888b4f3812b7686fbaf0ca380be672@192.168.178.204#015#012CSeq>:
> 102
> INVITE#015#012User-Agent:
> FreeSWITCH-mod_sofia/1.5.11b+git~20140305T111532Z~783a4083ed~64bit#015#012Accept:
> application/sdp#015#012Allow: INVITE, ACK, BYE, CANCEL, OPTIONS,
> MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY#015#012Supported:
> timer,
> path, replaces#015#012Allow-Events: talk, hold, conference,
> refer#015#012Reason:
> Q.850;cause=16;text="NORMAL_CLEARING"#015#012Content-Length:
> 0#015#012Remote-Party-ID: "4488329"
> <sip:4488329 at 192.168.178.220
> <mailto:sip%3A4488329 at 192.168.178.220>>;party=calling;privacy=off;screen=no#015#012#015#012>
> Apr 4 10:33:12 homer2centos /usr/local/sbin/kamailio[20698]: ERROR:
> <core> [receive.c:146]: receive_msg(): ERROR: receive_msg:
> parse_msg failed
>
> --
> With kind regards
> Peter Steinbach
>
> Telefaks Services GmbH
> mailto:lists <mailto:lists> (att) telefaks.de <http://telefaks.de>
> Internet: www.telefaks.de <http://www.telefaks.de>
>
>
> _________________________________________________________________________
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>
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>
> --
> Mit freundlichen Grüßen
> *Karsten Horsmann*
>
>
> _________________________________________________________________________
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>
>
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--
With kind regards
Peter Steinbach
Telefaks Services GmbH
mailto:lists (att) telefaks.de
Internet: www.telefaks.de
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