Ethereal-dev: RE: [Ethereal-dev] Re: [Ethereal-users] Decoding SIP problem

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From: "Anders Broman (AL/EAB)" <anders.broman@xxxxxxxxxxxx>
Date: Wed, 3 Nov 2004 10:51:14 +0100 
Hi,
RFC3261 says:
Request-Line   =  Method SP Request-URI SP SIP-Version CRLF

Does this realy allow multiple SP ?
Best regards
Anders

-----Original Message-----
From: ethereal-dev-bounces@xxxxxxxxxxxx
[mailto:ethereal-dev-bounces@xxxxxxxxxxxx]On Behalf Of Lars Roland
Sent: den 2 november 2004 16:33
To: Ethereal user support
Cc: Ethereal-Dev
Subject: [Ethereal-dev] Re: [Ethereal-users] Decoding SIP problem


Hello Luca,

You are right. Ethereal's SIP parser is not perfect here.
ethereal doesn't recognize your invite as a SIP Message, because there 
are three space characters between the URI and the Version string in the 
request line. The solution is to improve ethereal's sip parser so that 
it treats multiple space characters as a single one.

Unfortunately I have no time to work on this right now, but others might 
have.

Regards,
Lars


Bianchi Luca wrote:

> Hello,
>  
> I'm using ethereal 0.10.7 for monitoring SIP calls. I found a problem in 
> decoding an INVITE message, in the attachement you can find the 
> "invite_ko.cap" and the corresponding "invite_ok.txt", I mean the same 
> packet decoded correctly with another analyzer.
>  
> I hope this could be helpful for improving SIP decoding.
>  
> Best Regards,
>  
> Luca Bianchi
>  
> 
> Luca Bianchi
> 
> Telecom Italia LAB LAB.TS.S
> 
> Via Reiss Romoli, 274 - 10148 Turin (Italy)
> 
> Tel.: +39.011.2287336
> 
> Fax.: +39.011.2286813
> 
> Mob.: +39 335 1326587
> 
> E-mail: luca1.bianchi@xxxxxxxxxxxxxxxx
> 
> _http://www.telecomitalialab.com_ <http://www.telecomitalialab.com/>
> 
> Gruppo Telecom Italia - Direzione e coordinamento di Telecom Italia S.p.A.
> 
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> ------------------------------------------------------------------------
> 
> 11:04:29/757.4 1-    D4 +D4 DATA UNIT----------------------------------[00608]+
>                         | Protocol: UDP        from IP                        |
>                         |  S:163.162.180.150 D:163.162.51.230                 |
>                         +-----------------------------------------------------+
>                      D4 UDP   (S:05062 D:05060)  Len:00574 Chk:3a79     [0566]
>                      D5 SIP                                             [0566]
>                           INVITE sip:__sip-uireq@xxxxxxxxxxxxxx;user=243883   SIP/2.0
>                           Route: <sip:163.162.51.230:5060>
>                           CSeq: 2025723182 INVITE
>                           i: 1099389867310--7732263889123288985@163.162.180.13
>                           t: <sip:__sip-uireq@xxxxxxxxxxxxxx>
>                           f: <sip:55555@xxxxxx>;tag=10993897120413
>                           l: 0
>                           m: <sip:163.162.180.151:5060>
>                           Max-Forwards: 69
>                           Record-Route: <sip:sSsS.a3a2b4a0@163.162.180.150;lr>
>                           v: SIP/2.0/UDP 163.162.180.150:5060 ;branch=z9hG4bK.sSsS.a3a2b4a0.3fe1febd9bd
>                           4c828068a210fa25380.465, SIP/2.0/UDP 163.162.180.151:5060 ;branch=z9hG4bK.sSs
>                           S.a3a2b4a1.da910d74d113e1ed53b6766a431f1f0.330
>                           
> 
> 
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