[OpenSIPS-Users] corrupted header

[Bogdan-Andrei Iancu]

Hi Jan,

More or less, the response is no.

There are mechanism to detect the parsing error (see error_route - 
http://www.opensips.org/Resources/DocsCoreRoutes15#toc5), but to send a 
reply (like the 400), you need the VIA header.
In other words, the messages is so FUBAR, so you cannot even build a 
reply for it - VIA is one of the critical headers used in routing back 
replies.

Regards,
Bogdan

Jan D. wrote:
> Some of our clients use a Siemens HiPath 3000 V7.0 M5T. When I check my log
> files I sometimes see this error (example):
>
> Aug 21 08:36:01 /usr/sbin/opensips[14928]: ERROR:core:parse_via:  invalid
> port number <27429branch=z9h***5ac>
>
> This is the part of the sip header (example):
> Via: SIP/2.0/UDP 89.*.*.73:27429branch=z9h***5ac;rport 
>
> The semicolon between portnumber and 'branch' is missing. I think this is a
> bug in the HiPath software (and this has been reported) but I can not change
> this at this moment.
>
> The question is, can I build in a check to see if a record is corrupt (or
> valid) so I can sent a normal sip response (ei. 400 Bad Request)?
>
> Any comment / idea's are welcome.
>
> Jan
>