[OpenSIPS-Users] uac_replace_from To header corruption

[Bogdan-Andrei Iancu]

Hi Jeff,

I suspect that the callee device is not properly mirroring the RR header 
(maybe is converting to lower cases the whole string), which is against 
the RFC.

Try to capture the RR in INVITE leaving OpenSIPS and in the BYE received 
by OPenSIPS and see if there are any differences between.

Regards,
Bogdan

Jeff Pyle wrote:
> Hello,
>
> The uac_replace_from() function seems to be corrupting the To header in at
> least some cases.
>
> Here's an example.  A BYE comes in from a PSTN gateway with the following
> headers:
>
> To: "Anonymous" <sip:anonymous at zz.xx.cc.yy>;tag=as12c6b8f1
> Route: 
> <sip:zz.xx.cc.yy;lr=on;ftag=as12c6b8f1;vsf=TXVycjImBhEvMDNhBxNPNhQ1MisgOhRHN
> DAaTCEICg-->
>
>
> After passing through Opensips, the To header reads (TN obfuscated for
> privacy):
>
> To:  "Anonymous" <sip:2160000000nwytww{e8b\valid>;tag=as12c6b8f1
>
>
> Opensips then throws up some errors about this header:
>
>  ERROR:core:parse_to: unexpected char [\] in status 6: <<"Anonymous"
> <sip:2160000000nwytww{e8b>> .
>  ERROR:core:get_hdr_field: bad to header
>  INFO:core:parse_headers: bad header field
>  ERROR:tm:t_check: reply cannot be parsed
>
>
> The original invite's From header looked like this:
>
> From: "Customer Name" <sip:2160000000 at zz.xx.cc.ww>;tag=as12c6b8f1
>
>
> The config in use is as follows:
>
> uac_replace_from("Anonymous","sip:anonymous at anonymous.invalid");
>
> This gets run if certain flags are set that indicate the call is to be
> anonymized.
>
>
> Any thoughts?
>
>
> Thanks,
> Jeff
>
>
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