[SR-Users] Local messages are malformed in Kamailio 4.4.X

[Daniel-Constantin Mierla]

Hello,

have you set modparams for tm module related to reparsing the invite or
on dns failover?

The build_local() should be used only in some specific cases and want to
be sure it doesn't get executed somehow when it shouldn't be.

Cheers,
Daniel


On 30/11/2016 16:40, Helio Okuyama wrote:
> Local messages are malformed in Kamailio 4.4.X. For example after
> receiving an error response (603) to an INVITE message, the ACK is
> generated with header Max-Forwards concatenated to header CSeq and
> double CRLF, which is wrong.
>
> Via: SIP/2.0/TLS
> 173.16.10.61:5061;branch=z9hG4bKc782.5b960c7c48a4363a0126963daa797eb0.0;i=7
> From: "22861"<sip:22861 at 173.16.10.61
> <mailto:sip%3A22861 at 173.16.10.61>;transport=tls>;tag=snl_OIPEOzJUNy
> Call-ID: 61b500a71b510a1Pj61qq1k9dPW
> To: <sip:551138174108 at 174.16.4.108:5061;transport=tls>;tag=435012226
> CSeq: 2351 ACKMax-Forwards: 70
>
> User-Agent:...
>
>
> The fix for that seems to be just the order of append_str in function
> build_local() from tm\t_msgbuilder.c.
>
> append_str( p, method, method_len );
> +append_str( p, CRLF, CRLF_LEN );
> append_str( p, MAXFWD_HEADER, MAXFWD_HEADER_LEN );
> -append_str( p, CRLF, CRLF_LEN );
>
>
>
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-- 
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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