Re: [SR-Users] Critical log when $mbu pseudovariable is accessed

You have to use $mbu before record_route() because the outgoing socket is not known and corresponding Record-Route header is added with empty address. Same apply for use of msg_apply_changes().

Cheers, Daniel

On 08.10.21 08:28, Alberto Izquierdo wrote:

It is also worth mentioning that there are two Record-Route headers, the first one is the correct one and contains a valid value, and this extra one which does not appear in the egress INVITE in the pcap.

On Thu, Oct 7, 2021 at 9:18 AM Alberto Izquierdo <a.izquierdo@zaleos.net mailto:a.izquierdo@zaleos.net> wrote:

Hello Daniel,

I have just realized about an error in the 'Record-Route" header:
"Record-Route: <sip:;r2=on;lr=on;ftag=478.0eb>".

Thanks for the response.

On Thu, Oct 7, 2021 at 9:05 AM Daniel-Constantin Mierla
<miconda@gmail.com <mailto:miconda@gmail.com>> wrote:

    Hello,

    in onsend_route the changes are already applied, use of $mbu
    makes no sense there -- you can see the updated buffer content
    with $snd(buf).

    Cheers,
    Daniel

    On 06.10.21 11:43, Alberto Izquierdo wrote:

...

    Hi,

    I'm getting some CRITICAL logs when accessing the content of
    the $mbu pseudovariable in a "onsend_route" function. The log
    lines look like this:

    ```
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:893 FIXME: null
    send_sock
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:1479 FIXME: null
    bind_address
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    CRITICAL core    35847:core/msg_translator.c:493 null send socket
    ```

    I've checked the msg_translator.c source file and there are
    many of `LM_CRIT("FIXME: {message}\n");` calls, and I wonder
    if the "FIXME" tag relates to the location of the error: a
    Kamailio error or there is an issue in the user code.

    Could I have more information about the "FIXME" tag?

    Thanks in advance!

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