[SR-Users] SIPT append_body_part \x00 how to?..

[Daniel-Constantin Mierla]

I pushed append_body_part_hex() function in master branch, which expects
the parameter in hexa format and it will decode it before adding it as a
body part. Can you test the function and see if it works ok?

Cheers,
Daniel


On 05.04.18 09:32, Daniel-Constantin Mierla wrote:
>
>
>
> On 05.04.18 09:19, Sergey Basov wrote:
>>
>> > Are you doing msg_apply_changes before use of sipt_destination()?
>>
>> Yes I do.
>>
>> > Why you had to do changes inside sipt module and not inside
>> append_body_part()?
>> I have added line to debug append_body_part() function and it
>> receives string till first \x00 in input...
>>
>> May be this problem goes from configuration parser? Can it parse \x00
>> as end of value?
>>
>> I make change in sipt module because I create ISUP part with replaced
>> \x00 by \x01 in 3 places.
>> I know where they are incorrect, so I can change them to 00 while
>> changing number using sipt_destination()
> OK.
>
> I haven't looked at the code to see how the config parser handles this
> case, could be what you said.
>
> A solution might be to add a new function append_body_part_hex(...)
> where the parameter is given in hexadecimal without escaping and the
> conversion to binary is done inside the code of the function. Like:
>
> append_body_part("01 90 00 20")
>
> Spaces can be omitted or ignored.
>
> Cheers,
> Daniel
>
>>
>>
>> --
>> Best regards,
>> Sergey Basov                     e-mail: sergey.v.basov at gmail.com
>> <mailto:sergey.v.basov at gmail.com>
>>
>> 2018-04-05 8:20 GMT+03:00 Sergey Basov <sergey.v.basov at gmail.com
>> <mailto:sergey.v.basov at gmail.com>>:
>>
>>     Hi Daniel,
>>
>>     I think that kamailio while reading configuration think that \x00
>>     character is the end of string..
>>
>>     --
>>     Best regards,
>>     Sergey Basov                     e-mail: sergey.v.basov at gmail.com
>>     <mailto:sergey.v.basov at gmail.com>
>>
>>     2018-04-04 19:47 GMT+03:00 Daniel-Constantin Mierla
>>     <miconda at gmail.com <mailto:miconda at gmail.com>>:
>>
>>         Hello,
>>
>>         I haven't looked at the source code, but it looks like it
>>         needs some options to make it work with zero characters.
>>
>>         Why you had to do changes inside sipt module and not inside
>>         append_body_part()?
>>
>>         Are you doing msg_apply_changes before use of sipt_destination()?
>>
>>         Cheers,
>>         Daniel
>>
>>
>>         On 04.04.18 16:19, Sergey Basov wrote:
>>>         Hi All.
>>>
>>>         Does nobody have any idea how to avoid this?
>>>
>>>         Thank you.
>>>
>>>         --
>>>         Best regards,
>>>         Sergey Basov                     e-mail:
>>>         sergey.v.basov at gmail.com <mailto:sergey.v.basov at gmail.com>
>>>
>>>         2018-04-03 17:07 GMT+03:00 Sergey Basov
>>>         <sergey.v.basov at gmail.com <mailto:sergey.v.basov at gmail.com>>:
>>>
>>>             Hi All!
>>>
>>>             I have some troubles with encoding hex string to use as
>>>             ISUP part.
>>>
>>>             I have next line:
>>>
>>>             append_body_part("\x01\x10\x48*\x00*\x0a*\x00*\x02\x09\x07\x03\x90\x90\x13\x71\x32\x20\x0a\x04\x02\x13\x73\x12*\x00*","application/isup;version=itu-t92+","signal;handling=optional");
>>>
>>>             Problem is in the *\x00 *kamailio reads this string till
>>>             first \x00
>>>
>>>             May be there is some workaround?
>>>
>>>             Currently I have added some C code into SIPT module to
>>>             change values in this pisitions first to 00 then make
>>>             other changes.
>>>
>>>             My current input string is
>>>             append_body_part("\x01\x10\x48*\x01*\x0a*\x01*\x02\x09\x07\x03\x90\x90\x13\x71\x32\x20\x0a\x04\x02\x13\x73\x12*\x01*","application/isup;version=itu-t92+","signal;handling=optional");
>>>
>>>             I first make replacement \x01 to \x00 while executing
>>>             sipt_destination
>>>
>>>             May be there is better solution?
>>>
>>>             Thank you.
>>>             --
>>>             Best regards,
>>>             Sergey Basov                     e-mail:
>>>             sergey.v.basov at gmail.com <mailto:sergey.v.basov at gmail.com>
>>>
>>>
>>>
>>>
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>>
>>         -- 
>>         Daniel-Constantin Mierla
>>         www.twitter.com/miconda <http://www.twitter.com/miconda> -- www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
>>         Kamailio Advanced Training - April 16-18, 2018, Berlin - www.asipto.com <http://www.asipto.com>
>>         Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com <http://www.kamailioworld.com>
>>
>>
>>
>
> -- 
> Daniel-Constantin Mierla
> www.twitter.com/miconda -- www.linkedin.com/in/miconda
> Kamailio Advanced Training - April 16-18, 2018, Berlin - www.asipto.com
> Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com

-- 
Daniel-Constantin Mierla
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training - April 16-18, 2018, Berlin - www.asipto.com
Kamailio World Conference - May 14-16, 2018 - www.kamailioworld.com

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