Hi,
The parameter to mf_process_maxfwd_header will only be added to the
message if the message did not initially contain a Max-Forwards header.
If the header exists, the default behavior is to decrement the header
value by one. Please check again the readme for the function.
[1] http://www.opensips.org/html/docs/modules/1.7.x/maxfwd.html#id249099
Regards,
Vlad
Vlad Paiu
OpenSIPS Developer
On 01/26/2012 03:05 PM, Faisal Rehman wrote:
Hi Vlad,
Okay I got the functionality of"!" symbol & also got different return
codes while testing on a local server. But I am stuck with one thing
that I am getting this in the wireshark logs either the max_valuefor
the mf_process_maxfwd_headeris 1 or 10:
564d700c00f837-1--d87543-;rport..Max-Forwards: 70..Cont
act: <sip:[email protected]:16222>..To:
"3333"<sip:[email protected]:5161>..From:
"testing"<sip:[email protected]:5161>;tag=3421ec3e..Call-ID:
ba600752f22e
9018ZjQ0MGViNzJlZTE5OTY2M2NkZjE3MWY1Nzk5ODVlNGI...CSeq: 1
INVITE..Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE,
I know that 70 is the recommended Max Forwards initial value but will
it be the same either we use max_value 1 or 10?
Regards,
Faisal Rehman
------------------------------------------------------------------------
*From:* Vlad Paiu <[email protected]>
*To:* [email protected]
*Sent:* Wednesday, January 25, 2012 7:16 PM
*Subject:* Re: [OpenSIPS-Users] Max Forward Header Function
Hi,
The '!' symbol has the same meaning as in any other programming
language, to negate the return code of the function.
So if you look at the return code of the mf_process_maxfwd_header at
[1], you will see it returns a positive return code when the
processing of the Max-Forward header succeeds, and a negative return
code if the Max-Forward value is 0 or if there was another failure.
[1] http://www.opensips.org/html/docs/modules/1.7.x/maxfwd.html#id249099
Regards,
Vlad Paiu
OpenSIPS Developer
On 01/25/2012 02:44 PM, Faisal Rehman wrote:
Hi Everybody,
I have a very tiny & crazy question but it is confusing me & I
couldn't find its accurate answer over google that why we use "!"this
before mf_process_maxfwd_header function in the main routing block. I
have also seen this symbol with other functions
like!is_method("REGISTER|MESSAGE") so what's its soul purpose?
How can I test the functionality of just the
mf_process_maxfwd_headerfunction?
Regards,
Faisal Rehman
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