Random number generation kamailio

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Cibin Paul

22 Mar 2016 22 Mar '16

8:54 a.m.

Hi, How can I generate a random number say of length 10-14 in Kamailio. Can I use cfgutils for this. Please advise Regards Cibin

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Alex Balashov

22 Mar 22 Mar

8:58 a.m.

Cibin, Yes, that is what $RANDOM is for. It returns a 32-bit signed integer (‎range 0 - 2^31), so you can divide it by the appropriate value to get something in the length range you're after. ‎ -- Alex Balashov | Principal | Evariste Systems LLC 1447 Peachtree Street NE, Suite 700 Atlanta, GA 30309 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent from my BlackBerry.

Cibin Paul

9:20 a.m.

Thanks a lot Alex, Now using this random generated number, can I modify the ANI something like this on INVITE if(!($fU=~"^(\+1|1[1-9][0-9]{10})$")) { $fU = ($RANDOM / 73249615); } Regards Cibin

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On 22-Mar-2016, at 12:28 PM, Alex Balashov <abalashov(a)evaristesys.com> wrote: Cibin, Yes, that is what $RANDOM is for. It returns a 32-bit signed integer (‎range 0 - 2^31), so you can divide it by the appropriate value to get something in the length range you're after. ‎ -- Alex Balashov | Principal | Evariste Systems LLC 1447 Peachtree Street NE, Suite 700 Atlanta, GA 30309 United States Tel: +1-800-250-5920 (toll-free) / +1-678-954-0671 (direct) Web: http://www.evaristesys.com/, http://www.csrpswitch.com/ Sent from my BlackBerry. _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

Daniel-Constantin Mierla

9:20 a.m.

Hello, besides $RANDOM from cfgutils as pointed already, you can use an embedded interpreter (e.g., app_lua is really fast). If you need some unique values, but not only numbers, see uuid module. Cheers, Daniel On 22/03/16 07:54, Cibin Paul wrote:

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Hi, How can I generate a random number say of length 10-14 in Kamailio. Can I use cfgutils for this. Please advise Regards Cibin _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com

Cibin Paul

9:40 a.m.

Thanks Daniel, I will try app_lua as you said this being faster compared to $RANDOM. Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU? Regards Cibin

...

On 22-Mar-2016, at 12:50 PM, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: Hello, besides $RANDOM from cfgutils as pointed already, you can use an embedded interpreter (e.g., app_lua is really fast). If you need some unique values, but not only numbers, see uuid module. Cheers, Daniel On 22/03/16 07:54, Cibin Paul wrote:

-- Daniel-Constantin Mierla http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

Daniel-Constantin Mierla

9:43 a.m.

On 22/03/16 08:40, Cibin Paul wrote:

...

Thanks Daniel, I will try app_lua as you said this being faster compared to $RANDOM.

I didn't say that app_lua is faster than $RANDOM -- what I said is that app_lua is also fast.

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Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU?

Yes, look also at uac module for functions to replace From URI. Cheers, Daniel

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Regards Cibin > On 22-Mar-2016, at 12:50 PM, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: > > Hello, > > besides $RANDOM from cfgutils as pointed already, you can use an > embedded interpreter (e.g., app_lua is really fast). > > If you need some unique values, but not only numbers, see uuid module. > > Cheers, > Daniel > > On 22/03/16 07:54, Cibin Paul wrote: >> Hi, >> >> How can I generate a random number say of length 10-14 in Kamailio. Can I use cfgutils for this. Please advise >> >> Regards >> Cibin >> >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >> sr-users(a)lists.sip-router.org >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > -- > Daniel-Constantin Mierla > http://www.asipto.com > http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda > Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users(a)lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com

Cibin Paul

9:49 a.m.

Thanks Daniel for the pointer. I will check both modules Regards Cibin

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On 22-Mar-2016, at 1:13 PM, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: On 22/03/16 08:40, Cibin Paul wrote:

Thanks Daniel, I will try app_lua as you said this being faster compared to $RANDOM.

I didn't say that app_lua is faster than $RANDOM -- what I said is that app_lua is also fast.

Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU?

Yes, look also at uac module for functions to replace From URI. Cheers, Daniel

-- Daniel-Constantin Mierla http://www.asipto.com <http://www.asipto.com/> http://twitter.com/#!/miconda <http://twitter.com/#!/miconda> - http://www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com <http://www.kamailioworld.com/>

Cibin Paul

23 Mar 23 Mar

12:03 p.m.

Daniel, I tried using $RANDOM. It is always giving a random value between 9 digits to 10 digits How can I get a random value between 10 digits to 13 digits. Regards Cibin

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On 22-Mar-2016, at 1:19 PM, Cibin Paul <paul_cibin(a)me.com> wrote: Thanks Daniel for the pointer. I will check both modules Regards Cibin > On 22-Mar-2016, at 1:13 PM, Daniel-Constantin Mierla <miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: > > > > On 22/03/16 08:40, Cibin Paul wrote: >> Thanks Daniel, >> >> I will try app_lua as you said this being faster compared to $RANDOM. > I didn't say that app_lua is faster than $RANDOM -- what I said is that > app_lua is also fast. > >> >> Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU? > > Yes, look also at uac module for functions to replace From URI. > > Cheers, > Daniel >> >> Regards >> Cibin >> >> >> >>> On 22-Mar-2016, at 12:50 PM, Daniel-Constantin Mierla <miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: >>> >>> Hello, >>> >>> besides $RANDOM from cfgutils as pointed already, you can use an >>> embedded interpreter (e.g., app_lua is really fast). >>> >>> If you need some unique values, but not only numbers, see uuid module. >>> >>> Cheers, >>> Daniel >>> >>> On 22/03/16 07:54, Cibin Paul wrote: >>>> Hi, >>>> >>>> How can I generate a random number say of length 10-14 in Kamailio. Can I use cfgutils for this. Please advise >>>> >>>> Regards >>>> Cibin >>>> >>>> >>>> >>>> _______________________________________________ >>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>>> sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> >>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users >>> -- >>> Daniel-Constantin Mierla >>> http://www.asipto.com <http://www.asipto.com/> >>> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda >>> Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com >>> >>> >>> _______________________________________________ >>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>> sr-users(a)lists.sip-router.org >>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla > http://www.asipto.com <http://www.asipto.com/> > http://twitter.com/#!/miconda <http://twitter.com/#!/miconda> - http://www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> > Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com <http://www.kamailioworld.com/>

Cibin Paul

1:19 p.m.

The problem is not with RANDOM. $fU is not taking more than 10 digit number. What could be the reason? $var(x) = 123456789012; $fU = $var(x); uac_replace_from("$var(x)","”); The above code is assigning cli with 2147483647. Could you please help me on this Regards Cibin

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On 23-Mar-2016, at 3:33 PM, Cibin Paul <paul_cibin(a)me.com> wrote: Daniel, I tried using $RANDOM. It is always giving a random value between 9 digits to 10 digits How can I get a random value between 10 digits to 13 digits. Regards Cibin

On 22-Mar-2016, at 1:19 PM, Cibin Paul <paul_cibin(a)me.com> wrote: Thanks Daniel for the pointer. I will check both modules Regards Cibin

On 22-Mar-2016, at 1:13 PM, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: On 22/03/16 08:40, Cibin Paul wrote:

Thanks Daniel, I will try app_lua as you said this being faster compared to $RANDOM.

I didn't say that app_lua is faster than $RANDOM -- what I said is that app_lua is also fast.

Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU?

Yes, look also at uac module for functions to replace From URI. Cheers, Daniel

-- Daniel-Constantin Mierla http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com

_______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users(a)lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

Daniel Tryba

7 p.m.

On Wed, Mar 23, 2016 at 04:49:09PM +0530, Cibin Paul wrote:

...

$var(x) = 123456789012; $fU = $var(x); uac_replace_from("$var(x)","”); The above code is assigning cli with 2147483647. Could you please help me on this

Seeing the value 2147483647 should trigger some neurons (it is 2^31-1) from now on. You are looking at the wrapping of signed 32bit integers where 2^31-1 is the max value. The workaround for these kind of problems is handling the values as string instead of integers/longs/whatever numeric with contrained storage space (like Daniel suggested).

Daniel-Constantin Mierla

1:19 p.m.

The $random gives an integer value, so max length is 10. Actually, vars in config file can be either integer or string. If you want a larger length you can build it as tring from two other random values. Like: $var(r1) = $RANDOM; $var(r2) = $RANDOM; $var(largerandom) = "" + $var(r1) + $var(r2); Note the empty string "" used as first element in the right side of the above assignment -- that will make the result to be string, otherwise will be another int, rounded after overflow. To get string from concatenating two integers you can use alternatives as pv_printf(...) or $_s(...). Cheers, Daniel On 23/03/16 11:03, Cibin Paul wrote:

...

Daniel, I tried using $RANDOM. It is always giving a random value between 9 digits to 10 digits How can I get a random value between 10 digits to 13 digits. Regards Cibin

On 22-Mar-2016, at 1:19 PM, Cibin Paul <paul_cibin(a)me.com <mailto:paul_cibin@me.com>> wrote: Thanks Daniel for the pointer. I will check both modules Regards Cibin

On 22-Mar-2016, at 1:13 PM, Daniel-Constantin Mierla <miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: On 22/03/16 08:40, Cibin Paul wrote:

Thanks Daniel, I will try app_lua as you said this being faster compared to $RANDOM.

I didn't say that app_lua is faster than $RANDOM -- what I said is that app_lua is also fast.

Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU?

Yes, look also at uac module for functions to replace From URI. Cheers, Daniel

Regards Cibin > On 22-Mar-2016, at 12:50 PM, Daniel-Constantin Mierla > <miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote: > > Hello, > > besides $RANDOM from cfgutils as pointed already, you can use an > embedded interpreter (e.g., app_lua is really fast). > > If you need some unique values, but not only numbers, see uuid module. > > Cheers, > Daniel > > On 22/03/16 07:54, Cibin Paul wrote: >> Hi, >> >> How can I generate a random number say of length 10-14 in >> Kamailio. Can I use cfgutils for this. Please advise >> >> Regards >> Cibin >> >> >> >> _______________________________________________ >> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users >> mailing list >> sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users > -- > Daniel-Constantin Mierla > http://www.asipto.com <http://www.asipto.com/> > http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - > http://www.linkedin.com/in/miconda > Kamailio World Conference, Berlin, May 18-20, 2016 - > http://www.kamailioworld.com > > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing > list > sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla http://www.asipto.com <http://www.asipto.com/> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com <http://www.kamailioworld.com/>

-- Daniel-Constantin Mierla http://www.asipto.com http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com

Cibin Paul

1:26 p.m.

Perfect. That solved my issue. You are saviour Thanks & Regards Cibin

...

On 23-Mar-2016, at 4:49 PM, Daniel-Constantin Mierla <miconda(a)gmail.com> wrote: The $random gives an integer value, so max length is 10. Actually, vars in config file can be either integer or string. If you want a larger length you can build it as tring from two other random values. Like: $var(r1) = $RANDOM; $var(r2) = $RANDOM; $var(largerandom) = "" + $var(r1) + $var(r2); Note the empty string "" used as first element in the right side of the above assignment -- that will make the result to be string, otherwise will be another int, rounded after overflow. To get string from concatenating two integers you can use alternatives as pv_printf(...) or $_s(...). Cheers, Daniel On 23/03/16 11:03, Cibin Paul wrote:

Daniel, I tried using $RANDOM. It is always giving a random value between 9 digits to 10 digits How can I get a random value between 10 digits to 13 digits. Regards Cibin

On 22-Mar-2016, at 1:19 PM, Cibin Paul < <mailto:paul_cibin@me.com>paul_cibin@me.com <mailto:paul_cibin@me.com>> wrote: Thanks Daniel for the pointer. I will check both modules Regards Cibin > On 22-Mar-2016, at 1:13 PM, Daniel-Constantin Mierla < <mailto:miconda@gmail.com>miconda@gmail.com <mailto:miconda@gmail.com>> wrote: > > > > On 22/03/16 08:40, Cibin Paul wrote: >> Thanks Daniel, >> >> I will try app_lua as you said this being faster compared to $RANDOM. > I didn't say that app_lua is faster than $RANDOM -- what I said is that > app_lua is also fast. > >> >> Now if I want to modify the caller id number (ANI) , can I assign the newly generated number to the variable $fU? > > Yes, look also at uac module for functions to replace From URI. > > Cheers, > Daniel >> >> Regards >> Cibin >> >> >> >>> On 22-Mar-2016, at 12:50 PM, Daniel-Constantin Mierla < <mailto:miconda@gmail.com>miconda@gmail.com <mailto:miconda@gmail.com>> wrote: >>> >>> Hello, >>> >>> besides $RANDOM from cfgutils as pointed already, you can use an >>> embedded interpreter (e.g., app_lua is really fast). >>> >>> If you need some unique values, but not only numbers, see uuid module. >>> >>> Cheers, >>> Daniel >>> >>> On 22/03/16 07:54, Cibin Paul wrote: >>>> Hi, >>>> >>>> How can I generate a random number say of length 10-14 in Kamailio. Can I use cfgutils for this. Please advise >>>> >>>> Regards >>>> Cibin >>>> >>>> >>>> >>>> _______________________________________________ >>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>>> sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> >>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >>> -- >>> Daniel-Constantin Mierla >>> http://www.asipto.com <http://www.asipto.com/> >>> http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - http://www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> >>> Kamailio World Conference, Berlin, May 18-20, 2016 - http://www.kamailioworld.com <http://www.kamailioworld.com/> >>> >>> >>> _______________________________________________ >>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>> sr-users(a)lists.sip-router.org <mailto:sr-users@lists.sip-router.org> >>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users <http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> > > -- > Daniel-Constantin Mierla > http://www.asipto.com <http://www.asipto.com/> > http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda> - <http://www.linkedin.com/in/miconda>http://www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda> > Kamailio World Conference, Berlin, May 18-20, 2016 - <http://www.kamailioworld.com/>http://www.kamailioworld.com <http://www.kamailioworld.com/>

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participants (4)

Alex Balashov
Cibin Paul
Daniel Tryba
Daniel-Constantin Mierla