Dynamic session timeout

[Alan DeKok]

On Nov 1, 2018, at 12:01 AM, Sam T <givemesam at gmail.com> wrote:
> As an update, we are aiming for getting the actual Session-Timeout value
> from the reply or the difference in seconds between now() and the
> WISPr-Session-Terminate-Time - Whichever value is smaller
> 
> Here is the new output
> 
> Any tips would be much appreciated!
> 
> 
> ///
> Login OK: [22-22-22-22-22-11/password] (from client wificpa port 0)
> # Executing section post-auth from file
> /etc/freeradius/sites-enabled/wifirush.rad
> +- entering group post-auth {...}
> ++? if (reply:WISPr-Session-Terminate-Time)
> ? Evaluating (reply:WISPr-Session-Terminate-Time) -> TRUE
> ++? if (reply:WISPr-Session-Terminate-Time) -> TRUE
> ++- entering if (reply:WISPr-Session-Terminate-Time) {...}
>        expand: %{reply:WISPr-Session-Terminate-Time} - %l ->
> 2000-11-01T12:22:23+00:00 - 1541009986

  OK, i't sprinting the session terminate time as a full date string.  You can fix that by using:

	%{expr:%{%{integer:reply:WISPr-Session-Terminate-Time}} - %l}

  Which will print it as an integer.

>        WISPr-Session-Terminate-Time = "2000-11-01T12:22:23+00:00"

  Note *also* that the termination year is 2000, or 18 years in the past.  That has to be fixed, too.  It MUST be in the future, otherwise the Session-Timeout will again be wrong.

  Alan DeKok.