#!/usr/bin/perl
#
# ip-down
# 
# Script started when the PPP daemon disconnects.
#

use strict;
use GDBM_File;


#### RADIUS Begins

my ($sessionid, $username, $port, $portid, $timeout) = split (/:/, $ARGV[5]);

if ($sessionid) 
{
# Code to inform the server that we're getting out.

# Port information database.
    my $path_portinfo = "/var/ipoint/acct/portinfo"; 


# Radius accounting record generator.
    my $prog_radacct = "/usr/local/lib/radiusclient/radacct";

# The session ID, username, raw port and ID are given to this script 
# through the ipparam parameter of pppd 2.2.0e and above.

# Generate the accounting entry, and hand it over to RADIUS.

# Delete the port info entry since the user has logged off, but make use
# of the starting time.
    my (%s, @e, $sessiontime);
    tie (%s, "GDBM_File", $path_portinfo, GDBM_WRCREAT, 0600);
    @e = split (':', $s{$portid});

    if ($e[4])
    {
	$sessiontime = time() - $e[4];
    }

    delete $s{$portid};
    untie (%s);

# Generate the accounting entry, and hand it over to RADIUS.

    open  (H, "| $prog_radacct -i $port");

    my $cmd =
	"Acct-Session-ID = \"$sessionid\"\n" .
	"User-Name = \"$username\"\n" .
	"Acct-Status-Type = Stop\n" .
	"Acct-Authentic = RADIUS\n" .
	"Service-Type = Framed\n" .
	"Framed-Protocol = PPP\n" .
	"Framed-IP-Address = $ARGV[4]\n";

    if ($sessiontime)
    {
	$cmd .= "Acct-Session-Time = $sessiontime\n";
    }

    print H $cmd;
    close (H);
}

#### RADIUS Ends