Greetings,
Still wondering how to convert DSL interum updates to standard dail-up
type radius accounting.
I've done some digging through the source code, and have decided that
perhaps I need to create a module, perhaps "rlm_alive_to_dialup". If
the new module was based on rlm_detail, it would just be a matter of
linking to a mysql database to see the last update, calculate the
difference, then generate the new radius packets, for start and stop.
I'm also wondering if this should be part of the proxy (which seems to
be in the realm code) functionality, eg. Make the proxy feature break
RFC and allow it to modify the 'alive' and create a 'start' and
a 'stop'.
Any thoughts on whether it should be a seperate module or a
modification to the proxy code?
thanks,
Dave Seddon
----- Original Message -----
From: Dave Seddon <[EMAIL PROTECTED]>
Date: Saturday, January 25, 2003 4:20 pm
Subject: DSL Accouting?
> Greetings,
>
> I'm new to the list. I have two issues:
> -Problem logging accounting
> -Alive packet processing and integration with dial-up billing
>
> I use Freeradius(7.0) with MySQL(3.23.54) on FreeBSD(4.7) to
> authenticate lots of xDSL PPP sessions via an L2TP tunnel
> terminated on
> a big Cisco box. It works very well, however for some reason
> accounting records do not get put in the 'radacct' mysql table.
> There
> are some records in the table, but no where near as many as their
> should be since Interim updates or Alive packets get sent by the
> Cisco
> every 10 minutes. However I do get all the accouting records
> in /var/log/radacct/ip_address/detail.
>
> Here is some of the /usr/local/etc/raddb/radius.conf. The
> accounting
> section seems correct. The sql.conf is untouched from the example
> (except for the password and username).
> ----------------------------------------
> authorize {
> preprocess
> suffix
> sql
> files
> }
> authenticate {
> }
> preacct {
> preprocess
> suffix
> files
> }
> accounting {
> detail
> # unix
> sql
> radutmp
> }
> ----------------------------------------
> So what could be wrong?
>
> To see what data I was getting in the detail log, I wote a little
> perl
> script to parse the detail log and stick the data in MySQL so I
> could
> easily do select statements. I discovered that the records I
> created
> where structured differently, so perhaps that's why it's not going
> to
> the Freeradius radacct table? Essentially, the difference is
> the "Tunnel" attributes.
>
> The database structure I created is:
> -----------------------------
> drop database radiusaccounting;
> create database radiusaccounting;
> use radiusaccounting;
>
> CREATE TABLE radacct (
> RadAcctId int unsigned NOT NULL auto_increment,
> NASIPAddress varchar(15) NOT NULL default '',
> NASPortId tinyint unsigned default NULL,
> NASPortType varchar(32) default NULL,
> UserName varchar(64) NOT NULL default '',
> AcctStatusType varchar(20) NOT NULL default '',
> AcctAuthentic varchar(20) NOT NULL default '',
> ServiceType varchar(32) default NULL,
> AcctSessionID varchar(12) NOT NULL default '',
> FramedProtocol varchar(6) default NULL,
> TunnelServerEndpoint varchar(15) NOT NULL default '',
> TunnelClientEndpoint varchar(15) NOT NULL default '',
> TunnelType varchar(10) NOT NULL default '',
> TunnelClientAuthID varchar(25) NOT NULL default '',
> TunnelServerAuthID varchar(25) NOT NULL default '',
> AcctTunnelConnection int unsigned default NULL,
> FramedIPAddress varchar(15) NOT NULL default '',
> AcctInputOctets int unsigned default NULL,
> AcctOutputOctets int unsigned default NULL,
> AcctInputPackets int unsigned default NULL,
> AcctOutputPackets int unsigned default NULL,
> AcctSessionTime int unsigned default NULL,
> AcctDelayTime int unsigned default NULL,
> ClientIPAddress varchar(15) NOT NULL,
> TimeStamp bigint unsigned default NULL,
> HumanTime varchar(10) default NULL,
> PRIMARY KEY (RadAcctId),
> KEY UserName (UserName)
> );
> ---------------------
>
> So I've kind of solved the problem of getting the accouting data
> into
> the MySQL database, however it's a bit crap cos I need to process
> the
> logs with a cron job, instead of automatically inserting from
> FreeRadius.
>
> My company has lots of dialup also, and an ISP billing system
> called
> Extent (with built in radius) that works fine fo these dialup
> customers, however is unaware of 'Alive' packets. I'd really like
> to
> feed the accounting data from Freeradius to the Extent billing
> package. I'm thinking that for every "Alive" packet recieved from
> the
> RAS box perhaps I could calculate the difference in Octets between
> now
> and the last 'Alive', and then send a fake radius start and stop
> record
> to Extent, such that Extent would think the DSL user had dialed up
> for
> 10 minutes, used X amount of data, and hungup. This way the
> standard
> way of calculating usage would occur, and usage graphs, etc, would
> all
> work fine. It would be very nice to build this functionality into
> Freeradius. -- Perhaps I should email the developers list about
> how to
> do this?
>
> thanks,
>
> Dave Seddon
>
>
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