(RADIATOR) delete_attr('User-Name') in PreClientHook

[Camilo Echeverry]

Hi Toomas

when you rewrite the username, the NAS does not know about this, so in the
accounting requests it sends the mac address again as username.
one recomendation is to keep track of the MAC and username in a sepparate
table and rewrite the accounting username based on that table.


On 2/22/06, Toomas Kärner <tomkar at estpak.ee> wrote:
>
> Hi,
>
> For some reason I'm unable to remove User-Name attribute from incoming
> Acct-Request with PreClientHook:
> sub {
> my $p = ${$_[0]};
> my $mac_username = $p->getUserName;
>     if ($mac_username) {
>         $p->delete_attr('User-Name');
>         $p->add_attr('ETC-Mac',$mac_username);
>         &main::log($main::LOG_DEBUG,"Username attribute with value
> $mac_username stripped and put into ETC-Mac");
>     }
> }
>
> Setup goes like this:
> Redback SE sends it CLIPS accounting :
> *** Received from x.x.x.x port 1812 ....
> Code:       Accounting-Request
> Identifier: 177
> Authentic:  p$<226>!G<226><17><249>81<18>5<202>Ho=
> Attributes:
>         User-Name = "00:0b:cd:8c:61:ed"
>         Acct-Status-Type = Stop
>         Acct-Session-Id = "0001FFFF780001D3-43140C10"
>         Class = "127828"
>         .
>         .
>
> For that NAS, MAC is the user since it does not know any better...
> Now I want to remove this username attribute and with PreClientHook
> and insert a real username based on information from sessionDB like
> this:
> <AuthBy SQL>
>         Identifier GetDataFromSession
>         DBSource        dbi:mysql:xx:x.x.x.x
>         DBUsername      xxx
>         DBAuth          xxx
>         AuthenticateAccounting
>         AuthSelect      SELECT \
>                         username \
>                         from wnsession where \
>                         class_id = '%{Class}'
>         AuthColumnDef   0,      User-Name, request
>         NoDefault
> </AuthBy SQL>
>
> But for some reason I still get the MAC later into accounting as the
> username.
>
> I have some workarounds but I dont like them very much and I got
> interested what I'm doing wrong...
>
> Rgds.
> Toomas
>
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