(RADIATOR) Combining AuthRADIUS, Host and DefineFormattedGlobalVar

[Valentin Tumarkin]

Hi,

Today in Radiator you can use:

<AuthBy RADIUS>
     Host 192.168.1.1,192.168.1.2
</AuthBy>

and

DefineFormattedGlobalVar   ONE_RADIUS_HOST  192.168.1.1
<AuthBy RADIUS>
     Host %{GlobalVar:ONE_RADIUS_HOST}
</AuthBy>

or:

DefineFormattedGlobalVar   ONE_RADIUS_HOST  192.168.1.1
DefineFormattedGlobalVar   ANOTHEr_RADIUS_HOST  192.168.1.2

<AuthBy RADIUS>
     Host %{GlobalVar:ONE_RADIUS_HOST}
     Host %{GlobalVar:ANOTHER_RADIUS_HOST}
</AuthBy>


However the following will fail:

DefineFormattedGlobalVar   MANY_RADIUS_HOSTS  192.168.1.1,192.168.1.2
<AuthBy RADIUS>
     Host %{GlobalVar:MANY_RADIUS_HOSTS}
</AuthBy>

When the last configuration can be useful -
Imagine a scenario when there are multiple Radiator installations
(e.g: lab and production).
Configuration is split in two parts - global and site-specific
configuration files. Site-specific configuration files use GlobalVar's
to configure hosts/addresses.
Production installation has multiple remote RADIUS servers to proxy
to, while the lab has only one remote server.

Here's one possible AuthRADIUS fix to add support for this:

sub addHosts
{
    my ($self, $name, $file, @args) = @_;

    # Original version:
    # map {$self->addHost($_, $file, @args)} (split(/\s*,\s*/, $name));

    # Modified to support multiple hosts defined via GlobalVar
    map {$self->addHost($_, $file, @args)}
        split(/\s*,\s*/, &Radius::Util::format_special($name));
}


Regards,
Valentin

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