Author image PortaOne, Inc.
and 2 contributors


Data::Radius::Packet - module to encode/decode RADIUS messages


    use Data::Radius::Constants qw(:all);
    use Data::Radius::Packet;

    my $dictionary = Data::Radius::Dictionary->load_file('./radius/dictionary');
    my $packet = Data::Radius::Packet->new(secret => 'top-secret', dict => $dictionary);

    # build request packet:
    my ($request, $req_id, $authenticator) = $packet->build(
        type => ACCESS_REQUEST,
        av_list => [
            { Name => 'User-Name', Value => 'JonSnow'},
            { Name => 'User-Password', Value => 'Castle Black' },
            { Name => 'Message-Authenticator', Value => '' },

    # ... send $request and read $reply binary packets from RADIUS server

    # parse reply packet:
    my ($reply_type, $reply_id, $reply_authenticator, $av_list) = $packet->parse($reply, $authenticator);


The Data::Radius::Packet module provides a methods to encode/decode RADIUS messages. It can be used to implement both Radius client or Radius server.


new ( secret => SECRET, dict => DICTIONARY )

Create a new object. All arguments are optional. Dictionary is object of Data::Radius::Dictionary which allow to use attribute names instead of codes. Secret is global secret string, can be overrided when building a new packet.


build ( type => CODE, av_list => AVLIST, [ authenticator => AUTH ], [ dict => DICTIONARY ], [ secret => SECRET ], [ with_msg_auth => BOOL ], [ request_id => BYTE ])

Build a binary-encoded RADIUS packet.

type identify type of RADIUS request. They are defined in Data::Radius::Constants.

av_list is ARRAY-REF of attributes, each defined as HASH-REF with keys {Name, Value, [Tag]} or {Id, [VendorId], Value} Tagged attributes can be also specified using 'Name:Tag' format.

authenticator is optional for request (by default the random value will be used), but required for replies.

secret and dict can be used to override values from constructor (for example to use individual secrets for different Radius servers).

with_msg_auth can be passed to append Message-Authenticator attribute. It also can be archived by adding this attribyte to AV list with empty value Note that this attribute usually must not be used for ACCOUNTING requests.

request_id - allow to define own it. By default internal sequence is used. Value must be in range 0-255 (1byte)

parse ($radius_packet, [$request_authenticator])

Parse binary-encoded RADIUS packet to list of attributes

Returns multiple values: RADIUS code, request id, authenticator, ARRAY-REF of attributes

request_id ($radius_packet)

Returns request id from packet without parsing it's attribues. Can be used to choose request authenticator before parsing the response packet in full.


Data::Radius::Constants, Data::Radius::Dictionary


Sergey Leschenko < at>

PortaOne Development Team <perl-radius at> is the current module's maintainer at CPAN.