11.3 Guile

The name Guile stands for GNU's Ubiquitous Intelligent Language for Extensions. It provides a Scheme interpreter conforming to the R4RS language specification. This section describes use of Guile as an extension language for GNU Radius. It assumes that the reader is sufficiently familiar with the Scheme language. For information about the language, refer to section `Top' in Revised(4) Report on the Algorithmic Language Scheme. For more information about Guile, see section `Overview' in The Guile Reference Manual.

Scheme procedures can be called for processing both authentication and accounting requests. The invocation of a Scheme procedure for an authentication request is triggered by the Scheme-Procedure attribute; the invocation for an accounting request is triggered by the Scheme-Acct-Procedure attribute. The following sections address these issues in more detail.

11.3.1 Data Representation
11.3.2 Authentication with Scheme
11.3.3 Accounting with Scheme
11.3.4 Radius-Specific Functions