Switch State Machine

There are two types of switch state machines, peer switch state machine and authenticator switch state machine. Both peer and authenticator state machines have the following attributes in common.

• A method state machine (see Method State Machine).

• An authentication policy that is used for creating a method state machine of a particular EAP (authentication) method and describes rules on how and by which order each (authentication) method is performed to complete an EAP conversation. Authentication policy is explained in Authentication Policy.

• A set of callback functions that are defined by applications and called when the switch state machine needs to pass an asynchrounous event and optional information associated with the event to the applications. The callback functionality is described in callback.

In the libeap library, a method state machine is defined as an attribute of a switch state machine.

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