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Originally, each list in the server is used for a specific purpose. As the server had grown in complexity, some lists have take on multiple roles.
This page documents the different roles, so that new modules can use lists consistently, and so users know where to find attributes.
The roles described below are valid for versions v4.0.x or greater, but were followed to a lesser extent in previous versions or the server.
Protocol attributes represent:
giaddrin DHCP packets).
These may be forwarded in proxied requests, or sent in response to requests (via the
These are created by the server's:
These will never be forwarded (except possibly in internal proxies), and never sent in responses.
Holds the attributes created from an externally generated (by a client), or internally proxied request.
Holds the attributes to return in response to the requests. e.g.
Holds attributes which alter the behaviour of modules, and 'check' attributes, which contain known good versions of things like User's passwords
The only list which persists between multiple requests. It is linked by the
&state attribute in the RADIUS protocol.
Attributes which need to be accessed between multiple requests, at an unknown or indeterminate time in an authentication session's life cycle should be inserted here.
A good example is
TLS-Cert-* attributes, which are created during certificate validation, but used in multiple places during the lifetime of the request (mainly post-auth and the tls-verify virtual server).
Attributes which control how the response will be sent e.g.
The result of deriving additional attributes from attributes in the request. e.g. When looking up a user's group membership, the resulting
LDAP-Group attributes (if caching is enabled) are inserted into the request list.
The results of validation requests e.g. OCSP are also inserted into this list.
The results of operations (such as querying a HTTP server) are also inserted into this list.
Last edited by Arran Cudbard-Bell (arr2036), 2018-06-13 19:52:06
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