1.3.1. OpenSER Modules

The module depends on the following modules (in the other words the listed modules must be loaded before this module):

• auth -- Generic authentication functions

1.3.2. External Libraries or Applications

The following libraries or applications must be installed before compilling OpenSER with this module loaded:

• radiusclient-ng 0.5.0 or higher -- library and development files. See http://developer.berlios.de/projects/radiusclient-ng/.

1.4.1. radius_config (string)

This is the location of the configuration file of radius client libraries.

Default value is "/usr/local/etc/radiusclient-ng/radiusclient.conf".

modparam("auth_radius", "radius_config", "/etc/radiusclient.conf")
		

1.4.2. service_type (integer)

This is the value of the Service-Type radius attribute to be used. The default should be fine for most people. See your radius client include files for numbers to be put in this parameter if you need to change it.

Default value is "15".

modparam("auth_radius", "service_type", 15)
		

1.5.1. radius_www_authorize(realm)

The function verifies credentials according to RFC2617. If the credentials are verified successfully then the function will succeed and mark the credentials as authorized (marked credentials can be later used by some other functions). If the function was unable to verify the credentials for some reason then it will fail and the script should call www_challenge which will challenge the user again.

This function will, in fact, perform sanity checks over the received credentials and then pass them along to the radius server which will verify the credentials and return whether they are valid or not.

Meaning of the parameter is as follows:

• realm - Realm is a opaque string that the user agent should present to the user so he can decide what username and password to use. Usually this is domain of the host the server is running on.

  If an empty string "" is used then the server will generate it from the request. In case of REGISTER requests To header field domain will be used (because this header field represents a user being registered), for all other messages From header field domain will be used.

  The string may contain pseudo variables.

This function can be used from REQUEST_ROUTE.

...
if (!radius_www_authorize("siphub.net")) {
	www_challenge("siphub.net", "1");
};
...

1.5.2. radius_proxy_authorize(realm)

The function verifies credentials according to RFC2617. If the credentials are verified successfully then the function will succeed and mark the credentials as authorized (marked credentials can be later used by some other functions). If the function was unable to verify the credentials for some reason then it will fail and the script should call proxy_challenge which will challenge the user again.

This function will, in fact, perform sanity checks over the received credentials and then pass them along to the radius server which will verify the credentials and return whether they are valid or not.

Meaning of the parameter is as follows:

• realm - Realm is a opaque string that the user agent should present to the user so he can decide what username and password to use. Usually this is domain of the host the server is running on.

  If an empty string "" is used then the server will generate it from the request. From header field domain will be used as realm.

  The string may contain pseudo variables.

This function can be used from REQUEST_ROUTE.

...
if (!radius_proxy_authorize("")) {
	proxy_challenge("", "1");  # Realm will be autogenerated
};
...