API

Nuauth

Here’s the life of a packet inside nuauth :

Modules coding

Modules can provide three functions :

 user_check : a function getting the password of a user and the groups he belongs to.
 acl_check : a function getting the corresponding access control list for a packet.
 user_packet_logs : a function logging user activities.

user_check

The declaration of user_check is the following :

GSList * user_check (u_int16_t userid,char *passwd);

It takes an integer and a pointer to the zone allocated to contain the password of the user as parameters and returns the list of a pointer to a GSList of integer, each integer being the number of a group the user belongs to.

The pointer passwd must contain the password of the user.

acl_check

The declaration of acl_check is the following :

GSList * acl_check (connection* element);

It takes a connection as parameters and returns a GSList of struct acl_group [1].

user_packet_logs

The declaration of user_packet_logs is the following :

gint user_packet_logs (connection element, int state);

It takes a connection and a state as parameters and return an int indicating status of the logging operation. state can take the following values :

 STATE_OPEN : log a connection opening (SYN_SENT for TCP).
 STATE_ESTABLISHED : log a connection establishment.
 STATE_CLOSE : log ending of a connection.
 STATE_DROP : log a connection rejected by the nufw system.