Custom Access Control

The ACL file is the default access control mechanism in the SNMP adaptor. The SnmpAdaptorServer class has constructors that let you specify your own access control mechanism. For example, if your agent runs on a device with no file system, you could implement a mechanism which doesn't rely on the jdmk.acl file.

Your access mechanism must be a class that implements the IPAcl interface. This interface specifies the methods that the SNMP adaptor uses to check permissions when processing a request. If you instantiate the SNMP adaptor with your access control class, the adaptor will call your implementation of the access control methods.

The JdmkAcl class implements the default access mechanism that uses an ACL file. It is also an implementation of the IPAcl interface. By default, the SNMP adaptor will use this implementation if no other is passed to its constructor.