I have written an authentication module for mosquitto using the plug-in system. Now once the plug-in is set from the configurations I suppose it calls the mosquitto_auth_acl_check for acl authorization.
If I am to use inbuilt acl_file option along with the auth_plugin option(just for connect authentication), would it be possible?
Or am I supposed to implement the whole thing in my plug-in itself.
Current versions of mosquitto - 1.4.x and earlier - only allow the built in authentication and access control OR a plugin to be used at once. That means that what you want isn't possible.
Version 1.5 will allow multiple plugins, including the built in support.