How to add custom privileges to vCenter server

Hi,

We are in process of adding RBAC feature to an existing vCenter Web Client plugin. The plugin has actions and views which we want to protect using RBAC. In this context, we wanted to add our specific privileges to vCenter Server which map to the actions we have in plugin. The goal is to add these privileges programmatically and then use them in privilege definition for a given extension point.

I've searched through the API/SDK guide of vCenter server but could not find APIs to add custom privileges. Can someone point me to a direction where I can find some samples for doing the same?

Note:

1. Using existing VMware privileges is option number 2.

2. The plugin is intended to support vCenter server 5.1, 5.5 and 6.0 currently.

Any help is appreciated.

Regards

Tushar