WiFi direct protocol specifications

[stern0m1]

Sorry, if this is off topic. I dont know where else to ask this and I know there are very educated people over here.

Im trying to research the wifi direct protocol but im having trouble finding the detailed specifications.

I looking for the makeup of the frames. Beacon/probe request/probe response.

The documents over here http://www.wi-fi.org/discover-wi-fi/wi-fi-direct expresses the details in high level without getting into the low level packet/frame info.

Anyone know where I could find this? At least could someone direct me to a forum that I could post this question to.

Separate related question, are the available services broadcast in the beacons or you have to ask and get a response?

Thanks