BLE Peripheral reads RSSI of Central (Possible?)

[sideridispas]

Hello everyone!
I am currently developing an ESP-32 based device, with BLE peripheral role functionalities, and one of the tasks requires the proximity (mainly the rssi value) of the central device.

So my questions are:

1. Is it possible -in general- for a peripheral device, to acquire the rssi value of the central device? If so, are we using the same scan_result->scan_rst.rssi method?
2. If rssi acquisition is possible, it has to be carried out only before connection (during gap) or also after creating the connection with the central? (in gatt)

I have not added more details about my project, in order to keep the question simple & general enough for others to use too.
But if you need more information, I would be happy to let you know more

Thanks!