Promiscuous Mode / RSSI

[kazu]

I have a scenario where several ESP8266 communicate with each other without being connected to an Access-Point. Furthermore I need the RSSI for every packet received by an ESP8266 (like many others do). Hereby I tried several things and got the following issues:

SDK 2.0.0
- promiscuous callback provides only 128 bytes. Why? Makes this one rather useless.
(If this is due to security concerns: Every 9$ Atheros Chip is able to do so using Unix)
- Impossible to use espconn when not being connected to an AP or being an AP itself. Why is this?
- Impossible to use netif->linkoutput when not being connected to an AP or being an AP itself

So I decided to try, whether things might work out when using a scenario where all ESP8266 connect to the same AP:
- setting the ESP to promiscuous mode prevents "normal communication" (ping, espconn ..) while still only providing 128 bytes.

A promiscuous mode without data-access that is also blocking normal operation is not very useful, is it?

How can one solve those limitations?