tree 9d0080f4c5149de32ddf862b17c6243af7d6ab8e
parent fb3ccfdcdd2dbcc9e01aecb7ecefc25c47dc8a86
author Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl> 1696338764 +0200
committer Andrzej Kaczmarek <andrzej.kaczmarek@codecoup.pl> 1698319167 +0200

nimble/ll: Add vs hci to set local IRK

This adds vendor-specific HCI command to set local IRK in controller.
IRK can be set for both public and static random addresses separately.

Local IRK, if set, is used to generate local RPA in use cases where own
address type was set to 0x02 or 0x03 but peer address is not added to
resolving list. This for example allows to handle initiating connection
to a new peer using RPA as our local address entirely in LL. Without
that command it would be required for host to generate an RPA, set it as
random address and connect using random address. This however doesn't
work well with NimBLE host.

If no IRK is set (or set to all-zero), the controller behaves as usual
which makes it safe to enable as it won't break anything.