Hi, On Tuesday, 1 October 2019 15:36:19 CEST Ordit Gross wrote: > hi all, > I would like to register on encryption changed event. > As far as I could tell mgmt-api does not consist of such capability. > I think that reading from an HCI socket may enable me to read all > events (and the needed one as well). > is there a better way of registering on encryption changed event? > > The reason I need this capability in the first place is that I want to > enable repairing if BLE Peripheral Removes Pairing keys. > currently, when the peripheral deletes his side of keys and attempt to > connect to master, the master will get encryption changed event with > error "PIN or Key Missing". > that's why I want to be notified on application that we got this > event, so I can delete my side of keys as well.. > > any suggestions? > thanks in advance!! > Ordit Ha, I was working on that few years back but unfortunatelly it never got in... mostly due to objections about dropping old keys before new pairing (which I don't think is necessary with proposed Agent consent-based approach but others were not sharing my view on this ;-). Kernel part with reporting proper error to userspace is done so userspace has all the information it needs. For bluetoothd I've sent RFC [1] which might give you a bit of headstart while working on this. In short, it extends Agent API with new call used to consent re-bond of remote device. [1] https://marc.info/?l=linux-bluetooth&m=147031736607899&w=2 -- pozdrawiam Szymon Janc
