search

bluez / bluez

Main BlueZ tree
https://bluez.github.io/bluez/
GNU General Public License v2.0
751 stars 273 forks source link

Remove of remote LE OOB data #841

Open SFrohn opened 6 months ago

SFrohn commented 6 months ago

Hello,

we are trying to remove LE remote OOB using the "Remove Remote Out Of Band Data Command" (0x0022) of the Mgmt API. However, when setting address_type to 1 or 2 the command always returns an error ("INVALID_PARAMETER").

Looking at the implementation in mgmt.c, the function seems not to accept address_type LE_PUBLIC or LE_RANDOM: https://github.com/bluez/bluetooth-next/blob/93e31170f4d098a9c07c5e389091ea45cb10e72a/net/bluetooth/mgmt.c#L5814

Is this intended behavior or is there any other way to remove LE OOB data for a certain device?

By the way, calling this function with BDADDR_ANY and BREDR address_type works as documented and removes all remote OOB data.

Best regards Simon

Vudentz commented 5 months ago

@SFrohn might be a bug actually since the documentation does say it is allowed:

    Possible values for the Address_Type parameter:
        0   BR/EDR
        1   LE Public
        2   LE Random
SFrohn commented 5 months ago

@Vudentz Yes, exactly. According to this documentation, we expected address_type LE_PUBLIC or LE_RANDOM to be valid as well. As the opposite command "Add Remote Out Of Band Data" accepts these address types, it is probably a bug.