blob: 78f0bd27921fb8bbbebda7ee3e9e460a3e6a6c37 [file] [log] [blame]
Bluetooth Management API
*************************
Copyright (C) 2008-2009 Marcel Holtmann <marcel@holtmann.org>
Overview
========
This document describes the format of data used for communicating with
the kernel using a so-called Bluetooth Management sockets. These sockets
are available starting with Linux kernel version 3.4
The following kernel versions introduced new commands, new events or
important fixes to the Bluetooth Management API:
Linux kernel v3.4 Version 1.0
Linux kernel v3.5 Version 1.1
Linux kernel v3.7 Version 1.2
Linux kernel v3.9 Version 1.3
Linux kernel v3.13 Version 1.4
Version 1.1 introduces Set Device ID command.
Version 1.2 introduces Passkey Notify event.
Version 1.3 does not introduce any new command or event.
Version 1.4 introduces Set Advertising, Set BR/EDR, Set Static Address
and Set Scan Parameters commands.
Example
=======
The Bluetooth management sockets can be created by setting the hci_channel
member of struct sockaddr_hci to HCI_CHANNEL_CONTROL (3) when creating a
raw HCI socket. In C the needed code would look something like the following:
int mgmt_create(void)
{
struct sockaddr_hci addr;
int fd;
fd = socket(PF_BLUETOOTH, SOCK_RAW | SOCK_CLOEXEC | SOCK_NONBLOCK,
BTPROTO_HCI);
if (fd < 0)
return -errno;
memset(&addr, 0, sizeof(addr));
addr.hci_family = AF_BLUETOOTH;
addr.hci_dev = HCI_DEV_NONE;
addr.hci_channel = HCI_CHANNEL_CONTROL;
if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
int err = -errno;
close(fd);
return err;
}
return fd;
}
The process creating the mgmt socket is required to have the
CAP_NET_ADMIN capability (e.g. root would have this).
Packet Structures
=================
Commands:
0 4 8 12 16 22 24 28 31 35 39 43 47
+-------------------+-------------------+-------------------+
| Command Code | Controller Index | Parameter Length |
+-------------------+-------------------+-------------------+
| |
Events:
0 4 8 12 16 22 24 28 31 35 39 43 47
+-------------------+-------------------+-------------------+
| Event Code | Controller Index | Parameter Length |
+-------------------+-------------------+-------------------+
| |
All fields are in little-endian byte order (least significant byte first).
Controller Index can have a special value <non-controller> to indicate that
command or event is not related to any controller. Possible values:
<controller id> 0x0000 to 0xFFFE
<non-controller> 0xFFFF
Error Codes
===========
The following values have been defined for use with the Command Status
and Command Complete events:
0x00 Success
0x01 Unknown Command
0x02 Not Connected
0x03 Failed
0x04 Connect Failed
0x05 Authentication Failed
0x06 Not Paired
0x07 No Resources
0x08 Timeout
0x09 Already Connected
0x0A Busy
0x0B Rejected
0x0C Not Supported
0x0D Invalid Parameters
0x0E Disconnected
0x0F Not Powered
0x10 Cancelled
0x11 Invalid Index
Read Management Version Information Command
===========================================
Command Code: 0x0001
Controller Index: <non-controller>
Command Parameters:
Return Parameters: Version (1 Octets)
Revision (2 Octets)
This command returns the Management version and revision.
Besides, being informational the information can be used to
determine whether certain behavior has changed or bugs fixed
when interacting with the kernel.
This command generates a Command Complete event on success or
a Command Status event on failure.
Read Management Supported Commands Command
==========================================
Command Code: 0x0002
Controller Index: <non-controller>
Command Parameters:
Return Parameters: Num_Of_Commands (2 Octets)
Num_Of_Events (2 Octets)
Command1 (2 Octets)
Command2 (2 Octets)
...
Event1 (2 Octets)
Event2 (2 Octets)
...
This command returns the list of supported Management commands
and events.
The commands Read Management Version Information and Read
management Supported Commands are not included in this list.
Both commands are always supported and mandatory.
The events Command Status and Command Complete are not included
in this list. Both are implicit and mandatory.
This command generates a Command Complete event on success or
a Command Status event on failure.
Read Controller Index List Command
==================================
Command Code: 0x0003
Controller Index: <non-controller>
Command Parameters:
Return Parameters: Num_Controllers (2 Octets)
Controller_Index[i] (2 Octets)
This command returns the list of currently known controllers.
Controllers added or removed after calling this command can be
monitored using the Index Added and Index Removed events.
This command generates a Command Complete event on success or
a Command Status event on failure.
Read Controller Information Command
===================================
Command Code: 0x0004
Controller Index: <controller id>
Command Parameters:
Return Parameters: Address (6 Octets)
Bluetooth_Version (1 Octet)
Manufacturer (2 Octets)
Supported_Settings (4 Octets)
Current_Settings (4 Octets)
Class_Of_Device (3 Octets)
Name (249 Octets)
Short_Name (11 Octets)
This command is used to retreive the current state and basic
information of a controller. It is typically used right after
getting the response to the Read Controller Index List command
or an Index Added event.
If not short name is set the Short_Name parameter will be empty
(begin with a nul byte).
Current_Settings & Supported_Settings is a bitmask with
currently the following available bits:
1 Powered
2 Connectable
3 Fast Connectable
4 Discoverable
5 Pairable
6 Link Level Security (Sec. mode 3)
7 Secure Simple Pairing
8 Basic Rate/Enhanced Data Rate
9 High Speed
10 Low Energy
11 Advertising
12 Secure Connections
13 Debug Keys
14 Privacy
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Set Powered Command
===================
Command Code: 0x0005
Controller Index: <controller id>
Command Parameters: Powered (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to power on or off a controller. The
allowed Powered command parameter values are 0x00 and 0x01. All
other values will return Invalid Parameters.
If discoverable setting is activated with a timeout, then
switching the controller off will expire this timeout and
disable discoverable.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Invalid Parameters
Invalid Index
Set Discoverable Command
========================
Command Code: 0x0006
Controller Index: <controller id>
Command Parameters: Discoverable (1 Octet)
Timeout (2 Octets)
Return Parameters: Current_Settings (4 Octets)
This command is used to set the discoverable property of a
controller. The allowed Discoverable command parameter values
are 0x00, 0x01 and 0x02. All other values will return Invalid
Parameters.
Timeout is the time in seconds and is only meaningful when
Discoverable is set to 0x01 or 0x02. Providing a timeout
with 0x00 return Invalid Parameters. For 0x02, the timeout
value is required.
The value 0x00 disables discoverable, the value 0x01 enables
general discoverable and the value 0x02 enables limited
discoverable.
This command is only available for BR/EDR capable controllers
(e.g. not for single-mode LE ones). It will return Not Supported
otherwise.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
However using a timeout when the controller is not powered will
return Not Powered error.
When switching discoverable on and the connectable setting is
off it will return Rejected error.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Rejected
Not Supported
Invalid Parameters
Not Powered
Invalid Index
Set Connectable Command
=======================
Command Code: 0x0007
Controller Index: <controller id>
Command Parameters: Connectable (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to set the connectable property of a
controller. The allowed Connectable command parameter values are
0x00 and 0x01. All other values will return Invalid Parameters.
This command is available for BR/EDR, LE-only and also dual
mode controllers. For BR/EDR is changes the page scan setting
and for LE controllers it changes the advertising type. For
dual mode controllers it affects both settings.
For LE capable controllers the connectable setting only takes
affect when advertising is enabled.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
When switching connectable off, it will also switch off the
discoverable setting. Switching connectable back on will not
restore a previous discoverable. It will stay off and needs
to be manually switched back on.
When switching connectable off, it will expire a discoverable
setting with a timeout.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set Fast Connectable Command
============================
Command Code: 0x0008
Controller Index: <controller id>
Command Parameters: Enable (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to set the controller into a connectable
state where the page scan parameters have been set in a way to
favor faster connect times with the expense of higher power
consumption.
The allowed values of the Enable command parameter are 0x00 and
0x01. All other values will return Invalid Parameters.
This command is only available for BR/EDR capable controllers
(e.g. not for single-mode LE ones). It will return Not Supported
otherwise.
This command can only be used when the controller is powered on
and will return Not Powerd otherwise.
If connectable is not set, then this command will fail with
Rejected error.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Failed
Busy
Rejected
Not Supported
Invalid Parameters
Not Powered
Invalid Index
Set Pairable Command
====================
Command Code: 0x0009
Controller Index: <controller id>
Command Parameters: Pairable (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to set the pairable property of an
controller. The allowed values for the Pairable command
parameter are 0x00 and 0x01. All other values will return
Invalid Parameters.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
Turning pairable on will not automatically switch the controller
into connectable mode. That needs to be done separately.
The setting will be remembered during power down/up toggles.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Set Link Security Command
=========================
Command Code: 0x000A
Controller Index: <controller id>
Command Parameters: Link_Security (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to either enable or disable link level
security for an controller (also known as Security Mode 3). The
allowed values for the Link_Security command parameter are 0x00
and 0x01. All other values will return Invalid Parameters.
This command is only available for BR/EDR capable controllers
(e.g. not for single-mode LE ones). It will return Not Supported
otherwise.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set Secure Simple Pairing Command
=================================
Command Code: 0x000B
Controller Index: <controller id>
Command Parameters: Secure_Simple_Pairing (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable/disable Secure Simple Pairing
support for a controller. The allowed values for the
Secure_Simple_Pairing command parameter are 0x00 and 0x01. All
other values will return Invalid Parameters.
This command is only available for BR/EDR capable controllers
supporting the core specification version 2.1 or greater
(e.g. not for single-mode LE controllers or pre-2.1 ones).
This command can be used when the controller is not powered and
all settings will be programmed once powered.
In case the controller does not support Secure Simple Pairing,
the command will fail regardless with Not Supported error.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set High Speed Command
======================
Command Code: 0x000C
Controller Index: <controller id>
Command Parameters: High_Speed (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable/disable Bluetooth High Speed
support for a controller. The allowed values for the High_Speed
command parameter are 0x00 and 0x01. All other values will
return Invalid Parameters.
This command is only available for BR/EDR capable controllers
(e.g. not for single-mode LE ones).
This command can be used when the controller is not powered and
all settings will be programmed once powered.
To enable High Speed support, it is required that Secure Simple
Pairing support is enabled first. High Speed support is not
possible for connections without Secure Simple Pairing.
When switching Secure Simple Pairing off, the support for High
Speed will be switched off as well. Switching Secure Simple
Pairing back on, will not re-enable High Speed support. That
needs to be done manually.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Not Supported
Invalid Parameters
Invalid Index
Set Low Energy Command
======================
Command Code: 0x000D
Controller Index: <controller id>
Command Parameters: Low_Energy (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable/disable Low Energy support for a
controller. The allowed values of the Low_Energy command
parameter are 0x00 and 0x01. All other values will return
Invalid Parameters.
This command is only available for LE capable controllers and
will yield in a Not Supported error otherwise.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
In case the kernel subsystem does not support Low Energy or the
controller does not either, the command will fail regardless.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set Device Class
================
Command Code: 0x000E
Controller Index: <controller id>
Command Parameters: Major_Class (1 Octet)
Minor_Class (1 Octet)
Return Parameters: Class_Of_Device (3 Octets)
This command is used to set the major and minor device class for
BR/EDR capable controllers.
This command will also implicitly disable caching of pending CoD
and EIR updates.
This command is only available for BR/EDR capable controllers
(e.g. not for single-mode LE ones).
This command can be used when the controller is not powered and
all settings will be programmed once powered.
In case the controller is powered off, 0x000000 will be returned
for the class of device parameter. And after power on the new
value will be announced via class of device changed event.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set Local Name Command
======================
Command Code: 0x000F
Controller Index: <controller id>
Command Parameters: Name (249 Octets)
Short_Name (11 Octets)
Return Parameters: Name (249 Octets)
Short_Name (11 Octets)
This command is used to set the local name of a controller. The
command parameters also include a short name which will be used
in case the full name doesn't fit within EIR/AD data.
The name parameters need to always end with a null byte (failure
to do so will cause the command to fail).
This command can be used when the controller is not powered and
all settings will be programmed once powered.
The values of name and short name will be remembered when
switching the controller off and back on again. So the name
and short name only have to be set once when a new controller
is found and will stay until removed.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Add UUID Command
================
Command Code: 0x0010
Controller Index: <controller id>
Command Parameters: UUID (16 Octets)
SVC_Hint (1 Octet)
Return Parameters: Class_Of_Device (3 Octets)
This command is used to add a UUID to be published in EIR
and/or AD data. The accompanied SVC_Hint parameter is used to
tell the kernel whether the service class bits of the Class of
Device value need modifying due to this UUID.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
In case the controller is powered off, 0x000000 will be returned
for the class of device parameter. And after power on the new
value will be announced via class of device changed event.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Invalid Parameters
Invalid Index
Remove UUID Command
===================
Command Code: 0x0011
Controller Index: <controller id>
Command Parameters: UUID (16 Octets)
Return Parameters: Class_Of_Device (3 Octets)
This command is used to remove a UUID previously added using the
Add UUID command.
When the UUID parameter is an empty UUID (16 x 0x00), then all
previously loaded UUIDs will be removed.
This command can be used when the controller is not powered and
all settings will be programmed once powered.
In case the controller is powered off, 0x000000 will be returned
for the class of device parameter. And after power on the new
value will be announced via class of device changed event.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Invalid Parameters
Invalid Index
Load Link Keys Command
======================
Command Code: 0x0012
Controller Index: <controller id>
Command Parameters: Debug_Keys (1 Octet)
Key_Count (2 Octets)
Key1 {
Address (6 Octets)
Address_Type (1 Octet)
Key_Type (1 Octet)
Value (16 Octets)
PIN_Length (1 Octet)
}
Key2 { }
...
Return Parameters:
This command is used to feed the kernel with currently known
link keys. The command does not need to be called again upon the
receiption of New Link Key events since the kernel updates its
list automatically.
The Debug_Keys parameter is used to tell the kernel whether to
accept the usage of debug keys or not. The allowed values for
this parameter are 0x00 and 0x01. All other values will return
an Invalid Parameters response.
Possible values for the Address_Type parameter:
0 BR/EDR
1 Reserved (not in use)
2 Reserved (not in use)
Public and random LE addresses are not valid and will be rejected.
Currently defined Key_Type values are:
0x00 Combination key
0x01 Local Unit key
0x02 Remote Unit key
0x03 Debug Combination key
0x04 Unauthenticated Combination key from P-192
0x05 Authenticated Combination key from P-192
0x06 Changed Combination key
0x07 Unauthenticated Combination key from P-256
0x08 Authenticated Combination key from P-256
This command can be used when the controller is not powered.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Load Long Term Keys Command
===========================
Command Code: 0x0013
Controller Index: <controller id>
Command Parameters: Key_Count (2 Octets)
Key1 {
Address (6 Octets)
Address_Type (1 Octet)
Key_Type (1 Octet)
Master (1 Octet)
Encryption_Size (1 Octet)
Encryption_Diversifier (2 Octets)
Random_Number (8 Octets)
Value (16 Octets)
}
Key2 { }
...
Return Parameters:
This command is used to feed the kernel with currently known
(SMP) Long Term Keys. The command does not need to be called
again upon the receiption of New Long Term Key events since the
kernel updates its list automatically.
Possible values for the Address_Type parameter:
0 Reserved (not in use)
1 LE Public
2 LE Random
The provided Address and Address_Type are the identity of
a device. So either its public address or static random address.
Unresolvable random addresses and resolvable random addresses are
not valid and will be rejected.
Currently defined Key_Type values are:
0x00 Unauthenticated key
0x01 Authenticated key
This command can be used when the controller is not powered.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Disconnect Command
==================
Command Code: 0x0014
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to force the disconnection of a currently
connected device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Busy
Invalid Parameters
Not Powered
Invalid Index
Get Connections Command
=======================
Command Code: 0x0015
Controller Index: <controller id>
Command Parameters:
Return Parameters: Connection_Count (2 Octets)
Address1 {
Address (6 Octets)
Address_Type (1 Octet)
}
Address2 { }
...
This command is used to retreive a list of currently connected
devices.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
For devices using resolvable random addresses with a known
identity resolving key, the Address and Address_Type will
contain the identity information.
This command can only be used when the controller is powered.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Not Powered
Invalid Index
PIN Code Reply Command
=======================
Command Code: 0x0016
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
PIN_Length (1 Octet)
PIN_Code (16 Octets)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to respond to a PIN Code request event.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Invalid Parameters
Not Powered
Invalid Index
PIN Code Negative Reply Command
===============================
Command Code: 0x0017
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to return a negative response to a PIN Code
Request event.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Invalid Parameters
Not Powered
Invalid Index
Set IO Capability Command
=========================
Command Code: 0x0018
Controller Index: <controller id>
Command Parameters: IO_Capability (1 Octet)
Return Parameters:
This command is used to set the IO Capability used for pairing.
The command accepts both SSP and SMP values. The KeyboardDisplay
SMP value (which doesn't exist for SSP will) automatically be
downgraded to DisplayYesNo by the kernel for SSP pairing events.
This command can be used when the controller is not powered.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Pair Device Command
===================
Command Code: 0x0019
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
IO_Capability (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to trigger pairing with a remote device.
The IO_Capability command parameter is used to temporarily (for
this pairing event only) override the global IO Capaility (set
using the Set IO Capability command).
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The Address and Address_Type of the return parameters will
return the identity address if know. In case of resolvable
random address given as command parameters and the remote
provides an identity resolving key, the return parameters
will provide the resolved address.
To allow tracking of which resolvable random address changed
into which identity address, the New Identity Resolving Key
event will be send before receiving Command Complete event
for this command.
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Connect Failed
Busy
Invalid Parameters
Not Powered
Invalid Index
Cancel Pair Device
==================
Command Code: 0x001A
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
The Address and Address_Type parameters should match what was
given to a preceding Pair Device command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Invalid Parameters
Not Powered
Invalid Index
Unpair Device Command
=====================
Command Code: 0x001B
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Disconnect (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
Removes all keys associated with the remote device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The Disconnect parameter tells the kernel whether to forcefully
disconnect any existing connections to the device. It should in
practice always be 1 except for some special GAP qualification
test-cases where a key removal without disconnecting is needed.
When unpairing a device its link key, long term key and if
provided identity resolving key will be purged.
For devices using resolvable random addresses where the identity
resolving key was available, after this command they will now no
longer be resolved. The device will essentially become private
again.
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Paired
Invalid Parameters
Not Powered
Invalid Index
User Confirmation Reply Command
===============================
Command Code: 0x001C
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to respond to a User Confirmation Request
event.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Invalid Parameters
Not Powered
Invalid Index
User Confirmation Negative Reply Command
========================================
Command Code: 0x001D
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to return a negative response to a User
Confirmation Request event.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Invalid Parameters
Not Powered
Invalid Index
User Passkey Reply Command
==========================
Command Code: 0x001E
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Passkey (4 Octets)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to respond to a User Confirmation Passkey
Request event.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Invalid Parameters
Not Powered
Invalid Index
User Passkey Negative Reply Command
===================================
Command Code: 0x001F
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to return a negative response to a User
Passkey Request event.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Not Connected
Invalid Parameters
Not Powered
Invalid Index
Read Local Out Of Band Data Command
===================================
Command Code: 0x0020
Controller Index: <controller id>
Command Parameters:
Return Parameters: Hash_192 (16 Octets)
Randomizer_192 (16 Octets)
Hash_256 (16 Octets, Optional)
Randomizer_256 (16 Octets, Optional)
This command is used to read the local Out of Band data.
This command can only be used when the controller is powered.
If Secure Connections support is enabled, then this command
will return P-192 versions of hash and randomizer as well as
P-256 versions of both.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Not Supported
Busy
Invalid Parameters
Not Powered
Invalid Index
Add Remote Out Of Band Data Command
===================================
Command Code: 0x0021
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Hash_192 (16 Octets)
Randomizer_192 (16 Octets)
Hash_256 (16 Octets, Optional)
Randomizer_256 (16 Octets, Optional)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to provide Out of Band data for a remote
device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
Provided Out Of Band data is persistent over power down/up toggles.
This command also accept optional P-256 versions of hash and
randomizer. If they are not provided, then they are set to
zero value.
The P-256 versions of both can also be provided when the
support for Secure Connections is not enabled. However in
that case they will never be used.
To only provide the P-256 versions of hash and randomizer,
it is valid to leave both P-192 fields as zero values. If
Secure Connections is disabled, then of course this is the
same as not providing any data at all.
This command generates a Command Complete event on success
or failure.
Possible errors: Failed
Invalid Parameters
Not Powered
Invalid Index
Remove Remote Out Of Band Data Command
======================================
Command Code: 0x0022
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to remove data added using the Add Remote
Out Of Band Data command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command generates a Command Complete event on success
or failure.
Possible errors: Invalid Parameters
Not Powered
Invalid Index
Start Discovery Command
=======================
Command Code: 0x0023
Controller Index: <controller id>
Command Parameters: Address_Type (1 Octet)
Return Parameters: Address_Type (1 Octet)
This command is used to start the process of discovering remote
devices. A Device Found event will be sent for each discovered
device.
Possible values for the Address_Type parameter are a bit-wise or
of the following bits:
1 BR/EDR
2 LE Public
3 LE Random
By combining these e.g. the following values are possible:
1 BR/EDR
6 LE (public & random)
7 BR/EDR/LE (interleaved discovery)
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Not Powered
Invalid Index
Stop Discovery Command
======================
Command Code: 0x0024
Controller Index: <controller id>
Command Parameters: Address_Type (1 Octet)
Return Parameters: Address_Type (1 Octet)
This command is used to stop the discovery process started using
the Start Discovery command.
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Rejected
Invalid Parameters
Invalid Index
Confirm Name Command
====================
Command Code: 0x0025
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Name_Known (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is only valid during device discovery and is
expected for each Device Found event with the Confirm Name
flag set.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The Name_Known parameter should be set to 0x01 if user space
knows the name for the device and 0x00 if it doesn't. If set to
0x00 the kernel will perform a name resolving procedure for the
device in question.
This command can only be used when the controller is powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Failed
Invalid Parameters
Invalid Index
Block Device Command
====================
Command Code: 0x0026
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to add a device to the list of devices
which should be blocked from being connect to the local
controller.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can be used when the controller is not powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Failed
Invalid Parameters
Invalid Index
Unblock Device Command
======================
Command Code: 0x0027
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Address_Type (1 Octet)
Return Parameters: Address (6 Octets)
Address_Type (1 Octet)
This command is used to remove a device from the list of blocked
devices (where it was added to using the Block Device command).
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
This command can be used when the controller is not powered.
This command generates a Command Complete event on success
or failure.
Possible errors: Invalid Parameters
Invalid Index
Set Device ID Command
=====================
Command Code: 0x0028
Controller Index: <controller id>
Command Parameters: Source (2 Octets)
Vendor (2 Octets)
Product (2 Octets)
Version (2 Octets)
Return Parameters:
This command can be used when the controller is not powered and
all settings will be programmed once powered.
The Source parameter selects the organization that assigned the
Vendor parameter:
0x0000 Disable Device ID
0x0001 Bluetooth SIG
0x0002 USB Implementer’s Forum
The information are put into the EIR data. If the controller does
not support EIR or if SSP is disabled, this command will still
succeed. The information are stored for later use and will survive
toggling SSP on and off.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Set Advertising Command
=======================
Command Code: 0x0029
Controller Index: <controller id>
Command Parameters: Advertising (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable LE advertising on a controller
that supports it. The allowed values for the Advertising
command parameter are 0x00 and 0x01. All other values will
return Invalid Parameters.
A pre-requisite is that LE is already enabled, otherwise
this command will return a "rejected" response.
This command generates a Command Complete event on success or a
Command Status event on failure.
Possible errors: Busy
Rejected
Not Supported
Invalid Parameters
Invalid Index
Set BR/EDR Command
==================
Command Code: 0x002A
Controller Index: <controller id>
Command Parameters: BR/EDR (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable or disable BR/EDR support
on a dual-mode controller. The allowed values for the Advertising
command parameter are 0x00 and 0x01. All other values will
return Invalid Parameters.
A pre-requisite is that LE is already enabled, otherwise
this command will return a "rejected" response. Enabling BR/EDR
can be done both when powered on and powered off, however
disabling it can only be done when powered off (otherwise the
command will again return "rejected"). Disabling BR/EDR will
automatically disable all other BR/EDR related settings.
This command generates a Command Complete event on success or a
Command Status event on failure.
Possible errors: Busy
Rejected
Not Supported
Invalid Parameters
Invalid Index
Set Static Address Command
==========================
Command Code: 0x002B
Controller Index: <controller id>
Command Parameters: Address (6 Octets)
Return Parameters:
This command allows for setting the static random address. It is
only supported on controllers with LE support. The static random
address is suppose to be valid for the lifetime of the
controller or at least until the next power cycle. To ensure
such behavior, setting of the address is limited to when the
controller is powered off.
The special BDADDR_ANY address (00:00:00:00:00:00) can be used
to disable the static address.
When a controller has a public address (which is required for
all dual-mode controllers), this address is not used. Only when
the controller information reports BDADDR_ANY (00:00:00:00:00:00),
it is required to configure a static address first.
If privacy mode is enabled and the controller is single mode
LE only without a public address, the static random address is
used as identity address.
This command generates a Command Complete event on success or a
Command Status event on failure.
Possible errors: Rejected
Not Supported
Invalid Parameters
Invalid Index
Set Scan Parameters Command
===========================
Command Code: 0x002C
Controller Index: <controller id>
Command Parameters: Interval (2 Octets)
Window (2 Octets)
Return Parameters:
This command allows for setting the Low Energy scan parameters
used for connection establishment and passive scanning. It is
only supported on controllers with LE support.
This command generates a Command Complete event on success or a
Command Status event on failure.
Possible errors: Rejected
Not Supported
Invalid Parameters
Invalid Index
Set Secure Connections Command
==============================
Command Code: 0x002D
Controller Index: <controller id>
Command Parameters: Secure_Connections (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable/disable Secure Connections
support for a controller. The allowed values for the
Secure_Connections command parameter are 0x00, 0x01 and 0x02.
All other values will return Invalid Parameters.
The value 0x00 disables Secure Connections, the value 0x01
enables Secure Connections and the value 0x02 enables Secure
Connections Only mode.
This command is only available for BR/EDR capable controllers
supporting the core specification version 4.1 or greater
(e.g. not for single-mode LE controllers or pre-4.1 ones).
This command can be used when the controller is not powered and
all settings will be programmed once powered.
In case the controller does not support Secure Connections
the command will fail regardless with Not Supported error.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set Debug Keys Command
======================
Command Code: 0x002E
Controller Index: <controller id>
Command Parameters: Debug_Keys (1 Octet)
Return Parameters: Current_Settings (4 Octets)
This command is used to tell the kernel whether to accept the
usage of debug keys or not. The allowed values for this parameter
are 0x00 and 0x01. All other values will return an Invalid Parameters
response.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Set Privacy Command
===================
Command Code: 0x002F
Controller Index: <controller id>
Command Parameters: Privacy (1 Octet)
Identity_Resolving_Key (16 Octets)
Return Parameters: Current_Settings (4 Octets)
This command is used to enable Low Energy Privacy feature using
resolvable private addresses.
The value 0x00 disables privacy mode, the value 0x01 enables
privacy mode.
When the controller has a public address (mandatory for dual-mode
controllers) it is used as identity address. In case the controller
is single mode LE only without a public address, it is required
to configure a static random andress first. The privacy mode can
only be enabled when an identity address is available.
The Identity_Resolving_Key is the local key assigned for the local
resolvable private address.
Possible errors: Busy
Not Supported
Invalid Parameters
Invalid Index
Load Identity Resolving Keys Command
====================================
Command Code: 0x0030
Controller Index: <controller id>
Command Parameters: Key_Count (2 Octets)
Key1 {
Address (6 Octets)
Address_Type (1 Octet)
Value (16 Octets)
}
Key2 { }
...
Return Parameters:
This command is used to feed the kernel with currently known
identity resolving keys. The command does not need to be called
again upon the receiption of New Identity Resolving Key events
since the kernel updates its list automatically.
Possible values for the Address_Type parameter:
0 Reserved (not in use)
1 LE Public
2 LE Random
The provided Address and Address_Type are the identity of
a device. So either its public address or static random address.
Unresolvable random addresses and resolvable random addresses are
not valid and will be rejected.
This command can be used when the controller is not powered.
This command generates a Command Complete event on success or
a Command Status event on failure.
Possible errors: Invalid Parameters
Invalid Index
Command Complete Event
======================
Event Code: 0x0001
Controller Index: <controller id> or <non-controller>
Event Parameters: Command_Opcode (2 Octets)
Status (1 Octet)
Return_Parameters
This event is an indication that a command has completed. The
fixed set of parameters includes the opcode to identify the
command that completed as well as a status value to indicate
success or failure. The rest of the parameters are command
specific and documented in the section for each command
separately.
Command Status Event
====================
Event Code: 0x0002
Controller Index: <controller id> or <non-controller>
Event Parameters: Command_Opcode (2 Octets)
Status (1 Octet)
The command status event is used to indicate an early status for
a pending command. In the case that the status indicates failure
(anything else except success status) this also means that the
command has finished executing.
Controller Error Event
======================
Event Code: 0x0003
Controller Index: <controller id>
Event Parameters: Error_Code (1 Octet)
This event maps straight to the HCI Hardware Error event and is
used to indicate something wrong with the controller hardware.
Index Added Event
=================
Event Code: 0x0004
Controller Index: <controller id>
Event Parameters:
This event indicates that a new controller has been added to the
system. It is usually followed by a Read Controller Information
command.
Index Removed Event
===================
Event Code: 0x0005
Controller Index: <controller id>
Event Parameters:
This event indicates that a controller has been removed from the
system.
New Settings Event
==================
Event Code: 0x0006
Controller Index: <controller id>
Event Parameters: Current_Settings (4 Octets)
This event indicates that one or more of the settings for a
controller has changed.
Class Of Device Changed Event
=============================
Event Code: 0x0007
Controller Index: <controller id>
Event Parameters: Class_Of_Device (3 Octets)
This event indicates that the Class of Device value for the
controller has changed. When the controller is powered off the
Class of Device value will always be reported as zero.
Local Name Changed Event
========================
Event Code: 0x0008
Controller Index: <controller id>
Event Parameters: Name (249 Octets)
Short_Name (11 Octets)
This event indicates that the local name of the controller has
changed.
New Link Key Event
==================
Event Code: 0x0009
Controller Index: <controller id>
Event Parameters: Store_Hint (1 Octet)
Key {
Address (6 Octets)
Address_Type (1 Octet)
Key_Type (1 Octet)
Value (16 Octets)
PIN_Length (1 Octet)
}
This event indicates that a new link key has bee generated for a
remote device.
The Store_Hint parameter indicates whether the host is expected
to store the key persistently or not (e.g. this would not be set
if the authentication requirement was "No Bonding").
Possible values for the Address_Type parameter:
0 BR/EDR
1 Reserved (not in use)
2 Reserved (not in use)
Public and random LE addresses are not valid and will be rejected.
Currently defined Key_Type values are:
0x00 Combination key
0x01 Local Unit key
0x02 Remote Unit key
0x03 Debug Combination key
0x04 Unauthenticated Combination key from P-192
0x05 Authenticated Combination key from P-192
0x06 Changed Combination key
0x07 Unauthenticated Combination key from P-256
0x08 Authenticated Combination key from P-256
Receiving this event indicates that a pairing procecure has
been completed.
New Long Term Key Event
=======================
Event Code: 0x000A
Controller Index: <controller id>
Event Parameters: Store_Hint (1 Octet)
Key {
Address (6 Octets)
Address_Type (1 Octet)
Key_Type (1 Octet)
Master (1 Octet)
Encryption Size (1 Octet)
Enc. Diversifier (2 Octets)
Random Number (8 Octets)
Value (16 Octets)
}
This event indicates that a new long term key has been generated
for a remote device.
The Store_Hint parameter indicates whether the host is expected
to store the key persistently or not (e.g. this would not be set
if the authentication requirement was "No Bonding").
Possible values for the Address_Type parameter:
0 Reserved (not in use)
1 LE Public
2 LE Random
The provided Address and Address_Type are the identity of
a device. So either its public address or static random address.
For unresolvable random addresses and resolvable random addresses
without identity information and identity resolving key, the
Store_Hint will be set to not store the long term key.
Currently defined Key_Type values are:
0x00 Unauthenticated key
0x01 Authenticated key
Receiving this event indicates that a pairing procecure has
been completed.
Device Connected Event
======================
Event Code: 0x000B
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Flags (4 Octets)
EIR_Data_Length (2 Octets)
EIR_Data (0-65535 Octets)
This event indicates that a successful baseband connection has
been created to the remote device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
For devices using resolvable random addresses with a known
identity resolving key, the Address and Address_Type will
contain the identity information.
It is possible that devices get connected via its resolvable
random address and after New Identity Resolving Key event
start using its identity.
The following bits are defined for the Flags parameter:
0 Reserved (not in use)
1 Legacy Pairing
Device Disconnected Event
=========================
Event Code: 0x000C
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Reason (1 Octet)
This event indicates that the baseband connection was lost to a
remote device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
For devices using resolvable random addresses with a known
identity resolving key, the Address and Address_Type will
contain the identity information.
Possible values for the Reason parameter:
0 Unspecified
1 Connection timeout
2 Connection terminated by local host
3 Connection terminated by remote host
Note that the local/remote distinction just determines which side
terminated the low-level connection, regardless of the
disconnection of the higher-level profiles.
This can sometimes be misleading and thus must be used with care.
For example, some hardware combinations would report a locally
initiated disconnection even if the user turned Bluetooth off in
the remote side.
Connect Failed Event
====================
Event Code: 0x000D
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Status (1 Octet)
This event indicates that a connection attempt failed to a
remote device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
For devices using resolvable random addresses with a known
identity resolving key, the Address and Address_Type will
contain the identity information.
PIN Code Request Event
======================
Event Code: 0x000E
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Secure (1 Octet)
This event is used to request a PIN Code reply from user space.
The reply should either be returned using the PIN Code Reply or
the PIN Code Negative Reply command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
Secure: 0x01 secure PIN code required
0x00 secure PIN code not required
User Confirmation Request Event
===============================
Event Code: 0x000F
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Confirm_Hint (1 Octet)
Value (4 Octets)
This event is used to request a user confirmation request from
user space.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
If the Confirm_Hint parameter value is 0x01 this means that
a simple "Yes/No" confirmation should be presented to the user
instead of a full numerical confirmation (in which case the
parameter value will be 0x00).
User space should respond to this command either using the User
Confirmation Reply or the User Confirmation Negative Reply
command.
User Passkey Request Event
==========================
Event Code: 0x0010
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
This event is used to request a passkey from user space. The
response to this event should either be the User Passkey Reply
command or the User Passkey Negative Reply command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
Authentication Failed Event
===========================
Event Code: 0x0011
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Status (1 Octet)
This event indicates that there was an authentication failure
with a remote device.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
Device Found Event
==================
Event Code: 0x0012
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
RSSI (1 Octet)
Flags (4 Octets)
EIR_Data_Length (2 Octets)
EIR_Data (0-65535 Octets)
This event indicates that a device was found during device
discovery.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The following bits are defined for the Flags parameter:
0 Confirm name
1 Legacy Pairing
The Confirm name flag indicates that the kernel wants to know
whether user space knows the name for this device or not. If
this flag is set user space should respond to it using the
Confirm Name command.
The Legacy Pairing flag indicates that Legacy Pairing is likely
to occur when pairing with this device. An application could use
this information to optimize the pairing process by locally
pre-generating a PIN code and thereby eliminate the risk of
local input timeout when pairing. Note that there is a risk of
false-positives for this flag so user space should be able to
handle getting something else as a PIN Request when pairing.
Discovering Event
=================
Event Code: 0x0013
Controller Index: <controller id>
Event Parameters: Address_Type (1 Octet)
Discovering (1 Octet)
This event indicates that the controller has started discovering
devices. This discovering state can come and go multiple times
between a StartDiscover and a StopDiscovery command.
The valid values for the Discovering parameter are 0x01
(enabled) and 0x00 (disabled).
Device Blocked Event
====================
Event Code: 0x0014
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
This event indicates that a device has been blocked using the
Block Device command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The event will only be sent to Management sockets other than the
one through which the command was sent.
Device Unblocked Event
======================
Event Code: 0x0015
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
This event indicates that a device has been unblocked using the
Unblock Device command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The event will only be sent to Management sockets other than the
one through which the command was sent.
Device Unpaired Event
=====================
Event Code: 0x0016
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
This event indicates that a device has been unpaired (i.e. all
its keys have been removed from the kernel) using the Unpair
Device command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
For devices using resolvable random addresses with a known
identity resolving key, the event paramters will contain
the identity. After receiving this event, the device will
become essentially private again.
The event will only be sent to Management sockets other than the
one through which the Unpair Device command was sent.
Passkey Notify Event
====================
Event Code: 0x0017
Controller Index: <controller id>
Event Parameters: Address (6 Octets)
Address_Type (1 Octet)
Passkey (4 Octets)
Entered (1 Octet)
This event is used to request passkey notification to the user.
Unlike the other authentication events it does not need
responding to using any Management command.
Possible values for the Address_Type parameter:
0 BR/EDR
1 LE Public
2 LE Random
The Passkey parameter indicates the passkey to be shown to the
user whereas the Entered parameter indicates how many characters
the user has entered on the remote side.
New Identity Resolving Key Event
================================
Event Code: 0x0018
Controller Index: <controller id>
Event Parameters: Store_Hint (1 Octet)
Random_Address (6 Octets)
Key {
Address (6 Octets)
Address_Type (1 Octet)
Value (16 Octets)
}
This event indicates that a new identity resolving key has been
generated for a remote device.
The Store_Hint parameter indicates whether the host is expected
to store the key persistently or not.
The Random_Address provides the resolvable random address that
was resolved into an identity. A value of 00:00:00:00:00:00
indicates that the identity resolving key was provided for
a public address or static random address.
Once this event has been send for a resolvable random address,
all further events mapping this device will send out using the
identity address information.
This event also indicates that now the identity address should
be used for commands instead of the resolvable random address.
Possible values for the Address_Type parameter:
0 Reserved (not in use)
1 LE Public
2 LE Random
The provided Address and Address_Type are the identity of
a device. So either its public address or static random address.
New Signature Resolving Key Event
=================================
Event Code: 0x0019
Controller Index: <controller id>
Event Parameters: Store_Hint (1 Octet)
Key {
Address (6 Octets)
Address_Type (1 Octet)
Master (1 Octet)
Value (16 Octets)
}
This event indicates that a new signature resolving key has been
generated for either the master or slave device.
The Store_Hint parameter indicates whether the host is expected
to store the key persistently or not.
When the Master parameter is set to 0x01, then the signature
resolving key from the remote peer device is provided. It is
the key that is used for signature verification.
When the Master parameter is set to 0x00, then it is the local
signature resolving key that is used to sign data. The remote
peer device will be using it for signature verification.
The local signature resolving key will be generated with each
pairing request. Only after receiving this event with Master
parameter set to 0x00 it is possible to use ATT Signed Write
procedures.
Possible values for the Address_Type parameter:
0 Reserved (not in use)
1 LE Public
2 LE Random
The provided Address and Address_Type are the identity of
a device. So either its public address or static random address.