Fix controller assert due to a bug introduced in commit
07270e52ba ("Bluetooth: controller: Coding style and
refactoring").
This reverts implementation to original way it was and the
calculation of the ticker expiry will now not overflow the
range of the RTC peripheral, which is a 24 bit counter.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
The RSSI value is an 8-bit signed integer. Since the Link Layer works
only with positive unsigned integers, translate into a negative number
at the HCI layer.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Since Extended Scanner Filter Policies is an independent feature from
Controller-based Privacy, split it out so it can be built independently
and included without it.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Whenever privacy is enabled, we support the Extended Scan Filter
Policies functionality, and therefore we must show it in the bitfield of
LE supported features for the controller.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Rename the BT_CONTROLLER prefix used in all of the Kconfig variables
related to the Bluetooth controller to BT_CTLR.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Implement the 4.2 event LE Directed Advertising Report, used for
scanners in a privacy-enabled controller to report directed advertising
events whose TargetA cannot be resolved by the local controller.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Add implementation to support PHY update procedure with
packet transmit time restrictions.
This fixes:
TP/CON/SLA/BV-49-C [Initiating PHY Update Procedure Packet
Time Restrictions]
TP/CON/SLA/BV-50-C [Responding to PHY Update Procedure
Packet Time Restrictions]
TP/CON/SLA/BV-52-C [Initiating PHY Update Procedure Packet
Time Restrictions, No Change]
TP/CON/SLA/BV-53-C [Responding to PHY Update Procedure
Packet Time Restrictions, No Change]
TP/CON/MAS/BV-49-C [Initiating PHY Update Procedure Packet
Time Restrictions]
TP/CON/MAS/BV-50-C [Responding to PHY Update Procedure
Packet Time Restrictions]
conformance tests in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
The API name space for Bluetooth is bt_* and BT_* so it makes sense to
align the Kconfig name space with this. The additional benefit is that
this also makes the names shorter. It is also in line with what Linux
uses for Bluetooth Kconfig entries.
Some Bluetooth-related Networking Kconfig defines are renamed as well
in order to be consistent, such as NET_L2_BLUETOOTH.
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Fix incorrect return data type, which causes controller to
hang generating random numbers.
Fixes bug introduced in commit d90095b556 ("Bluetooth:
controller: Use random numbers in adv and enc setup")
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
The specification requires the scanner to verify that the AdvA present
in a scan response matches the AdvA that was sent in the original scan
request.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Added implementation to get random numbers in ISR. And fixed
implementation to use random numbers in advertisement random
delay and encryption setup procedure.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
The existing check for the TargetA address in directed advertising
events was incorrect. In fact the specification states:
"An initiator that has been instructed by the Host to use
Resolvable Private Addresses shall not respond to directed connectable
advertising events that contain Public or Static addresses for the
target’s address (TargetA field)."
Hence, reject TargetA values that have not been successfully resolved
when the controller is generating its own RPAs.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
To be able to get a hit on the AAR whenever a Scan Response is received,
enable it in the state transition.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Add missing checks for the logic that discriminates between whitelisting
and non-whitelisting filtering, so that we do not fall into an
unsuspected false positive.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Rework the ctrl_lrpa_get() function so that it doesn't require an
assignment to be present inside the if statement, yielding smaller and
safer code.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Advertising reports generated by a scanner require the controller to
look up the resolving list to supply the host with an ID address instead
of the RPA that has been sent over the air.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Use the actual scanner address to copy the generated RPA into, instead
of mistakenly copying it into the advertiser's address.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Whenever trying to generate a local RPA to send a scan request or a conn
ind, verify that it can be generated (i.e. no NULL IRK provided by the
Host) and fall back to using the public/random address if required.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Since the hardware expects big-endian IRKs but the common generation
function expects it in little-endian, copy and reverse the peer IRK
before generating RPAs.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Implement the LE Enhanced Connection Complete HCI event, but include it
only when controller-based privacy is enabled, since it is only relevant
with it.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Since a connection attempt can fail and will still generate an LE
Connection Complete event, check the status from the LL control module
before incrementing the HCI connection count used for flow control.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
The nRF5 AAR requires the packet pointer to be placed exactly 3 bytes
before the beginning of the address. Since we don't use the S1 extra
length byte, substract one from the address of the radio packet pointer.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
The currently supported hardware in the LL requires big-endian IRK
values to properly function. Reverse the order of the IRK bytes coming
from HCI to address this issue.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
The nRF5's AAR was being improperly configured, leading to a NULL
scratch pointer which made it not function at all.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
In order to make sure that the ISR never gets an incomplete or partial
local RPA, use pointers to share the local RPA between thread mode and
ISRs. Pointer updates are guaranteed to be atomic at least on ARM
Cortex-M.
Additionally add support for using local RPAs when initiating a
connection or sending a scan request.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Since the hardware is only able to resolve the first address in the
packet, use the existing functionality to resolve a potential TargetA
RPA in software to verify if it matches the local device.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
This commit introduces controller-based privacy for both the scanner and
the initiator roles. All the features in the specification are
implemented except:
* RPA resolution for directed advertising (TargetA address)
* RPA generation for scan requests and conn ind packets
Follow-up patches will cover the 2 items of functionality still missing
from the basic implementation. Hosts not using controller-based privacy
should not be affected by this change.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Control and Data packet Tx queue management updated to be
optimal and defer control packet responses when Tx is paused
during encryption setup.
This fixes:
TP/SEC/MAS/BV-12 [Master Start Encryption: Overlapping
Procedure]
TP/SEC/MAS/BV-13 [Master Start Encryption: Overlapping
Procedure with LL_SLAVE_FEATURES_REQ]
conformance tests in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix handling of different procedure collision when receiving
a PHY update request and handling of reject extended
indication.
This fixes:
TP/CON/MAS/BV-47-C [Handling Protocol Collision – Different
Procedure – Channel Map],
TP/CON/SLA/BV-46-C [Handling Protocol Collision – Different
Procedure – Channel Map] and
TP/CON/SLA/BV-48-C [Handling Protocol Collision – Different
Procedure – Connection Update]
conformance test in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix missing PHY update event generation on same procedure
collision,
This fixes TP/CON/SLA/BV-44-C [Handling Protocol Collision –
Same Procedure] conformance test in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix PHY update procedure intiation to use correct No Change
value in MtoS and StoM when there is no change to respective
PHYs. Also, added missing HCI event generation under this
case.
This fixes TP/CON/MAS/BV-41-C [Initiating PHY Update
Procedure] conformance test in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
As ticker can only drift in 32kHz units, the slave Rx
window should consider a +/- one 32kHz unit in addition to
+/- 16us jitter of the master. Hence, for the current
implementation the slave Rx window jitter is +/- 48us.
Future improvement can be done by using remainder of 32kHz
unit drift to reduce this jitter to +/- 16us.
With this fix 20ppm clock accuracy passes conformance TIM
tests (else 251-500ppm had to be used).
Problem was not seen in real life as master do not have a
+/- 16us jitter.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix terminate procedure timeout when supervision timeout
equals connection interval. In this case, avoid timing out
in the first event of procedure initiation.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix slave implementation to initiate reject_ext_ind if peer
supports reject_ext_ind.
This fixes:
TP/SEC/SLA/BV-11-C [Slave Sending Reject_Ind_Ext]
conformance test in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix handling invalid control PDUs by generating
LL_UNKNOWN_RSP PDU.
This fixes:
TP/PAC/SLA/BV-01-C [Unknown Packet from Master]
TP/PAC/MAS/BV-01-C [Unknown Packet from Slave]
conformance tests in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix access address generation to correctly have two
transitions in the six MS bits and add other missing checks.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Minor cleanup of Encryption Restart Procedure; No need to
pause rx for slave role on reception of PAUSE_ENC_RSP PDU as
its already paused.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix assert in the controller on master connection creation
due to the CONNECT_IND PDU being transmitted beyond the
calculated scan window.
This is related to commit 80a796b493 ("Bluetooth:
controller: Fix scanner to use correct slot ticks")
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Fix an assert in next role event preparation when a
connection terminated during the connection event being
aborted/pre-empted out by the next role event.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
When populating the hardware filter, add only slots that are marked as
taken to avoid the hardware being confused by all-0 addresses. This
solves an EBQ issue with whitelist filtering.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
To avoid warnings (seen on some machines) that a function reaches its
end without returning a value, conditionally compile the function in a
way that this cannot happen.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
Fix master terminate procedure so that if slave responded to
the ack from master for the LL_TERMINATE_IND then the master
correctly disconnected.
This fixes TP/CON/MAS/BV-09-C [Master Accepting Termination]
in LL.TS.5.0.0.
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
Tested-by: Ulrich Myhre <ulmy@nordicsemi.no>
