Update send_ttl mainly for server models. When a server model
receives a message, and the status is required to be replied
by the application, we need to set send_ttl to the msg context.
If send_ttl is not updated in btc, and the applcation does not
set the TTL either, then the status will be replied with TTL=0,
which may cause the client side (e.g. the phone App) failed to
receive the status.
Closes https://github.com/espressif/esp-idf/issues/5300
Also remove some redundant CONFIG_BLE_MESH_PROXY checks, because
when the following options are satisfied, the CONFIG_BLE_MESH_PROXY
option will be selected mandatorily.
- Before updating the "beacon_sent" of a subnet, we need to check
if the subnet still exists, especially for a Provisioner.
- Fix a bug which will cause Provisioner failed to send Secure
Network Beacon if no device is provisioned
ctx values to cb_params for the mesh stack.
recv_rssi was not copied.
This means the rssi could not be read when receiving generic server messages using ble_mesh.
Prevent a remote device from doing a Bluetooth Impersonation Attack
(BIAS) by:
- Preventing remote device to downgrade secure connection
feature mask. Secure connection feature mask should remain same or
increase to enabled in link key generation and authentication.
- Doing a mutual authentication during Legacy Authentication.
- This issue was introduced in the commit: a788e7cd3d
which updated the bt_hex() function incorrectly.
- And in bt_hex(), we use 2 for the two-dimensional array, because currently
at most two bt_hex() will be used at the same time. Also this will save
some DRAM compared with using 4.
When using DPort to read fifo, fifo_cnt is not credible, we need to calculate the real cnt based on the fifo read and write pointer. When using AHB to read FIFO, we can use fifo_cnt to indicate the data length in fifo.
Some AP's keep NULL-padding at the end of some variable length WPS
Attributes. This is not as par the WPS2.0 specs, but to avoid interop
issues, ignore the padding by reducing the attribute length by 1.
Previously the model recv operation is a littl fuzzy.
With the changes, the model recv operation is splitted into:
- find op
- check app_idx
- check dst
- check length
- update info & handle message
The transport segmented TX nack and seg_pending fields must be at least
6 bits to avoid overflow for 32 segment messages. This change rearranges
the seg_tx fields to gather all state flag fields in one byte, while
making the counter fields whole bytes.
Ensures that friend messages are enqueued, even if the packet is
received with an appkey is unknown to the friend. Previously, sdu_recv
would return EINVAL if the appkey was unknown, which would prevent the
lower transport layer from adding the packet to the friend queue. This
is irrelevant for the logic in lower transport, and should not be
returned as an error.
Previous implementation violated the RFC by having both the actual opcode and WS_FIN flag set for all fragments of a message.
Fixed by setting the opcode only for the first fragment and WS_FIN for the last one
Closes IDFGH-2938
Closes https://github.com/espressif/esp-idf/issues/4974
Device name will be reset when deinit mesh stack. If not
initializing device name during the next mesh stack init,
it will fail to set the device name when using bluedroid.
Since bt_mesh_friend_init() will only be invoked when
a device is provisioned or Provisioner is enabled, so
we add a flag to indicate if the friend functionality
is initialized in case deinit before initialization.
1. fix the bug for softAP update second channel wrong
2. change wifi_scan_time_t from union to struct
3. query country code wrong when policy change from manual to auto
4. fix the crash issue when fetch peer after delete the cur_peer
5. fix the timeout issue of EAPOL four-way handshake
Old version of BLE Mesh has no device role storage, because
previously we only support storing mesh node info.
If the binary of the node is upgraded from old version to a
new version (support storing provisioner info), the mesh info
of the node will not be restored because mesh role does not
exist in the flash.
- Remove the extra #include "bt_common.h" in mesh_timer.c
- Compared with the latest idf, idf3.3 defines BIT(nr) in
the "soc/soc.h" without the pre-condition "#ifndef BIT",
which will cause compile warning when using mesh. So we
include the header file "soc/soc.h" in "mesh_util.h",
which can bypass the definition of "BIT" in "mesh_util.h"
when compiling.
When using fast provisioning, the Provisioner functionality
will be enabled. Unicast addresses within the pre-allocated
range will be used for provisioning nodes. And during the
address assignment, the allocated unicast address will be
checked that if it's duplicated with other nodes addresses
and the Provisioner's own addresses.
So before starting using fast provisioning, we need to update
the Provisioner address.
Since the behavior of sending segmented messages has been
changed properly, the calculation of timeout value which
will be used when sending an acknowledged message by a
client model also needs to be updated.
Add mutex to protect some variables of the mesh segmented
messages.
Currently the timeout handler of mesh will be executed in
the btc task, while the received mesh messages will be
handled in the btu task. In case some variables are set to
NULL when handled in the btu task, meanwhile these variables
are also accessed in the timeout handler, so we add mutex to
protect these variables and related operations.
The publication context is checked for NULL in bt_mesh_model_publish()
however it was dereferenced before that. Move the assignment to
ctx.send_rel to the same place where other ctx members are set.
Split mesh_util.h into mesh_byteorder.h, mesh_compiler.h,
mesh_ffs.h and mesh_util.h based on the classification of
Zephyr, which will make further porting more clear.
The Friend queue uses the message SeqAuth to determine whether the
message is already in the queue. To facilitate this, the SeqAuth is
passed around as a pointer throughout the transport modules. In the
bt_mesh_ctl_send functions, this parameter is also exposed in the API,
but the internal usage is inconsistent and buggy. Also, no one actually
uses this parameter.
- Removes seq_auth param from bt_mesh_ctl_send, instead passing NULL
directly to the friend module, to enforce its addition to the queue.
- Makes the seq_auth pointer const throughout the friend module.
Changes the behavior of the message cache to optimize for cache
capacity. Previously, the message cache's primary function was to avoid
decrypting messages multiple times, although the cache's main function
in the spec is to avoid message rebroadcasting. Optimizing for minimal
decryption causes us to fill the network cache faster, which in turn
causes more cache misses, potentially outweighing the advantage.
Now stores src + seq in message cache instead of field hash value. This
cuts cache size in two, while including more of the sequence number than
before.
Adds messages to the cache only after the packet is successfully
decrypted. This reduces noise in the cache, and ensures that no
invalid deobfuscations are added.
Additionally, this fixes a bug where multiple calls to net_decrypt with
the same packet failed, as the message cache found its own entry from
the previous call.
Implements several changes to the transport layer segmented tx to
improve group message performance:
- Moves retransmit counter to tx context instead of per packet. As every
unacked packet is sent every retransmit, the retransmit counters would
be the same in each segment. This makes it easier to control progress.
- Delays the scheduling of the retransmit until the completion of the
last segment by adding a seg_pending counter. This is essentially the
same as the old behavior, except that the old behavior might retrigger
the sending before all segments are finished if the advertising is
slow.
- Allows the group transmits to stop as soon as all retransmits have
been exhausted, instead of timing out waiting for acks that won't
come. This allows group tx to finish without error.
- Fixes a bug where a failed TX would block IV update.
- Cancels any pending transmissions of acked segments.
- Reduces log level for several common group tx scenarios that aren't
erronous.
Backport of https://github.com/apache/mynewt-nimble/pull/724
Mesh spec 1.0.1 changes proxy disabling behavior to only affect the
relaying from proxy nodes. Previously, disabling proxy would shut down
all proxy and node activity.
Tweaks from the original commit:
- Removed redundant call to bt_mesh_adv_update() in gatt_proxy_set()
- Removed invalid ref to 4.2.11.1 in node_identity_set()
---
According to Mesh Profile Spec 1.0.1, Section 4.2.11:
"If the Proxy feature is disabled, a GATT client device can connect
over GATT to that node for configuration and control. Messages from
the GATT bearer are not relayed to the advertising bearer."
Moreover some notes have been removed from the spec compared to
version 1.0:
Mesh Profile Spec 1.0, Section 4.2.11:
"Upon transition from GATT Proxy state 0x01 to GATT Proxy state 0x00
the GATT Bearer Server shall disconnect all GATT Bearer Clients."
"The Configuration Client should turn off the Proxy state as the last
step in the configuration process."
Mesh Profile Spec 1.0, Section 4.2.11.1:
"When the GATT Proxy state is set to 0x00, the Node Identity state
for all subnets shall be set to 0x00 and shall not be changed."
Until now the choice of reliable sending (segmented messages with
acks) was implicitly dependent on the size of the payload. Add a new
member to the bt_mesh_model_pub to force using segment acks even when
the payload would fit a single unsegmented message.
When PB-GATT support has been enabled the provisioning code "borrows"
the buffer from the proxy code. However, the way that initialization
was happening the proxy buffers were initialized only after
provisioning initialization, resulting in a corrupted buffer with
buf->data pointing to NULL. Reorder the initialization calls so that
proxy is done first and provisioning only after it.
Allow models to skip a periodic publish interval by returning an error
from the publish update callback.
Previously, an error return from publish update would cancel periodic
publishing. This can't be recovered from, and as such, no valid model
implementation could return an error from this callback, and there was
no way to skip a periodic publish.
The function bt_mesh_ctl_send() used to support maximum length of
11 bytes. The segmentation complies with the BLE Mesh Standard.
The ack is disabled in case of non unicast address.
When fast provisioning is enabled, Provisioner shall not
ignore messages from the nodes whose addresses are not in
the provisioning database. Because other nodes which are
not provisioned by the Primary Provisioner will send node
address messages to the Primary Provisioner.
Previously only mesh node info is supported to be stored
in flash. So when trying to reset the node, we only need
to judge if the BLE_MESH_VALID flag is set.
Currently we support storing both node & Provisioner info
in flash, when trying to erase the node info from flash,
the BLE_MESH_NODE flag will be checked. So we need to set
bt_mesh.flags to 0 when all the erase operations are done.
It was observed that after sending credentials, if the first
Wi-Fi conection attempt fails, the Wi-Fi provisioning managager
ignores subsequent Wi-Fi events. So, even if the device eventually
connects to the AP, the provisioning stays on indefinitely.
Changing a check so that subsequent events are also captured and
provisioning finishes successfully.
esp_mqtt_abort_connection: Fixed an issue which could result in a race condition and subsequent crash
esp_mqtt: Change an error print to use ESP_LOGE instead of ESP_LOGI
Move Sending MQTT connect message log from Info to Debug level
docs: Makes clear that publish API could block
Change the message printed after MQTT connection failure
During BLE Mesh Provisioner initialization, the stack will restore
the nodes information if settings storage is enabled.
Previously when a failure happens (e.g. found the same uuid) during
the restore procedure, the information of the following nodes will
not be restored and error will be directly returned.
But this will introduce some problem with user experience, because
some newly provisioned nodes information will not be restored and
Provisioner will not be able to control those nodes.
So we change the operation here, when a failure happens during the
restore procedure, Provisioner will only ignore the information of
the current node and continue restoring other nodes information.
With this change, if a Provisioner has provisioned the maximum
number of nodes, it can still report the unprovisioned device
beacon from other nodes to the application layer. And this will
be more reasonable compared with the previous implementation.
Previously when the node array of Provisioner is full, no beacon
from unprovisioned devices will be reported, only some warning
logs will be given.
Previously only check the node address when it is assigned by the
application layer. Here we also check the address when the address
is allocated internally. And this will be useful when some mesh
internal tests are performed.
Previously the BLE_MESH_MAX_STORED_NODES option is added for
internal mesh test, which will be a little confusing for the
users to understand.
Here we remove this option, instead the BLE_MESH_MAX_PROV_NODES
will be used for all the cases. For mesh internal test, when
the test function is called to add some nodes info, the info
will be stored in the array of provisioned nodes directly.
The replay protection list of Provisioner should be at least equal
to the number of nodes with the precondition that each node contains
only one element.
The help information of replay protection list is updated, and the
maximum number of nodes for Provisioner is adjusted based on the
replay protection list size.
Using the ble mesh white list test functions, a node can choose to
only receive mesh messages from a specific node and relay the
messages for it. Messages from other nodes will be ignored.
Commit fc03161f updated esp_ota_get_app_elf_sha256 to store and return
X number of bytes of the hash, but the test case still expected 64 bytes.
Updated test case to use CONFIG value for expected length.
1. add enable PSRAM 2T mode function
2. abort when himem and 2T mode are enabled meanwhile
3. set SPIRAM_2T_MODE as "n" by default, enable it when needed
transport_ws can now be read multiple times in a row to read frames larger than the buffer.
Added reporting of total payload length and offset to the user in websocket_client.
Added local example test for long messages.
Closes IDF-1083
Backport following Wifi fixes:
1. Optimize WiFi sleep in WiFi/BT coexist mode
I> If any data TX/RX in WiFi slice, force wakeup next TBTT
II> Increase active timeout to coex TBTT to avoid sleep in WiFi slice
2. Fix esp_wifi_stop() crash
esp_wifi_stop() crashes if it's called when WiFi is not initialized.
3. Fix WiFi log print level
4. Return fails if AP's configuring AP channel is out of range
5. esp_wifi_sta_get_ap_info() returns actual values of group ciphers
Problem:
mbedtls_ctr_drbg_context was initialized in crypto_ec_point_mul. This
was okay in releases before 2.16.4 as entropy_len used to get set to
MBEDTLS_CTR_DRBG_ENTROPY_LEN in function mbedtls_ctr_drbg_seed. The
function is now changed to set the length to
MBEDTLS_CTR_DRBG_ENTROPY_LEN if previous length is 0 and hence the bug.
Solution:
Initialize mbedtls_ctr_drbg_context in crypto_ec_point_mul.
Fixes an issue where build fails if the build directory is a symlink.
The issue is caused by the rule target and the final executable dependency
not matching.
Closes https://github.com/espressif/esp-idf/issues/3626
When a handler instance is the last one in the list und unregisters
itself, the handler iterator will be invalidated by entering free'd
memory. Same applies for event base and id, if they become empty.
Merges https://github.com/espressif/esp-idf/pull/4139
getc, getchar, putc, putchar were defined both as functions and as
macros. The macro versions are not thread safe, and should not be used
in multithreaded applications.
Upstream fix: b0f271d1db
The NimBLE host buffers that consume a significant amount of memory are
now allocated dynamically.
The advantage is that, the memory can be reclaimed in cases where BLE
is turned off and not required for the current boot cycle
- Add menuconfig option for NimBLE host flow control
- Include changes in `blecent` example from upstream PR!702
- add ble_hs_lock in ble_gap_unpair Upstream PR!584
- ble_hs_hci_rx_evt, upstream PR!738
1. Add wifi stop check at wifi deinit entry.
2. Add TX packets size check.
3. Reduce wifi bin size.
4. Fix the bug for setting channel when wifi in NULL mode.
5. Place the Vendor Specific element at the end according to the protocol.
6. Coex adjust scheme when bt is in connnected status.
The global interrupts will be disabled before taking current
time for scheduling further bluetooth events. Earlier disabling
interrupts was taking some time because of which WiFi events were
interrupting in current bluetooth scheduling.
Also fixes ble crash issue triggered by ble event irq miss (0x20000).
1. The fault signal 3 for unit 2 is corrected to the right value
2. Now `mcpwm_fault_set_oneshot_mode` will clear the status before, no
need to reset the peripheral.
3. The capture feature relies on the prescaler, but it's only
initialized in the mcpwm_init funciton, which is used to initialize a
PWM channel. This means, the capture may not work correctly if no PWM
channel is enabled.
Now the prescaler is also updated when `mcpwm_capture_enable` is
called.
Fix an error of mesh deinit lock.
Fix mesh send returns TIMEOUT.
Increase root window close time to 120s.
Clear ie.child when the child connected or fully associated.
Update rc_rssi when roots direct/forward.
ix assoc in mesh ie wrong.
Mesh packets use AC_VI instead of AC_BE.
this issue is mainly exposed when using larger (4096) client key in TLS mutual auth,
since it uses multiplications > 2048 when mbedtls_mpi_mul_mpi is used in recursion,
which works only if both operands point to different location than result since
mpi_mult_mpi_overlong() called mbedtls_mpi_grow() to reallocate buffers used in previous
pointer arithmetics and thus corrupting it. Fixed by growing the mpi buffer before
calling mpi_mult_mpi_overlong()
components/esp_wifi: improve coexistence performance according to specific WiFi/BT/BLE scienario (Backport v3.3)
See merge request espressif/esp-idf!7410
1. Improve WiFi throughput in some Classic BT scienarios(idle, inquire scan,
connected, sniff, a2dp pause, etc).
2. Support WiFi + Classic BT + BLE mesh coexistence scienario.
3. Improve WiFi scan and connect succeed ratio in coexistence scienario.
4. Do not support to choose software coexistence preference anymore for it is
determined according to coexistence scienario automatically.
components/lwip: increase TCP send buffer and receive window limitation when TCP window scale is enabled
components/ble_mesh: Fix some bugs about ble mesh
1. fix send acl pkt after ble have sent terminate ind modify min adv interval to 10ms.
1. BLE Mesh Core
* Provisioning: Node Role
* PB-ADV and PB-GATT
* Authentication OOB
* Provisioning: Provisioner Role
* PB-ADV and PB-GATT
* Authentication OOB
* Networking
* Relay
* Segmentation and Reassembly
* Key Refresh
* IV Update
* Proxy Support
* Multiple Client Models Run Simultaneously
* Support multiple client models send packets to different nodes simultaneously
* No blocking between client model and server
* NVS Storage
* Store BLE Mesh node related information in flash
* Store BLE Mesh Provisioner related information in flash
2. BLE Mesh Models
* Foundation Models
* Configuration Server Model
* Configuration Client Model
* Health Server Model
* Health Client Model
* Generic
* Generic OnOff Server
* Generic OnOff Client
* Generic Level Server
* Generic Level Client
* Generic Default Transition Time Server
* Generic Default Transition Time Client
* Generic Power OnOff Server
* Generic Power OnOff Setup Server
* Generic Power OnOff Client
* Generic Power Level Server
* Generic Power Level Setup Server
* Generic Power Level Client
* Generic Battery Server
* Generic Battery Client
* Generic Location Server
* Generic Location Setup Server
* Generic Location Client
* Generic Admin Property Server
* Generic Manufacturer Property Server
* Generic User Property Server
* Generic Client Property Server
* Generic Property Client
* Sensor Server Model
* Sensor Server
* Sensor Setup Server
* Sensor Client
* Time and Scenes
* Time Server
* Time Setup Server
* Time Client
* Scene Server
* Scene Setup Server
* Scene Client
* Scheduler Server
* Scheduler Setup Server
* Scheduler Client
* Lighting
* Light Lightness Server
* Light Lightness Setup Server
* Light Lightness Client
* Light CTL Server
* Light CTL Setup Server
* Light CTL Client
* Light CTL Temperature Server
* Light HSL Server
* Light HSL Setup Server
* Light HSL Client
* Light HSL Hue Server
* Light HSL Saturation Server
* Light xyL Server
* Light xyL Setup Server
* Light xyL Client
* Light LC Server
* Light LC Setup Server
* Light LC Client
3. BLE Mesh Applications
* BLE Mesh Node
* OnOff Client Example
* OnOff Server Example
* BLE Mesh Provisioner
* Example
* Fast Provisioning
* Vendor Fast Prov Server Model
* Vendor Fast Prov Client Model
* Examples
* Wi-Fi & BLE Mesh Coexistence
* Example
* BLE Mesh Console Commands
* Examples
Even if frame->exccause != PANIC_RSN_CACHEERR, it is possible that
the cache error interrupt status is set. For example, this may happen
due to an invalid cache access in the panic handler itself.
Check cache error interrupt status instead of frame->exccause to
decide whether to do CPU reset or digital reset.
Also remove unnecessary esp_dport_access_int_pause from
esp_cache_err_get_cpuid, since the panic handler already calls
esp_dport_access_int_abort on entry.
Fix A2DP stuck when BLE's interval is too small
Bugfix that bluetooth controller may not be able to enter sleep after end of wake up request
Fix LMP sniff req timeout
components/esp_https_ota: Changes in public requirement list for CMake and esp_ota_ops.h is included in esp_https_ota.c
bootloader_support is added in public requirements of CMake
bootloader_common.h is included in esp_https_ota.h
Closes https://github.com/espressif/esp-idf/issues/4198
Closes IDFGH-2066
Current implimentation of esp_http_ota does not perform any error-checking in the data writing phase calls `esp_ota_get_next_update_partition()` irrespetive of the received state of the image. A few additional error checking mechanism have now been added inside the esp_https_ota which returns the control in case an invalid header is received and a wrapper to the function `esp_http_client_is_complete_data_received()` of `esp_http_client` has been added.
While downloading OTA firmware, if their is a Origin Respnse Timeout or the binary is only partially downloaded, OTA failure is observed. Checking binary size can also be helpful for simple http client applications.
Closes https://github.com/espressif/esp-idf/issues/3004
If an application wants to use webserver, instead of creating another
webserver instance, the wifi provisioning manager can re-use the same.
The webserver handle can be passed using this new API.
Signed-off-by: Piyush Shah <piyush@espressif.com>
Regression introduced in commit 79e74e5d5f
It is possible that some FreeRTOS APIs are invoked prior to
scheduler start condition (e.g. flash initialization in unicore mode).
In that condition these asserts should not trigger (scheduler state being yet to be started),
hence changes per this fix.
This commit fixes thread safety issues with configASSERT() calls
regarding the value of uxSchedulerSuspended. A false negative
occurs if a context switch to the opposite core occurs in between
the getting the core ID and the assesment.
Closes https://github.com/espressif/esp-idf/issues/4230
arg1 = MAX(int64_t arg1, uint64_t arg2) gave the wrong result, if arg1 < 0, it was presented as a larger value.
And ALARM_REG = (uin32_t)arg1. This leads to an infinite loop.
Fixed: both args are int64_t.
Closes: WIFI-1511
1. Fix WiFi scan leads to poor performance of Bluetooth.
2. Improve WiFi connect success ratio when coexist with Bluetooth.
3. Check if WiFi is still connected when CSA or beacon timeout happen.
4. add coex pre init
These features are not supported in the CMake build system preview, but previously
had to read the notice in the CMake Getting Started guide to know this.
Related to https://github.com/espressif/esp-idf/issues/4419
Sometimes, libphy.a call phy_enter_critical() to protect accessing critical sections, such like
operating on I2C, but it may not effect when both the CPU core call it. It may cause accessing
I2C blocking and cannot recover by esp_restart(), until do HW reboot.
The workaround for PSRAM that will occupy an SPI bus is enabled only when:
1. used on 32MBit ver 0 PSRAM.
2. work at 80MHz.
The test used to only check 32MBit by the config option, but for PSRAM
on Wrover-B module seems to use a newer version of 32MBit PSRAM. So it
expects the workaround to be enabled, but actually not.
This commit split the unit test into two parts:
1. check all SPI buses are available, for all configs except psram_hspi
and psram_vspi, run on regular runners (including Wrover and Wrover-B).
a hidden option is enabled so that the compiler knows it's not building
psram_hspi or psram_vspi.
2. check the specified bus are acquired, for config psram_hspi and
psram_vspi. This only run on special runner (legacy Wrover module).
Some APs incorrectly advertize newer WPS2.0 config method bits
without setting bits for the corresponding older methods. This
results in failures during 8-way handshake. Add a workaround to
relax this check so that WPS handshake can proceed.
1. Fix high beacon and broadcast packets loss ratio of WiFi to make
MDNS test pass.
2. Improve stability of WiFi performance with a little
sacrifice of throughput.
3. Improve BLE advertising and connection performance with dynamic
priority. It sacrifices a little WiFi throughput, but achieves balance
between WiFi and Bluetooth.
4. fix bug bb reset lock flag to avoid bb reset lock unhandle
5. fix bug wifi reset mac cause task watch dog timeout
6. fix bug wifi reset mac position
1. Since BLE full-scan feature for BLE mesh change the controller code cause this problem,
it cause coex semaphore take in "interrupt disable", then it may cause task schedule
and cause crash in freertos
2. Fix newlib lock ISR context and critical section check
3. Fix bt controller ISR context and critical section check
This commit fixes multiple bugs caused by incorrect calls to
can_enter_reset_mode() and can_exit_reset_mode. Example test
scripts also updated to match new runners.
Basically, in the portability layer, it is checked if the socket is
NON-block, and if not, then even the EAGAIN and EWOULDBLOCK errors are
diverted to a RECV error. This causes a problem for sockets with
receive timeouts set. When such a timeout is set, the condition for
NON_BLOCK isn't met and hence a hard error is returned.
Searching for EAGAIN and EWOULDBLOCK in lwip returns only 3 results
(accept, recvfrom, close) and all of them look to be genuine cases for
EWOULDBLOCK. So removing this check to make receive timeout with TLS
work.
Includes all the latest NimBLE stack changes from idf-v4.0 with few idf-v3.3
specific modifications.
- Addition of nimble component as submodule (`nimble-1.1.0-idf-v3.3`), contains
IDF v3.3 specific minor changes.
- Example applications are identical to idf-v4.0
- Modification in `bt/Kconfig` to accommodate NimBLE as a BT host.