# Kconfig - Bluetooth Mesh configuration options

#
# Copyright (c) 2017 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
#

menuconfig BT_MESH
	bool "Smart Mesh support"
	select TINYCRYPT
	select TINYCRYPT_AES
	select TINYCRYPT_AES_CMAC
	help
	  This option enables Smart Mesh support. The specific features
	  that will be available is dependent on other features that have
	  been enabled in the stack, such as GATT support.

if BT_MESH

# Virtual option enabled whenever Generic Provisioning layer is needed
config BT_MESH_PROV
	bool

config BT_MESH_PB_ADV
	bool "Provisioning support using the advertising bearer (PB-ADV)"
	select BT_MESH_PROV
	default y
	help
	  Enable this option to allow the device to be provisioned over
	  the advertising bearer.

if BT_CONN

# Virtual option enabled whenever any Proxy protocol is needed
config BT_MESH_PROXY
	bool

config BT_MESH_PB_GATT
	bool "Provisioning support using GATT (PB-GATT)"
	select BT_MESH_PROXY
	select BT_MESH_PROV
	help
	  Enable this option to allow the device to be provisioned over
	  GATT.

config BT_MESH_GATT_PROXY
	bool "GATT Proxy Service"
	select BT_MESH_PROXY
	help
	  This option enables support for the Mesh GATT Proxy Service,
	  i.e. the ability to act as a proxy between a Mesh GATT Client
	  and a Mesh network.

if BT_MESH_PROXY

config BT_MESH_PROXY_FILTER_SIZE
	int "Maximum number of filter entries per Proxy Client"
	default 1
	default 3 if BT_MESH_GATT_PROXY
	range 1 32767
	help
	  This option specifies how many Proxy Filter entries the local
	  node supports.

endif # BT_MESH_PROXY

endif # BT_CONN

config BT_MESH_LOCAL_INTERFACE
	bool "Local network interface"
	default y
	help
	  This is needed in order to send messages between two local Mesh
	  elements. Only disable it if you're sure this will not be needed
	  (which helps save a little bit of memory).

config BT_MESH_SELF_TEST
	bool "Perform self-tests"
	help
	  This option adds extra self-tests which are run every time
	  mesh networking is initialized.

config BT_MESH_IV_UPDATE_TEST
	bool "Test the IV Update Procedure"
	help
	  This option removes the 96 hour limit of the IV Update
	  Procedure and lets the state be changed at any time.

config BT_MESH_SUBNET_COUNT
	int "Maximum number of mesh subnets per network"
	default 1
	range 1 4096
	help
	  This option specifies how many subnets a Mesh network can
	  participate in at the same time.

config BT_MESH_APP_KEY_COUNT
	int "Maximum number of application keys per network"
	default 1
	range 1 4096
	help
	  This option specifies how many application keys the device can
	  store per network.

config BT_MESH_MODEL_KEY_COUNT
	int "Maximum number of application keys per model"
	default 1
	range 1 4096
	help
	  This option specifies how many application keys each model can
	  at most be bound to.

config BT_MESH_MODEL_GROUP_COUNT
	int "Maximum number of group address subscriptions per model"
	default 1
	range 1 4096
	help
	  This option specifies how many group addresses each model can
	  at most be subscribed to.

config BT_MESH_LABEL_COUNT
	int "Maximum number of Label UUIDs used for Virtual Addresses"
	default 1
	range 0 4096
	help
	  This option specifies how many Label UUIDs can be stored.

config BT_MESH_CRPL
	int "Maximum capacity of the replay protection list"
	default 10
	range 2 65535
	help
	  This options specifies the maximum capacity of the replay
	  protection list. This option is similar to the network message
	  cache size, but has a different purpose.

config BT_MESH_MSG_CACHE_SIZE
	int "Network message cache size"
	default 10
	range 2 65535
	help
	  Number of messages that are cached for the network. This helps
	  prevent unnecessary decryption operations and unnecessary
	  relays. This option is similar to the replay protection list,
	  but has a different purpose.

config BT_MESH_ADV_BUF_COUNT
	int "Number of advertising buffers"
	default 6
	range 6 256
	help
	  Number of advertising buffers available. The transport layer
	  reserves ADV_BUF_COUNT - 3 buffers for outgoing segments. The
	  maximum outgoing SDU size is 12 times this number (out of which
	  4 or 8 bytes is used for the Transport Layer MIC). For
	  example, 5 segments means the maximum SDU size is 60 bytes,
	  which leaves 56 bytes for application layer data using a
	  4-byte MIC and 52 bytes using an 8-byte MIC.

config BT_MESH_TX_SEG_MSG_COUNT
	int "Maximum number of simultaneous outgoing segmented messages"
	default 1
	range 1 BT_MESH_ADV_BUF_COUNT
	help
	  Maximum number of simultaneous outgoing multi-segment and/or
	  reliable messages.

config BT_MESH_RX_SEG_MSG_COUNT
	int "Maximum number of simultaneous incoming segmented messages"
	default 1
	range 1 255
	help
	  Maximum number of simultaneous incoming multi-segment and/or
	  reliable messages.

config BT_MESH_RX_SDU_MAX
	int "Maximum incoming Upper Transport Access PDU length"
	default 384
	range 36 384
	help
	  Maximum incoming Upper Transport Access PDU length. Leave this
	  to the default value, unless you really need to optimize memory
	  usage.

config BT_MESH_RELAY
	bool "Relay support"
	help
	  Support for acting as a Mesh Relay Node.

config BT_MESH_LOW_POWER
	bool "Support for Low Power features"
	help
	  Enable this option to be able to act as a Low Power Node.

if BT_MESH_LOW_POWER
config BT_MESH_LPN_RSSI_FACTOR
	int "RSSIFactor, used in the Friend Offer Delay calculation"
	range 0 3
	default 0
	help
	  The contribution of the RSSI measured by the Friend node used
	  in Friend Offer Delay calculations. 0 = 1, 1 = 1.5, 2 = 2, 3 = 2.5.

config BT_MESH_LPN_RECV_WIN_FACTOR
	int "ReceiveWindowFactor, used in the Friend Offer Delay calculation"
	range 0 3
	default 0
	help
	  The contribution of the supported Receive Window used in
	  Friend Offer Delay calculations. 0 = 1, 1 = 1.5, 2 = 2, 3 = 2.5.

config BT_MESH_LPN_MIN_QUEUE_SIZE
	int "Minimum size of acceptable friend queue (MinQueueSizeLog)"
	range 1 7
	default 1
	help
	  The MinQueueSizeLog field is defined as log_2(N), where N is
	  the minimum number of maximum size Lower Transport PDUs that
	  the Friend node can store in its Friend Queue. As an example,
	  MinQueueSizeLog value 1 gives N = 2, and value 7 gives N = 128.

config BT_MESH_LPN_RECV_DELAY
	int "Receive delay requested by the local node"
	range 10 255
	default 20
	help
	  The ReceiveDelay is the time between the Low Power node
	  sending a request and listening for a response. This delay
	  allows the Friend node time to prepare the response. The value
	  is in units of milliseconds.

config BT_MESH_LPN_POLL_TIMEOUT
	int "The initial value of the PollTimeout timer"
	range 10 244735
	default 100
	help
	  PollTimeout timer is used to measure time between two
	  consecutive requests sent by the Low Power node. If no
	  requests are received by the Friend node before the
	  PollTimeout timer expires, then the friendship is considered
	  terminated. The value is in units of 100 milliseconds.

config BT_MESH_LPN_SCAN_LATENCY
	int "Latency for enabling scanning"
	range 0 50
	default 10
	help
	  Latency in milliseconds that it takes to enable scanning. This
	  is in practice how much time in advance before the Receive Window
	  that scanning is requested to be enabled.

config BT_MESH_LPN_GROUPS
	int "Number of groups the LPN can subscribe to"
	range 0 16384
	default 8
	help
	  Maximum number of groups that the LPN can subscribe to.
endif # BT_MESH_LOW_POWER

config BT_MESH_FRIEND
	bool "Support for acting as a Friend Node"
	help
	  Enable this option to be able to act as a Friend Node.

if BT_MESH_FRIEND

config BT_MESH_FRIEND_RECV_WIN
	int "Friend Receive Window"
	range 1 255
	default 255
	help
	  Receive Window in milliseconds supported by the Friend node.

config BT_MESH_FRIEND_QUEUE_SIZE
	int "Friend Queue Size"
	range 1 BT_MESH_ADV_BUF_COUNT
	default 16
	help
	  Queue Size available on the Friend node.

config BT_MESH_FRIEND_SUB_LIST_SIZE
	int "Friend Subscription List Size"
	range 1 255
	default 16
	help
	  Size of the Subscription List that can be supported by a
	  Friend node for a Low Power node.

config BT_MESH_FRIEND_LPN_COUNT
	int "Number of supported LPN nodes"
	range 1 1000
	default 1
	help
	  Number of Low Power Nodes the Friend can have a Friendship
	  with simultaneously.

endif # BT_MESH_FRIEND

config BT_MESH_DEBUG
	bool "Enable debug logs"
	depends on BT_DEBUG
	help
	  Use this option to enable debug logs for the Bluetooth
	  Mesh functionality.

if BT_MESH_DEBUG

config BT_MESH_DEBUG_NET
	bool "Network layer debug"
	help
	  Use this option to enable Network layer debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_TRANS
	bool "Transport layer debug"
	help
	  Use this option to enable Transport layer debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_BEACON
	bool "Beacon debug"
	help
	  Use this option to enable Beacon-related debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_CRYPTO
	bool "Crypto debug"
	help
	  Use this option to enable cryptographic debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_PROV
	bool "Provisioning debug"
	help
	  Use this option to enable Provisioning debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_ACCESS
	bool "Access layer debug"
	help
	  Use this option to enable Access layer and device composition
	  related debug logs for Bluetooth Mesh.

config BT_MESH_DEBUG_MODEL
	bool "Foundation model debug"
	help
	  Use this option to enable debug logs for the Foundation
	  Models.

config BT_MESH_DEBUG_ADV
	bool "Advertising debug"
	help
	  Use this option to enable advertising debug logs for
	  the Bluetooth Mesh functionality.

config BT_MESH_DEBUG_LOW_POWER
	bool "Low Power debug"
	help
	  Use this option to enable Low Power debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_FRIEND
	bool "Friend debug"
	help
	  Use this option to enable Friend debug logs for the
	  Bluetooth Mesh functionality.

config BT_MESH_DEBUG_PROXY
	bool "Proxy debug"
	depends on BT_MESH_PROXY
	help
	  Use this option to enable Proxy protocol debug logs.

endif # BT_MESH_DEBUG

endif # BT_MESH