Runtime configuration

The Bluetooth Mesh runtime configuration API allows applications to change their runtime configuration directly, without going through the Configuration models.

Bluetooth Mesh nodes should generally be configured by a central network configurator device with a Configuration Client model. Each mesh node instantiates a Configuration Server model that the Config Client can communicate with to change the node configuration. In some cases, the mesh node can’t rely on the Config Client to detect or determine local constraints, such as low battery power or changes in topology. For these scenarios, this API can be used to change the configuration locally.

API reference

group bt_mesh_cfg

Bluetooth Mesh Runtime Configuration API.

Defines

BT_MESH_RELAY_DISABLED
BT_MESH_RELAY_ENABLED
BT_MESH_RELAY_NOT_SUPPORTED
BT_MESH_BEACON_DISABLED
BT_MESH_BEACON_ENABLED
BT_MESH_GATT_PROXY_DISABLED
BT_MESH_GATT_PROXY_ENABLED
BT_MESH_GATT_PROXY_NOT_SUPPORTED
BT_MESH_FRIEND_DISABLED
BT_MESH_FRIEND_ENABLED
BT_MESH_FRIEND_NOT_SUPPORTED
BT_MESH_NODE_IDENTITY_STOPPED
BT_MESH_NODE_IDENTITY_RUNNING
BT_MESH_NODE_IDENTITY_NOT_SUPPORTED

Enums

enum bt_mesh_feat_state

Bluetooth Mesh Feature states

Values:

enumerator BT_MESH_FEATURE_DISABLED

Feature is supported, but disabled.

enumerator BT_MESH_FEATURE_ENABLED

Feature is supported and enabled.

enumerator BT_MESH_FEATURE_NOT_SUPPORTED

Feature is not supported, and cannot be enabled.

Functions

void bt_mesh_beacon_set(bool beacon)

Enable or disable sending of the Secure Network Beacon.

Parameters

  • beacon: New Secure Network Beacon state.

bool bt_mesh_beacon_enabled(void)

Get the current Secure Network Beacon state.

Return

Whether the Secure Network Beacon feature is enabled.

int bt_mesh_default_ttl_set(uint8_t default_ttl)

Set the default TTL value.

The default TTL value is used when no explicit TTL value is set. Models will use the default TTL value when bt_mesh_msg_ctx::send_ttl is BT_MESH_TTL_DEFAULT.

Parameters

  • default_ttl: The new default TTL value. Valid values are 0x00 and 0x02 to BT_MESH_TTL_MAX.

Return Value

  • 0: Successfully set the default TTL value.

  • -EINVAL: Invalid TTL value.

uint8_t bt_mesh_default_ttl_get(void)

Get the current default TTL value.

Return

The current default TTL value.

void bt_mesh_net_transmit_set(uint8_t xmit)

Set the Network Transmit parameters.

The Network Transmit parameters determine the parameters local messages are transmitted with.

See

BT_MESH_TRANSMIT

Parameters

uint8_t bt_mesh_net_transmit_get(void)

Get the current Network Transmit parameters.

The BT_MESH_TRANSMIT_COUNT and BT_MESH_TRANSMIT_INT macros can be used to decode the Network Transmit parameters.

Return

The current Network Transmit parameters.

int bt_mesh_relay_set(enum bt_mesh_feat_state relay, uint8_t xmit)

Configure the Relay feature.

Enable or disable the Relay feature, and configure the parameters to transmit relayed messages with.

Support for the Relay feature must be enabled through the CONFIG_BT_MESH_RELAY configuration option.

See

BT_MESH_TRANSMIT

Parameters
Return Value

  • 0: Successfully changed the Relay configuration.

  • -ENOTSUP: The Relay feature is not supported.

  • -EINVAL: Invalid parameter.

  • -EALREADY: Already using the given parameters.

enum bt_mesh_feat_state bt_mesh_relay_get(void)

Get the current Relay feature state.

Return

The Relay feature state.

uint8_t bt_mesh_relay_retransmit_get(void)

Get the current Relay Retransmit parameters.

The BT_MESH_TRANSMIT_COUNT and BT_MESH_TRANSMIT_INT macros can be used to decode the Relay Retransmit parameters.

Return

The current Relay Retransmit parameters, or 0 if relay is not supported.

int bt_mesh_gatt_proxy_set(enum bt_mesh_feat_state gatt_proxy)

Enable or disable the GATT Proxy feature.

Support for the GATT Proxy feature must be enabled through the CONFIG_BT_MESH_GATT_PROXY configuration option.

Note

The GATT Proxy feature only controls a Proxy node’s ability to relay messages to the mesh network. A node that supports GATT Proxy will still advertise Connectable Proxy beacons, even if the feature is disabled. The Proxy feature can only be fully disabled through compile time configuration.

Parameters
Return Value

  • 0: Successfully changed the GATT Proxy feature state.

  • -ENOTSUP: The GATT Proxy feature is not supported.

  • -EINVAL: Invalid parameter.

  • -EALREADY: Already in the given state.

enum bt_mesh_feat_state bt_mesh_gatt_proxy_get(void)

Get the current GATT Proxy state.

Return

The GATT Proxy feature state.

int bt_mesh_friend_set(enum bt_mesh_feat_state friendship)

Enable or disable the Friend feature.

Any active friendships will be terminated immediately if the Friend feature is disabled.

Support for the Friend feature must be enabled through the CONFIG_BT_MESH_FRIEND configuration option.

Parameters
Return Value

  • 0: Successfully changed the Friend feature state.

  • -ENOTSUP: The Friend feature is not supported.

  • -EINVAL: Invalid parameter.

  • -EALREADY: Already in the given state.

enum bt_mesh_feat_state bt_mesh_friend_get(void)

Get the current Friend state.

Return

The Friend feature state.