General

This module includes functions for all Thread roles.

Summary

The Network Data Publisher provides mechanisms to limit the number of similar Service and/or Prefix (on-mesh prefix or external route) entries in the Thread Network Data by monitoring the Network Data and managing if or when to add or remove entries.

All the functions in this module require OPENTHREAD_CONFIG_NETDATA_PUBLISHER_ENABLE to be enabled.

Note: The functions in this module require OPENTHREAD_FTD=1 or OPENTHREAD_MTD=1.

Enumerations
anonymous enum{   OT_NETWORK_DIAGNOSTIC_TLV_EXT_ADDRESS = 0,   OT_NETWORK_DIAGNOSTIC_TLV_SHORT_ADDRESS = 1,   OT_NETWORK_DIAGNOSTIC_TLV_MODE = 2,   OT_NETWORK_DIAGNOSTIC_TLV_TIMEOUT = 3,   OT_NETWORK_DIAGNOSTIC_TLV_CONNECTIVITY = 4,   OT_NETWORK_DIAGNOSTIC_TLV_ROUTE = 5,   OT_NETWORK_DIAGNOSTIC_TLV_LEADER_DATA = 6,   OT_NETWORK_DIAGNOSTIC_TLV_NETWORK_DATA = 7,   OT_NETWORK_DIAGNOSTIC_TLV_IP6_ADDR_LIST = 8,   OT_NETWORK_DIAGNOSTIC_TLV_MAC_COUNTERS = 9,   OT_NETWORK_DIAGNOSTIC_TLV_BATTERY_LEVEL = 14,   OT_NETWORK_DIAGNOSTIC_TLV_SUPPLY_VOLTAGE = 15,   OT_NETWORK_DIAGNOSTIC_TLV_CHILD_TABLE = 16,   OT_NETWORK_DIAGNOSTIC_TLV_CHANNEL_PAGES = 17,   OT_NETWORK_DIAGNOSTIC_TLV_TYPE_LIST = 18,   OT_NETWORK_DIAGNOSTIC_TLV_MAX_CHILD_TIMEOUT = 19 }	enum
otDeviceRole{   OT_DEVICE_ROLE_DISABLED = 0,   OT_DEVICE_ROLE_DETACHED = 1,   OT_DEVICE_ROLE_CHILD = 2,   OT_DEVICE_ROLE_ROUTER = 3,   OT_DEVICE_ROLE_LEADER = 4 }	enum Represents a Thread device role.
otNetDataPublisherEvent{   OT_NETDATA_PUBLISHER_EVENT_ENTRY_ADDED = 0,   OT_NETDATA_PUBLISHER_EVENT_ENTRY_REMOVED = 1 }	enum This enumeration represents the events reported from the Publisher callbacks.
otRoutePreference{   OT_ROUTE_PREFERENCE_LOW = -1,   OT_ROUTE_PREFERENCE_MED = 0,   OT_ROUTE_PREFERENCE_HIGH = 1 }	enum Defines valid values for mPreference in otExternalRouteConfig and otBorderRouterConfig.

Typedefs
otBorderRouterConfig	typedef struct otBorderRouterConfig This structure represents a Border Router configuration.
otExternalRouteConfig	typedef struct otExternalRouteConfig This structure represents an External Route configuration.
otIpCounters	typedef struct otIpCounters This structure represents the IP level counters.
otLeaderData	typedef struct otLeaderData This structure represents the Thread Leader Data.
otLinkModeConfig	typedef struct otLinkModeConfig This structure represents an MLE Link Mode configuration.
otMleCounters	typedef struct otMleCounters This structure represents the Thread MLE counters.
otNeighborInfoIterator	typedef int16_t Used to iterate through neighbor table.
otNetDataDnsSrpServicePublisherCallback)(otNetDataPublisherEvent aEvent, void *aContext)	typedef void(* This function pointer type defines the callback used to notify when a "DNS/SRP Service" entry is added to or removed from the Thread Network Data.
otNetDataPrefixPublisherCallback)(otNetDataPublisherEvent aEvent, const otIp6Prefix *aPrefix, void *aContext)	typedef void(* This function pointer type defines the callback used to notify when a prefix (on-mesh or external route) entry is added to or removed from the Thread Network Data.
otNetDataPublisherEvent	typedef enum otNetDataPublisherEvent This enumeration represents the events reported from the Publisher callbacks.
otNetworkDataIterator	typedef uint32_t Used to iterate through Network Data information.
otNetworkDiagChildEntry	typedef struct otNetworkDiagChildEntry This structure represents a Network Diagnostic Child Table Entry.
otNetworkDiagConnectivity	typedef struct otNetworkDiagConnectivity This structure represents a Network Diagnostic Connectivity value.
otNetworkDiagIterator	typedef uint16_t Used to iterate through Network Diagnostic TLV.
otNetworkDiagMacCounters	typedef struct otNetworkDiagMacCounters This structure represents a Network Diagnostic Mac Counters value.
otNetworkDiagRoute	typedef struct otNetworkDiagRoute This structure represents a Network Diagnostic Route TLV value.
otNetworkDiagRouteData	typedef struct otNetworkDiagRouteData This structure represents a Network Diagnostic Route data.
otNetworkDiagTlv	typedef struct otNetworkDiagTlv This structure represents a Network Diagnostic TLV.
otReceiveDiagnosticGetCallback)(otError aError, otMessage *aMessage, const otMessageInfo *aMessageInfo, void *aContext)	typedef void(* This function pointer is called when Network Diagnostic Get response is received.
otRoutePreference	typedef enum otRoutePreference Defines valid values for mPreference in otExternalRouteConfig and otBorderRouterConfig.
otServerConfig	typedef struct otServerConfig This structure represents a Server configuration.
otServiceConfig	typedef struct otServiceConfig This structure represents a Service configuration.
otThreadAnycastLocatorCallback)(void *aContext, otError aError, const otIp6Address *aMeshLocalAddress, uint16_t aRloc16)	typedef void(* This function pointer type defines the callback to notify the outcome of a otThreadLocateAnycastDestination() request.
otThreadDiscoveryRequestCallback)(const otThreadDiscoveryRequestInfo *aInfo, void *aContext)	typedef void(* This function pointer is called every time an MLE Discovery Request message is received.
otThreadDiscoveryRequestInfo	typedef struct otThreadDiscoveryRequestInfo This structure represents the Thread Discovery Request data.
otThreadParentResponseCallback)(otThreadParentResponseInfo *aInfo, void *aContext)	typedef void(* This function pointer is called every time an MLE Parent Response message is received.
otThreadParentResponseInfo	typedef struct otThreadParentResponseInfo This structure represents the MLE Parent Response data.

Functions
otNetDataContainsOmrPrefix(otInstance *aInstance, const otIp6Prefix *aPrefix)	bool This function checks whether a given Prefix can act as a valid OMR prefix and also the Leader's Network Data contains this prefix.
otNetDataGet(otInstance *aInstance, bool aStable, uint8_t *aData, uint8_t *aDataLength)	otError This method provides a full or stable copy of the Partition's Thread Network Data.
otNetDataGetNextOnMeshPrefix(otInstance *aInstance, otNetworkDataIterator *aIterator, otBorderRouterConfig *aConfig)	otError This function gets the next On Mesh Prefix in the partition's Network Data.
otNetDataGetNextRoute(otInstance *aInstance, otNetworkDataIterator *aIterator, otExternalRouteConfig *aConfig)	otError This function gets the next external route in the partition's Network Data.
otNetDataGetNextService(otInstance *aInstance, otNetworkDataIterator *aIterator, otServiceConfig *aConfig)	otError This function gets the next service in the partition's Network Data.
otNetDataGetStableVersion(otInstance *aInstance)	uint8_t Get the Stable Network Data Version.
otNetDataGetVersion(otInstance *aInstance)	uint8_t Get the Network Data Version.
otNetDataIsDnsSrpServiceAdded(otInstance *aInstance)	bool This function indicates whether or not currently the "DNS/SRP Service" entry is added to the Thread Network Data.
otNetDataIsPrefixAdded(otInstance *aInstance, const otIp6Prefix *aPrefix)	bool This function indicates whether or not currently a published prefix entry (on-mesh or external route) is added to the Thread Network Data.
otNetDataPublishDnsSrpServiceAnycast(otInstance *aInstance, uint8_t aSequenceNUmber)	void This function requests "DNS/SRP Service Anycast Address" to be published in the Thread Network Data.
otNetDataPublishDnsSrpServiceUnicast(otInstance *aInstance, const otIp6Address *aAddress, uint16_t aPort)	void This function requests "DNS/SRP Service Unicast Address" to be published in the Thread Network Data.
otNetDataPublishDnsSrpServiceUnicastMeshLocalEid(otInstance *aInstance, uint16_t aPort)	void This function requests "DNS/SRP Service Unicast Address" to be published in the Thread Network Data.
otNetDataPublishExternalRoute(otInstance *aInstance, const otExternalRouteConfig *aConfig)	otError This function requests an external route prefix to be published in the Thread Network Data.
otNetDataPublishOnMeshPrefix(otInstance *aInstance, const otBorderRouterConfig *aConfig)	otError This function requests an on-mesh prefix to be published in the Thread Network Data.
otNetDataSetDnsSrpServicePublisherCallback(otInstance *aInstance, otNetDataDnsSrpServicePublisherCallback aCallback, void *aContext)	void This function sets a callback for notifying when a published "DNS/SRP Service" is actually added to or removed from the Thread Network Data.
otNetDataSetPrefixPublisherCallback(otInstance *aInstance, otNetDataPrefixPublisherCallback aCallback, void *aContext)	void This function sets a callback for notifying when a published prefix entry is actually added to or removed from the Thread Network Data.
otNetDataSteeringDataCheckJoiner(otInstance *aInstance, const otExtAddress *aEui64)	otError Check if the steering data includes a Joiner.
otNetDataSteeringDataCheckJoinerWithDiscerner(otInstance *aInstance, const struct otJoinerDiscerner *aDiscerner)	otError Check if the steering data includes a Joiner with a given discerner value.
otNetDataUnpublishDnsSrpService(otInstance *aInstance)	void This function unpublishes any previously added "DNS/SRP (Anycast or Unicast) Service" entry from the Thread Network Data.
otNetDataUnpublishPrefix(otInstance *aInstance, const otIp6Prefix *aPrefix)	otError This function unpublishes a previously published prefix (on-mesh or external route).
otThreadBecomeChild(otInstance *aInstance)	otError Attempt to reattach as a child.
otThreadBecomeDetached(otInstance *aInstance)	otError Detach from the Thread network.
otThreadDeviceRoleToString(otDeviceRole aRole)	const char * Convert the device role to human-readable string.
otThreadDiscover(otInstance *aInstance, uint32_t aScanChannels, uint16_t aPanId, bool aJoiner, bool aEnableEui64Filtering, otHandleActiveScanResult aCallback, void *aCallbackContext)	otError This function starts a Thread Discovery scan.
otThreadGetChildTimeout(otInstance *aInstance)	uint32_t Get the Thread Child Timeout used when operating in the Child role.
otThreadGetDeviceRole(otInstance *aInstance)	otDeviceRole Get the device role.
otThreadGetDomainName(otInstance *aInstance)	const char * Get the Thread Domain Name.
otThreadGetExtendedPanId(otInstance *aInstance)	const otExtendedPanId * Get the IEEE 802.15.4 Extended PAN ID.
otThreadGetFixedDuaInterfaceIdentifier(otInstance *aInstance)	const otIp6InterfaceIdentifier * Get the Interface Identifier manually specified for the Thread Domain Unicast Address.
otThreadGetIp6Counters(otInstance *aInstance)	const otIpCounters * Get the IPv6 counters.
otThreadGetKeySequenceCounter(otInstance *aInstance)	uint32_t Get the thrKeySequenceCounter.
otThreadGetKeySwitchGuardTime(otInstance *aInstance)	uint32_t Get the thrKeySwitchGuardTime.
otThreadGetLeaderData(otInstance *aInstance, otLeaderData *aLeaderData)	otError This function get the Thread Leader Data.
otThreadGetLeaderRloc(otInstance *aInstance, otIp6Address *aLeaderRloc)	otError This function returns a pointer to the Leader's RLOC.
otThreadGetLeaderRouterId(otInstance *aInstance)	uint8_t Get the Leader's Router ID.
otThreadGetLeaderWeight(otInstance *aInstance)	uint8_t Get the Leader's Weight.
otThreadGetLinkLocalAllThreadNodesMulticastAddress(otInstance *aInstance)	const otIp6Address * This function returns the Thread Link-Local All Thread Nodes multicast address.
otThreadGetLinkLocalIp6Address(otInstance *aInstance)	const otIp6Address * This function returns the Thread link-local IPv6 address.
otThreadGetLinkMode(otInstance *aInstance)	otLinkModeConfig Get the MLE Link Mode configuration.
otThreadGetMeshLocalEid(otInstance *aInstance)	const otIp6Address * This function returns a pointer to the Mesh Local EID address.
otThreadGetMeshLocalPrefix(otInstance *aInstance)	const otMeshLocalPrefix * This function returns a pointer to the Mesh Local Prefix.
otThreadGetMleCounters(otInstance *aInstance)	const otMleCounters * Get the Thread MLE counters.
otThreadGetNetworkKey(otInstance *aInstance, otNetworkKey *aNetworkKey)	void Get the Thread Network Key.
otThreadGetNetworkKeyRef(otInstance *aInstance)	otNetworkKeyRef Get the otNetworkKeyRef for Thread Network Key.
otThreadGetNetworkName(otInstance *aInstance)	const char * Get the Thread Network Name.
otThreadGetNextDiagnosticTlv(const otMessage *aMessage, otNetworkDiagIterator *aIterator, otNetworkDiagTlv *aNetworkDiagTlv)	otError This function gets the next Network Diagnostic TLV in the message.
otThreadGetNextNeighborInfo(otInstance *aInstance, otNeighborInfoIterator *aIterator, otNeighborInfo *aInfo)	otError This function gets the next neighbor information.
otThreadGetParentAverageRssi(otInstance *aInstance, int8_t *aParentRssi)	otError The function retrieves the average RSSI for the Thread Parent.
otThreadGetParentInfo(otInstance *aInstance, otRouterInfo *aParentInfo)	otError The function retrieves diagnostic information for a Thread Router as parent.
otThreadGetParentLastRssi(otInstance *aInstance, int8_t *aLastRssi)	otError The function retrieves the RSSI of the last packet from the Thread Parent.
otThreadGetPartitionId(otInstance *aInstance)	uint32_t Get the Partition ID.
otThreadGetRealmLocalAllThreadNodesMulticastAddress(otInstance *aInstance)	const otIp6Address * This function returns the Thread Realm-Local All Thread Nodes multicast address.
otThreadGetRloc(otInstance *aInstance)	const otIp6Address * This function returns a pointer to the Thread Routing Locator (RLOC) address.
otThreadGetRloc16(otInstance *aInstance)	uint16_t Get the RLOC16.
otThreadGetServiceAloc(otInstance *aInstance, uint8_t aServiceId, otIp6Address *aServiceAloc)	otError This function retrieves the Service ALOC for given Service ID.
otThreadGetVersion(void)	uint16_t This function gets the Thread protocol version.
otThreadIsAnycastLocateInProgress(otInstance *aInstance)	bool This function indicates whether an anycast locate request is currently in progress.
otThreadIsDiscoverInProgress(otInstance *aInstance)	bool This function determines if an MLE Thread Discovery is currently in progress.
otThreadIsSingleton(otInstance *aInstance)	bool This function indicates whether a node is the only router on the network.
otThreadLocateAnycastDestination(otInstance *aInstance, const otIp6Address *aAnycastAddress, otThreadAnycastLocatorCallback aCallback, void *aContext)	otError This function requests the closest destination of a given anycast address to be located.
otThreadRegisterParentResponseCallback(otInstance *aInstance, otThreadParentResponseCallback aCallback, void *aContext)	void This function registers a callback to receive MLE Parent Response data.
otThreadResetIp6Counters(otInstance *aInstance)	void Reset the IPv6 counters.
otThreadResetMleCounters(otInstance *aInstance)	void Reset the Thread MLE counters.
otThreadSendAddressNotification(otInstance *aInstance, otIp6Address *aDestination, otIp6Address *aTarget, otIp6InterfaceIdentifier *aMlIid)	void This function sends a Proactive Address Notification (ADDR_NTF.ntf) message.
otThreadSendDiagnosticGet(otInstance *aInstance, const otIp6Address *aDestination, const uint8_t aTlvTypes[], uint8_t aCount, otReceiveDiagnosticGetCallback aCallback, void *aCallbackContext)	otError Send a Network Diagnostic Get request.
otThreadSendDiagnosticReset(otInstance *aInstance, const otIp6Address *aDestination, const uint8_t aTlvTypes[], uint8_t aCount)	otError Send a Network Diagnostic Reset request.
otThreadSendProactiveBackboneNotification(otInstance *aInstance, otIp6Address *aTarget, otIp6InterfaceIdentifier *aMlIid, uint32_t aTimeSinceLastTransaction)	otError This function sends a Proactive Backbone Notification (PRO_BB.ntf) message on the Backbone link.
otThreadSetChildTimeout(otInstance *aInstance, uint32_t aTimeout)	void Set the Thread Child Timeout used when operating in the Child role.
otThreadSetDiscoveryRequestCallback(otInstance *aInstance, otThreadDiscoveryRequestCallback aCallback, void *aContext)	void This function sets a callback to receive MLE Discovery Request data.
otThreadSetDomainName(otInstance *aInstance, const char *aDomainName)	otError Set the Thread Domain Name.
otThreadSetEnabled(otInstance *aInstance, bool aEnabled)	otError This function starts Thread protocol operation.
otThreadSetExtendedPanId(otInstance *aInstance, const otExtendedPanId *aExtendedPanId)	otError Set the IEEE 802.15.4 Extended PAN ID.
otThreadSetFixedDuaInterfaceIdentifier(otInstance *aInstance, const otIp6InterfaceIdentifier *aIid)	otError Set/Clear the Interface Identifier manually specified for the Thread Domain Unicast Address.
otThreadSetJoinerAdvertisement(otInstance *aInstance, uint32_t aOui, const uint8_t *aAdvData, uint8_t aAdvDataLength)	otError This method sets the Thread Joiner Advertisement when discovering Thread network.
otThreadSetKeySequenceCounter(otInstance *aInstance, uint32_t aKeySequenceCounter)	void Set the thrKeySequenceCounter.
otThreadSetKeySwitchGuardTime(otInstance *aInstance, uint32_t aKeySwitchGuardTime)	void Set the thrKeySwitchGuardTime.
otThreadSetLinkMode(otInstance *aInstance, otLinkModeConfig aConfig)	otError Set the MLE Link Mode configuration.
otThreadSetMeshLocalPrefix(otInstance *aInstance, const otMeshLocalPrefix *aMeshLocalPrefix)	otError This function sets the Mesh Local Prefix.
otThreadSetNetworkKey(otInstance *aInstance, const otNetworkKey *aKey)	otError Set the Thread Network Key.
otThreadSetNetworkKeyRef(otInstance *aInstance, otNetworkKeyRef aKeyRef)	otError Set the Thread Network Key as a otNetworkKeyRef.
otThreadSetNetworkName(otInstance *aInstance, const char *aNetworkName)	otError Set the Thread Network Name.

Structs
otBorderRouterConfig	This structure represents a Border Router configuration.
otExternalRouteConfig	This structure represents an External Route configuration.
otIpCounters	This structure represents the IP level counters.
otLeaderData	This structure represents the Thread Leader Data.
otLinkModeConfig	This structure represents an MLE Link Mode configuration.
otMleCounters	This structure represents the Thread MLE counters.
otNeighborInfo	This structure holds diagnostic information for a neighboring Thread node.
otNetworkDiagChildEntry	This structure represents a Network Diagnostic Child Table Entry.
otNetworkDiagConnectivity	This structure represents a Network Diagnostic Connectivity value.
otNetworkDiagMacCounters	This structure represents a Network Diagnostic Mac Counters value.
otNetworkDiagRoute	This structure represents a Network Diagnostic Route TLV value.
otNetworkDiagRouteData	This structure represents a Network Diagnostic Route data.
otNetworkDiagTlv	This structure represents a Network Diagnostic TLV.
otRouterInfo	This structure holds diagnostic information for a Thread Router.
otServerConfig	This structure represents a Server configuration.
otServiceConfig	This structure represents a Service configuration.
otThreadDiscoveryRequestInfo	This structure represents the Thread Discovery Request data.
otThreadParentResponseInfo	This structure represents the MLE Parent Response data.

Enumerations

anonymous enum

 anonymous enum

Properties
OT_NETWORK_DIAGNOSTIC_TLV_BATTERY_LEVEL	Battery Level TLV.
OT_NETWORK_DIAGNOSTIC_TLV_CHANNEL_PAGES	Channel Pages TLV.
OT_NETWORK_DIAGNOSTIC_TLV_CHILD_TABLE	Child Table TLV.
OT_NETWORK_DIAGNOSTIC_TLV_CONNECTIVITY	Connectivity TLV.
OT_NETWORK_DIAGNOSTIC_TLV_EXT_ADDRESS	MAC Extended Address TLV.
OT_NETWORK_DIAGNOSTIC_TLV_IP6_ADDR_LIST	IPv6 Address List TLV.
OT_NETWORK_DIAGNOSTIC_TLV_LEADER_DATA	Leader Data TLV.
OT_NETWORK_DIAGNOSTIC_TLV_MAC_COUNTERS	MAC Counters TLV.
OT_NETWORK_DIAGNOSTIC_TLV_MAX_CHILD_TIMEOUT	Max Child Timeout TLV.
OT_NETWORK_DIAGNOSTIC_TLV_MODE	Mode TLV.
OT_NETWORK_DIAGNOSTIC_TLV_NETWORK_DATA	Network Data TLV.
OT_NETWORK_DIAGNOSTIC_TLV_ROUTE	Route64 TLV.
OT_NETWORK_DIAGNOSTIC_TLV_SHORT_ADDRESS	Address16 TLV.
OT_NETWORK_DIAGNOSTIC_TLV_SUPPLY_VOLTAGE	Supply Voltage TLV.
OT_NETWORK_DIAGNOSTIC_TLV_TIMEOUT	Timeout TLV (the maximum polling time period for SEDs)
OT_NETWORK_DIAGNOSTIC_TLV_TYPE_LIST	Type List TLV.

otDeviceRole

 otDeviceRole

Represents a Thread device role.

Properties
OT_DEVICE_ROLE_CHILD	The Thread Child role.
OT_DEVICE_ROLE_DETACHED	Not currently participating in a Thread network/partition.
OT_DEVICE_ROLE_DISABLED	The Thread stack is disabled.
OT_DEVICE_ROLE_LEADER	The Thread Leader role.
OT_DEVICE_ROLE_ROUTER	The Thread Router role.

otNetDataPublisherEvent

 otNetDataPublisherEvent

This enumeration represents the events reported from the Publisher callbacks.

Properties
OT_NETDATA_PUBLISHER_EVENT_ENTRY_ADDED	Published entry is added to the Thread Network Data.
OT_NETDATA_PUBLISHER_EVENT_ENTRY_REMOVED	Published entry is removed from the Thread Network Data.

otRoutePreference

 otRoutePreference

Defines valid values for mPreference in otExternalRouteConfig and otBorderRouterConfig.

Properties
OT_ROUTE_PREFERENCE_HIGH	High route preference.
OT_ROUTE_PREFERENCE_LOW	Low route preference.
OT_ROUTE_PREFERENCE_MED	Medium route preference.

Typedefs

otBorderRouterConfig

struct otBorderRouterConfig otBorderRouterConfig

This structure represents a Border Router configuration.

otExternalRouteConfig

struct otExternalRouteConfig otExternalRouteConfig

This structure represents an External Route configuration.

otIpCounters

struct otIpCounters otIpCounters

This structure represents the IP level counters.

otLeaderData

struct otLeaderData otLeaderData

This structure represents the Thread Leader Data.

otLinkModeConfig

struct otLinkModeConfig otLinkModeConfig

This structure represents an MLE Link Mode configuration.

otMleCounters

struct otMleCounters otMleCounters

This structure represents the Thread MLE counters.

otNeighborInfoIterator

int16_t otNeighborInfoIterator

Used to iterate through neighbor table.

otNetDataDnsSrpServicePublisherCallback

void(* otNetDataDnsSrpServicePublisherCallback)(otNetDataPublisherEvent aEvent, void *aContext)

This function pointer type defines the callback used to notify when a "DNS/SRP Service" entry is added to or removed from the Thread Network Data.

On remove the callback is invoked independent of whether the entry is removed by Publisher (e.g., when there are too many similar entries already present in the Network Data) or through an explicit call to unpublish the entry (i.e., a call to otNetDataUnpublishDnsSrpService()).

Details
Parameters	[in] aEvent Indicates the event (whether the entry was added or removed). [in] aContext A pointer to application-specific context.

otNetDataPrefixPublisherCallback

void(* otNetDataPrefixPublisherCallback)(otNetDataPublisherEvent aEvent, const otIp6Prefix *aPrefix, void *aContext)

This function pointer type defines the callback used to notify when a prefix (on-mesh or external route) entry is added to or removed from the Thread Network Data.

On remove the callback is invoked independent of whether the entry is removed by Publisher (e.g., when there are too many similar entries already present in the Network Data) or through an explicit call to unpublish the entry.

Details
Parameters	[in] aEvent Indicates the event (whether the entry was added or removed). [in] aPrefix A pointer to the prefix entry. [in] aContext A pointer to application-specific context.

otNetDataPublisherEvent

enum otNetDataPublisherEvent otNetDataPublisherEvent

This enumeration represents the events reported from the Publisher callbacks.

otNetworkDataIterator

uint32_t otNetworkDataIterator

Used to iterate through Network Data information.

otNetworkDiagChildEntry

struct otNetworkDiagChildEntry otNetworkDiagChildEntry

This structure represents a Network Diagnostic Child Table Entry.

otNetworkDiagConnectivity

struct otNetworkDiagConnectivity otNetworkDiagConnectivity

This structure represents a Network Diagnostic Connectivity value.

otNetworkDiagIterator

uint16_t otNetworkDiagIterator

Used to iterate through Network Diagnostic TLV.

otNetworkDiagMacCounters

struct otNetworkDiagMacCounters otNetworkDiagMacCounters

This structure represents a Network Diagnostic Mac Counters value.

See RFC 2863 for definitions of member fields.

otNetworkDiagRoute

struct otNetworkDiagRoute otNetworkDiagRoute

This structure represents a Network Diagnostic Route TLV value.

otNetworkDiagRouteData

struct otNetworkDiagRouteData otNetworkDiagRouteData

This structure represents a Network Diagnostic Route data.

otNetworkDiagTlv

struct otNetworkDiagTlv otNetworkDiagTlv

This structure represents a Network Diagnostic TLV.

otReceiveDiagnosticGetCallback

void(* otReceiveDiagnosticGetCallback)(otError aError, otMessage *aMessage, const otMessageInfo *aMessageInfo, void *aContext)

This function pointer is called when Network Diagnostic Get response is received.

Details
Parameters	[in] aError The error when failed to get the response. [in] aMessage A pointer to the message buffer containing the received Network Diagnostic Get response payload. Available only when aError is OT_ERROR_NONE. [in] aMessageInfo A pointer to the message info for aMessage. Available only when aError is OT_ERROR_NONE. [in] aContext A pointer to application-specific context.

otRoutePreference

enum otRoutePreference otRoutePreference

Defines valid values for mPreference in otExternalRouteConfig and otBorderRouterConfig.

otServerConfig

struct otServerConfig otServerConfig

This structure represents a Server configuration.

otServiceConfig

struct otServiceConfig otServiceConfig

This structure represents a Service configuration.

otThreadAnycastLocatorCallback

void(* otThreadAnycastLocatorCallback)(void *aContext, otError aError, const otIp6Address *aMeshLocalAddress, uint16_t aRloc16)

This function pointer type defines the callback to notify the outcome of a otThreadLocateAnycastDestination() request.

Details

Parameters

[in] aContext A pointer to an arbitrary context (provided when callback is registered). [in] aError The error when handling the request. OT_ERROR_NONE indicates success. OT_ERROR_RESPONSE_TIMEOUT indicates a destination could not be found. OT_ERROR_ABORT indicates the request was aborted. [in] aMeshLocalAddress A pointer to the mesh-local EID of the closest destination of the anycast address when aError is OT_ERROR_NONE, NULL otherwise. [in] aRloc16 The RLOC16 of the destination if found, otherwise invalid RLOC16 (0xfffe).

otThreadDiscoveryRequestCallback

void(* otThreadDiscoveryRequestCallback)(const otThreadDiscoveryRequestInfo *aInfo, void *aContext)

This function pointer is called every time an MLE Discovery Request message is received.

Details
Parameters	[in] aInfo A pointer to the Discovery Request info data. [in] aContext A pointer to callback application-specific context.

otThreadDiscoveryRequestInfo

struct otThreadDiscoveryRequestInfo otThreadDiscoveryRequestInfo

This structure represents the Thread Discovery Request data.

otThreadParentResponseCallback

void(* otThreadParentResponseCallback)(otThreadParentResponseInfo *aInfo, void *aContext)

This function pointer is called every time an MLE Parent Response message is received.

Details
Parameters	[in] aInfo A pointer to a location on stack holding the stats data. [in] aContext A pointer to callback client-specific context.

otThreadParentResponseInfo

struct otThreadParentResponseInfo otThreadParentResponseInfo

This structure represents the MLE Parent Response data.

Functions

otNetDataContainsOmrPrefix

bool otNetDataContainsOmrPrefix(
  otInstance *aInstance,
  const otIp6Prefix *aPrefix
)

This function checks whether a given Prefix can act as a valid OMR prefix and also the Leader's Network Data contains this prefix.

Note: This API is only available when OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE is used.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aPrefix A pointer to the IPv6 prefix.
Returns	Whether aPrefix is a valid OMR prefix and Leader's Network Data contains the OMR prefix aPrefix.

otNetDataGet

otError otNetDataGet(
  otInstance *aInstance,
  bool aStable,
  uint8_t *aData,
  uint8_t *aDataLength
)

This method provides a full or stable copy of the Partition's Thread Network Data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aStable TRUE when copying the stable version, FALSE when copying the full version. [out] aData A pointer to the data buffer. [in,out] aDataLength On entry, size of the data buffer pointed to by aData. On exit, number of copied bytes.

otNetDataGetNextOnMeshPrefix

otError otNetDataGetNextOnMeshPrefix(
  otInstance *aInstance,
  otNetworkDataIterator *aIterator,
  otBorderRouterConfig *aConfig
)

This function gets the next On Mesh Prefix in the partition's Network Data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in,out] aIterator A pointer to the Network Data iterator context. To get the first on-mesh entry it should be set to OT_NETWORK_DATA_ITERATOR_INIT. [out] aConfig A pointer to where the On Mesh Prefix information will be placed.
Return Values	OT_ERROR_NONE Successfully found the next On Mesh prefix. OT_ERROR_NOT_FOUND No subsequent On Mesh prefix exists in the Thread Network Data.

otNetDataGetNextRoute

otError otNetDataGetNextRoute(
  otInstance *aInstance,
  otNetworkDataIterator *aIterator,
  otExternalRouteConfig *aConfig
)

This function gets the next external route in the partition's Network Data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in,out] aIterator A pointer to the Network Data iterator context. To get the first external route entry it should be set to OT_NETWORK_DATA_ITERATOR_INIT. [out] aConfig A pointer to where the External Route information will be placed.
Return Values	OT_ERROR_NONE Successfully found the next External Route. OT_ERROR_NOT_FOUND No subsequent external route entry exists in the Thread Network Data.

otNetDataGetNextService

otError otNetDataGetNextService(
  otInstance *aInstance,
  otNetworkDataIterator *aIterator,
  otServiceConfig *aConfig
)

This function gets the next service in the partition's Network Data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in,out] aIterator A pointer to the Network Data iterator context. To get the first service entry it should be set to OT_NETWORK_DATA_ITERATOR_INIT. [out] aConfig A pointer to where the service information will be placed.
Return Values	OT_ERROR_NONE Successfully found the next service. OT_ERROR_NOT_FOUND No subsequent service exists in the partition's Network Data.

otNetDataGetStableVersion

uint8_t otNetDataGetStableVersion(
  otInstance *aInstance
)

Get the Stable Network Data Version.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The Stable Network Data Version.

otNetDataGetVersion

uint8_t otNetDataGetVersion(
  otInstance *aInstance
)

Get the Network Data Version.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The Network Data Version.

otNetDataIsDnsSrpServiceAdded

bool otNetDataIsDnsSrpServiceAdded(
  otInstance *aInstance
)

This function indicates whether or not currently the "DNS/SRP Service" entry is added to the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Return Values	TRUE The published DNS/SRP Service entry is added to the Thread Network Data. FALSE The entry is not added to Thread Network Data or there is no entry to publish.

otNetDataIsPrefixAdded

bool otNetDataIsPrefixAdded(
  otInstance *aInstance,
  const otIp6Prefix *aPrefix
)

This function indicates whether or not currently a published prefix entry (on-mesh or external route) is added to the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aPrefix A pointer to the prefix (MUST NOT be NULL).
Return Values	TRUE The published prefix entry is added to the Thread Network Data. FALSE The entry is not added to Thread Network Data or there is no entry to publish.

otNetDataPublishDnsSrpServiceAnycast

void otNetDataPublishDnsSrpServiceAnycast(
  otInstance *aInstance,
  uint8_t aSequenceNUmber
)

This function requests "DNS/SRP Service Anycast Address" to be published in the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE to be enabled.

A call to this function will remove and replace any previous "DNS/SRP Service" entry that was being published (from earlier call to any of otNetDataPublishDnsSrpService{Type}() functions).

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aSequenceNUmber The sequence number of DNS/SRP Anycast Service.

otNetDataPublishDnsSrpServiceUnicast

void otNetDataPublishDnsSrpServiceUnicast(
  otInstance *aInstance,
  const otIp6Address *aAddress,
  uint16_t aPort
)

This function requests "DNS/SRP Service Unicast Address" to be published in the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE to be enabled.

A call to this function will remove and replace any previous "DNS/SRP Service" entry that was being published (from earlier call to any of otNetDataPublishDnsSrpService{Type}() functions).

This function publishes the "DNS/SRP Service Unicast Address" by including the address and port info in the Service TLV data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aAddress The DNS/SRP server address to publish (MUST NOT be NULL). [in] aPort The SRP server port number to publish.

otNetDataPublishDnsSrpServiceUnicastMeshLocalEid

void otNetDataPublishDnsSrpServiceUnicastMeshLocalEid(
  otInstance *aInstance,
  uint16_t aPort
)

This function requests "DNS/SRP Service Unicast Address" to be published in the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE to be enabled.

A call to this function will remove and replace any previous "DNS/SRP Service" entry that was being published (from earlier call to any of otNetDataPublishDnsSrpService{Type}() functions).

Unlike otNetDataPublishDnsSrpServiceUnicast() which requires the published address to be given and includes the info in the Service TLV data, this function uses the device's mesh-local EID and includes the info in the Server TLV data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aPort The SRP server port number to publish.

otNetDataPublishExternalRoute

otError otNetDataPublishExternalRoute(
  otInstance *aInstance,
  const otExternalRouteConfig *aConfig
)

This function requests an external route prefix to be published in the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE to be enabled.

Only stable entries can be published (i.e.,aConfig.mStable MUST be TRUE).

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aConfig The external route config to publish (MUST NOT be NULL).
Return Values	OT_ERROR_NONE The external route is published successfully. OT_ERROR_INVALID_ARGS The aConfig is not valid (bad prefix, invalid flag combinations, or not stable). OT_ERROR_ALREADY An entry with the same prefix is already in the published list. OT_ERROR_NO_BUFS Could not allocate an entry for the new request. Publisher supports a limited number of entries (shared between on-mesh prefix and external route) determined by config OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES.

otNetDataPublishOnMeshPrefix

otError otNetDataPublishOnMeshPrefix(
  otInstance *aInstance,
  const otBorderRouterConfig *aConfig
)

This function requests an on-mesh prefix to be published in the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE to be enabled.

Only stable entries can be published (i.e.,aConfig.mStable MUST be TRUE).

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aConfig The on-mesh prefix config to publish (MUST NOT be NULL).
Return Values	OT_ERROR_NONE The on-mesh prefix is published successfully. OT_ERROR_INVALID_ARGS The aConfig is not valid (bad prefix, invalid flag combinations, or not stable). OT_ERROR_ALREADY An entry with the same prefix is already in the published list. OT_ERROR_NO_BUFS Could not allocate an entry for the new request. Publisher supports a limited number of entries (shared between on-mesh prefix and external route) determined by config OPENTHREAD_CONFIG_NETDATA_PUBLISHER_MAX_PREFIX_ENTRIES.

otNetDataSetDnsSrpServicePublisherCallback

void otNetDataSetDnsSrpServicePublisherCallback(
  otInstance *aInstance,
  otNetDataDnsSrpServicePublisherCallback aCallback,
  void *aContext
)

This function sets a callback for notifying when a published "DNS/SRP Service" is actually added to or removed from the Thread Network Data.

A subsequent call to this function replaces any previously set callback function.

This function requires the feature OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aCallback The callback function pointer (can be NULL if not needed). [in] aContext A pointer to application-specific context (used when aCallback is invoked).

otNetDataSetPrefixPublisherCallback

void otNetDataSetPrefixPublisherCallback(
  otInstance *aInstance,
  otNetDataPrefixPublisherCallback aCallback,
  void *aContext
)

This function sets a callback for notifying when a published prefix entry is actually added to or removed from the Thread Network Data.

A subsequent call to this function replaces any previously set callback function.

This function requires the feature OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aCallback The callback function pointer (can be NULL if not needed). [in] aContext A pointer to application-specific context (used when aCallback is invoked).

otNetDataSteeringDataCheckJoiner

otError otNetDataSteeringDataCheckJoiner(
  otInstance *aInstance,
  const otExtAddress *aEui64
)

Check if the steering data includes a Joiner.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aEui64 A pointer to the Joiner's IEEE EUI-64.
Return Values	OT_ERROR_NONE aEui64 is included in the steering data. OT_ERROR_INVALID_STATE No steering data present. OT_ERROR_NOT_FOUND aEui64 is not included in the steering data.

otNetDataSteeringDataCheckJoinerWithDiscerner

otError otNetDataSteeringDataCheckJoinerWithDiscerner(
  otInstance *aInstance,
  const struct otJoinerDiscerner *aDiscerner
)

Check if the steering data includes a Joiner with a given discerner value.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aDiscerner A pointer to the Joiner Discerner.
Return Values	OT_ERROR_NONE aDiscerner is included in the steering data. OT_ERROR_INVALID_STATE No steering data present. OT_ERROR_NOT_FOUND aDiscerner is not included in the steering data.

otNetDataUnpublishDnsSrpService

void otNetDataUnpublishDnsSrpService(
  otInstance *aInstance
)

This function unpublishes any previously added "DNS/SRP (Anycast or Unicast) Service" entry from the Thread Network Data.

This function requires the feature OPENTHREAD_CONFIG_TMF_NETDATA_SERVICE_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.

otNetDataUnpublishPrefix

otError otNetDataUnpublishPrefix(
  otInstance *aInstance,
  const otIp6Prefix *aPrefix
)

This function unpublishes a previously published prefix (on-mesh or external route).

This function requires the feature OPENTHREAD_CONFIG_BORDER_ROUTER_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aPrefix The prefix to unpublish (MUST NOT be NULL).
Return Values	OT_ERROR_NONE The prefix was unpublished successfully. OT_ERROR_NOT_FOUND Could not find the prefix in the published list.

otThreadBecomeChild

otError otThreadBecomeChild(
  otInstance *aInstance
)

Attempt to reattach as a child.

Note: This API is reserved for testing and demo purposes only. Changing settings with this API will render a production application non-compliant with the Thread Specification.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Return Values	OT_ERROR_NONE Successfully begin attempt to become a child. OT_ERROR_INVALID_STATE Thread is disabled.

otThreadBecomeDetached

otError otThreadBecomeDetached(
  otInstance *aInstance
)

Detach from the Thread network.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Return Values	OT_ERROR_NONE Successfully detached from the Thread network. OT_ERROR_INVALID_STATE Thread is disabled.

otThreadDeviceRoleToString

const char * otThreadDeviceRoleToString(
  otDeviceRole aRole
)

Convert the device role to human-readable string.

Details
Parameters	[in] aRole The device role to convert.
Returns	A string representing aRole.

otThreadDiscover

otError otThreadDiscover(
  otInstance *aInstance,
  uint32_t aScanChannels,
  uint16_t aPanId,
  bool aJoiner,
  bool aEnableEui64Filtering,
  otHandleActiveScanResult aCallback,
  void *aCallbackContext
)

This function starts a Thread Discovery scan.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aScanChannels A bit vector indicating which channels to scan (e.g. OT_CHANNEL_11_MASK). [in] aPanId The PAN ID filter (set to Broadcast PAN to disable filter). [in] aJoiner Value of the Joiner Flag in the Discovery Request TLV. [in] aEnableEui64Filtering TRUE to filter responses on EUI-64, FALSE otherwise. [in] aCallback A pointer to a function called on receiving an MLE Discovery Response or scan completes. [in] aCallbackContext A pointer to application-specific context.
Return Values	OT_ERROR_NONE Successfully started a Thread Discovery Scan. OT_ERROR_INVALID_STATE The IPv6 interface is not enabled (netif is not up). OT_ERROR_NO_BUFS Could not allocate message for Discovery Request. OT_ERROR_BUSY Thread Discovery Scan is already in progress.

otThreadGetChildTimeout

uint32_t otThreadGetChildTimeout(
  otInstance *aInstance
)

Get the Thread Child Timeout used when operating in the Child role.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The Thread Child Timeout value in seconds.

See also:
otThreadSetChildTimeout

otThreadGetDeviceRole

otDeviceRole otThreadGetDeviceRole(
  otInstance *aInstance
)

Get the device role.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Return Values	OT_DEVICE_ROLE_DISABLED The Thread stack is disabled. OT_DEVICE_ROLE_DETACHED The device is not currently participating in a Thread network/partition. OT_DEVICE_ROLE_CHILD The device is currently operating as a Thread Child. OT_DEVICE_ROLE_ROUTER The device is currently operating as a Thread Router. OT_DEVICE_ROLE_LEADER The device is currently operating as a Thread Leader.

otThreadGetDomainName

const char * otThreadGetDomainName(
  otInstance *aInstance
)

Get the Thread Domain Name.

This function is only available since Thread 1.2.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Thread Domain Name.

See also:
otThreadSetDomainName

otThreadGetExtendedPanId

const otExtendedPanId * otThreadGetExtendedPanId(
  otInstance *aInstance
)

Get the IEEE 802.15.4 Extended PAN ID.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the IEEE 802.15.4 Extended PAN ID.

See also:
otThreadSetExtendedPanId

otThreadGetFixedDuaInterfaceIdentifier

const otIp6InterfaceIdentifier * otThreadGetFixedDuaInterfaceIdentifier(
  otInstance *aInstance
)

Get the Interface Identifier manually specified for the Thread Domain Unicast Address.

This function is only available since Thread 1.2 when OPENTHREAD_CONFIG_DUA_ENABLE is enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Interface Identifier which was set manually, or NULL if none was set.

See also:
otThreadSetFixedDuaInterfaceIdentifier

otThreadGetIp6Counters

const otIpCounters * otThreadGetIp6Counters(
  otInstance *aInstance
)

Get the IPv6 counters.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the IPv6 counters.

otThreadGetKeySequenceCounter

uint32_t otThreadGetKeySequenceCounter(
  otInstance *aInstance
)

Get the thrKeySequenceCounter.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The thrKeySequenceCounter value.

See also:
otThreadSetKeySequenceCounter

otThreadGetKeySwitchGuardTime

uint32_t otThreadGetKeySwitchGuardTime(
  otInstance *aInstance
)

Get the thrKeySwitchGuardTime.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The thrKeySwitchGuardTime value (in hours).

See also:
otThreadSetKeySwitchGuardTime

otThreadGetLeaderData

otError otThreadGetLeaderData(
  otInstance *aInstance,
  otLeaderData *aLeaderData
)

This function get the Thread Leader Data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [out] aLeaderData A pointer to where the leader data is placed.
Return Values	OT_ERROR_NONE Successfully retrieved the leader data. OT_ERROR_DETACHED Not currently attached.

otThreadGetLeaderRloc

otError otThreadGetLeaderRloc(
  otInstance *aInstance,
  otIp6Address *aLeaderRloc
)

This function returns a pointer to the Leader's RLOC.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [out] aLeaderRloc A pointer to the Leader's RLOC.
Return Values	OT_ERROR_NONE The Leader's RLOC was successfully written to aLeaderRloc. OT_ERROR_INVALID_ARGS aLeaderRloc was NULL. OT_ERROR_DETACHED Not currently attached to a Thread Partition.

otThreadGetLeaderRouterId

uint8_t otThreadGetLeaderRouterId(
  otInstance *aInstance
)

Get the Leader's Router ID.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The Leader's Router ID.

otThreadGetLeaderWeight

uint8_t otThreadGetLeaderWeight(
  otInstance *aInstance
)

Get the Leader's Weight.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The Leader's Weight.

otThreadGetLinkLocalAllThreadNodesMulticastAddress

const otIp6Address * otThreadGetLinkLocalAllThreadNodesMulticastAddress(
  otInstance *aInstance
)

This function returns the Thread Link-Local All Thread Nodes multicast address.

The address is a link-local Unicast Prefix-Based Multcast Address [RFC 3306], with:

• flgs set to 3 (P = 1 and T = 1)
• scop set to 2
• plen set to 64
• network prefix set to the Mesh Local Prefix
• group ID set to 1

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to Thread Link-Local All Thread Nodes multicast address.

otThreadGetLinkLocalIp6Address

const otIp6Address * otThreadGetLinkLocalIp6Address(
  otInstance *aInstance
)

This function returns the Thread link-local IPv6 address.

The Thread link local address is derived using IEEE802.15.4 Extended Address as Interface Identifier.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to Thread link-local IPv6 address.

otThreadGetLinkMode

otLinkModeConfig otThreadGetLinkMode(
  otInstance *aInstance
)

Get the MLE Link Mode configuration.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The MLE Link Mode configuration.

See also:
otThreadSetLinkMode

otThreadGetMeshLocalEid

const otIp6Address * otThreadGetMeshLocalEid(
  otInstance *aInstance
)

This function returns a pointer to the Mesh Local EID address.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Mesh Local EID address.

otThreadGetMeshLocalPrefix

const otMeshLocalPrefix * otThreadGetMeshLocalPrefix(
  otInstance *aInstance
)

This function returns a pointer to the Mesh Local Prefix.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Mesh Local Prefix.

otThreadGetMleCounters

const otMleCounters * otThreadGetMleCounters(
  otInstance *aInstance
)

Get the Thread MLE counters.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Thread MLE counters.

otThreadGetNetworkKey

void otThreadGetNetworkKey(
  otInstance *aInstance,
  otNetworkKey *aNetworkKey
)

Get the Thread Network Key.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [out] aNetworkKey A pointer to an otNetworkkey to return the Thread Network Key.

See also:
otThreadSetNetworkKey

otThreadGetNetworkKeyRef

otNetworkKeyRef otThreadGetNetworkKeyRef(
  otInstance *aInstance
)

Get the otNetworkKeyRef for Thread Network Key.

This function requires the build-time feature OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	Reference to the Thread Network Key stored in memory.

See also:
otThreadSetNetworkKeyRef

otThreadGetNetworkName

const char * otThreadGetNetworkName(
  otInstance *aInstance
)

Get the Thread Network Name.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Thread Network Name.

See also:
otThreadSetNetworkName

otThreadGetNextDiagnosticTlv

otError otThreadGetNextDiagnosticTlv(
  const otMessage *aMessage,
  otNetworkDiagIterator *aIterator,
  otNetworkDiagTlv *aNetworkDiagTlv
)

This function gets the next Network Diagnostic TLV in the message.

A subsequent call to this function is allowed only when current return value is OT_ERROR_NONE.

Details
Parameters	[in] aMessage A pointer to a message. [in,out] aIterator A pointer to the Network Diagnostic iterator context. To get the first Network Diagnostic TLV it should be set to OT_NETWORK_DIAGNOSTIC_ITERATOR_INIT. [out] aNetworkDiagTlv A pointer to where the Network Diagnostic TLV information will be placed.
Return Values	OT_ERROR_NONE Successfully found the next Network Diagnostic TLV. OT_ERROR_NOT_FOUND No subsequent Network Diagnostic TLV exists in the message. OT_ERROR_PARSE Parsing the next Network Diagnostic failed.

otThreadGetNextNeighborInfo

otError otThreadGetNextNeighborInfo(
  otInstance *aInstance,
  otNeighborInfoIterator *aIterator,
  otNeighborInfo *aInfo
)

This function gets the next neighbor information.

It is used to go through the entries of the neighbor table.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in,out] aIterator A pointer to the iterator context. To get the first neighbor entry it should be set to OT_NEIGHBOR_INFO_ITERATOR_INIT. [out] aInfo A pointer to the neighbor information.
Return Values	OT_ERROR_NONE Successfully found the next neighbor entry in table. OT_ERROR_NOT_FOUND No subsequent neighbor entry exists in the table. OT_ERROR_INVALID_ARGS aIterator or aInfo was NULL.

otThreadGetParentAverageRssi

otError otThreadGetParentAverageRssi(
  otInstance *aInstance,
  int8_t *aParentRssi
)

The function retrieves the average RSSI for the Thread Parent.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [out] aParentRssi A pointer to where the parent RSSI should be placed.

otThreadGetParentInfo

otError otThreadGetParentInfo(
  otInstance *aInstance,
  otRouterInfo *aParentInfo
)

The function retrieves diagnostic information for a Thread Router as parent.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [out] aParentInfo A pointer to where the parent router information is placed.

otThreadGetParentLastRssi

otError otThreadGetParentLastRssi(
  otInstance *aInstance,
  int8_t *aLastRssi
)

The function retrieves the RSSI of the last packet from the Thread Parent.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [out] aLastRssi A pointer to where the last RSSI should be placed.
Return Values	OT_ERROR_NONE Successfully retrieved the RSSI data. OT_ERROR_FAILED Unable to get RSSI data. OT_ERROR_INVALID_ARGS aLastRssi is NULL.

otThreadGetPartitionId

uint32_t otThreadGetPartitionId(
  otInstance *aInstance
)

Get the Partition ID.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The Partition ID.

otThreadGetRealmLocalAllThreadNodesMulticastAddress

const otIp6Address * otThreadGetRealmLocalAllThreadNodesMulticastAddress(
  otInstance *aInstance
)

This function returns the Thread Realm-Local All Thread Nodes multicast address.

The address is a realm-local Unicast Prefix-Based Multcast Address [RFC 3306], with:

• flgs set to 3 (P = 1 and T = 1)
• scop set to 3
• plen set to 64
• network prefix set to the Mesh Local Prefix
• group ID set to 1

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to Thread Realm-Local All Thread Nodes multicast address.

otThreadGetRloc

const otIp6Address * otThreadGetRloc(
  otInstance *aInstance
)

This function returns a pointer to the Thread Routing Locator (RLOC) address.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	A pointer to the Thread Routing Locator (RLOC) address.

otThreadGetRloc16

uint16_t otThreadGetRloc16(
  otInstance *aInstance
)

Get the RLOC16.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	The RLOC16.

otThreadGetServiceAloc

otError otThreadGetServiceAloc(
  otInstance *aInstance,
  uint8_t aServiceId,
  otIp6Address *aServiceAloc
)

This function retrieves the Service ALOC for given Service ID.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aServiceId Service ID to get ALOC for. [out] aServiceAloc A pointer to output the Service ALOC. MUST NOT BE NULL.
Return Values	OT_ERROR_NONE Successfully retrieved the Service ALOC. OT_ERROR_DETACHED The Thread interface is not currently attached to a Thread Partition.

otThreadGetVersion

uint16_t otThreadGetVersion(
  void
)

This function gets the Thread protocol version.

Details
Returns	the Thread protocol version.

otThreadIsAnycastLocateInProgress

bool otThreadIsAnycastLocateInProgress(
  otInstance *aInstance
)

This function indicates whether an anycast locate request is currently in progress.

This function is only available when OPENTHREAD_CONFIG_TMF_ANYCAST_LOCATOR_ENABLE is enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Returns	TRUE if an anycast locate request is currently in progress, FALSE otherwise.

otThreadIsDiscoverInProgress

bool otThreadIsDiscoverInProgress(
  otInstance *aInstance
)

This function determines if an MLE Thread Discovery is currently in progress.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.

otThreadIsSingleton

bool otThreadIsSingleton(
  otInstance *aInstance
)

This function indicates whether a node is the only router on the network.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.
Return Values	TRUE It is the only router in the network. FALSE It is a child or is not a single router in the network.

otThreadLocateAnycastDestination

otError otThreadLocateAnycastDestination(
  otInstance *aInstance,
  const otIp6Address *aAnycastAddress,
  otThreadAnycastLocatorCallback aCallback,
  void *aContext
)

This function requests the closest destination of a given anycast address to be located.

This function is only available when OPENTHREAD_CONFIG_TMF_ANYCAST_LOCATOR_ENABLE is enabled.

If a previous request is ongoing, a subsequent call to this function will cancel and replace the earlier request.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aAnycastAddress The anycast address to locate. MUST NOT be NULL. [in] aCallback The callback function to report the result. [in] aContext An arbitrary context used with aCallback.
Return Values	OT_ERROR_NONE The request started successfully. aCallback will be invoked to report the result. OT_ERROR_INVALID_ARGS The aAnycastAddress is not a valid anycast address or aCallback is NULL. OT_ERROR_NO_BUFS Out of buffer to prepare and send the request message.

otThreadRegisterParentResponseCallback

void otThreadRegisterParentResponseCallback(
  otInstance *aInstance,
  otThreadParentResponseCallback aCallback,
  void *aContext
)

This function registers a callback to receive MLE Parent Response data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aCallback A pointer to a function that is called upon receiving an MLE Parent Response message. [in] aContext A pointer to callback client-specific context.

otThreadResetIp6Counters

void otThreadResetIp6Counters(
  otInstance *aInstance
)

Reset the IPv6 counters.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.

otThreadResetMleCounters

void otThreadResetMleCounters(
  otInstance *aInstance
)

Reset the Thread MLE counters.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance.

otThreadSendAddressNotification

void otThreadSendAddressNotification(
  otInstance *aInstance,
  otIp6Address *aDestination,
  otIp6Address *aTarget,
  otIp6InterfaceIdentifier *aMlIid
)

This function sends a Proactive Address Notification (ADDR_NTF.ntf) message.

This function is only available when OPENTHREAD_CONFIG_REFERENCE_DEVICE_ENABLE is enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aDestination The destination to send the ADDR_NTF.ntf message. [in] aTarget The target address of the ADDR_NTF.ntf message. [in] aMlIid The ML-IID of the ADDR_NTF.ntf message.

otThreadSendDiagnosticGet

otError otThreadSendDiagnosticGet(
  otInstance *aInstance,
  const otIp6Address *aDestination,
  const uint8_t aTlvTypes[],
  uint8_t aCount,
  otReceiveDiagnosticGetCallback aCallback,
  void *aCallbackContext
)

Send a Network Diagnostic Get request.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aDestination A pointer to destination address. [in] aTlvTypes An array of Network Diagnostic TLV types. [in] aCount Number of types in aTlvTypes. [in] aCallback A pointer to a function that is called when Network Diagnostic Get response is received or NULL to disable the callback. [in] aCallbackContext A pointer to application-specific context.
Return Values	OT_ERROR_NONE Successfully queued the DIAG_GET.req. OT_ERROR_NO_BUFS Insufficient message buffers available to send DIAG_GET.req.

otThreadSendDiagnosticReset

otError otThreadSendDiagnosticReset(
  otInstance *aInstance,
  const otIp6Address *aDestination,
  const uint8_t aTlvTypes[],
  uint8_t aCount
)

Send a Network Diagnostic Reset request.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aDestination A pointer to destination address. [in] aTlvTypes An array of Network Diagnostic TLV types. Currently only Type 9 is allowed. [in] aCount Number of types in aTlvTypes
Return Values	OT_ERROR_NONE Successfully queued the DIAG_RST.ntf. OT_ERROR_NO_BUFS Insufficient message buffers available to send DIAG_RST.ntf.

otThreadSendProactiveBackboneNotification

otError otThreadSendProactiveBackboneNotification(
  otInstance *aInstance,
  otIp6Address *aTarget,
  otIp6InterfaceIdentifier *aMlIid,
  uint32_t aTimeSinceLastTransaction
)

This function sends a Proactive Backbone Notification (PRO_BB.ntf) message on the Backbone link.

This function is only available when OPENTHREAD_CONFIG_REFERENCE_DEVICE_ENABLE is enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aTarget The target address of the PRO_BB.ntf message. [in] aMlIid The ML-IID of the PRO_BB.ntf message. [in] aTimeSinceLastTransaction Time since last transaction (in seconds).
Return Values	OT_ERROR_NONE Successfully sent PRO_BB.ntf on backbone link. OT_ERROR_NO_BUFS If insufficient message buffers available.

otThreadSetChildTimeout

void otThreadSetChildTimeout(
  otInstance *aInstance,
  uint32_t aTimeout
)

Set the Thread Child Timeout used when operating in the Child role.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aTimeout The timeout value in seconds.

See also:
otThreadGetChildTimeout

otThreadSetDiscoveryRequestCallback

void otThreadSetDiscoveryRequestCallback(
  otInstance *aInstance,
  otThreadDiscoveryRequestCallback aCallback,
  void *aContext
)

This function sets a callback to receive MLE Discovery Request data.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aCallback A pointer to a function that is called upon receiving an MLE Discovery Request message. [in] aContext A pointer to callback application-specific context.

otThreadSetDomainName

otError otThreadSetDomainName(
  otInstance *aInstance,
  const char *aDomainName
)

Set the Thread Domain Name.

This function is only available since Thread 1.2. This function succeeds only when Thread protocols are disabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aDomainName A pointer to the Thread Domain Name.
Return Values	OT_ERROR_NONE Successfully set the Thread Domain Name. OT_ERROR_INVALID_STATE Thread protocols are enabled.

See also:
otThreadGetDomainName

otThreadSetEnabled

otError otThreadSetEnabled(
  otInstance *aInstance,
  bool aEnabled
)

This function starts Thread protocol operation.

The interface must be up when calling this function.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aEnabled TRUE if Thread is enabled, FALSE otherwise.
Return Values	OT_ERROR_NONE Successfully started Thread protocol operation. OT_ERROR_INVALID_STATE The network interface was not not up.

otThreadSetExtendedPanId

otError otThreadSetExtendedPanId(
  otInstance *aInstance,
  const otExtendedPanId *aExtendedPanId
)

Set the IEEE 802.15.4 Extended PAN ID.

This function can only be called while Thread protocols are disabled. A successful call to this function invalidates the Active and Pending Operational Datasets in non-volatile memory.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aExtendedPanId A pointer to the IEEE 802.15.4 Extended PAN ID.
Return Values	OT_ERROR_NONE Successfully set the Extended PAN ID. OT_ERROR_INVALID_STATE Thread protocols are enabled.

See also:
otThreadGetExtendedPanId

otThreadSetFixedDuaInterfaceIdentifier

otError otThreadSetFixedDuaInterfaceIdentifier(
  otInstance *aInstance,
  const otIp6InterfaceIdentifier *aIid
)

Set/Clear the Interface Identifier manually specified for the Thread Domain Unicast Address.

This function is only available since Thread 1.2 when OPENTHREAD_CONFIG_DUA_ENABLE is enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aIid A pointer to the Interface Identifier to set or NULL to clear.
Return Values	OT_ERROR_NONE Successfully set/cleared the Interface Identifier. OT_ERROR_INVALID_ARGS The specified Interface Identifier is reserved.

See also:
otThreadGetFixedDuaInterfaceIdentifier

otThreadSetJoinerAdvertisement

otError otThreadSetJoinerAdvertisement(
  otInstance *aInstance,
  uint32_t aOui,
  const uint8_t *aAdvData,
  uint8_t aAdvDataLength
)

This method sets the Thread Joiner Advertisement when discovering Thread network.

Thread Joiner Advertisement is used to allow a Joiner to advertise its own application-specific information (such as Vendor ID, Product ID, Discriminator, etc.) via a newly-proposed Joiner Advertisement TLV, and to make this information available to Commissioners or Commissioner Candidates without human interaction.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aOui The Vendor IEEE OUI value that will be included in the Joiner Advertisement. Only the least significant 3 bytes will be used, and the most significant byte will be ignored. [in] aAdvData A pointer to the AdvData that will be included in the Joiner Advertisement. [in] aAdvDataLength The length of AdvData in bytes.
Return Values	OT_ERROR_NONE Successfully set Joiner Advertisement. OT_ERROR_INVALID_ARGS Invalid AdvData.

otThreadSetKeySequenceCounter

void otThreadSetKeySequenceCounter(
  otInstance *aInstance,
  uint32_t aKeySequenceCounter
)

Set the thrKeySequenceCounter.

Note: This API is reserved for testing and demo purposes only. Changing settings with this API will render a production application non-compliant with the Thread Specification.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aKeySequenceCounter The thrKeySequenceCounter value.

See also:
otThreadGetKeySequenceCounter

otThreadSetKeySwitchGuardTime

void otThreadSetKeySwitchGuardTime(
  otInstance *aInstance,
  uint32_t aKeySwitchGuardTime
)

Set the thrKeySwitchGuardTime.

Note: This API is reserved for testing and demo purposes only. Changing settings with this API will render a production application non-compliant with the Thread Specification.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aKeySwitchGuardTime The thrKeySwitchGuardTime value (in hours).

See also:
otThreadGetKeySwitchGuardTime

otThreadSetLinkMode

otError otThreadSetLinkMode(
  otInstance *aInstance,
  otLinkModeConfig aConfig
)

Set the MLE Link Mode configuration.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aConfig A pointer to the Link Mode configuration.
Return Values	OT_ERROR_NONE Successfully set the MLE Link Mode configuration.

See also:
otThreadGetLinkMode

otThreadSetMeshLocalPrefix

otError otThreadSetMeshLocalPrefix(
  otInstance *aInstance,
  const otMeshLocalPrefix *aMeshLocalPrefix
)

This function sets the Mesh Local Prefix.

This function succeeds only when Thread protocols are disabled. A successful call to this function invalidates the Active and Pending Operational Datasets in non-volatile memory.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aMeshLocalPrefix A pointer to the Mesh Local Prefix.
Return Values	OT_ERROR_NONE Successfully set the Mesh Local Prefix. OT_ERROR_INVALID_STATE Thread protocols are enabled.

otThreadSetNetworkKey

otError otThreadSetNetworkKey(
  otInstance *aInstance,
  const otNetworkKey *aKey
)

Set the Thread Network Key.

This function succeeds only when Thread protocols are disabled. A successful call to this function invalidates the Active and Pending Operational Datasets in non-volatile memory.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aKey A pointer to a buffer containing the Thread Network Key.
Return Values	OT_ERROR_NONE Successfully set the Thread Network Key. OT_ERROR_INVALID_STATE Thread protocols are enabled.

See also:
otThreadGetNetworkKey

otThreadSetNetworkKeyRef

otError otThreadSetNetworkKeyRef(
  otInstance *aInstance,
  otNetworkKeyRef aKeyRef
)

Set the Thread Network Key as a otNetworkKeyRef.

This function succeeds only when Thread protocols are disabled. A successful call to this function invalidates the Active and Pending Operational Datasets in non-volatile memory.

This function requires the build-time feature OPENTHREAD_CONFIG_PLATFORM_KEY_REFERENCES_ENABLE to be enabled.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aKeyRef Reference to the Thread Network Key.
Return Values	OT_ERROR_NONE Successfully set the Thread Network Key. OT_ERROR_INVALID_STATE Thread protocols are enabled.

See also:
otThreadGetNetworkKeyRef

otThreadSetNetworkName

otError otThreadSetNetworkName(
  otInstance *aInstance,
  const char *aNetworkName
)

Set the Thread Network Name.

This function succeeds only when Thread protocols are disabled. A successful call to this function invalidates the Active and Pending Operational Datasets in non-volatile memory.

Details
Parameters	[in] aInstance A pointer to an OpenThread instance. [in] aNetworkName A pointer to the Thread Network Name.
Return Values	OT_ERROR_NONE Successfully set the Thread Network Name. OT_ERROR_INVALID_STATE Thread protocols are enabled.

See also:
otThreadGetNetworkName

Macros

OT_JOINER_ADVDATA_MAX_LENGTH

 OT_JOINER_ADVDATA_MAX_LENGTH 64

Maximum AdvData Length of Joiner Advertisement.

OT_NEIGHBOR_INFO_ITERATOR_INIT

 OT_NEIGHBOR_INFO_ITERATOR_INIT 0

Initializer for otNeighborInfoIterator.

OT_NETWORK_BASE_TLV_MAX_LENGTH

 OT_NETWORK_BASE_TLV_MAX_LENGTH 254

Maximum value length of Thread Base TLV.

OT_NETWORK_DATA_ITERATOR_INIT

 OT_NETWORK_DATA_ITERATOR_INIT 0

Value to initialize otNetworkDataIterator.

OT_NETWORK_DIAGNOSTIC_CHILD_TABLE_ENTRY_SIZE

 OT_NETWORK_DIAGNOSTIC_CHILD_TABLE_ENTRY_SIZE 3

Size of Network Diagnostic Child Table entry.

OT_NETWORK_DIAGNOSTIC_ITERATOR_INIT

 OT_NETWORK_DIAGNOSTIC_ITERATOR_INIT 0

Initializer for otNetworkDiagIterator.

OT_NETWORK_DIAGNOSTIC_TYPELIST_MAX_ENTRIES

 OT_NETWORK_DIAGNOSTIC_TYPELIST_MAX_ENTRIES 19

Maximum Number of Network Diagnostic TLV Types to Request or Reset.

OT_NETWORK_MAX_ROUTER_ID

 OT_NETWORK_MAX_ROUTER_ID 62

Maximum Router ID.

OT_SERVER_DATA_MAX_SIZE

 OT_SERVER_DATA_MAX_SIZE 248

Max size of Server Data in bytes. Theoretical limit, practically much lower.

OT_SERVICE_DATA_MAX_SIZE

 OT_SERVICE_DATA_MAX_SIZE 252

Max size of Service Data in bytes.

Resources

OpenThread API Reference topics originate from the source code, available on GitHub. For more information, or to contribute to our documentation, refer to Resources.