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/*
* Copyright (c) 2016, The OpenThread Authors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/**
* @file
* This file includes definitions for maintaining Thread network topologies.
*/
#ifndef TOPOLOGY_HPP_
#define TOPOLOGY_HPP_
#include "openthread-core-config.h"
#include <openthread/thread_ftd.h>
#include "common/as_core_type.hpp"
#include "common/clearable.hpp"
#include "common/equatable.hpp"
#include "common/linked_list.hpp"
#include "common/locator.hpp"
#include "common/message.hpp"
#include "common/random.hpp"
#include "common/serial_number.hpp"
#include "common/timer.hpp"
#include "mac/mac_types.hpp"
#include "net/ip6.hpp"
#include "radio/radio.hpp"
#include "radio/trel_link.hpp"
#include "thread/csl_tx_scheduler.hpp"
#include "thread/indirect_sender.hpp"
#include "thread/link_metrics.hpp"
#include "thread/link_quality.hpp"
#include "thread/mle_tlvs.hpp"
#include "thread/mle_types.hpp"
#include "thread/network_data_types.hpp"
#include "thread/radio_selector.hpp"
namespace ot {
/**
* This class represents a Thread neighbor.
*
*/
class Neighbor : public InstanceLocatorInit
#if OPENTHREAD_CONFIG_MULTI_RADIO
,
public RadioSelector::NeighborInfo
#endif
#if OPENTHREAD_CONFIG_RADIO_LINK_TREL_ENABLE
,
public Trel::NeighborInfo
#endif
{
public:
/**
* Neighbor link states.
*
*/
enum State : uint8_t
{
kStateInvalid, ///< Neighbor link is invalid
kStateRestored, ///< Neighbor is restored from non-volatile memory
kStateParentRequest, ///< Received an MLE Parent Request message
kStateParentResponse, ///< Received an MLE Parent Response message
kStateChildIdRequest, ///< Received an MLE Child ID Request message
kStateLinkRequest, ///< Sent an MLE Link Request message
kStateChildUpdateRequest, ///< Sent an MLE Child Update Request message (trying to restore the child)
kStateValid, ///< Link is valid
};
/**
* This enumeration defines state filters used for finding a neighbor or iterating through the child/neighbor table.
*
* Each filter definition accepts a subset of `State` values.
*
*/
enum StateFilter : uint8_t
{
kInStateValid, ///< Accept neighbor only in `kStateValid`.
kInStateValidOrRestoring, ///< Accept neighbor with `IsStateValidOrRestoring()` being `true`.
kInStateChildIdRequest, ///< Accept neighbor only in `Child:kStateChildIdRequest`.
kInStateValidOrAttaching, ///< Accept neighbor with `IsStateValidOrAttaching()` being `true`.
kInStateInvalid, ///< Accept neighbor only in `kStateInvalid`.
kInStateAnyExceptInvalid, ///< Accept neighbor in any state except `kStateInvalid`.
kInStateAnyExceptValidOrRestoring, ///< Accept neighbor in any state except `IsStateValidOrRestoring()`.
kInStateAny, ///< Accept neighbor in any state.
};
/**
* This class represents an Address Matcher used to find a neighbor (child/router) with a given MAC address also
* matching a given state filter.
*
*/
class AddressMatcher
{
public:
/**
* This constructor initializes the `AddressMatcher` with a given MAC short address (RCOC16) and state filter.
*
* @param[in] aShortAddress A MAC short address (RLOC16).
* @param[in] aStateFilter A state filter.
*
*/
AddressMatcher(Mac::ShortAddress aShortAddress, StateFilter aStateFilter)
: AddressMatcher(aStateFilter, aShortAddress, nullptr)
{
}
/**
* This constructor initializes the `AddressMatcher` with a given MAC extended address and state filter.
*
* @param[in] aExtAddress A MAC extended address.
* @param[in] aStateFilter A state filter.
*
*/
AddressMatcher(const Mac::ExtAddress &aExtAddress, StateFilter aStateFilter)
: AddressMatcher(aStateFilter, Mac::kShortAddrInvalid, &aExtAddress)
{
}
/**
* This constructor initializes the `AddressMatcher` with a given MAC address and state filter.
*
* @param[in] aMacAddress A MAC address.
* @param[in] aStateFilter A state filter.
*
*/
AddressMatcher(const Mac::Address &aMacAddress, StateFilter aStateFilter)
: AddressMatcher(aStateFilter,
aMacAddress.IsShort() ? aMacAddress.GetShort()
: static_cast<Mac::ShortAddress>(Mac::kShortAddrInvalid),
aMacAddress.IsExtended() ? &aMacAddress.GetExtended() : nullptr)
{
}
/**
* This constructor initializes the `AddressMatcher` with a given state filter (it accepts any address).
*
* @param[in] aStateFilter A state filter.
*
*/
explicit AddressMatcher(StateFilter aStateFilter)
: AddressMatcher(aStateFilter, Mac::kShortAddrInvalid, nullptr)
{
}
/**
* This method indicates if a given neighbor matches the address and state filter of `AddressMatcher`.
*
* @param[in] aNeighbor A neighbor.
*
* @retval TRUE Neighbor @p aNeighbor matches the address and state filter.
* @retval FALSE Neighbor @p aNeighbor does not match the address or state filter.
*
*/
bool Matches(const Neighbor &aNeighbor) const;
private:
AddressMatcher(StateFilter aStateFilter, Mac::ShortAddress aShortAddress, const Mac::ExtAddress *aExtAddress)
: mStateFilter(aStateFilter)
, mShortAddress(aShortAddress)
, mExtAddress(aExtAddress)
{
}
StateFilter mStateFilter;
Mac::ShortAddress mShortAddress;
const Mac::ExtAddress *mExtAddress;
};
/**
* This type represents diagnostic information for a neighboring node.
*
*/
class Info : public otNeighborInfo, public Clearable<Info>
{
public:
/**
* This method sets the `Info` instance from a given `Neighbor`.
*
* @param[in] aNeighbor A neighbor.
*
*/
void SetFrom(const Neighbor &aNeighbor);
};
/**
* This method returns the current state.
*
* @returns The current state.
*
*/
State GetState(void) const { return static_cast<State>(mState); }
/**
* This method sets the current state.
*
* @param[in] aState The state value.
*
*/
void SetState(State aState) { mState = static_cast<uint8_t>(aState); }
/**
* This method indicates whether the neighbor is in the Invalid state.
*
* @returns TRUE if the neighbor is in the Invalid state, FALSE otherwise.
*
*/
bool IsStateInvalid(void) const { return (mState == kStateInvalid); }
/**
* This method indicates whether the neighbor is in the Child ID Request state.
*
* @returns TRUE if the neighbor is in the Child ID Request state, FALSE otherwise.
*
*/
bool IsStateChildIdRequest(void) const { return (mState == kStateChildIdRequest); }
/**
* This method indicates whether the neighbor is in the Link Request state.
*
* @returns TRUE if the neighbor is in the Link Request state, FALSE otherwise.
*
*/
bool IsStateLinkRequest(void) const { return (mState == kStateLinkRequest); }
/**
* This method indicates whether the neighbor is in the Parent Response state.
*
* @returns TRUE if the neighbor is in the Parent Response state, FALSE otherwise.
*
*/
bool IsStateParentResponse(void) const { return (mState == kStateParentResponse); }
/**
* This method indicates whether the neighbor is being restored.
*
* @returns TRUE if the neighbor is being restored, FALSE otherwise.
*
*/
bool IsStateRestoring(void) const { return (mState == kStateRestored) || (mState == kStateChildUpdateRequest); }
/**
* This method indicates whether the neighbor is in the Restored state.
*
* @returns TRUE if the neighbor is in the Restored state, FALSE otherwise.
*
*/
bool IsStateRestored(void) const { return (mState == kStateRestored); }
/**
* This method indicates whether the neighbor is valid (frame counters are synchronized).
*
* @returns TRUE if the neighbor is valid, FALSE otherwise.
*
*/
bool IsStateValid(void) const { return (mState == kStateValid); }
/**
* This method indicates whether the neighbor is in valid state or if it is being restored.
*
* When in these states messages can be sent to and/or received from the neighbor.
*
* @returns TRUE if the neighbor is in valid, restored, or being restored states, FALSE otherwise.
*
*/
bool IsStateValidOrRestoring(void) const { return (mState == kStateValid) || IsStateRestoring(); }
/**
* This method indicates if the neighbor state is valid, attaching, or restored.
*
* The states `kStateRestored`, `kStateChildIdRequest`, `kStateChildUpdateRequest`, `kStateValid`, and
* `kStateLinkRequest` are considered as valid, attaching, or restored.
*
* @returns TRUE if the neighbor state is valid, attaching, or restored, FALSE otherwise.
*
*/
bool IsStateValidOrAttaching(void) const;
/**
* This method indicates whether neighbor state matches a given state filter.
*
* @param[in] aFilter A state filter (`StateFilter` enumeration) to match against.
*
* @returns TRUE if the neighbor state matches the filter, FALSE otherwise.
*
*/
bool MatchesFilter(StateFilter aFilter) const;
/**
* This method indicates whether neighbor matches a given `AddressMatcher`.
*
* @param[in] aMatcher An `AddressMatcher` to match against.
*
* @returns TRUE if the neighbor matches the address and state filter of @p aMatcher, FALSE otherwise.
*
*/
bool Matches(const AddressMatcher &aMatcher) const { return aMatcher.Matches(*this); }
/**
* This method gets the device mode flags.
*
* @returns The device mode flags.
*
*/
Mle::DeviceMode GetDeviceMode(void) const { return Mle::DeviceMode(mMode); }
/**
* This method sets the device mode flags.
*
* @param[in] aMode The device mode flags.
*
*/
void SetDeviceMode(Mle::DeviceMode aMode) { mMode = aMode.Get(); }
/**
* This method indicates whether or not the device is rx-on-when-idle.
*
* @returns TRUE if rx-on-when-idle, FALSE otherwise.
*
*/
bool IsRxOnWhenIdle(void) const { return GetDeviceMode().IsRxOnWhenIdle(); }
/**
* This method indicates whether or not the device is a Full Thread Device.
*
* @returns TRUE if a Full Thread Device, FALSE otherwise.
*
*/
bool IsFullThreadDevice(void) const { return GetDeviceMode().IsFullThreadDevice(); }
/**
* This method gets the Network Data type (full set or stable subset) that the device requests.
*
* @returns The Network Data type.
*
*/
NetworkData::Type GetNetworkDataType(void) const { return GetDeviceMode().GetNetworkDataType(); }
/**
* This method sets all bytes of the Extended Address to zero.
*
*/
void ClearExtAddress(void) { memset(&mMacAddr, 0, sizeof(mMacAddr)); }
/**
* This method returns the Extended Address.
*
* @returns A reference to the Extended Address.
*
*/
const Mac::ExtAddress &GetExtAddress(void) const { return mMacAddr; }
/**
* This method sets the Extended Address.
*
* @param[in] aAddress The Extended Address value to set.
*
*/
void SetExtAddress(const Mac::ExtAddress &aAddress) { mMacAddr = aAddress; }
/**
* This method gets the key sequence value.
*
* @returns The key sequence value.
*
*/
uint32_t GetKeySequence(void) const { return mKeySequence; }
/**
* This method sets the key sequence value.
*
* @param[in] aKeySequence The key sequence value.
*
*/
void SetKeySequence(uint32_t aKeySequence) { mKeySequence = aKeySequence; }
/**
* This method returns the last heard time.
*
* @returns The last heard time.
*
*/
TimeMilli GetLastHeard(void) const { return mLastHeard; }
/**
* This method sets the last heard time.
*
* @param[in] aLastHeard The last heard time.
*
*/
void SetLastHeard(TimeMilli aLastHeard) { mLastHeard = aLastHeard; }
/**
* This method gets the link frame counters.
*
* @returns A reference to `Mac::LinkFrameCounters` containing link frame counter for all supported radio links.
*
*/
Mac::LinkFrameCounters &GetLinkFrameCounters(void) { return mValidPending.mValid.mLinkFrameCounters; }
/**
* This method gets the link frame counters.
*
* @returns A reference to `Mac::LinkFrameCounters` containing link frame counter for all supported radio links.
*
*/
const Mac::LinkFrameCounters &GetLinkFrameCounters(void) const { return mValidPending.mValid.mLinkFrameCounters; }
#if OPENTHREAD_CONFIG_THREAD_VERSION >= OT_THREAD_VERSION_1_2
/**
* This method gets the link ACK frame counter value.
*
* @returns The link ACK frame counter value.
*
*/
uint32_t GetLinkAckFrameCounter(void) const { return mValidPending.mValid.mLinkAckFrameCounter; }
#endif
/**
* This method sets the link ACK frame counter value.
*
* @param[in] aAckFrameCounter The link ACK frame counter value.
*
*/
void SetLinkAckFrameCounter(uint32_t aAckFrameCounter)
{
#if OPENTHREAD_CONFIG_THREAD_VERSION >= OT_THREAD_VERSION_1_2
mValidPending.mValid.mLinkAckFrameCounter = aAckFrameCounter;
#else
OT_UNUSED_VARIABLE(aAckFrameCounter);
#endif
}
/**
* This method gets the MLE frame counter value.
*
* @returns The MLE frame counter value.
*
*/
uint32_t GetMleFrameCounter(void) const { return mValidPending.mValid.mMleFrameCounter; }
/**
* This method sets the MLE frame counter value.
*
* @param[in] aFrameCounter The MLE frame counter value.
*
*/
void SetMleFrameCounter(uint32_t aFrameCounter) { mValidPending.mValid.mMleFrameCounter = aFrameCounter; }
/**
* This method gets the RLOC16 value.
*
* @returns The RLOC16 value.
*
*/
uint16_t GetRloc16(void) const { return mRloc16; }
/**
* This method gets the Router ID value.
*
* @returns The Router ID value.
*
*/
uint8_t GetRouterId(void) const { return mRloc16 >> Mle::kRouterIdOffset; }
/**
* This method sets the RLOC16 value.
*
* @param[in] aRloc16 The RLOC16 value.
*
*/
void SetRloc16(uint16_t aRloc16) { mRloc16 = aRloc16; }
#if OPENTHREAD_CONFIG_MULTI_RADIO
/**
* This method clears the last received fragment tag.
*
* The last received fragment tag is used for detect duplicate frames (received over different radios) when
* multi-radio feature is enabled.
*
*/
void ClearLastRxFragmentTag(void) { mLastRxFragmentTag = 0; }
/**
* This method gets the last received fragment tag.
*
* This method MUST be used only when the tag is set (and not cleared). Otherwise its behavior is undefined.
*
* @returns The last received fragment tag.
*
*/
uint16_t GetLastRxFragmentTag(void) const { return mLastRxFragmentTag; }
/**
* This method set the last received fragment tag.
*
* @param[in] aTag The new tag value.
*
*/
void SetLastRxFragmentTag(uint16_t aTag);
/**
* This method indicates whether or not the last received fragment tag is set and valid (i.e., not yet timed out).
*
* @returns TRUE if the last received fragment tag is set and valid, FALSE otherwise.
*
*/
bool IsLastRxFragmentTagSet(void) const;
/**
* This method indicates whether the last received fragment tag is strictly after a given tag value.
*
* This method MUST be used only when the tag is set (and not cleared). Otherwise its behavior is undefined.
*
* The tag value compassion follows the Serial Number Arithmetic logic from RFC-1982. It is semantically equivalent
* to `LastRxFragementTag > aTag`.
*
* @param[in] aTag A tag value to compare against.
*
* @returns TRUE if the current last rx fragment tag is strictly after @p aTag, FALSE if they are equal or it is
* before @p aTag.
*
*/
bool IsLastRxFragmentTagAfter(uint16_t aTag) const { return SerialNumber::IsGreater(mLastRxFragmentTag, aTag); }
#endif // OPENTHREAD_CONFIG_MULTI_RADIO
/**
* This method indicates whether or not it is a valid Thread 1.1 neighbor.
*
* @returns TRUE if it is a valid Thread 1.1 neighbor, FALSE otherwise.
*
*/
bool IsThreadVersion1p1(void) const { return mState != kStateInvalid && mVersion == OT_THREAD_VERSION_1_1; }
/**
* This method indicates whether or not it is a valid Thread 1.2 neighbor.
*
* @returns TRUE if it is a valid Thread 1.2 neighbor, FALSE otherwise.
*
*/
bool IsThreadVersion1p2(void) const { return mState != kStateInvalid && mVersion == OT_THREAD_VERSION_1_2; }
/**
* This method indicates whether Thread version supports CSL.
*
* @returns TRUE if CSL is supported, FALSE otherwise.
*
*/
bool IsThreadVersionCslCapable(void) const { return IsThreadVersion1p2() && !IsRxOnWhenIdle(); }
/**
* This method indicates whether Enhanced Keep-Alive is supported or not.
*
* @returns TRUE if Enhanced Keep-Alive is supported, FALSE otherwise.
*
*/
bool IsEnhancedKeepAliveSupported(void) const
{
return mState != kStateInvalid && mVersion >= OT_THREAD_VERSION_1_2;
}
/**
* This method gets the device MLE version.
*
*/
uint8_t GetVersion(void) const { return mVersion; }
/**
* This method sets the device MLE version.
*
* @param[in] aVersion The device MLE version.
*
*/
void SetVersion(uint8_t aVersion) { mVersion = aVersion; }
/**
* This method gets the number of consecutive link failures.
*
* @returns The number of consecutive link failures.
*
*/
uint8_t GetLinkFailures(void) const { return mLinkFailures; }
/**
* This method increments the number of consecutive link failures.
*
*/
void IncrementLinkFailures(void) { mLinkFailures++; }
/**
* This method resets the number of consecutive link failures to zero.
*
*/
void ResetLinkFailures(void) { mLinkFailures = 0; }
/**
* This method returns the LinkQualityInfo object.
*
* @returns The LinkQualityInfo object.
*
*/
LinkQualityInfo &GetLinkInfo(void) { return mLinkInfo; }
/**
* This method returns the LinkQualityInfo object.
*
* @returns The LinkQualityInfo object.
*
*/
const LinkQualityInfo &GetLinkInfo(void) const { return mLinkInfo; }
/**
* This method generates a new challenge value for MLE Link Request/Response exchanges.
*
*/
void GenerateChallenge(void);
/**
* This method returns the current challenge value for MLE Link Request/Response exchanges.
*
* @returns The current challenge value.
*
*/
const uint8_t *GetChallenge(void) const { return mValidPending.mPending.mChallenge; }
/**
* This method returns the size (bytes) of the challenge value for MLE Link Request/Response exchanges.
*
* @returns The size (bytes) of the challenge value for MLE Link Request/Response exchanges.
*
*/
uint8_t GetChallengeSize(void) const { return sizeof(mValidPending.mPending.mChallenge); }
#if OPENTHREAD_CONFIG_TIME_SYNC_ENABLE
/**
* This method indicates whether or not time sync feature is enabled.
*
* @returns TRUE if time sync feature is enabled, FALSE otherwise.
*
*/
bool IsTimeSyncEnabled(void) const { return mTimeSyncEnabled; }
/**
* This method sets whether or not time sync feature is enabled.
*
* @param[in] aEnable TRUE if time sync feature is enabled, FALSE otherwise.
*
*/
void SetTimeSyncEnabled(bool aEnabled) { mTimeSyncEnabled = aEnabled; }
#endif
#if OPENTHREAD_CONFIG_MLE_LINK_METRICS_INITIATOR_ENABLE || OPENTHREAD_CONFIG_MLE_LINK_METRICS_SUBJECT_ENABLE
/**
* This method aggregates the Link Metrics data into all the series that is running for this neighbor.
*
* If a series wants to account frames of @p aFrameType, it would add count by 1 and aggregate @p aLqi and
* @p aRss into its averagers.
*
* @param[in] aSeriesId Series ID for Link Probe. Should be `0` if this method is not called by Link Probe.
* @param[in] aFrameType Type of the frame that carries Link Metrics data.
* @param[in] aLqi The LQI value.
* @param[in] aRss The Rss value.
*
*/
void AggregateLinkMetrics(uint8_t aSeriesId, uint8_t aFrameType, uint8_t aLqi, int8_t aRss);
/**
* This method adds a new LinkMetrics::SeriesInfo to the neighbor's list.
*
* @param[in] aSeriesInfo A reference to the new SeriesInfo.
*
*/
void AddForwardTrackingSeriesInfo(LinkMetrics::SeriesInfo &aSeriesInfo);
/**
* This method finds a specific LinkMetrics::SeriesInfo by Series ID.
*
* @param[in] aSeriesId A reference to the Series ID.
*
* @returns The pointer to the LinkMetrics::SeriesInfo. `nullptr` if not found.
*
*/
LinkMetrics::SeriesInfo *GetForwardTrackingSeriesInfo(const uint8_t &aSeriesId);
/**
* This method removes a specific LinkMetrics::SeriesInfo by Series ID.
*
* @param[in] aSeriesId A reference to the Series ID to remove.
*
* @returns The pointer to the LinkMetrics::SeriesInfo. `nullptr` if not found.
*
*/
LinkMetrics::SeriesInfo *RemoveForwardTrackingSeriesInfo(const uint8_t &aSeriesId);
/**
* This method removes all the Series and return the data structures to the Pool.
*
*/
void RemoveAllForwardTrackingSeriesInfo(void);
/**
* This method gets the Enh-ACK Probing metrics (this `Neighbor` object is the Probing Subject).
*
* @returns Enh-ACK Probing metrics configured.
*
*/
const LinkMetrics::Metrics &GetEnhAckProbingMetrics(void) const { return mEnhAckProbingMetrics; }
/**
* This method sets the Enh-ACK Probing metrics (this `Neighbor` object is the Probing Subject).
*
* @param[in] aEnhAckProbingMetrics The metrics value to set.
*
*/
void SetEnhAckProbingMetrics(const LinkMetrics::Metrics &aEnhAckProbingMetrics)
{
mEnhAckProbingMetrics = aEnhAckProbingMetrics;
}
/**
* This method indicates if Enh-ACK Probing is configured and active for this `Neighbor` object.
*
* @retval TRUE Enh-ACK Probing is configured and active for this `Neighbor`.
* @retval FALSE Otherwise.
*
*/
bool IsEnhAckProbingActive(void) const
{
return (mEnhAckProbingMetrics.mLqi != 0) || (mEnhAckProbingMetrics.mLinkMargin != 0) ||
(mEnhAckProbingMetrics.mRssi != 0);
}
#endif // OPENTHREAD_CONFIG_MLE_LINK_METRICS_INITIATOR_ENABLE || OPENTHREAD_CONFIG_MLE_LINK_METRICS_SUBJECT_ENABLE
/**
* This method converts a given `State` to a human-readable string.
*
* @param[in] aState A neighbor state.
*
* @returns A string representation of given state.
*
*/
static const char *StateToString(State aState);
protected:
/**
* This method initializes the `Neighbor` object.
*
* @param[in] aInstance A reference to OpenThread instance.
*
*/
void Init(Instance &aInstance);
private:
enum : uint32_t
{
kLastRxFragmentTagTimeout = OPENTHREAD_CONFIG_MULTI_RADIO_FRAG_TAG_TIMEOUT, ///< Frag tag timeout in msec.
};
Mac::ExtAddress mMacAddr; ///< The IEEE 802.15.4 Extended Address
TimeMilli mLastHeard; ///< Time when last heard.
union
{
struct
{
Mac::LinkFrameCounters mLinkFrameCounters; ///< The Link Frame Counters
uint32_t mMleFrameCounter; ///< The MLE Frame Counter
#if OPENTHREAD_CONFIG_THREAD_VERSION >= OT_THREAD_VERSION_1_2
uint32_t mLinkAckFrameCounter; ///< The Link Ack Frame Counter
#endif
} mValid;
struct
{
uint8_t mChallenge[Mle::kMaxChallengeSize]; ///< The challenge value
} mPending;
} mValidPending;
#if OPENTHREAD_CONFIG_MULTI_RADIO
uint16_t mLastRxFragmentTag; ///< Last received fragment tag
TimeMilli mLastRxFragmentTagTime; ///< The time last fragment tag was received and set.
#endif
uint32_t mKeySequence; ///< Current key sequence
uint16_t mRloc16; ///< The RLOC16
uint8_t mState : 4; ///< The link state
uint8_t mMode : 4; ///< The MLE device mode
#if OPENTHREAD_CONFIG_TIME_SYNC_ENABLE
uint8_t mLinkFailures : 7; ///< Consecutive link failure count
bool mTimeSyncEnabled : 1; ///< Indicates whether or not time sync feature is enabled.
#else
uint8_t mLinkFailures; ///< Consecutive link failure count
#endif
uint8_t mVersion; ///< The MLE version
LinkQualityInfo mLinkInfo; ///< Link quality info (contains average RSS, link margin and link quality)
#if OPENTHREAD_CONFIG_MLE_LINK_METRICS_INITIATOR_ENABLE || OPENTHREAD_CONFIG_MLE_LINK_METRICS_SUBJECT_ENABLE
// A list of Link Metrics Forward Tracking Series that is being
// tracked for this neighbor. Note that this device is the
// Subject and this neighbor is the Initiator.
LinkedList<LinkMetrics::SeriesInfo> mLinkMetricsSeriesInfoList;
// Metrics configured for Enh-ACK Based Probing at the Probing
// Subject (this neighbor). Note that this device is the Initiator
// and this neighbor is the Subject.
LinkMetrics::Metrics mEnhAckProbingMetrics;
#endif
};
#if OPENTHREAD_FTD
/**
* This class represents a Thread Child.
*
*/
class Child : public Neighbor,
public IndirectSender::ChildInfo,
public DataPollHandler::ChildInfo
#if OPENTHREAD_CONFIG_MAC_CSL_TRANSMITTER_ENABLE
,
public CslTxScheduler::ChildInfo
#endif
{
class AddressIteratorBuilder;
public:
static constexpr uint8_t kMaxRequestTlvs = 5;
/**
* This class represents diagnostic information for a Thread Child.
*
*/
class Info : public otChildInfo, public Clearable<Info>
{
public:
/**
* This method sets the `Info` instance from a given `Child`.
*
* @param[in] aChild A neighbor.
*
*/
void SetFrom(const Child &aChild);
};
/**
* This class defines an iterator used to go through IPv6 address entries of a child.
*
*/
class AddressIterator : public Unequatable<AddressIterator>
{
friend class AddressIteratorBuilder;
public:
/**
* This type represents an index indicating the current IPv6 address entry to which the iterator is pointing.
*
*/
typedef otChildIp6AddressIterator Index;
/**
* This constructor initializes the iterator associated with a given `Child` starting from beginning of the
* IPv6 address list.
*
* @param[in] aChild A reference to a child entry.
* @param[in] aFilter An IPv6 address type filter restricting iterator to certain type of addresses.
*
*/
explicit AddressIterator(const Child &aChild, Ip6::Address::TypeFilter aFilter = Ip6::Address::kTypeAny)
: AddressIterator(aChild, 0, aFilter)
{
}
/**
* This constructor initializes the iterator associated with a given `Child` starting from a given index
*
* @param[in] aChild A reference to the child entry.
* @param[in] aIndex An index (`Index`) with which to initialize the iterator.
* @param[in] aFilter An IPv6 address type filter restricting iterator to certain type of addresses.
*
*/
AddressIterator(const Child &aChild, Index aIndex, Ip6::Address::TypeFilter aFilter = Ip6::Address::kTypeAny)
: mChild(aChild)
, mFilter(aFilter)
, mIndex(aIndex)
{
Update();
}
/**
* This method converts the iterator into an index.
*
* @returns An index corresponding to the iterator.
*
*/
Index GetAsIndex(void) const { return mIndex; }
/**
* This method gets the iterator's associated `Child` entry.
*
* @returns The associated child entry.
*
*/
const Child &GetChild(void) const { return mChild; }
/**
* This method gets the current `Child` IPv6 Address to which the iterator is pointing.
*
* @returns A pointer to the associated IPv6 Address, or `nullptr` if iterator is done.
*
*/
const Ip6::Address *GetAddress(void) const;
/**
* This method indicates whether the iterator has reached end of the list.
*
* @retval TRUE There are no more entries in the list (reached end of the list).
* @retval FALSE The current entry is valid.
*
*/
bool IsDone(void) const { return (mIndex >= kMaxIndex); }
/**
* This method overloads `++` operator (pre-increment) to advance the iterator.
*
* The iterator is moved to point to the next `Address` entry. If there are no more `Ip6::Address` entries
* `IsDone()` returns `true`.
*
*/
void operator++(void) { mIndex++, Update(); }
/**
* This method overloads `++` operator (post-increment) to advance the iterator.
*
* The iterator is moved to point to the next `Address` entry. If there are no more `Ip6::Address` entries
* `IsDone()` returns `true`.
*
*/
void operator++(int) { mIndex++, Update(); }
/**
* This method overloads the `*` dereference operator and gets a reference to `Ip6::Address` to which the
* iterator is currently pointing.
*
* This method MUST be used when the iterator is not done (i.e., `IsDone()` returns `false`).
*
* @returns A reference to the `Ip6::Address` entry currently pointed by the iterator.
*
*/
const Ip6::Address &operator*(void)const { return *GetAddress(); }
/**
* This method overloads operator `==` to evaluate whether or not two `Iterator` instances are equal.
*
* This method MUST be used when the two iterators are associated with the same `Child` entry.
*
* @param[in] aOther The other `Iterator` to compare with.
*
* @retval TRUE If the two `Iterator` objects are equal.
* @retval FALSE If the two `Iterator` objects are not equal.
*
*/
bool operator==(const AddressIterator &aOther) const { return (mIndex == aOther.mIndex); }
private:
enum IteratorType : uint8_t
{
kEndIterator,
};
static constexpr uint16_t kMaxIndex = OPENTHREAD_CONFIG_MLE_IP_ADDRS_PER_CHILD;
AddressIterator(const Child &aChild, IteratorType)
: mChild(aChild)
, mIndex(kMaxIndex)
{
}
void Update(void);
const Child & mChild;
Ip6::Address::TypeFilter mFilter;
Index mIndex;
Ip6::Address mMeshLocalAddress;
};
/**
* This method initializes the `Child` object.
*
* @param[in] aInstance A reference to OpenThread instance.
*
*/
void Init(Instance &aInstance) { Neighbor::Init(aInstance); }
/**
* This method clears the child entry.
*
*/
void Clear(void);
/**
* This method clears the IPv6 address list for the child.
*
*/
void ClearIp6Addresses(void);
/**
* This method sets the device mode flags.
*
* @param[in] aMode The device mode flags.
*
*/
void SetDeviceMode(Mle::DeviceMode aMode);
/**
* This method gets the mesh-local IPv6 address.
*
* @param[out] aAddress A reference to an IPv6 address to provide address (if any).
*
* @retval kErrorNone Successfully found the mesh-local address and updated @p aAddress.
* @retval kErrorNotFound No mesh-local IPv6 address in the IPv6 address list.
*
*/
Error GetMeshLocalIp6Address(Ip6::Address &aAddress) const;
/**
* This method returns the Mesh Local Interface Identifier.
*
* @returns The Mesh Local Interface Identifier.
*
*/
const Ip6::InterfaceIdentifier &GetMeshLocalIid(void) const { return mMeshLocalIid; }
/**
* This method enables range-based `for` loop iteration over all (or a subset of) IPv6 addresses.
*
* This method should be used as follows: to iterate over all addresses
*
* for (const Ip6::Address &address : child.IterateIp6Addresses()) { ... }
*
* or to iterate over a subset of IPv6 addresses determined by a given address type filter
*
* for (const Ip6::Address &address : child.IterateIp6Addresses(Ip6::Address::kTypeMulticast)) { ... }
*
* @param[in] aFilter An IPv6 address type filter restricting iteration to certain type of addresses (default is
* to accept any address type).
*
* @returns An IteratorBuilder instance.
*
*/
AddressIteratorBuilder IterateIp6Addresses(Ip6::Address::TypeFilter aFilter = Ip6::Address::kTypeAny) const
{
return AddressIteratorBuilder(*this, aFilter);
}
/**
* This method adds an IPv6 address to the list.
*
* @param[in] aAddress A reference to IPv6 address to be added.
*
* @retval kErrorNone Successfully added the new address.
* @retval kErrorAlready Address is already in the list.
* @retval kErrorNoBufs Already at maximum number of addresses. No entry available to add the new address.
* @retval kErrorInvalidArgs Address is invalid (it is the Unspecified Address).
*
*/
Error AddIp6Address(const Ip6::Address &aAddress);
/**
* This method removes an IPv6 address from the list.
*
* @param[in] aAddress A reference to IPv6 address to be removed.
*
* @retval kErrorNone Successfully removed the address.
* @retval kErrorNotFound Address was not found in the list.
* @retval kErrorInvalidArgs Address is invalid (it is the Unspecified Address).
*
*/
Error RemoveIp6Address(const Ip6::Address &aAddress);
/**
* This method indicates whether an IPv6 address is in the list of IPv6 addresses of the child.
*
* @param[in] aAddress A reference to IPv6 address.
*
* @retval TRUE The address exists on the list.
* @retval FALSE Address was not found in the list.
*
*/
bool HasIp6Address(const Ip6::Address &aAddress) const;
#if OPENTHREAD_FTD && OPENTHREAD_CONFIG_TMF_PROXY_DUA_ENABLE
/**
* This method retrieves the Domain Unicast Address registered by the child.
*
* @returns A pointer to Domain Unicast Address registered by the child if there is.
*
*/
const Ip6::Address *GetDomainUnicastAddress(void) const;
#endif
/**
* This method gets the child timeout.
*
* @returns The child timeout.
*
*/
uint32_t GetTimeout(void) const { return mTimeout; }
/**
* This method sets the child timeout.
*
* @param[in] aTimeout The child timeout.
*
*/
void SetTimeout(uint32_t aTimeout) { mTimeout = aTimeout; }
/**
* This method gets the network data version.
*
* @returns The network data version.
*
*/
uint8_t GetNetworkDataVersion(void) const { return mNetworkDataVersion; }
/**
* This method sets the network data version.
*
* @param[in] aVersion The network data version.
*
*/
void SetNetworkDataVersion(uint8_t aVersion) { mNetworkDataVersion = aVersion; }
/**
* This method generates a new challenge value to use during a child attach.
*
*/
void GenerateChallenge(void);
/**
* This method gets the current challenge value used during attach.
*
* @returns The current challenge value.
*
*/
const uint8_t *GetChallenge(void) const { return mAttachChallenge; }
/**
* This method gets the challenge size (bytes) used during attach.
*
* @returns The challenge size (bytes).
*
*/
uint8_t GetChallengeSize(void) const { return sizeof(mAttachChallenge); }
/**
* This method clears the requested TLV list.
*
*/
void ClearRequestTlvs(void) { memset(mRequestTlvs, Mle::Tlv::kInvalid, sizeof(mRequestTlvs)); }
/**
* This method returns the requested TLV at index @p aIndex.
*
* @param[in] aIndex The index into the requested TLV list.
*
* @returns The requested TLV at index @p aIndex.
*
*/
uint8_t GetRequestTlv(uint8_t aIndex) const { return mRequestTlvs[aIndex]; }
/**
* This method sets the requested TLV at index @p aIndex.
*
* @param[in] aIndex The index into the requested TLV list.
* @param[in] aType The TLV type.
*
*/
void SetRequestTlv(uint8_t aIndex, uint8_t aType) { mRequestTlvs[aIndex] = aType; }
#if OPENTHREAD_CONFIG_CHILD_SUPERVISION_ENABLE
/**
* This method increments the number of seconds since last supervision of the child.
*
*/
void IncrementSecondsSinceLastSupervision(void) { mSecondsSinceSupervision++; }
/**
* This method returns the number of seconds since last supervision of the child (last message to the child)
*
* @returns Number of seconds since last supervision of the child.
*
*/
uint16_t GetSecondsSinceLastSupervision(void) const { return mSecondsSinceSupervision; }
/**
* This method resets the number of seconds since last supervision of the child to zero.
*
*/
void ResetSecondsSinceLastSupervision(void) { mSecondsSinceSupervision = 0; }
#endif // #if OPENTHREAD_CONFIG_CHILD_SUPERVISION_ENABLE
#if OPENTHREAD_FTD && OPENTHREAD_CONFIG_TMF_PROXY_MLR_ENABLE
/**
* This method returns MLR state of an IPv6 multicast address.
*
* @note The @p aAdddress reference MUST be from `IterateIp6Addresses()` or `AddressIterator`.
*
* @param[in] aAddress The IPv6 multicast address.
*
* @returns MLR state of the IPv6 multicast address.
*
*/
MlrState GetAddressMlrState(const Ip6::Address &aAddress) const;
/**
* This method sets MLR state of an IPv6 multicast address.
*
* @note The @p aAdddress reference MUST be from `IterateIp6Addresses()` or `AddressIterator`.
*
* @param[in] aAddress The IPv6 multicast address.
* @param[in] aState The target MLR state.
*
*/
void SetAddressMlrState(const Ip6::Address &aAddress, MlrState aState);
/**
* This method returns if the Child has IPv6 address @p aAddress of MLR state `kMlrStateRegistered`.
*
* @param[in] aAddress The IPv6 address.
*
* @retval true If the Child has IPv6 address @p aAddress of MLR state `kMlrStateRegistered`.
* @retval false If the Child does not have IPv6 address @p aAddress of MLR state `kMlrStateRegistered`.
*
*/
bool HasMlrRegisteredAddress(const Ip6::Address &aAddress) const;
/**
* This method returns if the Child has any IPv6 address of MLR state `kMlrStateRegistered`.
*
* @retval true If the Child has any IPv6 address of MLR state `kMlrStateRegistered`.
* @retval false If the Child does not have any IPv6 address of MLR state `kMlrStateRegistered`.
*
*/
bool HasAnyMlrRegisteredAddress(void) const { return mMlrRegisteredMask.HasAny(); }
/**
* This method returns if the Child has any IPv6 address of MLR state `kMlrStateToRegister`.
*
* @retval true If the Child has any IPv6 address of MLR state `kMlrStateToRegister`.
* @retval false If the Child does not have any IPv6 address of MLR state `kMlrStateToRegister`.
*
*/
bool HasAnyMlrToRegisterAddress(void) const { return mMlrToRegisterMask.HasAny(); }
#endif // OPENTHREAD_FTD && OPENTHREAD_CONFIG_TMF_PROXY_MLR_ENABLE
private:
#if OPENTHREAD_CONFIG_MLE_IP_ADDRS_PER_CHILD < 2
#error OPENTHREAD_CONFIG_MLE_IP_ADDRS_PER_CHILD should be at least set to 2.
#endif
static constexpr uint16_t kNumIp6Addresses = OPENTHREAD_CONFIG_MLE_IP_ADDRS_PER_CHILD - 1;
typedef BitVector<kNumIp6Addresses> ChildIp6AddressMask;
class AddressIteratorBuilder
{
public:
AddressIteratorBuilder(const Child &aChild, Ip6::Address::TypeFilter aFilter)
: mChild(aChild)
, mFilter(aFilter)
{
}
AddressIterator begin(void) { return AddressIterator(mChild, mFilter); }
AddressIterator end(void) { return AddressIterator(mChild, AddressIterator::kEndIterator); }
private:
const Child & mChild;
Ip6::Address::TypeFilter mFilter;
};
Ip6::InterfaceIdentifier mMeshLocalIid; ///< IPv6 address IID for mesh-local address
Ip6::Address mIp6Address[kNumIp6Addresses]; ///< Registered IPv6 addresses
uint32_t mTimeout; ///< Child timeout
#if OPENTHREAD_FTD && OPENTHREAD_CONFIG_TMF_PROXY_MLR_ENABLE
ChildIp6AddressMask mMlrToRegisterMask;
ChildIp6AddressMask mMlrRegisteredMask;
#endif
uint8_t mNetworkDataVersion; ///< Current Network Data version
union
{
uint8_t mRequestTlvs[kMaxRequestTlvs]; ///< Requested MLE TLVs
uint8_t mAttachChallenge[Mle::kMaxChallengeSize]; ///< The challenge value
};
#if OPENTHREAD_CONFIG_CHILD_SUPERVISION_ENABLE
uint16_t mSecondsSinceSupervision; ///< Number of seconds since last supervision of the child.
#endif
static_assert(OPENTHREAD_CONFIG_NUM_MESSAGE_BUFFERS < 8192, "mQueuedMessageCount cannot fit max required!");
};
#endif // OPENTHREAD_FTD
/**
* This class represents a Thread Router
*
*/
class Router : public Neighbor
{
public:
/**
* This class represents diagnostic information for a Thread Router.
*
*/
class Info : public otRouterInfo, public Clearable<Info>
{
public:
/**
* This method sets the `Info` instance from a given `Router`.
*
* @param[in] aRouter A router.
*
*/
void SetFrom(const Router &aRouter);
};
/**
* This method initializes the `Router` object.
*
* @param[in] aInstance A reference to OpenThread instance.
*
*/
void Init(Instance &aInstance)
{
Neighbor::Init(aInstance);
#if OPENTHREAD_CONFIG_MAC_CSL_RECEIVER_ENABLE
SetCslClockAccuracy(kCslWorstCrystalPpm);
SetCslClockUncertainty(kCslWorstUncertainty);
#endif
}
/**
* This method clears the router entry.
*
*/
void Clear(void);
/**
* This method gets the router ID of the next hop to this router.
*
* @returns The router ID of the next hop to this router.
*
*/
uint8_t GetNextHop(void) const { return mNextHop; }
/**
* This method sets the router ID of the next hop to this router.
*
* @param[in] aRouterId The router ID of the next hop to this router.
*
*/
void SetNextHop(uint8_t aRouterId) { mNextHop = aRouterId; }
/**
* This method gets the link quality out value for this router.
*
* @returns The link quality out value for this router.
*
*/
LinkQuality GetLinkQualityOut(void) const { return static_cast<LinkQuality>(mLinkQualityOut); }
/**
* This method sets the link quality out value for this router.
*
* @param[in] aLinkQuality The link quality out value for this router.
*
*/
void SetLinkQualityOut(LinkQuality aLinkQuality) { mLinkQualityOut = aLinkQuality; }
/**
* This method get the route cost to this router.
*
* @returns The route cost to this router.
*
*/
uint8_t GetCost(void) const { return mCost; }
/**
* This method sets the router cost to this router.
*
* @param[in] aCost The router cost to this router.
*
*/
void SetCost(uint8_t aCost) { mCost = aCost; }
#if OPENTHREAD_CONFIG_MAC_CSL_RECEIVER_ENABLE
/**
* This method get the CSL clock accuracy of this router.
*
* @returns The CSL clock accuracy of this router.
*
*/
uint8_t GetCslClockAccuracy(void) const { return mCslClockAccuracy; }
/**
* This method sets the CSL clock accuracy of this router.
*
* @param[in] aCslClockAccuracy The CSL clock accuracy of this router.
*
*/
void SetCslClockAccuracy(uint8_t aCslClockAccuracy) { mCslClockAccuracy = aCslClockAccuracy; }
/**
* This method get the CSL clock uncertainty of this router.
*
* @returns The CSL clock uncertainty of this router.
*
*/
uint8_t GetCslClockUncertainty(void) const { return mCslClockUncertainty; }
/**
* This method sets the CSL clock uncertainty of this router.
*
* @param[in] aCslClockUncertainty The CSL clock uncertainty of this router.
*
*/
void SetCslClockUncertainty(uint8_t aCslClockUncertainty) { mCslClockUncertainty = aCslClockUncertainty; }
#endif
private:
uint8_t mNextHop; ///< The next hop towards this router
uint8_t mLinkQualityOut : 2; ///< The link quality out for this router
#if OPENTHREAD_CONFIG_MLE_LONG_ROUTES_ENABLE
uint8_t mCost; ///< The cost to this router via neighbor router
#else
uint8_t mCost : 4; ///< The cost to this router via neighbor router
#endif
#if OPENTHREAD_CONFIG_MAC_CSL_RECEIVER_ENABLE
uint8_t mCslClockAccuracy; ///< Crystal accuracy, in units of ± ppm.
uint8_t mCslClockUncertainty; ///< Scheduling uncertainty, in units of 10 us.
#endif
};
DefineCoreType(otNeighborInfo, Neighbor::Info);
#if OPENTHREAD_FTD
DefineCoreType(otChildInfo, Child::Info);
#endif
DefineCoreType(otRouterInfo, Router::Info);
} // namespace ot
#endif // TOPOLOGY_HPP_