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powersync-zigbee/libnymea-zigbee/zcl/security/zigbeeclusteriaszone.h
Michael Zanetti df0b7e9c63 Rafactor handling of TSNs in ZCL to allow the application using it.
This patch separates the transactionSequenceNumber used for sending from the
one received. According to the specification, the transactionSequenceNumber is
not meant to equally increase on both ends, but instead really just be a "random"
number which allows to match a reply to a request. Syncing them on both ends
has the outcome to increase the likelyhood of collisions if a device sends
a notification at the same time we send a request and thus even may wrongly
interpret that incoming command as a reply to the request. In fact, ideally TSNs for
outgoing messages would stay away as far as possible from incoming ones.

The old code additionally had the problem that it would re-use the last received
TSN for outgoing requests, given it used a post-increment when reading
m_transactionSequenceNumber after setting it to the last received TSN.

The new code will use a single static upcounting TSN for all outgoing requests
but will still allow overriding it with a custom TSN of for some reason a certain
device requires a specific TSN (apparently those exist).
It will not do anything with incoming TSNs but forward them now to the application
layer which may decide to use it match its own transactions or to deduplicate packets.

This allows fixing the issue in nymea that remote controls sometimes produce duplicate
pressed events (seen most often with the Tradfri Symfonisk) by discarding commands that
didn't increase the TSN.
2022-01-22 13:51:21 +01:00

153 lines
5.5 KiB
C++

/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright 2013 - 2020, nymea GmbH
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#ifndef ZIGBEECLUSTERIASZONE_H
#define ZIGBEECLUSTERIASZONE_H
#include <QObject>
#include "zcl/zigbeecluster.h"
#include "zcl/zigbeeclusterreply.h"
class ZigbeeNode;
class ZigbeeNetwork;
class ZigbeeNodeEndpoint;
class ZigbeeNetworkReply;
class ZigbeeClusterIasZone : public ZigbeeCluster
{
Q_OBJECT
friend class ZigbeeNode;
friend class ZigbeeNetwork;
public:
enum Attribute {
// Zone information attribute set
AttributeZoneState = 0x0000,
AttributeZoneType = 0x0001,
AttributeZoneStatus = 0x0002,
// Zone settings attribute set
AttributeCieAddress = 0x0010,
AttributeZoneId = 0x0011,
AttributeNumberOfZoneSensitivityLevelsSupported = 0x0012,
AttributeCurrentZoneSensitivityLevel = 0x0013
};
Q_ENUM(Attribute)
enum ZoneState {
ZoneStateNotEnrolled = 0x00,
ZoneStateEnrolled = 0x01
};
Q_ENUM(ZoneState)
enum ZoneType {
ZoneTypeStandardCIE = 0x0000,
ZoneTypeMotionSensor = 0x000d,
ZoneTypeContactSwitch = 0x0015,
ZoneTypeFireSensor = 0x0028,
ZoneTypeWaterSensor = 0x002a,
ZoneTypeCarbonMonoxideSensor = 0x002b,
ZoneTypePersonalEmergencyDevice = 0x002c,
ZoneTypeVibrationMovementSensor = 0x002d,
ZoneTypeRemoteControl = 0x010f,
ZoneTypeKeyFob = 0x0115,
ZoneTypeKeypad = 0x021d,
ZoneTypeStandardWarningDevice = 0x0225,
ZoneTypeGlassBreakSensor = 0x0226,
ZoneTypeSecurityRepater = 0x0229,
ZoneTypeInvalidZone = 0xffff
};
Q_ENUM(ZoneType)
enum ZoneStatus {
ZoneStatusAlarm1 = 0x0001,
ZoneStatusAlarm2 = 0x0002,
ZoneStatusTamper = 0x0004,
ZoneStatusBattery = 0x0008,
ZoneStatusSupervisionReports = 0x0010,
ZoneStatusRestoreReports = 0x0020,
ZoneStatusTrouble = 0x0040,
ZoneStatusAcMains = 0x0080,
ZoneStatusTest = 0x0100,
ZoneStatusBatteryDefect = 0x0200
};
Q_FLAG(ZoneStatus)
Q_DECLARE_FLAGS(ZoneStatusFlags, ZoneStatus)
enum EnrollResponseCode {
EnrollResponseCodeSuccess = 0x00,
EnrollResponseCodeNotSupported = 0x01,
EnrollResponseCodeNoEnrollPermit = 0x02,
EnrollResponseCodeToManyZones = 0x03
};
Q_ENUM(EnrollResponseCode)
enum ServerCommand {
ServerCommandStatusChangedNotification = 0x00, // M
ServerCommandZoneEnrollRequest = 0x01 // M
};
Q_ENUM(ServerCommand)
enum ClientCommand {
ClientCommandEnrollResponse = 0x00, // M
ClientCommandInitNormalOperationMode = 0x01, // O
ClientCommandInitTestMode = 0x02 // O
};
Q_ENUM(ClientCommand)
explicit ZigbeeClusterIasZone(ZigbeeNetwork *network, ZigbeeNode *node, ZigbeeNodeEndpoint *endpoint, Direction direction, QObject *parent = nullptr);
ZoneState zoneState() const;
ZoneType zoneType() const;
ZoneStatusFlags zoneStatus() const;
// Request a Zone enrollment from the client (Server to client)
ZigbeeClusterReply *sendZoneEnrollRequest(ZigbeeClusterIasZone::ZoneType zoneType, quint16 manufacturerCode);
// Enroll a Zone on the server (Client to server)
ZigbeeClusterReply *sendZoneEnrollResponse(quint8 zoneId, ZigbeeClusterIasZone::EnrollResponseCode code = EnrollResponseCodeSuccess);
// Inform the client of Zone status changes (Server to client)
ZigbeeClusterReply *sendZoneStatusChangeNotification(ZoneStatus status, quint8 zoneId, quint16 delay = 0);
private:
ZoneState m_zoneState = ZoneStateNotEnrolled;
ZoneType m_zoneType = ZoneTypeInvalidZone;
ZoneStatusFlags m_zoneStatus;
void setAttribute(const ZigbeeClusterAttribute &attribute) override;
protected:
void processDataIndication(ZigbeeClusterLibrary::Frame frame) override;
signals:
void zoneStatusChanged(ZoneStatusFlags zoneStatus, quint8 extendedStatus, quint8 zoneId, quint16 delay);
void zoneEnrollRequest(ZoneType zoneType, quint16 manufacturerCode, quint8 transactionSequenceNumber);
};
#endif // ZIGBEECLUSTERIASZONE_H