QKnxNetIpSessionResponseProxy Class

The QKnxNetIpSessionResponseProxy class provides the means to introspect session response data inside the generic QKnxNetIpFrame class and to create a KNXnet/IP session response frame from provided data. 更多...

头：	#include <QKnxNetIpSessionResponseProxy>
qmake:	QT += knx
Since:	Qt 5.12

该类在 Qt 5.12 引入。

所有成员列表，包括继承成员

公共类型

class	Builder
class	SecureBuilder

公共函数

	QKnxNetIpSessionResponseProxy (const QKnxNetIpFrame & frame )
bool	isValid () const
QKnxByteArray	messageAuthenticationCode () const
QKnxByteArray	publicKey () const
quint16	secureSessionId () const

静态公共成员

QKnxNetIpSessionResponseProxy::Builder	builder ()
QKnxNetIpSessionResponseProxy::SecureBuilder	secureBuilder ()

详细描述

This class is part of the Qt KNX module and currently available as a Technology Preview, and therefore the API and functionality provided by the class may be subject to change at any time without prior notice.

This frame will be sent by the KNXnet/IP secure server to the KNXnet/IP secure client control endpoint in response to a received secure session request frame.

注意： When using QKnxNetIpSessionResponseProxy, care must be taken to ensure that the referenced KNXnet/IP frame outlives the proxy on all code paths, lest the proxy ends up referencing deleted data.

The following code sample illustrates how to read the session response information:

auto netIpFrame = QKnxNetIpFrame::fromBytes(...);
const QKnxNetIpSessionResponseProxy proxy(netIpFrame);
if (!proxy.isValid())
    return;
auto endPoint = proxy.controlEndpoint();
auto serverPublicKey = proxy.publicKey();
auto authenticationCode = proxy.messageAuthenticationCode();

另请参阅 builder (), QKnxNetIpSessionRequestProxy ，和 Qt KNXnet/IP Connection Classes .

成员函数文档编制

QKnxNetIpSessionResponseProxy:: QKnxNetIpSessionResponseProxy (const QKnxNetIpFrame & frame )

Constructs a proxy object to read the session response information carried by the specified KNXnet/IP frame frame .

`[static]` QKnxNetIpSessionResponseProxy::Builder QKnxNetIpSessionResponseProxy:: builder ()

Returns a builder object to create a KNXnet/IP session response frame.

bool QKnxNetIpSessionResponseProxy:: isValid () const

返回 true if the frame contains initialized values and is in itself valid, otherwise returns false . A valid KNXnet/IP frame consists of at least a valid header and a size in bytes corresponding to the total size of the KNXnet/IP frame header.

注意： KNXnet/IP session response frames currently have a fixed size of 56 字节。

另请参阅 QKnxNetIpFrameHeader::totalSize ().

QKnxByteArray QKnxNetIpSessionResponseProxy:: messageAuthenticationCode () const

Returns the AES128 CCM message authentication code (MAC) from the generic KNXnet/IP session response frame with a fixed size of 16 字节。

QKnxByteArray QKnxNetIpSessionResponseProxy:: publicKey () const

Returns the public key from the generic KNXnet/IP session response frame. The public key needs to be generated using the Curve25519 algorithm and has a fixed size of 32 字节。

`[static]` QKnxNetIpSessionResponseProxy::SecureBuilder QKnxNetIpSessionResponseProxy:: secureBuilder ()