QTlsBackend is a factory class, providing implementations for the QSsl classes. More...

#include <qtlsbackend_p.h>

Inheritance diagram for QTlsBackend:

Collaboration diagram for QTlsBackend:

Public Member Functions
	QTlsBackend ()

	~QTlsBackend () override

virtual bool	isValid () const

virtual long	tlsLibraryVersionNumber () const

virtual QString	tlsLibraryVersionString () const

virtual long	tlsLibraryBuildVersionNumber () const

virtual QString	tlsLibraryBuildVersionString () const

virtual void	ensureInitialized () const

virtual QString	backendName () const =0

virtual QList< QSsl::SslProtocol >	supportedProtocols () const =0

virtual QList< QSsl::SupportedFeature >	supportedFeatures () const =0

virtual QList< QSsl::ImplementedClass >	implementedClasses () const =0

virtual QTlsPrivate::TlsKey *	createKey () const

virtual QTlsPrivate::X509Certificate *	createCertificate () const

virtual QList< QSslCertificate >	systemCaCertificates () const

virtual QTlsPrivate::TlsCryptograph *	createTlsCryptograph () const

virtual QTlsPrivate::DtlsCryptograph *	createDtlsCryptograph (class QDtls *qObject, int mode) const

virtual QTlsPrivate::DtlsCookieVerifier *	createDtlsCookieVerifier () const

virtual QTlsPrivate::X509ChainVerifyPtr	X509Verifier () const

virtual QTlsPrivate::X509PemReaderPtr	X509PemReader () const

virtual QTlsPrivate::X509DerReaderPtr	X509DerReader () const

virtual QTlsPrivate::X509Pkcs12ReaderPtr	X509Pkcs12Reader () const

virtual QList< int >	ellipticCurvesIds () const

virtual int	curveIdFromShortName (const QString &name) const

virtual int	curveIdFromLongName (const QString &name) const

virtual QString	shortNameForId (int cid) const

virtual QString	longNameForId (int cid) const

virtual bool	isTlsNamedCurve (int cid) const

virtual int	dhParametersFromDer (const QByteArray &derData, QByteArray *data) const

virtual int	dhParametersFromPem (const QByteArray &pemData, QByteArray *data) const

Public Member Functions inherited from QObject
Q_INVOKABLE	QObject (QObject *parent=nullptr)
	Constructs an object with parent object parent.

virtual	~QObject ()
	Destroys the object, deleting all its child objects.

virtual bool	event (QEvent *event)
	This virtual function receives events to an object and should return true if the event e was recognized and processed.

virtual bool	eventFilter (QObject watched, QEvent event)
	Filters events if this object has been installed as an event filter for the watched object.

QString	objectName () const

Q_WEAK_OVERLOAD void	setObjectName (const QString &name)
	Sets the object's name to name.

void	setObjectName (QAnyStringView name)
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

QBindable< QString >	bindableObjectName ()

bool	isWidgetType () const
	Returns `true` if the object is a widget; otherwise returns `false`.

bool	isWindowType () const
	Returns `true` if the object is a window; otherwise returns `false`.

bool	isQuickItemType () const
	Returns `true` if the object is a QQuickItem; otherwise returns `false`.

bool	signalsBlocked () const noexcept
	Returns `true` if signals are blocked; otherwise returns `false`.

bool	blockSignals (bool b) noexcept
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it).

QThread *	thread () const
	Returns the thread in which the object lives.

bool	moveToThread (QThread *thread QT6_DECL_NEW_OVERLOAD_TAIL)
	Changes the thread affinity for this object and its children and returns `true` on success.

int	startTimer (int interval, Qt::TimerType timerType=Qt::CoarseTimer)
	This is an overloaded function that will start a timer of type timerType and a timeout of interval milliseconds.

int	startTimer (std::chrono::nanoseconds time, Qt::TimerType timerType=Qt::CoarseTimer)

void	killTimer (int id)
	Kills the timer with timer identifier, id.

void	killTimer (Qt::TimerId id)

template<typename T >
T	findChild (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns the child of this object that can be cast into type T and that is called name, or \nullptr if there is no such object.

template<typename T >
QList< T >	findChildren (QAnyStringView aName, Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects.

template<typename T >
T	findChild (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

template<typename T >
QList< T >	findChildren (Qt::FindChildOptions options=Qt::FindChildrenRecursively) const
	This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.

const QObjectList &	children () const
	Returns a list of child objects.

void	setParent (QObject *parent)
	Makes the object a child of parent.

void	installEventFilter (QObject *filterObj)
	Installs an event filter filterObj on this object.

void	removeEventFilter (QObject *obj)
	Removes an event filter object obj from this object.

QMetaObject::Connection	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=nullptr, const QObject receiver=nullptr, const char *member=nullptr) const

bool	disconnect (const QObject receiver, const char member=nullptr) const

void	dumpObjectTree () const
	Dumps a tree of children to the debug output.

void	dumpObjectInfo () const
	Dumps information about signal connections, etc.

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value.

bool	setProperty (const char *name, QVariant &&value)

QVariant	property (const char *name) const
	Returns the value of the object's name property.

QList< QByteArray >	dynamicPropertyNames () const

QBindingStorage *	bindingStorage ()

const QBindingStorage *	bindingStorage () const

QObject *	parent () const
	Returns a pointer to the parent object.

bool	inherits (const char *classname) const
	Returns `true` if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns `false`.

Static Public Member Functions
static QList< QString >	availableBackendNames ()

static QString	defaultBackendName ()

static QTlsBackend *	findBackend (const QString &backendName)

static QTlsBackend *	activeOrAnyBackend ()

static QList< QSsl::SslProtocol >	supportedProtocols (const QString &backendName)

static QList< QSsl::SupportedFeature >	supportedFeatures (const QString &backendName)

static QList< QSsl::ImplementedClass >	implementedClasses (const QString &backendName)

template<class DynamicType , class TLSObject >
static DynamicType *	backend (const TLSObject &o)

static void	resetBackend (QSslKey &key, QTlsPrivate::TlsKey *keyBackend)

static void	setupClientPskAuth (QSslPreSharedKeyAuthenticator auth, const char hint, int hintLength, unsigned maxIdentityLen, unsigned maxPskLen)

static void	setupServerPskAuth (QSslPreSharedKeyAuthenticator auth, const char identity, const QByteArray &identityHint, unsigned maxPskLen)

Static Public Member Functions inherited from QObject
static QMetaObject::Connection	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	\threadsafe

static QMetaObject::Connection	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::ContextTypeForFunctor< Func2 >::ContextType context, Func2 &&slot, Qt::ConnectionType type=Qt::AutoConnection)

template<typename Func1 , typename Func2 >
static QMetaObject::Connection	connect (const typename QtPrivate::FunctionPointer< Func1 >::Object *sender, Func1 signal, Func2 &&slot)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	\threadsafe

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static bool	disconnect (const QMetaObject::Connection &)
	Disconnect a connection.

template<typename Func1 , typename Func2 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const typename QtPrivate::FunctionPointer< Func2 >::Object receiver, Func2 slot)

template<typename Func1 >
static bool	disconnect (const typename QtPrivate::FunctionPointer< Func1 >::Object sender, Func1 signal, const QObject receiver, void **zero)

Static Public Attributes
static constexpr const int	nameIndexSchannel = 0

static constexpr const int	nameIndexSecureTransport = 1

static constexpr const int	nameIndexOpenSSL = 2

static constexpr const int	nameIndexCertOnly = 3

static const QString	builtinBackendNames []

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	\threadsafe

Signals inherited from QObject
void	destroyed (QObject *=nullptr)
	This signal is emitted immediately before the object obj is destroyed, after any instances of QPointer have been notified, and cannot be blocked.

void	objectNameChanged (const QString &objectName, QPrivateSignal)
	This signal is emitted after the object's name has been changed.

Protected Member Functions inherited from QObject
QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns \nullptr.

int	senderSignalIndex () const

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal.

bool	isSignalConnected (const QMetaMethod &signal) const

virtual void	timerEvent (QTimerEvent *event)
	This event handler can be reimplemented in a subclass to receive timer events for the object.

virtual void	childEvent (QChildEvent *event)
	This event handler can be reimplemented in a subclass to receive child events.

virtual void	customEvent (QEvent *event)
	This event handler can be reimplemented in a subclass to receive custom events.

virtual void	connectNotify (const QMetaMethod &signal)

virtual void	disconnectNotify (const QMetaMethod &signal)

	QObject (QObjectPrivate &dd, QObject *parent=nullptr)

Protected Attributes inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Properties inherited from QObject
QString	objectName
	the name of this object

Related Symbols inherited from QObject
template< class T > T	qobject_cast (const QObject *object)
	Returns the given object cast to type T if the object is of type T (or of a subclass); otherwise returns \nullptr.

template< typename T > T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

template< typename T > QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

	QObjectList
	\macro Q_CLASSINFO(Name, Value)

Detailed Description

QTlsBackend is a factory class, providing implementations for the QSsl classes.

(Network-private)

The purpose of QTlsBackend is to enable and simplify the addition of new TLS backends to be used by QSslSocket and related classes. Starting from Qt 6.1, these backends have plugin-based design (and thus can co-exist simultaneously, unlike pre 6.1 times), although any given run of a program can only use one of them.

Inheriting from QTlsBackend and creating an object of such a class adds a new backend into the list of available TLS backends.

A new backend must provide a list of classes, features and protocols it supports, and override the corresponding virtual functions that create backend-specific implementations for these QSsl-classes.

The base abstract class - QTlsBackend - provides, where possible, default implementations of its virtual member functions. These default implementations can be overridden by a derived backend class, if needed.

QTlsBackend also provides some auxiliary functions that a derived backend class can use to interact with the internals of network-private classes.

See also: QSslSocket::availableBackends(), supportedFeatures(), supportedProtocols(), implementedClasses()

Definition at line 265 of file qtlsbackend_p.h.

Constructor & Destructor Documentation

◆ QTlsBackend()

QTlsBackend::QTlsBackend ( )

The default constructor, adds a new backend to the list of available backends.

See also: ~QTlsBackend(), availableBackendNames(), QSslSocket::availableBackends()

Definition at line 167 of file qtlsbackend.cpp.

References QObject::connect(), QObject::destroyed(), and QCoreApplication::instance().

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◆ ~QTlsBackend()

QTlsBackend::~QTlsBackend ( )

override

Removes this backend from the list of available backends.

See also: QTlsBackend(), availableBackendNames(), QSslSocket::availableBackends()

Definition at line 185 of file qtlsbackend.cpp.

Member Function Documentation

◆ activeOrAnyBackend()

QTlsBackend * QTlsBackend::activeOrAnyBackend ( )

static

Returns the backend that QSslSocket is using. If Qt was built without TLS support, this function returns a minimal backend that only supports QSslCertificate.

See also: defaultBackend()

Definition at line 632 of file qtlsbackend.cpp.

References defaultBackendName(), findBackend(), and QSslSocketPrivate::tlsBackendInUse().

Referenced by QSslCertificate::QSslCertificate(), QSslCertificate::QSslCertificate(), QSslCertificatePrivate::QSslCertificatePrivate(), QSslCertificate::fromData(), QSslCertificate::importPkcs12(), and QSslCertificate::verify().

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◆ availableBackendNames()

QList< QString > QTlsBackend::availableBackendNames ( )

static

Returns a list of names of available backends.

Note: This list contains only properly initialized backends.

See also: QTlsBackend(), isValid()

Definition at line 566 of file qtlsbackend.cpp.

Referenced by QSslSocket::availableBackends(), defaultBackendName(), and QSslSocket::setActiveBackend().

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◆ backend()

template<class DynamicType , class TLSObject >

static DynamicType * QTlsBackend::backend ( const TLSObject & o )

inlinestatic

Definition at line 334 of file qtlsbackend_p.h.

References o.

◆ backendName()

QString QTlsBackend::backendName ( ) const

pure virtual

Returns the name of this backend. The name will be reported by QSslSocket::availableBackends(). Example of backend names: "openssl", "schannel", "securetransport".

See also: QSslSocket::availableBackends(), isValid()

Implemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Referenced by findBackend(), implementedClasses(), Q_APPLICATION_STATIC(), supportedFeatures(), and supportedProtocols().

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◆ createCertificate()

QTlsPrivate::X509Certificate * QTlsBackend::createCertificate ( ) const

virtual

If QSsl::ImplementedClass::Certificate is present in this backend's implementedClasses(), the backend must reimplement this method to return a dynamically-allocated instance of an implementation-specific type, inheriting from the class QTlsPrivate::X509Certificate. The default implementation of this function returns \nullptr.

See also: QSslCertificate, QTlsPrivate::X509Certificate, implementedClasses()

Reimplemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 298 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

Referenced by QSslCertificatePrivate::QSslCertificatePrivate().

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◆ createDtlsCookieVerifier()

QTlsPrivate::DtlsCookieVerifier * QTlsBackend::createDtlsCookieVerifier ( ) const

virtual

If QSsl::ImplementedClass::DtlsCookie is present in this backend's implementedClasses(), the backend must reimplement this method to return a dynamically-allocated instance of an implementation-specific type, inheriting from the class QTlsPrivate::DtlsCookieVerifier. The default implementation returns \nullptr.

See also: QDtlsClientVerifier, QTlsPrivate::DtlsCookieVerifier, implementedClasses()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 359 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ createDtlsCryptograph()

QTlsPrivate::DtlsCryptograph * QTlsBackend::createDtlsCryptograph	(	class QDtls *	qObject,
		int	mode ) const

virtual

If QSsl::ImplementedClass::Dtls is present in this backend's implementedClasses(), the backend must reimplement this method to return a dynamically-allocated instance of an implementation-specific type, inheriting from the class QTlsPrivate::DtlsCryptograph. The default implementation of this function returns \nullptr.

See also: QDtls, QTlsPrivate::DtlsCryptograph, implementedClasses()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 342 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ createKey()

QTlsPrivate::TlsKey * QTlsBackend::createKey ( ) const

virtual

If QSsl::ImplementedClass::Key is present in this backend's implementedClasses(), the backend must reimplement this method to return a dynamically-allocated instance of an implementation-specific type, inheriting from the class QTlsPrivate::TlsKey. The default implementation of this function returns \nullptr.

See also: QSslKey, implementedClasses(), QTlsPrivate::TlsKey

Reimplemented in QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 283 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ createTlsCryptograph()

QTlsPrivate::TlsCryptograph * QTlsBackend::createTlsCryptograph ( ) const

virtual

If QSsl::ImplementedClass::Socket is present in this backend's implementedClasses(), the backend must reimplement this method to return a dynamically-allocated instance of an implementation-specific type, inheriting from the class QTlsPrivate::TlsCryptograph. The default implementation of this function returns \nullptr.

See also: QSslSocket, QTlsPrivate::TlsCryptograph, implementedClasses()

Reimplemented in QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 327 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ curveIdFromLongName()

int QTlsBackend::curveIdFromLongName ( const QString & name ) const

virtual

If this backend provides information about available elliptic curves, this function should return a unique integer identifier for a curve named name, which is a conventional long name for the curve. The default implementation returns 0.

Note: The meaning of a curve identifier is implementation-specific.

See also: QSslElliptiCurve::longName()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 466 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ curveIdFromShortName()

int QTlsBackend::curveIdFromShortName ( const QString & name ) const

virtual

If this backend provides information about available elliptic curves, this function should return a unique integer identifier for a curve named name, which is a conventional short name for the curve. The default implementation returns 0.

Note: The meaning of a curve identifier is implementation-specific.

See also: QSslEllipticCurve::shortName()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 448 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ defaultBackendName()

QString QTlsBackend::defaultBackendName ( )

static

Returns the name of the backend that QSslSocket() would use by default. If no backend was found, the function returns an empty string.

Definition at line 579 of file qtlsbackend.cpp.

References availableBackendNames(), builtinBackendNames, nameIndexOpenSSL, nameIndexSchannel, nameIndexSecureTransport, and pos.

Referenced by QSslSocket::activeBackend(), activeOrAnyBackend(), and QSslSocketPrivate::tlsBackendInUse().

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◆ dhParametersFromDer()

int QTlsBackend::dhParametersFromDer	(	const QByteArray &	derData,
		QByteArray *	data ) const

virtual

If this backend supports the class QSslDiffieHellmanParameters, this function is needed for construction of a QSslDiffieHellmanParameters from DER encoded data. This function is expected to return a value that matches an enumerator in QSslDiffieHellmanParameters::Error enumeration. The default implementation of this function returns 0 (equals to QSslDiffieHellmanParameters::NoError).

See also: QSslDiffieHellmanParameters, implementedClasses()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 532 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ dhParametersFromPem()

int QTlsBackend::dhParametersFromPem	(	const QByteArray &	pemData,
		QByteArray *	data ) const

virtual

If this backend supports the class QSslDiffieHellmanParameters, this function is is needed for construction of a QSslDiffieHellmanParameters from PEM encoded data. This function is expected to return a value that matches an enumerator in QSslDiffieHellmanParameters::Error enumeration. The default implementation of this function returns 0 (equals to QSslDiffieHellmanParameters::NoError).

See also: QSslDiffieHellmanParameters, implementedClasses()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 550 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ ellipticCurvesIds()

QList< int > QTlsBackend::ellipticCurvesIds ( ) const

virtual

If QSsl::ImplementedClass::EllipticCurve is present in this backend's implementedClasses(), and the backend provides information about supported curves, it must reimplement this method to return a list of unique identifiers of the supported elliptic curves. The default implementation returns an empty list.

Note: The meaning of a curve identifier is implementation-specific.

See also: implemenedClasses(), QSslEllipticCurve

Reimplemented in QTlsBackendOpenSSL.

Definition at line 431 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ ensureInitialized()

void QTlsBackend::ensureInitialized ( ) const

virtual

QSslSocket and related classes call this function to ensure that backend's internal resources - e.g. CA certificates, or ciphersuites - were properly initialized.

Reimplemented in QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 267 of file qtlsbackend.cpp.

◆ findBackend()

QTlsBackend * QTlsBackend::findBackend ( const QString & backendName )

static

Returns a backend named backendName, if it exists. Otherwise, it returns \nullptr.

See also: backendName(), QSslSocket::availableBackends()

Definition at line 613 of file qtlsbackend.cpp.

References backendName(), and qCWarning.

Referenced by activeOrAnyBackend(), and QSslSocketPrivate::tlsBackendInUse().

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◆ implementedClasses() [1/2]

virtual QList< QSsl::ImplementedClass > QTlsBackend::implementedClasses ( ) const

pure virtual

Implemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Referenced by QSslSocket::implementedClasses().

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◆ implementedClasses() [2/2]

QList< QSsl::ImplementedClass > QTlsBackend::implementedClasses ( const QString & backendName )

static

Returns a list of classes that a backend named backendName supports. E.g. a backend may implement QSslSocket (QSsl::ImplementedClass::Socket), and QDtls (QSsl::ImplementedClass::Dtls).

See also: QSsl::ImplementedClass

Definition at line 691 of file qtlsbackend.cpp.

References backendName().

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◆ isTlsNamedCurve()

bool QTlsBackend::isTlsNamedCurve ( int cid ) const

virtual

Returns true if the elliptic curve identified by cid is one of the named curves, that can be used in the key exchange when using an elliptic curve cipher with TLS; false otherwise. The default implementation returns false.

Note: The meaning of curve identifier is implementation-specific.

Reimplemented in QTlsBackendOpenSSL.

Definition at line 515 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ isValid()

bool QTlsBackend::isValid ( ) const

virtual

Returns true if this backend was initialised successfully. The default implementation always returns true.

Note: This function must be overridden if a particular backend has a non-trivial initialization that can fail. If reimplemented, returning false will exclude this backend from the list of backends, reported as available by QSslSocket.

See also: QSslSocket::availableBackends()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 203 of file qtlsbackend.cpp.

Referenced by Q_APPLICATION_STATIC().

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◆ longNameForId()

QString QTlsBackend::longNameForId ( int cid ) const

virtual

If this backend provides information about available elliptic curves, this function should return a conventional long name for a curve identified by cid. The default implementation returns an empty string.

Note: The meaning of a curve identifier is implementation-specific.

See also: ellipticCurvesIds(), QSslEllipticCurve::shortName()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 500 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ resetBackend()

void QTlsBackend::resetBackend	(	QSslKey &	key,
		QTlsPrivate::TlsKey *	keyBackend )

static

Auxiliary function. Initializes key to use keyBackend.

Definition at line 706 of file qtlsbackend.cpp.

References Q_UNUSED.

Referenced by QSslCertificate::publicKey().

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◆ setupClientPskAuth()

void QTlsBackend::setupClientPskAuth	(	QSslPreSharedKeyAuthenticator *	auth,
		const char *	hint,
		int	hintLength,
		unsigned	maxIdentityLen,
		unsigned	maxPskLen )

static

Auxiliary function. Initializes client-side auth using the hint, hintLength, maxIdentityLength and maxPskLen.

Definition at line 721 of file qtlsbackend.cpp.

References QByteArray::fromRawData(), hint(), Q_ASSERT, and Q_UNUSED.

Referenced by QDtlsPrivateOpenSSL::pskClientCallback(), and QTlsPrivate::TlsCryptographOpenSSL::pskClientTlsCallback().

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◆ setupServerPskAuth()

void QTlsBackend::setupServerPskAuth	(	QSslPreSharedKeyAuthenticator *	auth,
		const char *	identity,
		const QByteArray &	identityHint,
		unsigned	maxPskLen )

static

Auxiliary function. Initializes server-side auth using the identity, identityHint and maxPskLen.

Definition at line 745 of file qtlsbackend.cpp.

References Q_ASSERT, and Q_UNUSED.

Referenced by QDtlsPrivateOpenSSL::pskServerCallback(), and QTlsPrivate::TlsCryptographOpenSSL::pskServerTlsCallback().

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◆ shortNameForId()

QString QTlsBackend::shortNameForId ( int cid ) const

virtual

If this backend provides information about available elliptic curves, this function should return a conventional short name for a curve identified by cid. The default implementation returns an empty string.

Note: The meaning of a curve identifier is implementation-specific.

See also: ellipticCurvesIds(), QSslEllipticCurve::shortName()

Reimplemented in QTlsBackendOpenSSL.

Definition at line 483 of file qtlsbackend.cpp.

References Q_UNUSED, and REPORT_MISSING_SUPPORT.

◆ supportedFeatures() [1/2]

virtual QList< QSsl::SupportedFeature > QTlsBackend::supportedFeatures ( ) const

pure virtual

Implemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Referenced by QSslSocket::supportedFeatures().

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◆ supportedFeatures() [2/2]

QList< QSsl::SupportedFeature > QTlsBackend::supportedFeatures ( const QString & backendName )

static

Returns a list of features that a backend named backendName supports. E.g. a backend may support PSK (pre-shared keys, defined as QSsl::SupportedFeature::Psk) or ALPN (application layer protocol negotiation, identified by QSsl::SupportedFeature::ClientSideAlpn or QSsl::SupportedFeature::ServerSideAlpn).

See also: QSsl::SupportedFeature

Definition at line 672 of file qtlsbackend.cpp.

References backendName().

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◆ supportedProtocols() [1/2]

virtual QList< QSsl::SslProtocol > QTlsBackend::supportedProtocols ( ) const

pure virtual

Implemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Referenced by QSslSocket::supportedProtocols().

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◆ supportedProtocols() [2/2]

QList< QSsl::SslProtocol > QTlsBackend::supportedProtocols ( const QString & backendName )

static

Returns a list of TLS and DTLS protocol versions, that a backend named backendName supports.

Note: This list is supposed to also include range-based versions, which allows negotiation of protocols during the handshake, so that these versions can be used when configuring QSslSocket (e.g. QSsl::TlsV1_2OrLater).

See also: QSsl::SslProtocol

Definition at line 652 of file qtlsbackend.cpp.

References backendName().

Here is the call graph for this function:

◆ systemCaCertificates()

QList< QSslCertificate > QTlsBackend::systemCaCertificates ( ) const

virtual

This function returns a list of system CA certificates - e.g. certificates, loaded from a system store, if available. This function allows implementation of the class QSslConfiguration. The default implementation of this function returns an empty list.

See also: QSslCertificate, QSslConfiguration

Reimplemented in QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 312 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ tlsLibraryBuildVersionNumber()

long QTlsBackend::tlsLibraryBuildVersionNumber ( ) const

virtual

Returns an implementation-specific integer value, representing the TLS library's version that this backend was built against (i.e. compile-time library version). The default implementation returns 0.

See also: tlsLibraryVersionNumber()

Reimplemented in QTlsBackendOpenSSL, and QSchannelBackend.

Definition at line 244 of file qtlsbackend.cpp.

◆ tlsLibraryBuildVersionString()

QString QTlsBackend::tlsLibraryBuildVersionString ( ) const

virtual

Returns an implementation-specific string, representing the TLS library's version that this backend was built against (i.e. compile-time version). The default implementation returns an empty string.

See also: tlsLibraryVersionString()

Reimplemented in QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 257 of file qtlsbackend.cpp.

◆ tlsLibraryVersionNumber()

long QTlsBackend::tlsLibraryVersionNumber ( ) const

virtual

Returns an implementations-specific integer value, representing the TLS library's version, that is currently used by this backend (i.e. runtime library version). The default implementation returns 0.

See also: tlsLibraryBuildVersionNumber()

Reimplemented in QTlsBackendOpenSSL, and QSchannelBackend.

Definition at line 216 of file qtlsbackend.cpp.

◆ tlsLibraryVersionString()

QString QTlsBackend::tlsLibraryVersionString ( ) const

virtual

Returns an implementation-specific string, representing the TLS library's version, that is currently used by this backend (i.e. runtime library version). The default implementation returns an empty string.

See also: tlsLibraryBuildVersionString()

Reimplemented in QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 230 of file qtlsbackend.cpp.

◆ X509DerReader()

QTlsPrivate::X509DerReaderPtr QTlsBackend::X509DerReader ( ) const

virtual

Returns a pointer to function, that can read certificates in DER format. The default implementation returns \nullptr.

See also: QSslCertificate

Reimplemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 401 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ X509PemReader()

QTlsPrivate::X509PemReaderPtr QTlsBackend::X509PemReader ( ) const

virtual

Returns a pointer to function, that reads certificates in PEM format. The default implementation returns \nullptr.

See also: QSslCertificate

Reimplemented in QTlsBackendCertOnly, QTlsBackendOpenSSL, QSchannelBackend, and QSecureTransportBackend.

Definition at line 388 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ X509Pkcs12Reader()

QTlsPrivate::X509Pkcs12ReaderPtr QTlsBackend::X509Pkcs12Reader ( ) const

virtual

Returns a pointer to function, that can read certificates in PKCS 12 format. The default implementation returns \nullptr.

See also: QSslCertificate

Reimplemented in QTlsBackendOpenSSL, and QSchannelBackend.

Definition at line 414 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

◆ X509Verifier()

QTlsPrivate::X509ChainVerifyPtr QTlsBackend::X509Verifier ( ) const

virtual

If QSsl::SupportedFeature::CertificateVerification is present in this backend's supportedFeatures(), the backend must reimplement this method to return a pointer to a function, that checks a certificate (or a chain of certificates) against available CA certificates. The default implementation returns \nullptr.

See also: supportedFeatures(), QSslCertificate

Reimplemented in QTlsBackendOpenSSL.

Definition at line 375 of file qtlsbackend.cpp.

References REPORT_MISSING_SUPPORT.

Member Data Documentation

◆ builtinBackendNames

const QString QTlsBackend::builtinBackendNames

static

Initial value:

= {
    QStringLiteral("schannel"),
    QStringLiteral("securetransport"),
    QStringLiteral("openssl"),
    QStringLiteral("cert-only")
}

Definition at line 154 of file qtlsbackend_p.h.

Referenced by QTlsBackendCertOnly::backendName(), QTlsBackendOpenSSL::backendName(), QSchannelBackend::backendName(), QSecureTransportBackend::backendName(), and defaultBackendName().

◆ nameIndexCertOnly

constexpr const int QTlsBackend::nameIndexCertOnly = 3

staticconstexpr

Definition at line 329 of file qtlsbackend_p.h.

Referenced by QTlsBackendCertOnly::backendName().

◆ nameIndexOpenSSL

constexpr const int QTlsBackend::nameIndexOpenSSL = 2

staticconstexpr

Definition at line 328 of file qtlsbackend_p.h.

Referenced by QTlsBackendOpenSSL::backendName(), and defaultBackendName().

◆ nameIndexSchannel

constexpr const int QTlsBackend::nameIndexSchannel = 0

staticconstexpr

Definition at line 326 of file qtlsbackend_p.h.

Referenced by QSchannelBackend::backendName(), and defaultBackendName().

◆ nameIndexSecureTransport

constexpr const int QTlsBackend::nameIndexSecureTransport = 1

staticconstexpr

Definition at line 327 of file qtlsbackend_p.h.

Referenced by QSecureTransportBackend::backendName(), and defaultBackendName().

The documentation for this class was generated from the following files:

qtbase/src/network/ssl/qtlsbackend_p.h (b72f013fcc3977ff527fba666ab13064061c282c)
qtbase/src/network/ssl/qtlsbackend.cpp (f7792d2b6d3d1e5dd47a8f6429b817b793bcfb9b)

Public Member Functions

Static Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ QTlsBackend()

◆ ~QTlsBackend()

Member Function Documentation

◆ activeOrAnyBackend()

◆ availableBackendNames()

◆ backend()

◆ backendName()

◆ createCertificate()

◆ createDtlsCookieVerifier()

◆ createDtlsCryptograph()

◆ createKey()

◆ createTlsCryptograph()

◆ curveIdFromLongName()

◆ curveIdFromShortName()

◆ defaultBackendName()

◆ dhParametersFromDer()

◆ dhParametersFromPem()

◆ ellipticCurvesIds()

◆ ensureInitialized()

◆ findBackend()

◆ implementedClasses() [1/2]

◆ implementedClasses() [2/2]

◆ isTlsNamedCurve()

◆ isValid()

◆ longNameForId()

◆ resetBackend()

◆ setupClientPskAuth()

◆ setupServerPskAuth()

◆ shortNameForId()

◆ supportedFeatures() [1/2]

◆ supportedFeatures() [2/2]

◆ supportedProtocols() [1/2]

◆ supportedProtocols() [2/2]

◆ systemCaCertificates()

◆ tlsLibraryBuildVersionNumber()

◆ tlsLibraryBuildVersionString()

◆ tlsLibraryVersionNumber()

◆ tlsLibraryVersionString()

◆ X509DerReader()

◆ X509PemReader()

◆ X509Pkcs12Reader()

◆ X509Verifier()

Member Data Documentation

◆ builtinBackendNames

◆ nameIndexCertOnly

◆ nameIndexOpenSSL

◆ nameIndexSchannel

◆ nameIndexSecureTransport