1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2017 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtNetwork module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QDTLS_P_H 41 #define QDTLS_P_H 42 43 #include <private/qtnetworkglobal_p.h> 44 45 #include "qdtls.h" 46 47 #include <private/qsslconfiguration_p.h> 48 #include <private/qobject_p.h> 49 50 #include <QtNetwork/qabstractsocket.h> 51 #include <QtNetwork/qhostaddress.h> 52 #include <QtNetwork/qsslsocket.h> 53 #include <QtNetwork/qsslcipher.h> 54 #include <QtNetwork/qssl.h> 55 56 #include <QtCore/qcryptographichash.h> 57 #include <QtCore/qbytearray.h> 58 #include <QtCore/qstring.h> 59 60 // 61 // W A R N I N G 62 // ------------- 63 // 64 // This file is not part of the Qt API. It exists purely as an 65 // implementation detail. This header file may change from version to 66 // version without notice, or even be removed. 67 // 68 // We mean it. 69 // 70 71 QT_REQUIRE_CONFIG(dtls); 72 73 QT_BEGIN_NAMESPACE 74 75 class QHostAddress; 76 77 class QDtlsBasePrivate : public QObjectPrivate 78 { 79 public: 80 setDtlsError(QDtlsError code,const QString & description)81 void setDtlsError(QDtlsError code, const QString &description) 82 { 83 errorCode = code; 84 errorDescription = description; 85 } 86 clearDtlsError()87 void clearDtlsError() 88 { 89 errorCode = QDtlsError::NoError; 90 errorDescription.clear(); 91 } 92 93 void setConfiguration(const QSslConfiguration &configuration); 94 QSslConfiguration configuration() const; 95 96 bool setCookieGeneratorParameters(QCryptographicHash::Algorithm alg, 97 const QByteArray &secret); 98 99 static bool isDtlsProtocol(QSsl::SslProtocol protocol); 100 101 QHostAddress remoteAddress; 102 quint16 remotePort = 0; 103 quint16 mtuHint = 0; 104 105 QDtlsError errorCode = QDtlsError::NoError; 106 QString errorDescription; 107 QSslConfigurationPrivate dtlsConfiguration; 108 QSslSocket::SslMode mode = QSslSocket::SslClientMode; 109 QSslCipher sessionCipher; 110 QSsl::SslProtocol sessionProtocol = QSsl::UnknownProtocol; 111 QString peerVerificationName; 112 QByteArray secret; 113 114 #ifdef QT_CRYPTOGRAPHICHASH_ONLY_SHA1 115 QCryptographicHash::Algorithm hashAlgorithm = QCryptographicHash::Sha1; 116 #else 117 QCryptographicHash::Algorithm hashAlgorithm = QCryptographicHash::Sha256; 118 #endif 119 }; 120 121 class QDtlsClientVerifierPrivate : public QDtlsBasePrivate 122 { 123 public: 124 125 QByteArray verifiedClientHello; 126 127 virtual bool verifyClient(QUdpSocket *socket, const QByteArray &dgram, 128 const QHostAddress &address, quint16 port) = 0; 129 }; 130 131 class QDtlsPrivate : public QDtlsBasePrivate 132 { 133 public: 134 135 virtual bool startHandshake(QUdpSocket *socket, const QByteArray &dgram) = 0; 136 virtual bool handleTimeout(QUdpSocket *socket) = 0; 137 virtual bool continueHandshake(QUdpSocket *socket, const QByteArray &dgram) = 0; 138 virtual bool resumeHandshake(QUdpSocket *socket) = 0; 139 virtual void abortHandshake(QUdpSocket *socket) = 0; 140 virtual void sendShutdownAlert(QUdpSocket *socket) = 0; 141 142 virtual qint64 writeDatagramEncrypted(QUdpSocket *socket, const QByteArray &dgram) = 0; 143 virtual QByteArray decryptDatagram(QUdpSocket *socket, const QByteArray &dgram) = 0; 144 145 QDtls::HandshakeState handshakeState = QDtls::HandshakeNotStarted; 146 147 QVector<QSslError> tlsErrors; 148 QVector<QSslError> tlsErrorsToIgnore; 149 150 bool connectionEncrypted = false; 151 }; 152 153 QT_END_NAMESPACE 154 155 #endif // QDTLS_P_H 156