| 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 | |
| 81 | void setDtlsError(QDtlsError code, const QString &description) |
| 82 | { |
| 83 | errorCode = code; |
| 84 | errorDescription = description; |
| 85 | } |
| 86 | |
| 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 | |