Add SecureTransport based SSL backend for iOS and OS X

Add support for SSL on iOS/OS X by adding a SecureTransport based
backend.

[ChangeLog][QtNetwork][QSslSocket] A new SSL backend for iOS and OS X,
implemented with Apple's Secure Transport (Security Framework).

Change-Id: I7466db471be2a8a2170f9af9d6ad4c7b6425738b
Reviewed-by: Richard J. Moore <rich@kde.org>

1 files changed, 91 insertions, 0 deletions

diff --git a/src/network/ssl/qsslkey_mac.cpp b/src/network/ssl/qsslkey_mac.cpp
new file mode 100644
index 0000000000..6e15012dc9
--- /dev/null
+++ b/src/network/ssl/qsslkey_mac.cpp
@@ -0,0 +1,91 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Jeremy Lainé <jeremy.laine@m4x.org>
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtNetwork module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qsslkey.h"
+#include "qsslkey_p.h"
+
+#include <CommonCrypto/CommonCrypto.h>
+
+QT_USE_NAMESPACE
+
+static QByteArray wrapCCCrypt(CCOperation ccOp,
+                              QSslKeyPrivate::Cipher cipher,
+                              const QByteArray &data,
+                              const QByteArray &key, const QByteArray &iv)
+{
+    int blockSize;
+    CCAlgorithm ccAlgorithm;
+    switch (cipher) {
+    case QSslKeyPrivate::DesCbc:
+        blockSize = kCCBlockSizeDES;
+        ccAlgorithm = kCCAlgorithmDES;
+        break;
+    case QSslKeyPrivate::DesEde3Cbc:
+        blockSize = kCCBlockSize3DES;
+        ccAlgorithm = kCCAlgorithm3DES;
+        break;
+    case QSslKeyPrivate::Rc2Cbc:
+        blockSize = kCCBlockSizeRC2;
+        ccAlgorithm = kCCAlgorithmRC2;
+        break;
+    };
+    size_t plainLength = 0;
+    QByteArray plain(data.size() + blockSize, 0);
+    CCCryptorStatus status = CCCrypt(
+        ccOp, ccAlgorithm, kCCOptionPKCS7Padding,
+        key.constData(), key.size(),
+        iv.constData(),
+        data.constData(), data.size(),
+        plain.data(), plain.size(), &plainLength);
+    if (status == kCCSuccess)
+        return plain.left(plainLength);
+    return QByteArray();
+}
+
+QByteArray QSslKeyPrivate::decrypt(Cipher cipher, const QByteArray &data, const QByteArray &key, const QByteArray &iv)
+{
+    return wrapCCCrypt(kCCDecrypt, cipher, data, key, iv);
+}
+
+QByteArray QSslKeyPrivate::encrypt(Cipher cipher, const QByteArray &data, const QByteArray &key, const QByteArray &iv)
+{
+    return wrapCCCrypt(kCCEncrypt, cipher, data, key, iv);
+}