Document Qt Network licenses

Also explicitly mention the GPL exception for OpenSSL.

Change-Id: I460189ee4d2dd79f8eca320ac82460e186b0f84c
Reviewed-by: Topi Reiniö <topi.reinio@theqtcompany.com>

3 files changed, 69 insertions, 6 deletions

diff --git a/src/network/doc/src/external-resources.qdoc b/src/network/doc/src/external-resources.qdoc
new file mode 100644
index 0000000000..f033ddc729
--- /dev/null
+++ b/src/network/doc/src/external-resources.qdoc
@@ -0,0 +1,36 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** 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 The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Free Documentation License Usage
+** Alternatively, this file may be used under the terms of the GNU Free
+** Documentation License version 1.3 as published by the Free Software
+** Foundation and appearing in the file included in the packaging of
+** this file. Please review the following information to ensure
+** the GNU Free Documentation License version 1.3 requirements
+** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \externalpage https://www.openssl.org/
+    \title OpenSSL Toolkit
+*/
+
+/*!
+    \externalpage https://www.openssl.org/source/license.html
+    \title OpenSSL License
+*/
diff --git a/src/network/doc/src/qtnetwork.qdoc b/src/network/doc/src/qtnetwork.qdoc
index f15b180625..7a95195da2 100644
--- a/src/network/doc/src/qtnetwork.qdoc
+++ b/src/network/doc/src/qtnetwork.qdoc
@@ -60,7 +60,37 @@
     \list
     \li \l{Qt Network C++ Classes}{C++ Classes}
     \endlist
+
+    \section1 Licenses and Attributions
+
+    Qt Network is available under commercial licenses from \l{The Qt Company}.
+    In addition, it is available under the
+    \l{GNU Lesser General Public License, version 3}, or
+    the \l{GNU General Public License, version 2}.
+    See \l{Qt Licensing} for further details.
+
+    Qt Network can use the \l{OpenSSL Toolkit} as a backend. The library is then
+    linked against OpenSSL in a way that requires compliance with the \l{OpenSSL
+    License}. To allow linking OpenSSL with Qt Network under the GPL, following
+    exceptions to the GPL do apply:
+
+    \badcode
+    In addition, as a special exception, the copyright holders listed above give
+    permission to link the code of its release of Qt with the OpenSSL project's
+    "OpenSSL" library (or modified versions of the "OpenSSL" library that use the
+    same license as the original version), and distribute the linked executables.
+
+    You must comply with the GNU General Public License version 2 in all
+    respects for all of the code used other than the "OpenSSL" code.  If you
+    modify this file, you may extend this exception to your version of the file,
+    but you are not obligated to do so.  If you do not wish to do so, delete
+    this exception statement from your version of this file.
+    \endcode
+
+    Also note shipping OpenSSL might cause \l{Import and Export Restrictions}
+    to apply.
 */
+
 /*!
     \module QtNetwork
     \title Qt Network C++ Classes
diff --git a/src/network/doc/src/ssl.qdoc b/src/network/doc/src/ssl.qdoc
index 5ad2cfafc6..e4948c393c 100644
--- a/src/network/doc/src/ssl.qdoc
+++ b/src/network/doc/src/ssl.qdoc
@@ -33,7 +33,7 @@
     \keyword SSL
 
     The classes below provide support for secure network communication using
-    the Secure Sockets Layer (SSL) protocol, using the OpenSSL Toolkit (\l{http://www.openssl.org/})
+    the Secure Sockets Layer (SSL) protocol, using the \l{OpenSSL Toolkit}
     to perform encryption and protocol handling.
 
     From Qt version 5.2 onwards, the officially supported version for OpenSSL
@@ -67,16 +67,13 @@
     To disable SSL support in a Qt build, configure Qt with the \c{-no-openssl}
     option.
 
-    \section1 Licensing Information
+    \section1 Import and Export Restrictions
 
-    \note Due to import and export restrictions in some parts of the world, we
+    Due to import and export restrictions in some parts of the world, we
     are unable to supply the OpenSSL Toolkit with Qt packages. Developers wishing
     to use SSL communication in their deployed applications should either ensure
     that their users have the appropriate libraries installed, or they should
     consult a suitably qualified legal professional to ensure that applications
     using code from the OpenSSL project are correctly certified for import
     and export in relevant regions of the world.
-
-    When the Qt Network module is built with SSL support, the library is linked
-    against OpenSSL in a way that requires OpenSSL license compliance.
 */