Adding upstream version 4:24.2.0.upstream/4%24.2.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1535 insertions, 0 deletions

diff --git a/sd/source/ui/remotecontrol/BluetoothServer.cxx b/sd/source/ui/remotecontrol/BluetoothServer.cxx
new file mode 100644
index 0000000000..0c568556b5
--- /dev/null
+++ b/sd/source/ui/remotecontrol/BluetoothServer.cxx
@@ -0,0 +1,1535 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#include "BluetoothServer.hxx"
+
+#include <iostream>
+#include <memory>
+#include <new>
+#include <string_view>
+
+#include <sal/log.hxx>
+
+#ifdef LINUX_BLUETOOTH
+  #include <glib.h>
+  #include <dbus/dbus.h>
+  #include <errno.h>
+  #include <fcntl.h>
+  #include <unistd.h>
+  #include <sys/socket.h>
+  #include <bluetooth/bluetooth.h>
+  #include <bluetooth/rfcomm.h>
+  #include "BluetoothServiceRecord.hxx"
+  #include "BufferedStreamSocket.hxx"
+#endif
+
+#ifdef _WIN32
+  // LO vs WinAPI conflict
+  #undef WB_LEFT
+  #undef WB_RIGHT
+  #include <winsock2.h>
+  #include <ws2bth.h>
+  #include "BufferedStreamSocket.hxx"
+#endif
+
+#ifdef MACOSX
+  #include <iomanip>
+  #include <osl/conditn.hxx>
+  #include <premac.h>
+  #import <CoreFoundation/CoreFoundation.h>
+  #import <IOBluetooth/IOBluetoothUtilities.h>
+  #import <IOBluetooth/objc/IOBluetoothSDPUUID.h>
+  #import <IOBluetooth/objc/IOBluetoothSDPServiceRecord.h>
+  #include <postmac.h>
+  #import "OSXBluetooth.h"
+  #include "OSXBluetoothWrapper.hxx"
+#endif
+
+#include "Communicator.hxx"
+#include <RemoteServer.hxx>
+
+#include <osl/mutex.hxx>
+
+using namespace sd;
+
+#ifdef LINUX_BLUETOOTH
+
+namespace {
+
+struct DBusObject {
+    OString maBusName;
+    OString maPath;
+    OString maInterface;
+
+    DBusObject() { }
+    DBusObject( const char *pBusName, const char *pPath, const char *pInterface )
+        : maBusName( pBusName ), maPath( pPath ), maInterface( pInterface ) { }
+
+    DBusMessage *getMethodCall( const char *pName )
+    {
+        return dbus_message_new_method_call( maBusName.getStr(), maPath.getStr(),
+                                             maInterface.getStr(), pName );
+    }
+    std::unique_ptr<DBusObject> cloneForInterface( const char *pInterface )
+    {
+        std::unique_ptr<DBusObject> pObject(new DBusObject());
+
+        pObject->maBusName = maBusName;
+        pObject->maPath = maPath;
+        pObject->maInterface = pInterface;
+
+        return pObject;
+    }
+};
+
+}
+
+static std::unique_ptr<DBusObject> getBluez5Adapter(DBusConnection *pConnection);
+
+struct sd::BluetoothServer::Impl {
+    // the glib mainloop running in the thread
+    GMainContext *mpContext;
+    DBusConnection *mpConnection;
+    std::unique_ptr<DBusObject> mpService;
+    enum class BluezVersion { BLUEZ4, BLUEZ5, UNKNOWN };
+    BluezVersion maBluezVersion;
+
+    Impl()
+        : mpContext( g_main_context_new() )
+        , mpConnection( nullptr )
+        , maBluezVersion( BluezVersion::UNKNOWN )
+    { }
+
+    std::unique_ptr<DBusObject> getAdapter()
+    {
+        if (mpService)
+        {
+            return mpService->cloneForInterface( "org.bluez.Adapter" );
+        }
+        else if (spServer->mpImpl->maBluezVersion == BluezVersion::BLUEZ5)
+        {
+            return getBluez5Adapter(mpConnection);
+        }
+        else
+        {
+            return nullptr;
+        }
+    }
+};
+
+static DBusConnection *
+dbusConnectToNameOnBus()
+{
+    DBusError aError;
+    DBusConnection *pConnection;
+
+    dbus_error_init( &aError );
+
+    pConnection = dbus_bus_get( DBUS_BUS_SYSTEM, &aError );
+    if( !pConnection || dbus_error_is_set( &aError ))
+    {
+        SAL_WARN( "sdremote.bluetooth", "failed to get dbus system bus: " << aError.message );
+        dbus_error_free( &aError );
+        return nullptr;
+    }
+
+    return pConnection;
+}
+
+static DBusMessage *
+sendUnrefAndWaitForReply( DBusConnection *pConnection, DBusMessage *pMsg )
+{
+    DBusPendingCall *pPending = nullptr;
+
+    if( !pMsg || !dbus_connection_send_with_reply( pConnection, pMsg, &pPending,
+                                                   -1 /* default timeout */ ) )
+    {
+        SAL_WARN( "sdremote.bluetooth", "Memory allocation failed on message send" );
+        dbus_message_unref( pMsg );
+        return nullptr;
+    }
+    dbus_connection_flush( pConnection );
+    dbus_message_unref( pMsg );
+
+    dbus_pending_call_block( pPending ); // block for reply
+
+    pMsg = dbus_pending_call_steal_reply( pPending );
+    if( !pMsg )
+        SAL_WARN( "sdremote.bluetooth", "no valid reply / timeout" );
+
+    dbus_pending_call_unref( pPending );
+    return pMsg;
+}
+
+static bool
+isBluez5Available(DBusConnection *pConnection)
+{
+    DBusMessage *pMsg;
+
+    // Simplest ways to check whether we have Bluez 5+ is to check
+    // that we can obtain adapters using the new interfaces.
+    // The first two error checks however don't tell us anything as they should
+    // succeed as long as dbus is working correctly.
+    pMsg = DBusObject( "org.bluez", "/", "org.freedesktop.DBus.ObjectManager" ).getMethodCall( "GetManagedObjects" );
+    if (!pMsg)
+    {
+        SAL_INFO("sdremote.bluetooth", "No GetManagedObjects call created");
+        return false;
+    }
+
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+    if (!pMsg)
+    {
+        SAL_INFO("sdremote.bluetooth", "No reply received");
+        return false;
+    }
+
+    // If dbus is working correctly and we aren't on bluez 5 this is where we
+    // should actually get the error.
+    if (dbus_message_get_error_name( pMsg ))
+    {
+        SAL_INFO( "sdremote.bluetooth", "GetManagedObjects call failed with \""
+                    << dbus_message_get_error_name( pMsg )
+                    << "\" -- we don't seem to have Bluez 5 available");
+        return false;
+    }
+    SAL_INFO("sdremote.bluetooth", "GetManagedObjects call seems to have succeeded -- we must be on Bluez 5");
+    dbus_message_unref(pMsg);
+    return true;
+}
+
+static std::unique_ptr<DBusObject>
+getBluez5Adapter(DBusConnection *pConnection)
+{
+    DBusMessage *pMsg;
+    // This returns a list of objects where we need to find the first
+    // org.bluez.Adapter1 .
+    pMsg = DBusObject( "org.bluez", "/", "org.freedesktop.DBus.ObjectManager" ).getMethodCall( "GetManagedObjects" );
+    if (!pMsg)
+        return nullptr;
+
+    const gchar* const pInterfaceType = "org.bluez.Adapter1";
+
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    DBusMessageIter aObjectIterator;
+    if (pMsg && dbus_message_iter_init(pMsg, &aObjectIterator))
+    {
+        if (DBUS_TYPE_ARRAY == dbus_message_iter_get_arg_type(&aObjectIterator))
+        {
+            DBusMessageIter aObject;
+            dbus_message_iter_recurse(&aObjectIterator, &aObject);
+            do
+            {
+                if (DBUS_TYPE_DICT_ENTRY == dbus_message_iter_get_arg_type(&aObject))
+                {
+                    DBusMessageIter aContainerIter;
+                    dbus_message_iter_recurse(&aObject, &aContainerIter);
+                    char *pPath = nullptr;
+                    do
+                    {
+                        if (DBUS_TYPE_OBJECT_PATH == dbus_message_iter_get_arg_type(&aContainerIter))
+                        {
+                            dbus_message_iter_get_basic(&aContainerIter, &pPath);
+                            SAL_INFO( "sdremote.bluetooth", "Something retrieved: '"
+                            << pPath << "' '");
+                        }
+                        else if (DBUS_TYPE_ARRAY == dbus_message_iter_get_arg_type(&aContainerIter))
+                        {
+                            DBusMessageIter aInnerIter;
+                            dbus_message_iter_recurse(&aContainerIter, &aInnerIter);
+                            do
+                            {
+                                if (DBUS_TYPE_DICT_ENTRY == dbus_message_iter_get_arg_type(&aInnerIter))
+                                {
+                                    DBusMessageIter aInnerInnerIter;
+                                    dbus_message_iter_recurse(&aInnerIter, &aInnerInnerIter);
+                                    do
+                                    {
+                                        if (DBUS_TYPE_STRING == dbus_message_iter_get_arg_type(&aInnerInnerIter))
+                                        {
+                                            char* pMessage;
+
+                                            dbus_message_iter_get_basic(&aInnerInnerIter, &pMessage);
+                                            if (pMessage == std::string_view("org.bluez.Adapter1"))
+                                            {
+                                                dbus_message_unref(pMsg);
+                                                if (pPath)
+                                                {
+                                                    return std::make_unique<DBusObject>( "org.bluez", pPath, pInterfaceType );
+                                                }
+                                                assert(false); // We should already have pPath provided for us.
+                                            }
+                                        }
+                                    }
+                                    while (dbus_message_iter_next(&aInnerInnerIter));
+                                }
+                            }
+                            while (dbus_message_iter_next(&aInnerIter));
+                        }
+                    }
+                    while (dbus_message_iter_next(&aContainerIter));
+                }
+            }
+            while (dbus_message_iter_next(&aObject));
+        }
+        dbus_message_unref(pMsg);
+    }
+
+    return nullptr;
+}
+
+static DBusObject *
+bluez4GetDefaultService( DBusConnection *pConnection )
+{
+    DBusMessage *pMsg;
+    DBusMessageIter it;
+    const gchar* const pInterfaceType = "org.bluez.Service";
+
+    // org.bluez.manager only exists for bluez 4.
+    // getMethodCall should return NULL if there is any issue e.g. the
+    // if org.bluez.manager doesn't exist.
+    pMsg = DBusObject( "org.bluez", "/", "org.bluez.Manager" ).getMethodCall( "DefaultAdapter" );
+
+    if (!pMsg)
+    {
+        SAL_WARN("sdremote.bluetooth", "Couldn't retrieve DBusObject for DefaultAdapter");
+        return nullptr;
+    }
+
+    SAL_INFO("sdremote.bluetooth", "successfully retrieved org.bluez.Manager.DefaultAdapter, attempting to use.");
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    if(!pMsg || !dbus_message_iter_init( pMsg, &it ) )
+    {
+        return nullptr;
+    }
+
+    // This works for Bluez 4
+    if( DBUS_TYPE_OBJECT_PATH == dbus_message_iter_get_arg_type( &it ) )
+    {
+        const char *pObjectPath = nullptr;
+        dbus_message_iter_get_basic( &it, &pObjectPath );
+        SAL_INFO( "sdremote.bluetooth", "DefaultAdapter retrieved: '"
+                << pObjectPath << "' '" << pInterfaceType << "'" );
+        dbus_message_unref( pMsg );
+        return new DBusObject( "org.bluez", pObjectPath, pInterfaceType );
+    }
+    // Some form of error, e.g. if we have bluez 5 we get a message that
+    // this method doesn't exist.
+    else if ( DBUS_TYPE_STRING == dbus_message_iter_get_arg_type( &it ) )
+    {
+        const char *pMessage = nullptr;
+        dbus_message_iter_get_basic( &it, &pMessage );
+        SAL_INFO( "sdremote.bluetooth", "Error message: '"
+                << pMessage << "' '" << pInterfaceType << "'" );
+    }
+    else
+    {
+        SAL_INFO( "sdremote.bluetooth", "invalid type of reply to DefaultAdapter: '"
+                << static_cast<char>(dbus_message_iter_get_arg_type( &it )) << "'" );
+    }
+    dbus_message_unref(pMsg);
+    return nullptr;
+}
+
+static bool
+bluez4RegisterServiceRecord( DBusConnection *pConnection, DBusObject *pAdapter,
+                            const char *pServiceRecord )
+{
+    DBusMessage *pMsg;
+    DBusMessageIter it;
+
+    pMsg = pAdapter->getMethodCall( "AddRecord" );
+    dbus_message_iter_init_append( pMsg, &it );
+    dbus_message_iter_append_basic( &it, DBUS_TYPE_STRING, &pServiceRecord );
+
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    if( !pMsg || !dbus_message_iter_init( pMsg, &it ) ||
+        dbus_message_iter_get_arg_type( &it ) != DBUS_TYPE_UINT32 )
+    {
+        SAL_WARN( "sdremote.bluetooth", "SDP registration failed" );
+        return false;
+    }
+
+    // We ignore the uint de-registration handle we get back:
+    // bluez will clean us up automatically on exit
+
+    return true;
+}
+
+static void
+bluezCreateAttachListeningSocket( GMainContext *pContext, GPollFD *pSocketFD )
+{
+    int nSocket;
+
+    pSocketFD->fd = -1;
+
+    if( ( nSocket = socket( AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM ) ) < 0 )
+    {
+        SAL_WARN( "sdremote.bluetooth", "failed to open bluetooth socket with error " << nSocket );
+        return;
+    }
+
+    sockaddr_rc aAddr;
+    // Initialize whole structure. Mainly to appease valgrind, which
+    // doesn't know about the padding at the end of sockaddr_rc which
+    // it will dutifully check for definedness. But also the standard
+    // definition of BDADDR_ANY is unusable in C++ code, so just use
+    // memset to set aAddr.rc_bdaddr to 0.
+    memset( &aAddr, 0, sizeof( aAddr ) );
+    aAddr.rc_family = AF_BLUETOOTH;
+    aAddr.rc_channel = 5;
+
+    int a;
+    if ( ( a = bind( nSocket, reinterpret_cast<sockaddr*>(&aAddr), sizeof(aAddr) ) ) < 0 ) {
+        SAL_WARN( "sdremote.bluetooth", "bind failed with error" << a );
+        close( nSocket );
+        return;
+    }
+
+    if ( ( a = listen( nSocket, 1 ) ) < 0 )
+    {
+        SAL_WARN( "sdremote.bluetooth", "listen failed with error" << a );
+        close( nSocket );
+        return;
+    }
+
+    // set non-blocking behaviour ...
+    if( fcntl( nSocket, F_SETFL, O_NONBLOCK) < 0 )
+    {
+        close( nSocket );
+        return;
+    }
+
+    pSocketFD->fd = nSocket;
+    pSocketFD->events = G_IO_IN | G_IO_PRI;
+    pSocketFD->revents = 0;
+
+    g_main_context_add_poll( pContext, pSocketFD, G_PRIORITY_DEFAULT );
+}
+
+static void
+bluezDetachCloseSocket( GMainContext *pContext, GPollFD *pSocketFD )
+{
+    if( pSocketFD->fd >= 0 )
+    {
+        close( pSocketFD->fd );
+        g_main_context_remove_poll( pContext, pSocketFD );
+        pSocketFD->fd = -1;
+    }
+}
+
+#endif // LINUX_BLUETOOTH
+
+#if defined(MACOSX)
+
+OSXBluetoothWrapper::OSXBluetoothWrapper( IOBluetoothRFCOMMChannel* channel ) :
+    mpChannel(channel),
+    mnMTU(0),
+    mHaveBytes(),
+    mMutex(),
+    mBuffer()
+{
+    // silly enough, can't write more than mnMTU bytes at once
+    mnMTU = [channel getMTU];
+
+    SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::OSXBluetoothWrapper(): mnMTU=" << mnMTU );
+}
+
+sal_Int32 OSXBluetoothWrapper::readLine( OString& aLine )
+{
+    SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::readLine()" );
+
+    while( true )
+    {
+        {
+            SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::readLine: entering mutex" );
+            ::osl::MutexGuard aQueueGuard( mMutex );
+            SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::readLine: entered mutex" );
+
+#ifdef SAL_LOG_INFO
+            // We should have in the sal logging some standard way to
+            // output char buffers with non-printables escaped.
+            std::ostringstream s;
+            if (mBuffer.size() > 0)
+            {
+                for (unsigned char *p = reinterpret_cast<unsigned char *>(mBuffer.data()); p != reinterpret_cast<unsigned char *>(mBuffer.data()) + mBuffer.size(); p++)
+                {
+                    if (*p == '\n')
+                        s << "\\n";
+                    else if (*p < ' ' || *p >= 0x7F)
+                        s << "\\0x" << std::hex << std::setw(2) << std::setfill('0') << static_cast<int>(*p) << std::setfill(' ') << std::setw(1) << std::dec;
+                    else
+                        s << *p;
+                }
+            }
+            SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::readLine mBuffer:  \"" << s.str() << "\"" );
+#endif
+
+            // got enough bytes to return a line?
+            std::vector<char>::iterator aIt;
+            if ( (aIt = find( mBuffer.begin(), mBuffer.end(), '\n' ))
+                 != mBuffer.end() )
+            {
+                sal_uInt64 aLocation = aIt - mBuffer.begin();
+
+                aLine = OString( &(*mBuffer.begin()), aLocation );
+
+                mBuffer.erase( mBuffer.begin(), aIt + 1 ); // Also delete the empty line
+
+                // yeps
+                SAL_INFO( "sdremote.bluetooth", "  returning, got \"" << OStringToOUString( aLine, RTL_TEXTENCODING_UTF8 ) << "\"" );
+                return aLine.getLength() + 1;
+            }
+
+            // nope - wait some more (after releasing the mutex)
+            SAL_INFO( "sdremote.bluetooth", "  resetting mHaveBytes" );
+            mHaveBytes.reset();
+            SAL_INFO( "sdremote.bluetooth", "  leaving mutex" );
+        }
+
+        SAL_INFO( "sdremote.bluetooth", "  waiting for mHaveBytes" );
+        mHaveBytes.wait();
+        SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::readLine: got mHaveBytes" );
+    }
+}
+
+sal_Int32 OSXBluetoothWrapper::write( const void* pBuffer, sal_uInt32 n )
+{
+    SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::write(" << pBuffer << ", " << n << ") mpChannel=" << mpChannel );
+
+    char const * ptr = static_cast<char const *>(pBuffer);
+    sal_uInt32 nBytesWritten = 0;
+
+    if (mpChannel == nil)
+        return 0;
+
+    while( nBytesWritten < n )
+    {
+        int toWrite = n - nBytesWritten;
+        toWrite = toWrite <= mnMTU ? toWrite : mnMTU;
+        if ( [mpChannel writeSync:const_cast<char *>(ptr) length:toWrite] != kIOReturnSuccess )
+        {
+            SAL_INFO( "sdremote.bluetooth", "  [mpChannel writeSync:" << static_cast<void const *>(ptr) << " length:" << toWrite << "] returned error, total written " << nBytesWritten );
+            return nBytesWritten;
+        }
+        ptr += toWrite;
+        nBytesWritten += toWrite;
+    }
+    SAL_INFO( "sdremote.bluetooth", "  total written " << nBytesWritten );
+    return nBytesWritten;
+}
+
+void OSXBluetoothWrapper::appendData(void* pBuffer, size_t len)
+{
+    SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::appendData(" << pBuffer << ", " << len << ")" );
+
+    if( len )
+    {
+        SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::appendData: entering mutex" );
+        ::osl::MutexGuard aQueueGuard( mMutex );
+        SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::appendData: entered mutex" );
+        mBuffer.insert(mBuffer.begin()+mBuffer.size(),
+                       static_cast<char*>(pBuffer), static_cast<char *>(pBuffer)+len);
+        SAL_INFO( "sdremote.bluetooth", "  setting mHaveBytes" );
+        mHaveBytes.set();
+        SAL_INFO( "sdremote.bluetooth", "  leaving mutex" );
+    }
+}
+
+void OSXBluetoothWrapper::channelClosed()
+{
+    SAL_INFO( "sdremote.bluetooth", "OSXBluetoothWrapper::channelClosed()" );
+
+    mpChannel = nil;
+}
+
+void incomingCallback( void *userRefCon,
+                       IOBluetoothUserNotificationRef,
+                       IOBluetoothObjectRef objectRef )
+{
+    SAL_INFO( "sdremote.bluetooth", "incomingCallback()" );
+
+    BluetoothServer* pServer = static_cast<BluetoothServer*>(userRefCon);
+
+    IOBluetoothRFCOMMChannel* channel = [IOBluetoothRFCOMMChannel withRFCOMMChannelRef:reinterpret_cast<IOBluetoothRFCOMMChannelRef>(objectRef)];
+
+    OSXBluetoothWrapper* socket = new OSXBluetoothWrapper( channel);
+    Communicator* pCommunicator = new Communicator( std::unique_ptr<IBluetoothSocket>(socket) );
+    pServer->addCommunicator( pCommunicator );
+
+    ChannelDelegate* delegate = [[ChannelDelegate alloc] initWithCommunicatorAndSocket: pCommunicator socket: socket];
+    [channel setDelegate: delegate];
+    [delegate retain];
+
+    pCommunicator->launch();
+}
+
+void BluetoothServer::addCommunicator( Communicator* pCommunicator )
+{
+    ::osl::MutexGuard aGuard(RemoteServer::sDataMutex);
+    mpCommunicators->push_back( pCommunicator );
+}
+
+#endif // MACOSX
+
+#ifdef LINUX_BLUETOOTH
+
+extern "C" {
+    static gboolean ensureDiscoverable_cb(gpointer)
+    {
+        BluetoothServer::doEnsureDiscoverable();
+        return FALSE; // remove source
+    }
+    static gboolean restoreDiscoverable_cb(gpointer)
+    {
+        BluetoothServer::doRestoreDiscoverable();
+        return FALSE; // remove source
+    }
+}
+
+/*
+ * Bluez 4 uses custom methods for setting properties, whereas Bluez 5+
+ * implements properties using the generic "org.freedesktop.DBus.Properties"
+ * interface -- hence we have a specific Bluez 4 function to deal with the
+ * old style of reading properties.
+ */
+static bool
+getBluez4BooleanProperty( DBusConnection *pConnection, DBusObject *pAdapter,
+                    const char *pPropertyName, bool *pBoolean )
+{
+    *pBoolean = false;
+
+    if( !pAdapter )
+        return false;
+
+    DBusMessage *pMsg;
+    pMsg = sendUnrefAndWaitForReply( pConnection,
+                                     pAdapter->getMethodCall( "GetProperties" ) );
+
+    DBusMessageIter it;
+    if( !pMsg || !dbus_message_iter_init( pMsg, &it ) )
+    {
+        SAL_WARN( "sdremote.bluetooth", "no valid reply / timeout" );
+        return false;
+    }
+
+    if( DBUS_TYPE_ARRAY != dbus_message_iter_get_arg_type( &it ) )
+    {
+        SAL_WARN( "sdremote.bluetooth", "no valid reply / timeout" );
+        return false;
+    }
+
+    DBusMessageIter arrayIt;
+    dbus_message_iter_recurse( &it, &arrayIt );
+
+    while( dbus_message_iter_get_arg_type( &arrayIt ) == DBUS_TYPE_DICT_ENTRY )
+    {
+        DBusMessageIter dictIt;
+        dbus_message_iter_recurse( &arrayIt, &dictIt );
+
+        const char *pName = nullptr;
+        if( dbus_message_iter_get_arg_type( &dictIt ) == DBUS_TYPE_STRING )
+        {
+            dbus_message_iter_get_basic( &dictIt, &pName );
+            if( pName != nullptr && !strcmp( pName, pPropertyName ) )
+            {
+                SAL_INFO( "sdremote.bluetooth", "hit " << pPropertyName << " property" );
+                dbus_message_iter_next( &dictIt );
+                dbus_bool_t bBool = false;
+
+                if( dbus_message_iter_get_arg_type( &dictIt ) == DBUS_TYPE_VARIANT )
+                {
+                    DBusMessageIter variantIt;
+                    dbus_message_iter_recurse( &dictIt, &variantIt );
+
+                    if( dbus_message_iter_get_arg_type( &variantIt ) == DBUS_TYPE_BOOLEAN )
+                    {
+                        dbus_message_iter_get_basic( &variantIt, &bBool );
+                        SAL_INFO( "sdremote.bluetooth", "" << pPropertyName << " is " << bBool );
+                        *pBoolean = bBool;
+                        return true;
+                    }
+                    else
+                        SAL_WARN( "sdremote.bluetooth", "" << pPropertyName << " type " <<
+                                  dbus_message_iter_get_arg_type( &variantIt ) );
+                }
+                else
+                    SAL_WARN( "sdremote.bluetooth", "variant type ? " <<
+                              dbus_message_iter_get_arg_type( &dictIt ) );
+            }
+            else
+            {
+                const char *pStr = pName ? pName : "<null>";
+                SAL_INFO( "sdremote.bluetooth", "property '" << pStr << "'" );
+            }
+        }
+        else
+            SAL_WARN( "sdremote.bluetooth", "unexpected property key type "
+                      << dbus_message_iter_get_arg_type( &dictIt ) );
+        dbus_message_iter_next( &arrayIt );
+    }
+    dbus_message_unref( pMsg );
+
+    return false;
+}
+
+/*
+ * This gets an org.freedesktop.DBus.Properties boolean
+ * (as opposed to the old Bluez 4 custom properties methods as visible above).
+ */
+static bool
+getDBusBooleanProperty( DBusConnection *pConnection, DBusObject *pAdapter,
+                        const char *pPropertyName, bool *pBoolean )
+{
+    assert( pAdapter );
+
+    *pBoolean = false;
+    bool bRet = false;
+
+    std::unique_ptr< DBusObject > pProperties (
+            pAdapter->cloneForInterface( "org.freedesktop.DBus.Properties" ) );
+
+    DBusMessage *pMsg = pProperties->getMethodCall( "Get" );
+
+    DBusMessageIter itIn;
+    dbus_message_iter_init_append( pMsg, &itIn );
+    const char* pInterface = "org.bluez.Adapter1";
+    dbus_message_iter_append_basic( &itIn, DBUS_TYPE_STRING, &pInterface );
+    dbus_message_iter_append_basic( &itIn, DBUS_TYPE_STRING, &pPropertyName );
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    DBusMessageIter it;
+    if( !pMsg || !dbus_message_iter_init( pMsg, &it ) )
+    {
+        SAL_WARN( "sdremote.bluetooth", "no valid reply / timeout" );
+        return false;
+    }
+
+    if( DBUS_TYPE_VARIANT != dbus_message_iter_get_arg_type( &it ) )
+    {
+        SAL_WARN( "sdremote.bluetooth", "invalid return type" );
+    }
+    else
+    {
+        DBusMessageIter variantIt;
+        dbus_message_iter_recurse( &it, &variantIt );
+
+        if( dbus_message_iter_get_arg_type( &variantIt ) == DBUS_TYPE_BOOLEAN )
+        {
+            dbus_bool_t bBool = false;
+            dbus_message_iter_get_basic( &variantIt, &bBool );
+            SAL_INFO( "sdremote.bluetooth", "" << pPropertyName << " is " << bBool );
+            *pBoolean = bBool;
+            bRet = true;
+        }
+        else
+        {
+            SAL_WARN( "sdremote.bluetooth", "" << pPropertyName << " type " <<
+                        dbus_message_iter_get_arg_type( &variantIt ) );
+        }
+
+        const char* pError = dbus_message_get_error_name( pMsg );
+        if ( pError )
+        {
+            SAL_WARN( "sdremote.bluetooth",
+                      "Get failed for " << pPropertyName << " on " <<
+                      pAdapter->maPath  << " with error: " << pError );
+        }
+    }
+    dbus_message_unref( pMsg );
+
+    return bRet;
+}
+
+static void
+setDBusBooleanProperty( DBusConnection *pConnection, DBusObject *pAdapter,
+                        const char *pPropertyName, bool bBoolean )
+{
+    assert( pAdapter );
+
+    std::unique_ptr< DBusObject > pProperties(
+            pAdapter->cloneForInterface( "org.freedesktop.DBus.Properties" ) );
+
+    DBusMessage *pMsg = pProperties->getMethodCall( "Set" );
+
+    DBusMessageIter itIn;
+    dbus_message_iter_init_append( pMsg, &itIn );
+    const char* pInterface = "org.bluez.Adapter1";
+    dbus_message_iter_append_basic( &itIn, DBUS_TYPE_STRING, &pInterface );
+    dbus_message_iter_append_basic( &itIn, DBUS_TYPE_STRING, &pPropertyName );
+
+    {
+        DBusMessageIter varIt;
+        dbus_message_iter_open_container( &itIn, DBUS_TYPE_VARIANT,
+                                        DBUS_TYPE_BOOLEAN_AS_STRING, &varIt );
+        dbus_bool_t bDBusBoolean = bBoolean;
+        dbus_message_iter_append_basic( &varIt, DBUS_TYPE_BOOLEAN, &bDBusBoolean );
+        dbus_message_iter_close_container( &itIn, &varIt );
+    }
+
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    if( !pMsg )
+    {
+        SAL_WARN( "sdremote.bluetooth", "no valid reply / timeout" );
+    }
+    else
+    {
+        const char* pError = dbus_message_get_error_name( pMsg );
+        if ( pError )
+        {
+            SAL_WARN( "sdremote.bluetooth",
+                      "Set failed for " << pPropertyName << " on " <<
+                      pAdapter->maPath << " with error: " << pError );
+        }
+        dbus_message_unref( pMsg );
+    }
+}
+
+static bool
+getDiscoverable( DBusConnection *pConnection, DBusObject *pAdapter )
+{
+    if (pAdapter->maInterface == "org.bluez.Adapter") // Bluez 4
+    {
+        bool bDiscoverable;
+        if( getBluez4BooleanProperty(pConnection, pAdapter, "Discoverable", &bDiscoverable ) )
+            return bDiscoverable;
+    }
+    else if (pAdapter->maInterface == "org.bluez.Adapter1") // Bluez 5
+    {
+        bool bDiscoverable;
+        if ( getDBusBooleanProperty(pConnection, pAdapter, "Discoverable", &bDiscoverable ) )
+            return bDiscoverable;
+    }
+    return false;
+}
+
+static void
+setDiscoverable( DBusConnection *pConnection, DBusObject *pAdapter, bool bDiscoverable )
+{
+    SAL_INFO( "sdremote.bluetooth", "setDiscoverable to " << bDiscoverable );
+
+    if (pAdapter->maInterface == "org.bluez.Adapter") // Bluez 4
+    {
+        bool bPowered = false;
+        if( !getBluez4BooleanProperty( pConnection, pAdapter, "Powered", &bPowered ) || !bPowered )
+            return; // nothing to do
+
+        DBusMessage *pMsg;
+        DBusMessageIter it, varIt;
+
+        // set timeout to zero
+        pMsg = pAdapter->getMethodCall( "SetProperty" );
+        dbus_message_iter_init_append( pMsg, &it );
+        const char *pTimeoutStr = "DiscoverableTimeout";
+        dbus_message_iter_append_basic( &it, DBUS_TYPE_STRING, &pTimeoutStr );
+        dbus_message_iter_open_container( &it, DBUS_TYPE_VARIANT,
+                                        DBUS_TYPE_UINT32_AS_STRING, &varIt );
+        dbus_uint32_t nTimeout = 0;
+        dbus_message_iter_append_basic( &varIt, DBUS_TYPE_UINT32, &nTimeout );
+        dbus_message_iter_close_container( &it, &varIt );
+        dbus_connection_send( pConnection, pMsg, nullptr ); // async send - why not ?
+        dbus_message_unref( pMsg );
+
+        // set discoverable value
+        pMsg = pAdapter->getMethodCall( "SetProperty" );
+        dbus_message_iter_init_append( pMsg, &it );
+        const char *pDiscoverableStr = "Discoverable";
+        dbus_message_iter_append_basic( &it, DBUS_TYPE_STRING, &pDiscoverableStr );
+        dbus_message_iter_open_container( &it, DBUS_TYPE_VARIANT,
+                                        DBUS_TYPE_BOOLEAN_AS_STRING, &varIt );
+        dbus_bool_t bValue = bDiscoverable;
+        dbus_message_iter_append_basic( &varIt, DBUS_TYPE_BOOLEAN, &bValue );
+        dbus_message_iter_close_container( &it, &varIt ); // async send - why not ?
+        dbus_connection_send( pConnection, pMsg, nullptr );
+        dbus_message_unref( pMsg );
+    }
+    else if  (pAdapter->maInterface == "org.bluez.Adapter1") // Bluez 5
+    {
+        setDBusBooleanProperty(pConnection, pAdapter, "Discoverable", bDiscoverable );
+    }
+}
+
+static std::unique_ptr<DBusObject>
+registerWithDefaultAdapter( DBusConnection *pConnection )
+{
+    std::unique_ptr<DBusObject> pService(bluez4GetDefaultService( pConnection ));
+    if( pService )
+    {
+        if( !bluez4RegisterServiceRecord( pConnection, pService.get(),
+                                     bluetooth_service_record ) )
+        {
+            return nullptr;
+        }
+    }
+
+    return pService;
+}
+
+static void ProfileUnregisterFunction
+(DBusConnection *, void *)
+{
+    // We specifically don't need to do anything here.
+}
+
+static DBusHandlerResult ProfileMessageFunction
+(DBusConnection *pConnection, DBusMessage *pMessage, void *user_data)
+{
+    SAL_INFO("sdremote.bluetooth", "ProfileMessageFunction||" << dbus_message_get_interface(pMessage) << "||" <<  dbus_message_get_member(pMessage));
+
+    if (dbus_message_get_interface(pMessage) == std::string_view("org.bluez.Profile1"))
+    {
+        if (dbus_message_get_member(pMessage) == std::string_view("Release"))
+        {
+            return DBUS_HANDLER_RESULT_HANDLED;
+        }
+        else if (dbus_message_get_member(pMessage) == std::string_view("NewConnection"))
+        {
+            if (!dbus_message_has_signature(pMessage, "oha{sv}"))
+            {
+                SAL_WARN("sdremote.bluetooth", "wrong signature for NewConnection");
+            }
+
+            DBusMessageIter it;
+            if (!dbus_message_iter_init(pMessage, &it))
+                SAL_WARN( "sdremote.bluetooth", "error init dbus" );
+            else
+            {
+                char* pPath;
+                dbus_message_iter_get_basic(&it, &pPath);
+                SAL_INFO("sdremote.bluetooth", "Adapter path:" << pPath);
+
+                if (!dbus_message_iter_next(&it))
+                    SAL_WARN("sdremote.bluetooth", "not enough parameters passed");
+
+                // DBUS_TYPE_UNIX_FD == 'h' -- doesn't exist in older versions
+                // of dbus (< 1.3?) hence defined manually for now
+                if ('h' == dbus_message_iter_get_arg_type(&it))
+                {
+
+                    int nDescriptor;
+                    dbus_message_iter_get_basic(&it, &nDescriptor);
+                    std::vector<Communicator*>* pCommunicators = static_cast<std::vector<Communicator*>*>(user_data);
+
+                    // Bluez gives us non-blocking sockets, but our code relies
+                    // on blocking behaviour.
+                    (void)fcntl(nDescriptor, F_SETFL, fcntl(nDescriptor, F_GETFL) & ~O_NONBLOCK);
+
+                    SAL_INFO( "sdremote.bluetooth", "connection accepted " << nDescriptor);
+                    Communicator* pCommunicator = new Communicator( std::make_unique<BufferedStreamSocket>( nDescriptor ) );
+                    {
+                        ::osl::MutexGuard aGuard(RemoteServer::sDataMutex);
+                        pCommunicators->push_back( pCommunicator );
+                    }
+                    pCommunicator->launch();
+                }
+
+                // For some reason an (empty?) reply is expected.
+                DBusMessage* pRet = dbus_message_new_method_return(pMessage);
+                dbus_connection_send(pConnection, pRet, nullptr);
+                dbus_message_unref(pRet);
+
+                // We could read the remote profile version and features here
+                // (i.e. they are provided as part of the DBusMessage),
+                // however for us they are irrelevant (as our protocol handles
+                // equivalent functionality independently of whether we're on
+                // bluetooth or normal network connection).
+                return DBUS_HANDLER_RESULT_HANDLED;
+            }
+        }
+        else if (dbus_message_get_member(pMessage) == std::string_view("RequestDisconnection"))
+        {
+            return DBUS_HANDLER_RESULT_HANDLED;
+        }
+    }
+    SAL_WARN("sdremote.bluetooth", "Couldn't handle message correctly.");
+    return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
+
+}
+
+static void
+setupBluez5Profile1(DBusConnection* pConnection, std::vector<Communicator*>* pCommunicators)
+{
+    bool bErr;
+
+    SAL_INFO("sdremote.bluetooth", "Attempting to register our org.bluez.Profile1");
+    static DBusObjectPathVTable aVTable;
+    aVTable.unregister_function = ProfileUnregisterFunction;
+    aVTable.message_function = ProfileMessageFunction;
+
+    // dbus_connection_try_register_object_path could be used but only exists for
+    // dbus >= 1.2 -- we really shouldn't be trying this twice in any case.
+    // (dbus_connection_try_register_object_path also returns an error with more
+    // information which could be useful for debugging purposes.)
+    bErr = !dbus_connection_register_object_path(pConnection, "/org/libreoffice/bluez/profile1", &aVTable, pCommunicators);
+
+    if (bErr)
+    {
+        SAL_WARN("sdremote.bluetooth", "Failed to register Bluez 5 Profile1 callback, bluetooth won't work.");
+    }
+
+    dbus_connection_flush( pConnection );
+}
+
+static void
+unregisterBluez5Profile(DBusConnection* pConnection)
+{
+    DBusMessage* pMsg = dbus_message_new_method_call("org.bluez", "/org/bluez",
+                                        "org.bluez.ProfileManager1", "UnregisterProfile");
+    DBusMessageIter it;
+    dbus_message_iter_init_append(pMsg, &it);
+
+    const char *pPath = "/org/libreoffice/bluez/profile1";
+    dbus_message_iter_append_basic(&it, DBUS_TYPE_OBJECT_PATH, &pPath);
+
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    if (pMsg)
+        dbus_message_unref(pMsg);
+
+    dbus_connection_unregister_object_path( pConnection, "/org/libreoffice/bluez/profile1");
+
+    dbus_connection_flush(pConnection);
+}
+
+static bool
+registerBluez5Profile(DBusConnection* pConnection, std::vector<Communicator*>* pCommunicators)
+{
+    setupBluez5Profile1(pConnection, pCommunicators);
+
+    DBusMessage *pMsg;
+    DBusMessageIter it;
+
+    pMsg = dbus_message_new_method_call("org.bluez", "/org/bluez",
+                                        "org.bluez.ProfileManager1", "RegisterProfile");
+    dbus_message_iter_init_append(pMsg, &it);
+
+    const char *pPath = "/org/libreoffice/bluez/profile1";
+    dbus_message_iter_append_basic(&it, DBUS_TYPE_OBJECT_PATH, &pPath);
+    const char *pUUID =  "spp"; // Bluez translates this to 0x1101 for spp
+    dbus_message_iter_append_basic(&it, DBUS_TYPE_STRING, &pUUID);
+
+    DBusMessageIter aOptionsIter;
+    dbus_message_iter_open_container(&it, DBUS_TYPE_ARRAY, "{sv}", &aOptionsIter);
+
+    DBusMessageIter aEntry;
+
+    {
+        dbus_message_iter_open_container(&aOptionsIter, DBUS_TYPE_DICT_ENTRY, nullptr, &aEntry);
+
+        const char *pString = "Name";
+        dbus_message_iter_append_basic(&aEntry, DBUS_TYPE_STRING, &pString);
+
+        const char *pValue = "LibreOffice Impress Remote";
+        DBusMessageIter aValue;
+        dbus_message_iter_open_container(&aEntry, DBUS_TYPE_VARIANT, "s", &aValue);
+        dbus_message_iter_append_basic(&aValue, DBUS_TYPE_STRING, &pValue);
+        dbus_message_iter_close_container(&aEntry, &aValue);
+        dbus_message_iter_close_container(&aOptionsIter, &aEntry);
+    }
+
+    dbus_message_iter_close_container(&it, &aOptionsIter);
+
+    // Other properties that we could set (but don't, since they appear
+    // to be useless for us):
+    // "Service": "0x1101" (not needed, but we used to have it in the manually defined profile).
+    // "Role": setting this to "server" breaks things, although we think we're a server?
+    // "Channel": seems to be dealt with automatically (but we used to use 5 in the manual profile).
+
+    bool bSuccess = true;
+
+    pMsg = sendUnrefAndWaitForReply( pConnection, pMsg );
+
+    DBusError aError;
+    dbus_error_init(&aError);
+    if (pMsg && dbus_set_error_from_message( &aError, pMsg ))
+    {
+        bSuccess = false;
+        SAL_WARN("sdremote.bluetooth",
+                 "Failed to register our Profile1 with bluez ProfileManager "
+                 << (aError.message ? aError.message : "<null>"));
+    }
+
+    dbus_error_free(&aError);
+    if (pMsg)
+        dbus_message_unref(pMsg);
+
+    dbus_connection_flush(pConnection);
+
+    return bSuccess;
+}
+
+#endif // LINUX_BLUETOOTH
+
+BluetoothServer::BluetoothServer( std::vector<Communicator*>* pCommunicators )
+  : meWasDiscoverable( UNKNOWN ),
+    mpCommunicators( pCommunicators )
+{
+#ifdef LINUX_BLUETOOTH
+    // D-Bus requires the following in order to be thread-safe (and we
+    // potentially access D-Bus from different threads in different places of
+    // the code base):
+    if (!dbus_threads_init_default()) {
+        throw std::bad_alloc();
+    }
+
+    mpImpl.reset(new BluetoothServer::Impl());
+#endif
+}
+
+BluetoothServer::~BluetoothServer()
+{
+}
+
+void BluetoothServer::ensureDiscoverable()
+{
+#ifdef LINUX_BLUETOOTH
+    // Push it all across into our mainloop
+    if( !spServer )
+        return;
+    GSource *pIdle = g_idle_source_new();
+    g_source_set_callback( pIdle, ensureDiscoverable_cb, nullptr, nullptr );
+    g_source_set_priority( pIdle, G_PRIORITY_DEFAULT );
+    g_source_attach( pIdle, spServer->mpImpl->mpContext );
+    g_source_unref( pIdle );
+#endif
+}
+
+void BluetoothServer::restoreDiscoverable()
+{
+#ifdef LINUX_BLUETOOTH
+    // Push it all across into our mainloop
+    if( !spServer )
+        return;
+    GSource *pIdle = g_idle_source_new();
+    g_source_set_callback( pIdle, restoreDiscoverable_cb, nullptr, nullptr );
+    g_source_set_priority( pIdle, G_PRIORITY_DEFAULT_IDLE );
+    g_source_attach( pIdle, spServer->mpImpl->mpContext );
+    g_source_unref( pIdle );
+#endif
+}
+
+void BluetoothServer::doEnsureDiscoverable()
+{
+#ifdef LINUX_BLUETOOTH
+    if (!spServer->mpImpl->mpConnection ||
+        spServer->meWasDiscoverable != UNKNOWN )
+        return;
+
+    // Find out if we are discoverable already ...
+    std::unique_ptr<DBusObject> pAdapter = spServer->mpImpl->getAdapter();
+    if( !pAdapter )
+        return;
+
+    bool bDiscoverable = getDiscoverable(spServer->mpImpl->mpConnection, pAdapter.get() );
+
+    spServer->meWasDiscoverable = bDiscoverable ? DISCOVERABLE : NOT_DISCOVERABLE;
+    if( !bDiscoverable )
+        setDiscoverable( spServer->mpImpl->mpConnection, pAdapter.get(), true );
+#endif
+}
+
+void BluetoothServer::doRestoreDiscoverable()
+{
+    if( spServer->meWasDiscoverable == NOT_DISCOVERABLE )
+    {
+#ifdef LINUX_BLUETOOTH
+        std::unique_ptr<DBusObject> pAdapter = spServer->mpImpl->getAdapter();
+        if( !pAdapter )
+            return;
+        setDiscoverable( spServer->mpImpl->mpConnection, pAdapter.get(), false );
+#endif
+    }
+    spServer->meWasDiscoverable = UNKNOWN;
+}
+
+// We have to have all our clients shut otherwise we can't
+// re-bind to the same port number it appears.
+void BluetoothServer::cleanupCommunicators()
+{
+    ::osl::MutexGuard aGuard(RemoteServer::sDataMutex);
+    for (auto& rpCommunicator : *mpCommunicators)
+        rpCommunicator->forceClose();
+    // the hope is that all the threads then terminate cleanly and
+    // clean themselves up.
+}
+
+void SAL_CALL BluetoothServer::run()
+{
+    SAL_INFO( "sdremote.bluetooth", "BluetoothServer::run called" );
+    osl::Thread::setName("BluetoothServer");
+#ifdef LINUX_BLUETOOTH
+    DBusConnection *pConnection = dbusConnectToNameOnBus();
+    if( !pConnection )
+        return;
+
+    // For either implementation we need to poll the dbus fd
+    int fd = -1;
+    GPollFD aDBusFD;
+    if( dbus_connection_get_unix_fd( pConnection, &fd ) && fd >= 0 )
+    {
+        aDBusFD.fd = fd;
+        aDBusFD.events = G_IO_IN | G_IO_PRI;
+        g_main_context_add_poll( mpImpl->mpContext, &aDBusFD, G_PRIORITY_DEFAULT );
+    }
+    else
+        SAL_WARN( "sdremote.bluetooth", "failed to poll for incoming dbus signals" );
+
+    if (isBluez5Available(pConnection))
+    {
+        SAL_INFO("sdremote.bluetooth", "Using Bluez 5");
+        registerBluez5Profile(pConnection, mpCommunicators);
+        mpImpl->mpConnection = pConnection;
+        mpImpl->maBluezVersion = Impl::BluezVersion::BLUEZ5;
+
+        // We don't need to listen to adapter changes anymore -- profile
+        // registration is done globally for the entirety of bluez, so we only
+        // need adapters when setting discoverability, which can be done
+        // dynamically without the need to listen for changes.
+
+        // TODO: exit on SD deinit
+        // Probably best to do that in SdModule::~SdModule?
+        while (true)
+        {
+            aDBusFD.revents = 0;
+            g_main_context_iteration( mpImpl->mpContext, true );
+            if( aDBusFD.revents )
+            {
+                dbus_connection_read_write( pConnection, 0 );
+                while (DBUS_DISPATCH_DATA_REMAINS == dbus_connection_get_dispatch_status( pConnection ))
+                    dbus_connection_dispatch( pConnection );
+            }
+            if ((false)) break;
+                // silence Clang -Wunreachable-code after loop (TODO: proper
+                // fix?)
+        }
+        unregisterBluez5Profile( pConnection );
+        g_main_context_unref( mpImpl->mpContext );
+        mpImpl->mpConnection = nullptr;
+        mpImpl->mpContext = nullptr;
+        return;
+    }
+
+    // Otherwise we could be on Bluez 4 and continue as usual.
+    mpImpl->maBluezVersion = Impl::BluezVersion::BLUEZ4;
+
+    // Try to setup the default adapter, otherwise wait for add/remove signal
+    mpImpl->mpService = registerWithDefaultAdapter( pConnection );
+    // listen for connection state and power changes - we need to close
+    // and re-create our socket code on suspend / resume, enable/disable
+    DBusError aError;
+    dbus_error_init( &aError );
+    dbus_bus_add_match( pConnection, "type='signal',interface='org.bluez.Manager'", &aError );
+    dbus_connection_flush( pConnection );
+
+    // Try to setup the default adapter, otherwise wait for add/remove signal
+    mpImpl->mpService = registerWithDefaultAdapter( pConnection );
+
+    // poll on our bluetooth socket - if we can.
+    GPollFD aSocketFD;
+    if( mpImpl->mpService )
+        bluezCreateAttachListeningSocket( mpImpl->mpContext, &aSocketFD );
+
+    mpImpl->mpConnection = pConnection;
+
+    while( true )
+    {
+        aDBusFD.revents = 0;
+        aSocketFD.revents = 0;
+        g_main_context_iteration( mpImpl->mpContext, true );
+
+        SAL_INFO( "sdremote.bluetooth", "main-loop spin "
+                  << aDBusFD.revents << " " << aSocketFD.revents );
+        if( aDBusFD.revents )
+        {
+            dbus_connection_read_write( pConnection, 0 );
+            DBusMessage *pMsg = dbus_connection_pop_message( pConnection );
+            if( pMsg )
+            {
+                if( dbus_message_is_signal( pMsg, "org.bluez.Manager", "AdapterRemoved" ) )
+                {
+                    SAL_WARN( "sdremote.bluetooth", "lost adapter - cleaning up sockets" );
+                    bluezDetachCloseSocket( mpImpl->mpContext, &aSocketFD );
+                    cleanupCommunicators();
+                }
+                else if( dbus_message_is_signal( pMsg, "org.bluez.Manager", "AdapterAdded" ) ||
+                         dbus_message_is_signal( pMsg, "org.bluez.Manager", "DefaultAdapterChanged" ) )
+                {
+                    SAL_WARN( "sdremote.bluetooth", "gained adapter - re-generating sockets" );
+                    bluezDetachCloseSocket( mpImpl->mpContext, &aSocketFD );
+                    cleanupCommunicators();
+                    mpImpl->mpService = registerWithDefaultAdapter( pConnection );
+                    if( mpImpl->mpService )
+                        bluezCreateAttachListeningSocket( mpImpl->mpContext, &aSocketFD );
+                }
+                else
+                    SAL_INFO( "sdremote.bluetooth", "unknown incoming dbus message, "
+                                 " type: " << dbus_message_get_type( pMsg )
+                              << " path: '" << dbus_message_get_path( pMsg )
+                              << "' interface: '" << dbus_message_get_interface( pMsg )
+                              << "' member: '" << dbus_message_get_member( pMsg ) );
+            }
+            dbus_message_unref( pMsg );
+        }
+
+        if( aSocketFD.revents )
+        {
+            sockaddr_rc aRemoteAddr;
+            socklen_t aRemoteAddrLen = sizeof(aRemoteAddr);
+
+            SAL_INFO( "sdremote.bluetooth", "performing accept" );
+            int nClient = accept( aSocketFD.fd, reinterpret_cast<sockaddr*>(&aRemoteAddr), &aRemoteAddrLen);
+            if ( nClient < 0 && errno != EAGAIN )
+            {
+                SAL_WARN( "sdremote.bluetooth", "accept failed with errno " << errno );
+            } else {
+                SAL_INFO( "sdremote.bluetooth", "connection accepted " << nClient );
+                Communicator* pCommunicator = new Communicator( std::make_unique<BufferedStreamSocket>( nClient ) );
+                {
+                    ::osl::MutexGuard aGuard(RemoteServer::sDataMutex);
+                    mpCommunicators->push_back( pCommunicator );
+                }
+                pCommunicator->launch();
+            }
+        }
+        if ((false)) break;
+            // silence Clang -Wunreachable-code after loop (TODO: proper fix?)
+    }
+
+    unregisterBluez5Profile( pConnection );
+    g_main_context_unref( mpImpl->mpContext );
+    mpImpl->mpConnection = nullptr;
+    mpImpl->mpContext = nullptr;
+
+#elif defined(_WIN32)
+    WORD wVersionRequested;
+    WSADATA wsaData;
+
+    wVersionRequested = MAKEWORD(2, 2);
+
+    if ( WSAStartup(wVersionRequested, &wsaData) )
+    {
+        return; // winsock dll couldn't be loaded
+    }
+
+    int aSocket = socket( AF_BTH, SOCK_STREAM, BTHPROTO_RFCOMM );
+    if ( !aSocket )
+    {
+        WSACleanup();
+        return;
+    }
+    SOCKADDR_BTH aAddr;
+    aAddr.addressFamily = AF_BTH;
+    aAddr.btAddr = 0;
+    aAddr.serviceClassId = GUID_NULL;
+    aAddr.port = BT_PORT_ANY; // Select any free socket.
+    if ( bind( aSocket, reinterpret_cast<SOCKADDR*>(&aAddr), sizeof(aAddr) ) == SOCKET_ERROR )
+    {
+        closesocket( aSocket );
+        WSACleanup();
+        return;
+    }
+
+    SOCKADDR_BTH aName;
+    int aNameSize = sizeof(aName);
+    getsockname( aSocket, reinterpret_cast<SOCKADDR*>(&aName), &aNameSize ); // Retrieve the local address and port
+
+    CSADDR_INFO aAddrInfo = {};
+    aAddrInfo.LocalAddr.lpSockaddr = reinterpret_cast<SOCKADDR*>(&aName);
+    aAddrInfo.LocalAddr.iSockaddrLength = sizeof( SOCKADDR_BTH );
+    aAddrInfo.iSocketType = SOCK_STREAM;
+    aAddrInfo.iProtocol = BTHPROTO_RFCOMM;
+
+    // To be used for setting a custom UUID once available.
+//    GUID uuid;
+//    uuid.Data1 = 0x00001101;
+//  memset( &uuid, 0x1000 + UUID*2^96, sizeof( GUID ) );
+//    uuid.Data2 = 0;
+//    uuid.Data3 = 0x1000;
+//    ULONGLONG aData4 = 0x800000805F9B34FB;
+//    memcpy( uuid.Data4, &aData4, sizeof(uuid.Data4) );
+
+    WSAQUERYSETW aRecord = {};
+    aRecord.dwSize = sizeof(aRecord);
+    aRecord.lpszServiceInstanceName = const_cast<wchar_t *>(
+        L"LibreOffice Impress Remote Control");
+    aRecord.lpszComment = const_cast<wchar_t *>(
+        L"Remote control of presentations over bluetooth.");
+    aRecord.lpServiceClassId = const_cast<LPGUID>(&SerialPortServiceClass_UUID);
+    aRecord.dwNameSpace = NS_BTH;
+    aRecord.dwNumberOfCsAddrs = 1;
+    aRecord.lpcsaBuffer = &aAddrInfo;
+    if (WSASetServiceW( &aRecord, RNRSERVICE_REGISTER, 0 ) == SOCKET_ERROR)
+    {
+        closesocket( aSocket );
+        WSACleanup();
+        return;
+    }
+
+    if ( listen( aSocket, 1 ) == SOCKET_ERROR )
+    {
+        closesocket( aSocket );
+        WSACleanup();
+        return;
+    }
+
+    SOCKADDR_BTH aRemoteAddr;
+    int aRemoteAddrLen = sizeof(aRemoteAddr);
+    while ( true )
+    {
+        SOCKET socket;
+        if ( (socket = accept(aSocket, reinterpret_cast<sockaddr*>(&aRemoteAddr), &aRemoteAddrLen)) == INVALID_SOCKET )
+        {
+            closesocket( aSocket );
+            WSACleanup();
+            return;
+        } else {
+            Communicator* pCommunicator = new Communicator( std::make_unique<BufferedStreamSocket>( socket) );
+            {
+                ::osl::MutexGuard aGuard(RemoteServer::sDataMutex);
+                mpCommunicators->push_back( pCommunicator );
+            }
+            pCommunicator->launch();
+        }
+    }
+
+#elif defined(MACOSX)
+    // Build up dictionary at run-time instead of bothering with a
+    // .plist file, using the Objective-C API
+
+    // Compare to BluetoothServiceRecord.hxx
+
+    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
+
+    NSDictionary *dict =
+        [NSDictionary dictionaryWithObjectsAndKeys:
+
+         // Service class ID list
+         [NSArray arrayWithObject:
+          [IOBluetoothSDPUUID uuid16: kBluetoothSDPUUID16ServiceClassSerialPort]],
+         @"0001 - ServiceClassIDList",
+
+         // Protocol descriptor list
+         [NSArray arrayWithObjects:
+          [NSArray arrayWithObject: [IOBluetoothSDPUUID uuid16: kBluetoothSDPUUID16L2CAP]],
+          [NSArray arrayWithObjects:
+           [IOBluetoothSDPUUID uuid16: kBluetoothL2CAPPSMRFCOMM],
+           [NSDictionary dictionaryWithObjectsAndKeys:
+            [NSNumber numberWithInt: 1],
+            @"DataElementSize",
+            [NSNumber numberWithInt: 1],
+            @"DataElementType",
+            [NSNumber numberWithInt: 5], // RFCOMM port number, will be replaced if necessary automatically
+            @"DataElementValue",
+            nil],
+           nil],
+          nil],
+         @"0004 - Protocol descriptor list",
+
+         // Browse group list
+         [NSArray arrayWithObject:
+          [IOBluetoothSDPUUID uuid16: kBluetoothSDPUUID16ServiceClassPublicBrowseGroup]],
+         @"0005 - BrowseGroupList",
+
+         // Language base attribute ID list
+         [NSArray arrayWithObjects:
+          [NSData dataWithBytes: "en" length: 2],
+          [NSDictionary dictionaryWithObjectsAndKeys:
+           [NSNumber numberWithInt: 2],
+           @"DataElementSize",
+           [NSNumber numberWithInt: 1],
+           @"DataElementType",
+           [NSNumber numberWithInt: 0x006a], // encoding
+           @"DataElementValue",
+           nil],
+          [NSDictionary dictionaryWithObjectsAndKeys:
+           [NSNumber numberWithInt: 2],
+           @"DataElementSize",
+           [NSNumber numberWithInt: 1],
+           @"DataElementType",
+           [NSNumber numberWithInt: 0x0100], // offset
+           @"DataElementValue",
+           nil],
+          nil],
+         @"0006 - LanguageBaseAttributeIDList",
+
+         // Bluetooth profile descriptor list
+         [NSArray arrayWithObject:
+          [NSArray arrayWithObjects:
+           [IOBluetoothSDPUUID uuid16: kBluetoothSDPUUID16ServiceClassSerialPort],
+           [NSDictionary dictionaryWithObjectsAndKeys:
+            [NSNumber numberWithInt: 2],
+            @"DataElementSize",
+            [NSNumber numberWithInt: 1],
+            @"DataElementType",
+            [NSNumber numberWithInt: 0x0100], // version number ?
+            @"DataElementValue",
+            nil],
+           nil]],
+         @"0009 - BluetoothProfileDescriptorList",
+
+         // Attributes pointed to by the LanguageBaseAttributeIDList
+         @"LibreOffice Impress Remote Control",
+         @"0100 - ServiceName",
+         @"The Document Foundation",
+         @"0102 - ProviderName",
+         nil];
+
+    // Create service
+    IOBluetoothSDPServiceRecordRef serviceRecordRef;
+    SAL_WNODEPRECATED_DECLARATIONS_PUSH //TODO: 10.9 IOBluetoothAddServiceDict
+    IOReturn rc = IOBluetoothAddServiceDict(reinterpret_cast<CFDictionaryRef>(dict), &serviceRecordRef);
+    SAL_WNODEPRECATED_DECLARATIONS_POP
+
+    SAL_INFO("sdremote.bluetooth", "IOBluetoothAddServiceDict returned " << rc);
+
+    if (rc == kIOReturnSuccess)
+    {
+        IOBluetoothSDPServiceRecord *serviceRecord =
+            [IOBluetoothSDPServiceRecord withSDPServiceRecordRef: serviceRecordRef];
+
+        BluetoothRFCOMMChannelID channelID;
+        [serviceRecord getRFCOMMChannelID: &channelID];
+
+        BluetoothSDPServiceRecordHandle serviceRecordHandle;
+        [serviceRecord getServiceRecordHandle: &serviceRecordHandle];
+
+        // Register callback for incoming connections
+        IOBluetoothRegisterForFilteredRFCOMMChannelOpenNotifications(
+            incomingCallback,
+            this,
+            channelID,
+            kIOBluetoothUserNotificationChannelDirectionIncoming);
+
+        [serviceRecord release];
+    }
+
+    [pool release];
+
+    (void) mpCommunicators;
+#else
+    (void) mpCommunicators; // avoid warnings about unused member
+#endif
+}
+
+BluetoothServer *sd::BluetoothServer::spServer = nullptr;
+
+void BluetoothServer::setup( std::vector<Communicator*>* pCommunicators )
+{
+    if (spServer)
+        return;
+
+    spServer = new BluetoothServer( pCommunicators );
+    spServer->create();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */