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Diffstat (limited to 'src/bluetooth/qbluetoothsocket_bluez.cpp')
| -rw-r--r-- | src/bluetooth/qbluetoothsocket_bluez.cpp | 549 |
1 files changed, 549 insertions, 0 deletions
diff --git a/src/bluetooth/qbluetoothsocket_bluez.cpp b/src/bluetooth/qbluetoothsocket_bluez.cpp new file mode 100644 index 00000000..78c0d995 --- /dev/null +++ b/src/bluetooth/qbluetoothsocket_bluez.cpp @@ -0,0 +1,549 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the Qt Mobility Components. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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, Nokia gives you certain additional +** rights. These rights are described in the Nokia 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qbluetoothsocket.h" +#include "qbluetoothsocket_p.h" + +#include "bluez/manager_p.h" +#include "bluez/adapter_p.h" +#include "bluez/device_p.h" + +#include <qplatformdefs.h> + +#include <bluetooth/bluetooth.h> +#include <bluetooth/rfcomm.h> +#include <bluetooth/l2cap.h> + +#include <errno.h> +#include <unistd.h> +#include <string.h> + +#include <QtCore/QSocketNotifier> + +QBluetoothSocketPrivate::QBluetoothSocketPrivate() + : socket(-1), + socketType(QBluetoothSocket::UnknownSocketType), + state(QBluetoothSocket::UnconnectedState), + readNotifier(0), + connectWriteNotifier(0), + connecting(false), + discoveryAgent(0) +{ +} + +QBluetoothSocketPrivate::~QBluetoothSocketPrivate() +{ + delete readNotifier; + readNotifier = 0; + delete connectWriteNotifier; + connectWriteNotifier = 0; +} + +bool QBluetoothSocketPrivate::ensureNativeSocket(QBluetoothSocket::SocketType type) +{ + if (socket != -1) { + if (socketType == type) + return true; + + delete readNotifier; + readNotifier = 0; + delete connectWriteNotifier; + connectWriteNotifier = 0; + QT_CLOSE(socket); + } + + socketType = type; + + switch (type) { + case QBluetoothSocket::L2capSocket: + socket = ::socket(AF_BLUETOOTH, SOCK_SEQPACKET, BTPROTO_L2CAP); + break; + case QBluetoothSocket::RfcommSocket: + socket = ::socket(AF_BLUETOOTH, SOCK_STREAM, BTPROTO_RFCOMM); + break; + default: + socket = -1; + } + + if (socket == -1) + return false; + + int flags = fcntl(socket, F_GETFL, 0); + fcntl(socket, F_SETFL, flags | O_NONBLOCK); + + Q_Q(QBluetoothSocket); + readNotifier = new QSocketNotifier(socket, QSocketNotifier::Read); + QObject::connect(readNotifier, SIGNAL(activated(int)), q, SLOT(_q_readNotify())); + connectWriteNotifier = new QSocketNotifier(socket, QSocketNotifier::Write, q); + QObject::connect(connectWriteNotifier, SIGNAL(activated(int)), q, SLOT(_q_writeNotify())); + + connectWriteNotifier->setEnabled(false); + readNotifier->setEnabled(false); + + + return true; +} + +void QBluetoothSocketPrivate::connectToService(const QBluetoothAddress &address, quint16 port, QIODevice::OpenMode openMode) +{ + Q_Q(QBluetoothSocket); + Q_UNUSED(openMode); + int result = -1; + + if (socketType == QBluetoothSocket::RfcommSocket) { + sockaddr_rc addr; + + memset(&addr, 0, sizeof(addr)); + addr.rc_family = AF_BLUETOOTH; + addr.rc_channel = port; + + convertAddress(address.toUInt64(), addr.rc_bdaddr.b); + + connectWriteNotifier->setEnabled(true); + readNotifier->setEnabled(true);QString(); + + result = ::connect(socket, (sockaddr *)&addr, sizeof(addr)); + } else if (socketType == QBluetoothSocket::L2capSocket) { + sockaddr_l2 addr; + + memset(&addr, 0, sizeof(addr)); + addr.l2_family = AF_BLUETOOTH; + addr.l2_psm = port; + + convertAddress(address.toUInt64(), addr.l2_bdaddr.b); + + connectWriteNotifier->setEnabled(true); + readNotifier->setEnabled(true); + + result = ::connect(socket, (sockaddr *)&addr, sizeof(addr)); + } + + if (result >= 0 || (result == -1 && errno == EINPROGRESS)) { + connecting = true; + q->setSocketState(QBluetoothSocket::ConnectingState); + } else { + errorString = QString::fromLocal8Bit(strerror(errno)); + q->setSocketError(QBluetoothSocket::UnknownSocketError); + } +} + +void QBluetoothSocketPrivate::_q_writeNotify() +{ + Q_Q(QBluetoothSocket); + if(connecting && state == QBluetoothSocket::ConnectingState){ + int errorno, len; + len = sizeof(errorno); + ::getsockopt(socket, SOL_SOCKET, SO_ERROR, &errorno, (socklen_t*)&len); + if(errorno) { + errorString = QString::fromLocal8Bit(strerror(errorno)); + emit q->error(QBluetoothSocket::UnknownSocketError); + return; + } + + q->setSocketState(QBluetoothSocket::ConnectedState); + emit q->connected(); + + connectWriteNotifier->setEnabled(false); + connecting = false; + } + else { + if (txBuffer.size() == 0) { + connectWriteNotifier->setEnabled(false); + return; + } + + char buf[1024]; + Q_Q(QBluetoothSocket); + + int size = txBuffer.read(buf, 1024); + + if (::write(socket, buf, size) != size) { + socketError = QBluetoothSocket::NetworkError; + emit q->error(socketError); + } + else { + emit q->bytesWritten(size); + } + + if (txBuffer.size()) { + connectWriteNotifier->setEnabled(true); + } + else if (state == QBluetoothSocket::ClosingState) { + connectWriteNotifier->setEnabled(false); + this->close(); + } + } +} + +// TODO: move to private backend? + +void QBluetoothSocketPrivate::_q_readNotify() +{ + Q_Q(QBluetoothSocket); + char *writePointer = buffer.reserve(QPRIVATELINEARBUFFER_BUFFERSIZE); +// qint64 readFromDevice = q->readData(writePointer, QPRIVATELINEARBUFFER_BUFFERSIZE); + int readFromDevice = ::read(socket, writePointer, QPRIVATELINEARBUFFER_BUFFERSIZE); + if(readFromDevice <= 0){ + int errsv = errno; + readNotifier->setEnabled(false); + connectWriteNotifier->setEnabled(false); + errorString = QString::fromLocal8Bit(strerror(errsv)); + qDebug() << Q_FUNC_INFO << socket << "error:" << readFromDevice << errorString; + if(errsv == EHOSTDOWN) + emit q->error(QBluetoothSocket::HostNotFoundError); + else + emit q->error(QBluetoothSocket::UnknownSocketError); + + q->disconnectFromService(); + q->setSocketState(QBluetoothSocket::UnconnectedState); + } + else { + buffer.chop(QPRIVATELINEARBUFFER_BUFFERSIZE - (readFromDevice < 0 ? 0 : readFromDevice)); + + emit q->readyRead(); + } +} + +void QBluetoothSocketPrivate::abort() +{ + delete readNotifier; + readNotifier = 0; + delete connectWriteNotifier; + connectWriteNotifier = 0; + + // We don't transition through Closing for abort, so + // we don't call disconnectFromService or + // QBluetoothSocket::close + QT_CLOSE(socket); + + Q_Q(QBluetoothSocket); + emit q->disconnected(); +} + +QString QBluetoothSocketPrivate::localName() const +{ + if (!m_localName.isEmpty()) + return m_localName; + + const QBluetoothAddress address = localAddress(); + if (address.isNull()) + return QString(); + + OrgBluezManagerInterface manager(QLatin1String("org.bluez"), QLatin1String("/"), + QDBusConnection::systemBus()); + + QDBusPendingReply<QDBusObjectPath> reply = manager.FindAdapter(address.toString()); + reply.waitForFinished(); + if (reply.isError()) + return QString(); + + OrgBluezAdapterInterface adapter(QLatin1String("org.bluez"), reply.value().path(), + QDBusConnection::systemBus()); + + QDBusPendingReply<QVariantMap> properties = adapter.GetProperties(); + properties.waitForFinished(); + if (properties.isError()) + return QString(); + + m_localName = properties.value().value(QLatin1String("Name")).toString(); + + return m_localName; +} + +QBluetoothAddress QBluetoothSocketPrivate::localAddress() const +{ + if (socketType == QBluetoothSocket::RfcommSocket) { + sockaddr_rc addr; + socklen_t addrLength = sizeof(addr); + + if (::getsockname(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) { + quint64 bdaddr; + convertAddress(addr.rc_bdaddr.b, bdaddr); + return QBluetoothAddress(bdaddr); + } + } else if (socketType == QBluetoothSocket::L2capSocket) { + sockaddr_l2 addr; + socklen_t addrLength = sizeof(addr); + + if (::getsockname(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) { + quint64 bdaddr; + convertAddress(addr.l2_bdaddr.b, bdaddr); + return QBluetoothAddress(bdaddr); + } + } + + return QBluetoothAddress(); +} + +quint16 QBluetoothSocketPrivate::localPort() const +{ + if (socketType == QBluetoothSocket::RfcommSocket) { + sockaddr_rc addr; + socklen_t addrLength = sizeof(addr); + + if (::getsockname(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) + return addr.rc_channel; + } else if (socketType == QBluetoothSocket::L2capSocket) { + sockaddr_l2 addr; + socklen_t addrLength = sizeof(addr); + + if (::getsockname(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) + return addr.l2_psm; + } + + return 0; +} + +QString QBluetoothSocketPrivate::peerName() const +{ + if (!m_peerName.isEmpty()) + return m_peerName; + + quint64 bdaddr; + + if (socketType == QBluetoothSocket::RfcommSocket) { + sockaddr_rc addr; + socklen_t addrLength = sizeof(addr); + + if (::getpeername(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) < 0) + return QString(); + + convertAddress(addr.rc_bdaddr.b, bdaddr); + } else if (socketType == QBluetoothSocket::L2capSocket) { + sockaddr_l2 addr; + socklen_t addrLength = sizeof(addr); + + if (::getpeername(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) < 0) + return QString(); + + convertAddress(addr.l2_bdaddr.b, bdaddr); + } else { + qWarning("peerName() called on socket of known type"); + return QString(); + } + + const QString address = QBluetoothAddress(bdaddr).toString(); + + OrgBluezManagerInterface manager(QLatin1String("org.bluez"), QLatin1String("/"), + QDBusConnection::systemBus()); + + QDBusPendingReply<QDBusObjectPath> reply = manager.DefaultAdapter(); + reply.waitForFinished(); + if (reply.isError()) + return QString(); + + OrgBluezAdapterInterface adapter(QLatin1String("org.bluez"), reply.value().path(), + QDBusConnection::systemBus()); + + QDBusPendingReply<QDBusObjectPath> deviceObjectPath = adapter.CreateDevice(address); + deviceObjectPath.waitForFinished(); + if (deviceObjectPath.isError()) { + if (deviceObjectPath.error().name() != QLatin1String("org.bluez.Error.AlreadyExists")) + return QString(); + + deviceObjectPath = adapter.FindDevice(address); + deviceObjectPath.waitForFinished(); + if (deviceObjectPath.isError()) + return QString(); + } + + OrgBluezDeviceInterface device(QLatin1String("org.bluez"), deviceObjectPath.value().path(), + QDBusConnection::systemBus()); + + QDBusPendingReply<QVariantMap> properties = device.GetProperties(); + properties.waitForFinished(); + if (properties.isError()) + return QString(); + + m_peerName = properties.value().value(QLatin1String("Alias")).toString(); + + return m_peerName; +} + +QBluetoothAddress QBluetoothSocketPrivate::peerAddress() const +{ + if (socketType == QBluetoothSocket::RfcommSocket) { + sockaddr_rc addr; + socklen_t addrLength = sizeof(addr); + + if (::getpeername(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) { + quint64 bdaddr; + convertAddress(addr.rc_bdaddr.b, bdaddr); + return QBluetoothAddress(bdaddr); + } + } else if (socketType == QBluetoothSocket::L2capSocket) { + sockaddr_l2 addr; + socklen_t addrLength = sizeof(addr); + + if (::getpeername(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) { + quint64 bdaddr; + convertAddress(addr.l2_bdaddr.b, bdaddr); + return QBluetoothAddress(bdaddr); + } + } + + return QBluetoothAddress(); +} + +quint16 QBluetoothSocketPrivate::peerPort() const +{ + if (socketType == QBluetoothSocket::RfcommSocket) { + sockaddr_rc addr; + socklen_t addrLength = sizeof(addr); + + if (::getpeername(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) + return addr.rc_channel; + } else if (socketType == QBluetoothSocket::L2capSocket) { + sockaddr_l2 addr; + socklen_t addrLength = sizeof(addr); + + if (::getpeername(socket, reinterpret_cast<sockaddr *>(&addr), &addrLength) == 0) + return addr.l2_psm; + } + + return 0; +} + +qint64 QBluetoothSocketPrivate::writeData(const char *data, qint64 maxSize) +{ + Q_Q(QBluetoothSocket); + if (q->openMode() & QIODevice::Unbuffered) { + if (::write(socket, data, maxSize) != maxSize) { + socketError = QBluetoothSocket::NetworkError; + emit q->error(socketError); + } + + emit q->bytesWritten(maxSize); + + return maxSize; + } + else { + + if(!connectWriteNotifier) + return 0; + + if(txBuffer.size() == 0) { + connectWriteNotifier->setEnabled(true); + QMetaObject::invokeMethod(q, "_q_writeNotify", Qt::QueuedConnection); + } + + char *txbuf = txBuffer.reserve(maxSize); + memcpy(txbuf, data, maxSize); + + return maxSize; + } +} + +qint64 QBluetoothSocketPrivate::readData(char *data, qint64 maxSize) +{ + if(!buffer.isEmpty()){ + int i = buffer.read(data, maxSize); + return i; + + } + return 0; +} + +void QBluetoothSocketPrivate::close() +{ + Q_Q(QBluetoothSocket); + + // Only go through closing if the socket was fully opened + if(state == QBluetoothSocket::ConnectedState) + q->setSocketState(QBluetoothSocket::ClosingState); + + if(txBuffer.size() > 0 && + state == QBluetoothSocket::ClosingState){ + connectWriteNotifier->setEnabled(true); + } + else { + + delete readNotifier; + readNotifier = 0; + delete connectWriteNotifier; + connectWriteNotifier = 0; + + // We are disconnected now, so go to unconnected. + q->setSocketState(QBluetoothSocket::UnconnectedState); + emit q->disconnected(); + ::close(socket); + } + +} + +bool QBluetoothSocketPrivate::setSocketDescriptor(int socketDescriptor, QBluetoothSocket::SocketType socketType_, + QBluetoothSocket::SocketState socketState, QBluetoothSocket::OpenMode openMode) +{ + Q_Q(QBluetoothSocket); + delete readNotifier; + readNotifier = 0; + delete connectWriteNotifier; + connectWriteNotifier = 0; + + socketType = socketType_; + socket = socketDescriptor; + + // ensure that O_NONBLOCK is set on new connections. + int flags = fcntl(socket, F_GETFL, 0); + if (!(flags & O_NONBLOCK)) + fcntl(socket, F_SETFL, flags | O_NONBLOCK); + + readNotifier = new QSocketNotifier(socket, QSocketNotifier::Read); + QObject::connect(readNotifier, SIGNAL(activated(int)), q, SLOT(_q_readNotify())); + connectWriteNotifier = new QSocketNotifier(socket, QSocketNotifier::Write, q); + QObject::connect(connectWriteNotifier, SIGNAL(activated(int)), q, SLOT(_q_writeNotify())); + + q->setSocketState(socketState); + q->setOpenMode(openMode); + + return true; +} + +int QBluetoothSocketPrivate::socketDescriptor() const +{ + return socket; +} + +qint64 QBluetoothSocketPrivate::bytesAvailable() const +{ + return buffer.size(); +} + |