| 1 | /* |
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| 2 | SPDX-FileCopyrightText: 2012 Lukáš Tinkl <ltinkl@redhat.com> |
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| 3 | |
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| 4 | SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL |
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| 5 | */ |
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| 6 | |
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| 7 | #include "udisksblock.h" |
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| 8 | |
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| 9 | #if defined(Q_OS_LINUX) |
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| 10 | #include <linux/kdev_t.h> |
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| 11 | #else |
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| 12 | // taken from linux/kdev_t.h |
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| 13 | #define MINORBITS 20 |
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| 14 | #define MINORMASK ((1U << MINORBITS) - 1) |
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| 15 | #define MAJOR(dev) ((unsigned int)((dev) >> MINORBITS)) |
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| 16 | #define MINOR(dev) ((unsigned int)((dev)&MINORMASK)) |
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| 17 | #endif |
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| 18 | |
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| 19 | #include <QDBusConnection> |
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| 20 | #include <QDBusPendingReply> |
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| 21 | #include <QDomDocument> |
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| 22 | #include <QFile> |
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| 23 | |
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| 24 | #include "udisks_debug.h" |
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| 25 | |
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| 26 | using namespace Solid::Backends::UDisks2; |
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| 27 | |
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| 28 | Block::Block(Device *dev) |
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| 29 | : DeviceInterface(dev) |
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| 30 | , m_devNum(m_device->prop(QStringLiteral("DeviceNumber" )).toULongLong()) |
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| 31 | , m_devFile(QFile::decodeName(localFileName: m_device->prop(QStringLiteral("Device" )).toByteArray())) |
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| 32 | { |
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| 33 | // we have a drive (non-block device for udisks), so let's find the corresponding (real) block device |
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| 34 | if (m_devNum == 0 || m_devFile.isEmpty()) { |
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| 35 | QDBusMessage call = QDBusMessage::createMethodCall(QStringLiteral(UD2_DBUS_SERVICE), |
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| 36 | QStringLiteral(UD2_DBUS_PATH_BLOCKDEVICES), |
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| 37 | QStringLiteral(DBUS_INTERFACE_INTROSPECT), |
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| 38 | QStringLiteral("Introspect" )); |
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| 39 | QDBusPendingReply<QString> reply = QDBusConnection::systemBus().asyncCall(message: call); |
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| 40 | reply.waitForFinished(); |
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| 41 | |
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| 42 | if (reply.isValid()) { |
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| 43 | QDomDocument dom; |
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| 44 | dom.setContent(data: reply.value()); |
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| 45 | QDomNodeList nodeList = dom.documentElement().elementsByTagName(QStringLiteral("node" )); |
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| 46 | for (int i = 0; i < nodeList.count(); i++) { |
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| 47 | QDomElement nodeElem = nodeList.item(index: i).toElement(); |
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| 48 | if (!nodeElem.isNull() && nodeElem.hasAttribute(QStringLiteral("name" ))) { |
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| 49 | const QString udi = QStringLiteral(UD2_DBUS_PATH_BLOCKDEVICES) + QLatin1Char('/') + nodeElem.attribute(QStringLiteral("name" )); |
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| 50 | |
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| 51 | Device device(udi); |
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| 52 | if (device.drivePath() == dev->udi()) { |
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| 53 | m_devNum = device.prop(QStringLiteral("DeviceNumber" )).toULongLong(); |
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| 54 | m_devFile = QFile::decodeName(localFileName: device.prop(QStringLiteral("Device" )).toByteArray()); |
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| 55 | m_hintSystem = device.prop(QStringLiteral("HintSystem" )).toBool(); |
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| 56 | break; |
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| 57 | } |
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| 58 | } |
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| 59 | } |
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| 60 | } else { |
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| 61 | qCWarning(UDISKS2) << "Failed enumerating UDisks2 objects:" << reply.error().name() << QStringLiteral("\n" ) << reply.error().message(); |
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| 62 | } |
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| 63 | } |
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| 64 | |
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| 65 | // qDebug() << "devnum:" << m_devNum << "dev file:" << m_devFile; |
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| 66 | } |
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| 67 | |
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| 68 | Block::~Block() |
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| 69 | { |
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| 70 | } |
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| 71 | |
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| 72 | QString Block::device() const |
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| 73 | { |
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| 74 | return m_devFile; |
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| 75 | } |
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| 76 | |
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| 77 | int Block::deviceMinor() const |
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| 78 | { |
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| 79 | return MINOR(m_devNum); |
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| 80 | } |
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| 81 | |
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| 82 | int Block::deviceMajor() const |
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| 83 | { |
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| 84 | return MAJOR(m_devNum); |
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| 85 | } |
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| 86 | |
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| 87 | bool Block::isSystem() const |
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| 88 | { |
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| 89 | return m_hintSystem; |
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| 90 | } |
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| 91 | |
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| 92 | #include "moc_udisksblock.cpp" |
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| 93 | |
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