tdestoragedevice.cpp

/* This file is part of the TDE libraries
   Copyright (C) 2012 Timothy Pearson <kb9vqf@pearsoncomputing.net>
             (C) 2013 Golubev Alexander <fatzer2@gmail.com>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License version 2 as published by the Free Software Foundation.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this library; see the file COPYING.LIB.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
   Boston, MA 02110-1301, USA.
*/

#include "tdestoragedevice.h"

#include <unistd.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <linux/cdrom.h>

#include <tqregexp.h>
#include <tqpixmap.h>
#include <tqfile.h>

#include "kdebug.h"
#include "tdelocale.h"
#include "tdeglobal.h"
#include "kiconloader.h"
#include "tdetempfile.h"
#include "kstandarddirs.h"
#include "tdehardwaredevices.h"
#include "disksHelper.h"

#include "config.h"

#if defined(WITH_CRYPTSETUP)
    #ifdef CRYPTSETUP_OLD_API
        #define class cryptsetup_class
        #define CRYPT_SLOT_INVALID INVALID
        #define CRYPT_SLOT_INACTIVE INACTIVE
        #define CRYPT_SLOT_ACTIVE ACTIVE
        #define CRYPT_SLOT_BUSY BUSY
        #define CRYPT_SLOT_ACTIVE_LAST ACTIVE
        #include <libcryptsetup.h>
        #undef class
    #else
        #include <libcryptsetup.h>
    #endif
#endif

TDEStorageDevice::TDEStorageDevice(TDEGenericDeviceType::TDEGenericDeviceType dt, TQString dn) : TDEGenericDevice(dt, dn), m_mediaInserted(true), m_cryptDevice(NULL) {
    m_diskType = TDEDiskDeviceType::Null;
    m_diskStatus = TDEDiskDeviceStatus::Null;
}

TDEStorageDevice::~TDEStorageDevice() {
#if defined(WITH_CRYPTSETUP)
    if (m_cryptDevice) {
        crypt_free(m_cryptDevice);
        m_cryptDevice = NULL;
    }
#endif
}

TDEDiskDeviceType::TDEDiskDeviceType TDEStorageDevice::diskType() {
    return m_diskType;
}

void TDEStorageDevice::internalGetLUKSKeySlotStatus() {
#if defined(WITH_CRYPTSETUP)
    unsigned int i;
    crypt_keyslot_info keyslot_status;
    TDELUKSKeySlotStatus::TDELUKSKeySlotStatus tde_keyslot_status;

    m_cryptKeyslotStatus.clear();
    for (i = 0; i < m_cryptKeySlotCount; i++) {
        keyslot_status = crypt_keyslot_status(m_cryptDevice, i);
        tde_keyslot_status = TDELUKSKeySlotStatus::Invalid;
        if (keyslot_status == CRYPT_SLOT_INACTIVE) {
            tde_keyslot_status = TDELUKSKeySlotStatus::Inactive;
        }
        else if (keyslot_status == CRYPT_SLOT_ACTIVE) {
            tde_keyslot_status = TDELUKSKeySlotStatus::Active;
        }
        else if (keyslot_status == CRYPT_SLOT_ACTIVE_LAST) {
            tde_keyslot_status = TDELUKSKeySlotStatus::Active | TDELUKSKeySlotStatus::Last;
        }
        m_cryptKeyslotStatus.append(tde_keyslot_status);
    }
#endif
}

void TDEStorageDevice::internalInitializeLUKSIfNeeded() {
#if defined(WITH_CRYPTSETUP)
    int ret;

    if (m_diskType & TDEDiskDeviceType::LUKS) {
        if (!m_cryptDevice) {
            TQString node = deviceNode();
            if (node != "") {
                ret = crypt_init(&m_cryptDevice, node.ascii());
                if (ret == 0) {
                    ret = crypt_load(m_cryptDevice, NULL, NULL);
                    if (ret == 0) {
                        int keyslot_count;
#if defined(CRYPTSETUP_OLD_API) || !defined(HAVE_CRYPTSETUP_GET_TYPE)
                        kdWarning() << "TDEStorageDevice: The version of libcryptsetup that TDE was compiled against was too old!  Most LUKS features will not function" << endl;
                        m_cryptDeviceType = TQString::null;
                        keyslot_count = 0;
#else
                        m_cryptDeviceType = crypt_get_type(m_cryptDevice);
                        keyslot_count = crypt_keyslot_max(m_cryptDeviceType.ascii());
#endif
                        if (keyslot_count < 0) {
                            m_cryptKeySlotCount = 0;
                        }
                        else {
                            m_cryptKeySlotCount = keyslot_count;
                        }
                        internalGetLUKSKeySlotStatus();
                    }
                }
                else {
                    m_cryptDevice = NULL;
                }
            }
        }
    }
    else {
        if (m_cryptDevice) {
            crypt_free(m_cryptDevice);
            m_cryptDevice = NULL;
        }
    }
#endif
}

void TDEStorageDevice::cryptSetOperationsUnlockPassword(TQByteArray password) {
#if defined(WITH_CRYPTSETUP)
    crypt_memory_lock(NULL, 1);
    m_cryptDevicePassword = password;
#endif
}

void TDEStorageDevice::cryptClearOperationsUnlockPassword() {
    m_cryptDevicePassword.fill(0);
    m_cryptDevicePassword.resize(0);
#if defined(WITH_CRYPTSETUP)
    crypt_memory_lock(NULL, 0);
#endif
}

bool TDEStorageDevice::cryptOperationsUnlockPasswordSet() {
    if (m_cryptDevicePassword.size() > 0) {
        return true;
    }
    else {
        return false;
    }
}

TDELUKSResult::TDELUKSResult TDEStorageDevice::cryptCheckKey(unsigned int keyslot) {
#if defined(WITH_CRYPTSETUP)
    int ret;

    if (m_cryptDevice) {
        if (keyslot < m_cryptKeySlotCount) {
            ret = crypt_activate_by_passphrase(m_cryptDevice, NULL, keyslot, m_cryptDevicePassword.data(), m_cryptDevicePassword.size(), 0);
            if (ret < 0) {
                return TDELUKSResult::KeyslotOpFailed;
            }
            else {
                return TDELUKSResult::Success;
            }
        }
        else {
            return TDELUKSResult::InvalidKeyslot;
        }
    }
    else {
        return TDELUKSResult::LUKSNotFound;
    }
#else
    return TDELUKSResult::LUKSNotSupported;
#endif
}

TDELUKSResult::TDELUKSResult TDEStorageDevice::cryptAddKey(unsigned int keyslot, TQByteArray password) {
#if defined(WITH_CRYPTSETUP)
    int ret;

    if (m_cryptDevice) {
        if (keyslot < m_cryptKeySlotCount) {
            ret = crypt_keyslot_add_by_passphrase(m_cryptDevice, keyslot, m_cryptDevicePassword.data(), m_cryptDevicePassword.size(), password.data(), password.size());
            if (ret < 0) {
                return TDELUKSResult::KeyslotOpFailed;
            }
            else {
                internalGetLUKSKeySlotStatus();
                return TDELUKSResult::Success;
            }
        }
        else {
            return TDELUKSResult::InvalidKeyslot;
        }
    }
    else {
        return TDELUKSResult::LUKSNotFound;
    }
#else
    return TDELUKSResult::LUKSNotSupported;
#endif
}

TDELUKSResult::TDELUKSResult TDEStorageDevice::cryptDelKey(unsigned int keyslot) {
#if defined(WITH_CRYPTSETUP)
    int ret;

    if (m_cryptDevice) {
        if (keyslot < m_cryptKeySlotCount) {
            ret = crypt_keyslot_destroy(m_cryptDevice, keyslot);
            if (ret < 0) {
                return TDELUKSResult::KeyslotOpFailed;
            }
            else {
                internalGetLUKSKeySlotStatus();
                return TDELUKSResult::Success;
            }
        }
        else {
            return TDELUKSResult::InvalidKeyslot;
        }
    }
    else {
        return TDELUKSResult::LUKSNotFound;
    }
#else
    return TDELUKSResult::LUKSNotSupported;
#endif
}

unsigned int TDEStorageDevice::cryptKeySlotCount() {
    return m_cryptKeySlotCount;
}

TDELUKSKeySlotStatusList TDEStorageDevice::cryptKeySlotStatus() {
    return m_cryptKeyslotStatus;
}

TQString TDEStorageDevice::cryptKeySlotFriendlyName(TDELUKSKeySlotStatus::TDELUKSKeySlotStatus status) {
    if (status & TDELUKSKeySlotStatus::Inactive) {
        return i18n("Inactive");
    }
    else if (status & TDELUKSKeySlotStatus::Active) {
        return i18n("Active");
    }
    else {
        return i18n("Unknown");
    }
}

void TDEStorageDevice::internalSetDeviceNode(TQString sn) {
    TDEGenericDevice::internalSetDeviceNode(sn);
    internalInitializeLUKSIfNeeded();
}

void TDEStorageDevice::internalSetDiskType(TDEDiskDeviceType::TDEDiskDeviceType dt) {
    m_diskType = dt;
    internalInitializeLUKSIfNeeded();
}

bool TDEStorageDevice::isDiskOfType(TDEDiskDeviceType::TDEDiskDeviceType tf) {
    return ((m_diskType&tf)!=TDEDiskDeviceType::Null);
}

TDEDiskDeviceStatus::TDEDiskDeviceStatus TDEStorageDevice::diskStatus() {
    return m_diskStatus;
}

void TDEStorageDevice::internalSetDiskStatus(TDEDiskDeviceStatus::TDEDiskDeviceStatus st) {
    m_diskStatus = st;
}

bool TDEStorageDevice::checkDiskStatus(TDEDiskDeviceStatus::TDEDiskDeviceStatus sf) {
    return ((m_diskStatus&sf)!=(TDEDiskDeviceStatus::TDEDiskDeviceStatus)0);
}

bool TDEStorageDevice::lockDriveMedia(bool lock) {
    int fd = open(deviceNode().ascii(), O_RDWR | O_NONBLOCK);
    if (fd < 0) {
        return false;
    }
    if (ioctl(fd, CDROM_LOCKDOOR, (lock)?1:0) != 0) {
        close(fd);
        return false;
    }
    else {
        close(fd);
        return true;
    }
}

bool TDEStorageDevice::ejectDrive() {
    if (!(TDEGlobal::dirs()->findExe("udisksctl").isEmpty())) {
        TQStringVariantMap ejectResult = UDisks2EjectDrive(this);
        if (ejectResult["result"].toBool()) {
            return true;
        }
        else {
            printf("[tdehwlib] Failed to eject drive '%s' via udisks2, falling back to alternate mechanism\n", deviceNode().ascii());
            fflush(stdout);
        }
    }
    if (!(TDEGlobal::dirs()->findExe("udisks").isEmpty())) {
        TQStringVariantMap ejectResult = UDisksEjectDrive(this);
        if (ejectResult["result"].toBool()) {
            return true;
        }
        else {
            printf("[tdehwlib] Failed to eject drive '%s' via udisks, falling back to alternate mechanism\n", deviceNode().ascii());
            fflush(stdout);
        }
    }

    if (!(TDEGlobal::dirs()->findExe("eject").isEmpty())) {
        TQString command = TQString("eject -v '%1' 2>&1").arg(deviceNode());

        FILE *exepipe = popen(command.ascii(), "r");
        if (exepipe) {
            TQString eject_output;
            TQTextStream ts(exepipe, IO_ReadOnly);
            eject_output = ts.read();
            int retcode = pclose(exepipe);
            if (retcode == 0) {
                return true;
            }
        }
        printf("[tdehwlib] Failed to eject drive '%s' via 'eject' command\n", deviceNode().ascii());
        fflush(stdout);
    }

    return false;
}

bool TDEStorageDevice::ejectDriveMedia() {
    int fd = open(deviceNode().ascii(), O_RDWR | O_NONBLOCK);
    if (fd < 0) {
        return false;
    }
    if (ioctl(fd, CDROMEJECT) != 0) {
        close(fd);
        return false;
    }
    else {
        close(fd);
        return true;
    }
}

TQString TDEStorageDevice::diskLabel() {
    return m_diskName;
}

void TDEStorageDevice::internalSetDiskLabel(TQString dn) {
    m_diskName = dn;
}

bool TDEStorageDevice::mediaInserted() {
    return m_mediaInserted;
}

void TDEStorageDevice::internalSetMediaInserted(bool inserted) {
    m_mediaInserted = inserted;
}

TQString TDEStorageDevice::fileSystemName() {
    return m_fileSystemName;
}

void TDEStorageDevice::internalSetFileSystemName(TQString fn) {
    m_fileSystemName = fn;
}

TQString TDEStorageDevice::fileSystemUsage() {
    return m_fileSystemUsage;
}

void TDEStorageDevice::internalSetFileSystemUsage(TQString fu) {
    m_fileSystemUsage = fu;
}

TQString TDEStorageDevice::diskUUID() {
    return m_diskUUID;
}

void TDEStorageDevice::internalSetDiskUUID(TQString id) {
    m_diskUUID = id;
}

TQStringList TDEStorageDevice::holdingDevices() {
    return m_holdingDevices;
}

void TDEStorageDevice::internalSetHoldingDevices(TQStringList hd) {
    m_holdingDevices = hd;
}

TQStringList TDEStorageDevice::slaveDevices() {
    return m_slaveDevices;
}

void TDEStorageDevice::internalSetSlaveDevices(TQStringList sd) {
    m_slaveDevices = sd;
}

TQString decodeHexEncoding(TQString str) {
    TQRegExp hexEncRegExp("\\\\x[0-9A-Fa-f]{1,2}");
    hexEncRegExp.setMinimal(false);
    hexEncRegExp.setCaseSensitive(true);
    int s = -1;

    while((s = hexEncRegExp.search(str, s+1))>=0){
        str.replace(s, hexEncRegExp.cap(0).length(), TQChar((char)strtol(hexEncRegExp.cap(0).mid(2).ascii(), NULL, 16)));
    }

    return str;
}

TQString TDEStorageDevice::friendlyName() {
    // Return the actual storage device name
    TQString devicevendorid = vendorEncoded();
    TQString devicemodelid = modelEncoded();

    devicevendorid = decodeHexEncoding(devicevendorid);
    devicemodelid = decodeHexEncoding(devicemodelid);

    devicevendorid = devicevendorid.stripWhiteSpace();
    devicemodelid = devicemodelid.stripWhiteSpace();
    devicevendorid = devicevendorid.simplifyWhiteSpace();
    devicemodelid = devicemodelid.simplifyWhiteSpace();

    TQString devicename = devicevendorid + " " + devicemodelid;

    devicename = devicename.stripWhiteSpace();
    devicename = devicename.simplifyWhiteSpace();

    if (devicename != "") {
        return devicename;
    }

    if (isDiskOfType(TDEDiskDeviceType::Camera)) {
        return TDEGenericDevice::friendlyName();
    }

    if (isDiskOfType(TDEDiskDeviceType::Floppy)) {
        return friendlyDeviceType();
    }

    TQString label = diskLabel();
    if (label.isNull()) {
        if (deviceSize() > 0) {
            if (checkDiskStatus(TDEDiskDeviceStatus::Hotpluggable)) {
                label = i18n("%1 Removable Device").arg(deviceFriendlySize());
            }
            else {
                label = i18n("%1 Fixed Storage Device").arg(deviceFriendlySize());
            }
        }
    }

    if (!label.isNull()) {
        return label;
    }

    return friendlyDeviceType();
}

TQString TDEStorageDevice::detailedFriendlyName() {
    return TQString("%1 [%2]").arg(friendlyName()).arg(deviceNode());
}

TQString TDEStorageDevice::friendlyDeviceType() {
    TQString ret = i18n("Hard Disk Drive");

    // Keep this in sync with TDEStorageDevice::icon(TDEIcon::StdSizes size) below
    if (isDiskOfType(TDEDiskDeviceType::Floppy)) {
        ret = i18n("Floppy Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::Optical)) {
        ret = i18n("Optical Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::CDROM)) {
        ret = i18n("CDROM Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::CDRW)) {
        ret = i18n("CDRW Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::DVDROM)) {
        ret = i18n("DVD Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::DVDRW)) {
        ret = i18n("DVDRW Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::DVDRAM)) {
        ret = i18n("DVDRAM Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::Zip)) {
        ret = i18n("Zip Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::Tape)) {
        ret = i18n("Tape Drive");
    }
    if (isDiskOfType(TDEDiskDeviceType::Camera)) {
        ret = i18n("Digital Camera");
    }

    if (isDiskOfType(TDEDiskDeviceType::HDD)) {
        ret = i18n("Hard Disk Drive");
        if (checkDiskStatus(TDEDiskDeviceStatus::Hotpluggable)) {
            ret = i18n("Removable Storage");
        }
        if (isDiskOfType(TDEDiskDeviceType::CompactFlash)) {
            ret = i18n("Compact Flash");
        }
        if (isDiskOfType(TDEDiskDeviceType::MemoryStick)) {
            ret = i18n("Memory Stick");
        }
        if (isDiskOfType(TDEDiskDeviceType::SmartMedia)) {
            ret = i18n("Smart Media");
        }
        if (isDiskOfType(TDEDiskDeviceType::SDMMC)) {
            ret = i18n("Secure Digital");
        }
    }

    if (isDiskOfType(TDEDiskDeviceType::RAM)) {
        ret = i18n("Random Access Memory");
    }
    if (isDiskOfType(TDEDiskDeviceType::Loop)) {
        ret = i18n("Loop Device");
    }

    return ret;
}

TQPixmap TDEStorageDevice::icon(TDEIcon::StdSizes size) {
    TQString mountString;
    if (mountPath() != TQString::null) {
        mountString = "-mounted";
    }
    else {
        mountString = "-unmounted";
    }

    TQPixmap ret = DesktopIcon("drive-harddisk" + mountString, size);

    if (isDiskOfType(TDEDiskDeviceType::Floppy)) {
        ret = DesktopIcon("media-floppy-3_5" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::Optical)) {
        ret = DesktopIcon("media-optical-cdrom" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::CDROM)) {
        ret = DesktopIcon("media-optical-cdrom" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::CDRW)) {
        ret = DesktopIcon("cd-rw" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::DVDROM)) {
        ret = DesktopIcon("media-optical-dvd" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::DVDRW)) {
        ret = DesktopIcon("media-optical-dvd" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::DVDRAM)) {
        ret = DesktopIcon("media-optical-dvd" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::Zip)) {
        ret = DesktopIcon("media-floppy-zip" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::Tape)) {
        ret = DesktopIcon("media-tape" + mountString, size);
    }
    if (isDiskOfType(TDEDiskDeviceType::Camera)) {
        ret = DesktopIcon("camera" + mountString, size);
    }

    if (isDiskOfType(TDEDiskDeviceType::HDD)) {
        ret = DesktopIcon("drive-harddisk" + mountString, size);
        if (checkDiskStatus(TDEDiskDeviceStatus::Hotpluggable)) {
            ret = DesktopIcon("media-flash-usb" + mountString, size);
        }
        if (isDiskOfType(TDEDiskDeviceType::CompactFlash)) {
            ret = DesktopIcon("media-flash-compact_flash" + mountString, size);
        }
        if (isDiskOfType(TDEDiskDeviceType::MemoryStick)) {
            ret = DesktopIcon("media-flash-memory_stick" + mountString, size);
        }
        if (isDiskOfType(TDEDiskDeviceType::SmartMedia)) {
            ret = DesktopIcon("media-flash-smart_media" + mountString, size);
        }
        if (isDiskOfType(TDEDiskDeviceType::SDMMC)) {
            ret = DesktopIcon("media-flash-sd_mmc" + mountString, size);
        }
    }

    if (isDiskOfType(TDEDiskDeviceType::RAM)) {
        ret = DesktopIcon("memory", size);  // FIXME there is only a single icon available for this device
    }
    if (isDiskOfType(TDEDiskDeviceType::Loop)) {
        ret = DesktopIcon("blockdevice", size);  // FIXME there is only a single icon available for this device
    }

    return ret;
}

unsigned long long TDEStorageDevice::deviceSize() {
    TQString bsnodename = systemPath();
    // While at first glance it would seem that checking /queue/physical_block_size would be needed to get an accurate device size, in reality Linux
    // appears to only ever report the device size in 512 byte units.  This does not appear to be documented anywhere!
    TQString blocksize = "512";

    TQString dsnodename = systemPath();
    dsnodename.append("/size");
    TQFile dsfile( dsnodename );
    TQString devicesize;
    if ( dsfile.open( IO_ReadOnly ) ) {
        TQTextStream stream( &dsfile );
        devicesize = stream.readLine();
        dsfile.close();
    }

    return ((unsigned long long)blocksize.toULong()*(unsigned long long)devicesize.toULong());
}

TQString TDEStorageDevice::deviceFriendlySize() {
    return TDEHardwareDevices::bytesToFriendlySizeString(deviceSize());
}

TQString TDEStorageDevice::mountPath() {
    // See if this device node is mounted
    // This requires parsing /proc/mounts, looking for deviceNode()

    // The Device Mapper throws a monkey wrench into this
    // It likes to advertise mounts as /dev/mapper/<something>,
    // where <something> is listed in <system path>/dm/name

    // First, ensure that all device information (mainly holders/slaves) is accurate
    TDEGlobal::hardwareDevices()->rescanDeviceInformation(this);

    TQString dmnodename = systemPath();
    dmnodename.append("/dm/name");
    TQFile namefile( dmnodename );
    TQString dmaltname;
    if ( namefile.open( IO_ReadOnly ) ) {
        TQTextStream stream( &namefile );
        dmaltname = stream.readLine();
        namefile.close();
    }
    if (!dmaltname.isNull()) {
        dmaltname.prepend("/dev/mapper/");
    }

    TQStringList lines;
    TQFile file( "/proc/mounts" );
    if ( file.open( IO_ReadOnly ) ) {
        TQTextStream stream( &file );
        TQString line;
        while ( !stream.atEnd() ) {
            line = stream.readLine();
            TQStringList mountInfo = TQStringList::split(" ", line, true);
            TQString testNode = *mountInfo.at(0);
            // Check for match
            if ((testNode == deviceNode()) || (testNode == dmaltname) || (testNode == ("/dev/disk/by-uuid/" + diskUUID()))) {
                TQString ret = *mountInfo.at(1);
                ret.replace("\\040", " ");
                return ret;
            }
            lines += line;
        }
        file.close();
    }

    // While this device is not directly mounted, it could concievably be mounted via the Device Mapper
    // If so, try to retrieve the mount path...
    TQStringList slaveDeviceList = holdingDevices();
    for ( TQStringList::Iterator slavedevit = slaveDeviceList.begin(); slavedevit != slaveDeviceList.end(); ++slavedevit ) {
        // Try to locate this device path in the TDE device tree
        TDEHardwareDevices *hwdevices = TDEGlobal::hardwareDevices();
        TDEGenericDevice *hwdevice = hwdevices->findBySystemPath(*slavedevit);
        if ((hwdevice) && (hwdevice->type() == TDEGenericDeviceType::Disk)) {
            TDEStorageDevice* sdevice = static_cast<TDEStorageDevice*>(hwdevice);
            return sdevice->mountPath();
        }
    }

    return TQString::null;
}

TQStringVariantMap TDEStorageDevice::mountDevice(TQString mediaName, TDEStorageMountOptions mountOptions) {
    TQStringVariantMap result;

    // Check if device is already mounted
    TQString mountpath = mountPath();
    if (!mountpath.isEmpty()) {
        result["mountPath"] = mountpath;
        result["result"] = true;
        return result;
    }

    TQString devNode = deviceNode();
    devNode.replace("'", "'\\''");
    mediaName.replace("'", "'\\''");

    // Prepare filesystem options for mount
    TQStringList udisksOptions;
    if (mountOptions["ro"] == "true") {
        udisksOptions.append("ro");
    }

    if (mountOptions["atime"] != "true") {
        udisksOptions.append("noatime");
    }

    if (mountOptions["sync"] == "true") {
        udisksOptions.append("sync");
    }

    if ((mountOptions["filesystem"] == "fat") || (mountOptions["filesystem"] == "vfat") ||
        (mountOptions["filesystem"] == "msdos") || (mountOptions["filesystem"] == "umsdos")) {
        if (mountOptions.contains("shortname")) {
            udisksOptions.append(TQString("shortname=%1").arg(mountOptions["shortname"]));
        }
    }

    if ((mountOptions["filesystem"] == "jfs")) {
        if (mountOptions["utf8"] == "true") {
            // udisks/udisks2 for now does not support option iocharset= for jfs
            // udisksOptions.append("iocharset=utf8");
        }
    }

    if ((mountOptions["filesystem"] == "ntfs-3g")) {
        if (mountOptions.contains("locale")) {
            udisksOptions.append(TQString("locale=%1").arg(mountOptions["locale"]));
        }
    }

    if ((mountOptions["filesystem"] == "ext3") || (mountOptions["filesystem"] == "ext4")) {
        if (mountOptions.contains("journaling")) {
            // udisks/udisks2 for now does not support option data= for ext3/ext4
            // udisksOptions.append(TQString("data=%1").arg(mountOptions["journaling"]));
        }
    }

    TQString optionString;
    for (TQStringList::Iterator it = udisksOptions.begin(); it != udisksOptions.end(); ++it) {
        optionString.append(",");
        optionString.append(*it);
    }

    if (!optionString.isEmpty()) {
        optionString.remove(0, 1);
    }

    // Try to use UDISKS v2 via DBUS, if available
    TQString fileSystemType;
    if (mountOptions.contains("filesystem") && !mountOptions["filesystem"].isEmpty()) {
        fileSystemType = mountOptions["filesystem"];
    }

    TQStringVariantMap mountResult = UDisks2MountDrive(devNode, fileSystemType, optionString);
    if (mountResult["result"].toBool()) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["mountPath"] = mountPath();
        result["result"] = true;
        return result;
    }
    else if (mountResult["retcode"].toInt() == -1) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["errStr"] = mountResult["errStr"];
        result["result"] = false;
        return result;
    }

    // The UDISKS v2 DBUS service was either not available or was unusable
    // Try to use UDISKS v1 via DBUS, if available
    mountResult = UDisksMountDrive(devNode, fileSystemType, udisksOptions);
    if (mountResult["result"].toBool()) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["mountPath"] = mountPath();
        result["result"] = true;
        return result;
    }
    else if (mountResult["retcode"].toInt() == -1) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["errStr"] = mountResult["errStr"];
        result["result"] = false;
        return result;
    }

    // The UDISKS v1 DBUS service was either not available or was unusable
    // Use 'udevil' command, if available
    TQString command = TQString::null;
    if (!TDEGlobal::dirs()->findExe("udevil").isEmpty()) {
        if (mountOptions.contains("filesystem") && !mountOptions["filesystem"].isEmpty()) {
            fileSystemType = TQString("-t %1").arg(mountOptions["filesystem"]);
        }
        TQString mountpoint;
        if (mountOptions.contains("mountpoint") && !mountOptions["mountpoint"].isEmpty() &&
              (mountOptions["mountpoint"] != "/media/")) {
            mountpoint = mountOptions["mountpoint"];
            mountpoint.replace("'", "'\\''");
        }
        else {
            mountpoint = TQString("/media/%1").arg(mediaName);
        }
        command = TQString("udevil mount %1 -o '%2' '%3' '%4' 2>&1")
                  .arg(fileSystemType).arg(optionString).arg(devNode).arg(mountpoint);
    }

    // If 'udevil' was not found, use 'pmount' command if available
    if(command.isEmpty()) {
        if (!TDEGlobal::dirs()->findExe("pmount").isEmpty()) {
            // Create dummy password file
            KTempFile passwordFile(TQString::null, "tmp", 0600);
            passwordFile.setAutoDelete(true);

            TQString optionString;
            if (mountOptions["ro"] == "true") {
                optionString.append(" -r");
            }

            if (mountOptions["atime"] != "true") {
                optionString.append(" -A");
            }

            if (mountOptions["utf8"] == "true") {
                optionString.append(" -c utf8");
            }

            if (mountOptions["sync"] == "true") {
                optionString.append(" -s");
            }

            if (mountOptions.contains("filesystem") && !mountOptions["filesystem"].isEmpty()) {
                optionString.append(TQString(" -t %1").arg(mountOptions["filesystem"]));
            }

            if (mountOptions.contains("locale")) {
                optionString.append(TQString(" -c %1").arg(mountOptions["locale"]));
            }

            TQString mountpoint;
            if (mountOptions.contains("mountpoint") && !mountOptions["mountpoint"].isEmpty() &&
                  (mountOptions["mountpoint"] != "/media/")) {
                mountpoint = mountOptions["mountpoint"];
                mountpoint.replace("'", "'\\''");
            }
            else {
                mountpoint = mediaName;
            }

            TQString passFileName = passwordFile.name();
            passFileName.replace("'", "'\\''");

            command = TQString("pmount -p '%1' %2 '%3' '%4' 2>&1")
                      .arg(passFileName).arg(optionString).arg(devNode).arg(mountpoint);
        }
    }

    if(command.isEmpty()) {
        result["errStr"] = i18n("No supported mounting methods were detected on your system");
        result["result"] = false;
        return result;
    }

    FILE *exepipe = popen(command.local8Bit(), "r");
    if (exepipe) {
        TQTextStream* ts = new TQTextStream(exepipe, IO_ReadOnly);
        TQString mount_output = ts->read();
        delete ts;
        int retcode = pclose(exepipe);
        result["errStr"] = mount_output;
        result["retCode"] = retcode;
    }

    // Update internal mount data
    TDEGlobal::hardwareDevices()->processModifiedMounts();
    result["mountPath"] = mountPath();
    result["result"] = !mountPath().isEmpty();
    return result;
}

TQStringVariantMap TDEStorageDevice::mountEncryptedDevice(TQString passphrase, TQString mediaName,
                TDEStorageMountOptions mountOptions) {
    TQStringVariantMap result;

    // Check if device is already mounted
    TQString mountpath = mountPath();
    if (!mountpath.isEmpty()) {
        result["mountPath"] = mountpath;
        result["result"] = true;
        return result;
    }

    // Create dummy password file
    KTempFile passwordFile(TQString::null, "tmp", 0600);
    passwordFile.setAutoDelete(true);
    TQFile* pwFile = passwordFile.file();
    if (!pwFile) {
        result["errStr"] = i18n("Cannot create temporary password file");
        result["result"] = false;
        return result;
    }

    pwFile->writeBlock(passphrase.ascii(), passphrase.length());
    pwFile->flush();

    TQString optionString;
    if (mountOptions["ro"] == "true") {
        optionString.append(" -r");
    }

    if (mountOptions["atime"] != "true") {
        optionString.append(" -A");
    }

    if (mountOptions["utf8"] == "true") {
        optionString.append(" -c utf8");
    }

    if (mountOptions["sync"] == "true") {
        optionString.append(" -s");
    }

    if (mountOptions.contains("filesystem") && !mountOptions["filesystem"].isEmpty()) {
        optionString.append(TQString(" -t %1").arg(mountOptions["filesystem"]));
    }

    if (mountOptions.contains("locale")) {
        optionString.append(TQString(" -c %1").arg(mountOptions["locale"]));
    }

    TQString passFileName = passwordFile.name();
    TQString devNode = deviceNode();
    passFileName.replace("'", "'\\''");
    devNode.replace("'", "'\\''");
    mediaName.replace("'", "'\\''");
    TQString command = TQString("pmount -p '%1' %2 '%3' '%4' 2>&1")
                           .arg(passFileName).arg(optionString).arg(devNode).arg(mediaName);

    FILE *exepipe = popen(command.local8Bit(), "r");
    if (exepipe) {
        TQTextStream* ts = new TQTextStream(exepipe, IO_ReadOnly);
        TQString mount_output = ts->read();
        delete ts;
        int retcode = pclose(exepipe);
        result["errStr"] = mount_output;
        result["retCode"] = retcode;
    }

    // Update internal mount data
    TDEGlobal::hardwareDevices()->processModifiedMounts();
    result["mountPath"] = mountPath();
    result["result"] = !mountPath().isEmpty();
    return result;
}

TQStringVariantMap TDEStorageDevice::unmountDevice() {
    TQStringVariantMap result;

    // Check if device is already unmounted
    TQString mountpoint = mountPath();
    if (mountpoint.isEmpty()) {
        result["result"] = true;
        return result;
    }

    mountpoint.replace("'", "'\\''");
    TQString devNode = deviceNode();

    // Try to use UDISKS v2 via DBUS, if available
    TQStringVariantMap unmountResult = UDisks2UnmountDrive(devNode, TQString::null);
    if (unmountResult["result"].toBool()) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["result"] = true;
        return result;
    }
    else if (unmountResult["retcode"].toInt() == -1) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["errStr"] = unmountResult["errStr"];
        result["result"] = false;
        return result;
    }

    // The UDISKS v2 DBUS service was either not available or was unusable
    // Try to use UDISKS v1 via DBUS, if available
    unmountResult = UDisksUnmountDrive(devNode, TQStringList());
    if (unmountResult["result"].toBool()) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["result"] = true;
        return result;
    }
    else if (unmountResult["retcode"].toInt() == -1) {
        // Update internal mount data
        TDEGlobal::hardwareDevices()->processModifiedMounts();
        result["errStr"] = unmountResult["errStr"];
        result["result"] = false;
        return result;
    }

    // The UDISKS v1 DBUS service was either not available or was unusable
    // Use 'udevil' command, if available
    TQString command = TQString::null;
    if (!TDEGlobal::dirs()->findExe("udevil").isEmpty()) {
        command = TQString("udevil umount '%1' 2>&1").arg(mountpoint);
    }

    // If 'udevil' was not found, use 'pmount' command if available
    if(command.isEmpty() && !TDEGlobal::dirs()->findExe("pumount").isEmpty()) {
        command = TQString("pumount '%1' 2>&1").arg(mountpoint);
    }

    if(command.isEmpty()) {
        result["errStr"] = i18n("No supported unmounting methods were detected on your system");
        result["result"] = false;
        return result;
    }

    FILE *exepipe = popen(command.local8Bit(), "r");
    if (exepipe) {
        TQTextStream* ts = new TQTextStream(exepipe, IO_ReadOnly);
        TQString umount_output = ts->read();
        delete ts;
        int retcode = pclose(exepipe);
        if (retcode == 0) {
            // Update internal mount data
            TDEGlobal::hardwareDevices()->processModifiedMounts();
            result["result"] = true;
            return result;
        }
        else {
            result["errStr"] = umount_output;
            result["retCode"] = retcode;
        }
    }

    // Update internal mount data
    TDEGlobal::hardwareDevices()->processModifiedMounts();
    result["result"] = false;
    return result;
}

TQString TDEStorageDevice::determineFileSystemType(TQString path) {
    TQStringList mountTable;
    TQString prevPath = path;
    dev_t prevDev = 0;
    int pos;
    struct stat directory_info;
    if (path.startsWith("/")) {
        stat(path.local8Bit(), &directory_info);
        prevDev = directory_info.st_dev;
        // Walk the directory tree up to the root, checking for any change in st_dev
        // If a change is found, the previous value of path is the mount point itself
        while (path != "/") {
            pos = path.findRev("/", -1, true);
            if (pos < 0) {
                break;
            }
            path = path.mid(0, pos);
            if (path == "") {
                path = "/";
            }
            stat(path.local8Bit(), &directory_info);
            if (directory_info.st_dev != prevDev) {
                break;
            }
            prevPath = path;
            prevDev = directory_info.st_dev;
        }
    }

    // Read in mount table
    mountTable.clear();
    TQFile file( "/proc/mounts" );
    if ( file.open( IO_ReadOnly ) ) {
        TQTextStream stream( &file );
        while ( !stream.atEnd() ) {
            mountTable.append(stream.readLine());
        }
        file.close();
    }

    // Parse mount table
    TQStringList::Iterator it;
    for ( it = mountTable.begin(); it != mountTable.end(); ++it ) {
        TQStringList mountInfo = TQStringList::split(" ", (*it), true);
        if ((*mountInfo.at(1)) == prevPath) {
            return (*mountInfo.at(2));
        }
    }

    // Unknown file system type
    return TQString::null;
}

#include "tdestoragedevice.moc"