/*
* DBus UDisk AddDevice handler
*/
void MediaMonitorUnix::deviceAdded( QDBusObjectPath o)
{
LOG(VB_MEDIA, LOG_INFO, LOC + ":deviceAdded " + o.path());
// Don't add devices with partition tables, just the partitions
if (!DeviceProperty(o, "DeviceIsPartitionTable").toBool())
{
QString dev = DeviceProperty(o, "DeviceFile").toString();
MythMediaDevice* pDevice;
if (DeviceProperty(o, "DeviceIsRemovable").toBool())
pDevice = MythCDROM::get(this, dev.toLatin1(), false, m_AllowEject);
else
pDevice = MythHDD::Get(this, dev.toLatin1(), false, false);
if (pDevice && !AddDevice(pDevice))
pDevice->deleteLater();
}
}
/**
* \brief Creates MythMedia instances for sysfs removable media devices.
*
* Block devices are represented as directories in sysfs with directories
* for each partition underneath the parent device directory.
*
* This function recursively calls itself to find all partitions on a block
* device and creates a MythHDD instance for each partition found. If no
* partitions are found and the device is a CD or DVD device a MythCDROM
* instance is created. Otherwise a MythHDD instance is created for the
* entire block device.
*
* \param dev path to sysfs block device.
* \param checkPartitions check for partitions on block device.
* \return true if MythMedia instances are created.
*/
bool MediaMonitorUnix::FindPartitions(const QString &dev, bool checkPartitions)
{
LOG(VB_MEDIA, LOG_DEBUG,
LOC + ":FindPartitions(" + dev +
QString(",%1").arg(checkPartitions ? " true" : " false" ) + ")");
MythMediaDevice* pDevice = NULL;
if (checkPartitions)
{
// check for partitions
QDir sysfs(dev);
sysfs.setFilter(QDir::Dirs | QDir::NoDotAndDotDot);
bool found_partitions = false;
QStringList parts = sysfs.entryList();
for (QStringList::iterator pit = parts.begin();
pit != parts.end(); ++pit)
{
// skip some sysfs dirs that are _not_ sub-partitions
if (*pit == "device" || *pit == "holders" || *pit == "queue"
|| *pit == "slaves" || *pit == "subsystem"
|| *pit == "bdi" || *pit == "power")
continue;
found_partitions |= FindPartitions(
sysfs.absoluteFilePath(*pit), false);
}
// no partitions on block device, use main device
if (!found_partitions)
found_partitions |= FindPartitions(sysfs.absolutePath(), false);
return found_partitions;
}
QString device_file = GetDeviceFile(dev);
if (device_file.isEmpty())
return false;
QStringList cdroms = GetCDROMBlockDevices();
if (cdroms.contains(dev.section('/', -1)))
{
// found cdrom device
pDevice = MythCDROM::get(
this, device_file.toLatin1().constData(), false, m_AllowEject);
}
else
{
// found block or partition device
pDevice = MythHDD::Get(
this, device_file.toLatin1().constData(), false, false);
}
if (AddDevice(pDevice))
return true;
if (pDevice)
pDevice->deleteLater();
return false;
}
// Given a fstab entry to a media device determine what type of device it is
bool MediaMonitorUnix::AddDevice(struct fstab * mep)
{
if (!mep)
return false;
#ifndef Q_OS_ANDROID
QString devicePath( mep->fs_spec );
#if 0
LOG(VB_GENERAL, LOG_DEBUG, "AddDevice - " + devicePath);
#endif
MythMediaDevice* pDevice = NULL;
struct stat sbuf;
bool is_supermount = false;
bool is_cdrom = false;
if (stat(mep->fs_spec, &sbuf) < 0)
return false;
// Can it be mounted?
if ( ! ( ((strstr(mep->fs_mntops, "owner") &&
(sbuf.st_mode & S_IRUSR)) || strstr(mep->fs_mntops, "user")) &&
(strstr(mep->fs_vfstype, MNTTYPE_ISO9660) ||
strstr(mep->fs_vfstype, MNTTYPE_UDF) ||
strstr(mep->fs_vfstype, MNTTYPE_AUTO)) ) )
{
if (strstr(mep->fs_mntops, MNTTYPE_ISO9660) &&
strstr(mep->fs_vfstype, MNTTYPE_SUPERMOUNT))
{
is_supermount = true;
}
else
{
return false;
}
}
if (strstr(mep->fs_mntops, MNTTYPE_ISO9660) ||
strstr(mep->fs_vfstype, MNTTYPE_ISO9660) ||
strstr(mep->fs_vfstype, MNTTYPE_UDF) ||
strstr(mep->fs_vfstype, MNTTYPE_AUTO))
{
is_cdrom = true;
#if 0
LOG(VB_GENERAL, LOG_DEBUG, "Device is a CDROM");
#endif
}
if (!is_supermount)
{
if (is_cdrom)
pDevice = MythCDROM::get(this, mep->fs_spec,
is_supermount, m_AllowEject);
}
else
{
char *dev = 0;
int len = 0;
dev = strstr(mep->fs_mntops, SUPER_OPT_DEV);
if (dev == NULL)
return false;
dev += sizeof(SUPER_OPT_DEV)-1;
while (dev[len] != ',' && dev[len] != ' ' && dev[len] != 0)
len++;
if (dev[len] != 0)
{
char devstr[256];
strncpy(devstr, dev, len);
devstr[len] = 0;
if (is_cdrom)
pDevice = MythCDROM::get(this, devstr,
is_supermount, m_AllowEject);
}
else
return false;
}
if (pDevice)
{
pDevice->setMountPath(mep->fs_file);
if (pDevice->testMedia() == MEDIAERR_OK)
{
if (AddDevice(pDevice))
return true;
}
pDevice->deleteLater();
}
#endif
return false;
}
/**
* \brief Search /sys/block for valid removable media devices.
*
* This function creates MediaDevice instances for valid removable media
* devices found under the /sys/block filesystem in Linux. CD and DVD
* devices are created as MythCDROM instances. MythHDD instances will be
* created for each partition on removable hard disk devices, if they exist.
* Otherwise a single MythHDD instance will be created for the entire disc.
*
* NOTE: Floppy disks are ignored.
*/
bool MediaMonitorUnix::CheckMountable(void)
{
#if CONFIG_QTDBUS
for (int i = 0; i < 10; ++i, usleep(500000))
{
// Connect to UDisks. This can sometimes fail if mythfrontend
// is started during system init
QDBusInterface iface(UDISKS_SVC, UDISKS_PATH, UDISKS_IFACE,
QDBusConnection::systemBus() );
if (!iface.isValid())
{
LOG(VB_GENERAL, LOG_ALERT, LOC +
"CheckMountable: DBus interface error: " +
iface.lastError().message() );
continue;
}
// Enumerate devices
typedef QList<QDBusObjectPath> QDBusObjectPathList;
QDBusReply<QDBusObjectPathList> reply = iface.call("EnumerateDevices");
if (!reply.isValid())
{
LOG(VB_GENERAL, LOG_ALERT, LOC +
"CheckMountable DBus EnumerateDevices error: " +
reply.error().message() );
continue;
}
// Listen on DBus for UDisk add/remove device messages
(void)QDBusConnection::systemBus().connect(
UDISKS_SVC, UDISKS_PATH, UDISKS_IFACE, UDISKS_DEVADD, UDISKS_DEVSIG,
this, SLOT(deviceAdded(QDBusObjectPath)) );
(void)QDBusConnection::systemBus().connect(
UDISKS_SVC, UDISKS_PATH, UDISKS_IFACE, UDISKS_DEVRMV, UDISKS_DEVSIG,
this, SLOT(deviceRemoved(QDBusObjectPath)) );
// Parse the returned device array
const QDBusObjectPathList& list(reply.value());
for (QDBusObjectPathList::const_iterator it = list.begin();
it != list.end(); ++it)
{
if (!DeviceProperty(*it, "DeviceIsSystemInternal").toBool() &&
!DeviceProperty(*it, "DeviceIsPartitionTable").toBool() )
{
QString dev = DeviceProperty(*it, "DeviceFile").toString();
// ignore floppies, too slow
if (dev.startsWith("/dev/fd"))
continue;
MythMediaDevice* pDevice;
if (DeviceProperty(*it, "DeviceIsRemovable").toBool())
pDevice = MythCDROM::get(this, dev.toLatin1(), false, m_AllowEject);
else
pDevice = MythHDD::Get(this, dev.toLatin1(), false, false);
if (pDevice && !AddDevice(pDevice))
pDevice->deleteLater();
}
}
// Success
return true;
}
// Timed out
return false;
#elif defined linux
// NB needs script in /etc/udev/rules.d
mkfifo(kUDEV_FIFO, S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH);
m_fifo = open(kUDEV_FIFO, O_RDONLY | O_NONBLOCK);
QDir sysfs("/sys/block");
sysfs.setFilter(QDir::Dirs | QDir::NoDotAndDotDot);
QStringList devices = sysfs.entryList();
for (QStringList::iterator it = devices.begin(); it != devices.end(); ++it)
{
// ignore floppies, too slow
if ((*it).startsWith("fd"))
continue;
sysfs.cd(*it);
QString path = sysfs.absolutePath();
if (CheckRemovable(path))
FindPartitions(path, true);
sysfs.cdUp();
}
return true;
#else // linux
return false;
#endif
}
