diff --git a/src/solid/devices/backends/fstab/fstabhandling.cpp b/src/solid/devices/backends/fstab/fstabhandling.cpp index d4a0283..1f89c25 100644 --- a/src/solid/devices/backends/fstab/fstabhandling.cpp +++ b/src/solid/devices/backends/fstab/fstabhandling.cpp @@ -1,355 +1,355 @@ /* Copyright 2006-2010 Kevin Ottens Copyright 2010 Mario Bensi This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) version 3, or any later version accepted by the membership of KDE e.V. (or its successor approved by the membership of KDE e.V.), which shall act as a proxy defined in Section 6 of version 3 of the license. 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library. If not, see . */ #include "fstabhandling.h" #include #include #include #include +#include #include #include #include #if HAVE_SYS_MNTTAB_H #include #endif #if HAVE_MNTENT_H #include #elif defined(HAVE_SYS_MNTENT_H) #include #endif // This is the *BSD branch #if HAVE_SYS_MOUNT_H #if HAVE_SYS_TYPES_H #include #endif #if HAVE_SYS_PARAM_H #include #endif #include -#include #endif #ifdef Q_OS_SOLARIS #define FSTAB "/etc/vfstab" #else #define FSTAB "/etc/fstab" #endif #if ! HAVE_GETMNTINFO # ifdef _PATH_MOUNTED // On some Linux, MNTTAB points to /etc/fstab ! # undef MNTTAB # define MNTTAB _PATH_MOUNTED # else # ifndef MNTTAB # ifdef MTAB_FILE # define MNTTAB MTAB_FILE # else # define MNTTAB "/etc/mnttab" # endif # endif # endif #endif // There are (at least) four kind of APIs: // setmntent + getmntent + struct mntent (linux...) // getmntent + struct mnttab // getmntinfo + struct statfs&flags (BSD 4.4 and friends) // getfsent + char* (BSD 4.3 and friends) #if HAVE_SETMNTENT #define SETMNTENT setmntent #define ENDMNTENT endmntent #define STRUCT_MNTENT struct mntent * #define STRUCT_SETMNTENT FILE * #define GETMNTENT(file, var) ((var = getmntent(file)) != nullptr) #define MOUNTPOINT(var) var->mnt_dir #define MOUNTTYPE(var) var->mnt_type #define MOUNTOPTIONS(var) var->mnt_opts #define FSNAME(var) var->mnt_fsname #else #define SETMNTENT fopen #define ENDMNTENT fclose #define STRUCT_MNTENT struct mnttab #define STRUCT_SETMNTENT FILE * #define GETMNTENT(file, var) (getmntent(file, &var) == nullptr) #define MOUNTPOINT(var) var.mnt_mountp #define MOUNTTYPE(var) var.mnt_fstype #define MOUNTOPTIONS(var) var.mnt_mntopts #define FSNAME(var) var.mnt_special #endif Q_GLOBAL_STATIC(QThreadStorage, globalFstabCache) Solid::Backends::Fstab::FstabHandling::FstabHandling() : m_fstabCacheValid(false), m_mtabCacheValid(false) { } bool _k_isFstabNetworkFileSystem(const QString &fstype, const QString &devName) { if (fstype == "nfs" || fstype == "nfs4" || fstype == "smbfs" || fstype == "cifs" || devName.startsWith(QLatin1String("//"))) { return true; } return false; } bool _k_isFstabSupportedLocalFileSystem(const QString &fstype) { if (fstype == "fuse.encfs" || fstype == "fuse.cryfs" || fstype == "overlay") { return true; } return false; } QString _k_deviceNameForMountpoint(const QString &source, const QString &fstype, const QString &mountpoint) { if (fstype.startsWith("fuse.") || fstype == QLatin1String("overlay")) { return fstype + mountpoint; } return source; } void Solid::Backends::Fstab::FstabHandling::_k_updateFstabMountPointsCache() { if (globalFstabCache->localData().m_fstabCacheValid) { return; } globalFstabCache->localData().m_fstabCache.clear(); globalFstabCache->localData().m_fstabOptionsCache.clear(); #if HAVE_SETMNTENT FILE *fstab; if ((fstab = setmntent(FSTAB, "r")) == nullptr) { return; } struct mntent *fe; while ((fe = getmntent(fstab)) != nullptr) { const QString fsname = QFile::decodeName(fe->mnt_fsname); const QString fstype = QFile::decodeName(fe->mnt_type); if (_k_isFstabNetworkFileSystem(fstype, fsname) || _k_isFstabSupportedLocalFileSystem(fstype)) { const QString mountpoint = QFile::decodeName(fe->mnt_dir); const QString device = _k_deviceNameForMountpoint(fsname, fstype, mountpoint); QStringList options = QFile::decodeName(fe->mnt_opts).split(QLatin1Char(',')); globalFstabCache->localData().m_fstabCache.insert(device, mountpoint); globalFstabCache->localData().m_fstabFstypeCache.insert(device, fstype); while (!options.isEmpty()) { globalFstabCache->localData().m_fstabOptionsCache.insert(device, options.takeFirst()); } } } endmntent(fstab); #else QFile fstab(FSTAB); if (!fstab.open(QIODevice::ReadOnly)) { return; } QTextStream stream(&fstab); QString line; while (!stream.atEnd()) { line = stream.readLine().simplified(); if (line.isEmpty() || line.startsWith('#')) { continue; } // not empty or commented out by '#' const QStringList items = line.split(' '); #ifdef Q_OS_SOLARIS if (items.count() < 5) { continue; } #else if (items.count() < 4) { continue; } #endif //prevent accessing a blocking directory if (_k_isFstabNetworkFileSystem(items.at(2), items.at(0)) || _k_isFstabSupportedLocalFileSystem(items.at(2))) { const QString device = items.at(0); const QString mountpoint = items.at(1); globalFstabCache->localData().m_fstabCache.insert(device, mountpoint); } } fstab.close(); #endif globalFstabCache->localData().m_fstabCacheValid = true; } QStringList Solid::Backends::Fstab::FstabHandling::deviceList() { _k_updateFstabMountPointsCache(); _k_updateMtabMountPointsCache(); QStringList devices = globalFstabCache->localData().m_fstabCache.keys(); devices += globalFstabCache->localData().m_mtabCache.keys(); devices.removeDuplicates(); return devices; } QStringList Solid::Backends::Fstab::FstabHandling::mountPoints(const QString &device) { _k_updateFstabMountPointsCache(); _k_updateMtabMountPointsCache(); QStringList mountpoints = globalFstabCache->localData().m_fstabCache.values(device); mountpoints += globalFstabCache->localData().m_mtabCache.values(device); mountpoints.removeDuplicates(); return mountpoints; } QStringList Solid::Backends::Fstab::FstabHandling::options(const QString &device) { _k_updateFstabMountPointsCache(); QStringList options = globalFstabCache->localData().m_fstabOptionsCache.values(device); return options; } QString Solid::Backends::Fstab::FstabHandling::fstype(const QString &device) { _k_updateFstabMountPointsCache(); return globalFstabCache->localData().m_fstabFstypeCache.value(device); } bool Solid::Backends::Fstab::FstabHandling::callSystemCommand(const QString &commandName, const QStringList &args, const QObject *receiver, std::function callback) { QStringList env = QProcess::systemEnvironment(); env.replaceInStrings(QRegExp("^PATH=(.*)", Qt::CaseInsensitive), "PATH=/sbin:/bin:/usr/sbin/:/usr/bin"); QProcess *process = new QProcess(); QObject::connect(process, static_cast(&QProcess::finished), receiver, [process, callback](int exitCode, QProcess::ExitStatus exitStatus) { Q_UNUSED(exitCode); Q_UNUSED(exitStatus); callback(process); process->deleteLater(); }); process->setEnvironment(env); process->start(commandName, args); if (process->waitForStarted()) { return true; } delete process; return false; } void Solid::Backends::Fstab::FstabHandling::_k_updateMtabMountPointsCache() { if (globalFstabCache->localData().m_mtabCacheValid) { return; } globalFstabCache->localData().m_mtabCache.clear(); #if HAVE_GETMNTINFO #if GETMNTINFO_USES_STATVFS struct statvfs *mounted; #else struct statfs *mounted; #endif int num_fs = getmntinfo(&mounted, MNT_NOWAIT); for (int i = 0; i < num_fs; i++) { QString type = QFile::decodeName(mounted[i].f_fstypename); if (_k_isFstabNetworkFileSystem(type, QString()) || _k_isFstabSupportedLocalFileSystem(type)) { const QString fsname = QFile::decodeName(mounted[i].f_mntfromname); const QString mountpoint = QFile::decodeName(mounted[i].f_mntonname); const QString device = _k_deviceNameForMountpoint(fsname, type, mountpoint); globalFstabCache->localData().m_mtabCache.insert(device, mountpoint); globalFstabCache->localData().m_fstabFstypeCache.insert(device, type); } } #else STRUCT_SETMNTENT mnttab; if ((mnttab = SETMNTENT(MNTTAB, "r")) == nullptr) { return; } STRUCT_MNTENT fe; while (GETMNTENT(mnttab, fe)) { QString type = QFile::decodeName(MOUNTTYPE(fe)); if (_k_isFstabNetworkFileSystem(type, QString()) || _k_isFstabSupportedLocalFileSystem(type)) { const QString fsname = QFile::decodeName(FSNAME(fe)); const QString mountpoint = QFile::decodeName(MOUNTPOINT(fe)); const QString device = _k_deviceNameForMountpoint(fsname, type, mountpoint); globalFstabCache->localData().m_mtabCache.insert(device, mountpoint); globalFstabCache->localData().m_fstabFstypeCache.insert(device, type); } } ENDMNTENT(mnttab); #endif globalFstabCache->localData().m_mtabCacheValid = true; } QStringList Solid::Backends::Fstab::FstabHandling::currentMountPoints(const QString &device) { _k_updateMtabMountPointsCache(); return globalFstabCache->localData().m_mtabCache.values(device); } void Solid::Backends::Fstab::FstabHandling::flushMtabCache() { globalFstabCache->localData().m_mtabCacheValid = false; } void Solid::Backends::Fstab::FstabHandling::flushFstabCache() { globalFstabCache->localData().m_fstabCacheValid = false; }