diff --git a/src/fs/lvm2_pv.cpp b/src/fs/lvm2_pv.cpp index 71a1b9e..1e095b0 100644 --- a/src/fs/lvm2_pv.cpp +++ b/src/fs/lvm2_pv.cpp @@ -1,270 +1,255 @@ /************************************************************************* * Copyright (C) 2012 by Volker Lanz * * Copyright (C) 2016 by Andrius Štikonas * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of the GNU General Public License as * * published by the Free Software Foundation; either version 3 of * * the License, or (at your option) any later version. * * * * This program 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 General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program. If not, see .* *************************************************************************/ #include "fs/lvm2_pv.h" #include "util/externalcommand.h" #include "util/capacity.h" #include #include #include namespace FS { FileSystem::CommandSupportType lvm2_pv::m_GetUsed = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_GetLabel = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Create = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Grow = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Shrink = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Move = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Check = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Copy = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_Backup = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_SetLabel = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_UpdateUUID = FileSystem::cmdSupportNone; FileSystem::CommandSupportType lvm2_pv::m_GetUUID = FileSystem::cmdSupportNone; lvm2_pv::lvm2_pv(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label) : FileSystem(firstsector, lastsector, sectorsused, label, FileSystem::Lvm2_PV) { } void lvm2_pv::init() { CommandSupportType lvmFound = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone; m_Create = lvmFound; m_Check = lvmFound; m_Grow = lvmFound; m_Shrink = lvmFound; m_UpdateUUID = lvmFound; m_GetUsed = lvmFound; m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone; m_GetLabel = cmdSupportCore; m_Backup = cmdSupportCore; m_GetUUID = cmdSupportCore; m_GetLabel = cmdSupportNone; m_Copy = cmdSupportNone; // Copying PV can confuse LVM } bool lvm2_pv::supportToolFound() const { return m_GetUsed != cmdSupportNone && // m_GetLabel != cmdSupportNone && // m_SetLabel != cmdSupportNone && m_Create != cmdSupportNone && m_Check != cmdSupportNone && m_UpdateUUID != cmdSupportNone && m_Grow != cmdSupportNone && m_Shrink != cmdSupportNone && // m_Copy != cmdSupportNone && m_Move != cmdSupportNone && m_Backup != cmdSupportNone && m_GetUUID != cmdSupportNone; } FileSystem::SupportTool lvm2_pv::supportToolName() const { return SupportTool(QStringLiteral("lvm2"), QUrl(QStringLiteral("http://sourceware.org/lvm2/"))); } qint64 lvm2_pv::maxCapacity() const { return Capacity::unitFactor(Capacity::Byte, Capacity::EiB); } qint64 lvm2_pv::readUsedCapacity(const QString& deviceNode) const { QString val = getpvField(QStringLiteral("pv_used"), deviceNode); return val.isEmpty() ? -1 : val.toLongLong(); } bool lvm2_pv::check(Report& report, const QString& deviceNode) const { ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvck"), QStringLiteral("--verbose"), deviceNode }); return cmd.run(-1) && cmd.exitCode() == 0; } bool lvm2_pv::create(Report& report, const QString& deviceNode) const { ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvcreate"), deviceNode }); return cmd.run(-1) && cmd.exitCode() == 0; } bool lvm2_pv::remove(Report& report, const QString& deviceNode) const { // TODO: check if PV is a member of an exported VG ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvremove"), QStringLiteral("--force"), QStringLiteral("--force"), QStringLiteral("--yes"), deviceNode }); return cmd.run(-1) && cmd.exitCode() == 0; } bool lvm2_pv::resize(Report& report, const QString& deviceNode, qint64 length) const { // TODO: check if the it is legal to resize const QString len = QString::number(length / 512) + QStringLiteral("s"); ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvresize"), QStringLiteral("--yes"), QStringLiteral("--setphysicalvolumesize"), len, deviceNode }); return cmd.run(-1) && cmd.exitCode() == 0; } bool lvm2_pv::updateUUID(Report& report, const QString& deviceNode) const { ExternalCommand cmd(report, QStringLiteral("lvm"), { QStringLiteral("pvchange"), QStringLiteral("--uuid"), deviceNode }); return cmd.run(-1) && cmd.exitCode() == 0; } QString lvm2_pv::readUUID(const QString& deviceNode) const { return getpvField(QStringLiteral("pv_uuid"), deviceNode); } bool lvm2_pv::mount(Report& report, const QString& deviceNode, const QString& mountPoint) { Q_UNUSED(report); Q_UNUSED(deviceNode); Q_UNUSED(mountPoint); return false; } bool lvm2_pv::unmount(Report& report, const QString& deviceNode) { Q_UNUSED(deviceNode); Q_UNUSED(report); return false; } bool lvm2_pv::canMount(const QString & deviceNode, const QString & mountPoint) const { Q_UNUSED(mountPoint); QString rval = getpvField(QStringLiteral("pv_in_use"), deviceNode); // this field return "used" when in use otherwise empty string if (rval.isEmpty()) { return true; } return false; } bool lvm2_pv::canUnmount(const QString& deviceNode) const { QString rval = getpvField(QStringLiteral("pv_in_use"), deviceNode); if (rval.isEmpty()) { return false; } return true; } qint64 lvm2_pv::getTotalPE(const QString& deviceNode) const { QString val = getpvField(QStringLiteral("pv_pe_count"), deviceNode); return val.isEmpty() ? -1 : val.toLongLong(); } qint64 lvm2_pv::getFreePE(const QString& deviceNode) const { return getTotalPE(deviceNode) - getAllocatedPE(deviceNode); } qint64 lvm2_pv::getAllocatedPE(const QString& deviceNode) const { QString val = getpvField(QStringLiteral("pv_pe_alloc_count"), deviceNode); return val.isEmpty() ? -1 : val.toLongLong(); } qint64 lvm2_pv::getPVSize(const QString& deviceNode) const { QString val = getpvField(QStringLiteral("pv_size"), deviceNode); return val.isEmpty() ? -1 : val.toLongLong(); } qint64 lvm2_pv::getPESize(const QString& deviceNode) const { QString val = getpvField(QStringLiteral("vg_extent_size"), deviceNode); return val.isEmpty() ? -1 : val.toLongLong(); } QString lvm2_pv::getpvField(const QString& fieldname, const QString& deviceNode) { QStringList args = { QStringLiteral("pvs"), QStringLiteral("--foreign"), QStringLiteral("--readonly"), QStringLiteral("--noheadings"), QStringLiteral("--units"), QStringLiteral("B"), QStringLiteral("--nosuffix"), QStringLiteral("--options"), fieldname }; if (!deviceNode.isEmpty()) { args << deviceNode; } ExternalCommand cmd(QStringLiteral("lvm"), args); if (cmd.run(-1) && cmd.exitCode() == 0) { return cmd.output().trimmed(); } return QString(); } QString lvm2_pv::getVGName(const QString& deviceNode) { return getpvField(QStringLiteral("vg_name"), deviceNode); } QStringList lvm2_pv::getFreePV() { QStringList rlist; QString output = getpvField(QStringLiteral("pv_name")); QStringList pvList = output.split(QStringLiteral("\n"), QString::SkipEmptyParts); foreach (QString pvnode, pvList) { if (!isUsed(pvnode.trimmed())) { rlist.append(pvnode.trimmed()); } } return rlist; } -QStringList lvm2_pv::getUsedPV(const QString& vgname) -{ - QStringList rlist; - - QString output = getpvField(QStringLiteral("pv_name"), vgname); - QStringList pvList = output.split(QStringLiteral("\n"), QString::SkipEmptyParts); - foreach (QString pvnode, pvList) { - if (isUsed(pvnode.trimmed())) { - rlist.append(pvnode.trimmed()); - } - } - - return rlist; -} - bool lvm2_pv::isUsed(const QString& deviceNode) { QString output = getpvField(QStringLiteral("pv_in_use"), deviceNode.trimmed()); if (output.trimmed() == QStringLiteral("used")) { return true; } return false; } } diff --git a/src/fs/lvm2_pv.h b/src/fs/lvm2_pv.h index 293704a..982ac79 100644 --- a/src/fs/lvm2_pv.h +++ b/src/fs/lvm2_pv.h @@ -1,133 +1,132 @@ /************************************************************************* * Copyright (C) 2012 by Volker Lanz * * Copyright (C) 2016 by Andrius Štikonas * * * * This program is free software; you can redistribute it and/or * * modify it under the terms of the GNU General Public License as * * published by the Free Software Foundation; either version 3 of * * the License, or (at your option) any later version. * * * * This program 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 General Public License for more details. * * * * You should have received a copy of the GNU General Public License * * along with this program. If not, see .* *************************************************************************/ #if !defined(LVM2_PV__H) #define LVM2_PV__H #include "util/libpartitionmanagerexport.h" #include "fs/filesystem.h" #include class Report; class QString; namespace FS { /** LVM2 physical volume. @author Andrius Štikonas */ class LIBKPMCORE_EXPORT lvm2_pv : public FileSystem { public: lvm2_pv(qint64 firstsector, qint64 lastsector, qint64 sectorsused, const QString& label); public: void init() override; qint64 readUsedCapacity(const QString& deviceNode) const override; bool check(Report& report, const QString& deviceNode) const override; bool create(Report& report, const QString& deviceNode) const override; bool remove(Report& report, const QString& deviceNode) const override; bool resize(Report& report, const QString& deviceNode, qint64 length) const override; // bool writeLabel(Report& report, const QString& deviceNode, const QString& newLabel) override; bool updateUUID(Report& report, const QString& deviceNode) const override; QString readUUID(const QString& deviceNode) const override; bool canMount(const QString & deviceNode, const QString & mountPoint) const override; bool canUnmount(const QString& deviceNode) const override; bool mount(Report& report, const QString& deviceNode, const QString& mountPoint) override; // mountPoint == VG name bool unmount(Report& report, const QString& deviceNode) override; CommandSupportType supportGetUsed() const override { return m_GetUsed; } CommandSupportType supportGetLabel() const override { return m_GetLabel; } CommandSupportType supportCreate() const override { return m_Create; } CommandSupportType supportGrow() const override { return m_Grow; } CommandSupportType supportShrink() const override { return m_Shrink; } CommandSupportType supportMove() const override { return m_Move; } CommandSupportType supportCheck() const override { return m_Check; } CommandSupportType supportCopy() const override { return m_Copy; } CommandSupportType supportBackup() const override { return m_Backup; } CommandSupportType supportSetLabel() const override { return m_SetLabel; } CommandSupportType supportUpdateUUID() const override { return m_UpdateUUID; } CommandSupportType supportGetUUID() const override { return m_GetUUID; } qint64 maxCapacity() const override; SupportTool supportToolName() const override; bool supportToolFound() const override; qint64 getTotalPE(const QString& deviceNode) const; qint64 getFreePE(const QString& deviceNode) const; qint64 getAllocatedPE(const QString& deviceNode) const; qint64 getPESize(const QString& deviceNode) const; // return PE size in bytes qint64 getPVSize(const QString& deviceNode) const; // return PV size in bytes static bool isUsed(const QString& pvNode); static QString getVGName(const QString& deviceNode); static QString getpvField(const QString& fieldname, const QString& deviceNode = QString()); static QStringList getFreePV(); - static QStringList getUsedPV(const QString& vgname = QString()); public: static CommandSupportType m_GetUsed; static CommandSupportType m_GetLabel; static CommandSupportType m_Create; static CommandSupportType m_Grow; static CommandSupportType m_Shrink; static CommandSupportType m_Move; static CommandSupportType m_Check; static CommandSupportType m_Copy; static CommandSupportType m_Backup; static CommandSupportType m_SetLabel; static CommandSupportType m_UpdateUUID; static CommandSupportType m_GetUUID; }; } #endif