/************************************************************************* * 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 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() { m_Create = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone; m_Check = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone; m_Grow = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone; m_Shrink = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone; m_GetLabel = cmdSupportCore; m_UpdateUUID = findExternal(QStringLiteral("lvm")) ? cmdSupportFileSystem : cmdSupportNone; m_Copy = cmdSupportNone; // Copying PV can confuse LVM m_Move = (m_Check != cmdSupportNone) ? cmdSupportCore : cmdSupportNone; m_GetLabel = cmdSupportNone; m_Backup = cmdSupportCore; m_GetUUID = cmdSupportCore; } 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); } 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("--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::getVGName(const QString& deviceNode) //PV node { ExternalCommand cmd( QStringLiteral("lvm"), { QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode }); if (cmd.run(-1) && cmd.exitCode() == 0) { QRegularExpression re(QStringLiteral("VG Name\\h+(\\w+)")); QRegularExpressionMatch vgName = re.match(cmd.output()); if (vgName.hasMatch()) return vgName.captured(1); } return QString(); } qint64 lvm2_pv::getTotalPE(const QString& deviceNode) const { ExternalCommand cmd( QStringLiteral("lvm"), { QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode }); if (cmd.run(-1) && cmd.exitCode() == 0) { QRegularExpression re(QStringLiteral("Total PE\\h+(\\w+)")); QRegularExpressionMatch totalPE = re.match(cmd.output()); if (totalPE.hasMatch()) return totalPE.captured(1).toLongLong(); } return -1; } qint64 lvm2_pv::getFreePE(const QString& deviceNode) const { ExternalCommand cmd( QStringLiteral("lvm"), { QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode }); if (cmd.run(-1) && cmd.exitCode() == 0) { QRegularExpression re(QStringLiteral("Free PE\\h+(\\w+)")); QRegularExpressionMatch freePE = re.match(cmd.output()); if (freePE.hasMatch()) return freePE.captured(1).toLongLong(); } return -1; } qint64 lvm2_pv::getAllocatedPE(const QString& deviceNode) const { ExternalCommand cmd( QStringLiteral("lvm"), { QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), deviceNode }); if (cmd.run(-1) && cmd.exitCode() == 0) { QRegularExpression re(QStringLiteral("Allocated PE\\h+(\\d+)")); QRegularExpressionMatch allocatedPE = re.match(cmd.output()); if (allocatedPE.hasMatch()) return allocatedPE.captured(1).toLongLong(); } return -1; } qint64 lvm2_pv::getPVSize(const QString& deviceNode) const { ExternalCommand cmd( QStringLiteral("lvm"), { QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), QStringLiteral("--units"), QStringLiteral("B"), deviceNode }); if (cmd.run(-1) && cmd.exitCode() == 0) { QRegularExpression re(QStringLiteral("PV Size\\h+(\\d+)")); QRegularExpressionMatch PVSize = re.match(cmd.output()); if (PVSize.hasMatch()) return PVSize.captured(1).toLongLong(); } return -1; } qint64 lvm2_pv::getPESize(const QString& deviceNode) const { ExternalCommand cmd( QStringLiteral("lvm"), { QStringLiteral("pvdisplay"), QStringLiteral("--verbose"), QStringLiteral("--units"), QStringLiteral("B"), deviceNode }); if (cmd.run(-1) && cmd.exitCode() == 0) { QRegularExpression re(QStringLiteral("PE Size\\h+(\\d+)")); QRegularExpressionMatch PESize = re.match(cmd.output()); if (PESize.hasMatch()) return PESize.captured(1).toLongLong(); } return -1; } }