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/*************************************************************************
* Copyright ( C ) 2012 by Volker Lanz < vl @ fidra . de > *
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* Copyright ( C ) 2016 by Andrius Š tikonas < andrius @ stikonas . eu > *
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* *
* 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 < http : //www.gnu.org/licenses/>.*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# include "fs/btrfs.h"
# include "util/externalcommand.h"
# include "util/capacity.h"
# include "util/report.h"
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# include <QRegularExpression>
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# include <QString>
# include <QTemporaryDir>
# include <KLocalizedString>
namespace FS
{
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FileSystem : : CommandSupportType btrfs : : m_GetUsed = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_GetLabel = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Create = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Grow = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Shrink = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Move = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Check = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Copy = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_Backup = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_SetLabel = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_UpdateUUID = FileSystem : : cmdSupportNone ;
FileSystem : : CommandSupportType btrfs : : m_GetUUID = FileSystem : : cmdSupportNone ;
btrfs : : btrfs ( qint64 firstsector , qint64 lastsector , qint64 sectorsused , const QString & label ) :
FileSystem ( firstsector , lastsector , sectorsused , label , FileSystem : : Btrfs )
{
}
void btrfs : : init ( )
{
m_Create = findExternal ( QStringLiteral ( " mkfs.btrfs " ) ) ? cmdSupportFileSystem : cmdSupportNone ;
m_Check = findExternal ( QStringLiteral ( " btrfsck " ) , QStringList ( ) , 1 ) ? cmdSupportFileSystem : cmdSupportNone ;
m_Grow = ( m_Check ! = cmdSupportNone & & findExternal ( QStringLiteral ( " btrfs " ) ) ) ? cmdSupportFileSystem : cmdSupportNone ;
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m_GetUsed = findExternal ( QStringLiteral ( " btrfs " ) ) ? cmdSupportFileSystem : cmdSupportNone ;
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m_Shrink = ( m_Grow ! = cmdSupportNone & & m_GetUsed ! = cmdSupportNone ) ? cmdSupportFileSystem : cmdSupportNone ;
m_SetLabel = findExternal ( QStringLiteral ( " btrfs " ) ) ? cmdSupportFileSystem : cmdSupportNone ;
m_UpdateUUID = cmdSupportNone ;
m_Copy = ( m_Check ! = cmdSupportNone ) ? cmdSupportCore : cmdSupportNone ;
m_Move = ( m_Check ! = cmdSupportNone ) ? cmdSupportCore : cmdSupportNone ;
m_GetLabel = cmdSupportCore ;
m_Backup = cmdSupportCore ;
m_GetUUID = cmdSupportCore ;
}
bool btrfs : : 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 btrfs : : supportToolName ( ) const
{
return SupportTool ( QStringLiteral ( " btrfs-tools " ) , QUrl ( QStringLiteral ( " http://btrfs.wiki.kernel.org/ " ) ) ) ;
}
qint64 btrfs : : minCapacity ( ) const
{
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return 256 * Capacity : : unitFactor ( Capacity : : Byte , Capacity : : MiB ) ;
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}
qint64 btrfs : : maxCapacity ( ) const
{
return Capacity : : unitFactor ( Capacity : : Byte , Capacity : : EiB ) ;
}
qint64 btrfs : : maxLabelLength ( ) const
{
return 255 ;
}
qint64 btrfs : : readUsedCapacity ( const QString & deviceNode ) const
{
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ExternalCommand cmd ( QStringLiteral ( " btrfs " ) ,
{ QStringLiteral ( " filesystem " ) , QStringLiteral ( " show " ) , QStringLiteral ( " --raw " ) , deviceNode } ) ;
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if ( cmd . run ( - 1 ) & & cmd . exitCode ( ) = = 0 ) {
QRegularExpression re ( QStringLiteral ( " used ( \\ d+) path " ) + deviceNode) ;
QRegularExpressionMatch reBytesUsed = re . match ( cmd . output ( ) ) ;
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if ( reBytesUsed . hasMatch ( ) )
return reBytesUsed . captured ( 1 ) . toLongLong ( ) ;
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}
return - 1 ;
}
bool btrfs : : check ( Report & report , const QString & deviceNode ) const
{
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ExternalCommand cmd ( report , QStringLiteral ( " btrfsck " ) , { deviceNode } ) ;
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return cmd . run ( - 1 ) & & cmd . exitCode ( ) = = 0 ;
}
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bool btrfs : : create ( Report & report , const QString & deviceNode )
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{
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ExternalCommand cmd ( report , QStringLiteral ( " mkfs.btrfs " ) , { QStringLiteral ( " --force " ) , deviceNode } ) ;
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return cmd . run ( - 1 ) & & cmd . exitCode ( ) = = 0 ;
}
bool btrfs : : resize ( Report & report , const QString & deviceNode , qint64 length ) const
{
QTemporaryDir tempDir ;
if ( ! tempDir . isValid ( ) ) {
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report . line ( ) < < xi18nc ( " @info:progress " , " Resizing Btrfs file system on partition <filename>%1</filename> failed: Could not create temp dir. " , deviceNode ) ;
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return false ;
}
bool rval = false ;
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ExternalCommand mountCmd ( report , QStringLiteral ( " mount " ) ,
{ QStringLiteral ( " --verbose " ) , QStringLiteral ( " --types " ) , QStringLiteral ( " btrfs " ) , deviceNode , tempDir . path ( ) } ) ;
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if ( mountCmd . run ( - 1 ) & & mountCmd . exitCode ( ) = = 0 ) {
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ExternalCommand resizeCmd ( report , QStringLiteral ( " btrfs " ) ,
{ QStringLiteral ( " filesystem " ) , QStringLiteral ( " resize " ) , QString : : number ( length ) , tempDir . path ( ) } ) ;
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if ( resizeCmd . run ( - 1 ) & & resizeCmd . exitCode ( ) = = 0 )
rval = true ;
else
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report . line ( ) < < xi18nc ( " @info:progress " , " Resizing Btrfs file system on partition <filename>%1</filename> failed: btrfs file system resize failed. " , deviceNode ) ;
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ExternalCommand unmountCmd ( report , QStringLiteral ( " umount " ) , { tempDir . path ( ) } ) ;
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if ( ! unmountCmd . run ( - 1 ) & & unmountCmd . exitCode ( ) = = 0 )
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report . line ( ) < < xi18nc ( " @info:progress " , " <warning>Resizing Btrfs file system on partition <filename>%1</filename>: Unmount failed.</warning> " , deviceNode ) ;
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} else
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report . line ( ) < < xi18nc ( " @info:progress " , " Resizing Btrfs file system on partition <filename>%1</filename> failed: Initial mount failed. " , deviceNode ) ;
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return rval ;
}
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bool btrfs : : resizeOnline ( Report & report , const QString & deviceNode , const QString & mountPoint , qint64 length ) const
{
ExternalCommand resizeCmd ( report , QStringLiteral ( " btrfs " ) ,
{ QStringLiteral ( " filesystem " ) , QStringLiteral ( " resize " ) , QString : : number ( length ) , mountPoint } ) ;
if ( resizeCmd . run ( - 1 ) & & resizeCmd . exitCode ( ) = = 0 )
return true ;
report . line ( ) < < xi18nc ( " @info:progress " , " Resizing Btrfs file system on partition <filename>%1</filename> failed: btrfs file system resize failed. " , deviceNode ) ;
return false ;
}
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bool btrfs : : writeLabel ( Report & report , const QString & deviceNode , const QString & newLabel )
{
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ExternalCommand cmd ( report , QStringLiteral ( " btrfs " ) , { QStringLiteral ( " filesystem " ) , QStringLiteral ( " label " ) , deviceNode , newLabel } ) ;
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return cmd . run ( - 1 ) & & cmd . exitCode ( ) = = 0 ;
}
bool btrfs : : updateUUID ( Report & report , const QString & deviceNode ) const
{
Q_UNUSED ( report ) ;
Q_UNUSED ( deviceNode ) ;
return false ;
}
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}