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Created 2 files to support ext4 operations. 

Support for ext4 is planned for version 2.6.28 of the Linux kernel.

svn path=/trunk/; revision=1004
This commit is contained in:
Curtis Gedak 2008-12-18 22:07:06 +00:00
parent 5493f7ecc6
commit c020834508
6 changed files with 202 additions and 4 deletions
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3
AUTHORS
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@ -12,10 +12,11 @@ not an invitation to misrepresent who contributed to GNU GParted.
We need to keep track of copyright (see the Maintainer HOWTO on www.gnu.org).
Curtis Gedak <gedakc@users.sourceforge.net>
* Created ext4.h, ext4.cc to support ext4 file systems
* Created FS_Info.h, FS_Info.cc
* Rewrote read_label functionality for hfs
* Wrote create, read_label, and check_repair functionality for hfs+
* Wrote read_label functionality for fat16 and fat32 filesystems
* Wrote read_label functionality for fat16 and fat32 file systems
* Wrote following Utils:: methods:
regexp_label(), fat_compliant_label(),
create_mtoolsrc_file(), delete_mtoolsrc_file,

6
ChangeLog
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@ -1,5 +1,11 @@
2008-12-18 Curtis Gedak <gedakc@gmail.com>
* include/ext4.h,
include/Makefile.am,
src/ext4.cc,
src/Makefile.am: Created 2 files to support ext4 operations.
- Support for ext4 is planned for version 2.6.28 of the Linux kernel.
* include/FS_Info.h,
src/FS_Info.cc: Added get_fs_type() method

7
include/Makefile.am
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@ -14,7 +14,7 @@ EXTRA_DIST = \
DialogManageFlags.h \
DrawingAreaVisualDisk.h \
FileSystem.h \
Frame_Resizer_Base.h \
Frame_Resizer_Base.h \
Frame_Resizer_Extended.h \
FS_Info.h \
GParted_Core.h \
@ -28,19 +28,20 @@ EXTRA_DIST = \
OperationFormat.h \
OperationResizeMove.h \
OperationLabelPartition.h \
Partition.h \
Partition.h \
TreeView_Detail.h \
Utils.h \
Win_GParted.h \
ext2.h \
ext3.h \
ext4.h \
fat16.h \
fat32.h \
hfs.h \
hfsplus.h \
i18n.h \
jfs.h \
linux_swap.h \
linux_swap.h \
ntfs.h \
reiser4.h \
reiserfs.h \

45
include/ext4.h Normal file
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@ -0,0 +1,45 @@
/* Copyright (C) 2008 Curtis Gedak
*
* 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 2 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef EXT4_H_
#define EXT4_H_
#include "../include/FileSystem.h"
namespace GParted
{
class ext4 : public FileSystem
{
public:
FS get_filesystem_support() ;
void set_used_sectors( Partition & partition ) ;
void read_label( Partition & partition ) ;
bool write_label( const Partition & partition, OperationDetail & operationdetail ) ;
bool create( const Partition & new_partition, OperationDetail & operationdetail ) ;
bool resize( const Partition & partition_new, OperationDetail & operationdetail, bool fill_partition = false ) ;
bool copy( const Glib::ustring & src_part_path,
const Glib::ustring & dest_part_path,
OperationDetail & operationdetail ) ;
bool check_repair( const Partition & partition, OperationDetail & operationdetail ) ;
};
} //GParted
#endif /*EXT4_H_*/

1
src/Makefile.am
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@ -43,6 +43,7 @@ gpartedbin_SOURCES = \
Win_GParted.cc \
ext2.cc \
ext3.cc \
ext4.cc \
fat16.cc \
fat32.cc \
hfs.cc \

144
src/ext4.cc Normal file
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@ -0,0 +1,144 @@
/* Copyright (C) 2008 Curtis Gedak
*
* 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 2 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../include/ext4.h"
namespace GParted
{
FS ext4::get_filesystem_support()
{
FS fs ;
fs .filesystem = GParted::FS_EXT4 ;
//To be on the safe side, only enable all the function if mkfs.ext4 is
// found indicating that there is a recent copy of e2fsprogs available.
if ( ! Glib::find_program_in_path( "mkfs.ext4" ) .empty() )
{
fs .create = GParted::FS::EXTERNAL ;
if ( ! Glib::find_program_in_path( "dumpe2fs" ) .empty() )
fs .read = GParted::FS::EXTERNAL ;
if ( ! Glib::find_program_in_path( "e2label" ) .empty() ) {
fs .read_label = FS::EXTERNAL ;
fs .write_label = FS::EXTERNAL ;
}
if ( ! Glib::find_program_in_path( "e2fsck" ) .empty() )
fs .check = GParted::FS::EXTERNAL ;
if ( ! Glib::find_program_in_path( "resize2fs" ) .empty() && fs .check )
{
fs .grow = GParted::FS::EXTERNAL ;
if ( fs .read ) //needed to determine a min file system size..
fs .shrink = GParted::FS::EXTERNAL ;
}
if ( fs .check )
{
fs .copy = GParted::FS::GPARTED ;
fs .move = GParted::FS::GPARTED ;
}
}
return fs ;
}
void ext4::set_used_sectors( Partition & partition )
{
if ( ! Utils::execute_command( "dumpe2fs -h " + partition .get_path(), output, error, true ) )
{
index = output .find( "Free blocks:" ) ;
if ( index >= output .length() ||
sscanf( output.substr( index ) .c_str(), "Free blocks: %Ld", &N ) != 1 )
N = -1 ;
index = output .find( "Block size:" ) ;
if ( index >= output.length() ||
sscanf( output.substr( index ) .c_str(), "Block size: %Ld", &S ) != 1 )
S = -1 ;
if ( N > -1 && S > -1 )
partition .Set_Unused( Utils::round( N * ( S / 512.0 ) ) ) ;
}
else
{
if ( ! output .empty() )
partition .messages .push_back( output ) ;
if ( ! error .empty() )
partition .messages .push_back( error ) ;
}
}
void ext4::read_label( Partition & partition )
{
if ( ! Utils::execute_command( "e2label " + partition .get_path(), output, error, true ) )
{
partition .label = Utils::regexp_label( output, "^(.*)" ) ;
}
else
{
if ( ! output .empty() )
partition .messages .push_back( output ) ;
if ( ! error .empty() )
partition .messages .push_back( error ) ;
}
}
bool ext4::write_label( const Partition & partition, OperationDetail & operationdetail )
{
return ! execute_command( "e2label " + partition .get_path() + " \"" + partition .label + "\"", operationdetail ) ;
}
bool ext4::create( const Partition & new_partition, OperationDetail & operationdetail )
{
return ! execute_command( "mkfs.ext4 -L \"" + new_partition .label + "\" " + new_partition .get_path(), operationdetail ) ;
}
bool ext4::resize( const Partition & partition_new, OperationDetail & operationdetail, bool fill_partition )
{
Glib::ustring str_temp = "resize2fs " + partition_new .get_path() ;
if ( ! fill_partition )
str_temp += " " + Utils::num_to_str( Utils::round( Utils::sector_to_unit(
partition_new .get_length(), GParted::UNIT_KIB ) ) -1, true ) + "K" ;
return ! execute_command( str_temp, operationdetail ) ;
}
bool ext4::copy( const Glib::ustring & src_part_path,
const Glib::ustring & dest_part_path,
OperationDetail & operationdetail )
{
return true ;
}
bool ext4::check_repair( const Partition & partition, OperationDetail & operationdetail )
{
exit_status = execute_command( "e2fsck -f -y -v " + partition .get_path(), operationdetail ) ;
//exitstatus 256 isn't documented, but it's returned when the 'FILE SYSTEM IS MODIFIED'
//this is quite normal (especially after a copy) so we let the function return true...
return ( exit_status == 0 || exit_status == 1 || exit_status == 2 || exit_status == 256 ) ;
}
} //GParted