215 lines
6.7 KiB
C++
215 lines
6.7 KiB
C++
/* Copyright (C) 2011 Mike Fleetwood
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "nilfs2.h"
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#include "FileSystem.h"
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#include "Partition.h"
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#include <glibmm/miscutils.h>
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#include <glibmm/shell.h>
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namespace GParted
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{
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FS nilfs2::get_filesystem_support()
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{
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FS fs( FS_NILFS2 );
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fs .busy = FS::GPARTED ;
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if ( ! Glib::find_program_in_path( "mkfs.nilfs2" ) .empty() )
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{
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fs.create = FS::EXTERNAL;
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fs.create_with_label = FS::EXTERNAL;
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}
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if ( ! Glib::find_program_in_path( "nilfs-tune" ) .empty() )
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{
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fs.read = FS::EXTERNAL;
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fs.read_label = FS::EXTERNAL;
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fs.write_label = FS::EXTERNAL;
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fs.read_uuid = FS::EXTERNAL;
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fs.write_uuid = FS::EXTERNAL;
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}
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//Nilfs2 resizing is an online only operation and needs:
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// mount, umount, nilfs-resize and linux >= 3.0 with nilfs2 support.
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if ( ! Glib::find_program_in_path( "mount" ) .empty() &&
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! Glib::find_program_in_path( "umount" ) .empty() &&
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! Glib::find_program_in_path( "nilfs-resize" ) .empty() &&
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Utils::kernel_supports_fs( "nilfs2" ) &&
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Utils::kernel_version_at_least( 3, 0, 0 ) )
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{
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fs.grow = FS::EXTERNAL;
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if ( fs .read ) //needed to determine a minimum file system size.
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fs.shrink = FS::EXTERNAL;
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}
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fs.copy = FS::GPARTED;
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fs.move = FS::GPARTED;
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fs .online_read = FS::GPARTED ;
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#ifdef ENABLE_ONLINE_RESIZE
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if ( Utils::kernel_version_at_least( 3, 6, 0 ) )
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{
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fs .online_grow = fs .grow ;
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fs .online_shrink = fs .shrink ;
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}
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#endif
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//Minimum FS size is 128M+4K using mkfs.nilfs2 defaults
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fs_limits.min_size = 128 * MEBIBYTE + 4 * KIBIBYTE;
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return fs ;
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}
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void nilfs2::set_used_sectors(Partition& partition)
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{
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exit_status = Utils::execute_command("nilfs-tune -l " + Glib::shell_quote(partition.get_path()),
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output, error, true);
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if (exit_status != 0)
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{
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if (! output.empty())
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partition.push_back_message(output);
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if (! error.empty())
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partition.push_back_message(error);
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return;
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}
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// File system size in bytes
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long long device_size = -1;
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Glib::ustring::size_type index = output.find("\nDevice size:");
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if (index < output.length())
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sscanf(output.substr(index).c_str(), "\nDevice size: %lld", &device_size);
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// Free space in blocks
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long long free_blocks = -1;
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index = output.find("\nFree blocks count:");
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if (index < output.length())
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sscanf(output.substr(index).c_str(), "\nFree blocks count: %lld", &free_blocks);
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long long block_size = -1;
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index = output.find("\nBlock size:");
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if (index < output.length())
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sscanf(output.substr(index).c_str(), "\nBlock size: %lld", &block_size);
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if (device_size > -1 && free_blocks > -1 && block_size > -1)
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{
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Sector fs_size = device_size / partition.sector_size;
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Sector fs_free = free_blocks * block_size / partition.sector_size;
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partition.set_sector_usage(fs_size, fs_free);
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partition.fs_block_size = block_size;
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}
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}
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void nilfs2::read_label( Partition & partition )
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{
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if ( ! Utils::execute_command( "nilfs-tune -l " + Glib::shell_quote( partition.get_path() ),
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output, error, true ) )
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{
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Glib::ustring label = Utils::regexp_label( output, "^Filesystem volume name:[\t ]*(.*)$" ) ;
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if ( label != "(none)" )
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partition.set_filesystem_label( label );
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else
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partition.set_filesystem_label( "" );
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}
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else
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{
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if ( ! output .empty() )
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partition.push_back_message( output );
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if ( ! error .empty() )
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partition.push_back_message( error );
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}
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}
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bool nilfs2::write_label( const Partition & partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "nilfs-tune -L " + Glib::shell_quote( partition.get_filesystem_label() ) +
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" " + Glib::shell_quote( partition.get_path() ),
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operationdetail, EXEC_CHECK_STATUS );
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}
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void nilfs2::read_uuid( Partition & partition )
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{
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if ( ! Utils::execute_command( "nilfs-tune -l " + Glib::shell_quote( partition.get_path() ),
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output, error, true ) )
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{
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partition .uuid = Utils::regexp_label( output, "^Filesystem UUID:[[:blank:]]*(" RFC4122_NONE_NIL_UUID_REGEXP ")" ) ;
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}
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else
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{
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if ( ! output .empty() )
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partition.push_back_message( output );
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if ( ! error .empty() )
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partition.push_back_message( error );
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}
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}
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bool nilfs2::write_uuid( const Partition & partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "nilfs-tune -U " + Glib::shell_quote( Utils::generate_uuid() ) +
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" " + Glib::shell_quote( partition .get_path() ),
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operationdetail, EXEC_CHECK_STATUS );
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}
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bool nilfs2::create( const Partition & new_partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "mkfs.nilfs2 -L " + Glib::shell_quote( new_partition.get_filesystem_label() ) +
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" " + Glib::shell_quote( new_partition.get_path() ),
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operationdetail, EXEC_CHECK_STATUS );
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}
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bool nilfs2::resize( const Partition & partition_new, OperationDetail & operationdetail, bool fill_partition )
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{
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bool success = true ;
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Glib::ustring mount_point ;
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if ( ! partition_new .busy )
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{
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mount_point = mk_temp_dir( "", operationdetail ) ;
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if ( mount_point .empty() )
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return false ;
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success &= ! execute_command( "mount -v -t nilfs2 " + Glib::shell_quote( partition_new.get_path() ) +
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" " + Glib::shell_quote( mount_point ),
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operationdetail, EXEC_CHECK_STATUS );
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}
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if ( success )
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{
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Glib::ustring size;
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if ( ! fill_partition )
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size = " " + Utils::num_to_str(partition_new.get_byte_length() / KIBIBYTE) + "K";
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success &= ! execute_command("nilfs-resize -v -y " + Glib::shell_quote(partition_new.get_path()) + size,
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operationdetail, EXEC_CHECK_STATUS);
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if ( ! partition_new. busy )
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success &= ! execute_command( "umount -v " + Glib::shell_quote( mount_point ),
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operationdetail, EXEC_CHECK_STATUS );
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}
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if ( ! partition_new .busy )
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rm_temp_dir( mount_point, operationdetail ) ;
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return success ;
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}
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} //GParted
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