206 lines
6.5 KiB
C++
206 lines
6.5 KiB
C++
/* Copyright (C) 2004 Bart
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* Copyright (C) 2008, 2009, 2010 Curtis Gedak
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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 "reiserfs.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 reiserfs::get_filesystem_support()
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{
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FS fs( FS_REISERFS );
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fs .busy = FS::GPARTED ;
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if ( ! Glib::find_program_in_path( "debugreiserfs" ) .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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}
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if ( ! Glib::find_program_in_path( "reiserfstune" ) .empty() )
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{
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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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if ( ! Glib::find_program_in_path( "mkreiserfs" ) .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( "reiserfsck" ) .empty() )
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fs.check = FS::EXTERNAL;
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//resizing is a delicate process ...
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if ( ! Glib::find_program_in_path( "resize_reiserfs" ) .empty() && fs .check )
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{
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fs.grow = FS::EXTERNAL;
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if ( fs .read ) //needed to determine a min file system size..
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fs.shrink = FS::EXTERNAL;
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}
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if ( fs .check )
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{
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fs.copy = FS::GPARTED;
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fs.move = FS::GPARTED;
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}
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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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fs. online_grow = fs. grow ;
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#endif
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//Actual minimum is at least 18 blocks larger than 32 MiB for the journal offset
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fs_limits.min_size = 34 * MEBIBYTE;
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return fs ;
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}
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void reiserfs::set_used_sectors(Partition& partition)
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{
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exit_status = Utils::execute_command("debugreiserfs " + 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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long long block_count = -1;
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Glib::ustring::size_type index = output.find("\nCount of blocks on the device:");
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if (index < output.length())
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sscanf(output.substr(index).c_str(), "\nCount of blocks on the device: %lld", &block_count);
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long long block_size = -1;
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index = output.find("\nBlocksize:");
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if (index < output.length())
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sscanf(output.substr(index).c_str(), "\nBlocksize: %lld", &block_size);
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long long free_blocks = -1;
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index = output.find("\nFree blocks");
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if (index < output.length())
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sscanf(output.substr(index).c_str(), "\nFree blocks%*[^:]: %lld", &free_blocks);
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if (block_count > -1 && block_size > -1 && free_blocks > -1)
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{
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Sector fs_size = block_count * block_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 reiserfs::read_label( Partition & partition )
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{
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if ( ! Utils::execute_command( "debugreiserfs " + Glib::shell_quote( partition.get_path() ),
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output, error, true ) )
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{
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partition.set_filesystem_label( Utils::regexp_label( output, "^label:[\t ]*(.*)$" ) );
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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 reiserfs::write_label( const Partition & partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "reiserfstune --label " + 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 reiserfs::read_uuid( Partition & partition )
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{
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if ( ! Utils::execute_command( "debugreiserfs " + Glib::shell_quote( partition .get_path() ), output, error, true ) )
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{
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partition .uuid = Utils::regexp_label( output, "^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 reiserfs::write_uuid( const Partition & partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "reiserfstune -u random " + Glib::shell_quote( partition.get_path() ),
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operationdetail, EXEC_CHECK_STATUS );
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}
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bool reiserfs::create( const Partition & new_partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "mkreiserfs -f -f --label " +
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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|EXEC_CANCEL_SAFE );
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}
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bool reiserfs::resize( const Partition & partition_new, OperationDetail & operationdetail, bool fill_partition )
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{
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Glib::ustring size = "" ;
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if ( ! fill_partition )
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size = " -s " + Utils::num_to_str(partition_new.get_byte_length());
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const Glib::ustring resize_cmd = "echo y | resize_reiserfs" + size +
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" " + Glib::shell_quote( partition_new.get_path() );
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exit_status = execute_command( "sh -c " + Glib::shell_quote( resize_cmd ), operationdetail );
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// NOTE: Neither resize_reiserfs manual page nor the following commit, which first
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// added this check, indicate why exit status 1 also indicates success. Commit
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// from 2006-05-23:
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// 7bb7e8a84f164cd913384509a6adc3739a9d8b78
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// Use ped_device_read and ped_device_write instead of 'dd' to copy
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bool success = ( exit_status == 0 || exit_status == 1 );
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set_status( operationdetail, success );
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return success;
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}
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bool reiserfs::check_repair( const Partition & partition, OperationDetail & operationdetail )
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{
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exit_status = execute_command( "reiserfsck --yes --fix-fixable --quiet " +
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Glib::shell_quote( partition.get_path() ),
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operationdetail, EXEC_CANCEL_SAFE );
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bool success = ( exit_status == 0 || exit_status == 1 );
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set_status( operationdetail, success );
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return success;
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}
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} //GParted
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