217 lines
6.7 KiB
C++
217 lines
6.7 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 "jfs.h"
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#include "FileSystem.h"
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#include "Partition.h"
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namespace GParted
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{
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FS jfs::get_filesystem_support()
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{
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FS fs( FS_JFS );
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fs .busy = FS::GPARTED ;
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if ( ! Glib::find_program_in_path( "jfs_debugfs" ) .empty() ) {
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fs .read = GParted::FS::EXTERNAL ;
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}
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if ( ! Glib::find_program_in_path( "jfs_tune" ) .empty() ) {
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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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if ( ! Glib::find_program_in_path( "mkfs.jfs" ) .empty() )
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{
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fs .create = GParted::FS::EXTERNAL ;
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fs .create_with_label = GParted::FS::EXTERNAL ;
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}
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if ( ! Glib::find_program_in_path( "jfs_fsck" ) .empty() )
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fs .check = GParted::FS::EXTERNAL ;
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//resizing of jfs requires mount, unmount, check/repair functionality and jfs support in the kernel
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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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fs .check &&
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Utils::kernel_supports_fs( "jfs" ) )
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{
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fs .grow = GParted::FS::EXTERNAL ;
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}
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if ( fs .check )
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{
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fs .move = GParted::FS::GPARTED ;
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fs .copy = GParted::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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fs_limits.min_size = 16 * MEBIBYTE;
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return fs ;
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}
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void jfs::set_used_sectors( Partition & partition )
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{
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const Glib::ustring jfs_debug_cmd = "jfs_debugfs " + Glib::shell_quote( partition.get_path() );
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if ( ! Utils::execute_command( jfs_debug_cmd, "dm\n", output, error, true ) )
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{
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//blocksize
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Glib::ustring::size_type index = output.find( "Block Size:" );
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if ( index >= output .length() ||
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sscanf( output.substr( index ).c_str(), "Block Size: %lld", &S ) != 1 )
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S = -1 ;
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//total blocks
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index = output .find( "dn_mapsize:" ) ;
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if ( index >= output .length() ||
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sscanf( output.substr( index ).c_str(), "dn_mapsize: %llx", &T ) != 1 )
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T = -1 ;
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//free blocks
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index = output .find( "dn_nfree:" ) ;
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if ( index >= output .length() ||
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sscanf( output.substr( index ).c_str(), "dn_nfree: %llx", &N ) != 1 )
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N = -1 ;
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if ( T > -1 && N > -1 && S > -1 )
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{
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T = Utils::round( T * ( S / double(partition .sector_size) ) ) ;
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N = Utils::round( N * ( S / double(partition .sector_size) ) ) ;
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partition .set_sector_usage( T, N ) ;
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partition.fs_block_size = S;
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}
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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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void jfs::read_label( Partition & partition )
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{
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if ( ! Utils::execute_command( "jfs_tune -l " + 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, "^Volume 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 jfs::write_label( const Partition & partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "jfs_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 jfs::read_uuid( Partition & partition )
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{
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if ( ! Utils::execute_command( "jfs_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, "^File system 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 jfs::write_uuid( const Partition & partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "jfs_tune -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 jfs::create( const Partition & new_partition, OperationDetail & operationdetail )
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{
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return ! execute_command( "mkfs.jfs -q -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|EXEC_CANCEL_SAFE );
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}
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bool jfs::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 jfs " + 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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else
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mount_point = partition_new .get_mountpoint() ;
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if ( success )
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{
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success &= ! execute_command( "mount -v -t jfs -o remount,resize " +
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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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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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bool jfs::check_repair( const Partition & partition, OperationDetail & operationdetail )
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{
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exit_status = execute_command( "jfs_fsck -f " + 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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