gparted/src/xfs.cc

357 lines
12 KiB
C++

/* Copyright (C) 2004 Bart
* Copyright (C) 2008, 2009, 2010 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 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 "xfs.h"
#include "FileSystem.h"
#include "OperationDetail.h"
#include "Partition.h"
#include "Utils.h"
#include <glibmm/ustring.h>
#include <glibmm/miscutils.h>
#include <glibmm/shell.h>
namespace GParted
{
FS xfs::get_filesystem_support()
{
FS fs( FS_XFS );
fs .busy = FS::GPARTED ;
if ( ! Glib::find_program_in_path( "xfs_db" ) .empty() )
{
fs.read = FS::EXTERNAL;
fs .read_label = FS::EXTERNAL ;
}
if ( ! Glib::find_program_in_path( "xfs_admin" ) .empty() )
{
fs .write_label = FS::EXTERNAL ;
fs .read_uuid = FS::EXTERNAL ;
fs .write_uuid = FS::EXTERNAL ;
}
if (! Glib::find_program_in_path("xfs_io").empty())
{
// Check for online label support in xfs_io from xfsprogs >= 4.17 and
// for kernel >= 4.18 before enabling support.
Utils::execute_command("xfs_io -c help", output, error, true);
if (output.find("\nlabel") < output.length() && Utils::kernel_version_at_least(4, 18, 0))
fs.online_write_label = FS::EXTERNAL;
}
if ( ! Glib::find_program_in_path( "mkfs.xfs" ) .empty() )
{
fs.create = FS::EXTERNAL;
fs.create_with_label = FS::EXTERNAL;
}
if ( ! Glib::find_program_in_path( "xfs_repair" ) .empty() )
fs.check = FS::EXTERNAL;
//Mounted operations require mount, umount and xfs support in the kernel
if ( ! Glib::find_program_in_path( "mount" ) .empty() &&
! Glib::find_program_in_path( "umount" ) .empty() &&
fs .check &&
Utils::kernel_supports_fs( "xfs" ) )
{
//Grow
if ( ! Glib::find_program_in_path( "xfs_growfs" ) .empty() )
fs .grow = FS::EXTERNAL ;
//Copy using xfsdump, xfsrestore
if ( ! Glib::find_program_in_path( "xfsdump" ) .empty() &&
! Glib::find_program_in_path( "xfsrestore" ) .empty() &&
fs .create )
fs .copy = FS::EXTERNAL ;
}
if ( fs .check )
fs.move = FS::GPARTED;
fs .online_read = FS::GPARTED ;
#ifdef ENABLE_ONLINE_RESIZE
if ( Utils::kernel_version_at_least( 3, 6, 0 ) )
fs .online_grow = fs .grow ;
#endif
// From xfsprogs 5.19.0 the smallest creatable file system is 300 MiB.
fs_limits.min_size = 300 * MEBIBYTE;
return fs ;
}
void xfs::set_used_sectors(Partition& partition)
{
exit_status = Utils::execute_command("xfs_db -r -c 'sb 0' -c 'print blocksize' -c 'print dblocks'"
" -c 'print fdblocks' " + Glib::shell_quote(partition.get_path()),
output, error, true);
if (exit_status != 0)
{
if (! output.empty())
partition.push_back_message(output);
if (! error.empty())
partition.push_back_message(error);
return;
}
// blocksize
long long block_size = -1;
sscanf(output.c_str(), "blocksize = %lld", &block_size);
// filesystem data blocks
long long data_blocks = -1;
Glib::ustring::size_type index = output.find("\ndblocks");
if (index < output.length())
sscanf(output.substr(index).c_str(), "\ndblocks = %lld", &data_blocks);
// free data blocks
long long free_data_blocks = -1;
index = output.find("\nfdblocks");
if (index < output.length())
sscanf(output.substr(index).c_str(), "\nfdblocks = %lld", &free_data_blocks);
if (block_size > -1 && data_blocks > -1 && free_data_blocks > -1)
{
Sector fs_size = data_blocks * block_size / partition.sector_size;
Sector fs_free = free_data_blocks * block_size / partition.sector_size;
partition.set_sector_usage(fs_size, fs_free);
partition.fs_block_size = block_size;
}
}
void xfs::read_label( Partition & partition )
{
if ( ! Utils::execute_command( "xfs_db -r -c 'label' " + Glib::shell_quote( partition.get_path() ),
output, error, true ) )
{
partition.set_filesystem_label( Utils::regexp_label( output, "^label = \"(.*)\"" ) );
}
else
{
if ( ! output .empty() )
partition.push_back_message( output );
if ( ! error .empty() )
partition.push_back_message( error );
}
}
bool xfs::write_label( const Partition & partition, OperationDetail & operationdetail )
{
Glib::ustring cmd;
bool empty_label = partition.get_filesystem_label().empty();
if (partition.busy)
{
if (empty_label)
cmd = "xfs_io -c " + Glib::shell_quote("label -c") + " " + partition.get_mountpoint();
else
cmd = "xfs_io -c " + Glib::shell_quote("label -s " + partition.get_filesystem_label()) +
" " + partition.get_mountpoint();
execute_command(cmd, operationdetail);
// In some error situations xfs_io reports exit status zero and writes a
// failure message to stdout. Therefore determine success based on the
// output starting with the fixed text, reporting the new label.
bool success = output.compare(0, 9, "label = \"") == 0;
set_status(operationdetail, success);
return success;
}
else
{
if (empty_label)
cmd = "xfs_admin -L -- " + Glib::shell_quote(partition.get_path());
else
cmd = "xfs_admin -L " + Glib::shell_quote(partition.get_filesystem_label()) +
" " + partition.get_path();
return ! execute_command(cmd, operationdetail, EXEC_CHECK_STATUS);
}
}
void xfs::read_uuid( Partition & partition )
{
if ( ! Utils::execute_command( "xfs_admin -u " + Glib::shell_quote( partition.get_path() ),
output, error, true ) )
{
partition .uuid = Utils::regexp_label( output, "^UUID[[:blank:]]*=[[:blank:]]*(" RFC4122_NONE_NIL_UUID_REGEXP ")" ) ;
}
else
{
if ( ! output .empty() )
partition.push_back_message( output );
if ( ! error .empty() )
partition.push_back_message( error );
}
}
bool xfs::write_uuid( const Partition & partition, OperationDetail & operationdetail )
{
return ! execute_command( "xfs_admin -U generate " + Glib::shell_quote( partition.get_path() ),
operationdetail, EXEC_CHECK_STATUS );
}
bool xfs::create( const Partition & new_partition, OperationDetail & operationdetail )
{
return ! execute_command( "mkfs.xfs -f -L " + Glib::shell_quote( new_partition.get_filesystem_label() ) +
" " + Glib::shell_quote( new_partition.get_path() ),
operationdetail,
EXEC_CHECK_STATUS|EXEC_CANCEL_SAFE );
}
bool xfs::resize( const Partition & partition_new, OperationDetail & operationdetail, bool fill_partition )
{
bool success = true ;
Glib::ustring mount_point ;
if ( ! partition_new .busy )
{
mount_point = mk_temp_dir( "", operationdetail ) ;
if ( mount_point.empty() )
return false ;
success &= ! execute_command( "mount -v -t xfs " + Glib::shell_quote( partition_new.get_path() ) +
" " + Glib::shell_quote( mount_point ),
operationdetail, EXEC_CHECK_STATUS );
}
else
mount_point = partition_new .get_mountpoint() ;
if ( success )
{
success &= ! execute_command( "xfs_growfs " + Glib::shell_quote( mount_point ),
operationdetail, EXEC_CHECK_STATUS );
if ( ! partition_new .busy )
success &= ! execute_command( "umount -v " + Glib::shell_quote( mount_point ),
operationdetail, EXEC_CHECK_STATUS );
}
if ( ! partition_new .busy )
rm_temp_dir( mount_point, operationdetail ) ;
return success ;
}
bool xfs::copy( const Partition & src_part,
Partition & dest_part,
OperationDetail & operationdetail )
{
bool success = true ;
success &= ! execute_command("mkfs.xfs -f -L " + Glib::shell_quote(dest_part.get_filesystem_label()) +
" -m uuid=" + Glib::shell_quote(dest_part.uuid) +
" " + Glib::shell_quote(dest_part.get_path()),
operationdetail, EXEC_CHECK_STATUS|EXEC_CANCEL_SAFE);
if ( ! success )
return false ;
Glib::ustring src_mount_point = mk_temp_dir( "src", operationdetail ) ;
if ( src_mount_point .empty() )
return false ;
dest_mount_point = mk_temp_dir( "dest", operationdetail );
if ( dest_mount_point .empty() )
{
rm_temp_dir( src_mount_point, operationdetail ) ;
return false ;
}
success &= ! execute_command( "mount -v -t xfs -o noatime,ro " + Glib::shell_quote( src_part.get_path() ) +
" " + Glib::shell_quote( src_mount_point ),
operationdetail, EXEC_CHECK_STATUS );
// Get source FS used bytes, needed in progress update calculation
Byte_Value fs_size;
Byte_Value fs_free;
if ( Utils::get_mounted_filesystem_usage( src_mount_point, fs_size, fs_free, error ) == 0 )
src_used = fs_size - fs_free;
else
src_used = -1LL;
if ( success )
{
success &= ! execute_command("mount -v -t xfs -o nouuid " + Glib::shell_quote(dest_part.get_path()) +
" " + Glib::shell_quote(dest_mount_point),
operationdetail, EXEC_CHECK_STATUS);
if ( success )
{
const Glib::ustring copy_cmd = "xfsdump -J - " + Glib::shell_quote( src_mount_point ) +
" | xfsrestore -J - " + Glib::shell_quote( dest_mount_point );
success &= ! execute_command( "sh -c " + Glib::shell_quote( copy_cmd ),
operationdetail,
EXEC_CHECK_STATUS|EXEC_CANCEL_SAFE|EXEC_PROGRESS_TIMED,
static_cast<TimedSlot>( sigc::mem_fun( *this, &xfs::copy_progress ) ) );
success &= ! execute_command( "umount -v " + Glib::shell_quote( dest_mount_point ),
operationdetail, EXEC_CHECK_STATUS );
}
success &= ! execute_command( "umount -v " + Glib::shell_quote( src_mount_point ),
operationdetail, EXEC_CHECK_STATUS );
}
rm_temp_dir( dest_mount_point, operationdetail ) ;
rm_temp_dir( src_mount_point, operationdetail ) ;
return success ;
}
bool xfs::check_repair( const Partition & partition, OperationDetail & operationdetail )
{
return ! execute_command( "xfs_repair -v " + Glib::shell_quote( partition.get_path() ),
operationdetail, EXEC_CHECK_STATUS|EXEC_CANCEL_SAFE );
}
//Private methods
// Report progress of XFS copy. Monitor destination FS used bytes and track against
// recorded source FS used bytes.
bool xfs::copy_progress( OperationDetail * operationdetail )
{
if ( src_used <= 0LL )
{
operationdetail->stop_progressbar();
// Failed to get source FS used bytes. Remove this timed callback early.
return false;
}
Byte_Value fs_size;
Byte_Value fs_free;
Byte_Value dst_used;
if ( Utils::get_mounted_filesystem_usage( dest_mount_point, fs_size, fs_free, error ) != 0 )
{
operationdetail->stop_progressbar();
// Failed to get destination FS used bytes. Remove this timed callback early.
return false;
}
dst_used = fs_size - fs_free;
operationdetail->run_progressbar( (double)dst_used, (double)src_used, PROGRESSBAR_TEXT_COPY_BYTES );
return true;
}
} //GParted