public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if (imagePlugin.Info.SectorSize < F2FS_MIN_SECTOR || imagePlugin.Info.SectorSize > F2FS_MAX_SECTOR)
{
return(false);
}
uint sbAddr = F2FS_SUPER_OFFSET / imagePlugin.Info.SectorSize;
if (sbAddr == 0)
{
sbAddr = 1;
}
F2FS_Superblock f2fsSb = new F2FS_Superblock();
uint sbSize = (uint)(Marshal.SizeOf(f2fsSb) / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf(f2fsSb) % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
if (partition.Start + sbAddr >= partition.End)
{
return(false);
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + sbAddr, sbSize);
if (sector.Length < Marshal.SizeOf(f2fsSb))
{
return(false);
}
IntPtr sbPtr = Marshal.AllocHGlobal(Marshal.SizeOf(f2fsSb));
Marshal.Copy(sector, 0, sbPtr, Marshal.SizeOf(f2fsSb));
f2fsSb = (F2FS_Superblock)Marshal.PtrToStructure(sbPtr, typeof(F2FS_Superblock));
Marshal.FreeHGlobal(sbPtr);
return(f2fsSb.magic == F2FS_MAGIC);
}
public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if (imagePlugin.Info.SectorSize < F2FS_MIN_SECTOR ||
imagePlugin.Info.SectorSize > F2FS_MAX_SECTOR)
{
return(false);
}
uint sbAddr = F2FS_SUPER_OFFSET / imagePlugin.Info.SectorSize;
if (sbAddr == 0)
{
sbAddr = 1;
}
uint sbSize = (uint)(Marshal.SizeOf <F2FS_Superblock>() / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf <F2FS_Superblock>() % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
if (partition.Start + sbAddr >= partition.End)
{
return(false);
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + sbAddr, sbSize);
if (sector.Length < Marshal.SizeOf <F2FS_Superblock>())
{
return(false);
}
F2FS_Superblock f2fsSb = Marshal.ByteArrayToStructureLittleEndian <F2FS_Superblock>(sector);
return(f2fsSb.magic == F2FS_MAGIC);
}
public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
Encoding encoding)
{
Encoding = Encoding.Unicode;
information = "";
if (imagePlugin.Info.SectorSize < F2FS_MIN_SECTOR || imagePlugin.Info.SectorSize > F2FS_MAX_SECTOR)
{
return;
}
uint sbAddr = F2FS_SUPER_OFFSET / imagePlugin.Info.SectorSize;
if (sbAddr == 0)
{
sbAddr = 1;
}
F2FS_Superblock f2fsSb = new F2FS_Superblock();
uint sbSize = (uint)(Marshal.SizeOf(f2fsSb) / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf(f2fsSb) % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + sbAddr, sbSize);
if (sector.Length < Marshal.SizeOf(f2fsSb))
{
return;
}
IntPtr sbPtr = Marshal.AllocHGlobal(Marshal.SizeOf(f2fsSb));
Marshal.Copy(sector, 0, sbPtr, Marshal.SizeOf(f2fsSb));
f2fsSb = (F2FS_Superblock)Marshal.PtrToStructure(sbPtr, typeof(F2FS_Superblock));
Marshal.FreeHGlobal(sbPtr);
if (f2fsSb.magic != F2FS_MAGIC)
{
return;
}
StringBuilder sb = new StringBuilder();
sb.AppendLine("F2FS filesystem");
sb.AppendFormat("Version {0}.{1}", f2fsSb.major_ver, f2fsSb.minor_ver).AppendLine();
sb.AppendFormat("{0} bytes per sector", 1 << (int)f2fsSb.log_sectorsize).AppendLine();
sb.AppendFormat("{0} sectors ({1} bytes) per block", 1 << (int)f2fsSb.log_sectors_per_block,
1 << (int)f2fsSb.log_blocksize).AppendLine();
sb.AppendFormat("{0} blocks per segment", f2fsSb.log_blocks_per_seg).AppendLine();
sb.AppendFormat("{0} blocks in volume", f2fsSb.block_count).AppendLine();
sb.AppendFormat("{0} segments per section", f2fsSb.segs_per_sec).AppendLine();
sb.AppendFormat("{0} sections per zone", f2fsSb.secs_per_zone).AppendLine();
sb.AppendFormat("{0} sections", f2fsSb.section_count).AppendLine();
sb.AppendFormat("{0} segments", f2fsSb.segment_count).AppendLine();
sb.AppendFormat("Root directory resides on inode {0}", f2fsSb.root_ino).AppendLine();
sb.AppendFormat("Volume UUID: {0}", f2fsSb.uuid).AppendLine();
sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(f2fsSb.volume_name, Encoding.Unicode, true))
.AppendLine();
sb.AppendFormat("Volume last mounted on kernel version: {0}", StringHandlers.CToString(f2fsSb.version))
.AppendLine();
sb.AppendFormat("Volume created on kernel version: {0}", StringHandlers.CToString(f2fsSb.init_version))
.AppendLine();
information = sb.ToString();
XmlFsType = new FileSystemType
{
Type = "F2FS filesystem",
SystemIdentifier = Encoding.ASCII.GetString(f2fsSb.version),
Clusters = (long)f2fsSb.block_count,
ClusterSize = 1 << (int)f2fsSb.log_blocksize,
DataPreparerIdentifier = Encoding.ASCII.GetString(f2fsSb.init_version),
VolumeName = StringHandlers.CToString(f2fsSb.volume_name, Encoding.Unicode, true),
VolumeSerial = f2fsSb.uuid.ToString()
};
}
