public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if (imagePlugin.Info.SectorSize < 512)
{
return(false);
}
uint sbAddr = NILFS2_SUPER_OFFSET / imagePlugin.Info.SectorSize;
if (sbAddr == 0)
{
sbAddr = 1;
}
NILFS2_Superblock nilfsSb = new NILFS2_Superblock();
uint sbSize = (uint)(Marshal.SizeOf(nilfsSb) / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf(nilfsSb) % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
if (partition.Start + sbAddr + sbSize >= partition.End)
{
return(false);
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + sbAddr, sbSize);
if (sector.Length < Marshal.SizeOf(nilfsSb))
{
return(false);
}
IntPtr sbPtr = Marshal.AllocHGlobal(Marshal.SizeOf(nilfsSb));
Marshal.Copy(sector, 0, sbPtr, Marshal.SizeOf(nilfsSb));
nilfsSb = (NILFS2_Superblock)Marshal.PtrToStructure(sbPtr, typeof(NILFS2_Superblock));
Marshal.FreeHGlobal(sbPtr);
return(nilfsSb.magic == NILFS2_MAGIC);
}
public bool Identify(IMediaImage imagePlugin, Partition partition)
{
if (imagePlugin.Info.SectorSize < 512)
{
return(false);
}
uint sbAddr = NILFS2_SUPER_OFFSET / imagePlugin.Info.SectorSize;
if (sbAddr == 0)
{
sbAddr = 1;
}
uint sbSize = (uint)(Marshal.SizeOf <NILFS2_Superblock>() / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf <NILFS2_Superblock>() % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
if (partition.Start + sbAddr + sbSize >= partition.End)
{
return(false);
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + sbAddr, sbSize);
if (sector.Length < Marshal.SizeOf <NILFS2_Superblock>())
{
return(false);
}
NILFS2_Superblock nilfsSb = Marshal.ByteArrayToStructureLittleEndian <NILFS2_Superblock>(sector);
return(nilfsSb.magic == NILFS2_MAGIC);
}
public void GetInformation(IMediaImage imagePlugin, Partition partition, out string information,
Encoding encoding)
{
Encoding = encoding ?? Encoding.UTF8;
information = "";
if (imagePlugin.Info.SectorSize < 512)
{
return;
}
uint sbAddr = NILFS2_SUPER_OFFSET / imagePlugin.Info.SectorSize;
if (sbAddr == 0)
{
sbAddr = 1;
}
uint sbSize = (uint)(Marshal.SizeOf <NILFS2_Superblock>() / imagePlugin.Info.SectorSize);
if (Marshal.SizeOf <NILFS2_Superblock>() % imagePlugin.Info.SectorSize != 0)
{
sbSize++;
}
byte[] sector = imagePlugin.ReadSectors(partition.Start + sbAddr, sbSize);
if (sector.Length < Marshal.SizeOf <NILFS2_Superblock>())
{
return;
}
NILFS2_Superblock nilfsSb = Marshal.ByteArrayToStructureLittleEndian <NILFS2_Superblock>(sector);
if (nilfsSb.magic != NILFS2_MAGIC)
{
return;
}
StringBuilder sb = new StringBuilder();
sb.AppendLine("NILFS2 filesystem");
sb.AppendFormat("Version {0}.{1}", nilfsSb.rev_level, nilfsSb.minor_rev_level).AppendLine();
sb.AppendFormat("{0} bytes per block", 1 << (int)(nilfsSb.log_block_size + 10)).AppendLine();
sb.AppendFormat("{0} bytes in volume", nilfsSb.dev_size).AppendLine();
sb.AppendFormat("{0} blocks per segment", nilfsSb.blocks_per_segment).AppendLine();
sb.AppendFormat("{0} segments", nilfsSb.nsegments).AppendLine();
if (nilfsSb.creator_os == 0)
{
sb.AppendLine("Filesystem created on Linux");
}
else
{
sb.AppendFormat("Creator OS code: {0}", nilfsSb.creator_os).AppendLine();
}
sb.AppendFormat("{0} bytes per inode", nilfsSb.inode_size).AppendLine();
sb.AppendFormat("Volume UUID: {0}", nilfsSb.uuid).AppendLine();
sb.AppendFormat("Volume name: {0}", StringHandlers.CToString(nilfsSb.volume_name, Encoding)).AppendLine();
sb.AppendFormat("Volume created on {0}", DateHandlers.UnixUnsignedToDateTime(nilfsSb.ctime)).AppendLine();
sb.AppendFormat("Volume last mounted on {0}", DateHandlers.UnixUnsignedToDateTime(nilfsSb.mtime))
.AppendLine();
sb.AppendFormat("Volume last written on {0}", DateHandlers.UnixUnsignedToDateTime(nilfsSb.wtime))
.AppendLine();
information = sb.ToString();
XmlFsType = new FileSystemType
{
Type = "NILFS2 filesystem",
ClusterSize = (uint)(1 << (int)(nilfsSb.log_block_size + 10)),
VolumeName = StringHandlers.CToString(nilfsSb.volume_name, Encoding),
VolumeSerial = nilfsSb.uuid.ToString(),
CreationDate = DateHandlers.UnixUnsignedToDateTime(nilfsSb.ctime),
CreationDateSpecified = true,
ModificationDate = DateHandlers.UnixUnsignedToDateTime(nilfsSb.wtime),
ModificationDateSpecified = true
};
if (nilfsSb.creator_os == 0)
{
XmlFsType.SystemIdentifier = "Linux";
}
XmlFsType.Clusters = nilfsSb.dev_size / XmlFsType.ClusterSize;
}
