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REFACTOR: Final cleanup of DiscImageChef.Filesystems.

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This commit is contained in:
Natalia Portillo
2017-12-24 02:37:41 +00:00
parent ec73a6cdc3
commit 4115698ac8
94 changed files with 5196 additions and 5116 deletions
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300
DiscImageChef.Filesystems/AmigaDOS.cs
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@@ -45,6 +45,12 @@ namespace DiscImageChef.Filesystems
{
public class AmigaDOSPlugin : Filesystem
{
const uint FFS_MASK = 0x444F5300;
const uint MUFS_MASK = 0x6D754600;
const uint TYPE_HEADER = 2;
const uint SUBTYPE_ROOT = 1;
public AmigaDOSPlugin()
{
Name = "Amiga DOS filesystem";
@@ -66,150 +72,6 @@ namespace DiscImageChef.Filesystems
CurrentEncoding = encoding ?? Encoding.GetEncoding("iso-8859-1");
}
/// <summary>
/// Boot block, first 2 sectors
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct BootBlock
{
/// <summary>
/// Offset 0x00, "DOSx" disk type
/// </summary>
public uint diskType;
/// <summary>
/// Offset 0x04, Checksum
/// </summary>
public uint checksum;
/// <summary>
/// Offset 0x08, Pointer to root block, mostly invalid
/// </summary>
public uint root_ptr;
/// <summary>
/// Offset 0x0C, Boot code, til completion. Size is intentionally incorrect to allow marshaling to work.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public byte[] bootCode;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct RootBlock
{
/// <summary>
/// Offset 0x00, block type, value = T_HEADER (2)
/// </summary>
public uint type;
/// <summary>
/// Offset 0x04, unused
/// </summary>
public uint headerKey;
/// <summary>
/// Offset 0x08, unused
/// </summary>
public uint highSeq;
/// <summary>
/// Offset 0x0C, longs used by hash table
/// </summary>
public uint hashTableSize;
/// <summary>
/// Offset 0x10, unused
/// </summary>
public uint firstData;
/// <summary>
/// Offset 0x14, Rootblock checksum
/// </summary>
public uint checksum;
/// <summary>
/// Offset 0x18, Hashtable, size = (block size / 4) - 56 or size = hashTableSize.
/// Size intentionally bad to allow marshalling to work.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public uint[] hashTable;
/// <summary>
/// Offset 0x18+hashTableSize*4+0, bitmap flag, 0xFFFFFFFF if valid
/// </summary>
public uint bitmapFlag;
/// <summary>
/// Offset 0x18+hashTableSize*4+4, bitmap pages, 25 entries
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 25)] public uint[] bitmapPages;
/// <summary>
/// Offset 0x18+hashTableSize*4+104, pointer to bitmap extension block
/// </summary>
public uint bitmapExtensionBlock;
/// <summary>
/// Offset 0x18+hashTableSize*4+108, last root alteration days since 1978/01/01
/// </summary>
public uint rDays;
/// <summary>
/// Offset 0x18+hashTableSize*4+112, last root alteration minutes past midnight
/// </summary>
public uint rMins;
/// <summary>
/// Offset 0x18+hashTableSize*4+116, last root alteration ticks (1/50 secs)
/// </summary>
public uint rTicks;
/// <summary>
/// Offset 0x18+hashTableSize*4+120, disk name, pascal string, 31 bytes
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 31)] public byte[] diskName;
/// <summary>
/// Offset 0x18+hashTableSize*4+151, unused
/// </summary>
public byte padding;
/// <summary>
/// Offset 0x18+hashTableSize*4+152, unused
/// </summary>
public uint reserved1;
/// <summary>
/// Offset 0x18+hashTableSize*4+156, unused
/// </summary>
public uint reserved2;
/// <summary>
/// Offset 0x18+hashTableSize*4+160, last disk alteration days since 1978/01/01
/// </summary>
public uint vDays;
/// <summary>
/// Offset 0x18+hashTableSize*4+164, last disk alteration minutes past midnight
/// </summary>
public uint vMins;
/// <summary>
/// Offset 0x18+hashTableSize*4+168, last disk alteration ticks (1/50 secs)
/// </summary>
public uint vTicks;
/// <summary>
/// Offset 0x18+hashTableSize*4+172, filesystem creation days since 1978/01/01
/// </summary>
public uint cDays;
/// <summary>
/// Offset 0x18+hashTableSize*4+176, filesystem creation minutes since 1978/01/01
/// </summary>
public uint cMins;
/// <summary>
/// Offset 0x18+hashTableSize*4+180, filesystem creation ticks since 1978/01/01
/// </summary>
public uint cTicks;
/// <summary>
/// Offset 0x18+hashTableSize*4+184, unused
/// </summary>
public uint nextHash;
/// <summary>
/// Offset 0x18+hashTableSize*4+188, unused
/// </summary>
public uint parentDir;
/// <summary>
/// Offset 0x18+hashTableSize*4+192, first directory cache block
/// </summary>
public uint extension;
/// <summary>
/// Offset 0x18+hashTableSize*4+196, block secondary type = ST_ROOT (1)
/// </summary>
public uint sec_type;
}
const uint FFS_MASK = 0x444F5300;
const uint MUFS_MASK = 0x6D754600;
const uint TYPE_HEADER = 2;
const uint SUBTYPE_ROOT = 1;
public override bool Identify(ImagePlugin imagePlugin, Partition partition)
{
if(partition.Start >= partition.End) return false;
@@ -263,7 +125,8 @@ namespace DiscImageChef.Filesystems
RootBlock rblk = new RootBlock();
// So to handle even number of sectors
foreach(ulong rootPtr in rootPtrs.Where(rootPtr => rootPtr < partition.End && rootPtr >= partition.Start)) {
foreach(ulong rootPtr in rootPtrs.Where(rootPtr => rootPtr < partition.End && rootPtr >= partition.Start))
{
DicConsole.DebugWriteLine("AmigaDOS plugin", "Searching for Rootblock in sector {0}", rootPtr);
sector = imagePlugin.ReadSector(rootPtr);
@@ -305,8 +168,7 @@ namespace DiscImageChef.Filesystems
return false;
}
public override void GetInformation(ImagePlugin imagePlugin, Partition partition,
out string information)
public override void GetInformation(ImagePlugin imagePlugin, Partition partition, out string information)
{
StringBuilder sbInformation = new StringBuilder();
XmlFsType = new FileSystemType();
@@ -345,7 +207,8 @@ namespace DiscImageChef.Filesystems
uint blockSize = 0;
// So to handle even number of sectors
foreach(ulong rootPtr in rootPtrs.Where(rootPtr => rootPtr < partition.End && rootPtr >= partition.Start)) {
foreach(ulong rootPtr in rootPtrs.Where(rootPtr => rootPtr < partition.End && rootPtr >= partition.Start))
{
DicConsole.DebugWriteLine("AmigaDOS plugin", "Searching for Rootblock in sector {0}", rootPtr);
rootBlockSector = imagePlugin.ReadSector(rootPtr);
@@ -453,8 +316,7 @@ namespace DiscImageChef.Filesystems
if((bootBlk.diskType & 0xFF) == 4 || (bootBlk.diskType & 0xFF) == 5)
sbInformation.AppendFormat("Directory cache starts at block {0}", rootBlk.extension).AppendLine();
long blocks = (long)((partition.End - partition.Start + 1) * imagePlugin.ImageInfo.SectorSize /
blockSize);
long blocks = (long)((partition.End - partition.Start + 1) * imagePlugin.ImageInfo.SectorSize / blockSize);
sbInformation.AppendFormat("Volume block size is {0} bytes", blockSize).AppendLine();
sbInformation.AppendFormat("Volume has {0} blocks", blocks).AppendLine();
@@ -581,5 +443,143 @@ namespace DiscImageChef.Filesystems
{
return Errno.NotImplemented;
}
/// <summary>
/// Boot block, first 2 sectors
/// </summary>
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct BootBlock
{
/// <summary>
/// Offset 0x00, "DOSx" disk type
/// </summary>
public uint diskType;
/// <summary>
/// Offset 0x04, Checksum
/// </summary>
public uint checksum;
/// <summary>
/// Offset 0x08, Pointer to root block, mostly invalid
/// </summary>
public uint root_ptr;
/// <summary>
/// Offset 0x0C, Boot code, til completion. Size is intentionally incorrect to allow marshaling to work.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public byte[] bootCode;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct RootBlock
{
/// <summary>
/// Offset 0x00, block type, value = T_HEADER (2)
/// </summary>
public uint type;
/// <summary>
/// Offset 0x04, unused
/// </summary>
public uint headerKey;
/// <summary>
/// Offset 0x08, unused
/// </summary>
public uint highSeq;
/// <summary>
/// Offset 0x0C, longs used by hash table
/// </summary>
public uint hashTableSize;
/// <summary>
/// Offset 0x10, unused
/// </summary>
public uint firstData;
/// <summary>
/// Offset 0x14, Rootblock checksum
/// </summary>
public uint checksum;
/// <summary>
/// Offset 0x18, Hashtable, size = (block size / 4) - 56 or size = hashTableSize.
/// Size intentionally bad to allow marshalling to work.
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public uint[] hashTable;
/// <summary>
/// Offset 0x18+hashTableSize*4+0, bitmap flag, 0xFFFFFFFF if valid
/// </summary>
public uint bitmapFlag;
/// <summary>
/// Offset 0x18+hashTableSize*4+4, bitmap pages, 25 entries
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 25)] public uint[] bitmapPages;
/// <summary>
/// Offset 0x18+hashTableSize*4+104, pointer to bitmap extension block
/// </summary>
public uint bitmapExtensionBlock;
/// <summary>
/// Offset 0x18+hashTableSize*4+108, last root alteration days since 1978/01/01
/// </summary>
public uint rDays;
/// <summary>
/// Offset 0x18+hashTableSize*4+112, last root alteration minutes past midnight
/// </summary>
public uint rMins;
/// <summary>
/// Offset 0x18+hashTableSize*4+116, last root alteration ticks (1/50 secs)
/// </summary>
public uint rTicks;
/// <summary>
/// Offset 0x18+hashTableSize*4+120, disk name, pascal string, 31 bytes
/// </summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 31)] public byte[] diskName;
/// <summary>
/// Offset 0x18+hashTableSize*4+151, unused
/// </summary>
public byte padding;
/// <summary>
/// Offset 0x18+hashTableSize*4+152, unused
/// </summary>
public uint reserved1;
/// <summary>
/// Offset 0x18+hashTableSize*4+156, unused
/// </summary>
public uint reserved2;
/// <summary>
/// Offset 0x18+hashTableSize*4+160, last disk alteration days since 1978/01/01
/// </summary>
public uint vDays;
/// <summary>
/// Offset 0x18+hashTableSize*4+164, last disk alteration minutes past midnight
/// </summary>
public uint vMins;
/// <summary>
/// Offset 0x18+hashTableSize*4+168, last disk alteration ticks (1/50 secs)
/// </summary>
public uint vTicks;
/// <summary>
/// Offset 0x18+hashTableSize*4+172, filesystem creation days since 1978/01/01
/// </summary>
public uint cDays;
/// <summary>
/// Offset 0x18+hashTableSize*4+176, filesystem creation minutes since 1978/01/01
/// </summary>
public uint cMins;
/// <summary>
/// Offset 0x18+hashTableSize*4+180, filesystem creation ticks since 1978/01/01
/// </summary>
public uint cTicks;
/// <summary>
/// Offset 0x18+hashTableSize*4+184, unused
/// </summary>
public uint nextHash;
/// <summary>
/// Offset 0x18+hashTableSize*4+188, unused
/// </summary>
public uint parentDir;
/// <summary>
/// Offset 0x18+hashTableSize*4+192, first directory cache block
/// </summary>
public uint extension;
/// <summary>
/// Offset 0x18+hashTableSize*4+196, block secondary type = ST_ROOT (1)
/// </summary>
public uint sec_type;
}
}
}