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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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236
DiscImageChef.Filesystems/FFS.cs
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@@ -49,6 +49,38 @@ namespace DiscImageChef.Filesystems
[SuppressMessage("ReSharper", "InconsistentNaming")]
public class FFSPlugin : Filesystem
{
const uint block_size = 8192;
// FreeBSD specifies starts at byte offsets 0, 8192, 65536 and 262144, but in other cases it's following sectors
// Without bootcode
const ulong sb_start_floppy = 0;
// With bootcode
const ulong sb_start_boot = 1;
// Dunno, longer boot code
const ulong sb_start_long_boot = 8;
// Found on AT&T for MD-2D floppieslzio
const ulong sb_start_att_dsdd = 14;
// Found on hard disks (Atari UNIX e.g.)
const ulong sb_start_piggy = 32;
// MAGICs
// UFS magic
const uint UFS_MAGIC = 0x00011954;
// Big-endian UFS magic
const uint UFS_CIGAM = 0x54190100;
// BorderWare UFS
const uint UFS_MAGIC_BW = 0x0F242697;
// Big-endian BorderWare UFS
const uint UFS_CIGAM_BW = 0x9726240F;
// UFS2 magic
const uint UFS2_MAGIC = 0x19540119;
// Big-endian UFS2 magic
const uint UFS2_CIGAM = 0x19015419;
// Incomplete newfs
const uint UFS_BAD_MAGIC = 0x19960408;
// Big-endian incomplete newfs
const uint UFS_BAD_CIGAM = 0x08049619;
public FFSPlugin()
{
Name = "BSD Fast File System (aka UNIX File System, UFS)";
@@ -87,11 +119,15 @@ namespace DiscImageChef.Filesystems
262144 / imagePlugin.GetSectorSize()
};
return locations.Where(loc => partition.End > partition.Start + loc + sbSizeInSectors).Select(loc => imagePlugin.ReadSectors(partition.Start + loc, sbSizeInSectors)).Select(ufsSbSectors => BitConverter.ToUInt32(ufsSbSectors, 0x055C)).Any(magic => magic == UFS_MAGIC || magic == UFS_CIGAM || magic == UFS_MAGIC_BW || magic == UFS_CIGAM_BW || magic == UFS2_MAGIC || magic == UFS2_CIGAM || magic == UFS_BAD_MAGIC || magic == UFS_BAD_CIGAM);
return locations.Where(loc => partition.End > partition.Start + loc + sbSizeInSectors)
.Select(loc => imagePlugin.ReadSectors(partition.Start + loc, sbSizeInSectors))
.Select(ufsSbSectors => BitConverter.ToUInt32(ufsSbSectors, 0x055C))
.Any(magic => magic == UFS_MAGIC || magic == UFS_CIGAM || magic == UFS_MAGIC_BW ||
magic == UFS_CIGAM_BW || magic == UFS2_MAGIC || magic == UFS2_CIGAM ||
magic == UFS_BAD_MAGIC || magic == UFS_BAD_CIGAM);
}
public override void GetInformation(ImagePlugin imagePlugin, Partition partition,
out string information)
public override void GetInformation(ImagePlugin imagePlugin, Partition partition, out string information)
{
information = "";
StringBuilder sbInformation = new StringBuilder();
@@ -119,7 +155,8 @@ namespace DiscImageChef.Filesystems
262144 / imagePlugin.GetSectorSize()
};
foreach(ulong loc in locations.Where(loc => partition.End > partition.Start + loc + sb_size_in_sectors)) {
foreach(ulong loc in locations.Where(loc => partition.End > partition.Start + loc + sb_size_in_sectors))
{
ufs_sb_sectors = imagePlugin.ReadSectors(partition.Start + loc, sb_size_in_sectors);
magic = BitConverter.ToUInt32(ufs_sb_sectors, 0x055C);
@@ -347,12 +384,16 @@ namespace DiscImageChef.Filesystems
sbInformation.AppendFormat("NINDIR: 0x{0:X8}", ufs_sb.fs_nindir).AppendLine();
sbInformation.AppendFormat("INOPB: 0x{0:X8}", ufs_sb.fs_inopb).AppendLine();
sbInformation.AppendFormat("NSPF: 0x{0:X8}", ufs_sb.fs_old_nspf).AppendLine();
switch(ufs_sb.fs_optim) {
case 0: sbInformation.AppendLine("Filesystem will minimize allocation time");
switch(ufs_sb.fs_optim)
{
case 0:
sbInformation.AppendLine("Filesystem will minimize allocation time");
break;
case 1: sbInformation.AppendLine("Filesystem will minimize volume fragmentation");
case 1:
sbInformation.AppendLine("Filesystem will minimize volume fragmentation");
break;
default: sbInformation.AppendFormat("Unknown optimization value: 0x{0:X8}", ufs_sb.fs_optim).AppendLine();
default:
sbInformation.AppendFormat("Unknown optimization value: 0x{0:X8}", ufs_sb.fs_optim).AppendLine();
break;
}
@@ -362,7 +403,8 @@ namespace DiscImageChef.Filesystems
.AppendLine();
sbInformation.AppendFormat("Hardware sector interleave: {0}", ufs_sb.fs_old_interleave).AppendLine();
sbInformation.AppendFormat("Sector 0 skew: {0}/track", ufs_sb.fs_old_trackskew).AppendLine();
if(!fs_type_43bsd && ufs_sb.fs_id_1 > 0 && ufs_sb.fs_id_2 > 0) sbInformation.AppendFormat("Volume ID: 0x{0:X8}{1:X8}", ufs_sb.fs_id_1, ufs_sb.fs_id_2).AppendLine();
if(!fs_type_43bsd && ufs_sb.fs_id_1 > 0 && ufs_sb.fs_id_2 > 0)
sbInformation.AppendFormat("Volume ID: 0x{0:X8}{1:X8}", ufs_sb.fs_id_1, ufs_sb.fs_id_2).AppendLine();
else if(fs_type_43bsd && ufs_sb.fs_id_1 > 0 && ufs_sb.fs_id_2 > 0)
{
sbInformation.AppendFormat("{0} µsec for head switch", ufs_sb.fs_id_1).AppendLine();
@@ -451,37 +493,65 @@ namespace DiscImageChef.Filesystems
information = sbInformation.ToString();
}
const uint block_size = 8192;
public override Errno Mount()
{
return Errno.NotImplemented;
}
// FreeBSD specifies starts at byte offsets 0, 8192, 65536 and 262144, but in other cases it's following sectors
// Without bootcode
const ulong sb_start_floppy = 0;
// With bootcode
const ulong sb_start_boot = 1;
// Dunno, longer boot code
const ulong sb_start_long_boot = 8;
// Found on AT&T for MD-2D floppieslzio
const ulong sb_start_att_dsdd = 14;
// Found on hard disks (Atari UNIX e.g.)
const ulong sb_start_piggy = 32;
public override Errno Mount(bool debug)
{
return Errno.NotImplemented;
}
// MAGICs
// UFS magic
const uint UFS_MAGIC = 0x00011954;
// Big-endian UFS magic
const uint UFS_CIGAM = 0x54190100;
// BorderWare UFS
const uint UFS_MAGIC_BW = 0x0F242697;
// Big-endian BorderWare UFS
const uint UFS_CIGAM_BW = 0x9726240F;
// UFS2 magic
const uint UFS2_MAGIC = 0x19540119;
// Big-endian UFS2 magic
const uint UFS2_CIGAM = 0x19015419;
// Incomplete newfs
const uint UFS_BAD_MAGIC = 0x19960408;
// Big-endian incomplete newfs
const uint UFS_BAD_CIGAM = 0x08049619;
public override Errno Unmount()
{
return Errno.NotImplemented;
}
public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
{
return Errno.NotImplemented;
}
public override Errno GetAttributes(string path, ref FileAttributes attributes)
{
return Errno.NotImplemented;
}
public override Errno ListXAttr(string path, ref List<string> xattrs)
{
return Errno.NotImplemented;
}
public override Errno GetXattr(string path, string xattr, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno Read(string path, long offset, long size, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno ReadDir(string path, ref List<string> contents)
{
return Errno.NotImplemented;
}
public override Errno StatFs(ref FileSystemInfo stat)
{
return Errno.NotImplemented;
}
public override Errno Stat(string path, ref FileEntryInfo stat)
{
return Errno.NotImplemented;
}
public override Errno ReadLink(string path, ref string dest)
{
return Errno.NotImplemented;
}
[StructLayout(LayoutKind.Sequential, Pack = 1)]
struct csum
@@ -518,8 +588,10 @@ namespace DiscImageChef.Filesystems
{
/// <summary>linked list of file systems</summary>
public uint fs_link;
/// <summary> used for incore super blocks
/// on Sun: uint fs_rolled; // logging only: fs fully rolled</summary>
/// <summary>
/// used for incore super blocks
/// on Sun: uint fs_rolled; // logging only: fs fully rolled
/// </summary>
public uint fs_rlink;
/// <summary>addr of super-block in filesys</summary>
public ufs_daddr_t fs_sblkno;
@@ -586,21 +658,29 @@ namespace DiscImageChef.Filesystems
/// <summary>value of NSPF</summary>
public int fs_old_nspf;
/* yet another configuration parameter */
/// <summary>optimization preference, see below
/// On SVR: int fs_state; // file system state</summary>
/// <summary>
/// optimization preference, see below
/// On SVR: int fs_state; // file system state
/// </summary>
public int fs_optim;
/// <summary># sectors/track including spares</summary>
public int fs_old_npsect;
/// <summary>hardware sector interleave</summary>
public int fs_old_interleave;
/// <summary>sector 0 skew, per track
/// On A/UX: int fs_state; // file system state</summary>
/// <summary>
/// sector 0 skew, per track
/// On A/UX: int fs_state; // file system state
/// </summary>
public int fs_old_trackskew;
/// <summary>unique filesystem id
/// On old: int fs_headswitch; // head switch time, usec</summary>
/// <summary>
/// unique filesystem id
/// On old: int fs_headswitch; // head switch time, usec
/// </summary>
public int fs_id_1;
/// <summary>unique filesystem id
/// On old: int fs_trkseek; // track-to-track seek, usec</summary>
/// <summary>
/// unique filesystem id
/// On old: int fs_trkseek; // track-to-track seek, usec
/// </summary>
public int fs_id_2;
/* sizes determined by number of cylinder groups and their sizes */
/// <summary>blk addr of cyl grp summary area</summary>
@@ -730,65 +810,5 @@ namespace DiscImageChef.Filesystems
/// <summary>list of blocks for each rotation</summary>
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 1)] public byte[] fs_rotbl;
}
public override Errno Mount()
{
return Errno.NotImplemented;
}
public override Errno Mount(bool debug)
{
return Errno.NotImplemented;
}
public override Errno Unmount()
{
return Errno.NotImplemented;
}
public override Errno MapBlock(string path, long fileBlock, ref long deviceBlock)
{
return Errno.NotImplemented;
}
public override Errno GetAttributes(string path, ref FileAttributes attributes)
{
return Errno.NotImplemented;
}
public override Errno ListXAttr(string path, ref List<string> xattrs)
{
return Errno.NotImplemented;
}
public override Errno GetXattr(string path, string xattr, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno Read(string path, long offset, long size, ref byte[] buf)
{
return Errno.NotImplemented;
}
public override Errno ReadDir(string path, ref List<string> contents)
{
return Errno.NotImplemented;
}
public override Errno StatFs(ref FileSystemInfo stat)
{
return Errno.NotImplemented;
}
public override Errno Stat(string path, ref FileEntryInfo stat)
{
return Errno.NotImplemented;
}
public override Errno ReadLink(string path, ref string dest)
{
return Errno.NotImplemented;
}
}
}