aaru-dps/Aaru
1
0
Fork 0
mirror of https://github.com/aaru-dps/Aaru.git synced 2025-12-16 19:24:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Decode ISO9660 path tables.

Browse Source
This commit is contained in:
Natalia Portillo
2019-07-29 02:45:46 +01:00
parent 8cc11c160e
commit 28ad9dac86
5 changed files with 91 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

46
DiscImageChef.Filesystems/ISO9660/Super.cs
View File

@@ -160,15 +160,44 @@ namespace DiscImageChef.Filesystems.ISO9660
if(jolietvd != null) decodedJolietVd = DecodeJolietDescriptor(jolietvd.Value);
if(this.@namespace != Namespace.Romeo) Encoding = Encoding.ASCII;
string fsFormat;
if(highSierra) fsFormat = "High Sierra Format";
byte[] pathTableData;
uint pathTableSizeInSectors = 0;
if(highSierra)
{
pathTableSizeInSectors = hsvd.Value.path_table_size / 2048;
if(hsvd.Value.path_table_size % 2048 > 0) pathTableSizeInSectors++;
pathTableData =
imagePlugin.ReadSectors(Swapping.Swap(hsvd.Value.mandatory_path_table_msb), pathTableSizeInSectors);
fsFormat = "High Sierra Format";
}
else if(cdi)
{
pathTableSizeInSectors = fsvd.Value.path_table_size / 2048;
if(fsvd.Value.path_table_size % 2048 > 0) pathTableSizeInSectors++;
pathTableData = imagePlugin.ReadSectors(fsvd.Value.path_table_addr, pathTableSizeInSectors);
fsFormat = "CD-i";
// TODO: Implement CD-i
return Errno.NotImplemented;
}
else fsFormat = "ISO9660";
else
{
pathTableSizeInSectors = pvd.Value.path_table_size / 2048;
if(pvd.Value.path_table_size % 2048 > 0) pathTableSizeInSectors++;
pathTableData =
imagePlugin.ReadSectors(Swapping.Swap(pvd.Value.type_m_path_table), pathTableSizeInSectors);
fsFormat = "ISO9660";
}
pathTable = DecodePathTable(pathTableData);
// High Sierra and CD-i do not support Joliet or RRIP
if((highSierra || cdi) && this.@namespace != Namespace.Normal && this.@namespace != Namespace.Vms)
@@ -179,7 +208,6 @@ namespace DiscImageChef.Filesystems.ISO9660
uint rootLocation = 0;
uint rootSize = 0;
// TODO: Read CD-i root directory
if(!cdi)
{
rootLocation = highSierra
@@ -197,6 +225,16 @@ namespace DiscImageChef.Filesystems.ISO9660
if(pvd.Value.root_directory_record.size % pvd.Value.logical_block_size > 0) rootSize++;
}
}
else
{
rootLocation = pathTable[0].Extent;
byte[] firstRootSector = imagePlugin.ReadSector(rootLocation);
CdiDirectoryRecord rootEntry =
Marshal.ByteArrayToStructureBigEndian<CdiDirectoryRecord>(firstRootSector);
rootSize = rootEntry.size / fsvd.Value.logical_block_size;
if(rootEntry.size % fsvd.Value.logical_block_size > 0) rootSize++;
}
if(rootLocation + rootSize >= imagePlugin.Info.Sectors) return Errno.InvalidArgument;
@@ -210,8 +248,6 @@ namespace DiscImageChef.Filesystems.ISO9660
// TODO: Add IP.BIN to debug root directory
// TODO: Add volume descriptors to debug root directory
if(this.@namespace != Namespace.Romeo) Encoding = Encoding.ASCII;
if(this.@namespace != Namespace.Joliet)
rootDirectoryCache = cdi
? DecodeCdiDirectory(rootDir)