public CLRMetaData(StreamParser parser, CLRAssembly assembly)
{
Assembly = assembly;
long metaRootPosition = parser.Position;
uint magic = parser.ReadU32();
if (magic != 0x424a5342)
throw new ParseFailedException("Bad metadata magic");
MajorVersion = parser.ReadU16();
MinorVersion = parser.ReadU16();
parser.Skip(4); // Reserved
uint versionLength = parser.ReadU32();
if (versionLength > 255)
throw new ParseFailedException("Oversized section length");
uint paddedLength = versionLength + 3;
paddedLength -= paddedLength % 4;
Version = parser.ReadUTF8String((int)versionLength);
parser.Skip(paddedLength - versionLength);
Flags = parser.ReadU16();
ushort nStreams = parser.ReadU16();
StreamHeaders = new CLRStreamHeader[nStreams];
Dictionary<string, CLRStreamHeader> streamHeadersByName = new Dictionary<string, CLRStreamHeader>();
for (int i = 0; i < nStreams; i++)
{
CLRStreamHeader sh = new CLRStreamHeader(parser);
if (streamHeadersByName.ContainsKey(sh.Name))
throw new ParseFailedException("Duplicate metadata stream");
streamHeadersByName[sh.Name] = sh;
}
// Strings US GUID Blob
CLRMetaStreamBinaryData binData = new CLRMetaStreamBinaryData(parser, metaRootPosition, streamHeadersByName);
// Parse metadata tables
parser.Seek(streamHeadersByName["#~"].Offset + metaRootPosition);
MetaDataTables = new CLRMetaDataTables(parser, this, binData);
}
public CLRMetaDataTables(StreamParser parser, CLRMetaData metaData, CLRMetaStreamBinaryData binData)
{
MetaData = metaData;
parser.Skip(4); // Reserved
byte majorVersion = parser.ReadU8();
byte minorVersion = parser.ReadU8();
byte heapSizes = parser.ReadU8();
parser.Skip(1); // Reserved
ulong validMask = parser.ReadU64();
ulong sortedMask = parser.ReadU64();
m_rowCounts = new uint[64];
for (int i = 0; i < 64; i++)
{
if ((validMask & ((ulong)1 << i)) != 0)
m_rowCounts[i] = parser.ReadU32();
}
StringOffsets32Bit = ((heapSizes & 1) != 0);
GuidOffsets32Bit = ((heapSizes & 2) != 0);
BlobOffsets32Bit = ((heapSizes & 4) != 0);
if (majorVersion != 2 || minorVersion != 0)
throw new ParseFailedException("Unknown metadata table version");
m_clrTables = new ICLRTable[64];
AddTable(0x00, new CLRTable<CLRModuleRow>());
AddTable(0x01, new CLRTable<CLRTypeRefRow>());
AddTable(0x02, new CLRTable<CLRTypeDefRow>());
AddTable(0x04, new CLRTable<CLRFieldRow>());
AddTable(0x06, new CLRTable<CLRMethodDefRow>());
AddTable(0x08, new CLRTable<CLRParamRow>());
AddTable(0x09, new CLRTable<CLRInterfaceImplRow>());
AddTable(0x0a, new CLRTable<CLRMemberRefRow>());
AddTable(0x0b, new CLRTable<CLRConstantRow>());
AddTable(0x0c, new CLRTable<CLRCustomAttributeRow>());
AddTable(0x0d, new CLRTable<CLRFieldMarshalRow>());
AddTable(0x0e, new CLRTable<CLRDeclSecurityRow>());
AddTable(0x0f, new CLRTable<CLRClassLayoutRow>());
AddTable(0x10, new CLRTable<CLRFieldLayoutRow>());
AddTable(0x11, new CLRTable<CLRStandAloneSigRow>());
AddTable(0x12, new CLRTable<CLREventMapRow>());
AddTable(0x14, new CLRTable<CLREventRow>());
AddTable(0x15, new CLRTable<CLRPropertyMapRow>());
AddTable(0x17, new CLRTable<CLRPropertyRow>());
AddTable(0x18, new CLRTable<CLRMethodSemanticsRow>());
AddTable(0x19, new CLRTable<CLRMethodImplRow>());
AddTable(0x1a, new CLRTable<CLRModuleRefRow>());
AddTable(0x1b, new CLRTable<CLRTypeSpecRow>());
AddTable(0x1c, new CLRTable<CLRImplMapRow>());
AddTable(0x1d, new CLRTable<CLRFieldRVARow>());
AddTable(0x20, new CLRTable<CLRAssemblyRow>());
AddTable(0x21, new CLRTable<CLRAssemblyProcessorRow>());
AddTable(0x22, new CLRTable<CLRAssemblyOSRow>());
AddTable(0x23, new CLRTable<CLRAssemblyRefRow>());
AddTable(0x24, new CLRTable<CLRAssemblyRefProcessorRow>());
AddTable(0x25, new CLRTable<CLRAssemblyRefOSRow>());
AddTable(0x26, new CLRTable<CLRFileRow>());
AddTable(0x27, new CLRTable<CLRExportedTypeRow>());
AddTable(0x28, new CLRTable<CLRManifestResourceRow>());
AddTable(0x29, new CLRTable<CLRNestedClassRow>());
AddTable(0x2a, new CLRTable<CLRGenericParamRow>());
AddTable(0x2c, new CLRTable<CLRGenericParamConstraintRow>());
AddTable(0x2b, new CLRTable<CLRMethodSpecRow>());
MetaDataParser = new CLRMetaDataParser(parser, binData, this, StringOffsets32Bit, GuidOffsets32Bit, BlobOffsets32Bit);
for (int i = 0; i < 64; i++)
{
if ((validMask & (ulong)1 << i) != 0)
{
if (m_clrTables[i] == null)
throw new ParseFailedException("Unknown table type");
m_clrTables[i].Parse(MetaDataParser);
}
}
}
public CLRMetaDataParser(StreamParser parser, CLRMetaStreamBinaryData binData, CLRMetaDataTables tables, bool largeStrings, bool largeGuids, bool largeBlobs)
{
m_parser = parser;
m_binData = binData;
m_tables = tables;
m_largeStrings = largeStrings;
m_largeGuids = largeGuids;
m_largeBlobs = largeBlobs;
}
