public ResourceWriter(Image img, Section rsrc, MemoryBinaryWriter writer)
{
m_img = img;
m_rsrc = rsrc;
m_writer = writer;
m_dataEntries = new ArrayList ();
m_stringEntries = new ArrayList ();
}
public ResourceDirectoryTable Read()
{
m_rsrc = GetResourceSection ();
if (m_rsrc == null)
return null;
m_reader = new BinaryReader (new MemoryStream (m_rsrc.Data));
return ReadDirectoryTable ();
}
internal void Remove (Section value)
{
m_items.Remove (value);
}
internal void Insert (int index, Section value)
{
m_items.Insert (index, value);
}
public int IndexOf (Section value)
{
return m_items.IndexOf (value);
}
public bool Contains (Section value)
{
return m_items.Contains (value);
}
internal void Add (Section value)
{
m_items.Add (value);
}
public bool Contains(Section value)
{
return(m_items.Contains(value));
}
public override void VisitSectionCollection(SectionCollection coll)
{
Section text = new Section ();
text.Name = Section.Text;
text.Characteristics = SectionCharacteristics.ContainsCode |
SectionCharacteristics.MemoryRead | SectionCharacteristics.MemExecute;
m_image.TextSection = text;
Section reloc = new Section ();
reloc.Name = Section.Relocs;
reloc.Characteristics = SectionCharacteristics.ContainsInitializedData |
SectionCharacteristics.MemDiscardable | SectionCharacteristics.MemoryRead;
coll.Add (text);
coll.Add (reloc);
}
public override void VisitSection(Section sect)
{
m_binaryWriter.Write (Encoding.ASCII.GetBytes (sect.Name));
int more = 8 - sect.Name.Length;
for (int i = 0; i < more; i++)
m_binaryWriter.Write ((byte) 0);
m_binaryWriter.Write (sect.VirtualSize);
m_binaryWriter.Write (sect.VirtualAddress.Value);
m_binaryWriter.Write (sect.SizeOfRawData);
m_binaryWriter.Write (sect.PointerToRawData.Value);
m_binaryWriter.Write (sect.PointerToRelocations.Value);
m_binaryWriter.Write (sect.PointerToLineNumbers.Value);
m_binaryWriter.Write (sect.NumberOfRelocations);
m_binaryWriter.Write (sect.NumberOfLineNumbers);
m_binaryWriter.Write ((uint) sect.Characteristics);
}
public void Initialize()
{
Image img = m_img;
ResourceWriter resWriter = null;
uint sectAlign = img.PEOptionalHeader.NTSpecificFields.SectionAlignment;
uint fileAlign = img.PEOptionalHeader.NTSpecificFields.FileAlignment;
m_textSect = img.TextSection;
foreach (Section s in img.Sections)
{
if (s.Name == Section.Relocs)
{
m_relocSect = s;
}
else if (s.Name == Section.Resources)
{
m_rsrcSect = s;
m_rsrcWriter = new MemoryBinaryWriter();
resWriter = new ResourceWriter(img, m_rsrcSect, m_rsrcWriter);
resWriter.Write();
}
}
// size computations, fields setting, etc.
uint nbSects = (uint)img.Sections.Count;
img.PEFileHeader.NumberOfSections = (ushort)nbSects;
// build the reloc section data
uint relocSize = 12;
m_relocWriter.Write((uint)0);
m_relocWriter.Write(relocSize);
m_relocWriter.Write((ushort)0);
m_relocWriter.Write((ushort)0);
m_textSect.VirtualSize = (uint)m_textWriter.BaseStream.Length;
m_relocSect.VirtualSize = (uint)m_relocWriter.BaseStream.Length;
if (m_rsrcSect != null)
{
m_rsrcSect.VirtualSize = (uint)m_rsrcWriter.BaseStream.Length;
}
// start counting before sections headers
// section start + section header sixe * number of sections
uint headersEnd = 0x178 + 0x28 * nbSects;
uint fileOffset = headersEnd;
uint sectOffset = sectAlign;
uint imageSize = 0;
foreach (Section sect in img.Sections)
{
fileOffset = GetAligned(fileOffset, fileAlign);
sectOffset = GetAligned(sectOffset, sectAlign);
sect.PointerToRawData = new RVA(fileOffset);
sect.VirtualAddress = new RVA(sectOffset);
sect.SizeOfRawData = GetAligned(sect.VirtualSize, fileAlign);
fileOffset += sect.SizeOfRawData;
sectOffset += sect.SizeOfRawData;
imageSize += GetAligned(sect.SizeOfRawData, sectAlign);
}
if (m_textSect.VirtualAddress.Value != 0x2000)
{
throw new ImageFormatException("Wrong RVA for .text section");
}
if (resWriter != null)
{
resWriter.Patch();
}
img.PEOptionalHeader.StandardFields.CodeSize = GetAligned(
m_textSect.SizeOfRawData, fileAlign);
img.PEOptionalHeader.StandardFields.InitializedDataSize = m_textSect.SizeOfRawData;
if (m_rsrcSect != null)
{
img.PEOptionalHeader.StandardFields.InitializedDataSize += m_rsrcSect.SizeOfRawData;
}
img.PEOptionalHeader.StandardFields.BaseOfCode = m_textSect.VirtualAddress;
img.PEOptionalHeader.StandardFields.BaseOfData = m_relocSect.VirtualAddress;
imageSize += headersEnd;
img.PEOptionalHeader.NTSpecificFields.ImageSize = GetAligned(imageSize, sectAlign);
img.PEOptionalHeader.DataDirectories.BaseRelocationTable = new DataDirectory(
m_relocSect.VirtualAddress, m_relocSect.VirtualSize);
if (m_rsrcSect != null)
{
img.PEOptionalHeader.DataDirectories.ResourceTable = new DataDirectory(
m_rsrcSect.VirtualAddress, (uint)m_rsrcWriter.BaseStream.Length);
}
if (m_kind == AssemblyKind.Dll)
{
img.PEFileHeader.Characteristics = ImageCharacteristics.CILOnlyDll;
img.HintNameTable.RuntimeMain = HintNameTable.RuntimeMainDll;
img.PEOptionalHeader.NTSpecificFields.DLLFlags = 0x400;
}
else
{
img.PEFileHeader.Characteristics = ImageCharacteristics.CILOnlyExe;
img.HintNameTable.RuntimeMain = HintNameTable.RuntimeMainExe;
}
switch (m_kind)
{
case AssemblyKind.Dll:
case AssemblyKind.Console:
img.PEOptionalHeader.NTSpecificFields.SubSystem = SubSystem.WindowsCui;
break;
case AssemblyKind.Windows:
img.PEOptionalHeader.NTSpecificFields.SubSystem = SubSystem.WindowsGui;
break;
}
RVA importTable = new RVA(img.TextSection.VirtualAddress + m_mdWriter.ImportTablePosition);
img.PEOptionalHeader.DataDirectories.ImportTable = new DataDirectory(importTable, 0x57);
img.ImportTable.ImportLookupTable = new RVA((uint)importTable + 0x28);
img.ImportLookupTable.HintNameRVA = img.ImportAddressTable.HintNameTableRVA =
new RVA((uint)img.ImportTable.ImportLookupTable + 0x14);
img.ImportTable.Name = new RVA((uint)img.ImportLookupTable.HintNameRVA + 0xe);
}
void WriteSection(Section sect, MemoryBinaryWriter sectWriter)
{
sectWriter.MemoryStream.WriteTo(m_binaryWriter.BaseStream);
m_binaryWriter.Write(new byte [
sect.SizeOfRawData - sectWriter.BaseStream.Length]);
}
internal void Remove(Section value)
{
m_items.Remove(value);
}
internal void Insert(int index, Section value)
{
m_items.Insert(index, value);
}
public int IndexOf(Section value)
{
return(m_items.IndexOf(value));
}
void WriteSection(Section sect, MemoryBinaryWriter sectWriter)
{
sectWriter.MemoryStream.WriteTo (m_binaryWriter.BaseStream);
m_binaryWriter.Write (new byte [
sect.SizeOfRawData - sectWriter.BaseStream.Length]);
}
public override void VisitSection(Section sect)
{
sect.SetDefaultValues ();
}
public void Initialize()
{
Image img = m_img;
ResourceWriter resWriter = null;
uint sectAlign = img.PEOptionalHeader.NTSpecificFields.SectionAlignment;
uint fileAlign = img.PEOptionalHeader.NTSpecificFields.FileAlignment;
m_textSect = img.TextSection;
foreach (Section s in img.Sections) {
if (s.Name == Section.Relocs)
m_relocSect = s;
else if (s.Name == Section.Resources) {
m_rsrcSect = s;
m_rsrcWriter = new MemoryBinaryWriter ();
resWriter = new ResourceWriter (img, m_rsrcSect, m_rsrcWriter);
resWriter.Write ();
}
}
// size computations, fields setting, etc.
uint nbSects = (uint) img.Sections.Count;
img.PEFileHeader.NumberOfSections = (ushort) nbSects;
// build the reloc section data
uint relocSize = 12;
m_relocWriter.Write ((uint) 0);
m_relocWriter.Write (relocSize);
m_relocWriter.Write ((ushort) 0);
m_relocWriter.Write ((ushort) 0);
m_textSect.VirtualSize = (uint) m_textWriter.BaseStream.Length;
m_relocSect.VirtualSize = (uint) m_relocWriter.BaseStream.Length;
if (m_rsrcSect != null)
m_rsrcSect.VirtualSize = (uint) m_rsrcWriter.BaseStream.Length;
// start counting before sections headers
// section start + section header sixe * number of sections
uint headersEnd = 0x178 + 0x28 * nbSects;
uint fileOffset = headersEnd;
uint sectOffset = sectAlign;
uint imageSize = 0;
foreach (Section sect in img.Sections) {
fileOffset = GetAligned (fileOffset, fileAlign);
sectOffset = GetAligned (sectOffset, sectAlign);
sect.PointerToRawData = new RVA (fileOffset);
sect.VirtualAddress = new RVA (sectOffset);
sect.SizeOfRawData = GetAligned (sect.VirtualSize, fileAlign);
fileOffset += sect.SizeOfRawData;
sectOffset += sect.SizeOfRawData;
imageSize += GetAligned (sect.SizeOfRawData, sectAlign);
}
if (m_textSect.VirtualAddress.Value != 0x2000)
throw new ImageFormatException ("Wrong RVA for .text section");
if (resWriter != null)
resWriter.Patch ();
img.PEOptionalHeader.StandardFields.CodeSize = GetAligned (
m_textSect.SizeOfRawData, fileAlign);
img.PEOptionalHeader.StandardFields.InitializedDataSize = m_textSect.SizeOfRawData;
if (m_rsrcSect != null)
img.PEOptionalHeader.StandardFields.InitializedDataSize += m_rsrcSect.SizeOfRawData;
img.PEOptionalHeader.StandardFields.BaseOfCode = m_textSect.VirtualAddress;
img.PEOptionalHeader.StandardFields.BaseOfData = m_relocSect.VirtualAddress;
imageSize += headersEnd;
img.PEOptionalHeader.NTSpecificFields.ImageSize = GetAligned (imageSize, sectAlign);
img.PEOptionalHeader.DataDirectories.BaseRelocationTable = new DataDirectory (
m_relocSect.VirtualAddress, m_relocSect.VirtualSize);
if (m_rsrcSect != null)
img.PEOptionalHeader.DataDirectories.ResourceTable = new DataDirectory (
m_rsrcSect.VirtualAddress, (uint) m_rsrcWriter.BaseStream.Length);
if (m_kind == AssemblyKind.Dll) {
img.PEFileHeader.Characteristics = ImageCharacteristics.CILOnlyDll;
img.HintNameTable.RuntimeMain = HintNameTable.RuntimeMainDll;
img.PEOptionalHeader.NTSpecificFields.DLLFlags = 0x400;
} else {
img.PEFileHeader.Characteristics = ImageCharacteristics.CILOnlyExe;
img.HintNameTable.RuntimeMain = HintNameTable.RuntimeMainExe;
}
switch (m_kind) {
case AssemblyKind.Dll :
case AssemblyKind.Console :
img.PEOptionalHeader.NTSpecificFields.SubSystem = SubSystem.WindowsCui;
break;
case AssemblyKind.Windows :
img.PEOptionalHeader.NTSpecificFields.SubSystem = SubSystem.WindowsGui;
break;
}
RVA importTable = new RVA (img.TextSection.VirtualAddress + m_mdWriter.ImportTablePosition);
img.PEOptionalHeader.DataDirectories.ImportTable = new DataDirectory (importTable, 0x57);
img.ImportTable.ImportLookupTable = new RVA ((uint) importTable + 0x28);
img.ImportLookupTable.HintNameRVA = img.ImportAddressTable.HintNameTableRVA =
new RVA ((uint) img.ImportTable.ImportLookupTable + 0x14);
img.ImportTable.Name = new RVA ((uint) img.ImportLookupTable.HintNameRVA + 0xe);
}
public override void VisitSection(Section sect)
{
char [] buffer = new char [8];
int read = 0;
while (read < 8) {
char cur = (char) m_binaryReader.ReadSByte ();
if (cur == '\0') {
m_binaryReader.BaseStream.Position += 8 - read - 1;
break;
}
buffer [read++] = cur;
}
sect.Name = read == 0 ? string.Empty : new string (buffer, 0, read);
if (sect.Name == Section.Text)
m_image.TextSection = sect;
sect.VirtualSize = m_binaryReader.ReadUInt32 ();
sect.VirtualAddress = ReadRVA ();
sect.SizeOfRawData = m_binaryReader.ReadUInt32 ();
sect.PointerToRawData = ReadRVA ();
sect.PointerToRelocations = ReadRVA ();
sect.PointerToLineNumbers = ReadRVA ();
sect.NumberOfRelocations = m_binaryReader.ReadUInt16 ();
sect.NumberOfLineNumbers = m_binaryReader.ReadUInt16 ();
sect.Characteristics = (SectionCharacteristics) m_binaryReader.ReadUInt32 ();
long pos = m_binaryReader.BaseStream.Position;
m_binaryReader.BaseStream.Position = sect.PointerToRawData;
sect.Data = m_binaryReader.ReadBytes ((int) sect.SizeOfRawData);
m_binaryReader.BaseStream.Position = pos;
}
internal void Add(Section value)
{
m_items.Add(value);
}