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/**
* Support of PE executable files.
*/
#include "../runtime/common.h"
#include "../runtime/crypto.h"
#include "objects.h"
#include "osutils.h"
#include "streams.h"
#include "files.h"
#include "pefile.h"
#include "dotnetfile.h"
#include "processors.h"
#include "intel.h"
#include "lang.h"
#include "core.h"
#include "script.h"
#include "pdb.h"
#ifdef DEMO
#include "win_runtime32demo.dll.inc"
#include "win_runtime64demo.dll.inc"
#include "win_runtime32demo.sys.inc"
#include "win_runtime64demo.sys.inc"
#else
#include "win_runtime32.dll.inc"
#include "win_runtime64.dll.inc"
#include "win_runtime32.sys.inc"
#include "win_runtime64.sys.inc"
#endif
#include "dotnet20_runtime32.dll.inc"
#include "dotnet20_runtime64.dll.inc"
#include "dotnet40_runtime32.dll.inc"
#include "dotnet40_runtime64.dll.inc"
#include "netstandard_runtime32.dll.inc"
#include "netstandard_runtime64.dll.inc"
#include "netcore_runtime32.dll.inc"
#include "netcore_runtime64.dll.inc"
/**
* PESegment
*/
PESegment::PESegment(PESegmentList *owner)
: BaseSection(owner), address_(0), size_(0), physical_offset_(0), physical_size_(0), flags_(0)
{
}
PESegment::PESegment(PESegmentList *owner, uint64_t address, uint32_t size, uint32_t physical_offset,
uint32_t physical_size, uint32_t flags, const std::string &name)
: BaseSection(owner), name_(name), address_(address), size_(size), physical_offset_(physical_offset), physical_size_(physical_size), flags_(flags)
{
}
PESegment::PESegment(PESegmentList *owner, const PESegment &src)
: BaseSection(owner, src)
{
address_ = src.address_;
size_ = src.size_;
physical_offset_ = src.physical_offset_;
physical_size_ = src.physical_size_;
flags_ = src.flags_;
name_ = src.name_;
}
PESegment *PESegment::Clone(ISectionList *owner) const
{
PESegment *section = new PESegment(reinterpret_cast<PESegmentList *>(owner), *this);
return section;
}
void PESegment::ReadFromFile(PEArchitecture &file)
{
IMAGE_SECTION_HEADER section_header;
file.Read(§ion_header, sizeof(section_header));
name_ = std::string(reinterpret_cast<char *>(§ion_header.Name), strnlen(reinterpret_cast<char *>(§ion_header.Name), sizeof(section_header.Name)));
size_ = section_header.Misc.VirtualSize;
address_ = section_header.VirtualAddress + file.image_base();
physical_offset_ = section_header.PointerToRawData;
physical_size_ = section_header.SizeOfRawData;
flags_ = section_header.Characteristics;
}
void PESegment::WriteToFile(PEArchitecture &file) const
{
IMAGE_SECTION_HEADER section_header = IMAGE_SECTION_HEADER();
memcpy(section_header.Name, name_.c_str(), std::min(name_.size(), sizeof(section_header.Name)));
section_header.Misc.VirtualSize = size_;
section_header.VirtualAddress = static_cast<uint32_t>(address_ - file.image_base());
section_header.PointerToRawData = (physical_size_) ? physical_offset_ : 0;
section_header.SizeOfRawData = physical_size_;
section_header.Characteristics = flags_;
file.Write(§ion_header, sizeof(section_header));
}
uint32_t PESegment::memory_type() const
{
uint32_t res = mtNone;
if (flags_ & IMAGE_SCN_MEM_READ)
res |= mtReadable;
if (flags_ & IMAGE_SCN_MEM_WRITE)
res |= mtWritable;
if (flags_ & IMAGE_SCN_MEM_EXECUTE)
res |= mtExecutable;
if (flags_ & IMAGE_SCN_MEM_DISCARDABLE)
res |= mtDiscardable;
if (flags_ & IMAGE_SCN_MEM_NOT_PAGED)
res |= mtNotPaged;
if (flags_ & IMAGE_SCN_MEM_SHARED)
res |= mtShared;
return res;
}
void PESegment::update_type(uint32_t mt)
{
if (mt & mtReadable) {
flags_ |= IMAGE_SCN_MEM_READ;
if ((mt & mtExecutable) == 0)
flags_ |= IMAGE_SCN_CNT_INITIALIZED_DATA;
}
if (mt & mtWritable)
flags_ |= IMAGE_SCN_MEM_WRITE;
if (mt & mtExecutable)
flags_ |= IMAGE_SCN_CNT_CODE | IMAGE_SCN_MEM_EXECUTE;
if ((mt & (mtDiscardable | mtNotDiscardable)) == mtDiscardable)
flags_ |= IMAGE_SCN_MEM_DISCARDABLE;
else
flags_ &= ~IMAGE_SCN_MEM_DISCARDABLE;
if (mt & mtNotPaged)
flags_ |= IMAGE_SCN_MEM_NOT_PAGED;
if (mt & mtShared)
flags_ |= IMAGE_SCN_MEM_SHARED;
}
void PESegment::Rebase(uint64_t delta_base)
{
address_ += delta_base;
}
/**
* PESegmentList
*/
PESegmentList::PESegmentList(PEArchitecture *owner)
: BaseSectionList(owner), header_segment_(NULL)
{
}
PESegmentList::PESegmentList(PEArchitecture *owner, const PESegmentList &src)
: BaseSectionList(owner, src), header_segment_(NULL)
{
if (src.header_segment_)
header_segment_ = src.header_segment_->Clone(NULL);
}
PESegmentList::~PESegmentList()
{
delete header_segment_;
}
PESegmentList *PESegmentList::Clone(PEArchitecture *owner) const
{
PESegmentList *section_list = new PESegmentList(owner, *this);
return section_list;
}
PESegment *PESegmentList::Add()
{
PESegment *section = new PESegment(this);
AddObject(section);
return section;
}
PESegment *PESegmentList::Add(uint64_t address, uint32_t size, uint32_t physical_offset, uint32_t physical_size, uint32_t flags, const std::string &name)
{
PESegment *section = new PESegment(this, address, size, physical_offset, physical_size, flags, name);
AddObject(section);
return section;
}
PESegment *PESegmentList::item(size_t index) const
{
return reinterpret_cast<PESegment *>(BaseSectionList::item(index));
}
PESegment *PESegmentList::GetSectionByAddress(uint64_t address) const
{
PESegment *res = reinterpret_cast<PESegment *>(BaseSectionList::GetSectionByAddress(address));
if (!res && header_segment_ && address >= header_segment_->address() && address < header_segment_->address() + header_segment_->size())
res = header_segment_;
return res;
}
PESegment *PESegmentList::last() const
{
return reinterpret_cast<PESegment *>(BaseSectionList::last());
}
void PESegmentList::ReadFromFile(PEArchitecture &file, uint32_t count)
{
Reserve(count);
for (size_t i = 0; i < count; i++) {
Add()->ReadFromFile(file);
}
if (header_segment_) {
delete header_segment_;
header_segment_ = NULL;
}
if (this->count()) {
PESegment *first_segment = item(0);
header_segment_ = new PESegment(NULL, file.image_base(), static_cast<uint32_t>(first_segment->address() - file.image_base()), 0, first_segment->physical_offset(), 0, ".header");
}
}
void PESegmentList::WriteToFile(PEArchitecture &file) const
{
for (size_t i = 0; i < count(); i++) {
item(i)->WriteToFile(file);
}
}
/**
* PESection
*/
PESection::PESection(PESectionList *owner, PESegment *parent, uint64_t address, uint64_t size, const std::string &name)
: BaseSection(owner), name_(name), address_(address), size_(size), parent_(parent)
{
}
PESection::PESection(PESectionList *owner, const PESection &src)
: BaseSection(owner, src)
{
address_ = src.address_;
size_ = src.size_;
name_ = src.name_;
parent_ = src.parent_;
}
PESection *PESection::Clone(ISectionList *owner) const
{
PESection *section = new PESection(reinterpret_cast<PESectionList *>(owner), *this);
return section;
}
void PESection::Rebase(uint64_t delta_base)
{
address_ += delta_base;
}
/**
* PESectionList
*/
PESectionList::PESectionList(PEArchitecture *owner)
: BaseSectionList(owner)
{
}
PESectionList::PESectionList(PEArchitecture *owner, const PESectionList &src)
: BaseSectionList(owner, src)
{
}
PESectionList *PESectionList::Clone(PEArchitecture *owner) const
{
PESectionList *section_list = new PESectionList(owner, *this);
return section_list;
}
PESection *PESectionList::item(size_t index) const
{
return reinterpret_cast<PESection *>(BaseSectionList::item(index));
}
PESection *PESectionList::Add(PESegment *parent, uint64_t address, uint64_t size, const std::string &name)
{
PESection *section = new PESection(this, parent, address, size, name);
AddObject(section);
return section;
}
/**
* PEDirectory
*/
PEDirectory::PEDirectory(PEDirectoryList *owner, uint32_t type)
: BaseLoadCommand(owner), address_(0), size_(0), type_(type), physical_size_(0)
{
}
PEDirectory::PEDirectory(PEDirectoryList *owner, const PEDirectory &src)
: BaseLoadCommand(owner, src)
{
address_ = src.address_;
size_ = src.size_;
type_ = src.type_;
physical_size_ = src.physical_size_;
}
PEDirectory *PEDirectory::Clone(ILoadCommandList *owner) const
{
PEDirectory *dir = new PEDirectory(reinterpret_cast<PEDirectoryList *>(owner), *this);
return dir;
}
void PEDirectory::clear()
{
address_ = 0;
size_ = 0;
physical_size_ = 0;
}
void PEDirectory::ReadFromFile(PEArchitecture &file)
{
IMAGE_DATA_DIRECTORY dir;
file.Read(&dir, sizeof(IMAGE_DATA_DIRECTORY));
address_ = (dir.VirtualAddress == 0) ? 0 : dir.VirtualAddress + file.image_base();
size_ = dir.Size;
}
void PEDirectory::WriteToFile(PEArchitecture &file) const
{
IMAGE_DATA_DIRECTORY dir;
dir.VirtualAddress = address_ ? static_cast<uint32_t>(address_ - file.image_base()) : 0;
dir.Size = size_;
file.Write(&dir, sizeof(IMAGE_DATA_DIRECTORY));
}
std::string PEDirectory::name() const
{
switch (type_) {
case IMAGE_DIRECTORY_ENTRY_EXPORT:
return std::string("Export");
case IMAGE_DIRECTORY_ENTRY_IMPORT:
return std::string("Import");
case IMAGE_DIRECTORY_ENTRY_RESOURCE:
return std::string("Resource");
case IMAGE_DIRECTORY_ENTRY_EXCEPTION:
return std::string("Exception");
case IMAGE_DIRECTORY_ENTRY_SECURITY:
return std::string("Security");
case IMAGE_DIRECTORY_ENTRY_BASERELOC:
return std::string("Relocation");
case IMAGE_DIRECTORY_ENTRY_DEBUG:
return std::string("Debug");
case IMAGE_DIRECTORY_ENTRY_ARCHITECTURE:
return std::string("Architecture");
case IMAGE_DIRECTORY_ENTRY_GLOBALPTR:
return std::string("Reserved");
case IMAGE_DIRECTORY_ENTRY_TLS:
return std::string("Thread Local Storage");
case IMAGE_DIRECTORY_ENTRY_LOAD_CONFIG:
return std::string("Configuration");
case IMAGE_DIRECTORY_ENTRY_BOUND_IMPORT:
return std::string("Bound Import");
case IMAGE_DIRECTORY_ENTRY_IAT:
return std::string("Import Address Table");
case IMAGE_DIRECTORY_ENTRY_DELAY_IMPORT:
return std::string("Delay Import");
case IMAGE_DIRECTORY_ENTRY_COM_DESCRIPTOR:
return std::string(".NET MetaData");
}
return BaseLoadCommand::name();
}
void PEDirectory::Rebase(uint64_t delta_base)
{
if (address_)
address_ += delta_base;
}
void PEDirectory::FreeByManager(MemoryManager &manager)
{
if (!address() || !physical_size())
return;
size_t size = physical_size();
manager.Add(address_, size);
IArchitecture *file = manager.owner();
for (size_t i = 0; i < size; i++) {
IFixup *fixup = file->fixup_list()->GetFixupByAddress(address_ + i);
if (fixup)
fixup->set_deleted(true);
}
}
/**
* PEDirectoryList
*/
PEDirectoryList::PEDirectoryList(PEArchitecture *owner)
: BaseCommandList(owner)
{
}
PEDirectoryList::PEDirectoryList(PEArchitecture *owner, const PEDirectoryList &src)
: BaseCommandList(owner, src)
{
}
PEDirectory *PEDirectoryList::item(size_t index) const
{
return reinterpret_cast<PEDirectory *>(BaseCommandList::item(index));
}
PEDirectoryList *PEDirectoryList::Clone(PEArchitecture *owner) const
{
PEDirectoryList *directory_list = new PEDirectoryList(owner, *this);
return directory_list;
}
PEDirectory *PEDirectoryList::Add(uint32_t type)
{
PEDirectory *dir = new PEDirectory(this, type);
AddObject(dir);
return dir;
}
PEDirectory *PEDirectoryList::GetCommandByType(uint32_t type) const
{
return reinterpret_cast<PEDirectory *>(BaseCommandList::GetCommandByType(type));
}
PEDirectory *PEDirectoryList::GetCommandByAddress(uint64_t address) const
{
for (size_t i = 0; i < count(); i++) {
PEDirectory *dir = item(i);
if (dir->address() == address)
return dir;
}
return NULL;
}
void PEDirectoryList::ReadFromFile(PEArchitecture &file, uint32_t count)
{
for (uint32_t i = 0; i < count; i++) {
Add(i)->ReadFromFile(file);
}
}
void PEDirectoryList::WriteToFile(PEArchitecture &file) const
{
for (size_t i = 0; i < count(); i++) {
item(i)->WriteToFile(file);
}
}
/**
* PEImportFunction
*/
PEImportFunction::PEImportFunction(PEImport *owner)
: BaseImportFunction(owner), name_address_(0), address_(0), is_ordinal_(false), ordinal_(0)
{
}
PEImportFunction::PEImportFunction(PEImport *owner, const std::string &name)
: BaseImportFunction(owner), name_(name), name_address_(0), address_(0), is_ordinal_(false), ordinal_(0)
{
}
PEImportFunction::PEImportFunction(PEImport *owner, uint64_t address, APIType type, MapFunction *map_function)
: BaseImportFunction(owner), name_address_(0), address_(address), ordinal_(0), is_ordinal_(false)
{
set_type(type);
set_map_function(map_function);
}
PEImportFunction::PEImportFunction(PEImport *owner, const PEImportFunction &src)
: BaseImportFunction(owner, src)
{
name_ = src.name_;
name_address_ = src.name_address_;
address_ = src.address_;
is_ordinal_ = src.is_ordinal_;
ordinal_ = src.ordinal_;
}
PEImportFunction *PEImportFunction::Clone(IImport *owner) const
{
PEImportFunction *func = new PEImportFunction(reinterpret_cast<PEImport *>(owner), *this);
return func;
}
bool PEImportFunction::ReadFromFile(PEArchitecture &file, uint32_t &rva)
{
address_ = rva + file.image_base();
if (file.cpu_address_size() == osDWord) {
IMAGE_THUNK_DATA32 thunk;
file.Read(&thunk, sizeof(thunk));
name_address_ = thunk.u1.AddressOfData;
if (!name_address_)
return false;
is_ordinal_ = IMAGE_SNAP_BY_ORDINAL32(name_address_);
rva += sizeof(uint32_t);
} else {
IMAGE_THUNK_DATA64 thunk;
file.Read(&thunk, sizeof(thunk));
name_address_ = thunk.u1.AddressOfData;
if (!name_address_)
return false;
is_ordinal_ = IMAGE_SNAP_BY_ORDINAL64(name_address_);
rva += sizeof(uint64_t);
}
if (is_ordinal_) {
ordinal_ = IMAGE_ORDINAL32(name_address_);
name_address_ = 0;
name_ = string_format("Ordinal: %.4X", ordinal_);
} else {
name_address_ += file.image_base();
uint64_t pos = file.Tell();
if (!file.AddressSeek(name_address_ + sizeof(WORD)))
throw std::runtime_error("Format error");
name_ = file.ReadString();
file.Seek(pos);
}
return true;
}
void PEImportFunction::FreeByManager(MemoryManager &manager, bool free_iat)
{
if (name_address_)
manager.Add(name_address_, sizeof(uint16_t) + name_.size() + 1);
if (address_ && free_iat && (options() & (ioHasDataReference | ioNoReferences)) == 0)
manager.Add(address_, OperandSizeToValue(manager.owner()->cpu_address_size()));
}
void PEImportFunction::Rebase(uint64_t delta_base)
{
if (name_address_)
name_address_ += delta_base;
if (address_)
address_ += delta_base;
}
bool PEImportFunction::IsInternal(const CompileContext &ctx) const
{
if ((options() & ioFromRuntime) == 0) {
if (ctx.options.flags & cpResourceProtection) {
if (type() >= atLoadResource && type() <= atEnumResourceTypesW)
return true;
}
}
return false;
}
std::string PEImportFunction::display_name(bool show_ret) const
{
return DemangleName(name_).display_name(show_ret);
}
/**
* PEImport
*/
PEImport::PEImport(PEImportList *owner)
: BaseImport(owner), name_address_(0), is_sdk_(false), original_first_thunk_address_(0), first_thunk_address_(0), time_stamp_(0), forwarder_chain_(0)
{
}
PEImport::PEImport(PEImportList *owner, bool is_sdk)
: BaseImport(owner), name_address_(0), is_sdk_(is_sdk), original_first_thunk_address_(0), first_thunk_address_(0), time_stamp_(0), forwarder_chain_(0)
{
}
PEImport::PEImport(PEImportList *owner, const std::string &name)
: BaseImport(owner), name_(name), name_address_(0), is_sdk_(false), original_first_thunk_address_(0), first_thunk_address_(0), time_stamp_(0), forwarder_chain_(0)
{
}
PEImport::PEImport(PEImportList *owner, const PEImport &src)
: BaseImport(owner, src)
{
name_ = src.name_;
is_sdk_ = src.is_sdk_;
name_address_ = src.name_address_;
original_first_thunk_address_ = src.original_first_thunk_address_;
first_thunk_address_ = src.first_thunk_address_;
time_stamp_ = src.time_stamp_;
forwarder_chain_ = src.forwarder_chain_;
}
PEImport *PEImport::Clone(IImportList *owner) const
{
PEImport *import = new PEImport(reinterpret_cast<PEImportList *>(owner), *this);
return import;
}
PEImportFunction *PEImport::item(size_t index) const
{
return reinterpret_cast<PEImportFunction *>(IImport::item(index));
}
bool PEImport::ReadFromFile(PEArchitecture &file)
{
static const ImportInfo kernel32_info[] = {
{atLoadResource, "LoadResource", ioNone, ctNone},
{atFindResourceA, "FindResourceA", ioNone, ctNone},
{atFindResourceExA, "FindResourceExA", ioNone, ctNone},
{atFindResourceW, "FindResourceW", ioNone, ctNone},
{atFindResourceExW, "FindResourceExW", ioNone, ctNone},
{atEnumResourceNamesA, "EnumResourceNamesA", ioNone, ctNone},
{atEnumResourceNamesW, "EnumResourceNamesW", ioNone, ctNone},
{atEnumResourceLanguagesA, "EnumResourceLanguagesA", ioNone, ctNone},
{atEnumResourceLanguagesW, "EnumResourceLanguagesW", ioNone, ctNone},
{atEnumResourceTypesA, "EnumResourceTypesA", ioNone, ctNone},
{atEnumResourceTypesW, "EnumResourceTypesW", ioNone, ctNone},
{atNone, "ExitProcess", ioNoReturn, ctNone},
{atNone, "ExitThread", ioNoReturn, ctNone},
{atNone, "FreeLibraryAndExitThread", ioNoReturn, ctNone},
{atNone, "GetVersion", ioNative, ctNone},
{atNone, "GetVersionExA", ioNative, ctNone},
{atNone, "GetVersionExW", ioNative, ctNone}
};
static const ImportInfo user32_info[] = {
{atLoadStringA, "LoadStringA", ioNone, ctNone},
{atLoadStringW, "LoadStringW", ioNone, ctNone}
};
static const ImportInfo msvbvm_info[] = {
{atNone, "__vbaError", ioNoReturn, ctNone},
{atNone, "__vbaErrorOverflow", ioNoReturn, ctNone},
{atNone, "__vbaStopExe", ioNoReturn, ctNone},
{atNone, "__vbaFailedFriend", ioNoReturn, ctNone},
{atNone, "__vbaEnd", ioNoReturn, ctNone},
{atNone, "__vbaFPException", ioNoReturn, ctNone},
{atNone, "__vbaGenerateBoundsError", ioNoReturn, ctNone},
{atNone, "Ordinal: 0064", ioNoReturn, ctNone},
};
static const ImportInfo default_info[] = {
{atNone, "@System@@Halt0$qqrv", ioNoReturn, ctNone},
{atNone, "exit", ioNoReturn, ctNone},
{atNone, "abort", ioNoReturn, ctNone},
{atNone, "?terminate@@YAXXZ", ioNoReturn, ctNone},
{atNone, "?unexpected@@YAXXZ", ioNoReturn, ctNone},
{atNone, "__std_terminate", ioNoReturn, ctNone},
{atNone, "?_Xout_of_range@std@@YAXPEBD@Z", ioNoReturn, ctNone},
{atNone, "?_Xlength_error@std@@YAXPEBD@Z", ioNoReturn, ctNone},
{atNone, "_CxxThrowException", ioNoReturn, ctNone},
};
IMAGE_IMPORT_DESCRIPTOR import_descriptor;
uint64_t pos;
PEImportFunction *func;
size_t i, j;
std::string dll_name;
file.Read(&import_descriptor, sizeof(import_descriptor));
if (!import_descriptor.FirstThunk)
return false;
pos = file.Tell();
name_address_ = import_descriptor.Name + file.image_base();
if (!file.AddressSeek(name_address_))
throw std::runtime_error("Format error");
name_ = file.ReadString();
original_first_thunk_address_ = import_descriptor.u.OriginalFirstThunk;
if (original_first_thunk_address_)
original_first_thunk_address_ += file.image_base();
first_thunk_address_ = import_descriptor.FirstThunk;
if (first_thunk_address_)
first_thunk_address_ += file.image_base();
if (!file.AddressSeek((original_first_thunk_address_ != 0) ? original_first_thunk_address_ : first_thunk_address_))
throw std::runtime_error("Format error");
time_stamp_ = import_descriptor.TimeDateStamp;
forwarder_chain_ = import_descriptor.ForwarderChain;
uint32_t rva = import_descriptor.FirstThunk;
while (true) {
func = new PEImportFunction(this);
if (!func->ReadFromFile(file, rva)) {
delete func;
break;
}
AddObject(func);
}
file.Seek(pos);
dll_name = name_;
std::transform(dll_name.begin(), dll_name.end(), dll_name.begin(), tolower);
std::string sdk_name;
if (file.image_type() == itDriver) {
if (dll_name.find('.') == (size_t)-1)
dll_name += ".sys";
sdk_name = string_format("vmprotectddk%d.sys", (file.cpu_address_size() == osDWord) ? 32 : 64);
} else {
if (dll_name.find('.') == (size_t)-1)
dll_name += ".dll";
sdk_name = string_format("vmprotectsdk%d.dll", (file.cpu_address_size() == osDWord) ? 32 : 64);
}
if (dll_name.compare(sdk_name) == 0) {
is_sdk_ = true;
for (i = 0; i < count(); i++) {
func = item(i);
const ImportInfo *import_info = owner()->GetSDKInfo(func->name());
if (import_info) {
func->set_type(import_info->type);
if (import_info->options & ioHasCompilationType) {
func->include_option(ioHasCompilationType);
func->set_compilation_type(import_info->compilation_type);
if (import_info->options & ioLockToKey)
func->include_option(ioLockToKey);
}
}
}
} else {
size_t c;
const ImportInfo *import_info;
if (dll_name.compare("kernel32.dll") == 0) {
import_info = kernel32_info;
c = _countof(kernel32_info);
} else if (dll_name.compare("user32.dll") == 0) {
import_info = user32_info;
c = _countof(user32_info);
} else if (dll_name.compare("msvbvm50.dll") == 0 || dll_name.compare("msvbvm60.dll") == 0) {
import_info = msvbvm_info;
c = _countof(msvbvm_info);
} else {
import_info = default_info;
c = _countof(default_info);
}
if (import_info) {
for (i = 0; i < count(); i++) {
func = item(i);
for (j = 0; j < c; j++) {
if (func->name().compare(import_info[j].name) == 0) {
func->set_type(import_info[j].type);
if (import_info[j].options & ioNative)
func->include_option(ioNative);
if (import_info[j].options & ioNoReturn)
func->include_option(ioNoReturn);
break;
}
}
}
}
}
return true;
}
bool PEImport::FreeByManager(MemoryManager &manager, bool free_iat)
{
if (!name_address_)
return false;
manager.Add(name_address_, name_.size() + 1);
for (size_t i = 0; i < count(); i++) {
item(i)->FreeByManager(manager, free_iat);
}
if (original_first_thunk_address_ && original_first_thunk_address_ != first_thunk_address_)
manager.Add(original_first_thunk_address_, count() * OperandSizeToValue(manager.owner()->cpu_address_size()));
return true;
}
void PEImport::Rebase(uint64_t delta_base)
{
BaseImport::Rebase(delta_base);
if (name_address_)
name_address_ += delta_base;
if (original_first_thunk_address_)
original_first_thunk_address_ += delta_base;
if (first_thunk_address_)
first_thunk_address_ += delta_base;
}
PEImportFunction *PEImport::Add(uint64_t address, APIType type, MapFunction *map_function)
{
PEImportFunction *import_function = new PEImportFunction(this, address, type, map_function);
AddObject(import_function);
return import_function;
}
void PEImport::WriteToFile(PEArchitecture &file) const
{
IMAGE_IMPORT_DESCRIPTOR import_descriptor;
import_descriptor.u.OriginalFirstThunk = original_first_thunk_address_ ? static_cast<uint32_t>(original_first_thunk_address_ - file.image_base()) : 0;
import_descriptor.TimeDateStamp = time_stamp_;
import_descriptor.ForwarderChain = forwarder_chain_;
import_descriptor.Name = static_cast<uint32_t>(name_address_ - file.image_base());
import_descriptor.FirstThunk = first_thunk_address_ ? static_cast<uint32_t>(first_thunk_address_ - file.image_base()) : 0;
file.Write(&import_descriptor, sizeof(import_descriptor));
}
/**
* PEImportList
*/
PEImportList::PEImportList(PEArchitecture *owner)
: BaseImportList(owner), address_(0)
{
}
PEImportList::PEImportList(PEArchitecture *owner, const PEImportList &src)
: BaseImportList(owner, src)
{
address_ = src.address_;
}
PEImportList *PEImportList::Clone(PEArchitecture *owner) const
{
PEImportList *import_list = new PEImportList(owner, *this);
return import_list;
}
PEImport *PEImportList::item(size_t index) const
{
return reinterpret_cast<PEImport *>(BaseImportList::item(index));
}
PEImportFunction *PEImportList::GetFunctionByAddress(uint64_t address) const
{
return reinterpret_cast<PEImportFunction*>(BaseImportList::GetFunctionByAddress(address));
}
void PEImportList::ReadFromFile(PEArchitecture &file, PEDirectory &dir)
{
if (!dir.address())
return;
address_ = dir.address();
if (!file.AddressSeek(address_))
throw std::runtime_error("Format error");
while (true) {
PEImport *imp = new PEImport(this);
if (!imp->ReadFromFile(file)) {
delete imp;
break;
}
AddObject(imp);
}
}
void PEImportList::WriteToFile(PEArchitecture &file, bool skip_sdk) const
{
PEDirectory *dir = file.command_list()->GetCommandByType(IMAGE_DIRECTORY_ENTRY_IMPORT);
if (!dir)
return;
if (!file.AddressSeek(dir->address()))
return;
for (size_t i = 0; i < count(); i++) {
PEImport *import = item(i);
if (skip_sdk && import->is_sdk())
continue;
import->WriteToFile(file);
}
IMAGE_IMPORT_DESCRIPTOR import_descriptor = IMAGE_IMPORT_DESCRIPTOR();
file.Write(&import_descriptor, sizeof(import_descriptor));
}
void PEImportList::FreeByManager(MemoryManager &manager, bool free_iat)
{
if (!address_)
return;
size_t c = 0;
for (size_t i = 0; i < count(); i++) {
if (item(i)->FreeByManager(manager, free_iat))
c++;
}
manager.Add(address_, c * sizeof(IMAGE_IMPORT_DESCRIPTOR));
}
void PEImportList::Rebase(uint64_t delta_base)
{
if (!address_)
return;
BaseImportList::Rebase(delta_base);
address_ += delta_base;
}
PEImport *PEImportList::AddSDK()
{
PEImport *sdk = new PEImport(this, true);
AddObject(sdk);
return sdk;
}
/**
* PEDelayImportFunction
*/
PEDelayImportFunction::PEDelayImportFunction(PEDelayImport *owner)
: IObject(), owner_(owner), is_ordinal_(false), ordinal_(0)
{
}
PEDelayImportFunction::PEDelayImportFunction(PEDelayImport *owner, const PEDelayImportFunction &src)
: IObject(), owner_(owner)
{
name_ = src.name_;
is_ordinal_ = src.is_ordinal_;
ordinal_ = src.ordinal_;
}
PEDelayImportFunction::~PEDelayImportFunction()
{
if (owner_)
owner_->RemoveObject(this);
}
PEDelayImportFunction *PEDelayImportFunction::Clone(PEDelayImport *owner) const
{
PEDelayImportFunction *func = new PEDelayImportFunction(owner, *this);
return func;
}
bool PEDelayImportFunction::ReadFromFile(PEArchitecture &file, uint64_t add_value)
{
uint64_t name_address;
if (file.cpu_address_size() == osDWord) {
IMAGE_THUNK_DATA32 thunk;
file.Read(&thunk, sizeof(thunk));
name_address = thunk.u1.AddressOfData;
if (!name_address)
return false;
is_ordinal_ = IMAGE_SNAP_BY_ORDINAL32(name_address);
} else {
IMAGE_THUNK_DATA64 thunk;
file.Read(&thunk, sizeof(thunk));
name_address = thunk.u1.AddressOfData;
if (!name_address)
return false;
is_ordinal_ = IMAGE_SNAP_BY_ORDINAL64(name_address);
}
if (is_ordinal_) {
ordinal_ = IMAGE_ORDINAL32(name_address);
name_address = 0;
name_ = string_format("Ordinal: %.4X", ordinal_);
} else {
name_address += add_value;
uint64_t pos = file.Tell();
if (!file.AddressSeek(name_address + sizeof(uint16_t)))
throw std::runtime_error("Format error");
name_ = file.ReadString();
file.Seek(pos);
}
return true;
}
/**
* PEDelayImport