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#include <stdlib.h>
#include <string.h>
#include <cstdint>
#include <map>
#ifndef _MSC_VER
#include <cxxabi.h>
#endif
#include "universalview.h"
#include "universaltransform.h"
#include "machoview.h"
#include "rapidjsonwrapper.h"
using namespace BinaryNinja;
using namespace std;
static UniversalViewType* g_universalViewType = nullptr;
void BinaryNinja::InitUniversalViewType()
{
static UniversalViewType type;
BinaryViewType::Register(&type);
g_universalViewType = &type;
Ref<Settings> settings = Settings::Instance();
settings->RegisterSetting("files.universal.architecturePreference",
R"({
"title" : "Universal Mach-O Architecture Preference",
"type" : "array",
"sorted" : false,
"default" : [],
"description" : "Architectures to prefer when loading Universal (fat) Mach-O archives, in order of priority. Determines which architecture is pre-selected in the architecture picker, or loaded automatically when prompting is set to 'automatic' or 'never'.",
"ignore" : ["SettingsProjectScope", "SettingsResourceScope"]
})");
const map<pair<cpu_type_t, cpu_subtype_t>, string>& cpuArchNames = UniversalTransform::GetArchitectures();
set<string> names;
for (const auto& [key, name] : cpuArchNames)
names.insert(name);
vector<string> archNames(names.begin(), names.end());
settings->UpdateProperty("files.universal.architecturePreference", "enum", archNames);
}
Ref<BinaryView> UniversalViewType::Create(BinaryView* data)
{
try
{
return new UniversalView(data);
}
catch (std::exception&)
{
return nullptr;
}
}
bool UniversalViewType::IsTypeValidForData(BinaryView* data)
{
DataBuffer sig = data->ReadBuffer(0, 4);
if (sig.GetLength() != 4)
return false;
uint32_t magic = ToBE32(*(uint32_t*)sig.GetData());
if ((magic == FAT_MAGIC) || (magic == FAT_MAGIC_64))
return true;
return false;
}
bool UniversalViewType::ParseHeaders(BinaryView* data, FatHeader& fatHeader, vector<FatArch64>& fatArchEntries, bool& isFat64, string& errorMsg)
{
return UniversalTransform::ParseHeaders(data, fatHeader, fatArchEntries, isFat64, errorMsg);
}
Ref<Settings> UniversalViewType::GetLoadSettingsForData(BinaryView* data)
{
FatHeader fatHeader;
vector<FatArch64> fatArchEntries;
bool isFat64;
string errorMsg;
if (!g_universalViewType->ParseHeaders(data, fatHeader, fatArchEntries, isFat64, errorMsg))
return nullptr;
if (!fatArchEntries.size()) // TODO other validation?
return nullptr;
Ref<Settings> settings = Settings::Instance(GetUniqueIdentifierString());
settings->RegisterGroup("loader", "Load Options");
settings->RegisterSetting("loader.universal.architectures",
R"({
"title" : "Universal Mach-O Multi-Architecture Binary Description",
"type" : "string",
"default" : "[]",
"description" : "Describes the available object files in the Universal Multi-Architecture binary.",
"readOnly" : true
})");
Ref<Settings> entrySettings = Settings::Instance(GetUniqueIdentifierString());
entrySettings->RegisterGroup("loader", "Load Options");
entrySettings->RegisterSetting("loader.macho.universalImageOffset",
R"({
"title" : "Universal Mach-O Object File Offset",
"type" : "number",
"default" : 0,
"description" : "The offset to the object file within the Universal Mach-O file.",
"minValue" : 0,
"maxValue" : 18446744073709551615,
"readOnly" : true
})");
rapidjson::Document entries(rapidjson::kArrayType);
int count = 0;
for (const auto& entry : fatArchEntries)
{
rapidjson::Value result(rapidjson::kObjectType);
bool is64Bit;
string archDesc = UniversalTransform::ArchitectureToString(entry.cputype, entry.cpusubtype, is64Bit);
string bitDesc = is64Bit ? "64-bit" : "32-bit";
result.AddMember("id", count++, entries.GetAllocator());
result.AddMember("architecture", archDesc, entries.GetAllocator());
result.AddMember("is64Bit", is64Bit, entries.GetAllocator());
result.AddMember("binaryViewType", "Mach-O", entries.GetAllocator());
result.AddMember("description", "Mach-O " + bitDesc + " executable " + archDesc, entries.GetAllocator());
result.AddMember("offset", ToLE64(entry.offset), entries.GetAllocator());
result.AddMember("size", ToLE64(entry.size), entries.GetAllocator());
entrySettings->UpdateProperty("loader.macho.universalImageOffset", "default", ToLE64(entry.offset));
result.AddMember("loadSchema", entrySettings->SerializeSchema(), entries.GetAllocator());
entries.PushBack(result, entries.GetAllocator());
}
rapidjson::StringBuffer buffer;
rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
entries.Accept(writer);
settings->UpdateProperty("loader.universal.architectures", "default", buffer.GetString());
return settings;
}
UniversalView::UniversalView(BinaryView* data, bool parseOnly): BinaryView("Universal", data->GetFile(), data)
{
FatHeader fatHeader;
vector<FatArch64> fatArchEntries;
bool isFat64;
string errorMsg;
if (!g_universalViewType->ParseHeaders(data, fatHeader, fatArchEntries, isFat64, errorMsg))
throw MachoFormatException(errorMsg);
if (parseOnly)
return;
// Add Universal file header type info
StructureBuilder fatHeaderBuilder;
fatHeaderBuilder.AddMember(Type::IntegerType(4, false), "magic");
fatHeaderBuilder.AddMember(Type::IntegerType(4, false), "nfat_arch");
Ref<Structure> fatHeaderStruct = fatHeaderBuilder.Finalize();
QualifiedName headerName = string("fat_header");
string headerTypeId = Type::GenerateAutoTypeId("macho", headerName);
Ref<Type> fatHeaderType = Type::StructureType(fatHeaderStruct);
QualifiedName rawHeaderName = DefineType(headerTypeId, headerName, fatHeaderType);
DefineDataVariable(0, Type::NamedType(this, rawHeaderName));
DefineAutoSymbol(new Symbol(DataSymbol, "__fat_header", 0, LocalBinding));
EnumerationBuilder cpuTypeBuilder;
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_ANY", MACHO_CPU_TYPE_ANY);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_VAX", MACHO_CPU_TYPE_VAX);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_MC680x0", MACHO_CPU_TYPE_MC680x0);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_X86", MACHO_CPU_TYPE_X86);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_X86_64", MACHO_CPU_TYPE_X86_64);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_MIPS", MACHO_CPU_TYPE_MIPS);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_MC98000", MACHO_CPU_TYPE_MC98000);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_HPPA", MACHO_CPU_TYPE_HPPA);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_ARM", MACHO_CPU_TYPE_ARM);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_ARM64", MACHO_CPU_TYPE_ARM64);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_ARM64_32", MACHO_CPU_TYPE_ARM64_32);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_MC88000", MACHO_CPU_TYPE_MC88000);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_SPARC", MACHO_CPU_TYPE_SPARC);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_I860", MACHO_CPU_TYPE_I860);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_ALPHA", MACHO_CPU_TYPE_ALPHA);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_POWERPC", MACHO_CPU_TYPE_POWERPC);
cpuTypeBuilder.AddMemberWithValue("CPU_TYPE_POWERPC64", MACHO_CPU_TYPE_POWERPC64);
Ref<Enumeration> cpuTypeEnum = cpuTypeBuilder.Finalize();
Ref<Type> cpuTypeEnumType = Type::EnumerationType(nullptr, cpuTypeEnum, 4, false);
string cpuTypeEnumName = "cpu_type_t";
string cpuTypeEnumId = Type::GenerateAutoTypeId("macho", cpuTypeEnumName);
QualifiedName rawCpuTypeEnumName = DefineType(cpuTypeEnumId, cpuTypeEnumName, cpuTypeEnumType);
StructureBuilder fatArchBuilder;
fatArchBuilder.AddMember(Type::NamedType(this, rawCpuTypeEnumName), "cputype");
fatArchBuilder.AddMember(Type::IntegerType(4, false), "cpusubtype");
if (isFat64)
{
fatArchBuilder.AddMember(Type::IntegerType(8, false), "offset");
fatArchBuilder.AddMember(Type::IntegerType(8, false), "size");
}
else
{
fatArchBuilder.AddMember(Type::IntegerType(4, false), "offset");
fatArchBuilder.AddMember(Type::IntegerType(4, false), "size");
}
fatArchBuilder.AddMember(Type::IntegerType(4, false), "align");
if (isFat64)
fatArchBuilder.AddMember(Type::IntegerType(4, false), "reserved");
Ref<Structure> fatArchStruct = fatArchBuilder.Finalize();
QualifiedName fatArchName = isFat64 ? string("fat_arch_64") : string("fat_arch");
string fatArchTypeId = Type::GenerateAutoTypeId("macho", fatArchName);
Ref<Type> fatArchType = Type::StructureType(fatArchStruct);
QualifiedName rawFatArchName = DefineType(fatArchTypeId, fatArchName, fatArchType);
DefineDataVariable(8, Type::ArrayType(Type::NamedType(this, rawFatArchName), fatHeader.nfat_arch));
DefineAutoSymbol(new Symbol(DataSymbol, "__fat_arch_entries", 8, LocalBinding));
}
UniversalView::~UniversalView()
{
}
bool UniversalView::Init()
{
// Disable analysis modules
// TODO: for now Raw and Universal views do this; possibly refactor
if (!m_file->IsBackedByDatabase(GetTypeName()))
{
Settings::Instance()->Set("analysis.linearSweep.autorun", false, this);
Settings::Instance()->Set("analysis.signatureMatcher.autorun", false, this);
Settings::Instance()->Set("analysis.pointerSweep.autorun", false, this);
}
AddAutoSegment(0, GetParentView()->GetLength(), 0, GetParentView()->GetLength(), SegmentReadable | SegmentWritable);
return true;
}
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