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pe_rtti_helper.cpp
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pe_rtti_helper.cpp
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#include "stdafx.h"
#include "pe_rtti_helper.h"
rtti_msvc_type_descriptor::rtti_msvc_type_descriptor()
: vtable_addr_rva(0), spare_rva(0) {}
rtti_msvc_type_descriptor::rtti_msvc_type_descriptor(const rtti_msvc_type_descriptor& type_desc) {
this->operator=(type_desc);
}
rtti_msvc_type_descriptor::~rtti_msvc_type_descriptor() {}
rtti_msvc_type_descriptor& rtti_msvc_type_descriptor::operator=(const rtti_msvc_type_descriptor& type_desc) {
this->vtable_addr_rva = type_desc.vtable_addr_rva;
this->spare_rva = type_desc.spare_rva;
this->name = type_desc.name;
return *this;
}
void rtti_msvc_type_descriptor::set_vtable_addr_rva(uint32_t rva) {
this->vtable_addr_rva = rva;
}
void rtti_msvc_type_descriptor::set_spare_rva(uint32_t rva) {
this->spare_rva = rva;
}
void rtti_msvc_type_descriptor::set_name(const std::string& name) {
this->name = name;
}
uint32_t rtti_msvc_type_descriptor::get_vtable_addr_rva() const {
return this->vtable_addr_rva;
}
uint32_t rtti_msvc_type_descriptor::get_spare_rva() const {
return this->spare_rva;
}
std::string& rtti_msvc_type_descriptor::get_name() {
return this->name;
}
const std::string& rtti_msvc_type_descriptor::get_name() const {
return this->name;
}
rtti_msvc_base_class_descriptor::rtti_msvc_base_class_descriptor()
: type_descriptor_addr_rva(0), num_contained_bases(0), mdisp(0), pdisp(0),
vdisp(0), attributes(0) , hierarchy_descriptor_ref(0) {}
rtti_msvc_base_class_descriptor::rtti_msvc_base_class_descriptor(const rtti_msvc_base_class_descriptor& base_class_desc) {
this->operator=(base_class_desc);
}
rtti_msvc_base_class_descriptor::~rtti_msvc_base_class_descriptor() {}
rtti_msvc_base_class_descriptor& rtti_msvc_base_class_descriptor::operator=(const rtti_msvc_base_class_descriptor& base_class_desc) {
this->type_descriptor_addr_rva = base_class_desc.type_descriptor_addr_rva;
this->num_contained_bases = base_class_desc.num_contained_bases;
this->mdisp = base_class_desc.mdisp;
this->pdisp = base_class_desc.pdisp;
this->vdisp = base_class_desc.vdisp;
this->attributes = base_class_desc.attributes;
this->hierarchy_descriptor_ref = base_class_desc.hierarchy_descriptor_ref;
return *this;
}
void rtti_msvc_base_class_descriptor::set_type_descriptor_addr_rva(uint32_t rva) {
this->type_descriptor_addr_rva = rva;
}
void rtti_msvc_base_class_descriptor::set_num_contained_bases(uint32_t rva) {
this->num_contained_bases = rva;
}
void rtti_msvc_base_class_descriptor::set_mdisp(uint32_t disp) {
this->mdisp = disp;
}
void rtti_msvc_base_class_descriptor::set_pdisp(uint32_t disp) {
this->pdisp = disp;
}
void rtti_msvc_base_class_descriptor::set_vdisp(uint32_t disp) {
this->vdisp = disp;
}
void rtti_msvc_base_class_descriptor::set_attributes(uint32_t attributes) {
this->attributes = attributes;
}
void rtti_msvc_base_class_descriptor::set_hierarchy_descriptor_ref(uint32_t ref) {
this->hierarchy_descriptor_ref = ref;
}
uint32_t rtti_msvc_base_class_descriptor::get_type_descriptor_addr_rva() const {
return this->type_descriptor_addr_rva;
}
uint32_t rtti_msvc_base_class_descriptor::get_num_contained_bases() const {
return this->num_contained_bases;
}
uint32_t rtti_msvc_base_class_descriptor::get_mdisp() const {
return this->mdisp;
}
uint32_t rtti_msvc_base_class_descriptor::get_pdisp() const {
return this->pdisp;
}
uint32_t rtti_msvc_base_class_descriptor::get_vdisp() const {
return this->vdisp;
}
uint32_t rtti_msvc_base_class_descriptor::get_attributes() const {
return this->attributes;
}
uint32_t rtti_msvc_base_class_descriptor::get_hierarchy_descriptor_ref() const {
return this->hierarchy_descriptor_ref;
}
rtti_msvc_class_hierarchy_descriptor::rtti_msvc_class_hierarchy_descriptor()
: signature(0), attributes(0), num_base_classes(0), base_class_array_addr_rva(0) {}
rtti_msvc_class_hierarchy_descriptor::rtti_msvc_class_hierarchy_descriptor(const rtti_msvc_class_hierarchy_descriptor& class_hier_desc) {
this->operator=(class_hier_desc);
}
rtti_msvc_class_hierarchy_descriptor::~rtti_msvc_class_hierarchy_descriptor() {}
rtti_msvc_class_hierarchy_descriptor& rtti_msvc_class_hierarchy_descriptor::operator=(const rtti_msvc_class_hierarchy_descriptor& class_hier_desc) {
this->signature = class_hier_desc.signature;
this->attributes = class_hier_desc.attributes;
this->num_base_classes = class_hier_desc.num_base_classes;
this->base_class_array_addr_rva = class_hier_desc.base_class_array_addr_rva;
this->base_class_entries = class_hier_desc.base_class_entries;
return *this;
}
void rtti_msvc_class_hierarchy_descriptor::set_signature(uint32_t sign) {
this->signature = sign;
}
void rtti_msvc_class_hierarchy_descriptor::set_attributes(uint32_t attributes) {
this->attributes = attributes;
}
void rtti_msvc_class_hierarchy_descriptor::set_num_base_classes(uint32_t num) {
this->num_base_classes = num;
}
void rtti_msvc_class_hierarchy_descriptor::set_base_class_array_addr_rva(uint32_t base_class_rva) {
this->base_class_array_addr_rva = base_class_rva;
}
uint32_t rtti_msvc_class_hierarchy_descriptor::get_signature() const {
return this->signature;
}
uint32_t rtti_msvc_class_hierarchy_descriptor::get_attributes() const {
return this->attributes;
}
uint32_t rtti_msvc_class_hierarchy_descriptor::get_num_base_classes() const {
return this->num_base_classes;
}
uint32_t rtti_msvc_class_hierarchy_descriptor::get_base_class_array_addr_rva() const {
return this->base_class_array_addr_rva;
}
std::vector<uint32_t>& rtti_msvc_class_hierarchy_descriptor::get_base_class_entries() {
return this->base_class_entries;
}
const std::vector<uint32_t>& rtti_msvc_class_hierarchy_descriptor::get_base_class_entries() const {
return this->base_class_entries;
}
rtti_msvc_complete_object_locator::rtti_msvc_complete_object_locator()
:signature(0), vtable_offset(0), cd_offset(0), type_descriptor_addr_rva(0), class_descriptor_addr_rva(0), object_base_rva(0) {}
rtti_msvc_complete_object_locator::rtti_msvc_complete_object_locator(const rtti_msvc_complete_object_locator& obj_loc) {
this->operator=(obj_loc);
}
rtti_msvc_complete_object_locator::~rtti_msvc_complete_object_locator() {}
rtti_msvc_complete_object_locator& rtti_msvc_complete_object_locator::operator=(const rtti_msvc_complete_object_locator& obj_loc) {
this->signature = obj_loc.signature;
this->vtable_offset = obj_loc.vtable_offset;
this->cd_offset = obj_loc.cd_offset;
this->type_descriptor_addr_rva = obj_loc.type_descriptor_addr_rva;
this->class_descriptor_addr_rva = obj_loc.class_descriptor_addr_rva;
this->object_base_rva = obj_loc.object_base_rva;
return *this;
}
void rtti_msvc_complete_object_locator::set_signature(uint32_t sign) {
this->signature = sign;
}
void rtti_msvc_complete_object_locator::set_vtable_offset(uint32_t vtable_offs) {
this->vtable_offset = vtable_offs;
}
void rtti_msvc_complete_object_locator::set_cd_offset(uint32_t offset) {
this->cd_offset = offset;
}
void rtti_msvc_complete_object_locator::set_type_descriptor_addr_rva(uint32_t type_descriptor_rva) {
this->type_descriptor_addr_rva = type_descriptor_rva;
}
void rtti_msvc_complete_object_locator::set_class_descriptor_addr_rva(uint32_t class_descriptor_rva) {
this->class_descriptor_addr_rva = class_descriptor_rva;
}
void rtti_msvc_complete_object_locator::set_object_base_rva(uint32_t object_base) {
this->object_base_rva = object_base;
}
uint32_t rtti_msvc_complete_object_locator::get_signature() {
return this->signature;
}
uint32_t rtti_msvc_complete_object_locator::get_vtable_offset() {
return this->vtable_offset;
}
uint32_t rtti_msvc_complete_object_locator::get_cd_offset() {
return this->cd_offset;
}
uint32_t rtti_msvc_complete_object_locator::get_type_descriptor_addr_rva() {
return this->type_descriptor_addr_rva;
}
uint32_t rtti_msvc_complete_object_locator::get_class_descriptor_addr_rva() {
return this->class_descriptor_addr_rva;
}
uint32_t rtti_msvc_complete_object_locator::get_object_base_rva() {
return this->object_base_rva;
}
bool check_msvc_x32_rtti(const pe_image& image, uint32_t rtti_complete_object_locators_rva) {
pe_image_io image_io(image);
msvc_rtti_complete_object_locator obj_loc;
if (image_io.set_image_offset(rtti_complete_object_locators_rva)
.read(&obj_loc, sizeof(obj_loc)) != enma_io_success) {
return false;
}
uint32_t image_base = (uint32_t)image.get_image_base();
uint32_t hi_address = image_io.seek_to_end().get_image_offset();
if (!obj_loc.type_descriptor_addr ||
(obj_loc.type_descriptor_addr < image_base ||
(obj_loc.type_descriptor_addr - image_base) >= hi_address)) {
return false;
}
if (!obj_loc.class_descriptor_addr ||
(obj_loc.class_descriptor_addr < image_base ||
(obj_loc.class_descriptor_addr - image_base) >= hi_address)) {
return false;
}
std::vector<uint8_t> type_desc_raw;
if (image_io.set_image_offset(obj_loc.type_descriptor_addr - image_base)
.read(type_desc_raw, sizeof(msvc_rtti_32_type_descriptor) + 3) != enma_io_success) {
return false;
}
msvc_rtti_32_type_descriptor *type_desc = (msvc_rtti_32_type_descriptor*)type_desc_raw.data();
if (!type_desc->vtable_addr ||
(type_desc->vtable_addr < image_base ||
(type_desc->vtable_addr - image_base) >= hi_address)) {
return false;
}
if (type_desc->spare &&
(type_desc->spare < image_base ||
(type_desc->spare - image_base) >= hi_address)) {
return false;
}
if (type_desc->name[0] != '.' &&
type_desc->name[1] != '?' &&
type_desc->name[2] != 'A') {
return false;
}
return true;
}
bool check_msvc_x64_rtti(const pe_image& image, uint32_t rtti_complete_object_locators_rva) {
pe_image_io image_io(image);
msvc_rtti_complete_object_locator obj_loc;
if (image_io.set_image_offset(rtti_complete_object_locators_rva)
.read(&obj_loc, sizeof(obj_loc)) != enma_io_success) {
return false;
}
uint64_t image_base = image.get_image_base();
uint32_t hi_address = image_io.seek_to_end().get_image_offset();
if (!obj_loc.type_descriptor_addr ||
obj_loc.type_descriptor_addr >= hi_address) {
return false;
}
if (!obj_loc.class_descriptor_addr
|| obj_loc.class_descriptor_addr >= hi_address) {
return false;
}
if (!obj_loc.object_base
|| obj_loc.object_base >= hi_address) {
return false;
}
std::vector<uint8_t> type_desc_raw;
if (image_io.set_image_offset(obj_loc.type_descriptor_addr)
.read(type_desc_raw, sizeof(msvc_rtti_64_type_descriptor) + 3) != enma_io_success) {
return false;
}
msvc_rtti_64_type_descriptor *type_desc = (msvc_rtti_64_type_descriptor*)type_desc_raw.data();
if (!type_desc->vtable_addr
|| (type_desc->vtable_addr - image_base) >= hi_address) {
return false;
}
if (type_desc->spare &&
(type_desc->spare - image_base) >= hi_address) {
return false;
}
if (type_desc->name[0] != '.' &&
type_desc->name[1] != '?' &&
type_desc->name[2] != 'A') {
return false;
}
return true;
}
std::set<uint32_t> find_msvc_x32_rtti_complete_object_locators(const pe_image_full& image_full) {
std::set<uint32_t> result_;
pe_image_io image_io(image_full.get_image());
for (auto& rel : image_full.get_relocations().get_entries()) {
uint32_t reloc_data;
if (image_io.set_image_offset(rel.relative_virtual_address).read(&reloc_data, sizeof(reloc_data)) != enma_io_success) {
continue;
}
if (result_.find(uint32_t(reloc_data - image_full.get_image().get_image_base())) != result_.end()) {
continue;
}
pe_section * section = image_full.get_image().get_section_by_va(reloc_data);
if (!section || !section->get_size_of_raw_data()) { continue; }
if (check_msvc_x32_rtti(image_full.get_image(), uint32_t(reloc_data - image_full.get_image().get_image_base()))) {
result_.insert(uint32_t(reloc_data - image_full.get_image().get_image_base()));
}
}
return result_;
}
std::set<uint32_t> find_msvc_x64_rtti_complete_object_locators(const pe_image_full& image_full) {
std::set<uint32_t> result_;
pe_image_io image_io(image_full.get_image());
for (auto& rel : image_full.get_relocations().get_entries()) {
uint64_t reloc_data;
if (image_io.set_image_offset(rel.relative_virtual_address).read(&reloc_data, sizeof(reloc_data)) != enma_io_success) {
continue;
}
if (result_.find(uint32_t(reloc_data - image_full.get_image().get_image_base())) != result_.end()) {
continue;
}
pe_section * section = image_full.get_image().get_section_by_va(reloc_data);
if (!section || !section->get_size_of_raw_data()) { continue; }
if (check_msvc_x64_rtti(image_full.get_image(), uint32_t(reloc_data - image_full.get_image().get_image_base()))) {
result_.insert(uint32_t(reloc_data - image_full.get_image().get_image_base()));
}
}
return result_;
}
bool msvc_parse_type_descriptor_32(pe_image_io& image_io, msvc_rtti_desc& msvc_rtti, uint32_t rva, uint32_t image_base) {
rtti_msvc_type_descriptor type_desc;
msvc_rtti_32_type_descriptor type_;
if (image_io.set_image_offset(rva)
.read(&type_, sizeof(type_)) != enma_io_success) {
return false;
}
if (type_.vtable_addr && type_.vtable_addr < image_base) {
return false;
}
if (type_.vtable_addr) {
type_desc.set_vtable_addr_rva(type_.vtable_addr - image_base);
}
else {
type_desc.set_vtable_addr_rva(0);
}
if (type_.spare && type_.spare < image_base) {
return false;
}
if (type_.spare) {
type_desc.set_spare_rva(type_.spare - image_base);
}
else {
type_desc.set_spare_rva(0);
}
std::string name;
if (image_io.read_string(name) != enma_io_success) {
return false;
}
else {
type_desc.set_name(name);
}
msvc_rtti.type_descriptor_entries[rva] = type_desc;
return true;
}
bool msvc_parse_base_class_descriptor_32(pe_image_io& image_io, msvc_rtti_desc& msvc_rtti, uint32_t rva, uint32_t image_base) {
msvc_rtti_base_class_descriptor base_class_desc_;
if (image_io.set_image_offset(rva)
.read(&base_class_desc_, sizeof(base_class_desc_)) != enma_io_success) {
return false;
}
if ((base_class_desc_.type_descriptor_addr && (base_class_desc_.type_descriptor_addr < image_base)) ||
(base_class_desc_.type_descriptor_addr && !msvc_parse_type_descriptor_32(image_io, msvc_rtti,
base_class_desc_.type_descriptor_addr - image_base, image_base))) {
return false;
}
rtti_msvc_base_class_descriptor base_class_desc;
if (base_class_desc_.type_descriptor_addr) {
base_class_desc.set_type_descriptor_addr_rva(base_class_desc_.type_descriptor_addr - image_base);
}
else {
base_class_desc.set_type_descriptor_addr_rva(0);
}
base_class_desc.set_num_contained_bases(base_class_desc_.num_contained_bases);
base_class_desc.set_mdisp(base_class_desc_.where.mdisp);
base_class_desc.set_pdisp(base_class_desc_.where.pdisp);
base_class_desc.set_vdisp(base_class_desc_.where.vdisp);
base_class_desc.set_attributes(base_class_desc_.attributes);
base_class_desc.set_hierarchy_descriptor_ref(base_class_desc_.hierarchy_descriptor_ref);
msvc_rtti.base_class_descriptor_entries[rva] = base_class_desc;
return true;
}
bool msvc_parse_class_hierarchy_descriptor_32(pe_image_io& image_io, msvc_rtti_desc& msvc_rtti, uint32_t rva, uint32_t image_base) {
msvc_rtti_class_hierarchy_descriptor hierarchy_desc_;
if (image_io.set_image_offset(rva)
.read(&hierarchy_desc_, sizeof(hierarchy_desc_)) != enma_io_success) {
return false;
}
std::vector<uint32_t> base_addresses;
base_addresses.resize(hierarchy_desc_.num_base_classes);
if ((hierarchy_desc_.base_class_array_addr && (hierarchy_desc_.base_class_array_addr < image_base)) ||
(hierarchy_desc_.base_class_array_addr && image_io.set_image_offset(hierarchy_desc_.base_class_array_addr - image_base)
.read(base_addresses.data(), hierarchy_desc_.num_base_classes * sizeof(uint32_t)) != enma_io_success)) {
return false;
}
for (uint32_t base_address : base_addresses) {
if ((base_address && (base_address < image_base)) ||
(base_address && !msvc_parse_base_class_descriptor_32(image_io, msvc_rtti, (base_address - image_base), image_base))) {
return false;
}
}
rtti_msvc_class_hierarchy_descriptor hierarchy_desc;
hierarchy_desc.set_signature(hierarchy_desc_.signature);
hierarchy_desc.set_attributes(hierarchy_desc_.attributes);
hierarchy_desc.set_num_base_classes(hierarchy_desc_.num_base_classes);
if (hierarchy_desc_.base_class_array_addr) {
hierarchy_desc.set_base_class_array_addr_rva(hierarchy_desc_.base_class_array_addr - image_base);
}
else {
hierarchy_desc.set_base_class_array_addr_rva(0);
}
for (uint32_t base_address : base_addresses) {
if (base_address) {
hierarchy_desc.get_base_class_entries().push_back(base_address - image_base);
}
}
msvc_rtti.class_hierarchy_descriptor_entries[rva] = hierarchy_desc;
return true;
}
bool msvc_parse_complete_object_locator_32(const pe_image_full& image_full, msvc_rtti_desc& msvc_rtti, uint32_t rva) {
pe_image_io image_io(image_full.get_image());
uint32_t image_base = (uint32_t)image_full.get_image().get_image_base();
msvc_rtti_complete_object_locator object_locator_;
if (image_io.set_image_offset(rva)
.read(&object_locator_, sizeof(object_locator_) - sizeof(uint32_t)) != enma_io_success) {
return false;
}
if ((object_locator_.type_descriptor_addr && (object_locator_.type_descriptor_addr < image_base)) ||
(object_locator_.type_descriptor_addr && !msvc_parse_type_descriptor_32(image_io, msvc_rtti, object_locator_.type_descriptor_addr - image_base, image_base))) {
return false;
}
if ((object_locator_.class_descriptor_addr && (object_locator_.class_descriptor_addr < image_base)) ||
(object_locator_.class_descriptor_addr && !msvc_parse_class_hierarchy_descriptor_32(image_io, msvc_rtti, object_locator_.class_descriptor_addr - image_base, image_base))) {
return false;
}
rtti_msvc_complete_object_locator object_locator;
object_locator.set_signature(object_locator_.signature);
object_locator.set_vtable_offset(object_locator_.vtable_offset);
object_locator.set_cd_offset(object_locator_.cd_offset);
if (object_locator_.type_descriptor_addr) {
object_locator.set_type_descriptor_addr_rva(object_locator_.type_descriptor_addr - image_base);
}
else {
object_locator.set_type_descriptor_addr_rva(0);
}
if (object_locator_.class_descriptor_addr) {
object_locator.set_class_descriptor_addr_rva(object_locator_.class_descriptor_addr - image_base);
}
else {
object_locator.set_class_descriptor_addr_rva(0);
}
object_locator.set_object_base_rva(0);
msvc_rtti.complete_object_locator_entries[rva] = object_locator;
return true;
}
bool msvc_parse_type_descriptor_64(pe_image_io& image_io, msvc_rtti_desc& msvc_rtti, uint32_t rva, uint64_t image_base) {
rtti_msvc_type_descriptor type_desc;
msvc_rtti_64_type_descriptor type_;
if (image_io.set_image_offset(rva)
.read(&type_, sizeof(type_)) != enma_io_success) {
return false;
}
if (type_.vtable_addr && type_.vtable_addr < image_base) {
return false;
}
if (type_.vtable_addr) {
type_desc.set_vtable_addr_rva(uint32_t(type_.vtable_addr - image_base));
}
else {
type_desc.set_vtable_addr_rva(0);
}
if (type_.spare && type_.spare < image_base) {
return false;
}
if (type_.spare) {
type_desc.set_spare_rva(uint32_t(type_.spare - image_base));
}
else {
type_desc.set_spare_rva(0);
}
std::string name;
if (image_io.read_string(name) != enma_io_success) {
return false;
}
else {
type_desc.set_name(name);
}
msvc_rtti.type_descriptor_entries[rva] = type_desc;
return true;
}
bool msvc_parse_base_class_descriptor_64(pe_image_io& image_io, msvc_rtti_desc& msvc_rtti, uint32_t rva, uint64_t image_base) {
msvc_rtti_base_class_descriptor base_class_desc_;
if (image_io.set_image_offset(rva)
.read(&base_class_desc_, sizeof(base_class_desc_)) != enma_io_success) {
return false;
}
if (base_class_desc_.type_descriptor_addr &&
!msvc_parse_type_descriptor_64(image_io, msvc_rtti, base_class_desc_.type_descriptor_addr, image_base)) {
return false;
}
rtti_msvc_base_class_descriptor base_class_desc;
if (base_class_desc_.type_descriptor_addr) {
base_class_desc.set_type_descriptor_addr_rva(base_class_desc_.type_descriptor_addr);
}
else {
base_class_desc.set_type_descriptor_addr_rva(0);
}
base_class_desc.set_num_contained_bases(base_class_desc_.num_contained_bases);
base_class_desc.set_mdisp(base_class_desc_.where.mdisp);
base_class_desc.set_pdisp(base_class_desc_.where.pdisp);
base_class_desc.set_vdisp(base_class_desc_.where.vdisp);
base_class_desc.set_attributes(base_class_desc_.attributes);
if (base_class_desc_.hierarchy_descriptor_ref) {
base_class_desc.set_hierarchy_descriptor_ref(base_class_desc_.hierarchy_descriptor_ref);
}
else {
base_class_desc.set_hierarchy_descriptor_ref(0);
}
msvc_rtti.base_class_descriptor_entries[rva] = base_class_desc;
return true;
}
bool msvc_parse_class_hierarchy_descriptor_64(pe_image_io& image_io, msvc_rtti_desc& msvc_rtti, uint32_t rva, uint64_t image_base) {
msvc_rtti_class_hierarchy_descriptor hierarchy_desc_;
if (image_io.set_image_offset(rva)
.read(&hierarchy_desc_, sizeof(hierarchy_desc_)) != enma_io_success) {
return false;
}
std::vector<uint32_t> base_addresses;
base_addresses.resize(hierarchy_desc_.num_base_classes);
if (image_io.set_image_offset(hierarchy_desc_.base_class_array_addr)
.read(base_addresses.data(), hierarchy_desc_.num_base_classes * sizeof(uint32_t)) != enma_io_success) {
return false;
}
for (uint32_t base_address : base_addresses) {
if (base_address &&
!msvc_parse_base_class_descriptor_64(image_io, msvc_rtti, base_address, image_base)) {
return false;
}
}
rtti_msvc_class_hierarchy_descriptor hierarchy_desc;
hierarchy_desc.set_signature(hierarchy_desc_.signature);
hierarchy_desc.set_attributes(hierarchy_desc_.attributes);
hierarchy_desc.set_num_base_classes(hierarchy_desc_.num_base_classes);
if (hierarchy_desc_.base_class_array_addr) {
hierarchy_desc.set_base_class_array_addr_rva(hierarchy_desc_.base_class_array_addr);
}
else {
hierarchy_desc.set_base_class_array_addr_rva(0);
}
for (uint32_t base_address : base_addresses) {
if (base_address) {
hierarchy_desc.get_base_class_entries().push_back(base_address);
}
}
msvc_rtti.class_hierarchy_descriptor_entries[rva] = hierarchy_desc;
return true;
}
bool msvc_parse_complete_object_locator_64(const pe_image_full& image_full, msvc_rtti_desc& msvc_rtti, uint32_t rva) {
pe_image_io image_io(image_full.get_image());
uint64_t image_base = image_full.get_image().get_image_base();
msvc_rtti_complete_object_locator object_locator_;
if (image_io.set_image_offset(rva)
.read(&object_locator_, sizeof(object_locator_)) != enma_io_success) {
return false;
}
if (object_locator_.type_descriptor_addr &&
!msvc_parse_type_descriptor_64(image_io, msvc_rtti, object_locator_.type_descriptor_addr, image_base)) {
return false;
}
if (object_locator_.class_descriptor_addr &&
!msvc_parse_class_hierarchy_descriptor_64(image_io, msvc_rtti, object_locator_.class_descriptor_addr, image_base)) {
return false;
}
rtti_msvc_complete_object_locator object_locator;
object_locator.set_signature(object_locator_.signature);
object_locator.set_vtable_offset(object_locator_.vtable_offset);
object_locator.set_cd_offset(object_locator_.cd_offset);
if (object_locator_.type_descriptor_addr) {
object_locator.set_type_descriptor_addr_rva(object_locator_.type_descriptor_addr);
}
else {
object_locator.set_type_descriptor_addr_rva(0);
}
if (object_locator_.class_descriptor_addr) {
object_locator.set_class_descriptor_addr_rva(object_locator_.class_descriptor_addr);
}
else {
object_locator.set_class_descriptor_addr_rva(0);
}
if (object_locator_.object_base) {
object_locator.set_object_base_rva(object_locator_.object_base);
}
else {
object_locator.set_object_base_rva(0);
}
msvc_rtti.complete_object_locator_entries[rva] = object_locator;
return true;
}
void get_runtime_type_information(_In_ const pe_image_full& image_full, msvc_rtti_desc& msvc_rtti) {
msvc_rtti.complete_object_locator_entries.clear();
msvc_rtti.class_hierarchy_descriptor_entries.clear();
msvc_rtti.base_class_descriptor_entries.clear();
msvc_rtti.type_descriptor_entries.clear();
if (image_full.get_image().is_x32_image()) {
std::set<uint32_t> msvc_rtti_loc_rvas = find_msvc_x32_rtti_complete_object_locators(image_full);
for (uint32_t loc_rva : msvc_rtti_loc_rvas) {
msvc_rtti_desc pre_msvc_rtti;
if (msvc_parse_complete_object_locator_32(image_full, pre_msvc_rtti, loc_rva)) {
for (auto& entry : pre_msvc_rtti.complete_object_locator_entries) {
if (msvc_rtti.complete_object_locator_entries.find(entry.first) == msvc_rtti.complete_object_locator_entries.end()) {
msvc_rtti.complete_object_locator_entries[entry.first] = entry.second;
}
}
for (auto& entry : pre_msvc_rtti.class_hierarchy_descriptor_entries) {
if (msvc_rtti.class_hierarchy_descriptor_entries.find(entry.first) == msvc_rtti.class_hierarchy_descriptor_entries.end()) {
msvc_rtti.class_hierarchy_descriptor_entries[entry.first] = entry.second;
}
}
for (auto& entry : pre_msvc_rtti.base_class_descriptor_entries) {
if (msvc_rtti.base_class_descriptor_entries.find(entry.first) == msvc_rtti.base_class_descriptor_entries.end()) {
msvc_rtti.base_class_descriptor_entries[entry.first] = entry.second;
}
}
for (auto& entry : pre_msvc_rtti.type_descriptor_entries) {
if (msvc_rtti.type_descriptor_entries.find(entry.first) == msvc_rtti.type_descriptor_entries.end()) {
msvc_rtti.type_descriptor_entries[entry.first] = entry.second;
}
}
}
}
}
else {
std::set<uint32_t> msvc_rtti_loc_rvas = find_msvc_x64_rtti_complete_object_locators(image_full);
for (uint32_t loc_rva : msvc_rtti_loc_rvas) {
msvc_rtti_desc pre_msvc_rtti;
if (msvc_parse_complete_object_locator_64(image_full, pre_msvc_rtti, loc_rva)) {
for (auto& entry : pre_msvc_rtti.complete_object_locator_entries) {
if (msvc_rtti.complete_object_locator_entries.find(entry.first) == msvc_rtti.complete_object_locator_entries.end()) {
msvc_rtti.complete_object_locator_entries[entry.first] = entry.second;
}
}
for (auto& entry : pre_msvc_rtti.class_hierarchy_descriptor_entries) {
if (msvc_rtti.class_hierarchy_descriptor_entries.find(entry.first) == msvc_rtti.class_hierarchy_descriptor_entries.end()) {
msvc_rtti.class_hierarchy_descriptor_entries[entry.first] = entry.second;
}
}
for (auto& entry : pre_msvc_rtti.base_class_descriptor_entries) {
if (msvc_rtti.base_class_descriptor_entries.find(entry.first) == msvc_rtti.base_class_descriptor_entries.end()) {
msvc_rtti.base_class_descriptor_entries[entry.first] = entry.second;
}
}
for (auto& entry : pre_msvc_rtti.type_descriptor_entries) {
if (msvc_rtti.type_descriptor_entries.find(entry.first) == msvc_rtti.type_descriptor_entries.end()) {
msvc_rtti.type_descriptor_entries[entry.first] = entry.second;
}
}
}
}
}
}