43 lines
990 B
C++
43 lines
990 B
C++
#include <std_include.hpp>
|
|
#include "tls.hpp"
|
|
|
|
#include <utils/nt.hpp>
|
|
#include <utils/binary_resource.hpp>
|
|
|
|
#include "resource.hpp"
|
|
|
|
namespace tls
|
|
{
|
|
namespace
|
|
{
|
|
utils::binary_resource tls_dll_file(TLS_DLL, "boiii-tlsdll.dll");
|
|
}
|
|
|
|
PIMAGE_TLS_DIRECTORY allocate_tls_index()
|
|
{
|
|
static auto already_allocated = false;
|
|
if (already_allocated)
|
|
{
|
|
throw std::runtime_error("Currently only a single allocation is supported!");
|
|
}
|
|
|
|
already_allocated = true;
|
|
|
|
const auto dll_path = tls_dll_file.get_extracted_file();
|
|
const auto tls_dll = utils::nt::library::load(dll_path);
|
|
if (!tls_dll)
|
|
{
|
|
throw std::runtime_error("Failed to load TLS DLL");
|
|
}
|
|
|
|
const auto tls_dir_entry = tls_dll.get_optional_header()
|
|
->DataDirectory[IMAGE_DIRECTORY_ENTRY_TLS].VirtualAddress;
|
|
if (!tls_dir_entry)
|
|
{
|
|
throw std::runtime_error("TLS DLL is invalid");
|
|
}
|
|
|
|
return reinterpret_cast<PIMAGE_TLS_DIRECTORY>(tls_dll.get_ptr() + tls_dir_entry);
|
|
}
|
|
}
|