Lightemerald/windows-user-space-emulator
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Prepare module mapping

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momo5502
2024-08-28 20:26:22 +02:00
parent 53d4effacc
commit ce7fc8b07d
2 changed files with 49 additions and 4 deletions
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51
src/windows_emulator/syscalls.cpp
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@@ -1,5 +1,6 @@
#include "std_include.hpp"
#include "syscalls.hpp"
#include "module_mapper.hpp"
struct syscall_context
{
@@ -286,6 +287,17 @@ namespace
}
}
if (handle & SECTION_BIT)
{
const auto event_index = static_cast<uint32_t>(handle & ~SECTION_BIT);
const auto entry = c.proc.sections.find(event_index);
if (entry != c.proc.sections.end())
{
c.proc.sections.erase(entry);
return STATUS_SUCCESS;
}
}
return STATUS_INVALID_HANDLE;
}
@@ -344,13 +356,19 @@ namespace
section_handle.write(index | SECTION_BIT);
auto status = STATUS_SUCCESS;
object_attributes.access([&](const OBJECT_ATTRIBUTES& attributes)
{
auto section = read_unicode_string(c.emu, attributes.ObjectName);
if (reinterpret_cast<uint64_t>(attributes.RootDirectory) != KNOWN_DLLS_DIRECTORY)
{
status = STATUS_NOT_SUPPORTED;
return;
}
auto section = L"C:\\WINDOWS\\System32\\" + read_unicode_string(c.emu, attributes.ObjectName);
c.proc.sections.try_emplace(index, std::move(section));
});
return STATUS_SUCCESS;
return status;
}
NTSTATUS handle_NtMapViewOfSection(const syscall_context& c, uint64_t section_handle, uint64_t process_handle,
@@ -359,10 +377,37 @@ namespace
const emulator_object<SIZE_T> view_size, SECTION_INHERIT inherit_disposition,
ULONG allocation_type, ULONG win32_protect)
{
const auto desired_base = base_address.read();
if (process_handle != ~0ULL)
{
return STATUS_INVALID_HANDLE;
}
if (!(section_handle & SECTION_BIT))
{
return STATUS_INVALID_HANDLE;
}
const auto section_index = static_cast<uint32_t>(section_handle & ~SECTION_BIT);
const auto section_entry = c.proc.sections.find(section_index);
if (section_entry == c.proc.sections.end())
{
return STATUS_INVALID_HANDLE;
}
const auto& section_name = section_entry->second;
const auto binary = map_file(c.emu, section_name);
if (view_size.value())
{
view_size.write(binary.size_of_image);
}
base_address.write(binary.image_base);
return STATUS_SUCCESS;
}
NTSTATUS handle_NtCreateIoCompletion(const syscall_context& c, const emulator_object<uint64_t> event_handle,
const ACCESS_MASK desired_access, const uint64_t object_attributes,
uint32_t /*number_of_concurrent_threads*/)