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Cleanup file syscalls

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momo5502
2025-04-11 20:42:26 +02:00
parent facfe2b6bf
commit 891dafaf26
5 changed files with 102 additions and 74 deletions
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61
src/windows-emulator/syscall_utils.hpp
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@@ -2,6 +2,7 @@
#include "windows_emulator.hpp"
#include <ctime>
#include <platform/primitives.hpp>
struct syscall_context
{
@@ -194,27 +195,57 @@ void write_attribute(emulator& emu, const PS_ATTRIBUTE<Traits>& attribute, const
}
}
template <typename ResponseType, typename Action, NTSTATUS TooSmallResponse = STATUS_BUFFER_TOO_SMALL,
NTSTATUS SuccessResponse = STATUS_SUCCESS>
NTSTATUS handle_query(x64_emulator& emu, const uint64_t buffer, const uint32_t length,
const emulator_object<uint32_t> return_length, const Action& action)
template <typename ResponseType, typename Action, typename ReturnLengthSetter>
NTSTATUS handle_query_internal(x64_emulator& emu, const uint64_t buffer, const uint32_t length,
const ReturnLengthSetter& return_length_setter, const Action& action)
{
constexpr auto required_size = sizeof(ResponseType);
if (return_length)
{
return_length.write(required_size);
}
return_length_setter(required_size);
if (length < required_size)
{
return TooSmallResponse;
return STATUS_BUFFER_TOO_SMALL;
}
const emulator_object<ResponseType> obj{emu, buffer};
obj.access([&](ResponseType& resp_obj) {
action(resp_obj); //
});
ResponseType obj{};
action(obj);
return SuccessResponse;
emu.write_memory(buffer, obj);
return STATUS_SUCCESS;
}
template <typename ResponseType, typename Action>
NTSTATUS handle_query(x64_emulator& emu, const uint64_t buffer, const uint32_t length,
const emulator_object<uint32_t> return_length, const Action& action)
{
const auto length_setter = [&](const uint32_t required_size) {
if (return_length)
{
return_length.write(required_size);
}
};
return handle_query_internal<ResponseType>(emu, buffer, length, length_setter, action);
}
template <typename ResponseType, typename Action>
NTSTATUS handle_query(x64_emulator& emu, const uint64_t buffer, const uint32_t length,
const emulator_object<IO_STATUS_BLOCK<EmulatorTraits<Emu64>>> io_status_block,
const Action& action)
{
IO_STATUS_BLOCK<EmulatorTraits<Emu64>> status_block{};
const auto length_setter = [&](const EmulatorTraits<Emu64>::ULONG_PTR required_size) {
status_block.Information = required_size; //
};
status_block.Status = handle_query_internal<ResponseType>(emu, buffer, length, length_setter, action);
if (io_status_block)
{
io_status_block.write(status_block);
}
return status_block.Status;
}