Lightemerald/windows-user-space-emulator
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Some progress

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momo5502
2024-09-09 20:28:24 +02:00
parent c23da4484b
commit a2c344db53
4 changed files with 77 additions and 7 deletions
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64
src/windows_emulator/syscalls.cpp
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@@ -256,6 +256,11 @@ namespace
return STATUS_SUCCESS;
}
if (value.type == handle_types::semaphore && c.proc.semaphores.erase(handle))
{
return STATUS_SUCCESS;
}
return STATUS_INVALID_HANDLE;
}
@@ -491,7 +496,7 @@ namespace
}
const auto mod = c.proc.module_manager.find_by_address(base_address);
if(!mod)
if (!mod)
{
printf("Bad address for memory image request: %llX\n", base_address);
return STATUS_INVALID_ADDRESS;
@@ -755,6 +760,33 @@ namespace
return STATUS_SUCCESS;
}
if (info_class == ProcessEnclaveInformation)
{
return STATUS_NOT_SUPPORTED;
}
if (info_class == ProcessBasicInformation)
{
if (return_length)
{
return_length.write(sizeof(PROCESS_BASIC_INFORMATION));
}
if (process_information_length != sizeof(PROCESS_BASIC_INFORMATION))
{
return STATUS_BUFFER_OVERFLOW;
}
const emulator_object<PROCESS_BASIC_INFORMATION> info{c.emu, process_information};
info.access([&](PROCESS_BASIC_INFORMATION& basic_info)
{
basic_info.PebBaseAddress = c.proc.peb.ptr();
basic_info.UniqueProcessId = reinterpret_cast<HANDLE>(1);
});
return STATUS_SUCCESS;
}
printf("Unsupported process info class: %X\n", info_class);
c.emu.stop();
@@ -772,7 +804,8 @@ namespace
if (info_class == ProcessSchedulerSharedData
|| info_class == ProcessTlsInformation
|| info_class == ProcessConsoleHostProcess)
|| info_class == ProcessConsoleHostProcess
|| info_class == ProcessRaiseUMExceptionOnInvalidHandleClose)
{
return STATUS_SUCCESS;
}
@@ -1128,10 +1161,34 @@ namespace
response.write(ResponseAbort);
}
printf("Hard error: %X\n", error_status);
printf("Hard error: %X\n", static_cast<uint32_t>(error_status));
c.emu.stop();
return STATUS_SUCCESS;
}
NTSTATUS handle_NtCreateSemaphore(const syscall_context& c, const emulator_object<uint64_t> semaphore_handle,
const ACCESS_MASK /*desired_access*/,
const emulator_object<OBJECT_ATTRIBUTES> object_attributes,
const ULONG initial_count, const ULONG maximum_count)
{
semaphore s{};
s.current_count = initial_count;
s.max_count = maximum_count;
if (object_attributes)
{
const auto attributes = object_attributes.read();
if (attributes.ObjectName)
{
s.name = read_unicode_string(c.emu, attributes.ObjectName);
}
}
const auto handle = c.proc.semaphores.store(std::move(s));
semaphore_handle.write(handle.bits);
return STATUS_SUCCESS;
}
}
syscall_dispatcher::syscall_dispatcher(const exported_symbols& ntdll_exports)
@@ -1190,6 +1247,7 @@ syscall_dispatcher::syscall_dispatcher(const exported_symbols& ntdll_exports)
add_handler(NtTerminateProcess);
add_handler(NtWriteFile);
add_handler(NtRaiseHardError);
add_handler(NtCreateSemaphore);
#undef add_handler
}