Lightemerald/windows-user-space-emulator
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Almost working registry support

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momo5502
2024-11-02 22:52:09 +01:00
parent 92b9712e45
commit 86609ff151
4 changed files with 96 additions and 3 deletions
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63
src/windows-emulator/syscalls.cpp
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@@ -74,9 +74,62 @@ namespace
return STATUS_SUCCESS;
}
NTSTATUS handle_NtOpenKeyEx()
NTSTATUS handle_NtOpenKeyEx(const syscall_context& c, const emulator_object<uint64_t> key_handle,
const ACCESS_MASK desired_access,
const emulator_object<OBJECT_ATTRIBUTES> object_attributes,
ULONG /*open_options*/)
{
return STATUS_NOT_SUPPORTED;
return handle_NtOpenKey(c, key_handle, desired_access, object_attributes);
}
NTSTATUS handle_NtQueryValueKey(const syscall_context& c, handle key_handle,
const emulator_object<UNICODE_STRING> value_name,
KEY_VALUE_INFORMATION_CLASS key_value_information_class,
uint64_t key_value_information,
ULONG length, const emulator_object<ULONG> result_length)
{
if (key_value_information_class != KeyValuePartialInformation)
{
c.win_emu.logger.print(color::gray, "Unsupported registry class: %X\n", key_value_information_class);
c.emu.stop();
return STATUS_NOT_SUPPORTED;
}
const auto* key = c.proc.registry_keys.get(key_handle);
if (!key)
{
return STATUS_INVALID_HANDLE;
}
const auto wide_name = read_unicode_string(c.emu, value_name);
const std::string name(wide_name.begin(), wide_name.end());
const auto value = c.proc.registry.get_value(*key, name);
if (!value)
{
return STATUS_OBJECT_NAME_NOT_FOUND;
}
const auto required_size = sizeof(KEY_VALUE_PARTIAL_INFORMATION) + value->data.size() - 1;
result_length.write(static_cast<ULONG>(required_size));
if (required_size > length)
{
return STATUS_BUFFER_TOO_SMALL;
}
KEY_VALUE_PARTIAL_INFORMATION partial_info{};
partial_info.TitleIndex = 0;
partial_info.Type = value->type;
partial_info.DataLength = static_cast<ULONG>(value->data.size());
const emulator_object<KEY_VALUE_PARTIAL_INFORMATION> partial_info_obj{c.emu, key_value_information};
partial_info_obj.write(partial_info);
c.emu.write_memory(key_value_information + offsetof(KEY_VALUE_PARTIAL_INFORMATION, Data), value->data.data(),
value->data.size());
return STATUS_SUCCESS;
}
NTSTATUS handle_NtSetInformationThread(const syscall_context& c, const uint64_t thread_handle,
@@ -165,6 +218,11 @@ namespace
return STATUS_SUCCESS;
}
if (value.type == handle_types::registry && c.proc.registry_keys.erase(handle))
{
return STATUS_SUCCESS;
}
return STATUS_INVALID_HANDLE;
}
@@ -2276,6 +2334,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtReadFile);
add_handler(NtSetInformationFile);
add_handler(NtUserRegisterWindowMessage);
add_handler(NtQueryValueKey);
#undef add_handler
}