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Improvements to locale syscalls, fix TimeZone query and add more syscalls (#223)

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This PR aims to do the following:
- Add the `NtUserGetAtomName` syscall.
- Add stub handlers for `NtUserSetWindowsHookEx`,
`NtUserUnhookWindowsHookEx`, and `NtUserCreateWindowEx`.
- Implement `NtGetNlsSectionPtr` (for Code Pages), add
`NtQueryDefaultUILanguage`, and improve `NtQueryInstallUILanguage`.
- Handle `SystemTimeZoneInformation`,
`SystemCurrentTimeZoneInformation`, and
`SystemDynamicTimeZoneInformation` in `NtQuerySystemInformation`.
- Skip `ThreadAffinityMask` in `NtSetInformationThread`.
- Fix `NtConnectPort` to allow TimeZone queries to work properly. This
is probably the most problematic change here because it required messing
with the shared section and hardcoding an offset (2504). Initializing
the data in this offset seems necessary for calls like
`GetTimeZoneInformation` to succeed, so maybe there's no other way
around it.
This commit is contained in:
Maurice Heumann
2025-04-22 09:08:42 +02:00
committed by GitHub
parent 5c66173bb8 8970c4b1e6
commit 1b9e114737
9 changed files with 316 additions and 20 deletions
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63
src/windows-emulator/syscalls.cpp
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@@ -118,11 +118,14 @@ namespace syscalls
emulator_object<LARGE_INTEGER> /*default_casing_table_size*/);
NTSTATUS handle_NtQueryDefaultLocale(const syscall_context&, BOOLEAN /*user_profile*/,
emulator_object<LCID> default_locale_id);
NTSTATUS handle_NtGetNlsSectionPtr();
NTSTATUS handle_NtGetNlsSectionPtr(const syscall_context& c, ULONG section_type, ULONG section_data,
emulator_pointer /*context_data*/, emulator_object<uint64_t> section_pointer,
emulator_object<ULONG> section_size);
NTSTATUS handle_NtGetMUIRegistryInfo();
NTSTATUS handle_NtIsUILanguageComitted();
NTSTATUS handle_NtUserGetKeyboardLayout();
NTSTATUS handle_NtQueryInstallUILanguage();
NTSTATUS handle_NtQueryDefaultUILanguage(const syscall_context&, emulator_object<LANGID> language_id);
NTSTATUS handle_NtQueryInstallUILanguage(const syscall_context&, emulator_object<LANGID> language_id);
// syscalls/memory.cpp:
NTSTATUS handle_NtQueryVirtualMemory(const syscall_context& c, handle process_handle, uint64_t base_address,
@@ -180,6 +183,14 @@ namespace syscalls
emulator_object<REMOTE_PORT_VIEW64> /*server_shared_memory*/,
emulator_object<ULONG> /*maximum_message_length*/, emulator_pointer connection_info,
emulator_object<ULONG> connection_info_length);
NTSTATUS handle_NtSecureConnectPort(const syscall_context& c, emulator_object<handle> client_port_handle,
emulator_object<UNICODE_STRING<EmulatorTraits<Emu64>>> server_port_name,
emulator_object<SECURITY_QUALITY_OF_SERVICE> security_qos,
emulator_object<PORT_VIEW64> client_shared_memory,
emulator_pointer /*server_sid*/,
emulator_object<REMOTE_PORT_VIEW64> server_shared_memory,
emulator_object<ULONG> maximum_message_length, emulator_pointer connection_info,
emulator_object<ULONG> connection_info_length);
NTSTATUS handle_NtAlpcSendWaitReceivePort(const syscall_context& c, handle port_handle, ULONG /*flags*/,
emulator_object<PORT_MESSAGE64> /*send_message*/,
emulator_object<ALPC_MESSAGE_ATTRIBUTES>
@@ -554,6 +565,33 @@ namespace syscalls
return STATUS_SUCCESS;
}
NTSTATUS handle_NtUserGetAtomName(const syscall_context& c, const RTL_ATOM atom,
const emulator_object<UNICODE_STRING<EmulatorTraits<Emu64>>> atom_name)
{
const auto* name = c.proc.get_atom_name(atom);
if (!name)
{
return STATUS_INVALID_PARAMETER;
}
const size_t name_length = name->size() * 2;
const size_t max_length = name_length + 2;
bool too_small = false;
atom_name.access([&](UNICODE_STRING<EmulatorTraits<Emu64>>& str) {
if (str.MaximumLength < max_length)
{
too_small = true;
return;
}
str.Length = static_cast<USHORT>(name_length);
c.emu.write_memory(str.Buffer, name->data(), max_length);
});
return too_small ? STATUS_BUFFER_TOO_SMALL : STATUS_SUCCESS;
}
NTSTATUS handle_NtQueryDebugFilterState()
{
return FALSE;
@@ -660,6 +698,21 @@ namespace syscalls
{
return c.proc.delete_atom(read_unicode_string(c.emu, class_name));
}
NTSTATUS handle_NtUserSetWindowsHookEx()
{
return STATUS_NOT_SUPPORTED;
}
NTSTATUS handle_NtUserUnhookWindowsHookEx()
{
return STATUS_NOT_SUPPORTED;
}
NTSTATUS handle_NtUserCreateWindowEx()
{
return STATUS_NOT_SUPPORTED;
}
}
void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& handler_mapping)
@@ -704,6 +757,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtApphelpCacheControl);
add_handler(NtCreateSection);
add_handler(NtConnectPort);
add_handler(NtSecureConnectPort);
add_handler(NtCreateFile);
add_handler(NtDeviceIoControlFile);
add_handler(NtQueryWnfStateData);
@@ -725,6 +779,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtAddAtomEx);
add_handler(NtAddAtom);
add_handler(NtDeleteAtom);
add_handler(NtUserGetAtomName);
add_handler(NtInitializeNlsFiles);
add_handler(NtUnmapViewOfSection);
add_handler(NtUnmapViewOfSectionEx);
@@ -740,6 +795,7 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtOpenEvent);
add_handler(NtGetMUIRegistryInfo);
add_handler(NtIsUILanguageComitted);
add_handler(NtQueryDefaultUILanguage);
add_handler(NtQueryInstallUILanguage);
add_handler(NtUpdateWnfStateData);
add_handler(NtRaiseException);
@@ -813,6 +869,9 @@ void syscall_dispatcher::add_handlers(std::map<std::string, syscall_handler>& ha
add_handler(NtUserGetProcessWindowStation);
add_handler(NtUserRegisterClassExWOW);
add_handler(NtUserUnregisterClass);
add_handler(NtUserSetWindowsHookEx);
add_handler(NtUserUnhookWindowsHookEx);
add_handler(NtUserCreateWindowEx);
#undef add_handler
}