Files
Xenia-Canary/src/xenia/kernel/xboxkrnl_io.cc

775 lines
25 KiB
C++

/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include "xenia/base/logging.h"
#include "xenia/base/memory.h"
#include "xenia/cpu/processor.h"
#include "xenia/kernel/async_request.h"
#include "xenia/kernel/kernel_state.h"
#include "xenia/kernel/fs/device.h"
#include "xenia/kernel/objects/xevent.h"
#include "xenia/kernel/objects/xfile.h"
#include "xenia/kernel/objects/xthread.h"
#include "xenia/kernel/util/shim_utils.h"
#include "xenia/kernel/xboxkrnl_private.h"
#include "xenia/xbox.h"
namespace xe {
namespace kernel {
using namespace xe::kernel::fs;
class X_OBJECT_ATTRIBUTES {
public:
uint32_t root_directory;
uint32_t object_name_ptr;
X_ANSI_STRING object_name;
uint32_t attributes;
X_OBJECT_ATTRIBUTES() { Zero(); }
X_OBJECT_ATTRIBUTES(const uint8_t* base, uint32_t p) { Read(base, p); }
void Read(const uint8_t* base, uint32_t p) {
root_directory = xe::load_and_swap<uint32_t>(base + p);
object_name_ptr = xe::load_and_swap<uint32_t>(base + p + 4);
if (object_name_ptr) {
object_name.Read(base, object_name_ptr);
} else {
object_name.Zero();
}
attributes = xe::load_and_swap<uint32_t>(base + p + 8);
}
void Zero() {
root_directory = 0;
object_name_ptr = 0;
object_name.Zero();
attributes = 0;
}
};
static_assert_size(X_OBJECT_ATTRIBUTES, 12 + sizeof(X_ANSI_STRING));
struct FileDisposition {
static const uint32_t X_FILE_SUPERSEDE = 0x00000000;
static const uint32_t X_FILE_OPEN = 0x00000001;
static const uint32_t X_FILE_CREATE = 0x00000002;
static const uint32_t X_FILE_OPEN_IF = 0x00000003;
static const uint32_t X_FILE_OVERWRITE = 0x00000004;
static const uint32_t X_FILE_OVERWRITE_IF = 0x00000005;
};
struct FileAccess {
static const uint32_t X_GENERIC_READ = 0x80000000;
static const uint32_t X_GENERIC_WRITE = 0x40000000;
static const uint32_t X_GENERIC_EXECUTE = 0x20000000;
static const uint32_t X_GENERIC_ALL = 0x10000000;
static const uint32_t X_FILE_READ_DATA = 0x00000001;
static const uint32_t X_FILE_WRITE_DATA = 0x00000002;
static const uint32_t X_FILE_APPEND_DATA = 0x00000004;
};
X_STATUS NtCreateFile(PPCContext* ppc_context, KernelState* kernel_state,
uint32_t handle_ptr, uint32_t desired_access,
X_OBJECT_ATTRIBUTES* object_attrs,
const char* object_name, uint32_t io_status_block_ptr,
uint32_t allocation_size_ptr, uint32_t file_attributes,
uint32_t share_access, uint32_t creation_disposition) {
uint64_t allocation_size = 0; // is this correct???
if (allocation_size_ptr != 0) {
allocation_size = SHIM_MEM_64(allocation_size_ptr);
}
X_STATUS result = X_STATUS_NO_SUCH_FILE;
uint32_t info = X_FILE_DOES_NOT_EXIST;
uint32_t handle;
FileSystem* fs = kernel_state->file_system();
std::unique_ptr<Entry> entry;
object_ref<XFile> root_file;
if (object_attrs->root_directory != 0xFFFFFFFD && // ObDosDevices
object_attrs->root_directory != 0) {
root_file = kernel_state->object_table()->LookupObject<XFile>(
object_attrs->root_directory);
assert_not_null(root_file);
assert_true(root_file->type() == XObject::Type::kTypeFile);
// Resolve the file using the device the root directory is part of.
auto device = root_file->device();
auto target_path = xe::join_paths(root_file->path(), object_name);
entry = device->ResolvePath(target_path.c_str());
} else {
// Resolve the file using the virtual file system.
entry = fs->ResolvePath(object_name);
}
bool wants_write = desired_access & FileAccess::X_GENERIC_WRITE ||
desired_access & FileAccess::X_GENERIC_ALL ||
desired_access & FileAccess::X_FILE_WRITE_DATA ||
desired_access & FileAccess::X_FILE_APPEND_DATA;
if (wants_write) {
if (entry && entry->is_read_only()) {
// We don't support any write modes.
XELOGW("Attempted to open the file/dir for create/write");
desired_access = FileAccess::X_GENERIC_READ;
}
}
object_ref<XFile> file;
if (!entry) {
result = X_STATUS_NO_SUCH_FILE;
info = X_FILE_DOES_NOT_EXIST;
} else {
// Open the file/directory.
fs::Mode mode;
if (desired_access & FileAccess::X_FILE_APPEND_DATA) {
mode = fs::Mode::READ_APPEND;
} else if (wants_write) {
mode = fs::Mode::READ_WRITE;
} else {
mode = fs::Mode::READ;
}
XFile* file_ptr = nullptr;
result = fs->Open(std::move(entry), kernel_state, mode,
false, // TODO(benvanik): pick async mode, if needed.
&file_ptr);
file = object_ref<XFile>(file_ptr);
}
if (XSUCCEEDED(result)) {
// Handle ref is incremented, so return that.
handle = file->handle();
result = X_STATUS_SUCCESS;
info = X_FILE_OPENED;
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
if (XSUCCEEDED(result)) {
if (handle_ptr) {
SHIM_SET_MEM_32(handle_ptr, handle);
}
}
return result;
}
SHIM_CALL NtCreateFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t handle_ptr = SHIM_GET_ARG_32(0);
uint32_t desired_access = SHIM_GET_ARG_32(1);
uint32_t object_attributes_ptr = SHIM_GET_ARG_32(2);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(3);
uint32_t allocation_size_ptr = SHIM_GET_ARG_32(4);
uint32_t file_attributes = SHIM_GET_ARG_32(5);
uint32_t share_access = SHIM_GET_ARG_32(6);
uint32_t creation_disposition = SHIM_GET_ARG_32(7);
X_OBJECT_ATTRIBUTES object_attrs(SHIM_MEM_BASE, object_attributes_ptr);
char* object_name = object_attrs.object_name.Duplicate();
XELOGD("NtCreateFile(%.8X, %.8X, %.8X(%s), %.8X, %.8X, %.8X, %d, %d)",
handle_ptr, desired_access, object_attributes_ptr,
!object_name ? "(null)" : object_name, io_status_block_ptr,
allocation_size_ptr, file_attributes, share_access,
creation_disposition);
auto result = NtCreateFile(
ppc_context, kernel_state, handle_ptr, desired_access, &object_attrs,
object_name, io_status_block_ptr, allocation_size_ptr, file_attributes,
share_access, creation_disposition);
free(object_name);
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtOpenFile_shim(PPCContext* ppc_context, KernelState* kernel_state) {
uint32_t handle_ptr = SHIM_GET_ARG_32(0);
uint32_t desired_access = SHIM_GET_ARG_32(1);
uint32_t object_attributes_ptr = SHIM_GET_ARG_32(2);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(3);
uint32_t open_options = SHIM_GET_ARG_32(4);
X_OBJECT_ATTRIBUTES object_attrs(SHIM_MEM_BASE, object_attributes_ptr);
char* object_name = object_attrs.object_name.Duplicate();
XELOGD("NtOpenFile(%.8X, %.8X, %.8X(%s), %.8X, %d)", handle_ptr,
desired_access, object_attributes_ptr,
!object_name ? "(null)" : object_name, io_status_block_ptr,
open_options);
auto result = NtCreateFile(
ppc_context, kernel_state, handle_ptr, desired_access, &object_attrs,
object_name, io_status_block_ptr, 0, 0, 0, FileDisposition::X_FILE_OPEN);
free(object_name);
SHIM_SET_RETURN_32(result);
}
class xeNtReadFileState {
public:
uint32_t x;
};
void xeNtReadFileCompleted(XAsyncRequest* request, xeNtReadFileState* state) {
// TODO(benvanik): set io_status_block_ptr
delete request;
delete state;
}
SHIM_CALL NtReadFile_shim(PPCContext* ppc_context, KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t event_handle = SHIM_GET_ARG_32(1);
uint32_t apc_routine_ptr = SHIM_GET_ARG_32(2);
uint32_t apc_context = SHIM_GET_ARG_32(3);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(4);
uint32_t buffer = SHIM_GET_ARG_32(5);
uint32_t buffer_length = SHIM_GET_ARG_32(6);
uint32_t byte_offset_ptr = SHIM_GET_ARG_32(7);
size_t byte_offset = byte_offset_ptr ? SHIM_MEM_64(byte_offset_ptr) : 0;
XELOGD("NtReadFile(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X, %d, %.8X(%d))",
file_handle, event_handle, apc_routine_ptr, apc_context,
io_status_block_ptr, buffer, buffer_length, byte_offset_ptr,
byte_offset);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab event to signal.
bool signal_event = false;
auto ev =
event_handle
? kernel_state->object_table()->LookupObject<XEvent>(event_handle)
: object_ref<XEvent>();
if (event_handle && !ev) {
result = X_STATUS_INVALID_HANDLE;
}
// Grab file.
auto file = kernel_state->object_table()->LookupObject<XFile>(file_handle);
if (!file) {
result = X_STATUS_INVALID_HANDLE;
}
// Execute read.
if (XSUCCEEDED(result)) {
// Reset event before we begin.
if (ev) {
ev->Reset();
}
// TODO(benvanik): async path.
if (true) {
// Synchronous request.
if (!byte_offset_ptr || byte_offset == 0xFFFFFFFFfffffffe) {
// FILE_USE_FILE_POINTER_POSITION
byte_offset = -1;
}
// Read now.
size_t bytes_read = 0;
result = file->Read(SHIM_MEM_ADDR(buffer), buffer_length, byte_offset,
&bytes_read);
if (XSUCCEEDED(result)) {
info = (int32_t)bytes_read;
}
// Queue the APC callback. It must be delivered via the APC mechanism even
// though were are completing immediately.
if (apc_routine_ptr & ~1) {
auto thread = XThread::GetCurrentThread();
thread->EnqueueApc(apc_routine_ptr & ~1, apc_context,
io_status_block_ptr, 0);
}
// Mark that we should signal the event now. We do this after
// we have written the info out.
signal_event = true;
} else {
// X_STATUS_PENDING if not returning immediately.
// XFile is waitable and signalled after each async req completes.
// reset the input event (->Reset())
/*xeNtReadFileState* call_state = new xeNtReadFileState();
XAsyncRequest* request = new XAsyncRequest(
state, file,
(XAsyncRequest::CompletionCallback)xeNtReadFileCompleted,
call_state);*/
// result = file->Read(buffer, buffer_length, byte_offset, request);
result = X_STATUS_PENDING;
info = 0;
}
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
if (ev && signal_event) {
ev->Set(0, false);
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtWriteFile_shim(PPCContext* ppc_context, KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t event_handle = SHIM_GET_ARG_32(1);
uint32_t apc_routine_ptr = SHIM_GET_ARG_32(2);
uint32_t apc_context = SHIM_GET_ARG_32(3);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(4);
uint32_t buffer = SHIM_GET_ARG_32(5);
uint32_t buffer_length = SHIM_GET_ARG_32(6);
uint32_t byte_offset_ptr = SHIM_GET_ARG_32(7);
size_t byte_offset = byte_offset_ptr ? SHIM_MEM_64(byte_offset_ptr) : 0;
XELOGD("NtWriteFile(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X, %d, %.8X(%d))",
file_handle, event_handle, apc_routine_ptr, apc_context,
io_status_block_ptr, buffer, buffer_length, byte_offset_ptr,
byte_offset);
// Async not supported yet.
assert_zero(apc_routine_ptr);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab event to signal.
bool signal_event = false;
auto ev =
event_handle
? kernel_state->object_table()->LookupObject<XEvent>(event_handle)
: object_ref<XEvent>();
if (event_handle && !ev) {
result = X_STATUS_INVALID_HANDLE;
}
// Grab file.
auto file = kernel_state->object_table()->LookupObject<XFile>(file_handle);
if (!ev) {
result = X_STATUS_INVALID_HANDLE;
}
// Execute write.
if (XSUCCEEDED(result)) {
// Reset event before we begin.
if (ev) {
ev->Reset();
}
// TODO(benvanik): async path.
if (true) {
// Synchronous request.
if (!byte_offset_ptr || byte_offset == 0xFFFFFFFFfffffffe) {
// FILE_USE_FILE_POINTER_POSITION
byte_offset = -1;
}
// Write now.
size_t bytes_written = 0;
result = file->Write(SHIM_MEM_ADDR(buffer), buffer_length, byte_offset,
&bytes_written);
if (XSUCCEEDED(result)) {
info = (int32_t)bytes_written;
}
// Mark that we should signal the event now. We do this after
// we have written the info out.
signal_event = true;
} else {
// X_STATUS_PENDING if not returning immediately.
result = X_STATUS_PENDING;
info = 0;
}
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
if (ev && signal_event) {
ev->Set(0, false);
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtSetInformationFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(1);
uint32_t file_info_ptr = SHIM_GET_ARG_32(2);
uint32_t length = SHIM_GET_ARG_32(3);
uint32_t file_info_class = SHIM_GET_ARG_32(4);
XELOGD("NtSetInformationFile(%.8X, %.8X, %.8X, %.8X, %.8X)", file_handle,
io_status_block_ptr, file_info_ptr, length, file_info_class);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab file.
auto file = kernel_state->object_table()->LookupObject<XFile>(file_handle);
if (file) {
switch (file_info_class) {
case XFileDispositionInformation: {
// Used to set deletion flag. Which we don't support. Probably?
info = 0;
bool delete_on_close = SHIM_MEM_8(file_info_ptr) ? true : false;
XELOGW("NtSetInformationFile ignoring delete on close: %d",
delete_on_close);
break;
}
case XFilePositionInformation:
// struct FILE_POSITION_INFORMATION {
// LARGE_INTEGER CurrentByteOffset;
// };
assert_true(length == 8);
info = 8;
file->set_position(SHIM_MEM_64(file_info_ptr));
break;
case XFileAllocationInformation:
case XFileEndOfFileInformation:
assert_true(length == 8);
info = 8;
XELOGW("NtSetInformationFile ignoring alloc/eof");
break;
default:
// Unsupported, for now.
assert_always();
info = 0;
break;
}
} else {
result = X_STATUS_INVALID_HANDLE;
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryInformationFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(1);
uint32_t file_info_ptr = SHIM_GET_ARG_32(2);
uint32_t length = SHIM_GET_ARG_32(3);
uint32_t file_info_class = SHIM_GET_ARG_32(4);
XELOGD("NtQueryInformationFile(%.8X, %.8X, %.8X, %.8X, %.8X)", file_handle,
io_status_block_ptr, file_info_ptr, length, file_info_class);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab file.
auto file = kernel_state->object_table()->LookupObject<XFile>(file_handle);
if (file) {
switch (file_info_class) {
case XFileInternalInformation:
// Internal unique file pointer. Not sure why anyone would want this.
assert_true(length == 8);
info = 8;
// TODO(benvanik): use pointer to fs:: entry?
SHIM_SET_MEM_64(file_info_ptr, xe::hash_combine(0, file->path()));
break;
case XFilePositionInformation:
// struct FILE_POSITION_INFORMATION {
// LARGE_INTEGER CurrentByteOffset;
// };
assert_true(length == 8);
info = 8;
SHIM_SET_MEM_64(file_info_ptr, file->position());
break;
case XFileNetworkOpenInformation:
// struct FILE_NETWORK_OPEN_INFORMATION {
// LARGE_INTEGER CreationTime;
// LARGE_INTEGER LastAccessTime;
// LARGE_INTEGER LastWriteTime;
// LARGE_INTEGER ChangeTime;
// LARGE_INTEGER AllocationSize;
// LARGE_INTEGER EndOfFile;
// ULONG FileAttributes;
// ULONG Unknown;
// };
assert_true(length == 56);
X_FILE_NETWORK_OPEN_INFORMATION file_info;
result = file->QueryInfo(&file_info);
if (XSUCCEEDED(result)) {
info = 56;
file_info.Write(SHIM_MEM_BASE, file_info_ptr);
}
break;
case XFileXctdCompressionInformation:
assert_true(length == 4);
/*
// This is wrong and puts files into wrong states for games that use
XctdDecompression.
uint32_t magic;
size_t bytes_read;
result = file->Read(&magic, sizeof(magic), 0, &bytes_read);
if (XSUCCEEDED(result)) {
if (bytes_read == sizeof(magic)) {
info = 4;
SHIM_SET_MEM_32(file_info_ptr, magic == xe::byte_swap(0x0FF512ED) ?
1 : 0);
} else {
result = X_STATUS_UNSUCCESSFUL;
}
}
*/
result = X_STATUS_UNSUCCESSFUL;
break;
default:
// Unsupported, for now.
assert_always();
info = 0;
break;
}
} else {
result = X_STATUS_INVALID_HANDLE;
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryFullAttributesFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t object_attributes_ptr = SHIM_GET_ARG_32(0);
uint32_t file_info_ptr = SHIM_GET_ARG_32(1);
X_OBJECT_ATTRIBUTES attrs(SHIM_MEM_BASE, object_attributes_ptr);
char* object_name = attrs.object_name.Duplicate();
XELOGD("NtQueryFullAttributesFile(%.8X(%s), %.8X)", object_attributes_ptr,
!object_name ? "(null)" : object_name, file_info_ptr);
X_STATUS result = X_STATUS_NO_SUCH_FILE;
object_ref<XFile> root_file;
if (attrs.root_directory != 0xFFFFFFFD && // ObDosDevices
attrs.root_directory != 0) {
root_file =
kernel_state->object_table()->LookupObject<XFile>(attrs.root_directory);
assert_not_null(root_file);
assert_true(root_file->type() == XObject::Type::kTypeFile);
assert_always();
}
// Resolve the file using the virtual file system.
FileSystem* fs = kernel_state->file_system();
auto entry = fs->ResolvePath(object_name);
if (entry) {
// Found.
X_FILE_NETWORK_OPEN_INFORMATION file_info;
result = entry->QueryInfo(&file_info);
if (XSUCCEEDED(result)) {
file_info.Write(SHIM_MEM_BASE, file_info_ptr);
}
}
free(object_name);
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryVolumeInformationFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(1);
uint32_t fs_info_ptr = SHIM_GET_ARG_32(2);
uint32_t length = SHIM_GET_ARG_32(3);
uint32_t fs_info_class = SHIM_GET_ARG_32(4);
XELOGD("NtQueryVolumeInformationFile(%.8X, %.8X, %.8X, %.8X, %.8X)",
file_handle, io_status_block_ptr, fs_info_ptr, length, fs_info_class);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab file.
auto file = kernel_state->object_table()->LookupObject<XFile>(file_handle);
if (file) {
switch (fs_info_class) {
case 1: { // FileFsVolumeInformation
auto volume_info = (X_FILE_FS_VOLUME_INFORMATION*)calloc(length, 1);
result = file->device()->QueryVolumeInfo(volume_info, length);
if (XSUCCEEDED(result)) {
volume_info->Write(SHIM_MEM_BASE, fs_info_ptr);
info = length;
}
free(volume_info);
break;
}
case 3: { // FileFsSizeInformation
auto fs_attribute_info = (X_FILE_FS_SIZE_INFORMATION*)calloc(length, 1);
result = file->device()->QuerySizeInfo(fs_attribute_info, length);
if (XSUCCEEDED(result)) {
fs_attribute_info->Write(SHIM_MEM_BASE, fs_info_ptr);
info = length;
}
free(fs_attribute_info);
break;
}
case 5: { // FileFsAttributeInformation
auto fs_attribute_info =
(X_FILE_FS_ATTRIBUTE_INFORMATION*)calloc(length, 1);
result = file->device()->QueryAttributeInfo(fs_attribute_info, length);
if (XSUCCEEDED(result)) {
fs_attribute_info->Write(SHIM_MEM_BASE, fs_info_ptr);
info = length;
}
free(fs_attribute_info);
break;
}
case 2: // FileFsLabelInformation
case 4: // FileFsDeviceInformation
case 6: // FileFsControlInformation
case 7: // FileFsFullSizeInformation
case 8: // FileFsObjectIdInformation
default:
// Unsupported, for now.
assert_always();
info = 0;
break;
}
} else {
result = X_STATUS_NO_SUCH_FILE;
}
if (XFAILED(result)) {
info = 0;
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryDirectoryFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t event_handle = SHIM_GET_ARG_32(1);
uint32_t apc_routine = SHIM_GET_ARG_32(2);
uint32_t apc_context = SHIM_GET_ARG_32(3);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(4);
uint32_t file_info_ptr = SHIM_GET_ARG_32(5);
uint32_t length = SHIM_GET_ARG_32(6);
uint32_t file_name_ptr = SHIM_GET_ARG_32(7);
uint32_t restart_scan = SHIM_GET_ARG_32(8);
char* file_name = NULL;
if (file_name_ptr != 0) {
X_ANSI_STRING xas(SHIM_MEM_BASE, file_name_ptr);
file_name = xas.Duplicate();
}
XELOGD(
"NtQueryDirectoryFile(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X, %d, %.8X(%s), "
"%d)",
file_handle, event_handle, apc_routine, apc_context, io_status_block_ptr,
file_info_ptr, length, file_name_ptr, !file_name ? "(null)" : file_name,
restart_scan);
if (length < 72) {
SHIM_SET_RETURN_32(X_STATUS_INFO_LENGTH_MISMATCH);
free(file_name);
return;
}
X_STATUS result = X_STATUS_UNSUCCESSFUL;
uint32_t info = 0;
auto file = kernel_state->object_table()->LookupObject<XFile>(file_handle);
if (file) {
X_FILE_DIRECTORY_INFORMATION* dir_info =
(X_FILE_DIRECTORY_INFORMATION*)calloc(length, 1);
result =
file->QueryDirectory(dir_info, length, file_name, restart_scan != 0);
if (XSUCCEEDED(result)) {
dir_info->Write(SHIM_MEM_BASE, file_info_ptr);
info = length;
}
free(dir_info);
} else {
result = X_STATUS_NO_SUCH_FILE;
}
if (XFAILED(result)) {
info = 0;
}
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, info); // Information
}
free(file_name);
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtFlushBuffersFile_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t file_handle = SHIM_GET_ARG_32(0);
uint32_t io_status_block_ptr = SHIM_GET_ARG_32(1);
XELOGD("NtFlushBuffersFile(%.8X, %.8X)", file_handle, io_status_block_ptr);
auto result = X_STATUS_SUCCESS;
if (io_status_block_ptr) {
SHIM_SET_MEM_32(io_status_block_ptr, result); // Status
SHIM_SET_MEM_32(io_status_block_ptr + 4, 0); // Information
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL FscSetCacheElementCount_shim(PPCContext* ppc_context,
KernelState* kernel_state) {
uint32_t unk_0 = SHIM_GET_ARG_32(0);
uint32_t unk_1 = SHIM_GET_ARG_32(1);
// unk_0 = 0
// unk_1 looks like a count? in what units? 256 is a common value
XELOGD("FscSetCacheElementCount(%.8X, %.8X)", unk_0, unk_1);
SHIM_SET_RETURN_32(X_STATUS_SUCCESS);
}
} // namespace kernel
} // namespace xe
void xe::kernel::xboxkrnl::RegisterIoExports(
xe::cpu::ExportResolver* export_resolver, KernelState* kernel_state) {
SHIM_SET_MAPPING("xboxkrnl.exe", NtCreateFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtOpenFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtReadFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtWriteFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryInformationFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtSetInformationFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryFullAttributesFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryVolumeInformationFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryDirectoryFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtFlushBuffersFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", FscSetCacheElementCount, state);
}