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xenia-canary/src/xenia/kernel/xboxkrnl_io.cc

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/**
******************************************************************************
* 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/common.h>
#include <xenia/core.h>
#include <xenia/core/hash.h>
#include <xenia/kernel/async_request.h>
#include <xenia/kernel/kernel_state.h>
#include <xenia/kernel/xboxkrnl_private.h>
#include <xenia/kernel/objects/xevent.h>
#include <xenia/kernel/objects/xfile.h>
#include <xenia/kernel/util/shim_utils.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 = poly::load_and_swap<uint32_t>(base + p);
object_name_ptr = poly::load_and_swap<uint32_t>(base + p + 4);
if (object_name_ptr) {
object_name.Read(base, object_name_ptr);
} else {
object_name.Zero();
}
attributes = poly::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));
SHIM_CALL NtCreateFile_shim(PPCContext* ppc_state, KernelState* 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 attrs(SHIM_MEM_BASE, object_attributes_ptr);
char* object_name = 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);
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 = state->file_system();
std::unique_ptr<Entry> entry;
XFile* root_file = NULL;
if (attrs.root_directory != 0xFFFFFFFD && // ObDosDevices
attrs.root_directory != 0) {
result = state->object_table()->GetObject(attrs.root_directory,
(XObject**)&root_file);
assert_true(XSUCCEEDED(result));
assert_true(root_file->type() == XObject::Type::kTypeFile);
auto root_path = root_file->absolute_path();
auto target_path = root_path + object_name;
entry = std::move(fs->ResolvePath(target_path));
} else {
// Resolve the file using the virtual file system.
entry = std::move(fs->ResolvePath(object_name));
}
auto mode =
desired_access & GENERIC_WRITE ? fs::Mode::READ_WRITE : fs::Mode::READ;
XFile* file = NULL;
if (entry && entry->type() == Entry::Type::FILE) {
// Open the file.
result = entry->Open(state, mode,
false, // TODO(benvanik): pick async mode, if needed.
&file);
} else {
result = X_STATUS_NO_SUCH_FILE;
info = X_FILE_DOES_NOT_EXIST;
}
if (XSUCCEEDED(result)) {
// Handle ref is incremented, so return that.
handle = file->handle();
file->Release();
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);
}
}
free(object_name);
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtOpenFile_shim(PPCContext* ppc_state, KernelState* 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 attrs(SHIM_MEM_BASE, object_attributes_ptr);
char* object_name = 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);
X_STATUS result = X_STATUS_NO_SUCH_FILE;
uint32_t info = X_FILE_DOES_NOT_EXIST;
uint32_t handle;
XFile* root_file = NULL;
if (attrs.root_directory != 0xFFFFFFFD) { // ObDosDevices
result = state->object_table()->GetObject(attrs.root_directory,
(XObject**)&root_file);
assert_true(XSUCCEEDED(result));
assert_true(root_file->type() == XObject::Type::kTypeFile);
assert_always();
}
auto mode =
desired_access & GENERIC_WRITE ? fs::Mode::READ_WRITE : fs::Mode::READ;
// Resolve the file using the virtual file system.
FileSystem* fs = state->file_system();
auto entry = fs->ResolvePath(object_name);
XFile* file = NULL;
if (entry && entry->type() == Entry::Type::FILE) {
// Open the file.
result = entry->Open(state, mode,
false, // TODO(benvanik): pick async mode, if needed.
&file);
} else {
result = X_STATUS_NO_SUCH_FILE;
info = X_FILE_DOES_NOT_EXIST;
}
if (XSUCCEEDED(result)) {
// Handle ref is incremented, so return that.
handle = file->handle();
file->Release();
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);
}
}
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_state, KernelState* 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);
// Async not supported yet.
assert_zero(apc_routine_ptr);
X_STATUS result = X_STATUS_SUCCESS;
uint32_t info = 0;
// Grab event to signal.
XEvent* ev = NULL;
bool signal_event = false;
if (event_handle) {
result = state->object_table()->GetObject(event_handle, (XObject**)&ev);
}
// Grab file.
XFile* file = NULL;
if (XSUCCEEDED(result)) {
result = state->object_table()->GetObject(file_handle, (XObject**)&file);
}
// 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;
}
// 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 (file) {
file->Release();
}
if (ev) {
if (signal_event) {
ev->Set(0, false);
}
ev->Release();
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtSetInformationFile_shim(PPCContext* ppc_state, KernelState* 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.
XFile* file = NULL;
result = state->object_table()->GetObject(file_handle, (XObject**)&file);
if (XSUCCEEDED(result)) {
result = X_STATUS_SUCCESS;
switch (file_info_class) {
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;
default:
// Unsupported, for now.
assert_always();
info = 0;
break;
}
}
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
}
if (file) {
file->Release();
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryInformationFile_shim(PPCContext* ppc_state,
KernelState* 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.
XFile* file = NULL;
result = state->object_table()->GetObject(file_handle, (XObject**)&file);
if (XSUCCEEDED(result)) {
result = X_STATUS_SUCCESS;
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, hash_combine(0, file->absolute_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);
XFileInfo file_info;
result = file->QueryInfo(&file_info);
if (XSUCCEEDED(result)) {
info = 56;
file_info.Write(SHIM_MEM_BASE, file_info_ptr);
}
break;
case XFileXctdCompressionInformation:
// Read timeout.
if (length == 4) {
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 == poly::byte_swap(0x0FF512ED));
} else {
result = X_STATUS_UNSUCCESSFUL;
}
}
} else {
result = X_STATUS_INFO_LENGTH_MISMATCH;
}
break;
default:
// Unsupported, for now.
assert_always();
info = 0;
break;
}
}
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
}
if (file) {
file->Release();
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryFullAttributesFile_shim(PPCContext* ppc_state,
KernelState* 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;
XFile* root_file = NULL;
if (attrs.root_directory != 0xFFFFFFFD) { // ObDosDevices
result = state->object_table()->GetObject(attrs.root_directory,
(XObject**)&root_file);
assert_true(XSUCCEEDED(result));
assert_true(root_file->type() == XObject::Type::kTypeFile);
assert_always();
}
// Resolve the file using the virtual file system.
FileSystem* fs = state->file_system();
auto entry = fs->ResolvePath(object_name);
if (entry && entry->type() == Entry::Type::FILE) {
// Found.
XFileInfo 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_state,
KernelState* 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.
XFile* file = NULL;
result = state->object_table()->GetObject(file_handle, (XObject**)&file);
if (XSUCCEEDED(result)) {
result = X_STATUS_SUCCESS;
switch (fs_info_class) {
case 1: { // FileFsVolumeInformation
auto volume_info = (XVolumeInfo*)calloc(length, 1);
result = file->QueryVolume(volume_info, length);
if (XSUCCEEDED(result)) {
volume_info->Write(SHIM_MEM_BASE, fs_info_ptr);
info = length;
}
free(volume_info);
break;
}
case 5: { // FileFsAttributeInformation
auto fs_attribute_info = (XFileSystemAttributeInfo*)calloc(length, 1);
result = file->QueryFileSystemAttributes(fs_attribute_info, length);
if (XSUCCEEDED(result)) {
fs_attribute_info->Write(SHIM_MEM_BASE, fs_info_ptr);
info = length;
}
free(fs_attribute_info);
break;
}
default:
// Unsupported, for now.
assert_always();
info = 0;
break;
}
}
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
}
if (file) {
file->Release();
}
SHIM_SET_RETURN_32(result);
}
SHIM_CALL NtQueryDirectoryFile_shim(PPCContext* ppc_state, KernelState* 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 sp = (uint32_t)ppc_state->r[1];
uint32_t restart_scan = SHIM_MEM_32(sp + 0x54);
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;
XFile* file = NULL;
result = state->object_table()->GetObject(file_handle, (XObject**)&file);
if (XSUCCEEDED(result)) {
XDirectoryInfo* dir_info = (XDirectoryInfo*)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);
}
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
}
if (file) {
file->Release();
}
free(file_name);
SHIM_SET_RETURN_32(result);
}
SHIM_CALL FscSetCacheElementCount_shim(PPCContext* ppc_state,
KernelState* 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(ExportResolver* export_resolver,
KernelState* 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", 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", FscSetCacheElementCount, state);
}
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