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Basic NtCreateFile.

This commit is contained in:
Ben Vanik 2013-10-15 21:30:57 -07:00
parent f409795dd1
commit 388f354870
6 changed files with 144 additions and 86 deletions
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5
src/xenia/kernel/modules/xboxkrnl/objects/xfile.cc
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@ -10,15 +10,16 @@
#include <xenia/kernel/modules/xboxkrnl/objects/xfile.h>
#include <xenia/kernel/modules/xboxkrnl/objects/xevent.h>
#include <xenia/kernel/modules/xboxkrnl/objects/xmodule.h>
using namespace xe;
using namespace xe::kernel;
using namespace xe::kernel::fs;
using namespace xe::kernel::xboxkrnl;
XFile::XFile(KernelState* kernel_state) :
XFile::XFile(KernelState* kernel_state, FileEntry* entry) :
entry_(entry),
XObject(kernel_state, kTypeFile) {
}

4
src/xenia/kernel/modules/xboxkrnl/objects/xfile.h
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@ -13,6 +13,7 @@
#include <xenia/kernel/modules/xboxkrnl/xobject.h>
#include <xenia/kernel/xbox.h>
#include <xenia/kernel/fs/entry.h>
namespace xe {
@ -22,10 +23,11 @@ namespace xboxkrnl {
class XFile : public XObject {
public:
XFile(KernelState* kernel_state);
XFile(KernelState* kernel_state, fs::FileEntry* entry);
virtual ~XFile();
private:
fs::FileEntry* entry_;
};

103
src/xenia/kernel/modules/xboxkrnl/xboxkrnl_io.cc
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@ -12,11 +12,12 @@
#include <xenia/kernel/shim_utils.h>
#include <xenia/kernel/modules/xboxkrnl/kernel_state.h>
#include <xenia/kernel/modules/xboxkrnl/xboxkrnl_private.h>
#include <xenia/kernel/modules/xboxkrnl/objects/xthread.h>
#include <xenia/kernel/modules/xboxkrnl/objects/xfile.h>
using namespace xe;
using namespace xe::kernel;
using namespace xe::kernel::fs;
using namespace xe::kernel::xboxkrnl;
@ -25,6 +26,100 @@ namespace kernel {
namespace xboxkrnl {
SHIM_CALL NtCreateFile_shim(
xe_ppc_state_t* 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);
struct OBJECT_ATTRIBUTES {
uint32_t root_directory;
uint32_t object_name_ptr;
uint32_t attributes;
} attrs;
attrs.root_directory = SHIM_MEM_32(object_attributes_ptr);
attrs.object_name_ptr = SHIM_MEM_32(object_attributes_ptr + 4);
attrs.attributes = SHIM_MEM_32(object_attributes_ptr + 8);
X_ANSI_STRING object_name;
object_name.length = SHIM_MEM_16(attrs.object_name_ptr);
object_name.maximum_length = SHIM_MEM_16(attrs.object_name_ptr + 2);
object_name.buffer =
(char*)SHIM_MEM_ADDR(SHIM_MEM_32(attrs.object_name_ptr + 4));
XELOGD(
"NtCreateFile(%.8X, %.8X, %.8X(%s), %.8X, %.8X, %.8X, %d, %d)",
handle_ptr,
desired_access,
object_attributes_ptr,
object_name.buffer,
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;
// Resolve the file using the virtual file system.
FileSystem* fs = state->filesystem();
Entry* entry = fs->ResolvePath(object_name.buffer);
if (entry && entry->type() == Entry::kTypeFile) {
// Create file handle wrapper.
FileEntry* file_entry = (FileEntry*)entry;
XFile* file = new XFile(state, file_entry);
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);
}
}
SHIM_SET_RETURN(result);
}
SHIM_CALL NtOpenFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtReadFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtQueryInformationFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtQueryFullAttributesFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtQueryVolumeInformationFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
} // namespace xboxkrnl
@ -34,4 +129,10 @@ namespace xboxkrnl {
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", NtQueryFullAttributesFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryVolumeInformationFile, state);
}

75
src/xenia/kernel/modules/xboxkrnl/xboxkrnl_nt.cc
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@ -12,7 +12,6 @@
#include <xenia/kernel/shim_utils.h>
#include <xenia/kernel/modules/xboxkrnl/kernel_state.h>
#include <xenia/kernel/modules/xboxkrnl/xboxkrnl_private.h>
#include <xenia/kernel/modules/xboxkrnl/objects/xthread.h>
using namespace xe;
@ -25,80 +24,12 @@ namespace kernel {
namespace xboxkrnl {
X_STATUS xeNtCreateFile(
uint32_t* handle_ptr, uint32_t desired_access, void* object_attributes_ptr,
void* io_status_block_ptr, uint64_t allocation_size, uint32_t file_attributes,
uint32_t share_access, uint32_t creation_disposition) {
KernelState* state = shared_kernel_state_;
XEASSERTNOTNULL(state);
return X_STATUS_NO_SUCH_FILE;
}
SHIM_CALL NtCreateFile_shim(
xe_ppc_state_t* 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);
XELOGD(
"NtCreateFile(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X, %d, %d)",
handle_ptr,
desired_access,
object_attributes_ptr,
io_status_block_ptr,
allocation_size_ptr,
file_attributes,
share_access,
creation_disposition);
// object_attributes is:
// void *root_directory
// _STRING *object_name <- probably initialized by previous RtlInitAnsiString call
// uint32_t attributes
uint64_t allocation_size = 0; // is this correct???
if (allocation_size_ptr != 0) {
allocation_size = SHIM_MEM_64(allocation_size_ptr);
}
uint32_t handle;
X_STATUS result = xeNtCreateFile(
&handle, desired_access, SHIM_MEM_ADDR(object_attributes_ptr), SHIM_MEM_ADDR(io_status_block_ptr),
allocation_size, file_attributes, share_access, creation_disposition);
if (XSUCCEEDED(result)) {
if (handle_ptr) {
SHIM_SET_MEM_32(handle_ptr, handle);
}
}
SHIM_SET_RETURN(result);
}
SHIM_CALL NtQueryInformationFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtReadFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtQueryFullAttributesFile_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
SHIM_CALL NtClose_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
SHIM_SET_RETURN(X_STATUS_NO_SUCH_FILE);
}
} // namespace xboxkrnl
} // namespace kernel
} // namespace xe
@ -107,8 +38,4 @@ SHIM_CALL NtClose_shim(
void xe::kernel::xboxkrnl::RegisterNtExports(
ExportResolver* export_resolver, KernelState* state) {
SHIM_SET_MAPPING("xboxkrnl.exe", NtClose, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtCreateFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryFullAttributesFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtQueryInformationFile, state);
SHIM_SET_MAPPING("xboxkrnl.exe", NtReadFile, state);
}

28
src/xenia/kernel/modules/xboxkrnl/xboxkrnl_rtl.cc
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@ -176,10 +176,16 @@ void xeRtlInitAnsiString(uint32_t destination_ptr, uint32_t source_ptr) {
const char* source = source_ptr ? (char*)IMPL_MEM_ADDR(source_ptr) : NULL;
uint16_t length = source ? (uint16_t)xestrlena(source) : 0;
IMPL_SET_MEM_16(destination_ptr + 2, length * 2);
IMPL_SET_MEM_16(destination_ptr + 0, length * 2);
IMPL_SET_MEM_32(destination_ptr + 4, source_ptr);
if (source) {
uint16_t length = (uint16_t)xestrlena(source);
IMPL_SET_MEM_16(destination_ptr + 0, length);
IMPL_SET_MEM_16(destination_ptr + 2, length + 1);
IMPL_SET_MEM_32(destination_ptr + 4, source_ptr);
} else {
IMPL_SET_MEM_16(destination_ptr + 0, 0);
IMPL_SET_MEM_16(destination_ptr + 2, 0);
IMPL_SET_MEM_32(destination_ptr + 4, 0);
}
}
@ -243,10 +249,16 @@ void xeRtlInitUnicodeString(uint32_t destination_ptr, uint32_t source_ptr) {
const wchar_t* source =
source_ptr ? (const wchar_t*)IMPL_MEM_ADDR(source_ptr) : NULL;
uint16_t length = source ? (uint16_t)xestrlenw(source) : 0;
IMPL_SET_MEM_16(destination_ptr + 0, length * 2);
IMPL_SET_MEM_16(destination_ptr + 2, length * 2);
IMPL_SET_MEM_32(destination_ptr + 4, source_ptr);
if (source) {
uint16_t length = (uint16_t)xestrlenw(source);
IMPL_SET_MEM_16(destination_ptr + 0, length * 2);
IMPL_SET_MEM_16(destination_ptr + 2, (length + 1) * 2);
IMPL_SET_MEM_32(destination_ptr + 4, source_ptr);
} else {
IMPL_SET_MEM_16(destination_ptr + 0, 0);
IMPL_SET_MEM_16(destination_ptr + 2, 0);
IMPL_SET_MEM_32(destination_ptr + 4, 0);
}
}

15
src/xenia/kernel/xbox.h
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@ -64,6 +64,14 @@ typedef uint32_t X_STATUS;
#define X_MEM_HEAP 0x40000000
#define X_MEM_16MB_PAGES 0x80000000 // from Valve SDK
// FILE_*, used by NtOpenFile
#define X_FILE_SUPERSEDED 0x00000000
#define X_FILE_OPENED 0x00000001
#define X_FILE_CREATED 0x00000002
#define X_FILE_OVERWRITTEN 0x00000003
#define X_FILE_EXISTS 0x00000004
#define X_FILE_DOES_NOT_EXIST 0x00000005
// PAGE_*, used by NtAllocateVirtualMemory
#define X_PAGE_NOACCESS 0x00000001
@ -98,6 +106,13 @@ typedef uint32_t X_STATUS;
#define X_LANGUAGE_JAPANESE 2
typedef struct {
uint16_t length;
uint16_t maximum_length;
char* buffer;
} X_ANSI_STRING;
} // namespace kernel
} // namespace xe