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Basic NtCreateFile.

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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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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);
}