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1f377076d7
Not all files are included, but these are necessary to compile cdrom driver. So far it can only be statically linked with drivers, a proper implementation requires wdfldr helper driver
154 lines
3.4 KiB
C++
154 lines
3.4 KiB
C++
/*++
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Copyright (c) Microsoft Corporation
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Module Name:
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FxStringApi.cpp
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Abstract:
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This module implements the "C" interface to the collection object.
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Author:
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Environment:
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Both kernel and user mode
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Revision History:
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--*/
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#include "fxsupportpch.hpp"
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extern "C" {
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// #include "FxStringAPI.tmh"
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}
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extern "C" {
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_Must_inspect_result_
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__drv_maxIRQL(PASSIVE_LEVEL)
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NTSTATUS
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STDCALL
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WDFEXPORT(WdfStringCreate)(
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__in
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PWDF_DRIVER_GLOBALS DriverGlobals,
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__in_opt
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PCUNICODE_STRING UnicodeString,
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__in_opt
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PWDF_OBJECT_ATTRIBUTES StringAttributes,
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__out
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WDFSTRING* String
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)
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{
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DDI_ENTRY();
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PFX_DRIVER_GLOBALS pFxDriverGlobals;
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FxString* pString;
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NTSTATUS status;
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pFxDriverGlobals = GetFxDriverGlobals(DriverGlobals);
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//
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// Get the parent's globals if it is present
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//
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if (NT_SUCCESS(FxValidateObjectAttributesForParentHandle(pFxDriverGlobals,
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StringAttributes))) {
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FxObject* pParent;
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FxObjectHandleGetPtrAndGlobals(pFxDriverGlobals,
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StringAttributes->ParentObject,
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FX_TYPE_OBJECT,
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(PVOID*)&pParent,
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&pFxDriverGlobals);
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}
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FxPointerNotNull(pFxDriverGlobals, String);
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*String = NULL;
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status = FxVerifierCheckIrqlLevel(pFxDriverGlobals, PASSIVE_LEVEL);
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if (!NT_SUCCESS(status)) {
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return status;
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}
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status = FxValidateObjectAttributes(pFxDriverGlobals, StringAttributes);
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if (!NT_SUCCESS(status)) {
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return status;
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}
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if (UnicodeString != NULL) {
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status = FxValidateUnicodeString(pFxDriverGlobals, UnicodeString);
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if (!NT_SUCCESS(status)) {
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return status;
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}
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}
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pString = new (pFxDriverGlobals, StringAttributes) FxString(pFxDriverGlobals);
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if (pString != NULL) {
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if (UnicodeString != NULL) {
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status = pString->Assign(UnicodeString);
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}
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if (NT_SUCCESS(status)) {
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status = pString->Commit(StringAttributes, (WDFOBJECT*)String);
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}
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if (!NT_SUCCESS(status)) {
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pString->DeleteFromFailedCreate();
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pString = NULL;
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}
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}
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else {
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status = STATUS_INSUFFICIENT_RESOURCES;
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DoTraceLevelMessage(
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pFxDriverGlobals, TRACE_LEVEL_ERROR, TRACINGERROR,
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"Could not allocate WDFSTRING handle, %!STATUS!", status);
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}
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return status;
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}
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__drv_maxIRQL(PASSIVE_LEVEL)
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VOID
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STDCALL
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WDFEXPORT(WdfStringGetUnicodeString)(
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__in
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PWDF_DRIVER_GLOBALS DriverGlobals,
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__in
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WDFSTRING String,
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__out
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PUNICODE_STRING UnicodeString
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)
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{
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DDI_ENTRY();
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PFX_DRIVER_GLOBALS pFxDriverGlobals;
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FxString* pString;
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NTSTATUS status;
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FxObjectHandleGetPtrAndGlobals(GetFxDriverGlobals(DriverGlobals),
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String,
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FX_TYPE_STRING,
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(PVOID*) &pString,
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&pFxDriverGlobals);
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FxPointerNotNull(pFxDriverGlobals, UnicodeString);
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status = FxVerifierCheckIrqlLevel(pFxDriverGlobals, PASSIVE_LEVEL);
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if (!NT_SUCCESS(status)) {
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return;
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}
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RtlCopyMemory(UnicodeString,
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pString->GetUnicodeString(),
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sizeof(UNICODE_STRING));
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}
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} // extern "C"
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