| 1 | /* $Id: RTProcQueryParent-r3-nt.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * IPRT - Process, Windows.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2019 Oracle Corporation
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License (GPL) as published by the Free Software
|
|---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
|---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
|---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * The contents of this file may alternatively be used under the terms
|
|---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
|---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
|---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 22 | *
|
|---|
| 23 | * You may elect to license modified versions of this file under the
|
|---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 25 | */
|
|---|
| 26 |
|
|---|
| 27 |
|
|---|
| 28 | /*********************************************************************************************************************************
|
|---|
| 29 | * Header Files *
|
|---|
| 30 | *********************************************************************************************************************************/
|
|---|
| 31 | #define LOG_GROUP RTLOGGROUP_PROCESS
|
|---|
| 32 | #include <iprt/nt/nt.h>
|
|---|
| 33 |
|
|---|
| 34 | #include <iprt/process.h>
|
|---|
| 35 | #include "internal/iprt.h"
|
|---|
| 36 |
|
|---|
| 37 | #include <iprt/assert.h>
|
|---|
| 38 | #include <iprt/errcore.h>
|
|---|
| 39 |
|
|---|
| 40 |
|
|---|
| 41 |
|
|---|
| 42 | RTR3DECL(int) RTProcQueryParent(RTPROCESS hProcess, PRTPROCESS phParent)
|
|---|
| 43 | {
|
|---|
| 44 | NTSTATUS rcNt;
|
|---|
| 45 | HANDLE hClose = RTNT_INVALID_HANDLE_VALUE;
|
|---|
| 46 | HANDLE hNtProc;
|
|---|
| 47 |
|
|---|
| 48 | /*
|
|---|
| 49 | * Open the process. We take a shortcut if it's the current process.
|
|---|
| 50 | */
|
|---|
| 51 | if (hProcess == RTProcSelf())
|
|---|
| 52 | hNtProc = NtCurrentProcess();
|
|---|
| 53 | else
|
|---|
| 54 | {
|
|---|
| 55 | CLIENT_ID ClientId;
|
|---|
| 56 | ClientId.UniqueProcess = (HANDLE)(uintptr_t)hProcess;
|
|---|
| 57 | ClientId.UniqueThread = NULL;
|
|---|
| 58 |
|
|---|
| 59 | OBJECT_ATTRIBUTES ObjAttrs;
|
|---|
| 60 | InitializeObjectAttributes(&ObjAttrs, NULL, OBJ_CASE_INSENSITIVE, NULL, NULL);
|
|---|
| 61 |
|
|---|
| 62 | rcNt = NtOpenProcess(&hClose, PROCESS_QUERY_LIMITED_INFORMATION, &ObjAttrs, &ClientId);
|
|---|
| 63 | if (!NT_SUCCESS(rcNt))
|
|---|
| 64 | rcNt = NtOpenProcess(&hClose, PROCESS_QUERY_INFORMATION, &ObjAttrs, &ClientId);
|
|---|
| 65 | if (!NT_SUCCESS(rcNt))
|
|---|
| 66 | return RTErrConvertFromNtStatus(rcNt);
|
|---|
| 67 | hNtProc = hClose;
|
|---|
| 68 | }
|
|---|
| 69 |
|
|---|
| 70 | /*
|
|---|
| 71 | * Query the information.
|
|---|
| 72 | */
|
|---|
| 73 | int rc;
|
|---|
| 74 | PROCESS_BASIC_INFORMATION BasicInfo;
|
|---|
| 75 | ULONG cbIgn;
|
|---|
| 76 | rcNt = NtQueryInformationProcess(hNtProc, ProcessBasicInformation, &BasicInfo, sizeof(BasicInfo), &cbIgn);
|
|---|
| 77 | if (NT_SUCCESS(rcNt))
|
|---|
| 78 | {
|
|---|
| 79 | *phParent = BasicInfo.InheritedFromUniqueProcessId;
|
|---|
| 80 | rc = VINF_SUCCESS;
|
|---|
| 81 | }
|
|---|
| 82 | else
|
|---|
| 83 | rc = RTErrConvertFromNtStatus(rcNt);
|
|---|
| 84 |
|
|---|
| 85 | /*
|
|---|
| 86 | * Clean up.
|
|---|
| 87 | */
|
|---|
| 88 | if (hClose != RTNT_INVALID_HANDLE_VALUE)
|
|---|
| 89 | NtClose(hClose);
|
|---|
| 90 |
|
|---|
| 91 | return rc;
|
|---|
| 92 | }
|
|---|
| 93 |
|
|---|
