| 1 | /* $Id: VBoxGuestR3Lib.cpp 101720 2023-11-02 15:21:13Z vboxsync $ */
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| 2 | /** @file
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| 3 | * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Core.
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| 4 | */
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| 5 |
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| 6 | /*
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| 7 | * Copyright (C) 2007-2023 Oracle and/or its affiliates.
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| 8 | *
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| 9 | * This file is part of VirtualBox base platform packages, as
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| 10 | * available from https://www.virtualbox.org.
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| 11 | *
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| 12 | * This program is free software; you can redistribute it and/or
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| 13 | * modify it under the terms of the GNU General Public License
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| 14 | * as published by the Free Software Foundation, in version 3 of the
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| 15 | * License.
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| 16 | *
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| 17 | * This program is distributed in the hope that it will be useful, but
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| 18 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 20 | * General Public License for more details.
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| 21 | *
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| 22 | * You should have received a copy of the GNU General Public License
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| 23 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 24 | *
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| 25 | * The contents of this file may alternatively be used under the terms
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| 26 | * of the Common Development and Distribution License Version 1.0
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| 27 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 28 | * in the VirtualBox distribution, in which case the provisions of the
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| 29 | * CDDL are applicable instead of those of the GPL.
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| 30 | *
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| 31 | * You may elect to license modified versions of this file under the
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| 32 | * terms and conditions of either the GPL or the CDDL or both.
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| 33 | *
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| 34 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 35 | */
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| 36 |
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| 37 |
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| 38 | /*********************************************************************************************************************************
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| 39 | * Header Files *
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| 40 | *********************************************************************************************************************************/
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| 41 | #if defined(RT_OS_WINDOWS)
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| 42 | # include <iprt/nt/nt-and-windows.h>
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| 43 |
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| 44 | #elif defined(RT_OS_OS2)
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| 45 | # define INCL_BASE
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| 46 | # define INCL_ERRORS
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| 47 | # include <os2.h>
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| 48 |
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| 49 | #elif defined(RT_OS_DARWIN) \
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| 50 | || defined(RT_OS_FREEBSD) \
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| 51 | || defined(RT_OS_HAIKU) \
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| 52 | || defined(RT_OS_LINUX) \
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| 53 | || defined(RT_OS_NETBSD) \
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| 54 | || defined(RT_OS_SOLARIS)
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| 55 | # include <sys/types.h>
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| 56 | # include <sys/stat.h>
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| 57 | # if defined(RT_OS_DARWIN) || defined(RT_OS_LINUX) || defined(RT_OS_NETBSD)
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| 58 | /** @todo check this on solaris+freebsd as well. */
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| 59 | # include <sys/ioctl.h>
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| 60 | # endif
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| 61 | # if defined(RT_OS_DARWIN)
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| 62 | # include <mach/mach_port.h>
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| 63 | # include <IOKit/IOKitLib.h>
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| 64 | # endif
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| 65 | # include <errno.h>
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| 66 | # include <unistd.h>
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| 67 | #endif
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| 68 |
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| 69 | #include <iprt/assert.h>
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| 70 | #include <iprt/asm.h>
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| 71 | #include <iprt/err.h>
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| 72 | #include <iprt/file.h>
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| 73 | #include <iprt/time.h>
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| 74 | #include <iprt/string.h>
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| 75 | #include <iprt/thread.h>
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| 76 | #include <VBox/log.h>
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| 77 | #include "VBoxGuestR3LibInternal.h"
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| 78 |
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| 79 | #ifdef VBOX_VBGLR3_XFREE86
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| 80 | /* Rather than try to resolve all the header file conflicts, I will just
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| 81 | prototype what we need here. */
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| 82 | # define XF86_O_RDWR 0x0002
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| 83 | typedef void *pointer;
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| 84 | extern "C" int xf86open(const char *, int, ...);
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| 85 | extern "C" int xf86close(int);
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| 86 | extern "C" int xf86ioctl(int, unsigned long, pointer);
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| 87 | # define VBOX_VBGLR3_XSERVER
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| 88 | #elif defined(VBOX_VBGLR3_XORG)
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| 89 | # include <sys/stat.h>
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| 90 | # include <fcntl.h>
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| 91 | # include <unistd.h>
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| 92 | # include <sys/ioctl.h>
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| 93 | # define xf86open open
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| 94 | # define xf86close close
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| 95 | # define xf86ioctl ioctl
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| 96 | # define XF86_O_RDWR O_RDWR
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| 97 | # define VBOX_VBGLR3_XSERVER
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| 98 | #endif
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| 99 |
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| 100 |
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| 101 | /*********************************************************************************************************************************
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| 102 | * Global Variables *
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| 103 | *********************************************************************************************************************************/
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| 104 | /** The VBoxGuest device handle. */
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| 105 | #ifdef VBOX_VBGLR3_XSERVER
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| 106 | static int g_File = -1;
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| 107 | #elif defined(RT_OS_WINDOWS)
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| 108 | static HANDLE g_hFile = INVALID_HANDLE_VALUE;
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| 109 | #else
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| 110 | static RTFILE g_File = NIL_RTFILE;
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| 111 | #endif
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| 112 | /** User counter.
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| 113 | * A counter of the number of times the library has been initialised, for use with
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| 114 | * X.org drivers, where the library may be shared by multiple independent modules
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| 115 | * inside a single process space.
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| 116 | */
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| 117 | static uint32_t volatile g_cInits = 0;
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| 118 | #ifdef RT_OS_DARWIN
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| 119 | /** I/O Kit connection handle. */
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| 120 | static io_connect_t g_uConnection = 0;
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| 121 | #endif
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| 122 |
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| 123 |
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| 124 |
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| 125 | /**
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| 126 | * Implementation of VbglR3Init and VbglR3InitUser
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| 127 | */
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| 128 | static int vbglR3Init(const char *pszDeviceName)
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| 129 | {
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| 130 | int rc2;
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| 131 | uint32_t cInits = ASMAtomicIncU32(&g_cInits);
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| 132 | Assert(cInits > 0);
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| 133 | if (cInits > 1)
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| 134 | {
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| 135 | /*
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| 136 | * This will fail if two (or more) threads race each other calling VbglR3Init.
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| 137 | * However it will work fine for single threaded or otherwise serialized
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| 138 | * processed calling us more than once.
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| 139 | */
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| 140 | #ifdef RT_OS_WINDOWS
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| 141 | if (g_hFile == INVALID_HANDLE_VALUE)
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| 142 | #elif !defined (VBOX_VBGLR3_XSERVER)
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| 143 | if (g_File == NIL_RTFILE)
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| 144 | #else
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| 145 | if (g_File == -1)
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| 146 | #endif
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| 147 | return VERR_INTERNAL_ERROR;
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| 148 | return VINF_SUCCESS;
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| 149 | }
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| 150 | #if defined(RT_OS_WINDOWS)
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| 151 | if (g_hFile != INVALID_HANDLE_VALUE)
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| 152 | #elif !defined(VBOX_VBGLR3_XSERVER)
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| 153 | if (g_File != NIL_RTFILE)
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| 154 | #else
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| 155 | if (g_File != -1)
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| 156 | #endif
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| 157 | return VERR_INTERNAL_ERROR;
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| 158 |
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| 159 | #if defined(RT_OS_WINDOWS)
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| 160 | /*
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| 161 | * Have to use CreateFile here as we want to specify FILE_FLAG_OVERLAPPED
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| 162 | * and possible some other bits not available thru iprt/file.h.
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| 163 | */
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| 164 | HANDLE hFile = CreateFile(pszDeviceName,
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| 165 | GENERIC_READ | GENERIC_WRITE,
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| 166 | FILE_SHARE_READ | FILE_SHARE_WRITE,
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| 167 | NULL,
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| 168 | OPEN_EXISTING,
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| 169 | FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
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| 170 | NULL);
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| 171 |
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| 172 | if (hFile == INVALID_HANDLE_VALUE)
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| 173 | return VERR_OPEN_FAILED;
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| 174 | g_hFile = hFile;
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| 175 |
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| 176 | #elif defined(RT_OS_OS2)
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| 177 | /*
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| 178 | * We might wish to compile this with Watcom, so stick to
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| 179 | * the OS/2 APIs all the way. And in any case we have to use
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| 180 | * DosDevIOCtl for the requests, why not use Dos* for everything.
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| 181 | */
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| 182 | HFILE hf = NULLHANDLE;
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| 183 | ULONG ulAction = 0;
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| 184 | APIRET rc = DosOpen((PCSZ)pszDeviceName, &hf, &ulAction, 0, FILE_NORMAL,
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| 185 | OPEN_ACTION_OPEN_IF_EXISTS,
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| 186 | OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NOINHERIT | OPEN_SHARE_DENYNONE | OPEN_ACCESS_READWRITE,
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| 187 | NULL);
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| 188 | if (rc)
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| 189 | return RTErrConvertFromOS2(rc);
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| 190 |
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| 191 | if (hf < 16)
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| 192 | {
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| 193 | HFILE ahfs[16];
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| 194 | unsigned i;
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| 195 | for (i = 0; i < RT_ELEMENTS(ahfs); i++)
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| 196 | {
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| 197 | ahfs[i] = 0xffffffff;
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| 198 | rc = DosDupHandle(hf, &ahfs[i]);
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| 199 | if (rc)
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| 200 | break;
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| 201 | }
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| 202 |
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| 203 | if (i-- > 1)
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| 204 | {
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| 205 | ULONG fulState = 0;
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| 206 | rc = DosQueryFHState(ahfs[i], &fulState);
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| 207 | if (!rc)
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| 208 | {
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| 209 | fulState |= OPEN_FLAGS_NOINHERIT;
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| 210 | fulState &= OPEN_FLAGS_WRITE_THROUGH | OPEN_FLAGS_FAIL_ON_ERROR | OPEN_FLAGS_NO_CACHE | OPEN_FLAGS_NOINHERIT; /* Turn off non-participating bits. */
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| 211 | rc = DosSetFHState(ahfs[i], fulState);
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| 212 | }
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| 213 | if (!rc)
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| 214 | {
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| 215 | rc = DosClose(hf);
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| 216 | AssertMsg(!rc, ("%ld\n", rc));
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| 217 | hf = ahfs[i];
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| 218 | }
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| 219 | else
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| 220 | i++;
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| 221 | while (i-- > 0)
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| 222 | DosClose(ahfs[i]);
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| 223 | }
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| 224 | }
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| 225 | g_File = (RTFILE)hf;
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| 226 |
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| 227 | #elif defined(RT_OS_DARWIN)
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| 228 | /*
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| 229 | * Darwin is kind of special we need to engage the device via I/O first
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| 230 | * before we open it via the BSD device node.
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| 231 | */
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| 232 | /* IOKit */
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| 233 | mach_port_t MasterPort;
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| 234 | RT_GCC_NO_WARN_DEPRECATED_BEGIN
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| 235 | kern_return_t kr = IOMasterPort(MACH_PORT_NULL, &MasterPort); /* Deprecated since 12.0. */
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| 236 | RT_GCC_NO_WARN_DEPRECATED_END
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| 237 | if (kr != kIOReturnSuccess)
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| 238 | {
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| 239 | LogRel(("IOMasterPort -> %d\n", kr));
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| 240 | return VERR_GENERAL_FAILURE;
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| 241 | }
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| 242 |
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| 243 | CFDictionaryRef ClassToMatch = IOServiceMatching("org_virtualbox_VBoxGuest");
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| 244 | if (!ClassToMatch)
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| 245 | {
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| 246 | LogRel(("IOServiceMatching(\"org_virtualbox_VBoxGuest\") failed.\n"));
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| 247 | return VERR_GENERAL_FAILURE;
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| 248 | }
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| 249 |
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| 250 | RT_GCC_NO_WARN_DEPRECATED_BEGIN
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| 251 | io_service_t ServiceObject = IOServiceGetMatchingService(kIOMasterPortDefault, ClassToMatch); /* kIOMasterPortDefault: Deprecated since 12.0. */
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| 252 | RT_GCC_NO_WARN_DEPRECATED_END
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| 253 | if (!ServiceObject)
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| 254 | {
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| 255 | LogRel(("IOServiceGetMatchingService returned NULL\n"));
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| 256 | return VERR_NOT_FOUND;
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| 257 | }
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| 258 |
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| 259 | io_connect_t uConnection;
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| 260 | kr = IOServiceOpen(ServiceObject, mach_task_self(), VBOXGUEST_DARWIN_IOSERVICE_COOKIE, &uConnection);
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| 261 | IOObjectRelease(ServiceObject);
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| 262 | if (kr != kIOReturnSuccess)
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| 263 | {
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| 264 | LogRel(("IOServiceOpen returned %d. Driver open failed.\n", kr));
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| 265 | return VERR_OPEN_FAILED;
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| 266 | }
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| 267 |
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| 268 | /* Regular unix FD. */
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| 269 | RTFILE hFile;
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| 270 | int rc = RTFileOpen(&hFile, pszDeviceName, RTFILE_O_READWRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE);
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| 271 | if (RT_FAILURE(rc))
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| 272 | {
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| 273 | LogRel(("RTFileOpen(%s) returned %Rrc. Driver open failed.\n", pszDeviceName, rc));
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| 274 | IOServiceClose(uConnection);
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| 275 | return rc;
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| 276 | }
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| 277 | g_File = hFile;
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| 278 | g_uConnection = uConnection;
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| 279 |
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| 280 | #elif defined(VBOX_VBGLR3_XSERVER)
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| 281 | int File = xf86open(pszDeviceName, XF86_O_RDWR);
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| 282 | if (File == -1)
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| 283 | return VERR_OPEN_FAILED;
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| 284 | g_File = File;
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| 285 |
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| 286 | #else
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| 287 |
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| 288 | /* The default implementation. (linux, solaris, freebsd, netbsd, haiku) */
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| 289 | RTFILE File;
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| 290 | int rc = RTFileOpen(&File, pszDeviceName, RTFILE_O_READWRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE);
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| 291 | if (RT_FAILURE(rc))
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| 292 | return rc;
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| 293 | g_File = File;
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| 294 |
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| 295 | #endif
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| 296 |
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| 297 | /*
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| 298 | * Adjust the I/O control interface version.
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| 299 | */
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| 300 | {
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| 301 | VBGLIOCDRIVERVERSIONINFO VerInfo;
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| 302 |
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| 303 | RT_ZERO(VerInfo);
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| 304 |
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| 305 | VBGLREQHDR_INIT(&VerInfo.Hdr, DRIVER_VERSION_INFO);
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| 306 | VerInfo.u.In.uMinVersion = VBGL_IOC_VERSION & UINT32_C(0xffff0000);
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| 307 | VerInfo.u.In.uReqVersion = VBGL_IOC_VERSION;
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| 308 | VerInfo.u.In.uReserved1 = 0;
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| 309 | VerInfo.u.In.uReserved2 = 0;
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| 310 | rc2 = vbglR3DoIOCtl(VBGL_IOCTL_DRIVER_VERSION_INFO, &VerInfo.Hdr, sizeof(VerInfo));
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| 311 | #ifndef VBOX_VBGLR3_XSERVER
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| 312 | AssertRC(rc2); /* otherwise ignored for now*/
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| 313 | #endif
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| 314 | }
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| 315 |
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| 316 |
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| 317 | #ifndef VBOX_VBGLR3_XSERVER
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| 318 | /*
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| 319 | * Create release logger
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| 320 | */
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| 321 | PRTLOGGER pReleaseLogger;
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| 322 | static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
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| 323 | rc2 = RTLogCreate(&pReleaseLogger, 0, "all", "VBOX_RELEASE_LOG",
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| 324 | RT_ELEMENTS(s_apszGroups), &s_apszGroups[0], RTLOGDEST_USER, NULL);
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| 325 | /* This may legitimately fail if we are using the mini-runtime. */
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| 326 | if (RT_SUCCESS(rc2))
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| 327 | RTLogRelSetDefaultInstance(pReleaseLogger);
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| 328 | #endif
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| 329 |
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| 330 | return VINF_SUCCESS;
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| 331 | }
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| 332 |
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| 333 |
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| 334 | /**
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| 335 | * Open the VBox R3 Guest Library. This should be called by system daemons
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| 336 | * and processes.
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| 337 | */
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| 338 | VBGLR3DECL(int) VbglR3Init(void)
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| 339 | {
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| 340 | return vbglR3Init(VBOXGUEST_DEVICE_NAME);
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| 341 | }
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| 342 |
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| 343 |
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| 344 | /**
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| 345 | * Open the VBox R3 Guest Library. Equivalent to VbglR3Init, but for user
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| 346 | * session processes.
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| 347 | */
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| 348 | VBGLR3DECL(int) VbglR3InitUser(void)
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| 349 | {
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| 350 | return vbglR3Init(VBOXGUEST_USER_DEVICE_NAME);
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| 351 | }
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| 352 |
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| 353 |
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| 354 | VBGLR3DECL(void) VbglR3Term(void)
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| 355 | {
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| 356 | /*
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| 357 | * Decrement the reference count and see if we're the last one out.
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| 358 | */
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| 359 | uint32_t cInits = ASMAtomicDecU32(&g_cInits);
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| 360 | if (cInits > 0)
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| 361 | return;
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| 362 | #if !defined(VBOX_VBGLR3_XSERVER)
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| 363 | AssertReturnVoid(!cInits);
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| 364 |
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| 365 | # if defined(RT_OS_WINDOWS)
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| 366 | HANDLE hFile = g_hFile;
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| 367 | g_hFile = INVALID_HANDLE_VALUE;
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| 368 | AssertReturnVoid(hFile != INVALID_HANDLE_VALUE);
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| 369 | BOOL fRc = CloseHandle(hFile);
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| 370 | Assert(fRc); NOREF(fRc);
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| 371 |
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| 372 | # elif defined(RT_OS_OS2)
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| 373 | RTFILE File = g_File;
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| 374 | g_File = NIL_RTFILE;
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| 375 | AssertReturnVoid(File != NIL_RTFILE);
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| 376 | APIRET rc = DosClose((uintptr_t)File);
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| 377 | AssertMsg(!rc, ("%ld\n", rc));
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| 378 |
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| 379 | #elif defined(RT_OS_DARWIN)
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| 380 | io_connect_t uConnection = g_uConnection;
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| 381 | RTFILE hFile = g_File;
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| 382 | g_uConnection = 0;
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| 383 | g_File = NIL_RTFILE;
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| 384 | kern_return_t kr = IOServiceClose(uConnection);
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| 385 | AssertMsg(kr == kIOReturnSuccess, ("%#x (%d)\n", kr, kr)); NOREF(kr);
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| 386 | int rc = RTFileClose(hFile);
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| 387 | AssertRC(rc);
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| 388 |
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| 389 | # else /* The IPRT case. */
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| 390 | RTFILE File = g_File;
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| 391 | g_File = NIL_RTFILE;
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| 392 | AssertReturnVoid(File != NIL_RTFILE);
|
|---|
| 393 | int rc = RTFileClose(File);
|
|---|
| 394 | AssertRC(rc);
|
|---|
| 395 | # endif
|
|---|
| 396 |
|
|---|
| 397 | #else /* VBOX_VBGLR3_XSERVER */
|
|---|
| 398 | int File = g_File;
|
|---|
| 399 | g_File = -1;
|
|---|
| 400 | if (File == -1)
|
|---|
| 401 | return;
|
|---|
| 402 | xf86close(File);
|
|---|
| 403 | #endif /* VBOX_VBGLR3_XSERVER */
|
|---|
| 404 | }
|
|---|
| 405 |
|
|---|
| 406 |
|
|---|
| 407 | /**
|
|---|
| 408 | * Internal wrapper around various OS specific ioctl implementations.
|
|---|
| 409 | *
|
|---|
| 410 | * @returns VBox status code as returned by VBoxGuestCommonIOCtl, or
|
|---|
| 411 | * an failure returned by the OS specific ioctl APIs.
|
|---|
| 412 | *
|
|---|
| 413 | * @param uFunction The requested function.
|
|---|
| 414 | * @param pHdr The input and output request buffer.
|
|---|
| 415 | * @param cbReq The size of the request buffer.
|
|---|
| 416 | */
|
|---|
| 417 | int vbglR3DoIOCtlRaw(uintptr_t uFunction, PVBGLREQHDR pHdr, size_t cbReq)
|
|---|
| 418 | {
|
|---|
| 419 | Assert(cbReq == RT_MAX(pHdr->cbIn, pHdr->cbOut)); RT_NOREF1(cbReq);
|
|---|
| 420 | Assert(pHdr->cbOut != 0);
|
|---|
| 421 |
|
|---|
| 422 | #if defined(RT_OS_WINDOWS)
|
|---|
| 423 | # if 0 /*def USE_NT_DEVICE_IO_CONTROL_FILE*/
|
|---|
| 424 | IO_STATUS_BLOCK Ios;
|
|---|
| 425 | Ios.Status = -1;
|
|---|
| 426 | Ios.Information = 0;
|
|---|
| 427 | NTSTATUS rcNt = NtDeviceIoControlFile(g_hFile, NULL /*hEvent*/, NULL /*pfnApc*/, NULL /*pvApcCtx*/, &Ios,
|
|---|
| 428 | (ULONG)uFunction,
|
|---|
| 429 | pHdr /*pvInput */, pHdr->cbIn /* cbInput */,
|
|---|
| 430 | pHdr /*pvOutput*/, pHdr->cbOut /* cbOutput */);
|
|---|
| 431 | if (NT_SUCCESS(rcNt))
|
|---|
| 432 | {
|
|---|
| 433 | if (NT_SUCCESS(Ios.Status))
|
|---|
| 434 | return VINF_SUCCESS;
|
|---|
| 435 | rcNt = Ios.Status;
|
|---|
| 436 | }
|
|---|
| 437 | return RTErrConvertFromNtStatus(rcNt);
|
|---|
| 438 |
|
|---|
| 439 | # else
|
|---|
| 440 | DWORD cbReturned = (ULONG)pHdr->cbOut;
|
|---|
| 441 | if (DeviceIoControl(g_hFile, uFunction, pHdr, pHdr->cbIn, pHdr, cbReturned, &cbReturned, NULL))
|
|---|
| 442 | return 0;
|
|---|
| 443 | return RTErrConvertFromWin32(GetLastError());
|
|---|
| 444 | # endif
|
|---|
| 445 |
|
|---|
| 446 | #elif defined(RT_OS_OS2)
|
|---|
| 447 | ULONG cbOS2Parm = cbReq;
|
|---|
| 448 | APIRET rc = DosDevIOCtl((uintptr_t)g_File, VBGL_IOCTL_CATEGORY, uFunction, pHdr, cbReq, &cbOS2Parm, NULL, 0, NULL);
|
|---|
| 449 | if (RT_LIKELY(rc == NO_ERROR))
|
|---|
| 450 | return VINF_SUCCESS;
|
|---|
| 451 | return RTErrConvertFromOS2(rc);
|
|---|
| 452 |
|
|---|
| 453 | #elif defined(VBOX_VBGLR3_XSERVER)
|
|---|
| 454 | if (g_File != -1)
|
|---|
| 455 | {
|
|---|
| 456 | if (RT_LIKELY(xf86ioctl((int)g_File, uFunction, pHdr) >= 0))
|
|---|
| 457 | return VINF_SUCCESS;
|
|---|
| 458 | return VERR_FILE_IO_ERROR;
|
|---|
| 459 | }
|
|---|
| 460 | return VERR_INVALID_HANDLE;
|
|---|
| 461 |
|
|---|
| 462 | #else
|
|---|
| 463 | if (g_File != NIL_RTFILE)
|
|---|
| 464 | {
|
|---|
| 465 | if (RT_LIKELY(ioctl((int)(intptr_t)g_File, uFunction, pHdr) >= 0))
|
|---|
| 466 | return VINF_SUCCESS;
|
|---|
| 467 | return RTErrConvertFromErrno(errno);
|
|---|
| 468 | }
|
|---|
| 469 | return VERR_INVALID_HANDLE;
|
|---|
| 470 | #endif
|
|---|
| 471 | }
|
|---|
| 472 |
|
|---|
| 473 |
|
|---|
| 474 | /**
|
|---|
| 475 | * Internal wrapper around various OS specific ioctl implementations, that
|
|---|
| 476 | * returns the status from the header.
|
|---|
| 477 | *
|
|---|
| 478 | * @returns VBox status code as returned by VBoxGuestCommonIOCtl, or
|
|---|
| 479 | * an failure returned by the OS specific ioctl APIs.
|
|---|
| 480 | *
|
|---|
| 481 | * @param uFunction The requested function.
|
|---|
| 482 | * @param pHdr The input and output request buffer.
|
|---|
| 483 | * @param cbReq The size of the request buffer.
|
|---|
| 484 | */
|
|---|
| 485 | int vbglR3DoIOCtl(uintptr_t uFunction, PVBGLREQHDR pHdr, size_t cbReq)
|
|---|
| 486 | {
|
|---|
| 487 | int rc = vbglR3DoIOCtlRaw(uFunction, pHdr, cbReq);
|
|---|
| 488 | if (RT_SUCCESS(rc))
|
|---|
| 489 | rc = pHdr->rc;
|
|---|
| 490 | return rc;
|
|---|
| 491 | }
|
|---|
| 492 |
|
|---|
