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Diffstat (limited to 'src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibAdditions.cpp')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibAdditions.cpp | 363 |
1 files changed, 363 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibAdditions.cpp b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibAdditions.cpp new file mode 100644 index 00000000..2ee88509 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibAdditions.cpp @@ -0,0 +1,363 @@ +/* $Id: VBoxGuestR3LibAdditions.cpp $ */ +/** @file + * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Additions Info. + */ + +/* + * Copyright (C) 2007-2023 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included + * in the VirtualBox distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + * + * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/err.h> +#include <iprt/mem.h> +#include <iprt/path.h> +#include <iprt/string.h> +#ifdef RT_OS_WINDOWS +# include <iprt/utf16.h> +#endif +#include <VBox/log.h> +#include <VBox/version.h> +#include "VBoxGuestR3LibInternal.h" + + + +#ifdef RT_OS_WINDOWS + +/** + * Opens the "VirtualBox Guest Additions" registry key. + * + * @returns IPRT status code + * @param phKey Receives key handle on success. The returned handle must + * be closed by calling vbglR3WinCloseRegKey. + */ +static int vbglR3WinOpenAdditionRegisterKey(PHKEY phKey) +{ + /* + * Current vendor first. We keep the older ones just for the case that + * the caller isn't actually installed yet (no real use case AFAIK). + */ + static PCRTUTF16 s_apwszKeys[] = + { + L"SOFTWARE\\" RT_LSTR(VBOX_VENDOR_SHORT) L"\\VirtualBox Guest Additions", +#ifdef RT_ARCH_AMD64 + L"SOFTWARE\\Wow6432Node\\" RT_LSTR(VBOX_VENDOR_SHORT) L"\\VirtualBox Guest Additions", +#endif + L"SOFTWARE\\Sun\\VirtualBox Guest Additions", +#ifdef RT_ARCH_AMD64 + L"SOFTWARE\\Wow6432Node\\Sun\\VirtualBox Guest Additions", +#endif + L"SOFTWARE\\Sun\\xVM VirtualBox Guest Additions", +#ifdef RT_ARCH_AMD64 + L"SOFTWARE\\Wow6432Node\\Sun\\xVM VirtualBox Guest Additions", +#endif + }; + int rc = VERR_NOT_FOUND; + for (uint32_t i = 0; i < RT_ELEMENTS(s_apwszKeys); i++) + { + LSTATUS lrc = RegOpenKeyExW(HKEY_LOCAL_MACHINE, s_apwszKeys[i], 0 /* ulOptions*/, KEY_READ, phKey); + if (lrc == ERROR_SUCCESS) + return VINF_SUCCESS; + if (i == 0) + rc = RTErrConvertFromWin32(lrc); + } + return rc; +} + + +/** + * Closes the registry handle returned by vbglR3WinOpenAdditionRegisterKey(). + * + * @returns @a rc or IPRT failure status. + * @param hKey Handle to close. + * @param rc The current IPRT status of the operation. Error + * condition takes precedence over errors from this call. + */ +static int vbglR3WinCloseRegKey(HKEY hKey, int rc) +{ + LSTATUS lrc = RegCloseKey(hKey); + if ( lrc == ERROR_SUCCESS + || RT_FAILURE(rc)) + return rc; + return RTErrConvertFromWin32(lrc); +} + + +/** + * Queries a string value from a specified registry key. + * + * @return IPRT status code. + * @param hKey Handle of registry key to use. + * @param pwszValueName The name of the value to query. + * @param cbHint Size hint. + * @param ppszValue Where to return value string on success. Free + * with RTStrFree. + */ +static int vbglR3QueryRegistryString(HKEY hKey, PCRTUTF16 pwszValueName, uint32_t cbHint, char **ppszValue) +{ + AssertPtr(pwszValueName); + AssertPtrReturn(ppszValue, VERR_INVALID_POINTER); + + /* + * First try. + */ + int rc; + DWORD dwType; + DWORD cbTmp = cbHint; + PRTUTF16 pwszTmp = (PRTUTF16)RTMemTmpAllocZ(cbTmp + sizeof(RTUTF16)); + if (pwszTmp) + { + LSTATUS lrc = RegQueryValueExW(hKey, pwszValueName, NULL, &dwType, (BYTE *)pwszTmp, &cbTmp); + if (lrc == ERROR_MORE_DATA) + { + /* + * Allocate larger buffer and try again. + */ + RTMemTmpFree(pwszTmp); + cbTmp += 16; + pwszTmp = (PRTUTF16)RTMemTmpAllocZ(cbTmp + sizeof(RTUTF16)); + if (!pwszTmp) + { + *ppszValue = NULL; + return VERR_NO_TMP_MEMORY; + } + lrc = RegQueryValueExW(hKey, pwszValueName, NULL, &dwType, (BYTE *)pwszTmp, &cbTmp); + } + if (lrc == ERROR_SUCCESS) + { + /* + * Check the type and convert to UTF-8. + */ + if (dwType == REG_SZ) + rc = RTUtf16ToUtf8(pwszTmp, ppszValue); + else + rc = VERR_WRONG_TYPE; + } + else + rc = RTErrConvertFromWin32(lrc); + RTMemTmpFree(pwszTmp); + } + else + rc = VERR_NO_TMP_MEMORY; + if (RT_SUCCESS(rc)) + return rc; + *ppszValue = NULL; + return rc; +} + +#endif /* RT_OS_WINDOWS */ + + +/** + * Fallback for VbglR3GetAdditionsVersion. + * + * @copydoc VbglR3GetAdditionsVersion + */ +static int vbglR3GetAdditionsCompileTimeVersion(char **ppszVer, char **ppszVerExt, char **ppszRev) +{ + int rc = VINF_SUCCESS; + if (ppszVer) + rc = RTStrDupEx(ppszVer, VBOX_VERSION_STRING_RAW); + if (RT_SUCCESS(rc)) + { + if (ppszVerExt) + rc = RTStrDupEx(ppszVerExt, VBOX_VERSION_STRING); + if (RT_SUCCESS(rc)) + { + if (ppszRev) + rc = RTStrDupEx(ppszRev, RT_XSTR(VBOX_SVN_REV)); + if (RT_SUCCESS(rc)) + return VINF_SUCCESS; + + /* bail out: */ + } + if (ppszVerExt) + { + RTStrFree(*ppszVerExt); + *ppszVerExt = NULL; + } + } + if (ppszVer) + { + RTStrFree(*ppszVer); + *ppszVer = NULL; + } + return rc; +} + + +/** + * Retrieves the installed Guest Additions version and/or revision. + * + * @returns IPRT status code + * @param ppszVer Receives pointer of allocated raw version string + * (major.minor.build). NULL is accepted. The returned + * pointer must be freed using RTStrFree(). + * @param ppszVerExt Receives pointer of allocated full version string + * (raw version + vendor suffix(es)). NULL is + * accepted. The returned pointer must be freed using + * RTStrFree(). + * @param ppszRev Receives pointer of allocated revision string. NULL is + * accepted. The returned pointer must be freed using + * RTStrFree(). + */ +VBGLR3DECL(int) VbglR3GetAdditionsVersion(char **ppszVer, char **ppszVerExt, char **ppszRev) +{ + /* + * Zap the return value up front. + */ + if (ppszVer) + *ppszVer = NULL; + if (ppszVerExt) + *ppszVerExt = NULL; + if (ppszRev) + *ppszRev = NULL; + +#ifdef RT_OS_WINDOWS + HKEY hKey; + int rc = vbglR3WinOpenAdditionRegisterKey(&hKey); + if (RT_SUCCESS(rc)) + { + /* + * Version. + */ + if (ppszVer) + rc = vbglR3QueryRegistryString(hKey, L"Version", 64, ppszVer); + + if ( RT_SUCCESS(rc) + && ppszVerExt) + rc = vbglR3QueryRegistryString(hKey, L"VersionExt", 128, ppszVerExt); + + /* + * Revision. + */ + if ( RT_SUCCESS(rc) + && ppszRev) + rc = vbglR3QueryRegistryString(hKey, L"Revision", 64, ppszRev); + + rc = vbglR3WinCloseRegKey(hKey, rc); + + /* Clean up allocated strings on error. */ + if (RT_FAILURE(rc)) + { + if (ppszVer) + { + RTStrFree(*ppszVer); + *ppszVer = NULL; + } + if (ppszVerExt) + { + RTStrFree(*ppszVerExt); + *ppszVerExt = NULL; + } + if (ppszRev) + { + RTStrFree(*ppszRev); + *ppszRev = NULL; + } + } + } + /* + * No registry entries found, return the version string compiled into this binary. + */ + else + rc = vbglR3GetAdditionsCompileTimeVersion(ppszVer, ppszVerExt, ppszRev); + return rc; + +#else /* !RT_OS_WINDOWS */ + /* + * On non-Windows platforms just return the compile-time version string. + */ + return vbglR3GetAdditionsCompileTimeVersion(ppszVer, ppszVerExt, ppszRev); +#endif /* !RT_OS_WINDOWS */ +} + + +/** + * Retrieves the installation path of Guest Additions. + * + * @returns IPRT status code + * @param ppszPath Receives pointer of allocated installation path string. + * The returned pointer must be freed using + * RTStrFree(). + */ +VBGLR3DECL(int) VbglR3GetAdditionsInstallationPath(char **ppszPath) +{ + int rc; + +#ifdef RT_OS_WINDOWS + /* + * Get it from the registry. + */ + HKEY hKey; + rc = vbglR3WinOpenAdditionRegisterKey(&hKey); + if (RT_SUCCESS(rc)) + { + rc = vbglR3QueryRegistryString(hKey, L"InstallDir", MAX_PATH * sizeof(RTUTF16), ppszPath); + if (RT_SUCCESS(rc)) + RTPathChangeToUnixSlashes(*ppszPath, true /*fForce*/); + rc = vbglR3WinCloseRegKey(hKey, rc); + } +#else + /** @todo implement me */ + rc = VERR_NOT_IMPLEMENTED; + RT_NOREF1(ppszPath); +#endif + return rc; +} + + +/** + * Reports the Guest Additions status of a certain facility to the host. + * + * @returns IPRT status code + * @param enmFacility The facility to report the status on. + * @param enmStatus The new status of the facility. + * @param fReserved Flags reserved for future hacks. + */ +VBGLR3DECL(int) VbglR3ReportAdditionsStatus(VBoxGuestFacilityType enmFacility, VBoxGuestFacilityStatus enmStatus, + uint32_t fReserved) +{ + VMMDevReportGuestStatus Report; + RT_ZERO(Report); + int rc = vmmdevInitRequest(&Report.header, VMMDevReq_ReportGuestStatus); + if (RT_SUCCESS(rc)) + { + Report.guestStatus.facility = enmFacility; + Report.guestStatus.status = enmStatus; + Report.guestStatus.flags = fReserved; + + rc = vbglR3GRPerform(&Report.header); + } + return rc; +} + |