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Diffstat (limited to 'src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibGuestUser.cpp')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibGuestUser.cpp | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibGuestUser.cpp b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibGuestUser.cpp new file mode 100644 index 00000000..92bc9037 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibGuestUser.cpp @@ -0,0 +1,119 @@ +/* $Id: VBoxGuestR3LibGuestUser.cpp $ */ +/** @file + * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, + * guest user reporting / utility functions. + */ + +/* + * Copyright (C) 2013-2022 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/assert.h> +#include <VBox/log.h> +#include <iprt/errcore.h> +#include <iprt/mem.h> +#include <iprt/string.h> + +#include "VBoxGuestR3LibInternal.h" + + +/** + * Reports a state change of a specific guest user. + * + * @returns IPRT status value + * @param pszUser Guest user name to report state for. + * @param pszDomain Domain the guest user's account is bound to. + * @param enmState Guest user state to report. + * @param puDetails Pointer to state details. Optional. + * @param cbDetails Size (in bytes) of state details. Pass 0 + * if puDetails is NULL. + */ +VBGLR3DECL(int) VbglR3GuestUserReportState(const char *pszUser, const char *pszDomain, VBoxGuestUserState enmState, + uint8_t *puDetails, uint32_t cbDetails) +{ + AssertPtrReturn(pszUser, VERR_INVALID_POINTER); + /* pszDomain is optional. */ + /* puDetails is optional. */ + AssertReturn(cbDetails == 0 || puDetails != NULL, VERR_INVALID_PARAMETER); + AssertReturn(cbDetails < 16U*_1M, VERR_OUT_OF_RANGE); + + uint32_t cbBase = sizeof(VMMDevReportGuestUserState); + uint32_t cbUser = (uint32_t)strlen(pszUser) + 1; /* Include terminating zero */ + uint32_t cbDomain = pszDomain ? (uint32_t)strlen(pszDomain) + 1 /* Ditto */ : 0; + + /* Allocate enough space for all fields. */ + uint32_t cbSize = cbBase + + cbUser + + cbDomain + + cbDetails; + VMMDevReportGuestUserState *pReport = (VMMDevReportGuestUserState *)RTMemAllocZ(cbSize); + if (!pReport) + return VERR_NO_MEMORY; + + int rc = vmmdevInitRequest(&pReport->header, VMMDevReq_ReportGuestUserState); + if (RT_SUCCESS(rc)) + { + pReport->header.size = cbSize; + + pReport->status.state = enmState; + pReport->status.cbUser = cbUser; + pReport->status.cbDomain = cbDomain; + pReport->status.cbDetails = cbDetails; + + /* + * Note: cbOffDynamic contains the first dynamic array entry within + * VBoxGuestUserStatus. + * Therefore it's vital to *not* change the order of the struct members + * without altering this code. Don't try this at home. + */ + uint32_t cbOffDynamic = RT_UOFFSETOF(VBoxGuestUserStatus, szUser); + + /* pDynamic marks the beginning for the dynamically allocated areas. */ + uint8_t *pDynamic = (uint8_t *)&pReport->status; + pDynamic += cbOffDynamic; + AssertPtr(pDynamic); + + memcpy(pDynamic, pszUser, cbUser); + if (cbDomain) + memcpy(pDynamic + cbUser, pszDomain, cbDomain); + if (cbDetails) + memcpy(pDynamic + cbUser + cbDomain, puDetails, cbDetails); + + rc = vbglR3GRPerform(&pReport->header); + } + + RTMemFree(pReport); + return rc; +} + |