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Diffstat (limited to 'src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibMisc.cpp')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibMisc.cpp | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibMisc.cpp b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibMisc.cpp new file mode 100644 index 00000000..5d334e14 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibMisc.cpp @@ -0,0 +1,135 @@ +/* $Id: VBoxGuestR3LibMisc.cpp $ */ +/** @file + * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Misc. + */ + +/* + * Copyright (C) 2007-2022 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 <VBox/log.h> +#include "VBoxGuestR3LibInternal.h" + + +/** + * Change the IRQ filter mask. + * + * @returns IPRT status code. + * @param fOr The OR mask. + * @param fNot The NOT mask. + */ +VBGLR3DECL(int) VbglR3CtlFilterMask(uint32_t fOr, uint32_t fNot) +{ + VBGLIOCCHANGEFILTERMASK Info; + VBGLREQHDR_INIT(&Info.Hdr, CHANGE_FILTER_MASK); + Info.u.In.fOrMask = fOr; + Info.u.In.fNotMask = fNot; + return vbglR3DoIOCtl(VBGL_IOCTL_CHANGE_FILTER_MASK, &Info.Hdr, sizeof(Info)); +} + + +/** + * Report a change in the capabilities that we support to the host. + * + * @returns IPRT status code. + * @param fOr Capabilities which have been added. + * @param fNot Capabilities which have been removed. + * + * @todo Move to a different file. + */ +VBGLR3DECL(int) VbglR3SetGuestCaps(uint32_t fOr, uint32_t fNot) +{ + VBGLIOCSETGUESTCAPS Info; + VBGLREQHDR_INIT(&Info.Hdr, CHANGE_GUEST_CAPABILITIES); + Info.u.In.fOrMask = fOr; + Info.u.In.fNotMask = fNot; + return vbglR3DoIOCtl(VBGL_IOCTL_CHANGE_GUEST_CAPABILITIES, &Info.Hdr, sizeof(Info)); +} + + +/** + * Acquire capabilities to report to the host. + * + * The capabilities which can be acquired are the same as those reported by + * VbglR3SetGuestCaps, and once a capability has been acquired once is is + * switched to "acquire mode" and can no longer be set using VbglR3SetGuestCaps. + * Capabilities can also be switched to acquire mode without actually being + * acquired. A client can not acquire a capability which has been acquired and + * not released by another client. Capabilities acquired are automatically + * released on session termination. + * + * @returns IPRT status code + * @returns VERR_RESOURCE_BUSY and acquires nothing if another client has + * acquired and not released at least one of the @a fOr capabilities + * @param fOr Capabilities to acquire or to switch to acquire mode + * @param fNot Capabilities to release + * @param fConfig if set, capabilities in @a fOr are switched to acquire mode + * but not acquired, and @a fNot is ignored. See + * VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE for details. + */ +VBGLR3DECL(int) VbglR3AcquireGuestCaps(uint32_t fOr, uint32_t fNot, bool fConfig) +{ + VBGLIOCACQUIREGUESTCAPS Info; + VBGLREQHDR_INIT(&Info.Hdr, ACQUIRE_GUEST_CAPABILITIES); + Info.u.In.fFlags = fConfig ? VBGL_IOC_AGC_FLAGS_CONFIG_ACQUIRE_MODE : VBGL_IOC_AGC_FLAGS_DEFAULT; + Info.u.In.fOrMask = fOr; + Info.u.In.fNotMask = fNot; + return vbglR3DoIOCtl(VBGL_IOCTL_ACQUIRE_GUEST_CAPABILITIES, &Info.Hdr, sizeof(Info)); +} + + +/** + * Query the session ID of this VM. + * + * The session id is an unique identifier that gets changed for each VM start, + * reset or restore. Useful for detection a VM restore. + * + * @returns IPRT status code. + * @param pu64IdSession Session id (out). This is NOT changed on + * failure, so the caller can depend on this to + * deal with backward compatibility (see + * VBoxServiceVMInfoWorker() for an example.) + */ +VBGLR3DECL(int) VbglR3GetSessionId(uint64_t *pu64IdSession) +{ + VMMDevReqSessionId Req; + + vmmdevInitRequest(&Req.header, VMMDevReq_GetSessionId); + Req.idSession = 0; + int rc = vbglR3GRPerform(&Req.header); + if (RT_SUCCESS(rc)) + *pu64IdSession = Req.idSession; + + return rc; +} |