diff options
Diffstat (limited to 'src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibHostChannel.cpp')
| -rw-r--r-- | src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibHostChannel.cpp | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibHostChannel.cpp b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibHostChannel.cpp new file mode 100644 index 00000000..ec4a7fe0 --- /dev/null +++ b/src/VBox/Additions/common/VBoxGuest/lib/VBoxGuestR3LibHostChannel.cpp @@ -0,0 +1,235 @@ +/* $Id: VBoxGuestR3LibHostChannel.cpp $ */ +/** @file + * VBoxGuestR3Lib - Ring-3 Support Library for VirtualBox guest additions, Host Channel. + */ + +/* + * Copyright (C) 2012-2022 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 + */ + + +#include <iprt/mem.h> + +#include <VBox/HostServices/VBoxHostChannel.h> + +#include "VBoxGuestR3LibInternal.h" + + +VBGLR3DECL(int) VbglR3HostChannelInit(uint32_t *pidClient) +{ + return VbglR3HGCMConnect("VBoxHostChannel", pidClient); +} + +VBGLR3DECL(void) VbglR3HostChannelTerm(uint32_t idClient) +{ + VbglR3HGCMDisconnect(idClient); +} + +VBGLR3DECL(int) VbglR3HostChannelAttach(uint32_t *pu32ChannelHandle, + uint32_t u32HGCMClientId, + const char *pszName, + uint32_t u32Flags) +{ + /* Make a heap copy of the name, because HGCM can not use some of other memory types. */ + size_t cbName = strlen(pszName) + 1; + char *pszCopy = (char *)RTMemAlloc(cbName); + if (pszCopy == NULL) + { + return VERR_NO_MEMORY; + } + + memcpy(pszCopy, pszName, cbName); + + VBoxHostChannelAttach parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_ATTACH, 3); + VbglHGCMParmPtrSet(&parms.name, pszCopy, (uint32_t)cbName); + VbglHGCMParmUInt32Set(&parms.flags, u32Flags); + VbglHGCMParmUInt32Set(&parms.handle, 0); + + int rc = VbglR3HGCMCall(&parms.hdr, sizeof(parms)); + + if (RT_SUCCESS(rc)) + *pu32ChannelHandle = parms.handle.u.value32; + + RTMemFree(pszCopy); + + return rc; +} + +VBGLR3DECL(void) VbglR3HostChannelDetach(uint32_t u32ChannelHandle, + uint32_t u32HGCMClientId) +{ + VBoxHostChannelDetach parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_DETACH, 1); + VbglHGCMParmUInt32Set(&parms.handle, u32ChannelHandle); + + VbglR3HGCMCall(&parms.hdr, sizeof(parms)); +} + +VBGLR3DECL(int) VbglR3HostChannelSend(uint32_t u32ChannelHandle, + uint32_t u32HGCMClientId, + void *pvData, + uint32_t cbData) +{ + VBoxHostChannelSend parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_SEND, 2); + VbglHGCMParmUInt32Set(&parms.handle, u32ChannelHandle); + VbglHGCMParmPtrSet(&parms.data, pvData, cbData); + + return VbglR3HGCMCall(&parms.hdr, sizeof(parms)); +} + +VBGLR3DECL(int) VbglR3HostChannelRecv(uint32_t u32ChannelHandle, + uint32_t u32HGCMClientId, + void *pvData, + uint32_t cbData, + uint32_t *pu32SizeReceived, + uint32_t *pu32SizeRemaining) +{ + VBoxHostChannelRecv parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_RECV, 4); + VbglHGCMParmUInt32Set(&parms.handle, u32ChannelHandle); + VbglHGCMParmPtrSet(&parms.data, pvData, cbData); + VbglHGCMParmUInt32Set(&parms.sizeReceived, 0); + VbglHGCMParmUInt32Set(&parms.sizeRemaining, 0); + + int rc = VbglR3HGCMCall(&parms.hdr, sizeof(parms)); + + if (RT_SUCCESS(rc)) + { + *pu32SizeReceived = parms.sizeReceived.u.value32; + *pu32SizeRemaining = parms.sizeRemaining.u.value32; + } + + return rc; +} + +VBGLR3DECL(int) VbglR3HostChannelControl(uint32_t u32ChannelHandle, + uint32_t u32HGCMClientId, + uint32_t u32Code, + void *pvParm, + uint32_t cbParm, + void *pvData, + uint32_t cbData, + uint32_t *pu32SizeDataReturned) +{ + VBoxHostChannelControl parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_CONTROL, 5); + VbglHGCMParmUInt32Set(&parms.handle, u32ChannelHandle); + VbglHGCMParmUInt32Set(&parms.code, u32Code); + VbglHGCMParmPtrSet(&parms.parm, pvParm, cbParm); + VbglHGCMParmPtrSet(&parms.data, pvData, cbData); + VbglHGCMParmUInt32Set(&parms.sizeDataReturned, 0); + + int rc = VbglR3HGCMCall(&parms.hdr, sizeof(parms)); + + if (RT_SUCCESS(rc)) + { + *pu32SizeDataReturned = parms.sizeDataReturned.u.value32; + } + + return rc; +} + +VBGLR3DECL(int) VbglR3HostChannelEventWait(uint32_t *pu32ChannelHandle, + uint32_t u32HGCMClientId, + uint32_t *pu32EventId, + void *pvParm, + uint32_t cbParm, + uint32_t *pu32SizeReturned) +{ + VBoxHostChannelEventWait parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_EVENT_WAIT, 4); + VbglHGCMParmUInt32Set(&parms.handle, 0); + VbglHGCMParmUInt32Set(&parms.id, 0); + VbglHGCMParmPtrSet(&parms.parm, pvParm, cbParm); + VbglHGCMParmUInt32Set(&parms.sizeReturned, 0); + + int rc = VbglR3HGCMCall(&parms.hdr, sizeof(parms)); + + if (RT_SUCCESS(rc)) + { + *pu32ChannelHandle = parms.handle.u.value32; + *pu32EventId = parms.id.u.value32; + *pu32SizeReturned = parms.sizeReturned.u.value32; + } + + return rc; +} + +VBGLR3DECL(int) VbglR3HostChannelEventCancel(uint32_t u32ChannelHandle, + uint32_t u32HGCMClientId) +{ + RT_NOREF1(u32ChannelHandle); + + VBoxHostChannelEventCancel parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_EVENT_CANCEL, 0); + + return VbglR3HGCMCall(&parms.hdr, sizeof(parms)); +} + +VBGLR3DECL(int) VbglR3HostChannelQuery(const char *pszName, + uint32_t u32HGCMClientId, + uint32_t u32Code, + void *pvParm, + uint32_t cbParm, + void *pvData, + uint32_t cbData, + uint32_t *pu32SizeDataReturned) +{ + /* Make a heap copy of the name, because HGCM can not use some of other memory types. */ + size_t cbName = strlen(pszName) + 1; + char *pszCopy = (char *)RTMemAlloc(cbName); + if (pszCopy == NULL) + { + return VERR_NO_MEMORY; + } + + memcpy(pszCopy, pszName, cbName); + + VBoxHostChannelQuery parms; + VBGL_HGCM_HDR_INIT(&parms.hdr, u32HGCMClientId, VBOX_HOST_CHANNEL_FN_QUERY, 5); + VbglHGCMParmPtrSet(&parms.name, pszCopy, (uint32_t)cbName); + VbglHGCMParmUInt32Set(&parms.code, u32Code); + VbglHGCMParmPtrSet(&parms.parm, pvParm, cbParm); + VbglHGCMParmPtrSet(&parms.data, pvData, cbData); + VbglHGCMParmUInt32Set(&parms.sizeDataReturned, 0); + + int rc = VbglR3HGCMCall(&parms.hdr, sizeof(parms)); + + if (RT_SUCCESS(rc)) + { + *pu32SizeDataReturned = parms.sizeDataReturned.u.value32; + } + + RTMemFree(pszCopy); + + return rc; +} |