1 | /* $Id: VBoxGuestR0LibCrOgl.cpp 68645 2017-09-05 14:17:02Z vboxsync $ */
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2 | /** @file
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3 | * VBoxGuestLib - Ring-3 Support Library for VirtualBox guest additions, Chromium OpenGL Service.
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4 | */
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5 |
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6 | /*
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7 | * Copyright (C) 2012-2016 Oracle Corporation
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8 | *
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9 | * This file is part of VirtualBox Open Source Edition (OSE), as
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10 | * available from http://www.virtualbox.org. This file is free software;
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11 | * you can redistribute it and/or modify it under the terms of the GNU
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12 | * General Public License (GPL) as published by the Free Software
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13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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16 | *
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17 | * The contents of this file may alternatively be used under the terms
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18 | * of the Common Development and Distribution License Version 1.0
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19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
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20 | * VirtualBox OSE distribution, in which case the provisions of the
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21 | * CDDL are applicable instead of those of the GPL.
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22 | *
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23 | * You may elect to license modified versions of this file under the
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24 | * terms and conditions of either the GPL or the CDDL or both.
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25 | */
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26 |
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27 | /* Entire file is ifdef'ed with !VBGL_VBOXGUEST */
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28 | #ifdef VBGL_VBOXGUEST
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29 | # error "VBGL_VBOXGUEST should not be defined"
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30 | #endif
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31 |
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32 | /*********************************************************************************************************************************
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33 | * Header Files *
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34 | *********************************************************************************************************************************/
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35 | #include <iprt/string.h>
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36 | #include "VBoxGuestR0LibInternal.h"
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37 |
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38 |
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39 | DECLVBGL(int) VbglR0CrCtlCreate(VBGLCRCTLHANDLE *phCtl)
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40 | {
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41 | int rc;
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42 |
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43 | if (phCtl)
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44 | {
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45 | struct VBGLHGCMHANDLEDATA *pHandleData = vbglR0HGCMHandleAlloc();
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46 | if (pHandleData)
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47 | {
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48 | rc = VbglR0IdcOpen(&pHandleData->IdcHandle,
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49 | VBGL_IOC_VERSION /*uReqVersion*/,
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50 | VBGL_IOC_VERSION & UINT32_C(0xffff0000) /*uMinVersion*/,
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51 | NULL /*puSessionVersion*/, NULL /*puDriverVersion*/, NULL /*uDriverRevision*/);
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52 | if (RT_SUCCESS(rc))
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53 | {
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54 | *phCtl = pHandleData;
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55 | return VINF_SUCCESS;
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56 | }
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57 |
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58 | vbglR0HGCMHandleFree(pHandleData);
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59 | }
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60 | else
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61 | rc = VERR_NO_MEMORY;
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62 |
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63 | *phCtl = NULL;
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64 | }
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65 | else
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66 | rc = VERR_INVALID_PARAMETER;
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67 |
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68 | return rc;
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69 | }
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70 |
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71 | DECLVBGL(int) VbglR0CrCtlDestroy(VBGLCRCTLHANDLE hCtl)
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72 | {
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73 | VbglR0IdcClose(&hCtl->IdcHandle);
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74 |
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75 | vbglR0HGCMHandleFree(hCtl);
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76 |
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77 | return VINF_SUCCESS;
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78 | }
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79 |
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80 | DECLVBGL(int) VbglR0CrCtlConConnect(VBGLCRCTLHANDLE hCtl, HGCMCLIENTID *pidClient)
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81 | {
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82 | VBGLIOCHGCMCONNECT info;
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83 | int rc;
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84 |
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85 | if (!hCtl || !pidClient)
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86 | return VERR_INVALID_PARAMETER;
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87 |
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88 | RT_ZERO(info);
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89 | VBGLREQHDR_INIT(&info.Hdr, HGCM_CONNECT);
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90 | info.u.In.Loc.type = VMMDevHGCMLoc_LocalHost_Existing;
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91 | RTStrCopy(info.u.In.Loc.u.host.achName, sizeof(info.u.In.Loc.u.host.achName), "VBoxSharedCrOpenGL");
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92 | rc = VbglR0IdcCall(&hCtl->IdcHandle, VBGL_IOCTL_HGCM_CONNECT, &info.Hdr, sizeof(info));
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93 | if (RT_SUCCESS(rc))
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94 | {
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95 | Assert(info.u.Out.idClient);
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96 | *pidClient = info.u.Out.idClient;
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97 | return rc;
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98 | }
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99 |
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100 | AssertRC(rc);
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101 | *pidClient = 0;
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102 | return rc;
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103 | }
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104 |
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105 | DECLVBGL(int) VbglR0CrCtlConDisconnect(VBGLCRCTLHANDLE hCtl, HGCMCLIENTID idClient)
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106 | {
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107 | VBGLIOCHGCMDISCONNECT info;
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108 | VBGLREQHDR_INIT(&info.Hdr, HGCM_DISCONNECT);
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109 | info.u.In.idClient = idClient;
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110 | return VbglR0IdcCall(&hCtl->IdcHandle, VBGL_IOCTL_HGCM_DISCONNECT, &info.Hdr, sizeof(info));
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111 | }
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112 |
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113 | DECLVBGL(int) VbglR0CrCtlConCallRaw(VBGLCRCTLHANDLE hCtl, PVBGLIOCHGCMCALL pCallInfo, int cbCallInfo)
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114 | {
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115 | return VbglR0IdcCallRaw(&hCtl->IdcHandle, VBGL_IOCTL_HGCM_CALL(cbCallInfo), &pCallInfo->Hdr, cbCallInfo);
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116 | }
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117 |
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118 | DECLVBGL(int) VbglR0CrCtlConCall(VBGLCRCTLHANDLE hCtl, PVBGLIOCHGCMCALL pCallInfo, int cbCallInfo)
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119 | {
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120 | int rc = VbglR0IdcCallRaw(&hCtl->IdcHandle, VBGL_IOCTL_HGCM_CALL(cbCallInfo), &pCallInfo->Hdr, cbCallInfo);
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121 | if (RT_SUCCESS(rc))
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122 | rc = pCallInfo->Hdr.rc;
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123 | return rc;
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124 | }
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125 |
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126 | DECLVBGL(int) VbglR0CrCtlConCallUserDataRaw(VBGLCRCTLHANDLE hCtl, PVBGLIOCHGCMCALL pCallInfo, int cbCallInfo)
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127 | {
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128 | return VbglR0IdcCallRaw(&hCtl->IdcHandle, VBGL_IOCTL_HGCM_CALL_WITH_USER_DATA(cbCallInfo), &pCallInfo->Hdr, cbCallInfo);
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129 | }
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130 |
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