[55401] | 1 | /* $Id: HGCM.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
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[1] | 2 | /** @file
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| 3 | * HGCM (Host-Guest Communication Manager)
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| 4 | */
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| 5 |
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| 6 | /*
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[82968] | 7 | * Copyright (C) 2006-2020 Oracle Corporation
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[1] | 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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[5999] | 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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[1] | 16 | */
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| 17 |
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[67914] | 18 | #define LOG_GROUP LOG_GROUP_HGCM
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| 19 | #include "LoggingNew.h"
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[1] | 20 |
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[35374] | 21 | #include "HGCM.h"
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| 22 | #include "HGCMThread.h"
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[1] | 23 |
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| 24 | #include <VBox/err.h>
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| 25 | #include <VBox/hgcmsvc.h>
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[35346] | 26 | #include <VBox/vmm/ssm.h>
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[75495] | 27 | #include <VBox/vmm/stam.h>
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[35346] | 28 | #include <VBox/sup.h>
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[1] | 29 |
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| 30 | #include <iprt/alloc.h>
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| 31 | #include <iprt/avl.h>
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| 32 | #include <iprt/critsect.h>
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| 33 | #include <iprt/asm.h>
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| 34 | #include <iprt/ldr.h>
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[6952] | 35 | #include <iprt/param.h>
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| 36 | #include <iprt/path.h>
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[1] | 37 | #include <iprt/string.h>
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| 38 | #include <iprt/semaphore.h>
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| 39 | #include <iprt/thread.h>
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| 40 |
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[21227] | 41 | #include <VBox/VMMDev.h>
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[75497] | 42 | #include <new>
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[1] | 43 |
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| 44 | /**
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| 45 | * A service gets one thread, which synchronously delivers messages to
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| 46 | * the service. This is good for serialization.
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| 47 | *
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| 48 | * Some services may want to process messages asynchronously, and will want
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| 49 | * a next message to be delivered, while a previous message is still being
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| 50 | * processed.
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| 51 | *
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| 52 | * The dedicated service thread delivers a next message when service
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| 53 | * returns after fetching a previous one. The service will call a message
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| 54 | * completion callback when message is actually processed. So returning
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| 55 | * from the service call means only that the service is processing message.
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| 56 | *
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| 57 | * 'Message processed' condition is indicated by service, which call the
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| 58 | * callback, even if the callback is called synchronously in the dedicated
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| 59 | * thread.
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| 60 | *
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| 61 | * This message completion callback is only valid for Call requests.
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[1711] | 62 | * Connect and Disconnect are processed synchronously by the service.
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[1] | 63 | */
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| 64 |
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| 65 |
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[1681] | 66 | /* The maximum allowed size of a service name in bytes. */
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| 67 | #define VBOX_HGCM_SVC_NAME_MAX_BYTES 1024
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[1] | 68 |
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[2386] | 69 | struct _HGCMSVCEXTHANDLEDATA
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| 70 | {
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| 71 | char *pszServiceName;
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| 72 | /* The service name follows. */
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| 73 | };
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| 74 |
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[1] | 75 | /** Internal helper service object. HGCM code would use it to
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| 76 | * hold information about services and communicate with services.
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| 77 | * The HGCMService is an (in future) abstract class that implements
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| 78 | * common functionality. There will be derived classes for specific
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[1711] | 79 | * service types.
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[1] | 80 | */
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| 81 |
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| 82 | class HGCMService
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| 83 | {
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| 84 | private:
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| 85 | VBOXHGCMSVCHELPERS m_svcHelpers;
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| 86 |
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| 87 | static HGCMService *sm_pSvcListHead;
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| 88 | static HGCMService *sm_pSvcListTail;
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| 89 |
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[1711] | 90 | static int sm_cServices;
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[1] | 91 |
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[75539] | 92 | HGCMThread *m_pThread;
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| 93 | friend DECLCALLBACK(void) hgcmServiceThread(HGCMThread *pThread, void *pvUser);
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[1] | 94 |
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| 95 | uint32_t volatile m_u32RefCnt;
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| 96 |
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| 97 | HGCMService *m_pSvcNext;
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| 98 | HGCMService *m_pSvcPrev;
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| 99 |
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| 100 | char *m_pszSvcName;
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| 101 | char *m_pszSvcLibrary;
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[6985] | 102 |
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[1] | 103 | RTLDRMOD m_hLdrMod;
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| 104 | PFNVBOXHGCMSVCLOAD m_pfnLoad;
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| 105 |
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| 106 | VBOXHGCMSVCFNTABLE m_fntable;
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| 107 |
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[70599] | 108 | uint32_t m_cClients;
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| 109 | uint32_t m_cClientsAllocated;
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[1] | 110 |
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[1385] | 111 | uint32_t *m_paClientIds;
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[6985] | 112 |
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[2386] | 113 | HGCMSVCEXTHANDLE m_hExtension;
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[1385] | 114 |
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[75495] | 115 | PUVM m_pUVM;
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[75853] | 116 | PPDMIHGCMPORT m_pHgcmPort;
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[75495] | 117 |
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| 118 | /** @name Statistics
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| 119 | * @{ */
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| 120 | STAMPROFILE m_StatHandleMsg;
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| 121 | /** @} */
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| 122 |
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[51092] | 123 | int loadServiceDLL(void);
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| 124 | void unloadServiceDLL(void);
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[1] | 125 |
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[1711] | 126 | /*
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| 127 | * Main HGCM thread methods.
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| 128 | */
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[75853] | 129 | int instanceCreate(const char *pszServiceLibrary, const char *pszServiceName, PUVM pUVM, PPDMIHGCMPORT pHgcmPort);
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[51092] | 130 | void instanceDestroy(void);
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[1] | 131 |
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[1711] | 132 | int saveClientState(uint32_t u32ClientId, PSSMHANDLE pSSM);
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[75853] | 133 | int loadClientState(uint32_t u32ClientId, PSSMHANDLE pSSM, uint32_t uVersion);
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[1711] | 134 |
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[51092] | 135 | HGCMService();
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| 136 | ~HGCMService() {};
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[1] | 137 |
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[75747] | 138 | static DECLCALLBACK(int) svcHlpCallComplete(VBOXHGCMCALLHANDLE callHandle, int32_t rc);
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[51092] | 139 | static DECLCALLBACK(void) svcHlpDisconnectClient(void *pvInstance, uint32_t u32ClientId);
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[75406] | 140 | static DECLCALLBACK(bool) svcHlpIsCallRestored(VBOXHGCMCALLHANDLE callHandle);
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[75990] | 141 | static DECLCALLBACK(bool) svcHlpIsCallCancelled(VBOXHGCMCALLHANDLE callHandle);
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[75495] | 142 | static DECLCALLBACK(int) svcHlpStamRegisterV(void *pvInstance, void *pvSample, STAMTYPE enmType,
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| 143 | STAMVISIBILITY enmVisibility, STAMUNIT enmUnit, const char *pszDesc,
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| 144 | const char *pszName, va_list va);
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| 145 | static DECLCALLBACK(int) svcHlpStamDeregisterV(void *pvInstance, const char *pszPatFmt, va_list va);
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| 146 | static DECLCALLBACK(int) svcHlpInfoRegister(void *pvInstance, const char *pszName, const char *pszDesc,
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| 147 | PFNDBGFHANDLEREXT pfnHandler, void *pvUser);
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| 148 | static DECLCALLBACK(int) svcHlpInfoDeregister(void *pvInstance, const char *pszName);
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[75769] | 149 | static DECLCALLBACK(uint32_t) svcHlpGetRequestor(VBOXHGCMCALLHANDLE hCall);
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[75853] | 150 | static DECLCALLBACK(uint64_t) svcHlpGetVMMDevSessionId(void *pvInstance);
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[12423] | 151 |
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[1] | 152 | public:
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| 153 |
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[1711] | 154 | /*
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| 155 | * Main HGCM thread methods.
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| 156 | */
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[75853] | 157 | static int LoadService(const char *pszServiceLibrary, const char *pszServiceName, PUVM pUVM, PPDMIHGCMPORT pHgcmPort);
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[75574] | 158 | void UnloadService(bool fUvmIsInvalid);
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[1711] | 159 |
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[75574] | 160 | static void UnloadAll(bool fUvmIsInvalid);
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[1711] | 161 |
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[51092] | 162 | static int ResolveService(HGCMService **ppsvc, const char *pszServiceName);
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| 163 | void ReferenceService(void);
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| 164 | void ReleaseService(void);
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[1711] | 165 |
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[51092] | 166 | static void Reset(void);
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[1681] | 167 |
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[51092] | 168 | static int SaveState(PSSMHANDLE pSSM);
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[75853] | 169 | static int LoadState(PSSMHANDLE pSSM, uint32_t uVersion);
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[1] | 170 |
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[75773] | 171 | int CreateAndConnectClient(uint32_t *pu32ClientIdOut, uint32_t u32ClientIdIn, uint32_t fRequestor, bool fRestoring);
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[51092] | 172 | int DisconnectClient(uint32_t u32ClientId, bool fFromService);
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[1711] | 173 |
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[51092] | 174 | int HostCall(uint32_t u32Function, uint32_t cParms, VBOXHGCMSVCPARM *paParms);
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[75969] | 175 | static void BroadcastNotify(HGCMNOTIFYEVENT enmEvent);
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| 176 | void Notify(HGCMNOTIFYEVENT enmEvent);
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[1711] | 177 |
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[51092] | 178 | uint32_t SizeOfClient(void) { return m_fntable.cbClient; };
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[1] | 179 |
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[51092] | 180 | int RegisterExtension(HGCMSVCEXTHANDLE handle, PFNHGCMSVCEXT pfnExtension, void *pvExtension);
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| 181 | void UnregisterExtension(HGCMSVCEXTHANDLE handle);
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[2386] | 182 |
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[1711] | 183 | /*
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| 184 | * The service thread methods.
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| 185 | */
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[1385] | 186 |
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[51092] | 187 | int GuestCall(PPDMIHGCMPORT pHGCMPort, PVBOXHGCMCMD pCmd, uint32_t u32ClientId,
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[75500] | 188 | uint32_t u32Function, uint32_t cParms, VBOXHGCMSVCPARM aParms[], uint64_t tsArrival);
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[75990] | 189 | void GuestCancelled(PPDMIHGCMPORT pHGCMPort, PVBOXHGCMCMD pCmd, uint32_t idClient);
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[1] | 190 | };
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| 191 |
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| 192 |
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| 193 | class HGCMClient: public HGCMObject
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| 194 | {
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| 195 | public:
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[75853] | 196 | HGCMClient(uint32_t a_fRequestor)
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| 197 | : HGCMObject(HGCMOBJ_CLIENT)
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| 198 | , pService(NULL)
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| 199 | , pvData(NULL)
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| 200 | , fRequestor(a_fRequestor)
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| 201 | {}
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[51092] | 202 | ~HGCMClient();
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[1] | 203 |
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[51092] | 204 | int Init(HGCMService *pSvc);
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[1] | 205 |
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| 206 | /** Service that the client is connected to. */
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| 207 | HGCMService *pService;
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| 208 |
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| 209 | /** Client specific data. */
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| 210 | void *pvData;
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[75853] | 211 |
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| 212 | /** The requestor flags this client was created with.
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| 213 | * @sa VMMDevRequestHeader::fRequestor */
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| 214 | uint32_t fRequestor;
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| 215 |
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| 216 | private: /* none of this: */
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| 217 | HGCMClient();
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| 218 | HGCMClient(HGCMClient const &);
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| 219 | HGCMClient &operator=(HGCMClient const &);
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[1] | 220 | };
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| 221 |
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[51092] | 222 | HGCMClient::~HGCMClient()
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[1] | 223 | {
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[51092] | 224 | if (pService->SizeOfClient() > 0)
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[75853] | 225 | {
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[51092] | 226 | RTMemFree(pvData);
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[75853] | 227 | pvData = NULL;
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| 228 | }
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[1] | 229 | }
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| 230 |
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[75853] | 231 |
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[51092] | 232 | int HGCMClient::Init(HGCMService *pSvc)
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[1] | 233 | {
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| 234 | pService = pSvc;
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| 235 |
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[51092] | 236 | if (pService->SizeOfClient() > 0)
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[1] | 237 | {
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[51092] | 238 | pvData = RTMemAllocZ(pService->SizeOfClient());
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[1] | 239 |
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| 240 | if (!pvData)
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| 241 | {
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| 242 | return VERR_NO_MEMORY;
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | return VINF_SUCCESS;
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| 247 | }
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| 248 |
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| 249 |
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[51092] | 250 | #define HGCM_CLIENT_DATA(pService, pClient)(pClient->pvData)
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[1] | 251 |
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| 252 |
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[1711] | 253 |
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| 254 | HGCMService *HGCMService::sm_pSvcListHead = NULL;
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| 255 | HGCMService *HGCMService::sm_pSvcListTail = NULL;
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| 256 | int HGCMService::sm_cServices = 0;
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| 257 |
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[51092] | 258 | HGCMService::HGCMService()
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[1711] | 259 | :
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[75539] | 260 | m_pThread (NULL),
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[1711] | 261 | m_u32RefCnt (0),
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| 262 | m_pSvcNext (NULL),
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| 263 | m_pSvcPrev (NULL),
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| 264 | m_pszSvcName (NULL),
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| 265 | m_pszSvcLibrary (NULL),
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| 266 | m_hLdrMod (NIL_RTLDRMOD),
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| 267 | m_pfnLoad (NULL),
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| 268 | m_cClients (0),
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| 269 | m_cClientsAllocated (0),
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[2386] | 270 | m_paClientIds (NULL),
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[75495] | 271 | m_hExtension (NULL),
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[75853] | 272 | m_pUVM (NULL),
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| 273 | m_pHgcmPort (NULL)
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[1711] | 274 | {
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[47117] | 275 | RT_ZERO(m_fntable);
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[1711] | 276 | }
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| 277 |
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| 278 |
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| 279 | static bool g_fResetting = false;
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| 280 | static bool g_fSaveState = false;
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| 281 |
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| 282 |
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| 283 | /** Helper function to load a local service DLL.
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| 284 | *
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| 285 | * @return VBox code
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| 286 | */
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[48229] | 287 | int HGCMService::loadServiceDLL(void)
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[1711] | 288 | {
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[2386] | 289 | LogFlowFunc(("m_pszSvcLibrary = %s\n", m_pszSvcLibrary));
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[1711] | 290 |
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| 291 | if (m_pszSvcLibrary == NULL)
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| 292 | {
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| 293 | return VERR_INVALID_PARAMETER;
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| 294 | }
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| 295 |
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[35188] | 296 | RTERRINFOSTATIC ErrInfo;
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[48229] | 297 | RTErrInfoInitStatic(&ErrInfo);
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[1711] | 298 |
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[48229] | 299 | int rc;
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[35188] | 300 |
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[48229] | 301 | if (RTPathHasPath(m_pszSvcLibrary))
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| 302 | rc = SUPR3HardenedLdrLoadPlugIn(m_pszSvcLibrary, &m_hLdrMod, &ErrInfo.Core);
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| 303 | else
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| 304 | rc = SUPR3HardenedLdrLoadAppPriv(m_pszSvcLibrary, &m_hLdrMod, RTLDRLOAD_FLAGS_LOCAL, &ErrInfo.Core);
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| 305 |
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[13835] | 306 | if (RT_SUCCESS(rc))
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[1711] | 307 | {
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[2386] | 308 | LogFlowFunc(("successfully loaded the library.\n"));
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[1711] | 309 |
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| 310 | m_pfnLoad = NULL;
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| 311 |
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[48229] | 312 | rc = RTLdrGetSymbol(m_hLdrMod, VBOX_HGCM_SVCLOAD_NAME, (void**)&m_pfnLoad);
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[1711] | 313 |
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[21878] | 314 | if (RT_FAILURE(rc) || !m_pfnLoad)
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[1711] | 315 | {
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[51092] | 316 | Log(("HGCMService::loadServiceDLL: Error resolving the service entry point %s, rc = %d, m_pfnLoad = %p\n",
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| 317 | VBOX_HGCM_SVCLOAD_NAME, rc, m_pfnLoad));
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[1711] | 318 |
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[13835] | 319 | if (RT_SUCCESS(rc))
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[1711] | 320 | {
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| 321 | /* m_pfnLoad was NULL */
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| 322 | rc = VERR_SYMBOL_NOT_FOUND;
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| 323 | }
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| 324 | }
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| 325 |
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[13835] | 326 | if (RT_SUCCESS(rc))
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[1711] | 327 | {
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[47117] | 328 | RT_ZERO(m_fntable);
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[1711] | 329 |
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[48229] | 330 | m_fntable.cbSize = sizeof(m_fntable);
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[1711] | 331 | m_fntable.u32Version = VBOX_HGCM_SVC_VERSION;
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| 332 | m_fntable.pHelpers = &m_svcHelpers;
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| 333 |
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[48229] | 334 | rc = m_pfnLoad(&m_fntable);
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[1711] | 335 |
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[13837] | 336 | LogFlowFunc(("m_pfnLoad rc = %Rrc\n", rc));
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[1711] | 337 |
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[21878] | 338 | if (RT_SUCCESS(rc))
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[1711] | 339 | {
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| 340 | if ( m_fntable.pfnUnload == NULL
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| 341 | || m_fntable.pfnConnect == NULL
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| 342 | || m_fntable.pfnDisconnect == NULL
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| 343 | || m_fntable.pfnCall == NULL
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| 344 | )
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| 345 | {
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| 346 | Log(("HGCMService::loadServiceDLL: at least one of function pointers is NULL\n"));
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| 347 |
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| 348 | rc = VERR_INVALID_PARAMETER;
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| 349 |
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| 350 | if (m_fntable.pfnUnload)
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| 351 | {
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[48229] | 352 | m_fntable.pfnUnload(m_fntable.pvService);
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[1711] | 353 | }
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| 354 | }
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| 355 | }
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| 356 | }
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| 357 | }
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| 358 | else
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| 359 | {
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[34959] | 360 | LogRel(("HGCM: Failed to load the service library: [%s], rc = %Rrc - %s. The service will be not available.\n",
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[35188] | 361 | m_pszSvcLibrary, rc, ErrInfo.Core.pszMsg));
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[1711] | 362 | m_hLdrMod = NIL_RTLDRMOD;
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| 363 | }
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| 364 |
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[13835] | 365 | if (RT_FAILURE(rc))
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[1711] | 366 | {
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[48229] | 367 | unloadServiceDLL();
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[1711] | 368 | }
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| 369 |
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| 370 | return rc;
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| 371 | }
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| 372 |
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| 373 | /** Helper function to free a local service DLL.
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| 374 | *
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| 375 | * @return VBox code
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| 376 | */
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[48229] | 377 | void HGCMService::unloadServiceDLL(void)
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[1711] | 378 | {
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| 379 | if (m_hLdrMod)
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| 380 | {
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[48229] | 381 | RTLdrClose(m_hLdrMod);
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[1711] | 382 | }
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| 383 |
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[47117] | 384 | RT_ZERO(m_fntable);
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[1711] | 385 | m_pfnLoad = NULL;
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| 386 | m_hLdrMod = NIL_RTLDRMOD;
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| 387 | }
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| 388 |
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[1] | 389 | /*
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[1711] | 390 | * Messages processed by service threads. These threads only call the service entry points.
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[1] | 391 | */
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| 392 |
|
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[75990] | 393 | #define SVC_MSG_LOAD (0) /**< Load the service library and call VBOX_HGCM_SVCLOAD_NAME entry point. */
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| 394 | #define SVC_MSG_UNLOAD (1) /**< call pfnUnload and unload the service library. */
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| 395 | #define SVC_MSG_CONNECT (2) /**< pfnConnect */
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| 396 | #define SVC_MSG_DISCONNECT (3) /**< pfnDisconnect */
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| 397 | #define SVC_MSG_GUESTCALL (4) /**< pfnGuestCall */
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| 398 | #define SVC_MSG_HOSTCALL (5) /**< pfnHostCall */
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| 399 | #define SVC_MSG_LOADSTATE (6) /**< pfnLoadState. */
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| 400 | #define SVC_MSG_SAVESTATE (7) /**< pfnSaveState. */
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| 401 | #define SVC_MSG_QUIT (8) /**< Terminate the thread. */
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| 402 | #define SVC_MSG_REGEXT (9) /**< pfnRegisterExtension */
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| 403 | #define SVC_MSG_UNREGEXT (10) /**< pfnRegisterExtension */
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| 404 | #define SVC_MSG_NOTIFY (11) /**< pfnNotify */
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| 405 | #define SVC_MSG_GUESTCANCELLED (12) /**< pfnCancelled */
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[1] | 406 |
|
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| 407 | class HGCMMsgSvcLoad: public HGCMMsgCore
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| 408 | {
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[75495] | 409 | public:
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| 410 | HGCMMsgSvcLoad() : HGCMMsgCore(), pUVM() {}
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| 411 |
|
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| 412 | /** The user mode VM handle (for statistics and such). */
|
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| 413 | PUVM pUVM;
|
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[1] | 414 | };
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| 415 |
|
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| 416 | class HGCMMsgSvcUnload: public HGCMMsgCore
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| 417 | {
|
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| 418 | };
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| 419 |
|
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| 420 | class HGCMMsgSvcConnect: public HGCMMsgCore
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| 421 | {
|
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| 422 | public:
|
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[75773] | 423 | /** client identifier */
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[1711] | 424 | uint32_t u32ClientId;
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[75773] | 425 | /** Requestor flags. */
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| 426 | uint32_t fRequestor;
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| 427 | /** Set if restoring. */
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| 428 | bool fRestoring;
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[1] | 429 | };
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| 430 |
|
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| 431 | class HGCMMsgSvcDisconnect: public HGCMMsgCore
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| 432 | {
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| 433 | public:
|
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| 434 | /* client identifier */
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[1711] | 435 | uint32_t u32ClientId;
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[1] | 436 | };
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| 437 |
|
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| 438 | class HGCMMsgHeader: public HGCMMsgCore
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| 439 | {
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| 440 | public:
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[51092] | 441 | HGCMMsgHeader() : pCmd(NULL), pHGCMPort(NULL) {};
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[6985] | 442 |
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[1] | 443 | /* Command pointer/identifier. */
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| 444 | PVBOXHGCMCMD pCmd;
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| 445 |
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| 446 | /* Port to be informed on message completion. */
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| 447 | PPDMIHGCMPORT pHGCMPort;
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| 448 | };
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| 449 |
|
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| 450 | class HGCMMsgCall: public HGCMMsgHeader
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| 451 | {
|
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| 452 | public:
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[75541] | 453 | HGCMMsgCall() {}
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| 454 |
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| 455 | HGCMMsgCall(HGCMThread *pThread)
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| 456 | {
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| 457 | InitializeCore(SVC_MSG_GUESTCALL, pThread);
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| 458 | Initialize();
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| 459 | }
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| 460 | ~HGCMMsgCall() { Log(("~HGCMMsgCall %p\n", this)); }
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| 461 |
|
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[1] | 462 | /* client identifier */
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[1711] | 463 | uint32_t u32ClientId;
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[1] | 464 |
|
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| 465 | /* function number */
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| 466 | uint32_t u32Function;
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| 467 |
|
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| 468 | /* number of parameters */
|
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| 469 | uint32_t cParms;
|
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| 470 |
|
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| 471 | VBOXHGCMSVCPARM *paParms;
|
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[75500] | 472 |
|
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| 473 | /** The STAM_GET_TS() value when the request arrived. */
|
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| 474 | uint64_t tsArrival;
|
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[1] | 475 | };
|
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| 476 |
|
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[75990] | 477 | class HGCMMsgCancelled: public HGCMMsgHeader
|
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| 478 | {
|
---|
| 479 | public:
|
---|
| 480 | HGCMMsgCancelled() {}
|
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| 481 |
|
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| 482 | HGCMMsgCancelled(HGCMThread *pThread)
|
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| 483 | {
|
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| 484 | InitializeCore(SVC_MSG_GUESTCANCELLED, pThread);
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| 485 | Initialize();
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| 486 | }
|
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| 487 | ~HGCMMsgCancelled() { Log(("~HGCMMsgCancelled %p\n", this)); }
|
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| 488 |
|
---|
| 489 | /** The client identifier. */
|
---|
| 490 | uint32_t idClient;
|
---|
| 491 | };
|
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| 492 |
|
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[1711] | 493 | class HGCMMsgLoadSaveStateClient: public HGCMMsgCore
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[1] | 494 | {
|
---|
| 495 | public:
|
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[75853] | 496 | PSSMHANDLE pSSM;
|
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| 497 | uint32_t uVersion;
|
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[1711] | 498 | uint32_t u32ClientId;
|
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[906] | 499 | };
|
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| 500 |
|
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[1711] | 501 | class HGCMMsgHostCallSvc: public HGCMMsgCore
|
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[1] | 502 | {
|
---|
| 503 | public:
|
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| 504 | /* function number */
|
---|
| 505 | uint32_t u32Function;
|
---|
| 506 |
|
---|
| 507 | /* number of parameters */
|
---|
| 508 | uint32_t cParms;
|
---|
| 509 |
|
---|
| 510 | VBOXHGCMSVCPARM *paParms;
|
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| 511 | };
|
---|
| 512 |
|
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[2386] | 513 | class HGCMMsgSvcRegisterExtension: public HGCMMsgCore
|
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| 514 | {
|
---|
| 515 | public:
|
---|
| 516 | /* Handle of the extension to be registered. */
|
---|
| 517 | HGCMSVCEXTHANDLE handle;
|
---|
| 518 | /* The extension entry point. */
|
---|
| 519 | PFNHGCMSVCEXT pfnExtension;
|
---|
| 520 | /* The extension pointer. */
|
---|
| 521 | void *pvExtension;
|
---|
| 522 | };
|
---|
| 523 |
|
---|
| 524 | class HGCMMsgSvcUnregisterExtension: public HGCMMsgCore
|
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| 525 | {
|
---|
| 526 | public:
|
---|
| 527 | /* Handle of the registered extension. */
|
---|
| 528 | HGCMSVCEXTHANDLE handle;
|
---|
| 529 | };
|
---|
| 530 |
|
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[75969] | 531 | class HGCMMsgNotify: public HGCMMsgCore
|
---|
| 532 | {
|
---|
| 533 | public:
|
---|
| 534 | /** The event. */
|
---|
| 535 | HGCMNOTIFYEVENT enmEvent;
|
---|
| 536 | };
|
---|
| 537 |
|
---|
[51092] | 538 | static HGCMMsgCore *hgcmMessageAllocSvc(uint32_t u32MsgId)
|
---|
[1385] | 539 | {
|
---|
[1] | 540 | switch (u32MsgId)
|
---|
| 541 | {
|
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[51092] | 542 | case SVC_MSG_LOAD: return new HGCMMsgSvcLoad();
|
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| 543 | case SVC_MSG_UNLOAD: return new HGCMMsgSvcUnload();
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---|
| 544 | case SVC_MSG_CONNECT: return new HGCMMsgSvcConnect();
|
---|
| 545 | case SVC_MSG_DISCONNECT: return new HGCMMsgSvcDisconnect();
|
---|
| 546 | case SVC_MSG_HOSTCALL: return new HGCMMsgHostCallSvc();
|
---|
| 547 | case SVC_MSG_GUESTCALL: return new HGCMMsgCall();
|
---|
[6985] | 548 | case SVC_MSG_LOADSTATE:
|
---|
[51092] | 549 | case SVC_MSG_SAVESTATE: return new HGCMMsgLoadSaveStateClient();
|
---|
| 550 | case SVC_MSG_REGEXT: return new HGCMMsgSvcRegisterExtension();
|
---|
| 551 | case SVC_MSG_UNREGEXT: return new HGCMMsgSvcUnregisterExtension();
|
---|
[75969] | 552 | case SVC_MSG_NOTIFY: return new HGCMMsgNotify();
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[75990] | 553 | case SVC_MSG_GUESTCANCELLED: return new HGCMMsgCancelled();
|
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[1] | 554 | default:
|
---|
[1385] | 555 | AssertReleaseMsgFailed(("Msg id = %08X\n", u32MsgId));
|
---|
[1] | 556 | }
|
---|
| 557 |
|
---|
| 558 | return NULL;
|
---|
| 559 | }
|
---|
| 560 |
|
---|
[1711] | 561 | /*
|
---|
| 562 | * The service thread. Loads the service library and calls the service entry points.
|
---|
| 563 | */
|
---|
[75539] | 564 | DECLCALLBACK(void) hgcmServiceThread(HGCMThread *pThread, void *pvUser)
|
---|
[1] | 565 | {
|
---|
| 566 | HGCMService *pSvc = (HGCMService *)pvUser;
|
---|
| 567 | AssertRelease(pSvc != NULL);
|
---|
| 568 |
|
---|
[1711] | 569 | bool fQuit = false;
|
---|
[1] | 570 |
|
---|
[1711] | 571 | while (!fQuit)
|
---|
[1] | 572 | {
|
---|
[1711] | 573 | HGCMMsgCore *pMsgCore;
|
---|
[75539] | 574 | int rc = hgcmMsgGet(pThread, &pMsgCore);
|
---|
[1] | 575 |
|
---|
[21878] | 576 | if (RT_FAILURE(rc))
|
---|
[1] | 577 | {
|
---|
[1711] | 578 | /* The error means some serious unrecoverable problem in the hgcmMsg/hgcmThread layer. */
|
---|
[51092] | 579 | AssertMsgFailed(("%Rrc\n", rc));
|
---|
[1711] | 580 | break;
|
---|
[1] | 581 | }
|
---|
| 582 |
|
---|
[75495] | 583 | STAM_REL_PROFILE_START(&pSvc->m_StatHandleMsg, a);
|
---|
| 584 |
|
---|
[1577] | 585 | /* Cache required information to avoid unnecessary pMsgCore access. */
|
---|
[51092] | 586 | uint32_t u32MsgId = pMsgCore->MsgId();
|
---|
[1577] | 587 |
|
---|
| 588 | switch (u32MsgId)
|
---|
[1] | 589 | {
|
---|
[1711] | 590 | case SVC_MSG_LOAD:
|
---|
[1] | 591 | {
|
---|
[1711] | 592 | LogFlowFunc(("SVC_MSG_LOAD\n"));
|
---|
[51092] | 593 | rc = pSvc->loadServiceDLL();
|
---|
[1] | 594 | } break;
|
---|
| 595 |
|
---|
[1711] | 596 | case SVC_MSG_UNLOAD:
|
---|
[1] | 597 | {
|
---|
[1711] | 598 | LogFlowFunc(("SVC_MSG_UNLOAD\n"));
|
---|
[3209] | 599 | if (pSvc->m_fntable.pfnUnload)
|
---|
| 600 | {
|
---|
[51092] | 601 | pSvc->m_fntable.pfnUnload(pSvc->m_fntable.pvService);
|
---|
[3209] | 602 | }
|
---|
| 603 |
|
---|
[51092] | 604 | pSvc->unloadServiceDLL();
|
---|
[1711] | 605 | fQuit = true;
|
---|
[1] | 606 | } break;
|
---|
| 607 |
|
---|
[1711] | 608 | case SVC_MSG_CONNECT:
|
---|
[1] | 609 | {
|
---|
| 610 | HGCMMsgSvcConnect *pMsg = (HGCMMsgSvcConnect *)pMsgCore;
|
---|
| 611 |
|
---|
[1711] | 612 | LogFlowFunc(("SVC_MSG_CONNECT u32ClientId = %d\n", pMsg->u32ClientId));
|
---|
[1] | 613 |
|
---|
[51092] | 614 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1] | 615 |
|
---|
| 616 | if (pClient)
|
---|
| 617 | {
|
---|
[51092] | 618 | rc = pSvc->m_fntable.pfnConnect(pSvc->m_fntable.pvService, pMsg->u32ClientId,
|
---|
[75773] | 619 | HGCM_CLIENT_DATA(pSvc, pClient),
|
---|
| 620 | pMsg->fRequestor, pMsg->fRestoring);
|
---|
[1] | 621 |
|
---|
[51092] | 622 | hgcmObjDereference(pClient);
|
---|
[1] | 623 | }
|
---|
[1711] | 624 | else
|
---|
| 625 | {
|
---|
| 626 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
| 627 | }
|
---|
[1] | 628 | } break;
|
---|
| 629 |
|
---|
[1711] | 630 | case SVC_MSG_DISCONNECT:
|
---|
[1] | 631 | {
|
---|
| 632 | HGCMMsgSvcDisconnect *pMsg = (HGCMMsgSvcDisconnect *)pMsgCore;
|
---|
| 633 |
|
---|
[1711] | 634 | LogFlowFunc(("SVC_MSG_DISCONNECT u32ClientId = %d\n", pMsg->u32ClientId));
|
---|
[1] | 635 |
|
---|
[51092] | 636 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1] | 637 |
|
---|
| 638 | if (pClient)
|
---|
| 639 | {
|
---|
[51092] | 640 | rc = pSvc->m_fntable.pfnDisconnect(pSvc->m_fntable.pvService, pMsg->u32ClientId,
|
---|
| 641 | HGCM_CLIENT_DATA(pSvc, pClient));
|
---|
[1] | 642 |
|
---|
[51092] | 643 | hgcmObjDereference(pClient);
|
---|
[1] | 644 | }
|
---|
[1711] | 645 | else
|
---|
| 646 | {
|
---|
| 647 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
| 648 | }
|
---|
[1] | 649 | } break;
|
---|
| 650 |
|
---|
[1711] | 651 | case SVC_MSG_GUESTCALL:
|
---|
[1] | 652 | {
|
---|
| 653 | HGCMMsgCall *pMsg = (HGCMMsgCall *)pMsgCore;
|
---|
| 654 |
|
---|
[1711] | 655 | LogFlowFunc(("SVC_MSG_GUESTCALL u32ClientId = %d, u32Function = %d, cParms = %d, paParms = %p\n",
|
---|
| 656 | pMsg->u32ClientId, pMsg->u32Function, pMsg->cParms, pMsg->paParms));
|
---|
[1] | 657 |
|
---|
[51092] | 658 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1] | 659 |
|
---|
| 660 | if (pClient)
|
---|
| 661 | {
|
---|
[51092] | 662 | pSvc->m_fntable.pfnCall(pSvc->m_fntable.pvService, (VBOXHGCMCALLHANDLE)pMsg, pMsg->u32ClientId,
|
---|
| 663 | HGCM_CLIENT_DATA(pSvc, pClient), pMsg->u32Function,
|
---|
[75500] | 664 | pMsg->cParms, pMsg->paParms, pMsg->tsArrival);
|
---|
[1] | 665 |
|
---|
[51092] | 666 | hgcmObjDereference(pClient);
|
---|
[1] | 667 | }
|
---|
| 668 | else
|
---|
| 669 | {
|
---|
[1080] | 670 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
[1] | 671 | }
|
---|
| 672 | } break;
|
---|
| 673 |
|
---|
[75990] | 674 | case SVC_MSG_GUESTCANCELLED:
|
---|
| 675 | {
|
---|
| 676 | HGCMMsgCancelled *pMsg = (HGCMMsgCancelled *)pMsgCore;
|
---|
| 677 |
|
---|
| 678 | LogFlowFunc(("SVC_MSG_GUESTCANCELLED idClient = %d\n", pMsg->idClient));
|
---|
| 679 |
|
---|
| 680 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->idClient, HGCMOBJ_CLIENT);
|
---|
| 681 |
|
---|
| 682 | if (pClient)
|
---|
| 683 | {
|
---|
| 684 | pSvc->m_fntable.pfnCancelled(pSvc->m_fntable.pvService, pMsg->idClient, HGCM_CLIENT_DATA(pSvc, pClient));
|
---|
| 685 |
|
---|
| 686 | hgcmObjDereference(pClient);
|
---|
| 687 | }
|
---|
| 688 | else
|
---|
| 689 | {
|
---|
| 690 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
| 691 | }
|
---|
| 692 | } break;
|
---|
| 693 |
|
---|
[1711] | 694 | case SVC_MSG_HOSTCALL:
|
---|
[1] | 695 | {
|
---|
[1711] | 696 | HGCMMsgHostCallSvc *pMsg = (HGCMMsgHostCallSvc *)pMsgCore;
|
---|
[1] | 697 |
|
---|
[51092] | 698 | LogFlowFunc(("SVC_MSG_HOSTCALL u32Function = %d, cParms = %d, paParms = %p\n",
|
---|
| 699 | pMsg->u32Function, pMsg->cParms, pMsg->paParms));
|
---|
[1] | 700 |
|
---|
[51092] | 701 | rc = pSvc->m_fntable.pfnHostCall(pSvc->m_fntable.pvService, pMsg->u32Function, pMsg->cParms, pMsg->paParms);
|
---|
[1] | 702 | } break;
|
---|
| 703 |
|
---|
[1711] | 704 | case SVC_MSG_LOADSTATE:
|
---|
[1080] | 705 | {
|
---|
[1711] | 706 | HGCMMsgLoadSaveStateClient *pMsg = (HGCMMsgLoadSaveStateClient *)pMsgCore;
|
---|
[1080] | 707 |
|
---|
[1711] | 708 | LogFlowFunc(("SVC_MSG_LOADSTATE\n"));
|
---|
[1080] | 709 |
|
---|
[51092] | 710 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1681] | 711 |
|
---|
| 712 | if (pClient)
|
---|
[1080] | 713 | {
|
---|
[75853] | 714 | /* fRequestor: Restored by the message sender already. */
|
---|
| 715 | bool fHaveClientState = pSvc->m_fntable.pfnLoadState != NULL;
|
---|
| 716 | if (pMsg->uVersion > HGCM_SAVED_STATE_VERSION_V2)
|
---|
| 717 | rc = SSMR3GetBool(pMsg->pSSM, &fHaveClientState);
|
---|
| 718 | else
|
---|
| 719 | rc = VINF_SUCCESS;
|
---|
| 720 | if (RT_SUCCESS(rc) )
|
---|
[1681] | 721 | {
|
---|
[75853] | 722 | if (pSvc->m_fntable.pfnLoadState)
|
---|
| 723 | rc = pSvc->m_fntable.pfnLoadState(pSvc->m_fntable.pvService, pMsg->u32ClientId,
|
---|
| 724 | HGCM_CLIENT_DATA(pSvc, pClient), pMsg->pSSM,
|
---|
| 725 | fHaveClientState ? pMsg->uVersion : 0);
|
---|
| 726 | else
|
---|
| 727 | AssertLogRelStmt(!fHaveClientState, rc = VERR_INTERNAL_ERROR_5);
|
---|
[1681] | 728 | }
|
---|
[51092] | 729 | hgcmObjDereference(pClient);
|
---|
[1080] | 730 | }
|
---|
[1711] | 731 | else
|
---|
| 732 | {
|
---|
| 733 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
| 734 | }
|
---|
| 735 | } break;
|
---|
[1080] | 736 |
|
---|
[1711] | 737 | case SVC_MSG_SAVESTATE:
|
---|
[1080] | 738 | {
|
---|
[1711] | 739 | HGCMMsgLoadSaveStateClient *pMsg = (HGCMMsgLoadSaveStateClient *)pMsgCore;
|
---|
[1080] | 740 |
|
---|
[1711] | 741 | LogFlowFunc(("SVC_MSG_SAVESTATE\n"));
|
---|
[1080] | 742 |
|
---|
[51092] | 743 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1711] | 744 |
|
---|
[1080] | 745 | rc = VINF_SUCCESS;
|
---|
[1681] | 746 |
|
---|
| 747 | if (pClient)
|
---|
[1080] | 748 | {
|
---|
[75853] | 749 | SSMR3PutU32(pMsg->pSSM, pClient->fRequestor); /* Quicker to save this here than in the message sender. */
|
---|
| 750 | rc = SSMR3PutBool(pMsg->pSSM, pSvc->m_fntable.pfnSaveState != NULL);
|
---|
| 751 | if (RT_SUCCESS(rc) && pSvc->m_fntable.pfnSaveState)
|
---|
[1681] | 752 | {
|
---|
| 753 | g_fSaveState = true;
|
---|
[51092] | 754 | rc = pSvc->m_fntable.pfnSaveState(pSvc->m_fntable.pvService, pMsg->u32ClientId,
|
---|
| 755 | HGCM_CLIENT_DATA(pSvc, pClient), pMsg->pSSM);
|
---|
[1681] | 756 | g_fSaveState = false;
|
---|
| 757 | }
|
---|
| 758 |
|
---|
[51092] | 759 | hgcmObjDereference(pClient);
|
---|
[1080] | 760 | }
|
---|
[1711] | 761 | else
|
---|
| 762 | {
|
---|
| 763 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
| 764 | }
|
---|
| 765 | } break;
|
---|
[6985] | 766 |
|
---|
[2386] | 767 | case SVC_MSG_REGEXT:
|
---|
| 768 | {
|
---|
| 769 | HGCMMsgSvcRegisterExtension *pMsg = (HGCMMsgSvcRegisterExtension *)pMsgCore;
|
---|
[1080] | 770 |
|
---|
[2386] | 771 | LogFlowFunc(("SVC_MSG_REGEXT handle = %p, pfn = %p\n", pMsg->handle, pMsg->pfnExtension));
|
---|
[6985] | 772 |
|
---|
[2386] | 773 | if (pSvc->m_hExtension)
|
---|
| 774 | {
|
---|
| 775 | rc = VERR_NOT_SUPPORTED;
|
---|
| 776 | }
|
---|
| 777 | else
|
---|
| 778 | {
|
---|
| 779 | if (pSvc->m_fntable.pfnRegisterExtension)
|
---|
| 780 | {
|
---|
[51092] | 781 | rc = pSvc->m_fntable.pfnRegisterExtension(pSvc->m_fntable.pvService, pMsg->pfnExtension,
|
---|
| 782 | pMsg->pvExtension);
|
---|
[2386] | 783 | }
|
---|
| 784 | else
|
---|
| 785 | {
|
---|
| 786 | rc = VERR_NOT_SUPPORTED;
|
---|
| 787 | }
|
---|
[6985] | 788 |
|
---|
[21878] | 789 | if (RT_SUCCESS(rc))
|
---|
[2386] | 790 | {
|
---|
| 791 | pSvc->m_hExtension = pMsg->handle;
|
---|
| 792 | }
|
---|
| 793 | }
|
---|
| 794 | } break;
|
---|
| 795 |
|
---|
| 796 | case SVC_MSG_UNREGEXT:
|
---|
| 797 | {
|
---|
| 798 | HGCMMsgSvcUnregisterExtension *pMsg = (HGCMMsgSvcUnregisterExtension *)pMsgCore;
|
---|
| 799 |
|
---|
| 800 | LogFlowFunc(("SVC_MSG_UNREGEXT handle = %p\n", pMsg->handle));
|
---|
[6985] | 801 |
|
---|
[2386] | 802 | if (pSvc->m_hExtension != pMsg->handle)
|
---|
| 803 | {
|
---|
| 804 | rc = VERR_NOT_SUPPORTED;
|
---|
| 805 | }
|
---|
| 806 | else
|
---|
| 807 | {
|
---|
| 808 | if (pSvc->m_fntable.pfnRegisterExtension)
|
---|
| 809 | {
|
---|
[51092] | 810 | rc = pSvc->m_fntable.pfnRegisterExtension(pSvc->m_fntable.pvService, NULL, NULL);
|
---|
[2386] | 811 | }
|
---|
| 812 | else
|
---|
| 813 | {
|
---|
| 814 | rc = VERR_NOT_SUPPORTED;
|
---|
| 815 | }
|
---|
[6985] | 816 |
|
---|
[2386] | 817 | pSvc->m_hExtension = NULL;
|
---|
| 818 | }
|
---|
| 819 | } break;
|
---|
| 820 |
|
---|
[75969] | 821 | case SVC_MSG_NOTIFY:
|
---|
| 822 | {
|
---|
| 823 | HGCMMsgNotify *pMsg = (HGCMMsgNotify *)pMsgCore;
|
---|
| 824 |
|
---|
| 825 | LogFlowFunc(("SVC_MSG_NOTIFY enmEvent = %d\n", pMsg->enmEvent));
|
---|
| 826 |
|
---|
| 827 | pSvc->m_fntable.pfnNotify(pSvc->m_fntable.pvService, pMsg->enmEvent);
|
---|
| 828 | } break;
|
---|
| 829 |
|
---|
[1] | 830 | default:
|
---|
| 831 | {
|
---|
[1711] | 832 | AssertMsgFailed(("hgcmServiceThread::Unsupported message number %08X\n", u32MsgId));
|
---|
[1] | 833 | rc = VERR_NOT_SUPPORTED;
|
---|
| 834 | } break;
|
---|
| 835 | }
|
---|
| 836 |
|
---|
[1711] | 837 | if (u32MsgId != SVC_MSG_GUESTCALL)
|
---|
[1] | 838 | {
|
---|
[1711] | 839 | /* For SVC_MSG_GUESTCALL the service calls the completion helper.
|
---|
| 840 | * Other messages have to be completed here.
|
---|
[1] | 841 | */
|
---|
| 842 | hgcmMsgComplete (pMsgCore, rc);
|
---|
| 843 | }
|
---|
[75495] | 844 | STAM_REL_PROFILE_STOP(&pSvc->m_StatHandleMsg, a);
|
---|
[1] | 845 | }
|
---|
[1711] | 846 | }
|
---|
[1] | 847 |
|
---|
[75406] | 848 | /**
|
---|
| 849 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnCallComplete}
|
---|
| 850 | */
|
---|
[75747] | 851 | /* static */ DECLCALLBACK(int) HGCMService::svcHlpCallComplete(VBOXHGCMCALLHANDLE callHandle, int32_t rc)
|
---|
[1711] | 852 | {
|
---|
| 853 | HGCMMsgCore *pMsgCore = (HGCMMsgCore *)callHandle;
|
---|
| 854 |
|
---|
[75747] | 855 | /* Only call the completion for these messages. The helper
|
---|
| 856 | * is called by the service, and the service does not get
|
---|
| 857 | * any other messages.
|
---|
| 858 | */
|
---|
| 859 | AssertMsgReturn(pMsgCore->MsgId() == SVC_MSG_GUESTCALL, ("%d\n", pMsgCore->MsgId()), VERR_WRONG_TYPE);
|
---|
| 860 | return hgcmMsgComplete(pMsgCore, rc);
|
---|
[1] | 861 | }
|
---|
| 862 |
|
---|
[75406] | 863 | /**
|
---|
| 864 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnDisconnectClient}
|
---|
| 865 | */
|
---|
[51092] | 866 | /* static */ DECLCALLBACK(void) HGCMService::svcHlpDisconnectClient(void *pvInstance, uint32_t u32ClientId)
|
---|
[6981] | 867 | {
|
---|
| 868 | HGCMService *pService = static_cast <HGCMService *> (pvInstance);
|
---|
[12423] | 869 |
|
---|
[6981] | 870 | if (pService)
|
---|
| 871 | {
|
---|
[51092] | 872 | pService->DisconnectClient(u32ClientId, true);
|
---|
[6981] | 873 | }
|
---|
| 874 | }
|
---|
| 875 |
|
---|
[75406] | 876 | /**
|
---|
| 877 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnIsCallRestored}
|
---|
| 878 | */
|
---|
| 879 | /* static */ DECLCALLBACK(bool) HGCMService::svcHlpIsCallRestored(VBOXHGCMCALLHANDLE callHandle)
|
---|
| 880 | {
|
---|
[75990] | 881 | HGCMMsgHeader *pMsgHdr = (HGCMMsgHeader *)callHandle;
|
---|
[75406] | 882 | AssertPtrReturn(pMsgHdr, false);
|
---|
| 883 |
|
---|
| 884 | PVBOXHGCMCMD pCmd = pMsgHdr->pCmd;
|
---|
| 885 | AssertPtrReturn(pCmd, false);
|
---|
| 886 |
|
---|
| 887 | PPDMIHGCMPORT pHgcmPort = pMsgHdr->pHGCMPort;
|
---|
| 888 | AssertPtrReturn(pHgcmPort, false);
|
---|
| 889 |
|
---|
| 890 | return pHgcmPort->pfnIsCmdRestored(pHgcmPort, pCmd);
|
---|
| 891 | }
|
---|
| 892 |
|
---|
[75495] | 893 | /**
|
---|
[75990] | 894 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnIsCallCancelled}
|
---|
| 895 | */
|
---|
| 896 | /* static */ DECLCALLBACK(bool) HGCMService::svcHlpIsCallCancelled(VBOXHGCMCALLHANDLE callHandle)
|
---|
| 897 | {
|
---|
| 898 | HGCMMsgHeader *pMsgHdr = (HGCMMsgHeader *)callHandle;
|
---|
| 899 | AssertPtrReturn(pMsgHdr, false);
|
---|
| 900 |
|
---|
| 901 | PVBOXHGCMCMD pCmd = pMsgHdr->pCmd;
|
---|
| 902 | AssertPtrReturn(pCmd, false);
|
---|
| 903 |
|
---|
| 904 | PPDMIHGCMPORT pHgcmPort = pMsgHdr->pHGCMPort;
|
---|
| 905 | AssertPtrReturn(pHgcmPort, false);
|
---|
| 906 |
|
---|
| 907 | return pHgcmPort->pfnIsCmdCancelled(pHgcmPort, pCmd);
|
---|
| 908 | }
|
---|
| 909 |
|
---|
| 910 | /**
|
---|
[75495] | 911 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnStamRegisterV}
|
---|
| 912 | */
|
---|
| 913 | /* static */ DECLCALLBACK(int)
|
---|
| 914 | HGCMService::svcHlpStamRegisterV(void *pvInstance, void *pvSample, STAMTYPE enmType, STAMVISIBILITY enmVisibility,
|
---|
| 915 | STAMUNIT enmUnit, const char *pszDesc, const char *pszName, va_list va)
|
---|
| 916 | {
|
---|
| 917 | HGCMService *pService = static_cast <HGCMService *>(pvInstance);
|
---|
| 918 | AssertPtrReturn(pService, VERR_INVALID_PARAMETER);
|
---|
| 919 |
|
---|
| 920 | return STAMR3RegisterVU(pService->m_pUVM, pvSample, enmType, enmVisibility, enmUnit, pszDesc, pszName, va);
|
---|
| 921 | }
|
---|
| 922 |
|
---|
| 923 | /**
|
---|
| 924 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnStamDeregisterV}
|
---|
| 925 | */
|
---|
| 926 | /* static */ DECLCALLBACK(int) HGCMService::svcHlpStamDeregisterV(void *pvInstance, const char *pszPatFmt, va_list va)
|
---|
| 927 | {
|
---|
| 928 | HGCMService *pService = static_cast <HGCMService *>(pvInstance);
|
---|
| 929 | AssertPtrReturn(pService, VERR_INVALID_PARAMETER);
|
---|
| 930 |
|
---|
[75574] | 931 | if (pService->m_pUVM)
|
---|
| 932 | return STAMR3DeregisterV(pService->m_pUVM, pszPatFmt, va);
|
---|
| 933 | return VINF_SUCCESS;
|
---|
[75495] | 934 | }
|
---|
| 935 |
|
---|
| 936 | /**
|
---|
| 937 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnInfoRegister}
|
---|
| 938 | */
|
---|
| 939 | /* static */ DECLCALLBACK(int) HGCMService::svcHlpInfoRegister(void *pvInstance, const char *pszName, const char *pszDesc,
|
---|
| 940 | PFNDBGFHANDLEREXT pfnHandler, void *pvUser)
|
---|
| 941 | {
|
---|
| 942 | HGCMService *pService = static_cast <HGCMService *>(pvInstance);
|
---|
| 943 | AssertPtrReturn(pService, VERR_INVALID_PARAMETER);
|
---|
| 944 |
|
---|
| 945 | return DBGFR3InfoRegisterExternal(pService->m_pUVM, pszName, pszDesc, pfnHandler, pvUser);
|
---|
| 946 | }
|
---|
| 947 |
|
---|
| 948 | /**
|
---|
| 949 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnInfoDeregister}
|
---|
| 950 | */
|
---|
| 951 | /* static */ DECLCALLBACK(int) HGCMService::svcHlpInfoDeregister(void *pvInstance, const char *pszName)
|
---|
| 952 | {
|
---|
| 953 | HGCMService *pService = static_cast <HGCMService *>(pvInstance);
|
---|
| 954 | AssertPtrReturn(pService, VERR_INVALID_PARAMETER);
|
---|
[75574] | 955 | if (pService->m_pUVM)
|
---|
| 956 | return DBGFR3InfoDeregisterExternal(pService->m_pUVM, pszName);
|
---|
| 957 | return VINF_SUCCESS;
|
---|
[75495] | 958 | }
|
---|
| 959 |
|
---|
[75769] | 960 | /**
|
---|
| 961 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnGetRequestor}
|
---|
| 962 | */
|
---|
| 963 | /* static */ DECLCALLBACK(uint32_t) HGCMService::svcHlpGetRequestor(VBOXHGCMCALLHANDLE hCall)
|
---|
| 964 | {
|
---|
| 965 | HGCMMsgHeader *pMsgHdr = (HGCMMsgHeader *)(hCall);
|
---|
[75771] | 966 | AssertPtrReturn(pMsgHdr, VMMDEV_REQUESTOR_LOWEST);
|
---|
[75769] | 967 |
|
---|
| 968 | PVBOXHGCMCMD pCmd = pMsgHdr->pCmd;
|
---|
[75771] | 969 | AssertPtrReturn(pCmd, VMMDEV_REQUESTOR_LOWEST);
|
---|
[75769] | 970 |
|
---|
| 971 | PPDMIHGCMPORT pHgcmPort = pMsgHdr->pHGCMPort;
|
---|
[75771] | 972 | AssertPtrReturn(pHgcmPort, VMMDEV_REQUESTOR_LOWEST);
|
---|
[75769] | 973 |
|
---|
| 974 | return pHgcmPort->pfnGetRequestor(pHgcmPort, pCmd);
|
---|
| 975 | }
|
---|
| 976 |
|
---|
[75853] | 977 | /**
|
---|
| 978 | * @interface_method_impl{VBOXHGCMSVCHELPERS,pfnGetVMMDevSessionId}
|
---|
| 979 | */
|
---|
| 980 | /* static */ DECLCALLBACK(uint64_t) HGCMService::svcHlpGetVMMDevSessionId(void *pvInstance)
|
---|
| 981 | {
|
---|
| 982 | HGCMService *pService = static_cast <HGCMService *>(pvInstance);
|
---|
| 983 | AssertPtrReturn(pService, UINT64_MAX);
|
---|
[75769] | 984 |
|
---|
[75853] | 985 | PPDMIHGCMPORT pHgcmPort = pService->m_pHgcmPort;
|
---|
| 986 | AssertPtrReturn(pHgcmPort, UINT64_MAX);
|
---|
| 987 |
|
---|
| 988 | return pHgcmPort->pfnGetVMMDevSessionId(pHgcmPort);
|
---|
| 989 | }
|
---|
| 990 |
|
---|
| 991 |
|
---|
[75740] | 992 | static DECLCALLBACK(int) hgcmMsgCompletionCallback(int32_t result, HGCMMsgCore *pMsgCore)
|
---|
[1] | 993 | {
|
---|
[1711] | 994 | /* Call the VMMDev port interface to issue IRQ notification. */
|
---|
| 995 | HGCMMsgHeader *pMsgHdr = (HGCMMsgHeader *)pMsgCore;
|
---|
[1] | 996 |
|
---|
[1711] | 997 | LogFlow(("MAIN::hgcmMsgCompletionCallback: message %p\n", pMsgCore));
|
---|
[1] | 998 |
|
---|
[75740] | 999 | if (pMsgHdr->pHGCMPort)
|
---|
[1711] | 1000 | {
|
---|
[75740] | 1001 | if (!g_fResetting)
|
---|
| 1002 | return pMsgHdr->pHGCMPort->pfnCompleted(pMsgHdr->pHGCMPort,
|
---|
| 1003 | g_fSaveState ? VINF_HGCM_SAVE_STATE : result, pMsgHdr->pCmd);
|
---|
| 1004 | return VERR_ALREADY_RESET; /* best I could find. */
|
---|
[1711] | 1005 | }
|
---|
[75740] | 1006 | return VERR_NOT_AVAILABLE;
|
---|
[1711] | 1007 | }
|
---|
[1] | 1008 |
|
---|
[1711] | 1009 | /*
|
---|
| 1010 | * The main HGCM methods of the service.
|
---|
| 1011 | */
|
---|
[1] | 1012 |
|
---|
[75853] | 1013 | int HGCMService::instanceCreate(const char *pszServiceLibrary, const char *pszServiceName, PUVM pUVM, PPDMIHGCMPORT pHgcmPort)
|
---|
[1711] | 1014 | {
|
---|
| 1015 | LogFlowFunc(("name %s, lib %s\n", pszServiceName, pszServiceLibrary));
|
---|
| 1016 | /* The maximum length of the thread name, allowed by the RT is 15. */
|
---|
[39336] | 1017 | char szThreadName[16];
|
---|
[51092] | 1018 | if (!strncmp(pszServiceName, RT_STR_TUPLE("VBoxShared")))
|
---|
| 1019 | RTStrPrintf(szThreadName, sizeof(szThreadName), "Sh%s", pszServiceName + 10);
|
---|
| 1020 | else if (!strncmp(pszServiceName, RT_STR_TUPLE("VBox")))
|
---|
| 1021 | RTStrCopy(szThreadName, sizeof(szThreadName), pszServiceName + 4);
|
---|
[39336] | 1022 | else
|
---|
[51092] | 1023 | RTStrCopy(szThreadName, sizeof(szThreadName), pszServiceName);
|
---|
[1711] | 1024 |
|
---|
[75539] | 1025 | int rc = hgcmThreadCreate(&m_pThread, szThreadName, hgcmServiceThread, this, pszServiceName, pUVM);
|
---|
[1711] | 1026 |
|
---|
[13835] | 1027 | if (RT_SUCCESS(rc))
|
---|
[1] | 1028 | {
|
---|
[51092] | 1029 | m_pszSvcName = RTStrDup(pszServiceName);
|
---|
| 1030 | m_pszSvcLibrary = RTStrDup(pszServiceLibrary);
|
---|
[1] | 1031 |
|
---|
| 1032 | if (!m_pszSvcName || !m_pszSvcLibrary)
|
---|
| 1033 | {
|
---|
[51092] | 1034 | RTStrFree(m_pszSvcLibrary);
|
---|
[1] | 1035 | m_pszSvcLibrary = NULL;
|
---|
[6985] | 1036 |
|
---|
[51092] | 1037 | RTStrFree(m_pszSvcName);
|
---|
[1] | 1038 | m_pszSvcName = NULL;
|
---|
[6985] | 1039 |
|
---|
[1] | 1040 | rc = VERR_NO_MEMORY;
|
---|
| 1041 | }
|
---|
| 1042 | else
|
---|
| 1043 | {
|
---|
[75853] | 1044 | m_pUVM = pUVM;
|
---|
| 1045 | m_pHgcmPort = pHgcmPort;
|
---|
| 1046 |
|
---|
[75495] | 1047 | /* Register statistics: */
|
---|
| 1048 | STAMR3RegisterFU(pUVM, &m_StatHandleMsg, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES,
|
---|
| 1049 | "Message handling", "/HGCM/%s/Msg", pszServiceName);
|
---|
| 1050 |
|
---|
[1711] | 1051 | /* Initialize service helpers table. */
|
---|
[75853] | 1052 | m_svcHelpers.pfnCallComplete = svcHlpCallComplete;
|
---|
| 1053 | m_svcHelpers.pvInstance = this;
|
---|
| 1054 | m_svcHelpers.pfnDisconnectClient = svcHlpDisconnectClient;
|
---|
| 1055 | m_svcHelpers.pfnIsCallRestored = svcHlpIsCallRestored;
|
---|
[75990] | 1056 | m_svcHelpers.pfnIsCallCancelled = svcHlpIsCallCancelled;
|
---|
[75853] | 1057 | m_svcHelpers.pfnStamRegisterV = svcHlpStamRegisterV;
|
---|
| 1058 | m_svcHelpers.pfnStamDeregisterV = svcHlpStamDeregisterV;
|
---|
| 1059 | m_svcHelpers.pfnInfoRegister = svcHlpInfoRegister;
|
---|
| 1060 | m_svcHelpers.pfnInfoDeregister = svcHlpInfoDeregister;
|
---|
| 1061 | m_svcHelpers.pfnGetRequestor = svcHlpGetRequestor;
|
---|
| 1062 | m_svcHelpers.pfnGetVMMDevSessionId = svcHlpGetVMMDevSessionId;
|
---|
[6985] | 1063 |
|
---|
[1] | 1064 | /* Execute the load request on the service thread. */
|
---|
[75541] | 1065 | HGCMMsgCore *pCoreMsg;
|
---|
| 1066 | rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_LOAD, hgcmMessageAllocSvc);
|
---|
[1] | 1067 |
|
---|
[13835] | 1068 | if (RT_SUCCESS(rc))
|
---|
[1] | 1069 | {
|
---|
[75541] | 1070 | HGCMMsgSvcLoad *pMsg = (HGCMMsgSvcLoad *)pCoreMsg;
|
---|
| 1071 |
|
---|
[75495] | 1072 | pMsg->pUVM = pUVM;
|
---|
| 1073 |
|
---|
[75541] | 1074 | rc = hgcmMsgSend(pMsg);
|
---|
[1] | 1075 | }
|
---|
| 1076 | }
|
---|
| 1077 | }
|
---|
| 1078 |
|
---|
[13835] | 1079 | if (RT_FAILURE(rc))
|
---|
[1] | 1080 | {
|
---|
[51092] | 1081 | instanceDestroy();
|
---|
[1] | 1082 | }
|
---|
| 1083 |
|
---|
[13837] | 1084 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 1085 | return rc;
|
---|
| 1086 | }
|
---|
| 1087 |
|
---|
[51092] | 1088 | void HGCMService::instanceDestroy(void)
|
---|
[1] | 1089 | {
|
---|
[1711] | 1090 | LogFlowFunc(("%s\n", m_pszSvcName));
|
---|
| 1091 |
|
---|
[75541] | 1092 | HGCMMsgCore *pMsg;
|
---|
| 1093 | int rc = hgcmMsgAlloc(m_pThread, &pMsg, SVC_MSG_UNLOAD, hgcmMessageAllocSvc);
|
---|
[1] | 1094 |
|
---|
[13835] | 1095 | if (RT_SUCCESS(rc))
|
---|
[1] | 1096 | {
|
---|
[75541] | 1097 | rc = hgcmMsgSend(pMsg);
|
---|
[1788] | 1098 |
|
---|
[21878] | 1099 | if (RT_SUCCESS(rc))
|
---|
[75539] | 1100 | hgcmThreadWait(m_pThread);
|
---|
[1] | 1101 | }
|
---|
| 1102 |
|
---|
[75574] | 1103 | if (m_pszSvcName && m_pUVM)
|
---|
[75495] | 1104 | STAMR3DeregisterF(m_pUVM, "/HGCM/%s/*", m_pszSvcName);
|
---|
| 1105 | m_pUVM = NULL;
|
---|
[75853] | 1106 | m_pHgcmPort = NULL;
|
---|
[75495] | 1107 |
|
---|
[51092] | 1108 | RTStrFree(m_pszSvcLibrary);
|
---|
[1] | 1109 | m_pszSvcLibrary = NULL;
|
---|
[1711] | 1110 |
|
---|
[51092] | 1111 | RTStrFree(m_pszSvcName);
|
---|
[1] | 1112 | m_pszSvcName = NULL;
|
---|
[78910] | 1113 |
|
---|
| 1114 | if (m_paClientIds)
|
---|
| 1115 | {
|
---|
| 1116 | RTMemFree(m_paClientIds);
|
---|
| 1117 | m_paClientIds = NULL;
|
---|
| 1118 | }
|
---|
[1] | 1119 | }
|
---|
| 1120 |
|
---|
[1711] | 1121 | int HGCMService::saveClientState(uint32_t u32ClientId, PSSMHANDLE pSSM)
|
---|
[1] | 1122 | {
|
---|
[1711] | 1123 | LogFlowFunc(("%s\n", m_pszSvcName));
|
---|
| 1124 |
|
---|
[75541] | 1125 | HGCMMsgCore *pCoreMsg;
|
---|
| 1126 | int rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_SAVESTATE, hgcmMessageAllocSvc);
|
---|
[1711] | 1127 |
|
---|
[13835] | 1128 | if (RT_SUCCESS(rc))
|
---|
[1] | 1129 | {
|
---|
[75541] | 1130 | HGCMMsgLoadSaveStateClient *pMsg = (HGCMMsgLoadSaveStateClient *)pCoreMsg;
|
---|
[1] | 1131 |
|
---|
[1711] | 1132 | pMsg->u32ClientId = u32ClientId;
|
---|
| 1133 | pMsg->pSSM = pSSM;
|
---|
| 1134 |
|
---|
[75541] | 1135 | rc = hgcmMsgSend(pMsg);
|
---|
[1] | 1136 | }
|
---|
| 1137 |
|
---|
[13837] | 1138 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1711] | 1139 | return rc;
|
---|
[1] | 1140 | }
|
---|
| 1141 |
|
---|
[75853] | 1142 | int HGCMService::loadClientState(uint32_t u32ClientId, PSSMHANDLE pSSM, uint32_t uVersion)
|
---|
[1] | 1143 | {
|
---|
[1711] | 1144 | LogFlowFunc(("%s\n", m_pszSvcName));
|
---|
[1] | 1145 |
|
---|
[75541] | 1146 | HGCMMsgCore *pCoreMsg;
|
---|
| 1147 | int rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_LOADSTATE, hgcmMessageAllocSvc);
|
---|
[1] | 1148 |
|
---|
[13835] | 1149 | if (RT_SUCCESS(rc))
|
---|
[1] | 1150 | {
|
---|
[75541] | 1151 | HGCMMsgLoadSaveStateClient *pMsg = (HGCMMsgLoadSaveStateClient *)pCoreMsg;
|
---|
[1] | 1152 |
|
---|
[75853] | 1153 | pMsg->pSSM = pSSM;
|
---|
| 1154 | pMsg->uVersion = uVersion;
|
---|
[1711] | 1155 | pMsg->u32ClientId = u32ClientId;
|
---|
[1] | 1156 |
|
---|
[75541] | 1157 | rc = hgcmMsgSend(pMsg);
|
---|
[1] | 1158 | }
|
---|
| 1159 |
|
---|
[13837] | 1160 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1711] | 1161 | return rc;
|
---|
[1] | 1162 | }
|
---|
| 1163 |
|
---|
| 1164 |
|
---|
[1711] | 1165 | /** The method creates a service and references it.
|
---|
| 1166 | *
|
---|
[75853] | 1167 | * @param pszServiceLibrary The library to be loaded.
|
---|
| 1168 | * @param pszServiceName The name of the service.
|
---|
| 1169 | * @param pUVM The user mode VM handle (for statistics and such).
|
---|
| 1170 | * @param pHgcmPort The VMMDev HGCM port interface.
|
---|
| 1171 | *
|
---|
| 1172 | * @return VBox rc.
|
---|
| 1173 | * @thread main HGCM
|
---|
[1711] | 1174 | */
|
---|
[75853] | 1175 | /* static */ int HGCMService::LoadService(const char *pszServiceLibrary, const char *pszServiceName,
|
---|
| 1176 | PUVM pUVM, PPDMIHGCMPORT pHgcmPort)
|
---|
[1] | 1177 | {
|
---|
[75495] | 1178 | LogFlowFunc(("lib %s, name = %s, pUVM = %p\n", pszServiceLibrary, pszServiceName, pUVM));
|
---|
[1] | 1179 |
|
---|
[1711] | 1180 | /* Look at already loaded services to avoid double loading. */
|
---|
[1] | 1181 |
|
---|
[1711] | 1182 | HGCMService *pSvc;
|
---|
[51092] | 1183 | int rc = HGCMService::ResolveService(&pSvc, pszServiceName);
|
---|
[6985] | 1184 |
|
---|
[21878] | 1185 | if (RT_SUCCESS(rc))
|
---|
[1] | 1186 | {
|
---|
[1711] | 1187 | /* The service is already loaded. */
|
---|
[51092] | 1188 | pSvc->ReleaseService();
|
---|
[1711] | 1189 | rc = VERR_HGCM_SERVICE_EXISTS;
|
---|
[1] | 1190 | }
|
---|
| 1191 | else
|
---|
| 1192 | {
|
---|
[1711] | 1193 | /* Create the new service. */
|
---|
[75495] | 1194 | pSvc = new (std::nothrow) HGCMService();
|
---|
[1] | 1195 |
|
---|
[1711] | 1196 | if (!pSvc)
|
---|
[1] | 1197 | {
|
---|
| 1198 | rc = VERR_NO_MEMORY;
|
---|
| 1199 | }
|
---|
[1711] | 1200 | else
|
---|
[1] | 1201 | {
|
---|
[1711] | 1202 | /* Load the library and call the initialization entry point. */
|
---|
[75853] | 1203 | rc = pSvc->instanceCreate(pszServiceLibrary, pszServiceName, pUVM, pHgcmPort);
|
---|
[1] | 1204 |
|
---|
[13835] | 1205 | if (RT_SUCCESS(rc))
|
---|
[1] | 1206 | {
|
---|
| 1207 | /* Insert the just created service to list for future references. */
|
---|
[1711] | 1208 | pSvc->m_pSvcNext = sm_pSvcListHead;
|
---|
| 1209 | pSvc->m_pSvcPrev = NULL;
|
---|
[6985] | 1210 |
|
---|
[1] | 1211 | if (sm_pSvcListHead)
|
---|
| 1212 | {
|
---|
[1711] | 1213 | sm_pSvcListHead->m_pSvcPrev = pSvc;
|
---|
[1] | 1214 | }
|
---|
| 1215 | else
|
---|
| 1216 | {
|
---|
[1711] | 1217 | sm_pSvcListTail = pSvc;
|
---|
[1] | 1218 | }
|
---|
| 1219 |
|
---|
[1711] | 1220 | sm_pSvcListHead = pSvc;
|
---|
| 1221 |
|
---|
[1681] | 1222 | sm_cServices++;
|
---|
[1711] | 1223 |
|
---|
| 1224 | /* Reference the service (for first time) until it is unloaded on HGCM termination. */
|
---|
[51092] | 1225 | AssertRelease(pSvc->m_u32RefCnt == 0);
|
---|
| 1226 | pSvc->ReferenceService();
|
---|
[1711] | 1227 |
|
---|
| 1228 | LogFlowFunc(("service %p\n", pSvc));
|
---|
[1] | 1229 | }
|
---|
| 1230 | }
|
---|
| 1231 | }
|
---|
| 1232 |
|
---|
[13837] | 1233 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 1234 | return rc;
|
---|
| 1235 | }
|
---|
| 1236 |
|
---|
[1711] | 1237 | /** The method unloads a service.
|
---|
| 1238 | *
|
---|
| 1239 | * @thread main HGCM
|
---|
| 1240 | */
|
---|
[75574] | 1241 | void HGCMService::UnloadService(bool fUvmIsInvalid)
|
---|
[1711] | 1242 | {
|
---|
| 1243 | LogFlowFunc(("name = %s\n", m_pszSvcName));
|
---|
| 1244 |
|
---|
[75574] | 1245 | if (fUvmIsInvalid)
|
---|
[75853] | 1246 | {
|
---|
[75574] | 1247 | m_pUVM = NULL;
|
---|
[75853] | 1248 | m_pHgcmPort = NULL;
|
---|
| 1249 | }
|
---|
[75574] | 1250 |
|
---|
[1711] | 1251 | /* Remove the service from the list. */
|
---|
| 1252 | if (m_pSvcNext)
|
---|
| 1253 | {
|
---|
| 1254 | m_pSvcNext->m_pSvcPrev = m_pSvcPrev;
|
---|
| 1255 | }
|
---|
| 1256 | else
|
---|
| 1257 | {
|
---|
| 1258 | sm_pSvcListTail = m_pSvcPrev;
|
---|
| 1259 | }
|
---|
| 1260 |
|
---|
| 1261 | if (m_pSvcPrev)
|
---|
| 1262 | {
|
---|
| 1263 | m_pSvcPrev->m_pSvcNext = m_pSvcNext;
|
---|
| 1264 | }
|
---|
| 1265 | else
|
---|
| 1266 | {
|
---|
| 1267 | sm_pSvcListHead = m_pSvcNext;
|
---|
| 1268 | }
|
---|
| 1269 |
|
---|
| 1270 | sm_cServices--;
|
---|
| 1271 |
|
---|
| 1272 | /* The service must be unloaded only if all clients were disconnected. */
|
---|
| 1273 | LogFlowFunc(("m_u32RefCnt = %d\n", m_u32RefCnt));
|
---|
[51092] | 1274 | AssertRelease(m_u32RefCnt == 1);
|
---|
[1711] | 1275 |
|
---|
| 1276 | /* Now the service can be released. */
|
---|
[51092] | 1277 | ReleaseService();
|
---|
[1711] | 1278 | }
|
---|
| 1279 |
|
---|
| 1280 | /** The method unloads all services.
|
---|
| 1281 | *
|
---|
| 1282 | * @thread main HGCM
|
---|
| 1283 | */
|
---|
[75574] | 1284 | /* static */ void HGCMService::UnloadAll(bool fUvmIsInvalid)
|
---|
[1711] | 1285 | {
|
---|
| 1286 | while (sm_pSvcListHead)
|
---|
| 1287 | {
|
---|
[75574] | 1288 | sm_pSvcListHead->UnloadService(fUvmIsInvalid);
|
---|
[1711] | 1289 | }
|
---|
| 1290 | }
|
---|
| 1291 |
|
---|
| 1292 | /** The method obtains a referenced pointer to the service with
|
---|
| 1293 | * specified name. The caller must call ReleaseService when
|
---|
| 1294 | * the pointer is no longer needed.
|
---|
| 1295 | *
|
---|
| 1296 | * @param ppSvc Where to store the pointer to the service.
|
---|
| 1297 | * @param pszServiceName The name of the service.
|
---|
| 1298 | * @return VBox rc.
|
---|
| 1299 | * @thread main HGCM
|
---|
| 1300 | */
|
---|
[51092] | 1301 | /* static */ int HGCMService::ResolveService(HGCMService **ppSvc, const char *pszServiceName)
|
---|
[1711] | 1302 | {
|
---|
| 1303 | LogFlowFunc(("ppSvc = %p name = %s\n",
|
---|
| 1304 | ppSvc, pszServiceName));
|
---|
| 1305 |
|
---|
| 1306 | if (!ppSvc || !pszServiceName)
|
---|
| 1307 | {
|
---|
| 1308 | return VERR_INVALID_PARAMETER;
|
---|
| 1309 | }
|
---|
| 1310 |
|
---|
| 1311 | HGCMService *pSvc = sm_pSvcListHead;
|
---|
| 1312 |
|
---|
| 1313 | while (pSvc)
|
---|
| 1314 | {
|
---|
[51092] | 1315 | if (strcmp(pSvc->m_pszSvcName, pszServiceName) == 0)
|
---|
[1711] | 1316 | {
|
---|
| 1317 | break;
|
---|
| 1318 | }
|
---|
| 1319 |
|
---|
| 1320 | pSvc = pSvc->m_pSvcNext;
|
---|
| 1321 | }
|
---|
| 1322 |
|
---|
| 1323 | LogFlowFunc(("lookup in the list is %p\n", pSvc));
|
---|
| 1324 |
|
---|
| 1325 | if (pSvc == NULL)
|
---|
| 1326 | {
|
---|
[10807] | 1327 | *ppSvc = NULL;
|
---|
[1711] | 1328 | return VERR_HGCM_SERVICE_NOT_FOUND;
|
---|
| 1329 | }
|
---|
| 1330 |
|
---|
[51092] | 1331 | pSvc->ReferenceService();
|
---|
[1711] | 1332 |
|
---|
| 1333 | *ppSvc = pSvc;
|
---|
| 1334 |
|
---|
| 1335 | return VINF_SUCCESS;
|
---|
| 1336 | }
|
---|
| 1337 |
|
---|
| 1338 | /** The method increases reference counter.
|
---|
| 1339 | *
|
---|
| 1340 | * @thread main HGCM
|
---|
| 1341 | */
|
---|
[51092] | 1342 | void HGCMService::ReferenceService(void)
|
---|
[1711] | 1343 | {
|
---|
[51092] | 1344 | ASMAtomicIncU32(&m_u32RefCnt);
|
---|
[22814] | 1345 | LogFlowFunc(("[%s] m_u32RefCnt = %d\n", m_pszSvcName, m_u32RefCnt));
|
---|
[6985] | 1346 | }
|
---|
[1711] | 1347 |
|
---|
| 1348 | /** The method dereferences a service and deletes it when no more refs.
|
---|
| 1349 | *
|
---|
| 1350 | * @thread main HGCM
|
---|
| 1351 | */
|
---|
[51092] | 1352 | void HGCMService::ReleaseService(void)
|
---|
[1711] | 1353 | {
|
---|
| 1354 | LogFlowFunc(("m_u32RefCnt = %d\n", m_u32RefCnt));
|
---|
[51092] | 1355 | uint32_t u32RefCnt = ASMAtomicDecU32(&m_u32RefCnt);
|
---|
[1711] | 1356 | AssertRelease(u32RefCnt != ~0U);
|
---|
| 1357 |
|
---|
| 1358 | LogFlowFunc(("u32RefCnt = %d, name %s\n", u32RefCnt, m_pszSvcName));
|
---|
| 1359 |
|
---|
| 1360 | if (u32RefCnt == 0)
|
---|
| 1361 | {
|
---|
[51092] | 1362 | instanceDestroy();
|
---|
[1711] | 1363 | delete this;
|
---|
| 1364 | }
|
---|
| 1365 | }
|
---|
| 1366 |
|
---|
| 1367 | /** The method is called when the VM is being reset or terminated
|
---|
| 1368 | * and disconnects all clients from all services.
|
---|
| 1369 | *
|
---|
| 1370 | * @thread main HGCM
|
---|
| 1371 | */
|
---|
[51092] | 1372 | /* static */ void HGCMService::Reset(void)
|
---|
[1385] | 1373 | {
|
---|
| 1374 | g_fResetting = true;
|
---|
| 1375 |
|
---|
[1711] | 1376 | HGCMService *pSvc = sm_pSvcListHead;
|
---|
[1385] | 1377 |
|
---|
[1711] | 1378 | while (pSvc)
|
---|
[1385] | 1379 | {
|
---|
[1711] | 1380 | while (pSvc->m_cClients && pSvc->m_paClientIds)
|
---|
| 1381 | {
|
---|
| 1382 | LogFlowFunc(("handle %d\n", pSvc->m_paClientIds[0]));
|
---|
[51092] | 1383 | pSvc->DisconnectClient(pSvc->m_paClientIds[0], false);
|
---|
[1711] | 1384 | }
|
---|
[1385] | 1385 |
|
---|
[1711] | 1386 | pSvc = pSvc->m_pSvcNext;
|
---|
[1385] | 1387 | }
|
---|
[1711] | 1388 |
|
---|
[1385] | 1389 | g_fResetting = false;
|
---|
| 1390 | }
|
---|
| 1391 |
|
---|
[1711] | 1392 | /** The method saves the HGCM state.
|
---|
| 1393 | *
|
---|
| 1394 | * @param pSSM The saved state context.
|
---|
| 1395 | * @return VBox rc.
|
---|
| 1396 | * @thread main HGCM
|
---|
| 1397 | */
|
---|
[51092] | 1398 | /* static */ int HGCMService::SaveState(PSSMHANDLE pSSM)
|
---|
[1681] | 1399 | {
|
---|
| 1400 | /* Save the current handle count and restore afterwards to avoid client id conflicts. */
|
---|
| 1401 | int rc = SSMR3PutU32(pSSM, hgcmObjQueryHandleCount());
|
---|
| 1402 | AssertRCReturn(rc, rc);
|
---|
| 1403 |
|
---|
| 1404 | LogFlowFunc(("%d services to be saved:\n", sm_cServices));
|
---|
[6985] | 1405 |
|
---|
[1681] | 1406 | /* Save number of services. */
|
---|
| 1407 | rc = SSMR3PutU32(pSSM, sm_cServices);
|
---|
| 1408 | AssertRCReturn(rc, rc);
|
---|
| 1409 |
|
---|
| 1410 | /* Save every service. */
|
---|
| 1411 | HGCMService *pSvc = sm_pSvcListHead;
|
---|
| 1412 |
|
---|
| 1413 | while (pSvc)
|
---|
| 1414 | {
|
---|
| 1415 | LogFlowFunc(("Saving service [%s]\n", pSvc->m_pszSvcName));
|
---|
| 1416 |
|
---|
| 1417 | /* Save the length of the service name. */
|
---|
[14215] | 1418 | rc = SSMR3PutU32(pSSM, (uint32_t) strlen(pSvc->m_pszSvcName) + 1);
|
---|
[1681] | 1419 | AssertRCReturn(rc, rc);
|
---|
| 1420 |
|
---|
| 1421 | /* Save the name of the service. */
|
---|
| 1422 | rc = SSMR3PutStrZ(pSSM, pSvc->m_pszSvcName);
|
---|
| 1423 | AssertRCReturn(rc, rc);
|
---|
| 1424 |
|
---|
| 1425 | /* Save the number of clients. */
|
---|
| 1426 | rc = SSMR3PutU32(pSSM, pSvc->m_cClients);
|
---|
| 1427 | AssertRCReturn(rc, rc);
|
---|
| 1428 |
|
---|
| 1429 | /* Call the service for every client. Normally a service must not have
|
---|
| 1430 | * a global state to be saved: only per client info is relevant.
|
---|
| 1431 | * The global state of a service is configured during VM startup.
|
---|
| 1432 | */
|
---|
[70599] | 1433 | uint32_t i;
|
---|
[1681] | 1434 |
|
---|
| 1435 | for (i = 0; i < pSvc->m_cClients; i++)
|
---|
| 1436 | {
|
---|
[1711] | 1437 | uint32_t u32ClientId = pSvc->m_paClientIds[i];
|
---|
[1681] | 1438 |
|
---|
[1711] | 1439 | Log(("client id 0x%08X\n", u32ClientId));
|
---|
[1681] | 1440 |
|
---|
[75853] | 1441 | /* Save the client id. (fRequestor is saved via SVC_MSG_SAVESTATE for convenience.) */
|
---|
[1711] | 1442 | rc = SSMR3PutU32(pSSM, u32ClientId);
|
---|
[1681] | 1443 | AssertRCReturn(rc, rc);
|
---|
| 1444 |
|
---|
| 1445 | /* Call the service, so the operation is executed by the service thread. */
|
---|
[51092] | 1446 | rc = pSvc->saveClientState(u32ClientId, pSSM);
|
---|
[1681] | 1447 | AssertRCReturn(rc, rc);
|
---|
| 1448 | }
|
---|
| 1449 |
|
---|
| 1450 | pSvc = pSvc->m_pSvcNext;
|
---|
| 1451 | }
|
---|
| 1452 |
|
---|
| 1453 | return VINF_SUCCESS;
|
---|
| 1454 | }
|
---|
| 1455 |
|
---|
[1711] | 1456 | /** The method loads saved HGCM state.
|
---|
| 1457 | *
|
---|
[75853] | 1458 | * @param pSSM The saved state handle.
|
---|
| 1459 | * @param uVersion The state version being loaded.
|
---|
[1711] | 1460 | * @return VBox rc.
|
---|
| 1461 | * @thread main HGCM
|
---|
| 1462 | */
|
---|
[75853] | 1463 | /* static */ int HGCMService::LoadState(PSSMHANDLE pSSM, uint32_t uVersion)
|
---|
[1681] | 1464 | {
|
---|
| 1465 | /* Restore handle count to avoid client id conflicts. */
|
---|
| 1466 | uint32_t u32;
|
---|
| 1467 |
|
---|
| 1468 | int rc = SSMR3GetU32(pSSM, &u32);
|
---|
| 1469 | AssertRCReturn(rc, rc);
|
---|
| 1470 |
|
---|
| 1471 | hgcmObjSetHandleCount(u32);
|
---|
| 1472 |
|
---|
| 1473 | /* Get the number of services. */
|
---|
| 1474 | uint32_t cServices;
|
---|
| 1475 |
|
---|
| 1476 | rc = SSMR3GetU32(pSSM, &cServices);
|
---|
| 1477 | AssertRCReturn(rc, rc);
|
---|
[6985] | 1478 |
|
---|
[1681] | 1479 | LogFlowFunc(("%d services to be restored:\n", cServices));
|
---|
| 1480 |
|
---|
| 1481 | while (cServices--)
|
---|
| 1482 | {
|
---|
| 1483 | /* Get the length of the service name. */
|
---|
| 1484 | rc = SSMR3GetU32(pSSM, &u32);
|
---|
| 1485 | AssertRCReturn(rc, rc);
|
---|
| 1486 | AssertReturn(u32 <= VBOX_HGCM_SVC_NAME_MAX_BYTES, VERR_SSM_UNEXPECTED_DATA);
|
---|
[6985] | 1487 |
|
---|
[1681] | 1488 | /* Get the service name. */
|
---|
[75385] | 1489 | char szServiceName[VBOX_HGCM_SVC_NAME_MAX_BYTES];
|
---|
| 1490 | rc = SSMR3GetStrZ(pSSM, szServiceName, u32);
|
---|
[1681] | 1491 | AssertRCReturn(rc, rc);
|
---|
[6985] | 1492 |
|
---|
[75385] | 1493 | LogRel(("HGCM: Restoring [%s]\n", szServiceName));
|
---|
[6985] | 1494 |
|
---|
[1681] | 1495 | /* Resolve the service instance. */
|
---|
[6985] | 1496 | HGCMService *pSvc;
|
---|
[75385] | 1497 | rc = ResolveService(&pSvc, szServiceName);
|
---|
| 1498 | AssertLogRelMsgReturn(pSvc, ("rc=%Rrc, %s\n", rc, szServiceName), VERR_SSM_UNEXPECTED_DATA);
|
---|
[6985] | 1499 |
|
---|
[1681] | 1500 | /* Get the number of clients. */
|
---|
| 1501 | uint32_t cClients;
|
---|
| 1502 | rc = SSMR3GetU32(pSSM, &cClients);
|
---|
[13835] | 1503 | if (RT_FAILURE(rc))
|
---|
[1711] | 1504 | {
|
---|
[51092] | 1505 | pSvc->ReleaseService();
|
---|
[1711] | 1506 | AssertFailed();
|
---|
| 1507 | return rc;
|
---|
| 1508 | }
|
---|
| 1509 |
|
---|
[1681] | 1510 | while (cClients--)
|
---|
| 1511 | {
|
---|
[75853] | 1512 | /* Get the client ID and fRequest (convieniently save via SVC_MSG_SAVESTATE
|
---|
| 1513 | but restored here in time for calling CreateAndConnectClient). */
|
---|
[1711] | 1514 | uint32_t u32ClientId;
|
---|
| 1515 | rc = SSMR3GetU32(pSSM, &u32ClientId);
|
---|
[75853] | 1516 | uint32_t fRequestor = VMMDEV_REQUESTOR_LEGACY;
|
---|
| 1517 | if (RT_SUCCESS(rc) && uVersion > HGCM_SAVED_STATE_VERSION_V2)
|
---|
| 1518 | rc = SSMR3GetU32(pSSM, &fRequestor);
|
---|
| 1519 | AssertLogRelMsgRCReturnStmt(rc, ("rc=%Rrc, %s\n", rc, szServiceName), pSvc->ReleaseService(), rc);
|
---|
[1681] | 1520 |
|
---|
| 1521 | /* Connect the client. */
|
---|
[75773] | 1522 | rc = pSvc->CreateAndConnectClient(NULL, u32ClientId, fRequestor, true /*fRestoring*/);
|
---|
[75853] | 1523 | AssertLogRelMsgRCReturnStmt(rc, ("rc=%Rrc, %s\n", rc, szServiceName), pSvc->ReleaseService(), rc);
|
---|
[1] | 1524 |
|
---|
[1711] | 1525 | /* Call the service, so the operation is executed by the service thread. */
|
---|
[75853] | 1526 | rc = pSvc->loadClientState(u32ClientId, pSSM, uVersion);
|
---|
| 1527 | AssertLogRelMsgRCReturnStmt(rc, ("rc=%Rrc, %s\n", rc, szServiceName), pSvc->ReleaseService(), rc);
|
---|
[1] | 1528 | }
|
---|
| 1529 |
|
---|
[51092] | 1530 | pSvc->ReleaseService();
|
---|
[1] | 1531 | }
|
---|
| 1532 |
|
---|
[1711] | 1533 | return VINF_SUCCESS;
|
---|
[1] | 1534 | }
|
---|
| 1535 |
|
---|
[1681] | 1536 | /* Create a new client instance and connect it to the service.
|
---|
| 1537 | *
|
---|
| 1538 | * @param pu32ClientIdOut If not NULL, then the method must generate a new handle for the client.
|
---|
| 1539 | * If NULL, use the given 'u32ClientIdIn' handle.
|
---|
| 1540 | * @param u32ClientIdIn The handle for the client, when 'pu32ClientIdOut' is NULL.
|
---|
[75773] | 1541 | * @param fRequestor The requestor flags, VMMDEV_REQUESTOR_LEGACY if not available.
|
---|
| 1542 | * @param fRestoring Set if we're restoring a saved state.
|
---|
| 1543 | * @return VBox status code.
|
---|
[1681] | 1544 | */
|
---|
[75773] | 1545 | int HGCMService::CreateAndConnectClient(uint32_t *pu32ClientIdOut, uint32_t u32ClientIdIn, uint32_t fRequestor, bool fRestoring)
|
---|
[1681] | 1546 | {
|
---|
[75773] | 1547 | LogFlowFunc(("pu32ClientIdOut = %p, u32ClientIdIn = %d, fRequestor = %#x, fRestoring = %d\n",
|
---|
| 1548 | pu32ClientIdOut, u32ClientIdIn, fRequestor, fRestoring));
|
---|
[1711] | 1549 |
|
---|
| 1550 | /* Allocate a client information structure. */
|
---|
[75853] | 1551 | HGCMClient *pClient = new (std::nothrow) HGCMClient(fRequestor);
|
---|
[1] | 1552 |
|
---|
[1681] | 1553 | if (!pClient)
|
---|
| 1554 | {
|
---|
[55988] | 1555 | Log1WarningFunc(("Could not allocate HGCMClient!!!\n"));
|
---|
[1681] | 1556 | return VERR_NO_MEMORY;
|
---|
| 1557 | }
|
---|
| 1558 |
|
---|
| 1559 | uint32_t handle;
|
---|
[6985] | 1560 |
|
---|
[1681] | 1561 | if (pu32ClientIdOut != NULL)
|
---|
| 1562 | {
|
---|
[51092] | 1563 | handle = hgcmObjGenerateHandle(pClient);
|
---|
[1681] | 1564 | }
|
---|
| 1565 | else
|
---|
| 1566 | {
|
---|
[51092] | 1567 | handle = hgcmObjAssignHandle(pClient, u32ClientIdIn);
|
---|
[1681] | 1568 | }
|
---|
| 1569 |
|
---|
[1711] | 1570 | LogFlowFunc(("client id = %d\n", handle));
|
---|
| 1571 |
|
---|
[1681] | 1572 | AssertRelease(handle);
|
---|
| 1573 |
|
---|
[1711] | 1574 | /* Initialize the HGCM part of the client. */
|
---|
[51092] | 1575 | int rc = pClient->Init(this);
|
---|
[1681] | 1576 |
|
---|
[13835] | 1577 | if (RT_SUCCESS(rc))
|
---|
[1681] | 1578 | {
|
---|
[1711] | 1579 | /* Call the service. */
|
---|
[75541] | 1580 | HGCMMsgCore *pCoreMsg;
|
---|
[1711] | 1581 |
|
---|
[75541] | 1582 | rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_CONNECT, hgcmMessageAllocSvc);
|
---|
[1711] | 1583 |
|
---|
[13835] | 1584 | if (RT_SUCCESS(rc))
|
---|
[1711] | 1585 | {
|
---|
[75541] | 1586 | HGCMMsgSvcConnect *pMsg = (HGCMMsgSvcConnect *)pCoreMsg;
|
---|
[1711] | 1587 |
|
---|
| 1588 | pMsg->u32ClientId = handle;
|
---|
[75774] | 1589 | pMsg->fRequestor = fRequestor;
|
---|
| 1590 | pMsg->fRestoring = fRestoring;
|
---|
[1711] | 1591 |
|
---|
[75541] | 1592 | rc = hgcmMsgSend(pMsg);
|
---|
[1711] | 1593 |
|
---|
[21878] | 1594 | if (RT_SUCCESS(rc))
|
---|
[1711] | 1595 | {
|
---|
| 1596 | /* Add the client Id to the array. */
|
---|
| 1597 | if (m_cClients == m_cClientsAllocated)
|
---|
| 1598 | {
|
---|
[70599] | 1599 | const uint32_t cDelta = 64;
|
---|
| 1600 |
|
---|
| 1601 | /* Guards against integer overflow on 32bit arch and also limits size of m_paClientIds array to 4GB*/
|
---|
| 1602 | if (m_cClientsAllocated < UINT32_MAX / sizeof(m_paClientIds[0]) - cDelta)
|
---|
| 1603 | {
|
---|
| 1604 | uint32_t *paClientIdsNew;
|
---|
| 1605 |
|
---|
[75541] | 1606 | paClientIdsNew = (uint32_t *)RTMemRealloc(m_paClientIds,
|
---|
| 1607 | (m_cClientsAllocated + cDelta) * sizeof(m_paClientIds[0]));
|
---|
[70599] | 1608 | Assert(paClientIdsNew);
|
---|
| 1609 |
|
---|
| 1610 | if (paClientIdsNew)
|
---|
| 1611 | {
|
---|
| 1612 | m_paClientIds = paClientIdsNew;
|
---|
| 1613 | m_cClientsAllocated += cDelta;
|
---|
| 1614 | }
|
---|
| 1615 | else
|
---|
| 1616 | {
|
---|
| 1617 | rc = VERR_NO_MEMORY;
|
---|
| 1618 | }
|
---|
| 1619 | }
|
---|
| 1620 | else
|
---|
| 1621 | {
|
---|
| 1622 | rc = VERR_NO_MEMORY;
|
---|
| 1623 | }
|
---|
[1711] | 1624 | }
|
---|
[6985] | 1625 |
|
---|
[1711] | 1626 | m_paClientIds[m_cClients] = handle;
|
---|
| 1627 | m_cClients++;
|
---|
| 1628 | }
|
---|
| 1629 | }
|
---|
[1681] | 1630 | }
|
---|
| 1631 |
|
---|
[13835] | 1632 | if (RT_FAILURE(rc))
|
---|
[1681] | 1633 | {
|
---|
[51092] | 1634 | hgcmObjDeleteHandle(handle);
|
---|
[1681] | 1635 | }
|
---|
| 1636 | else
|
---|
| 1637 | {
|
---|
| 1638 | if (pu32ClientIdOut != NULL)
|
---|
| 1639 | {
|
---|
| 1640 | *pu32ClientIdOut = handle;
|
---|
| 1641 | }
|
---|
[1711] | 1642 |
|
---|
[51092] | 1643 | ReferenceService();
|
---|
[1681] | 1644 | }
|
---|
[6985] | 1645 |
|
---|
[13837] | 1646 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1681] | 1647 | return rc;
|
---|
| 1648 | }
|
---|
| 1649 |
|
---|
[1711] | 1650 | /* Disconnect the client from the service and delete the client handle.
|
---|
| 1651 | *
|
---|
| 1652 | * @param u32ClientId The handle of the client.
|
---|
| 1653 | * @return VBox rc.
|
---|
| 1654 | */
|
---|
[51092] | 1655 | int HGCMService::DisconnectClient(uint32_t u32ClientId, bool fFromService)
|
---|
[1] | 1656 | {
|
---|
[6981] | 1657 | int rc = VINF_SUCCESS;
|
---|
[1] | 1658 |
|
---|
[6981] | 1659 | LogFlowFunc(("client id = %d, fFromService = %d\n", u32ClientId, fFromService));
|
---|
[1] | 1660 |
|
---|
[6981] | 1661 | if (!fFromService)
|
---|
[1] | 1662 | {
|
---|
[6981] | 1663 | /* Call the service. */
|
---|
[75541] | 1664 | HGCMMsgCore *pCoreMsg;
|
---|
[1] | 1665 |
|
---|
[75541] | 1666 | rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_DISCONNECT, hgcmMessageAllocSvc);
|
---|
[1] | 1667 |
|
---|
[13835] | 1668 | if (RT_SUCCESS(rc))
|
---|
[6981] | 1669 | {
|
---|
[75541] | 1670 | HGCMMsgSvcDisconnect *pMsg = (HGCMMsgSvcDisconnect *)pCoreMsg;
|
---|
[1] | 1671 |
|
---|
[6981] | 1672 | pMsg->u32ClientId = u32ClientId;
|
---|
[6967] | 1673 |
|
---|
[75541] | 1674 | rc = hgcmMsgSend(pMsg);
|
---|
[6981] | 1675 | }
|
---|
[22732] | 1676 | else
|
---|
| 1677 | {
|
---|
[22814] | 1678 | LogRel(("(%d, %d) [%s] hgcmMsgAlloc(%p, SVC_MSG_DISCONNECT) failed %Rrc\n",
|
---|
[75539] | 1679 | u32ClientId, fFromService, RT_VALID_PTR(m_pszSvcName)? m_pszSvcName: "", m_pThread, rc));
|
---|
[22732] | 1680 | }
|
---|
[6981] | 1681 | }
|
---|
| 1682 |
|
---|
[22732] | 1683 | /* Remove the client id from the array in any case, rc does not matter. */
|
---|
[70599] | 1684 | uint32_t i;
|
---|
[22732] | 1685 |
|
---|
| 1686 | for (i = 0; i < m_cClients; i++)
|
---|
[6981] | 1687 | {
|
---|
[22732] | 1688 | if (m_paClientIds[i] == u32ClientId)
|
---|
| 1689 | {
|
---|
| 1690 | m_cClients--;
|
---|
[1711] | 1691 |
|
---|
[22732] | 1692 | if (m_cClients > i)
|
---|
[75539] | 1693 | memmove(&m_paClientIds[i], &m_paClientIds[i + 1], sizeof(m_paClientIds[0]) * (m_cClients - i));
|
---|
[6985] | 1694 |
|
---|
[22814] | 1695 | /* Delete the client handle. */
|
---|
[51092] | 1696 | hgcmObjDeleteHandle(u32ClientId);
|
---|
[22814] | 1697 |
|
---|
| 1698 | /* The service must be released. */
|
---|
[51092] | 1699 | ReleaseService();
|
---|
[22814] | 1700 |
|
---|
[22732] | 1701 | break;
|
---|
[1385] | 1702 | }
|
---|
[22732] | 1703 | }
|
---|
[1711] | 1704 |
|
---|
[13837] | 1705 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 1706 | return rc;
|
---|
| 1707 | }
|
---|
| 1708 |
|
---|
[51092] | 1709 | int HGCMService::RegisterExtension(HGCMSVCEXTHANDLE handle,
|
---|
| 1710 | PFNHGCMSVCEXT pfnExtension,
|
---|
| 1711 | void *pvExtension)
|
---|
[2386] | 1712 | {
|
---|
| 1713 | LogFlowFunc(("%s\n", handle->pszServiceName));
|
---|
| 1714 |
|
---|
| 1715 | /* Forward the message to the service thread. */
|
---|
[75541] | 1716 | HGCMMsgCore *pCoreMsg;
|
---|
| 1717 | int rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_REGEXT, hgcmMessageAllocSvc);
|
---|
[2386] | 1718 |
|
---|
[13835] | 1719 | if (RT_SUCCESS(rc))
|
---|
[2386] | 1720 | {
|
---|
[75541] | 1721 | HGCMMsgSvcRegisterExtension *pMsg = (HGCMMsgSvcRegisterExtension *)pCoreMsg;
|
---|
[2386] | 1722 |
|
---|
| 1723 | pMsg->handle = handle;
|
---|
| 1724 | pMsg->pfnExtension = pfnExtension;
|
---|
| 1725 | pMsg->pvExtension = pvExtension;
|
---|
| 1726 |
|
---|
[75541] | 1727 | rc = hgcmMsgSend(pMsg);
|
---|
[2386] | 1728 | }
|
---|
| 1729 |
|
---|
[13837] | 1730 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[2386] | 1731 | return rc;
|
---|
| 1732 | }
|
---|
| 1733 |
|
---|
[51092] | 1734 | void HGCMService::UnregisterExtension(HGCMSVCEXTHANDLE handle)
|
---|
[2386] | 1735 | {
|
---|
| 1736 | /* Forward the message to the service thread. */
|
---|
[75541] | 1737 | HGCMMsgCore *pCoreMsg;
|
---|
| 1738 | int rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_UNREGEXT, hgcmMessageAllocSvc);
|
---|
[2386] | 1739 |
|
---|
[13835] | 1740 | if (RT_SUCCESS(rc))
|
---|
[2386] | 1741 | {
|
---|
[75541] | 1742 | HGCMMsgSvcUnregisterExtension *pMsg = (HGCMMsgSvcUnregisterExtension *)pCoreMsg;
|
---|
[2386] | 1743 |
|
---|
| 1744 | pMsg->handle = handle;
|
---|
| 1745 |
|
---|
[75541] | 1746 | rc = hgcmMsgSend(pMsg);
|
---|
[2386] | 1747 | }
|
---|
| 1748 |
|
---|
[13837] | 1749 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[2386] | 1750 | }
|
---|
| 1751 |
|
---|
[75541] | 1752 | /** Perform a guest call to the service.
|
---|
[1711] | 1753 | *
|
---|
| 1754 | * @param pHGCMPort The port to be used for completion confirmation.
|
---|
| 1755 | * @param pCmd The VBox HGCM context.
|
---|
| 1756 | * @param u32ClientId The client handle to be disconnected and deleted.
|
---|
| 1757 | * @param u32Function The function number.
|
---|
| 1758 | * @param cParms Number of parameters.
|
---|
| 1759 | * @param paParms Pointer to array of parameters.
|
---|
[75500] | 1760 | * @param tsArrival The STAM_GET_TS() value when the request arrived.
|
---|
[1711] | 1761 | * @return VBox rc.
|
---|
[75541] | 1762 | * @retval VINF_HGCM_ASYNC_EXECUTE on success.
|
---|
[1] | 1763 | */
|
---|
[51092] | 1764 | int HGCMService::GuestCall(PPDMIHGCMPORT pHGCMPort, PVBOXHGCMCMD pCmd, uint32_t u32ClientId, uint32_t u32Function,
|
---|
[75500] | 1765 | uint32_t cParms, VBOXHGCMSVCPARM paParms[], uint64_t tsArrival)
|
---|
[1] | 1766 | {
|
---|
[75990] | 1767 | LogFlow(("MAIN::HGCMService::GuestCall\n"));
|
---|
[1] | 1768 |
|
---|
[75541] | 1769 | int rc;
|
---|
| 1770 | HGCMMsgCall *pMsg = new (std::nothrow) HGCMMsgCall(m_pThread);
|
---|
| 1771 | if (pMsg)
|
---|
[1] | 1772 | {
|
---|
[75990] | 1773 | pMsg->Reference(); /** @todo starts out with zero references. */
|
---|
[1] | 1774 |
|
---|
[75541] | 1775 | pMsg->pCmd = pCmd;
|
---|
| 1776 | pMsg->pHGCMPort = pHGCMPort;
|
---|
[1711] | 1777 | pMsg->u32ClientId = u32ClientId;
|
---|
| 1778 | pMsg->u32Function = u32Function;
|
---|
| 1779 | pMsg->cParms = cParms;
|
---|
| 1780 | pMsg->paParms = paParms;
|
---|
[75500] | 1781 | pMsg->tsArrival = tsArrival;
|
---|
[1] | 1782 |
|
---|
[75541] | 1783 | rc = hgcmMsgPost(pMsg, hgcmMsgCompletionCallback);
|
---|
[1] | 1784 | }
|
---|
| 1785 | else
|
---|
| 1786 | {
|
---|
[75990] | 1787 | Log(("MAIN::HGCMService::GuestCall: Message allocation failed\n"));
|
---|
[75541] | 1788 | rc = VERR_NO_MEMORY;
|
---|
[1] | 1789 | }
|
---|
| 1790 |
|
---|
[13837] | 1791 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 1792 | return rc;
|
---|
| 1793 | }
|
---|
| 1794 |
|
---|
[75990] | 1795 | /** Guest cancelled a request (call, connection attempt, disconnect attempt).
|
---|
| 1796 | *
|
---|
| 1797 | * @param pHGCMPort The port to be used for completion confirmation.
|
---|
| 1798 | * @param pCmd The VBox HGCM context.
|
---|
[76013] | 1799 | * @param idClient The client handle to be disconnected and deleted.
|
---|
[75990] | 1800 | * @return VBox rc.
|
---|
| 1801 | */
|
---|
| 1802 | void HGCMService::GuestCancelled(PPDMIHGCMPORT pHGCMPort, PVBOXHGCMCMD pCmd, uint32_t idClient)
|
---|
| 1803 | {
|
---|
| 1804 | LogFlow(("MAIN::HGCMService::GuestCancelled\n"));
|
---|
| 1805 |
|
---|
| 1806 | if (m_fntable.pfnCancelled)
|
---|
| 1807 | {
|
---|
| 1808 | HGCMMsgCancelled *pMsg = new (std::nothrow) HGCMMsgCancelled(m_pThread);
|
---|
| 1809 | if (pMsg)
|
---|
| 1810 | {
|
---|
| 1811 | pMsg->Reference(); /** @todo starts out with zero references. */
|
---|
| 1812 |
|
---|
| 1813 | pMsg->pCmd = pCmd;
|
---|
| 1814 | pMsg->pHGCMPort = pHGCMPort;
|
---|
| 1815 | pMsg->idClient = idClient;
|
---|
| 1816 |
|
---|
| 1817 | hgcmMsgPost(pMsg, NULL);
|
---|
| 1818 | }
|
---|
| 1819 | else
|
---|
| 1820 | Log(("MAIN::HGCMService::GuestCancelled: Message allocation failed\n"));
|
---|
| 1821 | }
|
---|
| 1822 | }
|
---|
| 1823 |
|
---|
[75541] | 1824 | /** Perform a host call the service.
|
---|
[1711] | 1825 | *
|
---|
| 1826 | * @param u32Function The function number.
|
---|
| 1827 | * @param cParms Number of parameters.
|
---|
| 1828 | * @param paParms Pointer to array of parameters.
|
---|
| 1829 | * @return VBox rc.
|
---|
[1] | 1830 | */
|
---|
[51092] | 1831 | int HGCMService::HostCall(uint32_t u32Function, uint32_t cParms, VBOXHGCMSVCPARM *paParms)
|
---|
[1] | 1832 | {
|
---|
[1711] | 1833 | LogFlowFunc(("%s u32Function = %d, cParms = %d, paParms = %p\n",
|
---|
| 1834 | m_pszSvcName, u32Function, cParms, paParms));
|
---|
| 1835 |
|
---|
[75541] | 1836 | HGCMMsgCore *pCoreMsg;
|
---|
| 1837 | int rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_HOSTCALL, hgcmMessageAllocSvc);
|
---|
[1] | 1838 |
|
---|
[13835] | 1839 | if (RT_SUCCESS(rc))
|
---|
[1] | 1840 | {
|
---|
[75541] | 1841 | HGCMMsgHostCallSvc *pMsg = (HGCMMsgHostCallSvc *)pCoreMsg;
|
---|
[1] | 1842 |
|
---|
| 1843 | pMsg->u32Function = u32Function;
|
---|
| 1844 | pMsg->cParms = cParms;
|
---|
| 1845 | pMsg->paParms = paParms;
|
---|
| 1846 |
|
---|
[75541] | 1847 | rc = hgcmMsgSend(pMsg);
|
---|
[1] | 1848 | }
|
---|
| 1849 |
|
---|
[13837] | 1850 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 1851 | return rc;
|
---|
| 1852 | }
|
---|
| 1853 |
|
---|
[75969] | 1854 | /** Posts a broadcast notification event to all interested services.
|
---|
| 1855 | *
|
---|
| 1856 | * @param enmEvent The notification event.
|
---|
| 1857 | */
|
---|
| 1858 | /*static*/ void HGCMService::BroadcastNotify(HGCMNOTIFYEVENT enmEvent)
|
---|
| 1859 | {
|
---|
| 1860 | for (HGCMService *pService = sm_pSvcListHead; pService != NULL; pService = pService->m_pSvcNext)
|
---|
| 1861 | {
|
---|
| 1862 | pService->Notify(enmEvent);
|
---|
| 1863 | }
|
---|
| 1864 | }
|
---|
| 1865 |
|
---|
| 1866 | /** Posts a broadcast notification event to the service.
|
---|
| 1867 | *
|
---|
| 1868 | * @param enmEvent The notification event.
|
---|
| 1869 | */
|
---|
| 1870 | void HGCMService::Notify(HGCMNOTIFYEVENT enmEvent)
|
---|
| 1871 | {
|
---|
| 1872 | LogFlowFunc(("%s enmEvent=%d pfnNotify=%p\n", m_pszSvcName, enmEvent, m_fntable.pfnNotify));
|
---|
| 1873 | if (m_fntable.pfnNotify)
|
---|
| 1874 | {
|
---|
| 1875 | HGCMMsgCore *pCoreMsg;
|
---|
| 1876 | int rc = hgcmMsgAlloc(m_pThread, &pCoreMsg, SVC_MSG_NOTIFY, hgcmMessageAllocSvc);
|
---|
| 1877 | if (RT_SUCCESS(rc))
|
---|
| 1878 | {
|
---|
| 1879 | HGCMMsgNotify *pMsg = (HGCMMsgNotify *)pCoreMsg;
|
---|
| 1880 | pMsg->enmEvent = enmEvent;
|
---|
| 1881 |
|
---|
| 1882 | rc = hgcmMsgPost(pMsg, NULL);
|
---|
| 1883 | AssertRC(rc);
|
---|
| 1884 | }
|
---|
| 1885 | }
|
---|
| 1886 | }
|
---|
| 1887 |
|
---|
[6985] | 1888 | /*
|
---|
[1711] | 1889 | * Main HGCM thread that manages services.
|
---|
| 1890 | */
|
---|
[6985] | 1891 |
|
---|
[1711] | 1892 | /* Messages processed by the main HGCM thread. */
|
---|
[75969] | 1893 | #define HGCM_MSG_CONNECT (10) /**< Connect a client to a service. */
|
---|
| 1894 | #define HGCM_MSG_DISCONNECT (11) /**< Disconnect the specified client id. */
|
---|
| 1895 | #define HGCM_MSG_LOAD (12) /**< Load the service. */
|
---|
| 1896 | #define HGCM_MSG_HOSTCALL (13) /**< Call the service. */
|
---|
| 1897 | #define HGCM_MSG_LOADSTATE (14) /**< Load saved state for the specified service. */
|
---|
| 1898 | #define HGCM_MSG_SAVESTATE (15) /**< Save state for the specified service. */
|
---|
| 1899 | #define HGCM_MSG_RESET (16) /**< Disconnect all clients from the specified service. */
|
---|
| 1900 | #define HGCM_MSG_QUIT (17) /**< Unload all services and terminate the thread. */
|
---|
| 1901 | #define HGCM_MSG_REGEXT (18) /**< Register a service extension. */
|
---|
| 1902 | #define HGCM_MSG_UNREGEXT (19) /**< Unregister a service extension. */
|
---|
| 1903 | #define HGCM_MSG_BRD_NOTIFY (20) /**< Broadcast notification event (VM state change). */
|
---|
[1080] | 1904 |
|
---|
[1711] | 1905 | class HGCMMsgMainConnect: public HGCMMsgHeader
|
---|
| 1906 | {
|
---|
| 1907 | public:
|
---|
| 1908 | /* Service name. */
|
---|
| 1909 | const char *pszServiceName;
|
---|
| 1910 | /* Where to store the client handle. */
|
---|
| 1911 | uint32_t *pu32ClientId;
|
---|
| 1912 | };
|
---|
[1080] | 1913 |
|
---|
[1711] | 1914 | class HGCMMsgMainDisconnect: public HGCMMsgHeader
|
---|
| 1915 | {
|
---|
| 1916 | public:
|
---|
| 1917 | /* Handle of the client to be disconnected. */
|
---|
| 1918 | uint32_t u32ClientId;
|
---|
| 1919 | };
|
---|
[1080] | 1920 |
|
---|
[1711] | 1921 | class HGCMMsgMainLoad: public HGCMMsgCore
|
---|
| 1922 | {
|
---|
| 1923 | public:
|
---|
| 1924 | /* Name of the library to be loaded. */
|
---|
| 1925 | const char *pszServiceLibrary;
|
---|
| 1926 | /* Name to be assigned to the service. */
|
---|
| 1927 | const char *pszServiceName;
|
---|
[75495] | 1928 | /** The user mode VM handle (for statistics and such). */
|
---|
| 1929 | PUVM pUVM;
|
---|
[75853] | 1930 | /** The HGCM port on the VMMDev device (for session ID and such). */
|
---|
| 1931 | PPDMIHGCMPORT pHgcmPort;
|
---|
[1711] | 1932 | };
|
---|
[1080] | 1933 |
|
---|
[1711] | 1934 | class HGCMMsgMainHostCall: public HGCMMsgCore
|
---|
| 1935 | {
|
---|
| 1936 | public:
|
---|
| 1937 | /* Which service to call. */
|
---|
| 1938 | const char *pszServiceName;
|
---|
| 1939 | /* Function number. */
|
---|
| 1940 | uint32_t u32Function;
|
---|
| 1941 | /* Number of the function parameters. */
|
---|
| 1942 | uint32_t cParms;
|
---|
| 1943 | /* Pointer to array of the function parameters. */
|
---|
| 1944 | VBOXHGCMSVCPARM *paParms;
|
---|
| 1945 | };
|
---|
[1080] | 1946 |
|
---|
[1711] | 1947 | class HGCMMsgMainLoadSaveState: public HGCMMsgCore
|
---|
| 1948 | {
|
---|
| 1949 | public:
|
---|
[75853] | 1950 | /** Saved state handle. */
|
---|
[1711] | 1951 | PSSMHANDLE pSSM;
|
---|
[75853] | 1952 | /** The HGCM saved state version being loaded (ignore for save). */
|
---|
| 1953 | uint32_t uVersion;
|
---|
[1711] | 1954 | };
|
---|
[1080] | 1955 |
|
---|
[1711] | 1956 | class HGCMMsgMainReset: public HGCMMsgCore
|
---|
| 1957 | {
|
---|
[75991] | 1958 | public:
|
---|
| 1959 | /** Set if this is actually a shutdown and not a VM reset. */
|
---|
| 1960 | bool fForShutdown;
|
---|
[1711] | 1961 | };
|
---|
[1080] | 1962 |
|
---|
[1711] | 1963 | class HGCMMsgMainQuit: public HGCMMsgCore
|
---|
| 1964 | {
|
---|
[75574] | 1965 | public:
|
---|
| 1966 | /** Whether UVM has gone invalid already or not. */
|
---|
| 1967 | bool fUvmIsInvalid;
|
---|
[1711] | 1968 | };
|
---|
[1080] | 1969 |
|
---|
[2386] | 1970 | class HGCMMsgMainRegisterExtension: public HGCMMsgCore
|
---|
| 1971 | {
|
---|
| 1972 | public:
|
---|
[75574] | 1973 | /** Returned handle to be used in HGCMMsgMainUnregisterExtension. */
|
---|
[2386] | 1974 | HGCMSVCEXTHANDLE *pHandle;
|
---|
[75574] | 1975 | /** Name of the service. */
|
---|
[2386] | 1976 | const char *pszServiceName;
|
---|
[75574] | 1977 | /** The extension entry point. */
|
---|
[2386] | 1978 | PFNHGCMSVCEXT pfnExtension;
|
---|
[75574] | 1979 | /** The extension pointer. */
|
---|
[2386] | 1980 | void *pvExtension;
|
---|
| 1981 | };
|
---|
| 1982 |
|
---|
| 1983 | class HGCMMsgMainUnregisterExtension: public HGCMMsgCore
|
---|
| 1984 | {
|
---|
| 1985 | public:
|
---|
| 1986 | /* Handle of the registered extension. */
|
---|
| 1987 | HGCMSVCEXTHANDLE handle;
|
---|
| 1988 | };
|
---|
| 1989 |
|
---|
[75969] | 1990 | class HGCMMsgMainBroadcastNotify: public HGCMMsgCore
|
---|
| 1991 | {
|
---|
| 1992 | public:
|
---|
| 1993 | /** The notification event. */
|
---|
| 1994 | HGCMNOTIFYEVENT enmEvent;
|
---|
| 1995 | };
|
---|
| 1996 |
|
---|
[33146] | 1997 |
|
---|
[1711] | 1998 | static HGCMMsgCore *hgcmMainMessageAlloc (uint32_t u32MsgId)
|
---|
[1080] | 1999 | {
|
---|
[1711] | 2000 | switch (u32MsgId)
|
---|
[1080] | 2001 | {
|
---|
[51092] | 2002 | case HGCM_MSG_CONNECT: return new HGCMMsgMainConnect();
|
---|
| 2003 | case HGCM_MSG_DISCONNECT: return new HGCMMsgMainDisconnect();
|
---|
| 2004 | case HGCM_MSG_LOAD: return new HGCMMsgMainLoad();
|
---|
| 2005 | case HGCM_MSG_HOSTCALL: return new HGCMMsgMainHostCall();
|
---|
[6985] | 2006 | case HGCM_MSG_LOADSTATE:
|
---|
[51092] | 2007 | case HGCM_MSG_SAVESTATE: return new HGCMMsgMainLoadSaveState();
|
---|
| 2008 | case HGCM_MSG_RESET: return new HGCMMsgMainReset();
|
---|
| 2009 | case HGCM_MSG_QUIT: return new HGCMMsgMainQuit();
|
---|
| 2010 | case HGCM_MSG_REGEXT: return new HGCMMsgMainRegisterExtension();
|
---|
| 2011 | case HGCM_MSG_UNREGEXT: return new HGCMMsgMainUnregisterExtension();
|
---|
[75969] | 2012 | case HGCM_MSG_BRD_NOTIFY: return new HGCMMsgMainBroadcastNotify();
|
---|
[33146] | 2013 |
|
---|
[1711] | 2014 | default:
|
---|
| 2015 | AssertReleaseMsgFailed(("Msg id = %08X\n", u32MsgId));
|
---|
[1080] | 2016 | }
|
---|
| 2017 |
|
---|
[1711] | 2018 | return NULL;
|
---|
[1080] | 2019 | }
|
---|
| 2020 |
|
---|
[1711] | 2021 |
|
---|
| 2022 | /* The main HGCM thread handler. */
|
---|
[75539] | 2023 | static DECLCALLBACK(void) hgcmThread(HGCMThread *pThread, void *pvUser)
|
---|
[1] | 2024 | {
|
---|
[75539] | 2025 | LogFlowFunc(("pThread = %p, pvUser = %p\n", pThread, pvUser));
|
---|
[1711] | 2026 |
|
---|
[1] | 2027 | NOREF(pvUser);
|
---|
| 2028 |
|
---|
[1711] | 2029 | bool fQuit = false;
|
---|
[1] | 2030 |
|
---|
[1711] | 2031 | while (!fQuit)
|
---|
[1] | 2032 | {
|
---|
[1711] | 2033 | HGCMMsgCore *pMsgCore;
|
---|
[75539] | 2034 | int rc = hgcmMsgGet(pThread, &pMsgCore);
|
---|
[1] | 2035 |
|
---|
[21878] | 2036 | if (RT_FAILURE(rc))
|
---|
[1] | 2037 | {
|
---|
[1711] | 2038 | /* The error means some serious unrecoverable problem in the hgcmMsg/hgcmThread layer. */
|
---|
[51092] | 2039 | AssertMsgFailed(("%Rrc\n", rc));
|
---|
[1711] | 2040 | break;
|
---|
[1] | 2041 | }
|
---|
| 2042 |
|
---|
[51092] | 2043 | uint32_t u32MsgId = pMsgCore->MsgId();
|
---|
[1577] | 2044 |
|
---|
| 2045 | switch (u32MsgId)
|
---|
[1] | 2046 | {
|
---|
[1711] | 2047 | case HGCM_MSG_CONNECT:
|
---|
[1] | 2048 | {
|
---|
[1711] | 2049 | HGCMMsgMainConnect *pMsg = (HGCMMsgMainConnect *)pMsgCore;
|
---|
[1] | 2050 |
|
---|
[1711] | 2051 | LogFlowFunc(("HGCM_MSG_CONNECT pszServiceName %s, pu32ClientId %p\n",
|
---|
| 2052 | pMsg->pszServiceName, pMsg->pu32ClientId));
|
---|
[1] | 2053 |
|
---|
[1711] | 2054 | /* Resolve the service name to the pointer to service instance.
|
---|
[1] | 2055 | */
|
---|
[1711] | 2056 | HGCMService *pService;
|
---|
[51092] | 2057 | rc = HGCMService::ResolveService(&pService, pMsg->pszServiceName);
|
---|
[1] | 2058 |
|
---|
[21878] | 2059 | if (RT_SUCCESS(rc))
|
---|
[1] | 2060 | {
|
---|
[1711] | 2061 | /* Call the service instance method. */
|
---|
[75773] | 2062 | rc = pService->CreateAndConnectClient(pMsg->pu32ClientId,
|
---|
| 2063 | 0,
|
---|
| 2064 | pMsg->pHGCMPort->pfnGetRequestor(pMsg->pHGCMPort, pMsg->pCmd),
|
---|
| 2065 | pMsg->pHGCMPort->pfnIsCmdRestored(pMsg->pHGCMPort, pMsg->pCmd));
|
---|
[1] | 2066 |
|
---|
[1711] | 2067 | /* Release the service after resolve. */
|
---|
[51092] | 2068 | pService->ReleaseService();
|
---|
[1] | 2069 | }
|
---|
| 2070 | } break;
|
---|
| 2071 |
|
---|
[1711] | 2072 | case HGCM_MSG_DISCONNECT:
|
---|
[1] | 2073 | {
|
---|
[1711] | 2074 | HGCMMsgMainDisconnect *pMsg = (HGCMMsgMainDisconnect *)pMsgCore;
|
---|
[1] | 2075 |
|
---|
[1711] | 2076 | LogFlowFunc(("HGCM_MSG_DISCONNECT u32ClientId = %d\n",
|
---|
| 2077 | pMsg->u32ClientId));
|
---|
[1] | 2078 |
|
---|
[51092] | 2079 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(pMsg->u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1] | 2080 |
|
---|
| 2081 | if (!pClient)
|
---|
| 2082 | {
|
---|
[1711] | 2083 | rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
| 2084 | break;
|
---|
[1] | 2085 | }
|
---|
| 2086 |
|
---|
[1711] | 2087 | /* The service the client belongs to. */
|
---|
| 2088 | HGCMService *pService = pClient->pService;
|
---|
[1] | 2089 |
|
---|
[1711] | 2090 | /* Call the service instance to disconnect the client. */
|
---|
[51092] | 2091 | rc = pService->DisconnectClient(pMsg->u32ClientId, false);
|
---|
[1] | 2092 |
|
---|
[51092] | 2093 | hgcmObjDereference(pClient);
|
---|
[1] | 2094 | } break;
|
---|
| 2095 |
|
---|
[1711] | 2096 | case HGCM_MSG_LOAD:
|
---|
[1] | 2097 | {
|
---|
[1711] | 2098 | HGCMMsgMainLoad *pMsg = (HGCMMsgMainLoad *)pMsgCore;
|
---|
[1] | 2099 |
|
---|
[75495] | 2100 | LogFlowFunc(("HGCM_MSG_LOAD pszServiceName = %s, pMsg->pszServiceLibrary = %s, pMsg->pUVM = %p\n",
|
---|
| 2101 | pMsg->pszServiceName, pMsg->pszServiceLibrary, pMsg->pUVM));
|
---|
[1] | 2102 |
|
---|
[75853] | 2103 | rc = HGCMService::LoadService(pMsg->pszServiceLibrary, pMsg->pszServiceName, pMsg->pUVM, pMsg->pHgcmPort);
|
---|
[1] | 2104 | } break;
|
---|
| 2105 |
|
---|
[1711] | 2106 | case HGCM_MSG_HOSTCALL:
|
---|
[1] | 2107 | {
|
---|
[1711] | 2108 | HGCMMsgMainHostCall *pMsg = (HGCMMsgMainHostCall *)pMsgCore;
|
---|
[1] | 2109 |
|
---|
[1711] | 2110 | LogFlowFunc(("HGCM_MSG_HOSTCALL pszServiceName %s, u32Function %d, cParms %d, paParms %p\n",
|
---|
| 2111 | pMsg->pszServiceName, pMsg->u32Function, pMsg->cParms, pMsg->paParms));
|
---|
[1] | 2112 |
|
---|
[1711] | 2113 | /* Resolve the service name to the pointer to service instance. */
|
---|
| 2114 | HGCMService *pService;
|
---|
[51092] | 2115 | rc = HGCMService::ResolveService(&pService, pMsg->pszServiceName);
|
---|
[1] | 2116 |
|
---|
[21878] | 2117 | if (RT_SUCCESS(rc))
|
---|
[1] | 2118 | {
|
---|
[51092] | 2119 | rc = pService->HostCall(pMsg->u32Function, pMsg->cParms, pMsg->paParms);
|
---|
[1711] | 2120 |
|
---|
[51092] | 2121 | pService->ReleaseService();
|
---|
[1] | 2122 | }
|
---|
| 2123 | } break;
|
---|
[909] | 2124 |
|
---|
[75969] | 2125 | case HGCM_MSG_BRD_NOTIFY:
|
---|
| 2126 | {
|
---|
| 2127 | HGCMMsgMainBroadcastNotify *pMsg = (HGCMMsgMainBroadcastNotify *)pMsgCore;
|
---|
| 2128 |
|
---|
| 2129 | LogFlowFunc(("HGCM_MSG_BRD_NOTIFY enmEvent=%d\n", pMsg->enmEvent));
|
---|
| 2130 |
|
---|
| 2131 | HGCMService::BroadcastNotify(pMsg->enmEvent);
|
---|
| 2132 | } break;
|
---|
| 2133 |
|
---|
[1711] | 2134 | case HGCM_MSG_RESET:
|
---|
[1385] | 2135 | {
|
---|
[1711] | 2136 | LogFlowFunc(("HGCM_MSG_RESET\n"));
|
---|
[1385] | 2137 |
|
---|
[51092] | 2138 | HGCMService::Reset();
|
---|
[75969] | 2139 |
|
---|
[75991] | 2140 | HGCMMsgMainReset *pMsg = (HGCMMsgMainReset *)pMsgCore;
|
---|
| 2141 | if (!pMsg->fForShutdown)
|
---|
| 2142 | HGCMService::BroadcastNotify(HGCMNOTIFYEVENT_RESET);
|
---|
[1385] | 2143 | } break;
|
---|
| 2144 |
|
---|
[1711] | 2145 | case HGCM_MSG_LOADSTATE:
|
---|
[1681] | 2146 | {
|
---|
[1711] | 2147 | HGCMMsgMainLoadSaveState *pMsg = (HGCMMsgMainLoadSaveState *)pMsgCore;
|
---|
[1681] | 2148 |
|
---|
[1711] | 2149 | LogFlowFunc(("HGCM_MSG_LOADSTATE\n"));
|
---|
[1681] | 2150 |
|
---|
[75853] | 2151 | rc = HGCMService::LoadState(pMsg->pSSM, pMsg->uVersion);
|
---|
[1681] | 2152 | } break;
|
---|
| 2153 |
|
---|
[1711] | 2154 | case HGCM_MSG_SAVESTATE:
|
---|
[1681] | 2155 | {
|
---|
[1711] | 2156 | HGCMMsgMainLoadSaveState *pMsg = (HGCMMsgMainLoadSaveState *)pMsgCore;
|
---|
[1681] | 2157 |
|
---|
[1711] | 2158 | LogFlowFunc(("HGCM_MSG_SAVESTATE\n"));
|
---|
[1681] | 2159 |
|
---|
[51092] | 2160 | rc = HGCMService::SaveState(pMsg->pSSM);
|
---|
[1681] | 2161 | } break;
|
---|
[1711] | 2162 |
|
---|
| 2163 | case HGCM_MSG_QUIT:
|
---|
| 2164 | {
|
---|
[75574] | 2165 | HGCMMsgMainQuit *pMsg = (HGCMMsgMainQuit *)pMsgCore;
|
---|
[1711] | 2166 | LogFlowFunc(("HGCM_MSG_QUIT\n"));
|
---|
| 2167 |
|
---|
[75574] | 2168 | HGCMService::UnloadAll(pMsg->fUvmIsInvalid);
|
---|
[1711] | 2169 |
|
---|
| 2170 | fQuit = true;
|
---|
| 2171 | } break;
|
---|
| 2172 |
|
---|
[2386] | 2173 | case HGCM_MSG_REGEXT:
|
---|
| 2174 | {
|
---|
| 2175 | HGCMMsgMainRegisterExtension *pMsg = (HGCMMsgMainRegisterExtension *)pMsgCore;
|
---|
[6985] | 2176 |
|
---|
[2386] | 2177 | LogFlowFunc(("HGCM_MSG_REGEXT\n"));
|
---|
[6985] | 2178 |
|
---|
[2386] | 2179 | /* Allocate the handle data. */
|
---|
[51092] | 2180 | HGCMSVCEXTHANDLE handle = (HGCMSVCEXTHANDLE)RTMemAllocZ(sizeof(struct _HGCMSVCEXTHANDLEDATA)
|
---|
| 2181 | + strlen(pMsg->pszServiceName)
|
---|
| 2182 | + sizeof(char));
|
---|
[6985] | 2183 |
|
---|
[2386] | 2184 | if (handle == NULL)
|
---|
| 2185 | {
|
---|
| 2186 | rc = VERR_NO_MEMORY;
|
---|
| 2187 | }
|
---|
| 2188 | else
|
---|
| 2189 | {
|
---|
[51092] | 2190 | handle->pszServiceName = (char *)((uint8_t *)handle + sizeof(struct _HGCMSVCEXTHANDLEDATA));
|
---|
| 2191 | strcpy(handle->pszServiceName, pMsg->pszServiceName);
|
---|
[6985] | 2192 |
|
---|
[2386] | 2193 | HGCMService *pService;
|
---|
[51092] | 2194 | rc = HGCMService::ResolveService(&pService, handle->pszServiceName);
|
---|
[2386] | 2195 |
|
---|
[21878] | 2196 | if (RT_SUCCESS(rc))
|
---|
[2386] | 2197 | {
|
---|
[51092] | 2198 | pService->RegisterExtension(handle, pMsg->pfnExtension, pMsg->pvExtension);
|
---|
[2386] | 2199 |
|
---|
[51092] | 2200 | pService->ReleaseService();
|
---|
[2386] | 2201 | }
|
---|
[6985] | 2202 |
|
---|
[21878] | 2203 | if (RT_FAILURE(rc))
|
---|
[2386] | 2204 | {
|
---|
[51092] | 2205 | RTMemFree(handle);
|
---|
[2386] | 2206 | }
|
---|
| 2207 | else
|
---|
| 2208 | {
|
---|
| 2209 | *pMsg->pHandle = handle;
|
---|
| 2210 | }
|
---|
| 2211 | }
|
---|
| 2212 | } break;
|
---|
| 2213 |
|
---|
| 2214 | case HGCM_MSG_UNREGEXT:
|
---|
| 2215 | {
|
---|
| 2216 | HGCMMsgMainUnregisterExtension *pMsg = (HGCMMsgMainUnregisterExtension *)pMsgCore;
|
---|
| 2217 |
|
---|
| 2218 | LogFlowFunc(("HGCM_MSG_UNREGEXT\n"));
|
---|
| 2219 |
|
---|
| 2220 | HGCMService *pService;
|
---|
[51092] | 2221 | rc = HGCMService::ResolveService(&pService, pMsg->handle->pszServiceName);
|
---|
[2386] | 2222 |
|
---|
[21878] | 2223 | if (RT_SUCCESS(rc))
|
---|
[2386] | 2224 | {
|
---|
[51092] | 2225 | pService->UnregisterExtension(pMsg->handle);
|
---|
[2386] | 2226 |
|
---|
[51092] | 2227 | pService->ReleaseService();
|
---|
[2386] | 2228 | }
|
---|
[6985] | 2229 |
|
---|
[51092] | 2230 | RTMemFree(pMsg->handle);
|
---|
[2386] | 2231 | } break;
|
---|
| 2232 |
|
---|
[1] | 2233 | default:
|
---|
| 2234 | {
|
---|
[1711] | 2235 | AssertMsgFailed(("hgcmThread: Unsupported message number %08X!!!\n", u32MsgId));
|
---|
[1] | 2236 | rc = VERR_NOT_SUPPORTED;
|
---|
| 2237 | } break;
|
---|
| 2238 | }
|
---|
| 2239 |
|
---|
[1711] | 2240 | /* Complete the message processing. */
|
---|
[51092] | 2241 | hgcmMsgComplete(pMsgCore, rc);
|
---|
[1711] | 2242 |
|
---|
[13837] | 2243 | LogFlowFunc(("message processed %Rrc\n", rc));
|
---|
[1] | 2244 | }
|
---|
| 2245 | }
|
---|
| 2246 |
|
---|
[1711] | 2247 |
|
---|
| 2248 | /*
|
---|
| 2249 | * The HGCM API.
|
---|
| 2250 | */
|
---|
| 2251 |
|
---|
[75539] | 2252 | /** The main hgcm thread. */
|
---|
| 2253 | static HGCMThread *g_pHgcmThread = 0;
|
---|
[1] | 2254 |
|
---|
| 2255 | /*
|
---|
[1711] | 2256 | * Public HGCM functions.
|
---|
| 2257 | *
|
---|
| 2258 | * hgcmGuest* - called as a result of the guest HGCM requests.
|
---|
| 2259 | * hgcmHost* - called by the host.
|
---|
[1] | 2260 | */
|
---|
[1711] | 2261 |
|
---|
| 2262 | /* Load a HGCM service from the specified library.
|
---|
| 2263 | * Assign the specified name to the service.
|
---|
| 2264 | *
|
---|
[6792] | 2265 | * @param pszServiceLibrary The library to be loaded.
|
---|
[1711] | 2266 | * @param pszServiceName The name to be assigned to the service.
|
---|
[75495] | 2267 | * @param pUVM The user mode VM handle (for statistics and such).
|
---|
[75853] | 2268 | * @param pHgcmPort The HGCM port on the VMMDev device (for session ID and such).
|
---|
[1711] | 2269 | * @return VBox rc.
|
---|
| 2270 | */
|
---|
[51092] | 2271 | int HGCMHostLoad(const char *pszServiceLibrary,
|
---|
[75495] | 2272 | const char *pszServiceName,
|
---|
[75853] | 2273 | PUVM pUVM,
|
---|
| 2274 | PPDMIHGCMPORT pHgcmPort)
|
---|
[1] | 2275 | {
|
---|
[6792] | 2276 | LogFlowFunc(("lib = %s, name = %s\n", pszServiceLibrary, pszServiceName));
|
---|
[1] | 2277 |
|
---|
[6792] | 2278 | if (!pszServiceLibrary || !pszServiceName)
|
---|
[1] | 2279 | {
|
---|
| 2280 | return VERR_INVALID_PARAMETER;
|
---|
| 2281 | }
|
---|
| 2282 |
|
---|
[1711] | 2283 | /* Forward the request to the main hgcm thread. */
|
---|
[75541] | 2284 | HGCMMsgCore *pCoreMsg;
|
---|
| 2285 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_LOAD, hgcmMainMessageAlloc);
|
---|
[1] | 2286 |
|
---|
[13835] | 2287 | if (RT_SUCCESS(rc))
|
---|
[1] | 2288 | {
|
---|
[1711] | 2289 | /* Initialize the message. Since the message is synchronous, use the supplied pointers. */
|
---|
[75541] | 2290 | HGCMMsgMainLoad *pMsg = (HGCMMsgMainLoad *)pCoreMsg;
|
---|
[1] | 2291 |
|
---|
[6792] | 2292 | pMsg->pszServiceLibrary = pszServiceLibrary;
|
---|
[1711] | 2293 | pMsg->pszServiceName = pszServiceName;
|
---|
[75495] | 2294 | pMsg->pUVM = pUVM;
|
---|
[75853] | 2295 | pMsg->pHgcmPort = pHgcmPort;
|
---|
[1] | 2296 |
|
---|
[75541] | 2297 | rc = hgcmMsgSend(pMsg);
|
---|
[1] | 2298 | }
|
---|
| 2299 |
|
---|
[13837] | 2300 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 2301 | return rc;
|
---|
| 2302 | }
|
---|
| 2303 |
|
---|
[2386] | 2304 | /* Register a HGCM service extension.
|
---|
| 2305 | *
|
---|
| 2306 | * @param pHandle Returned handle for the registered extension.
|
---|
| 2307 | * @param pszServiceName The name of the service.
|
---|
[28200] | 2308 | * @param pfnExtension The extension entry point (callback).
|
---|
| 2309 | * @param pvExtension The extension pointer.
|
---|
[2386] | 2310 | * @return VBox rc.
|
---|
| 2311 | */
|
---|
[51092] | 2312 | int HGCMHostRegisterServiceExtension(HGCMSVCEXTHANDLE *pHandle,
|
---|
| 2313 | const char *pszServiceName,
|
---|
| 2314 | PFNHGCMSVCEXT pfnExtension,
|
---|
| 2315 | void *pvExtension)
|
---|
[2386] | 2316 | {
|
---|
| 2317 | LogFlowFunc(("pHandle = %p, name = %s, pfn = %p, rv = %p\n", pHandle, pszServiceName, pfnExtension, pvExtension));
|
---|
[1711] | 2318 |
|
---|
[2386] | 2319 | if (!pHandle || !pszServiceName || !pfnExtension)
|
---|
| 2320 | {
|
---|
| 2321 | return VERR_INVALID_PARAMETER;
|
---|
| 2322 | }
|
---|
| 2323 |
|
---|
| 2324 | /* Forward the request to the main hgcm thread. */
|
---|
[75541] | 2325 | HGCMMsgCore *pCoreMsg;
|
---|
| 2326 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_REGEXT, hgcmMainMessageAlloc);
|
---|
[2386] | 2327 |
|
---|
[13835] | 2328 | if (RT_SUCCESS(rc))
|
---|
[2386] | 2329 | {
|
---|
| 2330 | /* Initialize the message. Since the message is synchronous, use the supplied pointers. */
|
---|
[75541] | 2331 | HGCMMsgMainRegisterExtension *pMsg = (HGCMMsgMainRegisterExtension *)pCoreMsg;
|
---|
[2386] | 2332 |
|
---|
| 2333 | pMsg->pHandle = pHandle;
|
---|
| 2334 | pMsg->pszServiceName = pszServiceName;
|
---|
| 2335 | pMsg->pfnExtension = pfnExtension;
|
---|
| 2336 | pMsg->pvExtension = pvExtension;
|
---|
| 2337 |
|
---|
[75541] | 2338 | rc = hgcmMsgSend(pMsg);
|
---|
[2386] | 2339 | }
|
---|
| 2340 |
|
---|
[13837] | 2341 | LogFlowFunc(("*pHandle = %p, rc = %Rrc\n", *pHandle, rc));
|
---|
[2386] | 2342 | return rc;
|
---|
| 2343 | }
|
---|
| 2344 |
|
---|
[51092] | 2345 | void HGCMHostUnregisterServiceExtension(HGCMSVCEXTHANDLE handle)
|
---|
[2386] | 2346 | {
|
---|
| 2347 | LogFlowFunc(("handle = %p\n", handle));
|
---|
| 2348 |
|
---|
| 2349 | /* Forward the request to the main hgcm thread. */
|
---|
[75541] | 2350 | HGCMMsgCore *pCoreMsg;
|
---|
| 2351 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_UNREGEXT, hgcmMainMessageAlloc);
|
---|
[2386] | 2352 |
|
---|
[13835] | 2353 | if (RT_SUCCESS(rc))
|
---|
[2386] | 2354 | {
|
---|
| 2355 | /* Initialize the message. */
|
---|
[75541] | 2356 | HGCMMsgMainUnregisterExtension *pMsg = (HGCMMsgMainUnregisterExtension *)pCoreMsg;
|
---|
[2386] | 2357 |
|
---|
| 2358 | pMsg->handle = handle;
|
---|
| 2359 |
|
---|
[75541] | 2360 | rc = hgcmMsgSend(pMsg);
|
---|
[2386] | 2361 | }
|
---|
| 2362 |
|
---|
[13837] | 2363 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[2386] | 2364 | return;
|
---|
| 2365 | }
|
---|
| 2366 |
|
---|
[1711] | 2367 | /* Find a service and inform it about a client connection, create a client handle.
|
---|
| 2368 | *
|
---|
| 2369 | * @param pHGCMPort The port to be used for completion confirmation.
|
---|
| 2370 | * @param pCmd The VBox HGCM context.
|
---|
| 2371 | * @param pszServiceName The name of the service to be connected to.
|
---|
| 2372 | * @param pu32ClientId Where the store the created client handle.
|
---|
| 2373 | * @return VBox rc.
|
---|
[1] | 2374 | */
|
---|
[51092] | 2375 | int HGCMGuestConnect(PPDMIHGCMPORT pHGCMPort,
|
---|
| 2376 | PVBOXHGCMCMD pCmd,
|
---|
| 2377 | const char *pszServiceName,
|
---|
| 2378 | uint32_t *pu32ClientId)
|
---|
[1] | 2379 | {
|
---|
[1711] | 2380 | LogFlowFunc(("pHGCMPort = %p, pCmd = %p, name = %s, pu32ClientId = %p\n",
|
---|
| 2381 | pHGCMPort, pCmd, pszServiceName, pu32ClientId));
|
---|
[1] | 2382 |
|
---|
[1711] | 2383 | if (pHGCMPort == NULL || pCmd == NULL || pszServiceName == NULL || pu32ClientId == NULL)
|
---|
[1] | 2384 | {
|
---|
| 2385 | return VERR_INVALID_PARAMETER;
|
---|
| 2386 | }
|
---|
| 2387 |
|
---|
[1711] | 2388 | /* Forward the request to the main hgcm thread. */
|
---|
[75541] | 2389 | HGCMMsgCore *pCoreMsg;
|
---|
| 2390 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_CONNECT, hgcmMainMessageAlloc);
|
---|
[1] | 2391 |
|
---|
[13835] | 2392 | if (RT_SUCCESS(rc))
|
---|
[1] | 2393 | {
|
---|
[1711] | 2394 | /* Initialize the message. Since 'pszServiceName' and 'pu32ClientId'
|
---|
| 2395 | * will not be deallocated by the caller until the message is completed,
|
---|
| 2396 | * use the supplied pointers.
|
---|
| 2397 | */
|
---|
[75541] | 2398 | HGCMMsgMainConnect *pMsg = (HGCMMsgMainConnect *)pCoreMsg;
|
---|
[1] | 2399 |
|
---|
[1711] | 2400 | pMsg->pHGCMPort = pHGCMPort;
|
---|
| 2401 | pMsg->pCmd = pCmd;
|
---|
| 2402 | pMsg->pszServiceName = pszServiceName;
|
---|
| 2403 | pMsg->pu32ClientId = pu32ClientId;
|
---|
[1] | 2404 |
|
---|
[75541] | 2405 | rc = hgcmMsgPost(pMsg, hgcmMsgCompletionCallback);
|
---|
[1] | 2406 | }
|
---|
| 2407 |
|
---|
[13837] | 2408 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 2409 | return rc;
|
---|
| 2410 | }
|
---|
| 2411 |
|
---|
[1711] | 2412 | /* Tell a service that the client is disconnecting, destroy the client handle.
|
---|
| 2413 | *
|
---|
| 2414 | * @param pHGCMPort The port to be used for completion confirmation.
|
---|
| 2415 | * @param pCmd The VBox HGCM context.
|
---|
| 2416 | * @param u32ClientId The client handle to be disconnected and deleted.
|
---|
| 2417 | * @return VBox rc.
|
---|
| 2418 | */
|
---|
[51092] | 2419 | int HGCMGuestDisconnect(PPDMIHGCMPORT pHGCMPort,
|
---|
| 2420 | PVBOXHGCMCMD pCmd,
|
---|
| 2421 | uint32_t u32ClientId)
|
---|
[1681] | 2422 | {
|
---|
[1711] | 2423 | LogFlowFunc(("pHGCMPort = %p, pCmd = %p, u32ClientId = %d\n",
|
---|
| 2424 | pHGCMPort, pCmd, u32ClientId));
|
---|
[1681] | 2425 |
|
---|
[1711] | 2426 | if (!pHGCMPort || !pCmd || !u32ClientId)
|
---|
| 2427 | {
|
---|
| 2428 | return VERR_INVALID_PARAMETER;
|
---|
| 2429 | }
|
---|
| 2430 |
|
---|
| 2431 | /* Forward the request to the main hgcm thread. */
|
---|
[75541] | 2432 | HGCMMsgCore *pCoreMsg;
|
---|
| 2433 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_DISCONNECT, hgcmMainMessageAlloc);
|
---|
[1681] | 2434 |
|
---|
[13835] | 2435 | if (RT_SUCCESS(rc))
|
---|
[1681] | 2436 | {
|
---|
[1711] | 2437 | /* Initialize the message. */
|
---|
[75541] | 2438 | HGCMMsgMainDisconnect *pMsg = (HGCMMsgMainDisconnect *)pCoreMsg;
|
---|
[1681] | 2439 |
|
---|
[1711] | 2440 | pMsg->pCmd = pCmd;
|
---|
| 2441 | pMsg->pHGCMPort = pHGCMPort;
|
---|
| 2442 | pMsg->u32ClientId = u32ClientId;
|
---|
[1681] | 2443 |
|
---|
[75541] | 2444 | rc = hgcmMsgPost(pMsg, hgcmMsgCompletionCallback);
|
---|
[1681] | 2445 | }
|
---|
| 2446 |
|
---|
[13837] | 2447 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1681] | 2448 | return rc;
|
---|
| 2449 | }
|
---|
| 2450 |
|
---|
[75853] | 2451 | /** Helper to send either HGCM_MSG_SAVESTATE or HGCM_MSG_LOADSTATE messages to the main HGCM thread.
|
---|
[1711] | 2452 | *
|
---|
| 2453 | * @param pSSM The SSM handle.
|
---|
[75853] | 2454 | * @param idMsg The message to be sent: HGCM_MSG_SAVESTATE or HGCM_MSG_LOADSTATE.
|
---|
| 2455 | * @param uVersion The state version being loaded.
|
---|
[1711] | 2456 | * @return VBox rc.
|
---|
| 2457 | */
|
---|
[75853] | 2458 | static int hgcmHostLoadSaveState(PSSMHANDLE pSSM, uint32_t idMsg, uint32_t uVersion)
|
---|
[1681] | 2459 | {
|
---|
[75853] | 2460 | LogFlowFunc(("pSSM = %p, idMsg = %d, uVersion = uVersion\n", pSSM, idMsg));
|
---|
[1681] | 2461 |
|
---|
[75541] | 2462 | HGCMMsgCore *pCoreMsg;
|
---|
[75853] | 2463 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, idMsg, hgcmMainMessageAlloc);
|
---|
[906] | 2464 |
|
---|
[13835] | 2465 | if (RT_SUCCESS(rc))
|
---|
[906] | 2466 | {
|
---|
[75541] | 2467 | HGCMMsgMainLoadSaveState *pMsg = (HGCMMsgMainLoadSaveState *)pCoreMsg;
|
---|
[1711] | 2468 | AssertRelease(pMsg);
|
---|
[906] | 2469 |
|
---|
[1711] | 2470 | pMsg->pSSM = pSSM;
|
---|
[75853] | 2471 | pMsg->uVersion = uVersion;
|
---|
[906] | 2472 |
|
---|
[75541] | 2473 | rc = hgcmMsgSend(pMsg);
|
---|
[1711] | 2474 | }
|
---|
[906] | 2475 |
|
---|
[13837] | 2476 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[906] | 2477 | return rc;
|
---|
| 2478 | }
|
---|
| 2479 |
|
---|
[75853] | 2480 | /** Save the state of services.
|
---|
[1711] | 2481 | *
|
---|
| 2482 | * @param pSSM The SSM handle.
|
---|
| 2483 | * @return VBox rc.
|
---|
| 2484 | */
|
---|
[51092] | 2485 | int HGCMHostSaveState(PSSMHANDLE pSSM)
|
---|
[906] | 2486 | {
|
---|
[75853] | 2487 | return hgcmHostLoadSaveState(pSSM, HGCM_MSG_SAVESTATE, HGCM_SAVED_STATE_VERSION);
|
---|
[1711] | 2488 | }
|
---|
[906] | 2489 |
|
---|
[75853] | 2490 | /** Load the state of services.
|
---|
[1711] | 2491 | *
|
---|
| 2492 | * @param pSSM The SSM handle.
|
---|
[75853] | 2493 | * @param uVersion The state version being loaded.
|
---|
[1711] | 2494 | * @return VBox rc.
|
---|
| 2495 | */
|
---|
[75853] | 2496 | int HGCMHostLoadState(PSSMHANDLE pSSM, uint32_t uVersion)
|
---|
[1711] | 2497 | {
|
---|
[75853] | 2498 | return hgcmHostLoadSaveState(pSSM, HGCM_MSG_LOADSTATE, uVersion);
|
---|
[906] | 2499 | }
|
---|
| 2500 |
|
---|
[75990] | 2501 | /** The guest calls the service.
|
---|
[1711] | 2502 | *
|
---|
| 2503 | * @param pHGCMPort The port to be used for completion confirmation.
|
---|
| 2504 | * @param pCmd The VBox HGCM context.
|
---|
[75990] | 2505 | * @param u32ClientId The client handle.
|
---|
[1711] | 2506 | * @param u32Function The function number.
|
---|
| 2507 | * @param cParms Number of parameters.
|
---|
| 2508 | * @param paParms Pointer to array of parameters.
|
---|
[75500] | 2509 | * @param tsArrival The STAM_GET_TS() value when the request arrived.
|
---|
[1711] | 2510 | * @return VBox rc.
|
---|
| 2511 | */
|
---|
[51092] | 2512 | int HGCMGuestCall(PPDMIHGCMPORT pHGCMPort,
|
---|
| 2513 | PVBOXHGCMCMD pCmd,
|
---|
| 2514 | uint32_t u32ClientId,
|
---|
| 2515 | uint32_t u32Function,
|
---|
| 2516 | uint32_t cParms,
|
---|
[75500] | 2517 | VBOXHGCMSVCPARM *paParms,
|
---|
| 2518 | uint64_t tsArrival)
|
---|
[1] | 2519 | {
|
---|
[1711] | 2520 | LogFlowFunc(("pHGCMPort = %p, pCmd = %p, u32ClientId = %d, u32Function = %d, cParms = %d, paParms = %p\n",
|
---|
| 2521 | pHGCMPort, pCmd, u32ClientId, u32Function, cParms, paParms));
|
---|
[1] | 2522 |
|
---|
[1711] | 2523 | if (!pHGCMPort || !pCmd || u32ClientId == 0)
|
---|
[1] | 2524 | {
|
---|
| 2525 | return VERR_INVALID_PARAMETER;
|
---|
| 2526 | }
|
---|
| 2527 |
|
---|
[1711] | 2528 | int rc = VERR_HGCM_INVALID_CLIENT_ID;
|
---|
[1] | 2529 |
|
---|
[1711] | 2530 | /* Resolve the client handle to the client instance pointer. */
|
---|
[51092] | 2531 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(u32ClientId, HGCMOBJ_CLIENT);
|
---|
[1] | 2532 |
|
---|
[1711] | 2533 | if (pClient)
|
---|
[1] | 2534 | {
|
---|
[1711] | 2535 | AssertRelease(pClient->pService);
|
---|
[1] | 2536 |
|
---|
[1711] | 2537 | /* Forward the message to the service thread. */
|
---|
[75500] | 2538 | rc = pClient->pService->GuestCall(pHGCMPort, pCmd, u32ClientId, u32Function, cParms, paParms, tsArrival);
|
---|
[1] | 2539 |
|
---|
[51092] | 2540 | hgcmObjDereference(pClient);
|
---|
[1] | 2541 | }
|
---|
| 2542 |
|
---|
[13837] | 2543 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 2544 | return rc;
|
---|
| 2545 | }
|
---|
| 2546 |
|
---|
[75990] | 2547 | /** The guest cancelled a request (call, connect, disconnect)
|
---|
| 2548 | *
|
---|
| 2549 | * @param pHGCMPort The port to be used for completion confirmation.
|
---|
| 2550 | * @param pCmd The VBox HGCM context.
|
---|
| 2551 | * @param idClient The client handle.
|
---|
| 2552 | */
|
---|
| 2553 | void HGCMGuestCancelled(PPDMIHGCMPORT pHGCMPort, PVBOXHGCMCMD pCmd, uint32_t idClient)
|
---|
| 2554 | {
|
---|
| 2555 | LogFlowFunc(("pHGCMPort = %p, pCmd = %p, idClient = %d\n", pHGCMPort, pCmd, idClient));
|
---|
| 2556 | AssertReturnVoid(pHGCMPort);
|
---|
| 2557 | AssertReturnVoid(pCmd);
|
---|
| 2558 | AssertReturnVoid(idClient != 0);
|
---|
| 2559 |
|
---|
| 2560 | /* Resolve the client handle to the client instance pointer. */
|
---|
| 2561 | HGCMClient *pClient = (HGCMClient *)hgcmObjReference(idClient, HGCMOBJ_CLIENT);
|
---|
| 2562 |
|
---|
| 2563 | if (pClient)
|
---|
| 2564 | {
|
---|
| 2565 | AssertRelease(pClient->pService);
|
---|
| 2566 |
|
---|
| 2567 | /* Forward the message to the service thread. */
|
---|
| 2568 | pClient->pService->GuestCancelled(pHGCMPort, pCmd, idClient);
|
---|
| 2569 |
|
---|
| 2570 | hgcmObjDereference(pClient);
|
---|
| 2571 | }
|
---|
| 2572 |
|
---|
| 2573 | LogFlowFunc(("returns\n"));
|
---|
| 2574 | }
|
---|
| 2575 |
|
---|
[75969] | 2576 | /** The host calls the service.
|
---|
[1711] | 2577 | *
|
---|
| 2578 | * @param pszServiceName The service name to be called.
|
---|
| 2579 | * @param u32Function The function number.
|
---|
| 2580 | * @param cParms Number of parameters.
|
---|
| 2581 | * @param paParms Pointer to array of parameters.
|
---|
| 2582 | * @return VBox rc.
|
---|
[1] | 2583 | */
|
---|
[51092] | 2584 | int HGCMHostCall(const char *pszServiceName,
|
---|
| 2585 | uint32_t u32Function,
|
---|
| 2586 | uint32_t cParms,
|
---|
| 2587 | VBOXHGCMSVCPARM *paParms)
|
---|
[1] | 2588 | {
|
---|
[1711] | 2589 | LogFlowFunc(("name = %s, u32Function = %d, cParms = %d, paParms = %p\n",
|
---|
| 2590 | pszServiceName, u32Function, cParms, paParms));
|
---|
[1] | 2591 |
|
---|
[1711] | 2592 | if (!pszServiceName)
|
---|
[1] | 2593 | {
|
---|
| 2594 | return VERR_INVALID_PARAMETER;
|
---|
| 2595 | }
|
---|
| 2596 |
|
---|
[1711] | 2597 | /* Host calls go to main HGCM thread that resolves the service name to the
|
---|
| 2598 | * service instance pointer and then, using the service pointer, forwards
|
---|
| 2599 | * the message to the service thread.
|
---|
| 2600 | * So it is slow but host calls are intended mostly for configuration and
|
---|
| 2601 | * other non-time-critical functions.
|
---|
| 2602 | */
|
---|
[75541] | 2603 | HGCMMsgCore *pCoreMsg;
|
---|
| 2604 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_HOSTCALL, hgcmMainMessageAlloc);
|
---|
[1711] | 2605 |
|
---|
[13835] | 2606 | if (RT_SUCCESS(rc))
|
---|
[1] | 2607 | {
|
---|
[75541] | 2608 | HGCMMsgMainHostCall *pMsg = (HGCMMsgMainHostCall *)pCoreMsg;
|
---|
[6985] | 2609 |
|
---|
[1711] | 2610 | pMsg->pszServiceName = (char *)pszServiceName;
|
---|
| 2611 | pMsg->u32Function = u32Function;
|
---|
| 2612 | pMsg->cParms = cParms;
|
---|
| 2613 | pMsg->paParms = paParms;
|
---|
[1] | 2614 |
|
---|
[75541] | 2615 | rc = hgcmMsgSend(pMsg);
|
---|
[1711] | 2616 | }
|
---|
[1] | 2617 |
|
---|
[13837] | 2618 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 2619 | return rc;
|
---|
| 2620 | }
|
---|
| 2621 |
|
---|
[75969] | 2622 | /** Posts a notification event to all services.
|
---|
| 2623 | *
|
---|
| 2624 | * @param enmEvent The notification event.
|
---|
| 2625 | * @return VBox rc.
|
---|
| 2626 | */
|
---|
| 2627 | int HGCMBroadcastEvent(HGCMNOTIFYEVENT enmEvent)
|
---|
| 2628 | {
|
---|
| 2629 | LogFlowFunc(("enmEvent=%d\n", enmEvent));
|
---|
| 2630 |
|
---|
| 2631 | HGCMMsgCore *pCoreMsg;
|
---|
| 2632 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pCoreMsg, HGCM_MSG_BRD_NOTIFY, hgcmMainMessageAlloc);
|
---|
| 2633 |
|
---|
| 2634 | if (RT_SUCCESS(rc))
|
---|
| 2635 | {
|
---|
| 2636 | HGCMMsgMainBroadcastNotify *pMsg = (HGCMMsgMainBroadcastNotify *)pCoreMsg;
|
---|
| 2637 |
|
---|
| 2638 | pMsg->enmEvent = enmEvent;
|
---|
| 2639 |
|
---|
| 2640 | rc = hgcmMsgPost(pMsg, NULL);
|
---|
| 2641 | }
|
---|
| 2642 |
|
---|
| 2643 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
| 2644 | return rc;
|
---|
| 2645 | }
|
---|
| 2646 |
|
---|
| 2647 |
|
---|
[75991] | 2648 | int HGCMHostReset(bool fForShutdown)
|
---|
[1] | 2649 | {
|
---|
[1711] | 2650 | LogFlowFunc(("\n"));
|
---|
[6985] | 2651 |
|
---|
[1711] | 2652 | /* Disconnect all clients.
|
---|
| 2653 | */
|
---|
[1] | 2654 |
|
---|
[75991] | 2655 | HGCMMsgCore *pMsgCore;
|
---|
| 2656 | int rc = hgcmMsgAlloc(g_pHgcmThread, &pMsgCore, HGCM_MSG_RESET, hgcmMainMessageAlloc);
|
---|
[1] | 2657 |
|
---|
[13835] | 2658 | if (RT_SUCCESS(rc))
|
---|
[75991] | 2659 | {
|
---|
| 2660 | HGCMMsgMainReset *pMsg = (HGCMMsgMainReset *)pMsgCore;
|
---|
| 2661 |
|
---|
| 2662 | pMsg->fForShutdown = fForShutdown;
|
---|
| 2663 |
|
---|
[75541] | 2664 | rc = hgcmMsgSend(pMsg);
|
---|
[75991] | 2665 | }
|
---|
[1] | 2666 |
|
---|
[13837] | 2667 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 2668 | return rc;
|
---|
| 2669 | }
|
---|
| 2670 |
|
---|
[51092] | 2671 | int HGCMHostInit(void)
|
---|
[1] | 2672 | {
|
---|
[1711] | 2673 | LogFlowFunc(("\n"));
|
---|
[1] | 2674 |
|
---|
[51092] | 2675 | int rc = hgcmThreadInit();
|
---|
[1] | 2676 |
|
---|
[13835] | 2677 | if (RT_SUCCESS(rc))
|
---|
[1] | 2678 | {
|
---|
[1711] | 2679 | /*
|
---|
| 2680 | * Start main HGCM thread.
|
---|
| 2681 | */
|
---|
[1] | 2682 |
|
---|
[75539] | 2683 | rc = hgcmThreadCreate(&g_pHgcmThread, "MainHGCMthread", hgcmThread, NULL /*pvUser*/, NULL /*pszStatsSubDir*/, NULL /*pUVM*/);
|
---|
[1] | 2684 |
|
---|
[21878] | 2685 | if (RT_FAILURE(rc))
|
---|
[13837] | 2686 | LogRel(("Failed to start HGCM thread. HGCM services will be unavailable!!! rc = %Rrc\n", rc));
|
---|
[1] | 2687 | }
|
---|
| 2688 |
|
---|
[13837] | 2689 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1] | 2690 | return rc;
|
---|
| 2691 | }
|
---|
[1385] | 2692 |
|
---|
[75574] | 2693 | int HGCMHostShutdown(bool fUvmIsInvalid /*= false*/)
|
---|
[1385] | 2694 | {
|
---|
[1711] | 2695 | LogFlowFunc(("\n"));
|
---|
[1385] | 2696 |
|
---|
[1711] | 2697 | /*
|
---|
| 2698 | * Do HGCMReset and then unload all services.
|
---|
| 2699 | */
|
---|
[1385] | 2700 |
|
---|
[75991] | 2701 | int rc = HGCMHostReset(true /*fForShutdown*/);
|
---|
[1711] | 2702 |
|
---|
[21878] | 2703 | if (RT_SUCCESS(rc))
|
---|
[1385] | 2704 | {
|
---|
[1711] | 2705 | /* Send the quit message to the main hgcmThread. */
|
---|
[75574] | 2706 | HGCMMsgCore *pMsgCore;
|
---|
| 2707 | rc = hgcmMsgAlloc(g_pHgcmThread, &pMsgCore, HGCM_MSG_QUIT, hgcmMainMessageAlloc);
|
---|
[1385] | 2708 |
|
---|
[13835] | 2709 | if (RT_SUCCESS(rc))
|
---|
[1711] | 2710 | {
|
---|
[75574] | 2711 | HGCMMsgMainQuit *pMsg = (HGCMMsgMainQuit *)pMsgCore;
|
---|
| 2712 | pMsg->fUvmIsInvalid = fUvmIsInvalid;
|
---|
| 2713 |
|
---|
[75541] | 2714 | rc = hgcmMsgSend(pMsg);
|
---|
[1385] | 2715 |
|
---|
[21878] | 2716 | if (RT_SUCCESS(rc))
|
---|
[1711] | 2717 | {
|
---|
[1788] | 2718 | /* Wait for the thread termination. */
|
---|
[75539] | 2719 | hgcmThreadWait(g_pHgcmThread);
|
---|
[75541] | 2720 | g_pHgcmThread = NULL;
|
---|
[1788] | 2721 |
|
---|
[51092] | 2722 | hgcmThreadUninit();
|
---|
[1711] | 2723 | }
|
---|
| 2724 | }
|
---|
| 2725 | }
|
---|
[1385] | 2726 |
|
---|
[13837] | 2727 | LogFlowFunc(("rc = %Rrc\n", rc));
|
---|
[1385] | 2728 | return rc;
|
---|
| 2729 | }
|
---|
[75541] | 2730 |
|
---|