[10258] | 1 | /* $Id: SUPR0IdcClientStubs.c 62664 2016-07-28 23:30:23Z vboxsync $ */
|
---|
| 2 | /** @file
|
---|
| 3 | * VirtualBox Support Driver - IDC Client Lib, Stubs for SUPR0 APIs.
|
---|
| 4 | */
|
---|
| 5 |
|
---|
| 6 | /*
|
---|
[62490] | 7 | * Copyright (C) 2008-2016 Oracle Corporation
|
---|
[10258] | 8 | *
|
---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
---|
| 12 | * General Public License (GPL) as published by the Free Software
|
---|
| 13 | * Foundation, in version 2 as it comes in the "COPYING" file of the
|
---|
| 14 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
|
---|
| 15 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
|
---|
| 16 | *
|
---|
| 17 | * The contents of this file may alternatively be used under the terms
|
---|
| 18 | * of the Common Development and Distribution License Version 1.0
|
---|
| 19 | * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
|
---|
| 20 | * VirtualBox OSE distribution, in which case the provisions of the
|
---|
| 21 | * CDDL are applicable instead of those of the GPL.
|
---|
| 22 | *
|
---|
| 23 | * You may elect to license modified versions of this file under the
|
---|
| 24 | * terms and conditions of either the GPL or the CDDL or both.
|
---|
| 25 | */
|
---|
| 26 |
|
---|
[57358] | 27 |
|
---|
| 28 | /*********************************************************************************************************************************
|
---|
| 29 | * Header Files *
|
---|
| 30 | *********************************************************************************************************************************/
|
---|
[10258] | 31 | #include "SUPR0IdcClientInternal.h"
|
---|
| 32 | #include <VBox/err.h>
|
---|
[29285] | 33 | #include <iprt/asm.h>
|
---|
[10258] | 34 |
|
---|
| 35 |
|
---|
| 36 | /**
|
---|
| 37 | * Resolves a symbol.
|
---|
| 38 | *
|
---|
| 39 | * @returns Pointer to the symbol on success, NULL on failure.
|
---|
| 40 | *
|
---|
| 41 | * @param pHandle The IDC handle.
|
---|
[58340] | 42 | * @param ppfn Where to return the address of the symbol.
|
---|
[10258] | 43 | * @param pszName The name of the symbol.
|
---|
| 44 | */
|
---|
| 45 | static void supR0IdcGetSymbol(PSUPDRVIDCHANDLE pHandle, PFNRT *ppfn, const char *pszName)
|
---|
| 46 | {
|
---|
| 47 | SUPDRVIDCREQGETSYM Req;
|
---|
| 48 | int rc;
|
---|
| 49 |
|
---|
| 50 | /*
|
---|
| 51 | * Create and send a get symbol request.
|
---|
| 52 | */
|
---|
| 53 | Req.Hdr.cb = sizeof(Req);
|
---|
| 54 | Req.Hdr.rc = VERR_WRONG_ORDER;
|
---|
| 55 | Req.Hdr.pSession = pHandle->s.pSession;
|
---|
| 56 | Req.u.In.pszSymbol = pszName;
|
---|
| 57 | Req.u.In.pszModule = NULL;
|
---|
| 58 | rc = supR0IdcNativeCall(pHandle, SUPDRV_IDC_REQ_GET_SYMBOL, &Req.Hdr);
|
---|
| 59 | if (RT_SUCCESS(rc))
|
---|
[62664] | 60 | ASMAtomicWritePtr((void * volatile *)ppfn, (void *)(uintptr_t)Req.u.Out.pfnSymbol);
|
---|
[10258] | 61 | }
|
---|
| 62 |
|
---|
| 63 |
|
---|
| 64 | /**
|
---|
| 65 | * Resolves a symbol.
|
---|
| 66 | *
|
---|
| 67 | * @returns Pointer to the symbol on success, NULL on failure.
|
---|
| 68 | *
|
---|
[58340] | 69 | * @param pSession The IDC session.
|
---|
| 70 | * @param ppfn Where to return the address of the symbol.
|
---|
[10258] | 71 | * @param pszName The name of the symbol.
|
---|
| 72 | */
|
---|
| 73 | static void supR0IdcGetSymbolBySession(PSUPDRVSESSION pSession, PFNRT *ppfn, const char *pszName)
|
---|
| 74 | {
|
---|
| 75 | PSUPDRVIDCHANDLE pHandle = supR0IdcGetHandleFromSession(pSession);
|
---|
| 76 | if (pHandle)
|
---|
| 77 | supR0IdcGetSymbol(pHandle, ppfn, pszName);
|
---|
| 78 | }
|
---|
| 79 |
|
---|
| 80 |
|
---|
| 81 | SUPR0DECL(void *) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void *pvUser1, void *pvUser2)
|
---|
| 82 | {
|
---|
[25181] | 83 | static DECLCALLBACKPTR(void *, s_pfn)(PSUPDRVSESSION /* pSession */, SUPDRVOBJTYPE /* enmType */, PFNSUPDRVDESTRUCTOR /* pfnDestructor */, void * /* pvUser1 */, void * /* pvUser2 */);
|
---|
| 84 | DECLCALLBACKPTR(void *, pfn)(PSUPDRVSESSION /* pSession */, SUPDRVOBJTYPE /* enmType */, PFNSUPDRVDESTRUCTOR /* pfnDestructor */, void * /* pvUser1 */, void * /* pvUser2 */);
|
---|
[10258] | 85 | pfn = s_pfn;
|
---|
| 86 | if (!pfn)
|
---|
| 87 | {
|
---|
| 88 | supR0IdcGetSymbolBySession(pSession, (PFNRT *)&s_pfn, "SUPR0ObjRegister");
|
---|
| 89 | pfn = s_pfn;
|
---|
| 90 | if (!pfn)
|
---|
| 91 | return NULL;
|
---|
| 92 | }
|
---|
| 93 |
|
---|
| 94 | return pfn(pSession, enmType, pfnDestructor, pvUser1, pvUser2);
|
---|
| 95 | }
|
---|
| 96 |
|
---|
| 97 |
|
---|
| 98 | SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession)
|
---|
| 99 | {
|
---|
[25181] | 100 | static DECLCALLBACKPTR(int, s_pfn)(void * /* pvObj */, PSUPDRVSESSION /* pSession */);
|
---|
| 101 | DECLCALLBACKPTR(int, pfn)(void * /* pvObj */, PSUPDRVSESSION /* pSession */);
|
---|
[10258] | 102 | pfn = s_pfn;
|
---|
| 103 | if (!pfn)
|
---|
| 104 | {
|
---|
| 105 | supR0IdcGetSymbolBySession(pSession, (PFNRT *)&s_pfn, "SUPR0ObjAddRef");
|
---|
| 106 | pfn = s_pfn;
|
---|
| 107 | if (!pfn)
|
---|
| 108 | return VERR_NOT_SUPPORTED;
|
---|
| 109 | }
|
---|
| 110 |
|
---|
| 111 | return pfn(pvObj, pSession);
|
---|
| 112 | }
|
---|
| 113 |
|
---|
| 114 |
|
---|
| 115 | SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession)
|
---|
| 116 | {
|
---|
[25181] | 117 | static DECLCALLBACKPTR(int, s_pfn)(void * /* pvObj */, PSUPDRVSESSION /* pSession */);
|
---|
| 118 | DECLCALLBACKPTR(int, pfn)(void * /* pvObj */, PSUPDRVSESSION /* pSession */);
|
---|
[10258] | 119 | pfn = s_pfn;
|
---|
| 120 | if (!pfn)
|
---|
| 121 | {
|
---|
| 122 | supR0IdcGetSymbolBySession(pSession, (PFNRT *)&s_pfn, "SUPR0ObjRelease");
|
---|
| 123 | pfn = s_pfn;
|
---|
| 124 | if (!pfn)
|
---|
| 125 | return VERR_NOT_SUPPORTED;
|
---|
| 126 | }
|
---|
| 127 |
|
---|
| 128 | return pfn(pvObj, pSession);
|
---|
| 129 | }
|
---|
| 130 |
|
---|
| 131 |
|
---|
| 132 | SUPR0DECL(int) SUPR0ObjVerifyAccess(void *pvObj, PSUPDRVSESSION pSession, const char *pszObjName)
|
---|
| 133 | {
|
---|
[25181] | 134 | static DECLCALLBACKPTR(int, s_pfn)(void * /* pvObj */, PSUPDRVSESSION /* pSession */, const char * /* pszObjName */);
|
---|
| 135 | DECLCALLBACKPTR(int, pfn)(void * /* pvObj */, PSUPDRVSESSION /* pSession */, const char * /* pszObjName */);
|
---|
[10258] | 136 | pfn = s_pfn;
|
---|
| 137 | if (!pfn)
|
---|
| 138 | {
|
---|
| 139 | supR0IdcGetSymbolBySession(pSession, (PFNRT *)&s_pfn, "SUPR0ObjVerifyAccess");
|
---|
| 140 | pfn = s_pfn;
|
---|
| 141 | if (!pfn)
|
---|
| 142 | return VERR_NOT_SUPPORTED;
|
---|
| 143 | }
|
---|
| 144 |
|
---|
| 145 | return pfn(pvObj, pSession, pszObjName);
|
---|
| 146 | }
|
---|
| 147 |
|
---|