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Diffstat (limited to 'include/VBox/ExtPack/ExtPack.h')
| -rw-r--r-- | include/VBox/ExtPack/ExtPack.h | 588 |
1 files changed, 588 insertions, 0 deletions
diff --git a/include/VBox/ExtPack/ExtPack.h b/include/VBox/ExtPack/ExtPack.h new file mode 100644 index 00000000..5ec2db2e --- /dev/null +++ b/include/VBox/ExtPack/ExtPack.h @@ -0,0 +1,588 @@ +/** @file + * VirtualBox - Extension Pack Interface. + */ + +/* + * Copyright (C) 2010-2020 Oracle Corporation + * + * This file is part of VirtualBox Open Source Edition (OSE), as + * available from http://www.virtualbox.org. This file is free software; + * you can redistribute it and/or modify it under the terms of the GNU + * General Public License (GPL) as published by the Free Software + * Foundation, in version 2 as it comes in the "COPYING" file of the + * VirtualBox OSE distribution. VirtualBox OSE is distributed in the + * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. + * + * The contents of this file may alternatively be used under the terms + * of the Common Development and Distribution License Version 1.0 + * (CDDL) only, as it comes in the "COPYING.CDDL" file of the + * VirtualBox OSE distribution, in which case the provisions of the + * CDDL are applicable instead of those of the GPL. + * + * You may elect to license modified versions of this file under the + * terms and conditions of either the GPL or the CDDL or both. + */ + +#ifndef VBOX_INCLUDED_ExtPack_ExtPack_h +#define VBOX_INCLUDED_ExtPack_ExtPack_h +#ifndef RT_WITHOUT_PRAGMA_ONCE +# pragma once +#endif + +#include <VBox/types.h> + +/** @def VBOXEXTPACK_IF_CS + * Selects 'class' on 'struct' for interface references. + * @param I The interface name + */ +#if defined(__cplusplus) && !defined(RT_OS_WINDOWS) +# define VBOXEXTPACK_IF_CS(I) class I +#else +# define VBOXEXTPACK_IF_CS(I) struct I +#endif + +VBOXEXTPACK_IF_CS(IUnknown); +VBOXEXTPACK_IF_CS(IConsole); +VBOXEXTPACK_IF_CS(IMachine); +VBOXEXTPACK_IF_CS(IVirtualBox); +VBOXEXTPACK_IF_CS(IProgress); + +/** + * Module kind for use with VBOXEXTPACKHLP::pfnFindModule. + */ +typedef enum VBOXEXTPACKMODKIND +{ + /** Zero is invalid as always. */ + VBOXEXTPACKMODKIND_INVALID = 0, + /** Raw-mode context module. */ + VBOXEXTPACKMODKIND_RC, + /** Ring-0 context module. */ + VBOXEXTPACKMODKIND_R0, + /** Ring-3 context module. */ + VBOXEXTPACKMODKIND_R3, + /** End of the valid values (exclusive). */ + VBOXEXTPACKMODKIND_END, + /** The usual 32-bit type hack. */ + VBOXEXTPACKMODKIND_32BIT_HACK = 0x7fffffff +} VBOXEXTPACKMODKIND; + +/** + * Contexts returned by VBOXEXTPACKHLP::pfnGetContext. + */ +typedef enum VBOXEXTPACKCTX +{ + /** Zero is invalid as always. */ + VBOXEXTPACKCTX_INVALID = 0, + /** The per-user daemon process (VBoxSVC). */ + VBOXEXTPACKCTX_PER_USER_DAEMON, + /** A VM process. */ + VBOXEXTPACKCTX_VM_PROCESS, + /** An API client process. + * @remarks This will not be returned by VirtualBox yet. */ + VBOXEXTPACKCTX_CLIENT_PROCESS, + /** End of the valid values (exclusive). */ + VBOXEXTPACKCTX_END, + /** The usual 32-bit type hack. */ + VBOXEXTPACKCTX_32BIT_HACK = 0x7fffffff +} VBOXEXTPACKCTX; + + +/** Pointer to const helpers passed to the VBoxExtPackRegister() call. */ +typedef const struct VBOXEXTPACKHLP *PCVBOXEXTPACKHLP; +/** + * Extension pack helpers passed to VBoxExtPackRegister(). + * + * This will be valid until the module is unloaded. + */ +typedef struct VBOXEXTPACKHLP +{ + /** Interface version. + * This is set to VBOXEXTPACKHLP_VERSION. */ + uint32_t u32Version; + + /** The VirtualBox full version (see VBOX_FULL_VERSION). */ + uint32_t uVBoxFullVersion; + /** The VirtualBox subversion tree revision. */ + uint32_t uVBoxInternalRevision; + /** Explicit alignment padding, must be zero. */ + uint32_t u32Padding; + /** Pointer to the version string (read-only). */ + const char *pszVBoxVersion; + + /** + * Finds a module belonging to this extension pack. + * + * @returns VBox status code. + * @param pHlp Pointer to this helper structure. + * @param pszName The module base name. + * @param pszExt The extension. If NULL the default ring-3 + * library extension will be used. + * @param enmKind The kind of module to locate. + * @param pszFound Where to return the path to the module on + * success. + * @param cbFound The size of the buffer @a pszFound points to. + * @param pfNative Where to return the native/agnostic indicator. + */ + DECLR3CALLBACKMEMBER(int, pfnFindModule,(PCVBOXEXTPACKHLP pHlp, const char *pszName, const char *pszExt, + VBOXEXTPACKMODKIND enmKind, + char *pszFound, size_t cbFound, bool *pfNative)); + + /** + * Gets the path to a file belonging to this extension pack. + * + * @returns VBox status code. + * @retval VERR_INVALID_POINTER if any of the pointers are invalid. + * @retval VERR_BUFFER_OVERFLOW if the buffer is too small. The buffer + * will contain nothing. + * + * @param pHlp Pointer to this helper structure. + * @param pszFilename The filename. + * @param pszPath Where to return the path to the file on + * success. + * @param cbPath The size of the buffer @a pszPath. + */ + DECLR3CALLBACKMEMBER(int, pfnGetFilePath,(PCVBOXEXTPACKHLP pHlp, const char *pszFilename, char *pszPath, size_t cbPath)); + + /** + * Gets the context the extension pack is operating in. + * + * @returns The context. + * @retval VBOXEXTPACKCTX_INVALID if @a pHlp is invalid. + * + * @param pHlp Pointer to this helper structure. + */ + DECLR3CALLBACKMEMBER(VBOXEXTPACKCTX, pfnGetContext,(PCVBOXEXTPACKHLP pHlp)); + + /** + * Loads a HGCM service provided by an extension pack. + * + * @returns VBox status code. + * @param pHlp Pointer to this helper structure. + * @param pConsole Pointer to the VM's console object. + * @param pszServiceLibrary Name of the library file containing the + * service implementation, without extension. + * @param pszServiceName Name of HGCM service. + */ + DECLR3CALLBACKMEMBER(int, pfnLoadHGCMService,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IConsole) *pConsole, + const char *pszServiceLibrary, const char *pszServiceName)); + + /** + * Loads a VD plugin provided by an extension pack. + * + * This makes sense only in the context of the per-user service (VBoxSVC). + * + * @returns VBox status code. + * @param pHlp Pointer to this helper structure. + * @param pVirtualBox Pointer to the VirtualBox object. + * @param pszPluginLibrary Name of the library file containing the plugin + * implementation, without extension. + */ + DECLR3CALLBACKMEMBER(int, pfnLoadVDPlugin,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IVirtualBox) *pVirtualBox, + const char *pszPluginLibrary)); + + /** + * Unloads a VD plugin provided by an extension pack. + * + * This makes sense only in the context of the per-user service (VBoxSVC). + * + * @returns VBox status code. + * @param pHlp Pointer to this helper structure. + * @param pVirtualBox Pointer to the VirtualBox object. + * @param pszPluginLibrary Name of the library file containing the plugin + * implementation, without extension. + */ + DECLR3CALLBACKMEMBER(int, pfnUnloadVDPlugin,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IVirtualBox) *pVirtualBox, + const char *pszPluginLibrary)); + + /** + * Creates an IProgress object instance for a long running extension + * pack provided API operation which is executed asynchronously. + * + * This implicitly creates a cancellable progress object, since anything + * else is user unfriendly. You need to design your code to handle + * cancellation with reasonable response time. + * + * @returns COM status code. + * @param pHlp Pointer to this helper structure. + * @param pInitiator Pointer to the initiating object. + * @param pcszDescription Description of the overall task. + * @param cOperations Number of operations for this task. + * @param uTotalOperationsWeight Overall weight for the entire task. + * @param pcszFirstOperationDescription Description of the first operation. + * @param uFirstOperationWeight Weight for the first operation. + * @param ppProgressOut Output parameter for the IProgress object reference. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnCreateProgress,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IUnknown) *pInitiator, + const char *pcszDescription, uint32_t cOperations, + uint32_t uTotalOperationsWeight, const char *pcszFirstOperationDescription, + uint32_t uFirstOperationWeight, VBOXEXTPACK_IF_CS(IProgress) **ppProgressOut)); + + /** + * Checks if the Progress object is marked as canceled. + * + * @returns COM status code. + * @param pHlp Pointer to this helper structure. + * @param pProgress Pointer to the IProgress object reference returned + * by pfnCreateProgress. + * @param pfCanceled @c true if canceled, @c false otherwise. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnGetCanceledProgress,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IProgress) *pProgress, + bool *pfCanceled)); + + /** + * Updates the percentage value of the current operation of the + * Progress object. + * + * @returns COM status code. + * @param pHlp Pointer to this helper structure. + * @param pProgress Pointer to the IProgress object reference returned + * by pfnCreateProgress. + * @param uPercent Result of the overall task. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnUpdateProgress,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IProgress) *pProgress, + uint32_t uPercent)); + + /** + * Signals that the current operation is successfully completed and + * advances to the next operation. The operation percentage is reset + * to 0. + * + * If the operation count is exceeded this returns an error. + * + * @returns COM status code. + * @param pHlp Pointer to this helper structure. + * @param pProgress Pointer to the IProgress object reference returned + * by pfnCreateProgress. + * @param pcszNextOperationDescription Description of the next operation. + * @param uNextOperationWeight Weight for the next operation. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnNextOperationProgress,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IProgress) *pProgress, + const char *pcszNextOperationDescription, + uint32_t uNextOperationWeight)); + + /** + * Waits until the other task is completed (including all sub-operations) + * and forward all changes from the other progress to this progress. This + * means sub-operation number, description, percent and so on. + * + * The caller is responsible for having at least the same count of + * sub-operations in this progress object as there are in the other + * progress object. + * + * If the other progress object supports cancel and this object gets any + * cancel request (when here enabled as well), it will be forwarded to + * the other progress object. + * + * Error information is automatically preserved (by transferring it to + * the current thread's error information). If the caller wants to set it + * as the completion state of this progress it needs to be done separately. + * + * @returns COM status code. + * @param pHlp Pointer to this helper structure. + * @param pProgress Pointer to the IProgress object reference returned + * by pfnCreateProgress. + * @param pProgressOther Pointer to an IProgress object reference, the one + * to be waited for. + * @param cTimeoutMS Timeout in milliseconds, 0 for indefinite wait. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnWaitOtherProgress,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IProgress) *pProgress, + VBOXEXTPACK_IF_CS(IProgress) *pProgressOther, + uint32_t cTimeoutMS)); + + /** + * Marks the whole task as complete and sets the result code. + * + * If the result code indicates a failure then this method will store + * the currently set COM error info from the current thread in the + * the errorInfo attribute of this Progress object instance. If there + * is no error information available then an error is returned. + * + * If the result code indicates success then the task is terminated, + * without paying attention to the current operation being the last. + * + * Note that this must be called only once for the given Progress + * object. Subsequent calls will return errors. + * + * @returns COM status code. + * @param pHlp Pointer to this helper structure. + * @param pProgress Pointer to the IProgress object reference returned + * by pfnCreateProgress. + * @param uResultCode Result of the overall task. + */ + DECLR3CALLBACKMEMBER(uint32_t, pfnCompleteProgress,(PCVBOXEXTPACKHLP pHlp, VBOXEXTPACK_IF_CS(IProgress) *pProgress, + uint32_t uResultCode)); + + DECLR3CALLBACKMEMBER(int, pfnReserved1,(PCVBOXEXTPACKHLP pHlp)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved2,(PCVBOXEXTPACKHLP pHlp)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved3,(PCVBOXEXTPACKHLP pHlp)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved4,(PCVBOXEXTPACKHLP pHlp)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved5,(PCVBOXEXTPACKHLP pHlp)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved6,(PCVBOXEXTPACKHLP pHlp)); /**< Reserved for minor structure revisions. */ + + /** End of structure marker (VBOXEXTPACKHLP_VERSION). */ + uint32_t u32EndMarker; +} VBOXEXTPACKHLP; +/** Current version of the VBOXEXTPACKHLP structure. */ +#define VBOXEXTPACKHLP_VERSION RT_MAKE_U32(3, 0) + + +/** Pointer to the extension pack callback table. */ +typedef struct VBOXEXTPACKREG const *PCVBOXEXTPACKREG; +/** + * Callback table returned by VBoxExtPackRegister. + * + * All the callbacks are called the context of the per-user service (VBoxSVC). + * + * This must be valid until the extension pack main module is unloaded. + */ +typedef struct VBOXEXTPACKREG +{ + /** Interface version. + * This is set to VBOXEXTPACKREG_VERSION. */ + uint32_t u32Version; + /** The VirtualBox version this extension pack was built against. */ + uint32_t uVBoxVersion; + + /** + * Hook for doing setups after the extension pack was installed. + * + * @returns VBox status code. + * @retval VERR_EXTPACK_UNSUPPORTED_HOST_UNINSTALL if the extension pack + * requires some different host version or a prerequisite is + * missing from the host. Automatic uninstall will be attempted. + * Must set error info. + * + * @param pThis Pointer to this structure. + * @param pVirtualBox The VirtualBox interface. + * @param pErrInfo Where to return extended error information. + */ + DECLCALLBACKMEMBER(int, pfnInstalled)(PCVBOXEXTPACKREG pThis, VBOXEXTPACK_IF_CS(IVirtualBox) *pVirtualBox, + PRTERRINFO pErrInfo); + + /** + * Hook for cleaning up before the extension pack is uninstalled. + * + * @returns VBox status code. + * @param pThis Pointer to this structure. + * @param pVirtualBox The VirtualBox interface. + * + * @todo This is currently called holding locks making pVirtualBox + * relatively unusable. + */ + DECLCALLBACKMEMBER(int, pfnUninstall)(PCVBOXEXTPACKREG pThis, VBOXEXTPACK_IF_CS(IVirtualBox) *pVirtualBox); + + /** + * Hook for doing work after the VirtualBox object is ready. + * + * @param pThis Pointer to this structure. + * @param pVirtualBox The VirtualBox interface. + */ + DECLCALLBACKMEMBER(void, pfnVirtualBoxReady)(PCVBOXEXTPACKREG pThis, VBOXEXTPACK_IF_CS(IVirtualBox) *pVirtualBox); + + /** + * Hook for doing work before unloading. + * + * @param pThis Pointer to this structure. + * + * @remarks The helpers are not available at this point in time. + * @remarks This is not called on uninstall, then pfnUninstall will be the + * last callback. + */ + DECLCALLBACKMEMBER(void, pfnUnload)(PCVBOXEXTPACKREG pThis); + + /** + * Hook for changing the default VM configuration upon creation. + * + * @returns VBox status code. + * @param pThis Pointer to this structure. + * @param pVirtualBox The VirtualBox interface. + * @param pMachine The machine interface. + */ + DECLCALLBACKMEMBER(int, pfnVMCreated)(PCVBOXEXTPACKREG pThis, VBOXEXTPACK_IF_CS(IVirtualBox) *pVirtualBox, + VBOXEXTPACK_IF_CS(IMachine) *pMachine); + + /** + * Query the IUnknown interface to an object in the main module. + * + * @returns IUnknown pointer (referenced) on success, NULL on failure. + * @param pThis Pointer to this structure. + * @param pObjectId Pointer to the object ID (UUID). + */ + DECLCALLBACKMEMBER(void *, pfnQueryObject)(PCVBOXEXTPACKREG pThis, PCRTUUID pObjectId); + + DECLR3CALLBACKMEMBER(int, pfnReserved1,(PCVBOXEXTPACKREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved2,(PCVBOXEXTPACKREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved3,(PCVBOXEXTPACKREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved4,(PCVBOXEXTPACKREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved5,(PCVBOXEXTPACKREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved6,(PCVBOXEXTPACKREG pThis)); /**< Reserved for minor structure revisions. */ + + /** Reserved for minor structure revisions. */ + uint32_t uReserved7; + + /** End of structure marker (VBOXEXTPACKREG_VERSION). */ + uint32_t u32EndMarker; +} VBOXEXTPACKREG; +/** Current version of the VBOXEXTPACKREG structure. */ +#define VBOXEXTPACKREG_VERSION RT_MAKE_U32(2, 0) + + +/** + * The VBoxExtPackRegister callback function. + * + * The Main API (as in VBoxSVC) will invoke this function after loading an + * extension pack Main module. Its job is to do version compatibility checking + * and returning the extension pack registration structure. + * + * @returns VBox status code. + * @param pHlp Pointer to the extension pack helper function + * table. This is valid until the module is unloaded. + * @param ppReg Where to return the pointer to the registration + * structure containing all the hooks. This structure + * be valid and unchanged until the module is unloaded + * (i.e. use some static const data for it). + * @param pErrInfo Where to return extended error information. + */ +typedef DECLCALLBACK(int) FNVBOXEXTPACKREGISTER(PCVBOXEXTPACKHLP pHlp, PCVBOXEXTPACKREG *ppReg, PRTERRINFO pErrInfo); +/** Pointer to a FNVBOXEXTPACKREGISTER. */ +typedef FNVBOXEXTPACKREGISTER *PFNVBOXEXTPACKREGISTER; + +/** The name of the main module entry point. */ +#define VBOX_EXTPACK_MAIN_MOD_ENTRY_POINT "VBoxExtPackRegister" + + +/** Pointer to the extension pack VM callback table. */ +typedef struct VBOXEXTPACKVMREG const *PCVBOXEXTPACKVMREG; +/** + * Callback table returned by VBoxExtPackVMRegister. + * + * All the callbacks are called the context of a VM process. + * + * This must be valid until the extension pack main VM module is unloaded. + */ +typedef struct VBOXEXTPACKVMREG +{ + /** Interface version. + * This is set to VBOXEXTPACKVMREG_VERSION. */ + uint32_t u32Version; + /** The VirtualBox version this extension pack was built against. */ + uint32_t uVBoxVersion; + + /** + * Hook for doing work after the Console object is ready. + * + * @param pThis Pointer to this structure. + * @param pConsole The Console interface. + */ + DECLCALLBACKMEMBER(void, pfnConsoleReady)(PCVBOXEXTPACKVMREG pThis, VBOXEXTPACK_IF_CS(IConsole) *pConsole); + + /** + * Hook for doing work before unloading. + * + * @param pThis Pointer to this structure. + * + * @remarks The helpers are not available at this point in time. + */ + DECLCALLBACKMEMBER(void, pfnUnload)(PCVBOXEXTPACKVMREG pThis); + + /** + * Hook for configuring the VMM for a VM. + * + * @returns VBox status code. + * @param pThis Pointer to this structure. + * @param pConsole The console interface. + * @param pVM The cross context VM structure. + */ + DECLCALLBACKMEMBER(int, pfnVMConfigureVMM)(PCVBOXEXTPACKVMREG pThis, VBOXEXTPACK_IF_CS(IConsole) *pConsole, PVM pVM); + + /** + * Hook for doing work right before powering on the VM. + * + * @returns VBox status code. + * @param pThis Pointer to this structure. + * @param pConsole The console interface. + * @param pVM The cross context VM structure. + */ + DECLCALLBACKMEMBER(int, pfnVMPowerOn)(PCVBOXEXTPACKVMREG pThis, VBOXEXTPACK_IF_CS(IConsole) *pConsole, PVM pVM); + + /** + * Hook for doing work after powering off the VM. + * + * @param pThis Pointer to this structure. + * @param pConsole The console interface. + * @param pVM The cross context VM structure. Can be NULL. + */ + DECLCALLBACKMEMBER(void, pfnVMPowerOff)(PCVBOXEXTPACKVMREG pThis, VBOXEXTPACK_IF_CS(IConsole) *pConsole, PVM pVM); + + /** + * Query the IUnknown interface to an object in the main VM module. + * + * @returns IUnknown pointer (referenced) on success, NULL on failure. + * @param pThis Pointer to this structure. + * @param pObjectId Pointer to the object ID (UUID). + */ + DECLCALLBACKMEMBER(void *, pfnQueryObject)(PCVBOXEXTPACKVMREG pThis, PCRTUUID pObjectId); + + DECLR3CALLBACKMEMBER(int, pfnReserved1,(PCVBOXEXTPACKVMREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved2,(PCVBOXEXTPACKVMREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved3,(PCVBOXEXTPACKVMREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved4,(PCVBOXEXTPACKVMREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved5,(PCVBOXEXTPACKVMREG pThis)); /**< Reserved for minor structure revisions. */ + DECLR3CALLBACKMEMBER(int, pfnReserved6,(PCVBOXEXTPACKVMREG pThis)); /**< Reserved for minor structure revisions. */ + + /** Reserved for minor structure revisions. */ + uint32_t uReserved7; + + /** End of structure marker (VBOXEXTPACKVMREG_VERSION). */ + uint32_t u32EndMarker; +} VBOXEXTPACKVMREG; +/** Current version of the VBOXEXTPACKVMREG structure. */ +#define VBOXEXTPACKVMREG_VERSION RT_MAKE_U32(2, 0) + + +/** + * The VBoxExtPackVMRegister callback function. + * + * The Main API (in a VM process) will invoke this function after loading an + * extension pack VM module. Its job is to do version compatibility checking + * and returning the extension pack registration structure for a VM. + * + * @returns VBox status code. + * @param pHlp Pointer to the extension pack helper function + * table. This is valid until the module is unloaded. + * @param ppReg Where to return the pointer to the registration + * structure containing all the hooks. This structure + * be valid and unchanged until the module is unloaded + * (i.e. use some static const data for it). + * @param pErrInfo Where to return extended error information. + */ +typedef DECLCALLBACK(int) FNVBOXEXTPACKVMREGISTER(PCVBOXEXTPACKHLP pHlp, PCVBOXEXTPACKVMREG *ppReg, PRTERRINFO pErrInfo); +/** Pointer to a FNVBOXEXTPACKVMREGISTER. */ +typedef FNVBOXEXTPACKVMREGISTER *PFNVBOXEXTPACKVMREGISTER; + +/** The name of the main VM module entry point. */ +#define VBOX_EXTPACK_MAIN_VM_MOD_ENTRY_POINT "VBoxExtPackVMRegister" + + +/** + * Checks if extension pack interface version is compatible. + * + * @returns true if the do, false if they don't. + * @param u32Provider The provider version. + * @param u32User The user version. + */ +#define VBOXEXTPACK_IS_VER_COMPAT(u32Provider, u32User) \ + ( VBOXEXTPACK_IS_MAJOR_VER_EQUAL(u32Provider, u32User) \ + && (int32_t)RT_LOWORD(u32Provider) >= (int32_t)RT_LOWORD(u32User) ) /* stupid casts to shut up gcc */ + +/** + * Check if two extension pack interface versions has the same major version. + * + * @returns true if the do, false if they don't. + * @param u32Ver1 The first version number. + * @param u32Ver2 The second version number. + */ +#define VBOXEXTPACK_IS_MAJOR_VER_EQUAL(u32Ver1, u32Ver2) (RT_HIWORD(u32Ver1) == RT_HIWORD(u32Ver2)) + +#endif /* !VBOX_INCLUDED_ExtPack_ExtPack_h */ + |