diff options
Diffstat (limited to 'src/VBox/Additions/common/VBoxService/VBoxService-win.cpp')
| -rw-r--r-- | src/VBox/Additions/common/VBoxService/VBoxService-win.cpp | 670 |
1 files changed, 670 insertions, 0 deletions
diff --git a/src/VBox/Additions/common/VBoxService/VBoxService-win.cpp b/src/VBox/Additions/common/VBoxService/VBoxService-win.cpp new file mode 100644 index 00000000..5a32124f --- /dev/null +++ b/src/VBox/Additions/common/VBoxService/VBoxService-win.cpp @@ -0,0 +1,670 @@ +/* $Id: VBoxService-win.cpp $ */ +/** @file + * VBoxService - Guest Additions Service Skeleton, Windows Specific Parts. + */ + +/* + * Copyright (C) 2009-2022 Oracle and/or its affiliates. + * + * This file is part of VirtualBox base platform packages, as + * available from https://www.virtualbox.org. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, in version 3 of the + * License. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see <https://www.gnu.org/licenses>. + * + * SPDX-License-Identifier: GPL-3.0-only + */ + + +/********************************************************************************************************************************* +* Header Files * +*********************************************************************************************************************************/ +#include <iprt/assert.h> +#include <iprt/err.h> +#include <iprt/ldr.h> +#include <iprt/system.h> /* For querying OS version. */ +#include <VBox/VBoxGuestLib.h> + +#define WIN32_NO_STATUS +#include <iprt/win/ws2tcpip.h> +#include <iprt/win/winsock2.h> +#undef WIN32_NO_STATUS +#include <iprt/nt/nt-and-windows.h> +#include <iprt/win/iphlpapi.h> +#include <aclapi.h> +#include <tlhelp32.h> +#define _NTDEF_ +#include <Ntsecapi.h> + +#include "VBoxServiceInternal.h" + + +/********************************************************************************************************************************* +* Internal Functions * +*********************************************************************************************************************************/ +static void WINAPI vgsvcWinMain(DWORD argc, LPTSTR *argv); + + +/********************************************************************************************************************************* +* Global Variables * +*********************************************************************************************************************************/ +static DWORD g_dwWinServiceLastStatus = 0; +SERVICE_STATUS_HANDLE g_hWinServiceStatus = NULL; +/** The semaphore for the dummy Windows service. */ +static RTSEMEVENT g_WindowsEvent = NIL_RTSEMEVENT; + +static SERVICE_TABLE_ENTRY const g_aServiceTable[] = +{ + { VBOXSERVICE_NAME, vgsvcWinMain }, + { NULL, NULL} +}; + +/** @name APIs from ADVAPI32.DLL. + * @{ */ +decltype(RegisterServiceCtrlHandlerExA) *g_pfnRegisterServiceCtrlHandlerExA; /**< W2K+ */ +decltype(ChangeServiceConfig2A) *g_pfnChangeServiceConfig2A; /**< W2K+ */ +decltype(GetNamedSecurityInfoA) *g_pfnGetNamedSecurityInfoA; /**< NT4+ */ +decltype(SetEntriesInAclA) *g_pfnSetEntriesInAclA; /**< NT4+ */ +decltype(SetNamedSecurityInfoA) *g_pfnSetNamedSecurityInfoA; /**< NT4+ */ +decltype(LsaNtStatusToWinError) *g_pfnLsaNtStatusToWinError; /**< NT3.51+ */ +/** @} */ + +/** @name API from KERNEL32.DLL + * @{ */ +decltype(CreateToolhelp32Snapshot) *g_pfnCreateToolhelp32Snapshot; /**< W2K+, but Geoff says NT4. Hmm. */ +decltype(Process32First) *g_pfnProcess32First; /**< W2K+, but Geoff says NT4. Hmm. */ +decltype(Process32Next) *g_pfnProcess32Next; /**< W2K+, but Geoff says NT4. Hmm. */ +decltype(Module32First) *g_pfnModule32First; /**< W2K+, but Geoff says NT4. Hmm. */ +decltype(Module32Next) *g_pfnModule32Next; /**< W2K+, but Geoff says NT4. Hmm. */ +decltype(GetSystemTimeAdjustment) *g_pfnGetSystemTimeAdjustment; /**< NT 3.50+ */ +decltype(SetSystemTimeAdjustment) *g_pfnSetSystemTimeAdjustment; /**< NT 3.50+ */ +/** @} */ + +/** @name API from NTDLL.DLL + * @{ */ +decltype(ZwQuerySystemInformation) *g_pfnZwQuerySystemInformation; /**< NT4 (where as NtQuerySystemInformation is W2K). */ +/** @} */ + +/** @name API from IPHLPAPI.DLL + * @{ */ +decltype(GetAdaptersInfo) *g_pfnGetAdaptersInfo; +/** @} */ + +/** @name APIs from WS2_32.DLL + * @note WSAIoctl is not present in wsock32.dll, so no point in trying the + * fallback here. + * @{ */ +decltype(WSAStartup) *g_pfnWSAStartup; +decltype(WSACleanup) *g_pfnWSACleanup; +decltype(WSASocketA) *g_pfnWSASocketA; +decltype(WSAIoctl) *g_pfnWSAIoctl; +decltype(WSAGetLastError) *g_pfnWSAGetLastError; +decltype(closesocket) *g_pfnclosesocket; +decltype(inet_ntoa) *g_pfninet_ntoa; + +/** @} */ + +/** + * Resolve APIs not present on older windows versions. + */ +void VGSvcWinResolveApis(void) +{ + RTLDRMOD hLdrMod; +#define RESOLVE_SYMBOL(a_fn) do { RT_CONCAT(g_pfn, a_fn) = (decltype(a_fn) *)RTLdrGetFunction(hLdrMod, #a_fn); } while (0) + + /* From ADVAPI32.DLL: */ + int rc = RTLdrLoadSystem("advapi32.dll", true /*fNoUnload*/, &hLdrMod); + AssertRC(rc); + if (RT_SUCCESS(rc)) + { + RESOLVE_SYMBOL(RegisterServiceCtrlHandlerExA); + RESOLVE_SYMBOL(ChangeServiceConfig2A); + RESOLVE_SYMBOL(GetNamedSecurityInfoA); + RESOLVE_SYMBOL(SetEntriesInAclA); + RESOLVE_SYMBOL(SetNamedSecurityInfoA); + RESOLVE_SYMBOL(LsaNtStatusToWinError); + RTLdrClose(hLdrMod); + } + + /* From KERNEL32.DLL: */ + rc = RTLdrLoadSystem("kernel32.dll", true /*fNoUnload*/, &hLdrMod); + AssertRC(rc); + if (RT_SUCCESS(rc)) + { + RESOLVE_SYMBOL(CreateToolhelp32Snapshot); + RESOLVE_SYMBOL(Process32First); + RESOLVE_SYMBOL(Process32Next); + RESOLVE_SYMBOL(Module32First); + RESOLVE_SYMBOL(Module32Next); + RESOLVE_SYMBOL(GetSystemTimeAdjustment); + RESOLVE_SYMBOL(SetSystemTimeAdjustment); + RTLdrClose(hLdrMod); + } + + /* From NTDLL.DLL: */ + rc = RTLdrLoadSystem("ntdll.dll", true /*fNoUnload*/, &hLdrMod); + AssertRC(rc); + if (RT_SUCCESS(rc)) + { + RESOLVE_SYMBOL(ZwQuerySystemInformation); + RTLdrClose(hLdrMod); + } + + /* From IPHLPAPI.DLL: */ + rc = RTLdrLoadSystem("iphlpapi.dll", true /*fNoUnload*/, &hLdrMod); + if (RT_SUCCESS(rc)) + { + RESOLVE_SYMBOL(GetAdaptersInfo); + RTLdrClose(hLdrMod); + } + + /* From WS2_32.DLL: */ + rc = RTLdrLoadSystem("ws2_32.dll", true /*fNoUnload*/, &hLdrMod); + if (RT_SUCCESS(rc)) + { + RESOLVE_SYMBOL(WSAStartup); + RESOLVE_SYMBOL(WSACleanup); + RESOLVE_SYMBOL(WSASocketA); + RESOLVE_SYMBOL(WSAIoctl); + RESOLVE_SYMBOL(WSAGetLastError); + RESOLVE_SYMBOL(closesocket); + RESOLVE_SYMBOL(inet_ntoa); + RTLdrClose(hLdrMod); + } +} + + +/** + * @todo Add full unicode support. + * @todo Add event log capabilities / check return values. + */ +static int vgsvcWinAddAceToObjectsSecurityDescriptor(LPTSTR pszObjName, SE_OBJECT_TYPE enmObjectType, const char *pszTrustee, + TRUSTEE_FORM enmTrusteeForm, DWORD dwAccessRights, ACCESS_MODE fAccessMode, + DWORD dwInheritance) +{ + int rc; + if ( g_pfnGetNamedSecurityInfoA + && g_pfnSetEntriesInAclA + && g_pfnSetNamedSecurityInfoA) + { + /* Get a pointer to the existing DACL. */ + PSECURITY_DESCRIPTOR pSD = NULL; + PACL pOldDACL = NULL; + DWORD rcWin = g_pfnGetNamedSecurityInfoA(pszObjName, enmObjectType, DACL_SECURITY_INFORMATION, + NULL, NULL, &pOldDACL, NULL, &pSD); + if (rcWin == ERROR_SUCCESS) + { + /* Initialize an EXPLICIT_ACCESS structure for the new ACE. */ + EXPLICIT_ACCESSA ExplicitAccess; + RT_ZERO(ExplicitAccess); + ExplicitAccess.grfAccessPermissions = dwAccessRights; + ExplicitAccess.grfAccessMode = fAccessMode; + ExplicitAccess.grfInheritance = dwInheritance; + ExplicitAccess.Trustee.TrusteeForm = enmTrusteeForm; + ExplicitAccess.Trustee.ptstrName = (char *)pszTrustee; + + /* Create a new ACL that merges the new ACE into the existing DACL. */ + PACL pNewDACL = NULL; + rcWin = g_pfnSetEntriesInAclA(1, &ExplicitAccess, pOldDACL, &pNewDACL); + if (rcWin == ERROR_SUCCESS) + { + /* Attach the new ACL as the object's DACL. */ + rcWin = g_pfnSetNamedSecurityInfoA(pszObjName, enmObjectType, DACL_SECURITY_INFORMATION, + NULL, NULL, pNewDACL, NULL); + if (rcWin == ERROR_SUCCESS) + rc = VINF_SUCCESS; + else + { + VGSvcError("AddAceToObjectsSecurityDescriptor: SetNamedSecurityInfo: Error %u\n", rcWin); + rc = RTErrConvertFromWin32(rcWin); + } + if (pNewDACL) + LocalFree(pNewDACL); + } + else + { + VGSvcError("AddAceToObjectsSecurityDescriptor: SetEntriesInAcl: Error %u\n", rcWin); + rc = RTErrConvertFromWin32(rcWin); + } + if (pSD) + LocalFree(pSD); + } + else + { + if (rcWin == ERROR_FILE_NOT_FOUND) + VGSvcError("AddAceToObjectsSecurityDescriptor: Object not found/installed: %s\n", pszObjName); + else + VGSvcError("AddAceToObjectsSecurityDescriptor: GetNamedSecurityInfo: Error %u\n", rcWin); + rc = RTErrConvertFromWin32(rcWin); + } + } + else + rc = VINF_SUCCESS; /* fake it */ + return rc; +} + + +/** Reports our current status to the SCM. */ +static BOOL vgsvcWinSetStatus(DWORD dwStatus, DWORD dwCheckPoint) +{ + if (g_hWinServiceStatus == NULL) /* Program could be in testing mode, so no service environment available. */ + return FALSE; + + VGSvcVerbose(2, "Setting service status to: %ld\n", dwStatus); + g_dwWinServiceLastStatus = dwStatus; + + SERVICE_STATUS ss; + RT_ZERO(ss); + + ss.dwServiceType = SERVICE_WIN32_OWN_PROCESS; + ss.dwCurrentState = dwStatus; + /* Don't accept controls when in start pending state. */ + if (ss.dwCurrentState != SERVICE_START_PENDING) + { + ss.dwControlsAccepted = SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN; + + /* Don't use SERVICE_ACCEPT_SESSIONCHANGE on Windows 2000 or earlier. This makes SCM angry. */ + char szOSVersion[32]; + int rc = RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szOSVersion, sizeof(szOSVersion)); + if (RT_SUCCESS(rc)) + { + if (RTStrVersionCompare(szOSVersion, "5.1") >= 0) + ss.dwControlsAccepted |= SERVICE_ACCEPT_SESSIONCHANGE; + } + else + VGSvcError("Error determining OS version, rc=%Rrc\n", rc); + } + + ss.dwWin32ExitCode = NO_ERROR; + ss.dwServiceSpecificExitCode = 0; /* Not used */ + ss.dwCheckPoint = dwCheckPoint; + ss.dwWaitHint = 3000; + + BOOL fStatusSet = SetServiceStatus(g_hWinServiceStatus, &ss); + if (!fStatusSet) + VGSvcError("Error reporting service status=%ld (controls=%x, checkpoint=%ld) to SCM: %ld\n", + dwStatus, ss.dwControlsAccepted, dwCheckPoint, GetLastError()); + return fStatusSet; +} + + +/** + * Reports SERVICE_STOP_PENDING to SCM. + * + * @param uCheckPoint Some number. + */ +void VGSvcWinSetStopPendingStatus(uint32_t uCheckPoint) +{ + vgsvcWinSetStatus(SERVICE_STOP_PENDING, uCheckPoint); +} + + +static RTEXITCODE vgsvcWinSetDesc(SC_HANDLE hService) +{ + /* On W2K+ there's ChangeServiceConfig2() which lets us set some fields + like a longer service description. */ + if (g_pfnChangeServiceConfig2A) + { + /** @todo On Vista+ SERVICE_DESCRIPTION also supports localized strings! */ + SERVICE_DESCRIPTION desc; + desc.lpDescription = VBOXSERVICE_DESCRIPTION; + if (!g_pfnChangeServiceConfig2A(hService, SERVICE_CONFIG_DESCRIPTION, &desc)) + { + VGSvcError("Cannot set the service description! Error: %ld\n", GetLastError()); + return RTEXITCODE_FAILURE; + } + } + return RTEXITCODE_SUCCESS; +} + + +/** + * Installs the service. + */ +RTEXITCODE VGSvcWinInstall(void) +{ + VGSvcVerbose(1, "Installing service ...\n"); + + TCHAR imagePath[MAX_PATH] = { 0 }; + GetModuleFileName(NULL, imagePath, sizeof(imagePath)); + + SC_HANDLE hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); + if (hSCManager == NULL) + { + VGSvcError("Could not open SCM! Error: %ld\n", GetLastError()); + return RTEXITCODE_FAILURE; + } + + RTEXITCODE rc = RTEXITCODE_SUCCESS; + SC_HANDLE hService = CreateService(hSCManager, + VBOXSERVICE_NAME, VBOXSERVICE_FRIENDLY_NAME, + SERVICE_ALL_ACCESS, + SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS, + SERVICE_DEMAND_START, SERVICE_ERROR_NORMAL, + imagePath, NULL, NULL, NULL, NULL, NULL); + if (hService != NULL) + VGSvcVerbose(0, "Service successfully installed!\n"); + else + { + DWORD dwErr = GetLastError(); + switch (dwErr) + { + case ERROR_SERVICE_EXISTS: + VGSvcVerbose(1, "Service already exists, just updating the service config.\n"); + hService = OpenService(hSCManager, VBOXSERVICE_NAME, SERVICE_ALL_ACCESS); + if (hService) + { + if (ChangeServiceConfig(hService, + SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS, + SERVICE_DEMAND_START, + SERVICE_ERROR_NORMAL, + imagePath, + NULL, + NULL, + NULL, + NULL, + NULL, + VBOXSERVICE_FRIENDLY_NAME)) + VGSvcVerbose(1, "The service config has been successfully updated.\n"); + else + rc = VGSvcError("Could not change service config! Error: %ld\n", GetLastError()); + } + else + rc = VGSvcError("Could not open service! Error: %ld\n", GetLastError()); + break; + + default: + rc = VGSvcError("Could not create service! Error: %ld\n", dwErr); + break; + } + } + + if (rc == RTEXITCODE_SUCCESS) + rc = vgsvcWinSetDesc(hService); + + CloseServiceHandle(hService); + CloseServiceHandle(hSCManager); + return rc; +} + +/** + * Uninstalls the service. + */ +RTEXITCODE VGSvcWinUninstall(void) +{ + VGSvcVerbose(1, "Uninstalling service ...\n"); + + SC_HANDLE hSCManager = OpenSCManager(NULL,NULL,SC_MANAGER_ALL_ACCESS); + if (hSCManager == NULL) + { + VGSvcError("Could not open SCM! Error: %d\n", GetLastError()); + return RTEXITCODE_FAILURE; + } + + RTEXITCODE rcExit; + SC_HANDLE hService = OpenService(hSCManager, VBOXSERVICE_NAME, SERVICE_ALL_ACCESS ); + if (hService != NULL) + { + if (DeleteService(hService)) + { + /* + * ??? + */ + HKEY hKey = NULL; + if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, + "SYSTEM\\CurrentControlSet\\Services\\EventLog\\System", + 0, + KEY_ALL_ACCESS, + &hKey) + == ERROR_SUCCESS) + { + RegDeleteKey(hKey, VBOXSERVICE_NAME); + RegCloseKey(hKey); + } + + VGSvcVerbose(0, "Service successfully uninstalled!\n"); + rcExit = RTEXITCODE_SUCCESS; + } + else + rcExit = VGSvcError("Could not remove service! Error: %d\n", GetLastError()); + CloseServiceHandle(hService); + } + else + rcExit = VGSvcError("Could not open service! Error: %d\n", GetLastError()); + CloseServiceHandle(hSCManager); + + return rcExit; +} + + +static int vgsvcWinStart(void) +{ + int rc = VINF_SUCCESS; + + /* + * Create a well-known SID for the "Builtin Users" group and modify the ACE + * for the shared folders miniport redirector DN (whatever DN means). + */ + PSID pBuiltinUsersSID = NULL; + SID_IDENTIFIER_AUTHORITY SIDAuthWorld = SECURITY_LOCAL_SID_AUTHORITY; + if (AllocateAndInitializeSid(&SIDAuthWorld, 1, SECURITY_LOCAL_RID, 0, 0, 0, 0, 0, 0, 0, &pBuiltinUsersSID)) + { + rc = vgsvcWinAddAceToObjectsSecurityDescriptor(TEXT("\\\\.\\VBoxMiniRdrDN"), SE_FILE_OBJECT, + (LPTSTR)pBuiltinUsersSID, TRUSTEE_IS_SID, + FILE_GENERIC_READ | FILE_GENERIC_WRITE, SET_ACCESS, NO_INHERITANCE); + /* If we don't find our "VBoxMiniRdrDN" (for Shared Folders) object above, + don't report an error; it just might be not installed. Otherwise this + would cause the SCM to hang on starting up the service. */ + if (rc == VERR_FILE_NOT_FOUND || rc == VERR_PATH_NOT_FOUND) + rc = VINF_SUCCESS; + + FreeSid(pBuiltinUsersSID); + } + else + rc = RTErrConvertFromWin32(GetLastError()); + if (RT_SUCCESS(rc)) + { + /* + * Start the service. + */ + vgsvcWinSetStatus(SERVICE_START_PENDING, 0); + + rc = VGSvcStartServices(); + if (RT_SUCCESS(rc)) + { + vgsvcWinSetStatus(SERVICE_RUNNING, 0); + VGSvcMainWait(); + } + else + { + vgsvcWinSetStatus(SERVICE_STOPPED, 0); +#if 0 /** @todo r=bird: Enable this if SERVICE_CONTROL_STOP isn't triggered automatically */ + VGSvcStopServices(); +#endif + } + } + else + vgsvcWinSetStatus(SERVICE_STOPPED, 0); + + if (RT_FAILURE(rc)) + VGSvcError("Service failed to start with rc=%Rrc!\n", rc); + + return rc; +} + + +/** + * Call StartServiceCtrlDispatcher. + * + * The main() thread invokes this when not started in foreground mode. It + * won't return till the service is being shutdown (unless start up fails). + * + * @returns RTEXITCODE_SUCCESS on normal return after service shutdown. + * Something else on failure, error will have been reported. + */ +RTEXITCODE VGSvcWinEnterCtrlDispatcher(void) +{ + if (!StartServiceCtrlDispatcher(&g_aServiceTable[0])) + return VGSvcError("StartServiceCtrlDispatcher: %u. Please start %s with option -f (foreground)!\n", + GetLastError(), g_pszProgName); + return RTEXITCODE_SUCCESS; +} + + +/** + * Event code to description. + * + * @returns String. + * @param dwEvent The event code. + */ +static const char *vgsvcWTSStateToString(DWORD dwEvent) +{ + switch (dwEvent) + { + case WTS_CONSOLE_CONNECT: return "A session was connected to the console terminal"; + case WTS_CONSOLE_DISCONNECT: return "A session was disconnected from the console terminal"; + case WTS_REMOTE_CONNECT: return "A session connected to the remote terminal"; + case WTS_REMOTE_DISCONNECT: return "A session was disconnected from the remote terminal"; + case WTS_SESSION_LOGON: return "A user has logged on to a session"; + case WTS_SESSION_LOGOFF: return "A user has logged off the session"; + case WTS_SESSION_LOCK: return "A session has been locked"; + case WTS_SESSION_UNLOCK: return "A session has been unlocked"; + case WTS_SESSION_REMOTE_CONTROL: return "A session has changed its remote controlled status"; +#ifdef WTS_SESSION_CREATE + case WTS_SESSION_CREATE: return "A session has been created"; +#endif +#ifdef WTS_SESSION_TERMINATE + case WTS_SESSION_TERMINATE: return "The session has been terminated"; +#endif + default: return "Uknonwn state"; + } +} + + +/** + * Common control handler. + * + * @returns Return code for NT5+. + * @param dwControl The control code. + */ +static DWORD vgsvcWinCtrlHandlerCommon(DWORD dwControl) +{ + DWORD rcRet = NO_ERROR; + switch (dwControl) + { + case SERVICE_CONTROL_INTERROGATE: + vgsvcWinSetStatus(g_dwWinServiceLastStatus, 0); + break; + + case SERVICE_CONTROL_STOP: + case SERVICE_CONTROL_SHUTDOWN: + { + vgsvcWinSetStatus(SERVICE_STOP_PENDING, 0); + + int rc2 = VGSvcStopServices(); + if (RT_FAILURE(rc2)) + rcRet = ERROR_GEN_FAILURE; + else + { + rc2 = VGSvcReportStatus(VBoxGuestFacilityStatus_Terminated); + AssertRC(rc2); + } + + vgsvcWinSetStatus(SERVICE_STOPPED, 0); + break; + } + + default: + VGSvcVerbose(1, "Control handler: Function not implemented: %#x\n", dwControl); + rcRet = ERROR_CALL_NOT_IMPLEMENTED; + break; + } + + return rcRet; +} + + +/** + * Callback registered by RegisterServiceCtrlHandler on NT4 and earlier. + */ +static VOID WINAPI vgsvcWinCtrlHandlerNt4(DWORD dwControl) RT_NOTHROW_DEF +{ + VGSvcVerbose(2, "Control handler (NT4): dwControl=%#x\n", dwControl); + vgsvcWinCtrlHandlerCommon(dwControl); +} + + +/** + * Callback registered by RegisterServiceCtrlHandler on NT5 and later. + */ +static DWORD WINAPI +vgsvcWinCtrlHandlerNt5Plus(DWORD dwControl, DWORD dwEventType, LPVOID lpEventData, LPVOID lpContext) RT_NOTHROW_DEF +{ + VGSvcVerbose(2, "Control handler: dwControl=%#x, dwEventType=%#x\n", dwControl, dwEventType); + RT_NOREF1(lpContext); + + switch (dwControl) + { + default: + return vgsvcWinCtrlHandlerCommon(dwControl); + + case SERVICE_CONTROL_SESSIONCHANGE: /* Only Windows 2000 and up. */ + { + AssertPtr(lpEventData); + PWTSSESSION_NOTIFICATION pNotify = (PWTSSESSION_NOTIFICATION)lpEventData; + Assert(pNotify->cbSize == sizeof(WTSSESSION_NOTIFICATION)); + + VGSvcVerbose(1, "Control handler: %s (Session=%ld, Event=%#x)\n", + vgsvcWTSStateToString(dwEventType), pNotify->dwSessionId, dwEventType); + + /* Handle all events, regardless of dwEventType. */ + int rc2 = VGSvcVMInfoSignal(); + AssertRC(rc2); + + return NO_ERROR; + } + } +} + + +static void WINAPI vgsvcWinMain(DWORD argc, LPTSTR *argv) +{ + RT_NOREF2(argc, argv); + VGSvcVerbose(2, "Registering service control handler ...\n"); + if (g_pfnRegisterServiceCtrlHandlerExA) + g_hWinServiceStatus = g_pfnRegisterServiceCtrlHandlerExA(VBOXSERVICE_NAME, vgsvcWinCtrlHandlerNt5Plus, NULL); + else + g_hWinServiceStatus = RegisterServiceCtrlHandlerA(VBOXSERVICE_NAME, vgsvcWinCtrlHandlerNt4); + if (g_hWinServiceStatus != NULL) + { + VGSvcVerbose(2, "Service control handler registered.\n"); + vgsvcWinStart(); + } + else + { + DWORD dwErr = GetLastError(); + switch (dwErr) + { + case ERROR_INVALID_NAME: + VGSvcError("Invalid service name!\n"); + break; + case ERROR_SERVICE_DOES_NOT_EXIST: + VGSvcError("Service does not exist!\n"); + break; + default: + VGSvcError("Could not register service control handle! Error: %ld\n", dwErr); + break; + } + } +} + |