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Diffstat (limited to 'bin/bbackupd/Win32ServiceFunctions.cpp')
| -rw-r--r-- | bin/bbackupd/Win32ServiceFunctions.cpp | 384 |
1 files changed, 384 insertions, 0 deletions
diff --git a/bin/bbackupd/Win32ServiceFunctions.cpp b/bin/bbackupd/Win32ServiceFunctions.cpp new file mode 100644 index 00000000..2df914a7 --- /dev/null +++ b/bin/bbackupd/Win32ServiceFunctions.cpp @@ -0,0 +1,384 @@ +//*************************************************************** +// From the book "Win32 System Services: The Heart of Windows 98 +// and Windows 2000" +// by Marshall Brain +// Published by Prentice Hall +// Copyright 1995 Prentice Hall. +// +// This code implements the Windows API Service interface +// for the Box Backup for Windows native port. +// Adapted for Box Backup by Nick Knight. +//*************************************************************** + +#ifdef WIN32 + +#include "Box.h" + +#ifdef HAVE_UNISTD_H + #include <unistd.h> +#endif +#ifdef HAVE_PROCESS_H + #include <process.h> +#endif + +extern void TerminateService(void); +extern unsigned int WINAPI RunService(LPVOID lpParameter); + +// Global variables + +TCHAR* gServiceName = TEXT("Box Backup Service"); +SERVICE_STATUS gServiceStatus; +SERVICE_STATUS_HANDLE gServiceStatusHandle = 0; +HANDLE gStopServiceEvent = 0; +DWORD gServiceReturnCode = 0; + +#define SERVICE_NAME "boxbackup" + +void ShowMessage(char *s) +{ + MessageBox(0, s, "Box Backup Message", + MB_OK | MB_SETFOREGROUND | MB_DEFAULT_DESKTOP_ONLY); +} + +void ErrorHandler(char *s, DWORD err) +{ + char buf[256]; + memset(buf, 0, sizeof(buf)); + _snprintf(buf, sizeof(buf)-1, "%s: %s", s, + GetErrorMessage(err).c_str()); + BOX_ERROR(buf); + MessageBox(0, buf, "Error", + MB_OK | MB_SETFOREGROUND | MB_DEFAULT_DESKTOP_ONLY); + ExitProcess(err); +} + +void WINAPI ServiceControlHandler( DWORD controlCode ) +{ + switch ( controlCode ) + { + case SERVICE_CONTROL_INTERROGATE: + break; + + case SERVICE_CONTROL_SHUTDOWN: + case SERVICE_CONTROL_STOP: + Beep(1000,100); + TerminateService(); + gServiceStatus.dwCurrentState = SERVICE_STOP_PENDING; + SetServiceStatus(gServiceStatusHandle, &gServiceStatus); + + SetEvent(gStopServiceEvent); + return; + + case SERVICE_CONTROL_PAUSE: + break; + + case SERVICE_CONTROL_CONTINUE: + break; + + default: + if ( controlCode >= 128 && controlCode <= 255 ) + // user defined control code + break; + else + // unrecognised control code + break; + } + + SetServiceStatus( gServiceStatusHandle, &gServiceStatus ); +} + +// ServiceMain is called when the SCM wants to +// start the service. When it returns, the service +// has stopped. It therefore waits on an event +// just before the end of the function, and +// that event gets set when it is time to stop. +// It also returns on any error because the +// service cannot start if there is an eror. + +static char* spConfigFileName; + +VOID ServiceMain(DWORD argc, LPTSTR *argv) +{ + // initialise service status + gServiceStatus.dwServiceType = SERVICE_WIN32; + gServiceStatus.dwCurrentState = SERVICE_STOPPED; + gServiceStatus.dwControlsAccepted = 0; + gServiceStatus.dwWin32ExitCode = NO_ERROR; + gServiceStatus.dwServiceSpecificExitCode = NO_ERROR; + gServiceStatus.dwCheckPoint = 0; + gServiceStatus.dwWaitHint = 0; + + gServiceStatusHandle = RegisterServiceCtrlHandler(gServiceName, + ServiceControlHandler); + + if (gServiceStatusHandle) + { + // service is starting + gServiceStatus.dwCurrentState = SERVICE_START_PENDING; + SetServiceStatus(gServiceStatusHandle, &gServiceStatus); + + // do initialisation here + gStopServiceEvent = CreateEvent(0, TRUE, FALSE, 0); + if (!gStopServiceEvent) + { + gServiceStatus.dwControlsAccepted &= + ~(SERVICE_ACCEPT_STOP | + SERVICE_ACCEPT_SHUTDOWN); + gServiceStatus.dwCurrentState = SERVICE_STOPPED; + SetServiceStatus(gServiceStatusHandle, &gServiceStatus); + return; + } + + HANDLE ourThread = (HANDLE)_beginthreadex( + NULL, + 0, + RunService, + spConfigFileName, + CREATE_SUSPENDED, + NULL); + + SetThreadPriority(ourThread, THREAD_PRIORITY_LOWEST); + ResumeThread(ourThread); + + // we are now running so tell the SCM + gServiceStatus.dwControlsAccepted |= + (SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN); + gServiceStatus.dwCurrentState = SERVICE_RUNNING; + SetServiceStatus(gServiceStatusHandle, &gServiceStatus); + + // do cleanup here + WaitForSingleObject(gStopServiceEvent, INFINITE); + CloseHandle(gStopServiceEvent); + gStopServiceEvent = 0; + + // service was stopped + gServiceStatus.dwCurrentState = SERVICE_STOP_PENDING; + SetServiceStatus(gServiceStatusHandle, &gServiceStatus); + + // service is now stopped + gServiceStatus.dwControlsAccepted &= + ~(SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN); + + gServiceStatus.dwCurrentState = SERVICE_STOPPED; + + if (gServiceReturnCode != 0) + { + gServiceStatus.dwWin32ExitCode = ERROR_SERVICE_SPECIFIC_ERROR; + gServiceStatus.dwServiceSpecificExitCode = gServiceReturnCode; + } + + SetServiceStatus(gServiceStatusHandle, &gServiceStatus); + } +} + +int OurService(const char* pConfigFileName) +{ + spConfigFileName = strdup(pConfigFileName); + + SERVICE_TABLE_ENTRY serviceTable[] = + { + { SERVICE_NAME, (LPSERVICE_MAIN_FUNCTION) ServiceMain }, + { NULL, NULL } + }; + BOOL success; + + // Register with the SCM + success = StartServiceCtrlDispatcher(serviceTable); + + free(spConfigFileName); + spConfigFileName = NULL; + + if (!success) + { + ErrorHandler("Failed to start service. Did you start " + "Box Backup from the Service Control Manager? " + "(StartServiceCtrlDispatcher)", GetLastError()); + return 1; + } + + return 0; +} + +int InstallService(const char* pConfigFileName, const std::string& rServiceName) +{ + if (pConfigFileName != NULL) + { + EMU_STRUCT_STAT st; + + if (emu_stat(pConfigFileName, &st) != 0) + { + BOX_LOG_SYS_ERROR("Failed to open configuration file " + "'" << pConfigFileName << "'"); + return 1; + } + + if (!(st.st_mode & S_IFREG)) + { + + BOX_ERROR("Failed to open configuration file '" << + pConfigFileName << "': not a file"); + return 1; + } + } + + SC_HANDLE scm = OpenSCManager(0, 0, SC_MANAGER_CREATE_SERVICE); + + if (!scm) + { + BOX_ERROR("Failed to open service control manager: " << + GetErrorMessage(GetLastError())); + return 1; + } + + char cmd[MAX_PATH]; + GetModuleFileName(NULL, cmd, sizeof(cmd)-1); + cmd[sizeof(cmd)-1] = 0; + + std::string cmdWithArgs(cmd); + cmdWithArgs += " -s -S \"" + rServiceName + "\""; + + if (pConfigFileName != NULL) + { + cmdWithArgs += " \""; + cmdWithArgs += pConfigFileName; + cmdWithArgs += "\""; + } + + std::string serviceDesc = "Box Backup (" + rServiceName + ")"; + + SC_HANDLE newService = CreateService( + scm, + rServiceName.c_str(), + serviceDesc.c_str(), + SERVICE_ALL_ACCESS, + SERVICE_WIN32_OWN_PROCESS, + SERVICE_AUTO_START, + SERVICE_ERROR_NORMAL, + cmdWithArgs.c_str(), + 0,0,0,0,0); + + DWORD err = GetLastError(); + CloseServiceHandle(scm); + + if (!newService) + { + switch (err) + { + case ERROR_SERVICE_EXISTS: + { + BOX_ERROR("Failed to create Box Backup " + "service: it already exists"); + } + break; + + case ERROR_SERVICE_MARKED_FOR_DELETE: + { + BOX_ERROR("Failed to create Box Backup " + "service: it is waiting to be deleted"); + } + break; + + case ERROR_DUPLICATE_SERVICE_NAME: + { + BOX_ERROR("Failed to create Box Backup " + "service: a service with this name " + "already exists"); + } + break; + + default: + { + BOX_ERROR("Failed to create Box Backup " + "service: error " << + GetErrorMessage(GetLastError())); + } + } + + return 1; + } + + BOX_INFO("Created Box Backup service"); + + SERVICE_DESCRIPTION desc; + desc.lpDescription = "Backs up your data files over the Internet"; + + if (!ChangeServiceConfig2(newService, SERVICE_CONFIG_DESCRIPTION, + &desc)) + { + BOX_WARNING("Failed to set description for Box Backup " + "service: " << GetErrorMessage(GetLastError())); + } + + CloseServiceHandle(newService); + + return 0; +} + +int RemoveService(const std::string& rServiceName) +{ + SC_HANDLE scm = OpenSCManager(0,0,SC_MANAGER_CREATE_SERVICE); + + if (!scm) + { + BOX_ERROR("Failed to open service control manager: " << + GetErrorMessage(GetLastError())); + return 1; + } + + SC_HANDLE service = OpenService(scm, rServiceName.c_str(), + SERVICE_ALL_ACCESS|DELETE); + DWORD err = GetLastError(); + CloseServiceHandle(scm); + + if (!service) + { + if (err == ERROR_SERVICE_DOES_NOT_EXIST || + err == ERROR_IO_PENDING) + // hello microsoft? anyone home? + { + BOX_ERROR("Failed to open Box Backup service: " + "not installed or not found"); + } + else + { + BOX_ERROR("Failed to open Box Backup service: " << + GetErrorMessage(err)); + } + return 1; + } + + SERVICE_STATUS status; + if (!ControlService(service, SERVICE_CONTROL_STOP, &status)) + { + err = GetLastError(); + if (err != ERROR_SERVICE_NOT_ACTIVE) + { + BOX_WARNING("Failed to stop Box Backup service: " << + GetErrorMessage(err)); + } + } + + BOOL deleted = DeleteService(service); + err = GetLastError(); + CloseServiceHandle(service); + + if (deleted) + { + BOX_INFO("Box Backup service deleted"); + return 0; + } + else if (err == ERROR_SERVICE_MARKED_FOR_DELETE) + { + BOX_ERROR("Failed to remove Box Backup service: " + "it is already being deleted"); + } + else + { + BOX_ERROR("Failed to remove Box Backup service: " << + GetErrorMessage(err)); + } + + return 1; +} + +#endif // WIN32 |