X-Git-Url: http://git.iain.cx/?a=blobdiff_plain;f=service.cpp;h=21726df7f90ad7b2b661791b6e5fa75796730487;hb=40792fac2ef98e69c331b9cd5a9279dc3e1eb730;hp=60a8db0b32cf43d9ca3cda01f6381754ad60e029;hpb=90b896a26a68724149b544d8063cd6fde77f5ab5;p=nssm.git diff --git a/service.cpp b/service.cpp index 60a8db0..21726df 100644 --- a/service.cpp +++ b/service.cpp @@ -1,5 +1,6 @@ #include "nssm.h" +bool is_admin; SERVICE_STATUS service_status; SERVICE_STATUS_HANDLE service_handle; HANDLE process_handle; @@ -13,6 +14,7 @@ bool stopping; unsigned long throttle_delay; HANDLE throttle_timer; LARGE_INTEGER throttle_duetime; +FILETIME creation_time; static enum { NSSM_EXIT_RESTART, NSSM_EXIT_IGNORE, NSSM_EXIT_REALLY, NSSM_EXIT_UNCLEAN } exit_actions; static const char *exit_action_strings[] = { "Restart", "Ignore", "Exit", "Suicide", 0 }; @@ -29,7 +31,7 @@ static inline int throttle_milliseconds() { SC_HANDLE open_service_manager() { SC_HANDLE ret = OpenSCManager(0, SERVICES_ACTIVE_DATABASE, SC_MANAGER_ALL_ACCESS); if (! ret) { - log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENSCMANAGER_FAILED, 0); + if (is_admin) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENSCMANAGER_FAILED, 0); return 0; } @@ -38,7 +40,7 @@ SC_HANDLE open_service_manager() { /* About to install the service */ int pre_install_service(int argc, char **argv) { - /* Show the dialogue box if we didn't give the */ + /* Show the dialogue box if we didn't give the service name and path */ if (argc < 2) return nssm_gui(IDD_INSTALL, argv[0]); /* Arguments are optional */ @@ -77,7 +79,7 @@ int pre_remove_service(int argc, char **argv) { /* Show dialogue box if we didn't pass service name and "confirm" */ if (argc < 2) return nssm_gui(IDD_REMOVE, argv[0]); if (str_equiv(argv[1], "confirm")) return remove_service(argv[0]); - fprintf(stderr, "To remove a service without confirmation: nssm remove confirm\n"); + print_message(stderr, NSSM_MESSAGE_PRE_REMOVE_SERVICE); return 100; } @@ -86,24 +88,23 @@ int install_service(char *name, char *exe, char *flags) { /* Open service manager */ SC_HANDLE services = open_service_manager(); if (! services) { - fprintf(stderr, "Error opening service manager!\n"); + print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED); return 2; } - + /* Get path of this program */ char path[MAX_PATH]; GetModuleFileName(0, path, MAX_PATH); /* Construct command */ char command[CMD_LENGTH]; - size_t runlen = strlen(NSSM_RUN); size_t pathlen = strlen(path); - if (pathlen + runlen + 2 >= VALUE_LENGTH) { - fprintf(stderr, "The full path to " NSSM " is too long!\n"); + if (pathlen + 1 >= VALUE_LENGTH) { + print_message(stderr, NSSM_MESSAGE_PATH_TOO_LONG, NSSM); return 3; } - if (_snprintf(command, sizeof(command), "\"%s\" %s", path, NSSM_RUN) < 0) { - fprintf(stderr, "Out of memory for ImagePath!\n"); + if (_snprintf(command, sizeof(command), "\"%s\"", path) < 0) { + print_message(stderr, NSSM_MESSAGE_OUT_OF_MEMORY_FOR_IMAGEPATH); return 4; } @@ -118,24 +119,26 @@ int install_service(char *name, char *exe, char *flags) { /* Create the service */ SC_HANDLE service = CreateService(services, name, name, SC_MANAGER_ALL_ACCESS, SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START, SERVICE_ERROR_NORMAL, command, 0, 0, 0, 0, 0); if (! service) { - fprintf(stderr, "Error creating service!\n"); + print_message(stderr, NSSM_MESSAGE_CREATESERVICE_FAILED); CloseServiceHandle(services); return 5; } /* Now we need to put the parameters into the registry */ if (create_parameters(name, exe, flags, dir)) { - fprintf(stderr, "Error setting startup parameters for the service!\n"); + print_message(stderr, NSSM_MESSAGE_CREATE_PARAMETERS_FAILED); DeleteService(service); CloseServiceHandle(services); return 6; } + set_service_recovery(service, name); + /* Cleanup */ CloseServiceHandle(service); CloseServiceHandle(services); - printf("Service \"%s\" installed successfully!\n", name); + print_message(stdout, NSSM_MESSAGE_SERVICE_INSTALLED, name); return 0; } @@ -144,21 +147,21 @@ int remove_service(char *name) { /* Open service manager */ SC_HANDLE services = open_service_manager(); if (! services) { - fprintf(stderr, "Error opening service manager!\n"); + print_message(stderr, NSSM_MESSAGE_OPEN_SERVICE_MANAGER_FAILED); return 2; } - + /* Try to open the service */ SC_HANDLE service = OpenService(services, name, SC_MANAGER_ALL_ACCESS); if (! service) { - fprintf(stderr, "Can't open service!"); + print_message(stderr, NSSM_MESSAGE_OPENSERVICE_FAILED); CloseServiceHandle(services); return 3; } /* Try to delete the service */ if (! DeleteService(service)) { - fprintf(stderr, "Error deleting service!\n"); + print_message(stderr, NSSM_MESSAGE_DELETESERVICE_FAILED); CloseServiceHandle(service); CloseServiceHandle(services); return 4; @@ -168,7 +171,7 @@ int remove_service(char *name) { CloseServiceHandle(service); CloseServiceHandle(services); - printf("Service \"%s\" removed successfully!\n", name); + print_message(stdout, NSSM_MESSAGE_SERVICE_REMOVED, name); return 0; } @@ -199,14 +202,18 @@ void WINAPI service_main(unsigned long argc, char **argv) { return; } + log_service_control(service_name, 0, true); + service_status.dwCurrentState = SERVICE_START_PENDING; service_status.dwWaitHint = throttle_delay + NSSM_WAITHINT_MARGIN; SetServiceStatus(service_handle, &service_status); - /* Try to create the exit action parameters; we don't care if it fails */ - create_exit_action(argv[0], exit_action_strings[0]); + if (is_admin) { + /* Try to create the exit action parameters; we don't care if it fails */ + create_exit_action(argv[0], exit_action_strings[0]); - set_service_recovery(service_name); + set_service_recovery(0, service_name); + } /* Used for signalling a resume if the service pauses when throttled. */ throttle_timer = CreateWaitableTimer(0, 1, 0); @@ -218,20 +225,34 @@ void WINAPI service_main(unsigned long argc, char **argv) { } /* Make sure service recovery actions are taken where necessary */ -void set_service_recovery(char *service_name) { - SC_HANDLE services = open_service_manager(); - if (! services) return; +void set_service_recovery(SC_HANDLE service, char *service_name) { + SC_HANDLE services = 0; - SC_HANDLE service = OpenService(services, service_name, SC_MANAGER_ALL_ACCESS); - if (! service) return; - return; + if (! service) { + services = open_service_manager(); + if (! services) return; + + service = OpenService(services, service_name, SC_MANAGER_ALL_ACCESS); + if (! service) return; + } SERVICE_FAILURE_ACTIONS_FLAG flag; ZeroMemory(&flag, sizeof(flag)); flag.fFailureActionsOnNonCrashFailures = true; /* This functionality was added in Vista so the call may fail */ - ChangeServiceConfig2(service, SERVICE_CONFIG_FAILURE_ACTIONS_FLAG, &flag); + if (! ChangeServiceConfig2(service, SERVICE_CONFIG_FAILURE_ACTIONS_FLAG, &flag)) { + unsigned long error = GetLastError(); + /* Pre-Vista we expect to fail with ERROR_INVALID_LEVEL */ + if (error != ERROR_INVALID_LEVEL) { + log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CHANGESERVICECONFIG2_FAILED, service_name, error_string(error), 0); + } + } + + if (services) { + CloseServiceHandle(service); + CloseServiceHandle(services); + } } int monitor_service() { @@ -253,15 +274,63 @@ int monitor_service() { return 0; } +char *service_control_text(unsigned long control) { + switch (control) { + /* HACK: there is no SERVICE_CONTROL_START constant */ + case 0: return "START"; + case SERVICE_CONTROL_STOP: return "STOP"; + case SERVICE_CONTROL_SHUTDOWN: return "SHUTDOWN"; + case SERVICE_CONTROL_PAUSE: return "PAUSE"; + case SERVICE_CONTROL_CONTINUE: return "CONTINUE"; + case SERVICE_CONTROL_INTERROGATE: return "INTERROGATE"; + default: return 0; + } +} + +void log_service_control(char *service_name, unsigned long control, bool handled) { + char *text = service_control_text(control); + unsigned long event; + + if (! text) { + /* "0x" + 8 x hex + NULL */ + text = (char *) HeapAlloc(GetProcessHeap(), 0, 11); + if (! text) { + log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "control code", "log_service_control", 0); + return; + } + if (_snprintf(text, 11, "0x%08x", control) < 0) { + log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "control code", "log_service_control", 0); + HeapFree(GetProcessHeap(), 0, text); + return; + } + + event = NSSM_EVENT_SERVICE_CONTROL_UNKNOWN; + } + else if (handled) event = NSSM_EVENT_SERVICE_CONTROL_HANDLED; + else event = NSSM_EVENT_SERVICE_CONTROL_NOT_HANDLED; + + log_event(EVENTLOG_INFORMATION_TYPE, event, service_name, text, 0); + + if (event == NSSM_EVENT_SERVICE_CONTROL_UNKNOWN) { + HeapFree(GetProcessHeap(), 0, text); + } +} + /* Service control handler */ unsigned long WINAPI service_control_handler(unsigned long control, unsigned long event, void *data, void *context) { switch (control) { + case SERVICE_CONTROL_INTERROGATE: + /* We always keep the service status up-to-date so this is a no-op. */ + return NO_ERROR; + case SERVICE_CONTROL_SHUTDOWN: case SERVICE_CONTROL_STOP: + log_service_control(service_name, control, true); stop_service(0, true, true); return NO_ERROR; case SERVICE_CONTROL_CONTINUE: + log_service_control(service_name, control, true); if (! throttle_timer) return ERROR_CALL_NOT_IMPLEMENTED; throttle = 0; ZeroMemory(&throttle_duetime, sizeof(throttle_duetime)); @@ -277,10 +346,12 @@ unsigned long WINAPI service_control_handler(unsigned long control, unsigned lon We don't accept pause messages but it isn't possible to register only for continue messages so we have to handle this case. */ + log_service_control(service_name, control, false); return ERROR_CALL_NOT_IMPLEMENTED; } /* Unknown control */ + log_service_control(service_name, control, false); return ERROR_CALL_NOT_IMPLEMENTED; } @@ -300,7 +371,8 @@ int start_service() { ZeroMemory(&pi, sizeof(pi)); /* Get startup parameters */ - int ret = get_parameters(service_name, exe, sizeof(exe), flags, sizeof(flags), dir, sizeof(dir), &throttle_delay); + char *env = 0; + int ret = get_parameters(service_name, exe, sizeof(exe), flags, sizeof(flags), dir, sizeof(dir), &env, &throttle_delay, &si); if (ret) { log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_PARAMETERS_FAILED, service_name, 0); return stop_service(2, true, true); @@ -308,20 +380,29 @@ int start_service() { /* Launch executable with arguments */ char cmd[CMD_LENGTH]; - if (_snprintf(cmd, sizeof(cmd), "%s %s", exe, flags) < 0) { + if (_snprintf(cmd, sizeof(cmd), "\"%s\" %s", exe, flags) < 0) { log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, "command line", "start_service", 0); + close_output_handles(&si); return stop_service(2, true, true); } throttle_restart(); - if (! CreateProcess(0, cmd, 0, 0, false, 0, 0, dir, &si, &pi)) { - log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED, service_name, exe, error_string(GetLastError()), 0); + bool inherit_handles = (si.dwFlags & STARTF_USESTDHANDLES); + if (! CreateProcess(0, cmd, 0, 0, inherit_handles, 0, env, dir, &si, &pi)) { + unsigned long error = GetLastError(); + if (error == ERROR_INVALID_PARAMETER && env) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED_INVALID_ENVIRONMENT, service_name, exe, NSSM_REG_ENV, 0); + else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_CREATEPROCESS_FAILED, service_name, exe, error_string(error), 0); + close_output_handles(&si); return stop_service(3, true, true); } process_handle = pi.hProcess; pid = pi.dwProcessId; + if (get_process_creation_time(process_handle, &creation_time)) ZeroMemory(&creation_time, sizeof(creation_time)); + + close_output_handles(&si); + /* Signal successful start */ service_status.dwCurrentState = SERVICE_RUNNING; SetServiceStatus(service_handle, &service_status); @@ -346,12 +427,11 @@ int stop_service(unsigned long exitcode, bool graceful, bool default_action) { SetServiceStatus(service_handle, &service_status); } - /* Nothing to do if server isn't running */ + /* Nothing to do if service isn't running */ if (pid) { - /* Shut down server */ + /* Shut down service */ log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_TERMINATEPROCESS, service_name, exe, 0); kill_process(service_name, process_handle, pid, 0); - process_handle = 0; } else log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_PROCESS_ALREADY_STOPPED, service_name, exe, 0); @@ -384,10 +464,23 @@ void CALLBACK end_service(void *arg, unsigned char why) { /* Check exit code */ unsigned long exitcode = 0; + char code[16]; + FILETIME exit_time; GetExitCodeProcess(process_handle, &exitcode); + if (exitcode == STILL_ACTIVE || get_process_exit_time(process_handle, &exit_time)) GetSystemTimeAsFileTime(&exit_time); + CloseHandle(process_handle); + + /* + Log that the service ended BEFORE logging about killing the process + tree. See below for the possible values of the why argument. + */ + if (! why) { + _snprintf(code, sizeof(code), "%d", exitcode); + log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ENDED_SERVICE, exe, service_name, code, 0); + } /* Clean up. */ - kill_process_tree(service_name, pid, exitcode, pid); + kill_process_tree(service_name, pid, exitcode, pid, &creation_time, &exit_time); /* The why argument is true if our wait timed out or false otherwise. @@ -397,10 +490,6 @@ void CALLBACK end_service(void *arg, unsigned char why) { */ if (why) return; - char code[16]; - _snprintf(code, sizeof(code), "%d", exitcode); - log_event(EVENTLOG_INFORMATION_TYPE, NSSM_EVENT_ENDED_SERVICE, exe, service_name, code, 0); - /* What action should we take? */ int action = NSSM_EXIT_RESTART; unsigned char action_string[ACTION_LEN];