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94de8923dba848c60553c4f3cd594f45875cc428
apache/server/mpm/winnt/service.c
Ryan Bloom ba4014adba Port the -k config option to Apache 2.0. This allows users to reconfigure 
their service after it has been installed.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@94113 13f79535-47bb-0310-9956-ffa450edef68
2002-03-22 01:28:01 +00:00

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/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* Portions of this software are based upon public domain software
* originally written at the National Center for Supercomputing Applications,
* University of Illinois, Urbana-Champaign.
*/
/* This module ALONE requires the window message API from user.h
* and the default APR include of windows.h will omit it, so
* preload the API symbols now...
*/
#define CORE_PRIVATE
#define _WINUSER_
#include "httpd.h"
#include "http_log.h"
#include "mpm_winnt.h"
#include "apr_strings.h"
#include "apr_lib.h"
#ifdef NOUSER
#undef NOUSER
#endif
#undef _WINUSER_
#include <winuser.h>
static char *mpm_service_name = NULL;
static char *mpm_display_name = NULL;
static struct
{
HANDLE mpm_thread; /* primary thread handle of the apache server */
HANDLE service_thread; /* thread service/monitor handle */
DWORD service_thread_id;/* thread service/monitor ID */
HANDLE service_init; /* controller thread init mutex */
HANDLE service_term; /* NT service thread kill signal */
SERVICE_STATUS ssStatus;
SERVICE_STATUS_HANDLE hServiceStatus;
} globdat;
static int ReportStatusToSCMgr(int currentState, int exitCode, int waitHint);
/* The service configuration's is stored under the following trees:
*
* HKLM\System\CurrentControlSet\Services\[service name]
*
* \DisplayName
* \ImagePath
* \Parameters\ConfigArgs
*
* For Win9x, the launch service command is stored under:
*
* HKLM\Software\Microsoft\Windows\CurrentVersion\RunServices\[service name]
*/
/* exit() for Win32 is macro mapped (horrible, we agree) that allows us
* to catch the non-zero conditions and inform the console process that
* the application died, and hang on to the console a bit longer.
*
* The macro only maps for http_main.c and other sources that include
* the service.h header, so we best assume it's an error to exit from
* _any_ other module.
*
* If real_exit_code is reset to 0, it will not be set or trigger this
* behavior on exit. All service and child processes are expected to
* reset this flag to zero to avoid undesireable side effects.
*/
int real_exit_code = 1;
void hold_console_open_on_error(void)
{
HANDLE hConIn;
HANDLE hConErr;
DWORD result;
time_t start;
time_t remains;
char *msg = "Note the errors or messages above, "
"and press the <ESC> key to exit. ";
CONSOLE_SCREEN_BUFFER_INFO coninfo;
INPUT_RECORD in;
char count[16];
if (!real_exit_code)
return;
hConIn = GetStdHandle(STD_INPUT_HANDLE);
hConErr = GetStdHandle(STD_ERROR_HANDLE);
if ((hConIn == INVALID_HANDLE_VALUE) || (hConErr == INVALID_HANDLE_VALUE))
return;
if (!WriteConsole(hConErr, msg, strlen(msg), &result, NULL) || !result)
return;
if (!GetConsoleScreenBufferInfo(hConErr, &coninfo))
return;
if (!SetConsoleMode(hConIn, ENABLE_MOUSE_INPUT | 0x80))
return;
start = time(NULL);
do
{
while (PeekConsoleInput(hConIn, &in, 1, &result) && result)
{
if (!ReadConsoleInput(hConIn, &in, 1, &result) || !result)
return;
if ((in.EventType == KEY_EVENT) && in.Event.KeyEvent.bKeyDown
&& (in.Event.KeyEvent.uChar.AsciiChar == 27))
return;
if (in.EventType == MOUSE_EVENT
&& (in.Event.MouseEvent.dwEventFlags == DOUBLE_CLICK))
return;
}
remains = ((start + 30) - time(NULL));
sprintf (count, "%d...", remains);
if (!SetConsoleCursorPosition(hConErr, coninfo.dwCursorPosition))
return;
if (!WriteConsole(hConErr, count, strlen(count), &result, NULL)
|| !result)
return;
}
while ((remains > 0) && WaitForSingleObject(hConIn, 1000) != WAIT_FAILED);
}
static BOOL die_on_logoff = FALSE;
static LRESULT CALLBACK monitor_service_9x_proc(HWND hWnd, UINT msg,
WPARAM wParam, LPARAM lParam)
{
/* This is the WndProc procedure for our invisible window.
* When the user shuts down the system, this window is sent
* a signal WM_ENDSESSION. We clean up by signaling Apache
* to shut down, and idle until Apache's primary thread quits.
*/
if ((msg == WM_ENDSESSION)
&& (die_on_logoff || (lParam != ENDSESSION_LOGOFF)))
{
ap_signal_parent(SIGNAL_PARENT_SHUTDOWN);
if (wParam)
/* Don't leave this message until we are dead! */
WaitForSingleObject(globdat.mpm_thread, 30000);
return 0;
}
return (DefWindowProc(hWnd, msg, wParam, lParam));
}
static DWORD WINAPI monitor_service_9x_thread(void *service_name)
{
/* When running as a service under Windows 9x, there is no console
* window present, and no ConsoleCtrlHandler to call when the system
* is shutdown. If the WatchWindow thread is created with a NULL
* service_name argument, then the ...SystemMonitor window class is
* used to create the "Apache" window to watch for logoff and shutdown.
* If the service_name is provided, the ...ServiceMonitor window class
* is used to create the window named by the service_name argument,
* and the logoff message is ignored.
*/
WNDCLASS wc;
HWND hwndMain;
MSG msg;
wc.style = CS_GLOBALCLASS;
wc.lpfnWndProc = monitor_service_9x_proc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = NULL;
wc.hIcon = NULL;
wc.hCursor = NULL;
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
if (service_name)
wc.lpszClassName = "ApacheWin95ServiceMonitor";
else
wc.lpszClassName = "ApacheWin95SystemMonitor";
die_on_logoff = service_name ? FALSE : TRUE;
if (!RegisterClass(&wc))
{
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, apr_get_os_error(),
NULL, "Could not register window class for WatchWindow");
globdat.service_thread_id = 0;
return 0;
}
/* Create an invisible window */
hwndMain = CreateWindow(wc.lpszClassName,
service_name ? (char *) service_name : "Apache",
WS_OVERLAPPEDWINDOW & ~WS_VISIBLE,
CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
CW_USEDEFAULT, NULL, NULL, NULL, NULL);
if (!hwndMain)
{
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, apr_get_os_error(),
NULL, "Could not create WatchWindow");
globdat.service_thread_id = 0;
return 0;
}
/* If we succeed, eliminate the console window.
* Signal the parent we are all set up, and
* watch the message queue while the window lives.
*/
FreeConsole();
SetEvent(globdat.service_init);
while (GetMessage(&msg, NULL, 0, 0))
{
if (msg.message == WM_CLOSE)
DestroyWindow(hwndMain);
else {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
globdat.service_thread_id = 0;
return 0;
}
static BOOL CALLBACK console_control_handler(DWORD ctrl_type)
{
switch (ctrl_type)
{
case CTRL_BREAK_EVENT:
fprintf(stderr, "Apache server restarting...\n");
ap_signal_parent(SIGNAL_PARENT_RESTART);
return TRUE;
case CTRL_C_EVENT:
fprintf(stderr, "Apache server interrupted...\n");
/* for Interrupt signals, shut down the server.
* Tell the system we have dealt with the signal
* without waiting for Apache to terminate.
*/
ap_signal_parent(SIGNAL_PARENT_SHUTDOWN);
return TRUE;
case CTRL_CLOSE_EVENT:
case CTRL_LOGOFF_EVENT:
case CTRL_SHUTDOWN_EVENT:
/* for Terminate signals, shut down the server.
* Wait for Apache to terminate, but respond
* after a reasonable time to tell the system
* that we did attempt to shut ourself down.
* THESE EVENTS WILL NOT OCCUR UNDER WIN9x!
*/
fprintf(stderr, "Apache server shutdown initiated...\n");
ap_signal_parent(SIGNAL_PARENT_SHUTDOWN);
Sleep(30000);
return TRUE;
}
/* We should never get here, but this is (mostly) harmless */
return FALSE;
}
static void stop_console_handler(void)
{
SetConsoleCtrlHandler(console_control_handler, FALSE);
}
void mpm_start_console_handler(void)
{
SetConsoleCtrlHandler(console_control_handler, TRUE);
atexit(stop_console_handler);
}
/* Special situation - children of services need to mind their
* P's & Q's and wait quietly, ignoring the mean OS signaling
* shutdown and other horrors, to kill them gracefully...
*/
static BOOL CALLBACK child_control_handler(DWORD ctrl_type)
{
switch (ctrl_type)
{
case CTRL_C_EVENT:
case CTRL_BREAK_EVENT:
/* for Interrupt signals, ignore them.
* The system will also signal the parent process,
* which will terminate Apache.
*/
return TRUE;
case CTRL_CLOSE_EVENT:
case CTRL_LOGOFF_EVENT:
case CTRL_SHUTDOWN_EVENT:
/* for Shutdown signals, ignore them, but... .
* The system will also signal the parent process,
* which will terminate Apache, so we need to wait.
*/
Sleep(30000);
return TRUE;
}
/* We should never get here, but this is (mostly) harmless */
return FALSE;
}
static void stop_child_console_handler(void)
{
SetConsoleCtrlHandler(child_control_handler, FALSE);
}
void mpm_start_child_console_handler(void)
{
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT) {
FreeConsole();
}
else
{
SetConsoleCtrlHandler(child_control_handler, TRUE);
atexit(stop_child_console_handler);
}
}
/**********************************
WinNT service control management
**********************************/
static int ReportStatusToSCMgr(int currentState, int exitCode, int waitHint)
{
static int checkPoint = 1;
int rv = APR_SUCCESS;
if (globdat.hServiceStatus)
{
if (currentState == SERVICE_RUNNING) {
globdat.ssStatus.dwWaitHint = 0;
globdat.ssStatus.dwCheckPoint = 0;
globdat.ssStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP;
}
else if (currentState == SERVICE_STOPPED) {
globdat.ssStatus.dwWaitHint = 0;
globdat.ssStatus.dwCheckPoint = 0;
if (!exitCode && globdat.ssStatus.dwCurrentState
!= SERVICE_STOP_PENDING) {
/* An unexpected exit? Better to error! */
exitCode = 1;
}
if (exitCode) {
globdat.ssStatus.dwWin32ExitCode =ERROR_SERVICE_SPECIFIC_ERROR;
globdat.ssStatus.dwServiceSpecificExitCode = exitCode;
}
}
else {
globdat.ssStatus.dwCheckPoint = ++checkPoint;
globdat.ssStatus.dwControlsAccepted = 0;
if(waitHint)
globdat.ssStatus.dwWaitHint = waitHint;
}
globdat.ssStatus.dwCurrentState = currentState;
rv = SetServiceStatus(globdat.hServiceStatus, &globdat.ssStatus);
}
return(rv);
}
/* Set the service description regardless of platform.
* We revert to set_service_description on NT/9x, the
* very long way so any Apache management program can grab the
* description. This would be bad on Win2000, since it wouldn't
* notify the service control manager of the name change.
*/
/* Windows 2000 alone supports ChangeServiceConfig2 in order to
* register our server_version string... so we need some fixups
* to avoid binding to that function if we are on WinNT/9x.
*/
static void set_service_description(void)
{
const char *full_description;
SC_HANDLE schSCManager;
BOOL ret = 0;
/* Nothing to do if we are a console
*/
if (!mpm_service_name)
return;
/* Time to fix up the description, upon each successful restart
*/
full_description = ap_get_server_version();
if ((osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
&& (osver.dwMajorVersion > 4)
&& (ChangeServiceConfig2)
&& (schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS)))
{
SC_HANDLE schService = OpenService(schSCManager, mpm_service_name,
SERVICE_ALL_ACCESS);
if (schService) {
/* Cast is necessary, ChangeServiceConfig2 handles multiple
* object types, some volatile, some not.
*/
if (ChangeServiceConfig2(schService,
1 /* SERVICE_CONFIG_DESCRIPTION */,
(LPVOID) &full_description)) {
full_description = NULL;
}
CloseServiceHandle(schService);
}
CloseServiceHandle(schSCManager);
}
if (full_description)
{
char szPath[MAX_PATH];
HKEY hkey;
/* Create/Find the Service key that Monitor Applications iterate */
apr_snprintf(szPath, sizeof(szPath),
"SYSTEM\\CurrentControlSet\\Services\\%s",
mpm_service_name);
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, szPath, 0, KEY_SET_VALUE, &hkey)
!= ERROR_SUCCESS) {
return;
}
/* Attempt to set the Description value for our service */
RegSetValueEx(hkey, "Description", 0, REG_SZ,
(unsigned char *) full_description,
strlen(full_description) + 1);
RegCloseKey(hkey);
}
}
/* handle the SCM's ControlService() callbacks to our service */
static VOID WINAPI service_nt_ctrl(DWORD dwCtrlCode)
{
if (dwCtrlCode == SERVICE_CONTROL_STOP)
{
ap_signal_parent(SIGNAL_PARENT_SHUTDOWN);
ReportStatusToSCMgr(SERVICE_STOP_PENDING, NO_ERROR, 30000);
return;
}
if (dwCtrlCode == SERVICE_APACHE_RESTART)
{
ap_signal_parent(SIGNAL_PARENT_RESTART);
ReportStatusToSCMgr(SERVICE_START_PENDING, NO_ERROR, 30000);
return;
}
ReportStatusToSCMgr(globdat.ssStatus.dwCurrentState, NO_ERROR, 0);
}
/* service_nt_main_fn is outside of the call stack and outside of the
* primary server thread... so now we _really_ need a placeholder!
* The winnt_rewrite_args has created and shared mpm_new_argv with us.
*/
extern apr_array_header_t *mpm_new_argv;
static void __stdcall service_nt_main_fn(DWORD argc, LPTSTR *argv)
{
const char *ignored;
/* args and service names live in the same pool */
mpm_service_set_name(mpm_new_argv->pool, &ignored, argv[0]);
memset(&globdat.ssStatus, 0, sizeof(globdat.ssStatus));
globdat.ssStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
globdat.ssStatus.dwCurrentState = SERVICE_START_PENDING;
globdat.ssStatus.dwCheckPoint = 1;
if (!(globdat.hServiceStatus = RegisterServiceCtrlHandler(argv[0], service_nt_ctrl)))
{
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, apr_get_os_error(),
NULL, "Failure registering service handler");
return;
}
/* Report status, no errors, and buy 3 more seconds */
ReportStatusToSCMgr(SERVICE_START_PENDING, NO_ERROR, 30000);
/* We need to append all the command arguments passed via StartService()
* to our running service... which just got here via the SCM...
* but we hvae no interest in argv[0] for the mpm_new_argv list.
*/
if (argc > 1)
{
char **cmb_data;
mpm_new_argv->nalloc = mpm_new_argv->nelts + argc - 1;
cmb_data = malloc(mpm_new_argv->nalloc * sizeof(const char *));
/* mpm_new_argv remains first (of lower significance) */
memcpy (cmb_data, mpm_new_argv->elts,
mpm_new_argv->elt_size * mpm_new_argv->nelts);
/* Service args follow from StartService() invocation */
memcpy (cmb_data + mpm_new_argv->nelts, argv + 1,
mpm_new_argv->elt_size * (argc - 1));
/* The replacement arg list is complete */
mpm_new_argv->elts = (char *)cmb_data;
mpm_new_argv->nelts = mpm_new_argv->nalloc;
}
/* Let the main thread continue now... but hang on to the
* signal_monitor event so we can take further action
*/
SetEvent(globdat.service_init);
WaitForSingleObject(globdat.service_term, INFINITE);
}
DWORD WINAPI service_nt_dispatch_thread(LPVOID nada)
{
apr_status_t rv = APR_SUCCESS;
SERVICE_TABLE_ENTRY dispatchTable[] =
{
{ "", service_nt_main_fn },
{ NULL, NULL }
};
if (!StartServiceCtrlDispatcher(dispatchTable))
{
/* This is a genuine failure of the SCM. */
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"Error starting service control dispatcher");
}
return (rv);
}
apr_status_t mpm_service_set_name(apr_pool_t *p, const char **display_name,
const char *set_name)
{
char key_name[MAX_PATH];
apr_status_t rv;
/* ### Needs improvement, on Win2K the user can _easily_
* change the display name to a string that doesn't reflect
* the internal service name + whitespace!
*/
mpm_service_name = apr_palloc(p, strlen(set_name) + 1);
apr_collapse_spaces((char*) mpm_service_name, set_name);
apr_snprintf(key_name, sizeof(key_name), SERVICECONFIG, mpm_service_name);
rv = ap_registry_get_value(p, key_name, "DisplayName", &mpm_display_name);
if (rv != APR_SUCCESS) {
/* Take the given literal name if there is no service entry */
mpm_display_name = apr_pstrdup(p, set_name);
}
*display_name = mpm_display_name;
return rv;
}
apr_status_t mpm_merge_service_args(apr_pool_t *p,
apr_array_header_t *args,
int fixed_args)
{
apr_array_header_t *svc_args = NULL;
char conf_key[MAX_PATH];
char **cmb_data;
apr_status_t rv;
apr_snprintf(conf_key, sizeof(conf_key), SERVICEPARAMS, mpm_service_name);
rv = ap_registry_get_array(p, conf_key, "ConfigArgs", &svc_args);
if (rv != APR_SUCCESS) {
if (rv == ERROR_FILE_NOT_FOUND) {
ap_log_error(APLOG_MARK, APLOG_INFO|APLOG_NOERRNO, 0, NULL,
"No ConfigArgs registered for %s, perhaps "
"this service is not installed?",
mpm_service_name);
return APR_SUCCESS;
}
else
return (rv);
}
if (!svc_args || svc_args->nelts == 0) {
return (APR_SUCCESS);
}
/* Now we have the mpm_service_name arg, and the mpm_runservice_nt()
* call appended the arguments passed by StartService(), so it's
* time to _prepend_ the default arguments for the server from
* the service's default arguments (all others override them)...
*/
args->nalloc = args->nelts + svc_args->nelts;
cmb_data = malloc(args->nalloc * sizeof(const char *));
/* First three args (argv[0], -f, path) remain first */
memcpy(cmb_data, args->elts, args->elt_size * fixed_args);
/* Service args follow from service registry array */
memcpy(cmb_data + fixed_args, svc_args->elts,
svc_args->elt_size * svc_args->nelts);
/* Remaining new args follow */
memcpy(cmb_data + fixed_args + svc_args->nelts,
(const char **)args->elts + fixed_args,
args->elt_size * (args->nelts - fixed_args));
args->elts = (char *)cmb_data;
args->nelts = args->nalloc;
return APR_SUCCESS;
}
void service_stopped(void)
{
/* Still have a thread & window to clean up, so signal now */
if (globdat.service_thread)
{
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
/* Stop logging to the event log */
mpm_nt_eventlog_stderr_flush();
/* Cause the service_nt_main_fn to complete */
ReleaseMutex(globdat.service_term);
ReportStatusToSCMgr(SERVICE_STOPPED, // service state
NO_ERROR, // exit code
0); // wait hint
}
else /* osver.dwPlatformId != VER_PLATFORM_WIN32_NT */
{
RegisterServiceProcess(0, 0);
PostThreadMessage(globdat.service_thread_id, WM_CLOSE, 0, 0);
}
WaitForSingleObject(globdat.service_thread, 5000);
CloseHandle(globdat.service_thread);
}
}
apr_status_t mpm_service_to_start(const char **display_name, apr_pool_t *p)
{
HANDLE hProc = GetCurrentProcess();
HANDLE hThread = GetCurrentThread();
HANDLE waitfor[2];
/* GetCurrentThread returns a psuedo-handle, we need
* a real handle for another thread to wait upon.
*/
if (!DuplicateHandle(hProc, hThread, hProc, &(globdat.mpm_thread),
0, FALSE, DUPLICATE_SAME_ACCESS)) {
return APR_ENOTHREAD;
}
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
mpm_nt_eventlog_stderr_open(mpm_display_name, p);
globdat.service_init = CreateEvent(NULL, FALSE, FALSE, NULL);
globdat.service_term = CreateMutex(NULL, TRUE, NULL);
if (!globdat.service_init || !globdat.service_term) {
return APR_EGENERAL;
}
globdat.service_thread = CreateThread(NULL, 0, service_nt_dispatch_thread,
NULL, 0, &globdat.service_thread_id);
}
else /* osver.dwPlatformId != VER_PLATFORM_WIN32_NT */
{
if (!RegisterServiceProcess(0, 1))
return GetLastError();
globdat.service_init = CreateEvent(NULL, FALSE, FALSE, NULL);
if (!globdat.service_init) {
return APR_EGENERAL;
}
globdat.service_thread = CreateThread(NULL, 0, monitor_service_9x_thread,
(LPVOID) mpm_service_name, 0,
&globdat.service_thread_id);
}
if (!globdat.service_thread) {
return APR_ENOTHREAD;
}
waitfor[0] = globdat.service_init;
waitfor[1] = globdat.service_thread;
/* Wait for controlling thread init or termination */
if (WaitForMultipleObjects(2, waitfor, FALSE, 10000) != WAIT_OBJECT_0) {
return APR_ENOTHREAD;
}
atexit(service_stopped);
*display_name = mpm_display_name;
return APR_SUCCESS;
}
apr_status_t mpm_service_started(void)
{
set_service_description();
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
ReportStatusToSCMgr(SERVICE_RUNNING, // service state
NO_ERROR, // exit code
0); // wait hint
}
return APR_SUCCESS;
}
void mpm_service_stopping(void)
{
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
ReportStatusToSCMgr(SERVICE_STOP_PENDING, // service state
NO_ERROR, // exit code
30000); // wait hint
}
apr_status_t mpm_service_install(apr_pool_t *ptemp, int argc,
const char * const * argv, int reconfig)
{
char key_name[MAX_PATH];
char exe_path[MAX_PATH];
char *launch_cmd;
apr_status_t(rv);
fprintf(stderr,reconfig ? "Reconfiguring the %s service\n"
: "Installing the %s service\n", mpm_display_name);
if (GetModuleFileName(NULL, exe_path, sizeof(exe_path)) == 0)
{
apr_status_t rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"GetModuleFileName failed");
return rv;
}
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
SC_HANDLE schService;
SC_HANDLE schSCManager;
// TODO: Determine the minimum permissions required for security
schSCManager = OpenSCManager(NULL, NULL, /* local, default database */
SC_MANAGER_ALL_ACCESS);
if (!schSCManager) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"Failed to open the WinNT service manager");
return (rv);
}
launch_cmd = apr_psprintf(ptemp, "\"%s\" -k runservice", exe_path);
if (reconfig) {
schService = OpenService(schSCManager, mpm_service_name,
SERVICE_ALL_ACCESS);
if (!schService) {
ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_ERR,
apr_get_os_error(), NULL,
"OpenService failed");
}
else if (!ChangeServiceConfig(schService,
SERVICE_WIN32_OWN_PROCESS,
SERVICE_AUTO_START,
SERVICE_ERROR_NORMAL,
launch_cmd, NULL, NULL,
"Tcpip\0Afd\0", NULL, NULL,
mpm_display_name)) {
ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_ERR,
apr_get_os_error(), NULL,
"ChangeServiceConfig failed");
/* !schService aborts configuration below */
CloseServiceHandle(schService);
schService = NULL;
}
}
else {
/* RPCSS is the Remote Procedure Call (RPC) Locator required
* for DCOM communication pipes. I am far from convinced we
* should add this to the default service dependencies, but
* be warned that future apache modules or ISAPI dll's may
* depend on it.
*/
schService = CreateService(schSCManager, // SCManager database
mpm_service_name, // name of service
mpm_display_name, // name to display
SERVICE_ALL_ACCESS, // access required
SERVICE_WIN32_OWN_PROCESS, // service type
SERVICE_AUTO_START, // start type
SERVICE_ERROR_NORMAL, // error control type
launch_cmd, // service's binary
NULL, // no load svc group
NULL, // no tag identifier
"Tcpip\0Afd\0", // dependencies
NULL, // use SYSTEM account
NULL); // no password
if (!schService)
{
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"Failed to create WinNT Service Profile");
CloseServiceHandle(schSCManager);
return (rv);
}
}
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
}
else /* osver.dwPlatformId != VER_PLATFORM_WIN32_NT */
{
/* Store the launch command in the registry */
launch_cmd = apr_psprintf(ptemp, "\"%s\" -n %s -k runservice",
exe_path, mpm_service_name);
rv = ap_registry_store_value(SERVICECONFIG9X, mpm_service_name, launch_cmd);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to add the RunServices registry entry.",
mpm_display_name);
return (rv);
}
apr_snprintf(key_name, sizeof(key_name), SERVICECONFIG, mpm_service_name);
rv = ap_registry_store_value(key_name, "ImagePath", launch_cmd);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to store ImagePath in the registry.",
mpm_display_name);
return (rv);
}
rv = ap_registry_store_value(key_name, "DisplayName", mpm_display_name);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to store DisplayName in the registry.",
mpm_display_name);
return (rv);
}
}
set_service_description();
/* For both WinNT & Win9x store the service ConfigArgs in the registry...
*/
apr_snprintf(key_name, sizeof(key_name), SERVICEPARAMS, mpm_service_name);
rv = ap_registry_store_array(ptemp, key_name, "ConfigArgs", argc, argv);
if (rv != APR_SUCCESS) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to store the ConfigArgs in the registry.",
mpm_display_name);
return (rv);
}
fprintf(stderr,"The %s service is successfully installed.\n", mpm_display_name);
return APR_SUCCESS;
}
apr_status_t mpm_service_uninstall(void)
{
char key_name[MAX_PATH];
apr_status_t rv;
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
SC_HANDLE schService;
SC_HANDLE schSCManager;
fprintf(stderr,"Removing the %s service\n", mpm_display_name);
// TODO: Determine the minimum permissions required for security
schSCManager = OpenSCManager(NULL, NULL, /* local, default database */
SC_MANAGER_ALL_ACCESS);
if (!schSCManager) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"Failed to open the WinNT service manager.");
return (rv);
}
schService = OpenService(schSCManager, mpm_service_name, SERVICE_ALL_ACCESS);
if (!schService) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: OpenService failed", mpm_display_name);
return (rv);
}
/* assure the service is stopped before continuing
*
* This may be out of order... we might not be able to be
* granted all access if the service is running anyway.
*
* And do we want to make it *this easy* for them
* to uninstall their service unintentionally?
*/
// ap_stop_service(schService);
if (DeleteService(schService) == 0) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to delete the service.", mpm_display_name);
return (rv);
}
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
}
else /* osver.dwPlatformId != VER_PLATFORM_WIN32_NT */
{
fprintf(stderr,"Removing the %s service\n", mpm_display_name);
/* TODO: assure the service is stopped before continuing */
if (ap_registry_delete_value(SERVICECONFIG9X, mpm_service_name)) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to remove the RunServices registry "
"entry.", mpm_display_name);
return (rv);
}
/* we blast Services/us, not just the Services/us/Parameters branch */
apr_snprintf(key_name, sizeof(key_name), SERVICECONFIG, mpm_service_name);
if (ap_registry_delete_key(key_name))
{
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to remove the service config from the "
"registry.", mpm_display_name);
return (rv);
}
}
fprintf(stderr,"The %s service has been removed successfully.\n", mpm_display_name);
return APR_SUCCESS;
}
/* signal_service_transition is a simple thunk to signal the service
* and monitor its successful transition. If the signal passed is 0,
* then the caller is assumed to already have performed some service
* operation to be monitored (such as StartService), and no actual
* ControlService signal is sent.
*/
static int signal_service_transition(SC_HANDLE schService, DWORD signal, DWORD pending, DWORD complete)
{
if (signal && !ControlService(schService, signal, &globdat.ssStatus))
return FALSE;
do {
Sleep(1000);
if (!QueryServiceStatus(schService, &globdat.ssStatus))
return FALSE;
} while (globdat.ssStatus.dwCurrentState == pending);
return (globdat.ssStatus.dwCurrentState == complete);
}
apr_status_t mpm_service_start(apr_pool_t *ptemp, int argc,
const char * const * argv)
{
apr_status_t rv;
fprintf(stderr,"Starting the %s service\n", mpm_display_name);
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
char **start_argv;
SC_HANDLE schService;
SC_HANDLE schSCManager;
// TODO: Determine the minimum permissions required for security
schSCManager = OpenSCManager(NULL, NULL, /* local, default database */
SC_MANAGER_ALL_ACCESS);
if (!schSCManager) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"Failed to open the WinNT service manager");
return (rv);
}
schService = OpenService(schSCManager, mpm_service_name,
SERVICE_START | SERVICE_QUERY_STATUS);
if (!schService) {
rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"%s: Failed to open the service.", mpm_display_name);
CloseServiceHandle(schSCManager);
return (rv);
}
if (QueryServiceStatus(schService, &globdat.ssStatus)
&& (globdat.ssStatus.dwCurrentState == SERVICE_RUNNING)) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, 0, NULL,
"Service %s is already started!", mpm_display_name);
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return 0;
}
argc += 1;
start_argv = malloc(argc * sizeof(const char **));
start_argv[0] = mpm_service_name;
if (argc > 1)
memcpy(start_argv + 1, argv, (argc - 1) * sizeof(const char **));
rv = APR_EINIT;
if (StartService(schService, argc, start_argv)
&& signal_service_transition(schService, 0, /* test only */
SERVICE_START_PENDING,
SERVICE_RUNNING))
rv = APR_SUCCESS;
if (rv != APR_SUCCESS)
rv = apr_get_os_error();
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
}
else /* osver.dwPlatformId != VER_PLATFORM_WIN32_NT */
{
STARTUPINFO si; /* Filled in prior to call to CreateProcess */
PROCESS_INFORMATION pi; /* filled in on call to CreateProcess */
char exe_path[MAX_PATH];
char exe_cmd[MAX_PATH * 4];
char *next_arg;
int i;
/* Locate the active top level window named service_name
* provided the class is ApacheWin95ServiceMonitor
*/
if (FindWindow("ApacheWin95ServiceMonitor", mpm_service_name)) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, 0, NULL,
"Service %s is already started!", mpm_display_name);
return 0;
}
/* This may not appear intuitive, but Win9x will not allow a process
* to detach from the console without releasing the entire console.
* Ergo, we must spawn a new process for the service to get back our
* console window.
* The config is pre-flighted, so there should be no danger of failure.
*/
if (GetModuleFileName(NULL, exe_path, sizeof(exe_path)) == 0)
{
apr_status_t rv = apr_get_os_error();
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, rv, NULL,
"GetModuleFileName failed");
return rv;
}
apr_snprintf(exe_cmd, sizeof(exe_cmd),
"\"%s\" -n %s -k runservice",
exe_path, mpm_service_name);
next_arg = strchr(exe_cmd, '\0');
for (i = 0; i < argc; ++i) {
apr_snprintf(next_arg, sizeof(exe_cmd) - (next_arg - exe_cmd),
" \"%s\"", argv[i]);
next_arg = strchr(exe_cmd, '\0');
}
memset(&si, 0, sizeof(si));
memset(&pi, 0, sizeof(pi));
si.cb = sizeof(si);
si.dwFlags = STARTF_USESHOWWINDOW;
si.wShowWindow = SW_HIDE; /* This might be redundant */
rv = APR_EINIT;
if (CreateProcess(NULL, exe_cmd, NULL, NULL, FALSE,
DETACHED_PROCESS, /* Creation flags */
NULL, NULL, &si, &pi))
{
DWORD code;
while (GetExitCodeProcess(pi.hProcess, &code) == STILL_ACTIVE) {
if (FindWindow("ApacheWin95ServiceMonitor", mpm_service_name)) {
rv = APR_SUCCESS;
break;
}
Sleep (1000);
}
}
if (rv != APR_SUCCESS)
rv = apr_get_os_error();
CloseHandle(pi.hProcess);
CloseHandle(pi.hThread);
}
if (rv == APR_SUCCESS)
fprintf(stderr,"The %s service is running.\n", mpm_display_name);
else
ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL,
"%s: Failed to start the service process.",
mpm_display_name);
return rv;
}
/* signal is zero to stop, non-zero for restart */
void mpm_signal_service(apr_pool_t *ptemp, int signal)
{
int success = FALSE;
if (osver.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
SC_HANDLE schService;
SC_HANDLE schSCManager;
schSCManager = OpenSCManager(NULL, NULL, // default machine & database
SC_MANAGER_ALL_ACCESS);
if (!schSCManager) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, apr_get_os_error(), NULL,
"Failed to open the NT Service Manager");
return;
}
schService = OpenService(schSCManager, mpm_service_name,
SERVICE_ALL_ACCESS);
if (schService == NULL) {
/* Could not open the service */
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, apr_get_os_error(), NULL,
"Failed to open the %s Service", mpm_display_name);
CloseServiceHandle(schSCManager);
return;
}
if (!QueryServiceStatus(schService, &globdat.ssStatus)) {
ap_log_error(APLOG_MARK, APLOG_ERR | APLOG_STARTUP, apr_get_os_error(), NULL,
"Query of Service %s failed", mpm_display_name);
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return;
}
if (!signal && (globdat.ssStatus.dwCurrentState == SERVICE_STOPPED)) {
fprintf(stderr,"The %s service is not started.\n", mpm_display_name);
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return;
}
fprintf(stderr,"The %s service is %s.\n", mpm_display_name,
signal ? "restarting" : "stopping");
if (!signal)
success = signal_service_transition(schService,
SERVICE_CONTROL_STOP,
SERVICE_STOP_PENDING,
SERVICE_STOPPED);
else if (globdat.ssStatus.dwCurrentState == SERVICE_STOPPED) {
mpm_service_start(ptemp, 0, NULL);
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
return;
}
else
success = signal_service_transition(schService,
SERVICE_APACHE_RESTART,
SERVICE_START_PENDING,
SERVICE_RUNNING);
CloseServiceHandle(schService);
CloseServiceHandle(schSCManager);
}
else /* !isWindowsNT() */
{
DWORD service_pid;
HANDLE hwnd;
char prefix[20];
/* Locate the active top level window named service_name
* provided the class is ApacheWin95ServiceMonitor
*/
hwnd = FindWindow("ApacheWin95ServiceMonitor", mpm_service_name);
if (hwnd && GetWindowThreadProcessId(hwnd, &service_pid))
globdat.ssStatus.dwCurrentState = SERVICE_RUNNING;
else
{
globdat.ssStatus.dwCurrentState = SERVICE_STOPPED;
if (!signal) {
fprintf(stderr,"The %s service is not started.\n", mpm_display_name);
return;
}
}
fprintf(stderr,"The %s service is %s.\n", mpm_display_name,
signal ? "restarting" : "stopping");
apr_snprintf(prefix, sizeof(prefix), "ap%ld", (long)service_pid);
setup_signal_names(prefix);
if (!signal)
{
int ticks = 60;
ap_signal_parent(SIGNAL_PARENT_SHUTDOWN);
while (--ticks)
{
if (!IsWindow(hwnd)) {
success = TRUE;
break;
}
Sleep(1000);
}
}
else /* !stop */
{
/* TODO: Aught to add a little test to the restart logic, and
* store the restart counter in the window's user dword.
* Then we can hang on and report a successful restart. But
* that's a project for another day.
*/
if (globdat.ssStatus.dwCurrentState == SERVICE_STOPPED) {
mpm_service_start(ptemp, 0, NULL);
return;
}
else {
success = TRUE;
ap_signal_parent(SIGNAL_PARENT_RESTART);
}
}
}
if (success)
fprintf(stderr,"The %s service has %s.\n", mpm_display_name,
signal ? "restarted" : "stopped");
else
fprintf(stderr,"Failed to %s the %s service.\n",
signal ? "restart" : "stop", mpm_display_name);
}
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