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wine/programs/services/services.c
Piotr Caban 93736efa80 services: Exit early in process_send_start_message if ConnectNamedPipe fails. 
HasOverlappedIoCompleted returns true after CancelIo call.
2023-07-21 21:27:44 +02:00

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/*
* Services - controls services keeps track of their state
*
* Copyright 2007 Google (Mikolaj Zalewski)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#define WIN32_LEAN_AND_MEAN
#include <stdarg.h>
#include <stdio.h>
#include <assert.h>
#include <windows.h>
#include <winsvc.h>
#include <winternl.h>
#include <rpc.h>
#include <userenv.h>
#include <setupapi.h>
#include "wine/debug.h"
#include "svcctl.h"
#include "services.h"
#define MAX_SERVICE_NAME 260
WINE_DEFAULT_DEBUG_CHANNEL(service);
struct scmdatabase *active_database;
DWORD service_pipe_timeout = 10000;
DWORD service_kill_timeout = 60000;
static DWORD default_preshutdown_timeout = 180000;
static DWORD autostart_delay = 120000;
static void *environment = NULL;
static HKEY service_current_key = NULL;
static HANDLE job_object, job_completion_port;
static const BOOL is_win64 = (sizeof(void *) > sizeof(int));
static const WCHAR SZ_LOCAL_SYSTEM[] = {'L','o','c','a','l','S','y','s','t','e','m',0};
/* Registry constants */
static const WCHAR SZ_SERVICES_KEY[] = { 'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'S','e','r','v','i','c','e','s',0 };
/* Service key values names */
static const WCHAR SZ_DISPLAY_NAME[] = {'D','i','s','p','l','a','y','N','a','m','e',0 };
static const WCHAR SZ_TYPE[] = {'T','y','p','e',0 };
static const WCHAR SZ_START[] = {'S','t','a','r','t',0 };
static const WCHAR SZ_ERROR[] = {'E','r','r','o','r','C','o','n','t','r','o','l',0 };
static const WCHAR SZ_IMAGE_PATH[] = {'I','m','a','g','e','P','a','t','h',0};
static const WCHAR SZ_GROUP[] = {'G','r','o','u','p',0};
static const WCHAR SZ_DEPEND_ON_SERVICE[] = {'D','e','p','e','n','d','O','n','S','e','r','v','i','c','e',0};
static const WCHAR SZ_DEPEND_ON_GROUP[] = {'D','e','p','e','n','d','O','n','G','r','o','u','p',0};
static const WCHAR SZ_OBJECT_NAME[] = {'O','b','j','e','c','t','N','a','m','e',0};
static const WCHAR SZ_TAG[] = {'T','a','g',0};
static const WCHAR SZ_DESCRIPTION[] = {'D','e','s','c','r','i','p','t','i','o','n',0};
static const WCHAR SZ_PRESHUTDOWN[] = {'P','r','e','s','h','u','t','d','o','w','n','T','i','m','e','o','u','t',0};
static const WCHAR SZ_WOW64[] = {'W','O','W','6','4',0};
static const WCHAR SZ_DELAYED_AUTOSTART[] = {'D','e','l','a','y','e','d','A','u','t','o','S','t','a','r','t',0};
static DWORD process_create(const WCHAR *name, struct process_entry **entry)
{
DWORD err;
*entry = calloc(1, sizeof(**entry));
if (!*entry)
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
(*entry)->ref_count = 1;
(*entry)->control_mutex = CreateMutexW(NULL, TRUE, NULL);
if (!(*entry)->control_mutex)
goto error;
(*entry)->overlapped_event = CreateEventW(NULL, TRUE, FALSE, NULL);
if (!(*entry)->overlapped_event)
goto error;
(*entry)->control_pipe = CreateNamedPipeW(name, PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED,
PIPE_TYPE_BYTE|PIPE_WAIT, 1, 256, 256, 10000, NULL);
if ((*entry)->control_pipe == INVALID_HANDLE_VALUE)
goto error;
/* all other fields are zero */
return ERROR_SUCCESS;
error:
err = GetLastError();
if ((*entry)->control_mutex)
CloseHandle((*entry)->control_mutex);
if ((*entry)->overlapped_event)
CloseHandle((*entry)->overlapped_event);
free(*entry);
return err;
}
static void free_process_entry(struct process_entry *entry)
{
CloseHandle(entry->process);
CloseHandle(entry->control_mutex);
CloseHandle(entry->control_pipe);
CloseHandle(entry->overlapped_event);
free(entry);
}
DWORD service_create(LPCWSTR name, struct service_entry **entry)
{
*entry = calloc(1, sizeof(**entry));
if (!*entry)
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
(*entry)->name = wcsdup(name);
list_init(&(*entry)->handles);
if (!(*entry)->name)
{
free(*entry);
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
}
(*entry)->status_changed_event = CreateEventW(NULL, TRUE, FALSE, NULL);
if (!(*entry)->status_changed_event)
{
free((*entry)->name);
free(*entry);
return GetLastError();
}
(*entry)->ref_count = 1;
(*entry)->status.dwCurrentState = SERVICE_STOPPED;
(*entry)->status.dwWin32ExitCode = ERROR_SERVICE_NEVER_STARTED;
(*entry)->preshutdown_timeout = default_preshutdown_timeout;
/* all other fields are zero */
return ERROR_SUCCESS;
}
void free_service_entry(struct service_entry *entry)
{
assert(list_empty(&entry->handles));
CloseHandle(entry->status_changed_event);
free(entry->name);
free(entry->config.lpBinaryPathName);
free(entry->config.lpDependencies);
free(entry->config.lpLoadOrderGroup);
free(entry->config.lpServiceStartName);
free(entry->config.lpDisplayName);
free(entry->description);
free(entry->dependOnServices);
free(entry->dependOnGroups);
if (entry->process) release_process(entry->process);
free(entry);
}
static DWORD load_service_config(HKEY hKey, struct service_entry *entry)
{
DWORD err, value = 0;
WCHAR *wptr;
if ((err = load_reg_string(hKey, SZ_IMAGE_PATH, TRUE, &entry->config.lpBinaryPathName)) != 0)
return err;
if ((err = load_reg_string(hKey, SZ_GROUP, 0, &entry->config.lpLoadOrderGroup)) != 0)
return err;
if ((err = load_reg_string(hKey, SZ_OBJECT_NAME, TRUE, &entry->config.lpServiceStartName)) != 0)
return err;
if ((err = load_reg_string(hKey, SZ_DISPLAY_NAME, 0, &entry->config.lpDisplayName)) != 0)
return err;
if ((err = load_reg_string(hKey, SZ_DESCRIPTION, 0, &entry->description)) != 0)
return err;
if ((err = load_reg_multisz(hKey, SZ_DEPEND_ON_SERVICE, TRUE, &entry->dependOnServices)) != 0)
return err;
if ((err = load_reg_multisz(hKey, SZ_DEPEND_ON_GROUP, FALSE, &entry->dependOnGroups)) != 0)
return err;
if ((err = load_reg_dword(hKey, SZ_TYPE, &entry->config.dwServiceType)) != 0)
return err;
if ((err = load_reg_dword(hKey, SZ_START, &entry->config.dwStartType)) != 0)
return err;
if ((err = load_reg_dword(hKey, SZ_ERROR, &entry->config.dwErrorControl)) != 0)
return err;
if ((err = load_reg_dword(hKey, SZ_TAG, &entry->config.dwTagId)) != 0)
return err;
if ((err = load_reg_dword(hKey, SZ_PRESHUTDOWN, &entry->preshutdown_timeout)) != 0)
return err;
if (load_reg_dword(hKey, SZ_WOW64, &value) == 0 && value == 1)
entry->is_wow64 = TRUE;
if (load_reg_dword(hKey, SZ_DELAYED_AUTOSTART, &value) == 0 && value == 1)
entry->delayed_autostart = TRUE;
WINE_TRACE("Image path = %s\n", wine_dbgstr_w(entry->config.lpBinaryPathName) );
WINE_TRACE("Group = %s\n", wine_dbgstr_w(entry->config.lpLoadOrderGroup) );
WINE_TRACE("Service account name = %s\n", wine_dbgstr_w(entry->config.lpServiceStartName) );
WINE_TRACE("Display name = %s\n", wine_dbgstr_w(entry->config.lpDisplayName) );
WINE_TRACE("Service dependencies : %s\n", entry->dependOnServices[0] ? "" : "(none)");
for (wptr = entry->dependOnServices; *wptr; wptr += lstrlenW(wptr) + 1)
WINE_TRACE(" * %s\n", wine_dbgstr_w(wptr));
WINE_TRACE("Group dependencies : %s\n", entry->dependOnGroups[0] ? "" : "(none)");
for (wptr = entry->dependOnGroups; *wptr; wptr += lstrlenW(wptr) + 1)
WINE_TRACE(" * %s\n", wine_dbgstr_w(wptr));
return ERROR_SUCCESS;
}
static DWORD reg_set_string_value(HKEY hKey, LPCWSTR value_name, LPCWSTR string)
{
if (!string)
{
DWORD err;
err = RegDeleteValueW(hKey, value_name);
if (err != ERROR_FILE_NOT_FOUND)
return err;
return ERROR_SUCCESS;
}
return RegSetValueExW(hKey, value_name, 0, REG_SZ, (const BYTE*)string, sizeof(WCHAR)*(lstrlenW(string) + 1));
}
static DWORD reg_set_multisz_value(HKEY hKey, LPCWSTR value_name, LPCWSTR string)
{
const WCHAR *ptr;
if (!string)
{
DWORD err;
err = RegDeleteValueW(hKey, value_name);
if (err != ERROR_FILE_NOT_FOUND)
return err;
return ERROR_SUCCESS;
}
ptr = string;
while (*ptr) ptr += lstrlenW(ptr) + 1;
return RegSetValueExW(hKey, value_name, 0, REG_MULTI_SZ, (const BYTE*)string, sizeof(WCHAR)*(ptr - string + 1));
}
DWORD save_service_config(struct service_entry *entry)
{
DWORD err;
HKEY hKey = NULL;
err = RegCreateKeyW(entry->db->root_key, entry->name, &hKey);
if (err != ERROR_SUCCESS)
goto cleanup;
if ((err = reg_set_string_value(hKey, SZ_DISPLAY_NAME, entry->config.lpDisplayName)) != 0)
goto cleanup;
if ((err = reg_set_string_value(hKey, SZ_IMAGE_PATH, entry->config.lpBinaryPathName)) != 0)
goto cleanup;
if ((err = reg_set_string_value(hKey, SZ_GROUP, entry->config.lpLoadOrderGroup)) != 0)
goto cleanup;
if ((err = reg_set_string_value(hKey, SZ_OBJECT_NAME, entry->config.lpServiceStartName)) != 0)
goto cleanup;
if ((err = reg_set_string_value(hKey, SZ_DESCRIPTION, entry->description)) != 0)
goto cleanup;
if ((err = reg_set_multisz_value(hKey, SZ_DEPEND_ON_SERVICE, entry->dependOnServices)) != 0)
goto cleanup;
if ((err = reg_set_multisz_value(hKey, SZ_DEPEND_ON_GROUP, entry->dependOnGroups)) != 0)
goto cleanup;
if ((err = RegSetValueExW(hKey, SZ_START, 0, REG_DWORD, (LPBYTE)&entry->config.dwStartType, sizeof(DWORD))) != 0)
goto cleanup;
if ((err = RegSetValueExW(hKey, SZ_ERROR, 0, REG_DWORD, (LPBYTE)&entry->config.dwErrorControl, sizeof(DWORD))) != 0)
goto cleanup;
if ((err = RegSetValueExW(hKey, SZ_TYPE, 0, REG_DWORD, (LPBYTE)&entry->config.dwServiceType, sizeof(DWORD))) != 0)
goto cleanup;
if ((err = RegSetValueExW(hKey, SZ_PRESHUTDOWN, 0, REG_DWORD, (LPBYTE)&entry->preshutdown_timeout, sizeof(DWORD))) != 0)
goto cleanup;
if ((err = RegSetValueExW(hKey, SZ_PRESHUTDOWN, 0, REG_DWORD, (LPBYTE)&entry->preshutdown_timeout, sizeof(DWORD))) != 0)
goto cleanup;
if (entry->is_wow64)
{
const DWORD is_wow64 = 1;
if ((err = RegSetValueExW(hKey, SZ_WOW64, 0, REG_DWORD, (LPBYTE)&is_wow64, sizeof(DWORD))) != 0)
goto cleanup;
}
if (entry->config.dwTagId)
err = RegSetValueExW(hKey, SZ_TAG, 0, REG_DWORD, (LPBYTE)&entry->config.dwTagId, sizeof(DWORD));
else
err = RegDeleteValueW(hKey, SZ_TAG);
if (err != 0 && err != ERROR_FILE_NOT_FOUND)
goto cleanup;
err = ERROR_SUCCESS;
cleanup:
RegCloseKey(hKey);
return err;
}
static void scmdatabase_add_process(struct scmdatabase *db, struct process_entry *process)
{
process->db = db;
list_add_tail(&db->processes, &process->entry);
}
static void scmdatabase_remove_process(struct scmdatabase *db, struct process_entry *process)
{
list_remove(&process->entry);
process->entry.next = process->entry.prev = NULL;
}
DWORD scmdatabase_add_service(struct scmdatabase *db, struct service_entry *service)
{
int err;
service->db = db;
if ((err = save_service_config(service)) != ERROR_SUCCESS)
{
WINE_ERR("Couldn't store service configuration: error %u\n", err);
return ERROR_GEN_FAILURE;
}
list_add_tail(&db->services, &service->entry);
return ERROR_SUCCESS;
}
static void scmdatabase_remove_service(struct scmdatabase *db, struct service_entry *service)
{
RegDeleteTreeW(db->root_key, service->name);
list_remove(&service->entry);
service->entry.next = service->entry.prev = NULL;
}
static int __cdecl compare_tags(const void *a, const void *b)
{
struct service_entry *service_a = *(struct service_entry **)a;
struct service_entry *service_b = *(struct service_entry **)b;
return service_a->config.dwTagId - service_b->config.dwTagId;
}
static PTP_CLEANUP_GROUP delayed_autostart_cleanup;
struct delayed_autostart_params
{
unsigned int count;
struct service_entry **services;
};
static void CALLBACK delayed_autostart_cancel_callback(void *object, void *userdata)
{
struct delayed_autostart_params *params = object;
while(params->count--)
release_service(params->services[params->count]);
free(params->services);
free(params);
}
static void CALLBACK delayed_autostart_callback(TP_CALLBACK_INSTANCE *instance, void *context,
TP_TIMER *timer)
{
struct delayed_autostart_params *params = context;
struct service_entry *service;
unsigned int i;
DWORD err;
scmdatabase_lock_startup(active_database, INFINITE);
for (i = 0; i < params->count; i++)
{
service = params->services[i];
if (service->status.dwCurrentState == SERVICE_STOPPED)
{
TRACE("Starting delayed auto-start service %s\n", debugstr_w(service->name));
err = service_start(service, 0, NULL);
if (err != ERROR_SUCCESS)
FIXME("Delayed auto-start service %s failed to start: %ld\n",
wine_dbgstr_w(service->name), err);
}
release_service(service);
}
scmdatabase_unlock_startup(active_database);
free(params->services);
free(params);
CloseThreadpoolTimer(timer);
}
static BOOL schedule_delayed_autostart(struct service_entry **services, unsigned int count)
{
struct delayed_autostart_params *params;
TP_CALLBACK_ENVIRON environment;
LARGE_INTEGER timestamp;
TP_TIMER *timer;
FILETIME ft;
if (!(delayed_autostart_cleanup = CreateThreadpoolCleanupGroup()))
{
ERR("CreateThreadpoolCleanupGroup failed with error %lu\n", GetLastError());
return FALSE;
}
if (!(params = malloc(sizeof(*params)))) return FALSE;
params->count = count;
params->services = services;
memset(&environment, 0, sizeof(environment));
environment.Version = 1;
environment.CleanupGroup = delayed_autostart_cleanup;
environment.CleanupGroupCancelCallback = delayed_autostart_cancel_callback;
timestamp.QuadPart = (ULONGLONG)autostart_delay * -10000;
ft.dwLowDateTime = timestamp.u.LowPart;
ft.dwHighDateTime = timestamp.u.HighPart;
if (!(timer = CreateThreadpoolTimer(delayed_autostart_callback, params, &environment)))
{
ERR("CreateThreadpoolWait failed: %lu\n", GetLastError());
free(params);
return FALSE;
}
SetThreadpoolTimer(timer, &ft, 0, 0);
return TRUE;
}
static BOOL is_root_pnp_service(HDEVINFO set, const struct service_entry *service)
{
SP_DEVINFO_DATA device = {sizeof(device)};
WCHAR name[MAX_SERVICE_NAME];
unsigned int i;
for (i = 0; SetupDiEnumDeviceInfo(set, i, &device); ++i)
{
if (SetupDiGetDeviceRegistryPropertyW(set, &device, SPDRP_SERVICE, NULL,
(BYTE *)name, sizeof(name), NULL)
&& !wcsicmp(name, service->name))
{
return TRUE;
}
}
return FALSE;
}
static void scmdatabase_autostart_services(struct scmdatabase *db)
{
static const WCHAR rootW[] = {'R','O','O','T',0};
struct service_entry **services_list;
unsigned int i = 0;
unsigned int size = 32;
unsigned int delayed_cnt = 0;
struct service_entry *service;
HDEVINFO set;
services_list = malloc(size * sizeof(services_list[0]));
if (!services_list)
return;
if ((set = SetupDiGetClassDevsW( NULL, rootW, NULL, DIGCF_ALLCLASSES )) == INVALID_HANDLE_VALUE)
WINE_ERR("Failed to enumerate devices, error %#lx.\n", GetLastError());
scmdatabase_lock(db);
LIST_FOR_EACH_ENTRY(service, &db->services, struct service_entry, entry)
{
if (service->config.dwStartType == SERVICE_BOOT_START ||
service->config.dwStartType == SERVICE_SYSTEM_START ||
service->config.dwStartType == SERVICE_AUTO_START ||
(set != INVALID_HANDLE_VALUE && is_root_pnp_service(set, service)))
{
if (i+1 >= size)
{
struct service_entry **slist_new;
size *= 2;
slist_new = realloc(services_list, size * sizeof(services_list[0]));
if (!slist_new)
break;
services_list = slist_new;
}
services_list[i++] = grab_service(service);
}
}
size = i;
scmdatabase_unlock(db);
qsort(services_list, size, sizeof(services_list[0]), compare_tags);
scmdatabase_lock_startup(db, INFINITE);
for (i = 0; i < size; i++)
{
DWORD err;
service = services_list[i];
if (service->delayed_autostart)
{
TRACE("delayed starting %s\n", wine_dbgstr_w(service->name));
services_list[delayed_cnt++] = service;
continue;
}
err = service_start(service, 0, NULL);
if (err != ERROR_SUCCESS)
WINE_FIXME("Auto-start service %s failed to start: %ld\n",
wine_dbgstr_w(service->name), err);
release_service(service);
}
scmdatabase_unlock_startup(db);
if (!delayed_cnt || !schedule_delayed_autostart(services_list, delayed_cnt))
free(services_list);
SetupDiDestroyDeviceInfoList(set);
}
static void scmdatabase_wait_terminate(struct scmdatabase *db)
{
struct list pending = LIST_INIT(pending);
void *ptr;
scmdatabase_lock(db);
list_move_tail(&pending, &db->processes);
while ((ptr = list_head(&pending)))
{
struct process_entry *process = grab_process(LIST_ENTRY(ptr, struct process_entry, entry));
process_terminate(process);
scmdatabase_unlock(db);
WaitForSingleObject(process->process, INFINITE);
scmdatabase_lock(db);
list_remove(&process->entry);
list_add_tail(&db->processes, &process->entry);
release_process(process);
}
scmdatabase_unlock(db);
}
BOOL validate_service_name(LPCWSTR name)
{
return (name && name[0] && !wcschr(name, '/') && !wcschr(name, '\\'));
}
BOOL validate_service_config(struct service_entry *entry)
{
if (entry->config.dwServiceType & SERVICE_WIN32 && (entry->config.lpBinaryPathName == NULL || !entry->config.lpBinaryPathName[0]))
{
WINE_ERR("Service %s is Win32 but has no image path set\n", wine_dbgstr_w(entry->name));
return FALSE;
}
switch (entry->config.dwServiceType)
{
case SERVICE_KERNEL_DRIVER:
case SERVICE_FILE_SYSTEM_DRIVER:
case SERVICE_WIN32_OWN_PROCESS:
case SERVICE_WIN32_SHARE_PROCESS:
/* No problem */
break;
case SERVICE_WIN32_OWN_PROCESS | SERVICE_INTERACTIVE_PROCESS:
case SERVICE_WIN32_SHARE_PROCESS | SERVICE_INTERACTIVE_PROCESS:
/* These can be only run as LocalSystem */
if (entry->config.lpServiceStartName && wcsicmp(entry->config.lpServiceStartName, SZ_LOCAL_SYSTEM) != 0)
{
WINE_ERR("Service %s is interactive but has a start name\n", wine_dbgstr_w(entry->name));
return FALSE;
}
break;
default:
WINE_ERR("Service %s has an unknown service type (0x%lx)\n", wine_dbgstr_w(entry->name), entry->config.dwServiceType);
return FALSE;
}
/* StartType can only be a single value (if several values are mixed the result is probably not what was intended) */
if (entry->config.dwStartType > SERVICE_DISABLED)
{
WINE_ERR("Service %s has an unknown start type\n", wine_dbgstr_w(entry->name));
return FALSE;
}
/* SERVICE_BOOT_START and SERVICE_SYSTEM_START are only allowed for driver services */
if (((entry->config.dwStartType == SERVICE_BOOT_START) || (entry->config.dwStartType == SERVICE_SYSTEM_START)) &&
((entry->config.dwServiceType & SERVICE_WIN32_OWN_PROCESS) || (entry->config.dwServiceType & SERVICE_WIN32_SHARE_PROCESS)))
{
WINE_ERR("Service %s - SERVICE_BOOT_START and SERVICE_SYSTEM_START are only allowed for driver services\n", wine_dbgstr_w(entry->name));
return FALSE;
}
if (entry->config.lpServiceStartName == NULL)
entry->config.lpServiceStartName = wcsdup(SZ_LOCAL_SYSTEM);
return TRUE;
}
struct service_entry *scmdatabase_find_service(struct scmdatabase *db, LPCWSTR name)
{
struct service_entry *service;
LIST_FOR_EACH_ENTRY(service, &db->services, struct service_entry, entry)
{
if (wcsicmp(name, service->name) == 0)
return service;
}
return NULL;
}
struct service_entry *scmdatabase_find_service_by_displayname(struct scmdatabase *db, LPCWSTR name)
{
struct service_entry *service;
LIST_FOR_EACH_ENTRY(service, &db->services, struct service_entry, entry)
{
if (service->config.lpDisplayName && wcsicmp(name, service->config.lpDisplayName) == 0)
return service;
}
return NULL;
}
struct process_entry *grab_process(struct process_entry *process)
{
if (process)
InterlockedIncrement(&process->ref_count);
return process;
}
void release_process(struct process_entry *process)
{
struct scmdatabase *db = process->db;
scmdatabase_lock(db);
if (InterlockedDecrement(&process->ref_count) == 0)
{
scmdatabase_remove_process(db, process);
free_process_entry(process);
}
scmdatabase_unlock(db);
}
struct service_entry *grab_service(struct service_entry *service)
{
if (service)
InterlockedIncrement(&service->ref_count);
return service;
}
void release_service(struct service_entry *service)
{
struct scmdatabase *db = service->db;
scmdatabase_lock(db);
if (InterlockedDecrement(&service->ref_count) == 0 && is_marked_for_delete(service))
{
scmdatabase_remove_service(db, service);
free_service_entry(service);
}
scmdatabase_unlock(db);
}
static DWORD scmdatabase_create(struct scmdatabase **db)
{
DWORD err;
*db = malloc(sizeof(**db));
if (!*db)
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
(*db)->service_start_lock = FALSE;
list_init(&(*db)->processes);
list_init(&(*db)->services);
InitializeCriticalSection(&(*db)->cs);
(*db)->cs.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": scmdatabase");
err = RegCreateKeyExW(HKEY_LOCAL_MACHINE, SZ_SERVICES_KEY, 0, NULL,
REG_OPTION_NON_VOLATILE, MAXIMUM_ALLOWED, NULL,
&(*db)->root_key, NULL);
if (err != ERROR_SUCCESS)
free(*db);
return err;
}
static void scmdatabase_destroy(struct scmdatabase *db)
{
RegCloseKey(db->root_key);
db->cs.DebugInfo->Spare[0] = 0;
DeleteCriticalSection(&db->cs);
free(db);
}
static DWORD scmdatabase_load_services(struct scmdatabase *db)
{
DWORD err;
int i;
for (i = 0; TRUE; i++)
{
WCHAR szName[MAX_SERVICE_NAME];
struct service_entry *entry;
HKEY hServiceKey;
err = RegEnumKeyW(db->root_key, i, szName, MAX_SERVICE_NAME);
if (err == ERROR_NO_MORE_ITEMS)
break;
if (err != 0)
{
WINE_ERR("Error %ld reading key %d name - skipping\n", err, i);
continue;
}
err = service_create(szName, &entry);
if (err != ERROR_SUCCESS)
break;
WINE_TRACE("Loading service %s\n", wine_dbgstr_w(szName));
err = RegOpenKeyExW(db->root_key, szName, 0, KEY_READ, &hServiceKey);
if (err == ERROR_SUCCESS)
{
err = load_service_config(hServiceKey, entry);
RegCloseKey(hServiceKey);
}
if (err != ERROR_SUCCESS)
{
WINE_ERR("Error %ld reading registry key for service %s - skipping\n", err, wine_dbgstr_w(szName));
free_service_entry(entry);
continue;
}
if (entry->config.dwServiceType == 0)
{
/* Maybe an application only wrote some configuration in the service key. Continue silently */
WINE_TRACE("Even the service type not set for service %s - skipping\n", wine_dbgstr_w(szName));
free_service_entry(entry);
continue;
}
if (!validate_service_config(entry))
{
WINE_ERR("Invalid configuration of service %s - skipping\n", wine_dbgstr_w(szName));
free_service_entry(entry);
continue;
}
entry->status.dwServiceType = entry->config.dwServiceType;
entry->db = db;
list_add_tail(&db->services, &entry->entry);
release_service(entry);
}
return ERROR_SUCCESS;
}
BOOL scmdatabase_lock_startup(struct scmdatabase *db, int timeout)
{
while (InterlockedCompareExchange(&db->service_start_lock, TRUE, FALSE))
{
if (timeout != INFINITE)
{
timeout -= 10;
if (timeout <= 0) return FALSE;
}
Sleep(10);
}
return TRUE;
}
void scmdatabase_unlock_startup(struct scmdatabase *db)
{
InterlockedCompareExchange(&db->service_start_lock, FALSE, TRUE);
}
void scmdatabase_lock(struct scmdatabase *db)
{
EnterCriticalSection(&db->cs);
}
void scmdatabase_unlock(struct scmdatabase *db)
{
LeaveCriticalSection(&db->cs);
}
void service_lock(struct service_entry *service)
{
EnterCriticalSection(&service->db->cs);
}
void service_unlock(struct service_entry *service)
{
LeaveCriticalSection(&service->db->cs);
}
/* only one service started at a time, so there is no race on the registry
* value here */
static LPWSTR service_get_pipe_name(void)
{
static const WCHAR format[] = { '\\','\\','.','\\','p','i','p','e','\\',
'n','e','t','\\','N','t','C','o','n','t','r','o','l','P','i','p','e','%','u',0};
static WCHAR name[ARRAY_SIZE(format) + 10]; /* lstrlenW("4294967295") */
static DWORD service_current = 0;
DWORD len, value = -1;
LONG ret;
DWORD type;
len = sizeof(value);
ret = RegQueryValueExW(service_current_key, NULL, NULL, &type,
(BYTE *)&value, &len);
if (ret == ERROR_SUCCESS && type == REG_DWORD)
service_current = max(service_current, value + 1);
RegSetValueExW(service_current_key, NULL, 0, REG_DWORD,
(BYTE *)&service_current, sizeof(service_current));
swprintf(name, ARRAY_SIZE(name), format, service_current);
service_current++;
return name;
}
static DWORD get_service_binary_path(const struct service_entry *service_entry, WCHAR **path)
{
DWORD size = ExpandEnvironmentStringsW(service_entry->config.lpBinaryPathName, NULL, 0);
*path = malloc(size * sizeof(WCHAR));
if (!*path)
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
ExpandEnvironmentStringsW(service_entry->config.lpBinaryPathName, *path, size);
/* if service image is configured to systemdir, redirect it to wow64 systemdir */
if (service_entry->is_wow64 && !(service_entry->config.dwServiceType & (SERVICE_FILE_SYSTEM_DRIVER | SERVICE_KERNEL_DRIVER)))
{
WCHAR system_dir[MAX_PATH], *redirected;
DWORD len;
GetSystemDirectoryW( system_dir, MAX_PATH );
len = lstrlenW( system_dir );
if (wcsnicmp( system_dir, *path, len ))
return ERROR_SUCCESS;
GetSystemWow64DirectoryW( system_dir, MAX_PATH );
redirected = malloc( (wcslen( *path ) + wcslen( system_dir )) * sizeof(WCHAR) );
if (!redirected)
{
free( *path );
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
}
lstrcpyW( redirected, system_dir );
lstrcatW( redirected, &(*path)[len] );
free( *path );
*path = redirected;
TRACE("redirected to %s\n", debugstr_w(redirected));
}
return ERROR_SUCCESS;
}
static DWORD get_winedevice_binary_path(struct service_entry *service_entry, WCHAR **path, BOOL *is_wow64)
{
static const WCHAR winedeviceW[] = {'\\','w','i','n','e','d','e','v','i','c','e','.','e','x','e',0};
WCHAR system_dir[MAX_PATH];
DWORD type;
if (!is_win64)
*is_wow64 = FALSE;
else if (GetBinaryTypeW(*path, &type))
*is_wow64 = (type == SCS_32BIT_BINARY);
else
*is_wow64 = service_entry->is_wow64;
GetSystemDirectoryW(system_dir, MAX_PATH);
free(*path);
if (!(*path = malloc(wcslen(system_dir) * sizeof(WCHAR) + sizeof(winedeviceW))))
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
lstrcpyW(*path, system_dir);
lstrcatW(*path, winedeviceW);
return ERROR_SUCCESS;
}
static struct process_entry *get_winedevice_process(struct service_entry *service_entry, WCHAR *path, BOOL is_wow64)
{
struct service_entry *winedevice_entry;
if (!service_entry->config.lpLoadOrderGroup)
return NULL;
LIST_FOR_EACH_ENTRY(winedevice_entry, &service_entry->db->services, struct service_entry, entry)
{
if (winedevice_entry->status.dwCurrentState != SERVICE_START_PENDING &&
winedevice_entry->status.dwCurrentState != SERVICE_RUNNING) continue;
if (!winedevice_entry->process) continue;
if (winedevice_entry->is_wow64 != is_wow64) continue;
if (!winedevice_entry->config.lpBinaryPathName) continue;
if (lstrcmpW(winedevice_entry->config.lpBinaryPathName, path)) continue;
if (!winedevice_entry->config.lpLoadOrderGroup) continue;
if (lstrcmpW(winedevice_entry->config.lpLoadOrderGroup, service_entry->config.lpLoadOrderGroup)) continue;
return grab_process(winedevice_entry->process);
}
return NULL;
}
static DWORD add_winedevice_service(const struct service_entry *service, WCHAR *path, BOOL is_wow64,
struct service_entry **entry)
{
static const WCHAR format[] = {'W','i','n','e','d','e','v','i','c','e','%','u',0};
static WCHAR name[ARRAY_SIZE(format) + 10]; /* lstrlenW("4294967295") */
static DWORD current = 0;
struct scmdatabase *db = service->db;
DWORD err;
for (;;)
{
swprintf(name, ARRAY_SIZE(name), format, ++current);
if (!scmdatabase_find_service(db, name)) break;
}
err = service_create(name, entry);
if (err != ERROR_SUCCESS)
return err;
(*entry)->is_wow64 = is_wow64;
(*entry)->config.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
(*entry)->config.dwStartType = SERVICE_DEMAND_START;
(*entry)->status.dwServiceType = (*entry)->config.dwServiceType;
if (!((*entry)->config.lpBinaryPathName = wcsdup(path)))
goto error;
if (!((*entry)->config.lpServiceStartName = wcsdup(SZ_LOCAL_SYSTEM)))
goto error;
if (!((*entry)->config.lpDisplayName = wcsdup(name)))
goto error;
if (service->config.lpLoadOrderGroup &&
!((*entry)->config.lpLoadOrderGroup = wcsdup(service->config.lpLoadOrderGroup)))
goto error;
(*entry)->db = db;
list_add_tail(&db->services, &(*entry)->entry);
mark_for_delete(*entry);
return ERROR_SUCCESS;
error:
free_service_entry(*entry);
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
}
static DWORD service_start_process(struct service_entry *service_entry, struct process_entry **new_process,
BOOL *shared_process)
{
struct process_entry *process;
PROCESS_INFORMATION pi;
STARTUPINFOW si;
BOOL is_wow64 = FALSE;
HANDLE token;
WCHAR *path;
DWORD err;
BOOL r;
service_lock(service_entry);
if ((process = service_entry->process))
{
if (WaitForSingleObject(process->process, 0) == WAIT_TIMEOUT)
{
service_unlock(service_entry);
return ERROR_SERVICE_ALREADY_RUNNING;
}
service_entry->process = NULL;
process->use_count--;
release_process(process);
}
service_entry->force_shutdown = FALSE;
if ((err = get_service_binary_path(service_entry, &path)))
{
service_unlock(service_entry);
return err;
}
if (service_entry->config.dwServiceType == SERVICE_KERNEL_DRIVER ||
service_entry->config.dwServiceType == SERVICE_FILE_SYSTEM_DRIVER)
{
struct service_entry *winedevice_entry;
WCHAR *group;
if ((err = get_winedevice_binary_path(service_entry, &path, &is_wow64)))
{
service_unlock(service_entry);
free(path);
return err;
}
if ((process = get_winedevice_process(service_entry, path, is_wow64)))
{
free(path);
goto found;
}
err = add_winedevice_service(service_entry, path, is_wow64, &winedevice_entry);
free(path);
if (err != ERROR_SUCCESS)
{
service_unlock(service_entry);
return err;
}
group = wcsdup(winedevice_entry->config.lpLoadOrderGroup);
service_unlock(service_entry);
err = service_start(winedevice_entry, group != NULL, (const WCHAR **)&group);
free(group);
if (err != ERROR_SUCCESS)
{
release_service(winedevice_entry);
return err;
}
service_lock(service_entry);
process = grab_process(winedevice_entry->process);
release_service(winedevice_entry);
if (!process)
{
service_unlock(service_entry);
return ERROR_SERVICE_REQUEST_TIMEOUT;
}
found:
service_entry->status.dwCurrentState = SERVICE_START_PENDING;
service_entry->status.dwControlsAccepted = 0;
ResetEvent(service_entry->status_changed_event);
service_entry->process = grab_process(process);
service_entry->shared_process = *shared_process = TRUE;
process->use_count++;
service_unlock(service_entry);
err = WaitForSingleObject(process->control_mutex, 30000);
if (err != WAIT_OBJECT_0)
{
release_process(process);
return ERROR_SERVICE_REQUEST_TIMEOUT;
}
*new_process = process;
return ERROR_SUCCESS;
}
if ((err = process_create(service_get_pipe_name(), &process)))
{
WINE_ERR("failed to create process object for %s, error = %lu\n",
wine_dbgstr_w(service_entry->name), err);
service_unlock(service_entry);
free(path);
return err;
}
ZeroMemory(&si, sizeof(STARTUPINFOW));
si.cb = sizeof(STARTUPINFOW);
if (!(service_entry->config.dwServiceType & SERVICE_INTERACTIVE_PROCESS))
{
static WCHAR desktopW[] = {'_','_','w','i','n','e','s','e','r','v','i','c','e','_','w','i','n','s','t','a','t','i','o','n','\\','D','e','f','a','u','l','t',0};
si.lpDesktop = desktopW;
}
if (!environment && OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY | TOKEN_DUPLICATE, &token))
{
WCHAR val[16];
CreateEnvironmentBlock(&environment, token, FALSE);
if (GetEnvironmentVariableW( L"WINEBOOTSTRAPMODE", val, ARRAY_SIZE(val) ))
{
UNICODE_STRING name = RTL_CONSTANT_STRING(L"WINEBOOTSTRAPMODE");
UNICODE_STRING value;
RtlInitUnicodeString( &value, val );
RtlSetEnvironmentVariable( (WCHAR **)&environment, &name, &value );
}
CloseHandle(token);
}
service_entry->status.dwCurrentState = SERVICE_START_PENDING;
service_entry->status.dwControlsAccepted = 0;
ResetEvent(service_entry->status_changed_event);
scmdatabase_add_process(service_entry->db, process);
service_entry->process = grab_process(process);
service_entry->shared_process = *shared_process = FALSE;
process->use_count++;
service_unlock(service_entry);
r = CreateProcessW(NULL, path, NULL, NULL, FALSE, CREATE_UNICODE_ENVIRONMENT | DETACHED_PROCESS, environment, NULL, &si, &pi);
free(path);
if (!r)
{
err = GetLastError();
process_terminate(process);
release_process(process);
return err;
}
if (!AssignProcessToJobObject(job_object, pi.hProcess))
WINE_ERR("Could not add object to job.\n");
process->process_id = pi.dwProcessId;
process->process = pi.hProcess;
CloseHandle( pi.hThread );
*new_process = process;
return ERROR_SUCCESS;
}
static DWORD service_wait_for_startup(struct service_entry *service, struct process_entry *process)
{
HANDLE handles[2] = { service->status_changed_event, process->process };
DWORD result;
result = WaitForMultipleObjects( 2, handles, FALSE, service_pipe_timeout );
if (result != WAIT_OBJECT_0)
return ERROR_SERVICE_REQUEST_TIMEOUT;
service_lock(service);
result = service->status.dwCurrentState;
service_unlock(service);
return (result == SERVICE_START_PENDING || result == SERVICE_RUNNING) ?
ERROR_SUCCESS : ERROR_SERVICE_REQUEST_TIMEOUT;
}
/******************************************************************************
* process_send_start_message
*/
static DWORD process_send_start_message(struct process_entry *process, BOOL shared_process,
const WCHAR *name, const WCHAR **argv, DWORD argc)
{
OVERLAPPED overlapped;
DWORD i, len, result;
WCHAR *str, *p;
WINE_TRACE("%p %s %p %ld\n", process, wine_dbgstr_w(name), argv, argc);
overlapped.hEvent = process->overlapped_event;
if (!ConnectNamedPipe(process->control_pipe, &overlapped))
{
if (GetLastError() == ERROR_IO_PENDING)
{
HANDLE handles[2];
handles[0] = process->overlapped_event;
handles[1] = process->process;
if (WaitForMultipleObjects( 2, handles, FALSE, service_pipe_timeout ) != WAIT_OBJECT_0)
CancelIo(process->control_pipe);
if (!GetOverlappedResult(process->control_pipe, &overlapped, &len, FALSE))
{
WINE_ERR("service %s failed to start\n", wine_dbgstr_w(name));
return ERROR_SERVICE_REQUEST_TIMEOUT;
}
}
else if (GetLastError() != ERROR_PIPE_CONNECTED)
{
WINE_ERR("pipe connect failed\n");
return ERROR_SERVICE_REQUEST_TIMEOUT;
}
}
len = lstrlenW(name) + 1;
for (i = 0; i < argc; i++)
len += lstrlenW(argv[i])+1;
len = (len + 1) * sizeof(WCHAR);
if (!(str = malloc(len)))
return ERROR_NOT_ENOUGH_SERVER_MEMORY;
p = str;
lstrcpyW(p, name);
p += lstrlenW(name) + 1;
for (i = 0; i < argc; i++)
{
lstrcpyW(p, argv[i]);
p += lstrlenW(p) + 1;
}
*p = 0;
if (!process_send_control(process, shared_process, name,
SERVICE_CONTROL_START, (const BYTE *)str, len, &result))
result = ERROR_SERVICE_REQUEST_TIMEOUT;
free(str);
return result;
}
DWORD service_start(struct service_entry *service, DWORD service_argc, LPCWSTR *service_argv)
{
struct process_entry *process = NULL;
BOOL shared_process;
DWORD err;
err = service_start_process(service, &process, &shared_process);
if (err == ERROR_SUCCESS)
{
err = process_send_start_message(process, shared_process, service->name, service_argv, service_argc);
if (err == ERROR_SUCCESS)
err = service_wait_for_startup(service, process);
if (err != ERROR_SUCCESS)
{
service_lock(service);
if (service->process)
{
service->status.dwCurrentState = SERVICE_STOPPED;
service->process = NULL;
if (!--process->use_count) process_terminate(process);
release_process(process);
}
service_unlock(service);
}
ReleaseMutex(process->control_mutex);
release_process(process);
}
WINE_TRACE("returning %ld\n", err);
return err;
}
void process_terminate(struct process_entry *process)
{
struct scmdatabase *db = process->db;
struct service_entry *service;
scmdatabase_lock(db);
TerminateProcess(process->process, 0);
LIST_FOR_EACH_ENTRY(service, &db->services, struct service_entry, entry)
{
if (service->process != process) continue;
service->status.dwCurrentState = SERVICE_STOPPED;
service->process = NULL;
process->use_count--;
release_process(process);
}
scmdatabase_unlock(db);
}
static void load_registry_parameters(void)
{
static const WCHAR controlW[] =
{ 'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l',0 };
static const WCHAR pipetimeoutW[] =
{'S','e','r','v','i','c','e','s','P','i','p','e','T','i','m','e','o','u','t',0};
static const WCHAR killtimeoutW[] =
{'W','a','i','t','T','o','K','i','l','l','S','e','r','v','i','c','e','T','i','m','e','o','u','t',0};
static const WCHAR autostartdelayW[] =
{'A','u','t','o','S','t','a','r','t','D','e','l','a','y',0};
HKEY key;
WCHAR buffer[64];
DWORD type, count, val;
if (RegOpenKeyW( HKEY_LOCAL_MACHINE, controlW, &key )) return;
count = sizeof(buffer);
if (!RegQueryValueExW( key, pipetimeoutW, NULL, &type, (BYTE *)buffer, &count ) &&
type == REG_SZ && (val = wcstol( buffer, NULL, 10 )))
service_pipe_timeout = val;
count = sizeof(buffer);
if (!RegQueryValueExW( key, killtimeoutW, NULL, &type, (BYTE *)buffer, &count ) &&
type == REG_SZ && (val = wcstol( buffer, NULL, 10 )))
service_kill_timeout = val;
count = sizeof(val);
if (!RegQueryValueExW( key, autostartdelayW, NULL, &type, (BYTE *)&val, &count ) && type == REG_DWORD)
autostart_delay = val;
RegCloseKey( key );
}
static DWORD WINAPI process_monitor_thread_proc( void *arg )
{
struct scmdatabase *db = active_database;
struct service_entry *service;
struct process_entry *process;
OVERLAPPED *overlapped;
ULONG_PTR value;
DWORD key, pid;
while (GetQueuedCompletionStatus(job_completion_port, &key, &value, &overlapped, INFINITE))
{
if (!key)
break;
if (key != JOB_OBJECT_MSG_EXIT_PROCESS)
continue;
pid = (ULONG_PTR)overlapped;
WINE_TRACE("pid %04lx exited.\n", pid);
scmdatabase_lock(db);
LIST_FOR_EACH_ENTRY(service, &db->services, struct service_entry, entry)
{
if (service->status.dwCurrentState != SERVICE_RUNNING || !service->process
|| service->process->process_id != pid) continue;
WINE_TRACE("Stopping service %s.\n", debugstr_w(service->config.lpBinaryPathName));
service->status.dwCurrentState = SERVICE_STOPPED;
service->status.dwControlsAccepted = 0;
service->status.dwWin32ExitCode = ERROR_PROCESS_ABORTED;
service->status.dwServiceSpecificExitCode = 0;
service->status.dwCheckPoint = 0;
service->status.dwWaitHint = 0;
SetEvent(service->status_changed_event);
process = service->process;
service->process = NULL;
process->use_count--;
release_process(process);
notify_service_state(service);
}
scmdatabase_unlock(db);
}
WINE_TRACE("Terminating.\n");
return 0;
}
int __cdecl main(int argc, char *argv[])
{
static const WCHAR service_current_key_str[] = { 'S','Y','S','T','E','M','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'S','e','r','v','i','c','e','C','u','r','r','e','n','t',0};
static const WCHAR svcctl_started_event[] = SVCCTL_STARTED_EVENT;
JOBOBJECT_EXTENDED_LIMIT_INFORMATION job_limit;
JOBOBJECT_ASSOCIATE_COMPLETION_PORT port_info;
HANDLE started_event, process_monitor_thread;
DWORD err;
job_object = CreateJobObjectW(NULL, NULL);
job_limit.BasicLimitInformation.LimitFlags = JOB_OBJECT_LIMIT_BREAKAWAY_OK | JOB_OBJECT_LIMIT_SILENT_BREAKAWAY_OK;
if (!SetInformationJobObject(job_object, JobObjectExtendedLimitInformation, &job_limit, sizeof(job_limit)))
{
WINE_ERR("Failed to initialized job object, err %lu.\n", GetLastError());
return GetLastError();
}
job_completion_port = CreateIoCompletionPort(INVALID_HANDLE_VALUE, NULL, 0, 1);
port_info.CompletionPort = job_completion_port;
port_info.CompletionKey = job_object;
if (!SetInformationJobObject(job_object, JobObjectAssociateCompletionPortInformation,
&port_info, sizeof(port_info)))
{
WINE_ERR("Failed to set completion port for job, err %lu.\n", GetLastError());
return GetLastError();
}
started_event = CreateEventW(NULL, TRUE, FALSE, svcctl_started_event);
err = RegCreateKeyExW(HKEY_LOCAL_MACHINE, service_current_key_str, 0,
NULL, REG_OPTION_VOLATILE, KEY_SET_VALUE | KEY_QUERY_VALUE, NULL,
&service_current_key, NULL);
if (err != ERROR_SUCCESS)
return err;
load_registry_parameters();
err = scmdatabase_create(&active_database);
if (err != ERROR_SUCCESS)
return err;
if ((err = scmdatabase_load_services(active_database)) != ERROR_SUCCESS)
return err;
if ((err = RPC_Init()) == ERROR_SUCCESS)
{
scmdatabase_autostart_services(active_database);
process_monitor_thread = CreateThread(NULL, 0, process_monitor_thread_proc, NULL, 0, NULL);
SetEvent(started_event);
WaitForSingleObject(exit_event, INFINITE);
PostQueuedCompletionStatus(job_completion_port, 0, 0, NULL);
WaitForSingleObject(process_monitor_thread, INFINITE);
scmdatabase_wait_terminate(active_database);
if (delayed_autostart_cleanup)
{
CloseThreadpoolCleanupGroupMembers(delayed_autostart_cleanup, TRUE, NULL);
CloseThreadpoolCleanupGroup(delayed_autostart_cleanup);
}
RPC_Stop();
}
scmdatabase_destroy(active_database);
if (environment)
DestroyEnvironmentBlock(environment);
WINE_TRACE("services.exe exited with code %ld\n", err);
return err;
}
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