/* * 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 #include #include #include #include #include #include #include #include "wine/debug.h" #include "wine/heap.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 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 = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, 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); HeapFree(GetProcessHeap(), 0, *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); HeapFree(GetProcessHeap(), 0, entry); } DWORD service_create(LPCWSTR name, struct service_entry **entry) { *entry = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(**entry)); if (!*entry) return ERROR_NOT_ENOUGH_SERVER_MEMORY; (*entry)->name = strdupW(name); list_init(&(*entry)->handles); if (!(*entry)->name) { HeapFree(GetProcessHeap(), 0, *entry); return ERROR_NOT_ENOUGH_SERVER_MEMORY; } (*entry)->status_changed_event = CreateEventW(NULL, TRUE, FALSE, NULL); if (!(*entry)->status_changed_event) { HeapFree(GetProcessHeap(), 0, (*entry)->name); HeapFree(GetProcessHeap(), 0, *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); HeapFree(GetProcessHeap(), 0, entry->name); HeapFree(GetProcessHeap(), 0, entry->config.lpBinaryPathName); HeapFree(GetProcessHeap(), 0, entry->config.lpDependencies); HeapFree(GetProcessHeap(), 0, entry->config.lpLoadOrderGroup); HeapFree(GetProcessHeap(), 0, entry->config.lpServiceStartName); HeapFree(GetProcessHeap(), 0, entry->config.lpDisplayName); HeapFree(GetProcessHeap(), 0, entry->description); HeapFree(GetProcessHeap(), 0, entry->dependOnServices); HeapFree(GetProcessHeap(), 0, entry->dependOnGroups); if (entry->process) release_process(entry->process); HeapFree(GetProcessHeap(), 0, 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]); heap_free(params->services); heap_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: %d\n", wine_dbgstr_w(service->name), err); } release_service(service); } scmdatabase_unlock_startup(active_database); heap_free(params->services); heap_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 %u\n", GetLastError()); return FALSE; } if (!(params = heap_alloc(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: %u\n", GetLastError()); heap_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 = HeapAlloc(GetProcessHeap(), 0, 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 %#x.\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 = HeapReAlloc(GetProcessHeap(), 0, 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: %d\n", wine_dbgstr_w(service->name), err); release_service(service); } scmdatabase_unlock_startup(db); if (!delayed_cnt || !schedule_delayed_autostart(services_list, delayed_cnt)) heap_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)); 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%x)\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 = strdupW(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 = HeapAlloc(GetProcessHeap(), 0, 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) HeapFree(GetProcessHeap(), 0, *db); return err; } static void scmdatabase_destroy(struct scmdatabase *db) { RegCloseKey(db->root_key); db->cs.DebugInfo->Spare[0] = 0; DeleteCriticalSection(&db->cs); HeapFree(GetProcessHeap(), 0, 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 %d 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 %d 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 = HeapAlloc(GetProcessHeap(), 0, 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 = HeapAlloc( GetProcessHeap(), 0, (lstrlenW( *path ) + lstrlenW( system_dir ))*sizeof(WCHAR)); if (!redirected) { HeapFree( GetProcessHeap(), 0, *path ); return ERROR_NOT_ENOUGH_SERVER_MEMORY; } lstrcpyW( redirected, system_dir ); lstrcatW( redirected, &(*path)[len] ); HeapFree( GetProcessHeap(), 0, *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); HeapFree(GetProcessHeap(), 0, *path); if (!(*path = HeapAlloc(GetProcessHeap(), 0, lstrlenW(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 = strdupW(path))) goto error; if (!((*entry)->config.lpServiceStartName = strdupW(SZ_LOCAL_SYSTEM))) goto error; if (!((*entry)->config.lpDisplayName = strdupW(name))) goto error; if (service->config.lpLoadOrderGroup && !((*entry)->config.lpLoadOrderGroup = strdupW(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); HeapFree(GetProcessHeap(), 0, path); return err; } if ((process = get_winedevice_process(service_entry, path, is_wow64))) { HeapFree(GetProcessHeap(), 0, path); goto found; } err = add_winedevice_service(service_entry, path, is_wow64, &winedevice_entry); HeapFree(GetProcessHeap(), 0, path); if (err != ERROR_SUCCESS) { service_unlock(service_entry); return err; } group = strdupW(winedevice_entry->config.lpLoadOrderGroup); service_unlock(service_entry); err = service_start(winedevice_entry, group != NULL, (const WCHAR **)&group); HeapFree(GetProcessHeap(), 0, 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 = %u\n", wine_dbgstr_w(service_entry->name), err); service_unlock(service_entry); HeapFree(GetProcessHeap(), 0, 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)) { CreateEnvironmentBlock(&environment, token, FALSE); 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, environment, NULL, &si, &pi); HeapFree(GetProcessHeap(), 0, path); if (!r) { err = GetLastError(); process_terminate(process); release_process(process); return err; } 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 %d\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 (!HasOverlappedIoCompleted( &overlapped )) { 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 = HeapAlloc(GetProcessHeap(), 0, 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; HeapFree(GetProcessHeap(), 0, 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 %d\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 ); } 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; HANDLE started_event; DWORD err; 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); SetEvent(started_event); WaitForSingleObject(exit_event, 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 %d\n", err); return err; }