registry.cpp 29 KB

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  1. #include "nssm.h"
  2. extern const TCHAR *exit_action_strings[];
  3. int create_messages() {
  4. HKEY key;
  5. TCHAR registry[KEY_LENGTH];
  6. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("SYSTEM\\CurrentControlSet\\Services\\EventLog\\Application\\%s"), NSSM) < 0) {
  7. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("eventlog registry"), _T("create_messages()"), 0);
  8. return 1;
  9. }
  10. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, 0) != ERROR_SUCCESS) {
  11. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  12. return 2;
  13. }
  14. /* Get path of this program */
  15. TCHAR path[MAX_PATH];
  16. GetModuleFileName(0, path, _countof(path));
  17. /* Try to register the module but don't worry so much on failure */
  18. RegSetValueEx(key, _T("EventMessageFile"), 0, REG_SZ, (const unsigned char *) path, (unsigned long) (_tcslen(path) + 1) * sizeof(TCHAR));
  19. unsigned long types = EVENTLOG_INFORMATION_TYPE | EVENTLOG_WARNING_TYPE | EVENTLOG_ERROR_TYPE;
  20. RegSetValueEx(key, _T("TypesSupported"), 0, REG_DWORD, (const unsigned char *) &types, sizeof(types));
  21. return 0;
  22. }
  23. int create_parameters(nssm_service_t *service, bool editing) {
  24. /* Try to open the registry */
  25. HKEY key = open_registry(service->name, KEY_WRITE);
  26. if (! key) return 1;
  27. /* Try to create the parameters */
  28. if (set_expand_string(key, NSSM_REG_EXE, service->exe)) {
  29. RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
  30. RegCloseKey(key);
  31. return 2;
  32. }
  33. if (set_expand_string(key, NSSM_REG_FLAGS, service->flags)) {
  34. RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
  35. RegCloseKey(key);
  36. return 3;
  37. }
  38. if (set_expand_string(key, NSSM_REG_DIR, service->dir)) {
  39. RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
  40. RegCloseKey(key);
  41. return 4;
  42. }
  43. /* Other non-default parameters. May fail. */
  44. if (service->priority != NORMAL_PRIORITY_CLASS) set_number(key, NSSM_REG_PRIORITY, service->priority);
  45. else if (editing) RegDeleteValue(key, NSSM_REG_PRIORITY);
  46. if (service->affinity) {
  47. TCHAR *string;
  48. if (! affinity_mask_to_string(service->affinity, &string)) {
  49. if (RegSetValueEx(key, NSSM_REG_AFFINITY, 0, REG_SZ, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  50. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_AFFINITY, error_string(GetLastError()), 0);
  51. HeapFree(GetProcessHeap(), 0, string);
  52. return 5;
  53. }
  54. }
  55. if (string) HeapFree(GetProcessHeap(), 0, string);
  56. }
  57. else if (editing) RegDeleteValue(key, NSSM_REG_AFFINITY);
  58. unsigned long stop_method_skip = ~service->stop_method;
  59. if (stop_method_skip) set_number(key, NSSM_REG_STOP_METHOD_SKIP, stop_method_skip);
  60. else if (editing) RegDeleteValue(key, NSSM_REG_STOP_METHOD_SKIP);
  61. if (service->default_exit_action < NSSM_NUM_EXIT_ACTIONS) create_exit_action(service->name, exit_action_strings[service->default_exit_action], editing);
  62. if (service->restart_delay) set_number(key, NSSM_REG_RESTART_DELAY, service->restart_delay);
  63. else if (editing) RegDeleteValue(key, NSSM_REG_RESTART_DELAY);
  64. if (service->throttle_delay != NSSM_RESET_THROTTLE_RESTART) set_number(key, NSSM_REG_THROTTLE, service->throttle_delay);
  65. else if (editing) RegDeleteValue(key, NSSM_REG_THROTTLE);
  66. if (service->kill_console_delay != NSSM_KILL_CONSOLE_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD, service->kill_console_delay);
  67. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD);
  68. if (service->kill_window_delay != NSSM_KILL_WINDOW_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD, service->kill_window_delay);
  69. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD);
  70. if (service->kill_threads_delay != NSSM_KILL_THREADS_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_THREADS_GRACE_PERIOD, service->kill_threads_delay);
  71. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_THREADS_GRACE_PERIOD);
  72. if (service->stdin_path[0] || editing) {
  73. if (service->stdin_path[0]) set_expand_string(key, NSSM_REG_STDIN, service->stdin_path);
  74. else if (editing) RegDeleteValue(key, NSSM_REG_STDIN);
  75. if (service->stdin_sharing != NSSM_STDIN_SHARING) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING, service->stdin_sharing);
  76. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING);
  77. if (service->stdin_disposition != NSSM_STDIN_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION, service->stdin_disposition);
  78. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION);
  79. if (service->stdin_flags != NSSM_STDIN_FLAGS) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS, service->stdin_flags);
  80. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS);
  81. }
  82. if (service->stdout_path[0] || editing) {
  83. if (service->stdout_path[0]) set_expand_string(key, NSSM_REG_STDOUT, service->stdout_path);
  84. else if (editing) RegDeleteValue(key, NSSM_REG_STDOUT);
  85. if (service->stdout_sharing != NSSM_STDOUT_SHARING) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING, service->stdout_sharing);
  86. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING);
  87. if (service->stdout_disposition != NSSM_STDOUT_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION, service->stdout_disposition);
  88. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION);
  89. if (service->stdout_flags != NSSM_STDOUT_FLAGS) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS, service->stdout_flags);
  90. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS);
  91. }
  92. if (service->stderr_path[0] || editing) {
  93. if (service->stderr_path[0]) set_expand_string(key, NSSM_REG_STDERR, service->stderr_path);
  94. else if (editing) RegDeleteValue(key, NSSM_REG_STDERR);
  95. if (service->stderr_sharing != NSSM_STDERR_SHARING) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING, service->stderr_sharing);
  96. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING);
  97. if (service->stderr_disposition != NSSM_STDERR_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION, service->stderr_disposition);
  98. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION);
  99. if (service->stderr_flags != NSSM_STDERR_FLAGS) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS, service->stderr_flags);
  100. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS);
  101. }
  102. if (service->rotate_files) set_number(key, NSSM_REG_ROTATE, 1);
  103. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE);
  104. if (service->rotate_stdout_online) set_number(key, NSSM_REG_ROTATE_ONLINE, 1);
  105. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_ONLINE);
  106. if (service->rotate_seconds) set_number(key, NSSM_REG_ROTATE_SECONDS, service->rotate_seconds);
  107. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_SECONDS);
  108. if (service->rotate_bytes_low) set_number(key, NSSM_REG_ROTATE_BYTES_LOW, service->rotate_bytes_low);
  109. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_LOW);
  110. if (service->rotate_bytes_high) set_number(key, NSSM_REG_ROTATE_BYTES_HIGH, service->rotate_bytes_high);
  111. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_HIGH);
  112. /* Environment */
  113. if (service->env) {
  114. if (RegSetValueEx(key, NSSM_REG_ENV, 0, REG_MULTI_SZ, (const unsigned char *) service->env, (unsigned long) service->envlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  115. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
  116. }
  117. }
  118. else if (editing) RegDeleteValue(key, NSSM_REG_ENV);
  119. if (service->env_extra) {
  120. if (RegSetValueEx(key, NSSM_REG_ENV_EXTRA, 0, REG_MULTI_SZ, (const unsigned char *) service->env_extra, (unsigned long) service->env_extralen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  121. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV_EXTRA, error_string(GetLastError()), 0);
  122. }
  123. }
  124. else if (editing) RegDeleteValue(key, NSSM_REG_ENV_EXTRA);
  125. /* Close registry. */
  126. RegCloseKey(key);
  127. return 0;
  128. }
  129. int create_exit_action(TCHAR *service_name, const TCHAR *action_string, bool editing) {
  130. /* Get registry */
  131. TCHAR registry[KEY_LENGTH];
  132. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, NSSM_REG_EXIT) < 0) {
  133. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("create_exit_action()"), 0);
  134. return 1;
  135. }
  136. /* Try to open the registry */
  137. HKEY key;
  138. unsigned long disposition;
  139. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
  140. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  141. return 2;
  142. }
  143. /* Do nothing if the key already existed */
  144. if (disposition == REG_OPENED_EXISTING_KEY && ! editing) {
  145. RegCloseKey(key);
  146. return 0;
  147. }
  148. /* Create the default value */
  149. if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  150. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, error_string(GetLastError()), 0);
  151. RegCloseKey(key);
  152. return 3;
  153. }
  154. /* Close registry */
  155. RegCloseKey(key);
  156. return 0;
  157. }
  158. int set_environment(TCHAR *service_name, HKEY key, TCHAR *value, TCHAR **env, unsigned long *envlen) {
  159. unsigned long type = REG_MULTI_SZ;
  160. /* Dummy test to find buffer size */
  161. unsigned long ret = RegQueryValueEx(key, value, 0, &type, NULL, envlen);
  162. if (ret != ERROR_SUCCESS) {
  163. *env = 0;
  164. *envlen = 0;
  165. /* The service probably doesn't have any environment configured */
  166. if (ret == ERROR_FILE_NOT_FOUND) return 0;
  167. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  168. return 1;
  169. }
  170. if (type != REG_MULTI_SZ) {
  171. *env = 0;
  172. *envlen = 0;
  173. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_INVALID_ENVIRONMENT_STRING_TYPE, value, service_name, 0);
  174. return 2;
  175. }
  176. /* Probably not possible */
  177. if (! *envlen) return 0;
  178. /* Previously initialised? */
  179. if (*env) HeapFree(GetProcessHeap(), 0, *env);
  180. *env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, *envlen);
  181. if (! *env) {
  182. *envlen = 0;
  183. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("set_environment()"), 0);
  184. return 3;
  185. }
  186. /* Actually get the strings */
  187. ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) *env, envlen);
  188. if (ret != ERROR_SUCCESS) {
  189. HeapFree(GetProcessHeap(), 0, *env);
  190. *env = 0;
  191. *envlen = 0;
  192. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  193. return 4;
  194. }
  195. return 0;
  196. }
  197. /* Replace NULL with CRLF. Leave NULL NULL as the end marker. */
  198. int format_environment(TCHAR *env, unsigned long envlen, TCHAR **formatted, unsigned long *newlen) {
  199. unsigned long i, j;
  200. *newlen = envlen;
  201. if (! *newlen) {
  202. *formatted = 0;
  203. return 0;
  204. }
  205. for (i = 0; i < envlen; i++) if (! env[i] && env[i + 1]) ++*newlen;
  206. *formatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  207. if (! *formatted) {
  208. *newlen = 0;
  209. return 1;
  210. }
  211. for (i = 0, j = 0; i < envlen; i++) {
  212. (*formatted)[j] = env[i];
  213. if (! env[i]) {
  214. if (env[i + 1]) {
  215. (*formatted)[j] = _T('\r');
  216. (*formatted)[++j] = _T('\n');
  217. }
  218. }
  219. j++;
  220. }
  221. return 0;
  222. }
  223. /* Strip CR and replace LF with NULL. */
  224. int unformat_environment(TCHAR *env, unsigned long envlen, TCHAR **unformatted, unsigned long *newlen) {
  225. unsigned long i, j;
  226. *newlen = 0;
  227. if (! envlen) {
  228. *unformatted = 0;
  229. return 0;
  230. }
  231. for (i = 0; i < envlen; i++) if (env[i] != _T('\r')) ++*newlen;
  232. /* Must end with two NULLs. */
  233. *newlen += 2;
  234. *unformatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  235. if (! *unformatted) return 1;
  236. for (i = 0, j = 0; i < envlen; i++) {
  237. if (env[i] == _T('\r')) continue;
  238. if (env[i] == _T('\n')) (*unformatted)[j] = _T('\0');
  239. else (*unformatted)[j] = env[i];
  240. j++;
  241. }
  242. return 0;
  243. }
  244. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise, bool must_exist) {
  245. TCHAR *buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, datalen);
  246. if (! buffer) {
  247. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("expand_parameter()"), 0);
  248. return 1;
  249. }
  250. ZeroMemory(data, datalen);
  251. unsigned long type = REG_EXPAND_SZ;
  252. unsigned long buflen = datalen;
  253. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  254. if (ret != ERROR_SUCCESS) {
  255. unsigned long error = GetLastError();
  256. HeapFree(GetProcessHeap(), 0, buffer);
  257. if (ret == ERROR_FILE_NOT_FOUND) {
  258. if (! must_exist) return 0;
  259. }
  260. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(error), 0);
  261. return 2;
  262. }
  263. /* Paths aren't allowed to contain quotes. */
  264. if (sanitise) PathUnquoteSpaces(buffer);
  265. /* Technically we shouldn't expand environment strings from REG_SZ values */
  266. if (type != REG_EXPAND_SZ) {
  267. memmove(data, buffer, buflen);
  268. HeapFree(GetProcessHeap(), 0, buffer);
  269. return 0;
  270. }
  271. ret = ExpandEnvironmentStrings((TCHAR *) buffer, data, datalen);
  272. if (! ret || ret > datalen) {
  273. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, buffer, error_string(GetLastError()), 0);
  274. HeapFree(GetProcessHeap(), 0, buffer);
  275. return 3;
  276. }
  277. HeapFree(GetProcessHeap(), 0, buffer);
  278. return 0;
  279. }
  280. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  281. return expand_parameter(key, value, data, datalen, sanitise, true);
  282. }
  283. /*
  284. Sets a string in the registry.
  285. Returns: 0 if it was set.
  286. 1 on error.
  287. */
  288. int set_expand_string(HKEY key, TCHAR *value, TCHAR *string) {
  289. if (RegSetValueEx(key, value, 0, REG_EXPAND_SZ, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) == ERROR_SUCCESS) return 0;
  290. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  291. return 1;
  292. }
  293. /*
  294. Set an unsigned long in the registry.
  295. Returns: 0 if it was set.
  296. 1 on error.
  297. */
  298. int set_number(HKEY key, TCHAR *value, unsigned long number) {
  299. if (RegSetValueEx(key, value, 0, REG_DWORD, (const unsigned char *) &number, sizeof(number)) == ERROR_SUCCESS) return 0;
  300. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  301. return 1;
  302. }
  303. /*
  304. Query an unsigned long from the registry.
  305. Returns: 1 if a number was retrieved.
  306. 0 if none was found and must_exist is false.
  307. -1 if none was found and must_exist is true.
  308. -2 otherwise.
  309. */
  310. int get_number(HKEY key, TCHAR *value, unsigned long *number, bool must_exist) {
  311. unsigned long type = REG_DWORD;
  312. unsigned long number_len = sizeof(unsigned long);
  313. int ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) number, &number_len);
  314. if (ret == ERROR_SUCCESS) return 1;
  315. if (ret == ERROR_FILE_NOT_FOUND) {
  316. if (! must_exist) return 0;
  317. }
  318. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  319. if (ret == ERROR_FILE_NOT_FOUND) return -1;
  320. return -2;
  321. }
  322. int get_number(HKEY key, TCHAR *value, unsigned long *number) {
  323. return get_number(key, value, number, true);
  324. }
  325. void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned long *buffer, unsigned long default_value, unsigned long event) {
  326. unsigned long type = REG_DWORD;
  327. unsigned long buflen = sizeof(unsigned long);
  328. bool ok = false;
  329. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  330. if (ret != ERROR_SUCCESS) {
  331. if (ret != ERROR_FILE_NOT_FOUND) {
  332. if (type != REG_DWORD) {
  333. TCHAR milliseconds[16];
  334. _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), default_value);
  335. log_event(EVENTLOG_WARNING_TYPE, event, service_name, value, milliseconds, 0);
  336. }
  337. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  338. }
  339. }
  340. else ok = true;
  341. if (! ok) *buffer = default_value;
  342. }
  343. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {
  344. /* Get registry */
  345. TCHAR registry[KEY_LENGTH];
  346. HKEY key;
  347. int ret;
  348. if (sub) ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, sub);
  349. else ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service_name);
  350. if (ret < 0) {
  351. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("open_registry()"), 0);
  352. return 0;
  353. }
  354. if (sam & KEY_WRITE) {
  355. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {
  356. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  357. return 0;
  358. }
  359. }
  360. else {
  361. if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key) != ERROR_SUCCESS) {
  362. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  363. return 0;
  364. }
  365. }
  366. return key;
  367. }
  368. HKEY open_registry(const TCHAR *service_name, REGSAM sam) {
  369. return open_registry(service_name, 0, sam);
  370. }
  371. int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
  372. unsigned long ret;
  373. /* Try to open the registry */
  374. HKEY key = open_registry(service->name, KEY_READ);
  375. if (! key) return 1;
  376. /* Try to get executable file - MUST succeed */
  377. if (expand_parameter(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), false)) {
  378. RegCloseKey(key);
  379. return 3;
  380. }
  381. /* Try to get flags - may fail and we don't care */
  382. if (expand_parameter(key, NSSM_REG_FLAGS, service->flags, sizeof(service->flags), false)) {
  383. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_FLAGS, NSSM_REG_FLAGS, service->name, service->exe, 0);
  384. ZeroMemory(service->flags, sizeof(service->flags));
  385. }
  386. /* Try to get startup directory - may fail and we fall back to a default */
  387. if (expand_parameter(key, NSSM_REG_DIR, service->dir, sizeof(service->dir), true) || ! service->dir[0]) {
  388. _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);
  389. strip_basename(service->dir);
  390. if (service->dir[0] == _T('\0')) {
  391. /* Help! */
  392. ret = GetWindowsDirectory(service->dir, sizeof(service->dir));
  393. if (! ret || ret > sizeof(service->dir)) {
  394. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_NO_DIR_AND_NO_FALLBACK, NSSM_REG_DIR, service->name, 0);
  395. RegCloseKey(key);
  396. return 4;
  397. }
  398. }
  399. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_DIR, NSSM_REG_DIR, service->name, service->dir, 0);
  400. }
  401. /* Try to get processor affinity - may fail. */
  402. TCHAR buffer[512];
  403. if (expand_parameter(key, NSSM_REG_AFFINITY, buffer, sizeof(buffer), false, false) || ! buffer[0]) service->affinity = 0LL;
  404. else if (affinity_string_to_mask(buffer, &service->affinity)) {
  405. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_AFFINITY_MASK, service->name, buffer);
  406. service->affinity = 0LL;
  407. }
  408. else {
  409. DWORD_PTR affinity, system_affinity;
  410. if (GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) {
  411. _int64 effective_affinity = service->affinity & system_affinity;
  412. if (effective_affinity != service->affinity) {
  413. TCHAR *system = 0;
  414. if (! affinity_mask_to_string(system_affinity, &system)) {
  415. TCHAR *effective = 0;
  416. if (! affinity_mask_to_string(effective_affinity, &effective)) {
  417. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_EFFECTIVE_AFFINITY_MASK, service->name, buffer, system, effective, 0);
  418. }
  419. HeapFree(GetProcessHeap(), 0, effective);
  420. }
  421. HeapFree(GetProcessHeap(), 0, system);
  422. }
  423. }
  424. }
  425. /* Try to get environment variables - may fail */
  426. set_environment(service->name, key, NSSM_REG_ENV, &service->env, &service->envlen);
  427. /* Environment variables to add to existing rather than replace - may fail. */
  428. set_environment(service->name, key, NSSM_REG_ENV_EXTRA, &service->env_extra, &service->env_extralen);
  429. if (si) {
  430. if (service->env_extra) {
  431. TCHAR *env;
  432. unsigned long envlen;
  433. /* Copy our environment for the application. */
  434. if (! service->env) {
  435. TCHAR *rawenv = GetEnvironmentStrings();
  436. env = rawenv;
  437. if (env) {
  438. /*
  439. The environment block starts with variables of the form
  440. =C:=C:\Windows\System32 which we ignore.
  441. */
  442. while (*env == _T('=')) {
  443. for ( ; *env; env++);
  444. env++;
  445. }
  446. envlen = 0;
  447. if (*env) {
  448. while (true) {
  449. for ( ; env[envlen]; envlen++);
  450. if (! env[++envlen]) break;
  451. }
  452. envlen++;
  453. service->envlen = envlen * sizeof(TCHAR);
  454. service->env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, service->envlen);
  455. memmove(service->env, env, service->envlen);
  456. FreeEnvironmentStrings(rawenv);
  457. }
  458. }
  459. }
  460. /* Append extra variables to configured variables. */
  461. if (service->env) {
  462. envlen = service->envlen + service->env_extralen - sizeof(TCHAR)/*?*/;
  463. env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, envlen);
  464. if (env) {
  465. memmove(env, service->env, service->envlen - sizeof(TCHAR));
  466. /* envlen is in bytes but env[i] is in characters. */
  467. memmove(env + (service->envlen / sizeof(TCHAR)) - 1, service->env_extra, service->env_extralen);
  468. HeapFree(GetProcessHeap(), 0, service->env);
  469. HeapFree(GetProcessHeap(), 0, service->env_extra);
  470. service->env = env;
  471. service->envlen = envlen;
  472. }
  473. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("environment"), _T("get_parameters()"), 0);
  474. }
  475. else {
  476. /* Huh? No environment at all? */
  477. service->env = service->env_extra;
  478. service->envlen = service->env_extralen;
  479. }
  480. }
  481. service->env_extra = 0;
  482. service->env_extralen = 0;
  483. }
  484. /* Try to get priority - may fail. */
  485. unsigned long priority;
  486. if (get_number(key, NSSM_REG_PRIORITY, &priority, false) == 1) {
  487. if (priority == (priority & priority_mask())) service->priority = priority;
  488. else log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_PRIORITY, service->name, NSSM_REG_PRIORITY, 0);
  489. }
  490. /* Try to get file rotation settings - may fail. */
  491. unsigned long rotate_files;
  492. if (get_number(key, NSSM_REG_ROTATE, &rotate_files, false) == 1) {
  493. if (rotate_files) service->rotate_files = true;
  494. else service->rotate_files = false;
  495. }
  496. else service->rotate_files = false;
  497. if (get_number(key, NSSM_REG_ROTATE_ONLINE, &rotate_files, false) == 1) {
  498. if (rotate_files) service->rotate_stdout_online = service->rotate_stderr_online = true;
  499. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  500. }
  501. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  502. if (get_number(key, NSSM_REG_ROTATE_SECONDS, &service->rotate_seconds, false) != 1) service->rotate_seconds = 0;
  503. if (get_number(key, NSSM_REG_ROTATE_BYTES_LOW, &service->rotate_bytes_low, false) != 1) service->rotate_bytes_low = 0;
  504. if (get_number(key, NSSM_REG_ROTATE_BYTES_HIGH, &service->rotate_bytes_high, false) != 1) service->rotate_bytes_high = 0;
  505. /* Change to startup directory in case stdout/stderr are relative paths. */
  506. TCHAR cwd[MAX_PATH];
  507. GetCurrentDirectory(_countof(cwd), cwd);
  508. SetCurrentDirectory(service->dir);
  509. /* Try to get stdout and stderr */
  510. if (get_output_handles(service, key, si)) {
  511. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_OUTPUT_HANDLES_FAILED, service->name, 0);
  512. RegCloseKey(key);
  513. SetCurrentDirectory(cwd);
  514. return 5;
  515. }
  516. /* Change back in case the startup directory needs to be deleted. */
  517. SetCurrentDirectory(cwd);
  518. /* Try to get mandatory restart delay */
  519. override_milliseconds(service->name, key, NSSM_REG_RESTART_DELAY, &service->restart_delay, 0, NSSM_EVENT_BOGUS_RESTART_DELAY);
  520. /* Try to get throttle restart delay */
  521. override_milliseconds(service->name, key, NSSM_REG_THROTTLE, &service->throttle_delay, NSSM_RESET_THROTTLE_RESTART, NSSM_EVENT_BOGUS_THROTTLE);
  522. /* Try to get service stop flags. */
  523. unsigned long type = REG_DWORD;
  524. unsigned long stop_method_skip;
  525. unsigned long buflen = sizeof(stop_method_skip);
  526. bool stop_ok = false;
  527. ret = RegQueryValueEx(key, NSSM_REG_STOP_METHOD_SKIP, 0, &type, (unsigned char *) &stop_method_skip, &buflen);
  528. if (ret != ERROR_SUCCESS) {
  529. if (ret != ERROR_FILE_NOT_FOUND) {
  530. if (type != REG_DWORD) {
  531. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_STOP_METHOD_SKIP, service->name, NSSM_REG_STOP_METHOD_SKIP, NSSM, 0);
  532. }
  533. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, NSSM_REG_STOP_METHOD_SKIP, error_string(GetLastError()), 0);
  534. }
  535. }
  536. else stop_ok = true;
  537. /* Try all methods except those requested to be skipped. */
  538. service->stop_method = ~0;
  539. if (stop_ok) service->stop_method &= ~stop_method_skip;
  540. /* Try to get kill delays - may fail. */
  541. override_milliseconds(service->name, key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD, &service->kill_console_delay, NSSM_KILL_CONSOLE_GRACE_PERIOD, NSSM_EVENT_BOGUS_KILL_CONSOLE_GRACE_PERIOD);
  542. override_milliseconds(service->name, key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD, &service->kill_window_delay, NSSM_KILL_WINDOW_GRACE_PERIOD, NSSM_EVENT_BOGUS_KILL_WINDOW_GRACE_PERIOD);
  543. override_milliseconds(service->name, key, NSSM_REG_KILL_THREADS_GRACE_PERIOD, &service->kill_threads_delay, NSSM_KILL_THREADS_GRACE_PERIOD, NSSM_EVENT_BOGUS_KILL_THREADS_GRACE_PERIOD);
  544. /* Try to get default exit action. */
  545. bool default_action;
  546. service->default_exit_action = NSSM_EXIT_RESTART;
  547. TCHAR action_string[ACTION_LEN];
  548. if (! get_exit_action(service->name, 0, action_string, &default_action)) {
  549. for (int i = 0; exit_action_strings[i]; i++) {
  550. if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
  551. service->default_exit_action = i;
  552. break;
  553. }
  554. }
  555. }
  556. /* Close registry */
  557. RegCloseKey(key);
  558. return 0;
  559. }
  560. /*
  561. Sets the string for the exit action corresponding to the exit code.
  562. ret is a pointer to an unsigned long containing the exit code.
  563. If ret is NULL, we retrieve the default exit action unconditionally.
  564. action is a buffer which receives the string.
  565. default_action is a pointer to a bool which is set to false if there
  566. was an explicit string for the given exit code, or true if we are
  567. returning the default action.
  568. Returns: 0 on success.
  569. 1 on error.
  570. */
  571. int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {
  572. /* Are we returning the default action or a status-specific one? */
  573. *default_action = ! ret;
  574. /* Try to open the registry */
  575. HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
  576. if (! key) return 1;
  577. unsigned long type = REG_SZ;
  578. unsigned long action_len = ACTION_LEN;
  579. TCHAR code[16];
  580. if (! ret) code[0] = _T('\0');
  581. else if (_sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), *ret) < 0) {
  582. RegCloseKey(key);
  583. return get_exit_action(service_name, 0, action, default_action);
  584. }
  585. if (RegQueryValueEx(key, code, 0, &type, (unsigned char *) action, &action_len) != ERROR_SUCCESS) {
  586. RegCloseKey(key);
  587. /* Try again with * as the key if an exit code was defined */
  588. if (ret) return get_exit_action(service_name, 0, action, default_action);
  589. return 0;
  590. }
  591. /* Close registry */
  592. RegCloseKey(key);
  593. return 0;
  594. }