registry.cpp 30 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[PATH_LENGTH];
  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. if (service->no_console) set_number(key, NSSM_REG_NO_CONSOLE, 1);
  113. else if (editing) RegDeleteValue(key, NSSM_REG_NO_CONSOLE);
  114. /* Environment */
  115. if (service->env) {
  116. if (RegSetValueEx(key, NSSM_REG_ENV, 0, REG_MULTI_SZ, (const unsigned char *) service->env, (unsigned long) service->envlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  117. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
  118. }
  119. }
  120. else if (editing) RegDeleteValue(key, NSSM_REG_ENV);
  121. if (service->env_extra) {
  122. 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) {
  123. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV_EXTRA, error_string(GetLastError()), 0);
  124. }
  125. }
  126. else if (editing) RegDeleteValue(key, NSSM_REG_ENV_EXTRA);
  127. /* Close registry. */
  128. RegCloseKey(key);
  129. return 0;
  130. }
  131. int create_exit_action(TCHAR *service_name, const TCHAR *action_string, bool editing) {
  132. /* Get registry */
  133. TCHAR registry[KEY_LENGTH];
  134. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, NSSM_REG_EXIT) < 0) {
  135. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("create_exit_action()"), 0);
  136. return 1;
  137. }
  138. /* Try to open the registry */
  139. HKEY key;
  140. unsigned long disposition;
  141. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
  142. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  143. return 2;
  144. }
  145. /* Do nothing if the key already existed */
  146. if (disposition == REG_OPENED_EXISTING_KEY && ! editing) {
  147. RegCloseKey(key);
  148. return 0;
  149. }
  150. /* Create the default value */
  151. if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  152. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, error_string(GetLastError()), 0);
  153. RegCloseKey(key);
  154. return 3;
  155. }
  156. /* Close registry */
  157. RegCloseKey(key);
  158. return 0;
  159. }
  160. int get_environment(TCHAR *service_name, HKEY key, TCHAR *value, TCHAR **env, unsigned long *envlen) {
  161. unsigned long type = REG_MULTI_SZ;
  162. /* Dummy test to find buffer size */
  163. unsigned long ret = RegQueryValueEx(key, value, 0, &type, NULL, envlen);
  164. if (ret != ERROR_SUCCESS) {
  165. *env = 0;
  166. *envlen = 0;
  167. /* The service probably doesn't have any environment configured */
  168. if (ret == ERROR_FILE_NOT_FOUND) return 0;
  169. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  170. return 1;
  171. }
  172. if (type != REG_MULTI_SZ) {
  173. *env = 0;
  174. *envlen = 0;
  175. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_INVALID_ENVIRONMENT_STRING_TYPE, value, service_name, 0);
  176. return 2;
  177. }
  178. /* Probably not possible */
  179. if (! *envlen) return 0;
  180. /* Previously initialised? */
  181. if (*env) HeapFree(GetProcessHeap(), 0, *env);
  182. *env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, *envlen);
  183. if (! *env) {
  184. *envlen = 0;
  185. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_environment()"), 0);
  186. return 3;
  187. }
  188. /* Actually get the strings */
  189. ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) *env, envlen);
  190. if (ret != ERROR_SUCCESS) {
  191. HeapFree(GetProcessHeap(), 0, *env);
  192. *env = 0;
  193. *envlen = 0;
  194. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  195. return 4;
  196. }
  197. return 0;
  198. }
  199. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool expand, bool sanitise, bool must_exist) {
  200. TCHAR *buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, datalen);
  201. if (! buffer) {
  202. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_string()"), 0);
  203. return 1;
  204. }
  205. ZeroMemory(data, datalen);
  206. unsigned long type = REG_EXPAND_SZ;
  207. unsigned long buflen = datalen;
  208. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  209. if (ret != ERROR_SUCCESS) {
  210. unsigned long error = GetLastError();
  211. HeapFree(GetProcessHeap(), 0, buffer);
  212. if (ret == ERROR_FILE_NOT_FOUND) {
  213. if (! must_exist) return 0;
  214. }
  215. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(error), 0);
  216. return 2;
  217. }
  218. /* Paths aren't allowed to contain quotes. */
  219. if (sanitise) PathUnquoteSpaces(buffer);
  220. /* Do we want to expand the string? */
  221. if (! expand) {
  222. if (type == REG_EXPAND_SZ) type = REG_SZ;
  223. }
  224. /* Technically we shouldn't expand environment strings from REG_SZ values */
  225. if (type != REG_EXPAND_SZ) {
  226. memmove(data, buffer, buflen);
  227. HeapFree(GetProcessHeap(), 0, buffer);
  228. return 0;
  229. }
  230. ret = ExpandEnvironmentStrings((TCHAR *) buffer, data, datalen);
  231. if (! ret || ret > datalen) {
  232. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, buffer, error_string(GetLastError()), 0);
  233. HeapFree(GetProcessHeap(), 0, buffer);
  234. return 3;
  235. }
  236. HeapFree(GetProcessHeap(), 0, buffer);
  237. return 0;
  238. }
  239. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  240. return get_string(key, value, data, datalen, false, sanitise, true);
  241. }
  242. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise, bool must_exist) {
  243. return get_string(key, value, data, datalen, true, sanitise, must_exist);
  244. }
  245. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  246. return expand_parameter(key, value, data, datalen, sanitise, true);
  247. }
  248. /*
  249. Sets a string in the registry.
  250. Returns: 0 if it was set.
  251. 1 on error.
  252. */
  253. int set_string(HKEY key, TCHAR *value, TCHAR *string, bool expand) {
  254. unsigned long type = expand ? REG_EXPAND_SZ : REG_SZ;
  255. if (RegSetValueEx(key, value, 0, type, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) == ERROR_SUCCESS) return 0;
  256. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  257. return 1;
  258. }
  259. int set_string(HKEY key, TCHAR *value, TCHAR *string) {
  260. return set_string(key, value, string, false);
  261. return 1;
  262. }
  263. int set_expand_string(HKEY key, TCHAR *value, TCHAR *string) {
  264. return set_string(key, value, string, true);
  265. return 1;
  266. }
  267. /*
  268. Set an unsigned long in the registry.
  269. Returns: 0 if it was set.
  270. 1 on error.
  271. */
  272. int set_number(HKEY key, TCHAR *value, unsigned long number) {
  273. if (RegSetValueEx(key, value, 0, REG_DWORD, (const unsigned char *) &number, sizeof(number)) == ERROR_SUCCESS) return 0;
  274. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  275. return 1;
  276. }
  277. /*
  278. Query an unsigned long from the registry.
  279. Returns: 1 if a number was retrieved.
  280. 0 if none was found and must_exist is false.
  281. -1 if none was found and must_exist is true.
  282. -2 otherwise.
  283. */
  284. int get_number(HKEY key, TCHAR *value, unsigned long *number, bool must_exist) {
  285. unsigned long type = REG_DWORD;
  286. unsigned long number_len = sizeof(unsigned long);
  287. int ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) number, &number_len);
  288. if (ret == ERROR_SUCCESS) return 1;
  289. if (ret == ERROR_FILE_NOT_FOUND) {
  290. if (! must_exist) return 0;
  291. }
  292. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  293. if (ret == ERROR_FILE_NOT_FOUND) return -1;
  294. return -2;
  295. }
  296. int get_number(HKEY key, TCHAR *value, unsigned long *number) {
  297. return get_number(key, value, number, true);
  298. }
  299. /* Replace NULL with CRLF. Leave NULL NULL as the end marker. */
  300. int format_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **formatted, unsigned long *newlen) {
  301. unsigned long i, j;
  302. *newlen = dnlen;
  303. if (! *newlen) {
  304. *formatted = 0;
  305. return 0;
  306. }
  307. for (i = 0; i < dnlen; i++) if (! dn[i] && dn[i + 1]) ++*newlen;
  308. *formatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  309. if (! *formatted) {
  310. *newlen = 0;
  311. return 1;
  312. }
  313. for (i = 0, j = 0; i < dnlen; i++) {
  314. (*formatted)[j] = dn[i];
  315. if (! dn[i]) {
  316. if (dn[i + 1]) {
  317. (*formatted)[j] = _T('\r');
  318. (*formatted)[++j] = _T('\n');
  319. }
  320. }
  321. j++;
  322. }
  323. return 0;
  324. }
  325. /* Strip CR and replace LF with NULL. */
  326. int unformat_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **unformatted, unsigned long *newlen) {
  327. unsigned long i, j;
  328. *newlen = 0;
  329. if (! dnlen) {
  330. *unformatted = 0;
  331. return 0;
  332. }
  333. for (i = 0; i < dnlen; i++) if (dn[i] != _T('\r')) ++*newlen;
  334. /* Skip blank lines. */
  335. for (i = 0; i < dnlen; i++) {
  336. if (dn[i] == _T('\r') && dn[i + 1] == _T('\n')) {
  337. /* This is the last CRLF. */
  338. if (i >= dnlen - 2) break;
  339. /*
  340. Strip at the start of the block or if the next characters are
  341. CRLF too.
  342. */
  343. if (! i || (dn[i + 2] == _T('\r') && dn[i + 3] == _T('\n'))) {
  344. for (j = i + 2; j < dnlen; j++) dn[j - 2] = dn[j];
  345. dn[dnlen--] = _T('\0');
  346. dn[dnlen--] = _T('\0');
  347. i--;
  348. --*newlen;
  349. }
  350. }
  351. }
  352. /* Must end with two NULLs. */
  353. *newlen += 2;
  354. *unformatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  355. if (! *unformatted) return 1;
  356. for (i = 0, j = 0; i < dnlen; i++) {
  357. if (dn[i] == _T('\r')) continue;
  358. if (dn[i] == _T('\n')) (*unformatted)[j] = _T('\0');
  359. else (*unformatted)[j] = dn[i];
  360. j++;
  361. }
  362. return 0;
  363. }
  364. void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned long *buffer, unsigned long default_value, unsigned long event) {
  365. unsigned long type = REG_DWORD;
  366. unsigned long buflen = sizeof(unsigned long);
  367. bool ok = false;
  368. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  369. if (ret != ERROR_SUCCESS) {
  370. if (ret != ERROR_FILE_NOT_FOUND) {
  371. if (type != REG_DWORD) {
  372. TCHAR milliseconds[16];
  373. _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), default_value);
  374. log_event(EVENTLOG_WARNING_TYPE, event, service_name, value, milliseconds, 0);
  375. }
  376. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  377. }
  378. }
  379. else ok = true;
  380. if (! ok) *buffer = default_value;
  381. }
  382. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {
  383. /* Get registry */
  384. TCHAR registry[KEY_LENGTH];
  385. HKEY key;
  386. int ret;
  387. if (sub) ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, sub);
  388. else ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service_name);
  389. if (ret < 0) {
  390. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("open_registry()"), 0);
  391. return 0;
  392. }
  393. if (sam & KEY_WRITE) {
  394. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {
  395. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  396. return 0;
  397. }
  398. }
  399. else {
  400. if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key) != ERROR_SUCCESS) {
  401. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  402. return 0;
  403. }
  404. }
  405. return key;
  406. }
  407. HKEY open_registry(const TCHAR *service_name, REGSAM sam) {
  408. return open_registry(service_name, 0, sam);
  409. }
  410. int get_io_parameters(nssm_service_t *service, HKEY key) {
  411. /* stdin */
  412. if (get_createfile_parameters(key, NSSM_REG_STDIN, service->stdin_path, &service->stdin_sharing, NSSM_STDIN_SHARING, &service->stdin_disposition, NSSM_STDIN_DISPOSITION, &service->stdin_flags, NSSM_STDIN_FLAGS)) {
  413. service->stdin_sharing = service->stdin_disposition = service->stdin_flags = 0;
  414. ZeroMemory(service->stdin_path, _countof(service->stdin_path) * sizeof(TCHAR));
  415. return 1;
  416. }
  417. /* stdout */
  418. if (get_createfile_parameters(key, NSSM_REG_STDOUT, service->stdout_path, &service->stdout_sharing, NSSM_STDOUT_SHARING, &service->stdout_disposition, NSSM_STDOUT_DISPOSITION, &service->stdout_flags, NSSM_STDOUT_FLAGS)) {
  419. service->stdout_sharing = service->stdout_disposition = service->stdout_flags = 0;
  420. ZeroMemory(service->stdout_path, _countof(service->stdout_path) * sizeof(TCHAR));
  421. return 2;
  422. }
  423. /* stderr */
  424. if (get_createfile_parameters(key, NSSM_REG_STDERR, service->stderr_path, &service->stderr_sharing, NSSM_STDERR_SHARING, &service->stderr_disposition, NSSM_STDERR_DISPOSITION, &service->stderr_flags, NSSM_STDERR_FLAGS)) {
  425. service->stderr_sharing = service->stderr_disposition = service->stderr_flags = 0;
  426. ZeroMemory(service->stderr_path, _countof(service->stderr_path) * sizeof(TCHAR));
  427. return 3;
  428. }
  429. return 0;
  430. }
  431. int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
  432. unsigned long ret;
  433. /* Try to open the registry */
  434. HKEY key = open_registry(service->name, KEY_READ);
  435. if (! key) return 1;
  436. /* Don't expand parameters when retrieving for the GUI. */
  437. bool expand = si ? true : false;
  438. /* Try to get executable file - MUST succeed */
  439. if (get_string(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), expand, false, true)) {
  440. RegCloseKey(key);
  441. return 3;
  442. }
  443. /* Try to get flags - may fail and we don't care */
  444. if (get_string(key, NSSM_REG_FLAGS, service->flags, sizeof(service->flags), expand, false, true)) {
  445. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_FLAGS, NSSM_REG_FLAGS, service->name, service->exe, 0);
  446. ZeroMemory(service->flags, sizeof(service->flags));
  447. }
  448. /* Try to get startup directory - may fail and we fall back to a default */
  449. if (get_string(key, NSSM_REG_DIR, service->dir, sizeof(service->dir), expand, true, true) || ! service->dir[0]) {
  450. _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);
  451. strip_basename(service->dir);
  452. if (service->dir[0] == _T('\0')) {
  453. /* Help! */
  454. ret = GetWindowsDirectory(service->dir, sizeof(service->dir));
  455. if (! ret || ret > sizeof(service->dir)) {
  456. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_NO_DIR_AND_NO_FALLBACK, NSSM_REG_DIR, service->name, 0);
  457. RegCloseKey(key);
  458. return 4;
  459. }
  460. }
  461. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_DIR, NSSM_REG_DIR, service->name, service->dir, 0);
  462. }
  463. /* Try to get processor affinity - may fail. */
  464. TCHAR buffer[512];
  465. if (get_string(key, NSSM_REG_AFFINITY, buffer, sizeof(buffer), false, false, false) || ! buffer[0]) service->affinity = 0LL;
  466. else if (affinity_string_to_mask(buffer, &service->affinity)) {
  467. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_AFFINITY_MASK, service->name, buffer);
  468. service->affinity = 0LL;
  469. }
  470. else {
  471. DWORD_PTR affinity, system_affinity;
  472. if (GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) {
  473. _int64 effective_affinity = service->affinity & system_affinity;
  474. if (effective_affinity != service->affinity) {
  475. TCHAR *system = 0;
  476. if (! affinity_mask_to_string(system_affinity, &system)) {
  477. TCHAR *effective = 0;
  478. if (! affinity_mask_to_string(effective_affinity, &effective)) {
  479. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_EFFECTIVE_AFFINITY_MASK, service->name, buffer, system, effective, 0);
  480. }
  481. HeapFree(GetProcessHeap(), 0, effective);
  482. }
  483. HeapFree(GetProcessHeap(), 0, system);
  484. }
  485. }
  486. }
  487. /* Try to get environment variables - may fail */
  488. get_environment(service->name, key, NSSM_REG_ENV, &service->env, &service->envlen);
  489. /* Environment variables to add to existing rather than replace - may fail. */
  490. get_environment(service->name, key, NSSM_REG_ENV_EXTRA, &service->env_extra, &service->env_extralen);
  491. /* Try to get priority - may fail. */
  492. unsigned long priority;
  493. if (get_number(key, NSSM_REG_PRIORITY, &priority, false) == 1) {
  494. if (priority == (priority & priority_mask())) service->priority = priority;
  495. else log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_PRIORITY, service->name, NSSM_REG_PRIORITY, 0);
  496. }
  497. /* Try to get file rotation settings - may fail. */
  498. unsigned long rotate_files;
  499. if (get_number(key, NSSM_REG_ROTATE, &rotate_files, false) == 1) {
  500. if (rotate_files) service->rotate_files = true;
  501. else service->rotate_files = false;
  502. }
  503. else service->rotate_files = false;
  504. if (get_number(key, NSSM_REG_ROTATE_ONLINE, &rotate_files, false) == 1) {
  505. if (rotate_files) service->rotate_stdout_online = service->rotate_stderr_online = true;
  506. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  507. }
  508. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  509. if (get_number(key, NSSM_REG_ROTATE_SECONDS, &service->rotate_seconds, false) != 1) service->rotate_seconds = 0;
  510. if (get_number(key, NSSM_REG_ROTATE_BYTES_LOW, &service->rotate_bytes_low, false) != 1) service->rotate_bytes_low = 0;
  511. if (get_number(key, NSSM_REG_ROTATE_BYTES_HIGH, &service->rotate_bytes_high, false) != 1) service->rotate_bytes_high = 0;
  512. /* Try to get force new console setting - may fail. */
  513. if (get_number(key, NSSM_REG_NO_CONSOLE, &service->no_console, false) != 1) service->no_console = 0;
  514. /* Change to startup directory in case stdout/stderr are relative paths. */
  515. TCHAR cwd[PATH_LENGTH];
  516. GetCurrentDirectory(_countof(cwd), cwd);
  517. SetCurrentDirectory(service->dir);
  518. /* Try to get stdout and stderr */
  519. if (get_io_parameters(service, key)) {
  520. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_OUTPUT_HANDLES_FAILED, service->name, 0);
  521. RegCloseKey(key);
  522. SetCurrentDirectory(cwd);
  523. return 5;
  524. }
  525. /* Change back in case the startup directory needs to be deleted. */
  526. SetCurrentDirectory(cwd);
  527. /* Try to get mandatory restart delay */
  528. override_milliseconds(service->name, key, NSSM_REG_RESTART_DELAY, &service->restart_delay, 0, NSSM_EVENT_BOGUS_RESTART_DELAY);
  529. /* Try to get throttle restart delay */
  530. override_milliseconds(service->name, key, NSSM_REG_THROTTLE, &service->throttle_delay, NSSM_RESET_THROTTLE_RESTART, NSSM_EVENT_BOGUS_THROTTLE);
  531. /* Try to get service stop flags. */
  532. unsigned long type = REG_DWORD;
  533. unsigned long stop_method_skip;
  534. unsigned long buflen = sizeof(stop_method_skip);
  535. bool stop_ok = false;
  536. ret = RegQueryValueEx(key, NSSM_REG_STOP_METHOD_SKIP, 0, &type, (unsigned char *) &stop_method_skip, &buflen);
  537. if (ret != ERROR_SUCCESS) {
  538. if (ret != ERROR_FILE_NOT_FOUND) {
  539. if (type != REG_DWORD) {
  540. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_STOP_METHOD_SKIP, service->name, NSSM_REG_STOP_METHOD_SKIP, NSSM, 0);
  541. }
  542. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, NSSM_REG_STOP_METHOD_SKIP, error_string(GetLastError()), 0);
  543. }
  544. }
  545. else stop_ok = true;
  546. /* Try all methods except those requested to be skipped. */
  547. service->stop_method = ~0;
  548. if (stop_ok) service->stop_method &= ~stop_method_skip;
  549. /* Try to get kill delays - may fail. */
  550. 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);
  551. 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);
  552. 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);
  553. /* Try to get default exit action. */
  554. bool default_action;
  555. service->default_exit_action = NSSM_EXIT_RESTART;
  556. TCHAR action_string[ACTION_LEN];
  557. if (! get_exit_action(service->name, 0, action_string, &default_action)) {
  558. for (int i = 0; exit_action_strings[i]; i++) {
  559. if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
  560. service->default_exit_action = i;
  561. break;
  562. }
  563. }
  564. }
  565. /* Close registry */
  566. RegCloseKey(key);
  567. return 0;
  568. }
  569. /*
  570. Sets the string for the exit action corresponding to the exit code.
  571. ret is a pointer to an unsigned long containing the exit code.
  572. If ret is NULL, we retrieve the default exit action unconditionally.
  573. action is a buffer which receives the string.
  574. default_action is a pointer to a bool which is set to false if there
  575. was an explicit string for the given exit code, or true if we are
  576. returning the default action.
  577. Returns: 0 on success.
  578. 1 on error.
  579. */
  580. int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {
  581. /* Are we returning the default action or a status-specific one? */
  582. *default_action = ! ret;
  583. /* Try to open the registry */
  584. HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
  585. if (! key) return 1;
  586. unsigned long type = REG_SZ;
  587. unsigned long action_len = ACTION_LEN;
  588. TCHAR code[16];
  589. if (! ret) code[0] = _T('\0');
  590. else if (_sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), *ret) < 0) {
  591. RegCloseKey(key);
  592. return get_exit_action(service_name, 0, action, default_action);
  593. }
  594. if (RegQueryValueEx(key, code, 0, &type, (unsigned char *) action, &action_len) != ERROR_SUCCESS) {
  595. RegCloseKey(key);
  596. /* Try again with * as the key if an exit code was defined */
  597. if (ret) return get_exit_action(service_name, 0, action, default_action);
  598. return 0;
  599. }
  600. /* Close registry */
  601. RegCloseKey(key);
  602. return 0;
  603. }