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->kill_process_tree) set_number(key, NSSM_REG_KILL_PROCESS_TREE, 0);
  73. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_PROCESS_TREE);
  74. if (service->stdin_path[0] || editing) {
  75. if (service->stdin_path[0]) set_expand_string(key, NSSM_REG_STDIN, service->stdin_path);
  76. else if (editing) RegDeleteValue(key, NSSM_REG_STDIN);
  77. if (service->stdin_sharing != NSSM_STDIN_SHARING) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING, service->stdin_sharing);
  78. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING);
  79. if (service->stdin_disposition != NSSM_STDIN_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION, service->stdin_disposition);
  80. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION);
  81. if (service->stdin_flags != NSSM_STDIN_FLAGS) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS, service->stdin_flags);
  82. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS);
  83. }
  84. if (service->stdout_path[0] || editing) {
  85. if (service->stdout_path[0]) set_expand_string(key, NSSM_REG_STDOUT, service->stdout_path);
  86. else if (editing) RegDeleteValue(key, NSSM_REG_STDOUT);
  87. if (service->stdout_sharing != NSSM_STDOUT_SHARING) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING, service->stdout_sharing);
  88. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING);
  89. if (service->stdout_disposition != NSSM_STDOUT_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION, service->stdout_disposition);
  90. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION);
  91. if (service->stdout_flags != NSSM_STDOUT_FLAGS) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS, service->stdout_flags);
  92. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS);
  93. }
  94. if (service->stderr_path[0] || editing) {
  95. if (service->stderr_path[0]) set_expand_string(key, NSSM_REG_STDERR, service->stderr_path);
  96. else if (editing) RegDeleteValue(key, NSSM_REG_STDERR);
  97. if (service->stderr_sharing != NSSM_STDERR_SHARING) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING, service->stderr_sharing);
  98. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING);
  99. if (service->stderr_disposition != NSSM_STDERR_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION, service->stderr_disposition);
  100. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION);
  101. if (service->stderr_flags != NSSM_STDERR_FLAGS) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS, service->stderr_flags);
  102. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS);
  103. }
  104. if (service->rotate_files) set_number(key, NSSM_REG_ROTATE, 1);
  105. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE);
  106. if (service->rotate_stdout_online) set_number(key, NSSM_REG_ROTATE_ONLINE, 1);
  107. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_ONLINE);
  108. if (service->rotate_seconds) set_number(key, NSSM_REG_ROTATE_SECONDS, service->rotate_seconds);
  109. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_SECONDS);
  110. if (service->rotate_bytes_low) set_number(key, NSSM_REG_ROTATE_BYTES_LOW, service->rotate_bytes_low);
  111. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_LOW);
  112. if (service->rotate_bytes_high) set_number(key, NSSM_REG_ROTATE_BYTES_HIGH, service->rotate_bytes_high);
  113. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_HIGH);
  114. if (service->no_console) set_number(key, NSSM_REG_NO_CONSOLE, 1);
  115. else if (editing) RegDeleteValue(key, NSSM_REG_NO_CONSOLE);
  116. /* Environment */
  117. if (service->env) {
  118. if (RegSetValueEx(key, NSSM_REG_ENV, 0, REG_MULTI_SZ, (const unsigned char *) service->env, (unsigned long) service->envlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  119. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
  120. }
  121. }
  122. else if (editing) RegDeleteValue(key, NSSM_REG_ENV);
  123. if (service->env_extra) {
  124. 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) {
  125. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV_EXTRA, error_string(GetLastError()), 0);
  126. }
  127. }
  128. else if (editing) RegDeleteValue(key, NSSM_REG_ENV_EXTRA);
  129. /* Close registry. */
  130. RegCloseKey(key);
  131. return 0;
  132. }
  133. int create_exit_action(TCHAR *service_name, const TCHAR *action_string, bool editing) {
  134. /* Get registry */
  135. TCHAR registry[KEY_LENGTH];
  136. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, NSSM_REG_EXIT) < 0) {
  137. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("create_exit_action()"), 0);
  138. return 1;
  139. }
  140. /* Try to open the registry */
  141. HKEY key;
  142. unsigned long disposition;
  143. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
  144. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  145. return 2;
  146. }
  147. /* Do nothing if the key already existed */
  148. if (disposition == REG_OPENED_EXISTING_KEY && ! editing) {
  149. RegCloseKey(key);
  150. return 0;
  151. }
  152. /* Create the default value */
  153. if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  154. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, error_string(GetLastError()), 0);
  155. RegCloseKey(key);
  156. return 3;
  157. }
  158. /* Close registry */
  159. RegCloseKey(key);
  160. return 0;
  161. }
  162. int get_environment(TCHAR *service_name, HKEY key, TCHAR *value, TCHAR **env, unsigned long *envlen) {
  163. unsigned long type = REG_MULTI_SZ;
  164. /* Dummy test to find buffer size */
  165. unsigned long ret = RegQueryValueEx(key, value, 0, &type, NULL, envlen);
  166. if (ret != ERROR_SUCCESS) {
  167. *env = 0;
  168. *envlen = 0;
  169. /* The service probably doesn't have any environment configured */
  170. if (ret == ERROR_FILE_NOT_FOUND) return 0;
  171. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  172. return 1;
  173. }
  174. if (type != REG_MULTI_SZ) {
  175. *env = 0;
  176. *envlen = 0;
  177. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_INVALID_ENVIRONMENT_STRING_TYPE, value, service_name, 0);
  178. return 2;
  179. }
  180. /* Probably not possible */
  181. if (! *envlen) return 0;
  182. /* Previously initialised? */
  183. if (*env) HeapFree(GetProcessHeap(), 0, *env);
  184. *env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, *envlen);
  185. if (! *env) {
  186. *envlen = 0;
  187. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_environment()"), 0);
  188. return 3;
  189. }
  190. /* Actually get the strings */
  191. ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) *env, envlen);
  192. if (ret != ERROR_SUCCESS) {
  193. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  194. HeapFree(GetProcessHeap(), 0, *env);
  195. *env = 0;
  196. *envlen = 0;
  197. return 4;
  198. }
  199. return 0;
  200. }
  201. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool expand, bool sanitise, bool must_exist) {
  202. TCHAR *buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, datalen);
  203. if (! buffer) {
  204. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_string()"), 0);
  205. return 1;
  206. }
  207. ZeroMemory(data, datalen);
  208. unsigned long type = REG_EXPAND_SZ;
  209. unsigned long buflen = datalen;
  210. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  211. if (ret != ERROR_SUCCESS) {
  212. unsigned long error = GetLastError();
  213. HeapFree(GetProcessHeap(), 0, buffer);
  214. if (ret == ERROR_FILE_NOT_FOUND) {
  215. if (! must_exist) return 0;
  216. }
  217. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(error), 0);
  218. return 2;
  219. }
  220. /* Paths aren't allowed to contain quotes. */
  221. if (sanitise) PathUnquoteSpaces(buffer);
  222. /* Do we want to expand the string? */
  223. if (! expand) {
  224. if (type == REG_EXPAND_SZ) type = REG_SZ;
  225. }
  226. /* Technically we shouldn't expand environment strings from REG_SZ values */
  227. if (type != REG_EXPAND_SZ) {
  228. memmove(data, buffer, buflen);
  229. HeapFree(GetProcessHeap(), 0, buffer);
  230. return 0;
  231. }
  232. ret = ExpandEnvironmentStrings((TCHAR *) buffer, data, datalen);
  233. if (! ret || ret > datalen) {
  234. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, buffer, error_string(GetLastError()), 0);
  235. HeapFree(GetProcessHeap(), 0, buffer);
  236. return 3;
  237. }
  238. HeapFree(GetProcessHeap(), 0, buffer);
  239. return 0;
  240. }
  241. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  242. return get_string(key, value, data, datalen, false, sanitise, true);
  243. }
  244. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise, bool must_exist) {
  245. return get_string(key, value, data, datalen, true, sanitise, must_exist);
  246. }
  247. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  248. return expand_parameter(key, value, data, datalen, sanitise, true);
  249. }
  250. /*
  251. Sets a string in the registry.
  252. Returns: 0 if it was set.
  253. 1 on error.
  254. */
  255. int set_string(HKEY key, TCHAR *value, TCHAR *string, bool expand) {
  256. unsigned long type = expand ? REG_EXPAND_SZ : REG_SZ;
  257. if (RegSetValueEx(key, value, 0, type, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) == ERROR_SUCCESS) return 0;
  258. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  259. return 1;
  260. }
  261. int set_string(HKEY key, TCHAR *value, TCHAR *string) {
  262. return set_string(key, value, string, false);
  263. return 1;
  264. }
  265. int set_expand_string(HKEY key, TCHAR *value, TCHAR *string) {
  266. return set_string(key, value, string, true);
  267. return 1;
  268. }
  269. /*
  270. Set an unsigned long in the registry.
  271. Returns: 0 if it was set.
  272. 1 on error.
  273. */
  274. int set_number(HKEY key, TCHAR *value, unsigned long number) {
  275. if (RegSetValueEx(key, value, 0, REG_DWORD, (const unsigned char *) &number, sizeof(number)) == ERROR_SUCCESS) return 0;
  276. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  277. return 1;
  278. }
  279. /*
  280. Query an unsigned long from the registry.
  281. Returns: 1 if a number was retrieved.
  282. 0 if none was found and must_exist is false.
  283. -1 if none was found and must_exist is true.
  284. -2 otherwise.
  285. */
  286. int get_number(HKEY key, TCHAR *value, unsigned long *number, bool must_exist) {
  287. unsigned long type = REG_DWORD;
  288. unsigned long number_len = sizeof(unsigned long);
  289. int ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) number, &number_len);
  290. if (ret == ERROR_SUCCESS) return 1;
  291. if (ret == ERROR_FILE_NOT_FOUND) {
  292. if (! must_exist) return 0;
  293. }
  294. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  295. if (ret == ERROR_FILE_NOT_FOUND) return -1;
  296. return -2;
  297. }
  298. int get_number(HKEY key, TCHAR *value, unsigned long *number) {
  299. return get_number(key, value, number, true);
  300. }
  301. /* Replace NULL with CRLF. Leave NULL NULL as the end marker. */
  302. int format_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **formatted, unsigned long *newlen) {
  303. unsigned long i, j;
  304. *newlen = dnlen;
  305. if (! *newlen) {
  306. *formatted = 0;
  307. return 0;
  308. }
  309. for (i = 0; i < dnlen; i++) if (! dn[i] && dn[i + 1]) ++*newlen;
  310. *formatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  311. if (! *formatted) {
  312. *newlen = 0;
  313. return 1;
  314. }
  315. for (i = 0, j = 0; i < dnlen; i++) {
  316. (*formatted)[j] = dn[i];
  317. if (! dn[i]) {
  318. if (dn[i + 1]) {
  319. (*formatted)[j] = _T('\r');
  320. (*formatted)[++j] = _T('\n');
  321. }
  322. }
  323. j++;
  324. }
  325. return 0;
  326. }
  327. /* Strip CR and replace LF with NULL. */
  328. int unformat_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **unformatted, unsigned long *newlen) {
  329. unsigned long i, j;
  330. *newlen = 0;
  331. if (! dnlen) {
  332. *unformatted = 0;
  333. return 0;
  334. }
  335. for (i = 0; i < dnlen; i++) if (dn[i] != _T('\r')) ++*newlen;
  336. /* Skip blank lines. */
  337. for (i = 0; i < dnlen; i++) {
  338. if (dn[i] == _T('\r') && dn[i + 1] == _T('\n')) {
  339. /* This is the last CRLF. */
  340. if (i >= dnlen - 2) break;
  341. /*
  342. Strip at the start of the block or if the next characters are
  343. CRLF too.
  344. */
  345. if (! i || (dn[i + 2] == _T('\r') && dn[i + 3] == _T('\n'))) {
  346. for (j = i + 2; j < dnlen; j++) dn[j - 2] = dn[j];
  347. dn[dnlen--] = _T('\0');
  348. dn[dnlen--] = _T('\0');
  349. i--;
  350. --*newlen;
  351. }
  352. }
  353. }
  354. /* Must end with two NULLs. */
  355. *newlen += 2;
  356. *unformatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  357. if (! *unformatted) return 1;
  358. for (i = 0, j = 0; i < dnlen; i++) {
  359. if (dn[i] == _T('\r')) continue;
  360. if (dn[i] == _T('\n')) (*unformatted)[j] = _T('\0');
  361. else (*unformatted)[j] = dn[i];
  362. j++;
  363. }
  364. return 0;
  365. }
  366. void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned long *buffer, unsigned long default_value, unsigned long event) {
  367. unsigned long type = REG_DWORD;
  368. unsigned long buflen = sizeof(unsigned long);
  369. bool ok = false;
  370. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  371. if (ret != ERROR_SUCCESS) {
  372. if (ret != ERROR_FILE_NOT_FOUND) {
  373. if (type != REG_DWORD) {
  374. TCHAR milliseconds[16];
  375. _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), default_value);
  376. log_event(EVENTLOG_WARNING_TYPE, event, service_name, value, milliseconds, 0);
  377. }
  378. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  379. }
  380. }
  381. else ok = true;
  382. if (! ok) *buffer = default_value;
  383. }
  384. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {
  385. /* Get registry */
  386. TCHAR registry[KEY_LENGTH];
  387. HKEY key;
  388. int ret;
  389. if (sub) ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, sub);
  390. else ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service_name);
  391. if (ret < 0) {
  392. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("open_registry()"), 0);
  393. return 0;
  394. }
  395. if (sam & KEY_WRITE) {
  396. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {
  397. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  398. return 0;
  399. }
  400. }
  401. else {
  402. if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key) != ERROR_SUCCESS) {
  403. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  404. return 0;
  405. }
  406. }
  407. return key;
  408. }
  409. HKEY open_registry(const TCHAR *service_name, REGSAM sam) {
  410. return open_registry(service_name, 0, sam);
  411. }
  412. int get_io_parameters(nssm_service_t *service, HKEY key) {
  413. /* stdin */
  414. 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)) {
  415. service->stdin_sharing = service->stdin_disposition = service->stdin_flags = 0;
  416. ZeroMemory(service->stdin_path, _countof(service->stdin_path) * sizeof(TCHAR));
  417. return 1;
  418. }
  419. /* stdout */
  420. 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)) {
  421. service->stdout_sharing = service->stdout_disposition = service->stdout_flags = 0;
  422. ZeroMemory(service->stdout_path, _countof(service->stdout_path) * sizeof(TCHAR));
  423. return 2;
  424. }
  425. /* stderr */
  426. 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)) {
  427. service->stderr_sharing = service->stderr_disposition = service->stderr_flags = 0;
  428. ZeroMemory(service->stderr_path, _countof(service->stderr_path) * sizeof(TCHAR));
  429. return 3;
  430. }
  431. return 0;
  432. }
  433. int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
  434. unsigned long ret;
  435. /* Try to open the registry */
  436. HKEY key = open_registry(service->name, KEY_READ);
  437. if (! key) return 1;
  438. /* Don't expand parameters when retrieving for the GUI. */
  439. bool expand = si ? true : false;
  440. /* Try to get executable file - MUST succeed */
  441. if (get_string(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), expand, false, true)) {
  442. RegCloseKey(key);
  443. return 3;
  444. }
  445. /* Try to get flags - may fail and we don't care */
  446. if (get_string(key, NSSM_REG_FLAGS, service->flags, sizeof(service->flags), expand, false, true)) {
  447. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_FLAGS, NSSM_REG_FLAGS, service->name, service->exe, 0);
  448. ZeroMemory(service->flags, sizeof(service->flags));
  449. }
  450. /* Try to get startup directory - may fail and we fall back to a default */
  451. if (get_string(key, NSSM_REG_DIR, service->dir, sizeof(service->dir), expand, true, true) || ! service->dir[0]) {
  452. _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);
  453. strip_basename(service->dir);
  454. if (service->dir[0] == _T('\0')) {
  455. /* Help! */
  456. ret = GetWindowsDirectory(service->dir, sizeof(service->dir));
  457. if (! ret || ret > sizeof(service->dir)) {
  458. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_NO_DIR_AND_NO_FALLBACK, NSSM_REG_DIR, service->name, 0);
  459. RegCloseKey(key);
  460. return 4;
  461. }
  462. }
  463. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_DIR, NSSM_REG_DIR, service->name, service->dir, 0);
  464. }
  465. /* Try to get processor affinity - may fail. */
  466. TCHAR buffer[512];
  467. if (get_string(key, NSSM_REG_AFFINITY, buffer, sizeof(buffer), false, false, false) || ! buffer[0]) service->affinity = 0LL;
  468. else if (affinity_string_to_mask(buffer, &service->affinity)) {
  469. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_AFFINITY_MASK, service->name, buffer);
  470. service->affinity = 0LL;
  471. }
  472. else {
  473. DWORD_PTR affinity, system_affinity;
  474. if (GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) {
  475. _int64 effective_affinity = service->affinity & system_affinity;
  476. if (effective_affinity != service->affinity) {
  477. TCHAR *system = 0;
  478. if (! affinity_mask_to_string(system_affinity, &system)) {
  479. TCHAR *effective = 0;
  480. if (! affinity_mask_to_string(effective_affinity, &effective)) {
  481. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_EFFECTIVE_AFFINITY_MASK, service->name, buffer, system, effective, 0);
  482. }
  483. HeapFree(GetProcessHeap(), 0, effective);
  484. }
  485. HeapFree(GetProcessHeap(), 0, system);
  486. }
  487. }
  488. }
  489. /* Try to get environment variables - may fail */
  490. get_environment(service->name, key, NSSM_REG_ENV, &service->env, &service->envlen);
  491. /* Environment variables to add to existing rather than replace - may fail. */
  492. get_environment(service->name, key, NSSM_REG_ENV_EXTRA, &service->env_extra, &service->env_extralen);
  493. /* Try to get priority - may fail. */
  494. unsigned long priority;
  495. if (get_number(key, NSSM_REG_PRIORITY, &priority, false) == 1) {
  496. if (priority == (priority & priority_mask())) service->priority = priority;
  497. else log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_PRIORITY, service->name, NSSM_REG_PRIORITY, 0);
  498. }
  499. /* Try to get file rotation settings - may fail. */
  500. unsigned long rotate_files;
  501. if (get_number(key, NSSM_REG_ROTATE, &rotate_files, false) == 1) {
  502. if (rotate_files) service->rotate_files = true;
  503. else service->rotate_files = false;
  504. }
  505. else service->rotate_files = false;
  506. if (get_number(key, NSSM_REG_ROTATE_ONLINE, &rotate_files, false) == 1) {
  507. if (rotate_files) service->rotate_stdout_online = service->rotate_stderr_online = true;
  508. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  509. }
  510. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  511. if (get_number(key, NSSM_REG_ROTATE_SECONDS, &service->rotate_seconds, false) != 1) service->rotate_seconds = 0;
  512. if (get_number(key, NSSM_REG_ROTATE_BYTES_LOW, &service->rotate_bytes_low, false) != 1) service->rotate_bytes_low = 0;
  513. if (get_number(key, NSSM_REG_ROTATE_BYTES_HIGH, &service->rotate_bytes_high, false) != 1) service->rotate_bytes_high = 0;
  514. /* Try to get force new console setting - may fail. */
  515. if (get_number(key, NSSM_REG_NO_CONSOLE, &service->no_console, false) != 1) service->no_console = 0;
  516. /* Change to startup directory in case stdout/stderr are relative paths. */
  517. TCHAR cwd[PATH_LENGTH];
  518. GetCurrentDirectory(_countof(cwd), cwd);
  519. SetCurrentDirectory(service->dir);
  520. /* Try to get stdout and stderr */
  521. if (get_io_parameters(service, key)) {
  522. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_OUTPUT_HANDLES_FAILED, service->name, 0);
  523. RegCloseKey(key);
  524. SetCurrentDirectory(cwd);
  525. return 5;
  526. }
  527. /* Change back in case the startup directory needs to be deleted. */
  528. SetCurrentDirectory(cwd);
  529. /* Try to get mandatory restart delay */
  530. override_milliseconds(service->name, key, NSSM_REG_RESTART_DELAY, &service->restart_delay, 0, NSSM_EVENT_BOGUS_RESTART_DELAY);
  531. /* Try to get throttle restart delay */
  532. override_milliseconds(service->name, key, NSSM_REG_THROTTLE, &service->throttle_delay, NSSM_RESET_THROTTLE_RESTART, NSSM_EVENT_BOGUS_THROTTLE);
  533. /* Try to get service stop flags. */
  534. unsigned long type = REG_DWORD;
  535. unsigned long stop_method_skip;
  536. unsigned long buflen = sizeof(stop_method_skip);
  537. bool stop_ok = false;
  538. ret = RegQueryValueEx(key, NSSM_REG_STOP_METHOD_SKIP, 0, &type, (unsigned char *) &stop_method_skip, &buflen);
  539. if (ret != ERROR_SUCCESS) {
  540. if (ret != ERROR_FILE_NOT_FOUND) {
  541. if (type != REG_DWORD) {
  542. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_STOP_METHOD_SKIP, service->name, NSSM_REG_STOP_METHOD_SKIP, NSSM, 0);
  543. }
  544. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, NSSM_REG_STOP_METHOD_SKIP, error_string(GetLastError()), 0);
  545. }
  546. }
  547. else stop_ok = true;
  548. /* Try all methods except those requested to be skipped. */
  549. service->stop_method = ~0;
  550. if (stop_ok) service->stop_method &= ~stop_method_skip;
  551. /* Try to get kill delays - may fail. */
  552. 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);
  553. 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);
  554. 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);
  555. /* Try to get process tree settings - may fail. */
  556. unsigned long kill_process_tree;
  557. if (get_number(key, NSSM_REG_KILL_PROCESS_TREE, &kill_process_tree, false) == 1) {
  558. if (kill_process_tree) service->kill_process_tree = true;
  559. else service->kill_process_tree = false;
  560. }
  561. else service->kill_process_tree = true;
  562. /* Try to get default exit action. */
  563. bool default_action;
  564. service->default_exit_action = NSSM_EXIT_RESTART;
  565. TCHAR action_string[ACTION_LEN];
  566. if (! get_exit_action(service->name, 0, action_string, &default_action)) {
  567. for (int i = 0; exit_action_strings[i]; i++) {
  568. if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
  569. service->default_exit_action = i;
  570. break;
  571. }
  572. }
  573. }
  574. /* Close registry */
  575. RegCloseKey(key);
  576. return 0;
  577. }
  578. /*
  579. Sets the string for the exit action corresponding to the exit code.
  580. ret is a pointer to an unsigned long containing the exit code.
  581. If ret is NULL, we retrieve the default exit action unconditionally.
  582. action is a buffer which receives the string.
  583. default_action is a pointer to a bool which is set to false if there
  584. was an explicit string for the given exit code, or true if we are
  585. returning the default action.
  586. Returns: 0 on success.
  587. 1 on error.
  588. */
  589. int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {
  590. /* Are we returning the default action or a status-specific one? */
  591. *default_action = ! ret;
  592. /* Try to open the registry */
  593. HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
  594. if (! key) return 1;
  595. unsigned long type = REG_SZ;
  596. unsigned long action_len = ACTION_LEN;
  597. TCHAR code[16];
  598. if (! ret) code[0] = _T('\0');
  599. else if (_sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), *ret) < 0) {
  600. RegCloseKey(key);
  601. return get_exit_action(service_name, 0, action, default_action);
  602. }
  603. if (RegQueryValueEx(key, code, 0, &type, (unsigned char *) action, &action_len) != ERROR_SUCCESS) {
  604. RegCloseKey(key);
  605. /* Try again with * as the key if an exit code was defined */
  606. if (ret) return get_exit_action(service_name, 0, action, default_action);
  607. return 0;
  608. }
  609. /* Close registry */
  610. RegCloseKey(key);
  611. return 0;
  612. }