registry.cpp 33 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. if (service->stdout_copy_and_truncate) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_COPY_AND_TRUNCATE, 1);
  94. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_COPY_AND_TRUNCATE);
  95. }
  96. if (service->stderr_path[0] || editing) {
  97. if (service->stderr_path[0]) set_expand_string(key, NSSM_REG_STDERR, service->stderr_path);
  98. else if (editing) RegDeleteValue(key, NSSM_REG_STDERR);
  99. if (service->stderr_sharing != NSSM_STDERR_SHARING) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING, service->stderr_sharing);
  100. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING);
  101. if (service->stderr_disposition != NSSM_STDERR_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION, service->stderr_disposition);
  102. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION);
  103. if (service->stderr_flags != NSSM_STDERR_FLAGS) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS, service->stderr_flags);
  104. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS);
  105. if (service->stderr_copy_and_truncate) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_COPY_AND_TRUNCATE, 1);
  106. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_COPY_AND_TRUNCATE);
  107. }
  108. if (service->rotate_files) set_number(key, NSSM_REG_ROTATE, 1);
  109. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE);
  110. if (service->rotate_stdout_online) set_number(key, NSSM_REG_ROTATE_ONLINE, 1);
  111. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_ONLINE);
  112. if (service->rotate_seconds) set_number(key, NSSM_REG_ROTATE_SECONDS, service->rotate_seconds);
  113. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_SECONDS);
  114. if (service->rotate_bytes_low) set_number(key, NSSM_REG_ROTATE_BYTES_LOW, service->rotate_bytes_low);
  115. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_LOW);
  116. if (service->rotate_bytes_high) set_number(key, NSSM_REG_ROTATE_BYTES_HIGH, service->rotate_bytes_high);
  117. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_HIGH);
  118. if (service->rotate_delay != NSSM_ROTATE_DELAY) set_number(key, NSSM_REG_ROTATE_DELAY, service->rotate_delay);
  119. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_DELAY);
  120. if (service->no_console) set_number(key, NSSM_REG_NO_CONSOLE, 1);
  121. else if (editing) RegDeleteValue(key, NSSM_REG_NO_CONSOLE);
  122. /* Environment */
  123. if (service->env) {
  124. if (RegSetValueEx(key, NSSM_REG_ENV, 0, REG_MULTI_SZ, (const unsigned char *) service->env, (unsigned long) service->envlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  125. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
  126. }
  127. }
  128. else if (editing) RegDeleteValue(key, NSSM_REG_ENV);
  129. if (service->env_extra) {
  130. 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) {
  131. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV_EXTRA, error_string(GetLastError()), 0);
  132. }
  133. }
  134. else if (editing) RegDeleteValue(key, NSSM_REG_ENV_EXTRA);
  135. /* Close registry. */
  136. RegCloseKey(key);
  137. return 0;
  138. }
  139. int create_exit_action(TCHAR *service_name, const TCHAR *action_string, bool editing) {
  140. /* Get registry */
  141. TCHAR registry[KEY_LENGTH];
  142. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, NSSM_REG_EXIT) < 0) {
  143. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("create_exit_action()"), 0);
  144. return 1;
  145. }
  146. /* Try to open the registry */
  147. HKEY key;
  148. unsigned long disposition;
  149. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
  150. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  151. return 2;
  152. }
  153. /* Do nothing if the key already existed */
  154. if (disposition == REG_OPENED_EXISTING_KEY && ! editing) {
  155. RegCloseKey(key);
  156. return 0;
  157. }
  158. /* Create the default value */
  159. if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  160. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, error_string(GetLastError()), 0);
  161. RegCloseKey(key);
  162. return 3;
  163. }
  164. /* Close registry */
  165. RegCloseKey(key);
  166. return 0;
  167. }
  168. int get_environment(TCHAR *service_name, HKEY key, TCHAR *value, TCHAR **env, unsigned long *envlen) {
  169. unsigned long type = REG_MULTI_SZ;
  170. /* Dummy test to find buffer size */
  171. unsigned long ret = RegQueryValueEx(key, value, 0, &type, NULL, envlen);
  172. if (ret != ERROR_SUCCESS) {
  173. *env = 0;
  174. *envlen = 0;
  175. /* The service probably doesn't have any environment configured */
  176. if (ret == ERROR_FILE_NOT_FOUND) return 0;
  177. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  178. return 1;
  179. }
  180. if (type != REG_MULTI_SZ) {
  181. *env = 0;
  182. *envlen = 0;
  183. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_INVALID_ENVIRONMENT_STRING_TYPE, value, service_name, 0);
  184. return 2;
  185. }
  186. /* Probably not possible */
  187. if (! *envlen) return 0;
  188. /* Previously initialised? */
  189. if (*env) HeapFree(GetProcessHeap(), 0, *env);
  190. *env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, *envlen);
  191. if (! *env) {
  192. *envlen = 0;
  193. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_environment()"), 0);
  194. return 3;
  195. }
  196. /* Actually get the strings */
  197. ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) *env, envlen);
  198. if (ret != ERROR_SUCCESS) {
  199. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  200. HeapFree(GetProcessHeap(), 0, *env);
  201. *env = 0;
  202. *envlen = 0;
  203. return 4;
  204. }
  205. return 0;
  206. }
  207. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool expand, bool sanitise, bool must_exist) {
  208. TCHAR *buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, datalen);
  209. if (! buffer) {
  210. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_string()"), 0);
  211. return 1;
  212. }
  213. ZeroMemory(data, datalen);
  214. unsigned long type = REG_EXPAND_SZ;
  215. unsigned long buflen = datalen;
  216. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  217. if (ret != ERROR_SUCCESS) {
  218. unsigned long error = GetLastError();
  219. HeapFree(GetProcessHeap(), 0, buffer);
  220. if (ret == ERROR_FILE_NOT_FOUND) {
  221. if (! must_exist) return 0;
  222. }
  223. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(error), 0);
  224. return 2;
  225. }
  226. /* Paths aren't allowed to contain quotes. */
  227. if (sanitise) PathUnquoteSpaces(buffer);
  228. /* Do we want to expand the string? */
  229. if (! expand) {
  230. if (type == REG_EXPAND_SZ) type = REG_SZ;
  231. }
  232. /* Technically we shouldn't expand environment strings from REG_SZ values */
  233. if (type != REG_EXPAND_SZ) {
  234. memmove(data, buffer, buflen);
  235. HeapFree(GetProcessHeap(), 0, buffer);
  236. return 0;
  237. }
  238. ret = ExpandEnvironmentStrings((TCHAR *) buffer, data, datalen);
  239. if (! ret || ret > datalen) {
  240. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, buffer, error_string(GetLastError()), 0);
  241. HeapFree(GetProcessHeap(), 0, buffer);
  242. return 3;
  243. }
  244. HeapFree(GetProcessHeap(), 0, buffer);
  245. return 0;
  246. }
  247. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  248. return get_string(key, value, data, datalen, false, sanitise, true);
  249. }
  250. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise, bool must_exist) {
  251. return get_string(key, value, data, datalen, true, sanitise, must_exist);
  252. }
  253. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  254. return expand_parameter(key, value, data, datalen, sanitise, true);
  255. }
  256. /*
  257. Sets a string in the registry.
  258. Returns: 0 if it was set.
  259. 1 on error.
  260. */
  261. int set_string(HKEY key, TCHAR *value, TCHAR *string, bool expand) {
  262. unsigned long type = expand ? REG_EXPAND_SZ : REG_SZ;
  263. if (RegSetValueEx(key, value, 0, type, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) == ERROR_SUCCESS) return 0;
  264. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  265. return 1;
  266. }
  267. int set_string(HKEY key, TCHAR *value, TCHAR *string) {
  268. return set_string(key, value, string, false);
  269. return 1;
  270. }
  271. int set_expand_string(HKEY key, TCHAR *value, TCHAR *string) {
  272. return set_string(key, value, string, true);
  273. return 1;
  274. }
  275. /*
  276. Set an unsigned long in the registry.
  277. Returns: 0 if it was set.
  278. 1 on error.
  279. */
  280. int set_number(HKEY key, TCHAR *value, unsigned long number) {
  281. if (RegSetValueEx(key, value, 0, REG_DWORD, (const unsigned char *) &number, sizeof(number)) == ERROR_SUCCESS) return 0;
  282. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  283. return 1;
  284. }
  285. /*
  286. Query an unsigned long from the registry.
  287. Returns: 1 if a number was retrieved.
  288. 0 if none was found and must_exist is false.
  289. -1 if none was found and must_exist is true.
  290. -2 otherwise.
  291. */
  292. int get_number(HKEY key, TCHAR *value, unsigned long *number, bool must_exist) {
  293. unsigned long type = REG_DWORD;
  294. unsigned long number_len = sizeof(unsigned long);
  295. int ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) number, &number_len);
  296. if (ret == ERROR_SUCCESS) return 1;
  297. if (ret == ERROR_FILE_NOT_FOUND) {
  298. if (! must_exist) return 0;
  299. }
  300. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  301. if (ret == ERROR_FILE_NOT_FOUND) return -1;
  302. return -2;
  303. }
  304. int get_number(HKEY key, TCHAR *value, unsigned long *number) {
  305. return get_number(key, value, number, true);
  306. }
  307. /* Replace NULL with CRLF. Leave NULL NULL as the end marker. */
  308. int format_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **formatted, unsigned long *newlen) {
  309. unsigned long i, j;
  310. *newlen = dnlen;
  311. if (! *newlen) {
  312. *formatted = 0;
  313. return 0;
  314. }
  315. for (i = 0; i < dnlen; i++) if (! dn[i] && dn[i + 1]) ++*newlen;
  316. *formatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  317. if (! *formatted) {
  318. *newlen = 0;
  319. return 1;
  320. }
  321. for (i = 0, j = 0; i < dnlen; i++) {
  322. (*formatted)[j] = dn[i];
  323. if (! dn[i]) {
  324. if (dn[i + 1]) {
  325. (*formatted)[j] = _T('\r');
  326. (*formatted)[++j] = _T('\n');
  327. }
  328. }
  329. j++;
  330. }
  331. return 0;
  332. }
  333. /* Strip CR and replace LF with NULL. */
  334. int unformat_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **unformatted, unsigned long *newlen) {
  335. unsigned long i, j;
  336. *newlen = 0;
  337. if (! dnlen) {
  338. *unformatted = 0;
  339. return 0;
  340. }
  341. for (i = 0; i < dnlen; i++) if (dn[i] != _T('\r')) ++*newlen;
  342. /* Skip blank lines. */
  343. for (i = 0; i < dnlen; i++) {
  344. if (dn[i] == _T('\r') && dn[i + 1] == _T('\n')) {
  345. /* This is the last CRLF. */
  346. if (i >= dnlen - 2) break;
  347. /*
  348. Strip at the start of the block or if the next characters are
  349. CRLF too.
  350. */
  351. if (! i || (dn[i + 2] == _T('\r') && dn[i + 3] == _T('\n'))) {
  352. for (j = i + 2; j < dnlen; j++) dn[j - 2] = dn[j];
  353. dn[dnlen--] = _T('\0');
  354. dn[dnlen--] = _T('\0');
  355. i--;
  356. --*newlen;
  357. }
  358. }
  359. }
  360. /* Must end with two NULLs. */
  361. *newlen += 2;
  362. *unformatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  363. if (! *unformatted) return 1;
  364. for (i = 0, j = 0; i < dnlen; i++) {
  365. if (dn[i] == _T('\r')) continue;
  366. if (dn[i] == _T('\n')) (*unformatted)[j] = _T('\0');
  367. else (*unformatted)[j] = dn[i];
  368. j++;
  369. }
  370. return 0;
  371. }
  372. void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned long *buffer, unsigned long default_value, unsigned long event) {
  373. unsigned long type = REG_DWORD;
  374. unsigned long buflen = sizeof(unsigned long);
  375. bool ok = false;
  376. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  377. if (ret != ERROR_SUCCESS) {
  378. if (ret != ERROR_FILE_NOT_FOUND) {
  379. if (type != REG_DWORD) {
  380. TCHAR milliseconds[16];
  381. _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), default_value);
  382. log_event(EVENTLOG_WARNING_TYPE, event, service_name, value, milliseconds, 0);
  383. }
  384. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  385. }
  386. }
  387. else ok = true;
  388. if (! ok) *buffer = default_value;
  389. }
  390. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam, bool must_exist) {
  391. /* Get registry */
  392. TCHAR registry[KEY_LENGTH];
  393. HKEY key;
  394. int ret;
  395. if (sub) ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, sub);
  396. else ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service_name);
  397. if (ret < 0) {
  398. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("open_registry()"), 0);
  399. return 0;
  400. }
  401. if (sam & KEY_SET_VALUE) {
  402. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {
  403. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  404. return 0;
  405. }
  406. }
  407. else {
  408. long error = RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key);
  409. if (error != ERROR_SUCCESS) {
  410. if (error == ERROR_FILE_NOT_FOUND && ! must_exist) return 0;
  411. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  412. return 0;
  413. }
  414. }
  415. return key;
  416. }
  417. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {
  418. return open_registry(service_name, sub, sam, true);
  419. }
  420. HKEY open_registry(const TCHAR *service_name, REGSAM sam) {
  421. return open_registry(service_name, 0, sam, true);
  422. }
  423. int get_io_parameters(nssm_service_t *service, HKEY key) {
  424. /* stdin */
  425. 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, 0)) {
  426. service->stdin_sharing = service->stdin_disposition = service->stdin_flags = 0;
  427. ZeroMemory(service->stdin_path, _countof(service->stdin_path) * sizeof(TCHAR));
  428. return 1;
  429. }
  430. /* stdout */
  431. 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, &service->stdout_copy_and_truncate)) {
  432. service->stdout_sharing = service->stdout_disposition = service->stdout_flags = 0;
  433. ZeroMemory(service->stdout_path, _countof(service->stdout_path) * sizeof(TCHAR));
  434. return 2;
  435. }
  436. /* stderr */
  437. 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, &service->stderr_copy_and_truncate)) {
  438. service->stderr_sharing = service->stderr_disposition = service->stderr_flags = 0;
  439. ZeroMemory(service->stderr_path, _countof(service->stderr_path) * sizeof(TCHAR));
  440. return 3;
  441. }
  442. return 0;
  443. }
  444. int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
  445. unsigned long ret;
  446. /* Try to open the registry */
  447. HKEY key = open_registry(service->name, KEY_READ);
  448. if (! key) return 1;
  449. /* Don't expand parameters when retrieving for the GUI. */
  450. bool expand = si ? true : false;
  451. /* Try to get executable file - MUST succeed */
  452. if (get_string(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), expand, false, true)) {
  453. RegCloseKey(key);
  454. return 3;
  455. }
  456. /* Try to get flags - may fail and we don't care */
  457. if (get_string(key, NSSM_REG_FLAGS, service->flags, sizeof(service->flags), expand, false, true)) {
  458. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_FLAGS, NSSM_REG_FLAGS, service->name, service->exe, 0);
  459. ZeroMemory(service->flags, sizeof(service->flags));
  460. }
  461. /* Try to get startup directory - may fail and we fall back to a default */
  462. if (get_string(key, NSSM_REG_DIR, service->dir, sizeof(service->dir), expand, true, true) || ! service->dir[0]) {
  463. _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);
  464. strip_basename(service->dir);
  465. if (service->dir[0] == _T('\0')) {
  466. /* Help! */
  467. ret = GetWindowsDirectory(service->dir, sizeof(service->dir));
  468. if (! ret || ret > sizeof(service->dir)) {
  469. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_NO_DIR_AND_NO_FALLBACK, NSSM_REG_DIR, service->name, 0);
  470. RegCloseKey(key);
  471. return 4;
  472. }
  473. }
  474. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_DIR, NSSM_REG_DIR, service->name, service->dir, 0);
  475. }
  476. /* Try to get processor affinity - may fail. */
  477. TCHAR buffer[512];
  478. if (get_string(key, NSSM_REG_AFFINITY, buffer, sizeof(buffer), false, false, false) || ! buffer[0]) service->affinity = 0LL;
  479. else if (affinity_string_to_mask(buffer, &service->affinity)) {
  480. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_AFFINITY_MASK, service->name, buffer);
  481. service->affinity = 0LL;
  482. }
  483. else {
  484. DWORD_PTR affinity, system_affinity;
  485. if (GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) {
  486. _int64 effective_affinity = service->affinity & system_affinity;
  487. if (effective_affinity != service->affinity) {
  488. TCHAR *system = 0;
  489. if (! affinity_mask_to_string(system_affinity, &system)) {
  490. TCHAR *effective = 0;
  491. if (! affinity_mask_to_string(effective_affinity, &effective)) {
  492. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_EFFECTIVE_AFFINITY_MASK, service->name, buffer, system, effective, 0);
  493. }
  494. HeapFree(GetProcessHeap(), 0, effective);
  495. }
  496. HeapFree(GetProcessHeap(), 0, system);
  497. }
  498. }
  499. }
  500. /* Try to get environment variables - may fail */
  501. get_environment(service->name, key, NSSM_REG_ENV, &service->env, &service->envlen);
  502. /* Environment variables to add to existing rather than replace - may fail. */
  503. get_environment(service->name, key, NSSM_REG_ENV_EXTRA, &service->env_extra, &service->env_extralen);
  504. /* Try to get priority - may fail. */
  505. unsigned long priority;
  506. if (get_number(key, NSSM_REG_PRIORITY, &priority, false) == 1) {
  507. if (priority == (priority & priority_mask())) service->priority = priority;
  508. else log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_PRIORITY, service->name, NSSM_REG_PRIORITY, 0);
  509. }
  510. /* Try to get file rotation settings - may fail. */
  511. unsigned long rotate_files;
  512. if (get_number(key, NSSM_REG_ROTATE, &rotate_files, false) == 1) {
  513. if (rotate_files) service->rotate_files = true;
  514. else service->rotate_files = false;
  515. }
  516. else service->rotate_files = false;
  517. if (get_number(key, NSSM_REG_ROTATE_ONLINE, &rotate_files, false) == 1) {
  518. if (rotate_files) service->rotate_stdout_online = service->rotate_stderr_online = true;
  519. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  520. }
  521. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  522. if (get_number(key, NSSM_REG_ROTATE_SECONDS, &service->rotate_seconds, false) != 1) service->rotate_seconds = 0;
  523. if (get_number(key, NSSM_REG_ROTATE_BYTES_LOW, &service->rotate_bytes_low, false) != 1) service->rotate_bytes_low = 0;
  524. if (get_number(key, NSSM_REG_ROTATE_BYTES_HIGH, &service->rotate_bytes_high, false) != 1) service->rotate_bytes_high = 0;
  525. override_milliseconds(service->name, key, NSSM_REG_ROTATE_DELAY, &service->rotate_delay, NSSM_ROTATE_DELAY, NSSM_EVENT_BOGUS_THROTTLE);
  526. /* Try to get force new console setting - may fail. */
  527. if (get_number(key, NSSM_REG_NO_CONSOLE, &service->no_console, false) != 1) service->no_console = 0;
  528. /* Change to startup directory in case stdout/stderr are relative paths. */
  529. TCHAR cwd[PATH_LENGTH];
  530. GetCurrentDirectory(_countof(cwd), cwd);
  531. SetCurrentDirectory(service->dir);
  532. /* Try to get stdout and stderr */
  533. if (get_io_parameters(service, key)) {
  534. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_OUTPUT_HANDLES_FAILED, service->name, 0);
  535. RegCloseKey(key);
  536. SetCurrentDirectory(cwd);
  537. return 5;
  538. }
  539. /* Change back in case the startup directory needs to be deleted. */
  540. SetCurrentDirectory(cwd);
  541. /* Try to get mandatory restart delay */
  542. override_milliseconds(service->name, key, NSSM_REG_RESTART_DELAY, &service->restart_delay, 0, NSSM_EVENT_BOGUS_RESTART_DELAY);
  543. /* Try to get throttle restart delay */
  544. override_milliseconds(service->name, key, NSSM_REG_THROTTLE, &service->throttle_delay, NSSM_RESET_THROTTLE_RESTART, NSSM_EVENT_BOGUS_THROTTLE);
  545. /* Try to get service stop flags. */
  546. unsigned long type = REG_DWORD;
  547. unsigned long stop_method_skip;
  548. unsigned long buflen = sizeof(stop_method_skip);
  549. bool stop_ok = false;
  550. ret = RegQueryValueEx(key, NSSM_REG_STOP_METHOD_SKIP, 0, &type, (unsigned char *) &stop_method_skip, &buflen);
  551. if (ret != ERROR_SUCCESS) {
  552. if (ret != ERROR_FILE_NOT_FOUND) {
  553. if (type != REG_DWORD) {
  554. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_STOP_METHOD_SKIP, service->name, NSSM_REG_STOP_METHOD_SKIP, NSSM, 0);
  555. }
  556. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, NSSM_REG_STOP_METHOD_SKIP, error_string(GetLastError()), 0);
  557. }
  558. }
  559. else stop_ok = true;
  560. /* Try all methods except those requested to be skipped. */
  561. service->stop_method = ~0;
  562. if (stop_ok) service->stop_method &= ~stop_method_skip;
  563. /* Try to get kill delays - may fail. */
  564. 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);
  565. 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);
  566. 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);
  567. /* Try to get process tree settings - may fail. */
  568. unsigned long kill_process_tree;
  569. if (get_number(key, NSSM_REG_KILL_PROCESS_TREE, &kill_process_tree, false) == 1) {
  570. if (kill_process_tree) service->kill_process_tree = true;
  571. else service->kill_process_tree = false;
  572. }
  573. else service->kill_process_tree = true;
  574. /* Try to get default exit action. */
  575. bool default_action;
  576. service->default_exit_action = NSSM_EXIT_RESTART;
  577. TCHAR action_string[ACTION_LEN];
  578. if (! get_exit_action(service->name, 0, action_string, &default_action)) {
  579. for (int i = 0; exit_action_strings[i]; i++) {
  580. if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
  581. service->default_exit_action = i;
  582. break;
  583. }
  584. }
  585. }
  586. /* Close registry */
  587. RegCloseKey(key);
  588. return 0;
  589. }
  590. /*
  591. Sets the string for the exit action corresponding to the exit code.
  592. ret is a pointer to an unsigned long containing the exit code.
  593. If ret is NULL, we retrieve the default exit action unconditionally.
  594. action is a buffer which receives the string.
  595. default_action is a pointer to a bool which is set to false if there
  596. was an explicit string for the given exit code, or true if we are
  597. returning the default action.
  598. Returns: 0 on success.
  599. 1 on error.
  600. */
  601. int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {
  602. /* Are we returning the default action or a status-specific one? */
  603. *default_action = ! ret;
  604. /* Try to open the registry */
  605. HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
  606. if (! key) return 1;
  607. unsigned long type = REG_SZ;
  608. unsigned long action_len = ACTION_LEN;
  609. TCHAR code[16];
  610. if (! ret) code[0] = _T('\0');
  611. else if (_sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), *ret) < 0) {
  612. RegCloseKey(key);
  613. return get_exit_action(service_name, 0, action, default_action);
  614. }
  615. if (RegQueryValueEx(key, code, 0, &type, (unsigned char *) action, &action_len) != ERROR_SUCCESS) {
  616. RegCloseKey(key);
  617. /* Try again with * as the key if an exit code was defined */
  618. if (ret) return get_exit_action(service_name, 0, action, default_action);
  619. return 0;
  620. }
  621. /* Close registry */
  622. RegCloseKey(key);
  623. return 0;
  624. }
  625. int set_hook(const TCHAR *service_name, const TCHAR *hook_event, const TCHAR *hook_action, TCHAR *cmd) {
  626. /* Try to open the registry */
  627. TCHAR registry[KEY_LENGTH];
  628. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("%s\\%s"), NSSM_REG_HOOK, hook_event) < 0) {
  629. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("hook registry"), _T("set_hook()"), 0);
  630. return 1;
  631. }
  632. HKEY key;
  633. long error;
  634. /* Don't create keys needlessly. */
  635. if (! _tcslen(cmd)) {
  636. key = open_registry(service_name, registry, KEY_READ, false);
  637. if (! key) return 0;
  638. error = RegQueryValueEx(key, hook_action, 0, 0, 0, 0);
  639. RegCloseKey(key);
  640. if (error == ERROR_FILE_NOT_FOUND) return 0;
  641. }
  642. key = open_registry(service_name, registry, KEY_WRITE);
  643. if (! key) return 1;
  644. int ret = 1;
  645. if (_tcslen(cmd)) ret = set_string(key, (TCHAR *) hook_action, cmd, true);
  646. else {
  647. error = RegDeleteValue(key, hook_action);
  648. if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) ret = 0;
  649. }
  650. /* Close registry */
  651. RegCloseKey(key);
  652. return ret;
  653. }
  654. int get_hook(const TCHAR *service_name, const TCHAR *hook_event, const TCHAR *hook_action, TCHAR *buffer, unsigned long buflen) {
  655. /* Try to open the registry */
  656. TCHAR registry[KEY_LENGTH];
  657. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("%s\\%s"), NSSM_REG_HOOK, hook_event) < 0) {
  658. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("hook registry"), _T("get_hook()"), 0);
  659. return 1;
  660. }
  661. HKEY key = open_registry(service_name, registry, KEY_READ, false);
  662. if (! key) return 1;
  663. int ret = expand_parameter(key, (TCHAR *) hook_action, buffer, buflen, true, false);
  664. /* Close registry */
  665. RegCloseKey(key);
  666. return ret;
  667. }