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. const TCHAR *path = nssm_imagepath();
  16. /* Try to register the module but don't worry so much on failure */
  17. RegSetValueEx(key, _T("EventMessageFile"), 0, REG_SZ, (const unsigned char *) path, (unsigned long) (_tcslen(path) + 1) * sizeof(TCHAR));
  18. unsigned long types = EVENTLOG_INFORMATION_TYPE | EVENTLOG_WARNING_TYPE | EVENTLOG_ERROR_TYPE;
  19. RegSetValueEx(key, _T("TypesSupported"), 0, REG_DWORD, (const unsigned char *) &types, sizeof(types));
  20. return 0;
  21. }
  22. int create_parameters(nssm_service_t *service, bool editing) {
  23. /* Try to open the registry */
  24. HKEY key = open_registry(service->name, KEY_WRITE);
  25. if (! key) return 1;
  26. /* Try to create the parameters */
  27. if (set_expand_string(key, NSSM_REG_EXE, service->exe)) {
  28. RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
  29. RegCloseKey(key);
  30. return 2;
  31. }
  32. if (set_expand_string(key, NSSM_REG_FLAGS, service->flags)) {
  33. RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
  34. RegCloseKey(key);
  35. return 3;
  36. }
  37. if (set_expand_string(key, NSSM_REG_DIR, service->dir)) {
  38. RegDeleteKey(HKEY_LOCAL_MACHINE, NSSM_REGISTRY);
  39. RegCloseKey(key);
  40. return 4;
  41. }
  42. /* Other non-default parameters. May fail. */
  43. if (service->priority != NORMAL_PRIORITY_CLASS) set_number(key, NSSM_REG_PRIORITY, service->priority);
  44. else if (editing) RegDeleteValue(key, NSSM_REG_PRIORITY);
  45. if (service->affinity) {
  46. TCHAR *string;
  47. if (! affinity_mask_to_string(service->affinity, &string)) {
  48. if (RegSetValueEx(key, NSSM_REG_AFFINITY, 0, REG_SZ, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  49. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_AFFINITY, error_string(GetLastError()), 0);
  50. HeapFree(GetProcessHeap(), 0, string);
  51. return 5;
  52. }
  53. }
  54. if (string) HeapFree(GetProcessHeap(), 0, string);
  55. }
  56. else if (editing) RegDeleteValue(key, NSSM_REG_AFFINITY);
  57. unsigned long stop_method_skip = ~service->stop_method;
  58. if (stop_method_skip) set_number(key, NSSM_REG_STOP_METHOD_SKIP, stop_method_skip);
  59. else if (editing) RegDeleteValue(key, NSSM_REG_STOP_METHOD_SKIP);
  60. if (service->default_exit_action < NSSM_NUM_EXIT_ACTIONS) create_exit_action(service->name, exit_action_strings[service->default_exit_action], editing);
  61. if (service->restart_delay) set_number(key, NSSM_REG_RESTART_DELAY, service->restart_delay);
  62. else if (editing) RegDeleteValue(key, NSSM_REG_RESTART_DELAY);
  63. if (service->throttle_delay != NSSM_RESET_THROTTLE_RESTART) set_number(key, NSSM_REG_THROTTLE, service->throttle_delay);
  64. else if (editing) RegDeleteValue(key, NSSM_REG_THROTTLE);
  65. if (service->kill_console_delay != NSSM_KILL_CONSOLE_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD, service->kill_console_delay);
  66. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD);
  67. if (service->kill_window_delay != NSSM_KILL_WINDOW_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD, service->kill_window_delay);
  68. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD);
  69. if (service->kill_threads_delay != NSSM_KILL_THREADS_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_THREADS_GRACE_PERIOD, service->kill_threads_delay);
  70. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_THREADS_GRACE_PERIOD);
  71. if (! service->kill_process_tree) set_number(key, NSSM_REG_KILL_PROCESS_TREE, 0);
  72. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_PROCESS_TREE);
  73. if (service->stdin_path[0] || editing) {
  74. if (service->stdin_path[0]) set_expand_string(key, NSSM_REG_STDIN, service->stdin_path);
  75. else if (editing) RegDeleteValue(key, NSSM_REG_STDIN);
  76. if (service->stdin_sharing != NSSM_STDIN_SHARING) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING, service->stdin_sharing);
  77. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING);
  78. if (service->stdin_disposition != NSSM_STDIN_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION, service->stdin_disposition);
  79. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION);
  80. if (service->stdin_flags != NSSM_STDIN_FLAGS) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS, service->stdin_flags);
  81. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS);
  82. }
  83. if (service->stdout_path[0] || editing) {
  84. if (service->stdout_path[0]) set_expand_string(key, NSSM_REG_STDOUT, service->stdout_path);
  85. else if (editing) RegDeleteValue(key, NSSM_REG_STDOUT);
  86. if (service->stdout_sharing != NSSM_STDOUT_SHARING) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING, service->stdout_sharing);
  87. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING);
  88. if (service->stdout_disposition != NSSM_STDOUT_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION, service->stdout_disposition);
  89. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION);
  90. if (service->stdout_flags != NSSM_STDOUT_FLAGS) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS, service->stdout_flags);
  91. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS);
  92. if (service->stdout_copy_and_truncate) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_COPY_AND_TRUNCATE, 1);
  93. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_COPY_AND_TRUNCATE);
  94. }
  95. if (service->stderr_path[0] || editing) {
  96. if (service->stderr_path[0]) set_expand_string(key, NSSM_REG_STDERR, service->stderr_path);
  97. else if (editing) RegDeleteValue(key, NSSM_REG_STDERR);
  98. if (service->stderr_sharing != NSSM_STDERR_SHARING) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING, service->stderr_sharing);
  99. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING);
  100. if (service->stderr_disposition != NSSM_STDERR_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION, service->stderr_disposition);
  101. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION);
  102. if (service->stderr_flags != NSSM_STDERR_FLAGS) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS, service->stderr_flags);
  103. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS);
  104. if (service->stderr_copy_and_truncate) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_COPY_AND_TRUNCATE, 1);
  105. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_COPY_AND_TRUNCATE);
  106. }
  107. if (service->rotate_files) set_number(key, NSSM_REG_ROTATE, 1);
  108. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE);
  109. if (service->rotate_stdout_online) set_number(key, NSSM_REG_ROTATE_ONLINE, 1);
  110. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_ONLINE);
  111. if (service->rotate_seconds) set_number(key, NSSM_REG_ROTATE_SECONDS, service->rotate_seconds);
  112. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_SECONDS);
  113. if (service->rotate_bytes_low) set_number(key, NSSM_REG_ROTATE_BYTES_LOW, service->rotate_bytes_low);
  114. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_LOW);
  115. if (service->rotate_bytes_high) set_number(key, NSSM_REG_ROTATE_BYTES_HIGH, service->rotate_bytes_high);
  116. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_HIGH);
  117. if (service->rotate_delay != NSSM_ROTATE_DELAY) set_number(key, NSSM_REG_ROTATE_DELAY, service->rotate_delay);
  118. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_DELAY);
  119. if (service->no_console) set_number(key, NSSM_REG_NO_CONSOLE, 1);
  120. else if (editing) RegDeleteValue(key, NSSM_REG_NO_CONSOLE);
  121. /* Environment */
  122. if (service->env) {
  123. if (RegSetValueEx(key, NSSM_REG_ENV, 0, REG_MULTI_SZ, (const unsigned char *) service->env, (unsigned long) service->envlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  124. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
  125. }
  126. }
  127. else if (editing) RegDeleteValue(key, NSSM_REG_ENV);
  128. if (service->env_extra) {
  129. 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) {
  130. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV_EXTRA, error_string(GetLastError()), 0);
  131. }
  132. }
  133. else if (editing) RegDeleteValue(key, NSSM_REG_ENV_EXTRA);
  134. /* Close registry. */
  135. RegCloseKey(key);
  136. return 0;
  137. }
  138. int create_exit_action(TCHAR *service_name, const TCHAR *action_string, bool editing) {
  139. /* Get registry */
  140. TCHAR registry[KEY_LENGTH];
  141. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, NSSM_REG_EXIT) < 0) {
  142. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("create_exit_action()"), 0);
  143. return 1;
  144. }
  145. /* Try to open the registry */
  146. HKEY key;
  147. unsigned long disposition;
  148. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
  149. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  150. return 2;
  151. }
  152. /* Do nothing if the key already existed */
  153. if (disposition == REG_OPENED_EXISTING_KEY && ! editing) {
  154. RegCloseKey(key);
  155. return 0;
  156. }
  157. /* Create the default value */
  158. if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  159. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, error_string(GetLastError()), 0);
  160. RegCloseKey(key);
  161. return 3;
  162. }
  163. /* Close registry */
  164. RegCloseKey(key);
  165. return 0;
  166. }
  167. int get_environment(TCHAR *service_name, HKEY key, TCHAR *value, TCHAR **env, unsigned long *envlen) {
  168. unsigned long type = REG_MULTI_SZ;
  169. /* Dummy test to find buffer size */
  170. unsigned long ret = RegQueryValueEx(key, value, 0, &type, NULL, envlen);
  171. if (ret != ERROR_SUCCESS) {
  172. *env = 0;
  173. *envlen = 0;
  174. /* The service probably doesn't have any environment configured */
  175. if (ret == ERROR_FILE_NOT_FOUND) return 0;
  176. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  177. return 1;
  178. }
  179. if (type != REG_MULTI_SZ) {
  180. *env = 0;
  181. *envlen = 0;
  182. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_INVALID_ENVIRONMENT_STRING_TYPE, value, service_name, 0);
  183. return 2;
  184. }
  185. /* Probably not possible */
  186. if (! *envlen) return 0;
  187. /* Previously initialised? */
  188. if (*env) HeapFree(GetProcessHeap(), 0, *env);
  189. *env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, *envlen);
  190. if (! *env) {
  191. *envlen = 0;
  192. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_environment()"), 0);
  193. return 3;
  194. }
  195. /* Actually get the strings */
  196. ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) *env, envlen);
  197. if (ret != ERROR_SUCCESS) {
  198. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  199. HeapFree(GetProcessHeap(), 0, *env);
  200. *env = 0;
  201. *envlen = 0;
  202. return 4;
  203. }
  204. return 0;
  205. }
  206. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool expand, bool sanitise, bool must_exist) {
  207. TCHAR *buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, datalen);
  208. if (! buffer) {
  209. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_string()"), 0);
  210. return 1;
  211. }
  212. ZeroMemory(data, datalen);
  213. unsigned long type = REG_EXPAND_SZ;
  214. unsigned long buflen = datalen;
  215. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  216. if (ret != ERROR_SUCCESS) {
  217. unsigned long error = GetLastError();
  218. HeapFree(GetProcessHeap(), 0, buffer);
  219. if (ret == ERROR_FILE_NOT_FOUND) {
  220. if (! must_exist) return 0;
  221. }
  222. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(error), 0);
  223. return 2;
  224. }
  225. /* Paths aren't allowed to contain quotes. */
  226. if (sanitise) PathUnquoteSpaces(buffer);
  227. /* Do we want to expand the string? */
  228. if (! expand) {
  229. if (type == REG_EXPAND_SZ) type = REG_SZ;
  230. }
  231. /* Technically we shouldn't expand environment strings from REG_SZ values */
  232. if (type != REG_EXPAND_SZ) {
  233. memmove(data, buffer, buflen);
  234. HeapFree(GetProcessHeap(), 0, buffer);
  235. return 0;
  236. }
  237. ret = ExpandEnvironmentStrings((TCHAR *) buffer, data, datalen);
  238. if (! ret || ret > datalen) {
  239. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, buffer, error_string(GetLastError()), 0);
  240. HeapFree(GetProcessHeap(), 0, buffer);
  241. return 3;
  242. }
  243. HeapFree(GetProcessHeap(), 0, buffer);
  244. return 0;
  245. }
  246. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  247. return get_string(key, value, data, datalen, false, sanitise, true);
  248. }
  249. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise, bool must_exist) {
  250. return get_string(key, value, data, datalen, true, sanitise, must_exist);
  251. }
  252. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  253. return expand_parameter(key, value, data, datalen, sanitise, true);
  254. }
  255. /*
  256. Sets a string in the registry.
  257. Returns: 0 if it was set.
  258. 1 on error.
  259. */
  260. int set_string(HKEY key, TCHAR *value, TCHAR *string, bool expand) {
  261. unsigned long type = expand ? REG_EXPAND_SZ : REG_SZ;
  262. if (RegSetValueEx(key, value, 0, type, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) == ERROR_SUCCESS) return 0;
  263. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  264. return 1;
  265. }
  266. int set_string(HKEY key, TCHAR *value, TCHAR *string) {
  267. return set_string(key, value, string, false);
  268. return 1;
  269. }
  270. int set_expand_string(HKEY key, TCHAR *value, TCHAR *string) {
  271. return set_string(key, value, string, true);
  272. return 1;
  273. }
  274. /*
  275. Set an unsigned long in the registry.
  276. Returns: 0 if it was set.
  277. 1 on error.
  278. */
  279. int set_number(HKEY key, TCHAR *value, unsigned long number) {
  280. if (RegSetValueEx(key, value, 0, REG_DWORD, (const unsigned char *) &number, sizeof(number)) == ERROR_SUCCESS) return 0;
  281. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  282. return 1;
  283. }
  284. /*
  285. Query an unsigned long from the registry.
  286. Returns: 1 if a number was retrieved.
  287. 0 if none was found and must_exist is false.
  288. -1 if none was found and must_exist is true.
  289. -2 otherwise.
  290. */
  291. int get_number(HKEY key, TCHAR *value, unsigned long *number, bool must_exist) {
  292. unsigned long type = REG_DWORD;
  293. unsigned long number_len = sizeof(unsigned long);
  294. int ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) number, &number_len);
  295. if (ret == ERROR_SUCCESS) return 1;
  296. if (ret == ERROR_FILE_NOT_FOUND) {
  297. if (! must_exist) return 0;
  298. }
  299. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  300. if (ret == ERROR_FILE_NOT_FOUND) return -1;
  301. return -2;
  302. }
  303. int get_number(HKEY key, TCHAR *value, unsigned long *number) {
  304. return get_number(key, value, number, true);
  305. }
  306. /* Replace NULL with CRLF. Leave NULL NULL as the end marker. */
  307. int format_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **formatted, unsigned long *newlen) {
  308. unsigned long i, j;
  309. *newlen = dnlen;
  310. if (! *newlen) {
  311. *formatted = 0;
  312. return 0;
  313. }
  314. for (i = 0; i < dnlen; i++) if (! dn[i] && dn[i + 1]) ++*newlen;
  315. *formatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  316. if (! *formatted) {
  317. *newlen = 0;
  318. return 1;
  319. }
  320. for (i = 0, j = 0; i < dnlen; i++) {
  321. (*formatted)[j] = dn[i];
  322. if (! dn[i]) {
  323. if (dn[i + 1]) {
  324. (*formatted)[j] = _T('\r');
  325. (*formatted)[++j] = _T('\n');
  326. }
  327. }
  328. j++;
  329. }
  330. return 0;
  331. }
  332. /* Strip CR and replace LF with NULL. */
  333. int unformat_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **unformatted, unsigned long *newlen) {
  334. unsigned long i, j;
  335. *newlen = 0;
  336. if (! dnlen) {
  337. *unformatted = 0;
  338. return 0;
  339. }
  340. for (i = 0; i < dnlen; i++) if (dn[i] != _T('\r')) ++*newlen;
  341. /* Skip blank lines. */
  342. for (i = 0; i < dnlen; i++) {
  343. if (dn[i] == _T('\r') && dn[i + 1] == _T('\n')) {
  344. /* This is the last CRLF. */
  345. if (i >= dnlen - 2) break;
  346. /*
  347. Strip at the start of the block or if the next characters are
  348. CRLF too.
  349. */
  350. if (! i || (dn[i + 2] == _T('\r') && dn[i + 3] == _T('\n'))) {
  351. for (j = i + 2; j < dnlen; j++) dn[j - 2] = dn[j];
  352. dn[dnlen--] = _T('\0');
  353. dn[dnlen--] = _T('\0');
  354. i--;
  355. --*newlen;
  356. }
  357. }
  358. }
  359. /* Must end with two NULLs. */
  360. *newlen += 2;
  361. *unformatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  362. if (! *unformatted) return 1;
  363. for (i = 0, j = 0; i < dnlen; i++) {
  364. if (dn[i] == _T('\r')) continue;
  365. if (dn[i] == _T('\n')) (*unformatted)[j] = _T('\0');
  366. else (*unformatted)[j] = dn[i];
  367. j++;
  368. }
  369. return 0;
  370. }
  371. void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned long *buffer, unsigned long default_value, unsigned long event) {
  372. unsigned long type = REG_DWORD;
  373. unsigned long buflen = sizeof(unsigned long);
  374. bool ok = false;
  375. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  376. if (ret != ERROR_SUCCESS) {
  377. if (ret != ERROR_FILE_NOT_FOUND) {
  378. if (type != REG_DWORD) {
  379. TCHAR milliseconds[16];
  380. _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), default_value);
  381. log_event(EVENTLOG_WARNING_TYPE, event, service_name, value, milliseconds, 0);
  382. }
  383. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  384. }
  385. }
  386. else ok = true;
  387. if (! ok) *buffer = default_value;
  388. }
  389. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam, bool must_exist) {
  390. /* Get registry */
  391. TCHAR registry[KEY_LENGTH];
  392. HKEY key;
  393. int ret;
  394. if (sub) ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY _T("\\%s"), service_name, sub);
  395. else ret = _sntprintf_s(registry, _countof(registry), _TRUNCATE, NSSM_REGISTRY, service_name);
  396. if (ret < 0) {
  397. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REGISTRY"), _T("open_registry()"), 0);
  398. return 0;
  399. }
  400. if (sam & KEY_SET_VALUE) {
  401. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, &key, 0) != ERROR_SUCCESS) {
  402. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  403. return 0;
  404. }
  405. }
  406. else {
  407. long error = RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, &key);
  408. if (error != ERROR_SUCCESS) {
  409. if (error == ERROR_FILE_NOT_FOUND && ! must_exist) return 0;
  410. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  411. return 0;
  412. }
  413. }
  414. return key;
  415. }
  416. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {
  417. return open_registry(service_name, sub, sam, true);
  418. }
  419. HKEY open_registry(const TCHAR *service_name, REGSAM sam) {
  420. return open_registry(service_name, 0, sam, true);
  421. }
  422. int get_io_parameters(nssm_service_t *service, HKEY key) {
  423. /* stdin */
  424. 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)) {
  425. service->stdin_sharing = service->stdin_disposition = service->stdin_flags = 0;
  426. ZeroMemory(service->stdin_path, _countof(service->stdin_path) * sizeof(TCHAR));
  427. return 1;
  428. }
  429. /* stdout */
  430. 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)) {
  431. service->stdout_sharing = service->stdout_disposition = service->stdout_flags = 0;
  432. ZeroMemory(service->stdout_path, _countof(service->stdout_path) * sizeof(TCHAR));
  433. return 2;
  434. }
  435. /* stderr */
  436. 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)) {
  437. service->stderr_sharing = service->stderr_disposition = service->stderr_flags = 0;
  438. ZeroMemory(service->stderr_path, _countof(service->stderr_path) * sizeof(TCHAR));
  439. return 3;
  440. }
  441. return 0;
  442. }
  443. int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
  444. unsigned long ret;
  445. /* Try to open the registry */
  446. HKEY key = open_registry(service->name, KEY_READ);
  447. if (! key) return 1;
  448. /* Don't expand parameters when retrieving for the GUI. */
  449. bool expand = si ? true : false;
  450. /* Try to get environment variables - may fail */
  451. get_environment(service->name, key, NSSM_REG_ENV, &service->env, &service->envlen);
  452. /* Environment variables to add to existing rather than replace - may fail. */
  453. get_environment(service->name, key, NSSM_REG_ENV_EXTRA, &service->env_extra, &service->env_extralen);
  454. /* Set environment if we are starting the service. */
  455. if (si) set_service_environment(service);
  456. /* Try to get executable file - MUST succeed */
  457. if (get_string(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), expand, false, true)) {
  458. RegCloseKey(key);
  459. return 3;
  460. }
  461. /* Try to get flags - may fail and we don't care */
  462. if (get_string(key, NSSM_REG_FLAGS, service->flags, sizeof(service->flags), expand, false, true)) {
  463. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_FLAGS, NSSM_REG_FLAGS, service->name, service->exe, 0);
  464. ZeroMemory(service->flags, sizeof(service->flags));
  465. }
  466. /* Try to get startup directory - may fail and we fall back to a default */
  467. if (get_string(key, NSSM_REG_DIR, service->dir, sizeof(service->dir), expand, true, true) || ! service->dir[0]) {
  468. _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);
  469. strip_basename(service->dir);
  470. if (service->dir[0] == _T('\0')) {
  471. /* Help! */
  472. ret = GetWindowsDirectory(service->dir, sizeof(service->dir));
  473. if (! ret || ret > sizeof(service->dir)) {
  474. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_NO_DIR_AND_NO_FALLBACK, NSSM_REG_DIR, service->name, 0);
  475. RegCloseKey(key);
  476. return 4;
  477. }
  478. }
  479. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_DIR, NSSM_REG_DIR, service->name, service->dir, 0);
  480. }
  481. /* Try to get processor affinity - may fail. */
  482. TCHAR buffer[512];
  483. if (get_string(key, NSSM_REG_AFFINITY, buffer, sizeof(buffer), false, false, false) || ! buffer[0]) service->affinity = 0LL;
  484. else if (affinity_string_to_mask(buffer, &service->affinity)) {
  485. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_AFFINITY_MASK, service->name, buffer);
  486. service->affinity = 0LL;
  487. }
  488. else {
  489. DWORD_PTR affinity, system_affinity;
  490. if (GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) {
  491. _int64 effective_affinity = service->affinity & system_affinity;
  492. if (effective_affinity != service->affinity) {
  493. TCHAR *system = 0;
  494. if (! affinity_mask_to_string(system_affinity, &system)) {
  495. TCHAR *effective = 0;
  496. if (! affinity_mask_to_string(effective_affinity, &effective)) {
  497. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_EFFECTIVE_AFFINITY_MASK, service->name, buffer, system, effective, 0);
  498. }
  499. HeapFree(GetProcessHeap(), 0, effective);
  500. }
  501. HeapFree(GetProcessHeap(), 0, system);
  502. }
  503. }
  504. }
  505. /* Try to get priority - may fail. */
  506. unsigned long priority;
  507. if (get_number(key, NSSM_REG_PRIORITY, &priority, false) == 1) {
  508. if (priority == (priority & priority_mask())) service->priority = priority;
  509. else log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_PRIORITY, service->name, NSSM_REG_PRIORITY, 0);
  510. }
  511. /* Try to get file rotation settings - may fail. */
  512. unsigned long rotate_files;
  513. if (get_number(key, NSSM_REG_ROTATE, &rotate_files, false) == 1) {
  514. if (rotate_files) service->rotate_files = true;
  515. else service->rotate_files = false;
  516. }
  517. else service->rotate_files = false;
  518. if (get_number(key, NSSM_REG_ROTATE_ONLINE, &rotate_files, false) == 1) {
  519. if (rotate_files) service->rotate_stdout_online = service->rotate_stderr_online = true;
  520. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  521. }
  522. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  523. if (get_number(key, NSSM_REG_ROTATE_SECONDS, &service->rotate_seconds, false) != 1) service->rotate_seconds = 0;
  524. if (get_number(key, NSSM_REG_ROTATE_BYTES_LOW, &service->rotate_bytes_low, false) != 1) service->rotate_bytes_low = 0;
  525. if (get_number(key, NSSM_REG_ROTATE_BYTES_HIGH, &service->rotate_bytes_high, false) != 1) service->rotate_bytes_high = 0;
  526. override_milliseconds(service->name, key, NSSM_REG_ROTATE_DELAY, &service->rotate_delay, NSSM_ROTATE_DELAY, NSSM_EVENT_BOGUS_THROTTLE);
  527. /* Try to get force new console setting - may fail. */
  528. if (get_number(key, NSSM_REG_NO_CONSOLE, &service->no_console, false) != 1) service->no_console = 0;
  529. /* Change to startup directory in case stdout/stderr are relative paths. */
  530. TCHAR cwd[PATH_LENGTH];
  531. GetCurrentDirectory(_countof(cwd), cwd);
  532. SetCurrentDirectory(service->dir);
  533. /* Try to get stdout and stderr */
  534. if (get_io_parameters(service, key)) {
  535. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_OUTPUT_HANDLES_FAILED, service->name, 0);
  536. RegCloseKey(key);
  537. SetCurrentDirectory(cwd);
  538. return 5;
  539. }
  540. /* Change back in case the startup directory needs to be deleted. */
  541. SetCurrentDirectory(cwd);
  542. /* Try to get mandatory restart delay */
  543. override_milliseconds(service->name, key, NSSM_REG_RESTART_DELAY, &service->restart_delay, 0, NSSM_EVENT_BOGUS_RESTART_DELAY);
  544. /* Try to get throttle restart delay */
  545. override_milliseconds(service->name, key, NSSM_REG_THROTTLE, &service->throttle_delay, NSSM_RESET_THROTTLE_RESTART, NSSM_EVENT_BOGUS_THROTTLE);
  546. /* Try to get service stop flags. */
  547. unsigned long type = REG_DWORD;
  548. unsigned long stop_method_skip;
  549. unsigned long buflen = sizeof(stop_method_skip);
  550. bool stop_ok = false;
  551. ret = RegQueryValueEx(key, NSSM_REG_STOP_METHOD_SKIP, 0, &type, (unsigned char *) &stop_method_skip, &buflen);
  552. if (ret != ERROR_SUCCESS) {
  553. if (ret != ERROR_FILE_NOT_FOUND) {
  554. if (type != REG_DWORD) {
  555. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_STOP_METHOD_SKIP, service->name, NSSM_REG_STOP_METHOD_SKIP, NSSM, 0);
  556. }
  557. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, NSSM_REG_STOP_METHOD_SKIP, error_string(GetLastError()), 0);
  558. }
  559. }
  560. else stop_ok = true;
  561. /* Try all methods except those requested to be skipped. */
  562. service->stop_method = ~0;
  563. if (stop_ok) service->stop_method &= ~stop_method_skip;
  564. /* Try to get kill delays - may fail. */
  565. 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);
  566. 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);
  567. 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);
  568. /* Try to get process tree settings - may fail. */
  569. unsigned long kill_process_tree;
  570. if (get_number(key, NSSM_REG_KILL_PROCESS_TREE, &kill_process_tree, false) == 1) {
  571. if (kill_process_tree) service->kill_process_tree = true;
  572. else service->kill_process_tree = false;
  573. }
  574. else service->kill_process_tree = true;
  575. /* Try to get default exit action. */
  576. bool default_action;
  577. service->default_exit_action = NSSM_EXIT_RESTART;
  578. TCHAR action_string[ACTION_LEN];
  579. if (! get_exit_action(service->name, 0, action_string, &default_action)) {
  580. for (int i = 0; exit_action_strings[i]; i++) {
  581. if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
  582. service->default_exit_action = i;
  583. break;
  584. }
  585. }
  586. }
  587. /* Close registry */
  588. RegCloseKey(key);
  589. return 0;
  590. }
  591. /*
  592. Sets the string for the exit action corresponding to the exit code.
  593. ret is a pointer to an unsigned long containing the exit code.
  594. If ret is NULL, we retrieve the default exit action unconditionally.
  595. action is a buffer which receives the string.
  596. default_action is a pointer to a bool which is set to false if there
  597. was an explicit string for the given exit code, or true if we are
  598. returning the default action.
  599. Returns: 0 on success.
  600. 1 on error.
  601. */
  602. int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {
  603. /* Are we returning the default action or a status-specific one? */
  604. *default_action = ! ret;
  605. /* Try to open the registry */
  606. HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
  607. if (! key) return 1;
  608. unsigned long type = REG_SZ;
  609. unsigned long action_len = ACTION_LEN;
  610. TCHAR code[16];
  611. if (! ret) code[0] = _T('\0');
  612. else if (_sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), *ret) < 0) {
  613. RegCloseKey(key);
  614. return get_exit_action(service_name, 0, action, default_action);
  615. }
  616. if (RegQueryValueEx(key, code, 0, &type, (unsigned char *) action, &action_len) != ERROR_SUCCESS) {
  617. RegCloseKey(key);
  618. /* Try again with * as the key if an exit code was defined */
  619. if (ret) return get_exit_action(service_name, 0, action, default_action);
  620. return 0;
  621. }
  622. /* Close registry */
  623. RegCloseKey(key);
  624. return 0;
  625. }
  626. int set_hook(const TCHAR *service_name, const TCHAR *hook_event, const TCHAR *hook_action, TCHAR *cmd) {
  627. /* Try to open the registry */
  628. TCHAR registry[KEY_LENGTH];
  629. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("%s\\%s"), NSSM_REG_HOOK, hook_event) < 0) {
  630. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("hook registry"), _T("set_hook()"), 0);
  631. return 1;
  632. }
  633. HKEY key;
  634. long error;
  635. /* Don't create keys needlessly. */
  636. if (! _tcslen(cmd)) {
  637. key = open_registry(service_name, registry, KEY_READ, false);
  638. if (! key) return 0;
  639. error = RegQueryValueEx(key, hook_action, 0, 0, 0, 0);
  640. RegCloseKey(key);
  641. if (error == ERROR_FILE_NOT_FOUND) return 0;
  642. }
  643. key = open_registry(service_name, registry, KEY_WRITE);
  644. if (! key) return 1;
  645. int ret = 1;
  646. if (_tcslen(cmd)) ret = set_string(key, (TCHAR *) hook_action, cmd, true);
  647. else {
  648. error = RegDeleteValue(key, hook_action);
  649. if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) ret = 0;
  650. }
  651. /* Close registry */
  652. RegCloseKey(key);
  653. return ret;
  654. }
  655. int get_hook(const TCHAR *service_name, const TCHAR *hook_event, const TCHAR *hook_action, TCHAR *buffer, unsigned long buflen) {
  656. /* Try to open the registry */
  657. TCHAR registry[KEY_LENGTH];
  658. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("%s\\%s"), NSSM_REG_HOOK, hook_event) < 0) {
  659. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("hook registry"), _T("get_hook()"), 0);
  660. return 1;
  661. }
  662. HKEY key = open_registry(service_name, registry, KEY_READ, false);
  663. if (! key) return 1;
  664. int ret = expand_parameter(key, (TCHAR *) hook_action, buffer, buflen, true, false);
  665. /* Close registry */
  666. RegCloseKey(key);
  667. return ret;
  668. }