registry.cpp 35 KB

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  1. #include "nssm.h"
  2. extern const TCHAR *exit_action_strings[];
  3. static int service_registry_path(const TCHAR *service_name, bool parameters, const TCHAR *sub, TCHAR *buffer, unsigned long buflen) {
  4. int ret;
  5. if (parameters) {
  6. if (sub) ret = _sntprintf_s(buffer, buflen, _TRUNCATE, NSSM_REGISTRY _T("\\") NSSM_REG_PARAMETERS _T("\\%s"), service_name, sub);
  7. else ret = _sntprintf_s(buffer, buflen, _TRUNCATE, NSSM_REGISTRY _T("\\") NSSM_REG_PARAMETERS, service_name);
  8. }
  9. else ret = _sntprintf_s(buffer, buflen, _TRUNCATE, NSSM_REGISTRY, service_name);
  10. return ret;
  11. }
  12. static long open_registry_key(const TCHAR *registry, REGSAM sam, HKEY *key, bool must_exist) {
  13. long error;
  14. if (sam & KEY_SET_VALUE) {
  15. error = RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, sam, 0, key, 0);
  16. if (error != ERROR_SUCCESS) {
  17. *key = 0;
  18. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  19. return error;
  20. }
  21. }
  22. else {
  23. error = RegOpenKeyEx(HKEY_LOCAL_MACHINE, registry, 0, sam, key);
  24. if (error != ERROR_SUCCESS) {
  25. *key = 0;
  26. if (error != ERROR_FILE_NOT_FOUND || must_exist) log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  27. }
  28. }
  29. return error;
  30. }
  31. static HKEY open_registry_key(const TCHAR *registry, REGSAM sam, bool must_exist) {
  32. HKEY key;
  33. long error = open_registry_key(registry, sam, &key, must_exist);
  34. return key;
  35. }
  36. int create_messages() {
  37. HKEY key;
  38. TCHAR registry[KEY_LENGTH];
  39. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("SYSTEM\\CurrentControlSet\\Services\\EventLog\\Application\\%s"), NSSM) < 0) {
  40. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("eventlog registry"), _T("create_messages()"), 0);
  41. return 1;
  42. }
  43. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, 0) != ERROR_SUCCESS) {
  44. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  45. return 2;
  46. }
  47. /* Get path of this program */
  48. const TCHAR *path = nssm_unquoted_imagepath();
  49. /* Try to register the module but don't worry so much on failure */
  50. RegSetValueEx(key, _T("EventMessageFile"), 0, REG_SZ, (const unsigned char *) path, (unsigned long) (_tcslen(path) + 1) * sizeof(TCHAR));
  51. unsigned long types = EVENTLOG_INFORMATION_TYPE | EVENTLOG_WARNING_TYPE | EVENTLOG_ERROR_TYPE;
  52. RegSetValueEx(key, _T("TypesSupported"), 0, REG_DWORD, (const unsigned char *) &types, sizeof(types));
  53. return 0;
  54. }
  55. int create_parameters(nssm_service_t *service, bool editing) {
  56. /* Try to open the registry */
  57. HKEY key = open_registry(service->name, KEY_WRITE);
  58. if (! key) return 1;
  59. /* Remember parameters in case we need to delete them. */
  60. TCHAR registry[KEY_LENGTH];
  61. int ret = service_registry_path(service->name, true, 0, registry, _countof(registry));
  62. /* Try to create the parameters */
  63. if (set_expand_string(key, NSSM_REG_EXE, service->exe)) {
  64. if (ret > 0) RegDeleteKey(HKEY_LOCAL_MACHINE, registry);
  65. RegCloseKey(key);
  66. return 2;
  67. }
  68. if (set_expand_string(key, NSSM_REG_FLAGS, service->flags)) {
  69. if (ret > 0) RegDeleteKey(HKEY_LOCAL_MACHINE, registry);
  70. RegCloseKey(key);
  71. return 3;
  72. }
  73. if (set_expand_string(key, NSSM_REG_DIR, service->dir)) {
  74. if (ret > 0) RegDeleteKey(HKEY_LOCAL_MACHINE, registry);
  75. RegCloseKey(key);
  76. return 4;
  77. }
  78. /* Other non-default parameters. May fail. */
  79. if (service->priority != NORMAL_PRIORITY_CLASS) set_number(key, NSSM_REG_PRIORITY, service->priority);
  80. else if (editing) RegDeleteValue(key, NSSM_REG_PRIORITY);
  81. if (service->affinity) {
  82. TCHAR *string;
  83. if (! affinity_mask_to_string(service->affinity, &string)) {
  84. if (RegSetValueEx(key, NSSM_REG_AFFINITY, 0, REG_SZ, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  85. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_AFFINITY, error_string(GetLastError()), 0);
  86. HeapFree(GetProcessHeap(), 0, string);
  87. return 5;
  88. }
  89. }
  90. if (string) HeapFree(GetProcessHeap(), 0, string);
  91. }
  92. else if (editing) RegDeleteValue(key, NSSM_REG_AFFINITY);
  93. unsigned long stop_method_skip = ~service->stop_method;
  94. if (stop_method_skip) set_number(key, NSSM_REG_STOP_METHOD_SKIP, stop_method_skip);
  95. else if (editing) RegDeleteValue(key, NSSM_REG_STOP_METHOD_SKIP);
  96. if (service->default_exit_action < NSSM_NUM_EXIT_ACTIONS) create_exit_action(service->name, exit_action_strings[service->default_exit_action], editing);
  97. if (service->restart_delay) set_number(key, NSSM_REG_RESTART_DELAY, service->restart_delay);
  98. else if (editing) RegDeleteValue(key, NSSM_REG_RESTART_DELAY);
  99. if (service->throttle_delay != NSSM_RESET_THROTTLE_RESTART) set_number(key, NSSM_REG_THROTTLE, service->throttle_delay);
  100. else if (editing) RegDeleteValue(key, NSSM_REG_THROTTLE);
  101. if (service->kill_console_delay != NSSM_KILL_CONSOLE_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD, service->kill_console_delay);
  102. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_CONSOLE_GRACE_PERIOD);
  103. if (service->kill_window_delay != NSSM_KILL_WINDOW_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD, service->kill_window_delay);
  104. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_WINDOW_GRACE_PERIOD);
  105. if (service->kill_threads_delay != NSSM_KILL_THREADS_GRACE_PERIOD) set_number(key, NSSM_REG_KILL_THREADS_GRACE_PERIOD, service->kill_threads_delay);
  106. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_THREADS_GRACE_PERIOD);
  107. if (! service->kill_process_tree) set_number(key, NSSM_REG_KILL_PROCESS_TREE, 0);
  108. else if (editing) RegDeleteValue(key, NSSM_REG_KILL_PROCESS_TREE);
  109. if (service->stdin_path[0] || editing) {
  110. if (service->stdin_path[0]) set_expand_string(key, NSSM_REG_STDIN, service->stdin_path);
  111. else if (editing) RegDeleteValue(key, NSSM_REG_STDIN);
  112. if (service->stdin_sharing != NSSM_STDIN_SHARING) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING, service->stdin_sharing);
  113. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_SHARING);
  114. if (service->stdin_disposition != NSSM_STDIN_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION, service->stdin_disposition);
  115. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_DISPOSITION);
  116. if (service->stdin_flags != NSSM_STDIN_FLAGS) set_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS, service->stdin_flags);
  117. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDIN, NSSM_REG_STDIO_FLAGS);
  118. }
  119. if (service->stdout_path[0] || editing) {
  120. if (service->stdout_path[0]) set_expand_string(key, NSSM_REG_STDOUT, service->stdout_path);
  121. else if (editing) RegDeleteValue(key, NSSM_REG_STDOUT);
  122. if (service->stdout_sharing != NSSM_STDOUT_SHARING) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING, service->stdout_sharing);
  123. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_SHARING);
  124. if (service->stdout_disposition != NSSM_STDOUT_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION, service->stdout_disposition);
  125. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_DISPOSITION);
  126. if (service->stdout_flags != NSSM_STDOUT_FLAGS) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS, service->stdout_flags);
  127. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_FLAGS);
  128. if (service->stdout_copy_and_truncate) set_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_COPY_AND_TRUNCATE, 1);
  129. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDOUT, NSSM_REG_STDIO_COPY_AND_TRUNCATE);
  130. }
  131. if (service->stderr_path[0] || editing) {
  132. if (service->stderr_path[0]) set_expand_string(key, NSSM_REG_STDERR, service->stderr_path);
  133. else if (editing) RegDeleteValue(key, NSSM_REG_STDERR);
  134. if (service->stderr_sharing != NSSM_STDERR_SHARING) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING, service->stderr_sharing);
  135. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_SHARING);
  136. if (service->stderr_disposition != NSSM_STDERR_DISPOSITION) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION, service->stderr_disposition);
  137. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_DISPOSITION);
  138. if (service->stderr_flags != NSSM_STDERR_FLAGS) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS, service->stderr_flags);
  139. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_FLAGS);
  140. if (service->stderr_copy_and_truncate) set_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_COPY_AND_TRUNCATE, 1);
  141. else if (editing) delete_createfile_parameter(key, NSSM_REG_STDERR, NSSM_REG_STDIO_COPY_AND_TRUNCATE);
  142. }
  143. if (service->hook_share_output_handles) set_number(key, NSSM_REG_HOOK_SHARE_OUTPUT_HANDLES, 1);
  144. else if (editing) RegDeleteValue(key, NSSM_REG_HOOK_SHARE_OUTPUT_HANDLES);
  145. if (service->rotate_files) set_number(key, NSSM_REG_ROTATE, 1);
  146. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE);
  147. if (service->rotate_stdout_online) set_number(key, NSSM_REG_ROTATE_ONLINE, 1);
  148. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_ONLINE);
  149. if (service->rotate_seconds) set_number(key, NSSM_REG_ROTATE_SECONDS, service->rotate_seconds);
  150. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_SECONDS);
  151. if (service->rotate_bytes_low) set_number(key, NSSM_REG_ROTATE_BYTES_LOW, service->rotate_bytes_low);
  152. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_LOW);
  153. if (service->rotate_bytes_high) set_number(key, NSSM_REG_ROTATE_BYTES_HIGH, service->rotate_bytes_high);
  154. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_BYTES_HIGH);
  155. if (service->rotate_delay != NSSM_ROTATE_DELAY) set_number(key, NSSM_REG_ROTATE_DELAY, service->rotate_delay);
  156. else if (editing) RegDeleteValue(key, NSSM_REG_ROTATE_DELAY);
  157. if (service->no_console) set_number(key, NSSM_REG_NO_CONSOLE, 1);
  158. else if (editing) RegDeleteValue(key, NSSM_REG_NO_CONSOLE);
  159. /* Environment */
  160. if (service->env) {
  161. if (RegSetValueEx(key, NSSM_REG_ENV, 0, REG_MULTI_SZ, (const unsigned char *) service->env, (unsigned long) service->envlen * sizeof(TCHAR)) != ERROR_SUCCESS) {
  162. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV, error_string(GetLastError()), 0);
  163. }
  164. }
  165. else if (editing) RegDeleteValue(key, NSSM_REG_ENV);
  166. if (service->env_extra) {
  167. 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) {
  168. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_ENV_EXTRA, error_string(GetLastError()), 0);
  169. }
  170. }
  171. else if (editing) RegDeleteValue(key, NSSM_REG_ENV_EXTRA);
  172. /* Close registry. */
  173. RegCloseKey(key);
  174. return 0;
  175. }
  176. int create_exit_action(TCHAR *service_name, const TCHAR *action_string, bool editing) {
  177. /* Get registry */
  178. TCHAR registry[KEY_LENGTH];
  179. if (service_registry_path(service_name, true, NSSM_REG_EXIT, registry, _countof(registry)) < 0) {
  180. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("NSSM_REG_EXIT"), _T("create_exit_action()"), 0);
  181. return 1;
  182. }
  183. /* Try to open the registry */
  184. HKEY key;
  185. unsigned long disposition;
  186. if (RegCreateKeyEx(HKEY_LOCAL_MACHINE, registry, 0, 0, REG_OPTION_NON_VOLATILE, KEY_WRITE, 0, &key, &disposition) != ERROR_SUCCESS) {
  187. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OPENKEY_FAILED, registry, error_string(GetLastError()), 0);
  188. return 2;
  189. }
  190. /* Do nothing if the key already existed */
  191. if (disposition == REG_OPENED_EXISTING_KEY && ! editing) {
  192. RegCloseKey(key);
  193. return 0;
  194. }
  195. /* Create the default value */
  196. if (RegSetValueEx(key, 0, 0, REG_SZ, (const unsigned char *) action_string, (unsigned long) (_tcslen(action_string) + 1) * sizeof(TCHAR)) != ERROR_SUCCESS) {
  197. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, NSSM_REG_EXIT, error_string(GetLastError()), 0);
  198. RegCloseKey(key);
  199. return 3;
  200. }
  201. /* Close registry */
  202. RegCloseKey(key);
  203. return 0;
  204. }
  205. int get_environment(TCHAR *service_name, HKEY key, TCHAR *value, TCHAR **env, unsigned long *envlen) {
  206. unsigned long type = REG_MULTI_SZ;
  207. unsigned long envsize;
  208. *envlen = 0;
  209. /* Dummy test to find buffer size */
  210. unsigned long ret = RegQueryValueEx(key, value, 0, &type, NULL, &envsize);
  211. if (ret != ERROR_SUCCESS) {
  212. *env = 0;
  213. /* The service probably doesn't have any environment configured */
  214. if (ret == ERROR_FILE_NOT_FOUND) return 0;
  215. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(GetLastError()), 0);
  216. return 1;
  217. }
  218. if (type != REG_MULTI_SZ) {
  219. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_INVALID_ENVIRONMENT_STRING_TYPE, value, service_name, 0);
  220. *env = 0;
  221. return 2;
  222. }
  223. /* Probably not possible */
  224. if (! envsize) return 0;
  225. /* Previously initialised? */
  226. if (*env) HeapFree(GetProcessHeap(), 0, *env);
  227. *env = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, envsize);
  228. if (! *env) {
  229. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_environment()"), 0);
  230. return 3;
  231. }
  232. /* Actually get the strings. */
  233. ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) *env, &envsize);
  234. if (ret != ERROR_SUCCESS) {
  235. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(ret), 0);
  236. HeapFree(GetProcessHeap(), 0, *env);
  237. *env = 0;
  238. return 4;
  239. }
  240. /* Value retrieved by RegQueryValueEx() is SIZE not COUNT. */
  241. *envlen = (unsigned long) environment_length(env);
  242. return 0;
  243. }
  244. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool expand, bool sanitise, bool must_exist) {
  245. TCHAR *buffer = (TCHAR *) HeapAlloc(GetProcessHeap(), 0, datalen);
  246. if (! buffer) {
  247. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, value, _T("get_string()"), 0);
  248. return 1;
  249. }
  250. ZeroMemory(data, datalen);
  251. unsigned long type = REG_EXPAND_SZ;
  252. unsigned long buflen = datalen;
  253. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  254. if (ret != ERROR_SUCCESS) {
  255. HeapFree(GetProcessHeap(), 0, buffer);
  256. if (ret == ERROR_FILE_NOT_FOUND) {
  257. if (! must_exist) return 0;
  258. }
  259. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(ret), 0);
  260. return 2;
  261. }
  262. /* Paths aren't allowed to contain quotes. */
  263. if (sanitise) PathUnquoteSpaces(buffer);
  264. /* Do we want to expand the string? */
  265. if (! expand) {
  266. if (type == REG_EXPAND_SZ) type = REG_SZ;
  267. }
  268. /* Technically we shouldn't expand environment strings from REG_SZ values */
  269. if (type != REG_EXPAND_SZ) {
  270. memmove(data, buffer, buflen);
  271. HeapFree(GetProcessHeap(), 0, buffer);
  272. return 0;
  273. }
  274. ret = ExpandEnvironmentStrings((TCHAR *) buffer, data, datalen);
  275. if (! ret || ret > datalen) {
  276. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_EXPANDENVIRONMENTSTRINGS_FAILED, buffer, error_string(GetLastError()), 0);
  277. HeapFree(GetProcessHeap(), 0, buffer);
  278. return 3;
  279. }
  280. HeapFree(GetProcessHeap(), 0, buffer);
  281. return 0;
  282. }
  283. int get_string(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  284. return get_string(key, value, data, datalen, false, sanitise, true);
  285. }
  286. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise, bool must_exist) {
  287. return get_string(key, value, data, datalen, true, sanitise, must_exist);
  288. }
  289. int expand_parameter(HKEY key, TCHAR *value, TCHAR *data, unsigned long datalen, bool sanitise) {
  290. return expand_parameter(key, value, data, datalen, sanitise, true);
  291. }
  292. /*
  293. Sets a string in the registry.
  294. Returns: 0 if it was set.
  295. 1 on error.
  296. */
  297. int set_string(HKEY key, TCHAR *value, TCHAR *string, bool expand) {
  298. unsigned long type = expand ? REG_EXPAND_SZ : REG_SZ;
  299. if (RegSetValueEx(key, value, 0, type, (const unsigned char *) string, (unsigned long) (_tcslen(string) + 1) * sizeof(TCHAR)) == ERROR_SUCCESS) return 0;
  300. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  301. return 1;
  302. }
  303. int set_string(HKEY key, TCHAR *value, TCHAR *string) {
  304. return set_string(key, value, string, false);
  305. }
  306. int set_expand_string(HKEY key, TCHAR *value, TCHAR *string) {
  307. return set_string(key, value, string, true);
  308. }
  309. /*
  310. Set an unsigned long in the registry.
  311. Returns: 0 if it was set.
  312. 1 on error.
  313. */
  314. int set_number(HKEY key, TCHAR *value, unsigned long number) {
  315. if (RegSetValueEx(key, value, 0, REG_DWORD, (const unsigned char *) &number, sizeof(number)) == ERROR_SUCCESS) return 0;
  316. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_SETVALUE_FAILED, value, error_string(GetLastError()), 0);
  317. return 1;
  318. }
  319. /*
  320. Query an unsigned long from the registry.
  321. Returns: 1 if a number was retrieved.
  322. 0 if none was found and must_exist is false.
  323. -1 if none was found and must_exist is true.
  324. -2 otherwise.
  325. */
  326. int get_number(HKEY key, TCHAR *value, unsigned long *number, bool must_exist) {
  327. unsigned long type = REG_DWORD;
  328. unsigned long number_len = sizeof(unsigned long);
  329. int ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) number, &number_len);
  330. if (ret == ERROR_SUCCESS) return 1;
  331. if (ret == ERROR_FILE_NOT_FOUND) {
  332. if (! must_exist) return 0;
  333. }
  334. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(ret), 0);
  335. if (ret == ERROR_FILE_NOT_FOUND) return -1;
  336. return -2;
  337. }
  338. int get_number(HKEY key, TCHAR *value, unsigned long *number) {
  339. return get_number(key, value, number, true);
  340. }
  341. /* Replace NULL with CRLF. Leave NULL NULL as the end marker. */
  342. int format_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **formatted, unsigned long *newlen) {
  343. unsigned long i, j;
  344. *newlen = dnlen;
  345. if (! *newlen) {
  346. *formatted = 0;
  347. return 0;
  348. }
  349. for (i = 0; i < dnlen; i++) if (! dn[i] && dn[i + 1]) ++*newlen;
  350. *formatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  351. if (! *formatted) {
  352. *newlen = 0;
  353. return 1;
  354. }
  355. for (i = 0, j = 0; i < dnlen; i++) {
  356. (*formatted)[j] = dn[i];
  357. if (! dn[i]) {
  358. if (dn[i + 1]) {
  359. (*formatted)[j] = _T('\r');
  360. (*formatted)[++j] = _T('\n');
  361. }
  362. }
  363. j++;
  364. }
  365. return 0;
  366. }
  367. /* Strip CR and replace LF with NULL. */
  368. int unformat_double_null(TCHAR *dn, unsigned long dnlen, TCHAR **unformatted, unsigned long *newlen) {
  369. unsigned long i, j;
  370. *newlen = 0;
  371. if (! dnlen) {
  372. *unformatted = 0;
  373. return 0;
  374. }
  375. for (i = 0; i < dnlen; i++) if (dn[i] != _T('\r')) ++*newlen;
  376. /* Skip blank lines. */
  377. for (i = 0; i < dnlen; i++) {
  378. if (dn[i] == _T('\r') && dn[i + 1] == _T('\n')) {
  379. /* This is the last CRLF. */
  380. if (i >= dnlen - 2) break;
  381. /*
  382. Strip at the start of the block or if the next characters are
  383. CRLF too.
  384. */
  385. if (! i || (dn[i + 2] == _T('\r') && dn[i + 3] == _T('\n'))) {
  386. for (j = i + 2; j < dnlen; j++) dn[j - 2] = dn[j];
  387. dn[dnlen--] = _T('\0');
  388. dn[dnlen--] = _T('\0');
  389. i--;
  390. --*newlen;
  391. }
  392. }
  393. }
  394. /* Must end with two NULLs. */
  395. *newlen += 2;
  396. *unformatted = (TCHAR *) HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, *newlen * sizeof(TCHAR));
  397. if (! *unformatted) return 1;
  398. for (i = 0, j = 0; i < dnlen; i++) {
  399. if (dn[i] == _T('\r')) continue;
  400. if (dn[i] == _T('\n')) (*unformatted)[j] = _T('\0');
  401. else (*unformatted)[j] = dn[i];
  402. j++;
  403. }
  404. return 0;
  405. }
  406. void override_milliseconds(TCHAR *service_name, HKEY key, TCHAR *value, unsigned long *buffer, unsigned long default_value, unsigned long event) {
  407. unsigned long type = REG_DWORD;
  408. unsigned long buflen = sizeof(unsigned long);
  409. bool ok = false;
  410. unsigned long ret = RegQueryValueEx(key, value, 0, &type, (unsigned char *) buffer, &buflen);
  411. if (ret != ERROR_SUCCESS) {
  412. if (ret != ERROR_FILE_NOT_FOUND) {
  413. if (type != REG_DWORD) {
  414. TCHAR milliseconds[16];
  415. _sntprintf_s(milliseconds, _countof(milliseconds), _TRUNCATE, _T("%lu"), default_value);
  416. log_event(EVENTLOG_WARNING_TYPE, event, service_name, value, milliseconds, 0);
  417. }
  418. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, value, error_string(ret), 0);
  419. }
  420. }
  421. else ok = true;
  422. if (! ok) *buffer = default_value;
  423. }
  424. HKEY open_service_registry(const TCHAR *service_name, REGSAM sam, bool must_exist) {
  425. /* Get registry */
  426. TCHAR registry[KEY_LENGTH];
  427. if (service_registry_path(service_name, false, 0, registry, _countof(registry)) < 0) {
  428. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, NSSM_REGISTRY, _T("open_service_registry()"), 0);
  429. return 0;
  430. }
  431. return open_registry_key(registry, sam, must_exist);
  432. }
  433. long open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam, HKEY *key, bool must_exist) {
  434. /* Get registry */
  435. TCHAR registry[KEY_LENGTH];
  436. if (service_registry_path(service_name, true, sub, registry, _countof(registry)) < 0) {
  437. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, NSSM_REGISTRY, _T("open_registry()"), 0);
  438. return 0;
  439. }
  440. return open_registry_key(registry, sam, key, must_exist);
  441. }
  442. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam, bool must_exist) {
  443. HKEY key;
  444. long error = open_registry(service_name, sub, sam, &key, must_exist);
  445. return key;
  446. }
  447. HKEY open_registry(const TCHAR *service_name, const TCHAR *sub, REGSAM sam) {
  448. return open_registry(service_name, sub, sam, true);
  449. }
  450. HKEY open_registry(const TCHAR *service_name, REGSAM sam) {
  451. return open_registry(service_name, 0, sam, true);
  452. }
  453. int get_io_parameters(nssm_service_t *service, HKEY key) {
  454. /* stdin */
  455. 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)) {
  456. service->stdin_sharing = service->stdin_disposition = service->stdin_flags = 0;
  457. ZeroMemory(service->stdin_path, _countof(service->stdin_path) * sizeof(TCHAR));
  458. return 1;
  459. }
  460. /* stdout */
  461. 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)) {
  462. service->stdout_sharing = service->stdout_disposition = service->stdout_flags = 0;
  463. ZeroMemory(service->stdout_path, _countof(service->stdout_path) * sizeof(TCHAR));
  464. return 2;
  465. }
  466. /* stderr */
  467. 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)) {
  468. service->stderr_sharing = service->stderr_disposition = service->stderr_flags = 0;
  469. ZeroMemory(service->stderr_path, _countof(service->stderr_path) * sizeof(TCHAR));
  470. return 3;
  471. }
  472. return 0;
  473. }
  474. int get_parameters(nssm_service_t *service, STARTUPINFO *si) {
  475. unsigned long ret;
  476. /* Try to open the registry */
  477. HKEY key = open_registry(service->name, KEY_READ);
  478. if (! key) return 1;
  479. /* Don't expand parameters when retrieving for the GUI. */
  480. bool expand = si ? true : false;
  481. /* Try to get environment variables - may fail */
  482. get_environment(service->name, key, NSSM_REG_ENV, &service->env, &service->envlen);
  483. /* Environment variables to add to existing rather than replace - may fail. */
  484. get_environment(service->name, key, NSSM_REG_ENV_EXTRA, &service->env_extra, &service->env_extralen);
  485. /* Set environment if we are starting the service. */
  486. if (si) set_service_environment(service);
  487. /* Try to get executable file - MUST succeed */
  488. if (get_string(key, NSSM_REG_EXE, service->exe, sizeof(service->exe), expand, false, true)) {
  489. RegCloseKey(key);
  490. return 3;
  491. }
  492. /* Try to get flags - may fail and we don't care */
  493. if (get_string(key, NSSM_REG_FLAGS, service->flags, sizeof(service->flags), expand, false, true)) {
  494. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_FLAGS, NSSM_REG_FLAGS, service->name, service->exe, 0);
  495. ZeroMemory(service->flags, sizeof(service->flags));
  496. }
  497. /* Try to get startup directory - may fail and we fall back to a default */
  498. if (get_string(key, NSSM_REG_DIR, service->dir, sizeof(service->dir), expand, true, true) || ! service->dir[0]) {
  499. _sntprintf_s(service->dir, _countof(service->dir), _TRUNCATE, _T("%s"), service->exe);
  500. strip_basename(service->dir);
  501. if (service->dir[0] == _T('\0')) {
  502. /* Help! */
  503. ret = GetWindowsDirectory(service->dir, sizeof(service->dir));
  504. if (! ret || ret > sizeof(service->dir)) {
  505. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_NO_DIR_AND_NO_FALLBACK, NSSM_REG_DIR, service->name, 0);
  506. RegCloseKey(key);
  507. return 4;
  508. }
  509. }
  510. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_NO_DIR, NSSM_REG_DIR, service->name, service->dir, 0);
  511. }
  512. /* Try to get processor affinity - may fail. */
  513. TCHAR buffer[512];
  514. if (get_string(key, NSSM_REG_AFFINITY, buffer, sizeof(buffer), false, false, false) || ! buffer[0]) service->affinity = 0LL;
  515. else if (affinity_string_to_mask(buffer, &service->affinity)) {
  516. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_AFFINITY_MASK, service->name, buffer);
  517. service->affinity = 0LL;
  518. }
  519. else {
  520. DWORD_PTR affinity, system_affinity;
  521. if (GetProcessAffinityMask(GetCurrentProcess(), &affinity, &system_affinity)) {
  522. _int64 effective_affinity = service->affinity & system_affinity;
  523. if (effective_affinity != service->affinity) {
  524. TCHAR *system = 0;
  525. if (! affinity_mask_to_string(system_affinity, &system)) {
  526. TCHAR *effective = 0;
  527. if (! affinity_mask_to_string(effective_affinity, &effective)) {
  528. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_EFFECTIVE_AFFINITY_MASK, service->name, buffer, system, effective, 0);
  529. }
  530. HeapFree(GetProcessHeap(), 0, effective);
  531. }
  532. HeapFree(GetProcessHeap(), 0, system);
  533. }
  534. }
  535. }
  536. /* Try to get priority - may fail. */
  537. unsigned long priority;
  538. if (get_number(key, NSSM_REG_PRIORITY, &priority, false) == 1) {
  539. if (priority == (priority & priority_mask())) service->priority = priority;
  540. else log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_PRIORITY, service->name, NSSM_REG_PRIORITY, 0);
  541. }
  542. /* Try to get hook I/O sharing - may fail. */
  543. unsigned long hook_share_output_handles;
  544. if (get_number(key, NSSM_REG_HOOK_SHARE_OUTPUT_HANDLES, &hook_share_output_handles, false) == 1) {
  545. if (hook_share_output_handles) service->hook_share_output_handles = true;
  546. else service->hook_share_output_handles = false;
  547. }
  548. else hook_share_output_handles = false;
  549. /* Try to get file rotation settings - may fail. */
  550. unsigned long rotate_files;
  551. if (get_number(key, NSSM_REG_ROTATE, &rotate_files, false) == 1) {
  552. if (rotate_files) service->rotate_files = true;
  553. else service->rotate_files = false;
  554. }
  555. else service->rotate_files = false;
  556. if (get_number(key, NSSM_REG_ROTATE_ONLINE, &rotate_files, false) == 1) {
  557. if (rotate_files) service->rotate_stdout_online = service->rotate_stderr_online = true;
  558. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  559. }
  560. else service->rotate_stdout_online = service->rotate_stderr_online = false;
  561. /* Hook I/O sharing and online rotation need a pipe. */
  562. service->use_stdout_pipe = service->rotate_stdout_online || hook_share_output_handles;
  563. service->use_stderr_pipe = service->rotate_stderr_online || hook_share_output_handles;
  564. if (get_number(key, NSSM_REG_ROTATE_SECONDS, &service->rotate_seconds, false) != 1) service->rotate_seconds = 0;
  565. if (get_number(key, NSSM_REG_ROTATE_BYTES_LOW, &service->rotate_bytes_low, false) != 1) service->rotate_bytes_low = 0;
  566. if (get_number(key, NSSM_REG_ROTATE_BYTES_HIGH, &service->rotate_bytes_high, false) != 1) service->rotate_bytes_high = 0;
  567. override_milliseconds(service->name, key, NSSM_REG_ROTATE_DELAY, &service->rotate_delay, NSSM_ROTATE_DELAY, NSSM_EVENT_BOGUS_THROTTLE);
  568. /* Try to get force new console setting - may fail. */
  569. if (get_number(key, NSSM_REG_NO_CONSOLE, &service->no_console, false) != 1) service->no_console = 0;
  570. /* Change to startup directory in case stdout/stderr are relative paths. */
  571. TCHAR cwd[PATH_LENGTH];
  572. GetCurrentDirectory(_countof(cwd), cwd);
  573. SetCurrentDirectory(service->dir);
  574. /* Try to get stdout and stderr */
  575. if (get_io_parameters(service, key)) {
  576. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_GET_OUTPUT_HANDLES_FAILED, service->name, 0);
  577. RegCloseKey(key);
  578. SetCurrentDirectory(cwd);
  579. return 5;
  580. }
  581. /* Change back in case the startup directory needs to be deleted. */
  582. SetCurrentDirectory(cwd);
  583. /* Try to get mandatory restart delay */
  584. override_milliseconds(service->name, key, NSSM_REG_RESTART_DELAY, &service->restart_delay, 0, NSSM_EVENT_BOGUS_RESTART_DELAY);
  585. /* Try to get throttle restart delay */
  586. override_milliseconds(service->name, key, NSSM_REG_THROTTLE, &service->throttle_delay, NSSM_RESET_THROTTLE_RESTART, NSSM_EVENT_BOGUS_THROTTLE);
  587. /* Try to get service stop flags. */
  588. unsigned long type = REG_DWORD;
  589. unsigned long stop_method_skip;
  590. unsigned long buflen = sizeof(stop_method_skip);
  591. bool stop_ok = false;
  592. ret = RegQueryValueEx(key, NSSM_REG_STOP_METHOD_SKIP, 0, &type, (unsigned char *) &stop_method_skip, &buflen);
  593. if (ret != ERROR_SUCCESS) {
  594. if (ret != ERROR_FILE_NOT_FOUND) {
  595. if (type != REG_DWORD) {
  596. log_event(EVENTLOG_WARNING_TYPE, NSSM_EVENT_BOGUS_STOP_METHOD_SKIP, service->name, NSSM_REG_STOP_METHOD_SKIP, NSSM, 0);
  597. }
  598. else log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_QUERYVALUE_FAILED, NSSM_REG_STOP_METHOD_SKIP, error_string(ret), 0);
  599. }
  600. }
  601. else stop_ok = true;
  602. /* Try all methods except those requested to be skipped. */
  603. service->stop_method = ~0;
  604. if (stop_ok) service->stop_method &= ~stop_method_skip;
  605. /* Try to get kill delays - may fail. */
  606. 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);
  607. 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);
  608. 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);
  609. /* Try to get process tree settings - may fail. */
  610. unsigned long kill_process_tree;
  611. if (get_number(key, NSSM_REG_KILL_PROCESS_TREE, &kill_process_tree, false) == 1) {
  612. if (kill_process_tree) service->kill_process_tree = true;
  613. else service->kill_process_tree = false;
  614. }
  615. else service->kill_process_tree = true;
  616. /* Try to get default exit action. */
  617. bool default_action;
  618. service->default_exit_action = NSSM_EXIT_RESTART;
  619. TCHAR action_string[ACTION_LEN];
  620. if (! get_exit_action(service->name, 0, action_string, &default_action)) {
  621. for (int i = 0; exit_action_strings[i]; i++) {
  622. if (! _tcsnicmp((const TCHAR *) action_string, exit_action_strings[i], ACTION_LEN)) {
  623. service->default_exit_action = i;
  624. break;
  625. }
  626. }
  627. }
  628. /* Close registry */
  629. RegCloseKey(key);
  630. return 0;
  631. }
  632. /*
  633. Sets the string for the exit action corresponding to the exit code.
  634. ret is a pointer to an unsigned long containing the exit code.
  635. If ret is NULL, we retrieve the default exit action unconditionally.
  636. action is a buffer which receives the string.
  637. default_action is a pointer to a bool which is set to false if there
  638. was an explicit string for the given exit code, or true if we are
  639. returning the default action.
  640. Returns: 0 on success.
  641. 1 on error.
  642. */
  643. int get_exit_action(const TCHAR *service_name, unsigned long *ret, TCHAR *action, bool *default_action) {
  644. /* Are we returning the default action or a status-specific one? */
  645. *default_action = ! ret;
  646. /* Try to open the registry */
  647. HKEY key = open_registry(service_name, NSSM_REG_EXIT, KEY_READ);
  648. if (! key) return 1;
  649. unsigned long type = REG_SZ;
  650. unsigned long action_len = ACTION_LEN;
  651. TCHAR code[16];
  652. if (! ret) code[0] = _T('\0');
  653. else if (_sntprintf_s(code, _countof(code), _TRUNCATE, _T("%lu"), *ret) < 0) {
  654. RegCloseKey(key);
  655. return get_exit_action(service_name, 0, action, default_action);
  656. }
  657. if (RegQueryValueEx(key, code, 0, &type, (unsigned char *) action, &action_len) != ERROR_SUCCESS) {
  658. RegCloseKey(key);
  659. /* Try again with * as the key if an exit code was defined */
  660. if (ret) return get_exit_action(service_name, 0, action, default_action);
  661. return 0;
  662. }
  663. /* Close registry */
  664. RegCloseKey(key);
  665. return 0;
  666. }
  667. int set_hook(const TCHAR *service_name, const TCHAR *hook_event, const TCHAR *hook_action, TCHAR *cmd) {
  668. /* Try to open the registry */
  669. TCHAR registry[KEY_LENGTH];
  670. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("%s\\%s"), NSSM_REG_HOOK, hook_event) < 0) {
  671. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("hook registry"), _T("set_hook()"), 0);
  672. return 1;
  673. }
  674. HKEY key;
  675. long error;
  676. /* Don't create keys needlessly. */
  677. if (! _tcslen(cmd)) {
  678. key = open_registry(service_name, registry, KEY_READ, false);
  679. if (! key) return 0;
  680. error = RegQueryValueEx(key, hook_action, 0, 0, 0, 0);
  681. RegCloseKey(key);
  682. if (error == ERROR_FILE_NOT_FOUND) return 0;
  683. }
  684. key = open_registry(service_name, registry, KEY_WRITE);
  685. if (! key) return 1;
  686. int ret = 1;
  687. if (_tcslen(cmd)) ret = set_string(key, (TCHAR *) hook_action, cmd, true);
  688. else {
  689. error = RegDeleteValue(key, hook_action);
  690. if (error == ERROR_SUCCESS || error == ERROR_FILE_NOT_FOUND) ret = 0;
  691. }
  692. /* Close registry */
  693. RegCloseKey(key);
  694. return ret;
  695. }
  696. int get_hook(const TCHAR *service_name, const TCHAR *hook_event, const TCHAR *hook_action, TCHAR *buffer, unsigned long buflen) {
  697. /* Try to open the registry */
  698. TCHAR registry[KEY_LENGTH];
  699. if (_sntprintf_s(registry, _countof(registry), _TRUNCATE, _T("%s\\%s"), NSSM_REG_HOOK, hook_event) < 0) {
  700. log_event(EVENTLOG_ERROR_TYPE, NSSM_EVENT_OUT_OF_MEMORY, _T("hook registry"), _T("get_hook()"), 0);
  701. return 1;
  702. }
  703. HKEY key;
  704. long error = open_registry(service_name, registry, KEY_READ, &key, false);
  705. if (! key) {
  706. if (error == ERROR_FILE_NOT_FOUND) {
  707. ZeroMemory(buffer, buflen);
  708. return 0;
  709. }
  710. return 1;
  711. }
  712. int ret = expand_parameter(key, (TCHAR *) hook_action, buffer, buflen, true, false);
  713. /* Close registry */
  714. RegCloseKey(key);
  715. return ret;
  716. }