2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afs/param.h>
23 #include <rx/rx_prototypes.h>
24 #include <WINNT/afsreg.h>
29 long cm_daemonCheckDownInterval = 180;
30 long cm_daemonCheckUpInterval = 240;
31 long cm_daemonCheckVolInterval = 3600;
32 long cm_daemonCheckCBInterval = 60;
33 long cm_daemonCheckVolCBInterval = 0;
34 long cm_daemonCheckLockInterval = 60;
35 long cm_daemonTokenCheckInterval = 180;
36 long cm_daemonCheckOfflineVolInterval = 600;
37 long cm_daemonPerformanceTuningInterval = 0;
39 osi_rwlock_t cm_daemonLock;
41 long cm_bkgQueueCount; /* # of queued requests */
43 int cm_bkgWaitingForCount; /* true if someone's waiting for cm_bkgQueueCount to drop */
45 cm_bkgRequest_t *cm_bkgListp; /* first elt in the list of requests */
46 cm_bkgRequest_t *cm_bkgListEndp; /* last elt in the list of requests */
48 static int daemon_ShutdownFlag = 0;
49 static int cm_nDaemons = 0;
50 static time_t lastIPAddrChange = 0;
52 static EVENT_HANDLE cm_Daemon_ShutdownEvent = NULL;
53 static EVENT_HANDLE cm_IPAddrDaemon_ShutdownEvent = NULL;
54 static EVENT_HANDLE cm_BkgDaemon_ShutdownEvent[CM_MAX_DAEMONS] =
55 {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
57 void cm_IpAddrDaemon(long parm)
59 extern void smb_CheckVCs(void);
60 char * name = "cm_IPAddrDaemon_ShutdownEvent";
62 cm_IPAddrDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
63 if ( GetLastError() == ERROR_ALREADY_EXISTS )
64 afsi_log("Event Object Already Exists: %s", name);
66 rx_StartClientThread();
68 while (daemon_ShutdownFlag == 0) {
71 thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
72 Result = NotifyAddrChange(NULL,NULL);
73 if (Result == NO_ERROR && daemon_ShutdownFlag == 0) {
74 lastIPAddrChange = osi_Time();
75 smb_SetLanAdapterChangeDetected();
76 cm_SetLanAdapterChangeDetected();
77 thrd_ResetEvent(cm_IPAddrDaemon_ShutdownEvent);
81 thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
84 void cm_BkgDaemon(void * parm)
89 long daemonID = (long)parm;
91 snprintf(name, sizeof(name), "cm_BkgDaemon_ShutdownEvent%d", daemonID);
93 cm_BkgDaemon_ShutdownEvent[daemonID] = thrd_CreateEvent(NULL, FALSE, FALSE, name);
94 if ( GetLastError() == ERROR_ALREADY_EXISTS )
95 afsi_log("Event Object Already Exists: %s", name);
97 rx_StartClientThread();
99 lock_ObtainWrite(&cm_daemonLock);
100 while (daemon_ShutdownFlag == 0) {
101 if (!cm_bkgListEndp) {
102 osi_SleepW((LONG_PTR)&cm_bkgListp, &cm_daemonLock);
103 lock_ObtainWrite(&cm_daemonLock);
107 /* we found a request */
108 for (rp = cm_bkgListEndp; rp; rp = (cm_bkgRequest_t *) osi_QPrev(&rp->q))
110 if (cm_ServerAvailable(&rp->scp->fid, rp->userp) &&
111 !(rp->scp->flags & CM_SCACHEFLAG_DATASTORING))
115 /* we couldn't find a request that we could process at the current time */
116 lock_ReleaseWrite(&cm_daemonLock);
118 lock_ObtainWrite(&cm_daemonLock);
122 osi_QRemoveHT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **) &cm_bkgListEndp, &rp->q);
123 osi_assertx(cm_bkgQueueCount-- > 0, "cm_bkgQueueCount 0");
124 lock_ReleaseWrite(&cm_daemonLock);
126 osi_Log1(afsd_logp,"cm_BkgDaemon processing request 0x%p", rp);
128 #ifdef DEBUG_REFCOUNT
129 osi_Log2(afsd_logp,"cm_BkgDaemon (before) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
131 code = (*rp->procp)(rp->scp, rp->p1, rp->p2, rp->p3, rp->p4, rp->userp);
132 #ifdef DEBUG_REFCOUNT
133 osi_Log2(afsd_logp,"cm_BkgDaemon (after) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
136 cm_ReleaseUser(rp->userp);
137 cm_ReleaseSCache(rp->scp);
141 lock_ObtainWrite(&cm_daemonLock);
144 * Keep the following list synchronized with the
145 * error code list in cm_BkgStore
148 case 0: /* success */
149 osi_Log1(afsd_logp,"cm_BkgDaemon SUCCESS: request 0x%p", rp);
151 case CM_ERROR_TIMEDOUT: /* or server restarting */
153 case CM_ERROR_WOULDBLOCK:
154 case CM_ERROR_ALLBUSY:
155 case CM_ERROR_ALLDOWN:
156 case CM_ERROR_ALLOFFLINE:
157 case CM_ERROR_PARTIALWRITE:
158 osi_Log2(afsd_logp,"cm_BkgDaemon re-queueing failed request 0x%p code 0x%x",
161 osi_QAddT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **)&cm_bkgListEndp, &rp->q);
164 osi_Log2(afsd_logp,"cm_BkgDaemon FAILED: request dropped 0x%p code 0x%x",
168 lock_ReleaseWrite(&cm_daemonLock);
170 thrd_SetEvent(cm_BkgDaemon_ShutdownEvent[daemonID]);
174 void cm_QueueBKGRequest(cm_scache_t *scp, cm_bkgProc_t *procp, afs_uint32 p1, afs_uint32 p2, afs_uint32 p3, afs_uint32 p4,
179 rp = malloc(sizeof(*rp));
180 memset(rp, 0, sizeof(*rp));
192 lock_ObtainWrite(&cm_daemonLock);
194 osi_QAdd((osi_queue_t **) &cm_bkgListp, &rp->q);
197 lock_ReleaseWrite(&cm_daemonLock);
199 osi_Wakeup((LONG_PTR) &cm_bkgListp);
203 IsWindowsFirewallPresent(void)
208 BOOLEAN result = FALSE;
209 LPQUERY_SERVICE_CONFIG pConfig = NULL;
213 /* Open services manager */
214 scm = OpenSCManager(NULL, NULL, GENERIC_READ);
215 if (!scm) return FALSE;
217 /* Open Windows Firewall service */
218 svc = OpenService(scm, "MpsSvc", SERVICE_QUERY_CONFIG);
220 afsi_log("MpsSvc Service could not be opened for query: 0x%x", GetLastError());
221 svc = OpenService(scm, "SharedAccess", SERVICE_QUERY_CONFIG);
223 afsi_log("SharedAccess Service could not be opened for query: 0x%x", GetLastError());
228 /* Query Windows Firewall service config, first just to get buffer size */
229 /* Expected to fail, so don't test return value */
230 (void) QueryServiceConfig(svc, NULL, 0, &BufSize);
231 status = GetLastError();
232 if (status != ERROR_INSUFFICIENT_BUFFER)
235 /* Allocate buffer */
236 pConfig = (LPQUERY_SERVICE_CONFIG)GlobalAlloc(GMEM_FIXED,BufSize);
240 /* Query Windows Firewall service config, this time for real */
241 flag = QueryServiceConfig(svc, pConfig, BufSize, &BufSize);
243 afsi_log("QueryServiceConfig failed: 0x%x", GetLastError());
247 /* Is it autostart? */
248 afsi_log("AutoStart 0x%x", pConfig->dwStartType);
249 if (pConfig->dwStartType < SERVICE_DEMAND_START)
255 CloseServiceHandle(svc);
257 CloseServiceHandle(scm);
263 cm_DaemonCheckInit(void)
270 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
271 0, KEY_QUERY_VALUE, &parmKey);
275 dummyLen = sizeof(DWORD);
276 code = RegQueryValueEx(parmKey, "daemonCheckDownInterval", NULL, NULL,
277 (BYTE *) &dummy, &dummyLen);
278 if (code == ERROR_SUCCESS && dummy)
279 cm_daemonCheckDownInterval = dummy;
280 afsi_log("daemonCheckDownInterval is %d", cm_daemonCheckDownInterval);
282 dummyLen = sizeof(DWORD);
283 code = RegQueryValueEx(parmKey, "daemonCheckUpInterval", NULL, NULL,
284 (BYTE *) &dummy, &dummyLen);
285 if (code == ERROR_SUCCESS && dummy)
286 cm_daemonCheckUpInterval = dummy;
287 afsi_log("daemonCheckUpInterval is %d", cm_daemonCheckUpInterval);
289 dummyLen = sizeof(DWORD);
290 code = RegQueryValueEx(parmKey, "daemonCheckVolInterval", NULL, NULL,
291 (BYTE *) &dummy, &dummyLen);
292 if (code == ERROR_SUCCESS && dummy)
293 cm_daemonCheckVolInterval = dummy;
294 afsi_log("daemonCheckVolInterval is %d", cm_daemonCheckVolInterval);
296 dummyLen = sizeof(DWORD);
297 code = RegQueryValueEx(parmKey, "daemonCheckCBInterval", NULL, NULL,
298 (BYTE *) &dummy, &dummyLen);
299 if (code == ERROR_SUCCESS && dummy)
300 cm_daemonCheckCBInterval = dummy;
301 afsi_log("daemonCheckCBInterval is %d", cm_daemonCheckCBInterval);
303 dummyLen = sizeof(DWORD);
304 code = RegQueryValueEx(parmKey, "daemonCheckVolCBInterval", NULL, NULL,
305 (BYTE *) &dummy, &dummyLen);
306 if (code == ERROR_SUCCESS && dummy)
307 cm_daemonCheckVolCBInterval = dummy;
308 afsi_log("daemonCheckVolCBInterval is %d", cm_daemonCheckVolCBInterval);
310 dummyLen = sizeof(DWORD);
311 code = RegQueryValueEx(parmKey, "daemonCheckLockInterval", NULL, NULL,
312 (BYTE *) &dummy, &dummyLen);
313 if (code == ERROR_SUCCESS && dummy)
314 cm_daemonCheckLockInterval = dummy;
315 afsi_log("daemonCheckLockInterval is %d", cm_daemonCheckLockInterval);
317 dummyLen = sizeof(DWORD);
318 code = RegQueryValueEx(parmKey, "daemonCheckTokenInterval", NULL, NULL,
319 (BYTE *) &dummy, &dummyLen);
320 if (code == ERROR_SUCCESS && dummy)
321 cm_daemonTokenCheckInterval = dummy;
322 afsi_log("daemonCheckTokenInterval is %d", cm_daemonTokenCheckInterval);
324 dummyLen = sizeof(DWORD);
325 code = RegQueryValueEx(parmKey, "daemonCheckOfflineVolInterval", NULL, NULL,
326 (BYTE *) &dummy, &dummyLen);
327 if (code == ERROR_SUCCESS && dummy)
328 cm_daemonCheckOfflineVolInterval = dummy;
329 afsi_log("daemonCheckOfflineVolInterval is %d", cm_daemonCheckOfflineVolInterval);
331 dummyLen = sizeof(DWORD);
332 code = RegQueryValueEx(parmKey, "daemonPerformanceTuningInterval", NULL, NULL,
333 (BYTE *) &dummy, &dummyLen);
334 if (code == ERROR_SUCCESS)
335 cm_daemonPerformanceTuningInterval = dummy;
336 afsi_log("daemonPerformanceTuningInterval is %d", cm_daemonPerformanceTuningInterval);
338 RegCloseKey(parmKey);
340 if (cm_daemonPerformanceTuningInterval)
341 cm_PerformanceTuningInit();
344 /* periodic check daemon */
345 void cm_Daemon(long parm)
348 time_t lastLockCheck;
350 time_t lastCBExpirationCheck;
351 time_t lastVolCBRenewalCheck;
352 time_t lastDownServerCheck;
353 time_t lastUpServerCheck;
354 time_t lastTokenCacheCheck;
355 time_t lastBusyVolCheck;
356 time_t lastPerformanceCheck;
361 char * name = "cm_Daemon_ShutdownEvent";
362 int configureFirewall = IsWindowsFirewallPresent();
363 int bAddrChangeCheck = 0;
365 cm_Daemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
366 if ( GetLastError() == ERROR_ALREADY_EXISTS )
367 afsi_log("Event Object Already Exists: %s", name);
369 if (!configureFirewall) {
370 afsi_log("No Windows Firewall detected");
373 /* ping all file servers, up or down, with unauthenticated connection,
374 * to find out whether we have all our callbacks from the server still.
375 * Also, ping down VLDBs.
378 * Seed the random number generator with our own address, so that
379 * clients starting at the same time don't all do vol checks at the
382 gethostname(thostName, sizeof(thostName));
383 thp = gethostbyname(thostName);
384 if (thp == NULL) /* In djgpp, gethostname returns the netbios
385 name of the machine. gethostbyname will fail
386 looking this up if it differs from DNS name. */
389 memcpy(&code, thp->h_addr_list[0], 4);
393 cm_DaemonCheckInit();
396 lastVolCheck = now - cm_daemonCheckVolInterval/2 + (rand() % cm_daemonCheckVolInterval);
397 lastCBExpirationCheck = now - cm_daemonCheckCBInterval/2 + (rand() % cm_daemonCheckCBInterval);
398 if (cm_daemonCheckVolCBInterval)
399 lastVolCBRenewalCheck = now - cm_daemonCheckVolCBInterval/2 + (rand() % cm_daemonCheckVolCBInterval);
400 lastLockCheck = now - cm_daemonCheckLockInterval/2 + (rand() % cm_daemonCheckLockInterval);
401 lastDownServerCheck = now - cm_daemonCheckDownInterval/2 + (rand() % cm_daemonCheckDownInterval);
402 lastUpServerCheck = now - cm_daemonCheckUpInterval/2 + (rand() % cm_daemonCheckUpInterval);
403 lastTokenCacheCheck = now - cm_daemonTokenCheckInterval/2 + (rand() % cm_daemonTokenCheckInterval);
404 lastBusyVolCheck = now - cm_daemonCheckOfflineVolInterval/2 * (rand() % cm_daemonCheckOfflineVolInterval);
405 if (cm_daemonPerformanceTuningInterval)
406 lastPerformanceCheck = now - cm_daemonPerformanceTuningInterval/2 * (rand() % cm_daemonPerformanceTuningInterval);
408 while (daemon_ShutdownFlag == 0) {
409 /* check to see if the listener threads halted due to network
410 * disconnect or other issues. If so, attempt to restart them.
412 smb_RestartListeners(0);
414 if (daemon_ShutdownFlag == 1)
417 if (configureFirewall) {
418 /* Open Microsoft Firewall to allow in port 7001 */
419 switch (icf_CheckAndAddAFSPorts(AFS_PORTSET_CLIENT)) {
421 afsi_log("Windows Firewall Configuration succeeded");
422 configureFirewall = 0;
425 afsi_log("Invalid Windows Firewall Port Set");
428 afsi_log("Unable to open Windows Firewall Profile");
431 afsi_log("Unable to create/modify Windows Firewall Port entries");
434 afsi_log("Unknown Windows Firewall Configuration error");
438 /* find out what time it is */
441 /* Determine whether an address change took place that we need to respond to */
442 if (bAddrChangeCheck)
443 bAddrChangeCheck = 0;
445 if (lastIPAddrChange != 0 && lastIPAddrChange + 2500 < now) {
446 bAddrChangeCheck = 1;
447 lastIPAddrChange = 0;
450 /* check down servers */
451 if ((bAddrChangeCheck || now > lastDownServerCheck + cm_daemonCheckDownInterval) &&
452 daemon_ShutdownFlag == 0) {
453 lastDownServerCheck = now;
454 osi_Log0(afsd_logp, "cm_Daemon CheckDownServers");
455 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, NULL);
456 if (daemon_ShutdownFlag == 1)
461 if (bAddrChangeCheck)
462 cm_ForceNewConnectionsAllServers();
464 /* check up servers */
465 if ((bAddrChangeCheck || now > lastUpServerCheck + cm_daemonCheckUpInterval) &&
466 daemon_ShutdownFlag == 0) {
467 lastUpServerCheck = now;
468 osi_Log0(afsd_logp, "cm_Daemon CheckUpServers");
469 cm_CheckServers(CM_FLAG_CHECKUPSERVERS, NULL);
470 if (daemon_ShutdownFlag == 1)
475 if (bAddrChangeCheck) {
477 cm_VolStatus_Network_Addr_Change();
480 if (now > lastVolCheck + cm_daemonCheckVolInterval &&
481 daemon_ShutdownFlag == 0) {
484 if (daemon_ShutdownFlag == 1)
489 if (cm_daemonCheckVolCBInterval &&
490 now > lastVolCBRenewalCheck + cm_daemonCheckVolCBInterval &&
491 daemon_ShutdownFlag == 0) {
492 lastVolCBRenewalCheck = now;
493 cm_VolumeRenewROCallbacks();
494 if (daemon_ShutdownFlag == 1)
499 if ((bAddrChangeCheck || now > lastBusyVolCheck + cm_daemonCheckOfflineVolInterval) &&
500 daemon_ShutdownFlag == 0) {
502 cm_CheckOfflineVolumes();
503 if (daemon_ShutdownFlag == 1)
508 if (now > lastCBExpirationCheck + cm_daemonCheckCBInterval &&
509 daemon_ShutdownFlag == 0) {
510 lastCBExpirationCheck = now;
511 cm_CheckCBExpiration();
512 if (daemon_ShutdownFlag == 1)
517 if (now > lastLockCheck + cm_daemonCheckLockInterval &&
518 daemon_ShutdownFlag == 0) {
521 if (daemon_ShutdownFlag == 1)
526 if (now > lastTokenCacheCheck + cm_daemonTokenCheckInterval &&
527 daemon_ShutdownFlag == 0) {
528 lastTokenCacheCheck = now;
529 cm_CheckTokenCache(now);
530 if (daemon_ShutdownFlag == 1)
535 /* allow an exit to be called prior to stopping the service */
536 hHookDll = LoadLibrary(AFSD_HOOK_DLL);
540 AfsdDaemonHook daemonHook = ( AfsdDaemonHook ) GetProcAddress(hHookDll, AFSD_DAEMON_HOOK);
543 hookRc = daemonHook();
545 FreeLibrary(hHookDll);
550 SetEvent(WaitToTerminate);
554 if (daemon_ShutdownFlag == 1) {
558 if (cm_daemonPerformanceTuningInterval &&
559 now > lastPerformanceCheck + cm_daemonPerformanceTuningInterval &&
560 daemon_ShutdownFlag == 0) {
561 lastPerformanceCheck = now;
562 cm_PerformanceTuningCheck();
563 if (daemon_ShutdownFlag == 1)
568 thrd_Sleep(10000); /* sleep 10 seconds */
570 thrd_SetEvent(cm_Daemon_ShutdownEvent);
573 void cm_DaemonShutdown(void)
578 daemon_ShutdownFlag = 1;
579 osi_Wakeup((LONG_PTR) &cm_bkgListp);
581 /* wait for shutdown */
582 if (cm_Daemon_ShutdownEvent)
583 code = thrd_WaitForSingleObject_Event(cm_Daemon_ShutdownEvent, INFINITE);
585 for ( i=0; i<cm_nDaemons; i++) {
586 if (cm_BkgDaemon_ShutdownEvent[i])
587 code = thrd_WaitForSingleObject_Event(cm_BkgDaemon_ShutdownEvent[i], INFINITE);
590 if (cm_IPAddrDaemon_ShutdownEvent)
591 code = thrd_WaitForSingleObject_Event(cm_IPAddrDaemon_ShutdownEvent, INFINITE);
594 void cm_InitDaemon(int nDaemons)
596 static osi_once_t once;
601 cm_nDaemons = (nDaemons > CM_MAX_DAEMONS) ? CM_MAX_DAEMONS : nDaemons;
603 if (osi_Once(&once)) {
604 lock_InitializeRWLock(&cm_daemonLock, "cm_daemonLock");
607 /* creating IP Address Change monitor daemon */
608 phandle = thrd_Create((SecurityAttrib) 0, 0,
609 (ThreadFunc) cm_IpAddrDaemon, 0, 0, &pid, "cm_IpAddrDaemon");
610 osi_assertx(phandle != NULL, "cm_IpAddrDaemon thread creation failure");
611 thrd_CloseHandle(phandle);
613 /* creating pinging daemon */
614 phandle = thrd_Create((SecurityAttrib) 0, 0,
615 (ThreadFunc) cm_Daemon, 0, 0, &pid, "cm_Daemon");
616 osi_assertx(phandle != NULL, "cm_Daemon thread creation failure");
617 thrd_CloseHandle(phandle);
619 for(i=0; i < cm_nDaemons; i++) {
620 phandle = thrd_Create((SecurityAttrib) 0, 0,
621 (ThreadFunc) cm_BkgDaemon, (LPVOID)i, 0, &pid,
623 osi_assertx(phandle != NULL, "cm_BkgDaemon thread creation failure");
624 thrd_CloseHandle(phandle);