src/WINNT/afsd/cm_daemon.c

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   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
   8  */
   9
  10 #include <afs/param.h>
  11 #include <afs/stds.h>
  12
  13 #include <windows.h>
  14 #include <winsock2.h>
  15 #include <iphlpapi.h>
  16 #include <stdlib.h>
  17 #include <malloc.h>
  18 #include <string.h>
  19
  20 #include "afsd.h"
  21
  22 #include <rx/rx.h>
  23 #include <rx/rx_prototypes.h>
  24 #include <WINNT/afsreg.h>
  25
  26 #include "afsicf.h"
  27
  28 /* in seconds */
  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;
  38
  39 osi_rwlock_t cm_daemonLock;
  40
  41 long cm_bkgQueueCount;          /* # of queued requests */
  42
  43 int cm_bkgWaitingForCount;      /* true if someone's waiting for cm_bkgQueueCount to drop */
  44
  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 */
  47
  48 extern int powerStateSuspended;
  49 int daemon_ShutdownFlag = 0;
  50 static int cm_nDaemons = 0;
  51 static time_t lastIPAddrChange = 0;
  52
  53 static EVENT_HANDLE cm_Daemon_ShutdownEvent = NULL;
  54 static EVENT_HANDLE cm_IPAddrDaemon_ShutdownEvent = NULL;
  55 static EVENT_HANDLE cm_BkgDaemon_ShutdownEvent[CM_MAX_DAEMONS] =
  56        {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
  57
  58 void cm_IpAddrDaemon(long parm)
  59 {
  60     extern void smb_CheckVCs(void);
  61     char * name = "cm_IPAddrDaemon_ShutdownEvent";
  62
  63     cm_IPAddrDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
  64     if ( GetLastError() == ERROR_ALREADY_EXISTS )
  65         afsi_log("Event Object Already Exists: %s", name);
  66
  67     rx_StartClientThread();
  68
  69     while (daemon_ShutdownFlag == 0) {
  70         DWORD Result;
  71
  72         thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  73         Result = NotifyAddrChange(NULL,NULL);
  74         if (Result == NO_ERROR && daemon_ShutdownFlag == 0) {
  75             lastIPAddrChange = osi_Time();
  76             smb_SetLanAdapterChangeDetected();
  77             cm_SetLanAdapterChangeDetected();
  78             thrd_ResetEvent(cm_IPAddrDaemon_ShutdownEvent);
  79         }
  80     }
  81
  82     thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  83 }
  84
  85 void cm_BkgDaemon(void * parm)
  86 {
  87     cm_bkgRequest_t *rp;
  88     afs_int32 code;
  89     char name[32] = "";
  90     long daemonID = (long)parm;
  91
  92     snprintf(name, sizeof(name), "cm_BkgDaemon_ShutdownEvent%d", daemonID);
  93
  94     cm_BkgDaemon_ShutdownEvent[daemonID] = thrd_CreateEvent(NULL, FALSE, FALSE, name);
  95     if ( GetLastError() == ERROR_ALREADY_EXISTS )
  96         afsi_log("Event Object Already Exists: %s", name);
  97
  98     rx_StartClientThread();
  99
 100     lock_ObtainWrite(&cm_daemonLock);
 101     while (daemon_ShutdownFlag == 0) {
 102         if (powerStateSuspended) {
 103             Sleep(1000);
 104             continue;
 105         }
 106         if (!cm_bkgListEndp) {
 107             osi_SleepW((LONG_PTR)&cm_bkgListp, &cm_daemonLock);
 108             lock_ObtainWrite(&cm_daemonLock);
 109             continue;
 110         }
 111
 112         /* we found a request */
 113         for (rp = cm_bkgListEndp; rp; rp = (cm_bkgRequest_t *) osi_QPrev(&rp->q))
 114         {
 115             if (cm_ServerAvailable(&rp->scp->fid, rp->userp) &&
 116                 !(rp->scp->flags & CM_SCACHEFLAG_DATASTORING))
 117                 break;
 118         }
 119         if (rp == NULL) {
 120             /* we couldn't find a request that we could process at the current time */
 121             lock_ReleaseWrite(&cm_daemonLock);
 122             Sleep(1000);
 123             lock_ObtainWrite(&cm_daemonLock);
 124             continue;
 125         }
 126
 127         osi_QRemoveHT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **) &cm_bkgListEndp, &rp->q);
 128         osi_assertx(cm_bkgQueueCount-- > 0, "cm_bkgQueueCount 0");
 129         lock_ReleaseWrite(&cm_daemonLock);
 130
 131         osi_Log1(afsd_logp,"cm_BkgDaemon processing request 0x%p", rp);
 132
 133 #ifdef DEBUG_REFCOUNT
 134         osi_Log2(afsd_logp,"cm_BkgDaemon (before) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 135 #endif
 136         code = (*rp->procp)(rp->scp, rp->p1, rp->p2, rp->p3, rp->p4, rp->userp);
 137 #ifdef DEBUG_REFCOUNT
 138         osi_Log2(afsd_logp,"cm_BkgDaemon (after) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 139 #endif
 140
 141         /*
 142          * Keep the following list synchronized with the
 143          * error code list in cm_BkgStore.
 144          * cm_SyncOpDone(CM_SCACHESYNC_ASYNCSTORE) will be called there unless
 145          * one of these errors has occurred.
 146          */
 147         switch ( code ) {
 148         case CM_ERROR_TIMEDOUT: /* or server restarting */
 149         case CM_ERROR_RETRY:
 150         case CM_ERROR_WOULDBLOCK:
 151         case CM_ERROR_ALLBUSY:
 152         case CM_ERROR_ALLDOWN:
 153         case CM_ERROR_ALLOFFLINE:
 154         case CM_ERROR_PARTIALWRITE:
 155             osi_Log2(afsd_logp,"cm_BkgDaemon re-queueing failed request 0x%p code 0x%x",
 156                      rp, code);
 157             lock_ObtainWrite(&cm_daemonLock);
 158             cm_bkgQueueCount++;
 159             osi_QAddT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **)&cm_bkgListEndp, &rp->q);
 160             break;
 161         case 0:  /* success */
 162         default: /* other error */
 163             if (code == 0)
 164                 osi_Log1(afsd_logp,"cm_BkgDaemon SUCCESS: request 0x%p", rp);
 165             else
 166                 osi_Log2(afsd_logp,"cm_BkgDaemon FAILED: request dropped 0x%p code 0x%x",
 167                      rp, code);
 168             cm_ReleaseUser(rp->userp);
 169             cm_ReleaseSCache(rp->scp);
 170             free(rp);
 171             lock_ObtainWrite(&cm_daemonLock);
 172         }
 173     }
 174     lock_ReleaseWrite(&cm_daemonLock);
 175
 176     thrd_SetEvent(cm_BkgDaemon_ShutdownEvent[daemonID]);
 177 }
 178
 179 void cm_QueueBKGRequest(cm_scache_t *scp, cm_bkgProc_t *procp, afs_uint32 p1, afs_uint32 p2, afs_uint32 p3, afs_uint32 p4,
 180         cm_user_t *userp)
 181 {
 182     cm_bkgRequest_t *rp;
 183
 184     rp = malloc(sizeof(*rp));
 185     memset(rp, 0, sizeof(*rp));
 186
 187     cm_HoldSCache(scp);
 188     rp->scp = scp;
 189     cm_HoldUser(userp);
 190     rp->userp = userp;
 191     rp->procp = procp;
 192     rp->p1 = p1;
 193     rp->p2 = p2;
 194     rp->p3 = p3;
 195     rp->p4 = p4;
 196
 197     lock_ObtainWrite(&cm_daemonLock);
 198     cm_bkgQueueCount++;
 199     osi_QAdd((osi_queue_t **) &cm_bkgListp, &rp->q);
 200     if (!cm_bkgListEndp)
 201         cm_bkgListEndp = rp;
 202     lock_ReleaseWrite(&cm_daemonLock);
 203
 204     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 205 }
 206
 207 static int
 208 IsWindowsFirewallPresent(void)
 209 {
 210     SC_HANDLE scm;
 211     SC_HANDLE svc;
 212     BOOLEAN flag;
 213     BOOLEAN result = FALSE;
 214     LPQUERY_SERVICE_CONFIG pConfig = NULL;
 215     DWORD BufSize;
 216     LONG status;
 217
 218     /* Open services manager */
 219     scm = OpenSCManager(NULL, NULL, GENERIC_READ);
 220     if (!scm) return FALSE;
 221
 222     /* Open Windows Firewall service */
 223     svc = OpenService(scm, "MpsSvc", SERVICE_QUERY_CONFIG);
 224     if (!svc) {
 225         afsi_log("MpsSvc Service could not be opened for query: 0x%x", GetLastError());
 226         svc = OpenService(scm, "SharedAccess", SERVICE_QUERY_CONFIG);
 227         if (!svc)
 228             afsi_log("SharedAccess Service could not be opened for query: 0x%x", GetLastError());
 229     }
 230     if (!svc)
 231         goto close_scm;
 232
 233     /* Query Windows Firewall service config, first just to get buffer size */
 234     /* Expected to fail, so don't test return value */
 235     (void) QueryServiceConfig(svc, NULL, 0, &BufSize);
 236     status = GetLastError();
 237     if (status != ERROR_INSUFFICIENT_BUFFER)
 238         goto close_svc;
 239
 240     /* Allocate buffer */
 241     pConfig = (LPQUERY_SERVICE_CONFIG)GlobalAlloc(GMEM_FIXED,BufSize);
 242     if (!pConfig)
 243         goto close_svc;
 244
 245     /* Query Windows Firewall service config, this time for real */
 246     flag = QueryServiceConfig(svc, pConfig, BufSize, &BufSize);
 247     if (!flag) {
 248         afsi_log("QueryServiceConfig failed: 0x%x", GetLastError());
 249         goto free_pConfig;
 250     }
 251
 252     /* Is it autostart? */
 253     afsi_log("AutoStart 0x%x", pConfig->dwStartType);
 254     if (pConfig->dwStartType < SERVICE_DEMAND_START)
 255         result = TRUE;
 256
 257   free_pConfig:
 258     GlobalFree(pConfig);
 259   close_svc:
 260     CloseServiceHandle(svc);
 261   close_scm:
 262     CloseServiceHandle(scm);
 263
 264     return result;
 265 }
 266
 267 void
 268 cm_DaemonCheckInit(void)
 269 {
 270     HKEY parmKey;
 271     DWORD dummyLen;
 272     DWORD dummy;
 273     DWORD code;
 274
 275     code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
 276                          0, KEY_QUERY_VALUE, &parmKey);
 277     if (code)
 278         return;
 279
 280     dummyLen = sizeof(DWORD);
 281     code = RegQueryValueEx(parmKey, "daemonCheckDownInterval", NULL, NULL,
 282                             (BYTE *) &dummy, &dummyLen);
 283     if (code == ERROR_SUCCESS && dummy)
 284         cm_daemonCheckDownInterval = dummy;
 285     afsi_log("daemonCheckDownInterval is %d", cm_daemonCheckDownInterval);
 286
 287     dummyLen = sizeof(DWORD);
 288     code = RegQueryValueEx(parmKey, "daemonCheckUpInterval", NULL, NULL,
 289                             (BYTE *) &dummy, &dummyLen);
 290     if (code == ERROR_SUCCESS && dummy)
 291         cm_daemonCheckUpInterval = dummy;
 292     afsi_log("daemonCheckUpInterval is %d", cm_daemonCheckUpInterval);
 293
 294     dummyLen = sizeof(DWORD);
 295     code = RegQueryValueEx(parmKey, "daemonCheckVolInterval", NULL, NULL,
 296                             (BYTE *) &dummy, &dummyLen);
 297     if (code == ERROR_SUCCESS && dummy)
 298         cm_daemonCheckVolInterval = dummy;
 299     afsi_log("daemonCheckVolInterval is %d", cm_daemonCheckVolInterval);
 300
 301     dummyLen = sizeof(DWORD);
 302     code = RegQueryValueEx(parmKey, "daemonCheckCBInterval", NULL, NULL,
 303                             (BYTE *) &dummy, &dummyLen);
 304     if (code == ERROR_SUCCESS && dummy)
 305         cm_daemonCheckCBInterval = dummy;
 306     afsi_log("daemonCheckCBInterval is %d", cm_daemonCheckCBInterval);
 307
 308     dummyLen = sizeof(DWORD);
 309     code = RegQueryValueEx(parmKey, "daemonCheckVolCBInterval", NULL, NULL,
 310                             (BYTE *) &dummy, &dummyLen);
 311     if (code == ERROR_SUCCESS && dummy)
 312         cm_daemonCheckVolCBInterval = dummy;
 313     afsi_log("daemonCheckVolCBInterval is %d", cm_daemonCheckVolCBInterval);
 314
 315     dummyLen = sizeof(DWORD);
 316     code = RegQueryValueEx(parmKey, "daemonCheckLockInterval", NULL, NULL,
 317                             (BYTE *) &dummy, &dummyLen);
 318     if (code == ERROR_SUCCESS && dummy)
 319         cm_daemonCheckLockInterval = dummy;
 320     afsi_log("daemonCheckLockInterval is %d", cm_daemonCheckLockInterval);
 321
 322     dummyLen = sizeof(DWORD);
 323     code = RegQueryValueEx(parmKey, "daemonCheckTokenInterval", NULL, NULL,
 324                             (BYTE *) &dummy, &dummyLen);
 325     if (code == ERROR_SUCCESS && dummy)
 326         cm_daemonTokenCheckInterval = dummy;
 327     afsi_log("daemonCheckTokenInterval is %d", cm_daemonTokenCheckInterval);
 328
 329     dummyLen = sizeof(DWORD);
 330     code = RegQueryValueEx(parmKey, "daemonCheckOfflineVolInterval", NULL, NULL,
 331                             (BYTE *) &dummy, &dummyLen);
 332     if (code == ERROR_SUCCESS && dummy)
 333         cm_daemonCheckOfflineVolInterval = dummy;
 334     afsi_log("daemonCheckOfflineVolInterval is %d", cm_daemonCheckOfflineVolInterval);
 335
 336     dummyLen = sizeof(DWORD);
 337     code = RegQueryValueEx(parmKey, "daemonPerformanceTuningInterval", NULL, NULL,
 338                             (BYTE *) &dummy, &dummyLen);
 339     if (code == ERROR_SUCCESS)
 340         cm_daemonPerformanceTuningInterval = dummy;
 341     afsi_log("daemonPerformanceTuningInterval is %d", cm_daemonPerformanceTuningInterval);
 342
 343     RegCloseKey(parmKey);
 344
 345     if (cm_daemonPerformanceTuningInterval)
 346         cm_PerformanceTuningInit();
 347 }
 348
 349 /* periodic check daemon */
 350 void cm_Daemon(long parm)
 351 {
 352     time_t now;
 353     time_t lastLockCheck;
 354     time_t lastVolCheck;
 355     time_t lastCBExpirationCheck;
 356     time_t lastVolCBRenewalCheck;
 357     time_t lastDownServerCheck;
 358     time_t lastUpServerCheck;
 359     time_t lastTokenCacheCheck;
 360     time_t lastBusyVolCheck;
 361     time_t lastPerformanceCheck;
 362     char thostName[200];
 363     unsigned long code;
 364     struct hostent *thp;
 365     HMODULE hHookDll;
 366     char * name = "cm_Daemon_ShutdownEvent";
 367     int configureFirewall = IsWindowsFirewallPresent();
 368     int bAddrChangeCheck = 0;
 369
 370     cm_Daemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 371     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 372         afsi_log("Event Object Already Exists: %s", name);
 373
 374     if (!configureFirewall) {
 375         afsi_log("No Windows Firewall detected");
 376     }
 377
 378     /* ping all file servers, up or down, with unauthenticated connection,
 379      * to find out whether we have all our callbacks from the server still.
 380      * Also, ping down VLDBs.
 381      */
 382     /*
 383      * Seed the random number generator with our own address, so that
 384      * clients starting at the same time don't all do vol checks at the
 385      * same time.
 386      */
 387     gethostname(thostName, sizeof(thostName));
 388     thp = gethostbyname(thostName);
 389     if (thp == NULL)    /* In djgpp, gethostname returns the netbios
 390                            name of the machine.  gethostbyname will fail
 391                            looking this up if it differs from DNS name. */
 392         code = 0;
 393     else
 394         memcpy(&code, thp->h_addr_list[0], 4);
 395
 396     srand(ntohl(code));
 397
 398     cm_DaemonCheckInit();
 399
 400     now = osi_Time();
 401     lastVolCheck = now - cm_daemonCheckVolInterval/2 + (rand() % cm_daemonCheckVolInterval);
 402     lastCBExpirationCheck = now - cm_daemonCheckCBInterval/2 + (rand() % cm_daemonCheckCBInterval);
 403     if (cm_daemonCheckVolCBInterval)
 404         lastVolCBRenewalCheck = now - cm_daemonCheckVolCBInterval/2 + (rand() % cm_daemonCheckVolCBInterval);
 405     lastLockCheck = now - cm_daemonCheckLockInterval/2 + (rand() % cm_daemonCheckLockInterval);
 406     lastDownServerCheck = now - cm_daemonCheckDownInterval/2 + (rand() % cm_daemonCheckDownInterval);
 407     lastUpServerCheck = now - cm_daemonCheckUpInterval/2 + (rand() % cm_daemonCheckUpInterval);
 408     lastTokenCacheCheck = now - cm_daemonTokenCheckInterval/2 + (rand() % cm_daemonTokenCheckInterval);
 409     lastBusyVolCheck = now - cm_daemonCheckOfflineVolInterval/2 * (rand() % cm_daemonCheckOfflineVolInterval);
 410     if (cm_daemonPerformanceTuningInterval)
 411         lastPerformanceCheck = now - cm_daemonPerformanceTuningInterval/2 * (rand() % cm_daemonPerformanceTuningInterval);
 412
 413     while (daemon_ShutdownFlag == 0) {
 414         if (powerStateSuspended) {
 415             Sleep(1000);
 416             continue;
 417         }
 418         /* check to see if the listener threads halted due to network
 419          * disconnect or other issues.  If so, attempt to restart them.
 420          */
 421         smb_RestartListeners(0);
 422
 423         if (daemon_ShutdownFlag == 1)
 424             break;
 425
 426         if (configureFirewall) {
 427             /* Open Microsoft Firewall to allow in port 7001 */
 428             switch (icf_CheckAndAddAFSPorts(AFS_PORTSET_CLIENT)) {
 429             case 0:
 430                 afsi_log("Windows Firewall Configuration succeeded");
 431                 configureFirewall = 0;
 432                 break;
 433             case 1:
 434                 afsi_log("Invalid Windows Firewall Port Set");
 435                 break;
 436             case 2:
 437                 afsi_log("Unable to open Windows Firewall Profile");
 438                 break;
 439             case 3:
 440                 afsi_log("Unable to create/modify Windows Firewall Port entries");
 441                 break;
 442             default:
 443                 afsi_log("Unknown Windows Firewall Configuration error");
 444             }
 445         }
 446
 447         /* find out what time it is */
 448         now = osi_Time();
 449
 450         /* Determine whether an address change took place that we need to respond to */
 451         if (bAddrChangeCheck)
 452             bAddrChangeCheck = 0;
 453
 454         if (lastIPAddrChange != 0 && lastIPAddrChange + 2500 < now) {
 455             bAddrChangeCheck = 1;
 456             lastIPAddrChange = 0;
 457         }
 458
 459         /* check down servers */
 460         if ((bAddrChangeCheck || now > lastDownServerCheck + cm_daemonCheckDownInterval) &&
 461             daemon_ShutdownFlag == 0 &&
 462             powerStateSuspended == 0) {
 463             lastDownServerCheck = now;
 464             osi_Log0(afsd_logp, "cm_Daemon CheckDownServers");
 465             cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, NULL);
 466             if (daemon_ShutdownFlag == 1)
 467                 break;
 468             now = osi_Time();
 469         }
 470
 471         if (bAddrChangeCheck &&
 472             daemon_ShutdownFlag == 0 &&
 473             powerStateSuspended == 0)
 474             cm_ForceNewConnectionsAllServers();
 475
 476         /* check up servers */
 477         if ((bAddrChangeCheck || now > lastUpServerCheck + cm_daemonCheckUpInterval) &&
 478             daemon_ShutdownFlag == 0 &&
 479             powerStateSuspended == 0) {
 480             lastUpServerCheck = now;
 481             osi_Log0(afsd_logp, "cm_Daemon CheckUpServers");
 482             cm_CheckServers(CM_FLAG_CHECKUPSERVERS, NULL);
 483             if (daemon_ShutdownFlag == 1)
 484                 break;
 485             now = osi_Time();
 486         }
 487
 488         if (bAddrChangeCheck &&
 489             daemon_ShutdownFlag == 0 &&
 490             powerStateSuspended == 0) {
 491             smb_CheckVCs();
 492             cm_VolStatus_Network_Addr_Change();
 493         }
 494
 495         if (now > lastVolCheck + cm_daemonCheckVolInterval &&
 496             daemon_ShutdownFlag == 0 &&
 497             powerStateSuspended == 0) {
 498             lastVolCheck = now;
 499             cm_RefreshVolumes();
 500             if (daemon_ShutdownFlag == 1)
 501                 break;
 502             now = osi_Time();
 503         }
 504
 505         if (cm_daemonCheckVolCBInterval &&
 506             now > lastVolCBRenewalCheck + cm_daemonCheckVolCBInterval &&
 507             daemon_ShutdownFlag == 0 &&
 508             powerStateSuspended == 0) {
 509             lastVolCBRenewalCheck = now;
 510             cm_VolumeRenewROCallbacks();
 511             if (daemon_ShutdownFlag == 1)
 512                 break;
 513             now = osi_Time();
 514         }
 515
 516         if ((bAddrChangeCheck || now > lastBusyVolCheck + cm_daemonCheckOfflineVolInterval) &&
 517             daemon_ShutdownFlag == 0 &&
 518             powerStateSuspended == 0) {
 519             lastVolCheck = now;
 520             cm_CheckOfflineVolumes();
 521             if (daemon_ShutdownFlag == 1)
 522                 break;
 523             now = osi_Time();
 524         }
 525
 526         if (now > lastCBExpirationCheck + cm_daemonCheckCBInterval &&
 527             daemon_ShutdownFlag == 0 &&
 528             powerStateSuspended == 0) {
 529             lastCBExpirationCheck = now;
 530             cm_CheckCBExpiration();
 531             if (daemon_ShutdownFlag == 1)
 532                 break;
 533             now = osi_Time();
 534         }
 535
 536         if (now > lastLockCheck + cm_daemonCheckLockInterval &&
 537             daemon_ShutdownFlag == 0 &&
 538             powerStateSuspended == 0) {
 539             lastLockCheck = now;
 540             cm_CheckLocks();
 541             if (daemon_ShutdownFlag == 1)
 542                 break;
 543             now = osi_Time();
 544         }
 545
 546         if (now > lastTokenCacheCheck + cm_daemonTokenCheckInterval &&
 547             daemon_ShutdownFlag == 0 &&
 548             powerStateSuspended == 0) {
 549             lastTokenCacheCheck = now;
 550             cm_CheckTokenCache(now);
 551             if (daemon_ShutdownFlag == 1)
 552                 break;
 553             now = osi_Time();
 554         }
 555
 556         /* allow an exit to be called prior to stopping the service */
 557         hHookDll = cm_LoadAfsdHookLib();
 558         if (hHookDll)
 559         {
 560             BOOL hookRc = TRUE;
 561             AfsdDaemonHook daemonHook = ( AfsdDaemonHook ) GetProcAddress(hHookDll, AFSD_DAEMON_HOOK);
 562             if (daemonHook)
 563             {
 564                 hookRc = daemonHook();
 565             }
 566             FreeLibrary(hHookDll);
 567             hHookDll = NULL;
 568
 569             if (hookRc == FALSE)
 570             {
 571                 SetEvent(WaitToTerminate);
 572             }
 573
 574             if (daemon_ShutdownFlag == 1) {
 575                 break;
 576             }
 577             now = osi_Time();
 578         }
 579
 580         if (cm_daemonPerformanceTuningInterval &&
 581             now > lastPerformanceCheck + cm_daemonPerformanceTuningInterval &&
 582             daemon_ShutdownFlag == 0 &&
 583             powerStateSuspended == 0) {
 584             lastPerformanceCheck = now;
 585             cm_PerformanceTuningCheck();
 586             if (daemon_ShutdownFlag == 1)
 587                 break;
 588             now = osi_Time();
 589         }
 590
 591         thrd_Sleep(10000);              /* sleep 10 seconds */
 592     }
 593     thrd_SetEvent(cm_Daemon_ShutdownEvent);
 594 }
 595
 596 void cm_DaemonShutdown(void)
 597 {
 598     int i;
 599     DWORD code;
 600
 601     daemon_ShutdownFlag = 1;
 602     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 603
 604     /* wait for shutdown */
 605     if (cm_Daemon_ShutdownEvent)
 606         code = thrd_WaitForSingleObject_Event(cm_Daemon_ShutdownEvent, INFINITE);
 607
 608     for ( i=0; i<cm_nDaemons; i++) {
 609         if (cm_BkgDaemon_ShutdownEvent[i])
 610             code = thrd_WaitForSingleObject_Event(cm_BkgDaemon_ShutdownEvent[i], INFINITE);
 611     }
 612
 613     if (cm_IPAddrDaemon_ShutdownEvent)
 614         code = thrd_WaitForSingleObject_Event(cm_IPAddrDaemon_ShutdownEvent, INFINITE);
 615 }
 616
 617 void cm_InitDaemon(int nDaemons)
 618 {
 619     static osi_once_t once;
 620     long pid;
 621     thread_t phandle;
 622     int i;
 623
 624     cm_nDaemons = (nDaemons > CM_MAX_DAEMONS) ? CM_MAX_DAEMONS : nDaemons;
 625
 626     if (osi_Once(&once)) {
 627         lock_InitializeRWLock(&cm_daemonLock, "cm_daemonLock",
 628                                LOCK_HIERARCHY_DAEMON_GLOBAL);
 629         osi_EndOnce(&once);
 630
 631         /* creating IP Address Change monitor daemon */
 632         phandle = thrd_Create((SecurityAttrib) 0, 0,
 633                                (ThreadFunc) cm_IpAddrDaemon, 0, 0, &pid, "cm_IpAddrDaemon");
 634         osi_assertx(phandle != NULL, "cm_IpAddrDaemon thread creation failure");
 635         thrd_CloseHandle(phandle);
 636
 637         /* creating pinging daemon */
 638         phandle = thrd_Create((SecurityAttrib) 0, 0,
 639                                (ThreadFunc) cm_Daemon, 0, 0, &pid, "cm_Daemon");
 640         osi_assertx(phandle != NULL, "cm_Daemon thread creation failure");
 641         thrd_CloseHandle(phandle);
 642
 643         for(i=0; i < cm_nDaemons; i++) {
 644             phandle = thrd_Create((SecurityAttrib) 0, 0,
 645                                    (ThreadFunc) cm_BkgDaemon, (LPVOID)i, 0, &pid,
 646                                    "cm_BkgDaemon");
 647             osi_assertx(phandle != NULL, "cm_BkgDaemon thread creation failure");
 648             thrd_CloseHandle(phandle);
 649         }
 650     }
 651 }