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 long cm_daemonRankServerInterval = 600;
  39
  40 osi_rwlock_t cm_daemonLock;
  41
  42 long cm_bkgQueueCount;          /* # of queued requests */
  43
  44 int cm_bkgWaitingForCount;      /* true if someone's waiting for cm_bkgQueueCount to drop */
  45
  46 cm_bkgRequest_t *cm_bkgListp;           /* first elt in the list of requests */
  47 cm_bkgRequest_t *cm_bkgListEndp;        /* last elt in the list of requests */
  48
  49 extern int powerStateSuspended;
  50 int daemon_ShutdownFlag = 0;
  51 static int cm_nDaemons = 0;
  52 static time_t lastIPAddrChange = 0;
  53
  54 static EVENT_HANDLE cm_Daemon_ShutdownEvent = NULL;
  55 static EVENT_HANDLE cm_IPAddrDaemon_ShutdownEvent = NULL;
  56 static EVENT_HANDLE cm_BkgDaemon_ShutdownEvent[CM_MAX_DAEMONS] =
  57        {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
  58
  59 void cm_IpAddrDaemon(long parm)
  60 {
  61     extern void smb_CheckVCs(void);
  62     char * name = "cm_IPAddrDaemon_ShutdownEvent";
  63
  64     cm_IPAddrDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
  65     if ( GetLastError() == ERROR_ALREADY_EXISTS )
  66         afsi_log("Event Object Already Exists: %s", name);
  67
  68     rx_StartClientThread();
  69
  70     while (daemon_ShutdownFlag == 0) {
  71         DWORD Result;
  72
  73         thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  74         Result = NotifyAddrChange(NULL,NULL);
  75         if (Result == NO_ERROR && daemon_ShutdownFlag == 0) {
  76             lastIPAddrChange = osi_Time();
  77             smb_SetLanAdapterChangeDetected();
  78             cm_SetLanAdapterChangeDetected();
  79             thrd_ResetEvent(cm_IPAddrDaemon_ShutdownEvent);
  80         }
  81     }
  82
  83     thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  84 }
  85
  86 void cm_BkgDaemon(void * parm)
  87 {
  88     cm_bkgRequest_t *rp;
  89     afs_int32 code;
  90     char name[32] = "";
  91     long daemonID = (long)parm;
  92
  93     snprintf(name, sizeof(name), "cm_BkgDaemon_ShutdownEvent%d", daemonID);
  94
  95     cm_BkgDaemon_ShutdownEvent[daemonID] = thrd_CreateEvent(NULL, FALSE, FALSE, name);
  96     if ( GetLastError() == ERROR_ALREADY_EXISTS )
  97         afsi_log("Event Object Already Exists: %s", name);
  98
  99     rx_StartClientThread();
 100
 101     lock_ObtainWrite(&cm_daemonLock);
 102     while (daemon_ShutdownFlag == 0) {
 103         if (powerStateSuspended) {
 104             Sleep(1000);
 105             continue;
 106         }
 107         if (!cm_bkgListEndp) {
 108             osi_SleepW((LONG_PTR)&cm_bkgListp, &cm_daemonLock);
 109             lock_ObtainWrite(&cm_daemonLock);
 110             continue;
 111         }
 112
 113         /* we found a request */
 114         for (rp = cm_bkgListEndp; rp; rp = (cm_bkgRequest_t *) osi_QPrev(&rp->q))
 115         {
 116             if (cm_ServerAvailable(&rp->scp->fid, rp->userp) &&
 117                 !(rp->scp->flags & CM_SCACHEFLAG_DATASTORING))
 118                 break;
 119         }
 120         if (rp == NULL) {
 121             /* we couldn't find a request that we could process at the current time */
 122             lock_ReleaseWrite(&cm_daemonLock);
 123             Sleep(1000);
 124             lock_ObtainWrite(&cm_daemonLock);
 125             continue;
 126         }
 127
 128         osi_QRemoveHT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **) &cm_bkgListEndp, &rp->q);
 129         osi_assertx(cm_bkgQueueCount-- > 0, "cm_bkgQueueCount 0");
 130         lock_ReleaseWrite(&cm_daemonLock);
 131
 132         osi_Log1(afsd_logp,"cm_BkgDaemon processing request 0x%p", rp);
 133
 134 #ifdef DEBUG_REFCOUNT
 135         osi_Log2(afsd_logp,"cm_BkgDaemon (before) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 136 #endif
 137         code = (*rp->procp)(rp->scp, rp->p1, rp->p2, rp->p3, rp->p4, rp->userp);
 138 #ifdef DEBUG_REFCOUNT
 139         osi_Log2(afsd_logp,"cm_BkgDaemon (after) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 140 #endif
 141
 142         /*
 143          * Keep the following list synchronized with the
 144          * error code list in cm_BkgStore.
 145          * cm_SyncOpDone(CM_SCACHESYNC_ASYNCSTORE) will be called there unless
 146          * one of these errors has occurred.
 147          */
 148         switch ( code ) {
 149         case CM_ERROR_TIMEDOUT: /* or server restarting */
 150         case CM_ERROR_RETRY:
 151         case CM_ERROR_WOULDBLOCK:
 152         case CM_ERROR_ALLBUSY:
 153         case CM_ERROR_ALLDOWN:
 154         case CM_ERROR_ALLOFFLINE:
 155         case CM_ERROR_PARTIALWRITE:
 156             osi_Log2(afsd_logp,"cm_BkgDaemon re-queueing failed request 0x%p code 0x%x",
 157                      rp, code);
 158             lock_ObtainWrite(&cm_daemonLock);
 159             cm_bkgQueueCount++;
 160             osi_QAddT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **)&cm_bkgListEndp, &rp->q);
 161             break;
 162         case 0:  /* success */
 163         default: /* other error */
 164             if (code == 0)
 165                 osi_Log1(afsd_logp,"cm_BkgDaemon SUCCESS: request 0x%p", rp);
 166             else
 167                 osi_Log2(afsd_logp,"cm_BkgDaemon FAILED: request dropped 0x%p code 0x%x",
 168                      rp, code);
 169             cm_ReleaseUser(rp->userp);
 170             cm_ReleaseSCache(rp->scp);
 171             free(rp);
 172             lock_ObtainWrite(&cm_daemonLock);
 173         }
 174     }
 175     lock_ReleaseWrite(&cm_daemonLock);
 176
 177     thrd_SetEvent(cm_BkgDaemon_ShutdownEvent[daemonID]);
 178 }
 179
 180 void cm_QueueBKGRequest(cm_scache_t *scp, cm_bkgProc_t *procp, afs_uint32 p1, afs_uint32 p2, afs_uint32 p3, afs_uint32 p4,
 181         cm_user_t *userp)
 182 {
 183     cm_bkgRequest_t *rp;
 184
 185     rp = malloc(sizeof(*rp));
 186     memset(rp, 0, sizeof(*rp));
 187
 188     cm_HoldSCache(scp);
 189     rp->scp = scp;
 190     cm_HoldUser(userp);
 191     rp->userp = userp;
 192     rp->procp = procp;
 193     rp->p1 = p1;
 194     rp->p2 = p2;
 195     rp->p3 = p3;
 196     rp->p4 = p4;
 197
 198     lock_ObtainWrite(&cm_daemonLock);
 199     cm_bkgQueueCount++;
 200     osi_QAdd((osi_queue_t **) &cm_bkgListp, &rp->q);
 201     if (!cm_bkgListEndp)
 202         cm_bkgListEndp = rp;
 203     lock_ReleaseWrite(&cm_daemonLock);
 204
 205     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 206 }
 207
 208 static int
 209 IsWindowsFirewallPresent(void)
 210 {
 211     SC_HANDLE scm;
 212     SC_HANDLE svc;
 213     BOOLEAN flag;
 214     BOOLEAN result = FALSE;
 215     LPQUERY_SERVICE_CONFIG pConfig = NULL;
 216     DWORD BufSize;
 217     LONG status;
 218
 219     /* Open services manager */
 220     scm = OpenSCManager(NULL, NULL, GENERIC_READ);
 221     if (!scm) return FALSE;
 222
 223     /* Open Windows Firewall service */
 224     svc = OpenService(scm, "MpsSvc", SERVICE_QUERY_CONFIG);
 225     if (!svc) {
 226         afsi_log("MpsSvc Service could not be opened for query: 0x%x", GetLastError());
 227         svc = OpenService(scm, "SharedAccess", SERVICE_QUERY_CONFIG);
 228         if (!svc)
 229             afsi_log("SharedAccess Service could not be opened for query: 0x%x", GetLastError());
 230     }
 231     if (!svc)
 232         goto close_scm;
 233
 234     /* Query Windows Firewall service config, first just to get buffer size */
 235     /* Expected to fail, so don't test return value */
 236     (void) QueryServiceConfig(svc, NULL, 0, &BufSize);
 237     status = GetLastError();
 238     if (status != ERROR_INSUFFICIENT_BUFFER)
 239         goto close_svc;
 240
 241     /* Allocate buffer */
 242     pConfig = (LPQUERY_SERVICE_CONFIG)GlobalAlloc(GMEM_FIXED,BufSize);
 243     if (!pConfig)
 244         goto close_svc;
 245
 246     /* Query Windows Firewall service config, this time for real */
 247     flag = QueryServiceConfig(svc, pConfig, BufSize, &BufSize);
 248     if (!flag) {
 249         afsi_log("QueryServiceConfig failed: 0x%x", GetLastError());
 250         goto free_pConfig;
 251     }
 252
 253     /* Is it autostart? */
 254     afsi_log("AutoStart 0x%x", pConfig->dwStartType);
 255     if (pConfig->dwStartType < SERVICE_DEMAND_START)
 256         result = TRUE;
 257
 258   free_pConfig:
 259     GlobalFree(pConfig);
 260   close_svc:
 261     CloseServiceHandle(svc);
 262   close_scm:
 263     CloseServiceHandle(scm);
 264
 265     return result;
 266 }
 267
 268 void
 269 cm_DaemonCheckInit(void)
 270 {
 271     HKEY parmKey;
 272     DWORD dummyLen;
 273     DWORD dummy;
 274     DWORD code;
 275
 276     code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
 277                          0, KEY_QUERY_VALUE, &parmKey);
 278     if (code)
 279         return;
 280
 281     dummyLen = sizeof(DWORD);
 282     code = RegQueryValueEx(parmKey, "daemonCheckDownInterval", NULL, NULL,
 283                             (BYTE *) &dummy, &dummyLen);
 284     if (code == ERROR_SUCCESS && dummy)
 285         cm_daemonCheckDownInterval = dummy;
 286     afsi_log("daemonCheckDownInterval is %d", cm_daemonCheckDownInterval);
 287
 288     dummyLen = sizeof(DWORD);
 289     code = RegQueryValueEx(parmKey, "daemonCheckUpInterval", NULL, NULL,
 290                             (BYTE *) &dummy, &dummyLen);
 291     if (code == ERROR_SUCCESS && dummy)
 292         cm_daemonCheckUpInterval = dummy;
 293     afsi_log("daemonCheckUpInterval is %d", cm_daemonCheckUpInterval);
 294
 295     dummyLen = sizeof(DWORD);
 296     code = RegQueryValueEx(parmKey, "daemonCheckVolInterval", NULL, NULL,
 297                             (BYTE *) &dummy, &dummyLen);
 298     if (code == ERROR_SUCCESS && dummy)
 299         cm_daemonCheckVolInterval = dummy;
 300     afsi_log("daemonCheckVolInterval is %d", cm_daemonCheckVolInterval);
 301
 302     dummyLen = sizeof(DWORD);
 303     code = RegQueryValueEx(parmKey, "daemonCheckCBInterval", NULL, NULL,
 304                             (BYTE *) &dummy, &dummyLen);
 305     if (code == ERROR_SUCCESS && dummy)
 306         cm_daemonCheckCBInterval = dummy;
 307     afsi_log("daemonCheckCBInterval is %d", cm_daemonCheckCBInterval);
 308
 309     dummyLen = sizeof(DWORD);
 310     code = RegQueryValueEx(parmKey, "daemonCheckVolCBInterval", NULL, NULL,
 311                             (BYTE *) &dummy, &dummyLen);
 312     if (code == ERROR_SUCCESS && dummy)
 313         cm_daemonCheckVolCBInterval = dummy;
 314     afsi_log("daemonCheckVolCBInterval is %d", cm_daemonCheckVolCBInterval);
 315
 316     dummyLen = sizeof(DWORD);
 317     code = RegQueryValueEx(parmKey, "daemonCheckLockInterval", NULL, NULL,
 318                             (BYTE *) &dummy, &dummyLen);
 319     if (code == ERROR_SUCCESS && dummy)
 320         cm_daemonCheckLockInterval = dummy;
 321     afsi_log("daemonCheckLockInterval is %d", cm_daemonCheckLockInterval);
 322
 323     dummyLen = sizeof(DWORD);
 324     code = RegQueryValueEx(parmKey, "daemonCheckTokenInterval", NULL, NULL,
 325                             (BYTE *) &dummy, &dummyLen);
 326     if (code == ERROR_SUCCESS && dummy)
 327         cm_daemonTokenCheckInterval = dummy;
 328     afsi_log("daemonCheckTokenInterval is %d", cm_daemonTokenCheckInterval);
 329
 330     dummyLen = sizeof(DWORD);
 331     code = RegQueryValueEx(parmKey, "daemonCheckOfflineVolInterval", NULL, NULL,
 332                             (BYTE *) &dummy, &dummyLen);
 333     if (code == ERROR_SUCCESS && dummy)
 334         cm_daemonCheckOfflineVolInterval = dummy;
 335     afsi_log("daemonCheckOfflineVolInterval is %d", cm_daemonCheckOfflineVolInterval);
 336
 337     dummyLen = sizeof(DWORD);
 338     code = RegQueryValueEx(parmKey, "daemonPerformanceTuningInterval", NULL, NULL,
 339                             (BYTE *) &dummy, &dummyLen);
 340     dummyLen = sizeof(DWORD);
 341     code = RegQueryValueEx(parmKey, "daemonRankServerInterval", NULL, NULL,
 342                             (BYTE *) &dummy, &dummyLen);
 343     if (code == ERROR_SUCCESS && dummy)
 344         cm_daemonRankServerInterval = dummy;
 345     afsi_log("daemonRankServerInterval is %d", cm_daemonRankServerInterval);
 346
 347     if (code == ERROR_SUCCESS)
 348         cm_daemonPerformanceTuningInterval = dummy;
 349     afsi_log("daemonPerformanceTuningInterval is %d", cm_daemonPerformanceTuningInterval);
 350
 351     RegCloseKey(parmKey);
 352
 353     if (cm_daemonPerformanceTuningInterval)
 354         cm_PerformanceTuningInit();
 355 }
 356
 357 /* periodic check daemon */
 358 void cm_Daemon(long parm)
 359 {
 360     time_t now;
 361     time_t lastLockCheck;
 362     time_t lastVolCheck;
 363     time_t lastCBExpirationCheck;
 364     time_t lastVolCBRenewalCheck;
 365     time_t lastDownServerCheck;
 366     time_t lastUpServerCheck;
 367     time_t lastTokenCacheCheck;
 368     time_t lastBusyVolCheck;
 369     time_t lastPerformanceCheck;
 370     time_t lastServerRankCheck;
 371     char thostName[200];
 372     unsigned long code;
 373     struct hostent *thp;
 374     HMODULE hHookDll;
 375     char * name = "cm_Daemon_ShutdownEvent";
 376     int configureFirewall = IsWindowsFirewallPresent();
 377     int bAddrChangeCheck = 0;
 378
 379     cm_Daemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 380     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 381         afsi_log("Event Object Already Exists: %s", name);
 382
 383     if (!configureFirewall) {
 384         afsi_log("No Windows Firewall detected");
 385     }
 386
 387     /* ping all file servers, up or down, with unauthenticated connection,
 388      * to find out whether we have all our callbacks from the server still.
 389      * Also, ping down VLDBs.
 390      */
 391     /*
 392      * Seed the random number generator with our own address, so that
 393      * clients starting at the same time don't all do vol checks at the
 394      * same time.
 395      */
 396     gethostname(thostName, sizeof(thostName));
 397     thp = gethostbyname(thostName);
 398     if (thp == NULL)    /* In djgpp, gethostname returns the netbios
 399                            name of the machine.  gethostbyname will fail
 400                            looking this up if it differs from DNS name. */
 401         code = 0;
 402     else
 403         memcpy(&code, thp->h_addr_list[0], 4);
 404
 405     srand(ntohl(code));
 406
 407     cm_DaemonCheckInit();
 408
 409     now = osi_Time();
 410     lastVolCheck = now - cm_daemonCheckVolInterval/2 + (rand() % cm_daemonCheckVolInterval);
 411     lastCBExpirationCheck = now - cm_daemonCheckCBInterval/2 + (rand() % cm_daemonCheckCBInterval);
 412     if (cm_daemonCheckVolCBInterval)
 413         lastVolCBRenewalCheck = now - cm_daemonCheckVolCBInterval/2 + (rand() % cm_daemonCheckVolCBInterval);
 414     lastLockCheck = now - cm_daemonCheckLockInterval/2 + (rand() % cm_daemonCheckLockInterval);
 415     lastDownServerCheck = now - cm_daemonCheckDownInterval/2 + (rand() % cm_daemonCheckDownInterval);
 416     lastUpServerCheck = now - cm_daemonCheckUpInterval/2 + (rand() % cm_daemonCheckUpInterval);
 417     lastTokenCacheCheck = now - cm_daemonTokenCheckInterval/2 + (rand() % cm_daemonTokenCheckInterval);
 418     lastBusyVolCheck = now - cm_daemonCheckOfflineVolInterval/2 * (rand() % cm_daemonCheckOfflineVolInterval);
 419     if (cm_daemonPerformanceTuningInterval)
 420         lastPerformanceCheck = now - cm_daemonPerformanceTuningInterval/2 * (rand() % cm_daemonPerformanceTuningInterval);
 421     lastServerRankCheck = now - cm_daemonRankServerInterval/2 * (rand() % cm_daemonRankServerInterval);
 422
 423     while (daemon_ShutdownFlag == 0) {
 424         if (powerStateSuspended) {
 425             Sleep(1000);
 426             continue;
 427         }
 428         /* check to see if the listener threads halted due to network
 429          * disconnect or other issues.  If so, attempt to restart them.
 430          */
 431         smb_RestartListeners(0);
 432
 433         if (daemon_ShutdownFlag == 1)
 434             break;
 435
 436         if (configureFirewall) {
 437             /* Open Microsoft Firewall to allow in port 7001 */
 438             switch (icf_CheckAndAddAFSPorts(AFS_PORTSET_CLIENT)) {
 439             case 0:
 440                 afsi_log("Windows Firewall Configuration succeeded");
 441                 configureFirewall = 0;
 442                 break;
 443             case 1:
 444                 afsi_log("Invalid Windows Firewall Port Set");
 445                 break;
 446             case 2:
 447                 afsi_log("Unable to open Windows Firewall Profile");
 448                 break;
 449             case 3:
 450                 afsi_log("Unable to create/modify Windows Firewall Port entries");
 451                 break;
 452             default:
 453                 afsi_log("Unknown Windows Firewall Configuration error");
 454             }
 455         }
 456
 457         /* find out what time it is */
 458         now = osi_Time();
 459
 460         /* Determine whether an address change took place that we need to respond to */
 461         if (bAddrChangeCheck)
 462             bAddrChangeCheck = 0;
 463
 464         if (lastIPAddrChange != 0 && lastIPAddrChange + 2500 < now) {
 465             bAddrChangeCheck = 1;
 466             lastIPAddrChange = 0;
 467         }
 468
 469         /* check down servers */
 470         if ((bAddrChangeCheck || now > lastDownServerCheck + cm_daemonCheckDownInterval) &&
 471             daemon_ShutdownFlag == 0 &&
 472             powerStateSuspended == 0) {
 473             lastDownServerCheck = now;
 474             osi_Log0(afsd_logp, "cm_Daemon CheckDownServers");
 475             cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, NULL);
 476             if (daemon_ShutdownFlag == 1)
 477                 break;
 478             now = osi_Time();
 479         }
 480
 481         if (bAddrChangeCheck &&
 482             daemon_ShutdownFlag == 0 &&
 483             powerStateSuspended == 0)
 484             cm_ForceNewConnectionsAllServers();
 485
 486         /* check up servers */
 487         if ((bAddrChangeCheck || now > lastUpServerCheck + cm_daemonCheckUpInterval) &&
 488             daemon_ShutdownFlag == 0 &&
 489             powerStateSuspended == 0) {
 490             lastUpServerCheck = now;
 491             osi_Log0(afsd_logp, "cm_Daemon CheckUpServers");
 492             cm_CheckServers(CM_FLAG_CHECKUPSERVERS, NULL);
 493             if (daemon_ShutdownFlag == 1)
 494                 break;
 495             now = osi_Time();
 496         }
 497
 498         if (bAddrChangeCheck &&
 499             daemon_ShutdownFlag == 0 &&
 500             powerStateSuspended == 0) {
 501             smb_CheckVCs();
 502             cm_VolStatus_Network_Addr_Change();
 503         }
 504
 505         if (now > lastVolCheck + cm_daemonCheckVolInterval &&
 506             daemon_ShutdownFlag == 0 &&
 507             powerStateSuspended == 0) {
 508             lastVolCheck = now;
 509             cm_RefreshVolumes();
 510             if (daemon_ShutdownFlag == 1)
 511                 break;
 512             now = osi_Time();
 513         }
 514
 515         /* Rank all up servers */
 516         if ((now > lastServerRankCheck + cm_daemonRankServerInterval) &&
 517             daemon_ShutdownFlag == 0 &&
 518             powerStateSuspended == 0) {
 519             lastServerRankCheck = now;
 520             osi_Log0(afsd_logp, "cm_Daemon RankServer");
 521             cm_RankUpServers();
 522             if(daemon_ShutdownFlag == 1)
 523                 break;
 524             now = osi_Time();
 525         }
 526
 527         if (cm_daemonCheckVolCBInterval &&
 528             now > lastVolCBRenewalCheck + cm_daemonCheckVolCBInterval &&
 529             daemon_ShutdownFlag == 0 &&
 530             powerStateSuspended == 0) {
 531             lastVolCBRenewalCheck = now;
 532             cm_VolumeRenewROCallbacks();
 533             if (daemon_ShutdownFlag == 1)
 534                 break;
 535             now = osi_Time();
 536         }
 537
 538         if ((bAddrChangeCheck || now > lastBusyVolCheck + cm_daemonCheckOfflineVolInterval) &&
 539             daemon_ShutdownFlag == 0 &&
 540             powerStateSuspended == 0) {
 541             lastVolCheck = now;
 542             cm_CheckOfflineVolumes();
 543             if (daemon_ShutdownFlag == 1)
 544                 break;
 545             now = osi_Time();
 546         }
 547
 548         if (now > lastCBExpirationCheck + cm_daemonCheckCBInterval &&
 549             daemon_ShutdownFlag == 0 &&
 550             powerStateSuspended == 0) {
 551             lastCBExpirationCheck = now;
 552             cm_CheckCBExpiration();
 553             if (daemon_ShutdownFlag == 1)
 554                 break;
 555             now = osi_Time();
 556         }
 557
 558         if (now > lastLockCheck + cm_daemonCheckLockInterval &&
 559             daemon_ShutdownFlag == 0 &&
 560             powerStateSuspended == 0) {
 561             lastLockCheck = now;
 562             cm_CheckLocks();
 563             if (daemon_ShutdownFlag == 1)
 564                 break;
 565             now = osi_Time();
 566         }
 567
 568         if (now > lastTokenCacheCheck + cm_daemonTokenCheckInterval &&
 569             daemon_ShutdownFlag == 0 &&
 570             powerStateSuspended == 0) {
 571             lastTokenCacheCheck = now;
 572             cm_CheckTokenCache(now);
 573             if (daemon_ShutdownFlag == 1)
 574                 break;
 575             now = osi_Time();
 576         }
 577
 578         /* allow an exit to be called prior to stopping the service */
 579         hHookDll = cm_LoadAfsdHookLib();
 580         if (hHookDll)
 581         {
 582             BOOL hookRc = TRUE;
 583             AfsdDaemonHook daemonHook = ( AfsdDaemonHook ) GetProcAddress(hHookDll, AFSD_DAEMON_HOOK);
 584             if (daemonHook)
 585             {
 586                 hookRc = daemonHook();
 587             }
 588             FreeLibrary(hHookDll);
 589             hHookDll = NULL;
 590
 591             if (hookRc == FALSE)
 592             {
 593                 SetEvent(WaitToTerminate);
 594             }
 595
 596             if (daemon_ShutdownFlag == 1) {
 597                 break;
 598             }
 599             now = osi_Time();
 600         }
 601
 602         if (cm_daemonPerformanceTuningInterval &&
 603             now > lastPerformanceCheck + cm_daemonPerformanceTuningInterval &&
 604             daemon_ShutdownFlag == 0 &&
 605             powerStateSuspended == 0) {
 606             lastPerformanceCheck = now;
 607             cm_PerformanceTuningCheck();
 608             if (daemon_ShutdownFlag == 1)
 609                 break;
 610             now = osi_Time();
 611         }
 612
 613         thrd_Sleep(10000);              /* sleep 10 seconds */
 614     }
 615     thrd_SetEvent(cm_Daemon_ShutdownEvent);
 616 }
 617
 618 void cm_DaemonShutdown(void)
 619 {
 620     int i;
 621     DWORD code;
 622
 623     daemon_ShutdownFlag = 1;
 624     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 625
 626     /* wait for shutdown */
 627     if (cm_Daemon_ShutdownEvent)
 628         code = thrd_WaitForSingleObject_Event(cm_Daemon_ShutdownEvent, INFINITE);
 629
 630     for ( i=0; i<cm_nDaemons; i++) {
 631         if (cm_BkgDaemon_ShutdownEvent[i])
 632             code = thrd_WaitForSingleObject_Event(cm_BkgDaemon_ShutdownEvent[i], INFINITE);
 633     }
 634
 635     if (cm_IPAddrDaemon_ShutdownEvent)
 636         code = thrd_WaitForSingleObject_Event(cm_IPAddrDaemon_ShutdownEvent, INFINITE);
 637 }
 638
 639 void cm_InitDaemon(int nDaemons)
 640 {
 641     static osi_once_t once;
 642     long pid;
 643     thread_t phandle;
 644     int i;
 645
 646     cm_nDaemons = (nDaemons > CM_MAX_DAEMONS) ? CM_MAX_DAEMONS : nDaemons;
 647
 648     if (osi_Once(&once)) {
 649         lock_InitializeRWLock(&cm_daemonLock, "cm_daemonLock",
 650                                LOCK_HIERARCHY_DAEMON_GLOBAL);
 651         osi_EndOnce(&once);
 652
 653         /* creating IP Address Change monitor daemon */
 654         phandle = thrd_Create((SecurityAttrib) 0, 0,
 655                                (ThreadFunc) cm_IpAddrDaemon, 0, 0, &pid, "cm_IpAddrDaemon");
 656         osi_assertx(phandle != NULL, "cm_IpAddrDaemon thread creation failure");
 657         thrd_CloseHandle(phandle);
 658
 659         /* creating pinging daemon */
 660         phandle = thrd_Create((SecurityAttrib) 0, 0,
 661                                (ThreadFunc) cm_Daemon, 0, 0, &pid, "cm_Daemon");
 662         osi_assertx(phandle != NULL, "cm_Daemon thread creation failure");
 663         thrd_CloseHandle(phandle);
 664
 665         for(i=0; i < cm_nDaemons; i++) {
 666             phandle = thrd_Create((SecurityAttrib) 0, 0,
 667                                    (ThreadFunc) cm_BkgDaemon, (LPVOID)i, 0, &pid,
 668                                    "cm_BkgDaemon");
 669             osi_assertx(phandle != NULL, "cm_BkgDaemon thread creation failure");
 670             thrd_CloseHandle(phandle);
 671         }
 672     }
 673 }