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 <afsconfig.h>
  11 #include <afs/param.h>
  12 #include <roken.h>
  13
  14 #include <afs/stds.h>
  15
  16 #include <windows.h>
  17 #include <winsock2.h>
  18 #include <iphlpapi.h>
  19 #include <stdlib.h>
  20 #include <malloc.h>
  21 #include <string.h>
  22
  23 #include "afsd.h"
  24 #include "smb.h"
  25
  26 #include <rx/rx.h>
  27 #include <rx/rx_prototypes.h>
  28 #include <WINNT/afsreg.h>
  29
  30 #include "afsicf.h"
  31
  32 /* in seconds */
  33 long cm_daemonCheckDownInterval  = 180;
  34 long cm_daemonCheckUpInterval    = 240;
  35 long cm_daemonCheckVolInterval   = 3600;
  36 long cm_daemonCheckCBInterval    = 60;
  37 long cm_daemonCheckVolCBInterval = 0;
  38 long cm_daemonCheckLockInterval  = 60;
  39 long cm_daemonTokenCheckInterval = 180;
  40 long cm_daemonCheckOfflineVolInterval = 600;
  41 long cm_daemonPerformanceTuningInterval = 0;
  42 long cm_daemonRankServerInterval = 600;
  43
  44 osi_rwlock_t cm_daemonLock;
  45
  46 long cm_bkgQueueCount;          /* # of queued requests */
  47
  48 int cm_bkgWaitingForCount;      /* true if someone's waiting for cm_bkgQueueCount to drop */
  49
  50 cm_bkgRequest_t *cm_bkgListp;           /* first elt in the list of requests */
  51 cm_bkgRequest_t *cm_bkgListEndp;        /* last elt in the list of requests */
  52
  53 extern int powerStateSuspended;
  54 int daemon_ShutdownFlag = 0;
  55 static int cm_nDaemons = 0;
  56 static time_t lastIPAddrChange = 0;
  57
  58 static EVENT_HANDLE cm_Daemon_ShutdownEvent = NULL;
  59 static EVENT_HANDLE cm_IPAddrDaemon_ShutdownEvent = NULL;
  60 static EVENT_HANDLE cm_BkgDaemon_ShutdownEvent[CM_MAX_DAEMONS] =
  61        {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
  62
  63 void cm_IpAddrDaemon(long parm)
  64 {
  65     extern void smb_CheckVCs(void);
  66     char * name = "cm_IPAddrDaemon_ShutdownEvent";
  67
  68     cm_IPAddrDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
  69     if ( GetLastError() == ERROR_ALREADY_EXISTS )
  70         afsi_log("Event Object Already Exists: %s", name);
  71
  72     rx_StartClientThread();
  73
  74     while (daemon_ShutdownFlag == 0) {
  75         DWORD Result;
  76
  77         thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  78         Result = NotifyAddrChange(NULL,NULL);
  79         if (Result == NO_ERROR && daemon_ShutdownFlag == 0) {
  80             lastIPAddrChange = osi_Time();
  81             smb_SetLanAdapterChangeDetected();
  82             cm_SetLanAdapterChangeDetected();
  83             thrd_ResetEvent(cm_IPAddrDaemon_ShutdownEvent);
  84         }
  85     }
  86
  87     thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  88 }
  89
  90 void cm_BkgDaemon(void * parm)
  91 {
  92     cm_bkgRequest_t *rp;
  93     afs_int32 code;
  94     char name[32] = "";
  95     long daemonID = (long)(LONG_PTR)parm;
  96
  97     snprintf(name, sizeof(name), "cm_BkgDaemon_ShutdownEvent%u", daemonID);
  98
  99     cm_BkgDaemon_ShutdownEvent[daemonID] = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 100     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 101         afsi_log("Event Object Already Exists: %s", name);
 102
 103     rx_StartClientThread();
 104
 105     lock_ObtainWrite(&cm_daemonLock);
 106     while (daemon_ShutdownFlag == 0) {
 107         if (powerStateSuspended) {
 108             Sleep(1000);
 109             continue;
 110         }
 111         if (!cm_bkgListEndp) {
 112             osi_SleepW((LONG_PTR)&cm_bkgListp, &cm_daemonLock);
 113             lock_ObtainWrite(&cm_daemonLock);
 114             continue;
 115         }
 116
 117         /* we found a request */
 118         for (rp = cm_bkgListEndp; rp; rp = (cm_bkgRequest_t *) osi_QPrev(&rp->q))
 119         {
 120             if (!(rp->scp->flags & CM_SCACHEFLAG_DATASTORING) &&
 121                 cm_ServerAvailable(&rp->scp->fid, rp->userp))
 122                 break;
 123         }
 124         if (rp == NULL) {
 125             /* we couldn't find a request that we could process at the current time */
 126             lock_ReleaseWrite(&cm_daemonLock);
 127             Sleep(1000);
 128             lock_ObtainWrite(&cm_daemonLock);
 129             continue;
 130         }
 131
 132         osi_QRemoveHT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **) &cm_bkgListEndp, &rp->q);
 133         osi_assertx(cm_bkgQueueCount-- > 0, "cm_bkgQueueCount 0");
 134         lock_ReleaseWrite(&cm_daemonLock);
 135
 136         osi_Log1(afsd_logp,"cm_BkgDaemon processing request 0x%p", rp);
 137
 138 #ifdef DEBUG_REFCOUNT
 139         osi_Log2(afsd_logp,"cm_BkgDaemon (before) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 140 #endif
 141         code = (*rp->procp)(rp->scp, rp->p1, rp->p2, rp->p3, rp->p4, rp->userp);
 142 #ifdef DEBUG_REFCOUNT
 143         osi_Log2(afsd_logp,"cm_BkgDaemon (after) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 144 #endif
 145
 146         /*
 147          * Keep the following list synchronized with the
 148          * error code list in cm_BkgStore.
 149          * cm_SyncOpDone(CM_SCACHESYNC_ASYNCSTORE) will be called there unless
 150          * one of these errors has occurred.
 151          */
 152         switch ( code ) {
 153         case CM_ERROR_TIMEDOUT: /* or server restarting */
 154         case CM_ERROR_RETRY:
 155         case CM_ERROR_WOULDBLOCK:
 156         case CM_ERROR_ALLBUSY:
 157         case CM_ERROR_ALLDOWN:
 158         case CM_ERROR_ALLOFFLINE:
 159         case CM_ERROR_PARTIALWRITE:
 160             if (rp->procp == cm_BkgStore) {
 161                 osi_Log2(afsd_logp,
 162                          "cm_BkgDaemon re-queueing failed request 0x%p code 0x%x",
 163                          rp, code);
 164                 lock_ObtainWrite(&cm_daemonLock);
 165                 cm_bkgQueueCount++;
 166                 osi_QAddT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **)&cm_bkgListEndp, &rp->q);
 167                 break;
 168             } /* otherwise fall through */
 169         case 0:  /* success */
 170         default: /* other error */
 171             if (code == 0)
 172                 osi_Log1(afsd_logp,"cm_BkgDaemon SUCCESS: request 0x%p", rp);
 173             else
 174                 osi_Log2(afsd_logp,"cm_BkgDaemon FAILED: request dropped 0x%p code 0x%x",
 175                          rp, code);
 176             cm_ReleaseUser(rp->userp);
 177             cm_ReleaseSCache(rp->scp);
 178             free(rp);
 179             lock_ObtainWrite(&cm_daemonLock);
 180         }
 181     }
 182     lock_ReleaseWrite(&cm_daemonLock);
 183     thrd_SetEvent(cm_BkgDaemon_ShutdownEvent[daemonID]);
 184 }
 185
 186 void cm_QueueBKGRequest(cm_scache_t *scp, cm_bkgProc_t *procp, afs_uint32 p1, afs_uint32 p2, afs_uint32 p3, afs_uint32 p4,
 187         cm_user_t *userp)
 188 {
 189     cm_bkgRequest_t *rp;
 190
 191     rp = malloc(sizeof(*rp));
 192     memset(rp, 0, sizeof(*rp));
 193
 194     cm_HoldSCache(scp);
 195     rp->scp = scp;
 196     cm_HoldUser(userp);
 197     rp->userp = userp;
 198     rp->procp = procp;
 199     rp->p1 = p1;
 200     rp->p2 = p2;
 201     rp->p3 = p3;
 202     rp->p4 = p4;
 203
 204     lock_ObtainWrite(&cm_daemonLock);
 205     cm_bkgQueueCount++;
 206     osi_QAdd((osi_queue_t **) &cm_bkgListp, &rp->q);
 207     if (!cm_bkgListEndp)
 208         cm_bkgListEndp = rp;
 209     lock_ReleaseWrite(&cm_daemonLock);
 210
 211     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 212 }
 213
 214 static int
 215 IsWindowsFirewallPresent(void)
 216 {
 217     SC_HANDLE scm;
 218     SC_HANDLE svc;
 219     BOOLEAN flag;
 220     BOOLEAN result = FALSE;
 221     LPQUERY_SERVICE_CONFIG pConfig = NULL;
 222     DWORD BufSize;
 223     LONG status;
 224
 225     /* Open services manager */
 226     scm = OpenSCManager(NULL, NULL, GENERIC_READ);
 227     if (!scm) return FALSE;
 228
 229     /* Open Windows Firewall service */
 230     svc = OpenService(scm, "MpsSvc", SERVICE_QUERY_CONFIG);
 231     if (!svc) {
 232         afsi_log("MpsSvc Service could not be opened for query: 0x%x", GetLastError());
 233         svc = OpenService(scm, "SharedAccess", SERVICE_QUERY_CONFIG);
 234         if (!svc)
 235             afsi_log("SharedAccess Service could not be opened for query: 0x%x", GetLastError());
 236     }
 237     if (!svc)
 238         goto close_scm;
 239
 240     /* Query Windows Firewall service config, first just to get buffer size */
 241     /* Expected to fail, so don't test return value */
 242     (void) QueryServiceConfig(svc, NULL, 0, &BufSize);
 243     status = GetLastError();
 244     if (status != ERROR_INSUFFICIENT_BUFFER)
 245         goto close_svc;
 246
 247     /* Allocate buffer */
 248     pConfig = (LPQUERY_SERVICE_CONFIG)GlobalAlloc(GMEM_FIXED,BufSize);
 249     if (!pConfig)
 250         goto close_svc;
 251
 252     /* Query Windows Firewall service config, this time for real */
 253     flag = QueryServiceConfig(svc, pConfig, BufSize, &BufSize);
 254     if (!flag) {
 255         afsi_log("QueryServiceConfig failed: 0x%x", GetLastError());
 256         goto free_pConfig;
 257     }
 258
 259     /* Is it autostart? */
 260     afsi_log("AutoStart 0x%x", pConfig->dwStartType);
 261     if (pConfig->dwStartType < SERVICE_DEMAND_START)
 262         result = TRUE;
 263
 264   free_pConfig:
 265     GlobalFree(pConfig);
 266   close_svc:
 267     CloseServiceHandle(svc);
 268   close_scm:
 269     CloseServiceHandle(scm);
 270
 271     return result;
 272 }
 273
 274 void
 275 cm_DaemonCheckInit(void)
 276 {
 277     HKEY parmKey;
 278     DWORD dummyLen;
 279     DWORD dummy;
 280     DWORD code;
 281
 282     code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
 283                          0, KEY_QUERY_VALUE, &parmKey);
 284     if (code)
 285         return;
 286
 287     dummyLen = sizeof(DWORD);
 288     code = RegQueryValueEx(parmKey, "daemonCheckDownInterval", NULL, NULL,
 289                             (BYTE *) &dummy, &dummyLen);
 290     if (code == ERROR_SUCCESS && dummy)
 291         cm_daemonCheckDownInterval = dummy;
 292     afsi_log("daemonCheckDownInterval is %d", cm_daemonCheckDownInterval);
 293
 294     dummyLen = sizeof(DWORD);
 295     code = RegQueryValueEx(parmKey, "daemonCheckUpInterval", NULL, NULL,
 296                             (BYTE *) &dummy, &dummyLen);
 297     if (code == ERROR_SUCCESS && dummy)
 298         cm_daemonCheckUpInterval = dummy;
 299     afsi_log("daemonCheckUpInterval is %d", cm_daemonCheckUpInterval);
 300
 301     dummyLen = sizeof(DWORD);
 302     code = RegQueryValueEx(parmKey, "daemonCheckVolInterval", NULL, NULL,
 303                             (BYTE *) &dummy, &dummyLen);
 304     if (code == ERROR_SUCCESS && dummy)
 305         cm_daemonCheckVolInterval = dummy;
 306     afsi_log("daemonCheckVolInterval is %d", cm_daemonCheckVolInterval);
 307
 308     dummyLen = sizeof(DWORD);
 309     code = RegQueryValueEx(parmKey, "daemonCheckCBInterval", NULL, NULL,
 310                             (BYTE *) &dummy, &dummyLen);
 311     if (code == ERROR_SUCCESS && dummy)
 312         cm_daemonCheckCBInterval = dummy;
 313     afsi_log("daemonCheckCBInterval is %d", cm_daemonCheckCBInterval);
 314
 315     dummyLen = sizeof(DWORD);
 316     code = RegQueryValueEx(parmKey, "daemonCheckVolCBInterval", NULL, NULL,
 317                             (BYTE *) &dummy, &dummyLen);
 318     if (code == ERROR_SUCCESS && dummy)
 319         cm_daemonCheckVolCBInterval = dummy;
 320     afsi_log("daemonCheckVolCBInterval is %d", cm_daemonCheckVolCBInterval);
 321
 322     dummyLen = sizeof(DWORD);
 323     code = RegQueryValueEx(parmKey, "daemonCheckLockInterval", NULL, NULL,
 324                             (BYTE *) &dummy, &dummyLen);
 325     if (code == ERROR_SUCCESS && dummy)
 326         cm_daemonCheckLockInterval = dummy;
 327     afsi_log("daemonCheckLockInterval is %d", cm_daemonCheckLockInterval);
 328
 329     dummyLen = sizeof(DWORD);
 330     code = RegQueryValueEx(parmKey, "daemonCheckTokenInterval", NULL, NULL,
 331                             (BYTE *) &dummy, &dummyLen);
 332     if (code == ERROR_SUCCESS && dummy)
 333         cm_daemonTokenCheckInterval = dummy;
 334     afsi_log("daemonCheckTokenInterval is %d", cm_daemonTokenCheckInterval);
 335
 336     dummyLen = sizeof(DWORD);
 337     code = RegQueryValueEx(parmKey, "daemonCheckOfflineVolInterval", NULL, NULL,
 338                             (BYTE *) &dummy, &dummyLen);
 339     if (code == ERROR_SUCCESS && dummy)
 340         cm_daemonCheckOfflineVolInterval = dummy;
 341     afsi_log("daemonCheckOfflineVolInterval is %d", cm_daemonCheckOfflineVolInterval);
 342
 343     dummyLen = sizeof(DWORD);
 344     code = RegQueryValueEx(parmKey, "daemonPerformanceTuningInterval", NULL, NULL,
 345                             (BYTE *) &dummy, &dummyLen);
 346     if (code == ERROR_SUCCESS)
 347         cm_daemonPerformanceTuningInterval = dummy;
 348     afsi_log("daemonPerformanceTuningInterval is %d", cm_daemonPerformanceTuningInterval);
 349
 350     dummyLen = sizeof(DWORD);
 351     code = RegQueryValueEx(parmKey, "daemonRankServerInterval", NULL, NULL,
 352                             (BYTE *) &dummy, &dummyLen);
 353     if (code == ERROR_SUCCESS && dummy)
 354         cm_daemonRankServerInterval = dummy;
 355     afsi_log("daemonRankServerInterval is %d", cm_daemonRankServerInterval);
 356
 357     RegCloseKey(parmKey);
 358
 359     if (cm_daemonPerformanceTuningInterval)
 360         cm_PerformanceTuningInit();
 361 }
 362
 363 /* periodic check daemon */
 364 void cm_Daemon(long parm)
 365 {
 366     time_t now;
 367     time_t lastLockCheck;
 368     time_t lastVolCheck;
 369     time_t lastCBExpirationCheck;
 370     time_t lastVolCBRenewalCheck;
 371     time_t lastDownServerCheck;
 372     time_t lastUpServerCheck;
 373     time_t lastTokenCacheCheck;
 374     time_t lastBusyVolCheck;
 375     time_t lastPerformanceCheck;
 376     time_t lastServerRankCheck;
 377     char thostName[200];
 378     unsigned long code;
 379     struct hostent *thp;
 380     HMODULE hHookDll;
 381     char * name = "cm_Daemon_ShutdownEvent";
 382     int configureFirewall = IsWindowsFirewallPresent();
 383     int bAddrChangeCheck = 0;
 384
 385     cm_Daemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 386     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 387         afsi_log("Event Object Already Exists: %s", name);
 388
 389     if (!configureFirewall) {
 390         afsi_log("No Windows Firewall detected");
 391     }
 392
 393     if (cm_freelanceEnabled && cm_freelanceImportCellServDB)
 394         cm_FreelanceImportCellServDB();
 395
 396     /* ping all file servers, up or down, with unauthenticated connection,
 397      * to find out whether we have all our callbacks from the server still.
 398      * Also, ping down VLDBs.
 399      */
 400     /*
 401      * Seed the random number generator with our own address, so that
 402      * clients starting at the same time don't all do vol checks at the
 403      * same time.
 404      */
 405     gethostname(thostName, sizeof(thostName));
 406     thp = gethostbyname(thostName);
 407     if (thp == NULL)    /* In djgpp, gethostname returns the netbios
 408                            name of the machine.  gethostbyname will fail
 409                            looking this up if it differs from DNS name. */
 410         code = 0;
 411     else
 412         memcpy(&code, thp->h_addr_list[0], 4);
 413
 414     srand(ntohl(code));
 415
 416     cm_DaemonCheckInit();
 417
 418     now = osi_Time();
 419     lastVolCheck = now - cm_daemonCheckVolInterval/2 + (rand() % cm_daemonCheckVolInterval);
 420     lastCBExpirationCheck = now - cm_daemonCheckCBInterval/2 + (rand() % cm_daemonCheckCBInterval);
 421     if (cm_daemonCheckVolCBInterval)
 422         lastVolCBRenewalCheck = now - cm_daemonCheckVolCBInterval/2 + (rand() % cm_daemonCheckVolCBInterval);
 423     lastLockCheck = now - cm_daemonCheckLockInterval/2 + (rand() % cm_daemonCheckLockInterval);
 424     lastDownServerCheck = now - cm_daemonCheckDownInterval/2 + (rand() % cm_daemonCheckDownInterval);
 425     lastUpServerCheck = now - cm_daemonCheckUpInterval/2 + (rand() % cm_daemonCheckUpInterval);
 426     lastTokenCacheCheck = now - cm_daemonTokenCheckInterval/2 + (rand() % cm_daemonTokenCheckInterval);
 427     lastBusyVolCheck = now - cm_daemonCheckOfflineVolInterval/2 * (rand() % cm_daemonCheckOfflineVolInterval);
 428     if (cm_daemonPerformanceTuningInterval)
 429         lastPerformanceCheck = now - cm_daemonPerformanceTuningInterval/2 * (rand() % cm_daemonPerformanceTuningInterval);
 430     lastServerRankCheck = now - cm_daemonRankServerInterval/2 * (rand() % cm_daemonRankServerInterval);
 431
 432     while (daemon_ShutdownFlag == 0) {
 433         if (powerStateSuspended) {
 434             Sleep(1000);
 435             continue;
 436         }
 437         /* check to see if the listener threads halted due to network
 438          * disconnect or other issues.  If so, attempt to restart them.
 439          */
 440         smb_RestartListeners(0);
 441
 442         if (daemon_ShutdownFlag == 1)
 443             break;
 444
 445         if (configureFirewall) {
 446             /* Open Microsoft Firewall to allow in port 7001 */
 447             switch (icf_CheckAndAddAFSPorts(AFS_PORTSET_CLIENT)) {
 448             case 0:
 449                 afsi_log("Windows Firewall Configuration succeeded");
 450                 configureFirewall = 0;
 451                 break;
 452             case 1:
 453                 afsi_log("Invalid Windows Firewall Port Set");
 454                 break;
 455             case 2:
 456                 afsi_log("Unable to open Windows Firewall Profile");
 457                 break;
 458             case 3:
 459                 afsi_log("Unable to create/modify Windows Firewall Port entries");
 460                 break;
 461             default:
 462                 afsi_log("Unknown Windows Firewall Configuration error");
 463             }
 464         }
 465
 466         /* find out what time it is */
 467         now = osi_Time();
 468
 469         /* Determine whether an address change took place that we need to respond to */
 470         if (bAddrChangeCheck)
 471             bAddrChangeCheck = 0;
 472
 473         if (lastIPAddrChange != 0 && lastIPAddrChange + 2500 < now) {
 474             bAddrChangeCheck = 1;
 475             lastIPAddrChange = 0;
 476         }
 477
 478         /* check down servers */
 479         if ((bAddrChangeCheck || now > lastDownServerCheck + cm_daemonCheckDownInterval) &&
 480             daemon_ShutdownFlag == 0 &&
 481             powerStateSuspended == 0) {
 482             lastDownServerCheck = now;
 483             osi_Log0(afsd_logp, "cm_Daemon CheckDownServers");
 484             cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, NULL);
 485             if (daemon_ShutdownFlag == 1)
 486                 break;
 487             now = osi_Time();
 488         }
 489
 490         if (bAddrChangeCheck &&
 491             daemon_ShutdownFlag == 0 &&
 492             powerStateSuspended == 0)
 493             cm_ForceNewConnectionsAllServers();
 494
 495         /* check up servers */
 496         if ((bAddrChangeCheck || now > lastUpServerCheck + cm_daemonCheckUpInterval) &&
 497             daemon_ShutdownFlag == 0 &&
 498             powerStateSuspended == 0) {
 499             lastUpServerCheck = now;
 500             osi_Log0(afsd_logp, "cm_Daemon CheckUpServers");
 501             cm_CheckServers(CM_FLAG_CHECKUPSERVERS, NULL);
 502             if (daemon_ShutdownFlag == 1)
 503                 break;
 504             now = osi_Time();
 505         }
 506
 507         if (bAddrChangeCheck &&
 508             daemon_ShutdownFlag == 0 &&
 509             powerStateSuspended == 0) {
 510             smb_CheckVCs();
 511             cm_VolStatus_Network_Addr_Change();
 512         }
 513
 514         /*
 515          * Once every five minutes inspect the volume list and enforce
 516          * the volume location expiration time.
 517          */
 518         if (now > lastVolCheck + 300 &&
 519             daemon_ShutdownFlag == 0 &&
 520             powerStateSuspended == 0) {
 521             lastVolCheck = now;
 522             cm_RefreshVolumes(cm_daemonCheckVolInterval);
 523             if (daemon_ShutdownFlag == 1)
 524                 break;
 525             now = osi_Time();
 526         }
 527
 528         /* Rank all up servers */
 529         if ((now > lastServerRankCheck + cm_daemonRankServerInterval) &&
 530             daemon_ShutdownFlag == 0 &&
 531             powerStateSuspended == 0) {
 532             lastServerRankCheck = now;
 533             osi_Log0(afsd_logp, "cm_Daemon RankServer");
 534             cm_RankUpServers();
 535             if(daemon_ShutdownFlag == 1)
 536                 break;
 537             now = osi_Time();
 538         }
 539
 540         if (cm_daemonCheckVolCBInterval &&
 541             now > lastVolCBRenewalCheck + cm_daemonCheckVolCBInterval &&
 542             daemon_ShutdownFlag == 0 &&
 543             powerStateSuspended == 0) {
 544             lastVolCBRenewalCheck = now;
 545             cm_VolumeRenewROCallbacks();
 546             if (daemon_ShutdownFlag == 1)
 547                 break;
 548             now = osi_Time();
 549         }
 550
 551         if ((bAddrChangeCheck || now > lastBusyVolCheck + cm_daemonCheckOfflineVolInterval) &&
 552             daemon_ShutdownFlag == 0 &&
 553             powerStateSuspended == 0) {
 554             lastVolCheck = now;
 555             cm_CheckOfflineVolumes();
 556             if (daemon_ShutdownFlag == 1)
 557                 break;
 558             now = osi_Time();
 559         }
 560
 561         if (now > lastCBExpirationCheck + cm_daemonCheckCBInterval &&
 562             daemon_ShutdownFlag == 0 &&
 563             powerStateSuspended == 0) {
 564             lastCBExpirationCheck = now;
 565             cm_CheckCBExpiration();
 566             if (daemon_ShutdownFlag == 1)
 567                 break;
 568             now = osi_Time();
 569         }
 570
 571         if (now > lastLockCheck + cm_daemonCheckLockInterval &&
 572             daemon_ShutdownFlag == 0 &&
 573             powerStateSuspended == 0) {
 574             lastLockCheck = now;
 575             cm_CheckLocks();
 576             if (daemon_ShutdownFlag == 1)
 577                 break;
 578             now = osi_Time();
 579         }
 580
 581         if (now > lastTokenCacheCheck + cm_daemonTokenCheckInterval &&
 582             daemon_ShutdownFlag == 0 &&
 583             powerStateSuspended == 0) {
 584             lastTokenCacheCheck = now;
 585             cm_CheckTokenCache(now);
 586             if (daemon_ShutdownFlag == 1)
 587                 break;
 588             now = osi_Time();
 589         }
 590
 591         /* allow an exit to be called prior to stopping the service */
 592         hHookDll = cm_LoadAfsdHookLib();
 593         if (hHookDll)
 594         {
 595             BOOL hookRc = TRUE;
 596             AfsdDaemonHook daemonHook = ( AfsdDaemonHook ) GetProcAddress(hHookDll, AFSD_DAEMON_HOOK);
 597             if (daemonHook)
 598             {
 599                 hookRc = daemonHook();
 600             }
 601             FreeLibrary(hHookDll);
 602             hHookDll = NULL;
 603
 604             if (hookRc == FALSE)
 605             {
 606                 SetEvent(WaitToTerminate);
 607             }
 608
 609             if (daemon_ShutdownFlag == 1) {
 610                 break;
 611             }
 612             now = osi_Time();
 613         }
 614
 615         if (cm_daemonPerformanceTuningInterval &&
 616             now > lastPerformanceCheck + cm_daemonPerformanceTuningInterval &&
 617             daemon_ShutdownFlag == 0 &&
 618             powerStateSuspended == 0) {
 619             lastPerformanceCheck = now;
 620             cm_PerformanceTuningCheck();
 621             if (daemon_ShutdownFlag == 1)
 622                 break;
 623             now = osi_Time();
 624         }
 625
 626         thrd_Sleep(10000);              /* sleep 10 seconds */
 627     }
 628     thrd_SetEvent(cm_Daemon_ShutdownEvent);
 629 }
 630
 631 void cm_DaemonShutdown(void)
 632 {
 633     int i;
 634     DWORD code;
 635
 636     daemon_ShutdownFlag = 1;
 637     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 638
 639     /* wait for shutdown */
 640     if (cm_Daemon_ShutdownEvent)
 641         code = thrd_WaitForSingleObject_Event(cm_Daemon_ShutdownEvent, INFINITE);
 642
 643     for ( i=0; i<cm_nDaemons; i++) {
 644         if (cm_BkgDaemon_ShutdownEvent[i])
 645             code = thrd_WaitForSingleObject_Event(cm_BkgDaemon_ShutdownEvent[i], INFINITE);
 646     }
 647
 648     if (cm_IPAddrDaemon_ShutdownEvent)
 649         code = thrd_WaitForSingleObject_Event(cm_IPAddrDaemon_ShutdownEvent, INFINITE);
 650 }
 651
 652 void cm_InitDaemon(int nDaemons)
 653 {
 654     static osi_once_t once;
 655     long pid;
 656     thread_t phandle;
 657     int i;
 658
 659     cm_nDaemons = (nDaemons > CM_MAX_DAEMONS) ? CM_MAX_DAEMONS : nDaemons;
 660
 661     if (osi_Once(&once)) {
 662         lock_InitializeRWLock(&cm_daemonLock, "cm_daemonLock",
 663                                LOCK_HIERARCHY_DAEMON_GLOBAL);
 664         osi_EndOnce(&once);
 665
 666         /* creating IP Address Change monitor daemon */
 667         phandle = thrd_Create((SecurityAttrib) 0, 0,
 668                                (ThreadFunc) cm_IpAddrDaemon, 0, 0, &pid, "cm_IpAddrDaemon");
 669         osi_assertx(phandle != NULL, "cm_IpAddrDaemon thread creation failure");
 670         thrd_CloseHandle(phandle);
 671
 672         /* creating pinging daemon */
 673         phandle = thrd_Create((SecurityAttrib) 0, 0,
 674                                (ThreadFunc) cm_Daemon, 0, 0, &pid, "cm_Daemon");
 675         osi_assertx(phandle != NULL, "cm_Daemon thread creation failure");
 676         thrd_CloseHandle(phandle);
 677
 678         for(i=0; i < cm_nDaemons; i++) {
 679             phandle = thrd_Create((SecurityAttrib) 0, 0,
 680                                    (ThreadFunc) cm_BkgDaemon, (LPVOID)(LONG_PTR)i, 0, &pid,
 681                                    "cm_BkgDaemon");
 682             osi_assertx(phandle != NULL, "cm_BkgDaemon thread creation failure");
 683             thrd_CloseHandle(phandle);
 684         }
 685     }
 686 }