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  = 2;
  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_LockDaemon_ShutdownEvent = NULL;
  60 static EVENT_HANDLE cm_IPAddrDaemon_ShutdownEvent = NULL;
  61 static EVENT_HANDLE cm_BkgDaemon_ShutdownEvent[CM_MAX_DAEMONS] =
  62        {NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL};
  63
  64 void cm_IpAddrDaemon(long parm)
  65 {
  66     extern void smb_CheckVCs(void);
  67     char * name = "cm_IPAddrDaemon_ShutdownEvent";
  68
  69     cm_IPAddrDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
  70     if ( GetLastError() == ERROR_ALREADY_EXISTS )
  71         afsi_log("Event Object Already Exists: %s", name);
  72
  73     rx_StartClientThread();
  74
  75     while (daemon_ShutdownFlag == 0) {
  76         DWORD Result;
  77
  78         thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  79         Result = NotifyAddrChange(NULL,NULL);
  80         if (Result == NO_ERROR && daemon_ShutdownFlag == 0) {
  81             lastIPAddrChange = osi_Time();
  82             smb_SetLanAdapterChangeDetected();
  83             cm_SetLanAdapterChangeDetected();
  84             thrd_ResetEvent(cm_IPAddrDaemon_ShutdownEvent);
  85         }
  86     }
  87
  88     thrd_SetEvent(cm_IPAddrDaemon_ShutdownEvent);
  89 }
  90
  91 void cm_BkgDaemon(void * parm)
  92 {
  93     cm_bkgRequest_t *rp;
  94     afs_int32 code;
  95     char name[32] = "";
  96     long daemonID = (long)(LONG_PTR)parm;
  97
  98     snprintf(name, sizeof(name), "cm_BkgDaemon_ShutdownEvent%u", daemonID);
  99
 100     cm_BkgDaemon_ShutdownEvent[daemonID] = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 101     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 102         afsi_log("Event Object Already Exists: %s", name);
 103
 104     rx_StartClientThread();
 105
 106     lock_ObtainWrite(&cm_daemonLock);
 107     while (daemon_ShutdownFlag == 0) {
 108         if (powerStateSuspended) {
 109             Sleep(1000);
 110             continue;
 111         }
 112         if (!cm_bkgListEndp) {
 113             osi_SleepW((LONG_PTR)&cm_bkgListp, &cm_daemonLock);
 114             lock_ObtainWrite(&cm_daemonLock);
 115             continue;
 116         }
 117
 118         /* we found a request */
 119         for (rp = cm_bkgListEndp; rp; rp = (cm_bkgRequest_t *) osi_QPrev(&rp->q))
 120         {
 121             if (!(rp->scp->flags & CM_SCACHEFLAG_DATASTORING) &&
 122                 cm_ServerAvailable(&rp->scp->fid, rp->userp))
 123                 break;
 124         }
 125         if (rp == NULL) {
 126             /* we couldn't find a request that we could process at the current time */
 127             lock_ReleaseWrite(&cm_daemonLock);
 128             Sleep(1000);
 129             lock_ObtainWrite(&cm_daemonLock);
 130             continue;
 131         }
 132
 133         osi_QRemoveHT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **) &cm_bkgListEndp, &rp->q);
 134         osi_assertx(cm_bkgQueueCount-- > 0, "cm_bkgQueueCount 0");
 135         lock_ReleaseWrite(&cm_daemonLock);
 136
 137         osi_Log1(afsd_logp,"cm_BkgDaemon processing request 0x%p", rp);
 138
 139 #ifdef DEBUG_REFCOUNT
 140         osi_Log2(afsd_logp,"cm_BkgDaemon (before) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 141 #endif
 142         code = (*rp->procp)(rp->scp, rp->p1, rp->p2, rp->p3, rp->p4, rp->userp);
 143 #ifdef DEBUG_REFCOUNT
 144         osi_Log2(afsd_logp,"cm_BkgDaemon (after) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 145 #endif
 146
 147         /*
 148          * Keep the following list synchronized with the
 149          * error code list in cm_BkgStore.
 150          * cm_SyncOpDone(CM_SCACHESYNC_ASYNCSTORE) will be called there unless
 151          * one of these errors has occurred.
 152          */
 153         switch ( code ) {
 154         case CM_ERROR_TIMEDOUT: /* or server restarting */
 155         case CM_ERROR_RETRY:
 156         case CM_ERROR_WOULDBLOCK:
 157         case CM_ERROR_ALLBUSY:
 158         case CM_ERROR_ALLDOWN:
 159         case CM_ERROR_ALLOFFLINE:
 160         case CM_ERROR_PARTIALWRITE:
 161             if (rp->procp == cm_BkgStore) {
 162                 osi_Log2(afsd_logp,
 163                          "cm_BkgDaemon re-queueing failed request 0x%p code 0x%x",
 164                          rp, code);
 165                 lock_ObtainWrite(&cm_daemonLock);
 166                 cm_bkgQueueCount++;
 167                 osi_QAddT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **)&cm_bkgListEndp, &rp->q);
 168                 break;
 169             } /* otherwise fall through */
 170         case 0:  /* success */
 171         default: /* other error */
 172             if (code == 0)
 173                 osi_Log1(afsd_logp,"cm_BkgDaemon SUCCESS: request 0x%p", rp);
 174             else
 175                 osi_Log2(afsd_logp,"cm_BkgDaemon FAILED: request dropped 0x%p code 0x%x",
 176                          rp, code);
 177             cm_ReleaseUser(rp->userp);
 178             cm_ReleaseSCache(rp->scp);
 179             free(rp);
 180             lock_ObtainWrite(&cm_daemonLock);
 181         }
 182     }
 183     lock_ReleaseWrite(&cm_daemonLock);
 184     thrd_SetEvent(cm_BkgDaemon_ShutdownEvent[daemonID]);
 185 }
 186
 187 void cm_QueueBKGRequest(cm_scache_t *scp, cm_bkgProc_t *procp, afs_uint32 p1, afs_uint32 p2, afs_uint32 p3, afs_uint32 p4,
 188         cm_user_t *userp)
 189 {
 190     cm_bkgRequest_t *rp;
 191
 192     rp = malloc(sizeof(*rp));
 193     memset(rp, 0, sizeof(*rp));
 194
 195     cm_HoldSCache(scp);
 196     rp->scp = scp;
 197     cm_HoldUser(userp);
 198     rp->userp = userp;
 199     rp->procp = procp;
 200     rp->p1 = p1;
 201     rp->p2 = p2;
 202     rp->p3 = p3;
 203     rp->p4 = p4;
 204
 205     lock_ObtainWrite(&cm_daemonLock);
 206     cm_bkgQueueCount++;
 207     osi_QAdd((osi_queue_t **) &cm_bkgListp, &rp->q);
 208     if (!cm_bkgListEndp)
 209         cm_bkgListEndp = rp;
 210     lock_ReleaseWrite(&cm_daemonLock);
 211
 212     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 213 }
 214
 215 static int
 216 IsWindowsFirewallPresent(void)
 217 {
 218     SC_HANDLE scm;
 219     SC_HANDLE svc;
 220     BOOLEAN flag;
 221     BOOLEAN result = FALSE;
 222     LPQUERY_SERVICE_CONFIG pConfig = NULL;
 223     DWORD BufSize;
 224     LONG status;
 225
 226     /* Open services manager */
 227     scm = OpenSCManager(NULL, NULL, GENERIC_READ);
 228     if (!scm) return FALSE;
 229
 230     /* Open Windows Firewall service */
 231     svc = OpenService(scm, "MpsSvc", SERVICE_QUERY_CONFIG);
 232     if (!svc) {
 233         afsi_log("MpsSvc Service could not be opened for query: 0x%x", GetLastError());
 234         svc = OpenService(scm, "SharedAccess", SERVICE_QUERY_CONFIG);
 235         if (!svc)
 236             afsi_log("SharedAccess Service could not be opened for query: 0x%x", GetLastError());
 237     }
 238     if (!svc)
 239         goto close_scm;
 240
 241     /* Query Windows Firewall service config, first just to get buffer size */
 242     /* Expected to fail, so don't test return value */
 243     (void) QueryServiceConfig(svc, NULL, 0, &BufSize);
 244     status = GetLastError();
 245     if (status != ERROR_INSUFFICIENT_BUFFER)
 246         goto close_svc;
 247
 248     /* Allocate buffer */
 249     pConfig = (LPQUERY_SERVICE_CONFIG)GlobalAlloc(GMEM_FIXED,BufSize);
 250     if (!pConfig)
 251         goto close_svc;
 252
 253     /* Query Windows Firewall service config, this time for real */
 254     flag = QueryServiceConfig(svc, pConfig, BufSize, &BufSize);
 255     if (!flag) {
 256         afsi_log("QueryServiceConfig failed: 0x%x", GetLastError());
 257         goto free_pConfig;
 258     }
 259
 260     /* Is it autostart? */
 261     afsi_log("AutoStart 0x%x", pConfig->dwStartType);
 262     if (pConfig->dwStartType < SERVICE_DEMAND_START)
 263         result = TRUE;
 264
 265   free_pConfig:
 266     GlobalFree(pConfig);
 267   close_svc:
 268     CloseServiceHandle(svc);
 269   close_scm:
 270     CloseServiceHandle(scm);
 271
 272     return result;
 273 }
 274
 275 void
 276 cm_DaemonCheckInit(void)
 277 {
 278     HKEY parmKey;
 279     DWORD dummyLen;
 280     DWORD dummy;
 281     DWORD code;
 282
 283     code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
 284                          0, KEY_QUERY_VALUE, &parmKey);
 285     if (code)
 286         return;
 287
 288     dummyLen = sizeof(DWORD);
 289     code = RegQueryValueEx(parmKey, "daemonCheckDownInterval", NULL, NULL,
 290                             (BYTE *) &dummy, &dummyLen);
 291     if (code == ERROR_SUCCESS && dummy)
 292         cm_daemonCheckDownInterval = dummy;
 293     afsi_log("daemonCheckDownInterval is %d", cm_daemonCheckDownInterval);
 294
 295     dummyLen = sizeof(DWORD);
 296     code = RegQueryValueEx(parmKey, "daemonCheckUpInterval", NULL, NULL,
 297                             (BYTE *) &dummy, &dummyLen);
 298     if (code == ERROR_SUCCESS && dummy)
 299         cm_daemonCheckUpInterval = dummy;
 300     afsi_log("daemonCheckUpInterval is %d", cm_daemonCheckUpInterval);
 301
 302     dummyLen = sizeof(DWORD);
 303     code = RegQueryValueEx(parmKey, "daemonCheckVolInterval", NULL, NULL,
 304                             (BYTE *) &dummy, &dummyLen);
 305     if (code == ERROR_SUCCESS && dummy)
 306         cm_daemonCheckVolInterval = dummy;
 307     afsi_log("daemonCheckVolInterval is %d", cm_daemonCheckVolInterval);
 308
 309     dummyLen = sizeof(DWORD);
 310     code = RegQueryValueEx(parmKey, "daemonCheckCBInterval", NULL, NULL,
 311                             (BYTE *) &dummy, &dummyLen);
 312     if (code == ERROR_SUCCESS && dummy)
 313         cm_daemonCheckCBInterval = dummy;
 314     afsi_log("daemonCheckCBInterval is %d", cm_daemonCheckCBInterval);
 315
 316     dummyLen = sizeof(DWORD);
 317     code = RegQueryValueEx(parmKey, "daemonCheckVolCBInterval", NULL, NULL,
 318                             (BYTE *) &dummy, &dummyLen);
 319     if (code == ERROR_SUCCESS && dummy)
 320         cm_daemonCheckVolCBInterval = dummy;
 321     afsi_log("daemonCheckVolCBInterval is %d", cm_daemonCheckVolCBInterval);
 322
 323     dummyLen = sizeof(DWORD);
 324     code = RegQueryValueEx(parmKey, "daemonCheckLockInterval", NULL, NULL,
 325                             (BYTE *) &dummy, &dummyLen);
 326     if (code == ERROR_SUCCESS && dummy)
 327         cm_daemonCheckLockInterval = dummy;
 328     afsi_log("daemonCheckLockInterval is %d", cm_daemonCheckLockInterval);
 329
 330     dummyLen = sizeof(DWORD);
 331     code = RegQueryValueEx(parmKey, "daemonCheckTokenInterval", NULL, NULL,
 332                             (BYTE *) &dummy, &dummyLen);
 333     if (code == ERROR_SUCCESS && dummy)
 334         cm_daemonTokenCheckInterval = dummy;
 335     afsi_log("daemonCheckTokenInterval is %d", cm_daemonTokenCheckInterval);
 336
 337     dummyLen = sizeof(DWORD);
 338     code = RegQueryValueEx(parmKey, "daemonCheckOfflineVolInterval", NULL, NULL,
 339                             (BYTE *) &dummy, &dummyLen);
 340     if (code == ERROR_SUCCESS && dummy)
 341         cm_daemonCheckOfflineVolInterval = dummy;
 342     afsi_log("daemonCheckOfflineVolInterval is %d", cm_daemonCheckOfflineVolInterval);
 343
 344     dummyLen = sizeof(DWORD);
 345     code = RegQueryValueEx(parmKey, "daemonPerformanceTuningInterval", NULL, NULL,
 346                             (BYTE *) &dummy, &dummyLen);
 347     if (code == ERROR_SUCCESS)
 348         cm_daemonPerformanceTuningInterval = dummy;
 349     afsi_log("daemonPerformanceTuningInterval is %d", cm_daemonPerformanceTuningInterval);
 350
 351     dummyLen = sizeof(DWORD);
 352     code = RegQueryValueEx(parmKey, "daemonRankServerInterval", NULL, NULL,
 353                             (BYTE *) &dummy, &dummyLen);
 354     if (code == ERROR_SUCCESS && dummy)
 355         cm_daemonRankServerInterval = dummy;
 356     afsi_log("daemonRankServerInterval is %d", cm_daemonRankServerInterval);
 357
 358     RegCloseKey(parmKey);
 359
 360     if (cm_daemonPerformanceTuningInterval)
 361         cm_PerformanceTuningInit();
 362 }
 363
 364 /* periodic lock check daemon */
 365 void cm_LockDaemon(long parm)
 366 {
 367     time_t now;
 368     time_t lastLockCheck;
 369     char * name = "cm_LockDaemon_ShutdownEvent";
 370
 371     cm_LockDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 372     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 373         afsi_log("Event Object Already Exists: %s", name);
 374
 375     now = osi_Time();
 376     lastLockCheck = now - cm_daemonCheckLockInterval/2 + (rand() % cm_daemonCheckLockInterval);
 377
 378     while (daemon_ShutdownFlag == 0) {
 379         if (powerStateSuspended) {
 380             Sleep(1000);
 381             continue;
 382         }
 383
 384         now = osi_Time();
 385
 386         if (now > lastLockCheck + cm_daemonCheckLockInterval &&
 387             daemon_ShutdownFlag == 0 &&
 388             powerStateSuspended == 0) {
 389             lastLockCheck = now;
 390             cm_CheckLocks();
 391             if (daemon_ShutdownFlag == 1)
 392                 break;
 393         }
 394
 395         thrd_Sleep(1000);               /* sleep 1 second */
 396     }
 397     thrd_SetEvent(cm_LockDaemon_ShutdownEvent);
 398 }
 399
 400 /* periodic check daemon */
 401 void cm_Daemon(long parm)
 402 {
 403     time_t now;
 404     time_t lastVolCheck;
 405     time_t lastCBExpirationCheck;
 406     time_t lastVolCBRenewalCheck;
 407     time_t lastDownServerCheck;
 408     time_t lastUpServerCheck;
 409     time_t lastTokenCacheCheck;
 410     time_t lastBusyVolCheck;
 411     time_t lastPerformanceCheck;
 412     time_t lastServerRankCheck;
 413     char thostName[200];
 414     unsigned long code;
 415     struct hostent *thp;
 416     HMODULE hHookDll;
 417     char * name = "cm_Daemon_ShutdownEvent";
 418     int configureFirewall = IsWindowsFirewallPresent();
 419     int bAddrChangeCheck = 0;
 420
 421     cm_Daemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 422     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 423         afsi_log("Event Object Already Exists: %s", name);
 424
 425     if (!configureFirewall) {
 426         afsi_log("No Windows Firewall detected");
 427     }
 428
 429     if (cm_freelanceEnabled && cm_freelanceImportCellServDB)
 430         cm_FreelanceImportCellServDB();
 431
 432     /* ping all file servers, up or down, with unauthenticated connection,
 433      * to find out whether we have all our callbacks from the server still.
 434      * Also, ping down VLDBs.
 435      */
 436     /*
 437      * Seed the random number generator with our own address, so that
 438      * clients starting at the same time don't all do vol checks at the
 439      * same time.
 440      */
 441     gethostname(thostName, sizeof(thostName));
 442     thp = gethostbyname(thostName);
 443     if (thp == NULL)    /* In djgpp, gethostname returns the netbios
 444                            name of the machine.  gethostbyname will fail
 445                            looking this up if it differs from DNS name. */
 446         code = 0;
 447     else
 448         memcpy(&code, thp->h_addr_list[0], 4);
 449
 450     srand(ntohl(code));
 451
 452     cm_DaemonCheckInit();
 453
 454     now = osi_Time();
 455     lastVolCheck = now - cm_daemonCheckVolInterval/2 + (rand() % cm_daemonCheckVolInterval);
 456     lastCBExpirationCheck = now - cm_daemonCheckCBInterval/2 + (rand() % cm_daemonCheckCBInterval);
 457     if (cm_daemonCheckVolCBInterval)
 458         lastVolCBRenewalCheck = now - cm_daemonCheckVolCBInterval/2 + (rand() % cm_daemonCheckVolCBInterval);
 459     lastDownServerCheck = now - cm_daemonCheckDownInterval/2 + (rand() % cm_daemonCheckDownInterval);
 460     lastUpServerCheck = now - cm_daemonCheckUpInterval/2 + (rand() % cm_daemonCheckUpInterval);
 461     lastTokenCacheCheck = now - cm_daemonTokenCheckInterval/2 + (rand() % cm_daemonTokenCheckInterval);
 462     lastBusyVolCheck = now - cm_daemonCheckOfflineVolInterval/2 * (rand() % cm_daemonCheckOfflineVolInterval);
 463     if (cm_daemonPerformanceTuningInterval)
 464         lastPerformanceCheck = now - cm_daemonPerformanceTuningInterval/2 * (rand() % cm_daemonPerformanceTuningInterval);
 465     lastServerRankCheck = now - cm_daemonRankServerInterval/2 * (rand() % cm_daemonRankServerInterval);
 466
 467     while (daemon_ShutdownFlag == 0) {
 468         if (powerStateSuspended) {
 469             Sleep(1000);
 470             continue;
 471         }
 472         /* check to see if the listener threads halted due to network
 473          * disconnect or other issues.  If so, attempt to restart them.
 474          */
 475         smb_RestartListeners(0);
 476
 477         if (daemon_ShutdownFlag == 1)
 478             break;
 479
 480         if (configureFirewall) {
 481             /* Open Microsoft Firewall to allow in port 7001 */
 482             switch (icf_CheckAndAddAFSPorts(AFS_PORTSET_CLIENT)) {
 483             case 0:
 484                 afsi_log("Windows Firewall Configuration succeeded");
 485                 configureFirewall = 0;
 486                 break;
 487             case 1:
 488                 afsi_log("Invalid Windows Firewall Port Set");
 489                 break;
 490             case 2:
 491                 afsi_log("Unable to open Windows Firewall Profile");
 492                 break;
 493             case 3:
 494                 afsi_log("Unable to create/modify Windows Firewall Port entries");
 495                 break;
 496             default:
 497                 afsi_log("Unknown Windows Firewall Configuration error");
 498             }
 499         }
 500
 501         /* find out what time it is */
 502         now = osi_Time();
 503
 504         /* Determine whether an address change took place that we need to respond to */
 505         if (bAddrChangeCheck)
 506             bAddrChangeCheck = 0;
 507
 508         if (lastIPAddrChange != 0 && lastIPAddrChange + 2500 < now) {
 509             bAddrChangeCheck = 1;
 510             lastIPAddrChange = 0;
 511         }
 512
 513         /* check down servers */
 514         if ((bAddrChangeCheck || now > lastDownServerCheck + cm_daemonCheckDownInterval) &&
 515             daemon_ShutdownFlag == 0 &&
 516             powerStateSuspended == 0) {
 517             lastDownServerCheck = now;
 518             osi_Log0(afsd_logp, "cm_Daemon CheckDownServers");
 519             cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, NULL);
 520             if (daemon_ShutdownFlag == 1)
 521                 break;
 522             now = osi_Time();
 523         }
 524
 525         if (bAddrChangeCheck &&
 526             daemon_ShutdownFlag == 0 &&
 527             powerStateSuspended == 0)
 528             cm_ForceNewConnectionsAllServers();
 529
 530         /* check up servers */
 531         if ((bAddrChangeCheck || now > lastUpServerCheck + cm_daemonCheckUpInterval) &&
 532             daemon_ShutdownFlag == 0 &&
 533             powerStateSuspended == 0) {
 534             lastUpServerCheck = now;
 535             osi_Log0(afsd_logp, "cm_Daemon CheckUpServers");
 536             cm_CheckServers(CM_FLAG_CHECKUPSERVERS, NULL);
 537             if (daemon_ShutdownFlag == 1)
 538                 break;
 539             now = osi_Time();
 540         }
 541
 542         if (bAddrChangeCheck &&
 543             daemon_ShutdownFlag == 0 &&
 544             powerStateSuspended == 0) {
 545             smb_CheckVCs();
 546             cm_VolStatus_Network_Addr_Change();
 547         }
 548
 549         /*
 550          * Once every five minutes inspect the volume list and enforce
 551          * the volume location expiration time.
 552          */
 553         if (now > lastVolCheck + 300 &&
 554             daemon_ShutdownFlag == 0 &&
 555             powerStateSuspended == 0) {
 556             lastVolCheck = now;
 557             cm_RefreshVolumes(cm_daemonCheckVolInterval);
 558             if (daemon_ShutdownFlag == 1)
 559                 break;
 560             now = osi_Time();
 561         }
 562
 563         /* Rank all up servers */
 564         if ((now > lastServerRankCheck + cm_daemonRankServerInterval) &&
 565             daemon_ShutdownFlag == 0 &&
 566             powerStateSuspended == 0) {
 567             lastServerRankCheck = now;
 568             osi_Log0(afsd_logp, "cm_Daemon RankServer");
 569             cm_RankUpServers();
 570             if(daemon_ShutdownFlag == 1)
 571                 break;
 572             now = osi_Time();
 573         }
 574
 575         if (cm_daemonCheckVolCBInterval &&
 576             now > lastVolCBRenewalCheck + cm_daemonCheckVolCBInterval &&
 577             daemon_ShutdownFlag == 0 &&
 578             powerStateSuspended == 0) {
 579             lastVolCBRenewalCheck = now;
 580             cm_VolumeRenewROCallbacks();
 581             if (daemon_ShutdownFlag == 1)
 582                 break;
 583             now = osi_Time();
 584         }
 585
 586         if ((bAddrChangeCheck || now > lastBusyVolCheck + cm_daemonCheckOfflineVolInterval) &&
 587             daemon_ShutdownFlag == 0 &&
 588             powerStateSuspended == 0) {
 589             lastVolCheck = now;
 590             cm_CheckOfflineVolumes();
 591             if (daemon_ShutdownFlag == 1)
 592                 break;
 593             now = osi_Time();
 594         }
 595
 596         if (now > lastCBExpirationCheck + cm_daemonCheckCBInterval &&
 597             daemon_ShutdownFlag == 0 &&
 598             powerStateSuspended == 0) {
 599             lastCBExpirationCheck = now;
 600             cm_CheckCBExpiration();
 601             if (daemon_ShutdownFlag == 1)
 602                 break;
 603             now = osi_Time();
 604         }
 605
 606         if (now > lastTokenCacheCheck + cm_daemonTokenCheckInterval &&
 607             daemon_ShutdownFlag == 0 &&
 608             powerStateSuspended == 0) {
 609             lastTokenCacheCheck = now;
 610             cm_CheckTokenCache(now);
 611             if (daemon_ShutdownFlag == 1)
 612                 break;
 613             now = osi_Time();
 614         }
 615
 616         /* allow an exit to be called prior to stopping the service */
 617         hHookDll = cm_LoadAfsdHookLib();
 618         if (hHookDll)
 619         {
 620             BOOL hookRc = TRUE;
 621             AfsdDaemonHook daemonHook = ( AfsdDaemonHook ) GetProcAddress(hHookDll, AFSD_DAEMON_HOOK);
 622             if (daemonHook)
 623             {
 624                 hookRc = daemonHook();
 625             }
 626             FreeLibrary(hHookDll);
 627             hHookDll = NULL;
 628
 629             if (hookRc == FALSE)
 630             {
 631                 SetEvent(WaitToTerminate);
 632             }
 633
 634             if (daemon_ShutdownFlag == 1) {
 635                 break;
 636             }
 637             now = osi_Time();
 638         }
 639
 640         if (cm_daemonPerformanceTuningInterval &&
 641             now > lastPerformanceCheck + cm_daemonPerformanceTuningInterval &&
 642             daemon_ShutdownFlag == 0 &&
 643             powerStateSuspended == 0) {
 644             lastPerformanceCheck = now;
 645             cm_PerformanceTuningCheck();
 646             if (daemon_ShutdownFlag == 1)
 647                 break;
 648             now = osi_Time();
 649         }
 650
 651         thrd_Sleep(10000);              /* sleep 10 seconds */
 652     }
 653     thrd_SetEvent(cm_Daemon_ShutdownEvent);
 654 }
 655
 656 void cm_DaemonShutdown(void)
 657 {
 658     int i;
 659     DWORD code;
 660
 661     daemon_ShutdownFlag = 1;
 662     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 663
 664     /* wait for shutdown */
 665     if (cm_Daemon_ShutdownEvent)
 666         code = thrd_WaitForSingleObject_Event(cm_Daemon_ShutdownEvent, INFINITE);
 667
 668     if (cm_LockDaemon_ShutdownEvent)
 669         code = thrd_WaitForSingleObject_Event(cm_LockDaemon_ShutdownEvent, INFINITE);
 670
 671     for ( i=0; i<cm_nDaemons; i++) {
 672         if (cm_BkgDaemon_ShutdownEvent[i])
 673             code = thrd_WaitForSingleObject_Event(cm_BkgDaemon_ShutdownEvent[i], INFINITE);
 674     }
 675
 676     if (cm_IPAddrDaemon_ShutdownEvent)
 677         code = thrd_WaitForSingleObject_Event(cm_IPAddrDaemon_ShutdownEvent, INFINITE);
 678 }
 679
 680 void cm_InitDaemon(int nDaemons)
 681 {
 682     static osi_once_t once;
 683     long pid;
 684     thread_t phandle;
 685     int i;
 686
 687     cm_nDaemons = (nDaemons > CM_MAX_DAEMONS) ? CM_MAX_DAEMONS : nDaemons;
 688
 689     if (osi_Once(&once)) {
 690         lock_InitializeRWLock(&cm_daemonLock, "cm_daemonLock",
 691                                LOCK_HIERARCHY_DAEMON_GLOBAL);
 692         osi_EndOnce(&once);
 693
 694         /* creating IP Address Change monitor daemon */
 695         phandle = thrd_Create((SecurityAttrib) 0, 0,
 696                                (ThreadFunc) cm_IpAddrDaemon, 0, 0, &pid, "cm_IpAddrDaemon");
 697         osi_assertx(phandle != NULL, "cm_IpAddrDaemon thread creation failure");
 698         thrd_CloseHandle(phandle);
 699
 700         /* creating pinging daemon */
 701         phandle = thrd_Create((SecurityAttrib) 0, 0,
 702                                (ThreadFunc) cm_Daemon, 0, 0, &pid, "cm_Daemon");
 703         osi_assertx(phandle != NULL, "cm_Daemon thread creation failure");
 704         thrd_CloseHandle(phandle);
 705
 706         phandle = thrd_Create((SecurityAttrib) 0, 0,
 707                                (ThreadFunc) cm_LockDaemon, 0, 0, &pid, "cm_LockDaemon");
 708         osi_assertx(phandle != NULL, "cm_LockDaemon thread creation failure");
 709         thrd_CloseHandle(phandle);
 710
 711         for(i=0; i < cm_nDaemons; i++) {
 712             phandle = thrd_Create((SecurityAttrib) 0, 0,
 713                                    (ThreadFunc) cm_BkgDaemon, (LPVOID)(LONG_PTR)i, 0, &pid,
 714                                    "cm_BkgDaemon");
 715             osi_assertx(phandle != NULL, "cm_BkgDaemon thread creation failure");
 716             thrd_CloseHandle(phandle);
 717         }
 718     }
 719 }