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 (cm_ServerAvailable(&rp->scp->fid, rp->userp) ||
 122                 rp->scp->flags & CM_SCACHEFLAG_DELETED)
 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         if (rp->scp->flags & CM_SCACHEFLAG_DELETED) {
 140             osi_Log1(afsd_logp,"cm_BkgDaemon DELETED scp 0x%x",rp->scp);
 141             code = CM_ERROR_BADFD;
 142         } else {
 143 #ifdef DEBUG_REFCOUNT
 144             osi_Log2(afsd_logp,"cm_BkgDaemon (before) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 145 #endif
 146             code = (*rp->procp)(rp->scp, rp->p1, rp->p2, rp->p3, rp->p4, rp->userp);
 147 #ifdef DEBUG_REFCOUNT
 148             osi_Log2(afsd_logp,"cm_BkgDaemon (after) scp 0x%x ref %d",rp->scp, rp->scp->refCount);
 149 #endif
 150         }
 151
 152         /*
 153          * Keep the following list synchronized with the
 154          * error code list in cm_BkgStore.
 155          * cm_SyncOpDone(CM_SCACHESYNC_ASYNCSTORE) will be called there unless
 156          * one of these errors has occurred.
 157          */
 158         switch ( code ) {
 159         case CM_ERROR_TIMEDOUT: /* or server restarting */
 160         case CM_ERROR_RETRY:
 161         case CM_ERROR_WOULDBLOCK:
 162         case CM_ERROR_ALLBUSY:
 163         case CM_ERROR_ALLDOWN:
 164         case CM_ERROR_ALLOFFLINE:
 165         case CM_ERROR_PARTIALWRITE:
 166             if (rp->procp == cm_BkgStore) {
 167                 osi_Log2(afsd_logp,
 168                          "cm_BkgDaemon re-queueing failed request 0x%p code 0x%x",
 169                          rp, code);
 170                 lock_ObtainWrite(&cm_daemonLock);
 171                 cm_bkgQueueCount++;
 172                 osi_QAddT((osi_queue_t **) &cm_bkgListp, (osi_queue_t **)&cm_bkgListEndp, &rp->q);
 173                 break;
 174             } /* otherwise fall through */
 175         case 0:  /* success */
 176         default: /* other error */
 177             if (code == 0) {
 178                 osi_Log1(afsd_logp,"cm_BkgDaemon SUCCESS: request 0x%p", rp);
 179             } else {
 180                 osi_Log2(afsd_logp,"cm_BkgDaemon FAILED: request dropped 0x%p code 0x%x",
 181                          rp, code);
 182             }
 183             cm_ReleaseUser(rp->userp);
 184             cm_ReleaseSCache(rp->scp);
 185             free(rp);
 186             lock_ObtainWrite(&cm_daemonLock);
 187         }
 188     }
 189     lock_ReleaseWrite(&cm_daemonLock);
 190     thrd_SetEvent(cm_BkgDaemon_ShutdownEvent[daemonID]);
 191 }
 192
 193 void cm_QueueBKGRequest(cm_scache_t *scp, cm_bkgProc_t *procp, afs_uint32 p1, afs_uint32 p2, afs_uint32 p3, afs_uint32 p4,
 194         cm_user_t *userp)
 195 {
 196     cm_bkgRequest_t *rp;
 197
 198     rp = malloc(sizeof(*rp));
 199     memset(rp, 0, sizeof(*rp));
 200
 201     cm_HoldSCache(scp);
 202     rp->scp = scp;
 203     cm_HoldUser(userp);
 204     rp->userp = userp;
 205     rp->procp = procp;
 206     rp->p1 = p1;
 207     rp->p2 = p2;
 208     rp->p3 = p3;
 209     rp->p4 = p4;
 210
 211     lock_ObtainWrite(&cm_daemonLock);
 212     cm_bkgQueueCount++;
 213     osi_QAdd((osi_queue_t **) &cm_bkgListp, &rp->q);
 214     if (!cm_bkgListEndp)
 215         cm_bkgListEndp = rp;
 216     lock_ReleaseWrite(&cm_daemonLock);
 217
 218     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 219 }
 220
 221 static int
 222 IsWindowsFirewallPresent(void)
 223 {
 224     SC_HANDLE scm;
 225     SC_HANDLE svc;
 226     BOOLEAN flag;
 227     BOOLEAN result = FALSE;
 228     LPQUERY_SERVICE_CONFIG pConfig = NULL;
 229     DWORD BufSize;
 230     LONG status;
 231
 232     /* Open services manager */
 233     scm = OpenSCManager(NULL, NULL, GENERIC_READ);
 234     if (!scm) return FALSE;
 235
 236     /* Open Windows Firewall service */
 237     svc = OpenService(scm, "MpsSvc", SERVICE_QUERY_CONFIG);
 238     if (!svc) {
 239         afsi_log("MpsSvc Service could not be opened for query: 0x%x", GetLastError());
 240         svc = OpenService(scm, "SharedAccess", SERVICE_QUERY_CONFIG);
 241         if (!svc)
 242             afsi_log("SharedAccess Service could not be opened for query: 0x%x", GetLastError());
 243     }
 244     if (!svc)
 245         goto close_scm;
 246
 247     /* Query Windows Firewall service config, first just to get buffer size */
 248     /* Expected to fail, so don't test return value */
 249     (void) QueryServiceConfig(svc, NULL, 0, &BufSize);
 250     status = GetLastError();
 251     if (status != ERROR_INSUFFICIENT_BUFFER)
 252         goto close_svc;
 253
 254     /* Allocate buffer */
 255     pConfig = (LPQUERY_SERVICE_CONFIG)GlobalAlloc(GMEM_FIXED,BufSize);
 256     if (!pConfig)
 257         goto close_svc;
 258
 259     /* Query Windows Firewall service config, this time for real */
 260     flag = QueryServiceConfig(svc, pConfig, BufSize, &BufSize);
 261     if (!flag) {
 262         afsi_log("QueryServiceConfig failed: 0x%x", GetLastError());
 263         goto free_pConfig;
 264     }
 265
 266     /* Is it autostart? */
 267     afsi_log("AutoStart 0x%x", pConfig->dwStartType);
 268     if (pConfig->dwStartType < SERVICE_DEMAND_START)
 269         result = TRUE;
 270
 271   free_pConfig:
 272     GlobalFree(pConfig);
 273   close_svc:
 274     CloseServiceHandle(svc);
 275   close_scm:
 276     CloseServiceHandle(scm);
 277
 278     return result;
 279 }
 280
 281 void
 282 cm_DaemonCheckInit(void)
 283 {
 284     HKEY parmKey;
 285     DWORD dummyLen;
 286     DWORD dummy;
 287     DWORD code;
 288
 289     code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
 290                          0, KEY_QUERY_VALUE, &parmKey);
 291     if (code)
 292         return;
 293
 294     dummyLen = sizeof(DWORD);
 295     code = RegQueryValueEx(parmKey, "daemonCheckDownInterval", NULL, NULL,
 296                             (BYTE *) &dummy, &dummyLen);
 297     if (code == ERROR_SUCCESS && dummy)
 298         cm_daemonCheckDownInterval = dummy;
 299     afsi_log("daemonCheckDownInterval is %d", cm_daemonCheckDownInterval);
 300
 301     dummyLen = sizeof(DWORD);
 302     code = RegQueryValueEx(parmKey, "daemonCheckUpInterval", NULL, NULL,
 303                             (BYTE *) &dummy, &dummyLen);
 304     if (code == ERROR_SUCCESS && dummy)
 305         cm_daemonCheckUpInterval = dummy;
 306     afsi_log("daemonCheckUpInterval is %d", cm_daemonCheckUpInterval);
 307
 308     dummyLen = sizeof(DWORD);
 309     code = RegQueryValueEx(parmKey, "daemonCheckVolInterval", NULL, NULL,
 310                             (BYTE *) &dummy, &dummyLen);
 311     if (code == ERROR_SUCCESS && dummy)
 312         cm_daemonCheckVolInterval = dummy;
 313     afsi_log("daemonCheckVolInterval is %d", cm_daemonCheckVolInterval);
 314
 315     dummyLen = sizeof(DWORD);
 316     code = RegQueryValueEx(parmKey, "daemonCheckCBInterval", NULL, NULL,
 317                             (BYTE *) &dummy, &dummyLen);
 318     if (code == ERROR_SUCCESS && dummy)
 319         cm_daemonCheckCBInterval = dummy;
 320     afsi_log("daemonCheckCBInterval is %d", cm_daemonCheckCBInterval);
 321
 322     dummyLen = sizeof(DWORD);
 323     code = RegQueryValueEx(parmKey, "daemonCheckVolCBInterval", NULL, NULL,
 324                             (BYTE *) &dummy, &dummyLen);
 325     if (code == ERROR_SUCCESS && dummy)
 326         cm_daemonCheckVolCBInterval = dummy;
 327     afsi_log("daemonCheckVolCBInterval is %d", cm_daemonCheckVolCBInterval);
 328
 329     dummyLen = sizeof(DWORD);
 330     code = RegQueryValueEx(parmKey, "daemonCheckLockInterval", NULL, NULL,
 331                             (BYTE *) &dummy, &dummyLen);
 332     if (code == ERROR_SUCCESS && dummy)
 333         cm_daemonCheckLockInterval = dummy;
 334     afsi_log("daemonCheckLockInterval is %d", cm_daemonCheckLockInterval);
 335
 336     dummyLen = sizeof(DWORD);
 337     code = RegQueryValueEx(parmKey, "daemonCheckTokenInterval", NULL, NULL,
 338                             (BYTE *) &dummy, &dummyLen);
 339     if (code == ERROR_SUCCESS && dummy)
 340         cm_daemonTokenCheckInterval = dummy;
 341     afsi_log("daemonCheckTokenInterval is %d", cm_daemonTokenCheckInterval);
 342
 343     dummyLen = sizeof(DWORD);
 344     code = RegQueryValueEx(parmKey, "daemonCheckOfflineVolInterval", NULL, NULL,
 345                             (BYTE *) &dummy, &dummyLen);
 346     if (code == ERROR_SUCCESS && dummy)
 347         cm_daemonCheckOfflineVolInterval = dummy;
 348     afsi_log("daemonCheckOfflineVolInterval is %d", cm_daemonCheckOfflineVolInterval);
 349
 350     dummyLen = sizeof(DWORD);
 351     code = RegQueryValueEx(parmKey, "daemonPerformanceTuningInterval", NULL, NULL,
 352                             (BYTE *) &dummy, &dummyLen);
 353     if (code == ERROR_SUCCESS)
 354         cm_daemonPerformanceTuningInterval = dummy;
 355     afsi_log("daemonPerformanceTuningInterval is %d", cm_daemonPerformanceTuningInterval);
 356
 357     dummyLen = sizeof(DWORD);
 358     code = RegQueryValueEx(parmKey, "daemonRankServerInterval", NULL, NULL,
 359                             (BYTE *) &dummy, &dummyLen);
 360     if (code == ERROR_SUCCESS && dummy)
 361         cm_daemonRankServerInterval = dummy;
 362     afsi_log("daemonRankServerInterval is %d", cm_daemonRankServerInterval);
 363
 364     RegCloseKey(parmKey);
 365
 366     if (cm_daemonPerformanceTuningInterval)
 367         cm_PerformanceTuningInit();
 368 }
 369
 370 /* periodic lock check daemon */
 371 void cm_LockDaemon(long parm)
 372 {
 373     time_t now;
 374     time_t lastLockCheck;
 375     char * name = "cm_LockDaemon_ShutdownEvent";
 376
 377     cm_LockDaemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 378     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 379         afsi_log("Event Object Already Exists: %s", name);
 380
 381     now = osi_Time();
 382     lastLockCheck = now - cm_daemonCheckLockInterval/2 + (rand() % cm_daemonCheckLockInterval);
 383
 384     while (daemon_ShutdownFlag == 0) {
 385         if (powerStateSuspended) {
 386             Sleep(1000);
 387             continue;
 388         }
 389
 390         now = osi_Time();
 391
 392         if (now > lastLockCheck + cm_daemonCheckLockInterval &&
 393             daemon_ShutdownFlag == 0 &&
 394             powerStateSuspended == 0) {
 395             lastLockCheck = now;
 396             cm_CheckLocks();
 397             if (daemon_ShutdownFlag == 1)
 398                 break;
 399         }
 400
 401         thrd_Sleep(1000);               /* sleep 1 second */
 402     }
 403     thrd_SetEvent(cm_LockDaemon_ShutdownEvent);
 404 }
 405
 406 /* periodic check daemon */
 407 void cm_Daemon(long parm)
 408 {
 409     time_t now;
 410     time_t lastVolCheck;
 411     time_t lastCBExpirationCheck;
 412     time_t lastVolCBRenewalCheck;
 413     time_t lastDownServerCheck;
 414     time_t lastUpServerCheck;
 415     time_t lastTokenCacheCheck;
 416     time_t lastBusyVolCheck;
 417     time_t lastPerformanceCheck;
 418     time_t lastServerRankCheck;
 419     char thostName[200];
 420     unsigned long code;
 421     struct hostent *thp;
 422     HMODULE hHookDll;
 423     char * name = "cm_Daemon_ShutdownEvent";
 424     int configureFirewall = IsWindowsFirewallPresent();
 425     int bAddrChangeCheck = 0;
 426
 427     cm_Daemon_ShutdownEvent = thrd_CreateEvent(NULL, FALSE, FALSE, name);
 428     if ( GetLastError() == ERROR_ALREADY_EXISTS )
 429         afsi_log("Event Object Already Exists: %s", name);
 430
 431     if (!configureFirewall) {
 432         afsi_log("No Windows Firewall detected");
 433     }
 434
 435     if (cm_freelanceEnabled && cm_freelanceImportCellServDB)
 436         cm_FreelanceImportCellServDB();
 437
 438     /* ping all file servers, up or down, with unauthenticated connection,
 439      * to find out whether we have all our callbacks from the server still.
 440      * Also, ping down VLDBs.
 441      */
 442     /*
 443      * Seed the random number generator with our own address, so that
 444      * clients starting at the same time don't all do vol checks at the
 445      * same time.
 446      */
 447     gethostname(thostName, sizeof(thostName));
 448     thp = gethostbyname(thostName);
 449     if (thp == NULL)    /* In djgpp, gethostname returns the netbios
 450                            name of the machine.  gethostbyname will fail
 451                            looking this up if it differs from DNS name. */
 452         code = 0;
 453     else
 454         memcpy(&code, thp->h_addr_list[0], 4);
 455
 456     srand(ntohl(code));
 457
 458     cm_DaemonCheckInit();
 459
 460     now = osi_Time();
 461     lastVolCheck = now - cm_daemonCheckVolInterval/2 + (rand() % cm_daemonCheckVolInterval);
 462     lastCBExpirationCheck = now - cm_daemonCheckCBInterval/2 + (rand() % cm_daemonCheckCBInterval);
 463     if (cm_daemonCheckVolCBInterval)
 464         lastVolCBRenewalCheck = now - cm_daemonCheckVolCBInterval/2 + (rand() % cm_daemonCheckVolCBInterval);
 465     lastDownServerCheck = now - cm_daemonCheckDownInterval/2 + (rand() % cm_daemonCheckDownInterval);
 466     lastUpServerCheck = now - cm_daemonCheckUpInterval/2 + (rand() % cm_daemonCheckUpInterval);
 467     lastTokenCacheCheck = now - cm_daemonTokenCheckInterval/2 + (rand() % cm_daemonTokenCheckInterval);
 468     lastBusyVolCheck = now - cm_daemonCheckOfflineVolInterval/2 * (rand() % cm_daemonCheckOfflineVolInterval);
 469     if (cm_daemonPerformanceTuningInterval)
 470         lastPerformanceCheck = now - cm_daemonPerformanceTuningInterval/2 * (rand() % cm_daemonPerformanceTuningInterval);
 471     lastServerRankCheck = now - cm_daemonRankServerInterval/2 * (rand() % cm_daemonRankServerInterval);
 472
 473     while (daemon_ShutdownFlag == 0) {
 474         if (powerStateSuspended) {
 475             Sleep(1000);
 476             continue;
 477         }
 478         /* check to see if the listener threads halted due to network
 479          * disconnect or other issues.  If so, attempt to restart them.
 480          */
 481         smb_RestartListeners(0);
 482
 483         if (daemon_ShutdownFlag == 1)
 484             break;
 485
 486         if (configureFirewall) {
 487             /* Open Microsoft Firewall to allow in port 7001 */
 488             switch (icf_CheckAndAddAFSPorts(AFS_PORTSET_CLIENT)) {
 489             case 0:
 490                 afsi_log("Windows Firewall Configuration succeeded");
 491                 configureFirewall = 0;
 492                 break;
 493             case 1:
 494                 afsi_log("Invalid Windows Firewall Port Set");
 495                 break;
 496             case 2:
 497                 afsi_log("Unable to open Windows Firewall Profile");
 498                 break;
 499             case 3:
 500                 afsi_log("Unable to create/modify Windows Firewall Port entries");
 501                 break;
 502             default:
 503                 afsi_log("Unknown Windows Firewall Configuration error");
 504             }
 505         }
 506
 507         /* find out what time it is */
 508         now = osi_Time();
 509
 510         /* Determine whether an address change took place that we need to respond to */
 511         if (bAddrChangeCheck)
 512             bAddrChangeCheck = 0;
 513
 514         if (lastIPAddrChange != 0 && lastIPAddrChange + 2500 < now) {
 515             bAddrChangeCheck = 1;
 516             lastIPAddrChange = 0;
 517         }
 518
 519         /* check down servers */
 520         if ((bAddrChangeCheck || now > lastDownServerCheck + cm_daemonCheckDownInterval) &&
 521             daemon_ShutdownFlag == 0 &&
 522             powerStateSuspended == 0) {
 523             lastDownServerCheck = now;
 524             osi_Log0(afsd_logp, "cm_Daemon CheckDownServers");
 525             cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, NULL);
 526             if (daemon_ShutdownFlag == 1)
 527                 break;
 528             now = osi_Time();
 529         }
 530
 531         if (bAddrChangeCheck &&
 532             daemon_ShutdownFlag == 0 &&
 533             powerStateSuspended == 0) {
 534             cm_ForceNewConnectionsAllServers();
 535         }
 536
 537         /* check up servers */
 538         if ((bAddrChangeCheck || now > lastUpServerCheck + cm_daemonCheckUpInterval) &&
 539             daemon_ShutdownFlag == 0 &&
 540             powerStateSuspended == 0) {
 541             lastUpServerCheck = now;
 542             osi_Log0(afsd_logp, "cm_Daemon CheckUpServers");
 543             cm_CheckServers(CM_FLAG_CHECKUPSERVERS, NULL);
 544             if (daemon_ShutdownFlag == 1)
 545                 break;
 546             now = osi_Time();
 547         }
 548
 549         if (bAddrChangeCheck &&
 550             daemon_ShutdownFlag == 0 &&
 551             powerStateSuspended == 0) {
 552             smb_CheckVCs();
 553             cm_VolStatus_Network_Addr_Change();
 554         }
 555
 556         /*
 557          * Once every five minutes inspect the volume list and enforce
 558          * the volume location expiration time.
 559          */
 560         if (now > lastVolCheck + 300 &&
 561             daemon_ShutdownFlag == 0 &&
 562             powerStateSuspended == 0) {
 563             lastVolCheck = now;
 564             cm_RefreshVolumes(cm_daemonCheckVolInterval);
 565             if (daemon_ShutdownFlag == 1)
 566                 break;
 567             now = osi_Time();
 568         }
 569
 570         /* Rank all up servers */
 571         if ((now > lastServerRankCheck + cm_daemonRankServerInterval) &&
 572             daemon_ShutdownFlag == 0 &&
 573             powerStateSuspended == 0) {
 574             lastServerRankCheck = now;
 575             osi_Log0(afsd_logp, "cm_Daemon RankServer");
 576             cm_RankUpServers();
 577             if(daemon_ShutdownFlag == 1)
 578                 break;
 579             now = osi_Time();
 580         }
 581
 582         if (cm_daemonCheckVolCBInterval &&
 583             now > lastVolCBRenewalCheck + cm_daemonCheckVolCBInterval &&
 584             daemon_ShutdownFlag == 0 &&
 585             powerStateSuspended == 0) {
 586             lastVolCBRenewalCheck = now;
 587             cm_VolumeRenewROCallbacks();
 588             if (daemon_ShutdownFlag == 1)
 589                 break;
 590             now = osi_Time();
 591         }
 592
 593         if ((bAddrChangeCheck || now > lastBusyVolCheck + cm_daemonCheckOfflineVolInterval) &&
 594             daemon_ShutdownFlag == 0 &&
 595             powerStateSuspended == 0) {
 596             lastBusyVolCheck = now;
 597             cm_CheckOfflineVolumes();
 598             if (daemon_ShutdownFlag == 1)
 599                 break;
 600             now = osi_Time();
 601         }
 602
 603         if (now > lastCBExpirationCheck + cm_daemonCheckCBInterval &&
 604             daemon_ShutdownFlag == 0 &&
 605             powerStateSuspended == 0) {
 606             lastCBExpirationCheck = now;
 607             cm_CheckCBExpiration();
 608             if (daemon_ShutdownFlag == 1)
 609                 break;
 610             now = osi_Time();
 611         }
 612
 613         if (now > lastTokenCacheCheck + cm_daemonTokenCheckInterval &&
 614             daemon_ShutdownFlag == 0 &&
 615             powerStateSuspended == 0) {
 616             lastTokenCacheCheck = now;
 617             cm_CheckTokenCache(now);
 618             if (daemon_ShutdownFlag == 1)
 619                 break;
 620             now = osi_Time();
 621         }
 622
 623         /* allow an exit to be called prior to stopping the service */
 624         hHookDll = cm_LoadAfsdHookLib();
 625         if (hHookDll)
 626         {
 627             BOOL hookRc = TRUE;
 628             AfsdDaemonHook daemonHook = ( AfsdDaemonHook ) GetProcAddress(hHookDll, AFSD_DAEMON_HOOK);
 629             if (daemonHook)
 630             {
 631                 hookRc = daemonHook();
 632             }
 633             FreeLibrary(hHookDll);
 634             hHookDll = NULL;
 635
 636             if (hookRc == FALSE)
 637             {
 638                 SetEvent(WaitToTerminate);
 639             }
 640
 641             if (daemon_ShutdownFlag == 1) {
 642                 break;
 643             }
 644             now = osi_Time();
 645         }
 646
 647         if (cm_daemonPerformanceTuningInterval &&
 648             now > lastPerformanceCheck + cm_daemonPerformanceTuningInterval &&
 649             daemon_ShutdownFlag == 0 &&
 650             powerStateSuspended == 0) {
 651             lastPerformanceCheck = now;
 652             cm_PerformanceTuningCheck();
 653             if (daemon_ShutdownFlag == 1)
 654                 break;
 655             now = osi_Time();
 656         }
 657
 658         /*
 659          * sleep .5 seconds.  if the thread blocks for a long time
 660          * we risk not being able to close the cache before Windows
 661          * kills our process during system shutdown.
 662          */
 663         thrd_Sleep(500);
 664     }
 665
 666     thrd_SetEvent(cm_Daemon_ShutdownEvent);
 667 }
 668
 669 void cm_DaemonShutdown(void)
 670 {
 671     int i;
 672     DWORD code;
 673
 674     daemon_ShutdownFlag = 1;
 675     osi_Wakeup((LONG_PTR) &cm_bkgListp);
 676
 677     /* wait for shutdown */
 678     for ( i=0; i<cm_nDaemons; i++) {
 679         if (cm_BkgDaemon_ShutdownEvent[i])
 680             code = thrd_WaitForSingleObject_Event(cm_BkgDaemon_ShutdownEvent[i], INFINITE);
 681     }
 682
 683     if (cm_Daemon_ShutdownEvent)
 684         code = thrd_WaitForSingleObject_Event(cm_Daemon_ShutdownEvent, INFINITE);
 685
 686     if (cm_LockDaemon_ShutdownEvent)
 687         code = thrd_WaitForSingleObject_Event(cm_LockDaemon_ShutdownEvent, INFINITE);
 688
 689 #if 0
 690     /*
 691      * Do not waste precious time waiting for the ipaddr daemon to shutdown.
 692      * When it does it means we have lost our network connection and we need
 693      * it during cache shutdown in order to notify the file servers that this
 694      * client is giving up all callbacks.
 695      */
 696     if (cm_IPAddrDaemon_ShutdownEvent)
 697         code = thrd_WaitForSingleObject_Event(cm_IPAddrDaemon_ShutdownEvent, INFINITE);
 698 #endif
 699 }
 700
 701 void cm_InitDaemon(int nDaemons)
 702 {
 703     static osi_once_t once;
 704     long pid;
 705     thread_t phandle;
 706     int i;
 707
 708     cm_nDaemons = (nDaemons > CM_MAX_DAEMONS) ? CM_MAX_DAEMONS : nDaemons;
 709
 710     if (osi_Once(&once)) {
 711         lock_InitializeRWLock(&cm_daemonLock, "cm_daemonLock",
 712                                LOCK_HIERARCHY_DAEMON_GLOBAL);
 713         osi_EndOnce(&once);
 714
 715         /* creating IP Address Change monitor daemon */
 716         phandle = thrd_Create((SecurityAttrib) 0, 0,
 717                                (ThreadFunc) cm_IpAddrDaemon, 0, 0, &pid, "cm_IpAddrDaemon");
 718         osi_assertx(phandle != NULL, "cm_IpAddrDaemon thread creation failure");
 719         thrd_CloseHandle(phandle);
 720
 721         /* creating pinging daemon */
 722         phandle = thrd_Create((SecurityAttrib) 0, 0,
 723                                (ThreadFunc) cm_Daemon, 0, 0, &pid, "cm_Daemon");
 724         osi_assertx(phandle != NULL, "cm_Daemon thread creation failure");
 725         thrd_CloseHandle(phandle);
 726
 727         phandle = thrd_Create((SecurityAttrib) 0, 0,
 728                                (ThreadFunc) cm_LockDaemon, 0, 0, &pid, "cm_LockDaemon");
 729         osi_assertx(phandle != NULL, "cm_LockDaemon thread creation failure");
 730         thrd_CloseHandle(phandle);
 731
 732         for(i=0; i < cm_nDaemons; i++) {
 733             phandle = thrd_Create((SecurityAttrib) 0, 0,
 734                                    (ThreadFunc) cm_BkgDaemon, (LPVOID)(LONG_PTR)i, 0, &pid,
 735                                    "cm_BkgDaemon");
 736             osi_assertx(phandle != NULL, "cm_BkgDaemon thread creation failure");
 737             thrd_CloseHandle(phandle);
 738         }
 739     }
 740 }