2 * Copyright 2000, International Business Machines Corporation and others.
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
10 #include <afs/param.h>
20 #include <afs/unified_afs.h>
21 #include <afs/vlserver.h>
22 #include <WINNT/afsreg.h>
24 osi_rwlock_t cm_connLock;
26 DWORD RDRtimeout = CM_CONN_DEFAULTRDRTIMEOUT;
27 unsigned short ConnDeadtimeout = CM_CONN_CONNDEADTIME;
28 unsigned short HardDeadtimeout = CM_CONN_HARDDEADTIME;
29 unsigned short IdleDeadtimeout = CM_CONN_IDLEDEADTIME;
31 #define LANMAN_WKS_PARAM_KEY "SYSTEM\\CurrentControlSet\\Services\\lanmanworkstation\\parameters"
32 #define LANMAN_WKS_SESSION_TIMEOUT "SessTimeout"
34 afs_uint32 cryptall = 0;
35 afs_uint32 cm_anonvldb = 0;
37 void cm_PutConn(cm_conn_t *connp)
39 afs_int32 refCount = InterlockedDecrement(&connp->refCount);
40 osi_assertx(refCount >= 0, "cm_conn_t refcount underflow");
43 void cm_InitConn(void)
45 static osi_once_t once;
51 if (osi_Once(&once)) {
52 lock_InitializeRWLock(&cm_connLock, "connection global lock",
53 LOCK_HIERARCHY_CONN_GLOBAL);
55 /* keisa - read timeout value for lanmanworkstation service.
57 * http://support.microsoft.com:80/support/kb/articles/Q102/0/67.asp&NoWebContent=1
58 * the SessTimeout is a minimum timeout not a maximum timeout. Therefore,
59 * I believe that the default should not be short. Instead, we should wait until
60 * RX times out before reporting a timeout to the SMB client.
62 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, LANMAN_WKS_PARAM_KEY,
63 0, KEY_QUERY_VALUE, &parmKey);
64 if (code == ERROR_SUCCESS)
66 dummyLen = sizeof(DWORD);
67 code = RegQueryValueEx(parmKey, LANMAN_WKS_SESSION_TIMEOUT, NULL, NULL,
68 (BYTE *) &dwValue, &dummyLen);
69 if (code == ERROR_SUCCESS)
74 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
75 0, KEY_QUERY_VALUE, &parmKey);
76 if (code == ERROR_SUCCESS) {
77 dummyLen = sizeof(DWORD);
78 code = RegQueryValueEx(parmKey, "ConnDeadTimeout", NULL, NULL,
79 (BYTE *) &dwValue, &dummyLen);
80 if (code == ERROR_SUCCESS) {
81 ConnDeadtimeout = (unsigned short)dwValue;
82 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
84 dummyLen = sizeof(DWORD);
85 code = RegQueryValueEx(parmKey, "HardDeadTimeout", NULL, NULL,
86 (BYTE *) &dwValue, &dummyLen);
87 if (code == ERROR_SUCCESS) {
88 HardDeadtimeout = (unsigned short)dwValue;
89 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
91 dummyLen = sizeof(DWORD);
92 code = RegQueryValueEx(parmKey, "IdleDeadTimeout", NULL, NULL,
93 (BYTE *) &dwValue, &dummyLen);
94 if (code == ERROR_SUCCESS) {
95 IdleDeadtimeout = (unsigned short)dwValue;
96 afsi_log("IdleDeadTimeout is %d", IdleDeadtimeout);
101 afsi_log("lanmanworkstation : SessTimeout %u", RDRtimeout);
102 if (ConnDeadtimeout == 0) {
103 ConnDeadtimeout = (unsigned short) (RDRtimeout / 2);
104 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
106 if (HardDeadtimeout == 0) {
107 HardDeadtimeout = (unsigned short) RDRtimeout;
108 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
110 if (IdleDeadtimeout == 0) {
111 IdleDeadtimeout = (unsigned short) RDRtimeout;
112 afsi_log("IdleDeadTimeout is %d", IdleDeadtimeout);
118 void cm_InitReq(cm_req_t *reqp)
120 memset((char *)reqp, 0, sizeof(cm_req_t));
121 reqp->startTime = GetTickCount();
124 static long cm_GetServerList(struct cm_fid *fidp, struct cm_user *userp,
125 struct cm_req *reqp, cm_serverRef_t ***serversppp)
128 cm_volume_t *volp = NULL;
129 cm_cell_t *cellp = NULL;
133 return CM_ERROR_INVAL;
136 cellp = cm_FindCellByID(fidp->cell, 0);
138 return CM_ERROR_NOSUCHCELL;
140 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp, CM_GETVOL_FLAG_CREATE, &volp);
144 *serversppp = cm_GetVolServers(volp, fidp->volume, userp, reqp);
146 lock_ObtainRead(&cm_volumeLock);
148 lock_ReleaseRead(&cm_volumeLock);
149 return (*serversppp ? 0 : CM_ERROR_NOSUCHVOLUME);
153 * Analyze the error return from an RPC. Determine whether or not to retry,
154 * and if we're going to retry, determine whether failover is appropriate,
155 * and whether timed backoff is appropriate.
157 * If the error code is from cm_ConnFromFID() or friends, it will be a CM_ERROR code.
158 * Otherwise it will be an RPC code. This may be a UNIX code (e.g. EDQUOT), or
159 * it may be an RX code, or it may be a special code (e.g. VNOVOL), or it may
160 * be a security code (e.g. RXKADEXPIRED).
162 * If the error code is from cm_ConnFromFID() or friends, connp will be NULL.
164 * For VLDB calls, fidp will be NULL.
166 * volSyncp and/or cbrp may also be NULL.
169 cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
171 AFSVolSync *volSyncp,
172 cm_serverRef_t * serversp,
173 cm_callbackRequest_t *cbrp, long errorCode)
175 cm_server_t *serverp = NULL;
176 cm_serverRef_t **serverspp = NULL;
177 cm_serverRef_t *tsrp;
178 cm_cell_t *cellp = NULL;
180 cm_volume_t * volp = NULL;
181 cm_vol_state_t *statep = NULL;
183 int free_svr_list = 0;
185 long timeUsed, timeLeft;
187 char addr[16]="unknown";
190 osi_Log2(afsd_logp, "cm_Analyze connp 0x%p, code 0x%x",
193 /* no locking required, since connp->serverp never changes after
195 dead_session = (userp->cellInfop == NULL);
197 serverp = connp->serverp;
199 /* Update callback pointer */
200 if (cbrp && serverp && errorCode == 0) {
202 if ( cbrp->serverp != serverp ) {
203 lock_ObtainWrite(&cm_serverLock);
204 cm_PutServerNoLock(cbrp->serverp);
205 cm_GetServerNoLock(serverp);
206 lock_ReleaseWrite(&cm_serverLock);
209 cm_GetServer(serverp);
211 lock_ObtainWrite(&cm_callbackLock);
212 cbrp->serverp = serverp;
213 lock_ReleaseWrite(&cm_callbackLock);
216 /* if timeout - check that it did not exceed the HardDead timeout
219 /* timeleft - get if from reqp the same way as cmXonnByMServers does */
220 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
222 /* leave 5 seconds margin for sleep */
223 if (reqp->flags & CM_REQ_NORETRY)
226 timeLeft = HardDeadtimeout - timeUsed;
228 /* get a pointer to the cell */
230 if (cellp == NULL && serverp)
231 cellp = serverp->cellp;
232 if (cellp == NULL && serversp) {
233 struct cm_serverRef * refp;
234 for ( refp=serversp ; cellp == NULL && refp != NULL; refp=refp->next) {
235 if (refp->status == srv_deleted)
238 cellp = refp->server->cellp;
241 if (cellp == NULL && fidp) {
242 cellp = cm_FindCellByID(fidp->cell, 0);
246 if (errorCode == CM_ERROR_TIMEDOUT) {
247 if ( timeLeft > 5 ) {
249 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
254 else if (errorCode == UAEWOULDBLOCK || errorCode == EWOULDBLOCK ||
255 errorCode == UAEAGAIN || errorCode == EAGAIN) {
256 osi_Log0(afsd_logp, "cm_Analyze passed EWOULDBLOCK or EAGAIN.");
257 if ( timeLeft > 5 ) {
263 /* if there is nosuchvolume, then we have a situation in which a
264 * previously known volume no longer has a set of servers
265 * associated with it. Either the volume has moved or
266 * the volume has been deleted. Try to find a new server list
267 * until the timeout period expires.
269 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
270 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
272 * The VNOVOL or VL_NOENT error has already been translated
273 * to CM_ERROR_NOSUCHVOLUME. There is nothing for us to do.
277 else if (errorCode == CM_ERROR_ALLDOWN) {
278 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
279 /* Servers marked DOWN will be restored by the background daemon
280 * thread as they become available. The volume status is
281 * updated as the server state changes.
285 else if (errorCode == CM_ERROR_ALLOFFLINE) {
286 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
287 /* Volume instances marked offline will be restored by the
288 * background daemon thread as they become available
291 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
292 CM_GETVOL_FLAG_NO_LRU_UPDATE,
298 /* cm_CheckOfflineVolume() resets the serverRef state */
299 if (cm_CheckOfflineVolume(volp, fidp->volume))
302 cm_UpdateVolumeStatus(volp, fidp->volume);
304 lock_ObtainRead(&cm_volumeLock);
306 lock_ReleaseRead(&cm_volumeLock);
311 else if (errorCode == CM_ERROR_ALLBUSY) {
312 /* Volumes that are busy cannot be determined to be non-busy
313 * without actually attempting to access them.
315 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
317 if (fidp) { /* File Server query */
318 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
319 CM_GETVOL_FLAG_NO_LRU_UPDATE,
325 statep = cm_VolumeStateByID(volp, fidp->volume);
326 if (statep->state != vl_offline &&
327 statep->state != vl_busy &&
328 statep->state != vl_unknown) {
332 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
334 serversp = *serverspp;
338 lock_ObtainWrite(&cm_serverLock);
339 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
340 if (tsrp->status == srv_deleted)
342 if (tsrp->status == srv_busy) {
343 tsrp->status = srv_not_busy;
346 lock_ReleaseWrite(&cm_serverLock);
348 cm_FreeServerList(serverspp, 0);
354 cm_UpdateVolumeStatus(volp, fidp->volume);
358 cm_UpdateVolumeStatus(volp, fidp->volume);
361 lock_ObtainRead(&cm_volumeLock);
363 lock_ReleaseRead(&cm_volumeLock);
366 } else { /* VL Server query */
371 lock_ObtainWrite(&cm_serverLock);
372 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
373 if (tsrp->status == srv_deleted)
375 if (tsrp->status == srv_busy) {
376 tsrp->status = srv_not_busy;
379 lock_ReleaseWrite(&cm_serverLock);
386 /* special codes: VBUSY and VRESTARTING */
387 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
388 if (!serversp && fidp) {
389 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
391 serversp = *serverspp;
395 lock_ObtainWrite(&cm_serverLock);
396 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
397 if (tsrp->status == srv_deleted)
399 if (tsrp->server == serverp && tsrp->status == srv_not_busy) {
400 tsrp->status = srv_busy;
401 if (fidp) { /* File Server query */
402 lock_ReleaseWrite(&cm_serverLock);
403 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
404 CM_GETVOL_FLAG_NO_LRU_UPDATE,
407 statep = cm_VolumeStateByID(volp, fidp->volume);
408 lock_ObtainWrite(&cm_serverLock);
413 lock_ReleaseWrite(&cm_serverLock);
416 cm_UpdateVolumeStatus(volp, statep->ID);
417 lock_ObtainRead(&cm_volumeLock);
419 lock_ReleaseRead(&cm_volumeLock);
424 cm_FreeServerList(serverspp, 0);
432 /* special codes: missing volumes */
433 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
434 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
440 /* In case of timeout */
441 reqp->volumeError = errorCode;
443 switch ( errorCode ) {
445 msgID = MSG_SERVER_REPORTS_VNOVOL;
446 format = "Server %s reported volume %d as not attached (does not exist).";
449 msgID = MSG_SERVER_REPORTS_VMOVED;
450 format = "Server %s reported volume %d as moved.";
453 msgID = MSG_SERVER_REPORTS_VOFFLINE;
454 format = "Server %s reported volume %d as offline.";
457 msgID = MSG_SERVER_REPORTS_VSALVAGE;
458 format = "Server %s reported volume %d as needs salvage.";
461 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
462 format = "Server %s reported volume %d as not in service.";
465 msgID = MSG_SERVER_REPORTS_VIO;
466 format = "Server %s reported volume %d as temporarily unaccessible.";
470 if (serverp && fidp) {
471 /* Log server being offline for this volume */
472 sprintf(addr, "%d.%d.%d.%d",
473 ((serverp->addr.sin_addr.s_addr & 0xff)),
474 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
475 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
476 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
478 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
479 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
483 * Mark server offline for this volume or delete the volume
484 * from the server list if it was moved or is not present.
486 if (!serversp && fidp) {
487 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
489 serversp = *serverspp;
494 lock_ObtainWrite(&cm_serverLock);
495 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
496 if (tsrp->status == srv_deleted)
499 sprintf(addr, "%d.%d.%d.%d",
500 ((tsrp->server->addr.sin_addr.s_addr & 0xff)),
501 ((tsrp->server->addr.sin_addr.s_addr & 0xff00)>> 8),
502 ((tsrp->server->addr.sin_addr.s_addr & 0xff0000)>> 16),
503 ((tsrp->server->addr.sin_addr.s_addr & 0xff000000)>> 24));
505 if (tsrp->server == serverp) {
507 if (errorCode == VMOVED || errorCode == VNOVOL) {
508 osi_Log2(afsd_logp, "volume %d not present on server %s",
509 fidp->volume, osi_LogSaveString(afsd_logp,addr));
510 tsrp->status = srv_deleted;
512 cm_RemoveVolumeFromServer(serverp, fidp->volume);
514 osi_Log2(afsd_logp, "volume %d instance on server %s marked offline",
515 fidp->volume, osi_LogSaveString(afsd_logp,addr));
516 tsrp->status = srv_offline;
520 osi_Log3(afsd_logp, "volume %d exists on server %s with status %u",
521 fidp->volume, osi_LogSaveString(afsd_logp,addr), tsrp->status);
524 lock_ReleaseWrite(&cm_serverLock);
526 /* Free the server list before cm_ForceUpdateVolume is called */
528 cm_FreeServerList(serverspp, 0);
534 if (fidp) { /* File Server query */
535 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
536 CM_GETVOL_FLAG_NO_LRU_UPDATE,
539 statep = cm_VolumeStateByID(volp, fidp->volume);
541 if ((errorCode == VMOVED || errorCode == VNOVOL) &&
542 !(reqp->flags & CM_REQ_VOLUME_UPDATED))
544 code = cm_ForceUpdateVolume(fidp, userp, reqp);
546 timeLeft = 0; /* prevent a retry on failure */
548 reqp->flags |= CM_REQ_VOLUME_UPDATED;
549 osi_Log3(afsd_logp, "cm_Analyze called cm_ForceUpdateVolume cell %u vol %u code 0x%x",
550 fidp->cell, fidp->volume, code);
554 cm_UpdateVolumeStatus(volp, statep->ID);
555 osi_Log3(afsd_logp, "cm_Analyze NewVolState cell %u vol %u state %u",
556 fidp->cell, fidp->volume, statep->state);
560 lock_ObtainRead(&cm_volumeLock);
562 lock_ReleaseRead(&cm_volumeLock);
569 } else if ( errorCode == VNOVNODE ) {
572 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
573 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
575 scp = cm_FindSCache(fidp);
577 cm_scache_t *pscp = NULL;
579 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
580 pscp = cm_FindSCacheParent(scp);
582 lock_ObtainWrite(&scp->rw);
583 lock_ObtainWrite(&cm_scacheLock);
584 cm_RemoveSCacheFromHashTable(scp);
585 lock_ReleaseWrite(&cm_scacheLock);
586 cm_LockMarkSCacheLost(scp);
587 scp->flags |= CM_SCACHEFLAG_DELETED;
588 lock_ReleaseWrite(&scp->rw);
589 cm_ReleaseSCache(scp);
592 if (cm_HaveCallback(pscp)) {
593 lock_ObtainWrite(&pscp->rw);
594 cm_DiscardSCache(pscp);
595 lock_ReleaseWrite(&pscp->rw);
597 cm_ReleaseSCache(pscp);
601 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
606 else if (errorCode == RX_CALL_TIMEOUT) {
607 /* RPC took longer than hardDeadTime or the server
608 * reported idle for longer than idleDeadTime
609 * don't mark server as down but don't retry
610 * this is to prevent the SMB session from timing out
611 * In addition, we log an event to the event log
615 /* Log server being offline for this volume */
616 sprintf(addr, "%d.%d.%d.%d",
617 ((serverp->addr.sin_addr.s_addr & 0xff)),
618 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
619 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
620 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
622 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
624 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime or idleDeadTime exceeded addr[%s]",
625 osi_LogSaveString(afsd_logp,addr));
626 reqp->tokenIdleErrorServp = serverp;
630 else if (errorCode >= -64 && errorCode < 0) {
631 /* mark server as down */
632 lock_ObtainMutex(&serverp->mx);
633 if (reqp->flags & CM_REQ_NEW_CONN_FORCED) {
634 if (!(serverp->flags & CM_SERVERFLAG_DOWN)) {
635 serverp->flags |= CM_SERVERFLAG_DOWN;
636 serverp->downTime = time(NULL);
639 reqp->flags |= CM_REQ_NEW_CONN_FORCED;
642 lock_ReleaseMutex(&serverp->mx);
643 cm_ForceNewConnections(serverp);
647 else if (errorCode == RXKADEXPIRED) {
649 lock_ObtainMutex(&userp->mx);
650 ucellp = cm_GetUCell(userp, serverp->cellp);
651 if (ucellp->ticketp) {
652 free(ucellp->ticketp);
653 ucellp->ticketp = NULL;
655 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
657 lock_ReleaseMutex(&userp->mx);
661 } else if (errorCode >= ERROR_TABLE_BASE_RXK && errorCode < ERROR_TABLE_BASE_RXK + 256) {
663 reqp->tokenIdleErrorServp = serverp;
664 reqp->tokenError = errorCode;
667 } else if (errorCode >= ERROR_TABLE_BASE_U && errorCode < ERROR_TABLE_BASE_U + 256) {
669 * We received a ubik error. its possible that the server we are
670 * communicating with has a corrupted database or is partitioned
671 * from the rest of the servers and another server might be able
672 * to answer our query. Therefore, we will retry the request
673 * and force the use of another server.
676 reqp->tokenIdleErrorServp = serverp;
677 reqp->tokenError = errorCode;
680 } else if (errorCode == VICECONNBAD || errorCode == VICETOKENDEAD) {
681 cm_ForceNewConnections(serverp);
686 char * s = "unknown error";
687 switch ( errorCode ) {
688 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
689 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
690 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
691 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
692 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
693 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
694 case RXKADBADKEY : s = "RXKADBADKEY"; break;
695 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
696 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
697 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
698 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
699 case RXKADDATALEN : s = "RXKADDATALEN"; break;
700 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
701 case VSALVAGE : s = "VSALVAGE"; break;
702 case VNOVNODE : s = "VNOVNODE"; break;
703 case VNOVOL : s = "VNOVOL"; break;
704 case VVOLEXISTS : s = "VVOLEXISTS"; break;
705 case VNOSERVICE : s = "VNOSERVICE"; break;
706 case VOFFLINE : s = "VOFFLINE"; break;
707 case VONLINE : s = "VONLINE"; break;
708 case VDISKFULL : s = "VDISKFULL"; break;
709 case VOVERQUOTA : s = "VOVERQUOTA"; break;
710 case VBUSY : s = "VBUSY"; break;
711 case VMOVED : s = "VMOVED"; break;
712 case VIO : s = "VIO"; break;
713 case VRESTRICTED : s = "VRESTRICTED"; break;
714 case VRESTARTING : s = "VRESTARTING"; break;
715 case VREADONLY : s = "VREADONLY"; break;
716 case EAGAIN : s = "EAGAIN"; break;
717 case UAEAGAIN : s = "UAEAGAIN"; break;
718 case EINVAL : s = "EINVAL"; break;
719 case UAEINVAL : s = "UAEINVAL"; break;
720 case EACCES : s = "EACCES"; break;
721 case UAEACCES : s = "UAEACCES"; break;
722 case ENOENT : s = "ENOENT"; break;
723 case UAENOENT : s = "UAENOENT"; break;
724 case EEXIST : s = "EEXIST"; break;
725 case UAEEXIST : s = "UAEEXIST"; break;
726 case VICECONNBAD : s = "VICECONNBAD"; break;
727 case VICETOKENDEAD : s = "VICETOKENDEAD"; break;
728 case WSAEWOULDBLOCK : s = "WSAEWOULDBLOCK"; break;
729 case UAEWOULDBLOCK : s = "UAEWOULDBLOCK"; break;
730 case VL_IDEXIST : s = "VL_IDEXIST"; break;
731 case VL_IO : s = "VL_IO"; break;
732 case VL_NAMEEXIST : s = "VL_NAMEEXIST"; break;
733 case VL_CREATEFAIL : s = "VL_CREATEFAIL"; break;
734 case VL_NOENT : s = "VL_NOENT"; break;
735 case VL_EMPTY : s = "VL_EMPTY"; break;
736 case VL_ENTDELETED : s = "VL_ENTDELETED"; break;
737 case VL_BADNAME : s = "VL_BADNAME"; break;
738 case VL_BADINDEX : s = "VL_BADINDEX"; break;
739 case VL_BADVOLTYPE : s = "VL_BADVOLTYPE"; break;
740 case VL_BADSERVER : s = "VL_BADSERVER"; break;
741 case VL_BADPARTITION : s = "VL_BADPARTITION"; break;
742 case VL_REPSFULL : s = "VL_REPSFULL"; break;
743 case VL_NOREPSERVER : s = "VL_NOREPSERVER"; break;
744 case VL_DUPREPSERVER : s = "VL_DUPREPSERVER"; break;
745 case VL_RWNOTFOUND : s = "VL_RWNOTFOUND"; break;
746 case VL_BADREFCOUNT : s = "VL_BADREFCOUNT"; break;
747 case VL_SIZEEXCEEDED : s = "VL_SIZEEXCEEDED"; break;
748 case VL_BADENTRY : s = "VL_BADENTRY"; break;
749 case VL_BADVOLIDBUMP : s = "VL_BADVOLIDBUMP"; break;
750 case VL_IDALREADYHASHED: s = "VL_IDALREADYHASHED"; break;
751 case VL_ENTRYLOCKED : s = "VL_ENTRYLOCKED"; break;
752 case VL_BADVOLOPER : s = "VL_BADVOLOPER"; break;
753 case VL_BADRELLOCKTYPE : s = "VL_BADRELLOCKTYPE"; break;
754 case VL_RERELEASE : s = "VL_RERELEASE"; break;
755 case VL_BADSERVERFLAG : s = "VL_BADSERVERFLAG"; break;
756 case VL_PERM : s = "VL_PERM"; break;
757 case VL_NOMEM : s = "VL_NOMEM"; break;
758 case VL_BADVERSION : s = "VL_BADVERSION"; break;
759 case VL_INDEXERANGE : s = "VL_INDEXERANGE"; break;
760 case VL_MULTIPADDR : s = "VL_MULTIPADDR"; break;
761 case VL_BADMASK : s = "VL_BADMASK"; break;
762 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
763 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
764 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
765 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
766 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
767 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
768 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
769 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
770 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
771 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
772 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
773 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
774 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
775 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
776 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
777 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
778 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
779 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
780 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
781 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
782 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
783 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
784 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
785 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
786 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
787 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
788 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
789 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
790 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
791 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
792 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
793 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
794 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
795 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
796 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
797 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
798 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
799 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
800 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
801 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
802 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
803 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
804 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
805 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
806 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
807 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
808 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
809 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
810 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
811 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
812 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
814 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
820 /* If not allowed to retry, don't */
821 if (!forcing_new && (reqp->flags & CM_REQ_NORETRY))
823 else if (retry && dead_session)
827 /* drop this on the way out */
832 * clear the volume updated flag if we succeed.
833 * this way the flag will not prevent a subsequent volume
834 * from being updated if necessary.
838 reqp->flags &= ~CM_REQ_VOLUME_UPDATED;
841 /* retry until we fail to find a connection */
845 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
846 cm_req_t *reqp, cm_conn_t **connpp)
849 cm_serverRef_t *tsrp;
852 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
853 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
854 long timeUsed, timeLeft, hardTimeLeft;
858 if (serversp == NULL) {
859 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_ALLDOWN);
860 return CM_ERROR_ALLDOWN;
863 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
864 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
866 /* leave 5 seconds margin of safety */
867 timeLeft = ConnDeadtimeout - timeUsed - 5;
868 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
871 lock_ObtainRead(&cm_serverLock);
872 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
873 if (tsrp->status == srv_deleted)
877 if (reqp->tokenIdleErrorServp) {
879 * search the list until we find the server
880 * that failed last time. When we find it
881 * clear the error, skip it and try the one
884 if (tsp == reqp->tokenIdleErrorServp)
885 reqp->tokenIdleErrorServp = NULL;
889 cm_GetServerNoLock(tsp);
890 lock_ReleaseRead(&cm_serverLock);
891 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
893 if (tsrp->status == srv_busy) {
896 } else if (tsrp->status == srv_offline) {
902 code = cm_ConnByServer(tsp, usersp, connpp);
903 if (code == 0) { /* cm_CBS only returns 0 */
905 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
906 /* Set RPC timeout */
907 if (timeLeft > ConnDeadtimeout)
908 timeLeft = ConnDeadtimeout;
910 if (hardTimeLeft > HardDeadtimeout)
911 hardTimeLeft = HardDeadtimeout;
913 lock_ObtainMutex(&(*connpp)->mx);
914 rx_SetConnDeadTime((*connpp)->rxconnp, timeLeft);
915 rx_SetConnHardDeadTime((*connpp)->rxconnp, (u_short) hardTimeLeft);
916 lock_ReleaseMutex(&(*connpp)->mx);
921 /* therefore, this code is never executed */
926 lock_ObtainRead(&cm_serverLock);
927 cm_PutServerNoLock(tsp);
930 lock_ReleaseRead(&cm_serverLock);
932 if (firstError == 0) {
934 firstError = (reqp->tokenError ? reqp->tokenError :
935 (reqp->idleError ? RX_CALL_TIMEOUT : CM_ERROR_ALLDOWN));
937 firstError = CM_ERROR_ALLBUSY;
938 else if (allOffline || (someBusy && someOffline))
939 firstError = CM_ERROR_ALLOFFLINE;
941 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
942 firstError = CM_ERROR_TIMEDOUT;
946 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
950 /* called with a held server to GC all bad connections hanging off of the server */
951 void cm_GCConnections(cm_server_t *serverp)
957 lock_ObtainWrite(&cm_connLock);
958 lcpp = &serverp->connsp;
959 for (tcp = *lcpp; tcp; tcp = *lcpp) {
961 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
962 /* do the deletion of this guy */
963 cm_PutServer(tcp->serverp);
964 cm_ReleaseUser(userp);
966 rx_DestroyConnection(tcp->rxconnp);
967 lock_FinalizeMutex(&tcp->mx);
971 /* just advance to the next */
975 lock_ReleaseWrite(&cm_connLock);
978 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
979 cm_server_t *serverp)
984 struct rx_securityClass *secObjp;
986 if (serverp->type == CM_SERVER_VLDB) {
991 osi_assertx(serverp->type == CM_SERVER_FILE, "incorrect server type");
995 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
999 tcp->cryptlevel = rxkad_clear;
1002 tcp->cryptlevel = rxkad_auth;
1005 tcp->cryptlevel = rxkad_crypt;
1007 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
1008 &ucellp->sessionKey, ucellp->kvno,
1009 ucellp->ticketLen, ucellp->ticketp);
1013 tcp->cryptlevel = rxkad_clear;
1014 secObjp = rxnull_NewClientSecurityObject();
1016 osi_assertx(secObjp != NULL, "null rx_securityClass");
1017 tcp->rxconnp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
1022 rx_SetConnDeadTime(tcp->rxconnp, ConnDeadtimeout);
1023 rx_SetConnHardDeadTime(tcp->rxconnp, HardDeadtimeout);
1024 rx_SetConnIdleDeadTime(tcp->rxconnp, IdleDeadtimeout);
1025 tcp->ucgen = ucellp->gen;
1027 rxs_Release(secObjp); /* Decrement the initial refCount */
1030 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
1037 if (cm_anonvldb && serverp->type == CM_SERVER_VLDB)
1038 userp = cm_rootUserp;
1040 lock_ObtainMutex(&userp->mx);
1041 lock_ObtainRead(&cm_connLock);
1042 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1043 if (tcp->userp == userp)
1047 /* find ucell structure */
1048 ucellp = cm_GetUCell(userp, serverp->cellp);
1050 lock_ConvertRToW(&cm_connLock);
1051 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1052 if (tcp->userp == userp)
1056 lock_ReleaseWrite(&cm_connLock);
1059 cm_GetServer(serverp);
1060 tcp = malloc(sizeof(*tcp));
1061 memset(tcp, 0, sizeof(*tcp));
1062 tcp->nextp = serverp->connsp;
1063 serverp->connsp = tcp;
1066 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex", LOCK_HIERARCHY_CONN);
1067 lock_ObtainMutex(&tcp->mx);
1068 tcp->serverp = serverp;
1069 tcp->cryptlevel = rxkad_clear;
1070 cm_NewRXConnection(tcp, ucellp, serverp);
1072 lock_ReleaseMutex(&tcp->mx);
1073 lock_ReleaseWrite(&cm_connLock);
1075 lock_ReleaseRead(&cm_connLock);
1077 InterlockedIncrement(&tcp->refCount);
1079 lock_ObtainMutex(&tcp->mx);
1080 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
1081 (tcp->ucgen < ucellp->gen) ||
1082 (tcp->cryptlevel != (ucellp->flags & CM_UCELLFLAG_RXKAD ? (cryptall == 1 ? rxkad_crypt : (cryptall == 2 ? rxkad_auth : rxkad_clear)) : rxkad_clear)))
1084 if (tcp->ucgen < ucellp->gen)
1085 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
1087 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
1088 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
1089 rx_DestroyConnection(tcp->rxconnp);
1090 cm_NewRXConnection(tcp, ucellp, serverp);
1092 lock_ReleaseMutex(&tcp->mx);
1094 lock_ReleaseMutex(&userp->mx);
1096 /* return this pointer to our caller */
1097 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
1103 long cm_ServerAvailable(struct cm_fid *fidp, struct cm_user *userp)
1107 cm_serverRef_t **serverspp;
1108 cm_serverRef_t *tsrp;
1110 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
1114 code = cm_GetServerList(fidp, userp, &req, &serverspp);
1118 lock_ObtainRead(&cm_serverLock);
1119 for (tsrp = *serverspp; tsrp; tsrp=tsrp->next) {
1120 if (tsrp->status == srv_deleted)
1123 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
1125 if (tsrp->status == srv_busy) {
1128 } else if (tsrp->status == srv_offline) {
1137 lock_ReleaseRead(&cm_serverLock);
1138 cm_FreeServerList(serverspp, 0);
1144 else if (allOffline || (someBusy && someOffline))
1151 * The returned cm_conn_t ** object is released in the subsequent call
1154 long cm_ConnFromFID(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
1158 cm_serverRef_t **serverspp;
1162 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
1167 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1168 cm_FreeServerList(serverspp, 0);
1173 long cm_ConnFromVolume(struct cm_volume *volp, unsigned long volid, struct cm_user *userp, cm_req_t *reqp,
1177 cm_serverRef_t **serverspp;
1181 serverspp = cm_GetVolServers(volp, volid, userp, reqp);
1183 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1184 cm_FreeServerList(serverspp, 0);
1189 extern struct rx_connection *
1190 cm_GetRxConn(cm_conn_t *connp)
1192 struct rx_connection * rxconnp;
1193 lock_ObtainMutex(&connp->mx);
1194 rxconnp = connp->rxconnp;
1195 rx_GetConnection(rxconnp);
1196 lock_ReleaseMutex(&connp->mx);
1200 void cm_ForceNewConnections(cm_server_t *serverp)
1204 lock_ObtainWrite(&cm_connLock);
1205 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1206 lock_ObtainMutex(&tcp->mx);
1207 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
1208 lock_ReleaseMutex(&tcp->mx);
1210 lock_ReleaseWrite(&cm_connLock);