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");
54 /* keisa - read timeout value for lanmanworkstation service.
56 * http://support.microsoft.com:80/support/kb/articles/Q102/0/67.asp&NoWebContent=1
57 * the SessTimeout is a minimum timeout not a maximum timeout. Therefore,
58 * I believe that the default should not be short. Instead, we should wait until
59 * RX times out before reporting a timeout to the SMB client.
61 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, LANMAN_WKS_PARAM_KEY,
62 0, KEY_QUERY_VALUE, &parmKey);
63 if (code == ERROR_SUCCESS)
65 dummyLen = sizeof(DWORD);
66 code = RegQueryValueEx(parmKey, LANMAN_WKS_SESSION_TIMEOUT, NULL, NULL,
67 (BYTE *) &dwValue, &dummyLen);
68 if (code == ERROR_SUCCESS)
73 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
74 0, KEY_QUERY_VALUE, &parmKey);
75 if (code == ERROR_SUCCESS) {
76 dummyLen = sizeof(DWORD);
77 code = RegQueryValueEx(parmKey, "ConnDeadTimeout", NULL, NULL,
78 (BYTE *) &dwValue, &dummyLen);
79 if (code == ERROR_SUCCESS) {
80 ConnDeadtimeout = (unsigned short)dwValue;
81 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
83 dummyLen = sizeof(DWORD);
84 code = RegQueryValueEx(parmKey, "HardDeadTimeout", NULL, NULL,
85 (BYTE *) &dwValue, &dummyLen);
86 if (code == ERROR_SUCCESS) {
87 HardDeadtimeout = (unsigned short)dwValue;
88 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
90 dummyLen = sizeof(DWORD);
91 code = RegQueryValueEx(parmKey, "IdleDeadTimeout", NULL, NULL,
92 (BYTE *) &dwValue, &dummyLen);
93 if (code == ERROR_SUCCESS) {
94 IdleDeadtimeout = (unsigned short)dwValue;
95 afsi_log("IdleDeadTimeout is %d", IdleDeadtimeout);
100 afsi_log("lanmanworkstation : SessTimeout %u", RDRtimeout);
101 if (ConnDeadtimeout == 0) {
102 ConnDeadtimeout = (unsigned short) (RDRtimeout / 2);
103 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
105 if (HardDeadtimeout == 0) {
106 HardDeadtimeout = (unsigned short) RDRtimeout;
107 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
109 if (ConnDeadtimeout == 0) {
110 IdleDeadtimeout = (unsigned short) RDRtimeout;
111 afsi_log("IdleDeadTimeout is %d", IdleDeadtimeout);
117 void cm_InitReq(cm_req_t *reqp)
119 memset((char *)reqp, 0, sizeof(cm_req_t));
120 reqp->startTime = GetTickCount();
123 static long cm_GetServerList(struct cm_fid *fidp, struct cm_user *userp,
124 struct cm_req *reqp, cm_serverRef_t ***serversppp)
127 cm_volume_t *volp = NULL;
128 cm_cell_t *cellp = NULL;
132 return CM_ERROR_INVAL;
135 cellp = cm_FindCellByID(fidp->cell, 0);
137 return CM_ERROR_NOSUCHCELL;
139 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp, CM_GETVOL_FLAG_CREATE, &volp);
143 *serversppp = cm_GetVolServers(volp, fidp->volume);
145 lock_ObtainRead(&cm_volumeLock);
147 lock_ReleaseRead(&cm_volumeLock);
152 * Analyze the error return from an RPC. Determine whether or not to retry,
153 * and if we're going to retry, determine whether failover is appropriate,
154 * and whether timed backoff is appropriate.
156 * If the error code is from cm_ConnFromFID() or friends, it will be a CM_ERROR code.
157 * Otherwise it will be an RPC code. This may be a UNIX code (e.g. EDQUOT), or
158 * it may be an RX code, or it may be a special code (e.g. VNOVOL), or it may
159 * be a security code (e.g. RXKADEXPIRED).
161 * If the error code is from cm_ConnFromFID() or friends, connp will be NULL.
163 * For VLDB calls, fidp will be NULL.
165 * volSyncp and/or cbrp may also be NULL.
168 cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
170 AFSVolSync *volSyncp,
171 cm_serverRef_t * serversp,
172 cm_callbackRequest_t *cbrp, long errorCode)
174 cm_server_t *serverp = NULL;
175 cm_serverRef_t **serverspp = NULL;
176 cm_serverRef_t *tsrp;
177 cm_cell_t *cellp = NULL;
179 cm_volume_t * volp = NULL;
180 cm_vol_state_t *statep = NULL;
182 int free_svr_list = 0;
184 long timeUsed, timeLeft;
186 char addr[16]="unknown";
189 osi_Log2(afsd_logp, "cm_Analyze connp 0x%p, code 0x%x",
192 /* no locking required, since connp->serverp never changes after
194 dead_session = (userp->cellInfop == NULL);
196 serverp = connp->serverp;
198 /* Update callback pointer */
199 if (cbrp && serverp && errorCode == 0) {
201 if ( cbrp->serverp != serverp ) {
202 lock_ObtainWrite(&cm_serverLock);
203 cm_PutServerNoLock(cbrp->serverp);
204 cm_GetServerNoLock(serverp);
205 lock_ReleaseWrite(&cm_serverLock);
208 cm_GetServer(serverp);
210 lock_ObtainWrite(&cm_callbackLock);
211 cbrp->serverp = serverp;
212 lock_ReleaseWrite(&cm_callbackLock);
215 /* if timeout - check that it did not exceed the HardDead timeout
218 /* timeleft - get if from reqp the same way as cmXonnByMServers does */
219 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
221 /* leave 5 seconds margin for sleep */
222 if (reqp->flags & CM_REQ_NORETRY)
225 timeLeft = HardDeadtimeout - timeUsed;
227 /* get a pointer to the cell */
229 if (cellp == NULL && serverp)
230 cellp = serverp->cellp;
231 if (cellp == NULL && serversp) {
232 struct cm_serverRef * refp;
233 for ( refp=serversp ; cellp == NULL && refp != NULL; refp=refp->next) {
235 cellp = refp->server->cellp;
238 if (cellp == NULL && fidp) {
239 cellp = cm_FindCellByID(fidp->cell, 0);
243 if (errorCode == CM_ERROR_TIMEDOUT) {
244 if ( timeLeft > 5 ) {
246 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
251 else if (errorCode == UAEWOULDBLOCK || errorCode == EWOULDBLOCK ||
252 errorCode == UAEAGAIN || errorCode == EAGAIN) {
253 osi_Log0(afsd_logp, "cm_Analyze passed EWOULDBLOCK or EAGAIN.");
254 if ( timeLeft > 5 ) {
260 /* if there is nosuchvolume, then we have a situation in which a
261 * previously known volume no longer has a set of servers
262 * associated with it. Either the volume has moved or
263 * the volume has been deleted. Try to find a new server list
264 * until the timeout period expires.
266 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
267 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
273 if (fidp != NULL) /* Not a VLDB call */
274 cm_ForceUpdateVolume(fidp, userp, reqp);
278 else if (errorCode == CM_ERROR_ALLDOWN) {
279 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
280 /* Servers marked DOWN will be restored by the background daemon
281 * thread as they become available. The volume status is
282 * updated as the server state changes.
286 else if (errorCode == CM_ERROR_ALLOFFLINE) {
287 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
288 /* Volume instances marked offline will be restored by the
289 * background daemon thread as they become available
292 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
293 CM_GETVOL_FLAG_NO_LRU_UPDATE,
299 /* cm_CheckOfflineVolume() resets the serverRef state */
300 if (cm_CheckOfflineVolume(volp, fidp->volume))
303 cm_UpdateVolumeStatus(volp, fidp->volume);
305 lock_ObtainRead(&cm_volumeLock);
307 lock_ReleaseRead(&cm_volumeLock);
312 else if (errorCode == CM_ERROR_ALLBUSY) {
313 /* Volumes that are busy cannot be determined to be non-busy
314 * without actually attempting to access them.
316 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
318 if (fidp) { /* File Server query */
319 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
320 CM_GETVOL_FLAG_NO_LRU_UPDATE,
326 statep = cm_VolumeStateByID(volp, fidp->volume);
327 if (statep->state != vl_offline &&
328 statep->state != vl_busy &&
329 statep->state != vl_unknown) {
333 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
335 serversp = *serverspp;
339 lock_ObtainWrite(&cm_serverLock);
340 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
341 if (tsrp->status == srv_busy) {
342 tsrp->status = srv_not_busy;
345 lock_ReleaseWrite(&cm_serverLock);
347 cm_FreeServerList(&serversp, 0);
348 *serverspp = serversp;
351 cm_UpdateVolumeStatus(volp, fidp->volume);
355 cm_UpdateVolumeStatus(volp, fidp->volume);
358 lock_ObtainRead(&cm_volumeLock);
360 lock_ReleaseRead(&cm_volumeLock);
363 } else { /* VL Server query */
368 lock_ObtainWrite(&cm_serverLock);
369 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
370 if (tsrp->status == srv_busy) {
371 tsrp->status = srv_not_busy;
374 lock_ReleaseWrite(&cm_serverLock);
381 /* special codes: VBUSY and VRESTARTING */
382 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
383 if (!serversp && fidp) {
384 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
386 serversp = *serverspp;
390 lock_ObtainWrite(&cm_serverLock);
391 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
392 if (tsrp->server == serverp && tsrp->status == srv_not_busy) {
393 tsrp->status = srv_busy;
394 if (fidp) { /* File Server query */
395 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
396 CM_GETVOL_FLAG_NO_LRU_UPDATE,
399 statep = cm_VolumeStateByID(volp, fidp->volume);
404 lock_ReleaseWrite(&cm_serverLock);
407 cm_UpdateVolumeStatus(volp, statep->ID);
408 lock_ObtainRead(&cm_volumeLock);
410 lock_ReleaseRead(&cm_volumeLock);
415 cm_FreeServerList(&serversp, 0);
416 *serverspp = serversp;
421 /* special codes: missing volumes */
422 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
423 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
428 switch ( errorCode ) {
430 msgID = MSG_SERVER_REPORTS_VNOVOL;
431 format = "Server %s reported volume %d as not attached.";
434 msgID = MSG_SERVER_REPORTS_VMOVED;
435 format = "Server %s reported volume %d as moved.";
438 msgID = MSG_SERVER_REPORTS_VOFFLINE;
439 format = "Server %s reported volume %d as offline.";
442 msgID = MSG_SERVER_REPORTS_VSALVAGE;
443 format = "Server %s reported volume %d as needs salvage.";
446 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
447 format = "Server %s reported volume %d as not in service.";
450 msgID = MSG_SERVER_REPORTS_VIO;
451 format = "Server %s reported volume %d as temporarily unaccessible.";
455 if (serverp && fidp) {
456 /* Log server being offline for this volume */
457 sprintf(addr, "%d.%d.%d.%d",
458 ((serverp->addr.sin_addr.s_addr & 0xff)),
459 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
460 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
461 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
463 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
464 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
467 /* Mark server offline for this volume */
468 if (!serversp && fidp) {
469 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
471 serversp = *serverspp;
476 lock_ObtainWrite(&cm_serverLock);
477 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
478 if (tsrp->server == serverp) {
480 if (errorCode == VMOVED) {
481 tsrp->status = srv_deleted;
483 tsrp->status = srv_offline;
486 if (fidp) { /* File Server query */
487 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
488 CM_GETVOL_FLAG_NO_LRU_UPDATE,
491 cm_VolumeStateByID(volp, fidp->volume);
495 lock_ReleaseWrite(&cm_serverLock);
497 if (fidp && errorCode == VMOVED)
498 cm_ForceUpdateVolume(fidp, userp, reqp);
501 cm_UpdateVolumeStatus(volp, statep->ID);
502 lock_ObtainRead(&cm_volumeLock);
504 lock_ReleaseRead(&cm_volumeLock);
509 cm_FreeServerList(&serversp, 0);
510 *serverspp = serversp;
514 } else if ( errorCode == VNOVNODE ) {
517 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
518 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
520 scp = cm_FindSCache(fidp);
522 cm_scache_t *pscp = NULL;
524 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
525 pscp = cm_FindSCacheParent(scp);
527 lock_ObtainWrite(&scp->rw);
528 lock_ObtainWrite(&cm_scacheLock);
529 cm_RemoveSCacheFromHashTable(scp);
530 lock_ReleaseWrite(&cm_scacheLock);
531 cm_LockMarkSCacheLost(scp);
532 scp->flags |= CM_SCACHEFLAG_DELETED;
533 lock_ReleaseWrite(&scp->rw);
534 cm_ReleaseSCache(scp);
537 if (cm_HaveCallback(pscp)) {
538 lock_ObtainWrite(&pscp->rw);
539 cm_DiscardSCache(pscp);
540 lock_ReleaseWrite(&pscp->rw);
542 cm_ReleaseSCache(pscp);
546 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
551 else if (errorCode == RX_CALL_TIMEOUT) {
552 /* server took longer than hardDeadTime
553 * don't mark server as down but don't retry
554 * this is to prevent the SMB session from timing out
555 * In addition, we log an event to the event log
559 /* Log server being offline for this volume */
560 sprintf(addr, "%d.%d.%d.%d",
561 ((serverp->addr.sin_addr.s_addr & 0xff)),
562 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
563 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
564 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
566 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
568 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime exceeded addr[%s]",
569 osi_LogSaveString(afsd_logp,addr));
570 reqp->tokenIdleErrorServp = serverp;
575 else if (errorCode >= -64 && errorCode < 0) {
576 /* mark server as down */
577 lock_ObtainMutex(&serverp->mx);
578 if (reqp->flags & CM_REQ_NEW_CONN_FORCED) {
579 if (!(serverp->flags & CM_SERVERFLAG_DOWN)) {
580 serverp->flags |= CM_SERVERFLAG_DOWN;
581 serverp->downTime = time(NULL);
584 reqp->flags |= CM_REQ_NEW_CONN_FORCED;
587 lock_ReleaseMutex(&serverp->mx);
588 cm_ForceNewConnections(serverp);
592 else if (errorCode == RXKADEXPIRED) {
594 lock_ObtainMutex(&userp->mx);
595 ucellp = cm_GetUCell(userp, serverp->cellp);
596 if (ucellp->ticketp) {
597 free(ucellp->ticketp);
598 ucellp->ticketp = NULL;
600 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
602 lock_ReleaseMutex(&userp->mx);
606 } else if (errorCode >= ERROR_TABLE_BASE_RXK && errorCode < ERROR_TABLE_BASE_RXK + 256) {
608 reqp->tokenIdleErrorServp = serverp;
609 reqp->tokenError = errorCode;
612 } else if (errorCode == VICECONNBAD || errorCode == VICETOKENDEAD) {
613 cm_ForceNewConnections(serverp);
618 char * s = "unknown error";
619 switch ( errorCode ) {
620 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
621 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
622 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
623 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
624 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
625 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
626 case RXKADBADKEY : s = "RXKADBADKEY"; break;
627 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
628 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
629 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
630 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
631 case RXKADDATALEN : s = "RXKADDATALEN"; break;
632 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
633 case VSALVAGE : s = "VSALVAGE"; break;
634 case VNOVNODE : s = "VNOVNODE"; break;
635 case VNOVOL : s = "VNOVOL"; break;
636 case VVOLEXISTS : s = "VVOLEXISTS"; break;
637 case VNOSERVICE : s = "VNOSERVICE"; break;
638 case VOFFLINE : s = "VOFFLINE"; break;
639 case VONLINE : s = "VONLINE"; break;
640 case VDISKFULL : s = "VDISKFULL"; break;
641 case VOVERQUOTA : s = "VOVERQUOTA"; break;
642 case VBUSY : s = "VBUSY"; break;
643 case VMOVED : s = "VMOVED"; break;
644 case VIO : s = "VIO"; break;
645 case VRESTRICTED : s = "VRESTRICTED"; break;
646 case VRESTARTING : s = "VRESTARTING"; break;
647 case VREADONLY : s = "VREADONLY"; break;
648 case EAGAIN : s = "EAGAIN"; break;
649 case UAEAGAIN : s = "UAEAGAIN"; break;
650 case EINVAL : s = "EINVAL"; break;
651 case UAEINVAL : s = "UAEINVAL"; break;
652 case EACCES : s = "EACCES"; break;
653 case UAEACCES : s = "UAEACCES"; break;
654 case ENOENT : s = "ENOENT"; break;
655 case UAENOENT : s = "UAENOENT"; break;
656 case VICECONNBAD : s = "VICECONNBAD"; break;
657 case VICETOKENDEAD : s = "VICETOKENDEAD"; break;
658 case WSAEWOULDBLOCK : s = "WSAEWOULDBLOCK"; break;
659 case UAEWOULDBLOCK : s = "UAEWOULDBLOCK"; break;
660 case VL_IDEXIST : s = "VL_IDEXIST"; break;
661 case VL_IO : s = "VL_IO"; break;
662 case VL_NAMEEXIST : s = "VL_NAMEEXIST"; break;
663 case VL_CREATEFAIL : s = "VL_CREATEFAIL"; break;
664 case VL_NOENT : s = "VL_NOENT"; break;
665 case VL_EMPTY : s = "VL_EMPTY"; break;
666 case VL_ENTDELETED : s = "VL_ENTDELETED"; break;
667 case VL_BADNAME : s = "VL_BADNAME"; break;
668 case VL_BADINDEX : s = "VL_BADINDEX"; break;
669 case VL_BADVOLTYPE : s = "VL_BADVOLTYPE"; break;
670 case VL_BADSERVER : s = "VL_BADSERVER"; break;
671 case VL_BADPARTITION : s = "VL_BADPARTITION"; break;
672 case VL_REPSFULL : s = "VL_REPSFULL"; break;
673 case VL_NOREPSERVER : s = "VL_NOREPSERVER"; break;
674 case VL_DUPREPSERVER : s = "VL_DUPREPSERVER"; break;
675 case VL_RWNOTFOUND : s = "VL_RWNOTFOUND"; break;
676 case VL_BADREFCOUNT : s = "VL_BADREFCOUNT"; break;
677 case VL_SIZEEXCEEDED : s = "VL_SIZEEXCEEDED"; break;
678 case VL_BADENTRY : s = "VL_BADENTRY"; break;
679 case VL_BADVOLIDBUMP : s = "VL_BADVOLIDBUMP"; break;
680 case VL_IDALREADYHASHED: s = "VL_IDALREADYHASHED"; break;
681 case VL_ENTRYLOCKED : s = "VL_ENTRYLOCKED"; break;
682 case VL_BADVOLOPER : s = "VL_BADVOLOPER"; break;
683 case VL_BADRELLOCKTYPE : s = "VL_BADRELLOCKTYPE"; break;
684 case VL_RERELEASE : s = "VL_RERELEASE"; break;
685 case VL_BADSERVERFLAG : s = "VL_BADSERVERFLAG"; break;
686 case VL_PERM : s = "VL_PERM"; break;
687 case VL_NOMEM : s = "VL_NOMEM"; break;
688 case VL_BADVERSION : s = "VL_BADVERSION"; break;
689 case VL_INDEXERANGE : s = "VL_INDEXERANGE"; break;
690 case VL_MULTIPADDR : s = "VL_MULTIPADDR"; break;
691 case VL_BADMASK : s = "VL_BADMASK"; break;
692 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
693 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
694 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
695 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
696 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
697 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
698 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
699 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
700 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
701 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
702 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
703 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
704 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
705 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
706 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
707 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
708 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
709 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
710 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
711 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
712 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
713 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
714 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
715 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
716 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
717 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
718 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
719 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
720 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
721 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
722 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
723 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
724 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
725 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
726 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
727 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
728 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
729 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
730 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
731 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
732 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
733 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
734 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
735 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
736 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
737 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
738 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
739 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
740 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
741 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
742 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
744 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
750 /* If not allowed to retry, don't */
751 if (!forcing_new && (reqp->flags & CM_REQ_NORETRY))
753 else if (retry && dead_session)
757 /* drop this on the way out */
761 /* retry until we fail to find a connection */
765 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
766 cm_req_t *reqp, cm_conn_t **connpp)
769 cm_serverRef_t *tsrp;
772 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
773 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
774 long timeUsed, timeLeft, hardTimeLeft;
778 if (serversp == NULL) {
779 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_ALLDOWN);
780 return CM_ERROR_ALLDOWN;
783 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
784 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
786 /* leave 5 seconds margin of safety */
787 timeLeft = ConnDeadtimeout - timeUsed - 5;
788 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
791 lock_ObtainRead(&cm_serverLock);
792 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
794 if (reqp->tokenIdleErrorServp) {
796 * search the list until we find the server
797 * that failed last time. When we find it
798 * clear the error, skip it and try the one
801 if (tsp == reqp->tokenIdleErrorServp)
802 reqp->tokenIdleErrorServp = NULL;
806 cm_GetServerNoLock(tsp);
807 lock_ReleaseRead(&cm_serverLock);
808 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
810 if (tsrp->status == srv_deleted) {
811 /* skip this entry. no longer valid. */;
812 } else if (tsrp->status == srv_busy) {
815 } else if (tsrp->status == srv_offline) {
821 code = cm_ConnByServer(tsp, usersp, connpp);
822 if (code == 0) { /* cm_CBS only returns 0 */
824 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
825 /* Set RPC timeout */
826 if (timeLeft > ConnDeadtimeout)
827 timeLeft = ConnDeadtimeout;
829 if (hardTimeLeft > HardDeadtimeout)
830 hardTimeLeft = HardDeadtimeout;
832 lock_ObtainMutex(&(*connpp)->mx);
833 rx_SetConnDeadTime((*connpp)->rxconnp, timeLeft);
834 rx_SetConnHardDeadTime((*connpp)->rxconnp, (u_short) hardTimeLeft);
835 lock_ReleaseMutex(&(*connpp)->mx);
840 /* therefore, this code is never executed */
845 lock_ObtainRead(&cm_serverLock);
846 cm_PutServerNoLock(tsp);
849 lock_ReleaseRead(&cm_serverLock);
851 if (firstError == 0) {
853 firstError = (reqp->tokenError ? reqp->tokenError :
854 (reqp->idleError ? RX_CALL_TIMEOUT : CM_ERROR_ALLDOWN));
856 firstError = CM_ERROR_ALLBUSY;
857 else if (allOffline || (someBusy && someOffline))
858 firstError = CM_ERROR_ALLOFFLINE;
860 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
861 firstError = CM_ERROR_TIMEDOUT;
865 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
869 /* called with a held server to GC all bad connections hanging off of the server */
870 void cm_GCConnections(cm_server_t *serverp)
876 lock_ObtainWrite(&cm_connLock);
877 lcpp = &serverp->connsp;
878 for (tcp = *lcpp; tcp; tcp = *lcpp) {
880 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
881 /* do the deletion of this guy */
882 cm_PutServer(tcp->serverp);
883 cm_ReleaseUser(userp);
885 rx_DestroyConnection(tcp->rxconnp);
886 lock_FinalizeMutex(&tcp->mx);
890 /* just advance to the next */
894 lock_ReleaseWrite(&cm_connLock);
897 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
898 cm_server_t *serverp)
903 struct rx_securityClass *secObjp;
905 if (serverp->type == CM_SERVER_VLDB) {
910 osi_assertx(serverp->type == CM_SERVER_FILE, "incorrect server type");
914 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
917 tcp->cryptlevel = rxkad_crypt;
919 tcp->cryptlevel = rxkad_clear;
921 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
922 &ucellp->sessionKey, ucellp->kvno,
923 ucellp->ticketLen, ucellp->ticketp);
927 tcp->cryptlevel = rxkad_clear;
928 secObjp = rxnull_NewClientSecurityObject();
930 osi_assertx(secObjp != NULL, "null rx_securityClass");
931 tcp->rxconnp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
936 rx_SetConnDeadTime(tcp->rxconnp, ConnDeadtimeout);
937 rx_SetConnHardDeadTime(tcp->rxconnp, HardDeadtimeout);
938 rx_SetConnIdleDeadTime(tcp->rxconnp, IdleDeadtimeout);
939 tcp->ucgen = ucellp->gen;
941 rxs_Release(secObjp); /* Decrement the initial refCount */
944 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
951 if (cm_anonvldb && serverp->type == CM_SERVER_VLDB)
952 userp = cm_rootUserp;
954 lock_ObtainMutex(&userp->mx);
955 lock_ObtainRead(&cm_connLock);
956 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
957 if (tcp->userp == userp)
961 /* find ucell structure */
962 ucellp = cm_GetUCell(userp, serverp->cellp);
964 lock_ConvertRToW(&cm_connLock);
965 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
966 if (tcp->userp == userp)
970 lock_ReleaseWrite(&cm_connLock);
973 cm_GetServer(serverp);
974 tcp = malloc(sizeof(*tcp));
975 memset(tcp, 0, sizeof(*tcp));
976 tcp->nextp = serverp->connsp;
977 serverp->connsp = tcp;
980 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex");
981 lock_ObtainMutex(&tcp->mx);
982 tcp->serverp = serverp;
983 tcp->cryptlevel = rxkad_clear;
984 cm_NewRXConnection(tcp, ucellp, serverp);
986 lock_ReleaseMutex(&tcp->mx);
987 lock_ReleaseWrite(&cm_connLock);
989 lock_ReleaseRead(&cm_connLock);
991 InterlockedIncrement(&tcp->refCount);
993 lock_ObtainMutex(&tcp->mx);
994 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
995 (tcp->ucgen < ucellp->gen) ||
996 (tcp->cryptlevel != (cryptall ? (ucellp->flags & CM_UCELLFLAG_RXKAD ? rxkad_crypt : rxkad_clear) : rxkad_clear)))
998 if (tcp->ucgen < ucellp->gen)
999 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
1001 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
1002 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
1003 rx_DestroyConnection(tcp->rxconnp);
1004 cm_NewRXConnection(tcp, ucellp, serverp);
1006 lock_ReleaseMutex(&tcp->mx);
1008 lock_ReleaseMutex(&userp->mx);
1010 /* return this pointer to our caller */
1011 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
1017 long cm_ServerAvailable(struct cm_fid *fidp, struct cm_user *userp)
1021 cm_serverRef_t **serverspp;
1022 cm_serverRef_t *tsrp;
1024 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
1028 code = cm_GetServerList(fidp, userp, &req, &serverspp);
1032 lock_ObtainRead(&cm_serverLock);
1033 for (tsrp = *serverspp; tsrp; tsrp=tsrp->next) {
1035 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
1037 if (tsrp->status == srv_busy) {
1040 } else if (tsrp->status == srv_offline) {
1049 lock_ReleaseRead(&cm_serverLock);
1050 cm_FreeServerList(serverspp, 0);
1056 else if (allOffline || (someBusy && someOffline))
1063 * The returned cm_conn_t ** object is released in the subsequent call
1066 long cm_ConnFromFID(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
1070 cm_serverRef_t **serverspp;
1074 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
1079 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1080 cm_FreeServerList(serverspp, 0);
1085 long cm_ConnFromVolume(struct cm_volume *volp, unsigned long volid, struct cm_user *userp, cm_req_t *reqp,
1089 cm_serverRef_t **serverspp;
1093 serverspp = cm_GetVolServers(volp, volid);
1095 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1096 cm_FreeServerList(serverspp, 0);
1101 extern struct rx_connection *
1102 cm_GetRxConn(cm_conn_t *connp)
1104 struct rx_connection * rxconnp;
1105 lock_ObtainMutex(&connp->mx);
1106 rxconnp = connp->rxconnp;
1107 rx_GetConnection(rxconnp);
1108 lock_ReleaseMutex(&connp->mx);
1112 void cm_ForceNewConnections(cm_server_t *serverp)
1116 lock_ObtainWrite(&cm_connLock);
1117 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1118 lock_ObtainMutex(&tcp->mx);
1119 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
1120 lock_ReleaseMutex(&tcp->mx);
1122 lock_ReleaseWrite(&cm_connLock);