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;
82 dummyLen = sizeof(DWORD);
83 code = RegQueryValueEx(parmKey, "HardDeadTimeout", NULL, NULL,
84 (BYTE *) &dwValue, &dummyLen);
85 if (code == ERROR_SUCCESS)
86 HardDeadtimeout = (unsigned short)dwValue;
87 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
89 dummyLen = sizeof(DWORD);
90 code = RegQueryValueEx(parmKey, "IdleDeadTimeout", NULL, NULL,
91 (BYTE *) &dwValue, &dummyLen);
92 if (code == ERROR_SUCCESS)
93 IdleDeadtimeout = (unsigned short)dwValue;
94 afsi_log("IdleDeadTimeout is %d", IdleDeadtimeout);
99 afsi_log("lanmanworkstation : SessTimeout %u", RDRtimeout);
100 if (ConnDeadtimeout == 0)
101 ConnDeadtimeout = (unsigned short) (RDRtimeout / 2);
102 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
103 if (HardDeadtimeout == 0)
104 HardDeadtimeout = (unsigned short) RDRtimeout;
105 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
111 void cm_InitReq(cm_req_t *reqp)
113 memset((char *)reqp, 0, sizeof(cm_req_t));
114 reqp->startTime = GetTickCount();
117 static long cm_GetServerList(struct cm_fid *fidp, struct cm_user *userp,
118 struct cm_req *reqp, cm_serverRef_t ***serversppp)
121 cm_volume_t *volp = NULL;
122 cm_cell_t *cellp = NULL;
126 return CM_ERROR_INVAL;
129 cellp = cm_FindCellByID(fidp->cell, 0);
131 return CM_ERROR_NOSUCHCELL;
133 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp, CM_GETVOL_FLAG_CREATE, &volp);
137 *serversppp = cm_GetVolServers(volp, fidp->volume);
139 lock_ObtainRead(&cm_volumeLock);
141 lock_ReleaseRead(&cm_volumeLock);
146 * Analyze the error return from an RPC. Determine whether or not to retry,
147 * and if we're going to retry, determine whether failover is appropriate,
148 * and whether timed backoff is appropriate.
150 * If the error code is from cm_ConnFromFID() or friends, it will be a CM_ERROR code.
151 * Otherwise it will be an RPC code. This may be a UNIX code (e.g. EDQUOT), or
152 * it may be an RX code, or it may be a special code (e.g. VNOVOL), or it may
153 * be a security code (e.g. RXKADEXPIRED).
155 * If the error code is from cm_ConnFromFID() or friends, connp will be NULL.
157 * For VLDB calls, fidp will be NULL.
159 * volSyncp and/or cbrp may also be NULL.
162 cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
164 AFSVolSync *volSyncp,
165 cm_serverRef_t * serversp,
166 cm_callbackRequest_t *cbrp, long errorCode)
168 cm_server_t *serverp = NULL;
169 cm_serverRef_t **serverspp = NULL;
170 cm_serverRef_t *tsrp;
171 cm_cell_t *cellp = NULL;
173 cm_volume_t * volp = NULL;
174 cm_vol_state_t *statep = NULL;
176 int free_svr_list = 0;
178 long timeUsed, timeLeft;
180 char addr[16]="unknown";
183 osi_Log2(afsd_logp, "cm_Analyze connp 0x%p, code 0x%x",
186 /* no locking required, since connp->serverp never changes after
188 dead_session = (userp->cellInfop == NULL);
190 serverp = connp->serverp;
192 /* Update callback pointer */
193 if (cbrp && serverp && errorCode == 0) {
195 if ( cbrp->serverp != serverp ) {
196 lock_ObtainWrite(&cm_serverLock);
197 cm_PutServerNoLock(cbrp->serverp);
198 cm_GetServerNoLock(serverp);
199 lock_ReleaseWrite(&cm_serverLock);
202 cm_GetServer(serverp);
204 lock_ObtainWrite(&cm_callbackLock);
205 cbrp->serverp = serverp;
206 lock_ReleaseWrite(&cm_callbackLock);
209 /* if timeout - check that it did not exceed the HardDead timeout
212 /* timeleft - get if from reqp the same way as cmXonnByMServers does */
213 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
215 /* leave 5 seconds margin for sleep */
216 if (reqp->flags & CM_REQ_NORETRY)
219 timeLeft = HardDeadtimeout - timeUsed;
221 /* get a pointer to the cell */
223 if (cellp == NULL && serverp)
224 cellp = serverp->cellp;
225 if (cellp == NULL && serversp) {
226 struct cm_serverRef * refp;
227 for ( refp=serversp ; cellp == NULL && refp != NULL; refp=refp->next) {
229 cellp = refp->server->cellp;
232 if (cellp == NULL && fidp) {
233 cellp = cm_FindCellByID(fidp->cell, 0);
237 if (errorCode == CM_ERROR_TIMEDOUT) {
238 if ( timeLeft > 5 ) {
240 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
245 else if (errorCode == UAEWOULDBLOCK || errorCode == EWOULDBLOCK ||
246 errorCode == UAEAGAIN || errorCode == EAGAIN) {
247 osi_Log0(afsd_logp, "cm_Analyze passed EWOULDBLOCK or EAGAIN.");
248 if ( timeLeft > 5 ) {
254 /* if there is nosuchvolume, then we have a situation in which a
255 * previously known volume no longer has a set of servers
256 * associated with it. Either the volume has moved or
257 * the volume has been deleted. Try to find a new server list
258 * until the timeout period expires.
260 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
261 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
267 if (fidp != NULL) /* Not a VLDB call */
268 cm_ForceUpdateVolume(fidp, userp, reqp);
272 else if (errorCode == CM_ERROR_ALLDOWN) {
273 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
274 /* Servers marked DOWN will be restored by the background daemon
275 * thread as they become available. The volume status is
276 * updated as the server state changes.
280 else if (errorCode == CM_ERROR_ALLOFFLINE) {
281 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
282 /* Volume instances marked offline will be restored by the
283 * background daemon thread as they become available
286 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
287 CM_GETVOL_FLAG_NO_LRU_UPDATE,
293 /* cm_CheckOfflineVolume() resets the serverRef state */
294 if (cm_CheckOfflineVolume(volp, fidp->volume))
297 cm_UpdateVolumeStatus(volp, fidp->volume);
299 lock_ObtainRead(&cm_volumeLock);
301 lock_ReleaseRead(&cm_volumeLock);
306 else if (errorCode == CM_ERROR_ALLBUSY) {
307 /* Volumes that are busy cannot be determined to be non-busy
308 * without actually attempting to access them.
310 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
312 if (fidp) { /* File Server query */
313 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
314 CM_GETVOL_FLAG_NO_LRU_UPDATE,
320 statep = cm_VolumeStateByID(volp, fidp->volume);
321 if (statep->state != vl_offline &&
322 statep->state != vl_busy &&
323 statep->state != vl_unknown) {
327 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
329 serversp = *serverspp;
333 lock_ObtainWrite(&cm_serverLock);
334 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
335 if (tsrp->status == srv_busy) {
336 tsrp->status = srv_not_busy;
339 lock_ReleaseWrite(&cm_serverLock);
341 cm_FreeServerList(&serversp, 0);
342 *serverspp = serversp;
345 cm_UpdateVolumeStatus(volp, fidp->volume);
349 cm_UpdateVolumeStatus(volp, fidp->volume);
352 lock_ObtainRead(&cm_volumeLock);
354 lock_ReleaseRead(&cm_volumeLock);
357 } else { /* VL Server query */
362 lock_ObtainWrite(&cm_serverLock);
363 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
364 if (tsrp->status == srv_busy) {
365 tsrp->status = srv_not_busy;
368 lock_ReleaseWrite(&cm_serverLock);
375 /* special codes: VBUSY and VRESTARTING */
376 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
377 if (!serversp && fidp) {
378 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
380 serversp = *serverspp;
384 lock_ObtainWrite(&cm_serverLock);
385 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
386 if (tsrp->server == serverp && tsrp->status == srv_not_busy) {
387 tsrp->status = srv_busy;
388 if (fidp) { /* File Server query */
389 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
390 CM_GETVOL_FLAG_NO_LRU_UPDATE,
393 statep = cm_VolumeStateByID(volp, fidp->volume);
398 lock_ReleaseWrite(&cm_serverLock);
401 cm_UpdateVolumeStatus(volp, statep->ID);
402 lock_ObtainRead(&cm_volumeLock);
404 lock_ReleaseRead(&cm_volumeLock);
409 cm_FreeServerList(&serversp, 0);
410 *serverspp = serversp;
415 /* special codes: missing volumes */
416 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
417 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
422 switch ( errorCode ) {
424 msgID = MSG_SERVER_REPORTS_VNOVOL;
425 format = "Server %s reported volume %d as not attached.";
428 msgID = MSG_SERVER_REPORTS_VMOVED;
429 format = "Server %s reported volume %d as moved.";
432 msgID = MSG_SERVER_REPORTS_VOFFLINE;
433 format = "Server %s reported volume %d as offline.";
436 msgID = MSG_SERVER_REPORTS_VSALVAGE;
437 format = "Server %s reported volume %d as needs salvage.";
440 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
441 format = "Server %s reported volume %d as not in service.";
444 msgID = MSG_SERVER_REPORTS_VIO;
445 format = "Server %s reported volume %d as temporarily unaccessible.";
449 if (serverp && fidp) {
450 /* Log server being offline for this volume */
451 sprintf(addr, "%d.%d.%d.%d",
452 ((serverp->addr.sin_addr.s_addr & 0xff)),
453 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
454 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
455 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
457 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
458 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
461 /* Mark server offline for this volume */
462 if (!serversp && fidp) {
463 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
465 serversp = *serverspp;
470 lock_ObtainWrite(&cm_serverLock);
471 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
472 if (tsrp->server == serverp) {
474 if (errorCode == VMOVED) {
475 tsrp->status = srv_deleted;
477 tsrp->status = srv_offline;
480 if (fidp) { /* File Server query */
481 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
482 CM_GETVOL_FLAG_NO_LRU_UPDATE,
485 cm_VolumeStateByID(volp, fidp->volume);
489 lock_ReleaseWrite(&cm_serverLock);
491 if (fidp && errorCode == VMOVED)
492 cm_ForceUpdateVolume(fidp, userp, reqp);
495 cm_UpdateVolumeStatus(volp, statep->ID);
496 lock_ObtainRead(&cm_volumeLock);
498 lock_ReleaseRead(&cm_volumeLock);
503 cm_FreeServerList(&serversp, 0);
504 *serverspp = serversp;
508 } else if ( errorCode == VNOVNODE ) {
511 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
512 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
514 scp = cm_FindSCache(fidp);
516 cm_scache_t *pscp = NULL;
518 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
519 pscp = cm_FindSCacheParent(scp);
521 lock_ObtainWrite(&scp->rw);
522 lock_ObtainWrite(&cm_scacheLock);
523 cm_RemoveSCacheFromHashTable(scp);
524 lock_ReleaseWrite(&cm_scacheLock);
525 cm_LockMarkSCacheLost(scp);
526 scp->flags |= CM_SCACHEFLAG_DELETED;
527 lock_ReleaseWrite(&scp->rw);
528 cm_ReleaseSCache(scp);
531 if (cm_HaveCallback(pscp)) {
532 lock_ObtainWrite(&pscp->rw);
533 cm_DiscardSCache(pscp);
534 lock_ReleaseWrite(&pscp->rw);
536 cm_ReleaseSCache(pscp);
540 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
545 else if (errorCode == RX_CALL_TIMEOUT) {
546 /* server took longer than hardDeadTime
547 * don't mark server as down but don't retry
548 * this is to prevent the SMB session from timing out
549 * In addition, we log an event to the event log
553 /* Log server being offline for this volume */
554 sprintf(addr, "%d.%d.%d.%d",
555 ((serverp->addr.sin_addr.s_addr & 0xff)),
556 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
557 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
558 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
560 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
562 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime exceeded addr[%s]",
563 osi_LogSaveString(afsd_logp,addr));
564 reqp->tokenIdleErrorServp = serverp;
569 else if (errorCode >= -64 && errorCode < 0) {
570 /* mark server as down */
571 lock_ObtainMutex(&serverp->mx);
572 if (reqp->flags & CM_REQ_NEW_CONN_FORCED) {
573 if (!(serverp->flags & CM_SERVERFLAG_DOWN)) {
574 serverp->flags |= CM_SERVERFLAG_DOWN;
575 serverp->downTime = time(NULL);
578 reqp->flags |= CM_REQ_NEW_CONN_FORCED;
581 lock_ReleaseMutex(&serverp->mx);
582 cm_ForceNewConnections(serverp);
586 else if (errorCode == RXKADEXPIRED) {
588 lock_ObtainMutex(&userp->mx);
589 ucellp = cm_GetUCell(userp, serverp->cellp);
590 if (ucellp->ticketp) {
591 free(ucellp->ticketp);
592 ucellp->ticketp = NULL;
594 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
596 lock_ReleaseMutex(&userp->mx);
600 } else if (errorCode >= ERROR_TABLE_BASE_RXK && errorCode < ERROR_TABLE_BASE_RXK + 256) {
602 reqp->tokenIdleErrorServp = serverp;
603 reqp->tokenError = errorCode;
606 } else if (errorCode == VICECONNBAD || errorCode == VICETOKENDEAD) {
607 cm_ForceNewConnections(serverp);
612 char * s = "unknown error";
613 switch ( errorCode ) {
614 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
615 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
616 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
617 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
618 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
619 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
620 case RXKADBADKEY : s = "RXKADBADKEY"; break;
621 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
622 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
623 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
624 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
625 case RXKADDATALEN : s = "RXKADDATALEN"; break;
626 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
627 case VSALVAGE : s = "VSALVAGE"; break;
628 case VNOVNODE : s = "VNOVNODE"; break;
629 case VNOVOL : s = "VNOVOL"; break;
630 case VVOLEXISTS : s = "VVOLEXISTS"; break;
631 case VNOSERVICE : s = "VNOSERVICE"; break;
632 case VOFFLINE : s = "VOFFLINE"; break;
633 case VONLINE : s = "VONLINE"; break;
634 case VDISKFULL : s = "VDISKFULL"; break;
635 case VOVERQUOTA : s = "VOVERQUOTA"; break;
636 case VBUSY : s = "VBUSY"; break;
637 case VMOVED : s = "VMOVED"; break;
638 case VIO : s = "VIO"; break;
639 case VRESTRICTED : s = "VRESTRICTED"; break;
640 case VRESTARTING : s = "VRESTARTING"; break;
641 case VREADONLY : s = "VREADONLY"; break;
642 case EAGAIN : s = "EAGAIN"; break;
643 case UAEAGAIN : s = "UAEAGAIN"; break;
644 case EINVAL : s = "EINVAL"; break;
645 case UAEINVAL : s = "UAEINVAL"; break;
646 case EACCES : s = "EACCES"; break;
647 case UAEACCES : s = "UAEACCES"; break;
648 case ENOENT : s = "ENOENT"; break;
649 case UAENOENT : s = "UAENOENT"; break;
650 case VICECONNBAD : s = "VICECONNBAD"; break;
651 case VICETOKENDEAD : s = "VICETOKENDEAD"; break;
652 case WSAEWOULDBLOCK : s = "WSAEWOULDBLOCK"; break;
653 case UAEWOULDBLOCK : s = "UAEWOULDBLOCK"; break;
654 case VL_IDEXIST : s = "VL_IDEXIST"; break;
655 case VL_IO : s = "VL_IO"; break;
656 case VL_NAMEEXIST : s = "VL_NAMEEXIST"; break;
657 case VL_CREATEFAIL : s = "VL_CREATEFAIL"; break;
658 case VL_NOENT : s = "VL_NOENT"; break;
659 case VL_EMPTY : s = "VL_EMPTY"; break;
660 case VL_ENTDELETED : s = "VL_ENTDELETED"; break;
661 case VL_BADNAME : s = "VL_BADNAME"; break;
662 case VL_BADINDEX : s = "VL_BADINDEX"; break;
663 case VL_BADVOLTYPE : s = "VL_BADVOLTYPE"; break;
664 case VL_BADSERVER : s = "VL_BADSERVER"; break;
665 case VL_BADPARTITION : s = "VL_BADPARTITION"; break;
666 case VL_REPSFULL : s = "VL_REPSFULL"; break;
667 case VL_NOREPSERVER : s = "VL_NOREPSERVER"; break;
668 case VL_DUPREPSERVER : s = "VL_DUPREPSERVER"; break;
669 case VL_RWNOTFOUND : s = "VL_RWNOTFOUND"; break;
670 case VL_BADREFCOUNT : s = "VL_BADREFCOUNT"; break;
671 case VL_SIZEEXCEEDED : s = "VL_SIZEEXCEEDED"; break;
672 case VL_BADENTRY : s = "VL_BADENTRY"; break;
673 case VL_BADVOLIDBUMP : s = "VL_BADVOLIDBUMP"; break;
674 case VL_IDALREADYHASHED: s = "VL_IDALREADYHASHED"; break;
675 case VL_ENTRYLOCKED : s = "VL_ENTRYLOCKED"; break;
676 case VL_BADVOLOPER : s = "VL_BADVOLOPER"; break;
677 case VL_BADRELLOCKTYPE : s = "VL_BADRELLOCKTYPE"; break;
678 case VL_RERELEASE : s = "VL_RERELEASE"; break;
679 case VL_BADSERVERFLAG : s = "VL_BADSERVERFLAG"; break;
680 case VL_PERM : s = "VL_PERM"; break;
681 case VL_NOMEM : s = "VL_NOMEM"; break;
682 case VL_BADVERSION : s = "VL_BADVERSION"; break;
683 case VL_INDEXERANGE : s = "VL_INDEXERANGE"; break;
684 case VL_MULTIPADDR : s = "VL_MULTIPADDR"; break;
685 case VL_BADMASK : s = "VL_BADMASK"; break;
686 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
687 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
688 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
689 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
690 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
691 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
692 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
693 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
694 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
695 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
696 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
697 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
698 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
699 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
700 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
701 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
702 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
703 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
704 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
705 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
706 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
707 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
708 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
709 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
710 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
711 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
712 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
713 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
714 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
715 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
716 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
717 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
718 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
719 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
720 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
721 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
722 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
723 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
724 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
725 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
726 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
727 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
728 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
729 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
730 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
731 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
732 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
733 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
734 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
735 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
736 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
738 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
744 /* If not allowed to retry, don't */
745 if (!forcing_new && (reqp->flags & CM_REQ_NORETRY))
747 else if (retry && dead_session)
751 /* drop this on the way out */
755 /* retry until we fail to find a connection */
759 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
760 cm_req_t *reqp, cm_conn_t **connpp)
763 cm_serverRef_t *tsrp;
766 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
767 long timeUsed, timeLeft, hardTimeLeft;
771 if (serversp == NULL) {
772 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_ALLDOWN);
773 return CM_ERROR_ALLDOWN;
776 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
778 /* leave 5 seconds margin of safety */
779 timeLeft = ConnDeadtimeout - timeUsed - 5;
780 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
782 lock_ObtainRead(&cm_serverLock);
783 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
785 if (reqp->tokenIdleErrorServp) {
787 * search the list until we find the server
788 * that failed last time. When we find it
789 * clear the error, skip it and try the one
792 if (tsp == reqp->tokenIdleErrorServp)
793 reqp->tokenIdleErrorServp = NULL;
796 cm_GetServerNoLock(tsp);
797 lock_ReleaseRead(&cm_serverLock);
798 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
800 if (tsrp->status == srv_deleted) {
801 /* skip this entry. no longer valid. */;
802 } else if (tsrp->status == srv_busy) {
805 } else if (tsrp->status == srv_offline) {
811 code = cm_ConnByServer(tsp, usersp, connpp);
812 if (code == 0) { /* cm_CBS only returns 0 */
814 /* Set RPC timeout */
815 if (timeLeft > ConnDeadtimeout)
816 timeLeft = ConnDeadtimeout;
818 if (hardTimeLeft > HardDeadtimeout)
819 hardTimeLeft = HardDeadtimeout;
821 lock_ObtainMutex(&(*connpp)->mx);
822 rx_SetConnDeadTime((*connpp)->callp, timeLeft);
823 rx_SetConnHardDeadTime((*connpp)->callp, (u_short) hardTimeLeft);
824 lock_ReleaseMutex(&(*connpp)->mx);
828 /* therefore, this code is never executed */
833 lock_ObtainRead(&cm_serverLock);
834 cm_PutServerNoLock(tsp);
836 lock_ReleaseRead(&cm_serverLock);
838 if (firstError == 0) {
840 firstError = (reqp->tokenError ? reqp->tokenError :
841 (reqp->idleError ? RX_CALL_TIMEOUT : CM_ERROR_ALLDOWN));
843 firstError = CM_ERROR_ALLBUSY;
844 else if (allOffline || (someBusy && someOffline))
845 firstError = CM_ERROR_ALLOFFLINE;
847 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
848 firstError = CM_ERROR_TIMEDOUT;
852 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
856 /* called with a held server to GC all bad connections hanging off of the server */
857 void cm_GCConnections(cm_server_t *serverp)
863 lock_ObtainWrite(&cm_connLock);
864 lcpp = &serverp->connsp;
865 for (tcp = *lcpp; tcp; tcp = *lcpp) {
867 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
868 /* do the deletion of this guy */
869 cm_PutServer(tcp->serverp);
870 cm_ReleaseUser(userp);
872 rx_DestroyConnection(tcp->callp);
873 lock_FinalizeMutex(&tcp->mx);
877 /* just advance to the next */
881 lock_ReleaseWrite(&cm_connLock);
884 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
885 cm_server_t *serverp)
890 struct rx_securityClass *secObjp;
892 if (serverp->type == CM_SERVER_VLDB) {
897 osi_assertx(serverp->type == CM_SERVER_FILE, "incorrect server type");
901 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
904 tcp->cryptlevel = rxkad_crypt;
906 tcp->cryptlevel = rxkad_clear;
908 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
909 &ucellp->sessionKey, ucellp->kvno,
910 ucellp->ticketLen, ucellp->ticketp);
914 tcp->cryptlevel = rxkad_clear;
915 secObjp = rxnull_NewClientSecurityObject();
917 osi_assertx(secObjp != NULL, "null rx_securityClass");
918 tcp->callp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
923 rx_SetConnDeadTime(tcp->callp, ConnDeadtimeout);
924 rx_SetConnHardDeadTime(tcp->callp, HardDeadtimeout);
925 rx_SetConnIdleDeadTime(tcp->callp, IdleDeadtimeout);
926 tcp->ucgen = ucellp->gen;
928 rxs_Release(secObjp); /* Decrement the initial refCount */
931 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
938 if (cm_anonvldb && serverp->type == CM_SERVER_VLDB)
939 userp = cm_rootUserp;
941 lock_ObtainMutex(&userp->mx);
942 lock_ObtainRead(&cm_connLock);
943 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
944 if (tcp->userp == userp)
948 /* find ucell structure */
949 ucellp = cm_GetUCell(userp, serverp->cellp);
951 lock_ConvertRToW(&cm_connLock);
952 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
953 if (tcp->userp == userp)
957 lock_ReleaseWrite(&cm_connLock);
960 cm_GetServer(serverp);
961 tcp = malloc(sizeof(*tcp));
962 memset(tcp, 0, sizeof(*tcp));
963 tcp->nextp = serverp->connsp;
964 serverp->connsp = tcp;
967 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex");
968 lock_ObtainMutex(&tcp->mx);
969 tcp->serverp = serverp;
970 tcp->cryptlevel = rxkad_clear;
971 cm_NewRXConnection(tcp, ucellp, serverp);
973 lock_ReleaseMutex(&tcp->mx);
974 lock_ReleaseWrite(&cm_connLock);
976 lock_ReleaseRead(&cm_connLock);
978 InterlockedIncrement(&tcp->refCount);
980 lock_ObtainMutex(&tcp->mx);
981 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
982 (tcp->ucgen < ucellp->gen) ||
983 (tcp->cryptlevel != (cryptall ? (ucellp->flags & CM_UCELLFLAG_RXKAD ? rxkad_crypt : rxkad_clear) : rxkad_clear)))
985 if (tcp->ucgen < ucellp->gen)
986 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
988 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
989 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
990 rx_DestroyConnection(tcp->callp);
991 cm_NewRXConnection(tcp, ucellp, serverp);
993 lock_ReleaseMutex(&tcp->mx);
995 lock_ReleaseMutex(&userp->mx);
997 /* return this pointer to our caller */
998 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
1004 long cm_ServerAvailable(struct cm_fid *fidp, struct cm_user *userp)
1008 cm_serverRef_t **serverspp;
1009 cm_serverRef_t *tsrp;
1011 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
1015 code = cm_GetServerList(fidp, userp, &req, &serverspp);
1019 lock_ObtainRead(&cm_serverLock);
1020 for (tsrp = *serverspp; tsrp; tsrp=tsrp->next) {
1022 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
1024 if (tsrp->status == srv_busy) {
1027 } else if (tsrp->status == srv_offline) {
1036 lock_ReleaseRead(&cm_serverLock);
1037 cm_FreeServerList(serverspp, 0);
1043 else if (allOffline || (someBusy && someOffline))
1050 * The returned cm_conn_t ** object is released in the subsequent call
1053 long cm_ConnFromFID(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
1057 cm_serverRef_t **serverspp;
1061 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
1066 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1067 cm_FreeServerList(serverspp, 0);
1072 long cm_ConnFromVolume(struct cm_volume *volp, unsigned long volid, struct cm_user *userp, cm_req_t *reqp,
1076 cm_serverRef_t **serverspp;
1080 serverspp = cm_GetVolServers(volp, volid);
1082 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1083 cm_FreeServerList(serverspp, 0);
1088 extern struct rx_connection *
1089 cm_GetRxConn(cm_conn_t *connp)
1091 struct rx_connection * rxconn;
1092 lock_ObtainMutex(&connp->mx);
1093 rxconn = connp->callp;
1094 rx_GetConnection(rxconn);
1095 lock_ReleaseMutex(&connp->mx);
1099 void cm_ForceNewConnections(cm_server_t *serverp)
1103 lock_ObtainWrite(&cm_connLock);
1104 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1105 lock_ObtainMutex(&tcp->mx);
1106 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
1107 lock_ReleaseMutex(&tcp->mx);
1109 lock_ReleaseWrite(&cm_connLock);