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;
30 #define LANMAN_WKS_PARAM_KEY "SYSTEM\\CurrentControlSet\\Services\\lanmanworkstation\\parameters"
31 #define LANMAN_WKS_SESSION_TIMEOUT "SessTimeout"
33 afs_uint32 cryptall = 0;
34 afs_uint32 cm_anonvldb = 0;
36 void cm_PutConn(cm_conn_t *connp)
38 afs_int32 refCount = InterlockedDecrement(&connp->refCount);
39 osi_assertx(refCount >= 0, "cm_conn_t refcount underflow");
42 void cm_InitConn(void)
44 static osi_once_t once;
50 if (osi_Once(&once)) {
51 lock_InitializeRWLock(&cm_connLock, "connection global lock");
53 /* keisa - read timeout value for lanmanworkstation service.
55 * http://support.microsoft.com:80/support/kb/articles/Q102/0/67.asp&NoWebContent=1
56 * the SessTimeout is a minimum timeout not a maximum timeout. Therefore,
57 * I believe that the default should not be short. Instead, we should wait until
58 * RX times out before reporting a timeout to the SMB client.
60 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, LANMAN_WKS_PARAM_KEY,
61 0, KEY_QUERY_VALUE, &parmKey);
62 if (code == ERROR_SUCCESS)
64 dummyLen = sizeof(DWORD);
65 code = RegQueryValueEx(parmKey, LANMAN_WKS_SESSION_TIMEOUT, NULL, NULL,
66 (BYTE *) &dwValue, &dummyLen);
67 if (code == ERROR_SUCCESS)
72 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
73 0, KEY_QUERY_VALUE, &parmKey);
74 if (code == ERROR_SUCCESS) {
75 dummyLen = sizeof(DWORD);
76 code = RegQueryValueEx(parmKey, "ConnDeadTimeout", NULL, NULL,
77 (BYTE *) &dwValue, &dummyLen);
78 if (code == ERROR_SUCCESS)
79 ConnDeadtimeout = (unsigned short)dwValue;
81 dummyLen = sizeof(DWORD);
82 code = RegQueryValueEx(parmKey, "HardDeadTimeout", NULL, NULL,
83 (BYTE *) &dwValue, &dummyLen);
84 if (code == ERROR_SUCCESS)
85 HardDeadtimeout = (unsigned short)dwValue;
86 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
90 afsi_log("lanmanworkstation : SessTimeout %u", RDRtimeout);
91 if (ConnDeadtimeout == 0)
92 ConnDeadtimeout = (unsigned short) (RDRtimeout / 2);
93 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
94 if (HardDeadtimeout == 0)
95 HardDeadtimeout = (unsigned short) RDRtimeout;
96 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
102 void cm_InitReq(cm_req_t *reqp)
104 memset((char *)reqp, 0, sizeof(cm_req_t));
105 reqp->startTime = GetTickCount();
108 static long cm_GetServerList(struct cm_fid *fidp, struct cm_user *userp,
109 struct cm_req *reqp, cm_serverRef_t ***serversppp)
112 cm_volume_t *volp = NULL;
113 cm_cell_t *cellp = NULL;
117 return CM_ERROR_INVAL;
120 cellp = cm_FindCellByID(fidp->cell, 0);
122 return CM_ERROR_NOSUCHCELL;
124 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp, CM_GETVOL_FLAG_CREATE, &volp);
128 *serversppp = cm_GetVolServers(volp, fidp->volume);
135 * Analyze the error return from an RPC. Determine whether or not to retry,
136 * and if we're going to retry, determine whether failover is appropriate,
137 * and whether timed backoff is appropriate.
139 * If the error code is from cm_ConnFromFID() or friends, it will be a CM_ERROR code.
140 * Otherwise it will be an RPC code. This may be a UNIX code (e.g. EDQUOT), or
141 * it may be an RX code, or it may be a special code (e.g. VNOVOL), or it may
142 * be a security code (e.g. RXKADEXPIRED).
144 * If the error code is from cm_ConnFromFID() or friends, connp will be NULL.
146 * For VLDB calls, fidp will be NULL.
148 * volSyncp and/or cbrp may also be NULL.
151 cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
153 AFSVolSync *volSyncp,
154 cm_serverRef_t * serversp,
155 cm_callbackRequest_t *cbrp, long errorCode)
157 cm_server_t *serverp = NULL;
158 cm_serverRef_t **serverspp = NULL;
159 cm_serverRef_t *tsrp;
160 cm_cell_t *cellp = NULL;
162 cm_volume_t * volp = NULL;
163 cm_vol_state_t *statep = NULL;
165 int free_svr_list = 0;
167 long timeUsed, timeLeft;
172 osi_Log2(afsd_logp, "cm_Analyze connp 0x%p, code 0x%x",
175 /* no locking required, since connp->serverp never changes after
177 dead_session = (userp->cellInfop == NULL);
179 serverp = connp->serverp;
181 /* Update callback pointer */
182 if (cbrp && serverp && errorCode == 0) {
184 if ( cbrp->serverp != serverp ) {
185 lock_ObtainWrite(&cm_serverLock);
186 cm_PutServerNoLock(cbrp->serverp);
187 cm_GetServerNoLock(serverp);
188 lock_ReleaseWrite(&cm_serverLock);
191 cm_GetServer(serverp);
193 lock_ObtainWrite(&cm_callbackLock);
194 cbrp->serverp = serverp;
195 lock_ReleaseWrite(&cm_callbackLock);
198 /* if timeout - check that it did not exceed the HardDead timeout
201 /* timeleft - get if from reqp the same way as cmXonnByMServers does */
202 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
204 /* leave 5 seconds margin for sleep */
205 if (reqp->flags & CM_REQ_NORETRY)
208 timeLeft = HardDeadtimeout - timeUsed;
210 /* get a pointer to the cell */
212 if (cellp == NULL && serverp)
213 cellp = serverp->cellp;
214 if (cellp == NULL && serversp) {
215 struct cm_serverRef * refp;
216 for ( refp=serversp ; cellp == NULL && refp != NULL; refp=refp->next) {
218 cellp = refp->server->cellp;
221 if (cellp == NULL && fidp) {
222 cellp = cm_FindCellByID(fidp->cell, 0);
226 if (errorCode == CM_ERROR_TIMEDOUT) {
227 if ( timeLeft > 5 ) {
229 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
234 else if (errorCode == UAEWOULDBLOCK || errorCode == EWOULDBLOCK ||
235 errorCode == UAEAGAIN || errorCode == EAGAIN) {
236 osi_Log0(afsd_logp, "cm_Analyze passed EWOULDBLOCK or EAGAIN.");
237 if ( timeLeft > 5 ) {
243 /* if there is nosuchvolume, then we have a situation in which a
244 * previously known volume no longer has a set of servers
245 * associated with it. Either the volume has moved or
246 * the volume has been deleted. Try to find a new server list
247 * until the timeout period expires.
249 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
250 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
256 if (fidp != NULL) /* Not a VLDB call */
257 cm_ForceUpdateVolume(fidp, userp, reqp);
261 else if (errorCode == CM_ERROR_ALLDOWN) {
262 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
263 /* Servers marked DOWN will be restored by the background daemon
264 * thread as they become available.
268 else if (errorCode == CM_ERROR_ALLOFFLINE) {
269 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
270 /* Volume instances marked offline will be restored by the
271 * background daemon thread as they become available
273 if (timeLeft > 7 && fidp) {
276 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
277 CM_GETVOL_FLAG_NO_LRU_UPDATE,
280 statep = cm_VolumeStateByID(volp, fidp->volume);
281 if (statep->state != vl_offline && statep->state != vl_unknown) {
284 if (cm_CheckOfflineVolume(volp, statep->ID))
292 else if (errorCode == CM_ERROR_ALLBUSY) {
293 /* Volumes that are busy cannot be determined to be non-busy
294 * without actually attempting to access them.
296 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
301 if (fidp) { /* File Server query */
302 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
303 CM_GETVOL_FLAG_NO_LRU_UPDATE,
306 statep = cm_VolumeStateByID(volp, fidp->volume);
307 if (statep->state != vl_offline &&
308 statep->state != vl_busy &&
309 statep->state != vl_unknown) {
313 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
315 serversp = *serverspp;
319 lock_ObtainWrite(&cm_serverLock);
320 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
321 if (tsrp->status == srv_busy) {
322 tsrp->status = srv_not_busy;
325 lock_ReleaseWrite(&cm_serverLock);
327 cm_FreeServerList(&serversp, 0);
328 *serverspp = serversp;
331 cm_UpdateVolumeStatus(volp, statep->ID);
337 } else { /* VL Server query */
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);
352 /* special codes: VBUSY and VRESTARTING */
353 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
354 if (!serversp && fidp) {
355 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
357 serversp = *serverspp;
361 lock_ObtainWrite(&cm_serverLock);
362 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
363 if (tsrp->server == serverp && tsrp->status == srv_not_busy) {
364 tsrp->status = srv_busy;
365 if (fidp) { /* File Server query */
366 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
367 CM_GETVOL_FLAG_NO_LRU_UPDATE,
370 statep = cm_VolumeStateByID(volp, fidp->volume);
375 lock_ReleaseWrite(&cm_serverLock);
378 cm_UpdateVolumeStatus(volp, statep->ID);
383 cm_FreeServerList(&serversp, 0);
384 *serverspp = serversp;
389 /* special codes: missing volumes */
390 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
391 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
396 switch ( errorCode ) {
398 msgID = MSG_SERVER_REPORTS_VNOVOL;
399 format = "Server %s reported volume %d as not attached.";
402 msgID = MSG_SERVER_REPORTS_VMOVED;
403 format = "Server %s reported volume %d as moved.";
406 msgID = MSG_SERVER_REPORTS_VOFFLINE;
407 format = "Server %s reported volume %d as offline.";
410 msgID = MSG_SERVER_REPORTS_VSALVAGE;
411 format = "Server %s reported volume %d as needs salvage.";
414 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
415 format = "Server %s reported volume %d as not in service.";
418 msgID = MSG_SERVER_REPORTS_VIO;
419 format = "Server %s reported volume %d as temporarily unaccessible.";
423 if (serverp && fidp) {
424 /* Log server being offline for this volume */
425 sprintf(addr, "%d.%d.%d.%d",
426 ((serverp->addr.sin_addr.s_addr & 0xff)),
427 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
428 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
429 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
431 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
432 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
435 /* Mark server offline for this volume */
436 if (!serversp && fidp) {
437 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
439 serversp = *serverspp;
444 lock_ObtainWrite(&cm_serverLock);
445 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
446 if (tsrp->server == serverp) {
448 if (errorCode == VMOVED) {
449 tsrp->status = srv_deleted;
451 tsrp->status = srv_offline;
454 if (fidp) { /* File Server query */
455 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
456 CM_GETVOL_FLAG_NO_LRU_UPDATE,
459 cm_VolumeStateByID(volp, fidp->volume);
463 lock_ReleaseWrite(&cm_serverLock);
465 if (fidp && errorCode == VMOVED)
466 cm_ForceUpdateVolume(fidp, userp, reqp);
469 cm_UpdateVolumeStatus(volp, statep->ID);
474 cm_FreeServerList(&serversp, 0);
475 *serverspp = serversp;
479 } else if ( errorCode == VNOVNODE ) {
482 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
483 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
485 scp = cm_FindSCache(fidp);
487 cm_scache_t *pscp = NULL;
489 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
490 pscp = cm_FindSCacheParent(scp);
492 lock_ObtainWrite(&scp->rw);
493 lock_ObtainWrite(&cm_scacheLock);
494 cm_RemoveSCacheFromHashTable(scp);
495 lock_ReleaseWrite(&cm_scacheLock);
496 cm_LockMarkSCacheLost(scp);
497 scp->flags |= CM_SCACHEFLAG_DELETED;
498 lock_ReleaseWrite(&scp->rw);
499 cm_ReleaseSCache(scp);
502 if (cm_HaveCallback(pscp)) {
503 lock_ObtainWrite(&pscp->rw);
504 cm_DiscardSCache(pscp);
505 lock_ReleaseWrite(&pscp->rw);
507 cm_ReleaseSCache(pscp);
511 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
516 else if (errorCode == RX_CALL_TIMEOUT) {
517 /* server took longer than hardDeadTime
518 * don't mark server as down but don't retry
519 * this is to prevent the SMB session from timing out
520 * In addition, we log an event to the event log
523 /* Log server being offline for this volume */
524 sprintf(addr, "%d.%d.%d.%d",
525 ((serverp->addr.sin_addr.s_addr & 0xff)),
526 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
527 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
528 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
530 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
533 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime exceeded addr[%s]",
534 osi_LogSaveString(afsd_logp,addr));
536 else if (errorCode >= -64 && errorCode < 0) {
537 /* mark server as down */
538 lock_ObtainMutex(&serverp->mx);
539 if (reqp->flags & CM_REQ_NEW_CONN_FORCED) {
540 if (!(serverp->flags & CM_SERVERFLAG_DOWN)) {
541 serverp->flags |= CM_SERVERFLAG_DOWN;
542 serverp->downTime = time(NULL);
545 reqp->flags |= CM_REQ_NEW_CONN_FORCED;
548 lock_ReleaseMutex(&serverp->mx);
549 cm_ForceNewConnections(serverp);
553 else if (errorCode == RXKADEXPIRED) {
555 lock_ObtainMutex(&userp->mx);
556 ucellp = cm_GetUCell(userp, serverp->cellp);
557 if (ucellp->ticketp) {
558 free(ucellp->ticketp);
559 ucellp->ticketp = NULL;
561 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
563 lock_ReleaseMutex(&userp->mx);
567 } else if (errorCode >= ERROR_TABLE_BASE_RXK && errorCode < ERROR_TABLE_BASE_RXK + 256) {
568 reqp->tokenErrorServp = serverp;
569 reqp->tokenError = errorCode;
571 } else if (errorCode == VICECONNBAD || errorCode == VICETOKENDEAD) {
572 cm_ForceNewConnections(serverp);
577 char * s = "unknown error";
578 switch ( errorCode ) {
579 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
580 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
581 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
582 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
583 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
584 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
585 case RXKADBADKEY : s = "RXKADBADKEY"; break;
586 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
587 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
588 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
589 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
590 case RXKADDATALEN : s = "RXKADDATALEN"; break;
591 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
592 case VSALVAGE : s = "VSALVAGE"; break;
593 case VNOVNODE : s = "VNOVNODE"; break;
594 case VNOVOL : s = "VNOVOL"; break;
595 case VVOLEXISTS : s = "VVOLEXISTS"; break;
596 case VNOSERVICE : s = "VNOSERVICE"; break;
597 case VOFFLINE : s = "VOFFLINE"; break;
598 case VONLINE : s = "VONLINE"; break;
599 case VDISKFULL : s = "VDISKFULL"; break;
600 case VOVERQUOTA : s = "VOVERQUOTA"; break;
601 case VBUSY : s = "VBUSY"; break;
602 case VMOVED : s = "VMOVED"; break;
603 case VIO : s = "VIO"; break;
604 case VRESTRICTED : s = "VRESTRICTED"; break;
605 case VRESTARTING : s = "VRESTARTING"; break;
606 case VREADONLY : s = "VREADONLY"; break;
607 case EAGAIN : s = "EAGAIN"; break;
608 case UAEAGAIN : s = "UAEAGAIN"; break;
609 case EINVAL : s = "EINVAL"; break;
610 case UAEINVAL : s = "UAEINVAL"; break;
611 case EACCES : s = "EACCES"; break;
612 case UAEACCES : s = "UAEACCES"; break;
613 case ENOENT : s = "ENOENT"; break;
614 case UAENOENT : s = "UAENOENT"; break;
615 case VICECONNBAD : s = "VICECONNBAD"; break;
616 case VICETOKENDEAD : s = "VICETOKENDEAD"; break;
617 case WSAEWOULDBLOCK : s = "WSAEWOULDBLOCK"; break;
618 case UAEWOULDBLOCK : s = "UAEWOULDBLOCK"; break;
619 case VL_IDEXIST : s = "VL_IDEXIST"; break;
620 case VL_IO : s = "VL_IO"; break;
621 case VL_NAMEEXIST : s = "VL_NAMEEXIST"; break;
622 case VL_CREATEFAIL : s = "VL_CREATEFAIL"; break;
623 case VL_NOENT : s = "VL_NOENT"; break;
624 case VL_EMPTY : s = "VL_EMPTY"; break;
625 case VL_ENTDELETED : s = "VL_ENTDELETED"; break;
626 case VL_BADNAME : s = "VL_BADNAME"; break;
627 case VL_BADINDEX : s = "VL_BADINDEX"; break;
628 case VL_BADVOLTYPE : s = "VL_BADVOLTYPE"; break;
629 case VL_BADSERVER : s = "VL_BADSERVER"; break;
630 case VL_BADPARTITION : s = "VL_BADPARTITION"; break;
631 case VL_REPSFULL : s = "VL_REPSFULL"; break;
632 case VL_NOREPSERVER : s = "VL_NOREPSERVER"; break;
633 case VL_DUPREPSERVER : s = "VL_DUPREPSERVER"; break;
634 case VL_RWNOTFOUND : s = "VL_RWNOTFOUND"; break;
635 case VL_BADREFCOUNT : s = "VL_BADREFCOUNT"; break;
636 case VL_SIZEEXCEEDED : s = "VL_SIZEEXCEEDED"; break;
637 case VL_BADENTRY : s = "VL_BADENTRY"; break;
638 case VL_BADVOLIDBUMP : s = "VL_BADVOLIDBUMP"; break;
639 case VL_IDALREADYHASHED: s = "VL_IDALREADYHASHED"; break;
640 case VL_ENTRYLOCKED : s = "VL_ENTRYLOCKED"; break;
641 case VL_BADVOLOPER : s = "VL_BADVOLOPER"; break;
642 case VL_BADRELLOCKTYPE : s = "VL_BADRELLOCKTYPE"; break;
643 case VL_RERELEASE : s = "VL_RERELEASE"; break;
644 case VL_BADSERVERFLAG : s = "VL_BADSERVERFLAG"; break;
645 case VL_PERM : s = "VL_PERM"; break;
646 case VL_NOMEM : s = "VL_NOMEM"; break;
647 case VL_BADVERSION : s = "VL_BADVERSION"; break;
648 case VL_INDEXERANGE : s = "VL_INDEXERANGE"; break;
649 case VL_MULTIPADDR : s = "VL_MULTIPADDR"; break;
650 case VL_BADMASK : s = "VL_BADMASK"; break;
651 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
652 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
653 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
654 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
655 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
656 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
657 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
658 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
659 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
660 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
661 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
662 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
663 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
664 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
665 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
666 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
667 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
668 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
669 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
670 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
671 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
672 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
673 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
674 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
675 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
676 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
677 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
678 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
679 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
680 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
681 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
682 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
683 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
684 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
685 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
686 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
687 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
688 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
689 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
690 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
691 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
692 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
693 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
694 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
695 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
696 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
697 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
698 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
699 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
700 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
701 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
703 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
709 /* If not allowed to retry, don't */
710 if (!forcing_new && (reqp->flags & CM_REQ_NORETRY))
712 else if (retry && dead_session)
716 /* drop this on the way out */
720 /* retry until we fail to find a connection */
724 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
725 cm_req_t *reqp, cm_conn_t **connpp)
728 cm_serverRef_t *tsrp;
731 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
732 long timeUsed, timeLeft, hardTimeLeft;
736 if (serversp == NULL) {
737 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_ALLDOWN);
738 return CM_ERROR_ALLDOWN;
741 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
743 /* leave 5 seconds margin of safety */
744 timeLeft = ConnDeadtimeout - timeUsed - 5;
745 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
747 lock_ObtainRead(&cm_serverLock);
748 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
750 if (reqp->tokenErrorServp) {
752 * search the list until we find the server
753 * that failed last time. When we find it
754 * clear the error, skip it and try the one
757 if (tsp == reqp->tokenErrorServp)
758 reqp->tokenErrorServp = NULL;
761 cm_GetServerNoLock(tsp);
762 lock_ReleaseRead(&cm_serverLock);
763 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
765 if (tsrp->status == srv_deleted) {
766 /* skip this entry. no longer valid. */;
767 } else if (tsrp->status == srv_busy) {
770 } else if (tsrp->status == srv_offline) {
776 code = cm_ConnByServer(tsp, usersp, connpp);
777 if (code == 0) { /* cm_CBS only returns 0 */
779 /* Set RPC timeout */
780 if (timeLeft > ConnDeadtimeout)
781 timeLeft = ConnDeadtimeout;
783 if (hardTimeLeft > HardDeadtimeout)
784 hardTimeLeft = HardDeadtimeout;
786 lock_ObtainMutex(&(*connpp)->mx);
787 rx_SetConnDeadTime((*connpp)->callp, timeLeft);
788 rx_SetConnHardDeadTime((*connpp)->callp, (u_short) hardTimeLeft);
789 lock_ReleaseMutex(&(*connpp)->mx);
793 /* therefore, this code is never executed */
798 lock_ObtainRead(&cm_serverLock);
799 cm_PutServerNoLock(tsp);
801 lock_ReleaseRead(&cm_serverLock);
803 if (firstError == 0) {
805 firstError = (reqp->tokenError ? reqp->tokenError : CM_ERROR_ALLDOWN);
807 firstError = CM_ERROR_ALLBUSY;
808 else if (allOffline || (someBusy && someOffline))
809 firstError = CM_ERROR_ALLOFFLINE;
811 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
812 firstError = CM_ERROR_TIMEDOUT;
816 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
820 /* called with a held server to GC all bad connections hanging off of the server */
821 void cm_GCConnections(cm_server_t *serverp)
827 lock_ObtainWrite(&cm_connLock);
828 lcpp = &serverp->connsp;
829 for (tcp = *lcpp; tcp; tcp = *lcpp) {
831 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
832 /* do the deletion of this guy */
833 cm_PutServer(tcp->serverp);
834 cm_ReleaseUser(userp);
836 rx_DestroyConnection(tcp->callp);
837 lock_FinalizeMutex(&tcp->mx);
841 /* just advance to the next */
845 lock_ReleaseWrite(&cm_connLock);
848 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
849 cm_server_t *serverp)
854 struct rx_securityClass *secObjp;
856 if (serverp->type == CM_SERVER_VLDB) {
861 osi_assertx(serverp->type == CM_SERVER_FILE, "incorrect server type");
865 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
868 tcp->cryptlevel = rxkad_crypt;
870 tcp->cryptlevel = rxkad_clear;
872 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
873 &ucellp->sessionKey, ucellp->kvno,
874 ucellp->ticketLen, ucellp->ticketp);
878 tcp->cryptlevel = rxkad_clear;
879 secObjp = rxnull_NewClientSecurityObject();
881 osi_assertx(secObjp != NULL, "null rx_securityClass");
882 tcp->callp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
887 rx_SetConnDeadTime(tcp->callp, ConnDeadtimeout);
888 rx_SetConnHardDeadTime(tcp->callp, HardDeadtimeout);
889 tcp->ucgen = ucellp->gen;
891 rxs_Release(secObjp); /* Decrement the initial refCount */
894 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
901 if (cm_anonvldb && serverp->type == CM_SERVER_VLDB)
902 userp = cm_rootUserp;
904 lock_ObtainMutex(&userp->mx);
905 lock_ObtainRead(&cm_connLock);
906 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
907 if (tcp->userp == userp)
911 /* find ucell structure */
912 ucellp = cm_GetUCell(userp, serverp->cellp);
914 lock_ConvertRToW(&cm_connLock);
915 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
916 if (tcp->userp == userp)
920 lock_ReleaseWrite(&cm_connLock);
923 cm_GetServer(serverp);
924 tcp = malloc(sizeof(*tcp));
925 memset(tcp, 0, sizeof(*tcp));
926 tcp->nextp = serverp->connsp;
927 serverp->connsp = tcp;
930 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex");
931 lock_ObtainMutex(&tcp->mx);
932 tcp->serverp = serverp;
933 tcp->cryptlevel = rxkad_clear;
934 cm_NewRXConnection(tcp, ucellp, serverp);
936 lock_ReleaseMutex(&tcp->mx);
937 lock_ReleaseWrite(&cm_connLock);
939 lock_ReleaseRead(&cm_connLock);
941 InterlockedIncrement(&tcp->refCount);
943 lock_ObtainMutex(&tcp->mx);
944 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
945 (tcp->ucgen < ucellp->gen) ||
946 (tcp->cryptlevel != (cryptall ? (ucellp->flags & CM_UCELLFLAG_RXKAD ? rxkad_crypt : rxkad_clear) : rxkad_clear)))
948 if (tcp->ucgen < ucellp->gen)
949 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
951 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
952 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
953 rx_DestroyConnection(tcp->callp);
954 cm_NewRXConnection(tcp, ucellp, serverp);
956 lock_ReleaseMutex(&tcp->mx);
958 lock_ReleaseMutex(&userp->mx);
960 /* return this pointer to our caller */
961 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
967 long cm_ServerAvailable(struct cm_fid *fidp, struct cm_user *userp)
971 cm_serverRef_t **serverspp;
972 cm_serverRef_t *tsrp;
974 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
978 code = cm_GetServerList(fidp, userp, &req, &serverspp);
982 lock_ObtainRead(&cm_serverLock);
983 for (tsrp = *serverspp; tsrp; tsrp=tsrp->next) {
985 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
987 if (tsrp->status == srv_busy) {
990 } else if (tsrp->status == srv_offline) {
999 lock_ReleaseRead(&cm_serverLock);
1000 cm_FreeServerList(serverspp, 0);
1006 else if (allOffline || (someBusy && someOffline))
1013 * The returned cm_conn_t ** object is released in the subsequent call
1016 long cm_ConnFromFID(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
1020 cm_serverRef_t **serverspp;
1024 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
1029 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1030 cm_FreeServerList(serverspp, 0);
1035 long cm_ConnFromVolume(struct cm_volume *volp, unsigned long volid, struct cm_user *userp, cm_req_t *reqp,
1039 cm_serverRef_t **serverspp;
1043 serverspp = cm_GetVolServers(volp, volid);
1045 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1046 cm_FreeServerList(serverspp, 0);
1051 extern struct rx_connection *
1052 cm_GetRxConn(cm_conn_t *connp)
1054 struct rx_connection * rxconn;
1055 lock_ObtainMutex(&connp->mx);
1056 rxconn = connp->callp;
1057 rx_GetConnection(rxconn);
1058 lock_ReleaseMutex(&connp->mx);
1062 void cm_ForceNewConnections(cm_server_t *serverp)
1066 lock_ObtainWrite(&cm_connLock);
1067 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1068 lock_ObtainMutex(&tcp->mx);
1069 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
1070 lock_ReleaseMutex(&tcp->mx);
1072 lock_ReleaseWrite(&cm_connLock);