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 (ConnDeadtimeout == 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);
146 lock_ObtainRead(&cm_volumeLock);
148 lock_ReleaseRead(&cm_volumeLock);
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) {
236 cellp = refp->server->cellp;
239 if (cellp == NULL && fidp) {
240 cellp = cm_FindCellByID(fidp->cell, 0);
244 if (errorCode == CM_ERROR_TIMEDOUT) {
245 if ( timeLeft > 5 ) {
247 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
252 else if (errorCode == UAEWOULDBLOCK || errorCode == EWOULDBLOCK ||
253 errorCode == UAEAGAIN || errorCode == EAGAIN) {
254 osi_Log0(afsd_logp, "cm_Analyze passed EWOULDBLOCK or EAGAIN.");
255 if ( timeLeft > 5 ) {
261 /* if there is nosuchvolume, then we have a situation in which a
262 * previously known volume no longer has a set of servers
263 * associated with it. Either the volume has moved or
264 * the volume has been deleted. Try to find a new server list
265 * until the timeout period expires.
267 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
268 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
274 if (fidp != NULL) /* Not a VLDB call */
275 cm_ForceUpdateVolume(fidp, userp, reqp);
279 else if (errorCode == CM_ERROR_ALLDOWN) {
280 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
281 /* Servers marked DOWN will be restored by the background daemon
282 * thread as they become available. The volume status is
283 * updated as the server state changes.
287 else if (errorCode == CM_ERROR_ALLOFFLINE) {
288 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
289 /* Volume instances marked offline will be restored by the
290 * background daemon thread as they become available
293 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
294 CM_GETVOL_FLAG_NO_LRU_UPDATE,
300 /* cm_CheckOfflineVolume() resets the serverRef state */
301 if (cm_CheckOfflineVolume(volp, fidp->volume))
304 cm_UpdateVolumeStatus(volp, fidp->volume);
306 lock_ObtainRead(&cm_volumeLock);
308 lock_ReleaseRead(&cm_volumeLock);
313 else if (errorCode == CM_ERROR_ALLBUSY) {
314 /* Volumes that are busy cannot be determined to be non-busy
315 * without actually attempting to access them.
317 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
319 if (fidp) { /* File Server query */
320 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
321 CM_GETVOL_FLAG_NO_LRU_UPDATE,
327 statep = cm_VolumeStateByID(volp, fidp->volume);
328 if (statep->state != vl_offline &&
329 statep->state != vl_busy &&
330 statep->state != vl_unknown) {
334 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
336 serversp = *serverspp;
340 lock_ObtainWrite(&cm_serverLock);
341 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
342 if (tsrp->status == srv_busy) {
343 tsrp->status = srv_not_busy;
346 lock_ReleaseWrite(&cm_serverLock);
348 cm_FreeServerList(&serversp, 0);
349 *serverspp = serversp;
352 cm_UpdateVolumeStatus(volp, fidp->volume);
356 cm_UpdateVolumeStatus(volp, fidp->volume);
359 lock_ObtainRead(&cm_volumeLock);
361 lock_ReleaseRead(&cm_volumeLock);
364 } else { /* VL Server query */
369 lock_ObtainWrite(&cm_serverLock);
370 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
371 if (tsrp->status == srv_busy) {
372 tsrp->status = srv_not_busy;
375 lock_ReleaseWrite(&cm_serverLock);
382 /* special codes: VBUSY and VRESTARTING */
383 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
384 if (!serversp && fidp) {
385 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
387 serversp = *serverspp;
391 lock_ObtainWrite(&cm_serverLock);
392 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
393 if (tsrp->server == serverp && tsrp->status == srv_not_busy) {
394 tsrp->status = srv_busy;
395 if (fidp) { /* File Server query */
396 lock_ReleaseWrite(&cm_serverLock);
397 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
398 CM_GETVOL_FLAG_NO_LRU_UPDATE,
401 statep = cm_VolumeStateByID(volp, fidp->volume);
402 lock_ObtainWrite(&cm_serverLock);
407 lock_ReleaseWrite(&cm_serverLock);
410 cm_UpdateVolumeStatus(volp, statep->ID);
411 lock_ObtainRead(&cm_volumeLock);
413 lock_ReleaseRead(&cm_volumeLock);
418 cm_FreeServerList(&serversp, 0);
419 *serverspp = serversp;
424 /* special codes: missing volumes */
425 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
426 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
431 switch ( errorCode ) {
433 msgID = MSG_SERVER_REPORTS_VNOVOL;
434 format = "Server %s reported volume %d as not attached.";
437 msgID = MSG_SERVER_REPORTS_VMOVED;
438 format = "Server %s reported volume %d as moved.";
441 msgID = MSG_SERVER_REPORTS_VOFFLINE;
442 format = "Server %s reported volume %d as offline.";
445 msgID = MSG_SERVER_REPORTS_VSALVAGE;
446 format = "Server %s reported volume %d as needs salvage.";
449 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
450 format = "Server %s reported volume %d as not in service.";
453 msgID = MSG_SERVER_REPORTS_VIO;
454 format = "Server %s reported volume %d as temporarily unaccessible.";
458 if (serverp && fidp) {
459 /* Log server being offline for this volume */
460 sprintf(addr, "%d.%d.%d.%d",
461 ((serverp->addr.sin_addr.s_addr & 0xff)),
462 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
463 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
464 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
466 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
467 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
470 /* Mark server offline for this volume */
471 if (!serversp && fidp) {
472 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
474 serversp = *serverspp;
479 lock_ObtainWrite(&cm_serverLock);
480 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
481 if (tsrp->server == serverp) {
483 if (errorCode == VMOVED) {
484 tsrp->status = srv_deleted;
486 tsrp->status = srv_offline;
489 if (fidp) { /* File Server query */
490 lock_ReleaseWrite(&cm_serverLock);
491 code = cm_FindVolumeByID(cellp, fidp->volume, userp, reqp,
492 CM_GETVOL_FLAG_NO_LRU_UPDATE,
495 cm_VolumeStateByID(volp, fidp->volume);
496 lock_ObtainWrite(&cm_serverLock);
500 lock_ReleaseWrite(&cm_serverLock);
502 if (fidp && errorCode == VMOVED)
503 cm_ForceUpdateVolume(fidp, userp, reqp);
506 cm_UpdateVolumeStatus(volp, statep->ID);
507 lock_ObtainRead(&cm_volumeLock);
509 lock_ReleaseRead(&cm_volumeLock);
514 cm_FreeServerList(&serversp, 0);
515 *serverspp = serversp;
519 } else if ( errorCode == VNOVNODE ) {
522 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
523 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
525 scp = cm_FindSCache(fidp);
527 cm_scache_t *pscp = NULL;
529 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
530 pscp = cm_FindSCacheParent(scp);
532 lock_ObtainWrite(&scp->rw);
533 lock_ObtainWrite(&cm_scacheLock);
534 cm_RemoveSCacheFromHashTable(scp);
535 lock_ReleaseWrite(&cm_scacheLock);
536 cm_LockMarkSCacheLost(scp);
537 scp->flags |= CM_SCACHEFLAG_DELETED;
538 lock_ReleaseWrite(&scp->rw);
539 cm_ReleaseSCache(scp);
542 if (cm_HaveCallback(pscp)) {
543 lock_ObtainWrite(&pscp->rw);
544 cm_DiscardSCache(pscp);
545 lock_ReleaseWrite(&pscp->rw);
547 cm_ReleaseSCache(pscp);
551 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
556 else if (errorCode == RX_CALL_TIMEOUT) {
557 /* server took longer than hardDeadTime
558 * don't mark server as down but don't retry
559 * this is to prevent the SMB session from timing out
560 * In addition, we log an event to the event log
564 /* Log server being offline for this volume */
565 sprintf(addr, "%d.%d.%d.%d",
566 ((serverp->addr.sin_addr.s_addr & 0xff)),
567 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
568 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
569 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
571 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
573 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime exceeded addr[%s]",
574 osi_LogSaveString(afsd_logp,addr));
575 reqp->tokenIdleErrorServp = serverp;
580 else if (errorCode >= -64 && errorCode < 0) {
581 /* mark server as down */
582 lock_ObtainMutex(&serverp->mx);
583 if (reqp->flags & CM_REQ_NEW_CONN_FORCED) {
584 if (!(serverp->flags & CM_SERVERFLAG_DOWN)) {
585 serverp->flags |= CM_SERVERFLAG_DOWN;
586 serverp->downTime = time(NULL);
589 reqp->flags |= CM_REQ_NEW_CONN_FORCED;
592 lock_ReleaseMutex(&serverp->mx);
593 cm_ForceNewConnections(serverp);
597 else if (errorCode == RXKADEXPIRED) {
599 lock_ObtainMutex(&userp->mx);
600 ucellp = cm_GetUCell(userp, serverp->cellp);
601 if (ucellp->ticketp) {
602 free(ucellp->ticketp);
603 ucellp->ticketp = NULL;
605 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
607 lock_ReleaseMutex(&userp->mx);
611 } else if (errorCode >= ERROR_TABLE_BASE_RXK && errorCode < ERROR_TABLE_BASE_RXK + 256) {
613 reqp->tokenIdleErrorServp = serverp;
614 reqp->tokenError = errorCode;
617 } else if (errorCode == VICECONNBAD || errorCode == VICETOKENDEAD) {
618 cm_ForceNewConnections(serverp);
623 char * s = "unknown error";
624 switch ( errorCode ) {
625 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
626 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
627 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
628 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
629 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
630 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
631 case RXKADBADKEY : s = "RXKADBADKEY"; break;
632 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
633 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
634 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
635 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
636 case RXKADDATALEN : s = "RXKADDATALEN"; break;
637 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
638 case VSALVAGE : s = "VSALVAGE"; break;
639 case VNOVNODE : s = "VNOVNODE"; break;
640 case VNOVOL : s = "VNOVOL"; break;
641 case VVOLEXISTS : s = "VVOLEXISTS"; break;
642 case VNOSERVICE : s = "VNOSERVICE"; break;
643 case VOFFLINE : s = "VOFFLINE"; break;
644 case VONLINE : s = "VONLINE"; break;
645 case VDISKFULL : s = "VDISKFULL"; break;
646 case VOVERQUOTA : s = "VOVERQUOTA"; break;
647 case VBUSY : s = "VBUSY"; break;
648 case VMOVED : s = "VMOVED"; break;
649 case VIO : s = "VIO"; break;
650 case VRESTRICTED : s = "VRESTRICTED"; break;
651 case VRESTARTING : s = "VRESTARTING"; break;
652 case VREADONLY : s = "VREADONLY"; break;
653 case EAGAIN : s = "EAGAIN"; break;
654 case UAEAGAIN : s = "UAEAGAIN"; break;
655 case EINVAL : s = "EINVAL"; break;
656 case UAEINVAL : s = "UAEINVAL"; break;
657 case EACCES : s = "EACCES"; break;
658 case UAEACCES : s = "UAEACCES"; break;
659 case ENOENT : s = "ENOENT"; break;
660 case UAENOENT : s = "UAENOENT"; break;
661 case EEXIST : s = "EEXIST"; break;
662 case UAEEXIST : s = "UAEEXIST"; break;
663 case VICECONNBAD : s = "VICECONNBAD"; break;
664 case VICETOKENDEAD : s = "VICETOKENDEAD"; break;
665 case WSAEWOULDBLOCK : s = "WSAEWOULDBLOCK"; break;
666 case UAEWOULDBLOCK : s = "UAEWOULDBLOCK"; break;
667 case VL_IDEXIST : s = "VL_IDEXIST"; break;
668 case VL_IO : s = "VL_IO"; break;
669 case VL_NAMEEXIST : s = "VL_NAMEEXIST"; break;
670 case VL_CREATEFAIL : s = "VL_CREATEFAIL"; break;
671 case VL_NOENT : s = "VL_NOENT"; break;
672 case VL_EMPTY : s = "VL_EMPTY"; break;
673 case VL_ENTDELETED : s = "VL_ENTDELETED"; break;
674 case VL_BADNAME : s = "VL_BADNAME"; break;
675 case VL_BADINDEX : s = "VL_BADINDEX"; break;
676 case VL_BADVOLTYPE : s = "VL_BADVOLTYPE"; break;
677 case VL_BADSERVER : s = "VL_BADSERVER"; break;
678 case VL_BADPARTITION : s = "VL_BADPARTITION"; break;
679 case VL_REPSFULL : s = "VL_REPSFULL"; break;
680 case VL_NOREPSERVER : s = "VL_NOREPSERVER"; break;
681 case VL_DUPREPSERVER : s = "VL_DUPREPSERVER"; break;
682 case VL_RWNOTFOUND : s = "VL_RWNOTFOUND"; break;
683 case VL_BADREFCOUNT : s = "VL_BADREFCOUNT"; break;
684 case VL_SIZEEXCEEDED : s = "VL_SIZEEXCEEDED"; break;
685 case VL_BADENTRY : s = "VL_BADENTRY"; break;
686 case VL_BADVOLIDBUMP : s = "VL_BADVOLIDBUMP"; break;
687 case VL_IDALREADYHASHED: s = "VL_IDALREADYHASHED"; break;
688 case VL_ENTRYLOCKED : s = "VL_ENTRYLOCKED"; break;
689 case VL_BADVOLOPER : s = "VL_BADVOLOPER"; break;
690 case VL_BADRELLOCKTYPE : s = "VL_BADRELLOCKTYPE"; break;
691 case VL_RERELEASE : s = "VL_RERELEASE"; break;
692 case VL_BADSERVERFLAG : s = "VL_BADSERVERFLAG"; break;
693 case VL_PERM : s = "VL_PERM"; break;
694 case VL_NOMEM : s = "VL_NOMEM"; break;
695 case VL_BADVERSION : s = "VL_BADVERSION"; break;
696 case VL_INDEXERANGE : s = "VL_INDEXERANGE"; break;
697 case VL_MULTIPADDR : s = "VL_MULTIPADDR"; break;
698 case VL_BADMASK : s = "VL_BADMASK"; break;
699 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
700 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
701 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
702 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
703 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
704 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
705 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
706 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
707 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
708 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
709 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
710 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
711 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
712 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
713 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
714 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
715 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
716 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
717 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
718 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
719 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
720 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
721 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
722 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
723 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
724 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
725 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
726 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
727 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
728 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
729 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
730 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
731 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
732 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
733 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
734 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
735 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
736 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
737 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
738 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
739 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
740 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
741 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
742 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
743 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
744 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
745 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
746 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
747 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
748 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
749 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
751 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
757 /* If not allowed to retry, don't */
758 if (!forcing_new && (reqp->flags & CM_REQ_NORETRY))
760 else if (retry && dead_session)
764 /* drop this on the way out */
768 /* retry until we fail to find a connection */
772 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
773 cm_req_t *reqp, cm_conn_t **connpp)
776 cm_serverRef_t *tsrp;
779 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
780 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
781 long timeUsed, timeLeft, hardTimeLeft;
785 if (serversp == NULL) {
786 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_ALLDOWN);
787 return CM_ERROR_ALLDOWN;
790 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
791 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
793 /* leave 5 seconds margin of safety */
794 timeLeft = ConnDeadtimeout - timeUsed - 5;
795 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
798 lock_ObtainRead(&cm_serverLock);
799 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
801 if (reqp->tokenIdleErrorServp) {
803 * search the list until we find the server
804 * that failed last time. When we find it
805 * clear the error, skip it and try the one
808 if (tsp == reqp->tokenIdleErrorServp)
809 reqp->tokenIdleErrorServp = NULL;
813 cm_GetServerNoLock(tsp);
814 lock_ReleaseRead(&cm_serverLock);
815 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
817 if (tsrp->status == srv_deleted) {
818 /* skip this entry. no longer valid. */;
819 } else if (tsrp->status == srv_busy) {
822 } else if (tsrp->status == srv_offline) {
828 code = cm_ConnByServer(tsp, usersp, connpp);
829 if (code == 0) { /* cm_CBS only returns 0 */
831 #ifdef SET_RX_TIMEOUTS_TO_TIMELEFT
832 /* Set RPC timeout */
833 if (timeLeft > ConnDeadtimeout)
834 timeLeft = ConnDeadtimeout;
836 if (hardTimeLeft > HardDeadtimeout)
837 hardTimeLeft = HardDeadtimeout;
839 lock_ObtainMutex(&(*connpp)->mx);
840 rx_SetConnDeadTime((*connpp)->rxconnp, timeLeft);
841 rx_SetConnHardDeadTime((*connpp)->rxconnp, (u_short) hardTimeLeft);
842 lock_ReleaseMutex(&(*connpp)->mx);
847 /* therefore, this code is never executed */
852 lock_ObtainRead(&cm_serverLock);
853 cm_PutServerNoLock(tsp);
856 lock_ReleaseRead(&cm_serverLock);
858 if (firstError == 0) {
860 firstError = (reqp->tokenError ? reqp->tokenError :
861 (reqp->idleError ? RX_CALL_TIMEOUT : CM_ERROR_ALLDOWN));
863 firstError = CM_ERROR_ALLBUSY;
864 else if (allOffline || (someBusy && someOffline))
865 firstError = CM_ERROR_ALLOFFLINE;
867 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
868 firstError = CM_ERROR_TIMEDOUT;
872 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
876 /* called with a held server to GC all bad connections hanging off of the server */
877 void cm_GCConnections(cm_server_t *serverp)
883 lock_ObtainWrite(&cm_connLock);
884 lcpp = &serverp->connsp;
885 for (tcp = *lcpp; tcp; tcp = *lcpp) {
887 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
888 /* do the deletion of this guy */
889 cm_PutServer(tcp->serverp);
890 cm_ReleaseUser(userp);
892 rx_DestroyConnection(tcp->rxconnp);
893 lock_FinalizeMutex(&tcp->mx);
897 /* just advance to the next */
901 lock_ReleaseWrite(&cm_connLock);
904 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
905 cm_server_t *serverp)
910 struct rx_securityClass *secObjp;
912 if (serverp->type == CM_SERVER_VLDB) {
917 osi_assertx(serverp->type == CM_SERVER_FILE, "incorrect server type");
921 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
925 tcp->cryptlevel = rxkad_clear;
928 tcp->cryptlevel = rxkad_auth;
931 tcp->cryptlevel = rxkad_crypt;
933 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
934 &ucellp->sessionKey, ucellp->kvno,
935 ucellp->ticketLen, ucellp->ticketp);
939 tcp->cryptlevel = rxkad_clear;
940 secObjp = rxnull_NewClientSecurityObject();
942 osi_assertx(secObjp != NULL, "null rx_securityClass");
943 tcp->rxconnp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
948 rx_SetConnDeadTime(tcp->rxconnp, ConnDeadtimeout);
949 rx_SetConnHardDeadTime(tcp->rxconnp, HardDeadtimeout);
950 rx_SetConnIdleDeadTime(tcp->rxconnp, IdleDeadtimeout);
951 tcp->ucgen = ucellp->gen;
953 rxs_Release(secObjp); /* Decrement the initial refCount */
956 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
963 if (cm_anonvldb && serverp->type == CM_SERVER_VLDB)
964 userp = cm_rootUserp;
966 lock_ObtainMutex(&userp->mx);
967 lock_ObtainRead(&cm_connLock);
968 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
969 if (tcp->userp == userp)
973 /* find ucell structure */
974 ucellp = cm_GetUCell(userp, serverp->cellp);
976 lock_ConvertRToW(&cm_connLock);
977 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
978 if (tcp->userp == userp)
982 lock_ReleaseWrite(&cm_connLock);
985 cm_GetServer(serverp);
986 tcp = malloc(sizeof(*tcp));
987 memset(tcp, 0, sizeof(*tcp));
988 tcp->nextp = serverp->connsp;
989 serverp->connsp = tcp;
992 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex", LOCK_HIERARCHY_CONN);
993 lock_ObtainMutex(&tcp->mx);
994 tcp->serverp = serverp;
995 tcp->cryptlevel = rxkad_clear;
996 cm_NewRXConnection(tcp, ucellp, serverp);
998 lock_ReleaseMutex(&tcp->mx);
999 lock_ReleaseWrite(&cm_connLock);
1001 lock_ReleaseRead(&cm_connLock);
1003 InterlockedIncrement(&tcp->refCount);
1005 lock_ObtainMutex(&tcp->mx);
1006 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
1007 (tcp->ucgen < ucellp->gen) ||
1008 (tcp->cryptlevel != (ucellp->flags & CM_UCELLFLAG_RXKAD ? (cryptall == 1 ? rxkad_crypt : (cryptall == 2 ? rxkad_auth : rxkad_clear)) : rxkad_clear)))
1010 if (tcp->ucgen < ucellp->gen)
1011 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
1013 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
1014 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
1015 rx_DestroyConnection(tcp->rxconnp);
1016 cm_NewRXConnection(tcp, ucellp, serverp);
1018 lock_ReleaseMutex(&tcp->mx);
1020 lock_ReleaseMutex(&userp->mx);
1022 /* return this pointer to our caller */
1023 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
1029 long cm_ServerAvailable(struct cm_fid *fidp, struct cm_user *userp)
1033 cm_serverRef_t **serverspp;
1034 cm_serverRef_t *tsrp;
1036 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
1040 code = cm_GetServerList(fidp, userp, &req, &serverspp);
1044 lock_ObtainRead(&cm_serverLock);
1045 for (tsrp = *serverspp; tsrp; tsrp=tsrp->next) {
1047 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
1049 if (tsrp->status == srv_busy) {
1052 } else if (tsrp->status == srv_offline) {
1061 lock_ReleaseRead(&cm_serverLock);
1062 cm_FreeServerList(serverspp, 0);
1068 else if (allOffline || (someBusy && someOffline))
1075 * The returned cm_conn_t ** object is released in the subsequent call
1078 long cm_ConnFromFID(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
1082 cm_serverRef_t **serverspp;
1086 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
1091 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1092 cm_FreeServerList(serverspp, 0);
1097 long cm_ConnFromVolume(struct cm_volume *volp, unsigned long volid, struct cm_user *userp, cm_req_t *reqp,
1101 cm_serverRef_t **serverspp;
1105 serverspp = cm_GetVolServers(volp, volid);
1107 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
1108 cm_FreeServerList(serverspp, 0);
1113 extern struct rx_connection *
1114 cm_GetRxConn(cm_conn_t *connp)
1116 struct rx_connection * rxconnp;
1117 lock_ObtainMutex(&connp->mx);
1118 rxconnp = connp->rxconnp;
1119 rx_GetConnection(rxconnp);
1120 lock_ReleaseMutex(&connp->mx);
1124 void cm_ForceNewConnections(cm_server_t *serverp)
1128 lock_ObtainWrite(&cm_connLock);
1129 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
1130 lock_ObtainMutex(&tcp->mx);
1131 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
1132 lock_ReleaseMutex(&tcp->mx);
1134 lock_ReleaseWrite(&cm_connLock);