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>
22 #include <afs/unified_afs.h>
24 osi_rwlock_t cm_connLock;
26 long 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_int32 cryptall = 0;
35 void cm_PutConn(cm_conn_t *connp)
37 lock_ObtainWrite(&cm_connLock);
38 osi_assert(connp->refCount-- > 0);
39 lock_ReleaseWrite(&cm_connLock);
42 void cm_InitConn(void)
44 static osi_once_t once;
49 if (osi_Once(&once)) {
50 lock_InitializeRWLock(&cm_connLock, "connection global lock");
52 /* keisa - read timeout value for lanmanworkstation service.
54 * http://support.microsoft.com:80/support/kb/articles/Q102/0/67.asp&NoWebContent=1
55 * the SessTimeout is a minimum timeout not a maximum timeout. Therefore,
56 * I believe that the default should not be short. Instead, we should wait until
57 * RX times out before reporting a timeout to the SMB client.
59 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, LANMAN_WKS_PARAM_KEY,
60 0, KEY_QUERY_VALUE, &parmKey);
61 if (code == ERROR_SUCCESS)
63 DWORD dummyLen = sizeof(sessTimeout);
64 code = RegQueryValueEx(parmKey, LANMAN_WKS_SESSION_TIMEOUT, NULL, NULL,
65 (BYTE *) &sessTimeout, &dummyLen);
66 if (code == ERROR_SUCCESS)
68 afsi_log("lanmanworkstation : SessTimeout %d", sessTimeout);
69 RDRtimeout = sessTimeout;
70 if ( ConnDeadtimeout < RDRtimeout + 15 ) {
71 ConnDeadtimeout = RDRtimeout + 15;
72 afsi_log("ConnDeadTimeout increased to %d", ConnDeadtimeout);
74 if ( HardDeadtimeout < 2 * ConnDeadtimeout ) {
75 HardDeadtimeout = 2 * ConnDeadtimeout;
76 afsi_log("HardDeadTimeout increased to %d", HardDeadtimeout);
85 void cm_InitReq(cm_req_t *reqp)
87 memset((char *)reqp, 0, sizeof(cm_req_t));
89 reqp->startTime = GetTickCount();
91 gettimeofday(&reqp->startTime, NULL);
95 static long cm_GetServerList(struct cm_fid *fidp, struct cm_user *userp,
96 struct cm_req *reqp, cm_serverRef_t ***serversppp)
99 cm_volume_t *volp = NULL;
100 cm_cell_t *cellp = NULL;
107 cellp = cm_FindCellByID(fidp->cell);
108 if (!cellp) return CM_ERROR_NOSUCHCELL;
110 code = cm_GetVolumeByID(cellp, fidp->volume, userp, reqp, &volp);
111 if (code) return code;
113 *serversppp = cm_GetVolServers(volp, fidp->volume);
120 * Analyze the error return from an RPC. Determine whether or not to retry,
121 * and if we're going to retry, determine whether failover is appropriate,
122 * and whether timed backoff is appropriate.
124 * If the error code is from cm_Conn() or friends, it will be a CM_ERROR code.
125 * Otherwise it will be an RPC code. This may be a UNIX code (e.g. EDQUOT), or
126 * it may be an RX code, or it may be a special code (e.g. VNOVOL), or it may
127 * be a security code (e.g. RXKADEXPIRED).
129 * If the error code is from cm_Conn() or friends, connp will be NULL.
131 * For VLDB calls, fidp will be NULL.
133 * volSyncp and/or cbrp may also be NULL.
136 cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
138 AFSVolSync *volSyncp,
139 cm_serverRef_t * serversp,
140 cm_callbackRequest_t *cbrp, long errorCode)
142 cm_server_t *serverp = NULL;
143 cm_serverRef_t **serverspp = NULL;
144 cm_serverRef_t *tsrp;
145 cm_cell_t *cellp = NULL;
148 int free_svr_list = 0;
150 long timeUsed, timeLeft;
154 osi_Log2(afsd_logp, "cm_Analyze connp 0x%p, code 0x%x",
157 /* no locking required, since connp->serverp never changes after
159 dead_session = (userp->cellInfop == NULL);
161 serverp = connp->serverp;
163 /* Update callback pointer */
164 if (cbrp && serverp && errorCode == 0) {
166 if ( cbrp->serverp != serverp ) {
167 lock_ObtainWrite(&cm_serverLock);
168 cm_PutServerNoLock(cbrp->serverp);
169 cm_GetServerNoLock(serverp);
170 lock_ReleaseWrite(&cm_serverLock);
173 cm_GetServer(serverp);
175 lock_ObtainWrite(&cm_callbackLock);
176 cbrp->serverp = serverp;
177 lock_ReleaseWrite(&cm_callbackLock);
180 /* If not allowed to retry, don't */
181 if (reqp->flags & CM_REQ_NORETRY)
184 /* if timeout - check that it did not exceed the SMB timeout
187 /* timeleft - get if from reqp the same way as cmXonnByMServers does */
189 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
191 gettimeofday(&now, NULL);
192 timeUsed = sub_time(now, reqp->startTime) / 1000;
195 /* leave 5 seconds margin for sleep */
196 timeLeft = RDRtimeout - timeUsed;
198 if (errorCode == CM_ERROR_TIMEDOUT) {
201 if (cellp == NULL && serverp)
202 cellp = serverp->cellp;
203 if (cellp == NULL && serversp) {
204 struct cm_serverRef * refp;
205 for ( refp=serversp ; cellp == NULL && refp != NULL; refp=refp->next) {
207 cellp = refp->server->cellp;
210 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
215 /* if there is nosuchvolume, then we have a situation in which a
216 * previously known volume no longer has a set of servers
217 * associated with it. Either the volume has moved or
218 * the volume has been deleted. Try to find a new server list
219 * until the timeout period expires.
221 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
222 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
228 if (fidp != NULL) /* Not a VLDB call */
229 cm_ForceUpdateVolume(fidp, userp, reqp);
233 else if (errorCode == CM_ERROR_ALLDOWN) {
234 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
235 /* Servers marked DOWN will be restored by the background daemon
236 * thread as they become available.
240 else if (errorCode == CM_ERROR_ALLOFFLINE) {
242 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
245 if (fidp) { /* Not a VLDB call */
247 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
249 serversp = *serverspp;
254 lock_ObtainWrite(&cm_serverLock);
255 for (tsrp = serversp; tsrp; tsrp=tsrp->next)
256 tsrp->status = not_busy;
257 lock_ReleaseWrite(&cm_serverLock);
259 cm_FreeServerList(&serversp);
260 *serverspp = serversp;
265 cm_ForceUpdateVolume(fidp, userp, reqp);
266 } else { /* VLDB call */
268 lock_ObtainWrite(&cm_serverLock);
269 for (tsrp = serversp; tsrp; tsrp=tsrp->next)
270 tsrp->status = not_busy;
271 lock_ReleaseWrite(&cm_serverLock);
273 cm_FreeServerList(&serversp);
274 *serverspp = serversp;
281 /* if all servers are busy, mark them non-busy and start over */
282 else if (errorCode == CM_ERROR_ALLBUSY) {
283 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
287 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
289 serversp = *serverspp;
293 lock_ObtainWrite(&cm_serverLock);
294 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
295 if (tsrp->status == busy)
296 tsrp->status = not_busy;
298 lock_ReleaseWrite(&cm_serverLock);
300 cm_FreeServerList(&serversp);
301 *serverspp = serversp;
307 /* special codes: VBUSY and VRESTARTING */
308 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
310 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
312 serversp = *serverspp;
316 lock_ObtainWrite(&cm_serverLock);
317 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
318 if (tsrp->server == serverp
319 && tsrp->status == not_busy) {
324 lock_ReleaseWrite(&cm_serverLock);
326 cm_FreeServerList(&serversp);
327 *serverspp = serversp;
332 /* special codes: missing volumes */
333 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
334 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
341 switch ( errorCode ) {
344 msgID = MSG_SERVER_REPORTS_VNOVOL;
346 format = "Server %s reported volume %d as not attached.";
350 msgID = MSG_SERVER_REPORTS_VMOVED;
352 format = "Server %s reported volume %d as moved.";
356 msgID = MSG_SERVER_REPORTS_VOFFLINE;
358 format = "Server %s reported volume %d as offline.";
362 msgID = MSG_SERVER_REPORTS_VSALVAGE;
364 format = "Server %s reported volume %d as needs salvage.";
368 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
370 format = "Server %s reported volume %d as not in service.";
374 msgID = MSG_SERVER_REPORTS_VIO;
376 format = "Server %s reported volume %d as temporarily unaccessible.";
380 /* Log server being offline for this volume */
381 sprintf(addr, "%d.%d.%d.%d",
382 ((serverp->addr.sin_addr.s_addr & 0xff)),
383 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
384 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
385 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
387 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
389 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
392 /* Mark server offline for this volume */
394 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
396 serversp = *serverspp;
400 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
401 if (tsrp->server == serverp)
402 tsrp->status = offline;
405 cm_FreeServerList(&serversp);
406 *serverspp = serversp;
410 } else if ( errorCode == VNOVNODE ) {
413 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
414 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
416 scp = cm_FindSCache(fidp);
418 cm_scache_t *pscp = NULL;
420 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
421 pscp = cm_FindSCacheParent(scp);
423 lock_ObtainWrite(&cm_scacheLock);
424 cm_RecycleSCache(scp, CM_SCACHE_RECYCLEFLAG_DESTROY_BUFFERS);
425 lock_ReleaseWrite(&cm_scacheLock);
428 if (pscp->cbExpires > 0 && pscp->cbServerp != NULL) {
429 lock_ObtainMutex(&pscp->mx);
430 cm_DiscardSCache(pscp);
431 lock_ReleaseMutex(&pscp->mx);
433 cm_ReleaseSCache(pscp);
437 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
442 else if (errorCode == RX_CALL_TIMEOUT) {
443 /* server took longer than hardDeadTime
444 * don't mark server as down but don't retry
445 * this is to prevent the SMB session from timing out
446 * In addition, we log an event to the event log
449 /* Log server being offline for this volume */
450 sprintf(addr, "%d.%d.%d.%d",
451 ((serverp->addr.sin_addr.s_addr & 0xff)),
452 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
453 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
454 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
457 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
461 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime exceeded addr[%s]",
462 osi_LogSaveString(afsd_logp,addr));
464 else if (errorCode >= -64 && errorCode < 0) {
465 /* mark server as down */
466 lock_ObtainMutex(&serverp->mx);
467 serverp->flags |= CM_SERVERFLAG_DOWN;
468 lock_ReleaseMutex(&serverp->mx);
469 cm_ForceNewConnections(serverp);
473 else if (errorCode == RXKADEXPIRED ||
474 errorCode == RXKADBADTICKET) {
476 lock_ObtainMutex(&userp->mx);
477 ucellp = cm_GetUCell(userp, serverp->cellp);
478 if (ucellp->ticketp) {
479 free(ucellp->ticketp);
480 ucellp->ticketp = NULL;
482 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
484 lock_ReleaseMutex(&userp->mx);
490 char * s = "unknown error";
491 switch ( errorCode ) {
492 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
493 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
494 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
495 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
496 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
497 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
498 case RXKADBADKEY : s = "RXKADBADKEY"; break;
499 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
500 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
501 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
502 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
503 case RXKADDATALEN : s = "RXKADDATALEN"; break;
504 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
505 case VSALVAGE : s = "VSALVAGE"; break;
506 case VNOVNODE : s = "VNOVNODE"; break;
507 case VNOVOL : s = "VNOVOL"; break;
508 case VVOLEXISTS : s = "VVOLEXISTS"; break;
509 case VNOSERVICE : s = "VNOSERVICE"; break;
510 case VOFFLINE : s = "VOFFLINE"; break;
511 case VONLINE : s = "VONLINE"; break;
512 case VDISKFULL : s = "VDISKFULL"; break;
513 case VOVERQUOTA : s = "VOVERQUOTA"; break;
514 case VBUSY : s = "VBUSY"; break;
515 case VMOVED : s = "VMOVED"; break;
516 case VIO : s = "VIO"; break;
517 case VRESTRICTED : s = "VRESTRICTED"; break;
518 case VRESTARTING : s = "VRESTARTING"; break;
519 case VREADONLY : s = "VREADONLY"; break;
520 case EAGAIN : s = "EAGAIN"; break;
521 case UAEAGAIN : s = "UAEAGAIN"; break;
522 case EINVAL : s = "EINVAL"; break;
523 case UAEINVAL : s = "UAEINVAL"; break;
524 case EACCES : s = "EACCES"; break;
525 case UAEACCES : s = "UAEACCES"; break;
526 case ENOENT : s = "ENOENT"; break;
527 case UAENOENT : s = "UAENOENT"; break;
528 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
529 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
530 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
531 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
532 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
533 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
534 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
535 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
536 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
537 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
538 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
539 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
540 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
541 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
542 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
543 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
544 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
545 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
546 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
547 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
548 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
549 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
550 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
551 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
552 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
553 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
554 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
555 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
556 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
557 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
558 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
559 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
560 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
561 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
562 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
563 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
564 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
565 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
566 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
567 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
568 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
569 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
570 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
571 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
572 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
573 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
574 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
575 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
576 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
577 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
578 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
580 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
586 if (retry && dead_session)
590 /* drop this on the way out */
594 /* retry until we fail to find a connection */
598 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
599 cm_req_t *reqp, cm_conn_t **connpp)
602 cm_serverRef_t *tsrp;
605 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
606 long timeUsed, timeLeft, hardTimeLeft;
611 if (serversp == NULL) {
612 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_NOSUCHVOLUME);
613 return CM_ERROR_NOSUCHVOLUME;
619 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
621 gettimeofday(&now, NULL);
622 timeUsed = sub_time(now, reqp->startTime) / 1000;
625 /* leave 5 seconds margin of safety */
626 timeLeft = ConnDeadtimeout - timeUsed - 5;
627 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
629 lock_ObtainWrite(&cm_serverLock);
630 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
632 cm_GetServerNoLock(tsp);
633 lock_ReleaseWrite(&cm_serverLock);
634 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
636 if (tsrp->status == busy) {
639 } else if (tsrp->status == offline) {
645 code = cm_ConnByServer(tsp, usersp, connpp);
646 if (code == 0) { /* cm_CBS only returns 0 */
648 /* Set RPC timeout */
649 if (timeLeft > ConnDeadtimeout)
650 timeLeft = ConnDeadtimeout;
652 if (hardTimeLeft > HardDeadtimeout)
653 hardTimeLeft = HardDeadtimeout;
655 lock_ObtainMutex(&(*connpp)->mx);
656 rx_SetConnDeadTime((*connpp)->callp, timeLeft);
657 rx_SetConnHardDeadTime((*connpp)->callp, (u_short) hardTimeLeft);
658 lock_ReleaseMutex(&(*connpp)->mx);
662 /* therefore, this code is never executed */
667 lock_ObtainWrite(&cm_serverLock);
668 cm_PutServerNoLock(tsp);
670 lock_ReleaseWrite(&cm_serverLock);
672 if (firstError == 0) {
674 firstError = CM_ERROR_ALLDOWN;
676 firstError = CM_ERROR_ALLBUSY;
677 else if (allOffline || (someBusy && someOffline))
678 firstError = CM_ERROR_ALLOFFLINE;
680 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
681 firstError = CM_ERROR_TIMEDOUT;
685 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
689 /* called with a held server to GC all bad connections hanging off of the server */
690 void cm_GCConnections(cm_server_t *serverp)
696 lock_ObtainWrite(&cm_connLock);
697 lcpp = &serverp->connsp;
698 for (tcp = *lcpp; tcp; tcp = *lcpp) {
700 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
701 /* do the deletion of this guy */
702 cm_PutServer(tcp->serverp);
703 cm_ReleaseUser(userp);
705 rx_DestroyConnection(tcp->callp);
706 lock_FinalizeMutex(&tcp->mx);
710 /* just advance to the next */
714 lock_ReleaseWrite(&cm_connLock);
717 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
718 cm_server_t *serverp)
723 struct rx_securityClass *secObjp;
725 if (serverp->type == CM_SERVER_VLDB) {
730 osi_assert(serverp->type == CM_SERVER_FILE);
734 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
737 tcp->cryptlevel = rxkad_crypt;
739 tcp->cryptlevel = rxkad_clear;
741 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
742 &ucellp->sessionKey, ucellp->kvno,
743 ucellp->ticketLen, ucellp->ticketp);
747 tcp->cryptlevel = rxkad_clear;
748 secObjp = rxnull_NewClientSecurityObject();
750 osi_assert(secObjp != NULL);
751 tcp->callp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
756 rx_SetConnDeadTime(tcp->callp, ConnDeadtimeout);
757 rx_SetConnHardDeadTime(tcp->callp, HardDeadtimeout);
758 tcp->ucgen = ucellp->gen;
760 rxs_Release(secObjp); /* Decrement the initial refCount */
763 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
768 lock_ObtainMutex(&userp->mx);
769 lock_ObtainWrite(&cm_connLock);
770 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
771 if (tcp->userp == userp)
775 /* find ucell structure */
776 ucellp = cm_GetUCell(userp, serverp->cellp);
778 cm_GetServer(serverp);
779 tcp = malloc(sizeof(*tcp));
780 memset(tcp, 0, sizeof(*tcp));
781 tcp->nextp = serverp->connsp;
782 serverp->connsp = tcp;
785 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex");
786 lock_ObtainMutex(&tcp->mx);
787 tcp->serverp = serverp;
788 tcp->cryptlevel = rxkad_clear;
789 cm_NewRXConnection(tcp, ucellp, serverp);
791 lock_ReleaseMutex(&tcp->mx);
793 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
794 (tcp->ucgen < ucellp->gen) ||
795 (tcp->cryptlevel != (cryptall ? (ucellp->flags & CM_UCELLFLAG_RXKAD ? rxkad_crypt : rxkad_clear) : rxkad_clear)))
797 if (tcp->ucgen < ucellp->gen)
798 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
800 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
801 lock_ObtainMutex(&tcp->mx);
802 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
803 rx_DestroyConnection(tcp->callp);
804 cm_NewRXConnection(tcp, ucellp, serverp);
805 lock_ReleaseMutex(&tcp->mx);
809 lock_ReleaseWrite(&cm_connLock);
810 lock_ReleaseMutex(&userp->mx);
812 /* return this pointer to our caller */
813 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
819 long cm_Conn(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
824 cm_serverRef_t **serverspp;
826 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
832 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
833 cm_FreeServerList(serverspp);
837 extern struct rx_connection *
838 cm_GetRxConn(cm_conn_t *connp)
840 struct rx_connection * rxconn;
841 lock_ObtainMutex(&connp->mx);
842 rxconn = connp->callp;
843 rx_GetConnection(rxconn);
844 lock_ReleaseMutex(&connp->mx);
848 void cm_ForceNewConnections(cm_server_t *serverp)
852 lock_ObtainWrite(&cm_connLock);
853 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
854 lock_ObtainMutex(&tcp->mx);
855 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
856 lock_ReleaseMutex(&tcp->mx);
858 lock_ReleaseWrite(&cm_connLock);