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 <WINNT/afsreg.h>
23 osi_rwlock_t cm_connLock;
25 long RDRtimeout = CM_CONN_DEFAULTRDRTIMEOUT;
26 unsigned short ConnDeadtimeout = CM_CONN_CONNDEADTIME;
27 unsigned short HardDeadtimeout = CM_CONN_HARDDEADTIME;
29 #define LANMAN_WKS_PARAM_KEY "SYSTEM\\CurrentControlSet\\Services\\lanmanworkstation\\parameters"
30 #define LANMAN_WKS_SESSION_TIMEOUT "SessTimeout"
32 afs_int32 cryptall = 0;
34 void cm_PutConn(cm_conn_t *connp)
36 lock_ObtainWrite(&cm_connLock);
37 osi_assert(connp->refCount-- > 0);
38 lock_ReleaseWrite(&cm_connLock);
41 void cm_InitConn(void)
43 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 dummyLen = sizeof(DWORD);
64 code = RegQueryValueEx(parmKey, LANMAN_WKS_SESSION_TIMEOUT, NULL, NULL,
65 (BYTE *) &dwValue, &dummyLen);
66 if (code == ERROR_SUCCESS)
71 code = RegOpenKeyEx(HKEY_LOCAL_MACHINE, AFSREG_CLT_SVC_PARAM_SUBKEY,
72 0, KEY_QUERY_VALUE, &parmKey);
73 if (code == ERROR_SUCCESS) {
74 dummyLen = sizeof(DWORD);
75 code = RegQueryValueEx(parmKey, "ConnDeadTimeout", NULL, NULL,
76 (BYTE *) &dwValue, &dummyLen);
77 if (code == ERROR_SUCCESS)
78 ConnDeadtimeout = dwValue;
80 dummyLen = sizeof(DWORD);
81 code = RegQueryValueEx(parmKey, "HardDeadTimeout", NULL, NULL,
82 (BYTE *) &dwValue, &dummyLen);
83 if (code == ERROR_SUCCESS)
84 HardDeadtimeout = dwValue;
85 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
89 afsi_log("lanmanworkstation : SessTimeout %d", RDRtimeout);
90 if (ConnDeadtimeout == 0)
91 ConnDeadtimeout = RDRtimeout / 2;
92 afsi_log("ConnDeadTimeout is %d", ConnDeadtimeout);
93 if (HardDeadtimeout == 0)
94 HardDeadtimeout = RDRtimeout;
95 afsi_log("HardDeadTimeout is %d", HardDeadtimeout);
101 void cm_InitReq(cm_req_t *reqp)
103 memset((char *)reqp, 0, sizeof(cm_req_t));
104 reqp->startTime = GetTickCount();
107 static long cm_GetServerList(struct cm_fid *fidp, struct cm_user *userp,
108 struct cm_req *reqp, cm_serverRef_t ***serversppp)
111 cm_volume_t *volp = NULL;
112 cm_cell_t *cellp = NULL;
119 cellp = cm_FindCellByID(fidp->cell);
120 if (!cellp) return CM_ERROR_NOSUCHCELL;
122 code = cm_GetVolumeByID(cellp, fidp->volume, userp, reqp, &volp);
123 if (code) return code;
125 *serversppp = cm_GetVolServers(volp, fidp->volume);
132 * Analyze the error return from an RPC. Determine whether or not to retry,
133 * and if we're going to retry, determine whether failover is appropriate,
134 * and whether timed backoff is appropriate.
136 * If the error code is from cm_Conn() or friends, it will be a CM_ERROR code.
137 * Otherwise it will be an RPC code. This may be a UNIX code (e.g. EDQUOT), or
138 * it may be an RX code, or it may be a special code (e.g. VNOVOL), or it may
139 * be a security code (e.g. RXKADEXPIRED).
141 * If the error code is from cm_Conn() or friends, connp will be NULL.
143 * For VLDB calls, fidp will be NULL.
145 * volSyncp and/or cbrp may also be NULL.
148 cm_Analyze(cm_conn_t *connp, cm_user_t *userp, cm_req_t *reqp,
150 AFSVolSync *volSyncp,
151 cm_serverRef_t * serversp,
152 cm_callbackRequest_t *cbrp, long errorCode)
154 cm_server_t *serverp = NULL;
155 cm_serverRef_t **serverspp = NULL;
156 cm_serverRef_t *tsrp;
157 cm_cell_t *cellp = NULL;
160 int free_svr_list = 0;
162 long timeUsed, timeLeft;
166 osi_Log2(afsd_logp, "cm_Analyze connp 0x%p, code 0x%x",
169 /* no locking required, since connp->serverp never changes after
171 dead_session = (userp->cellInfop == NULL);
173 serverp = connp->serverp;
175 /* Update callback pointer */
176 if (cbrp && serverp && errorCode == 0) {
178 if ( cbrp->serverp != serverp ) {
179 lock_ObtainWrite(&cm_serverLock);
180 cm_PutServerNoLock(cbrp->serverp);
181 cm_GetServerNoLock(serverp);
182 lock_ReleaseWrite(&cm_serverLock);
185 cm_GetServer(serverp);
187 lock_ObtainWrite(&cm_callbackLock);
188 cbrp->serverp = serverp;
189 lock_ReleaseWrite(&cm_callbackLock);
192 /* If not allowed to retry, don't */
193 if (reqp->flags & CM_REQ_NORETRY)
196 /* if timeout - check that it did not exceed the HardDead timeout
199 /* timeleft - get if from reqp the same way as cmXonnByMServers does */
200 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
202 /* leave 5 seconds margin for sleep */
203 timeLeft = HardDeadtimeout - timeUsed;
205 if (errorCode == CM_ERROR_TIMEDOUT) {
208 if (cellp == NULL && serverp)
209 cellp = serverp->cellp;
210 if (cellp == NULL && serversp) {
211 struct cm_serverRef * refp;
212 for ( refp=serversp ; cellp == NULL && refp != NULL; refp=refp->next) {
214 cellp = refp->server->cellp;
217 cm_CheckServers(CM_FLAG_CHECKDOWNSERVERS, cellp);
222 /* if there is nosuchvolume, then we have a situation in which a
223 * previously known volume no longer has a set of servers
224 * associated with it. Either the volume has moved or
225 * the volume has been deleted. Try to find a new server list
226 * until the timeout period expires.
228 else if (errorCode == CM_ERROR_NOSUCHVOLUME) {
229 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_NOSUCHVOLUME.");
235 if (fidp != NULL) /* Not a VLDB call */
236 cm_ForceUpdateVolume(fidp, userp, reqp);
240 else if (errorCode == CM_ERROR_ALLDOWN) {
241 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLDOWN.");
242 /* Servers marked DOWN will be restored by the background daemon
243 * thread as they become available.
247 else if (errorCode == CM_ERROR_ALLOFFLINE) {
249 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLOFFLINE.");
252 if (fidp) { /* Not a VLDB call */
254 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
256 serversp = *serverspp;
261 lock_ObtainWrite(&cm_serverLock);
262 for (tsrp = serversp; tsrp; tsrp=tsrp->next)
263 tsrp->status = not_busy;
264 lock_ReleaseWrite(&cm_serverLock);
266 cm_FreeServerList(&serversp);
267 *serverspp = serversp;
272 cm_ForceUpdateVolume(fidp, userp, reqp);
273 } else { /* VLDB call */
275 lock_ObtainWrite(&cm_serverLock);
276 for (tsrp = serversp; tsrp; tsrp=tsrp->next)
277 tsrp->status = not_busy;
278 lock_ReleaseWrite(&cm_serverLock);
280 cm_FreeServerList(&serversp);
281 *serverspp = serversp;
288 /* if all servers are busy, mark them non-busy and start over */
289 else if (errorCode == CM_ERROR_ALLBUSY) {
290 osi_Log0(afsd_logp, "cm_Analyze passed CM_ERROR_ALLBUSY.");
294 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
296 serversp = *serverspp;
300 lock_ObtainWrite(&cm_serverLock);
301 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
302 if (tsrp->status == busy)
303 tsrp->status = not_busy;
305 lock_ReleaseWrite(&cm_serverLock);
307 cm_FreeServerList(&serversp);
308 *serverspp = serversp;
314 /* special codes: VBUSY and VRESTARTING */
315 else if (errorCode == VBUSY || errorCode == VRESTARTING) {
317 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
319 serversp = *serverspp;
323 lock_ObtainWrite(&cm_serverLock);
324 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
325 if (tsrp->server == serverp
326 && tsrp->status == not_busy) {
331 lock_ReleaseWrite(&cm_serverLock);
333 cm_FreeServerList(&serversp);
334 *serverspp = serversp;
339 /* special codes: missing volumes */
340 else if (errorCode == VNOVOL || errorCode == VMOVED || errorCode == VOFFLINE ||
341 errorCode == VSALVAGE || errorCode == VNOSERVICE || errorCode == VIO)
346 switch ( errorCode ) {
348 msgID = MSG_SERVER_REPORTS_VNOVOL;
349 format = "Server %s reported volume %d as not attached.";
352 msgID = MSG_SERVER_REPORTS_VMOVED;
353 format = "Server %s reported volume %d as moved.";
356 msgID = MSG_SERVER_REPORTS_VOFFLINE;
357 format = "Server %s reported volume %d as offline.";
360 msgID = MSG_SERVER_REPORTS_VSALVAGE;
361 format = "Server %s reported volume %d as needs salvage.";
364 msgID = MSG_SERVER_REPORTS_VNOSERVICE;
365 format = "Server %s reported volume %d as not in service.";
368 msgID = MSG_SERVER_REPORTS_VIO;
369 format = "Server %s reported volume %d as temporarily unaccessible.";
373 /* Log server being offline for this volume */
374 sprintf(addr, "%d.%d.%d.%d",
375 ((serverp->addr.sin_addr.s_addr & 0xff)),
376 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
377 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
378 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
380 osi_Log2(afsd_logp, format, osi_LogSaveString(afsd_logp,addr), fidp->volume);
381 LogEvent(EVENTLOG_WARNING_TYPE, msgID, addr, fidp->volume);
383 /* Mark server offline for this volume */
385 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
387 serversp = *serverspp;
391 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
392 if (tsrp->server == serverp)
393 tsrp->status = offline;
396 cm_FreeServerList(&serversp);
397 *serverspp = serversp;
401 } else if ( errorCode == VNOVNODE ) {
404 osi_Log4(afsd_logp, "cm_Analyze passed VNOVNODE cell %u vol %u vn %u uniq %u.",
405 fidp->cell, fidp->volume, fidp->vnode, fidp->unique);
407 scp = cm_FindSCache(fidp);
409 cm_scache_t *pscp = NULL;
411 if (scp->fileType != CM_SCACHETYPE_DIRECTORY)
412 pscp = cm_FindSCacheParent(scp);
414 lock_ObtainWrite(&cm_scacheLock);
415 cm_RecycleSCache(scp, CM_SCACHE_RECYCLEFLAG_DESTROY_BUFFERS);
416 cm_ReleaseSCacheNoLock(scp);
417 lock_ReleaseWrite(&cm_scacheLock);
420 if (pscp->cbExpires > 0 && pscp->cbServerp != NULL) {
421 lock_ObtainMutex(&pscp->mx);
422 cm_DiscardSCache(pscp);
423 lock_ReleaseMutex(&pscp->mx);
425 cm_ReleaseSCache(pscp);
429 osi_Log0(afsd_logp, "cm_Analyze passed VNOVNODE unknown fid.");
434 else if (errorCode == RX_CALL_TIMEOUT) {
435 /* server took longer than hardDeadTime
436 * don't mark server as down but don't retry
437 * this is to prevent the SMB session from timing out
438 * In addition, we log an event to the event log
441 /* Log server being offline for this volume */
442 sprintf(addr, "%d.%d.%d.%d",
443 ((serverp->addr.sin_addr.s_addr & 0xff)),
444 ((serverp->addr.sin_addr.s_addr & 0xff00)>> 8),
445 ((serverp->addr.sin_addr.s_addr & 0xff0000)>> 16),
446 ((serverp->addr.sin_addr.s_addr & 0xff000000)>> 24));
448 LogEvent(EVENTLOG_WARNING_TYPE, MSG_RX_HARD_DEAD_TIME_EXCEEDED, addr);
451 osi_Log1(afsd_logp, "cm_Analyze: hardDeadTime exceeded addr[%s]",
452 osi_LogSaveString(afsd_logp,addr));
454 else if (errorCode >= -64 && errorCode < 0) {
455 /* mark server as down */
456 lock_ObtainMutex(&serverp->mx);
457 serverp->flags |= CM_SERVERFLAG_DOWN;
458 lock_ReleaseMutex(&serverp->mx);
459 cm_ForceNewConnections(serverp);
463 else if (errorCode == RXKADEXPIRED ||
464 errorCode == RXKADBADTICKET) {
466 lock_ObtainMutex(&userp->mx);
467 ucellp = cm_GetUCell(userp, serverp->cellp);
468 if (ucellp->ticketp) {
469 free(ucellp->ticketp);
470 ucellp->ticketp = NULL;
472 ucellp->flags &= ~CM_UCELLFLAG_RXKAD;
474 lock_ReleaseMutex(&userp->mx);
480 char * s = "unknown error";
481 switch ( errorCode ) {
482 case RXKADINCONSISTENCY: s = "RXKADINCONSISTENCY"; break;
483 case RXKADPACKETSHORT : s = "RXKADPACKETSHORT"; break;
484 case RXKADLEVELFAIL : s = "RXKADLEVELFAIL"; break;
485 case RXKADTICKETLEN : s = "RXKADTICKETLEN"; break;
486 case RXKADOUTOFSEQUENCE: s = "RXKADOUTOFSEQUENCE"; break;
487 case RXKADNOAUTH : s = "RXKADNOAUTH"; break;
488 case RXKADBADKEY : s = "RXKADBADKEY"; break;
489 case RXKADBADTICKET : s = "RXKADBADTICKET"; break;
490 case RXKADUNKNOWNKEY : s = "RXKADUNKNOWNKEY"; break;
491 case RXKADEXPIRED : s = "RXKADEXPIRED"; break;
492 case RXKADSEALEDINCON : s = "RXKADSEALEDINCON"; break;
493 case RXKADDATALEN : s = "RXKADDATALEN"; break;
494 case RXKADILLEGALLEVEL : s = "RXKADILLEGALLEVEL"; break;
495 case VSALVAGE : s = "VSALVAGE"; break;
496 case VNOVNODE : s = "VNOVNODE"; break;
497 case VNOVOL : s = "VNOVOL"; break;
498 case VVOLEXISTS : s = "VVOLEXISTS"; break;
499 case VNOSERVICE : s = "VNOSERVICE"; break;
500 case VOFFLINE : s = "VOFFLINE"; break;
501 case VONLINE : s = "VONLINE"; break;
502 case VDISKFULL : s = "VDISKFULL"; break;
503 case VOVERQUOTA : s = "VOVERQUOTA"; break;
504 case VBUSY : s = "VBUSY"; break;
505 case VMOVED : s = "VMOVED"; break;
506 case VIO : s = "VIO"; break;
507 case VRESTRICTED : s = "VRESTRICTED"; break;
508 case VRESTARTING : s = "VRESTARTING"; break;
509 case VREADONLY : s = "VREADONLY"; break;
510 case EAGAIN : s = "EAGAIN"; break;
511 case UAEAGAIN : s = "UAEAGAIN"; break;
512 case EINVAL : s = "EINVAL"; break;
513 case UAEINVAL : s = "UAEINVAL"; break;
514 case EACCES : s = "EACCES"; break;
515 case UAEACCES : s = "UAEACCES"; break;
516 case ENOENT : s = "ENOENT"; break;
517 case UAENOENT : s = "UAENOENT"; break;
518 case CM_ERROR_NOSUCHCELL : s = "CM_ERROR_NOSUCHCELL"; break;
519 case CM_ERROR_NOSUCHVOLUME : s = "CM_ERROR_NOSUCHVOLUME"; break;
520 case CM_ERROR_TIMEDOUT : s = "CM_ERROR_TIMEDOUT"; break;
521 case CM_ERROR_RETRY : s = "CM_ERROR_RETRY"; break;
522 case CM_ERROR_NOACCESS : s = "CM_ERROR_NOACCESS"; break;
523 case CM_ERROR_NOSUCHFILE : s = "CM_ERROR_NOSUCHFILE"; break;
524 case CM_ERROR_STOPNOW : s = "CM_ERROR_STOPNOW"; break;
525 case CM_ERROR_TOOBIG : s = "CM_ERROR_TOOBIG"; break;
526 case CM_ERROR_INVAL : s = "CM_ERROR_INVAL"; break;
527 case CM_ERROR_BADFD : s = "CM_ERROR_BADFD"; break;
528 case CM_ERROR_BADFDOP : s = "CM_ERROR_BADFDOP"; break;
529 case CM_ERROR_EXISTS : s = "CM_ERROR_EXISTS"; break;
530 case CM_ERROR_CROSSDEVLINK : s = "CM_ERROR_CROSSDEVLINK"; break;
531 case CM_ERROR_BADOP : s = "CM_ERROR_BADOP"; break;
532 case CM_ERROR_BADPASSWORD : s = "CM_ERROR_BADPASSWORD"; break;
533 case CM_ERROR_NOTDIR : s = "CM_ERROR_NOTDIR"; break;
534 case CM_ERROR_ISDIR : s = "CM_ERROR_ISDIR"; break;
535 case CM_ERROR_READONLY : s = "CM_ERROR_READONLY"; break;
536 case CM_ERROR_WOULDBLOCK : s = "CM_ERROR_WOULDBLOCK"; break;
537 case CM_ERROR_QUOTA : s = "CM_ERROR_QUOTA"; break;
538 case CM_ERROR_SPACE : s = "CM_ERROR_SPACE"; break;
539 case CM_ERROR_BADSHARENAME : s = "CM_ERROR_BADSHARENAME"; break;
540 case CM_ERROR_BADTID : s = "CM_ERROR_BADTID"; break;
541 case CM_ERROR_UNKNOWN : s = "CM_ERROR_UNKNOWN"; break;
542 case CM_ERROR_NOMORETOKENS : s = "CM_ERROR_NOMORETOKENS"; break;
543 case CM_ERROR_NOTEMPTY : s = "CM_ERROR_NOTEMPTY"; break;
544 case CM_ERROR_USESTD : s = "CM_ERROR_USESTD"; break;
545 case CM_ERROR_REMOTECONN : s = "CM_ERROR_REMOTECONN"; break;
546 case CM_ERROR_ATSYS : s = "CM_ERROR_ATSYS"; break;
547 case CM_ERROR_NOSUCHPATH : s = "CM_ERROR_NOSUCHPATH"; break;
548 case CM_ERROR_CLOCKSKEW : s = "CM_ERROR_CLOCKSKEW"; break;
549 case CM_ERROR_BADSMB : s = "CM_ERROR_BADSMB"; break;
550 case CM_ERROR_ALLBUSY : s = "CM_ERROR_ALLBUSY"; break;
551 case CM_ERROR_NOFILES : s = "CM_ERROR_NOFILES"; break;
552 case CM_ERROR_PARTIALWRITE : s = "CM_ERROR_PARTIALWRITE"; break;
553 case CM_ERROR_NOIPC : s = "CM_ERROR_NOIPC"; break;
554 case CM_ERROR_BADNTFILENAME : s = "CM_ERROR_BADNTFILENAME"; break;
555 case CM_ERROR_BUFFERTOOSMALL : s = "CM_ERROR_BUFFERTOOSMALL"; break;
556 case CM_ERROR_RENAME_IDENTICAL : s = "CM_ERROR_RENAME_IDENTICAL"; break;
557 case CM_ERROR_ALLOFFLINE : s = "CM_ERROR_ALLOFFLINE"; break;
558 case CM_ERROR_AMBIGUOUS_FILENAME: s = "CM_ERROR_AMBIGUOUS_FILENAME"; break;
559 case CM_ERROR_BADLOGONTYPE : s = "CM_ERROR_BADLOGONTYPE"; break;
560 case CM_ERROR_GSSCONTINUE : s = "CM_ERROR_GSSCONTINUE"; break;
561 case CM_ERROR_TIDIPC : s = "CM_ERROR_TIDIPC"; break;
562 case CM_ERROR_TOO_MANY_SYMLINKS : s = "CM_ERROR_TOO_MANY_SYMLINKS"; break;
563 case CM_ERROR_PATH_NOT_COVERED : s = "CM_ERROR_PATH_NOT_COVERED"; break;
564 case CM_ERROR_LOCK_CONFLICT : s = "CM_ERROR_LOCK_CONFLICT"; break;
565 case CM_ERROR_SHARING_VIOLATION : s = "CM_ERROR_SHARING_VIOLATION"; break;
566 case CM_ERROR_ALLDOWN : s = "CM_ERROR_ALLDOWN"; break;
567 case CM_ERROR_TOOFEWBUFS : s = "CM_ERROR_TOOFEWBUFS"; break;
568 case CM_ERROR_TOOMANYBUFS : s = "CM_ERROR_TOOMANYBUFS"; break;
570 osi_Log2(afsd_logp, "cm_Analyze: ignoring error code 0x%x (%s)",
576 if (retry && dead_session)
580 /* drop this on the way out */
584 /* retry until we fail to find a connection */
588 long cm_ConnByMServers(cm_serverRef_t *serversp, cm_user_t *usersp,
589 cm_req_t *reqp, cm_conn_t **connpp)
592 cm_serverRef_t *tsrp;
595 int someBusy = 0, someOffline = 0, allOffline = 1, allBusy = 1, allDown = 1;
596 long timeUsed, timeLeft, hardTimeLeft;
598 if (serversp == NULL) {
599 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", CM_ERROR_NOSUCHVOLUME);
600 return CM_ERROR_NOSUCHVOLUME;
605 timeUsed = (GetTickCount() - reqp->startTime) / 1000;
607 /* leave 5 seconds margin of safety */
608 timeLeft = ConnDeadtimeout - timeUsed - 5;
609 hardTimeLeft = HardDeadtimeout - timeUsed - 5;
611 lock_ObtainWrite(&cm_serverLock);
612 for (tsrp = serversp; tsrp; tsrp=tsrp->next) {
614 cm_GetServerNoLock(tsp);
615 lock_ReleaseWrite(&cm_serverLock);
616 if (!(tsp->flags & CM_SERVERFLAG_DOWN)) {
618 if (tsrp->status == busy) {
621 } else if (tsrp->status == offline) {
627 code = cm_ConnByServer(tsp, usersp, connpp);
628 if (code == 0) { /* cm_CBS only returns 0 */
630 /* Set RPC timeout */
631 if (timeLeft > ConnDeadtimeout)
632 timeLeft = ConnDeadtimeout;
634 if (hardTimeLeft > HardDeadtimeout)
635 hardTimeLeft = HardDeadtimeout;
637 lock_ObtainMutex(&(*connpp)->mx);
638 rx_SetConnDeadTime((*connpp)->callp, timeLeft);
639 rx_SetConnHardDeadTime((*connpp)->callp, (u_short) hardTimeLeft);
640 lock_ReleaseMutex(&(*connpp)->mx);
644 /* therefore, this code is never executed */
649 lock_ObtainWrite(&cm_serverLock);
650 cm_PutServerNoLock(tsp);
652 lock_ReleaseWrite(&cm_serverLock);
654 if (firstError == 0) {
656 firstError = CM_ERROR_ALLDOWN;
658 firstError = CM_ERROR_ALLBUSY;
659 else if (allOffline || (someBusy && someOffline))
660 firstError = CM_ERROR_ALLOFFLINE;
662 osi_Log0(afsd_logp, "cm_ConnByMServers returning impossible error TIMEDOUT");
663 firstError = CM_ERROR_TIMEDOUT;
667 osi_Log1(afsd_logp, "cm_ConnByMServers returning 0x%x", firstError);
671 /* called with a held server to GC all bad connections hanging off of the server */
672 void cm_GCConnections(cm_server_t *serverp)
678 lock_ObtainWrite(&cm_connLock);
679 lcpp = &serverp->connsp;
680 for (tcp = *lcpp; tcp; tcp = *lcpp) {
682 if (userp && tcp->refCount == 0 && (userp->vcRefs == 0)) {
683 /* do the deletion of this guy */
684 cm_PutServer(tcp->serverp);
685 cm_ReleaseUser(userp);
687 rx_DestroyConnection(tcp->callp);
688 lock_FinalizeMutex(&tcp->mx);
692 /* just advance to the next */
696 lock_ReleaseWrite(&cm_connLock);
699 static void cm_NewRXConnection(cm_conn_t *tcp, cm_ucell_t *ucellp,
700 cm_server_t *serverp)
705 struct rx_securityClass *secObjp;
707 if (serverp->type == CM_SERVER_VLDB) {
712 osi_assert(serverp->type == CM_SERVER_FILE);
716 if (ucellp->flags & CM_UCELLFLAG_RXKAD) {
719 tcp->cryptlevel = rxkad_crypt;
721 tcp->cryptlevel = rxkad_clear;
723 secObjp = rxkad_NewClientSecurityObject(tcp->cryptlevel,
724 &ucellp->sessionKey, ucellp->kvno,
725 ucellp->ticketLen, ucellp->ticketp);
729 tcp->cryptlevel = rxkad_clear;
730 secObjp = rxnull_NewClientSecurityObject();
732 osi_assert(secObjp != NULL);
733 tcp->callp = rx_NewConnection(serverp->addr.sin_addr.s_addr,
738 rx_SetConnDeadTime(tcp->callp, ConnDeadtimeout);
739 rx_SetConnHardDeadTime(tcp->callp, HardDeadtimeout);
740 tcp->ucgen = ucellp->gen;
742 rxs_Release(secObjp); /* Decrement the initial refCount */
745 long cm_ConnByServer(cm_server_t *serverp, cm_user_t *userp, cm_conn_t **connpp)
750 lock_ObtainMutex(&userp->mx);
751 lock_ObtainWrite(&cm_connLock);
752 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
753 if (tcp->userp == userp)
757 /* find ucell structure */
758 ucellp = cm_GetUCell(userp, serverp->cellp);
760 cm_GetServer(serverp);
761 tcp = malloc(sizeof(*tcp));
762 memset(tcp, 0, sizeof(*tcp));
763 tcp->nextp = serverp->connsp;
764 serverp->connsp = tcp;
767 lock_InitializeMutex(&tcp->mx, "cm_conn_t mutex");
768 lock_ObtainMutex(&tcp->mx);
769 tcp->serverp = serverp;
770 tcp->cryptlevel = rxkad_clear;
771 cm_NewRXConnection(tcp, ucellp, serverp);
773 lock_ReleaseMutex(&tcp->mx);
775 if ((tcp->flags & CM_CONN_FLAG_FORCE_NEW) ||
776 (tcp->ucgen < ucellp->gen) ||
777 (tcp->cryptlevel != (cryptall ? (ucellp->flags & CM_UCELLFLAG_RXKAD ? rxkad_crypt : rxkad_clear) : rxkad_clear)))
779 if (tcp->ucgen < ucellp->gen)
780 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to token update");
782 osi_Log0(afsd_logp, "cm_ConnByServer replace connection due to crypt change");
783 lock_ObtainMutex(&tcp->mx);
784 tcp->flags &= ~CM_CONN_FLAG_FORCE_NEW;
785 rx_DestroyConnection(tcp->callp);
786 cm_NewRXConnection(tcp, ucellp, serverp);
787 lock_ReleaseMutex(&tcp->mx);
791 lock_ReleaseWrite(&cm_connLock);
792 lock_ReleaseMutex(&userp->mx);
794 /* return this pointer to our caller */
795 osi_Log1(afsd_logp, "cm_ConnByServer returning conn 0x%p", tcp);
801 long cm_Conn(struct cm_fid *fidp, struct cm_user *userp, cm_req_t *reqp,
806 cm_serverRef_t **serverspp;
808 code = cm_GetServerList(fidp, userp, reqp, &serverspp);
814 code = cm_ConnByMServers(*serverspp, userp, reqp, connpp);
815 cm_FreeServerList(serverspp);
819 extern struct rx_connection *
820 cm_GetRxConn(cm_conn_t *connp)
822 struct rx_connection * rxconn;
823 lock_ObtainMutex(&connp->mx);
824 rxconn = connp->callp;
825 rx_GetConnection(rxconn);
826 lock_ReleaseMutex(&connp->mx);
830 void cm_ForceNewConnections(cm_server_t *serverp)
834 lock_ObtainWrite(&cm_connLock);
835 for (tcp = serverp->connsp; tcp; tcp=tcp->nextp) {
836 lock_ObtainMutex(&tcp->mx);
837 tcp->flags |= CM_CONN_FLAG_FORCE_NEW;
838 lock_ReleaseMutex(&tcp->mx);
840 lock_ReleaseWrite(&cm_connLock);