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
12 * Exported routines (and their private support) to implement
13 * the callback RPC interface.
16 #include <afsconfig.h>
17 #include "afs/param.h"
22 #include "afs/sysincludes.h" /*Standard vendor system headers */
23 #include "afsincludes.h" /*AFS-based standard headers */
24 #include "afs/afs_stats.h" /*Cache Manager stats */
25 #include "afs/afs_args.h"
27 afs_int32 afs_allCBs = 0; /*Break callbacks on all objects */
28 afs_int32 afs_oddCBs = 0; /*Break callbacks on dirs */
29 afs_int32 afs_evenCBs = 0; /*Break callbacks received on files */
30 afs_int32 afs_allZaps = 0; /*Objects entries deleted */
31 afs_int32 afs_oddZaps = 0; /*Dir cache entries deleted */
32 afs_int32 afs_evenZaps = 0; /*File cache entries deleted */
33 afs_int32 afs_connectBacks = 0;
36 * Some debugging aids.
38 static struct ltable {
43 "afs_xvcache", (char *)&afs_xvcache}, {
44 "afs_xdcache", (char *)&afs_xdcache}, {
45 "afs_xserver", (char *)&afs_xserver}, {
46 "afs_xvcb", (char *)&afs_xvcb}, {
47 "afs_xbrs", (char *)&afs_xbrs}, {
48 "afs_xcell", (char *)&afs_xcell}, {
49 "afs_xconn", (char *)&afs_xconn}, {
50 "afs_xuser", (char *)&afs_xuser}, {
51 "afs_xvolume", (char *)&afs_xvolume}, {
52 "puttofile", (char *)&afs_puttofileLock}, {
53 "afs_ftf", (char *)&afs_ftf}, {
54 "afs_xcbhash", (char *)&afs_xcbhash}, {
55 "afs_xaxs", (char *)&afs_xaxs}, {
56 "afs_xinterface", (char *)&afs_xinterface},
59 "afs_xosi", (char *)&afs_xosi},
62 "afs_xsrvAddr", (char *)&afs_xsrvAddr}
64 unsigned long lastCallBack_vnode;
65 unsigned int lastCallBack_dv;
66 osi_timeval_t lastCallBack_time;
68 /* these are for storing alternate interface addresses */
69 struct interfaceAddr afs_cb_interface;
71 /*------------------------------------------------------------------------
72 * EXPORTED SRXAFSCB_GetCE
75 * Routine called by the server-side callback RPC interface to
76 * implement pulling out the contents of the i'th cache entry.
79 * a_call : Ptr to Rx call on which this request came in.
80 * a_index : Index of desired cache entry.
81 * a_result : Ptr to a buffer for the given cache entry.
84 * 0 if everything went fine,
85 * 1 if we were given a bad index.
88 * Nothing interesting.
92 *------------------------------------------------------------------------*/
95 SRXAFSCB_GetCE(struct rx_call *a_call, afs_int32 a_index,
96 struct AFSDBCacheEntry *a_result)
99 register int i; /*Loop variable */
100 register struct vcache *tvc; /*Ptr to current cache entry */
101 int code; /*Return code */
106 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETCE);
108 AFS_STATCNT(SRXAFSCB_GetCE);
109 for (i = 0; i < VCSIZE; i++) {
110 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
114 } /*Zip through current hash chain */
115 } /*Zip through hash chains */
125 * Copy out the located entry.
127 a_result->addr = afs_data_pointer_to_int32(tvc);
128 a_result->cell = tvc->fid.Cell;
129 a_result->netFid.Volume = tvc->fid.Fid.Volume;
130 a_result->netFid.Vnode = tvc->fid.Fid.Vnode;
131 a_result->netFid.Unique = tvc->fid.Fid.Unique;
132 a_result->lock.waitStates = tvc->lock.wait_states;
133 a_result->lock.exclLocked = tvc->lock.excl_locked;
134 a_result->lock.readersReading = tvc->lock.readers_reading;
135 a_result->lock.numWaiting = tvc->lock.num_waiting;
136 #if defined(INSTRUMENT_LOCKS)
137 a_result->lock.pid_last_reader = tvc->lock.pid_last_reader;
138 a_result->lock.pid_writer = tvc->lock.pid_writer;
139 a_result->lock.src_indicator = tvc->lock.src_indicator;
141 /* On osf20 , the vcache does not maintain these three fields */
142 a_result->lock.pid_last_reader = 0;
143 a_result->lock.pid_writer = 0;
144 a_result->lock.src_indicator = 0;
145 #endif /* AFS_OSF20_ENV */
146 #ifdef AFS_64BIT_CLIENT
147 a_result->Length = (afs_int32) tvc->m.Length & 0xffffffff;
148 #else /* AFS_64BIT_CLIENT */
149 a_result->Length = tvc->m.Length;
150 #endif /* AFS_64BIT_CLIENT */
151 a_result->DataVersion = hgetlo(tvc->m.DataVersion);
152 a_result->callback = afs_data_pointer_to_int32(tvc->callback); /* XXXX Now a pointer; change it XXXX */
153 a_result->cbExpires = tvc->cbExpires;
154 a_result->refCount = VREFCOUNT(tvc);
155 a_result->opens = tvc->opens;
156 a_result->writers = tvc->execsOrWriters;
157 a_result->mvstat = tvc->mvstat;
158 a_result->states = tvc->states;
162 * Return our results.
171 } /*SRXAFSCB_GetCE */
174 SRXAFSCB_GetCE64(struct rx_call *a_call, afs_int32 a_index,
175 struct AFSDBCacheEntry64 *a_result)
177 register int i; /*Loop variable */
178 register struct vcache *tvc; /*Ptr to current cache entry */
179 int code; /*Return code */
184 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETCE);
186 AFS_STATCNT(SRXAFSCB_GetCE64);
187 for (i = 0; i < VCSIZE; i++) {
188 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
192 } /*Zip through current hash chain */
193 } /*Zip through hash chains */
203 * Copy out the located entry.
205 a_result->addr = afs_data_pointer_to_int32(tvc);
206 a_result->cell = tvc->fid.Cell;
207 a_result->netFid.Volume = tvc->fid.Fid.Volume;
208 a_result->netFid.Vnode = tvc->fid.Fid.Vnode;
209 a_result->netFid.Unique = tvc->fid.Fid.Unique;
210 a_result->lock.waitStates = tvc->lock.wait_states;
211 a_result->lock.exclLocked = tvc->lock.excl_locked;
212 a_result->lock.readersReading = tvc->lock.readers_reading;
213 a_result->lock.numWaiting = tvc->lock.num_waiting;
214 #if defined(INSTRUMENT_LOCKS)
215 a_result->lock.pid_last_reader = tvc->lock.pid_last_reader;
216 a_result->lock.pid_writer = tvc->lock.pid_writer;
217 a_result->lock.src_indicator = tvc->lock.src_indicator;
219 /* On osf20 , the vcache does not maintain these three fields */
220 a_result->lock.pid_last_reader = 0;
221 a_result->lock.pid_writer = 0;
222 a_result->lock.src_indicator = 0;
223 #endif /* AFS_OSF20_ENV */
225 a_result->Length = tvc->m.Length;
226 #else /* AFS_64BIT_ENV */
227 #ifdef AFS_64BIT_CLIENT
228 a_result->Length = tvc->m.Length;
229 #else /* AFS_64BIT_CLIENT */
230 a_result->Length.high = 0;
231 a_result->Length.low = tvc->m.Length;
232 #endif /* AFS_64BIT_CLIENT */
233 #endif /* AFS_64BIT_ENV */
234 a_result->DataVersion = hgetlo(tvc->m.DataVersion);
235 a_result->callback = afs_data_pointer_to_int32(tvc->callback); /* XXXX Now a pointer; change it XXXX */
236 a_result->cbExpires = tvc->cbExpires;
237 a_result->refCount = VREFCOUNT(tvc);
238 a_result->opens = tvc->opens;
239 a_result->writers = tvc->execsOrWriters;
240 a_result->mvstat = tvc->mvstat;
241 a_result->states = tvc->states;
245 * Return our results.
254 } /*SRXAFSCB_GetCE64 */
257 /*------------------------------------------------------------------------
258 * EXPORTED SRXAFSCB_GetLock
261 * Routine called by the server-side callback RPC interface to
262 * implement pulling out the contents of a lock in the lock
266 * a_call : Ptr to Rx call on which this request came in.
267 * a_index : Index of desired lock.
268 * a_result : Ptr to a buffer for the given lock.
271 * 0 if everything went fine,
272 * 1 if we were given a bad index.
275 * Nothing interesting.
279 *------------------------------------------------------------------------*/
282 SRXAFSCB_GetLock(struct rx_call *a_call, afs_int32 a_index,
283 struct AFSDBLock *a_result)
285 struct ltable *tl; /*Ptr to lock table entry */
286 int nentries; /*Num entries in table */
287 int code; /*Return code */
292 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETLOCK);
294 AFS_STATCNT(SRXAFSCB_GetLock);
295 nentries = sizeof(ltable) / sizeof(struct ltable);
296 if (a_index < 0 || a_index >= nentries) {
303 * Found it - copy out its contents.
305 tl = <able[a_index];
306 strcpy(a_result->name, tl->name);
307 a_result->lock.waitStates =
308 ((struct afs_lock *)(tl->addr))->wait_states;
309 a_result->lock.exclLocked =
310 ((struct afs_lock *)(tl->addr))->excl_locked;
311 a_result->lock.readersReading =
312 ((struct afs_lock *)(tl->addr))->readers_reading;
313 a_result->lock.numWaiting =
314 ((struct afs_lock *)(tl->addr))->num_waiting;
315 #ifdef INSTRUMENT_LOCKS
316 a_result->lock.pid_last_reader =
317 ((struct afs_lock *)(tl->addr))->pid_last_reader;
318 a_result->lock.pid_writer =
319 ((struct afs_lock *)(tl->addr))->pid_writer;
320 a_result->lock.src_indicator =
321 ((struct afs_lock *)(tl->addr))->src_indicator;
323 a_result->lock.pid_last_reader = 0;
324 a_result->lock.pid_writer = 0;
325 a_result->lock.src_indicator = 0;
336 } /*SRXAFSCB_GetLock */
339 /*------------------------------------------------------------------------
340 * static ClearCallBack
343 * Clear out callback information for the specified file, or
344 * even a whole volume. Used to worry about callback was from
345 * within the particular cell or not. Now we don't bother with
346 * that anymore; it's not worth the time.
349 * a_conn : Ptr to Rx connection involved.
350 * a_fid : Ptr to AFS fid being cleared.
356 * Nothing interesting.
361 Appears to need to be called with GLOCK held, as the icl_Event4 stuff asserts otherwise
363 *------------------------------------------------------------------------*/
366 ClearCallBack(register struct rx_connection *a_conn,
367 register struct AFSFid *a_fid)
369 register struct vcache *tvc;
371 struct VenusFid localFid;
374 AFS_STATCNT(ClearCallBack);
379 * XXXX Don't hold any server locks here because of callback protocol XXX
382 localFid.Fid.Volume = a_fid->Volume;
383 localFid.Fid.Vnode = a_fid->Vnode;
384 localFid.Fid.Unique = a_fid->Unique;
387 * Volume ID of zero means don't do anything.
389 if (a_fid->Volume != 0) {
390 if (a_fid->Vnode == 0) {
392 * Clear callback for the whole volume. Zip through the
393 * hash chain, nullifying entries whose volume ID matches.
395 for (i = 0; i < VCSIZE; i++)
396 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
397 if (tvc->fid.Fid.Volume == a_fid->Volume) {
398 tvc->callback = NULL;
399 tvc->quick.stamp = 0;
401 localFid.Cell = tvc->fid.Cell;
402 tvc->h1.dchint = NULL; /* invalidate hints */
403 ObtainWriteLock(&afs_xcbhash, 449);
404 afs_DequeueCallback(tvc);
405 tvc->states &= ~(CStatd | CUnique | CBulkFetching);
407 if (tvc->fid.Fid.Vnode & 1)
411 ReleaseWriteLock(&afs_xcbhash);
412 if (tvc->fid.Fid.Vnode & 1 || (vType(tvc) == VDIR))
413 osi_dnlc_purgedp(tvc);
414 afs_Trace3(afs_iclSetp, CM_TRACE_CALLBACK,
415 ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32,
416 tvc->states, ICL_TYPE_INT32,
418 } else if ((tvc->states & CMValid)
419 && (tvc->mvid->Fid.Volume == a_fid->Volume)) {
420 tvc->states &= ~CMValid;
422 localFid.Cell = tvc->mvid->Cell;
427 * XXXX Don't hold any locks here XXXX
429 tv = afs_FindVolume(&localFid, 0);
431 afs_ResetVolumeInfo(tv);
432 afs_PutVolume(tv, 0);
433 /* invalidate mtpoint? */
435 } /*Clear callbacks for whole volume */
438 * Clear callbacks just for the one file.
441 if (a_fid->Vnode & 1)
442 afs_oddCBs++; /*Could do this on volume basis, too */
444 afs_evenCBs++; /*A particular fid was specified */
445 i = VCHash(&localFid);
446 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
447 if (tvc->fid.Fid.Vnode == a_fid->Vnode
448 && tvc->fid.Fid.Volume == a_fid->Volume
449 && tvc->fid.Fid.Unique == a_fid->Unique) {
450 tvc->callback = NULL;
451 tvc->quick.stamp = 0;
452 tvc->h1.dchint = NULL; /* invalidate hints */
453 ObtainWriteLock(&afs_xcbhash, 450);
454 afs_DequeueCallback(tvc);
455 tvc->states &= ~(CStatd | CUnique | CBulkFetching);
456 ReleaseWriteLock(&afs_xcbhash);
457 if (a_fid->Vnode & 1 || (vType(tvc) == VDIR))
458 osi_dnlc_purgedp(tvc);
459 afs_Trace3(afs_iclSetp, CM_TRACE_CALLBACK,
460 ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32,
461 tvc->states, ICL_TYPE_LONG, 0);
463 lastCallBack_vnode = afid->Vnode;
464 lastCallBack_dv = tvc->mstat.DataVersion.low;
465 osi_GetuTime(&lastCallBack_time);
468 } /*Walk through hash table */
469 } /*Clear callbacks for one file */
472 /*Fid has non-zero volume ID */
474 * Always return a predictable value.
481 /*------------------------------------------------------------------------
482 * EXPORTED SRXAFSCB_CallBack
485 * Routine called by the server-side callback RPC interface to
486 * implement passing in callback information.
490 * a_call : Ptr to Rx call on which this request came in.
491 * a_fids : Ptr to array of fids involved.
492 * a_callbacks : Ptr to matching callback info for the fids.
498 * Nothing interesting.
502 *------------------------------------------------------------------------*/
505 SRXAFSCB_CallBack(struct rx_call *a_call, register struct AFSCBFids *a_fids,
506 struct AFSCBs *a_callbacks)
508 register int i; /*Loop variable */
509 struct AFSFid *tfid; /*Ptr to current fid */
510 register struct rx_connection *tconn; /*Call's connection */
516 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_CALLBACK);
518 AFS_STATCNT(SRXAFSCB_CallBack);
519 if (!(tconn = rx_ConnectionOf(a_call)))
521 tfid = (struct AFSFid *)a_fids->AFSCBFids_val;
524 * For now, we ignore callbacks, since the File Server only *breaks*
525 * callbacks at present.
527 for (i = 0; i < a_fids->AFSCBFids_len; i++)
528 ClearCallBack(tconn, &tfid[i]);
536 } /*SRXAFSCB_CallBack */
539 /*------------------------------------------------------------------------
540 * EXPORTED SRXAFSCB_Probe
543 * Routine called by the server-side callback RPC interface to
544 * implement ``probing'' the Cache Manager, just making sure it's
548 * a_call : Ptr to Rx call on which this request came in.
554 * Nothing interesting.
558 *------------------------------------------------------------------------*/
561 SRXAFSCB_Probe(struct rx_call *a_call)
567 AFS_STATCNT(SRXAFSCB_Probe);
569 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_PROBE);
576 } /*SRXAFSCB_Probe */
579 /*------------------------------------------------------------------------
580 * EXPORTED SRXAFSCB_InitCallBackState
583 * Routine called by the server-side callback RPC interface to
584 * implement clearing all callbacks from this host.
587 * a_call : Ptr to Rx call on which this request came in.
593 * Nothing interesting.
597 *------------------------------------------------------------------------*/
600 SRXAFSCB_InitCallBackState(struct rx_call *a_call)
603 register struct vcache *tvc;
604 register struct rx_connection *tconn;
605 register struct rx_peer *peer;
612 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_INITCALLBACKSTATE);
613 AFS_STATCNT(SRXAFSCB_InitCallBackState);
616 * Find the address of the host making this call
618 if ((tconn = rx_ConnectionOf(a_call)) && (peer = rx_PeerOf(tconn))) {
621 afs_oddCBs++; /*Including any missed via create race */
622 afs_evenCBs++; /*Including any missed via create race */
624 ts = afs_FindServer(rx_HostOf(peer), rx_PortOf(peer), (afsUUID *) 0,
627 for (i = 0; i < VCSIZE; i++)
628 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
629 if (tvc->callback == ts) {
630 ObtainWriteLock(&afs_xcbhash, 451);
631 afs_DequeueCallback(tvc);
632 tvc->callback = NULL;
633 tvc->states &= ~(CStatd | CUnique | CBulkFetching);
634 ReleaseWriteLock(&afs_xcbhash);
641 /* find any volumes residing on this server and flush their state */
643 register struct volume *tv;
646 for (i = 0; i < NVOLS; i++)
647 for (tv = afs_volumes[i]; tv; tv = tv->next) {
648 for (j = 0; j < MAXHOSTS; j++)
649 if (tv->serverHost[j] == ts)
650 afs_ResetVolumeInfo(tv);
653 osi_dnlc_purge(); /* may be a little bit extreme */
662 } /*SRXAFSCB_InitCallBackState */
665 /*------------------------------------------------------------------------
666 * EXPORTED SRXAFSCB_XStatsVersion
669 * Routine called by the server-side callback RPC interface to
670 * implement pulling out the xstat version number for the Cache
674 * a_versionP : Ptr to the version number variable to set.
680 * Nothing interesting.
684 *------------------------------------------------------------------------*/
687 SRXAFSCB_XStatsVersion(struct rx_call *a_call, afs_int32 * a_versionP)
694 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_XSTATSVERSION);
696 *a_versionP = AFSCB_XSTAT_VERSION;
703 } /*SRXAFSCB_XStatsVersion */
706 /*------------------------------------------------------------------------
707 * EXPORTED SRXAFSCB_GetXStats
710 * Routine called by the server-side callback RPC interface to
711 * implement getting the given data collection from the extended
712 * Cache Manager statistics.
715 * a_call : Ptr to Rx call on which this request came in.
716 * a_clientVersionNum : Client version number.
717 * a_opCode : Desired operation.
718 * a_serverVersionNumP : Ptr to version number to set.
719 * a_timeP : Ptr to time value (seconds) to set.
720 * a_dataArray : Ptr to variable array structure to return
727 * Nothing interesting.
731 *------------------------------------------------------------------------*/
734 SRXAFSCB_GetXStats(struct rx_call *a_call, afs_int32 a_clientVersionNum,
735 afs_int32 a_collectionNumber, afs_int32 * a_srvVersionNumP,
736 afs_int32 * a_timeP, AFSCB_CollData * a_dataP)
738 register int code; /*Return value */
739 afs_int32 *dataBuffP; /*Ptr to data to be returned */
740 afs_int32 dataBytes; /*Bytes in data buffer */
745 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETXSTATS);
748 * Record the time of day and the server version number.
750 *a_srvVersionNumP = AFSCB_XSTAT_VERSION;
751 *a_timeP = osi_Time();
754 * Stuff the appropriate data in there (assume victory)
760 * We're not keeping stats, so just return successfully with
763 a_dataP->AFSCB_CollData_len = 0;
764 a_dataP->AFSCB_CollData_val = NULL;
766 switch (a_collectionNumber) {
767 case AFSCB_XSTATSCOLL_CALL_INFO:
769 * Pass back all the call-count-related data.
771 * >>> We are forced to allocate a separate area in which to
772 * >>> put this stuff in by the RPC stub generator, since it
773 * >>> will be freed at the tail end of the server stub code.
775 dataBytes = sizeof(struct afs_CMStats);
776 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
777 memcpy((char *)dataBuffP, (char *)&afs_cmstats, dataBytes);
778 a_dataP->AFSCB_CollData_len = dataBytes >> 2;
779 a_dataP->AFSCB_CollData_val = dataBuffP;
782 case AFSCB_XSTATSCOLL_PERF_INFO:
784 * Update and then pass back all the performance-related data.
785 * Note: the only performance fields that need to be computed
786 * at this time are the number of accesses for this collection
787 * and the current server record info.
789 * >>> We are forced to allocate a separate area in which to
790 * >>> put this stuff in by the RPC stub generator, since it
791 * >>> will be freed at the tail end of the server stub code.
793 afs_stats_cmperf.numPerfCalls++;
795 dataBytes = sizeof(afs_stats_cmperf);
796 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
797 memcpy((char *)dataBuffP, (char *)&afs_stats_cmperf, dataBytes);
798 a_dataP->AFSCB_CollData_len = dataBytes >> 2;
799 a_dataP->AFSCB_CollData_val = dataBuffP;
802 case AFSCB_XSTATSCOLL_FULL_PERF_INFO:
804 * Pass back the full range of performance and statistical
805 * data available. We have to bring the normal performance
806 * data collection up to date, then copy that data into
807 * the full collection.
809 * >>> We are forced to allocate a separate area in which to
810 * >>> put this stuff in by the RPC stub generator, since it
811 * >>> will be freed at the tail end of the server stub code.
813 afs_stats_cmperf.numPerfCalls++;
815 memcpy((char *)(&(afs_stats_cmfullperf.perf)),
816 (char *)(&afs_stats_cmperf), sizeof(struct afs_stats_CMPerf));
817 afs_stats_cmfullperf.numFullPerfCalls++;
819 dataBytes = sizeof(afs_stats_cmfullperf);
820 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
821 memcpy((char *)dataBuffP, (char *)(&afs_stats_cmfullperf), dataBytes);
822 a_dataP->AFSCB_CollData_len = dataBytes >> 2;
823 a_dataP->AFSCB_CollData_val = dataBuffP;
828 * Illegal collection number.
830 a_dataP->AFSCB_CollData_len = 0;
831 a_dataP->AFSCB_CollData_val = NULL;
833 } /*Switch on collection number */
834 #endif /* AFS_NOSTATS */
842 } /*SRXAFSCB_GetXStats */
845 /*------------------------------------------------------------------------
846 * EXPORTED afs_RXCallBackServer
849 * Body of the thread supporting callback services.
858 * Nothing interesting.
862 *------------------------------------------------------------------------*/
865 afs_RXCallBackServer(void)
867 AFS_STATCNT(afs_RXCallBackServer);
872 afs_osi_Sleep(&afs_server);
876 * Donate this process to Rx.
881 } /*afs_RXCallBackServer */
884 /*------------------------------------------------------------------------
885 * EXPORTED shutdown_CB
888 * Zero out important Cache Manager data structures.
897 * Nothing interesting.
901 *------------------------------------------------------------------------*/
906 AFS_STATCNT(shutdown_CB);
908 if (afs_cold_shutdown) {
909 afs_oddCBs = afs_evenCBs = afs_allCBs = afs_allZaps = afs_oddZaps =
910 afs_evenZaps = afs_connectBacks = 0;
917 /*------------------------------------------------------------------------
918 * EXPORTED SRXAFSCB_InitCallBackState2
921 * This routine was used in the AFS 3.5 beta release, but not anymore.
922 * It has since been replaced by SRXAFSCB_InitCallBackState3.
925 * a_call : Ptr to Rx call on which this request came in.
928 * RXGEN_OPCODE (always).
931 * Nothing interesting.
935 *------------------------------------------------------------------------*/
938 SRXAFSCB_InitCallBackState2(struct rx_call *a_call,
939 struct interfaceAddr *addr)
944 /*------------------------------------------------------------------------
945 * EXPORTED SRXAFSCB_WhoAreYou
948 * Routine called by the server-side callback RPC interface to
949 * obtain a unique identifier for the client. The server uses
950 * this identifier to figure out whether or not two RX connections
951 * are from the same client, and to find out which addresses go
952 * with which clients.
955 * a_call : Ptr to Rx call on which this request came in.
956 * addr: Ptr to return the list of interfaces for this client.
962 * Nothing interesting.
966 *------------------------------------------------------------------------*/
969 SRXAFSCB_WhoAreYou(struct rx_call *a_call, struct interfaceAddr *addr)
976 AFS_STATCNT(SRXAFSCB_WhoAreYou);
978 ObtainReadLock(&afs_xinterface);
980 /* return all network interface addresses */
981 addr->numberOfInterfaces = afs_cb_interface.numberOfInterfaces;
982 addr->uuid = afs_cb_interface.uuid;
983 for (i = 0; i < afs_cb_interface.numberOfInterfaces; i++) {
984 addr->addr_in[i] = ntohl(afs_cb_interface.addr_in[i]);
985 addr->subnetmask[i] = ntohl(afs_cb_interface.subnetmask[i]);
986 addr->mtu[i] = ntohl(afs_cb_interface.mtu[i]);
989 ReleaseReadLock(&afs_xinterface);
997 /*------------------------------------------------------------------------
998 * EXPORTED SRXAFSCB_InitCallBackState3
1001 * Routine called by the server-side callback RPC interface to
1002 * implement clearing all callbacks from this host.
1005 * a_call : Ptr to Rx call on which this request came in.
1011 * Nothing interesting.
1015 *------------------------------------------------------------------------*/
1018 SRXAFSCB_InitCallBackState3(struct rx_call *a_call, afsUUID * a_uuid)
1023 * TBD: Lookup the server by the UUID instead of its IP address.
1025 code = SRXAFSCB_InitCallBackState(a_call);
1031 /*------------------------------------------------------------------------
1032 * EXPORTED SRXAFSCB_ProbeUuid
1035 * Routine called by the server-side callback RPC interface to
1036 * implement ``probing'' the Cache Manager, just making sure it's
1037 * still there is still the same client it used to be.
1040 * a_call : Ptr to Rx call on which this request came in.
1041 * a_uuid : Ptr to UUID that must match the client's UUID.
1044 * 0 if a_uuid matches the UUID for this client
1045 * Non-zero otherwize
1048 * Nothing interesting.
1052 *------------------------------------------------------------------------*/
1055 SRXAFSCB_ProbeUuid(struct rx_call *a_call, afsUUID * a_uuid)
1061 AFS_STATCNT(SRXAFSCB_Probe);
1063 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_PROBE);
1064 if (!afs_uuid_equal(a_uuid, &afs_cb_interface.uuid))
1065 code = 1; /* failure */
1074 /*------------------------------------------------------------------------
1075 * EXPORTED SRXAFSCB_GetServerPrefs
1078 * Routine to list server preferences used by this client.
1081 * a_call : Ptr to Rx call on which this request came in.
1082 * a_index : Input server index
1083 * a_srvr_addr : Output server address in host byte order
1084 * (0xffffffff on last server)
1085 * a_srvr_rank : Output server rank
1091 * Nothing interesting.
1095 *------------------------------------------------------------------------*/
1098 SRXAFSCB_GetServerPrefs(struct rx_call *a_call, afs_int32 a_index,
1099 afs_int32 * a_srvr_addr, afs_int32 * a_srvr_rank)
1105 AFS_STATCNT(SRXAFSCB_GetServerPrefs);
1107 ObtainReadLock(&afs_xserver);
1109 /* Search the hash table for the server with this index */
1110 *a_srvr_addr = 0xffffffff;
1111 *a_srvr_rank = 0xffffffff;
1112 for (i = 0, j = 0; j < NSERVERS && i <= a_index; j++) {
1113 for (sa = afs_srvAddrs[j]; sa && i <= a_index; sa = sa->next_bkt, i++) {
1115 *a_srvr_addr = ntohl(sa->sa_ip);
1116 *a_srvr_rank = sa->sa_iprank;
1121 ReleaseReadLock(&afs_xserver);
1129 /*------------------------------------------------------------------------
1130 * EXPORTED SRXAFSCB_GetCellServDB
1133 * Routine to list cells configured for this client
1136 * a_call : Ptr to Rx call on which this request came in.
1137 * a_index : Input cell index
1138 * a_name : Output cell name ("" on last cell)
1139 * a_hosts : Output cell database servers in host byte order.
1145 * Nothing interesting.
1149 *------------------------------------------------------------------------*/
1152 SRXAFSCB_GetCellServDB(struct rx_call *a_call, afs_int32 a_index,
1153 char **a_name, serverList * a_hosts)
1157 char *t_name, *p_name = NULL;
1160 AFS_STATCNT(SRXAFSCB_GetCellServDB);
1162 tcell = afs_GetCellByIndex(a_index, READ_LOCK);
1166 a_hosts->serverList_val = 0;
1167 a_hosts->serverList_len = 0;
1169 p_name = tcell->cellName;
1170 for (j = 0; j < AFSMAXCELLHOSTS && tcell->cellHosts[j]; j++);
1172 a_hosts->serverList_val =
1173 (afs_int32 *) afs_osi_Alloc(j * sizeof(afs_int32));
1174 a_hosts->serverList_len = j;
1175 for (j = 0; j < AFSMAXCELLHOSTS && tcell->cellHosts[j]; j++)
1176 a_hosts->serverList_val[j] =
1177 ntohl(tcell->cellHosts[j]->addr->sa_ip);
1178 afs_PutCell(tcell, READ_LOCK);
1181 t_name = (char *)afs_osi_Alloc(i + 1);
1182 if (t_name == NULL) {
1183 afs_osi_Free(a_hosts->serverList_val, (j * sizeof(afs_int32)));
1190 memcpy(t_name, p_name, i);
1199 /*------------------------------------------------------------------------
1200 * EXPORTED SRXAFSCB_GetLocalCell
1203 * Routine to return name of client's local cell
1206 * a_call : Ptr to Rx call on which this request came in.
1207 * a_name : Output cell name
1213 * Nothing interesting.
1217 *------------------------------------------------------------------------*/
1220 SRXAFSCB_GetLocalCell(struct rx_call *a_call, char **a_name)
1224 char *t_name, *p_name = NULL;
1227 AFS_STATCNT(SRXAFSCB_GetLocalCell);
1229 /* Search the list for the primary cell. Cell number 1 is only
1230 * the primary cell is when no other cell is explicitly marked as
1231 * the primary cell. */
1232 tcell = afs_GetPrimaryCell(READ_LOCK);
1234 p_name = tcell->cellName;
1236 plen = strlen(p_name);
1239 t_name = (char *)afs_osi_Alloc(plen + 1);
1240 if (t_name == NULL) {
1242 afs_PutCell(tcell, READ_LOCK);
1247 t_name[plen] = '\0';
1249 memcpy(t_name, p_name, plen);
1255 afs_PutCell(tcell, READ_LOCK);
1261 * afs_MarshallCacheConfig - marshall client cache configuration
1265 * IN callerVersion - the rpc stat version of the caller.
1267 * IN config - client cache configuration.
1269 * OUT ptr - buffer where configuration is marshalled.
1276 afs_MarshallCacheConfig(afs_uint32 callerVersion, cm_initparams_v1 * config,
1279 AFS_STATCNT(afs_MarshallCacheConfig);
1281 * We currently only support version 1.
1283 *(ptr++) = config->nChunkFiles;
1284 *(ptr++) = config->nStatCaches;
1285 *(ptr++) = config->nDataCaches;
1286 *(ptr++) = config->nVolumeCaches;
1287 *(ptr++) = config->firstChunkSize;
1288 *(ptr++) = config->otherChunkSize;
1289 *(ptr++) = config->cacheSize;
1290 *(ptr++) = config->setTime;
1291 *(ptr++) = config->memCache;
1295 /*------------------------------------------------------------------------
1296 * EXPORTED SRXAFSCB_GetCacheConfig
1299 * Routine to return parameters used to initialize client cache.
1300 * Client may request any format version. Server may not return
1301 * format version greater than version requested by client.
1304 * a_call: Ptr to Rx call on which this request came in.
1305 * callerVersion: Data format version desired by the client.
1306 * serverVersion: Data format version of output data.
1307 * configCount: Number bytes allocated for output data.
1308 * config: Client cache configuration.
1314 * Nothing interesting.
1318 *------------------------------------------------------------------------*/
1321 SRXAFSCB_GetCacheConfig(struct rx_call *a_call, afs_uint32 callerVersion,
1322 afs_uint32 * serverVersion, afs_uint32 * configCount,
1323 cacheConfig * config)
1325 afs_uint32 *t_config;
1327 cm_initparams_v1 cm_config;
1330 AFS_STATCNT(SRXAFSCB_GetCacheConfig);
1333 * Currently only support version 1
1335 allocsize = sizeof(cm_initparams_v1);
1336 t_config = (afs_uint32 *) afs_osi_Alloc(allocsize);
1337 if (t_config == NULL) {
1342 cm_config.nChunkFiles = cm_initParams.cmi_nChunkFiles;
1343 cm_config.nStatCaches = cm_initParams.cmi_nStatCaches;
1344 cm_config.nDataCaches = cm_initParams.cmi_nDataCaches;
1345 cm_config.nVolumeCaches = cm_initParams.cmi_nVolumeCaches;
1346 cm_config.firstChunkSize = cm_initParams.cmi_firstChunkSize;
1347 cm_config.otherChunkSize = cm_initParams.cmi_otherChunkSize;
1348 cm_config.cacheSize = cm_initParams.cmi_cacheSize;
1349 cm_config.setTime = cm_initParams.cmi_setTime;
1350 cm_config.memCache = cm_initParams.cmi_memCache;
1352 afs_MarshallCacheConfig(callerVersion, &cm_config, t_config);
1354 *serverVersion = AFS_CLIENT_RETRIEVAL_FIRST_EDITION;
1355 *configCount = allocsize;
1356 config->cacheConfig_val = t_config;
1357 config->cacheConfig_len = allocsize / sizeof(afs_uint32);
1364 /*------------------------------------------------------------------------
1365 * EXPORTED SRXAFSCB_FetchData
1368 * Routine to do third party move from a remioserver to the original
1369 * issuer of an ArchiveData request. Presently supported only by the
1370 * "fs" command, not by the AFS client.
1373 * rxcall: Ptr to Rx call on which this request came in.
1374 * Fid: pointer to AFSFid structure.
1375 * Fd: File descriptor inside fs command.
1376 * Position: Offset in the file.
1377 * Length: Data length to transfer.
1378 * TotalLength: Pointer to total file length field
1384 * Nothing interesting.
1387 *------------------------------------------------------------------------*/
1389 SRXAFSCB_FetchData(struct rx_call *rxcall, struct AFSFid *Fid, afs_int32 Fd,
1390 afs_int64 Position, afs_int64 Length,
1391 afs_int64 * TotalLength)
1396 /*------------------------------------------------------------------------
1397 * EXPORTED SRXAFSCB_StoreData
1400 * Routine to do third party move from a remioserver to the original
1401 * issuer of a RetrieveData request. Presently supported only by the
1402 * "fs" command, not by the AFS client.
1405 * rxcall: Ptr to Rx call on which this request came in.
1406 * Fid: pointer to AFSFid structure.
1407 * Fd: File descriptor inside fs command.
1408 * Position: Offset in the file.
1409 * Length: Data length to transfer.
1410 * TotalLength: Pointer to total file length field
1416 * Nothing interesting.
1420 *------------------------------------------------------------------------*/
1422 SRXAFSCB_StoreData(struct rx_call *rxcall, struct AFSFid *Fid, afs_int32 Fd,
1423 afs_int64 Position, afs_int64 Length,
1424 afs_int64 * TotalLength)
1429 /*------------------------------------------------------------------------
1430 * EXPORTED SRXAFSCB_GetCellByNum
1433 * Routine to get information about a cell specified by its
1434 * cell number (returned by GetCE/GetCE64).
1437 * a_call : Ptr to Rx call on which this request came in.
1438 * a_cellnum : Input cell number
1439 * a_name : Output cell name (one zero byte when no such cell).
1440 * a_hosts : Output cell database servers in host byte order.
1446 * Nothing interesting.
1450 *------------------------------------------------------------------------*/
1453 SRXAFSCB_GetCellByNum(struct rx_call *a_call, afs_int32 a_cellnum,
1454 char **a_name, serverList * a_hosts)
1460 AFS_STATCNT(SRXAFSCB_GetCellByNum);
1462 a_hosts->serverList_val = 0;
1463 a_hosts->serverList_len = 0;
1465 tcell = afs_GetCellStale(a_cellnum, READ_LOCK);
1467 *a_name = afs_strdup("");
1472 ObtainReadLock(&tcell->lock);
1473 *a_name = afs_strdup(tcell->cellName);
1475 for (sn = 0; sn < AFSMAXCELLHOSTS && tcell->cellHosts[sn]; sn++);
1476 a_hosts->serverList_len = sn;
1477 a_hosts->serverList_val =
1478 (afs_int32 *) afs_osi_Alloc(sn * sizeof(afs_int32));
1480 for (i = 0; i < sn; i++)
1481 a_hosts->serverList_val[i] = ntohl(tcell->cellHosts[i]->addr->sa_ip);
1482 ReleaseReadLock(&tcell->lock);
1483 afs_PutCell(tcell, READ_LOCK);
1490 SRXAFSCB_TellMeAboutYourself(struct rx_call *a_call,
1491 struct interfaceAddr *addr,
1492 Capabilities * capabilities)
1496 afs_int32 *dataBuffP;
1497 afs_int32 dataBytes;
1501 AFS_STATCNT(SRXAFSCB_WhoAreYou);
1503 ObtainReadLock(&afs_xinterface);
1505 /* return all network interface addresses */
1506 addr->numberOfInterfaces = afs_cb_interface.numberOfInterfaces;
1507 addr->uuid = afs_cb_interface.uuid;
1508 for (i = 0; i < afs_cb_interface.numberOfInterfaces; i++) {
1509 addr->addr_in[i] = ntohl(afs_cb_interface.addr_in[i]);
1510 addr->subnetmask[i] = ntohl(afs_cb_interface.subnetmask[i]);
1511 addr->mtu[i] = ntohl(afs_cb_interface.mtu[i]);
1514 ReleaseReadLock(&afs_xinterface);
1518 dataBytes = 1 * sizeof(afs_int32);
1519 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
1520 dataBuffP[0] = CAPABILITY_ERRORTRANS;
1521 capabilities->Capabilities_len = dataBytes / sizeof(afs_int32);
1522 capabilities->Capabilities_val = dataBuffP;