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"
20 #include "afs/sysincludes.h" /*Standard vendor system headers */
21 #include "afsincludes.h" /*AFS-based standard headers */
22 #include "afs/afs_stats.h" /*Cache Manager stats */
23 #include "afs/afs_args.h"
25 afs_int32 afs_allCBs = 0; /*Break callbacks on all objects */
26 afs_int32 afs_oddCBs = 0; /*Break callbacks on dirs */
27 afs_int32 afs_evenCBs = 0; /*Break callbacks received on files */
28 afs_int32 afs_allZaps = 0; /*Objects entries deleted */
29 afs_int32 afs_oddZaps = 0; /*Dir cache entries deleted */
30 afs_int32 afs_evenZaps = 0; /*File cache entries deleted */
31 afs_int32 afs_connectBacks = 0;
34 * Some debugging aids.
36 static struct ltable {
41 "afs_xvcache", (char *)&afs_xvcache}, {
42 "afs_xdcache", (char *)&afs_xdcache}, {
43 "afs_xserver", (char *)&afs_xserver}, {
44 "afs_xvcb", (char *)&afs_xvcb}, {
45 "afs_xbrs", (char *)&afs_xbrs}, {
46 "afs_xcell", (char *)&afs_xcell}, {
47 "afs_xconn", (char *)&afs_xconn}, {
48 "afs_xuser", (char *)&afs_xuser}, {
49 "afs_xvolume", (char *)&afs_xvolume}, {
50 "puttofile", (char *)&afs_puttofileLock}, {
51 "afs_ftf", (char *)&afs_ftf}, {
52 "afs_xcbhash", (char *)&afs_xcbhash}, {
53 "afs_xaxs", (char *)&afs_xaxs}, {
54 "afs_xinterface", (char *)&afs_xinterface},
57 "afs_xosi", (char *)&afs_xosi},
60 "afs_xsrvAddr", (char *)&afs_xsrvAddr},
62 "afs_xvreclaim", (char *)&afs_xvreclaim},
63 { "afsdb_client_lock", (char *)&afsdb_client_lock},
64 { "afsdb_req_lock", (char *)&afsdb_req_lock},
65 { "afs_discon_lock", (char *)&afs_discon_lock},
66 { "afs_disconDirtyLock", (char *)&afs_disconDirtyLock},
67 { "afs_discon_vc_dirty", (char *)&afs_xvcdirty},
68 { "afs_dynrootDirLock", (char *)&afs_dynrootDirLock},
69 { "afs_dynSymlinkLock", (char *)&afs_dynSymlinkLock},
71 unsigned long lastCallBack_vnode;
72 unsigned int lastCallBack_dv;
73 osi_timeval_t lastCallBack_time;
75 /* these are for storing alternate interface addresses */
76 struct interfaceAddr afs_cb_interface;
78 /*------------------------------------------------------------------------
79 * EXPORTED SRXAFSCB_GetCE
82 * Routine called by the server-side callback RPC interface to
83 * implement pulling out the contents of the i'th cache entry.
86 * a_call : Ptr to Rx call on which this request came in.
87 * a_index : Index of desired cache entry.
88 * a_result : Ptr to a buffer for the given cache entry.
91 * 0 if everything went fine,
92 * 1 if we were given a bad index.
95 * Nothing interesting.
99 *------------------------------------------------------------------------*/
102 SRXAFSCB_GetCE(struct rx_call *a_call, afs_int32 a_index,
103 struct AFSDBCacheEntry *a_result)
106 int i; /*Loop variable */
107 struct vcache *tvc; /*Ptr to current cache entry */
108 int code; /*Return code */
113 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETCE);
115 AFS_STATCNT(SRXAFSCB_GetCE);
116 for (i = 0; i < VCSIZE; i++) {
117 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
121 } /*Zip through current hash chain */
122 } /*Zip through hash chains */
132 * Copy out the located entry.
134 a_result->addr = afs_data_pointer_to_int32(tvc);
135 a_result->cell = tvc->f.fid.Cell;
136 a_result->netFid.Volume = tvc->f.fid.Fid.Volume;
137 a_result->netFid.Vnode = tvc->f.fid.Fid.Vnode;
138 a_result->netFid.Unique = tvc->f.fid.Fid.Unique;
139 a_result->lock.waitStates = tvc->lock.wait_states;
140 a_result->lock.exclLocked = tvc->lock.excl_locked;
141 a_result->lock.readersReading = tvc->lock.readers_reading;
142 a_result->lock.numWaiting = tvc->lock.num_waiting;
143 #if defined(INSTRUMENT_LOCKS)
144 a_result->lock.pid_last_reader = MyPidxx2Pid(tvc->lock.pid_last_reader);
145 a_result->lock.pid_writer = MyPidxx2Pid(tvc->lock.pid_writer);
146 a_result->lock.src_indicator = tvc->lock.src_indicator;
148 /* On osf20 , the vcache does not maintain these three fields */
149 a_result->lock.pid_last_reader = 0;
150 a_result->lock.pid_writer = 0;
151 a_result->lock.src_indicator = 0;
152 #endif /* INSTRUMENT_LOCKS */
153 #ifdef AFS_64BIT_CLIENT
154 a_result->Length = (afs_int32) tvc->f.m.Length & 0xffffffff;
155 #else /* AFS_64BIT_CLIENT */
156 a_result->Length = tvc->f.m.Length;
157 #endif /* AFS_64BIT_CLIENT */
158 a_result->DataVersion = hgetlo(tvc->f.m.DataVersion);
159 a_result->callback = afs_data_pointer_to_int32(tvc->callback); /* XXXX Now a pointer; change it XXXX */
160 a_result->cbExpires = tvc->cbExpires;
161 if (tvc->f.states & CVInit) {
162 a_result->refCount = 1;
164 #ifdef AFS_DARWIN80_ENV
165 a_result->refCount = vnode_isinuse(AFSTOV(tvc),0)?1:0; /* XXX fix */
167 a_result->refCount = VREFCOUNT(tvc);
170 a_result->opens = tvc->opens;
171 a_result->writers = tvc->execsOrWriters;
172 a_result->mvstat = tvc->mvstat;
173 a_result->states = tvc->f.states;
177 * Return our results.
186 } /*SRXAFSCB_GetCE */
189 SRXAFSCB_GetCE64(struct rx_call *a_call, afs_int32 a_index,
190 struct AFSDBCacheEntry64 *a_result)
192 int i; /*Loop variable */
193 struct vcache *tvc; /*Ptr to current cache entry */
194 int code; /*Return code */
199 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETCE);
201 AFS_STATCNT(SRXAFSCB_GetCE64);
202 for (i = 0; i < VCSIZE; i++) {
203 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
207 } /*Zip through current hash chain */
208 } /*Zip through hash chains */
218 * Copy out the located entry.
220 a_result->addr = afs_data_pointer_to_int32(tvc);
221 a_result->cell = tvc->f.fid.Cell;
222 a_result->netFid.Volume = tvc->f.fid.Fid.Volume;
223 a_result->netFid.Vnode = tvc->f.fid.Fid.Vnode;
224 a_result->netFid.Unique = tvc->f.fid.Fid.Unique;
225 a_result->lock.waitStates = tvc->lock.wait_states;
226 a_result->lock.exclLocked = tvc->lock.excl_locked;
227 a_result->lock.readersReading = tvc->lock.readers_reading;
228 a_result->lock.numWaiting = tvc->lock.num_waiting;
229 #if defined(INSTRUMENT_LOCKS)
230 a_result->lock.pid_last_reader = MyPidxx2Pid(tvc->lock.pid_last_reader);
231 a_result->lock.pid_writer = MyPidxx2Pid(tvc->lock.pid_writer);
232 a_result->lock.src_indicator = tvc->lock.src_indicator;
234 /* On osf20 , the vcache does not maintain these three fields */
235 a_result->lock.pid_last_reader = 0;
236 a_result->lock.pid_writer = 0;
237 a_result->lock.src_indicator = 0;
238 #endif /* INSTRUMENT_LOCKS */
239 a_result->Length = tvc->f.m.Length;
240 a_result->DataVersion = hgetlo(tvc->f.m.DataVersion);
241 a_result->callback = afs_data_pointer_to_int32(tvc->callback); /* XXXX Now a pointer; change it XXXX */
242 a_result->cbExpires = tvc->cbExpires;
243 if (tvc->f.states & CVInit) {
244 a_result->refCount = 1;
246 #ifdef AFS_DARWIN80_ENV
247 a_result->refCount = vnode_isinuse(AFSTOV(tvc),0)?1:0; /* XXX fix */
249 a_result->refCount = VREFCOUNT(tvc);
252 a_result->opens = tvc->opens;
253 a_result->writers = tvc->execsOrWriters;
254 a_result->mvstat = tvc->mvstat;
255 a_result->states = tvc->f.states;
259 * Return our results.
268 } /*SRXAFSCB_GetCE64 */
271 /*------------------------------------------------------------------------
272 * EXPORTED SRXAFSCB_GetLock
275 * Routine called by the server-side callback RPC interface to
276 * implement pulling out the contents of a lock in the lock
280 * a_call : Ptr to Rx call on which this request came in.
281 * a_index : Index of desired lock.
282 * a_result : Ptr to a buffer for the given lock.
285 * 0 if everything went fine,
286 * 1 if we were given a bad index.
289 * Nothing interesting.
293 *------------------------------------------------------------------------*/
296 SRXAFSCB_GetLock(struct rx_call *a_call, afs_int32 a_index,
297 struct AFSDBLock *a_result)
299 struct ltable *tl; /*Ptr to lock table entry */
300 int nentries; /*Num entries in table */
301 int code; /*Return code */
306 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETLOCK);
308 AFS_STATCNT(SRXAFSCB_GetLock);
309 nentries = sizeof(ltable) / sizeof(struct ltable);
310 if (a_index < 0 || a_index >= nentries+afs_cellindex) {
315 } else if (a_index >= nentries) {
316 struct cell *tc = afs_GetCellByIndex(a_index-nentries, 0);
317 strcpy(a_result->name, tc->cellName);
318 a_result->lock.waitStates =
319 ((struct afs_lock *)&(tc->lock))->wait_states;
320 a_result->lock.exclLocked =
321 ((struct afs_lock *)&(tc->lock))->excl_locked;
322 a_result->lock.readersReading =
323 ((struct afs_lock *)&(tc->lock))->readers_reading;
324 a_result->lock.numWaiting =
325 ((struct afs_lock *)&(tc->lock))->num_waiting;
326 #ifdef INSTRUMENT_LOCKS
327 a_result->lock.pid_last_reader =
328 MyPidxx2Pid(((struct afs_lock *)&(tc->lock))->pid_last_reader);
329 a_result->lock.pid_writer =
330 MyPidxx2Pid(((struct afs_lock *)&(tc->lock))->pid_writer);
331 a_result->lock.src_indicator =
332 ((struct afs_lock *)&(tc->lock))->src_indicator;
334 a_result->lock.pid_last_reader = 0;
335 a_result->lock.pid_writer = 0;
336 a_result->lock.src_indicator = 0;
341 * Found it - copy out its contents.
343 tl = <able[a_index];
344 strcpy(a_result->name, tl->name);
345 a_result->lock.waitStates =
346 ((struct afs_lock *)(tl->addr))->wait_states;
347 a_result->lock.exclLocked =
348 ((struct afs_lock *)(tl->addr))->excl_locked;
349 a_result->lock.readersReading =
350 ((struct afs_lock *)(tl->addr))->readers_reading;
351 a_result->lock.numWaiting =
352 ((struct afs_lock *)(tl->addr))->num_waiting;
353 #ifdef INSTRUMENT_LOCKS
354 a_result->lock.pid_last_reader =
355 MyPidxx2Pid(((struct afs_lock *)(tl->addr))->pid_last_reader);
356 a_result->lock.pid_writer =
357 MyPidxx2Pid(((struct afs_lock *)(tl->addr))->pid_writer);
358 a_result->lock.src_indicator =
359 ((struct afs_lock *)(tl->addr))->src_indicator;
361 a_result->lock.pid_last_reader = 0;
362 a_result->lock.pid_writer = 0;
363 a_result->lock.src_indicator = 0;
374 } /*SRXAFSCB_GetLock */
377 /*------------------------------------------------------------------------
378 * static ClearCallBack
381 * Clear out callback information for the specified file, or
382 * even a whole volume. Used to worry about callback was from
383 * within the particular cell or not. Now we don't bother with
384 * that anymore; it's not worth the time.
387 * a_conn : Ptr to Rx connection involved.
388 * a_fid : Ptr to AFS fid being cleared.
394 * Nothing interesting.
399 Appears to need to be called with GLOCK held, as the icl_Event4 stuff asserts otherwise
401 *------------------------------------------------------------------------*/
404 ClearCallBack(struct rx_connection *a_conn,
405 struct AFSFid *a_fid)
409 struct VenusFid localFid;
411 #ifdef AFS_DARWIN80_ENV
415 AFS_STATCNT(ClearCallBack);
420 * XXXX Don't hold any server locks here because of callback protocol XXX
423 localFid.Fid.Volume = a_fid->Volume;
424 localFid.Fid.Vnode = a_fid->Vnode;
425 localFid.Fid.Unique = a_fid->Unique;
428 * Volume ID of zero means don't do anything.
430 if (a_fid->Volume != 0) {
431 if (a_fid->Vnode == 0) {
432 struct afs_q *tq, *uq;
434 * Clear callback for the whole volume. Zip through the
435 * hash chain, nullifying entries whose volume ID matches.
438 ObtainReadLock(&afs_xvcache);
439 i = VCHashV(&localFid);
440 for (tq = afs_vhashTV[i].prev; tq != &afs_vhashTV[i]; tq = uq) {
443 if (tvc->f.fid.Fid.Volume == a_fid->Volume) {
444 tvc->callback = NULL;
446 localFid.Cell = tvc->f.fid.Cell;
447 tvc->dchint = NULL; /* invalidate hints */
448 if (tvc->f.states & CVInit) {
449 ReleaseReadLock(&afs_xvcache);
450 afs_osi_Sleep(&tvc->f.states);
453 #if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_LINUX20_ENV)
456 #ifdef AFS_DARWIN80_ENV
457 if (tvc->f.states & CDeadVnode) {
458 ReleaseReadLock(&afs_xvcache);
459 afs_osi_Sleep(&tvc->f.states);
475 ReleaseReadLock(&afs_xvcache);
476 afs_StaleVCacheFlags(tvc, 0, CUnique | CBulkFetching);
478 if (tvc->f.fid.Fid.Vnode & 1)
482 afs_Trace3(afs_iclSetp, CM_TRACE_CALLBACK,
483 ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32,
484 tvc->f.states, ICL_TYPE_INT32,
486 #ifdef AFS_DARWIN80_ENV
487 vnode_put(AFSTOV(tvc));
489 ObtainReadLock(&afs_xvcache);
492 } else if ((tvc->f.states & CMValid)
493 && (tvc->mvid.target_root->Fid.Volume == a_fid->Volume)) {
494 tvc->f.states &= ~CMValid;
496 localFid.Cell = tvc->mvid.target_root->Cell;
499 ReleaseReadLock(&afs_xvcache);
502 * XXXX Don't hold any locks here XXXX
504 tv = afs_FindVolume(&localFid, 0);
506 afs_ResetVolumeInfo(tv);
507 afs_PutVolume(tv, 0);
508 /* invalidate mtpoint? */
510 } /*Clear callbacks for whole volume */
513 * Clear callbacks just for the one file.
517 if (a_fid->Vnode & 1)
518 afs_oddCBs++; /*Could do this on volume basis, too */
520 afs_evenCBs++; /*A particular fid was specified */
522 ObtainReadLock(&afs_xvcache);
523 i = VCHash(&localFid);
524 for (tvc = afs_vhashT[i]; tvc; tvc = uvc) {
526 if (tvc->f.fid.Fid.Vnode == a_fid->Vnode
527 && tvc->f.fid.Fid.Volume == a_fid->Volume
528 && tvc->f.fid.Fid.Unique == a_fid->Unique) {
529 tvc->callback = NULL;
530 tvc->dchint = NULL; /* invalidate hints */
531 if (tvc->f.states & CVInit) {
532 ReleaseReadLock(&afs_xvcache);
533 afs_osi_Sleep(&tvc->f.states);
536 #if defined(AFS_SGI_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_LINUX20_ENV)
539 #ifdef AFS_DARWIN80_ENV
540 if (tvc->f.states & CDeadVnode) {
541 ReleaseReadLock(&afs_xvcache);
542 afs_osi_Sleep(&tvc->f.states);
558 ReleaseReadLock(&afs_xvcache);
559 afs_StaleVCacheFlags(tvc, 0, CUnique | CBulkFetching);
560 afs_Trace3(afs_iclSetp, CM_TRACE_CALLBACK,
561 ICL_TYPE_POINTER, tvc, ICL_TYPE_INT32,
562 tvc->f.states, ICL_TYPE_LONG, 0);
564 lastCallBack_vnode = afid->Vnode;
565 lastCallBack_dv = tvc->mstat.DataVersion.low;
566 osi_GetuTime(&lastCallBack_time);
568 #ifdef AFS_DARWIN80_ENV
569 vnode_put(AFSTOV(tvc));
571 ObtainReadLock(&afs_xvcache);
575 } /*Walk through hash table */
576 ReleaseReadLock(&afs_xvcache);
577 } /*Clear callbacks for one file */
580 /*Fid has non-zero volume ID */
582 * Always return a predictable value.
589 /*------------------------------------------------------------------------
590 * EXPORTED SRXAFSCB_CallBack
593 * Routine called by the server-side callback RPC interface to
594 * implement passing in callback information.
598 * a_call : Ptr to Rx call on which this request came in.
599 * a_fids : Ptr to array of fids involved.
600 * a_callbacks : Ptr to matching callback info for the fids.
606 * Nothing interesting.
610 *------------------------------------------------------------------------*/
613 SRXAFSCB_CallBack(struct rx_call *a_call, struct AFSCBFids *a_fids,
614 struct AFSCBs *a_callbacks)
616 int i; /*Loop variable */
617 struct AFSFid *tfid; /*Ptr to current fid */
618 struct rx_connection *tconn; /*Call's connection */
624 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_CALLBACK);
626 AFS_STATCNT(SRXAFSCB_CallBack);
627 if (!(tconn = rx_ConnectionOf(a_call)))
629 tfid = (struct AFSFid *)a_fids->AFSCBFids_val;
632 * For now, we ignore callbacks, since the File Server only *breaks*
633 * callbacks at present.
635 for (i = 0; i < a_fids->AFSCBFids_len; i++)
636 ClearCallBack(tconn, &tfid[i]);
644 } /*SRXAFSCB_CallBack */
647 /*------------------------------------------------------------------------
648 * EXPORTED SRXAFSCB_Probe
651 * Routine called by the server-side callback RPC interface to
652 * implement ``probing'' the Cache Manager, just making sure it's
656 * a_call : Ptr to Rx call on which this request came in.
662 * Nothing interesting.
666 *------------------------------------------------------------------------*/
669 SRXAFSCB_Probe(struct rx_call *a_call)
675 AFS_STATCNT(SRXAFSCB_Probe);
677 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_PROBE);
684 } /*SRXAFSCB_Probe */
687 /*------------------------------------------------------------------------
688 * EXPORTED SRXAFSCB_InitCallBackState
691 * Routine called by the server-side callback RPC interface to
692 * implement clearing all callbacks from this host.
695 * a_call : Ptr to Rx call on which this request came in.
701 * Nothing interesting.
705 *------------------------------------------------------------------------*/
708 SRXAFSCB_InitCallBackState(struct rx_call *a_call)
712 struct rx_connection *tconn;
713 struct rx_peer *peer;
720 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_INITCALLBACKSTATE);
721 AFS_STATCNT(SRXAFSCB_InitCallBackState);
724 * Find the address of the host making this call
726 if ((tconn = rx_ConnectionOf(a_call)) && (peer = rx_PeerOf(tconn))) {
729 afs_oddCBs++; /*Including any missed via create race */
730 afs_evenCBs++; /*Including any missed via create race */
732 ts = afs_FindServer(rx_HostOf(peer), rx_PortOf(peer), (afsUUID *) 0,
735 for (i = 0; i < VCSIZE; i++)
736 for (tvc = afs_vhashT[i]; tvc; tvc = tvc->hnext) {
737 if (tvc->callback == ts) {
738 afs_StaleVCacheFlags(tvc, AFS_STALEVC_NODNLC |
740 CUnique | CBulkFetching);
744 /* capabilities need be requested again */
745 ts->flags &= ~SCAPS_KNOWN;
750 /* find any volumes residing on this server and flush their state */
755 for (i = 0; i < NVOLS; i++)
756 for (tv = afs_volumes[i]; tv; tv = tv->next) {
757 for (j = 0; j < AFS_MAXHOSTS; j++)
758 if (tv->serverHost[j] == ts)
759 afs_ResetVolumeInfo(tv);
762 osi_dnlc_purge(); /* may be a little bit extreme */
771 } /*SRXAFSCB_InitCallBackState */
774 /*------------------------------------------------------------------------
775 * EXPORTED SRXAFSCB_XStatsVersion
778 * Routine called by the server-side callback RPC interface to
779 * implement pulling out the xstat version number for the Cache
783 * a_versionP : Ptr to the version number variable to set.
789 * Nothing interesting.
793 *------------------------------------------------------------------------*/
796 SRXAFSCB_XStatsVersion(struct rx_call *a_call, afs_int32 * a_versionP)
803 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_XSTATSVERSION);
805 *a_versionP = AFSCB_XSTAT_VERSION;
812 } /*SRXAFSCB_XStatsVersion */
815 /*------------------------------------------------------------------------
816 * EXPORTED SRXAFSCB_GetXStats
819 * Routine called by the server-side callback RPC interface to
820 * implement getting the given data collection from the extended
821 * Cache Manager statistics.
824 * a_call : Ptr to Rx call on which this request came in.
825 * a_clientVersionNum : Client version number.
826 * a_opCode : Desired operation.
827 * a_serverVersionNumP : Ptr to version number to set.
828 * a_timeP : Ptr to time value (seconds) to set.
829 * a_dataArray : Ptr to variable array structure to return
836 * Nothing interesting.
840 *------------------------------------------------------------------------*/
843 SRXAFSCB_GetXStats(struct rx_call *a_call, afs_int32 a_clientVersionNum,
844 afs_int32 a_collectionNumber, afs_int32 * a_srvVersionNumP,
845 afs_int32 * a_timeP, AFSCB_CollData * a_dataP)
847 int code; /*Return value */
848 afs_int32 *dataBuffP; /*Ptr to data to be returned */
849 afs_int32 dataBytes; /*Bytes in data buffer */
854 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_GETXSTATS);
857 * Record the time of day and the server version number.
859 *a_srvVersionNumP = AFSCB_XSTAT_VERSION;
860 *a_timeP = osi_Time();
863 * Stuff the appropriate data in there (assume victory)
869 * We're not keeping stats, so just return successfully with
872 a_dataP->AFSCB_CollData_len = 0;
873 a_dataP->AFSCB_CollData_val = NULL;
875 switch (a_collectionNumber) {
876 case AFSCB_XSTATSCOLL_CALL_INFO:
878 * Pass back all the call-count-related data.
880 * >>> We are forced to allocate a separate area in which to
881 * >>> put this stuff in by the RPC stub generator, since it
882 * >>> will be freed at the tail end of the server stub code.
884 dataBytes = sizeof(struct afs_CMStats);
885 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
886 osi_Assert(dataBuffP != NULL);
887 memcpy((char *)dataBuffP, (char *)&afs_cmstats, dataBytes);
888 a_dataP->AFSCB_CollData_len = dataBytes >> 2;
889 a_dataP->AFSCB_CollData_val = dataBuffP;
892 case AFSCB_XSTATSCOLL_PERF_INFO:
894 * Update and then pass back all the performance-related data.
895 * Note: the only performance fields that need to be computed
896 * at this time are the number of accesses for this collection
897 * and the current server record info.
899 * >>> We are forced to allocate a separate area in which to
900 * >>> put this stuff in by the RPC stub generator, since it
901 * >>> will be freed at the tail end of the server stub code.
903 afs_stats_cmperf.numPerfCalls++;
905 dataBytes = sizeof(afs_stats_cmperf);
906 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
907 osi_Assert(dataBuffP != NULL);
908 memcpy((char *)dataBuffP, (char *)&afs_stats_cmperf, dataBytes);
909 a_dataP->AFSCB_CollData_len = dataBytes >> 2;
910 a_dataP->AFSCB_CollData_val = dataBuffP;
913 case AFSCB_XSTATSCOLL_FULL_PERF_INFO:
915 * Pass back the full range of performance and statistical
916 * data available. We have to bring the normal performance
917 * data collection up to date, then copy that data into
918 * the full collection.
920 * >>> We are forced to allocate a separate area in which to
921 * >>> put this stuff in by the RPC stub generator, since it
922 * >>> will be freed at the tail end of the server stub code.
924 afs_stats_cmperf.numPerfCalls++;
926 memcpy((char *)(&(afs_stats_cmfullperf.perf)),
927 (char *)(&afs_stats_cmperf), sizeof(struct afs_stats_CMPerf));
928 afs_stats_cmfullperf.numFullPerfCalls++;
930 dataBytes = sizeof(afs_stats_cmfullperf);
931 dataBuffP = (afs_int32 *) afs_osi_Alloc(dataBytes);
932 osi_Assert(dataBuffP != NULL);
933 memcpy((char *)dataBuffP, (char *)(&afs_stats_cmfullperf), dataBytes);
934 a_dataP->AFSCB_CollData_len = dataBytes >> 2;
935 a_dataP->AFSCB_CollData_val = dataBuffP;
940 * Illegal collection number.
942 a_dataP->AFSCB_CollData_len = 0;
943 a_dataP->AFSCB_CollData_val = NULL;
945 } /*Switch on collection number */
946 #endif /* AFS_NOSTATS */
954 } /*SRXAFSCB_GetXStats */
957 /*------------------------------------------------------------------------
958 * EXPORTED afs_RXCallBackServer
961 * Body of the thread supporting callback services.
970 * Nothing interesting.
974 *------------------------------------------------------------------------*/
977 afs_RXCallBackServer(void)
979 AFS_STATCNT(afs_RXCallBackServer);
984 afs_osi_Sleep(&afs_server);
988 * Donate this process to Rx.
993 } /*afs_RXCallBackServer */
996 /*------------------------------------------------------------------------
997 * EXPORTED shutdown_CB
1000 * Zero out important Cache Manager data structures.
1009 * Nothing interesting.
1013 *------------------------------------------------------------------------*/
1018 AFS_STATCNT(shutdown_CB);
1020 if (afs_cold_shutdown) {
1021 afs_oddCBs = afs_evenCBs = afs_allCBs = afs_allZaps = afs_oddZaps =
1022 afs_evenZaps = afs_connectBacks = 0;
1029 /*------------------------------------------------------------------------
1030 * EXPORTED SRXAFSCB_InitCallBackState2
1033 * This routine was used in the AFS 3.5 beta release, but not anymore.
1034 * It has since been replaced by SRXAFSCB_InitCallBackState3.
1037 * a_call : Ptr to Rx call on which this request came in.
1040 * RXGEN_OPCODE (always).
1043 * Nothing interesting.
1047 *------------------------------------------------------------------------*/
1050 SRXAFSCB_InitCallBackState2(struct rx_call *a_call,
1051 struct interfaceAddr *addr)
1053 return RXGEN_OPCODE;
1056 /*------------------------------------------------------------------------
1057 * EXPORTED SRXAFSCB_WhoAreYou
1060 * Routine called by the server-side callback RPC interface to
1061 * obtain a unique identifier for the client. The server uses
1062 * this identifier to figure out whether or not two RX connections
1063 * are from the same client, and to find out which addresses go
1064 * with which clients.
1067 * a_call : Ptr to Rx call on which this request came in.
1068 * addr: Ptr to return the list of interfaces for this client.
1074 * Nothing interesting.
1078 *------------------------------------------------------------------------*/
1081 SRXAFSCB_WhoAreYou(struct rx_call *a_call, struct interfaceAddr *addr)
1088 AFS_STATCNT(SRXAFSCB_WhoAreYou);
1090 memset(addr, 0, sizeof(*addr));
1092 ObtainReadLock(&afs_xinterface);
1094 /* return all network interface addresses */
1095 addr->numberOfInterfaces = afs_cb_interface.numberOfInterfaces;
1096 addr->uuid = afs_cb_interface.uuid;
1097 for (i = 0; i < afs_cb_interface.numberOfInterfaces; i++) {
1098 addr->addr_in[i] = ntohl(afs_cb_interface.addr_in[i]);
1099 addr->subnetmask[i] = ntohl(afs_cb_interface.subnetmask[i]);
1100 addr->mtu[i] = ntohl(afs_cb_interface.mtu[i]);
1103 ReleaseReadLock(&afs_xinterface);
1111 /*------------------------------------------------------------------------
1112 * EXPORTED SRXAFSCB_InitCallBackState3
1115 * Routine called by the server-side callback RPC interface to
1116 * implement clearing all callbacks from this host.
1119 * a_call : Ptr to Rx call on which this request came in.
1125 * Nothing interesting.
1129 *------------------------------------------------------------------------*/
1132 SRXAFSCB_InitCallBackState3(struct rx_call *a_call, afsUUID * a_uuid)
1137 * TBD: Lookup the server by the UUID instead of its IP address.
1139 code = SRXAFSCB_InitCallBackState(a_call);
1145 /*------------------------------------------------------------------------
1146 * EXPORTED SRXAFSCB_ProbeUuid
1149 * Routine called by the server-side callback RPC interface to
1150 * implement ``probing'' the Cache Manager, just making sure it's
1151 * still there is still the same client it used to be.
1154 * a_call : Ptr to Rx call on which this request came in.
1155 * a_uuid : Ptr to UUID that must match the client's UUID.
1158 * 0 if a_uuid matches the UUID for this client
1159 * Non-zero otherwize
1162 * Nothing interesting.
1166 *------------------------------------------------------------------------*/
1169 SRXAFSCB_ProbeUuid(struct rx_call *a_call, afsUUID * a_uuid)
1175 AFS_STATCNT(SRXAFSCB_Probe);
1177 XSTATS_START_CMTIME(AFS_STATS_CM_RPCIDX_PROBE);
1178 if (!afs_uuid_equal(a_uuid, &afs_cb_interface.uuid))
1179 code = 1; /* failure */
1188 /*------------------------------------------------------------------------
1189 * EXPORTED SRXAFSCB_GetServerPrefs
1192 * Routine to list server preferences used by this client.
1195 * a_call : Ptr to Rx call on which this request came in.
1196 * a_index : Input server index
1197 * a_srvr_addr : Output server address in host byte order
1198 * (0xffffffff on last server)
1199 * a_srvr_rank : Output server rank
1205 * Nothing interesting.
1209 *------------------------------------------------------------------------*/
1212 SRXAFSCB_GetServerPrefs(struct rx_call *a_call, afs_int32 a_index,
1213 afs_int32 * a_srvr_addr, afs_int32 * a_srvr_rank)
1219 AFS_STATCNT(SRXAFSCB_GetServerPrefs);
1221 ObtainReadLock(&afs_xserver);
1223 /* Search the hash table for the server with this index */
1224 *a_srvr_addr = 0xffffffff;
1225 *a_srvr_rank = 0xffffffff;
1226 for (i = 0, j = 0; j < NSERVERS && i <= a_index; j++) {
1227 for (sa = afs_srvAddrs[j]; sa && i <= a_index; sa = sa->next_bkt, i++) {
1229 *a_srvr_addr = ntohl(sa->sa_ip);
1230 *a_srvr_rank = sa->sa_iprank;
1235 ReleaseReadLock(&afs_xserver);
1243 /*------------------------------------------------------------------------
1244 * EXPORTED SRXAFSCB_GetCellServDB
1247 * Routine to list cells configured for this client
1250 * a_call : Ptr to Rx call on which this request came in.
1251 * a_index : Input cell index
1252 * a_name : Output cell name ("" on last cell)
1253 * a_hosts : Output cell database servers in host byte order.
1259 * Nothing interesting.
1263 *------------------------------------------------------------------------*/
1266 SRXAFSCB_GetCellServDB(struct rx_call *a_call, afs_int32 a_index,
1267 char **a_name, serverList * a_hosts)
1271 char *t_name, *p_name = NULL;
1274 AFS_STATCNT(SRXAFSCB_GetCellServDB);
1276 tcell = afs_GetCellByIndex(a_index, READ_LOCK);
1280 a_hosts->serverList_val = 0;
1281 a_hosts->serverList_len = 0;
1283 p_name = tcell->cellName;
1284 for (j = 0; j < AFSMAXCELLHOSTS && tcell->cellHosts[j]; j++);
1286 a_hosts->serverList_val = afs_osi_Alloc(j * sizeof(afs_int32));
1287 osi_Assert(a_hosts->serverList_val != NULL);
1288 a_hosts->serverList_len = j;
1289 for (j = 0; j < AFSMAXCELLHOSTS && tcell->cellHosts[j]; j++)
1290 a_hosts->serverList_val[j] =
1291 ntohl(tcell->cellHosts[j]->addr->sa_ip);
1292 afs_PutCell(tcell, READ_LOCK);
1295 t_name = afs_osi_Alloc(i + 1);
1296 if (t_name == NULL) {
1298 afs_osi_Free(a_hosts->serverList_val, (j * sizeof(afs_int32)));
1305 memcpy(t_name, p_name, i);
1314 /*------------------------------------------------------------------------
1315 * EXPORTED SRXAFSCB_GetLocalCell
1318 * Routine to return name of client's local cell
1321 * a_call : Ptr to Rx call on which this request came in.
1322 * a_name : Output cell name
1328 * Nothing interesting.
1332 *------------------------------------------------------------------------*/
1335 SRXAFSCB_GetLocalCell(struct rx_call *a_call, char **a_name)
1339 char *t_name, *p_name = NULL;
1342 AFS_STATCNT(SRXAFSCB_GetLocalCell);
1344 /* Search the list for the primary cell. Cell number 1 is only
1345 * the primary cell is when no other cell is explicitly marked as
1346 * the primary cell. */
1347 tcell = afs_GetPrimaryCell(READ_LOCK);
1349 p_name = tcell->cellName;
1351 plen = strlen(p_name);
1354 t_name = afs_osi_Alloc(plen + 1);
1355 if (t_name == NULL) {
1357 afs_PutCell(tcell, READ_LOCK);
1362 t_name[plen] = '\0';
1364 memcpy(t_name, p_name, plen);
1370 afs_PutCell(tcell, READ_LOCK);
1376 * afs_MarshallCacheConfig - marshall client cache configuration
1380 * IN callerVersion - the rpc stat version of the caller.
1382 * IN config - client cache configuration.
1384 * OUT ptr - buffer where configuration is marshalled.
1391 afs_MarshallCacheConfig(afs_uint32 callerVersion, cm_initparams_v1 * config,
1394 AFS_STATCNT(afs_MarshallCacheConfig);
1396 * We currently only support version 1.
1398 *(ptr++) = config->nChunkFiles;
1399 *(ptr++) = config->nStatCaches;
1400 *(ptr++) = config->nDataCaches;
1401 *(ptr++) = config->nVolumeCaches;
1402 *(ptr++) = config->firstChunkSize;
1403 *(ptr++) = config->otherChunkSize;
1404 *(ptr++) = config->cacheSize;
1405 *(ptr++) = config->setTime;
1406 *(ptr++) = config->memCache;
1410 /*------------------------------------------------------------------------
1411 * EXPORTED SRXAFSCB_GetCacheConfig
1414 * Routine to return parameters used to initialize client cache.
1415 * Client may request any format version. Server may not return
1416 * format version greater than version requested by client.
1419 * a_call: Ptr to Rx call on which this request came in.
1420 * callerVersion: Data format version desired by the client.
1421 * serverVersion: Data format version of output data.
1422 * configCount: Number bytes allocated for output data.
1423 * config: Client cache configuration.
1429 * Nothing interesting.
1433 *------------------------------------------------------------------------*/
1436 SRXAFSCB_GetCacheConfig(struct rx_call *a_call, afs_uint32 callerVersion,
1437 afs_uint32 * serverVersion, afs_uint32 * configCount,
1438 cacheConfig * config)
1440 afs_uint32 *t_config;
1442 cm_initparams_v1 cm_config;
1445 AFS_STATCNT(SRXAFSCB_GetCacheConfig);
1448 * Currently only support version 1
1450 allocsize = sizeof(cm_initparams_v1);
1451 t_config = afs_osi_Alloc(allocsize);
1452 if (t_config == NULL) {
1457 cm_config.nChunkFiles = cm_initParams.cmi_nChunkFiles;
1458 cm_config.nStatCaches = cm_initParams.cmi_nStatCaches;
1459 cm_config.nDataCaches = cm_initParams.cmi_nDataCaches;
1460 cm_config.nVolumeCaches = cm_initParams.cmi_nVolumeCaches;
1461 cm_config.firstChunkSize = cm_initParams.cmi_firstChunkSize;
1462 cm_config.otherChunkSize = cm_initParams.cmi_otherChunkSize;
1463 cm_config.cacheSize = cm_initParams.cmi_cacheSize;
1464 cm_config.setTime = cm_initParams.cmi_setTime;
1465 cm_config.memCache = cm_initParams.cmi_memCache;
1467 afs_MarshallCacheConfig(callerVersion, &cm_config, t_config);
1469 *serverVersion = AFS_CLIENT_RETRIEVAL_FIRST_EDITION;
1470 *configCount = allocsize;
1471 config->cacheConfig_val = t_config;
1472 config->cacheConfig_len = allocsize / sizeof(afs_uint32);
1479 /*------------------------------------------------------------------------
1480 * EXPORTED SRXAFSCB_FetchData
1483 * Routine to do third party move from a remioserver to the original
1484 * issuer of an ArchiveData request. Presently supported only by the
1485 * "fs" command, not by the AFS client.
1488 * rxcall: Ptr to Rx call on which this request came in.
1489 * Fid: pointer to AFSFid structure.
1490 * Fd: File descriptor inside fs command.
1491 * Position: Offset in the file.
1492 * Length: Data length to transfer.
1493 * TotalLength: Pointer to total file length field
1499 * Nothing interesting.
1502 *------------------------------------------------------------------------*/
1504 SRXAFSCB_FetchData(struct rx_call *rxcall, struct AFSFid *Fid, afs_int32 Fd,
1505 afs_int64 Position, afs_int64 Length,
1506 afs_int64 * TotalLength)
1511 /*------------------------------------------------------------------------
1512 * EXPORTED SRXAFSCB_StoreData
1515 * Routine to do third party move from a remioserver to the original
1516 * issuer of a RetrieveData request. Presently supported only by the
1517 * "fs" command, not by the AFS client.
1520 * rxcall: Ptr to Rx call on which this request came in.
1521 * Fid: pointer to AFSFid structure.
1522 * Fd: File descriptor inside fs command.
1523 * Position: Offset in the file.
1524 * Length: Data length to transfer.
1525 * TotalLength: Pointer to total file length field
1531 * Nothing interesting.
1535 *------------------------------------------------------------------------*/
1537 SRXAFSCB_StoreData(struct rx_call *rxcall, struct AFSFid *Fid, afs_int32 Fd,
1538 afs_int64 Position, afs_int64 Length,
1539 afs_int64 * TotalLength)
1544 /*------------------------------------------------------------------------
1545 * EXPORTED SRXAFSCB_GetCellByNum
1548 * Routine to get information about a cell specified by its
1549 * cell number (returned by GetCE/GetCE64).
1552 * a_call : Ptr to Rx call on which this request came in.
1553 * a_cellnum : Input cell number
1554 * a_name : Output cell name (one zero byte when no such cell).
1555 * a_hosts : Output cell database servers in host byte order.
1561 * Nothing interesting.
1565 *------------------------------------------------------------------------*/
1568 SRXAFSCB_GetCellByNum(struct rx_call *a_call, afs_int32 a_cellnum,
1569 char **a_name, serverList * a_hosts)
1575 AFS_STATCNT(SRXAFSCB_GetCellByNum);
1577 a_hosts->serverList_val = 0;
1578 a_hosts->serverList_len = 0;
1580 tcell = afs_GetCellStale(a_cellnum, READ_LOCK);
1582 *a_name = afs_strdup("");
1587 ObtainReadLock(&tcell->lock);
1588 *a_name = afs_strdup(tcell->cellName);
1590 for (sn = 0; sn < AFSMAXCELLHOSTS && tcell->cellHosts[sn]; sn++);
1591 a_hosts->serverList_len = sn;
1592 a_hosts->serverList_val = afs_osi_Alloc(sn * sizeof(afs_int32));
1593 osi_Assert(a_hosts->serverList_val != NULL);
1595 for (i = 0; i < sn; i++)
1596 a_hosts->serverList_val[i] = ntohl(tcell->cellHosts[i]->addr->sa_ip);
1597 ReleaseReadLock(&tcell->lock);
1598 afs_PutCell(tcell, READ_LOCK);
1605 SRXAFSCB_TellMeAboutYourself(struct rx_call *a_call,
1606 struct interfaceAddr *addr,
1607 Capabilities * capabilities)
1611 afs_uint32 *dataBuffP;
1612 afs_int32 dataBytes;
1616 AFS_STATCNT(SRXAFSCB_WhoAreYou);
1618 ObtainReadLock(&afs_xinterface);
1620 /* return all network interface addresses */
1621 addr->numberOfInterfaces = afs_cb_interface.numberOfInterfaces;
1622 addr->uuid = afs_cb_interface.uuid;
1623 for (i = 0; i < afs_cb_interface.numberOfInterfaces; i++) {
1624 addr->addr_in[i] = ntohl(afs_cb_interface.addr_in[i]);
1625 addr->subnetmask[i] = ntohl(afs_cb_interface.subnetmask[i]);
1626 addr->mtu[i] = ntohl(afs_cb_interface.mtu[i]);
1629 ReleaseReadLock(&afs_xinterface);
1633 dataBytes = 1 * sizeof(afs_uint32);
1634 dataBuffP = afs_osi_Alloc(dataBytes);
1635 osi_Assert(dataBuffP != NULL);
1636 dataBuffP[0] = CLIENT_CAPABILITY_ERRORTRANS;
1637 capabilities->Capabilities_len = dataBytes / sizeof(afs_uint32);
1638 capabilities->Capabilities_val = dataBuffP;
1644 #if 0 && defined(AFS_LINUX24_ENV)
1645 extern struct vcache *afs_globalVp;
1647 int recurse_dcache_parent(parent, a_index, addr, inode, flags, time, fileName)
1648 struct dentry * parent;
1656 struct dentry *this_parent = parent;
1657 struct list_head *next;
1659 struct dentry *dentry;
1662 next = this_parent->d_subdirs.next;
1664 while (next != &this_parent->d_subdirs) {
1665 struct list_head *tmp = next;
1666 dentry = list_entry(tmp, struct dentry, d_child);
1672 * Descend a level if the d_subdirs list is non-empty.
1674 if (!list_empty(&dentry->d_subdirs)) {
1675 this_parent = dentry;
1680 * All done at this level ... ascend and resume the search.
1682 if (this_parent != parent) {
1683 next = this_parent->d_child.next;
1684 this_parent = this_parent->d_parent;
1690 if (d_unhashed(dentry))
1695 *fileName = afs_strdup(dentry->d_name.name?dentry->d_name.name:"");
1696 *inode = ITOAFS(dentry->d_inode);
1697 *addr = atomic_read(&(dentry)->d_count);
1698 *time = dentry->d_time;
1707 SRXAFSCB_GetDE(struct rx_call *a_call, afs_int32 a_index, afs_int32 *addr,
1708 afs_int32 *inode, afs_int32 *flags, afs_int32 *time,
1710 { /*SRXAFSCB_GetDE*/
1711 int code = 0; /*Return code*/
1712 #if 0 && defined(AFS_LINUX24_ENV)
1713 int i; /*Loop variable*/
1714 struct vcache *tvc = afs_globalVp;
1715 struct dentry *dentry;
1716 struct list_head *cur, *head = &(AFSTOI(tvc))->i_dentry;
1718 #ifdef RX_ENABLE_LOCKS
1720 #endif /* RX_ENABLE_LOCKS */
1722 #if defined(AFS_LINUX24_ENV)
1723 spin_lock(&dcache_lock);
1727 while ((cur = cur->next) != head) {
1728 dentry = list_entry(cur, struct dentry, d_alias);
1730 dget_locked(dentry);
1732 #if defined(AFS_LINUX24_ENV)
1733 spin_unlock(&dcache_lock);
1739 if (recurse_dcache_parent(dentry, a_index, addr, inode, flags, time, fileName) == 0) {
1750 *fileName = afs_strdup("");
1754 if (d_unhashed(dentry))
1759 *fileName = afs_strdup(dentry->d_name.name?dentry->d_name.name:"");
1760 *inode = ITOAFS(dentry->d_inode);
1761 *addr = atomic_read(&(dentry)->d_count);
1762 *time = dentry->d_time;
1769 #ifdef RX_ENABLE_LOCKS
1771 #endif /* RX_ENABLE_LOCKS */
1775 } /*SRXAFSCB_GetDE*/