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 <afsconfig.h>
11 #include "afs/param.h"
16 #include "afs/sysincludes.h" /* Standard vendor system headers */
17 #include "afsincludes.h" /* Afs-based standard headers */
18 #include "afs/afs_stats.h"
19 #include "rx/rx_globals.h"
20 #if !defined(UKERNEL) && !defined(AFS_LINUX20_ENV)
23 #include "h/hashing.h"
25 #if !defined(AFS_HPUX110_ENV) && !defined(AFS_DARWIN60_ENV)
26 #include "netinet/in_var.h"
28 #endif /* !defined(UKERNEL) */
29 #ifdef AFS_LINUX22_ENV
30 #include "h/smp_lock.h"
34 #if defined(AFS_AIX_ENV) || defined(AFS_SGI_ENV) || defined(AFS_SUN_ENV) || defined(AFS_HPUX_ENV)
35 #define AFS_MINBUFFERS 100
37 #define AFS_MINBUFFERS 50
41 afs_int32 hosts[MAXCELLHOSTS];
45 char afs_zeros[AFS_ZEROS];
46 char afs_rootVolumeName[64] = "";
47 struct afs_icl_set *afs_iclSetp = (struct afs_icl_set *)0;
48 struct afs_icl_set *afs_iclLongTermSetp = (struct afs_icl_set *)0;
49 afs_uint32 rx_bindhost;
51 #if defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
52 kmutex_t afs_global_lock;
53 kmutex_t afs_rxglobal_lock;
56 #if defined(AFS_SGI_ENV) && !defined(AFS_SGI64_ENV)
57 long afs_global_owner;
60 #if defined(AFS_OSF_ENV)
61 simple_lock_data_t afs_global_lock;
64 #if defined(AFS_DARWIN_ENV)
65 struct lock__bsd__ afs_global_lock;
68 #if defined(AFS_XBSD_ENV) && !defined(AFS_FBSD50_ENV)
69 struct lock afs_global_lock;
70 struct proc *afs_global_owner;
73 struct mtx afs_global_mtx;
76 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV)
77 thread_t afs_global_owner;
78 #endif /* AFS_OSF_ENV */
80 #if defined(AFS_AIX41_ENV)
81 simple_lock_data afs_global_lock;
84 afs_int32 afs_initState = 0;
85 afs_int32 afs_termState = 0;
86 afs_int32 afs_setTime = 0;
87 int afs_cold_shutdown = 0;
88 char afs_SynchronousCloses = '\0';
89 static int afs_CB_Running = 0;
90 static int AFS_Running = 0;
91 static int afs_CacheInit_Done = 0;
92 static int afs_Go_Done = 0;
93 extern struct interfaceAddr afs_cb_interface;
94 static int afs_RX_Running = 0;
95 static int afs_InitSetup_done = 0;
97 afs_int32 afs_rx_deadtime = AFS_RXDEADTIME;
98 afs_int32 afs_rx_harddead = AFS_HARDDEADTIME;
101 Afscall_icl(long opcode, long p1, long p2, long p3, long p4, long *retval);
103 #if defined(AFS_HPUX_ENV)
104 extern int afs_vfs_mount();
105 #endif /* defined(AFS_HPUX_ENV) */
107 /* This is code which needs to be called once when the first daemon enters
108 * the client. A non-zero return means an error and AFS should not start.
111 afs_InitSetup(int preallocs)
113 extern void afs_InitStats();
116 if (afs_InitSetup_done)
121 * Set up all the AFS statistics variables. This should be done
122 * exactly once, and it should be done here, the first resource-setting
123 * routine to be called by the CM/RX.
126 #endif /* AFS_NOSTATS */
128 memset(afs_zeros, 0, AFS_ZEROS);
131 rx_extraPackets = AFS_NRXPACKETS; /* smaller # of packets */
132 code = rx_InitHost(rx_bindhost, htons(7001));
134 printf("AFS: RX failed to initialize %d).\n", code);
137 rx_SetRxDeadTime(afs_rx_deadtime);
138 /* resource init creates the services */
139 afs_ResourceInit(preallocs);
141 afs_InitSetup_done = 1;
142 afs_osi_Wakeup(&afs_InitSetup_done);
147 #if defined(AFS_LINUX24_ENV) && defined(COMPLETION_H_EXISTS)
148 struct afsd_thread_info {
150 struct completion *complete;
154 afsd_thread(void *rock)
156 struct afsd_thread_info *arg = rock;
157 unsigned long parm = arg->parm;
158 #ifdef SYS_SETPRIORITY_EXPORTED
159 int (*sys_setpriority) (int, int, int) = sys_call_table[__NR_setpriority];
161 #if defined(AFS_LINUX26_ENV)
166 /* doesn't do much, since we were forked from keventd, but
167 * does call mm_release, which wakes up our parent (since it
168 * used CLONE_VFORK) */
169 #if !defined(AFS_LINUX26_ENV)
172 afs_osi_MaskSignals();
174 case AFSOP_START_RXCALLBACK:
175 sprintf(current->comm, "afs_cbstart");
177 complete(arg->complete);
179 while (afs_RX_Running != 2)
180 afs_osi_Sleep(&afs_RX_Running);
181 sprintf(current->comm, "afs_callback");
182 afs_RXCallBackServer();
184 complete_and_exit(0, 0);
186 case AFSOP_START_AFS:
187 sprintf(current->comm, "afs_afsstart");
189 complete(arg->complete);
191 while (afs_initState < AFSOP_START_AFS)
192 afs_osi_Sleep(&afs_initState);
193 afs_initState = AFSOP_START_BKG;
194 afs_osi_Wakeup(&afs_initState);
195 sprintf(current->comm, "afsd");
198 complete_and_exit(0, 0);
200 case AFSOP_START_BKG:
201 sprintf(current->comm, "afs_bkgstart");
203 complete(arg->complete);
204 while (afs_initState < AFSOP_START_BKG)
205 afs_osi_Sleep(&afs_initState);
206 if (afs_initState < AFSOP_GO) {
207 afs_initState = AFSOP_GO;
208 afs_osi_Wakeup(&afs_initState);
210 sprintf(current->comm, "afs_background");
211 afs_BackgroundDaemon();
213 complete_and_exit(0, 0);
215 case AFSOP_START_TRUNCDAEMON:
216 sprintf(current->comm, "afs_trimstart");
218 complete(arg->complete);
219 while (afs_initState < AFSOP_GO)
220 afs_osi_Sleep(&afs_initState);
221 sprintf(current->comm, "afs_cachetrim");
222 afs_CacheTruncateDaemon();
224 complete_and_exit(0, 0);
227 sprintf(current->comm, "afs_checkserver");
229 complete(arg->complete);
230 afs_CheckServerDaemon();
232 complete_and_exit(0, 0);
234 case AFSOP_RXEVENT_DAEMON:
235 sprintf(current->comm, "afs_evtstart");
236 #ifdef SYS_SETPRIORITY_EXPORTED
237 sys_setpriority(PRIO_PROCESS, 0, -10);
239 #ifdef CURRENT_INCLUDES_NICE
244 complete(arg->complete);
245 while (afs_initState < AFSOP_START_BKG)
246 afs_osi_Sleep(&afs_initState);
247 sprintf(current->comm, "afs_rxevent");
248 afs_rxevent_daemon();
250 complete_and_exit(0, 0);
252 case AFSOP_RXLISTENER_DAEMON:
253 sprintf(current->comm, "afs_lsnstart");
254 #ifdef SYS_SETPRIORITY_EXPORTED
255 sys_setpriority(PRIO_PROCESS, 0, -10);
257 #ifdef CURRENT_INCLUDES_NICE
262 complete(arg->complete);
263 afs_initState = AFSOP_START_AFS;
264 afs_osi_Wakeup(&afs_initState);
266 afs_osi_Wakeup(&afs_RX_Running);
267 afs_osi_RxkRegister();
268 sprintf(current->comm, "afs_rxlistener");
271 complete_and_exit(0, 0);
274 printf("Unknown op %d in StartDaemon()\n", parm);
281 afsd_launcher(void *rock)
283 if (!kernel_thread(afsd_thread, rock, CLONE_VFORK | SIGCHLD))
284 printf("kernel_thread failed. afs startup will not complete\n");
288 afs_DaemonOp(long parm, long parm2, long parm3, long parm4, long parm5,
292 DECLARE_COMPLETION(c);
293 #if defined(AFS_LINUX26_ENV)
294 struct work_struct tq;
298 struct afsd_thread_info info;
299 if (parm == AFSOP_START_RXCALLBACK) {
302 } else if (parm == AFSOP_RXLISTENER_DAEMON) {
306 code = afs_InitSetup(parm2);
308 rx_enablePeerRPCStats();
311 rx_enableProcessRPCStats();
315 } else if (parm == AFSOP_START_AFS) {
318 } /* other functions don't need setup in the parent */
321 #if defined(AFS_LINUX26_ENV)
322 INIT_WORK(&tq, afsd_launcher, &info);
326 INIT_LIST_HEAD(&tq.list);
327 tq.routine = afsd_launcher;
332 /* we need to wait cause we passed stack pointers around.... */
333 wait_for_completion(&c);
338 /* leaving as is, probably will barf if we add prototypes here since it's likely being called
341 afs_syscall_call(parm, parm2, parm3, parm4, parm5, parm6)
342 long parm, parm2, parm3, parm4, parm5, parm6;
345 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
347 #else /* AFS_SGI61_ENV */
349 #endif /* AFS_SGI61_ENV */
351 AFS_STATCNT(afs_syscall_call);
353 if (!afs_suser(CRED()) && (parm != AFSOP_GETMTU)
354 && (parm != AFSOP_GETMASK)) {
355 /* only root can run this code */
358 if (!afs_suser(NULL) && (parm != AFSOP_GETMTU)
359 && (parm != AFSOP_GETMASK)) {
360 /* only root can run this code */
361 #if defined(KERNEL_HAVE_UERROR)
365 #if defined(AFS_OSF_ENV)
367 #else /* AFS_OSF_ENV */
369 #endif /* AFS_OSF_ENV */
374 #if defined(AFS_LINUX24_ENV) && defined(COMPLETION_H_EXISTS) && !defined(UKERNEL)
375 if (parm < AFSOP_ADDCELL || parm == AFSOP_RXEVENT_DAEMON
376 || parm == AFSOP_RXLISTENER_DAEMON) {
377 afs_DaemonOp(parm, parm2, parm3, parm4, parm5, parm6);
379 #else /* !(AFS_LINUX24_ENV && !UKERNEL) */
380 if (parm == AFSOP_START_RXCALLBACK) {
384 #ifndef RXK_LISTENER_ENV
385 code = afs_InitSetup(parm2);
387 #endif /* !RXK_LISTENER_ENV */
389 #ifdef RXK_LISTENER_ENV
390 while (afs_RX_Running != 2)
391 afs_osi_Sleep(&afs_RX_Running);
392 #else /* !RXK_LISTENER_ENV */
393 afs_initState = AFSOP_START_AFS;
394 afs_osi_Wakeup(&afs_initState);
395 #endif /* RXK_LISTENER_ENV */
397 afs_RXCallBackServer();
401 exit(CLD_EXITED, code);
402 #endif /* AFS_SGI_ENV */
404 #ifdef RXK_LISTENER_ENV
405 else if (parm == AFSOP_RXLISTENER_DAEMON) {
409 code = afs_InitSetup(parm2);
411 rx_enablePeerRPCStats();
414 rx_enableProcessRPCStats();
417 afs_initState = AFSOP_START_AFS;
418 afs_osi_Wakeup(&afs_initState);
421 afs_osi_Wakeup(&afs_RX_Running);
423 afs_osi_RxkRegister();
424 #endif /* !UKERNEL */
429 exit(CLD_EXITED, code);
430 #endif /* AFS_SGI_ENV */
432 #endif /* RXK_LISTENER_ENV */
433 else if (parm == AFSOP_START_AFS) {
438 while (afs_initState < AFSOP_START_AFS)
439 afs_osi_Sleep(&afs_initState);
441 afs_initState = AFSOP_START_BKG;
442 afs_osi_Wakeup(&afs_initState);
448 #endif /* AFS_SGI_ENV */
449 } else if (parm == AFSOP_START_CS) {
451 afs_CheckServerDaemon();
455 #endif /* AFS_SGI_ENV */
456 } else if (parm == AFSOP_START_BKG) {
457 while (afs_initState < AFSOP_START_BKG)
458 afs_osi_Sleep(&afs_initState);
459 if (afs_initState < AFSOP_GO) {
460 afs_initState = AFSOP_GO;
461 afs_osi_Wakeup(&afs_initState);
463 /* start the bkg daemon */
467 afs_BioDaemon(parm2);
469 #endif /* AFS_AIX32_ENV */
470 afs_BackgroundDaemon();
474 #endif /* AFS_SGI_ENV */
475 } else if (parm == AFSOP_START_TRUNCDAEMON) {
476 while (afs_initState < AFSOP_GO)
477 afs_osi_Sleep(&afs_initState);
478 /* start the bkg daemon */
480 afs_CacheTruncateDaemon();
484 #endif /* AFS_SGI_ENV */
486 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
487 else if (parm == AFSOP_RXEVENT_DAEMON) {
488 while (afs_initState < AFSOP_START_BKG)
489 afs_osi_Sleep(&afs_initState);
491 afs_rxevent_daemon();
495 #endif /* AFS_SGI_ENV */
497 #endif /* AFS_SUN5_ENV || RXK_LISTENER_ENV */
498 #endif /* AFS_LINUX24_ENV && !UKERNEL */
499 else if (parm == AFSOP_BASIC_INIT) {
502 while (!afs_InitSetup_done)
503 afs_osi_Sleep(&afs_InitSetup_done);
505 #if defined(AFS_SUN_ENV) || defined(AFS_SGI_ENV) || defined(AFS_HPUX_ENV) || defined(AFS_LINUX20_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
506 temp = AFS_MINBUFFERS; /* Should fix this soon */
508 /* number of 2k buffers we could get from all of the buffer space */
509 temp = ((afs_bufferpages * NBPG) >> 11);
510 temp = temp >> 2; /* don't take more than 25% (our magic parameter) */
511 if (temp < AFS_MINBUFFERS)
512 temp = AFS_MINBUFFERS; /* though we really should have this many */
515 afs_rootFid.Fid.Volume = 0;
517 } else if (parm == AFSOP_ADDCELL) {
518 /* add a cell. Parameter 2 is 8 hosts (in net order), parm 3 is the null-terminated
519 * name. Parameter 4 is the length of the name, including the null. Parm 5 is the
520 * home cell flag (0x1 bit) and the nosuid flag (0x2 bit) */
521 struct afsop_cell *tcell = afs_osi_Alloc(sizeof(struct afsop_cell));
523 AFS_COPYIN((char *)parm2, (char *)tcell->hosts, sizeof(tcell->hosts),
526 if (parm4 > sizeof(tcell->cellName))
529 AFS_COPYIN((char *)parm3, tcell->cellName, parm4, code);
531 afs_NewCell(tcell->cellName, tcell->hosts, parm5, NULL, 0,
535 afs_osi_Free(tcell, sizeof(struct afsop_cell));
536 } else if (parm == AFSOP_ADDCELL2) {
537 struct afsop_cell *tcell = afs_osi_Alloc(sizeof(struct afsop_cell));
538 char *tbuffer = osi_AllocSmallSpace(AFS_SMALLOCSIZ), *lcnamep = 0;
539 char *tbuffer1 = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
543 /* wait for basic init - XXX can't find any reason we need this? */
544 while (afs_initState < AFSOP_START_BKG)
545 afs_osi_Sleep(&afs_initState);
548 AFS_COPYIN((char *)parm2, (char *)tcell->hosts, sizeof(tcell->hosts),
551 AFS_COPYINSTR((char *)parm3, tbuffer1, AFS_SMALLOCSIZ,
555 AFS_COPYINSTR((char *)parm5, tbuffer, AFS_SMALLOCSIZ,
559 cflags |= CLinkedCell;
564 afs_NewCell(tbuffer1, tcell->hosts, cflags, lcnamep,
568 afs_osi_Free(tcell, sizeof(struct afsop_cell));
569 osi_FreeSmallSpace(tbuffer);
570 osi_FreeSmallSpace(tbuffer1);
571 } else if (parm == AFSOP_ADDCELLALIAS) {
574 * parm2 is the alias name
575 * parm3 is the real cell name
577 char *aliasName = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
578 char *cellName = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
580 AFS_COPYINSTR((char *)parm2, aliasName, AFS_SMALLOCSIZ, &bufferSize,
583 AFS_COPYINSTR((char *)parm3, cellName, AFS_SMALLOCSIZ,
586 afs_NewCellAlias(aliasName, cellName);
587 osi_FreeSmallSpace(aliasName);
588 osi_FreeSmallSpace(cellName);
589 } else if (parm == AFSOP_SET_THISCELL) {
592 * parm2 is the primary cell name
594 char *cell = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
596 AFS_COPYINSTR((char *)parm2, cell, AFS_SMALLOCSIZ, &bufferSize, code);
598 afs_SetPrimaryCell(cell);
599 osi_FreeSmallSpace(cell);
600 } else if (parm == AFSOP_CACHEINIT) {
601 struct afs_cacheParams cparms;
603 if (afs_CacheInit_Done)
606 AFS_COPYIN((char *)parm2, (caddr_t) & cparms, sizeof(cparms), code);
608 #if defined(KERNEL_HAVE_UERROR)
614 afs_CacheInit_Done = 1;
616 struct afs_icl_log *logp;
617 /* initialize the ICL system */
618 code = afs_icl_CreateLog("cmfx", 60 * 1024, &logp);
621 afs_icl_CreateSetWithFlags("cm", logp, NULL,
622 ICL_CRSET_FLAG_DEFAULT_OFF,
625 afs_icl_CreateSet("cmlongterm", logp, NULL,
626 &afs_iclLongTermSetp);
628 afs_setTime = cparms.setTimeFlag;
631 afs_CacheInit(cparms.cacheScaches, cparms.cacheFiles,
632 cparms.cacheBlocks, cparms.cacheDcaches,
633 cparms.cacheVolumes, cparms.chunkSize,
634 cparms.memCacheFlag, cparms.inodes, cparms.users);
636 } else if (parm == AFSOP_CACHEINODE) {
637 ino_t ainode = parm2;
638 /* wait for basic init */
639 while (afs_initState < AFSOP_START_BKG)
640 afs_osi_Sleep(&afs_initState);
644 ainode = (ainode << 32) | (parm3 & 0xffffffff);
646 code = afs_InitCacheFile(NULL, ainode);
647 } else if (parm == AFSOP_ROOTVOLUME) {
648 /* wait for basic init */
649 while (afs_initState < AFSOP_START_BKG)
650 afs_osi_Sleep(&afs_initState);
653 AFS_COPYINSTR((char *)parm2, afs_rootVolumeName,
654 sizeof(afs_rootVolumeName), &bufferSize, code);
655 afs_rootVolumeName[sizeof(afs_rootVolumeName) - 1] = 0;
658 } else if (parm == AFSOP_CACHEFILE || parm == AFSOP_CACHEINFO
659 || parm == AFSOP_VOLUMEINFO || parm == AFSOP_AFSLOG
660 || parm == AFSOP_CELLINFO) {
661 char *tbuffer = osi_AllocSmallSpace(AFS_SMALLOCSIZ);
664 AFS_COPYINSTR((char *)parm2, tbuffer, AFS_SMALLOCSIZ, &bufferSize,
667 osi_FreeSmallSpace(tbuffer);
671 tbuffer[AFS_SMALLOCSIZ - 1] = '\0'; /* null-terminate the name */
672 /* We have the cache dir copied in. Call the cache init routine */
673 if (parm == AFSOP_CACHEFILE)
674 code = afs_InitCacheFile(tbuffer, 0);
675 else if (parm == AFSOP_CACHEINFO)
676 code = afs_InitCacheInfo(tbuffer);
677 else if (parm == AFSOP_VOLUMEINFO)
678 code = afs_InitVolumeInfo(tbuffer);
679 else if (parm == AFSOP_CELLINFO)
680 code = afs_InitCellInfo(tbuffer);
682 osi_FreeSmallSpace(tbuffer);
683 } else if (parm == AFSOP_GO) {
684 /* the generic initialization calls come here. One parameter: should we do the
685 * set-time operation on this workstation */
689 while (afs_initState < AFSOP_GO)
690 afs_osi_Sleep(&afs_initState);
693 afs_osi_Wakeup(&afs_initState);
694 #if (!defined(AFS_NONFSTRANS) && !defined(AFS_DEC_ENV)) || defined(AFS_AIX_IAUTH_ENV)
695 afs_nfsclient_init();
697 printf("found %d non-empty cache files (%d%%).\n",
698 afs_stats_cmperf.cacheFilesReused,
699 (100 * afs_stats_cmperf.cacheFilesReused) /
700 (afs_stats_cmperf.cacheNumEntries ? afs_stats_cmperf.
701 cacheNumEntries : 1));
702 } else if (parm == AFSOP_ADVISEADDR) {
703 /* pass in the host address to the rx package */
705 afs_int32 count = parm2;
707 afs_osi_Alloc(sizeof(afs_int32) * AFS_MAX_INTERFACE_ADDR);
708 afs_int32 *maskbuffer =
709 afs_osi_Alloc(sizeof(afs_int32) * AFS_MAX_INTERFACE_ADDR);
710 afs_int32 *mtubuffer =
711 afs_osi_Alloc(sizeof(afs_int32) * AFS_MAX_INTERFACE_ADDR);
714 /* Bind, but only if there's only one address configured */
715 if ( count & 0x80000000) {
716 count &= ~0x80000000;
721 if (count > AFS_MAX_INTERFACE_ADDR) {
723 count = AFS_MAX_INTERFACE_ADDR;
726 AFS_COPYIN((char *)parm3, (char *)buffer, count * sizeof(afs_int32),
729 AFS_COPYIN((char *)parm4, (char *)maskbuffer,
730 count * sizeof(afs_int32), code);
732 AFS_COPYIN((char *)parm5, (char *)mtubuffer,
733 count * sizeof(afs_int32), code);
735 afs_cb_interface.numberOfInterfaces = count;
736 for (i = 0; i < count; i++) {
737 afs_cb_interface.addr_in[i] = buffer[i];
738 #ifdef AFS_USERSPACE_IP_ADDR
739 /* AFS_USERSPACE_IP_ADDR means we have no way of finding the
740 * machines IP addresses when in the kernel (the in_ifaddr
741 * struct is not available), so we pass the info in at
742 * startup. We also pass in the subnetmask and mtu size. The
743 * subnetmask is used when setting the rank:
744 * afsi_SetServerIPRank(); and the mtu size is used when
745 * finding the best mtu size. rxi_FindIfnet() is replaced
746 * with rxi_Findcbi().
748 afs_cb_interface.subnetmask[i] =
749 (parm4 ? maskbuffer[i] : 0xffffffff);
750 afs_cb_interface.mtu[i] = (parm5 ? mtubuffer[i] : htonl(1500));
753 afs_uuid_create(&afs_cb_interface.uuid);
754 rxi_setaddr(buffer[0]);
756 rx_bindhost = buffer[0];
758 rx_bindhost = htonl(INADDR_ANY);
760 afs_osi_Free(buffer, sizeof(afs_int32) * AFS_MAX_INTERFACE_ADDR);
761 afs_osi_Free(maskbuffer, sizeof(afs_int32) * AFS_MAX_INTERFACE_ADDR);
762 afs_osi_Free(mtubuffer, sizeof(afs_int32) * AFS_MAX_INTERFACE_ADDR);
765 else if (parm == AFSOP_NFSSTATICADDR) {
766 extern int (*nfs_rfsdisptab_v2) ();
767 nfs_rfsdisptab_v2 = (int (*)())parm2;
768 } else if (parm == AFSOP_NFSSTATICADDR2) {
769 extern int (*nfs_rfsdisptab_v2) ();
771 nfs_rfsdisptab_v2 = (int (*)())((parm2 << 32) | (parm3 & 0xffffffff));
773 nfs_rfsdisptab_v2 = (int (*)())(parm3 & 0xffffffff);
776 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
777 else if (parm == AFSOP_SBLOCKSTATICADDR2) {
778 extern int (*afs_sblockp) ();
779 extern void (*afs_sbunlockp) ();
781 afs_sblockp = (int (*)())((parm2 << 32) | (parm3 & 0xffffffff));
782 afs_sbunlockp = (void (*)())((parm4 << 32) | (parm5 & 0xffffffff));
784 afs_sblockp = (int (*)())(parm3 & 0xffffffff);
785 afs_sbunlockp = (void (*)())(parm5 & 0xffffffff);
788 #endif /* AFS_SGI62_ENV && !AFS_SGI65_ENV */
789 #endif /* AFS_SGI53_ENV */
790 else if (parm == AFSOP_SHUTDOWN) {
791 afs_cold_shutdown = 0;
793 afs_cold_shutdown = 1;
794 #ifndef AFS_DARWIN_ENV
795 if (afs_globalVFS != 0) {
796 afs_warn("AFS isn't unmounted yet! Call aborted\n");
801 } else if (parm == AFSOP_AFS_VFSMOUNT) {
803 vfsmount(parm2, parm3, parm4, parm5);
804 #else /* defined(AFS_HPUX_ENV) */
805 #if defined(KERNEL_HAVE_UERROR)
810 #endif /* defined(AFS_HPUX_ENV) */
811 } else if (parm == AFSOP_CLOSEWAIT) {
812 afs_SynchronousCloses = 'S';
813 } else if (parm == AFSOP_GETMTU) {
815 #if !defined(AFS_SUN5_ENV) && !defined(AFS_LINUX20_ENV)
816 #ifdef AFS_USERSPACE_IP_ADDR
818 i = rxi_Findcbi(parm2);
819 mtu = ((i == -1) ? htonl(1500) : afs_cb_interface.mtu[i]);
820 #else /* AFS_USERSPACE_IP_ADDR */
823 tifnp = rxi_FindIfnet(parm2, NULL); /* make iterative */
824 mtu = (tifnp ? tifnp->if_mtu : htonl(1500));
825 #endif /* else AFS_USERSPACE_IP_ADDR */
826 #endif /* !AFS_SUN5_ENV */
828 AFS_COPYOUT((caddr_t) & mtu, (caddr_t) parm3, sizeof(afs_int32),
831 /* this is disabled for now because I can't figure out how to get access
832 * to these kernel variables. It's only for supporting user-mode rx
833 * programs -- it makes a huge difference on the 220's in my testbed,
834 * though I don't know why. The bosserver does this with /etc/no, so it's
835 * being handled a different way for the servers right now. */
838 extern u_long sb_max_dflt;
841 if (sb_max_dflt < 131072) sb_max_dflt = 131072;
842 if (sb_max < 131072) sb_max = 131072;
845 #endif /* AFS_AIX32_ENV */
846 } else if (parm == AFSOP_GETMASK) { /* parm2 == addr in net order */
848 #if !defined(AFS_SUN5_ENV)
849 #ifdef AFS_USERSPACE_IP_ADDR
851 i = rxi_Findcbi(parm2);
853 mask = afs_cb_interface.subnetmask[i];
857 #else /* AFS_USERSPACE_IP_ADDR */
860 tifnp = rxi_FindIfnet(parm2, &mask); /* make iterative */
863 #endif /* else AFS_USERSPACE_IP_ADDR */
864 #endif /* !AFS_SUN5_ENV */
866 AFS_COPYOUT((caddr_t) & mask, (caddr_t) parm3, sizeof(afs_int32),
870 else if (parm == AFSOP_AFSDB_HANDLER) {
871 int sizeArg = (int)parm4;
872 int kmsgLen = sizeArg & 0xffff;
873 int cellLen = (sizeArg & 0xffff0000) >> 16;
874 afs_int32 *kmsg = afs_osi_Alloc(kmsgLen);
875 char *cellname = afs_osi_Alloc(cellLen);
878 afs_osi_MaskSignals();
880 AFS_COPYIN((afs_int32 *) parm2, cellname, cellLen, code);
881 AFS_COPYIN((afs_int32 *) parm3, kmsg, kmsgLen, code);
883 code = afs_AFSDBHandler(cellname, cellLen, kmsg);
886 if (code == -2) { /* Shutting down? */
892 AFS_COPYOUT(cellname, (char *)parm2, cellLen, code);
893 afs_osi_Free(kmsg, kmsgLen);
894 afs_osi_Free(cellname, cellLen);
897 else if (parm == AFSOP_SET_DYNROOT) {
898 code = afs_SetDynrootEnable(parm2);
899 } else if (parm == AFSOP_SET_FAKESTAT) {
900 afs_fakestat_enable = parm2;
902 } else if (parm == AFSOP_SET_BACKUPTREE) {
903 afs_bkvolpref = parm2;
909 #ifdef AFS_LINUX20_ENV
918 #include "sys/lockl.h"
921 * syscall - this is the VRMIX system call entry point.
924 * THIS SHOULD BE CHANGED TO afs_syscall(), but requires
925 * all the user-level calls to `syscall' to change.
927 syscall(syscall, p1, p2, p3, p4, p5, p6)
929 register rval1 = 0, code;
932 #ifndef AFS_AIX41_ENV
933 extern lock_t kernel_lock;
934 monster = lockl(&kernel_lock, LOCK_SHORT);
935 #endif /* !AFS_AIX41_ENV */
937 AFS_STATCNT(syscall);
941 rval1 = afs_syscall_call(p1, p2, p3, p4, p5, p6);
946 rval1 = afs_setpag();
952 rval1 = afs_syscall_pioctl(p1, p2, p3, p4);
956 case AFSCALL_ICREATE:
957 rval1 = afs_syscall_icreate(p1, p2, p3, p4, p5, p6);
961 rval1 = afs_syscall_iopen(p1, p2, p3);
965 rval1 = afs_syscall_iincdec(p1, p2, p3, -1);
969 rval1 = afs_syscall_iincdec(p1, p2, p3, 1);
974 code = Afscall_icl(p1, p2, p3, p4, p5, &retval);
989 #ifndef AFS_AIX41_ENV
990 if (monster != LOCK_NEST)
991 unlockl(&kernel_lock);
992 #endif /* !AFS_AIX41_ENV */
993 return getuerror()? -1 : rval1;
997 * lsetpag - interface to afs_setpag().
1002 AFS_STATCNT(lsetpag);
1003 return syscall(AFSCALL_SETPAG, 0, 0, 0, 0, 0);
1007 * lpioctl - interface to pioctl()
1009 lpioctl(path, cmd, cmarg, follow)
1013 AFS_STATCNT(lpioctl);
1014 return syscall(AFSCALL_PIOCTL, path, cmd, cmarg, follow);
1017 #else /* !AFS_AIX32_ENV */
1019 #if defined(AFS_SGI_ENV)
1031 Afs_syscall(struct afsargs *uap, rval_t * rvp)
1036 AFS_STATCNT(afs_syscall);
1037 switch (uap->syscall) {
1042 Afscall_icl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1043 uap->parm5, &retval);
1045 rvp->r_val1 = retval;
1047 #ifdef AFS_SGI_XFS_IOPS_ENV
1048 case AFSCALL_IDEC64:
1050 afs_syscall_idec64(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1053 case AFSCALL_IINC64:
1055 afs_syscall_iinc64(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1058 case AFSCALL_ILISTINODE64:
1060 afs_syscall_ilistinode64(uap->parm1, uap->parm2, uap->parm3,
1061 uap->parm4, uap->parm5);
1063 case AFSCALL_ICREATENAME64:
1065 afs_syscall_icreatename64(uap->parm1, uap->parm2, uap->parm3,
1066 uap->parm4, uap->parm5);
1069 #ifdef AFS_SGI_VNODE_GLUE
1070 case AFSCALL_INIT_KERNEL_CONFIG:
1071 error = afs_init_kernel_config(uap->parm1);
1076 afs_syscall_call(uap->syscall, uap->parm1, uap->parm2, uap->parm3,
1077 uap->parm4, uap->parm5);
1082 #else /* AFS_SGI_ENV */
1100 iparam32_to_iparam(const struct iparam32 *src, struct iparam *dst)
1102 dst->param1 = src->param1;
1103 dst->param2 = src->param2;
1104 dst->param3 = src->param3;
1105 dst->param4 = src->param4;
1109 * If you need to change copyin_iparam(), you may also need to change
1110 * copyin_afs_ioctl().
1114 copyin_iparam(caddr_t cmarg, struct iparam *dst)
1118 #if defined(AFS_HPUX_64BIT_ENV)
1119 struct iparam32 dst32;
1121 if (is_32bit(u.u_procp)) { /* is_32bit() in proc_iface.h */
1122 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
1124 iparam32_to_iparam(&dst32, dst);
1127 #endif /* AFS_HPUX_64BIT_ENV */
1129 #if defined(AFS_SUN57_64BIT_ENV)
1130 struct iparam32 dst32;
1132 if (get_udatamodel() == DATAMODEL_ILP32) {
1133 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
1135 iparam32_to_iparam(&dst32, dst);
1138 #endif /* AFS_SUN57_64BIT_ENV */
1140 #if defined(AFS_LINUX_64BIT_KERNEL) && !defined(AFS_ALPHA_LINUX20_ENV) && !defined(AFS_IA64_LINUX20_ENV) && !defined(AFS_AMD64_LINUX20_ENV)
1141 struct iparam32 dst32;
1143 #ifdef AFS_SPARC64_LINUX24_ENV
1144 if (current->thread.flags & SPARC_FLAG_32BIT)
1145 #elif defined(AFS_SPARC64_LINUX20_ENV)
1146 if (current->tss.flags & SPARC_FLAG_32BIT)
1147 #elif defined(AFS_AMD64_LINUX20_ENV)
1148 if (current->thread.flags & THREAD_IA32)
1149 #elif defined(AFS_PPC64_LINUX20_ENV)
1150 if (current->thread.flags & PPC_FLAG_32BIT)
1152 #error Not done for this linux version
1155 AFS_COPYIN(cmarg, (caddr_t) & dst32, sizeof dst32, code);
1157 iparam32_to_iparam(&dst32, dst);
1160 #endif /* AFS_LINUX_64BIT_KERNEL */
1162 AFS_COPYIN(cmarg, (caddr_t) dst, sizeof *dst, code);
1166 /* Main entry of all afs system calls */
1168 extern int afs_sinited;
1170 /** The 32 bit OS expects the members of this structure to be 32 bit
1171 * quantities and the 64 bit OS expects them as 64 bit quanties. Hence
1172 * to accomodate both, *long* is used instead of afs_int32
1175 #ifdef AFS_SUN57_ENV
1197 Afs_syscall(register struct afssysa *uap, rval_t * rvp)
1199 int *retval = &rvp->r_val1;
1200 #else /* AFS_SUN5_ENV */
1201 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1203 afs3_syscall(p, args, retval)
1204 #ifdef AFS_FBSD50_ENV
1220 } *uap = (struct a *)args;
1221 #else /* AFS_OSF_ENV */
1222 #ifdef AFS_LINUX20_ENV
1230 long parm6; /* not actually used - should be removed */
1232 /* Linux system calls only set up for 5 arguments. */
1234 afs_syscall(long syscall, long parm1, long parm2, long parm3, long parm4)
1236 struct afssysargs args, *uap = &args;
1238 long *retval = &linux_ret;
1239 long eparm[4]; /* matches AFSCALL_ICL in fstrace.c */
1240 #ifdef AFS_SPARC64_LINUX24_ENV
1241 afs_int32 eparm32[4];
1243 /* eparm is also used by AFSCALL_CALL in afsd.c */
1245 #if defined(UKERNEL)
1256 } *uap = (struct a *)u.u_ap;
1259 #if defined(AFS_SUN_ENV) && !defined(AFS_SUN5_ENV)
1263 #endif /* SUN && !SUN5 */
1273 } *uap = (struct a *)u.u_ap;
1274 #endif /* UKERNEL */
1275 #if defined(AFS_DEC_ENV)
1276 int *retval = &u.u_r.r_val1;
1277 #elif defined(AFS_HPUX_ENV)
1278 long *retval = &u.u_rval1;
1280 int *retval = &u.u_rval1;
1282 #endif /* AFS_LINUX20_ENV */
1283 #endif /* AFS_OSF_ENV */
1284 #endif /* AFS_SUN5_ENV */
1285 register int code = 0;
1287 AFS_STATCNT(afs_syscall);
1294 #ifdef AFS_LINUX20_ENV
1296 /* setup uap for use below - pull out the magic decoder ring to know
1297 * which syscalls have folded argument lists.
1299 uap->syscall = syscall;
1303 if (syscall == AFSCALL_ICL || syscall == AFSCALL_CALL) {
1304 #ifdef AFS_SPARC64_LINUX24_ENV
1305 /* from arch/sparc64/kernel/sys_sparc32.c */
1307 ({ unsigned long __ret; \
1308 __asm__ ("srl %0, 0, %0" \
1315 if (current->thread.flags & SPARC_FLAG_32BIT) {
1316 AFS_COPYIN((char *)parm4, (char *)eparm32, sizeof(eparm32), code);
1317 eparm[0] = AA(eparm32[0]);
1318 eparm[1] = AA(eparm32[1]);
1319 eparm[2] = AA(eparm32[2]);
1323 AFS_COPYIN((char *)parm4, (char *)eparm, sizeof(eparm), code);
1324 uap->parm4 = eparm[0];
1325 uap->parm5 = eparm[1];
1326 uap->parm6 = eparm[2];
1334 #if defined(AFS_HPUX_ENV)
1336 * There used to be code here (duplicated from osi_Init()) for
1337 * initializing the semaphore used by AFS_GLOCK(). Was the
1338 * duplication to handle the case of a dynamically loaded kernel
1343 if (uap->syscall == AFSCALL_CALL) {
1346 afs_syscall_call(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1347 uap->parm5, uap->parm6, rvp, CRED());
1350 afs_syscall_call(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1351 uap->parm5, uap->parm6);
1353 } else if (uap->syscall == AFSCALL_SETPAG) {
1355 register proc_t *procp;
1357 procp = ttoproc(curthread);
1359 code = afs_setpag(&procp->p_cred);
1363 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1364 code = afs_setpag(p, args, retval);
1365 #else /* AFS_OSF_ENV */
1366 code = afs_setpag();
1370 } else if (uap->syscall == AFSCALL_PIOCTL) {
1372 #if defined(AFS_SUN5_ENV)
1374 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1376 #elif defined(AFS_FBSD50_ENV)
1378 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1380 #elif defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1382 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1383 p->p_cred->pc_ucred);
1386 afs_syscall_pioctl(uap->parm1, uap->parm2, uap->parm3,
1390 } else if (uap->syscall == AFSCALL_ICREATE) {
1391 struct iparam iparams;
1393 code = copyin_iparam((char *)uap->parm3, &iparams);
1395 #if defined(KERNEL_HAVE_UERROR)
1401 afs_syscall_icreate(uap->parm1, uap->parm2, iparams.param1,
1402 iparams.param2, iparams.param3,
1403 iparams.param4, rvp, CRED());
1406 afs_syscall_icreate(uap->parm1, uap->parm2, iparams.param1,
1408 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1409 iparams.param3, iparams.param4, retval);
1411 iparams.param3, iparams.param4);
1413 #endif /* AFS_SUN5_ENV */
1414 } else if (uap->syscall == AFSCALL_IOPEN) {
1417 afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3, rvp,
1420 #if defined(AFS_OSF_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1421 code = afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3, retval);
1423 code = afs_syscall_iopen(uap->parm1, uap->parm2, uap->parm3);
1425 #endif /* AFS_SUN5_ENV */
1426 } else if (uap->syscall == AFSCALL_IDEC) {
1429 afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, -1, rvp,
1432 code = afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, -1);
1433 #endif /* AFS_SUN5_ENV */
1434 } else if (uap->syscall == AFSCALL_IINC) {
1437 afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, 1, rvp,
1440 code = afs_syscall_iincdec(uap->parm1, uap->parm2, uap->parm3, 1);
1441 #endif /* AFS_SUN5_ENV */
1442 } else if (uap->syscall == AFSCALL_ICL) {
1445 Afscall_icl(uap->parm1, uap->parm2, uap->parm3, uap->parm4,
1446 uap->parm5, retval);
1448 #ifdef AFS_LINUX20_ENV
1450 /* ICL commands can return values. */
1451 code = -linux_ret; /* Gets negated again at exit below */
1455 #if defined(KERNEL_HAVE_UERROR)
1459 #endif /* !AFS_LINUX20_ENV */
1461 #if defined(KERNEL_HAVE_UERROR)
1468 #ifdef AFS_LINUX20_ENV
1474 #endif /* AFS_SGI_ENV */
1475 #endif /* !AFS_AIX32_ENV */
1478 * Initstate in the range 0 < x < 100 are early initialization states.
1479 * Initstate of 100 means a AFSOP_START operation has been done. After this,
1480 * the cache may be initialized.
1481 * Initstate of 101 means a AFSOP_GO operation has been done. This operation
1482 * is done after all the cache initialization has been done.
1483 * Initstate of 200 means that the volume has been looked up once, possibly
1485 * Initstate of 300 means that the volume has been *successfully* looked up.
1490 register int code = 0;
1492 AFS_STATCNT(afs_CheckInit);
1493 if (afs_initState <= 100)
1494 code = ENXIO; /* never finished init phase */
1495 else if (afs_initState == 101) { /* init done, wait for afs_daemon */
1496 while (afs_initState < 200)
1497 afs_osi_Sleep(&afs_initState);
1498 } else if (afs_initState == 200)
1499 code = ETIMEDOUT; /* didn't find root volume */
1503 int afs_shuttingdown = 0;
1507 extern short afs_brsDaemons;
1508 extern afs_int32 afs_CheckServerDaemonStarted;
1509 extern struct afs_osi_WaitHandle AFS_WaitHandler, AFS_CSWaitHandler;
1510 extern struct osi_file *afs_cacheInodep;
1512 AFS_STATCNT(afs_shutdown);
1513 if (afs_shuttingdown)
1515 afs_shuttingdown = 1;
1516 if (afs_cold_shutdown)
1520 afs_warn("shutting down of: CB... ");
1522 afs_termState = AFSOP_STOP_RXCALLBACK;
1523 rx_WakeupServerProcs();
1524 /* shutdown_rxkernel(); */
1525 while (afs_termState == AFSOP_STOP_RXCALLBACK)
1526 afs_osi_Sleep(&afs_termState);
1528 afs_warn("afs... ");
1529 while (afs_termState == AFSOP_STOP_AFS) {
1530 afs_osi_CancelWait(&AFS_WaitHandler);
1531 afs_osi_Sleep(&afs_termState);
1533 if (afs_CheckServerDaemonStarted) {
1534 while (afs_termState == AFSOP_STOP_CS) {
1535 afs_osi_CancelWait(&AFS_CSWaitHandler);
1536 afs_osi_Sleep(&afs_termState);
1539 afs_warn("BkG... ");
1540 /* Wake-up afs_brsDaemons so that we don't have to wait for a bkg job! */
1541 while (afs_termState == AFSOP_STOP_BKG) {
1542 afs_osi_Wakeup(&afs_brsDaemons);
1543 afs_osi_Sleep(&afs_termState);
1545 afs_warn("CTrunc... ");
1546 /* Cancel cache truncate daemon. */
1547 while (afs_termState == AFSOP_STOP_TRUNCDAEMON) {
1548 afs_osi_Wakeup((char *)&afs_CacheTruncateDaemon);
1549 afs_osi_Sleep(&afs_termState);
1551 #ifdef AFS_AFSDB_ENV
1552 afs_warn("AFSDB... ");
1554 while (afs_termState == AFSOP_STOP_AFSDB)
1555 afs_osi_Sleep(&afs_termState);
1557 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
1558 afs_warn("RxEvent... ");
1559 /* cancel rx event daemon */
1560 while (afs_termState == AFSOP_STOP_RXEVENT)
1561 afs_osi_Sleep(&afs_termState);
1562 #if defined(RXK_LISTENER_ENV)
1564 afs_warn("UnmaskRxkSignals... ");
1565 afs_osi_UnmaskRxkSignals();
1567 /* cancel rx listener */
1568 afs_warn("RxListener... ");
1569 osi_StopListener(); /* This closes rx_socket. */
1570 while (afs_termState == AFSOP_STOP_RXK_LISTENER) {
1571 afs_warn("Sleep... ");
1572 afs_osi_Sleep(&afs_termState);
1576 afs_termState = AFSOP_STOP_COMPLETE;
1580 /* Close file only after daemons which can write to it are stopped. */
1581 if (afs_cacheInodep) { /* memcache won't set this */
1582 osi_UFSClose(afs_cacheInodep); /* Since we always leave it open */
1583 afs_cacheInodep = 0;
1585 return; /* Just kill daemons for now */
1589 shutdown_rxkernel();
1593 shutdown_bufferpackage();
1599 shutdown_vnodeops();
1601 shutdown_exporter();
1602 shutdown_memcache();
1603 #if !defined(AFS_NONFSTRANS) || defined(AFS_AIX_IAUTH_ENV)
1604 #if !defined(AFS_DEC_ENV) && !defined(AFS_OSF_ENV)
1605 /* this routine does not exist in Ultrix systems... 93.01.19 */
1607 #endif /* AFS_DEC_ENV */
1610 /* The following hold the cm stats */
1612 memset(&afs_cmstats, 0, sizeof(struct afs_CMStats));
1613 memset(&afs_stats_cmperf, 0, sizeof(struct afs_stats_CMPerf));
1614 memset(&afs_stats_cmfullperf, 0, sizeof(struct afs_stats_CMFullPerf));
1616 afs_warn(" ALL allocated tables\n");
1617 afs_shuttingdown = 0;
1622 shutdown_afstest(void)
1624 AFS_STATCNT(shutdown_afstest);
1625 afs_initState = afs_termState = afs_setTime = 0;
1626 AFS_Running = afs_CB_Running = 0;
1627 afs_CacheInit_Done = afs_Go_Done = 0;
1628 if (afs_cold_shutdown) {
1629 *afs_rootVolumeName = 0;
1634 /* In case there is a bunch of dynamically build bkg daemons to free */
1636 afs_shutdown_BKG(void)
1638 AFS_STATCNT(shutdown_BKG);
1642 #if defined(AFS_ALPHA_ENV) || defined(AFS_SGI61_ENV)
1643 /* For SGI 6.2, this can is changed to 1 if it's a 32 bit kernel. */
1644 #if defined(AFS_SGI62_ENV) && defined(KERNEL) && !defined(_K64U64)
1645 int afs_icl_sizeofLong = 1;
1647 int afs_icl_sizeofLong = 2;
1650 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
1651 int afs_icl_sizeofLong = 2;
1653 int afs_icl_sizeofLong = 1;
1657 int afs_icl_inited = 0;
1659 /* init function, called once, under afs_icl_lock */
1667 extern struct afs_icl_log *afs_icl_FindLog();
1668 extern struct afs_icl_set *afs_icl_FindSet();
1672 Afscall_icl(long opcode, long p1, long p2, long p3, long p4, long *retval)
1674 afs_int32 *lp, elts, flags;
1675 register afs_int32 code;
1676 struct afs_icl_log *logp;
1677 struct afs_icl_set *setp;
1678 #if defined(AFS_SGI61_ENV) || defined(AFS_SUN57_ENV) || defined(AFS_DARWIN_ENV) || defined(AFS_XBSD_ENV)
1680 #else /* AFS_SGI61_ENV */
1681 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
1686 #endif /* AFS_SGI61_ENV */
1688 afs_int32 startCookie;
1689 afs_int32 allocated;
1690 struct afs_icl_log *tlp;
1693 if (!afs_suser(CRED())) { /* only root can run this code */
1697 if (!afs_suser(NULL)) { /* only root can run this code */
1698 #if defined(KERNEL_HAVE_UERROR)
1707 case ICL_OP_COPYOUTCLR: /* copy out data then clear */
1708 case ICL_OP_COPYOUT: /* copy ouy data */
1709 /* copyout: p1=logname, p2=&buffer, p3=size(words), p4=&cookie
1710 * return flags<<24 + nwords.
1711 * updates cookie to updated start (not end) if we had to
1712 * skip some records.
1714 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1717 AFS_COPYIN((char *)p4, (char *)&startCookie, sizeof(afs_int32), code);
1720 logp = afs_icl_FindLog(tname);
1723 #define BUFFERSIZE AFS_LRALLOCSIZ
1724 lp = (afs_int32 *) osi_AllocLargeSpace(AFS_LRALLOCSIZ);
1725 elts = BUFFERSIZE / sizeof(afs_int32);
1728 flags = (opcode == ICL_OP_COPYOUT) ? 0 : ICL_COPYOUTF_CLRAFTERREAD;
1730 afs_icl_CopyOut(logp, lp, &elts, (afs_uint32 *) & startCookie,
1733 osi_FreeLargeSpace((struct osi_buffer *)lp);
1736 AFS_COPYOUT((char *)lp, (char *)p2, elts * sizeof(afs_int32), code);
1739 AFS_COPYOUT((char *)&startCookie, (char *)p4, sizeof(afs_int32),
1743 #if defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL)
1745 *retval = ((long)((flags << 24) | (elts & 0xffffff))) << 32;
1748 *retval = (flags << 24) | (elts & 0xffffff);
1750 afs_icl_LogRele(logp);
1751 osi_FreeLargeSpace((struct osi_buffer *)lp);
1754 case ICL_OP_ENUMLOGS: /* enumerate logs */
1755 /* enumerate logs: p1=index, p2=&name, p3=sizeof(name), p4=&size.
1756 * return 0 for success, otherwise error.
1758 for (tlp = afs_icl_allLogs; tlp; tlp = tlp->nextp) {
1763 return ENOENT; /* past the end of file */
1764 temp = strlen(tlp->name) + 1;
1767 AFS_COPYOUT(tlp->name, (char *)p2, temp, code);
1768 if (!code) /* copy out size of log */
1769 AFS_COPYOUT((char *)&tlp->logSize, (char *)p4, sizeof(afs_int32),
1773 case ICL_OP_ENUMLOGSBYSET: /* enumerate logs by set name */
1774 /* enumerate logs: p1=setname, p2=index, p3=&name, p4=sizeof(name).
1775 * return 0 for success, otherwise error.
1777 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1780 setp = afs_icl_FindSet(tname);
1783 if (p2 > ICL_LOGSPERSET)
1785 if (!(tlp = setp->logs[p2]))
1787 temp = strlen(tlp->name) + 1;
1790 AFS_COPYOUT(tlp->name, (char *)p3, temp, code);
1793 case ICL_OP_CLRLOG: /* clear specified log */
1794 /* zero out the specified log: p1=logname */
1795 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1798 logp = afs_icl_FindLog(tname);
1801 code = afs_icl_ZeroLog(logp);
1802 afs_icl_LogRele(logp);
1805 case ICL_OP_CLRSET: /* clear specified set */
1806 /* zero out the specified set: p1=setname */
1807 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1810 setp = afs_icl_FindSet(tname);
1813 code = afs_icl_ZeroSet(setp);
1814 afs_icl_SetRele(setp);
1817 case ICL_OP_CLRALL: /* clear all logs */
1818 /* zero out all logs -- no args */
1820 ObtainWriteLock(&afs_icl_lock, 178);
1821 for (tlp = afs_icl_allLogs; tlp; tlp = tlp->nextp) {
1822 tlp->refCount++; /* hold this guy */
1823 ReleaseWriteLock(&afs_icl_lock);
1824 /* don't clear persistent logs */
1825 if ((tlp->states & ICL_LOGF_PERSISTENT) == 0)
1826 code = afs_icl_ZeroLog(tlp);
1827 ObtainWriteLock(&afs_icl_lock, 179);
1828 if (--tlp->refCount == 0)
1829 afs_icl_ZapLog(tlp);
1833 ReleaseWriteLock(&afs_icl_lock);
1836 case ICL_OP_ENUMSETS: /* enumerate all sets */
1837 /* enumerate sets: p1=index, p2=&name, p3=sizeof(name), p4=&states.
1838 * return 0 for success, otherwise error.
1840 for (setp = afs_icl_allSets; setp; setp = setp->nextp) {
1845 return ENOENT; /* past the end of file */
1846 temp = strlen(setp->name) + 1;
1849 AFS_COPYOUT(setp->name, (char *)p2, temp, code);
1850 if (!code) /* copy out size of log */
1851 AFS_COPYOUT((char *)&setp->states, (char *)p4, sizeof(afs_int32),
1855 case ICL_OP_SETSTAT: /* set status on a set */
1856 /* activate the specified set: p1=setname, p2=op */
1857 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1860 setp = afs_icl_FindSet(tname);
1863 code = afs_icl_SetSetStat(setp, p2);
1864 afs_icl_SetRele(setp);
1867 case ICL_OP_SETSTATALL: /* set status on all sets */
1868 /* activate the specified set: p1=op */
1870 ObtainWriteLock(&afs_icl_lock, 180);
1871 for (setp = afs_icl_allSets; setp; setp = setp->nextp) {
1872 setp->refCount++; /* hold this guy */
1873 ReleaseWriteLock(&afs_icl_lock);
1874 /* don't set states on persistent sets */
1875 if ((setp->states & ICL_SETF_PERSISTENT) == 0)
1876 code = afs_icl_SetSetStat(setp, p1);
1877 ObtainWriteLock(&afs_icl_lock, 181);
1878 if (--setp->refCount == 0)
1879 afs_icl_ZapSet(setp);
1883 ReleaseWriteLock(&afs_icl_lock);
1886 case ICL_OP_SETLOGSIZE: /* set size of log */
1887 /* set the size of the specified log: p1=logname, p2=size (in words) */
1888 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1891 logp = afs_icl_FindLog(tname);
1894 code = afs_icl_LogSetSize(logp, p2);
1895 afs_icl_LogRele(logp);
1898 case ICL_OP_GETLOGINFO: /* get size of log */
1899 /* zero out the specified log: p1=logname, p2=&logSize, p3=&allocated */
1900 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1903 logp = afs_icl_FindLog(tname);
1906 allocated = !!logp->datap;
1907 AFS_COPYOUT((char *)&logp->logSize, (char *)p2, sizeof(afs_int32),
1910 AFS_COPYOUT((char *)&allocated, (char *)p3, sizeof(afs_int32),
1912 afs_icl_LogRele(logp);
1915 case ICL_OP_GETSETINFO: /* get state of set */
1916 /* zero out the specified set: p1=setname, p2=&state */
1917 AFS_COPYINSTR((char *)p1, tname, sizeof(tname), &temp, code);
1920 setp = afs_icl_FindSet(tname);
1923 AFS_COPYOUT((char *)&setp->states, (char *)p2, sizeof(afs_int32),
1925 afs_icl_SetRele(setp);
1936 afs_lock_t afs_icl_lock;
1938 /* exported routine: a 4 parameter event */
1940 afs_icl_Event4(register struct afs_icl_set *setp, afs_int32 eventID,
1941 afs_int32 lAndT, long p1, long p2, long p3, long p4)
1945 register afs_int32 tmask;
1948 /* If things aren't init'ed yet (or the set is inactive), don't panic */
1949 if (!ICL_SETACTIVE(setp))
1953 mask = lAndT >> 24 & 0xff; /* mask of which logs to log to */
1954 ix = ICL_EVENTBYTE(eventID);
1955 ObtainReadLock(&setp->lock);
1956 if (setp->eventFlags[ix] & ICL_EVENTMASK(eventID)) {
1957 for (i = 0, tmask = 1; i < ICL_LOGSPERSET; i++, tmask <<= 1) {
1959 afs_icl_AppendRecord(setp->logs[i], eventID, lAndT & 0xffffff,
1964 break; /* break early */
1967 ReleaseReadLock(&setp->lock);
1971 /* Next 4 routines should be implemented via var-args or something.
1972 * Whole purpose is to avoid compiler warnings about parameter # mismatches.
1973 * Otherwise, could call afs_icl_Event4 directly.
1976 afs_icl_Event3(register struct afs_icl_set *setp, afs_int32 eventID,
1977 afs_int32 lAndT, long p1, long p2, long p3)
1979 return afs_icl_Event4(setp, eventID, lAndT, p1, p2, p3, (long)0);
1983 afs_icl_Event2(register struct afs_icl_set *setp, afs_int32 eventID,
1984 afs_int32 lAndT, long p1, long p2)
1986 return afs_icl_Event4(setp, eventID, lAndT, p1, p2, (long)0, (long)0);
1990 afs_icl_Event1(register struct afs_icl_set *setp, afs_int32 eventID,
1991 afs_int32 lAndT, long p1)
1993 return afs_icl_Event4(setp, eventID, lAndT, p1, (long)0, (long)0,
1998 afs_icl_Event0(register struct afs_icl_set *setp, afs_int32 eventID,
2001 return afs_icl_Event4(setp, eventID, lAndT, (long)0, (long)0, (long)0,
2005 struct afs_icl_log *afs_icl_allLogs = 0;
2007 /* function to purge records from the start of the log, until there
2008 * is at least minSpace long's worth of space available without
2009 * making the head and the tail point to the same word.
2011 * Log must be write-locked.
2014 afs_icl_GetLogSpace(register struct afs_icl_log *logp, afs_int32 minSpace)
2016 register unsigned int tsize;
2018 while (logp->logSize - logp->logElements <= minSpace) {
2020 tsize = ((logp->datap[logp->firstUsed]) >> 24) & 0xff;
2021 logp->logElements -= tsize;
2022 logp->firstUsed += tsize;
2023 if (logp->firstUsed >= logp->logSize)
2024 logp->firstUsed -= logp->logSize;
2025 logp->baseCookie += tsize;
2029 /* append string astr to buffer, including terminating null char.
2031 * log must be write-locked.
2033 #define ICL_CHARSPERLONG 4
2035 afs_icl_AppendString(struct afs_icl_log *logp, char *astr)
2037 char *op; /* ptr to char to write */
2039 register int bib; /* bytes in buffer */
2042 op = (char *)&(logp->datap[logp->firstFree]);
2046 if (++bib >= ICL_CHARSPERLONG) {
2049 if (++(logp->firstFree) >= logp->logSize) {
2050 logp->firstFree = 0;
2051 op = (char *)&(logp->datap[0]);
2053 logp->logElements++;
2059 /* if we've used this word at all, allocate it */
2060 if (++(logp->firstFree) >= logp->logSize) {
2061 logp->firstFree = 0;
2063 logp->logElements++;
2067 /* add a long to the log, ignoring overflow (checked already) */
2068 #define ICL_APPENDINT32(lp, x) \
2070 (lp)->datap[(lp)->firstFree] = (x); \
2071 if (++((lp)->firstFree) >= (lp)->logSize) { \
2072 (lp)->firstFree = 0; \
2074 (lp)->logElements++; \
2077 #if defined(AFS_ALPHA_ENV) || (defined(AFS_SGI61_ENV) && (_MIPS_SZLONG==64)) || (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL))
2078 #define ICL_APPENDLONG(lp, x) \
2080 ICL_APPENDINT32((lp), ((x) >> 32) & 0xffffffffL); \
2081 ICL_APPENDINT32((lp), (x) & 0xffffffffL); \
2084 #else /* AFS_ALPHA_ENV */
2085 #define ICL_APPENDLONG(lp, x) ICL_APPENDINT32((lp), (x))
2086 #endif /* AFS_ALPHA_ENV */
2088 /* routine to tell whether we're dealing with the address or the
2092 afs_icl_UseAddr(int type)
2094 if (type == ICL_TYPE_HYPER || type == ICL_TYPE_STRING
2095 || type == ICL_TYPE_FID || type == ICL_TYPE_INT64)
2101 /* Function to append a record to the log. Written for speed
2102 * since we know that we're going to have to make this work fast
2103 * pretty soon, anyway. The log must be unlocked.
2107 afs_icl_AppendRecord(register struct afs_icl_log *logp, afs_int32 op,
2108 afs_int32 types, long p1, long p2, long p3, long p4)
2110 int rsize; /* record size in longs */
2111 register int tsize; /* temp size */
2115 t4 = types & 0x3f; /* decode types */
2123 osi_GetTime(&tv); /* It panics for solaris if inside */
2124 ObtainWriteLock(&logp->lock, 182);
2126 ReleaseWriteLock(&logp->lock);
2130 /* get timestamp as # of microseconds since some time that doesn't
2131 * change that often. This algorithm ticks over every 20 minutes
2132 * or so (1000 seconds). Write a timestamp record if it has.
2134 if (tv.tv_sec - logp->lastTS > 1024) {
2135 /* the timer has wrapped -- write a timestamp record */
2136 if (logp->logSize - logp->logElements <= 5)
2137 afs_icl_GetLogSpace(logp, 5);
2139 ICL_APPENDINT32(logp,
2140 (afs_int32) (5 << 24) + (ICL_TYPE_UNIXDATE << 18));
2141 ICL_APPENDINT32(logp, (afs_int32) ICL_INFO_TIMESTAMP);
2142 ICL_APPENDINT32(logp, (afs_int32) 0); /* use thread ID zero for clocks */
2143 ICL_APPENDINT32(logp,
2144 (afs_int32) (tv.tv_sec & 0x3ff) * 1000000 +
2146 ICL_APPENDINT32(logp, (afs_int32) tv.tv_sec);
2148 logp->lastTS = tv.tv_sec;
2151 rsize = 4; /* base case */
2153 /* compute size of parameter p1. Only tricky case is string.
2154 * In that case, we have to call strlen to get the string length.
2156 ICL_SIZEHACK(t1, p1);
2159 /* compute size of parameter p2. Only tricky case is string.
2160 * In that case, we have to call strlen to get the string length.
2162 ICL_SIZEHACK(t2, p2);
2165 /* compute size of parameter p3. Only tricky case is string.
2166 * In that case, we have to call strlen to get the string length.
2168 ICL_SIZEHACK(t3, p3);
2171 /* compute size of parameter p4. Only tricky case is string.
2172 * In that case, we have to call strlen to get the string length.
2174 ICL_SIZEHACK(t4, p4);
2177 /* At this point, we've computed all of the parameter sizes, and
2178 * have in rsize the size of the entire record we want to append.
2179 * Next, we check that we actually have room in the log to do this
2180 * work, and then we do the append.
2183 ReleaseWriteLock(&logp->lock);
2184 return; /* log record too big to express */
2187 if (logp->logSize - logp->logElements <= rsize)
2188 afs_icl_GetLogSpace(logp, rsize);
2190 ICL_APPENDINT32(logp,
2191 (afs_int32) (rsize << 24) + (t1 << 18) + (t2 << 12) +
2193 ICL_APPENDINT32(logp, (afs_int32) op);
2194 ICL_APPENDINT32(logp, (afs_int32) osi_ThreadUnique());
2195 ICL_APPENDINT32(logp,
2196 (afs_int32) (tv.tv_sec & 0x3ff) * 1000000 + tv.tv_usec);
2199 /* marshall parameter 1 now */
2200 if (t1 == ICL_TYPE_STRING) {
2201 afs_icl_AppendString(logp, (char *)p1);
2202 } else if (t1 == ICL_TYPE_HYPER) {
2203 ICL_APPENDINT32(logp,
2204 (afs_int32) ((struct afs_hyper_t *)p1)->high);
2205 ICL_APPENDINT32(logp,
2206 (afs_int32) ((struct afs_hyper_t *)p1)->low);
2207 } else if (t1 == ICL_TYPE_INT64) {
2208 #ifdef AFSLITTLE_ENDIAN
2209 #ifdef AFS_64BIT_CLIENT
2210 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[1]);
2211 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[0]);
2212 #else /* AFS_64BIT_CLIENT */
2213 ICL_APPENDINT32(logp, (afs_int32) p1);
2214 ICL_APPENDINT32(logp, (afs_int32) 0);
2215 #endif /* AFS_64BIT_CLIENT */
2216 #else /* AFSLITTLE_ENDIAN */
2217 #ifdef AFS_64BIT_CLIENT
2218 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[0]);
2219 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[1]);
2220 #else /* AFS_64BIT_CLIENT */
2221 ICL_APPENDINT32(logp, (afs_int32) 0);
2222 ICL_APPENDINT32(logp, (afs_int32) p1);
2223 #endif /* AFS_64BIT_CLIENT */
2224 #endif /* AFSLITTLE_ENDIAN */
2225 } else if (t1 == ICL_TYPE_FID) {
2226 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[0]);
2227 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[1]);
2228 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[2]);
2229 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p1)[3]);
2231 #if defined(AFS_ALPHA_ENV) || (defined(AFS_SGI61_ENV) && (_MIPS_SZLONG==64)) || (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL))
2232 else if (t1 == ICL_TYPE_INT32)
2233 ICL_APPENDINT32(logp, (afs_int32) p1);
2234 #endif /* AFS_ALPHA_ENV */
2236 ICL_APPENDLONG(logp, p1);
2239 /* marshall parameter 2 now */
2240 if (t2 == ICL_TYPE_STRING)
2241 afs_icl_AppendString(logp, (char *)p2);
2242 else if (t2 == ICL_TYPE_HYPER) {
2243 ICL_APPENDINT32(logp,
2244 (afs_int32) ((struct afs_hyper_t *)p2)->high);
2245 ICL_APPENDINT32(logp,
2246 (afs_int32) ((struct afs_hyper_t *)p2)->low);
2247 } else if (t2 == ICL_TYPE_INT64) {
2248 #ifdef AFSLITTLE_ENDIAN
2249 #ifdef AFS_64BIT_CLIENT
2250 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[1]);
2251 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[0]);
2252 #else /* AFS_64BIT_CLIENT */
2253 ICL_APPENDINT32(logp, (afs_int32) p2);
2254 ICL_APPENDINT32(logp, (afs_int32) 0);
2255 #endif /* AFS_64BIT_CLIENT */
2256 #else /* AFSLITTLE_ENDIAN */
2257 #ifdef AFS_64BIT_CLIENT
2258 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[0]);
2259 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[1]);
2260 #else /* AFS_64BIT_CLIENT */
2261 ICL_APPENDINT32(logp, (afs_int32) 0);
2262 ICL_APPENDINT32(logp, (afs_int32) p2);
2263 #endif /* AFS_64BIT_CLIENT */
2264 #endif /* AFSLITTLE_ENDIAN */
2265 } else if (t2 == ICL_TYPE_FID) {
2266 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[0]);
2267 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[1]);
2268 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[2]);
2269 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p2)[3]);
2271 #if defined(AFS_ALPHA_ENV) || (defined(AFS_SGI61_ENV) && (_MIPS_SZLONG==64)) || (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL))
2272 else if (t2 == ICL_TYPE_INT32)
2273 ICL_APPENDINT32(logp, (afs_int32) p2);
2274 #endif /* AFS_ALPHA_ENV */
2276 ICL_APPENDLONG(logp, p2);
2279 /* marshall parameter 3 now */
2280 if (t3 == ICL_TYPE_STRING)
2281 afs_icl_AppendString(logp, (char *)p3);
2282 else if (t3 == ICL_TYPE_HYPER) {
2283 ICL_APPENDINT32(logp,
2284 (afs_int32) ((struct afs_hyper_t *)p3)->high);
2285 ICL_APPENDINT32(logp,
2286 (afs_int32) ((struct afs_hyper_t *)p3)->low);
2287 } else if (t3 == ICL_TYPE_INT64) {
2288 #ifdef AFSLITTLE_ENDIAN
2289 #ifdef AFS_64BIT_CLIENT
2290 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[1]);
2291 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[0]);
2292 #else /* AFS_64BIT_CLIENT */
2293 ICL_APPENDINT32(logp, (afs_int32) p3);
2294 ICL_APPENDINT32(logp, (afs_int32) 0);
2295 #endif /* AFS_64BIT_CLIENT */
2296 #else /* AFSLITTLE_ENDIAN */
2297 #ifdef AFS_64BIT_CLIENT
2298 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[0]);
2299 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[1]);
2300 #else /* AFS_64BIT_CLIENT */
2301 ICL_APPENDINT32(logp, (afs_int32) 0);
2302 ICL_APPENDINT32(logp, (afs_int32) p3);
2303 #endif /* AFS_64BIT_CLIENT */
2304 #endif /* AFSLITTLE_ENDIAN */
2305 } else if (t3 == ICL_TYPE_FID) {
2306 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[0]);
2307 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[1]);
2308 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[2]);
2309 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p3)[3]);
2311 #if defined(AFS_ALPHA_ENV) || (defined(AFS_SGI61_ENV) && (_MIPS_SZLONG==64)) || (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL))
2312 else if (t3 == ICL_TYPE_INT32)
2313 ICL_APPENDINT32(logp, (afs_int32) p3);
2314 #endif /* AFS_ALPHA_ENV */
2316 ICL_APPENDLONG(logp, p3);
2319 /* marshall parameter 4 now */
2320 if (t4 == ICL_TYPE_STRING)
2321 afs_icl_AppendString(logp, (char *)p4);
2322 else if (t4 == ICL_TYPE_HYPER) {
2323 ICL_APPENDINT32(logp,
2324 (afs_int32) ((struct afs_hyper_t *)p4)->high);
2325 ICL_APPENDINT32(logp,
2326 (afs_int32) ((struct afs_hyper_t *)p4)->low);
2327 } else if (t4 == ICL_TYPE_INT64) {
2328 #ifdef AFSLITTLE_ENDIAN
2329 #ifdef AFS_64BIT_CLIENT
2330 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[1]);
2331 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[0]);
2332 #else /* AFS_64BIT_CLIENT */
2333 ICL_APPENDINT32(logp, (afs_int32) p4);
2334 ICL_APPENDINT32(logp, (afs_int32) 0);
2335 #endif /* AFS_64BIT_CLIENT */
2336 #else /* AFSLITTLE_ENDIAN */
2337 #ifdef AFS_64BIT_CLIENT
2338 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[0]);
2339 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[1]);
2340 #else /* AFS_64BIT_CLIENT */
2341 ICL_APPENDINT32(logp, (afs_int32) 0);
2342 ICL_APPENDINT32(logp, (afs_int32) p4);
2343 #endif /* AFS_64BIT_CLIENT */
2344 #endif /* AFSLITTLE_ENDIAN */
2345 } else if (t4 == ICL_TYPE_FID) {
2346 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[0]);
2347 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[1]);
2348 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[2]);
2349 ICL_APPENDINT32(logp, (afs_int32) ((afs_int32 *) p4)[3]);
2351 #if defined(AFS_ALPHA_ENV) || (defined(AFS_SGI61_ENV) && (_MIPS_SZLONG==64)) || (defined(AFS_AIX51_ENV) && defined(AFS_64BIT_KERNEL))
2352 else if (t4 == ICL_TYPE_INT32)
2353 ICL_APPENDINT32(logp, (afs_int32) p4);
2354 #endif /* AFS_ALPHA_ENV */
2356 ICL_APPENDLONG(logp, p4);
2358 ReleaseWriteLock(&logp->lock);
2361 /* create a log with size logSize; return it in *outLogpp and tag
2362 * it with name "name."
2365 afs_icl_CreateLog(char *name, afs_int32 logSize,
2366 struct afs_icl_log **outLogpp)
2368 return afs_icl_CreateLogWithFlags(name, logSize, /*flags */ 0, outLogpp);
2371 /* create a log with size logSize; return it in *outLogpp and tag
2372 * it with name "name." 'flags' can be set to make the log unclearable.
2375 afs_icl_CreateLogWithFlags(char *name, afs_int32 logSize, afs_uint32 flags,
2376 struct afs_icl_log **outLogpp)
2378 register struct afs_icl_log *logp;
2380 /* add into global list under lock */
2381 ObtainWriteLock(&afs_icl_lock, 183);
2382 if (!afs_icl_inited)
2385 for (logp = afs_icl_allLogs; logp; logp = logp->nextp) {
2386 if (strcmp(logp->name, name) == 0) {
2387 /* found it already created, just return it */
2390 if (flags & ICL_CRLOG_FLAG_PERSISTENT) {
2391 ObtainWriteLock(&logp->lock, 184);
2392 logp->states |= ICL_LOGF_PERSISTENT;
2393 ReleaseWriteLock(&logp->lock);
2395 ReleaseWriteLock(&afs_icl_lock);
2400 logp = (struct afs_icl_log *)
2401 osi_AllocSmallSpace(sizeof(struct afs_icl_log));
2402 memset((caddr_t) logp, 0, sizeof(*logp));
2405 logp->name = osi_AllocSmallSpace(strlen(name) + 1);
2406 strcpy(logp->name, name);
2407 LOCK_INIT(&logp->lock, "logp lock");
2408 logp->logSize = logSize;
2409 logp->datap = NULL; /* don't allocate it until we need it */
2411 if (flags & ICL_CRLOG_FLAG_PERSISTENT)
2412 logp->states |= ICL_LOGF_PERSISTENT;
2414 logp->nextp = afs_icl_allLogs;
2415 afs_icl_allLogs = logp;
2416 ReleaseWriteLock(&afs_icl_lock);
2422 /* called with a log, a pointer to a buffer, the size of the buffer
2423 * (in *bufSizep), the starting cookie (in *cookiep, use 0 at the start)
2424 * and returns data in the provided buffer, and returns output flags
2425 * in *flagsp. The flag ICL_COPYOUTF_MISSEDSOME is set if we can't
2426 * find the record with cookie value cookie.
2429 afs_icl_CopyOut(register struct afs_icl_log *logp, afs_int32 * bufferp,
2430 afs_int32 * bufSizep, afs_uint32 * cookiep,
2433 afs_int32 nwords; /* number of words to copy out */
2434 afs_uint32 startCookie; /* first cookie to use */
2435 afs_int32 outWords; /* words we've copied out */
2436 afs_int32 inWords; /* max words to copy out */
2437 afs_int32 code; /* return code */
2438 afs_int32 ix; /* index we're copying from */
2439 afs_int32 outFlags; /* return flags */
2440 afs_int32 inFlags; /* flags passed in */
2443 inWords = *bufSizep; /* max to copy out */
2444 outWords = 0; /* amount copied out */
2445 startCookie = *cookiep;
2450 ObtainWriteLock(&logp->lock, 185);
2452 ReleaseWriteLock(&logp->lock);
2456 /* first, compute the index of the start cookie we've been passed */
2458 /* (re-)compute where we should start */
2459 if (startCookie < logp->baseCookie) {
2460 if (startCookie) /* missed some output */
2461 outFlags |= ICL_COPYOUTF_MISSEDSOME;
2462 /* skip to the first available record */
2463 startCookie = logp->baseCookie;
2464 *cookiep = startCookie;
2467 /* compute where we find the first element to copy out */
2468 ix = logp->firstUsed + startCookie - logp->baseCookie;
2469 if (ix >= logp->logSize)
2470 ix -= logp->logSize;
2472 /* if have some data now, break out and process it */
2473 if (startCookie - logp->baseCookie < logp->logElements)
2476 /* At end of log, so clear it if we need to */
2477 if (inFlags & ICL_COPYOUTF_CLRAFTERREAD) {
2478 logp->firstUsed = logp->firstFree = 0;
2479 logp->logElements = 0;
2481 /* otherwise, either wait for the data to arrive, or return */
2482 if (!(inFlags & ICL_COPYOUTF_WAITIO)) {
2483 ReleaseWriteLock(&logp->lock);
2487 logp->states |= ICL_LOGF_WAITING;
2488 ReleaseWriteLock(&logp->lock);
2489 afs_osi_Sleep(&logp->lock);
2490 ObtainWriteLock(&logp->lock, 186);
2492 /* copy out data from ix to logSize or firstFree, depending
2493 * upon whether firstUsed <= firstFree (no wrap) or otherwise.
2494 * be careful not to copy out more than nwords.
2496 if (ix >= logp->firstUsed) {
2497 if (logp->firstUsed <= logp->firstFree)
2499 end = logp->firstFree; /* first element not to copy */
2501 end = logp->logSize;
2502 nwords = inWords; /* don't copy more than this */
2503 if (end - ix < nwords)
2506 memcpy((char *)bufferp, (char *)&logp->datap[ix],
2507 sizeof(afs_int32) * nwords);
2512 /* if we're going to copy more out below, we'll start here */
2515 /* now, if active part of the log has wrapped, there's more stuff
2516 * starting at the head of the log. Copy out more from there.
2518 if (logp->firstUsed > logp->firstFree && ix < logp->firstFree
2520 /* (more to) copy out from the wrapped section at the
2521 * start of the log. May get here even if didn't copy any
2522 * above, if the cookie points directly into the wrapped section.
2525 if (logp->firstFree - ix < nwords)
2526 nwords = logp->firstFree - ix;
2527 memcpy((char *)bufferp, (char *)&logp->datap[ix],
2528 sizeof(afs_int32) * nwords);
2534 ReleaseWriteLock(&logp->lock);
2538 *bufSizep = outWords;
2544 /* return basic parameter information about a log */
2546 afs_icl_GetLogParms(struct afs_icl_log *logp, afs_int32 * maxSizep,
2547 afs_int32 * curSizep)
2549 ObtainReadLock(&logp->lock);
2550 *maxSizep = logp->logSize;
2551 *curSizep = logp->logElements;
2552 ReleaseReadLock(&logp->lock);
2557 /* hold and release logs */
2559 afs_icl_LogHold(register struct afs_icl_log *logp)
2561 ObtainWriteLock(&afs_icl_lock, 187);
2563 ReleaseWriteLock(&afs_icl_lock);
2567 /* hold and release logs, called with lock already held */
2569 afs_icl_LogHoldNL(register struct afs_icl_log *logp)
2575 /* keep track of how many sets believe the log itself is allocated */
2577 afs_icl_LogUse(register struct afs_icl_log *logp)
2579 ObtainWriteLock(&logp->lock, 188);
2580 if (logp->setCount == 0) {
2581 /* this is the first set actually using the log -- allocate it */
2582 if (logp->logSize == 0) {
2583 /* we weren't passed in a hint and it wasn't set */
2584 logp->logSize = ICL_DEFAULT_LOGSIZE;
2587 (afs_int32 *) afs_osi_Alloc(sizeof(afs_int32) * logp->logSize);
2588 #ifdef KERNEL_HAVE_PIN
2589 pin((char *)logp->datap, sizeof(afs_int32) * logp->logSize);
2593 ReleaseWriteLock(&logp->lock);
2597 /* decrement the number of real users of the log, free if possible */
2599 afs_icl_LogFreeUse(register struct afs_icl_log *logp)
2601 ObtainWriteLock(&logp->lock, 189);
2602 if (--logp->setCount == 0) {
2603 /* no more users -- free it (but keep log structure around) */
2604 afs_osi_Free(logp->datap, sizeof(afs_int32) * logp->logSize);
2605 #ifdef KERNEL_HAVE_PIN
2606 unpin((char *)logp->datap, sizeof(afs_int32) * logp->logSize);
2608 logp->firstUsed = logp->firstFree = 0;
2609 logp->logElements = 0;
2612 ReleaseWriteLock(&logp->lock);
2616 /* set the size of the log to 'logSize' */
2618 afs_icl_LogSetSize(register struct afs_icl_log *logp, afs_int32 logSize)
2620 ObtainWriteLock(&logp->lock, 190);
2622 /* nothing to worry about since it's not allocated */
2623 logp->logSize = logSize;
2626 logp->firstUsed = logp->firstFree = 0;
2627 logp->logElements = 0;
2629 /* free and allocate a new one */
2630 afs_osi_Free(logp->datap, sizeof(afs_int32) * logp->logSize);
2631 #ifdef KERNEL_HAVE_PIN
2632 unpin((char *)logp->datap, sizeof(afs_int32) * logp->logSize);
2635 (afs_int32 *) afs_osi_Alloc(sizeof(afs_int32) * logSize);
2636 #ifdef KERNEL_HAVE_PIN
2637 pin((char *)logp->datap, sizeof(afs_int32) * logSize);
2639 logp->logSize = logSize;
2641 ReleaseWriteLock(&logp->lock);
2646 /* free a log. Called with afs_icl_lock locked. */
2648 afs_icl_ZapLog(register struct afs_icl_log *logp)
2650 register struct afs_icl_log **lpp, *tp;
2652 for (lpp = &afs_icl_allLogs, tp = *lpp; tp; lpp = &tp->nextp, tp = *lpp) {
2654 /* found the dude we want to remove */
2656 osi_FreeSmallSpace(logp->name);
2657 osi_FreeSmallSpace(logp->datap);
2658 osi_FreeSmallSpace(logp);
2659 break; /* won't find it twice */
2665 /* do the release, watching for deleted entries */
2667 afs_icl_LogRele(register struct afs_icl_log *logp)
2669 ObtainWriteLock(&afs_icl_lock, 191);
2670 if (--logp->refCount == 0 && (logp->states & ICL_LOGF_DELETED)) {
2671 afs_icl_ZapLog(logp); /* destroys logp's lock! */
2673 ReleaseWriteLock(&afs_icl_lock);
2677 /* do the release, watching for deleted entries, log already held */
2679 afs_icl_LogReleNL(register struct afs_icl_log *logp)
2681 if (--logp->refCount == 0 && (logp->states & ICL_LOGF_DELETED)) {
2682 afs_icl_ZapLog(logp); /* destroys logp's lock! */
2687 /* zero out the log */
2689 afs_icl_ZeroLog(register struct afs_icl_log *logp)
2691 ObtainWriteLock(&logp->lock, 192);
2692 logp->firstUsed = logp->firstFree = 0;
2693 logp->logElements = 0;
2694 logp->baseCookie = 0;
2695 ReleaseWriteLock(&logp->lock);
2699 /* free a log entry, and drop its reference count */
2701 afs_icl_LogFree(register struct afs_icl_log *logp)
2703 ObtainWriteLock(&logp->lock, 193);
2704 logp->states |= ICL_LOGF_DELETED;
2705 ReleaseWriteLock(&logp->lock);
2706 afs_icl_LogRele(logp);
2710 /* find a log by name, returning it held */
2711 struct afs_icl_log *
2712 afs_icl_FindLog(char *name)
2714 register struct afs_icl_log *tp;
2715 ObtainWriteLock(&afs_icl_lock, 194);
2716 for (tp = afs_icl_allLogs; tp; tp = tp->nextp) {
2717 if (strcmp(tp->name, name) == 0) {
2718 /* this is the dude we want */
2723 ReleaseWriteLock(&afs_icl_lock);
2728 afs_icl_EnumerateLogs(int (*aproc)
2729 (char *name, char *arock, struct afs_icl_log * tp),
2732 register struct afs_icl_log *tp;
2733 register afs_int32 code;
2736 ObtainWriteLock(&afs_icl_lock, 195);
2737 for (tp = afs_icl_allLogs; tp; tp = tp->nextp) {
2738 tp->refCount++; /* hold this guy */
2739 ReleaseWriteLock(&afs_icl_lock);
2740 ObtainReadLock(&tp->lock);
2741 code = (*aproc) (tp->name, arock, tp);
2742 ReleaseReadLock(&tp->lock);
2743 ObtainWriteLock(&afs_icl_lock, 196);
2744 if (--tp->refCount == 0)
2749 ReleaseWriteLock(&afs_icl_lock);
2753 struct afs_icl_set *afs_icl_allSets = 0;
2756 afs_icl_CreateSet(char *name, struct afs_icl_log *baseLogp,
2757 struct afs_icl_log *fatalLogp,
2758 struct afs_icl_set **outSetpp)
2760 return afs_icl_CreateSetWithFlags(name, baseLogp, fatalLogp,
2761 /*flags */ 0, outSetpp);
2764 /* create a set, given pointers to base and fatal logs, if any.
2765 * Logs are unlocked, but referenced, and *outSetpp is returned
2766 * referenced. Function bumps reference count on logs, since it
2767 * addds references from the new afs_icl_set. When the set is destroyed,
2768 * those references will be released.
2771 afs_icl_CreateSetWithFlags(char *name, struct afs_icl_log *baseLogp,
2772 struct afs_icl_log *fatalLogp, afs_uint32 flags,
2773 struct afs_icl_set **outSetpp)
2775 register struct afs_icl_set *setp;
2777 afs_int32 states = ICL_DEFAULT_SET_STATES;
2779 ObtainWriteLock(&afs_icl_lock, 197);
2780 if (!afs_icl_inited)
2783 for (setp = afs_icl_allSets; setp; setp = setp->nextp) {
2784 if (strcmp(setp->name, name) == 0) {
2787 if (flags & ICL_CRSET_FLAG_PERSISTENT) {
2788 ObtainWriteLock(&setp->lock, 198);
2789 setp->states |= ICL_SETF_PERSISTENT;
2790 ReleaseWriteLock(&setp->lock);
2792 ReleaseWriteLock(&afs_icl_lock);
2797 /* determine initial state */
2798 if (flags & ICL_CRSET_FLAG_DEFAULT_ON)
2799 states = ICL_SETF_ACTIVE;
2800 else if (flags & ICL_CRSET_FLAG_DEFAULT_OFF)
2801 states = ICL_SETF_FREED;
2802 if (flags & ICL_CRSET_FLAG_PERSISTENT)
2803 states |= ICL_SETF_PERSISTENT;
2805 setp = (struct afs_icl_set *)afs_osi_Alloc(sizeof(struct afs_icl_set));
2806 memset((caddr_t) setp, 0, sizeof(*setp));
2808 if (states & ICL_SETF_FREED)
2809 states &= ~ICL_SETF_ACTIVE; /* if freed, can't be active */
2810 setp->states = states;
2812 LOCK_INIT(&setp->lock, "setp lock");
2813 /* next lock is obtained in wrong order, hierarchy-wise, but
2814 * it doesn't matter, since no one can find this lock yet, since
2815 * the afs_icl_lock is still held, and thus the obtain can't block.
2817 ObtainWriteLock(&setp->lock, 199);
2818 setp->name = osi_AllocSmallSpace(strlen(name) + 1);
2819 strcpy(setp->name, name);
2820 setp->nevents = ICL_DEFAULTEVENTS;
2821 setp->eventFlags = afs_osi_Alloc(ICL_DEFAULTEVENTS);
2822 #ifdef KERNEL_HAVE_PIN
2823 pin((char *)setp->eventFlags, ICL_DEFAULTEVENTS);
2825 for (i = 0; i < ICL_DEFAULTEVENTS; i++)
2826 setp->eventFlags[i] = 0xff; /* default to enabled */
2828 /* update this global info under the afs_icl_lock */
2829 setp->nextp = afs_icl_allSets;
2830 afs_icl_allSets = setp;
2831 ReleaseWriteLock(&afs_icl_lock);
2833 /* set's basic lock is still held, so we can finish init */
2835 setp->logs[0] = baseLogp;
2836 afs_icl_LogHold(baseLogp);
2837 if (!(setp->states & ICL_SETF_FREED))
2838 afs_icl_LogUse(baseLogp); /* log is actually being used */
2841 setp->logs[1] = fatalLogp;
2842 afs_icl_LogHold(fatalLogp);
2843 if (!(setp->states & ICL_SETF_FREED))
2844 afs_icl_LogUse(fatalLogp); /* log is actually being used */
2846 ReleaseWriteLock(&setp->lock);
2852 /* function to change event enabling information for a particular set */
2854 afs_icl_SetEnable(struct afs_icl_set *setp, afs_int32 eventID, int setValue)
2858 ObtainWriteLock(&setp->lock, 200);
2859 if (!ICL_EVENTOK(setp, eventID)) {
2860 ReleaseWriteLock(&setp->lock);
2863 tp = &setp->eventFlags[ICL_EVENTBYTE(eventID)];
2865 *tp |= ICL_EVENTMASK(eventID);
2867 *tp &= ~(ICL_EVENTMASK(eventID));
2868 ReleaseWriteLock(&setp->lock);
2872 /* return indication of whether a particular event ID is enabled
2873 * for tracing. If *getValuep is set to 0, the event is disabled,
2874 * otherwise it is enabled. All events start out enabled by default.
2877 afs_icl_GetEnable(struct afs_icl_set *setp, afs_int32 eventID, int *getValuep)
2879 ObtainReadLock(&setp->lock);
2880 if (!ICL_EVENTOK(setp, eventID)) {
2881 ReleaseWriteLock(&setp->lock);
2884 if (setp->eventFlags[ICL_EVENTBYTE(eventID)] & ICL_EVENTMASK(eventID))
2888 ReleaseReadLock(&setp->lock);
2892 /* hold and release event sets */
2894 afs_icl_SetHold(register struct afs_icl_set *setp)
2896 ObtainWriteLock(&afs_icl_lock, 201);
2898 ReleaseWriteLock(&afs_icl_lock);
2902 /* free a set. Called with afs_icl_lock locked */
2904 afs_icl_ZapSet(register struct afs_icl_set *setp)
2906 register struct afs_icl_set **lpp, *tp;
2908 register struct afs_icl_log *tlp;
2910 for (lpp = &afs_icl_allSets, tp = *lpp; tp; lpp = &tp->nextp, tp = *lpp) {
2912 /* found the dude we want to remove */
2914 osi_FreeSmallSpace(setp->name);
2915 afs_osi_Free(setp->eventFlags, ICL_DEFAULTEVENTS);
2916 #ifdef KERNEL_HAVE_PIN
2917 unpin((char *)setp->eventFlags, ICL_DEFAULTEVENTS);
2919 for (i = 0; i < ICL_LOGSPERSET; i++) {
2920 if ((tlp = setp->logs[i]))
2921 afs_icl_LogReleNL(tlp);
2923 osi_FreeSmallSpace(setp);
2924 break; /* won't find it twice */
2930 /* do the release, watching for deleted entries */
2932 afs_icl_SetRele(register struct afs_icl_set *setp)
2934 ObtainWriteLock(&afs_icl_lock, 202);
2935 if (--setp->refCount == 0 && (setp->states & ICL_SETF_DELETED)) {
2936 afs_icl_ZapSet(setp); /* destroys setp's lock! */
2938 ReleaseWriteLock(&afs_icl_lock);
2942 /* free a set entry, dropping its reference count */
2944 afs_icl_SetFree(register struct afs_icl_set *setp)
2946 ObtainWriteLock(&setp->lock, 203);
2947 setp->states |= ICL_SETF_DELETED;
2948 ReleaseWriteLock(&setp->lock);
2949 afs_icl_SetRele(setp);
2953 /* find a set by name, returning it held */
2954 struct afs_icl_set *
2955 afs_icl_FindSet(char *name)
2957 register struct afs_icl_set *tp;
2958 ObtainWriteLock(&afs_icl_lock, 204);
2959 for (tp = afs_icl_allSets; tp; tp = tp->nextp) {
2960 if (strcmp(tp->name, name) == 0) {
2961 /* this is the dude we want */
2966 ReleaseWriteLock(&afs_icl_lock);
2970 /* zero out all the logs in the set */
2972 afs_icl_ZeroSet(struct afs_icl_set *setp)
2977 struct afs_icl_log *logp;
2979 ObtainReadLock(&setp->lock);
2980 for (i = 0; i < ICL_LOGSPERSET; i++) {
2981 logp = setp->logs[i];
2983 afs_icl_LogHold(logp);
2984 tcode = afs_icl_ZeroLog(logp);
2986 code = tcode; /* save the last bad one */
2987 afs_icl_LogRele(logp);
2990 ReleaseReadLock(&setp->lock);
2995 afs_icl_EnumerateSets(int (*aproc)
2996 (char *name, char *arock, struct afs_icl_log * tp),
2999 register struct afs_icl_set *tp, *np;
3000 register afs_int32 code;
3003 ObtainWriteLock(&afs_icl_lock, 205);
3004 for (tp = afs_icl_allSets; tp; tp = np) {
3005 tp->refCount++; /* hold this guy */
3006 ReleaseWriteLock(&afs_icl_lock);
3007 code = (*aproc) (tp->name, arock, tp);
3008 ObtainWriteLock(&afs_icl_lock, 206);
3009 np = tp->nextp; /* tp may disappear next, but not np */
3010 if (--tp->refCount == 0 && (tp->states & ICL_SETF_DELETED))
3015 ReleaseWriteLock(&afs_icl_lock);
3020 afs_icl_AddLogToSet(struct afs_icl_set *setp, struct afs_icl_log *newlogp)
3025 ObtainWriteLock(&setp->lock, 207);
3026 for (i = 0; i < ICL_LOGSPERSET; i++) {
3027 if (!setp->logs[i]) {
3028 setp->logs[i] = newlogp;
3030 afs_icl_LogHold(newlogp);
3031 if (!(setp->states & ICL_SETF_FREED)) {
3032 /* bump up the number of sets using the log */
3033 afs_icl_LogUse(newlogp);
3038 ReleaseWriteLock(&setp->lock);
3043 afs_icl_SetSetStat(struct afs_icl_set *setp, int op)
3047 struct afs_icl_log *logp;
3049 ObtainWriteLock(&setp->lock, 208);
3051 case ICL_OP_SS_ACTIVATE: /* activate a log */
3053 * If we are not already active, see if we have released
3054 * our demand that the log be allocated (FREED set). If
3055 * we have, reassert our desire.
3057 if (!(setp->states & ICL_SETF_ACTIVE)) {
3058 if (setp->states & ICL_SETF_FREED) {
3059 /* have to reassert desire for logs */
3060 for (i = 0; i < ICL_LOGSPERSET; i++) {
3061 logp = setp->logs[i];
3063 afs_icl_LogHold(logp);
3064 afs_icl_LogUse(logp);
3065 afs_icl_LogRele(logp);
3068 setp->states &= ~ICL_SETF_FREED;
3070 setp->states |= ICL_SETF_ACTIVE;
3075 case ICL_OP_SS_DEACTIVATE: /* deactivate a log */
3076 /* this doesn't require anything beyond clearing the ACTIVE flag */
3077 setp->states &= ~ICL_SETF_ACTIVE;
3081 case ICL_OP_SS_FREE: /* deassert design for log */
3083 * if we are already in this state, do nothing; otherwise
3084 * deassert desire for log
3086 if (setp->states & ICL_SETF_ACTIVE)
3089 if (!(setp->states & ICL_SETF_FREED)) {
3090 for (i = 0; i < ICL_LOGSPERSET; i++) {
3091 logp = setp->logs[i];
3093 afs_icl_LogHold(logp);
3094 afs_icl_LogFreeUse(logp);
3095 afs_icl_LogRele(logp);
3098 setp->states |= ICL_SETF_FREED;
3107 ReleaseWriteLock(&setp->lock);