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
11 * Information Technology Center
15 * The Andrew File System startup process. It is responsible for
16 * reading and parsing the various configuration files, starting up
17 * the kernel processes required by AFS and feeding the configuration
18 * information to the kernel.
20 * Recognized flags are:
21 * -blocks The number of blocks available in the workstation cache.
22 * -files The target number of files in the workstation cache (Default:
24 * -rootvol The name of the root volume to use.
25 * -stat The number of stat cache entries.
26 * -hosts List of servers to check for volume location info FOR THE
28 * -memcache Use an in-memory cache rather than disk.
29 * -cachedir The base directory for the workstation cache.
30 * -mountdir The directory on which the AFS is to be mounted.
31 * -confdir The configuration directory .
32 * -nosettime Don't keep checking the time to avoid drift (default).
33 * -settime Keep checking the time to avoid drift.
35 * -debug Print out additional debugging info.
36 * -kerndev [OBSOLETE] The kernel device for AFS.
37 * -dontfork [OBSOLETE] Don't fork off as a new process.
38 * -daemons The number of background daemons to start (Default: 2).
39 * -rmtsys Also fires up an afs remote sys call (e.g. pioctl, setpag)
41 * -chunksize [n] 2^n is the chunksize to be used. 0 is default.
42 * -dcache The number of data cache entries.
43 * -biods Number of bkg I/O daemons (AIX3.1 only)
44 * -prealloc Number of preallocated "small" memory blocks
45 * -pininodes Number of inodes which can be spared from inode[] for
46 * pointing at Vfiles. If this is set too high, you may have
47 * system problems, which can only be ameliorated by changing
48 * NINODE (or equivalent) and rebuilding the kernel.
49 * This option is now disabled.
50 * -logfile [OBSOLETE] Place where to put the logfile (default in
52 * -waitclose make close calls always synchronous (slows em down, tho)
53 * -files_per_subdir [n] number of files per cache subdir. (def=2048)
54 * -shutdown Shutdown afs daemons
55 *---------------------------------------------------------------------------*/
57 #include <afsconfig.h>
58 #include <afs/param.h>
68 #include <potpourri.h>
69 #include <afs/afsutil.h>
76 #include <sys/types.h>
85 #ifdef HAVE_SYS_PARAM_H
86 #include <sys/param.h>
89 #ifdef HAVE_SYS_FS_TYPES_H
90 #include <sys/fs_types.h>
93 #ifdef HAVE_SYS_MOUNT_H
94 #include <sys/mount.h>
97 #ifdef HAVE_SYS_FCNTL_H
98 #include <sys/fcntl.h>
101 #ifdef HAVE_SYS_MNTTAB_H
102 #include <sys/mnttab.h>
105 #ifdef HAVE_SYS_MNTENT_H
106 #include <sys/mntent.h>
113 #ifdef HAVE_SYS_MOUNT_H
114 #include <sys/mount.h>
117 #ifdef HAVE_SYS_VFS_H
121 #ifdef HAVE_SYS_FSTYP_H
122 #include <sys/fstyp.h>
133 #include <netinet/in.h>
134 #include <afs/afs_args.h>
135 #include <afs/cellconfig.h>
137 #include <afs/afssyscalls.h>
138 #include <afs/afsutil.h>
144 #include <libdwarf.h>
145 void set_staticaddrs(void);
146 #endif /* AFS_SGI61_ENV */
147 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
149 #include <symconst.h>
154 #ifdef AFS_LINUX20_ENV
155 #include <sys/resource.h>
157 #ifdef AFS_DARWIN_ENV
158 #ifdef AFS_DARWIN80_ENV
159 #include <sys/ioctl.h>
161 #include <mach/mach.h>
162 /* Symbols from the DiskArbitration framework */
163 kern_return_t DiskArbStart(mach_port_t *);
164 kern_return_t DiskArbDiskAppearedWithMountpointPing_auto(char *, unsigned int,
166 #define DISK_ARB_NETWORK_DISK_FLAG 8
168 #include <mach/mach_port.h>
169 #include <mach/mach_interface.h>
170 #include <mach/mach_init.h>
172 #include <CoreFoundation/CoreFoundation.h>
174 #include <SystemConfiguration/SystemConfiguration.h>
175 #include <SystemConfiguration/SCDynamicStore.h>
177 #include <IOKit/pwr_mgt/IOPMLib.h>
178 #include <IOKit/IOMessage.h>
182 typedef struct DNSSDState
184 DNSServiceRef service;
185 CFRunLoopSourceRef source;
189 static io_connect_t root_port;
190 static IONotificationPortRef notify;
191 static io_object_t iterator;
192 static CFRunLoopSourceRef source;
193 static DNSSDState dnsstate;
195 static int event_pid;
197 #endif /* AFS_DARWIN_ENV */
200 #define MOUNT_AFS AFS_MOUNT_AFS
201 #endif /* MOUNT_AFS */
204 #include <sys/statvfs.h>
206 #if defined(AFS_SUN_ENV)
209 #if !defined(AFS_OSF_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
210 #include <sys/statfs.h>
220 #define CACHEINFOFILE "cacheinfo"
221 #define DCACHEFILE "CacheItems"
222 #define VOLINFOFILE "VolumeItems"
223 #define CELLINFOFILE "CellItems"
225 #define MAXIPADDRS 1024
227 char LclCellName[64];
229 #define MAX_CACHE_LOOPS 4
233 * Internet address (old style... should be updated). This was pulled out of the old 4.2
234 * version of <netinet/in.h>, since it's still useful.
239 u_char s_b1, s_b2, s_b3, s_b4;
246 #define s_host S_un.S_un_b.s_b2 /* host on imp */
247 #define s_net S_un.S_un_b.s_b1 /* network */
248 #define s_imp S_un.S_un_w.s_w2 /* imp */
249 #define s_impno S_un.S_un_b.s_b4 /* imp # */
250 #define s_lh S_un.S_un_b.s_b3 /* logical host */
253 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
254 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
255 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
256 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
257 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
260 * Global configuration variables.
262 afs_int32 enable_rxbind = 0;
263 afs_int32 afs_shutdown = 0;
264 afs_int32 cacheBlocks; /*Num blocks in the cache */
265 afs_int32 cacheFiles; /*Optimal # of files in workstation cache */
268 afs_int32 cacheStatEntries; /*Number of stat cache entries */
269 char cacheBaseDir[1024]; /*Where the workstation AFS cache lives */
270 char confDir[1024]; /*Where the workstation AFS configuration lives */
271 char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
272 char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
273 char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
274 char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
275 char fullpn_VFile[1024]; /*Full pathname of data cache files */
276 char *vFilePtr; /*Ptr to the number part of above pathname */
277 int sawCacheMountDir = 0; /* from cmd line */
278 int sawCacheBaseDir = 0;
279 int sawCacheBlocks = 0;
280 int sawDCacheSize = 0;
282 int sawCacheStatEntries = 0;
283 char cacheMountDir[1024]; /*Mount directory for AFS */
284 char rootVolume[64] = "root.afs"; /*AFS root volume name */
285 afs_int32 cacheSetTime = FALSE; /*Keep checking time to avoid drift? */
286 afs_int32 isHomeCell; /*Is current cell info for the home cell? */
288 int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
290 int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
292 int ownerRWmode = 0600; /*Read/write OK by owner */
293 static int filesSet = 0; /*True if number of files explicitly set */
294 static int nFilesPerDir = 2048; /* # files per cache dir */
295 static int nDaemons = 2; /* Number of background daemons */
296 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
297 static int dCacheSize; /* # of dcache entries */
298 static int vCacheSize = 200; /* # of volume cache entries */
299 static int rootVolSet = 0; /*True if root volume name explicitly set */
300 int addrNum; /*Cell server address index being printed */
301 static int cacheFlags = 0; /*Flags to cache manager */
302 static int nBiods = 5; /* AIX3.1 only */
303 static int preallocs = 400; /* Def # of allocated memory blocks */
304 static int enable_peer_stats = 0; /* enable rx stats */
305 static int enable_process_stats = 0; /* enable rx stats */
307 static int enable_afsdb = 0; /* enable AFSDB support */
309 static int enable_dynroot = 0; /* enable dynroot support */
310 static int enable_fakestat = 0; /* enable fakestat support */
311 static int enable_backuptree = 0; /* enable backup tree support */
312 static int enable_nomount = 0; /* do not mount */
313 static int enable_splitcache = 0;
315 static int inodes = 60; /* VERY conservative, but has to be */
317 int afsd_verbose = 0; /*Are we being chatty? */
318 int afsd_debug = 0; /*Are we printing debugging info? */
319 int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
322 #define AFSD_INO_T ino64_t
324 #define AFSD_INO_T afs_uint32
326 struct afsd_file_list {
328 struct afsd_file_list *next;
330 struct afsd_file_list **cache_dir_filelist = NULL;
331 int *cache_dir_list = NULL; /* Array of cache subdirs */
332 int *dir_for_V = NULL; /* Array: dir of each cache file.
333 * -1: file does not exist
334 * -2: file exists in top-level
335 * >=0: file exists in Dxxx
337 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
339 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
340 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
341 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
342 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
343 struct afs_cacheParams cparams; /* params passed to cache manager */
345 static int HandleMTab();
347 #ifdef AFS_DARWIN_ENV
349 afsd_sleep_callback(void * refCon, io_service_t service,
350 natural_t messageType, void * messageArgument )
354 switch (messageType) {
355 case kIOMessageCanSystemSleep:
356 /* Idle sleep is about to kick in; can
357 prevent sleep by calling IOCancelPowerChange, otherwise
358 if we don't ack in 30s the system sleeps anyway */
361 IOAllowPowerChange(root_port, (long)messageArgument);
364 case kIOMessageSystemWillSleep:
365 /* The system WILL go to sleep. Ack or suffer delay */
367 IOAllowPowerChange(root_port, (long)messageArgument);
370 case kIOMessageSystemWillRestart:
371 /* The system WILL restart. Ack or suffer delay */
373 IOAllowPowerChange(root_port, (long)messageArgument);
376 case kIOMessageSystemWillPowerOn:
377 case kIOMessageSystemHasPoweredOn:
378 /* coming back from sleep */
380 IOAllowPowerChange(root_port, (long)messageArgument);
384 IOAllowPowerChange(root_port, (long)messageArgument);
390 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
392 /* parse multihomed address files */
393 afs_int32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
399 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
400 AFSDIR_CLIENT_NETINFO_FILEPATH,
401 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
404 /* Note we're refreshing */
405 code = code | 0x40000000;
406 call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
408 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
412 /* This function is called when the system's ip addresses may have changed. */
414 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
416 CFRunLoopTimerRef timer;
418 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
419 0.0, 0, 0, afsd_update_addresses, NULL);
420 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
421 kCFRunLoopDefaultMode);
426 afsd_event_cleanup(int signo) {
427 DNSSDState *query = &dnsstate;
429 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
431 IODeregisterForSystemPower(iterator);
432 IOServiceClose(root_port);
433 IONotificationPortDestroy(notify);
438 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
440 afsd_install_events(void)
442 SCDynamicStoreContext ctx = {0};
443 SCDynamicStoreRef store;
445 root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator);
448 CFRunLoopAddSource(CFRunLoopGetCurrent(),
449 IONotificationPortGetRunLoopSource(notify),
450 kCFRunLoopDefaultMode);
454 store = SCDynamicStoreCreate (NULL,
455 CFSTR ("AddIPAddressListChangeCallbackSCF"),
456 afsd_ipaddr_callback, &ctx);
461 /* Request IPV4 address change notification */
462 keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity
463 (NULL, kSCDynamicStoreDomainState,
464 kSCCompAnyRegex, kSCEntNetIPv4));
467 /* This should tell us when the hostname(s) change. do we care? */
468 keys[N] = SCDynamicStoreKeyCreateHostNames (NULL);
471 if (keys[0] != NULL) {
472 CFArrayRef pattern_array;
474 pattern_array = CFArrayCreate (NULL, keys, 1,
475 &kCFTypeArrayCallBacks);
477 if (pattern_array != NULL)
479 SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array);
480 source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0);
482 CFRelease (pattern_array);
492 if (source != NULL) {
493 CFRunLoopAddSource (CFRunLoopGetCurrent(),
494 source, kCFRunLoopDefaultMode);
497 signal(SIGTERM, afsd_event_cleanup);
503 /* ParseArgs is now obsolete, being handled by cmd */
505 /*------------------------------------------------------------------------------
509 * Open the file containing the description of the workstation's AFS cache
510 * and pull out its contents. The format of this file is as follows:
512 * cacheMountDir:cacheBaseDir:cacheBlocks
518 * 0 if everything went well,
522 * Nothing interesting.
526 *---------------------------------------------------------------------------*/
529 ParseCacheInfoFile(void)
531 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
532 FILE *cachefd; /*Descriptor for cache info file */
533 int parseResult; /*Result of our fscanf() */
534 afs_int32 tCacheBlocks;
535 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
538 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
540 cachefd = fopen(fullpn_CacheInfo, "r");
542 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
547 * Parse the contents of the cache info file. All chars up to the first
548 * colon are the AFS mount directory, all chars to the next colon are the
549 * full path name of the workstation cache directory and all remaining chars
550 * represent the number of blocks in the cache.
552 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
554 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
555 tCacheBaseDir, &tCacheBlocks);
558 * Regardless of how the parse went, we close the cache info file.
562 if (parseResult == EOF || parseResult < 3) {
563 printf("%s: Format error in cache info file!\n", rn);
564 if (parseResult == EOF)
565 printf("\tEOF encountered before any field parsed.\n");
567 printf("\t%d out of 3 fields successfully parsed.\n",
573 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
575 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
577 /* now copy in the fields not explicitly overridden by cmd args */
578 if (!sawCacheMountDir)
579 strcpy(cacheMountDir, tmd);
580 if (!sawCacheBaseDir)
581 strcpy(cacheBaseDir, tbd);
583 cacheBlocks = tCacheBlocks;
586 printf("%s: Cache info file successfully parsed:\n", rn);
588 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
589 tmd, tbd, tCacheBlocks);
591 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
592 return (PartSizeOverflow(tbd, cacheBlocks));
599 * All failures to open the partition are ignored. Also if the cache dir
600 * isn't a mounted partition it's also ignored since we can't guarantee
601 * what will be stored afterwards. Too many if's. This is now purely
602 * advisory. ODS with over 2G partition also gives warning message.
605 * 0 if everything went well,
609 PartSizeOverflow(char *path, int cs)
611 int bsize = -1, totalblks, mint;
613 struct statvfs statbuf;
615 if (statvfs(path, &statbuf) != 0) {
618 ("statvfs failed on %s; skip checking for adequate partition space\n",
622 totalblks = statbuf.f_blocks;
623 bsize = statbuf.f_frsize;
625 if (strcmp(statbuf.f_basetype, "jfs")) {
626 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
627 path, statbuf.f_basetype);
630 #endif /* AFS_AIX51_ENV */
632 #else /* AFS_HAVE_STATVFS */
633 struct statfs statbuf;
635 if (statfs(path, &statbuf) < 0) {
638 ("statfs failed on %s; skip checking for adequate partition space\n",
642 totalblks = statbuf.f_blocks;
643 bsize = statbuf.f_bsize;
646 return 0; /* sucess */
648 /* now free and totalblks are in fragment units, but we want them in 1K units */
650 totalblks *= (bsize / 1024);
652 totalblks /= (1024 / bsize);
655 mint = totalblks / 100 * 95;
658 ("Cache size (%d) must be less than 95%% of partition size (which is %d). Lower cache size\n",
666 /*-----------------------------------------------------------------------------
670 * Given the final component of a filename expected to be a data cache file,
671 * return the integer corresponding to the file. Note: we reject names that
672 * are not a ``V'' followed by an integer. We also reject those names having
673 * the right format but lying outside the range [0..cacheFiles-1].
676 * fname : Char ptr to the filename to parse.
677 * max : integer for the highest number to accept
680 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
684 * Nothing interesting.
688 *---------------------------------------------------------------------------*/
691 doGetXFileNumber(fname, filechar, maxNum)
696 int computedVNumber; /*The computed file number we return */
697 int filenameLen; /*Number of chars in filename */
698 int currDigit; /*Current digit being processed */
701 * The filename must have at least two characters, the first of which must be a ``filechar''
702 * and the second of which cannot be a zero unless the file is exactly two chars long.
704 filenameLen = strlen(fname);
707 if (fname[0] != filechar)
709 if ((filenameLen > 2) && (fname[1] == '0'))
713 * Scan through the characters in the given filename, failing immediately if a non-digit
716 for (currDigit = 1; currDigit < filenameLen; currDigit++)
717 if (isdigit(fname[currDigit]) == 0)
721 * All relevant characters are digits. Pull out the decimal number they represent.
722 * Reject it if it's out of range, otherwise return it.
724 computedVNumber = atoi(++fname);
725 if (computedVNumber < cacheFiles)
726 return (computedVNumber);
732 GetVFileNumber(fname, maxFile)
736 return doGetXFileNumber(fname, 'V', maxFile);
740 GetDDirNumber(fname, maxDir)
744 return doGetXFileNumber(fname, 'D', maxDir);
748 /*-----------------------------------------------------------------------------
752 * Given a full pathname for a file we need to create for the workstation AFS
753 * cache, go ahead and create the file.
756 * fname : Full pathname of file to create.
757 * statp : A pointer to a stat buffer which, if NON-NULL, will be
761 * 0 iff the file was created,
765 * The given cache file has been found to be missing.
769 *---------------------------------------------------------------------------*/
772 CreateCacheSubDir(basename, dirNum)
776 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
780 /* Build the new cache subdirectory */
781 sprintf(dir, "%s/D%d", basename, dirNum);
784 printf("%s: Creating cache subdir '%s'\n", rn, dir);
786 if ((ret = mkdir(dir, 0700)) != 0) {
787 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
793 /* Mark this directory as created */
794 cache_dir_list[dirNum] = 0;
796 /* And return success */
801 MoveCacheFile(basename, fromDir, toDir, cacheFile, maxDir)
803 int fromDir, toDir, cacheFile, maxDir;
805 static char rn[] = "MoveCacheFile";
806 char from[1024], to[1024];
809 if (cache_dir_list[toDir] < 0
810 && (ret = CreateCacheSubDir(basename, toDir))) {
811 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
815 /* Build the from,to dir */
817 /* old-style location */
818 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
820 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
824 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
827 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
829 if ((ret = rename(from, to)) != 0) {
830 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
831 from, to, ret, errno);
835 /* Reset directory pointer; fix file counts */
836 dir_for_V[cacheFile] = toDir;
837 cache_dir_list[toDir]++;
838 if (fromDir < maxDir && fromDir >= 0)
839 cache_dir_list[fromDir]--;
845 CreateCacheFile(fname, statp)
849 static char rn[] = "CreateCacheFile"; /*Routine name */
850 int cfd; /*File descriptor to AFS cache file */
851 int closeResult; /*Result of close() */
854 printf("%s: Creating cache file '%s'\n", rn, fname);
855 cfd = open(fname, createAndTrunc, ownerRWmode);
857 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
862 closeResult = fstat(cfd, statp);
865 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
870 closeResult = close(cfd);
873 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
882 CreateFileIfMissing(char *fullpn, int missing)
885 if (CreateCacheFile(fullpn, NULL))
886 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
891 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
893 if (unlink(fullpn_FileToDelete)) {
894 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
895 if (rmdir(fullpn_FileToDelete)) {
896 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
897 fullpn_FileToDelete, errno);
900 printf("%s: Can't unlink '%s', errno is %d\n", rn,
901 fullpn_FileToDelete, errno);
905 /*-----------------------------------------------------------------------------
909 * Sweep through the AFS cache directory, recording the inode number for
910 * each valid data cache file there. Also, delete any file that doesn't belong
911 * in the cache directory during this sweep, and remember which of the other
912 * residents of this directory were seen. After the sweep, we create any data
913 * cache files that were missing.
916 * vFilesFound : Set to the number of data cache files found.
919 * 0 if everything went well,
923 * This routine may be called several times. If the number of data cache files
924 * found is less than the global cacheFiles, then the caller will need to call it
925 * again to record the inodes of the missing zero-length data cache files created
926 * in the previous call.
929 * Fills up the global inode_for_V array, may create and/or delete files as
931 *---------------------------------------------------------------------------*/
935 doSweepAFSCache(vFilesFound, directory, dirNum, maxDir)
937 char *directory; /* /path/to/cache/directory */
938 int dirNum; /* current directory number */
939 int maxDir; /* maximum directory number */
941 static char rn[] = "doSweepAFSCache"; /* Routine Name */
942 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
943 char *fileToDelete; /*Ptr to last component of above */
944 DIR *cdirp; /*Ptr to cache directory structure */
946 struct dirent64 *currp; /*Current directory entry */
948 struct dirent *currp; /*Current directory entry */
950 int vFileNum; /*Data cache file's associated number */
951 int thisDir; /* A directory number */
955 printf("%s: Opening cache directory '%s'\n", rn, directory);
957 if (chmod(directory, 0700)) { /* force it to be 700 */
958 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
962 cdirp = opendir(directory);
963 if (cdirp == (DIR *) 0) {
964 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
969 * Scan the directory entries, remembering data cache file inodes
970 * and the existance of other important residents. Recurse into
971 * the data subdirectories.
973 * Delete all files and directories that don't belong here.
975 sprintf(fullpn_FileToDelete, "%s/", directory);
976 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
979 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
981 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
985 printf("%s: Current directory entry:\n", rn);
987 printf("\tinode=%lld, reclen=%d, name='%s'\n", currp->d_ino,
988 currp->d_reclen, currp->d_name);
990 printf("\tinode=%d, reclen=%d, name='%s'\n", currp->d_ino,
991 currp->d_reclen, currp->d_name);
996 * If dirNum < 0, we are a top-level cache directory and should
997 * only contain sub-directories and other sundry files. Therefore,
998 * V-files are valid only if dirNum >= 0, and Directories are only
999 * valid if dirNum < 0.
1002 if (*(currp->d_name) == 'V'
1003 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1006 * Found a valid data cache filename. Remember this
1007 * file's inode, directory, and bump the number of files found
1008 * total and in this directory.
1010 inode_for_V[vFileNum] = currp->d_ino;
1011 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1014 /* If we're in a real subdir, mark this file to be moved
1015 * if we've already got too many files in this directory
1017 assert(dirNum >= 0);
1018 cache_dir_list[dirNum]++; /* keep directory's file count */
1019 if (cache_dir_list[dirNum] > nFilesPerDir) {
1020 /* Too many files -- add to filelist */
1021 struct afsd_file_list *tmp = (struct afsd_file_list *)
1022 malloc(sizeof(*tmp));
1025 ("%s: MALLOC FAILED allocating file_list entry\n",
1028 tmp->fileNum = vFileNum;
1029 tmp->next = cache_dir_filelist[dirNum];
1030 cache_dir_filelist[dirNum] = tmp;
1035 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1036 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1038 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1039 /* Found a valid cachefile sub-Directory. Remember this number
1040 * and recurse into it. Note that subdirs cannot have subdirs.
1043 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1045 /* This directory is going away, but figure out if there
1046 * are any cachefiles in here that should be saved by
1047 * moving them to other cache directories. This directory
1048 * will be removed later.
1053 /* Save the highest directory number we've seen */
1054 if (vFileNum > highDir)
1057 /* If this directory is staying, be sure to mark it as 'found' */
1059 cache_dir_list[vFileNum] = 0;
1061 /* Print the dirname for recursion */
1062 sprintf(fileToDelete, "%s", currp->d_name);
1064 /* Note: vFileNum is the directory number */
1066 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1067 (retval == 1 ? 0 : -1));
1069 printf("%s: Recursive sweep failed on directory %s\n", rn,
1073 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1075 * Found the file holding the dcache entries.
1077 missing_DCacheFile = 0;
1078 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1080 * Found the file holding the volume info.
1082 missing_VolInfoFile = 0;
1083 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1085 * Found the file holding the cell info.
1087 missing_CellInfoFile = 0;
1088 } else if ((strcmp(currp->d_name, ".") == 0)
1089 || (strcmp(currp->d_name, "..") == 0) ||
1090 #ifdef AFS_DECOSF_ENV
1091 /* these are magic AdvFS files */
1092 (strcmp(currp->d_name, ".tags") == 0)
1093 || (strcmp(currp->d_name, "quota.user") == 0)
1094 || (strcmp(currp->d_name, "quota.group") == 0) ||
1096 #ifdef AFS_LINUX22_ENV
1097 /* this is the ext3 journal file */
1098 (strcmp(currp->d_name, ".journal") == 0) ||
1100 (strcmp(currp->d_name, "lost+found") == 0)) {
1102 * Don't do anything - this file is legit, and is to be left alone.
1106 * This file/directory doesn't belong in the cache. Nuke it.
1108 sprintf(fileToDelete, "%s", currp->d_name);
1110 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1111 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1118 * Create all the cache files that are missing.
1120 CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile);
1121 CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile);
1122 CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile);
1124 /* ADJUST CACHE FILES */
1126 /* First, let's walk through the list of files and figure out
1127 * if there are any leftover files in extra directories or
1128 * missing files. Move the former and create the latter in
1129 * subdirs with extra space.
1132 thisDir = 0; /* Keep track of which subdir has space */
1134 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
1135 if (dir_for_V[vFileNum] == -1) {
1136 /* This file does not exist. Create it in the first
1137 * subdir that still has extra space.
1139 while (thisDir < maxDir
1140 && cache_dir_list[thisDir] >= nFilesPerDir)
1142 if (thisDir >= maxDir)
1143 printf("%s: can't find directory to create V%d\n", rn,
1147 assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0);
1148 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
1150 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1151 if (cache_dir_list[thisDir] < 0
1152 && CreateCacheSubDir(directory, thisDir))
1153 printf("%s: Can't create directory for '%s'\n", rn,
1155 if (CreateCacheFile(fullpn_VFile, &statb))
1156 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1158 inode_for_V[vFileNum] = statb.st_ino;
1159 dir_for_V[vFileNum] = thisDir;
1160 cache_dir_list[thisDir]++;
1165 } else if (dir_for_V[vFileNum] >= maxDir
1166 || dir_for_V[vFileNum] == -2) {
1167 /* This file needs to move; move it to the first subdir
1168 * that has extra space. (-2 means it's in the toplevel)
1170 while (thisDir < maxDir
1171 && cache_dir_list[thisDir] >= nFilesPerDir)
1173 if (thisDir >= maxDir)
1174 printf("%s: can't find directory to move V%d\n", rn,
1178 (directory, dir_for_V[vFileNum], thisDir, vFileNum,
1180 /* Cannot move. Ignore this file??? */
1187 /* At this point, we've moved all of the valid cache files
1188 * into the valid subdirs, and created all the extra
1189 * cachefiles we need to create. Next, rebalance any subdirs
1190 * with too many cache files into the directories with not
1191 * enough cache files. Note that thisDir currently sits at
1192 * the lowest subdir that _may_ have room.
1195 for (dirNum = 0; dirNum < maxDir; dirNum++) {
1196 struct afsd_file_list *thisFile;
1198 for (thisFile = cache_dir_filelist[dirNum];
1199 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
1200 thisFile = thisFile->next) {
1201 while (thisDir < maxDir
1202 && cache_dir_list[thisDir] >= nFilesPerDir)
1204 if (thisDir >= maxDir)
1205 printf("%s: can't find directory to move V%d\n", rn,
1209 (directory, dirNum, thisDir, thisFile->fileNum,
1211 /* Cannot move. Ignore this file??? */
1215 } /* for each file to move */
1216 } /* for each directory */
1218 /* Remove any directories >= maxDir -- they should be empty */
1219 for (; highDir >= maxDir; highDir--) {
1220 sprintf(fileToDelete, "D%d", highDir);
1221 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1227 * Close the directory, return success.
1230 printf("%s: Closing cache directory.\n", rn);
1236 CheckCacheBaseDir(char *dir)
1238 struct stat statbuf;
1241 return "cache base dir not specified";
1243 if (stat(dir, &statbuf) != 0) {
1244 return "unable to stat cache base directory";
1247 /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */
1249 #ifdef AFS_LINUX24_ENV
1252 struct statfs statfsbuf;
1254 res = statfs(dir, &statfsbuf);
1256 return "unable to statfs cache base directory";
1258 if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */
1259 return "cannot use reiserfs as cache partition";
1260 } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */
1261 return "cannot use xfs as cache partition";
1262 } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */
1263 return "cannot use tmpfs as cache partition";
1264 } else if (statfsbuf.f_type != 0xEF53) {
1265 return "must use ext2 or ext3 for cache partition";
1273 struct statfs statfsbuf;
1276 res = statfs(dir, &statfsbuf);
1278 return "unable to statfs cache base directory";
1281 if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) {
1282 return "unable to determine filesystem type for cache base dir";
1285 if (strcmp(name, "hfs")) {
1286 return "can only use hfs filesystem for cache partition on hpux";
1295 struct stat statmnt, statci;
1297 if ((stat(dir, &statci) == 0)
1298 && ((vfstab = fopen(MNTTAB, "r")) != NULL)) {
1299 while (getmntent(vfstab, &mnt) == 0) {
1300 if (strcmp(dir, mnt.mnt_mountp) != 0) {
1304 if (cp = hasmntopt(&mnt, "dev="))
1306 (int)strtol(cp + strlen("dev="), (char **)NULL,
1309 if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0))
1310 rdev = statmnt.st_dev;
1312 if ((rdev == statci.st_dev)
1313 && (hasmntopt(&mnt, "logging") != NULL)) {
1317 "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n";
1331 SweepAFSCache(vFilesFound)
1334 static char rn[] = "SweepAFSCache"; /*Routine name */
1335 int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir;
1340 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1342 printf("%s: Memory Cache, no cache sweep done\n", rn);
1346 if (cache_dir_list == NULL) {
1347 cache_dir_list = (int *)malloc(maxDir * sizeof(*cache_dir_list));
1348 if (cache_dir_list == NULL) {
1349 printf("%s: Malloc Failed!\n", rn);
1352 for (i = 0; i < maxDir; i++)
1353 cache_dir_list[i] = -1; /* Does not exist */
1356 if (cache_dir_filelist == NULL) {
1357 cache_dir_filelist = (struct afsd_file_list **)
1358 malloc(maxDir * sizeof(*cache_dir_filelist));
1359 if (cache_dir_filelist == NULL) {
1360 printf("%s: Malloc Failed!\n", rn);
1363 memset(cache_dir_filelist, 0, maxDir * sizeof(*cache_dir_filelist));
1366 if (dir_for_V == NULL) {
1367 dir_for_V = (int *)malloc(cacheFiles * sizeof(*dir_for_V));
1368 if (dir_for_V == NULL) {
1369 printf("%s: Malloc Failed!\n", rn);
1372 for (i = 0; i < cacheFiles; i++)
1373 dir_for_V[i] = -1; /* Does not exist */
1376 /* Note, setting dirNum to -2 here will cause cachefiles found in
1377 * the toplevel directory to be marked in directory "-2". This
1378 * allows us to differentiate between 'file not seen' (-1) and
1379 * 'file seen in top-level' (-2). Then when we try to move the
1380 * file into a subdirectory, we know it's in the top-level instead
1381 * of some other cache subdir.
1383 return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir);
1387 ConfigCell(struct afsconf_cell *aci, char *arock, struct afsconf_dir *adir)
1391 afs_int32 cellFlags = 0;
1392 afs_int32 hosts[MAXHOSTSPERCELL];
1394 /* figure out if this is the home cell */
1395 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1397 cellFlags = 2; /* not home, suid is forbidden */
1399 /* build address list */
1400 for (i = 0; i < MAXHOSTSPERCELL; i++)
1401 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1403 if (aci->linkedCell)
1404 cellFlags |= 4; /* Flag that linkedCell arg exists,
1405 * for upwards compatibility */
1407 /* configure one cell */
1408 code = call_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */
1409 aci->name, /* cell name */
1410 cellFlags, /* is this the home cell? */
1411 aci->linkedCell); /* Linked cell, if any */
1413 printf("Adding cell '%s': error %d\n", aci->name, code);
1418 ConfigCellAlias(struct afsconf_cellalias *aca,
1419 char *arock, struct afsconf_dir *adir)
1421 /* push the alias into the kernel */
1422 call_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1426 #ifdef AFS_AFSDB_ENV
1428 AfsdbLookupHandler()
1430 afs_int32 kernelMsg[64];
1431 char acellName[128];
1433 struct afsconf_cell acellInfo;
1438 acellName[0] = '\0';
1440 #ifdef AFS_DARWIN_ENV
1441 /* Fork the event handler also. */
1444 afsd_install_events();
1446 } else if (code != -1) {
1451 /* On some platforms you only get 4 args to an AFS call */
1452 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1454 call_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1455 if (code) { /* Something is wrong? */
1460 if (*acellName == 1) /* Shutting down */
1463 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1468 kernelMsg[0] = acellInfo.numServers;
1469 if (acellInfo.timeout)
1470 kernelMsg[1] = acellInfo.timeout - time(0);
1473 for (i = 0; i < acellInfo.numServers; i++)
1474 kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1475 strncpy(acellName, acellInfo.name, sizeof(acellName));
1476 acellName[sizeof(acellName) - 1] = '\0';
1479 #ifdef AFS_DARWIN_ENV
1480 kill(event_pid, SIGTERM);
1487 #include <sys/ioctl.h>
1490 #ifdef AFS_SGI65_ENV
1491 #define SET_RTPRI(P) { \
1492 struct sched_param sp; \
1493 sp.sched_priority = P; \
1494 if (sched_setscheduler(0, SCHED_RR, &sp)<0) { \
1495 perror("sched_setscheduler"); \
1498 #define SET_AFSD_RTPRI() SET_RTPRI(68)
1499 #define SET_RX_RTPRI() SET_RTPRI(199)
1501 #ifdef AFS_LINUX20_ENV
1502 #define SET_AFSD_RTPRI()
1503 #define SET_RX_RTPRI() do { if (setpriority(PRIO_PROCESS, 0, -10)<0) \
1504 perror("setting rx priority"); \
1507 #define SET_AFSD_RTPRI()
1508 #define SET_RX_RTPRI()
1512 mainproc(struct cmd_syndesc *as, char *arock)
1514 static char rn[] = "afsd"; /*Name of this routine */
1515 afs_int32 code; /*Result of fork() */
1517 int currVFile; /*Current AFS cache file number passed in */
1518 int mountFlags; /*Flags passed to mount() */
1519 int lookupResult; /*Result of GetLocalCellName() */
1520 int cacheIteration; /*How many times through cache verification */
1521 int vFilesFound; /*How many data cache files were found in sweep */
1522 struct afsconf_dir *cdir; /* config dir */
1524 char *fsTypeMsg = NULL;
1528 afs_int32 vfs1_type = -1;
1529 #ifdef AFS_SGI65_ENV
1530 struct sched_param sp;
1533 #ifdef AFS_SGI_VNODE_GLUE
1534 if (afs_init_kernel_config(-1) < 0) {
1535 printf("Can't determine NUMA configuration, not starting AFS.\n");
1540 /* call atoi on the appropriate parsed results */
1541 if (as->parms[0].items) {
1543 cacheBlocks = atoi(as->parms[0].items->data);
1546 if (as->parms[1].items) {
1548 cacheFiles = atoi(as->parms[1].items->data);
1549 filesSet = 1; /* set when spec'd on cmd line */
1551 if (as->parms[2].items) {
1553 strcpy(rootVolume, as->parms[2].items->data);
1556 if (as->parms[3].items) {
1558 cacheStatEntries = atoi(as->parms[3].items->data);
1559 sawCacheStatEntries = 1;
1561 if (as->parms[4].items) {
1563 cacheBaseDir[0] = '\0';
1564 sawCacheBaseDir = 1;
1565 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1567 if (as->parms[5].items) {
1569 strcpy(cacheBaseDir, as->parms[5].items->data);
1570 sawCacheBaseDir = 1;
1572 if (as->parms[6].items) {
1574 strcpy(cacheMountDir, as->parms[6].items->data);
1575 sawCacheMountDir = 1;
1577 if (as->parms[7].items) {
1579 nDaemons = atoi(as->parms[7].items->data);
1581 if (as->parms[8].items) {
1583 cacheSetTime = FALSE;
1585 if (as->parms[9].items) {
1589 if (as->parms[10].items) {
1593 if (as->parms[11].items) {
1598 if (as->parms[12].items) {
1600 chunkSize = atoi(as->parms[12].items->data);
1601 if (chunkSize < 0 || chunkSize > 30) {
1603 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1607 if (as->parms[13].items) {
1609 dCacheSize = atoi(as->parms[13].items->data);
1612 if (as->parms[14].items) {
1614 vCacheSize = atoi(as->parms[14].items->data);
1616 if (as->parms[15].items) {
1618 #ifndef AFS_AIX32_ENV
1620 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1622 nBiods = atoi(as->parms[15].items->data);
1626 if (as->parms[16].items) {
1628 preallocs = atoi(as->parms[16].items->data);
1631 if (as->parms[17].items) {
1633 inodes = atoi(as->parms[17].items->data);
1636 strcpy(confDir, AFSDIR_CLIENT_ETC_DIRPATH);
1637 if (as->parms[17].items) {
1639 strcpy(confDir, as->parms[17].items->data);
1641 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1642 if (as->parms[18].items) {
1644 printf("afsd: Ignoring obsolete -logfile flag\n");
1646 if (as->parms[19].items) {
1648 afsd_CloseSynch = 1;
1650 if (as->parms[20].items) {
1654 * Cold shutdown is the default
1656 printf("afsd: Shutting down all afs processes and afs state\n");
1657 code = call_syscall(AFSOP_SHUTDOWN, 1);
1659 printf("afsd: AFS still mounted; Not shutting down\n");
1664 if (as->parms[21].items) {
1665 /* -enable_peer_stats */
1666 enable_peer_stats = 1;
1668 if (as->parms[22].items) {
1669 /* -enable_process_stats */
1670 enable_process_stats = 1;
1672 if (as->parms[23].items) {
1673 /* -mem_alloc_sleep */
1674 cacheFlags |= AFSCALL_INIT_MEMCACHE_SLEEP;
1676 if (as->parms[24].items) {
1678 #ifdef AFS_AFSDB_ENV
1681 printf("afsd: No AFSDB support; ignoring -afsdb");
1684 if (as->parms[25].items) {
1685 /* -files_per_subdir */
1686 int res = atoi(as->parms[25].items->data);
1687 if (res < 10 || res > (1 << 30)) {
1689 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1690 as->parms[25].items->data);
1695 if (as->parms[26].items) {
1699 if (as->parms[27].items) {
1701 enable_fakestat = 2;
1703 if (as->parms[28].items) {
1705 enable_fakestat = 1;
1707 if (as->parms[29].items) {
1711 if (as->parms[30].items) {
1713 enable_backuptree = 1;
1715 if (as->parms[31].items) {
1719 if (as->parms[32].items) {
1721 cacheSetTime = TRUE;
1724 /* set rx_extraPackets */
1725 if (as->parms[33].items) {
1727 int rxpck = atoi(as->parms[33].items->data);
1728 printf("afsd: set rxpck = %d\n", rxpck);
1729 code = call_syscall(AFSOP_SET_RXPCK, rxpck);
1731 printf("afsd: failed to set rxpck\n");
1735 if (as->parms[34].items) {
1737 if (!as->parms[34].items->data ||
1738 ((c = strchr(as->parms[34].items->data, '/')) == NULL))
1740 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1742 ropct = atoi((char *)c + 1);
1744 rwpct = atoi((char *)as->parms[30].items->data);
1745 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1747 enable_splitcache = 1;
1752 * Pull out all the configuration info for the workstation's AFS cache and
1753 * the cellular community we're willing to let our users see.
1755 cdir = afsconf_Open(confDir);
1757 printf("afsd: some file missing or bad in %s\n", confDir);
1762 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1764 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1768 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1771 /* parse cacheinfo file if this is a diskcache */
1772 if (ParseCacheInfoFile()) {
1776 /* do some random computations in memcache case to get things to work
1777 * reasonably no matter which parameters you set.
1779 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1780 /* memory cache: size described either as blocks or dcache entries, but
1784 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1786 if (sawDCacheSize) {
1787 if (chunkSize == 0) {
1788 chunkSize = 13; /* 8k default chunksize for memcache */
1790 if (sawCacheBlocks) {
1792 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1796 /* compute the cache size based on # of chunks times the chunk size */
1797 i = (1 << chunkSize); /* bytes per chunk */
1798 cacheBlocks = i * dCacheSize;
1799 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1801 if (chunkSize == 0) {
1802 /* Try to autotune the memcache chunksize based on size
1803 * of memcache. This is done on the assumption that approx
1804 * 1024 chunks is suitable, it's a balance between enough
1805 * chunks to be useful and ramping up nicely when using larger
1806 * memcache to improve bulk read/write performance
1809 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1812 /* compute the dcache size from overall cache size and chunk size */
1813 if (chunkSize > 10) {
1814 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1815 } else if (chunkSize < 10) {
1816 dCacheSize = (cacheBlocks << (10 - chunkSize));
1818 dCacheSize = cacheBlocks;
1820 /* don't have to set sawDCacheSize here since it isn't overwritten
1821 * by ParseCacheInfoFile.
1825 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
1827 /* kernel computes # of dcache entries as min of cacheFiles and
1828 * dCacheSize, so we now make them equal.
1830 cacheFiles = dCacheSize;
1833 * Compute the number of cache files based on cache size,
1834 * but only if -files isn't given on the command line.
1835 * Don't let # files be so small as to prevent full utilization
1836 * of the cache unless user has explicitly asked for it.
1838 if (chunkSize == 0) {
1839 /* Set chunksize to 256kB - 1MB depending on cache size */
1840 if (cacheBlocks < 500000) {
1842 } else if (cacheBlocks < 1000000) {
1849 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
1851 cacheFiles = max(cacheFiles, 1000);
1853 /* Always allow more files than chunks. Presume average V-file
1854 * is ~67% of a chunk... (another guess, perhaps Honeyman will
1855 * have a grad student write a paper). i is KILOBYTES.
1857 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
1858 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
1860 /* never permit more files than blocks, while leaving space for
1861 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
1862 * CacheItems is 50 Bytes / file (== 1K/20)
1864 #define CACHEITMSZ (cacheFiles / 20)
1865 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
1866 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
1867 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
1869 /* Sanity check: If the obtained number of disk cache files
1870 * is larger than the number of available (4k) disk blocks, we're
1871 * doing something wrong. Fail hard so we can fix the bug instead
1872 * of silently hiding it like before */
1874 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
1876 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
1877 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
1880 if (cacheFiles < 100)
1881 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
1885 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
1888 /* This actually needs to
1890 2) not second-guess when a chunksize comes from the command line
1891 3) be less, um, small. 2^2??
1893 /* Sanity check chunkSize */
1894 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
1895 chunkSize = min(chunkSize, i);
1896 chunkSize = max(chunkSize, 2);
1898 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
1901 if (!sawDCacheSize) {
1902 dCacheSize = cacheFiles / 2;
1903 if (dCacheSize > 10000) {
1906 if (dCacheSize < 2000) {
1910 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
1913 if (!sawCacheStatEntries) {
1914 if (chunkSize <= 13) {
1915 cacheStatEntries = dCacheSize / 4;
1916 } else if (chunkSize >= 16) {
1917 cacheStatEntries = dCacheSize * 1.5;
1919 cacheStatEntries = dCacheSize;
1922 printf("%s: cacheStatEntries autotuned to %d\n", rn,
1927 * Create and zero the inode table for the desired cache files.
1929 inode_for_V = (AFSD_INO_T *) malloc(cacheFiles * sizeof(AFSD_INO_T));
1930 if (inode_for_V == (AFSD_INO_T *) 0) {
1932 ("%s: malloc() failed for cache file inode table with %d entries.\n",
1936 memset(inode_for_V, '\0', (cacheFiles * sizeof(AFSD_INO_T)));
1938 printf("%s: %d inode_for_V entries at 0x%x, %d bytes\n", rn,
1939 cacheFiles, inode_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
1942 * Set up all the pathnames we'll need for later.
1944 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
1945 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
1946 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
1947 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
1948 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
1950 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)
1951 && (fsTypeMsg = CheckCacheBaseDir(cacheBaseDir))) {
1953 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
1955 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
1961 * Set up all the kernel processes needed for AFS.
1964 setpgrp(getpid(), 0);
1967 /* Initialize RX daemons and services */
1969 /* initialize the rx random number generator from user space */
1971 /* parse multihomed address files */
1972 afs_int32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
1976 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
1977 AFSDIR_CLIENT_NETINFO_FILEPATH,
1978 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
1981 code = code | 0x80000000;
1982 call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
1984 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
1988 /* Set realtime priority for most threads to same as for biod's. */
1991 #ifdef AFS_SGI53_ENV
1992 #ifdef AFS_SGI61_ENV
1994 #else /* AFS_SGI61_ENV */
1995 code = get_nfsstaticaddr();
1997 call_syscall(AFSOP_NFSSTATICADDR, code);
1998 #endif /* AFS_SGI61_ENV */
1999 #endif /* AFS_SGI_53_ENV */
2001 /* Start listener, then callback listener. Lastly, start rx event daemon.
2002 * Change in ordering is so that Linux port has socket fd in listener
2004 * preallocs are passed for both listener and callback server. Only
2005 * the one which actually does the initialization uses them though.
2007 if (preallocs < cacheStatEntries + 50)
2008 preallocs = cacheStatEntries + 50;
2009 #ifdef RXK_LISTENER_ENV
2011 printf("%s: Forking rx listener daemon.\n", rn);
2015 SET_RX_RTPRI(); /* max advised for non-interrupts */
2016 call_syscall(AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2017 enable_process_stats);
2020 #ifdef AFS_SUN510_ENV
2021 waitpid((pid_t) -1, NULL, 0);
2025 printf("%s: Forking rx callback listener.\n", rn);
2029 call_syscall(AFSOP_START_RXCALLBACK, preallocs);
2032 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
2034 printf("%s: Forking rxevent daemon.\n", rn);
2038 SET_RX_RTPRI(); /* max advised for non-interrupts */
2039 call_syscall(AFSOP_RXEVENT_DAEMON);
2044 #ifdef AFS_AFSDB_ENV
2047 printf("%s: Forking AFSDB lookup handler.\n", rn);
2050 /* Since the AFSDB lookup handler runs as a user process,
2051 * need to drop the controlling TTY, etc.
2053 if (daemon(0, 0) == -1) {
2054 printf("Error starting AFSDB lookup handler: %s\n",
2058 AfsdbLookupHandler();
2064 code = call_syscall(AFSOP_BASIC_INIT, 1);
2066 printf("%s: Error %d in basic initialization.\n", rn, code);
2071 * Tell the kernel some basic information about the workstation's cache.
2075 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2076 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2078 memset(&cparams, '\0', sizeof(cparams));
2079 cparams.cacheScaches = cacheStatEntries;
2080 cparams.cacheFiles = cacheFiles;
2081 cparams.cacheBlocks = cacheBlocks;
2082 cparams.cacheDcaches = dCacheSize;
2083 cparams.cacheVolumes = vCacheSize;
2084 cparams.chunkSize = chunkSize;
2085 cparams.setTimeFlag = cacheSetTime;
2086 cparams.memCacheFlag = cacheFlags;
2088 cparams.inodes = inodes;
2090 call_syscall(AFSOP_CACHEINIT, &cparams);
2092 /* do it before we init the cache inodes */
2093 if (enable_splitcache) {
2094 call_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2095 call_syscall(AFSOP_BUCKETPCT, 2, ropct);
2098 if (afsd_CloseSynch)
2099 call_syscall(AFSOP_CLOSEWAIT);
2102 * Sweep the workstation AFS cache directory, remembering the inodes of
2103 * valid files and deleting extraneous files. Keep sweeping until we
2104 * have the right number of data cache files or we've swept too many
2107 * This also creates files in the cache directory like VolumeItems and
2108 * CellItems, and thus must be ran before those are sent to the kernel.
2111 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2113 /* Memory-cache based system doesn't need any of this */
2114 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2117 if (SweepAFSCache(&vFilesFound)) {
2118 printf("%s: Error on sweep %d of workstation AFS cache \
2119 directory.\n", rn, cacheIteration);
2124 ("%s: %d out of %d data cache files found in sweep %d.\n",
2125 rn, vFilesFound, cacheFiles, cacheIteration);
2126 } while ((vFilesFound < cacheFiles)
2127 && (cacheIteration < MAX_CACHE_LOOPS));
2128 } else if (afsd_verbose)
2129 printf("%s: Using memory cache, not swept\n", rn);
2132 * Pass the kernel the name of the workstation cache file holding the
2136 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2138 /* once again, meaningless for a memory-based cache. */
2139 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2140 call_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2143 * Pass the kernel the name of the workstation cache file holding the
2147 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2148 fullpn_CellInfoFile);
2149 call_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2151 if (enable_dynroot) {
2153 printf("%s: Enabling dynroot support in kernel.\n", rn);
2154 code = call_syscall(AFSOP_SET_DYNROOT, 1);
2156 printf("%s: Error enabling dynroot support.\n", rn);
2159 if (enable_fakestat) {
2161 printf("%s: Enabling fakestat support in kernel.\n", rn);
2162 code = call_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2164 printf("%s: Error enabling fakestat support.\n", rn);
2167 if (enable_backuptree) {
2169 printf("%s: Enabling backup tree support in kernel.\n", rn);
2170 code = call_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2172 printf("%s: Error enabling backup tree support.\n", rn);
2176 * Tell the kernel about each cell in the configuration.
2178 afsconf_CellApply(cdir, ConfigCell, NULL);
2179 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2182 * Set the primary cell name.
2184 call_syscall(AFSOP_SET_THISCELL, LclCellName);
2186 /* Initialize AFS daemon threads. */
2188 printf("%s: Forking AFS daemon.\n", rn);
2192 call_syscall(AFSOP_START_AFS);
2197 printf("%s: Forking Check Server Daemon.\n", rn);
2201 code = call_syscall(AFSOP_START_CS);
2203 printf("%s: No check server daemon in client.\n", rn);
2208 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2209 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2210 /* Add one because for sgi we always "steal" the first daemon for a
2211 * different task if we only have a 4K stack.
2215 for (i = 0; i < nDaemons; i++) {
2219 #ifdef AFS_AIX32_ENV
2220 call_syscall(AFSOP_START_BKG, 0);
2222 call_syscall(AFSOP_START_BKG);
2227 #ifdef AFS_AIX32_ENV
2229 nBiods = nDaemons * 2;
2232 for (i = 0; i < nBiods; i++) {
2234 if (code == 0) { /* Child */
2235 call_syscall(AFSOP_START_BKG, nBiods);
2242 * If the root volume has been explicitly set, tell the kernel.
2246 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2248 call_syscall(AFSOP_ROOTVOLUME, rootVolume);
2252 * Pass the kernel the name of the workstation cache file holding the
2253 * volume information.
2256 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2257 fullpn_VolInfoFile);
2258 /* once again, meaningless for a memory-based cache. */
2259 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2260 call_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2263 * Give the kernel the names of the AFS files cached on the workstation's
2268 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2269 rn, cacheFiles, cacheBaseDir);
2270 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... and again ... */
2271 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2272 #ifdef AFS_SGI62_ENV
2273 call_syscall(AFSOP_CACHEINODE,
2274 (afs_uint32) (inode_for_V[currVFile] >> 32),
2275 (afs_uint32) (inode_for_V[currVFile] & 0xffffffff));
2277 call_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2284 * All the necessary info has been passed into the kernel to run an AFS
2285 * system. Give the kernel our go-ahead.
2288 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2290 call_syscall(AFSOP_GO, cacheSetTime);
2293 * At this point, we have finished passing the kernel all the info
2294 * it needs to set up the AFS. Mount the AFS root.
2296 printf("%s: All AFS daemons started.\n", rn);
2299 printf("%s: Forking trunc-cache daemon.\n", rn);
2303 call_syscall(AFSOP_START_TRUNCDAEMON);
2307 if (!enable_nomount) {
2309 mountFlags = 0; /* Read/write file system, can do setuid() */
2310 #if defined(AFS_SUN_ENV) || defined(AFS_SUN5_ENV)
2312 mountFlags |= MS_DATA;
2314 mountFlags |= M_NEWTYPE; /* This searches by name in vfs_conf.c so don't need to recompile vfs.c because MOUNT_MAXTYPE has changed; it seems that Sun fixed this at last... */
2318 #if defined(AFS_HPUX100_ENV)
2319 mountFlags |= MS_DATA;
2323 printf("%s: Mounting the AFS root on '%s', flags: %d.\n", rn,
2324 cacheMountDir, mountFlags);
2325 #if defined(AFS_FBSD60_ENV)
2326 /* data must be non-NULL but is otherwise ignored */
2327 if ((mount(MOUNT_AFS, cacheMountDir, mountFlags, rn)) < 0) {
2328 #elif defined(AFS_FBSD_ENV)
2329 if ((mount("AFS", cacheMountDir, mountFlags, (caddr_t) 0)) < 0) {
2330 #elif defined(AFS_AIX_ENV)
2332 #elif defined(AFS_HPUX100_ENV)
2333 if ((mount("", cacheMountDir, mountFlags, "afs", NULL, 0)) < 0) {
2334 #elif defined(AFS_SUN5_ENV)
2335 if ((mount("AFS", cacheMountDir, mountFlags, "afs", NULL, 0)) < 0) {
2336 #elif defined(AFS_SGI_ENV)
2337 mountFlags = MS_FSS;
2338 if ((mount(MOUNT_AFS, cacheMountDir, mountFlags, (caddr_t) MOUNT_AFS))
2340 #elif defined(AFS_LINUX20_ENV)
2341 if ((mount("AFS", cacheMountDir, MOUNT_AFS, 0, NULL)) < 0) {
2343 /* This is the standard mount used by the suns and rts */
2344 if ((mount(MOUNT_AFS, cacheMountDir, mountFlags, (caddr_t) 0)) < 0) {
2346 printf("%s: Can't mount AFS on %s(%d)\n", rn, cacheMountDir,
2357 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2366 * Exit successfully.
2371 #include "AFS_component_version_number.c"
2375 main(int argc, char **argv)
2377 struct cmd_syndesc *ts;
2379 ts = cmd_CreateSyntax(NULL, mainproc, NULL, "start AFS");
2380 cmd_AddParm(ts, "-blocks", CMD_SINGLE, CMD_OPTIONAL,
2381 "1024 byte blocks in cache");
2382 cmd_AddParm(ts, "-files", CMD_SINGLE, CMD_OPTIONAL, "files in cache");
2383 cmd_AddParm(ts, "-rootvol", CMD_SINGLE, CMD_OPTIONAL,
2384 "name of AFS root volume");
2385 cmd_AddParm(ts, "-stat", CMD_SINGLE, CMD_OPTIONAL,
2386 "number of stat entries");
2387 cmd_AddParm(ts, "-memcache", CMD_FLAG, CMD_OPTIONAL, "run diskless");
2388 cmd_AddParm(ts, "-cachedir", CMD_SINGLE, CMD_OPTIONAL, "cache directory");
2389 cmd_AddParm(ts, "-mountdir", CMD_SINGLE, CMD_OPTIONAL, "mount location");
2390 cmd_AddParm(ts, "-daemons", CMD_SINGLE, CMD_OPTIONAL,
2391 "number of daemons to use");
2392 cmd_AddParm(ts, "-nosettime", CMD_FLAG, CMD_OPTIONAL,
2393 "don't set the time");
2394 cmd_AddParm(ts, "-verbose", CMD_FLAG, CMD_OPTIONAL,
2395 "display lots of information");
2396 cmd_AddParm(ts, "-rmtsys", CMD_FLAG, CMD_OPTIONAL,
2397 "start NFS rmtsysd program");
2398 cmd_AddParm(ts, "-debug", CMD_FLAG, CMD_OPTIONAL, "display debug info");
2399 cmd_AddParm(ts, "-chunksize", CMD_SINGLE, CMD_OPTIONAL,
2400 "log(2) of chunk size");
2401 cmd_AddParm(ts, "-dcache", CMD_SINGLE, CMD_OPTIONAL,
2402 "number of dcache entries");
2403 cmd_AddParm(ts, "-volumes", CMD_SINGLE, CMD_OPTIONAL,
2404 "number of volume entries");
2405 cmd_AddParm(ts, "-biods", CMD_SINGLE, CMD_OPTIONAL,
2406 "number of bkg I/O daemons (aix vm)");
2408 cmd_AddParm(ts, "-prealloc", CMD_SINGLE, CMD_OPTIONAL,
2409 "number of 'small' preallocated blocks");
2411 cmd_AddParm(ts, "-pininodes", CMD_SINGLE, CMD_OPTIONAL,
2412 "number of inodes to hog");
2414 cmd_AddParm(ts, "-confdir", CMD_SINGLE, CMD_OPTIONAL,
2415 "configuration directory");
2416 cmd_AddParm(ts, "-logfile", CMD_SINGLE, CMD_OPTIONAL,
2417 "Place to keep the CM log");
2418 cmd_AddParm(ts, "-waitclose", CMD_FLAG, CMD_OPTIONAL,
2419 "make close calls synchronous");
2420 cmd_AddParm(ts, "-shutdown", CMD_FLAG, CMD_OPTIONAL,
2421 "Shutdown all afs state");
2422 cmd_AddParm(ts, "-enable_peer_stats", CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2423 "Collect rpc statistics by peer");
2424 cmd_AddParm(ts, "-enable_process_stats", CMD_FLAG,
2425 CMD_OPTIONAL | CMD_HIDE,
2426 "Collect rpc statistics for this process");
2427 cmd_AddParm(ts, "-mem_alloc_sleep", CMD_FLAG, (CMD_OPTIONAL | CMD_HIDE),
2428 "Allow sleeps when allocating memory cache");
2429 cmd_AddParm(ts, "-afsdb", CMD_FLAG, (CMD_OPTIONAL
2430 #ifndef AFS_AFSDB_ENV
2433 ), "Enable AFSDB support");
2434 cmd_AddParm(ts, "-files_per_subdir", CMD_SINGLE, CMD_OPTIONAL,
2435 "log(2) of the number of cache files per cache subdirectory");
2436 cmd_AddParm(ts, "-dynroot", CMD_FLAG, CMD_OPTIONAL,
2437 "Enable dynroot support");
2438 cmd_AddParm(ts, "-fakestat", CMD_FLAG, CMD_OPTIONAL,
2439 "Enable fakestat support for cross-cell mounts");
2440 cmd_AddParm(ts, "-fakestat-all", CMD_FLAG, CMD_OPTIONAL,
2441 "Enable fakestat support for all mounts");
2442 cmd_AddParm(ts, "-nomount", CMD_FLAG, CMD_OPTIONAL, "Do not mount AFS");
2443 cmd_AddParm(ts, "-backuptree", CMD_FLAG, CMD_OPTIONAL,
2444 "Prefer backup volumes for mointpoints in backup volumes");
2445 cmd_AddParm(ts, "-rxbind", CMD_FLAG, CMD_OPTIONAL,
2446 "Bind the Rx socket (one interface only)");
2447 cmd_AddParm(ts, "-settime", CMD_FLAG, CMD_OPTIONAL, "set the time");
2448 cmd_AddParm(ts, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2449 "set rx_extraPackets to this value");
2450 cmd_AddParm(ts, "-splitcache", CMD_SINGLE, CMD_OPTIONAL,
2451 "Percentage RW versus RO in cache (specify as 60/40)");
2453 return (cmd_Dispatch(argc, argv));
2458 #define MOUNTED_TABLE MNT_MNTTAB
2461 #define MOUNTED_TABLE MNTTAB
2463 #define MOUNTED_TABLE MOUNTED
2470 #if (defined (AFS_SUN_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)) && !defined(AFS_SUN58_ENV)
2474 struct mnttab tmntent;
2476 memset(&tmntent, '\0', sizeof(struct mnttab));
2477 if (!(tfilep = fopen(MOUNTED_TABLE, "a+"))) {
2478 printf("Can't open %s\n", MOUNTED_TABLE);
2482 tmntent.mnt_special = "AFS";
2483 tmntent.mnt_mountp = cacheMountDir;
2484 tmntent.mnt_fstype = "xx";
2485 tmntent.mnt_mntopts = "rw";
2486 sprintf(tbuf, "%ld", (long)time((time_t *) 0));
2487 tmntent.mnt_time = tbuf;
2488 putmntent(tfilep, &tmntent);
2491 #if defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)
2492 struct mntent tmntent;
2494 tfilep = setmntent("/etc/mtab", "a+");
2495 tmntent.mnt_fsname = "AFS";
2496 tmntent.mnt_dir = cacheMountDir;
2497 tmntent.mnt_type = "afs";
2498 tmntent.mnt_opts = "rw";
2499 tmntent.mnt_freq = 1;
2500 tmntent.mnt_passno = 3;
2501 addmntent(tfilep, &tmntent);
2504 struct mntent tmntent;
2506 memset(&tmntent, '\0', sizeof(struct mntent));
2507 tfilep = setmntent(MOUNTED_TABLE, "a+");
2509 printf("Can't open %s for write; Not adding afs entry to it\n",
2513 tmntent.mnt_fsname = "AFS";
2514 tmntent.mnt_dir = cacheMountDir;
2515 tmntent.mnt_type = "xx";
2516 tmntent.mnt_opts = "rw";
2517 tmntent.mnt_freq = 1;
2518 tmntent.mnt_passno = 3;
2520 tmntent.mnt_type = "afs";
2521 tmntent.mnt_time = time(0);
2522 tmntent.mnt_cnode = 0;
2524 addmntent(tfilep, &tmntent);
2526 #endif /* AFS_SGI_ENV */
2527 #endif /* AFS_SUN5_ENV */
2528 #endif /* unreasonable systems */
2529 #ifdef AFS_DARWIN_ENV
2530 mach_port_t diskarb_port;
2531 kern_return_t status;
2533 status = DiskArbStart(&diskarb_port);
2534 if (status == KERN_SUCCESS) {
2536 DiskArbDiskAppearedWithMountpointPing_auto("AFS",
2537 DISK_ARB_NETWORK_DISK_FLAG,
2542 #endif /* AFS_DARWIN_ENV */
2546 #if !defined(AFS_SGI_ENV) && !defined(AFS_AIX32_ENV)
2548 call_syscall(param1, param2, param3, param4, param5, param6, param7)
2549 long param1, param2, param3, param4, param5, param6, param7;
2552 #ifdef AFS_LINUX20_ENV
2554 struct afsprocdata syscall_data;
2555 int fd = open(PROC_SYSCALL_FNAME, O_RDWR);
2557 fd = open(PROC_SYSCALL_ARLA_FNAME, O_RDWR);
2563 param4 = (long)eparm;
2565 syscall_data.syscall = AFSCALL_CALL;
2566 syscall_data.param1 = param1;
2567 syscall_data.param2 = param2;
2568 syscall_data.param3 = param3;
2569 syscall_data.param4 = param4;
2571 error = ioctl(fd, VIOC_SYSCALL, &syscall_data);
2575 #ifdef AFS_DARWIN80_ENV
2576 struct afssysargs syscall_data;
2577 int fd = open(SYSCALL_DEV_FNAME,O_RDWR);
2578 syscall_data.syscall = AFSCALL_CALL;
2579 syscall_data.param1 = param1;
2580 syscall_data.param2 = param2;
2581 syscall_data.param3 = param3;
2582 syscall_data.param4 = param4;
2583 syscall_data.param5 = param5;
2584 syscall_data.param6 = param6;
2586 error = ioctl(fd, VIOC_SYSCALL, &syscall_data);
2592 error=syscall_data.retval;
2595 syscall(AFS_SYSCALL, AFSCALL_CALL, param1, param2, param3, param4,
2596 param5, param6, param7);
2600 printf("SScall(%d, %d, %d)=%d ", AFS_SYSCALL, AFSCALL_CALL, param1,
2604 #else /* AFS_AIX32_ENV */
2605 #if defined(AFS_SGI_ENV)
2606 call_syscall(call, parm0, parm1, parm2, parm3, parm4)
2611 error = afs_syscall(call, parm0, parm1, parm2, parm3, parm4);
2613 printf("SScall(%d, %d)=%d ", call, parm0, error);
2618 call_syscall(call, parm0, parm1, parm2, parm3, parm4, parm5, parm6)
2621 return syscall(AFSCALL_CALL, call, parm0, parm1, parm2, parm3, parm4,
2624 #endif /* AFS_SGI_ENV */
2625 #endif /* AFS_AIX32_ENV */
2629 /* Special handling for AIX's afs mount operation since they require much more miscl. information before making the vmount(2) syscall */
2630 #include <sys/vfs.h>
2632 #define ROUNDUP(x) (((x) + 3) & ~3)
2636 struct vmount *vmountp;
2639 size = sizeof(struct vmount) + ROUNDUP(strlen(cacheMountDir) + 1) + 5 * 4;
2640 /* Malloc the vmount structure */
2641 if ((vmountp = (struct vmount *)malloc(size)) == (struct vmount *)NULL) {
2642 printf("Can't allocate space for the vmount structure (AIX)\n");
2646 /* zero out the vmount structure */
2647 memset(vmountp, '\0', size);
2649 /* transfer info into the vmount structure */
2650 vmountp->vmt_revision = VMT_REVISION;
2651 vmountp->vmt_length = size;
2652 vmountp->vmt_fsid.fsid_dev = 0;
2653 vmountp->vmt_fsid.fsid_type = AFS_MOUNT_AFS;
2654 vmountp->vmt_vfsnumber = 0;
2655 vmountp->vmt_time = 0; /* We'll put the time soon! */
2656 vmountp->vmt_flags = VFS_DEVMOUNT; /* read/write permission */
2657 vmountp->vmt_gfstype = AFS_MOUNT_AFS;
2658 vmountdata(vmountp, "AFS", cacheMountDir, "", "", "", "rw");
2660 /* Do the actual mount system call */
2661 error = vmount(vmountp, size);
2666 vmountdata(struct vmount * vmtp, char *obj, char *stub, char *host,
2667 char *hostsname, char *info, char *args)
2675 vdp = (struct data *)vmtp->vmt_data;
2676 vdp->vmt_off = sizeof(struct vmount);
2677 size = ROUNDUP(strlen(obj) + 1);
2678 vdp->vmt_size = size;
2679 strcpy(vmt2dataptr(vmtp, VMT_OBJECT), obj);
2683 vdp->vmt_off = vdprev->vmt_off + size;
2684 size = ROUNDUP(strlen(stub) + 1);
2685 vdp->vmt_size = size;
2686 strcpy(vmt2dataptr(vmtp, VMT_STUB), stub);
2690 vdp->vmt_off = vdprev->vmt_off + size;
2691 size = ROUNDUP(strlen(host) + 1);
2692 vdp->vmt_size = size;
2693 strcpy(vmt2dataptr(vmtp, VMT_HOST), host);
2697 vdp->vmt_off = vdprev->vmt_off + size;
2698 size = ROUNDUP(strlen(hostsname) + 1);
2699 vdp->vmt_size = size;
2700 strcpy(vmt2dataptr(vmtp, VMT_HOSTNAME), hostsname);
2705 vdp->vmt_off = vdprev->vmt_off + size;
2706 size = ROUNDUP(strlen(info) + 1);
2707 vdp->vmt_size = size;
2708 strcpy(vmt2dataptr(vmtp, VMT_INFO), info);
2712 vdp->vmt_off = vdprev->vmt_off + size;
2713 size = ROUNDUP(strlen(args) + 1);
2714 vdp->vmt_size = size;
2715 strcpy(vmt2dataptr(vmtp, VMT_ARGS), args);
2717 #endif /* AFS_AIX_ENV */
2719 #ifdef AFS_SGI53_ENV
2720 #ifdef AFS_SGI61_ENV
2721 /* The dwarf structures are searched to find entry points of static functions
2722 * and the addresses of static variables. The file name as well as the
2723 * sybmol name is reaquired.
2726 /* Contains list of names to find in given file. */
2728 char *name; /* Name of variable or function. */
2729 afs_hyper_t addr; /* Address of function, undefined if not found. */
2730 Dwarf_Half type; /* DW_AT_location for vars, DW_AT_lowpc for func's */
2731 char found; /* set if found. */
2735 char *file; /* Name of file containing vars or funcs */
2736 staticAddrList *addrList; /* List of vars and/or funcs. */
2737 int nAddrs; /* # of addrList's */
2738 int found; /* set if we've found this file already. */
2741 /* routines used to find addresses in /unix */
2742 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2743 void findMDebugStaticAddresses(staticNameList *, int, int);
2745 void findDwarfStaticAddresses(staticNameList *, int);
2746 void findElfAddresses(Dwarf_Debug, Dwarf_Die, staticNameList *);
2747 void getElfAddress(Dwarf_Debug, Dwarf_Die, staticAddrList *);
2749 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2750 #define AFS_N_FILELISTS 2
2751 #define AFS_SYMS_NEEDED 3
2752 #else /* AFS_SGI62_ENV */
2753 #define AFS_N_FILELISTS 1
2754 #endif /* AFS_SGI62_ENV */
2759 set_staticaddrs(void)
2761 staticNameList fileList[AFS_N_FILELISTS];
2763 fileList[0].addrList =
2764 (staticAddrList *) calloc(1, sizeof(staticAddrList));
2765 if (!fileList[0].addrList) {
2766 printf("set_staticaddrs: Can't calloc fileList[0].addrList\n");
2769 fileList[0].file = "nfs_server.c";
2770 fileList[0].found = 0;
2771 fileList[0].nAddrs = 1;
2772 fileList[0].addrList[0].name = "rfsdisptab_v2";
2773 fileList[0].addrList[0].type = DW_AT_location;
2774 fileList[0].addrList[0].found = 0;
2776 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2777 fileList[1].addrList =
2778 (staticAddrList *) calloc(2, sizeof(staticAddrList));
2779 if (!fileList[1].addrList) {
2780 printf("set_staticaddrs: Can't malloc fileList[1].addrList\n");
2783 fileList[1].file = "uipc_socket.c";
2784 fileList[1].found = 0;
2785 fileList[1].nAddrs = 2;
2786 fileList[1].addrList[0].name = "sblock";
2787 fileList[1].addrList[0].type = DW_AT_low_pc;
2788 fileList[1].addrList[0].found = 0;
2789 fileList[1].addrList[1].name = "sbunlock";
2790 fileList[1].addrList[1].type = DW_AT_low_pc;
2791 fileList[1].addrList[1].found = 0;
2793 if (64 != sysconf(_SC_KERN_POINTERS))
2794 findMDebugStaticAddresses(fileList, AFS_N_FILELISTS, AFS_SYMS_NEEDED);
2796 #endif /* AFS_SGI62_ENV */
2797 findDwarfStaticAddresses(fileList, AFS_N_FILELISTS);
2799 if (fileList[0].addrList[0].found) {
2800 call_syscall(AFSOP_NFSSTATICADDR2, fileList[0].addrList[0].addr.high,
2801 fileList[0].addrList[0].addr.low);
2804 printf("NFS V2 is not present in the kernel.\n");
2806 free(fileList[0].addrList);
2807 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2808 if (fileList[1].addrList[0].found && fileList[1].addrList[1].found) {
2809 call_syscall(AFSOP_SBLOCKSTATICADDR2,
2810 fileList[1].addrList[0].addr.high,
2811 fileList[1].addrList[0].addr.low,
2812 fileList[1].addrList[1].addr.high,
2813 fileList[1].addrList[1].addr.low);
2815 if (!fileList[1].addrList[0].found)
2816 printf("Can't find %s in kernel. Exiting.\n",
2817 fileList[1].addrList[0].name);
2818 if (!fileList[1].addrList[0].found)
2819 printf("Can't find %s in kernel. Exiting.\n",
2820 fileList[1].addrList[1].name);
2823 free(fileList[1].addrList);
2824 #endif /* AFS_SGI62_ENV */
2828 /* Find addresses for static variables and functions. */
2830 findDwarfStaticAddresses(staticNameList * nameList, int nLists)
2837 char *hname = (char *)0;
2838 Dwarf_Unsigned dwarf_access = O_RDONLY;
2839 Dwarf_Debug dwarf_debug;
2840 Dwarf_Error dwarf_error;
2841 Dwarf_Unsigned dwarf_cu_header_length;
2842 Dwarf_Unsigned dwarf_abbrev_offset;
2843 Dwarf_Half dwarf_address_size;
2844 Dwarf_Unsigned next_cu_header;
2845 Dwarf_Die dwarf_die;
2846 Dwarf_Die dwarf_next_die;
2847 Dwarf_Die dwarf_child_die;
2849 if (elf_version(EV_CURRENT) == EV_NONE) {
2850 printf("findDwarfStaticAddresses: Bad elf version.\n");
2854 if ((fd = open("/unix", O_RDONLY, 0)) < 0) {
2855 printf("findDwarfStaticAddresses: Failed to open /unix.\n");
2859 dwarf_init(fd, dwarf_access, NULL, NULL, &dwarf_debug, &dwarf_error);
2860 if (code != DW_DLV_OK) {
2861 /* Nope hope for the elves and dwarves, try intermediate code. */
2868 /* Run through the headers until we find ones for files we've
2869 * specified in nameList.
2872 dwarf_next_cu_header(dwarf_debug, &dwarf_cu_header_length, NULL,
2873 &dwarf_abbrev_offset, &dwarf_address_size,
2874 &next_cu_header, &dwarf_error);
2875 if (code == DW_DLV_NO_ENTRY) {
2877 } else if (code == DW_DLV_ERROR) {
2878 printf("findDwarfStaticAddresses: Error reading headers: %s\n",
2879 dwarf_errmsg(dwarf_error));
2883 code = dwarf_siblingof(dwarf_debug, NULL, &dwarf_die, &dwarf_error);
2884 if (code != DW_DLV_OK) {
2885 printf("findDwarfStaticAddresses: Can't get first die. %s\n",
2886 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2890 /* This is the header, test the name. */
2891 code = dwarf_diename(dwarf_die, &hname, &dwarf_error);
2892 if (code == DW_DLV_OK) {
2893 s = strrchr(hname, '/');
2894 for (i = 0; i < nLists; i++) {
2895 if (s && !strcmp(s + 1, nameList[i].file)) {
2896 findElfAddresses(dwarf_debug, dwarf_die, &nameList[i]);
2903 ("findDwarfStaticAddresses: Can't get name of current header. %s\n",
2904 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2907 dwarf_dealloc(dwarf_debug, hname, DW_DLA_STRING);
2909 if (found >= nLists) { /* we're done */
2914 /* Frees up all allocated space. */
2915 (void)dwarf_finish(dwarf_debug, &dwarf_error);
2920 findElfAddresses(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_die,
2921 staticNameList * nameList)
2924 Dwarf_Error dwarf_error;
2925 Dwarf_Die dwarf_next_die;
2926 Dwarf_Die dwarf_child_die;
2927 Dwarf_Attribute dwarf_return_attr;
2928 char *vname = (char *)0;
2932 /* Drop into this die to find names in addrList. */
2933 code = dwarf_child(dwarf_die, &dwarf_child_die, &dwarf_error);
2934 if (code != DW_DLV_OK) {
2935 printf("findElfAddresses: Can't get child die. %s\n",
2936 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2940 /* Try to find names in each sibling. */
2941 dwarf_next_die = (Dwarf_Die) 0;
2943 code = dwarf_diename(dwarf_child_die, &vname, &dwarf_error);
2944 /* It's possible that some siblings don't have names. */
2945 if (code == DW_DLV_OK) {
2946 for (i = 0; i < nameList->nAddrs; i++) {
2947 if (!nameList->addrList[i].found) {
2948 if (!strcmp(vname, nameList->addrList[i].name)) {
2949 getElfAddress(dwarf_debug, dwarf_child_die,
2950 &(nameList->addrList[i]));
2958 dwarf_dealloc(dwarf_debug, dwarf_next_die, DW_DLA_DIE);
2960 if (found >= nameList->nAddrs) { /* we're done. */
2964 dwarf_next_die = dwarf_child_die;
2966 dwarf_siblingof(dwarf_debug, dwarf_next_die, &dwarf_child_die,
2969 } while (code == DW_DLV_OK);
2972 /* Get address out of current die. */
2974 getElfAddress(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_child_die,
2975 staticAddrList * addrList)
2978 Dwarf_Error dwarf_error;
2979 Dwarf_Attribute dwarf_return_attr;
2980 Dwarf_Bool dwarf_return_bool;
2981 Dwarf_Locdesc *llbuf = NULL;
2982 Dwarf_Signed listlen;
2983 off64_t addr = (off64_t) 0;
2987 dwarf_hasattr(dwarf_child_die, addrList->type, &dwarf_return_bool,
2989 if ((code != DW_DLV_OK) || (!dwarf_return_bool)) {
2990 printf("getElfAddress: no address given for %s. %s\n", addrList->name,
2991 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2995 dwarf_attr(dwarf_child_die, addrList->type, &dwarf_return_attr,
2997 if (code != DW_DLV_OK) {
2998 printf("getElfAddress: Can't get attribute. %s\n",
2999 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
3003 switch (addrList->type) {
3004 case DW_AT_location:
3006 dwarf_loclist(dwarf_return_attr, &llbuf, &listlen, &dwarf_error);
3007 if (code != DW_DLV_OK) {
3008 printf("getElfAddress: Can't get location for %s. %s\n",
3010 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
3013 if ((listlen != 1) || (llbuf[0].ld_cents != 1)) {
3014 printf("getElfAddress: %s has more than one address.\n",
3018 addr = llbuf[0].ld_s[0].lr_number;
3023 dwarf_lowpc(dwarf_child_die, (Dwarf_Addr *) & addr, &dwarf_error);
3024 if (code != DW_DLV_OK) {
3025 printf("getElfAddress: Can't get lowpc for %s. %s\n",
3027 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
3033 printf("getElfAddress: Bad case %d in switch.\n", addrList->type);
3037 addrList->addr.high = (addr >> 32) & 0xffffffff;
3038 addrList->addr.low = addr & 0xffffffff;
3039 addrList->found = 1;
3042 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
3043 /* Find symbols in the .mdebug section for 32 bit kernels. */
3046 * On 32bit platforms, we're still using the ucode compilers to build
3047 * the kernel, so we need to get our static text/data from the .mdebug
3048 * section instead of the .dwarf sections.
3050 /* SearchNameList searches our bizarre structs for the given string.
3051 * If found, sets the found bit and the address and returns 1.
3052 * Not found returns 0.
3055 SearchNameList(char *name, afs_uint32 addr, staticNameList * nameList,
3059 for (i = 0; i < nLists; i++) {
3060 for (j = 0; j < nameList[i].nAddrs; j++) {
3061 if (nameList[i].addrList[j].found)
3063 if (!strcmp(name, nameList[i].addrList[j].name)) {
3064 nameList[i].addrList[j].addr.high = 0;
3065 nameList[i].addrList[j].addr.low = addr;
3066 nameList[i].addrList[j].found = 1;
3075 SearchMDebug(Elf_Scn * scnp, Elf32_Shdr * shdrp, staticNameList * nameList,
3076 int nLists, int needed)
3078 long *buf = (long *)(elf_getdata(scnp, NULL)->d_buf);
3079 u_long addr, mdoff = shdrp->sh_offset;
3081 SYMR *symbase, *symp, *symend;
3082 FDR *fdrbase, *fdrp;
3084 char *strbase, *str;
3089 addr = (__psunsigned_t) buf;
3090 hdrp = (HDRR *) addr;
3092 /* setup base addresses */
3093 addr = (u_long) buf + (u_long) (hdrp->cbFdOffset - mdoff);
3094 fdrbase = (FDR *) addr;
3095 addr = (u_long) buf + (u_long) (hdrp->cbSymOffset - mdoff);
3096 symbase = (SYMR *) addr;
3097 addr = (u_long) buf + (u_long) (hdrp->cbSsOffset - mdoff);
3098 strbase = (char *)addr;
3100 #define KEEPER(a,b) ((a == stStaticProc && b == scText) || \
3101 (a == stStatic && (b == scData || b == scBss || \
3102 b == scSBss || b == scSData)))
3104 for (fdrp = fdrbase; fdrp < &fdrbase[hdrp->ifdMax]; fdrp++) {
3105 str = strbase + fdrp->issBase + fdrp->rss;
3107 /* local symbols for each fd */
3108 for (symp = &symbase[fdrp->isymBase];
3109 symp < &symbase[fdrp->isymBase + fdrp->csym]; symp++) {
3110 if (KEEPER(symp->st, symp->sc)) {
3111 if (symp->value == 0)
3114 str = strbase + fdrp->issBase + symp->iss;
3115 /* Look for AFS symbols of interest */
3116 if (SearchNameList(str, symp->value, nameList, nLists)) {
3118 if (nFound >= needed)
3127 * returns section with the name of scn_name, & puts its header in shdr64 or
3128 * shdr32 based on elf's file type
3132 findMDebugSection(Elf * elf, char *scn_name)
3136 Elf_Scn *scn = NULL;
3140 if ((ehdr32 = elf32_getehdr(elf)) == NULL)
3143 if ((scn = elf_nextscn(elf, scn)) == NULL)
3145 if ((shdr32 = elf32_getshdr(scn)) == NULL)
3149 elf_strptr(elf, ehdr32->e_shstrndx, shdr32->sh_name)));
3156 findMDebugStaticAddresses(staticNameList * nameList, int nLists, int needed)
3160 Elf_Scn *mdebug_scn;
3161 Elf32_Shdr *mdebug_shdr;
3164 if ((fd = open("/unix", O_RDONLY)) == -1) {
3165 printf("findMDebugStaticAddresses: Failed to open /unix.\n");
3169 (void)elf_version(EV_CURRENT);
3170 if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
3172 ("findMDebugStaticAddresses: /unix doesn't seem to be an elf file\n");
3176 mdebug_scn = findMDebugSection(elf, ".mdebug");
3178 printf("findMDebugStaticAddresses: Can't find .mdebug section.\n");
3181 mdebug_shdr = elf32_getshdr(mdebug_scn);
3183 printf("findMDebugStaticAddresses: Can't find .mdebug header.\n");
3187 (void)SearchMDebug(mdebug_scn, mdebug_shdr, nameList, nLists, needed);
3193 #endif /* AFS_SGI62_ENV */
3195 #else /* AFS_SGI61_ENV */
3197 struct nlist nlunix[] = {
3204 int i, j, kmem, count;
3206 if ((kmem = open("/dev/kmem", O_RDONLY)) < 0) {
3207 printf("Warning: can't open /dev/kmem\n");
3210 if ((j = nlist("/unix", nlunix)) < 0) {
3211 printf("Warning: can't nlist /unix\n");
3214 i = nlunix[0].n_value;
3215 if (lseek(kmem, i, L_SET /*0 */ ) != i) {
3216 printf("Warning: can't lseek to %x\n", i);
3219 if ((j = read(kmem, &count, sizeof count)) != sizeof count) {
3220 printf("WARNING: kmem read at %x failed\n", i);
3225 #endif /* AFS_SGI61_ENV */
3226 #endif /* AFS_SGI53_ENV */