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.
34 * -rxmaxmtu Set the max mtu to help with VPN issues.
36 * -disable-dynamic-vcaches Disable the use of -stat value as the starting size of
37 * the size of the vcache/stat cache pool,
38 * but increase that pool dynamically as needed.
39 * -debug Print out additional debugging info.
40 * -kerndev [OBSOLETE] The kernel device for AFS.
41 * -dontfork [OBSOLETE] Don't fork off as a new process.
42 * -daemons The number of background daemons to start (Default: 2).
43 * -rmtsys Also fires up an afs remote sys call (e.g. pioctl, setpag)
45 * -chunksize [n] 2^n is the chunksize to be used. 0 is default.
46 * -dcache The number of data cache entries.
47 * -biods Number of bkg I/O daemons (AIX3.1 only)
48 * -prealloc Number of preallocated "small" memory blocks
49 * -logfile [OBSOLETE] Place where to put the logfile (default in
51 * -waitclose make close calls always synchronous (slows em down, tho)
52 * -files_per_subdir [n] number of files per cache subdir. (def=2048)
53 * -shutdown Shutdown afs daemons
54 *---------------------------------------------------------------------------*/
56 #include <afsconfig.h>
57 #include <afs/param.h>
59 #ifdef IGNORE_SOME_GCC_WARNINGS
60 # pragma GCC diagnostic warning "-Wdeprecated-declarations"
71 #include <afs/afs_assert.h>
72 #include <afs/afsutil.h>
79 #include <sys/types.h>
86 /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is
88 #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV)
97 #ifdef HAVE_SYS_PARAM_H
98 #include <sys/param.h>
101 #ifdef HAVE_SYS_FS_TYPES_H
102 #include <sys/fs_types.h>
105 #if defined(HAVE_SYS_MOUNT_H) && !defined(AFS_ARM_DARWIN_ENV)
106 #include <sys/mount.h>
109 #ifdef HAVE_SYS_FCNTL_H
110 #include <sys/fcntl.h>
113 #ifdef HAVE_SYS_MNTTAB_H
114 #include <sys/mnttab.h>
117 #ifdef HAVE_SYS_MNTENT_H
118 #include <sys/mntent.h>
125 #ifdef HAVE_SYS_VFS_H
129 #ifdef HAVE_SYS_FSTYP_H
130 #include <sys/fstyp.h>
141 #include <netinet/in.h>
142 #include <afs/afs_args.h>
143 #include <afs/cellconfig.h>
145 #include <afs/afssyscalls.h>
146 #include <afs/afsutil.h>
147 #include <afs/sys_prototypes.h>
153 #include <libdwarf.h>
154 void set_staticaddrs(void);
155 #endif /* AFS_SGI61_ENV */
156 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
158 #include <symconst.h>
164 #ifdef AFS_DARWIN_ENV
165 #ifdef AFS_DARWIN80_ENV
166 #include <sys/ioctl.h>
167 #include <sys/xattr.h>
169 #include <CoreFoundation/CoreFoundation.h>
171 #include <SystemConfiguration/SystemConfiguration.h>
172 #include <SystemConfiguration/SCDynamicStore.h>
174 #ifndef AFS_ARM_DARWIN_ENV
175 #include <IOKit/pwr_mgt/IOPMLib.h>
176 #include <IOKit/IOMessage.h>
178 static io_connect_t root_port;
179 static IONotificationPortRef notify;
180 static io_object_t iterator;
183 static CFRunLoopSourceRef source;
185 static int event_pid;
187 #endif /* AFS_DARWIN_ENV */
189 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
190 #include <sys/statvfs.h>
192 #if defined(AFS_SUN_ENV)
195 #ifdef HAVE_SYS_STATFS_H
196 #include <sys/statfs.h>
205 #define CACHEINFOFILE "cacheinfo"
206 #define DCACHEFILE "CacheItems"
207 #define VOLINFOFILE "VolumeItems"
208 #define CELLINFOFILE "CellItems"
210 #define MAXIPADDRS 1024
212 char LclCellName[64];
214 #define MAX_CACHE_LOOPS 4
218 * Internet address (old style... should be updated). This was pulled out of the old 4.2
219 * version of <netinet/in.h>, since it's still useful.
224 u_char s_b1, s_b2, s_b3, s_b4;
233 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
234 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
235 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
236 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
237 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
240 * Global configuration variables.
242 static afs_int32 enable_rxbind = 0;
243 static afs_int32 afs_shutdown = 0;
244 static afs_int32 cacheBlocks; /*Num blocks in the cache */
245 static afs_int32 cacheFiles; /*Optimal # of files in workstation cache */
246 static afs_int32 rwpct = 0;
247 static afs_int32 ropct = 0;
248 static afs_int32 cacheStatEntries; /*Number of stat cache entries */
249 static char cacheBaseDir[1024]; /*Where the workstation AFS cache lives */
250 static char confDir[1024]; /*Where the workstation AFS configuration lives */
251 static char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
252 static char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
253 static char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
254 static char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
255 static char fullpn_VFile[1024]; /*Full pathname of data cache files */
256 static char *vFilePtr; /*Ptr to the number part of above pathname */
257 static int sawCacheMountDir = 0; /* from cmd line */
258 static int sawCacheBaseDir = 0;
259 static int sawCacheBlocks = 0;
260 static int sawDCacheSize = 0;
262 static int sawBiod = 0;
264 static int sawCacheStatEntries = 0;
265 char afsd_cacheMountDir[1024]; /*Mount directory for AFS */
266 static char rootVolume[64] = "root.afs"; /*AFS root volume name */
267 static afs_int32 cacheSetTime = 0; /*Keep checking time to avoid drift? */
269 static int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
271 static int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
273 static int ownerRWmode = 0600; /*Read/write OK by owner */
274 static int filesSet = 0; /*True if number of files explicitly set */
275 static int nFilesPerDir = 2048; /* # files per cache dir */
276 #if defined(AFS_CACHE_BYPASS)
277 #define AFSD_NDAEMONS 4
279 #define AFSD_NDAEMONS 2
281 static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */
282 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
283 static int dCacheSize; /* # of dcache entries */
284 static int vCacheSize = 200; /* # of volume cache entries */
285 static int rootVolSet = 0; /*True if root volume name explicitly set */
286 int addrNum; /*Cell server address index being printed */
287 static int cacheFlags = 0; /*Flags to cache manager */
289 static int nBiods = 5; /* AIX3.1 only */
291 static int preallocs = 400; /* Def # of allocated memory blocks */
292 static int enable_peer_stats = 0; /* enable rx stats */
293 static int enable_process_stats = 0; /* enable rx stats */
294 static int enable_afsdb = 0; /* enable AFSDB support */
295 static int enable_dynroot = 0; /* enable dynroot support */
296 static int enable_fakestat = 0; /* enable fakestat support */
297 static int enable_backuptree = 0; /* enable backup tree support */
298 static int enable_nomount = 0; /* do not mount */
299 static int enable_splitcache = 0;
300 static int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
301 int afsd_verbose = 0; /*Are we being chatty? */
302 int afsd_debug = 0; /*Are we printing debugging info? */
303 static int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
304 static int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */
307 #define AFSD_INO_T ino64_t
309 #define AFSD_INO_T afs_uint32
311 struct afsd_file_list {
313 struct afsd_file_list *next;
315 struct afsd_file_list **cache_dir_filelist = NULL;
316 int *cache_dir_list = NULL; /* Array of cache subdirs */
317 int *dir_for_V = NULL; /* Array: dir of each cache file.
318 * -1: file does not exist
319 * -2: file exists in top-level
320 * >=0: file exists in Dxxx
322 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
323 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
326 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
327 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
328 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
329 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
330 struct afs_cacheParams cparams; /* params passed to cache manager */
332 int PartSizeOverflow(char *path, int cs);
334 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
335 static void fork_rx_syscall_wait();
337 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
338 static void fork_rx_syscall();
340 static void fork_syscall();
342 #if defined(AFS_DARWIN_ENV) && !defined(AFS_ARM_DARWIN_ENV)
344 afsd_sleep_callback(void * refCon, io_service_t service,
345 natural_t messageType, void * messageArgument )
347 switch (messageType) {
348 case kIOMessageCanSystemSleep:
349 /* Idle sleep is about to kick in; can
350 prevent sleep by calling IOCancelPowerChange, otherwise
351 if we don't ack in 30s the system sleeps anyway */
354 IOAllowPowerChange(root_port, (long)messageArgument);
357 case kIOMessageSystemWillSleep:
358 /* The system WILL go to sleep. Ack or suffer delay */
360 IOAllowPowerChange(root_port, (long)messageArgument);
363 case kIOMessageSystemWillRestart:
364 /* The system WILL restart. Ack or suffer delay */
366 IOAllowPowerChange(root_port, (long)messageArgument);
369 case kIOMessageSystemWillPowerOn:
370 case kIOMessageSystemHasPoweredOn:
371 /* coming back from sleep */
373 IOAllowPowerChange(root_port, (long)messageArgument);
377 IOAllowPowerChange(root_port, (long)messageArgument);
383 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
385 /* parse multihomed address files */
386 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
392 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
393 AFSDIR_CLIENT_NETINFO_FILEPATH,
394 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
397 /* Note we're refreshing */
398 code = code | 0x40000000;
399 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
401 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
404 /* Since it's likely this means our DNS server changed, reinit now */
409 /* This function is called when the system's ip addresses may have changed. */
411 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
413 CFRunLoopTimerRef timer;
415 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
416 0.0, 0, 0, afsd_update_addresses, NULL);
417 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
418 kCFRunLoopDefaultMode);
423 afsd_event_cleanup(int signo) {
425 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
427 IODeregisterForSystemPower(&iterator);
428 IOServiceClose(root_port);
429 IONotificationPortDestroy(notify);
433 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
435 afsd_install_events(void)
437 SCDynamicStoreContext ctx = {0};
438 SCDynamicStoreRef store;
440 root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator);
443 CFRunLoopAddSource(CFRunLoopGetCurrent(),
444 IONotificationPortGetRunLoopSource(notify),
445 kCFRunLoopDefaultMode);
449 store = SCDynamicStoreCreate (NULL,
450 CFSTR ("AddIPAddressListChangeCallbackSCF"),
451 afsd_ipaddr_callback, &ctx);
456 /* Request IPV4 address change notification */
457 keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity
458 (NULL, kSCDynamicStoreDomainState,
459 kSCCompAnyRegex, kSCEntNetIPv4));
462 /* This should tell us when the hostname(s) change. do we care? */
463 keys[N] = SCDynamicStoreKeyCreateHostNames (NULL);
466 if (keys[0] != NULL) {
467 CFArrayRef pattern_array;
469 pattern_array = CFArrayCreate (NULL, keys, 1,
470 &kCFTypeArrayCallBacks);
472 if (pattern_array != NULL)
474 SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array);
475 source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0);
477 CFRelease (pattern_array);
487 if (source != NULL) {
488 CFRunLoopAddSource (CFRunLoopGetCurrent(),
489 source, kCFRunLoopDefaultMode);
492 signal(SIGTERM, afsd_event_cleanup);
498 /* ParseArgs is now obsolete, being handled by cmd */
500 /*------------------------------------------------------------------------------
504 * Open the file containing the description of the workstation's AFS cache
505 * and pull out its contents. The format of this file is as follows:
507 * cacheMountDir:cacheBaseDir:cacheBlocks
513 * 0 if everything went well,
517 * Nothing interesting.
521 *---------------------------------------------------------------------------*/
524 ParseCacheInfoFile(void)
526 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
527 FILE *cachefd; /*Descriptor for cache info file */
528 int parseResult; /*Result of our fscanf() */
529 afs_int32 tCacheBlocks;
530 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
533 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
535 cachefd = fopen(fullpn_CacheInfo, "r");
537 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
542 * Parse the contents of the cache info file. All chars up to the first
543 * colon are the AFS mount directory, all chars to the next colon are the
544 * full path name of the workstation cache directory and all remaining chars
545 * represent the number of blocks in the cache.
547 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
549 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
550 tCacheBaseDir, &tCacheBlocks);
553 * Regardless of how the parse went, we close the cache info file.
557 if (parseResult == EOF || parseResult < 3) {
558 printf("%s: Format error in cache info file!\n", rn);
559 if (parseResult == EOF)
560 printf("\tEOF encountered before any field parsed.\n");
562 printf("\t%d out of 3 fields successfully parsed.\n",
568 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
570 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
572 /* now copy in the fields not explicitly overridden by cmd args */
573 if (!sawCacheMountDir)
574 strcpy(afsd_cacheMountDir, tmd);
575 if (!sawCacheBaseDir)
576 strcpy(cacheBaseDir, tbd);
578 cacheBlocks = tCacheBlocks;
581 printf("%s: Cache info file successfully parsed:\n", rn);
583 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
584 tmd, tbd, tCacheBlocks);
586 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
587 return (PartSizeOverflow(tbd, cacheBlocks));
594 * All failures to open the partition are ignored. Also if the cache dir
595 * isn't a mounted partition it's also ignored since we can't guarantee
596 * what will be stored afterwards. Too many if's. This is now purely
597 * advisory. ODS with over 2G partition also gives warning message.
600 * 0 if everything went well,
604 PartSizeOverflow(char *path, int cs)
607 afs_int64 totalblks, mint;
608 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
609 struct statvfs statbuf;
611 if (statvfs(path, &statbuf) != 0) {
614 ("statvfs failed on %s; skip checking for adequate partition space\n",
618 totalblks = statbuf.f_blocks;
619 bsize = statbuf.f_frsize;
621 if (strcmp(statbuf.f_basetype, "jfs")) {
622 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
623 path, statbuf.f_basetype);
626 #endif /* AFS_AIX51_ENV */
628 #else /* AFS_HAVE_STATVFS */
629 struct statfs statbuf;
631 if (statfs(path, &statbuf) < 0) {
634 ("statfs failed on %s; skip checking for adequate partition space\n",
638 totalblks = statbuf.f_blocks;
639 bsize = statbuf.f_bsize;
642 return 0; /* success */
644 /* now free and totalblks are in fragment units, but we want them in 1K units */
646 totalblks *= (bsize / 1024);
648 totalblks /= (1024 / bsize);
651 mint = totalblks / 100 * 95;
654 ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n",
662 /*-----------------------------------------------------------------------------
666 * Given the final component of a filename expected to be a data cache file,
667 * return the integer corresponding to the file. Note: we reject names that
668 * are not a ``V'' followed by an integer. We also reject those names having
669 * the right format but lying outside the range [0..cacheFiles-1].
672 * fname : Char ptr to the filename to parse.
673 * max : integer for the highest number to accept
676 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
680 * Nothing interesting.
684 *---------------------------------------------------------------------------*/
687 doGetXFileNumber(char *fname, char filechar, int maxNum)
689 int computedVNumber; /*The computed file number we return */
690 int filenameLen; /*Number of chars in filename */
691 int currDigit; /*Current digit being processed */
694 * The filename must have at least two characters, the first of which must be a ``filechar''
695 * and the second of which cannot be a zero unless the file is exactly two chars long.
697 filenameLen = strlen(fname);
700 if (fname[0] != filechar)
702 if ((filenameLen > 2) && (fname[1] == '0'))
706 * Scan through the characters in the given filename, failing immediately if a non-digit
709 for (currDigit = 1; currDigit < filenameLen; currDigit++)
710 if (isdigit(fname[currDigit]) == 0)
714 * All relevant characters are digits. Pull out the decimal number they represent.
715 * Reject it if it's out of range, otherwise return it.
717 computedVNumber = atoi(++fname);
718 if (computedVNumber < cacheFiles)
719 return (computedVNumber);
725 GetVFileNumber(char *fname, int maxFile)
727 return doGetXFileNumber(fname, 'V', maxFile);
731 GetDDirNumber(char *fname, int maxDir)
733 return doGetXFileNumber(fname, 'D', maxDir);
737 /*-----------------------------------------------------------------------------
741 * Given a full pathname for a file we need to create for the workstation AFS
742 * cache, go ahead and create the file.
745 * fname : Full pathname of file to create.
746 * statp : A pointer to a stat buffer which, if NON-NULL, will be
750 * 0 iff the file was created,
754 * The given cache file has been found to be missing.
758 *---------------------------------------------------------------------------*/
761 CreateCacheSubDir(char *basename, int dirNum)
763 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
767 /* Build the new cache subdirectory */
768 sprintf(dir, "%s/D%d", basename, dirNum);
771 printf("%s: Creating cache subdir '%s'\n", rn, dir);
773 if ((ret = mkdir(dir, 0700)) != 0) {
774 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
780 /* Mark this directory as created */
781 cache_dir_list[dirNum] = 0;
783 /* And return success */
788 SetNoBackupAttr(char *fullpn)
790 #ifdef AFS_DARWIN80_ENV
793 ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem",
794 "com.apple.backupd", strlen("com.apple.backupd"), 0,
799 fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno));
806 MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile,
809 static char rn[] = "MoveCacheFile";
810 char from[1024], to[1024];
813 if (cache_dir_list[toDir] < 0
814 && (ret = CreateCacheSubDir(basename, toDir))) {
815 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
819 /* Build the from,to dir */
821 /* old-style location */
822 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
824 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
828 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
831 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
833 if ((ret = rename(from, to)) != 0) {
834 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
835 from, to, ret, errno);
840 /* Reset directory pointer; fix file counts */
841 dir_for_V[cacheFile] = toDir;
842 cache_dir_list[toDir]++;
843 if (fromDir < maxDir && fromDir >= 0)
844 cache_dir_list[fromDir]--;
850 CreateCacheFile(char *fname, struct stat *statp)
852 static char rn[] = "CreateCacheFile"; /*Routine name */
853 int cfd; /*File descriptor to AFS cache file */
854 int closeResult; /*Result of close() */
857 printf("%s: Creating cache file '%s'\n", rn, fname);
858 cfd = open(fname, createAndTrunc, ownerRWmode);
860 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
865 closeResult = fstat(cfd, statp);
868 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
873 closeResult = close(cfd);
876 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
885 CreateFileIfMissing(char *fullpn, int missing)
888 if (CreateCacheFile(fullpn, NULL))
889 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
894 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
896 if (unlink(fullpn_FileToDelete)) {
897 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
898 if (rmdir(fullpn_FileToDelete)) {
899 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
900 fullpn_FileToDelete, errno);
903 printf("%s: Can't unlink '%s', errno is %d\n", rn,
904 fullpn_FileToDelete, errno);
908 /*-----------------------------------------------------------------------------
912 * Sweep through the AFS cache directory, recording the inode number for
913 * each valid data cache file there. Also, delete any file that doesn't belong
914 * in the cache directory during this sweep, and remember which of the other
915 * residents of this directory were seen. After the sweep, we create any data
916 * cache files that were missing.
919 * vFilesFound : Set to the number of data cache files found.
922 * 0 if everything went well,
926 * This routine may be called several times. If the number of data cache files
927 * found is less than the global cacheFiles, then the caller will need to call it
928 * again to record the inodes of the missing zero-length data cache files created
929 * in the previous call.
932 * Fills up the global inode_for_V array, may create and/or delete files as
934 *---------------------------------------------------------------------------*/
938 doSweepAFSCache(int *vFilesFound,
939 char *directory, /* /path/to/cache/directory */
940 int dirNum, /* current directory number */
941 int maxDir) /* maximum directory number */
943 static char rn[] = "doSweepAFSCache"; /* Routine Name */
944 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
945 char *fileToDelete; /*Ptr to last component of above */
946 DIR *cdirp; /*Ptr to cache directory structure */
948 struct dirent64 *currp; /*Current directory entry */
950 struct dirent *currp; /*Current directory entry */
952 int vFileNum; /*Data cache file's associated number */
953 int thisDir; /* A directory number */
957 printf("%s: Opening cache directory '%s'\n", rn, directory);
959 if (chmod(directory, 0700)) { /* force it to be 700 */
960 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
964 cdirp = opendir(directory);
965 if (cdirp == (DIR *) 0) {
966 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
971 * Scan the directory entries, remembering data cache file inodes
972 * and the existance of other important residents. Recurse into
973 * the data subdirectories.
975 * Delete all files and directories that don't belong here.
977 sprintf(fullpn_FileToDelete, "%s/", directory);
978 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
981 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
983 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
987 printf("%s: Current directory entry:\n", rn);
988 #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV)
989 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino,
990 currp->d_reclen, currp->d_name);
991 #elif defined(AFS_DFBSD_ENV) || defined(AFS_USR_DFBSD_ENV)
992 printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name);
994 printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino,
995 currp->d_reclen, currp->d_name);
1000 * If dirNum < 0, we are a top-level cache directory and should
1001 * only contain sub-directories and other sundry files. Therefore,
1002 * V-files are valid only if dirNum >= 0, and Directories are only
1003 * valid if dirNum < 0.
1006 if (*(currp->d_name) == 'V'
1007 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1010 * Found a valid data cache filename. Remember this
1011 * file's inode, directory, and bump the number of files found
1012 * total and in this directory.
1014 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1015 inode_for_V[vFileNum] = currp->d_ino;
1017 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1020 /* If we're in a real subdir, mark this file to be moved
1021 * if we've already got too many files in this directory
1023 assert(dirNum >= 0);
1024 cache_dir_list[dirNum]++; /* keep directory's file count */
1025 if (cache_dir_list[dirNum] > nFilesPerDir) {
1026 /* Too many files -- add to filelist */
1027 struct afsd_file_list *tmp = (struct afsd_file_list *)
1028 malloc(sizeof(*tmp));
1031 ("%s: MALLOC FAILED allocating file_list entry\n",
1034 tmp->fileNum = vFileNum;
1035 tmp->next = cache_dir_filelist[dirNum];
1036 cache_dir_filelist[dirNum] = tmp;
1041 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1042 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1044 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1045 /* Found a valid cachefile sub-Directory. Remember this number
1046 * and recurse into it. Note that subdirs cannot have subdirs.
1049 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1051 /* This directory is going away, but figure out if there
1052 * are any cachefiles in here that should be saved by
1053 * moving them to other cache directories. This directory
1054 * will be removed later.
1059 /* Save the highest directory number we've seen */
1060 if (vFileNum > highDir)
1063 /* If this directory is staying, be sure to mark it as 'found' */
1065 cache_dir_list[vFileNum] = 0;
1067 /* Print the dirname for recursion */
1068 sprintf(fileToDelete, "%s", currp->d_name);
1070 /* Note: vFileNum is the directory number */
1072 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1073 (retval == 1 ? 0 : -1));
1075 printf("%s: Recursive sweep failed on directory %s\n", rn,
1079 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1081 * Found the file holding the dcache entries.
1083 missing_DCacheFile = 0;
1084 SetNoBackupAttr(fullpn_DCacheFile);
1085 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1087 * Found the file holding the volume info.
1089 missing_VolInfoFile = 0;
1090 SetNoBackupAttr(fullpn_VolInfoFile);
1091 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1093 * Found the file holding the cell info.
1095 missing_CellInfoFile = 0;
1096 SetNoBackupAttr(fullpn_CellInfoFile);
1097 } else if ((strcmp(currp->d_name, ".") == 0)
1098 || (strcmp(currp->d_name, "..") == 0) ||
1099 #ifdef AFS_DECOSF_ENV
1100 /* these are magic AdvFS files */
1101 (strcmp(currp->d_name, ".tags") == 0)
1102 || (strcmp(currp->d_name, "quota.user") == 0)
1103 || (strcmp(currp->d_name, "quota.group") == 0) ||
1105 #ifdef AFS_LINUX22_ENV
1106 /* this is the ext3 journal file */
1107 (strcmp(currp->d_name, ".journal") == 0) ||
1109 (strcmp(currp->d_name, "lost+found") == 0)) {
1111 * Don't do anything - this file is legit, and is to be left alone.
1115 * This file/directory doesn't belong in the cache. Nuke it.
1117 sprintf(fileToDelete, "%s", currp->d_name);
1119 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1120 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1127 * Create all the cache files that are missing.
1129 CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile);
1130 CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile);
1131 CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile);
1133 /* ADJUST CACHE FILES */
1135 /* First, let's walk through the list of files and figure out
1136 * if there are any leftover files in extra directories or
1137 * missing files. Move the former and create the latter in
1138 * subdirs with extra space.
1141 thisDir = 0; /* Keep track of which subdir has space */
1143 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
1144 if (dir_for_V[vFileNum] == -1) {
1145 /* This file does not exist. Create it in the first
1146 * subdir that still has extra space.
1148 while (thisDir < maxDir
1149 && cache_dir_list[thisDir] >= nFilesPerDir)
1151 if (thisDir >= maxDir)
1152 printf("%s: can't find directory to create V%d\n", rn,
1156 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1157 assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0);
1159 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
1161 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1162 if (cache_dir_list[thisDir] < 0
1163 && CreateCacheSubDir(directory, thisDir))
1164 printf("%s: Can't create directory for '%s'\n", rn,
1166 if (CreateCacheFile(fullpn_VFile, &statb))
1167 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1169 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1170 inode_for_V[vFileNum] = statb.st_ino;
1172 dir_for_V[vFileNum] = thisDir;
1173 cache_dir_list[thisDir]++;
1176 SetNoBackupAttr(fullpn_VFile);
1179 } else if (dir_for_V[vFileNum] >= maxDir
1180 || dir_for_V[vFileNum] == -2) {
1181 /* This file needs to move; move it to the first subdir
1182 * that has extra space. (-2 means it's in the toplevel)
1184 while (thisDir < maxDir
1185 && cache_dir_list[thisDir] >= nFilesPerDir)
1187 if (thisDir >= maxDir)
1188 printf("%s: can't find directory to move V%d\n", rn,
1192 (directory, dir_for_V[vFileNum], thisDir, vFileNum,
1194 /* Cannot move. Ignore this file??? */
1201 /* At this point, we've moved all of the valid cache files
1202 * into the valid subdirs, and created all the extra
1203 * cachefiles we need to create. Next, rebalance any subdirs
1204 * with too many cache files into the directories with not
1205 * enough cache files. Note that thisDir currently sits at
1206 * the lowest subdir that _may_ have room.
1209 for (dirNum = 0; dirNum < maxDir; dirNum++) {
1210 struct afsd_file_list *thisFile;
1212 for (thisFile = cache_dir_filelist[dirNum];
1213 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
1214 thisFile = thisFile->next) {
1215 while (thisDir < maxDir
1216 && cache_dir_list[thisDir] >= nFilesPerDir)
1218 if (thisDir >= maxDir)
1219 printf("%s: can't find directory to move V%d\n", rn,
1223 (directory, dirNum, thisDir, thisFile->fileNum,
1225 /* Cannot move. Ignore this file??? */
1229 } /* for each file to move */
1230 } /* for each directory */
1232 /* Remove any directories >= maxDir -- they should be empty */
1233 for (; highDir >= maxDir; highDir--) {
1234 sprintf(fileToDelete, "D%d", highDir);
1235 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1241 * Close the directory, return success.
1244 printf("%s: Closing cache directory.\n", rn);
1250 CheckCacheBaseDir(char *dir)
1252 struct stat statbuf;
1255 return "cache base dir not specified";
1257 if (stat(dir, &statbuf) != 0) {
1258 return "unable to stat cache base directory";
1261 /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */
1263 #ifdef AFS_LINUX24_ENV
1266 struct statfs statfsbuf;
1268 res = statfs(dir, &statfsbuf);
1270 return "unable to statfs cache base directory";
1272 #if !defined(AFS_LINUX26_ENV)
1273 if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */
1274 return "cannot use reiserfs as cache partition";
1275 } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */
1276 return "cannot use xfs as cache partition";
1277 } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */
1278 return "cannot use tmpfs as cache partition";
1279 } else if (statfsbuf.f_type != 0xEF53) {
1280 return "must use ext2 or ext3 for cache partition";
1289 struct statfs statfsbuf;
1292 res = statfs(dir, &statfsbuf);
1294 return "unable to statfs cache base directory";
1297 if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) {
1298 return "unable to determine filesystem type for cache base dir";
1301 if (strcmp(name, "hfs")) {
1302 return "can only use hfs filesystem for cache partition on hpux";
1311 struct stat statmnt, statci;
1313 if ((stat(dir, &statci) == 0)
1314 && ((vfstab = fopen(MNTTAB, "r")) != NULL)) {
1315 while (getmntent(vfstab, &mnt) == 0) {
1316 if (strcmp(dir, mnt.mnt_mountp) != 0) {
1320 if (cp = hasmntopt(&mnt, "dev="))
1322 (int)strtol(cp + strlen("dev="), (char **)NULL,
1325 if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0))
1326 rdev = statmnt.st_dev;
1328 if ((rdev == statci.st_dev)
1329 && (hasmntopt(&mnt, "logging") != NULL)) {
1333 "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n";
1347 SweepAFSCache(int *vFilesFound)
1349 static char rn[] = "SweepAFSCache"; /*Routine name */
1350 int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir;
1355 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1357 printf("%s: Memory Cache, no cache sweep done\n", rn);
1361 if (cache_dir_list == NULL) {
1362 cache_dir_list = (int *)malloc(maxDir * sizeof(*cache_dir_list));
1363 if (cache_dir_list == NULL) {
1364 printf("%s: Malloc Failed!\n", rn);
1367 for (i = 0; i < maxDir; i++)
1368 cache_dir_list[i] = -1; /* Does not exist */
1371 if (cache_dir_filelist == NULL) {
1372 cache_dir_filelist = (struct afsd_file_list **)
1373 malloc(maxDir * sizeof(*cache_dir_filelist));
1374 if (cache_dir_filelist == NULL) {
1375 printf("%s: Malloc Failed!\n", rn);
1378 memset(cache_dir_filelist, 0, maxDir * sizeof(*cache_dir_filelist));
1381 if (dir_for_V == NULL) {
1382 dir_for_V = (int *)malloc(cacheFiles * sizeof(*dir_for_V));
1383 if (dir_for_V == NULL) {
1384 printf("%s: Malloc Failed!\n", rn);
1387 for (i = 0; i < cacheFiles; i++)
1388 dir_for_V[i] = -1; /* Does not exist */
1391 /* Note, setting dirNum to -2 here will cause cachefiles found in
1392 * the toplevel directory to be marked in directory "-2". This
1393 * allows us to differentiate between 'file not seen' (-1) and
1394 * 'file seen in top-level' (-2). Then when we try to move the
1395 * file into a subdirectory, we know it's in the top-level instead
1396 * of some other cache subdir.
1398 return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir);
1402 ConfigCell(struct afsconf_cell *aci, void *arock, struct afsconf_dir *adir)
1406 afs_int32 cellFlags = 0;
1407 afs_int32 hosts[MAXHOSTSPERCELL];
1409 /* figure out if this is the home cell */
1410 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1412 cellFlags = 2; /* not home, suid is forbidden */
1413 if (enable_dynroot == 2)
1414 cellFlags |= 8; /* don't display foreign cells until looked up */
1416 /* build address list */
1417 for (i = 0; i < MAXHOSTSPERCELL; i++)
1418 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1420 if (aci->linkedCell)
1421 cellFlags |= 4; /* Flag that linkedCell arg exists,
1422 * for upwards compatibility */
1424 /* configure one cell */
1425 code = afsd_call_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */
1426 aci->name, /* cell name */
1427 cellFlags, /* is this the home cell? */
1428 aci->linkedCell); /* Linked cell, if any */
1430 printf("Adding cell '%s': error %d\n", aci->name, code);
1435 ConfigCellAlias(struct afsconf_cellalias *aca,
1436 void *arock, struct afsconf_dir *adir)
1438 /* push the alias into the kernel */
1439 afsd_call_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1444 AfsdbLookupHandler(void)
1446 afs_int32 kernelMsg[64];
1447 char acellName[128];
1449 struct afsconf_cell acellInfo;
1454 acellName[0] = '\0';
1456 #if defined(AFS_DARWIN_ENV) && !defined(AFS_ARM_DARWIN_ENV)
1457 /* Fork the event handler also. */
1460 afsd_install_events();
1462 } else if (code != -1) {
1467 /* On some platforms you only get 4 args to an AFS call */
1468 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1470 afsd_call_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1471 if (code) { /* Something is wrong? */
1476 if (*acellName == 1) /* Shutting down */
1479 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1484 kernelMsg[0] = acellInfo.numServers;
1485 if (acellInfo.timeout)
1486 kernelMsg[1] = acellInfo.timeout - time(0);
1489 for (i = 0; i < acellInfo.numServers; i++)
1490 kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1491 strncpy(acellName, acellInfo.name, sizeof(acellName));
1492 acellName[sizeof(acellName) - 1] = '\0';
1495 #ifdef AFS_DARWIN_ENV
1496 kill(event_pid, SIGTERM);
1500 #ifdef AFS_DARWIN_ENV
1505 struct afs_uspc_param *uspc;
1509 uspc = (struct afs_uspc_param *)malloc(sizeof(struct afs_uspc_param));
1510 memset(uspc, 0, sizeof(struct afs_uspc_param));
1511 memset(srcName, 0, sizeof(srcName));
1512 memset(dstName, 0, sizeof(dstName));
1514 /* brscount starts at 0 */
1520 char srcpath[BUFSIZ];
1521 char dstpath[BUFSIZ];
1523 /* pushing in a buffer this large */
1526 code = afsd_call_syscall(AFSOP_BKG_HANDLER, uspc, srcName, dstName);
1527 if (code) { /* Something is wrong? */
1528 if (code == -2) /* shutting down */
1536 switch (uspc->reqtype) {
1538 snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1539 uspc->req.umv.sCell, uspc->req.umv.sVolume,
1540 uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName);
1541 snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1542 uspc->req.umv.dCell, uspc->req.umv.dVolume,
1543 uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName);
1544 if ((child = fork()) == 0) {
1545 /* first child does cp; second, rm. mv would re-enter. */
1547 switch (uspc->req.umv.idtype) {
1549 if (setuid(uspc->req.umv.id) != 0) {
1555 break; /* notreached */
1557 execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath,
1558 dstpath, (char *) NULL);
1560 if (child == (pid_t) -1) {
1565 if (waitpid(child, &status, 0) == -1)
1567 else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) {
1568 if ((child = fork()) == 0) {
1569 switch (uspc->req.umv.idtype) {
1571 if (setuid(uspc->req.umv.id) != 0) {
1577 break; /* notreached */
1579 execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--",
1580 srcpath, (char *) NULL);
1582 if (child == (pid_t) -1) {
1586 if (waitpid(child, &status, 0) == -1)
1588 else if (WIFEXITED(status) != 0) {
1589 /* rm exit status */
1590 uspc->retval = WEXITSTATUS(status);
1592 /* rm signal status */
1593 uspc->retval = -(WTERMSIG(status));
1596 /* error from cp: exit or signal status */
1597 uspc->retval = (WIFEXITED(status) != 0) ?
1598 WEXITSTATUS(status) : -(WTERMSIG(status));
1600 memset(srcName, 0, sizeof(srcName));
1601 memset(dstName, 0, sizeof(dstName));
1605 /* unknown req type */
1614 afsdb_thread(void *rock)
1616 /* Since the AFSDB lookup handler runs as a user process,
1617 * need to drop the controlling TTY, etc.
1619 if (afsd_daemon(0, 0) == -1) {
1620 printf("Error starting AFSDB lookup handler: %s\n",
1624 AfsdbLookupHandler();
1629 daemon_thread(void *rock)
1631 #ifdef AFS_DARWIN80_ENV
1632 /* Since the background daemon runs as a user process,
1633 * need to drop the controlling TTY, etc.
1635 if (afsd_daemon(0, 0) == -1) {
1636 printf("Error starting background daemon: %s\n",
1641 #elif defined(AFS_AIX32_ENV)
1642 afsd_call_syscall(AFSOP_START_BKG, 0);
1644 afsd_call_syscall(AFSOP_START_BKG);
1651 rmtsysd_thread(void *rock)
1656 #endif /* !UKERNEL */
1659 mainproc(struct cmd_syndesc *as, void *arock)
1661 afs_int32 code; /*Result of fork() */
1665 #ifdef AFS_SGI65_ENV
1666 struct sched_param sp;
1669 #ifdef AFS_SGI_VNODE_GLUE
1670 if (afs_init_kernel_config(-1) < 0) {
1671 printf("Can't determine NUMA configuration, not starting AFS.\n");
1676 /* call atoi on the appropriate parsed results */
1677 if (as->parms[0].items) {
1679 cacheBlocks = atoi(as->parms[0].items->data);
1682 if (as->parms[1].items) {
1684 cacheFiles = atoi(as->parms[1].items->data);
1685 filesSet = 1; /* set when spec'd on cmd line */
1687 if (as->parms[2].items) {
1689 strcpy(rootVolume, as->parms[2].items->data);
1692 if (as->parms[3].items) {
1694 cacheStatEntries = atoi(as->parms[3].items->data);
1695 sawCacheStatEntries = 1;
1697 if (as->parms[4].items) {
1699 cacheBaseDir[0] = '\0';
1700 sawCacheBaseDir = 1;
1701 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1703 if (as->parms[5].items) {
1705 strcpy(cacheBaseDir, as->parms[5].items->data);
1706 sawCacheBaseDir = 1;
1708 if (as->parms[6].items) {
1710 strcpy(afsd_cacheMountDir, as->parms[6].items->data);
1711 sawCacheMountDir = 1;
1713 if (as->parms[7].items) {
1715 nDaemons = atoi(as->parms[7].items->data);
1717 if (as->parms[8].items) {
1721 if (as->parms[9].items) {
1725 if (as->parms[10].items) {
1729 printf("-rmtsys not supported for UKERNEL\n");
1733 if (as->parms[11].items) {
1738 if (as->parms[12].items) {
1740 chunkSize = atoi(as->parms[12].items->data);
1741 if (chunkSize < 0 || chunkSize > 30) {
1743 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1747 if (as->parms[13].items) {
1749 dCacheSize = atoi(as->parms[13].items->data);
1752 if (as->parms[14].items) {
1754 vCacheSize = atoi(as->parms[14].items->data);
1756 if (as->parms[15].items) {
1758 #ifndef AFS_AIX32_ENV
1760 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1762 nBiods = atoi(as->parms[15].items->data);
1766 if (as->parms[16].items) {
1768 preallocs = atoi(as->parms[16].items->data);
1770 strcpy(confDir, AFSDIR_CLIENT_ETC_DIRPATH);
1771 if (as->parms[17].items) {
1773 strcpy(confDir, as->parms[17].items->data);
1775 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1776 if (as->parms[18].items) {
1778 printf("afsd: Ignoring obsolete -logfile flag\n");
1780 if (as->parms[19].items) {
1782 afsd_CloseSynch = 1;
1784 if (as->parms[20].items) {
1788 * Cold shutdown is the default
1790 printf("afsd: Shutting down all afs processes and afs state\n");
1791 code = afsd_call_syscall(AFSOP_SHUTDOWN, 1);
1793 printf("afsd: AFS still mounted; Not shutting down\n");
1798 if (as->parms[21].items) {
1799 /* -enable_peer_stats */
1800 enable_peer_stats = 1;
1802 if (as->parms[22].items) {
1803 /* -enable_process_stats */
1804 enable_process_stats = 1;
1806 if (as->parms[23].items) {
1807 /* -mem_alloc_sleep */
1808 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1810 if (as->parms[24].items) {
1814 if (as->parms[25].items) {
1815 /* -files_per_subdir */
1816 int res = atoi(as->parms[25].items->data);
1817 if (res < 10 || res > (1 << 30)) {
1819 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1820 as->parms[25].items->data);
1825 if (as->parms[26].items) {
1829 if (as->parms[27].items) {
1831 enable_fakestat = 2;
1833 if (as->parms[28].items) {
1835 enable_fakestat = 1;
1837 if (as->parms[29].items) {
1841 if (as->parms[30].items) {
1843 enable_backuptree = 1;
1845 if (as->parms[31].items) {
1849 if (as->parms[32].items) {
1854 /* set rx_extraPackets */
1855 if (as->parms[33].items) {
1857 int rxpck = atoi(as->parms[33].items->data);
1858 printf("afsd: set rxpck = %d\n", rxpck);
1859 code = afsd_call_syscall(AFSOP_SET_RXPCK, rxpck);
1861 printf("afsd: failed to set rxpck\n");
1865 if (as->parms[34].items) {
1867 if (!as->parms[34].items->data ||
1868 ((c = strchr(as->parms[34].items->data, '/')) == NULL))
1870 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1872 ropct = atoi((char *)c + 1);
1874 rwpct = atoi((char *)as->parms[30].items->data);
1875 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1877 enable_splitcache = 1;
1881 if (as->parms[35].items) {
1882 #ifdef AFS_MAXVCOUNT_ENV
1883 /* -disable-dynamic-vcaches */
1884 afsd_dynamic_vcaches = 0;
1886 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1890 #ifdef AFS_MAXVCOUNT_ENV
1892 /* -dynamic-vcaches */
1893 afsd_dynamic_vcaches = 1;
1897 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1901 if (as->parms[36].items) {
1903 rxmaxmtu = atoi(as->parms[36].items->data);
1905 if (as->parms[37].items) {
1906 /* -dynroot-sparse */
1915 static char rn[] = "afsd"; /*Name of this routine */
1916 struct afsconf_dir *cdir; /* config dir */
1917 int lookupResult; /*Result of GetLocalCellName() */
1919 afs_int32 code; /*Result of fork() */
1920 char *fsTypeMsg = NULL;
1921 int cacheIteration; /*How many times through cache verification */
1922 int vFilesFound; /*How many data cache files were found in sweep */
1923 int currVFile; /*Current AFS cache file number passed in */
1926 * Pull out all the configuration info for the workstation's AFS cache and
1927 * the cellular community we're willing to let our users see.
1929 cdir = afsconf_Open(confDir);
1931 printf("afsd: some file missing or bad in %s\n", confDir);
1936 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1938 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1942 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1945 /* parse cacheinfo file if this is a diskcache */
1946 if (ParseCacheInfoFile()) {
1950 if (!enable_nomount) {
1951 if (afsd_check_mount(rn, afsd_cacheMountDir)) {
1956 /* do some random computations in memcache case to get things to work
1957 * reasonably no matter which parameters you set.
1959 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1960 /* memory cache: size described either as blocks or dcache entries, but
1964 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1966 if (sawDCacheSize) {
1967 if (chunkSize == 0) {
1968 chunkSize = 13; /* 8k default chunksize for memcache */
1970 if (sawCacheBlocks) {
1972 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1976 /* compute the cache size based on # of chunks times the chunk size */
1977 i = (1 << chunkSize); /* bytes per chunk */
1978 cacheBlocks = i * dCacheSize;
1979 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1981 if (chunkSize == 0) {
1982 /* Try to autotune the memcache chunksize based on size
1983 * of memcache. This is done on the assumption that approx
1984 * 1024 chunks is suitable, it's a balance between enough
1985 * chunks to be useful and ramping up nicely when using larger
1986 * memcache to improve bulk read/write performance
1989 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1992 /* compute the dcache size from overall cache size and chunk size */
1993 if (chunkSize > 10) {
1994 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1995 } else if (chunkSize < 10) {
1996 dCacheSize = (cacheBlocks << (10 - chunkSize));
1998 dCacheSize = cacheBlocks;
2000 /* don't have to set sawDCacheSize here since it isn't overwritten
2001 * by ParseCacheInfoFile.
2005 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2007 /* kernel computes # of dcache entries as min of cacheFiles and
2008 * dCacheSize, so we now make them equal.
2010 cacheFiles = dCacheSize;
2013 * Compute the number of cache files based on cache size,
2014 * but only if -files isn't given on the command line.
2015 * Don't let # files be so small as to prevent full utilization
2016 * of the cache unless user has explicitly asked for it.
2018 if (chunkSize == 0) {
2019 /* Set chunksize to 256kB - 1MB depending on cache size */
2020 if (cacheBlocks < 500000) {
2022 } else if (cacheBlocks < 1000000) {
2029 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2031 cacheFiles = max(cacheFiles, 1000);
2033 /* Always allow more files than chunks. Presume average V-file
2034 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2035 * have a grad student write a paper). i is KILOBYTES.
2037 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2038 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2040 /* never permit more files than blocks, while leaving space for
2041 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2042 * CacheItems is 50 Bytes / file (== 1K/20)
2044 #define CACHEITMSZ (cacheFiles / 20)
2045 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2046 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2047 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2049 /* Sanity check: If the obtained number of disk cache files
2050 * is larger than the number of available (4k) disk blocks, we're
2051 * doing something wrong. Fail hard so we can fix the bug instead
2052 * of silently hiding it like before */
2054 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2056 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2057 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2060 if (cacheFiles < 100)
2061 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2065 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2068 /* This actually needs to
2070 2) not second-guess when a chunksize comes from the command line
2071 3) be less, um, small. 2^2??
2073 /* Sanity check chunkSize */
2074 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2075 chunkSize = min(chunkSize, i);
2076 chunkSize = max(chunkSize, 2);
2078 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2081 if (!sawDCacheSize) {
2082 dCacheSize = cacheFiles / 2;
2083 if (dCacheSize > 10000) {
2086 if (dCacheSize < 2000) {
2090 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2093 if (!sawCacheStatEntries) {
2094 if (chunkSize <= 13) {
2095 cacheStatEntries = dCacheSize / 4;
2096 } else if (chunkSize >= 16) {
2097 cacheStatEntries = dCacheSize * 1.5;
2099 cacheStatEntries = dCacheSize;
2102 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2106 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
2108 * Create and zero the inode table for the desired cache files.
2110 inode_for_V = (AFSD_INO_T *) malloc(cacheFiles * sizeof(AFSD_INO_T));
2111 if (inode_for_V == (AFSD_INO_T *) 0) {
2113 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2117 memset(inode_for_V, '\0', (cacheFiles * sizeof(AFSD_INO_T)));
2119 printf("%s: %d inode_for_V entries at 0x%x, %lu bytes\n", rn,
2120 cacheFiles, inode_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
2124 * Set up all the pathnames we'll need for later.
2126 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2127 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2128 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2129 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2130 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2132 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)
2133 && (fsTypeMsg = CheckCacheBaseDir(cacheBaseDir))) {
2135 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2137 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2143 * Set up all the kernel processes needed for AFS.
2146 setpgrp(getpid(), 0);
2150 * Set the primary cell name.
2152 afsd_call_syscall(AFSOP_SET_THISCELL, LclCellName);
2154 /* Initialize RX daemons and services */
2156 /* initialize the rx random number generator from user space */
2158 /* parse multihomed address files */
2159 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2163 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2164 AFSDIR_CLIENT_NETINFO_FILEPATH,
2165 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2168 code = code | 0x80000000;
2169 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2171 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2175 /* Set realtime priority for most threads to same as for biod's. */
2176 afsd_set_afsd_rtpri();
2178 #ifdef AFS_SGI53_ENV
2179 #ifdef AFS_SGI61_ENV
2181 #else /* AFS_SGI61_ENV */
2182 code = get_nfsstaticaddr();
2184 afsd_call_syscall(AFSOP_NFSSTATICADDR, code);
2185 #endif /* AFS_SGI61_ENV */
2186 #endif /* AFS_SGI_53_ENV */
2188 /* Start listener, then callback listener. Lastly, start rx event daemon.
2189 * Change in ordering is so that Linux port has socket fd in listener
2191 * preallocs are passed for both listener and callback server. Only
2192 * the one which actually does the initialization uses them though.
2194 if (preallocs < cacheStatEntries + 50)
2195 preallocs = cacheStatEntries + 50;
2196 #ifdef RXK_LISTENER_ENV
2198 printf("%s: Forking rx listener daemon.\n", rn);
2199 # ifdef AFS_SUN510_ENV
2200 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2201 enable_peer_stats, enable_process_stats);
2202 # else /* !AFS_SUN510_ENV */
2203 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2204 enable_process_stats);
2205 # endif /* !AFS_SUN510_ENV */
2208 printf("%s: Forking rx callback listener.\n", rn);
2209 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs);
2210 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
2212 printf("%s: Forking rxevent daemon.\n", rn);
2213 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2218 printf("%s: Forking AFSDB lookup handler.\n", rn);
2219 afsd_fork(0, afsdb_thread, NULL);
2221 code = afsd_call_syscall(AFSOP_BASIC_INIT, 1);
2223 printf("%s: Error %d in basic initialization.\n", rn, code);
2228 * Tell the kernel some basic information about the workstation's cache.
2232 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2233 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2235 memset(&cparams, '\0', sizeof(cparams));
2236 cparams.cacheScaches = cacheStatEntries;
2237 cparams.cacheFiles = cacheFiles;
2238 cparams.cacheBlocks = cacheBlocks;
2239 cparams.cacheDcaches = dCacheSize;
2240 cparams.cacheVolumes = vCacheSize;
2241 cparams.chunkSize = chunkSize;
2242 cparams.setTimeFlag = cacheSetTime;
2243 cparams.memCacheFlag = cacheFlags;
2244 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2245 afsd_call_syscall(AFSOP_CACHEINIT, &cparams);
2247 /* do it before we init the cache inodes */
2248 if (enable_splitcache) {
2249 afsd_call_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2250 afsd_call_syscall(AFSOP_BUCKETPCT, 2, ropct);
2253 if (afsd_CloseSynch)
2254 afsd_call_syscall(AFSOP_CLOSEWAIT);
2257 * Sweep the workstation AFS cache directory, remembering the inodes of
2258 * valid files and deleting extraneous files. Keep sweeping until we
2259 * have the right number of data cache files or we've swept too many
2262 * This also creates files in the cache directory like VolumeItems and
2263 * CellItems, and thus must be ran before those are sent to the kernel.
2266 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2268 /* Memory-cache based system doesn't need any of this */
2269 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2272 if (SweepAFSCache(&vFilesFound)) {
2273 printf("%s: Error on sweep %d of workstation AFS cache \
2274 directory.\n", rn, cacheIteration);
2279 ("%s: %d out of %d data cache files found in sweep %d.\n",
2280 rn, vFilesFound, cacheFiles, cacheIteration);
2281 } while ((vFilesFound < cacheFiles)
2282 && (cacheIteration < MAX_CACHE_LOOPS));
2283 } else if (afsd_verbose)
2284 printf("%s: Using memory cache, not swept\n", rn);
2287 * Pass the kernel the name of the workstation cache file holding the
2291 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2293 /* once again, meaningless for a memory-based cache. */
2294 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2295 afsd_call_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2298 * Pass the kernel the name of the workstation cache file holding the
2301 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2303 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2304 fullpn_CellInfoFile);
2305 afsd_call_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2310 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2311 code = afsd_call_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2313 printf("%s: Error seting rxmaxmtu\n", rn);
2316 if (enable_dynroot) {
2318 printf("%s: Enabling dynroot support in kernel%s.\n", rn,
2319 (enable_dynroot==2)?", not showing cells.":"");
2320 code = afsd_call_syscall(AFSOP_SET_DYNROOT, 1);
2322 printf("%s: Error enabling dynroot support.\n", rn);
2325 if (enable_fakestat) {
2327 printf("%s: Enabling fakestat support in kernel%s.\n", rn,
2328 (enable_fakestat==2)?" for all mountpoints."
2329 :" for crosscell mountpoints");
2330 code = afsd_call_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2332 printf("%s: Error enabling fakestat support.\n", rn);
2335 if (enable_backuptree) {
2337 printf("%s: Enabling backup tree support in kernel.\n", rn);
2338 code = afsd_call_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2340 printf("%s: Error enabling backup tree support.\n", rn);
2344 * Tell the kernel about each cell in the configuration.
2346 afsconf_CellApply(cdir, ConfigCell, NULL);
2347 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2349 /* Initialize AFS daemon threads. */
2351 printf("%s: Forking AFS daemon.\n", rn);
2352 fork_syscall(rn, AFSOP_START_AFS);
2355 printf("%s: Forking Check Server Daemon.\n", rn);
2356 fork_syscall(rn, AFSOP_START_CS);
2359 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2360 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2361 /* Add one because for sgi we always "steal" the first daemon for a
2362 * different task if we only have a 4K stack.
2366 for (i = 0; i < nDaemons; i++) {
2367 afsd_fork(0, daemon_thread, NULL);
2369 #ifdef AFS_AIX32_ENV
2371 nBiods = nDaemons * 2;
2374 for (i = 0; i < nBiods; i++) {
2375 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2380 * If the root volume has been explicitly set, tell the kernel.
2384 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2386 afsd_call_syscall(AFSOP_ROOTVOLUME, rootVolume);
2390 * Pass the kernel the name of the workstation cache file holding the
2391 * volume information.
2394 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2395 fullpn_VolInfoFile);
2396 /* once again, meaningless for a memory-based cache. */
2397 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2398 afsd_call_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2401 * Give the kernel the names of the AFS files cached on the workstation's
2406 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2407 rn, cacheFiles, cacheBaseDir);
2408 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2409 /* ... and again ... */
2410 int nocachefile = 0;
2411 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2413 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2414 code = afsd_call_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2416 if (currVFile == 0) {
2419 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2420 rn, cacheFiles, cacheBaseDir);
2424 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2431 /* fall through to setup-by-inode */
2433 #ifdef AFS_SGI62_ENV
2434 afsd_call_syscall(AFSOP_CACHEINODE,
2435 (afs_uint32) (inode_for_V[currVFile] >> 32),
2436 (afs_uint32) (inode_for_V[currVFile] & 0xffffffff));
2437 #elif !(defined(AFS_LINUX26_ENV) || defined(AFS_CACHE_VNODE_PATH))
2438 afsd_call_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2441 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2449 * All the necessary info has been passed into the kernel to run an AFS
2450 * system. Give the kernel our go-ahead.
2453 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2455 afsd_call_syscall(AFSOP_GO, cacheSetTime);
2458 * At this point, we have finished passing the kernel all the info
2459 * it needs to set up the AFS. Mount the AFS root.
2461 printf("%s: All AFS daemons started.\n", rn);
2464 printf("%s: Forking trunc-cache daemon.\n", rn);
2465 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2467 if (!enable_nomount) {
2468 afsd_mount_afs(rn, afsd_cacheMountDir);
2474 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2475 afsd_fork(0, rmtsysd_thread, NULL);
2477 #endif /* !UKERNEL */
2479 * Exit successfully.
2484 #include "AFS_component_version_number.c"
2489 struct cmd_syndesc *ts;
2491 ts = cmd_CreateSyntax(NULL, mainproc, NULL, "start AFS");
2494 cmd_AddParm(ts, "-blocks", CMD_SINGLE, CMD_OPTIONAL,
2495 "1024 byte blocks in cache");
2496 cmd_AddParm(ts, "-files", CMD_SINGLE, CMD_OPTIONAL, "files in cache");
2497 cmd_AddParm(ts, "-rootvol", CMD_SINGLE, CMD_OPTIONAL,
2498 "name of AFS root volume");
2499 cmd_AddParm(ts, "-stat", CMD_SINGLE, CMD_OPTIONAL,
2500 "number of stat entries");
2501 cmd_AddParm(ts, "-memcache", CMD_FLAG, CMD_OPTIONAL, "run diskless");
2502 cmd_AddParm(ts, "-cachedir", CMD_SINGLE, CMD_OPTIONAL, "cache directory");
2503 cmd_AddParm(ts, "-mountdir", CMD_SINGLE, CMD_OPTIONAL, "mount location");
2504 cmd_AddParm(ts, "-daemons", CMD_SINGLE, CMD_OPTIONAL,
2505 "number of daemons to use");
2506 cmd_AddParm(ts, "-nosettime", CMD_FLAG, CMD_OPTIONAL,
2507 "don't set the time");
2508 cmd_AddParm(ts, "-verbose", CMD_FLAG, CMD_OPTIONAL,
2509 "display lots of information");
2510 cmd_AddParm(ts, "-rmtsys", CMD_FLAG, CMD_OPTIONAL,
2511 "start NFS rmtsysd program");
2514 cmd_AddParm(ts, "-debug", CMD_FLAG, CMD_OPTIONAL, "display debug info");
2515 cmd_AddParm(ts, "-chunksize", CMD_SINGLE, CMD_OPTIONAL,
2516 "log(2) of chunk size");
2517 cmd_AddParm(ts, "-dcache", CMD_SINGLE, CMD_OPTIONAL,
2518 "number of dcache entries");
2519 cmd_AddParm(ts, "-volumes", CMD_SINGLE, CMD_OPTIONAL,
2520 "number of volume entries");
2521 cmd_AddParm(ts, "-biods", CMD_SINGLE, CMD_OPTIONAL,
2522 "number of bkg I/O daemons (aix vm)");
2523 cmd_AddParm(ts, "-prealloc", CMD_SINGLE, CMD_OPTIONAL,
2524 "number of 'small' preallocated blocks");
2525 cmd_AddParm(ts, "-confdir", CMD_SINGLE, CMD_OPTIONAL,
2526 "configuration directory");
2527 cmd_AddParm(ts, "-logfile", CMD_SINGLE, CMD_OPTIONAL,
2528 "Place to keep the CM log");
2529 cmd_AddParm(ts, "-waitclose", CMD_FLAG, CMD_OPTIONAL,
2530 "make close calls synchronous");
2531 cmd_AddParm(ts, "-shutdown", CMD_FLAG, CMD_OPTIONAL,
2532 "Shutdown all afs state");
2534 cmd_AddParm(ts, "-enable_peer_stats", CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2535 "Collect rpc statistics by peer");
2536 cmd_AddParm(ts, "-enable_process_stats", CMD_FLAG,
2537 CMD_OPTIONAL | CMD_HIDE,
2538 "Collect rpc statistics for this process");
2539 cmd_AddParm(ts, "-mem_alloc_sleep", CMD_FLAG, (CMD_OPTIONAL | CMD_HIDE),
2540 "Allow sleeps when allocating memory cache");
2541 cmd_AddParm(ts, "-afsdb", CMD_FLAG, (CMD_OPTIONAL),
2542 "Enable AFSDB support");
2543 cmd_AddParm(ts, "-files_per_subdir", CMD_SINGLE, CMD_OPTIONAL,
2544 "log(2) of the number of cache files per cache subdirectory");
2545 cmd_AddParm(ts, "-dynroot", CMD_FLAG, CMD_OPTIONAL,
2546 "Enable dynroot support");
2547 cmd_AddParm(ts, "-fakestat", CMD_FLAG, CMD_OPTIONAL,
2548 "Enable fakestat support for cross-cell mounts");
2549 cmd_AddParm(ts, "-fakestat-all", CMD_FLAG, CMD_OPTIONAL,
2550 "Enable fakestat support for all mounts");
2551 cmd_AddParm(ts, "-nomount", CMD_FLAG, CMD_OPTIONAL, "Do not mount AFS");
2552 cmd_AddParm(ts, "-backuptree", CMD_FLAG, CMD_OPTIONAL,
2553 "Prefer backup volumes for mointpoints in backup volumes");
2555 cmd_AddParm(ts, "-rxbind", CMD_FLAG, CMD_OPTIONAL,
2556 "Bind the Rx socket (one interface only)");
2557 cmd_AddParm(ts, "-settime", CMD_FLAG, CMD_OPTIONAL, "set the time");
2558 cmd_AddParm(ts, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2559 "set rx_extraPackets to this value");
2560 cmd_AddParm(ts, "-splitcache", CMD_SINGLE, CMD_OPTIONAL,
2561 "Percentage RW versus RO in cache (specify as 60/40)");
2562 cmd_AddParm(ts, "-disable-dynamic-vcaches", CMD_FLAG, CMD_OPTIONAL,
2563 "disable stat/vcache cache growing as needed");
2564 cmd_AddParm(ts, "-rxmaxmtu", CMD_SINGLE, CMD_OPTIONAL, "set rx max MTU to use");
2565 cmd_AddParm(ts, "-dynroot-sparse", CMD_FLAG, CMD_OPTIONAL,
2566 "Enable dynroot support with minimal cell list");
2570 afsd_parse(int argc, char **argv)
2572 return cmd_Dispatch(argc, argv);
2575 #ifdef AFS_SGI53_ENV
2576 #ifdef AFS_SGI61_ENV
2577 /* The dwarf structures are searched to find entry points of static functions
2578 * and the addresses of static variables. The file name as well as the
2579 * sybmol name is reaquired.
2582 /* Contains list of names to find in given file. */
2584 char *name; /* Name of variable or function. */
2585 afs_hyper_t addr; /* Address of function, undefined if not found. */
2586 Dwarf_Half type; /* DW_AT_location for vars, DW_AT_lowpc for func's */
2587 char found; /* set if found. */
2591 char *file; /* Name of file containing vars or funcs */
2592 staticAddrList *addrList; /* List of vars and/or funcs. */
2593 int nAddrs; /* # of addrList's */
2594 int found; /* set if we've found this file already. */
2597 /* routines used to find addresses in /unix */
2598 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2599 void findMDebugStaticAddresses(staticNameList *, int, int);
2601 void findDwarfStaticAddresses(staticNameList *, int);
2602 void findElfAddresses(Dwarf_Debug, Dwarf_Die, staticNameList *);
2603 void getElfAddress(Dwarf_Debug, Dwarf_Die, staticAddrList *);
2605 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2606 #define AFS_N_FILELISTS 2
2607 #define AFS_SYMS_NEEDED 3
2608 #else /* AFS_SGI62_ENV */
2609 #define AFS_N_FILELISTS 1
2610 #endif /* AFS_SGI62_ENV */
2615 set_staticaddrs(void)
2617 staticNameList fileList[AFS_N_FILELISTS];
2619 fileList[0].addrList =
2620 (staticAddrList *) calloc(1, sizeof(staticAddrList));
2621 if (!fileList[0].addrList) {
2622 printf("set_staticaddrs: Can't calloc fileList[0].addrList\n");
2625 fileList[0].file = "nfs_server.c";
2626 fileList[0].found = 0;
2627 fileList[0].nAddrs = 1;
2628 fileList[0].addrList[0].name = "rfsdisptab_v2";
2629 fileList[0].addrList[0].type = DW_AT_location;
2630 fileList[0].addrList[0].found = 0;
2632 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2633 fileList[1].addrList =
2634 (staticAddrList *) calloc(2, sizeof(staticAddrList));
2635 if (!fileList[1].addrList) {
2636 printf("set_staticaddrs: Can't malloc fileList[1].addrList\n");
2639 fileList[1].file = "uipc_socket.c";
2640 fileList[1].found = 0;
2641 fileList[1].nAddrs = 2;
2642 fileList[1].addrList[0].name = "sblock";
2643 fileList[1].addrList[0].type = DW_AT_low_pc;
2644 fileList[1].addrList[0].found = 0;
2645 fileList[1].addrList[1].name = "sbunlock";
2646 fileList[1].addrList[1].type = DW_AT_low_pc;
2647 fileList[1].addrList[1].found = 0;
2649 if (64 != sysconf(_SC_KERN_POINTERS))
2650 findMDebugStaticAddresses(fileList, AFS_N_FILELISTS, AFS_SYMS_NEEDED);
2652 #endif /* AFS_SGI62_ENV */
2653 findDwarfStaticAddresses(fileList, AFS_N_FILELISTS);
2655 if (fileList[0].addrList[0].found) {
2656 afsd_call_syscall(AFSOP_NFSSTATICADDR2, fileList[0].addrList[0].addr.high,
2657 fileList[0].addrList[0].addr.low);
2660 printf("NFS V2 is not present in the kernel.\n");
2662 free(fileList[0].addrList);
2663 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2664 if (fileList[1].addrList[0].found && fileList[1].addrList[1].found) {
2665 afsd_call_syscall(AFSOP_SBLOCKSTATICADDR2,
2666 fileList[1].addrList[0].addr.high,
2667 fileList[1].addrList[0].addr.low,
2668 fileList[1].addrList[1].addr.high,
2669 fileList[1].addrList[1].addr.low);
2671 if (!fileList[1].addrList[0].found)
2672 printf("Can't find %s in kernel. Exiting.\n",
2673 fileList[1].addrList[0].name);
2674 if (!fileList[1].addrList[0].found)
2675 printf("Can't find %s in kernel. Exiting.\n",
2676 fileList[1].addrList[1].name);
2679 free(fileList[1].addrList);
2680 #endif /* AFS_SGI62_ENV */
2684 /* Find addresses for static variables and functions. */
2686 findDwarfStaticAddresses(staticNameList * nameList, int nLists)
2693 char *hname = (char *)0;
2694 Dwarf_Unsigned dwarf_access = O_RDONLY;
2695 Dwarf_Debug dwarf_debug;
2696 Dwarf_Error dwarf_error;
2697 Dwarf_Unsigned dwarf_cu_header_length;
2698 Dwarf_Unsigned dwarf_abbrev_offset;
2699 Dwarf_Half dwarf_address_size;
2700 Dwarf_Unsigned next_cu_header;
2701 Dwarf_Die dwarf_die;
2702 Dwarf_Die dwarf_next_die;
2703 Dwarf_Die dwarf_child_die;
2705 if (elf_version(EV_CURRENT) == EV_NONE) {
2706 printf("findDwarfStaticAddresses: Bad elf version.\n");
2710 if ((fd = open("/unix", O_RDONLY, 0)) < 0) {
2711 printf("findDwarfStaticAddresses: Failed to open /unix.\n");
2715 dwarf_init(fd, dwarf_access, NULL, NULL, &dwarf_debug, &dwarf_error);
2716 if (code != DW_DLV_OK) {
2717 /* Nope hope for the elves and dwarves, try intermediate code. */
2724 /* Run through the headers until we find ones for files we've
2725 * specified in nameList.
2728 dwarf_next_cu_header(dwarf_debug, &dwarf_cu_header_length, NULL,
2729 &dwarf_abbrev_offset, &dwarf_address_size,
2730 &next_cu_header, &dwarf_error);
2731 if (code == DW_DLV_NO_ENTRY) {
2733 } else if (code == DW_DLV_ERROR) {
2734 printf("findDwarfStaticAddresses: Error reading headers: %s\n",
2735 dwarf_errmsg(dwarf_error));
2739 code = dwarf_siblingof(dwarf_debug, NULL, &dwarf_die, &dwarf_error);
2740 if (code != DW_DLV_OK) {
2741 printf("findDwarfStaticAddresses: Can't get first die. %s\n",
2742 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2746 /* This is the header, test the name. */
2747 code = dwarf_diename(dwarf_die, &hname, &dwarf_error);
2748 if (code == DW_DLV_OK) {
2749 s = strrchr(hname, '/');
2750 for (i = 0; i < nLists; i++) {
2751 if (s && !strcmp(s + 1, nameList[i].file)) {
2752 findElfAddresses(dwarf_debug, dwarf_die, &nameList[i]);
2759 ("findDwarfStaticAddresses: Can't get name of current header. %s\n",
2760 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2763 dwarf_dealloc(dwarf_debug, hname, DW_DLA_STRING);
2765 if (found >= nLists) { /* we're done */
2770 /* Frees up all allocated space. */
2771 (void)dwarf_finish(dwarf_debug, &dwarf_error);
2776 findElfAddresses(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_die,
2777 staticNameList * nameList)
2780 Dwarf_Error dwarf_error;
2781 Dwarf_Die dwarf_next_die;
2782 Dwarf_Die dwarf_child_die;
2783 Dwarf_Attribute dwarf_return_attr;
2784 char *vname = (char *)0;
2788 /* Drop into this die to find names in addrList. */
2789 code = dwarf_child(dwarf_die, &dwarf_child_die, &dwarf_error);
2790 if (code != DW_DLV_OK) {
2791 printf("findElfAddresses: Can't get child die. %s\n",
2792 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2796 /* Try to find names in each sibling. */
2797 dwarf_next_die = (Dwarf_Die) 0;
2799 code = dwarf_diename(dwarf_child_die, &vname, &dwarf_error);
2800 /* It's possible that some siblings don't have names. */
2801 if (code == DW_DLV_OK) {
2802 for (i = 0; i < nameList->nAddrs; i++) {
2803 if (!nameList->addrList[i].found) {
2804 if (!strcmp(vname, nameList->addrList[i].name)) {
2805 getElfAddress(dwarf_debug, dwarf_child_die,
2806 &(nameList->addrList[i]));
2814 dwarf_dealloc(dwarf_debug, dwarf_next_die, DW_DLA_DIE);
2816 if (found >= nameList->nAddrs) { /* we're done. */
2820 dwarf_next_die = dwarf_child_die;
2822 dwarf_siblingof(dwarf_debug, dwarf_next_die, &dwarf_child_die,
2825 } while (code == DW_DLV_OK);
2828 /* Get address out of current die. */
2830 getElfAddress(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_child_die,
2831 staticAddrList * addrList)
2834 Dwarf_Error dwarf_error;
2835 Dwarf_Attribute dwarf_return_attr;
2836 Dwarf_Bool dwarf_return_bool;
2837 Dwarf_Locdesc *llbuf = NULL;
2838 Dwarf_Signed listlen;
2839 off64_t addr = (off64_t) 0;
2843 dwarf_hasattr(dwarf_child_die, addrList->type, &dwarf_return_bool,
2845 if ((code != DW_DLV_OK) || (!dwarf_return_bool)) {
2846 printf("getElfAddress: no address given for %s. %s\n", addrList->name,
2847 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2851 dwarf_attr(dwarf_child_die, addrList->type, &dwarf_return_attr,
2853 if (code != DW_DLV_OK) {
2854 printf("getElfAddress: Can't get attribute. %s\n",
2855 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2859 switch (addrList->type) {
2860 case DW_AT_location:
2862 dwarf_loclist(dwarf_return_attr, &llbuf, &listlen, &dwarf_error);
2863 if (code != DW_DLV_OK) {
2864 printf("getElfAddress: Can't get location for %s. %s\n",
2866 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2869 if ((listlen != 1) || (llbuf[0].ld_cents != 1)) {
2870 printf("getElfAddress: %s has more than one address.\n",
2874 addr = llbuf[0].ld_s[0].lr_number;
2879 dwarf_lowpc(dwarf_child_die, (Dwarf_Addr *) & addr, &dwarf_error);
2880 if (code != DW_DLV_OK) {
2881 printf("getElfAddress: Can't get lowpc for %s. %s\n",
2883 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2889 printf("getElfAddress: Bad case %d in switch.\n", addrList->type);
2893 addrList->addr.high = (addr >> 32) & 0xffffffff;
2894 addrList->addr.low = addr & 0xffffffff;
2895 addrList->found = 1;
2898 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2899 /* Find symbols in the .mdebug section for 32 bit kernels. */
2902 * On 32bit platforms, we're still using the ucode compilers to build
2903 * the kernel, so we need to get our static text/data from the .mdebug
2904 * section instead of the .dwarf sections.
2906 /* SearchNameList searches our bizarre structs for the given string.
2907 * If found, sets the found bit and the address and returns 1.
2908 * Not found returns 0.
2911 SearchNameList(char *name, afs_uint32 addr, staticNameList * nameList,
2915 for (i = 0; i < nLists; i++) {
2916 for (j = 0; j < nameList[i].nAddrs; j++) {
2917 if (nameList[i].addrList[j].found)
2919 if (!strcmp(name, nameList[i].addrList[j].name)) {
2920 nameList[i].addrList[j].addr.high = 0;
2921 nameList[i].addrList[j].addr.low = addr;
2922 nameList[i].addrList[j].found = 1;
2931 SearchMDebug(Elf_Scn * scnp, Elf32_Shdr * shdrp, staticNameList * nameList,
2932 int nLists, int needed)
2934 long *buf = (long *)(elf_getdata(scnp, NULL)->d_buf);
2935 u_long addr, mdoff = shdrp->sh_offset;
2937 SYMR *symbase, *symp, *symend;
2938 FDR *fdrbase, *fdrp;
2940 char *strbase, *str;
2945 addr = (__psunsigned_t) buf;
2946 hdrp = (HDRR *) addr;
2948 /* setup base addresses */
2949 addr = (u_long) buf + (u_long) (hdrp->cbFdOffset - mdoff);
2950 fdrbase = (FDR *) addr;
2951 addr = (u_long) buf + (u_long) (hdrp->cbSymOffset - mdoff);
2952 symbase = (SYMR *) addr;
2953 addr = (u_long) buf + (u_long) (hdrp->cbSsOffset - mdoff);
2954 strbase = (char *)addr;
2956 #define KEEPER(a,b) ((a == stStaticProc && b == scText) || \
2957 (a == stStatic && (b == scData || b == scBss || \
2958 b == scSBss || b == scSData)))
2960 for (fdrp = fdrbase; fdrp < &fdrbase[hdrp->ifdMax]; fdrp++) {
2961 str = strbase + fdrp->issBase + fdrp->rss;
2963 /* local symbols for each fd */
2964 for (symp = &symbase[fdrp->isymBase];
2965 symp < &symbase[fdrp->isymBase + fdrp->csym]; symp++) {
2966 if (KEEPER(symp->st, symp->sc)) {
2967 if (symp->value == 0)
2970 str = strbase + fdrp->issBase + symp->iss;
2971 /* Look for AFS symbols of interest */
2972 if (SearchNameList(str, symp->value, nameList, nLists)) {
2974 if (nFound >= needed)
2983 * returns section with the name of scn_name, & puts its header in shdr64 or
2984 * shdr32 based on elf's file type
2988 findMDebugSection(Elf * elf, char *scn_name)
2992 Elf_Scn *scn = NULL;
2996 if ((ehdr32 = elf32_getehdr(elf)) == NULL)
2999 if ((scn = elf_nextscn(elf, scn)) == NULL)
3001 if ((shdr32 = elf32_getshdr(scn)) == NULL)
3005 elf_strptr(elf, ehdr32->e_shstrndx, shdr32->sh_name)));
3012 findMDebugStaticAddresses(staticNameList * nameList, int nLists, int needed)
3016 Elf_Scn *mdebug_scn;
3017 Elf32_Shdr *mdebug_shdr;
3020 if ((fd = open("/unix", O_RDONLY)) == -1) {
3021 printf("findMDebugStaticAddresses: Failed to open /unix.\n");
3025 (void)elf_version(EV_CURRENT);
3026 if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
3028 ("findMDebugStaticAddresses: /unix doesn't seem to be an elf file\n");
3032 mdebug_scn = findMDebugSection(elf, ".mdebug");
3034 printf("findMDebugStaticAddresses: Can't find .mdebug section.\n");
3037 mdebug_shdr = elf32_getshdr(mdebug_scn);
3039 printf("findMDebugStaticAddresses: Can't find .mdebug header.\n");
3043 (void)SearchMDebug(mdebug_scn, mdebug_shdr, nameList, nLists, needed);
3049 #endif /* AFS_SGI62_ENV */
3051 #else /* AFS_SGI61_ENV */
3053 struct nlist nlunix[] = {
3060 int i, j, kmem, count;
3062 if ((kmem = open("/dev/kmem", O_RDONLY)) < 0) {
3063 printf("Warning: can't open /dev/kmem\n");
3066 if ((j = nlist("/unix", nlunix)) < 0) {
3067 printf("Warning: can't nlist /unix\n");
3070 i = nlunix[0].n_value;
3071 if (lseek(kmem, i, L_SET /*0 */ ) != i) {
3072 printf("Warning: can't lseek to %x\n", i);
3075 if ((j = read(kmem, &count, sizeof count)) != sizeof count) {
3076 printf("WARNING: kmem read at %x failed\n", i);
3081 #endif /* AFS_SGI61_ENV */
3082 #endif /* AFS_SGI53_ENV */
3084 struct afsd_syscall_args {
3096 * entry point for calling a syscall from another proc/thread.
3098 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
3101 * @retval NULL always
3104 call_syscall_thread(void *rock)
3106 struct afsd_syscall_args *args = rock;
3110 afsd_set_rx_rtpri();
3113 code = afsd_call_syscall(args->syscall, args->param1, args->param2,
3114 args->param3, args->param4, args->param5);
3115 if (code && args->syscall == AFSOP_START_CS) {
3116 printf("%s: No check server daemon in client.\n", args->rn);
3125 * common code for calling a syscall in another proc/thread.
3127 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
3128 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
3129 * let it run in the background
3130 * @param[in] rn the name of the running program
3131 * @param[in] syscall syscall to run
3134 fork_syscall_impl(int rx, int wait, const char *rn, long syscall, long param1,
3135 long param2, long param3, long param4, long param5)
3137 struct afsd_syscall_args *args;
3139 args = malloc(sizeof(*args));
3141 args->syscall = syscall;
3142 args->param1 = param1;
3143 args->param2 = param2;
3144 args->param3 = param3;
3145 args->param4 = param4;
3146 args->param5 = param5;
3150 afsd_fork(wait, call_syscall_thread, args);
3154 * call a syscall in another process or thread.
3157 fork_syscall(const char *rn, long syscall, long param1, long param2,
3158 long param3, long param4, long param5)
3160 fork_syscall_impl(0, 0, rn, syscall, param1, param2, param3, param4, param5);
3163 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
3165 * call a syscall in another process or thread, and give it RX priority.
3168 fork_rx_syscall(const char *rn, long syscall, long param1, long param2,
3169 long param3, long param4, long param5)
3171 fork_syscall_impl(1, 0, rn, syscall, param1, param2, param3, param4, param5);
3173 #endif /* AFS_SUN510_ENV || RXK_LISTENER_ENV */
3175 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
3177 * call a syscall in another process or thread, give it RX priority, and wait
3178 * for it to finish before returning.
3181 fork_rx_syscall_wait(const char *rn, long syscall, long param1, long param2,
3182 long param3, long param4, long param5)
3184 fork_syscall_impl(1, 1, rn, syscall, param1, param2, param3, param4, param5);
3186 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */