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"
72 #include <potpourri.h>
73 #include <afs/afsutil.h>
80 #include <sys/types.h>
87 /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is
89 #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV)
98 #ifdef HAVE_SYS_PARAM_H
99 #include <sys/param.h>
102 #ifdef HAVE_SYS_FS_TYPES_H
103 #include <sys/fs_types.h>
106 #if defined(HAVE_SYS_MOUNT_H) && !defined(AFS_ARM_DARWIN_ENV)
107 #include <sys/mount.h>
110 #ifdef HAVE_SYS_FCNTL_H
111 #include <sys/fcntl.h>
114 #ifdef HAVE_SYS_MNTTAB_H
115 #include <sys/mnttab.h>
118 #ifdef HAVE_SYS_MNTENT_H
119 #include <sys/mntent.h>
126 #ifdef HAVE_SYS_VFS_H
130 #ifdef HAVE_SYS_FSTYP_H
131 #include <sys/fstyp.h>
142 #include <netinet/in.h>
143 #include <afs/afs_args.h>
144 #include <afs/cellconfig.h>
146 #include <afs/afssyscalls.h>
147 #include <afs/afsutil.h>
148 #include <afs/sys_prototypes.h>
154 #include <libdwarf.h>
155 void set_staticaddrs(void);
156 #endif /* AFS_SGI61_ENV */
157 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
159 #include <symconst.h>
165 #ifdef AFS_DARWIN_ENV
166 #ifdef AFS_DARWIN80_ENV
167 #include <sys/ioctl.h>
168 #include <sys/xattr.h>
170 #include <CoreFoundation/CoreFoundation.h>
172 #include <SystemConfiguration/SystemConfiguration.h>
173 #include <SystemConfiguration/SCDynamicStore.h>
175 #ifndef AFS_ARM_DARWIN_ENV
176 #include <IOKit/pwr_mgt/IOPMLib.h>
177 #include <IOKit/IOMessage.h>
179 static io_connect_t root_port;
180 static IONotificationPortRef notify;
181 static io_object_t iterator;
184 static CFRunLoopSourceRef source;
186 static int event_pid;
188 #endif /* AFS_DARWIN_ENV */
190 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
191 #include <sys/statvfs.h>
193 #if defined(AFS_SUN_ENV)
196 #ifdef HAVE_SYS_STATFS_H
197 #include <sys/statfs.h>
206 #define CACHEINFOFILE "cacheinfo"
207 #define DCACHEFILE "CacheItems"
208 #define VOLINFOFILE "VolumeItems"
209 #define CELLINFOFILE "CellItems"
211 #define MAXIPADDRS 1024
213 char LclCellName[64];
215 #define MAX_CACHE_LOOPS 4
219 * Internet address (old style... should be updated). This was pulled out of the old 4.2
220 * version of <netinet/in.h>, since it's still useful.
225 u_char s_b1, s_b2, s_b3, s_b4;
232 #define s_host S_un.S_un_b.s_b2 /* host on imp */
233 #define s_net S_un.S_un_b.s_b1 /* network */
234 #define s_imp S_un.S_un_w.s_w2 /* imp */
235 #define s_impno S_un.S_un_b.s_b4 /* imp # */
236 #define s_lh S_un.S_un_b.s_b3 /* logical host */
239 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
240 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
241 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
242 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
243 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
246 * Global configuration variables.
248 static afs_int32 enable_rxbind = 0;
249 static afs_int32 afs_shutdown = 0;
250 static afs_int32 cacheBlocks; /*Num blocks in the cache */
251 static afs_int32 cacheFiles; /*Optimal # of files in workstation cache */
252 static afs_int32 rwpct = 0;
253 static afs_int32 ropct = 0;
254 static afs_int32 cacheStatEntries; /*Number of stat cache entries */
255 static char cacheBaseDir[1024]; /*Where the workstation AFS cache lives */
256 static char confDir[1024]; /*Where the workstation AFS configuration lives */
257 static char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
258 static char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
259 static char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
260 static char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
261 static char fullpn_VFile[1024]; /*Full pathname of data cache files */
262 static char *vFilePtr; /*Ptr to the number part of above pathname */
263 static int sawCacheMountDir = 0; /* from cmd line */
264 static int sawCacheBaseDir = 0;
265 static int sawCacheBlocks = 0;
266 static int sawDCacheSize = 0;
268 static int sawBiod = 0;
270 static int sawCacheStatEntries = 0;
271 char afsd_cacheMountDir[1024]; /*Mount directory for AFS */
272 static char rootVolume[64] = "root.afs"; /*AFS root volume name */
273 static afs_int32 cacheSetTime = FALSE; /*Keep checking time to avoid drift? */
275 static int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
277 static int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
279 static int ownerRWmode = 0600; /*Read/write OK by owner */
280 static int filesSet = 0; /*True if number of files explicitly set */
281 static int nFilesPerDir = 2048; /* # files per cache dir */
282 #if defined(AFS_CACHE_BYPASS)
283 #define AFSD_NDAEMONS 4
285 #define AFSD_NDAEMONS 2
287 static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */
288 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
289 static int dCacheSize; /* # of dcache entries */
290 static int vCacheSize = 200; /* # of volume cache entries */
291 static int rootVolSet = 0; /*True if root volume name explicitly set */
292 int addrNum; /*Cell server address index being printed */
293 static int cacheFlags = 0; /*Flags to cache manager */
295 static int nBiods = 5; /* AIX3.1 only */
297 static int preallocs = 400; /* Def # of allocated memory blocks */
298 static int enable_peer_stats = 0; /* enable rx stats */
299 static int enable_process_stats = 0; /* enable rx stats */
300 static int enable_afsdb = 0; /* enable AFSDB support */
301 static int enable_dynroot = 0; /* enable dynroot support */
302 static int enable_fakestat = 0; /* enable fakestat support */
303 static int enable_backuptree = 0; /* enable backup tree support */
304 static int enable_nomount = 0; /* do not mount */
305 static int enable_splitcache = 0;
306 static int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
307 int afsd_verbose = 0; /*Are we being chatty? */
308 int afsd_debug = 0; /*Are we printing debugging info? */
309 static int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
310 static int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */
313 #define AFSD_INO_T ino64_t
315 #define AFSD_INO_T afs_uint32
317 struct afsd_file_list {
319 struct afsd_file_list *next;
321 struct afsd_file_list **cache_dir_filelist = NULL;
322 int *cache_dir_list = NULL; /* Array of cache subdirs */
323 int *dir_for_V = NULL; /* Array: dir of each cache file.
324 * -1: file does not exist
325 * -2: file exists in top-level
326 * >=0: file exists in Dxxx
328 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
329 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
332 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
333 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
334 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
335 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
336 struct afs_cacheParams cparams; /* params passed to cache manager */
338 int PartSizeOverflow(char *path, int cs);
340 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
341 static void fork_rx_syscall_wait();
343 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
344 static void fork_rx_syscall();
346 static void fork_syscall();
348 #if defined(AFS_DARWIN_ENV) && !defined(AFS_ARM_DARWIN_ENV)
350 afsd_sleep_callback(void * refCon, io_service_t service,
351 natural_t messageType, void * messageArgument )
353 switch (messageType) {
354 case kIOMessageCanSystemSleep:
355 /* Idle sleep is about to kick in; can
356 prevent sleep by calling IOCancelPowerChange, otherwise
357 if we don't ack in 30s the system sleeps anyway */
360 IOAllowPowerChange(root_port, (long)messageArgument);
363 case kIOMessageSystemWillSleep:
364 /* The system WILL go to sleep. Ack or suffer delay */
366 IOAllowPowerChange(root_port, (long)messageArgument);
369 case kIOMessageSystemWillRestart:
370 /* The system WILL restart. Ack or suffer delay */
372 IOAllowPowerChange(root_port, (long)messageArgument);
375 case kIOMessageSystemWillPowerOn:
376 case kIOMessageSystemHasPoweredOn:
377 /* coming back from sleep */
379 IOAllowPowerChange(root_port, (long)messageArgument);
383 IOAllowPowerChange(root_port, (long)messageArgument);
389 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
391 /* parse multihomed address files */
392 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
398 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
399 AFSDIR_CLIENT_NETINFO_FILEPATH,
400 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
403 /* Note we're refreshing */
404 code = code | 0x40000000;
405 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
407 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
411 /* This function is called when the system's ip addresses may have changed. */
413 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
415 CFRunLoopTimerRef timer;
417 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
418 0.0, 0, 0, afsd_update_addresses, NULL);
419 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
420 kCFRunLoopDefaultMode);
425 afsd_event_cleanup(int signo) {
427 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
429 #ifndef AFS_ARM_DARWIN_ENV
430 IODeregisterForSystemPower(&iterator);
431 IOServiceClose(root_port);
432 IONotificationPortDestroy(notify);
437 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
439 afsd_install_events(void)
441 SCDynamicStoreContext ctx = {0};
442 SCDynamicStoreRef store;
444 #ifndef AFS_ARM_DARWIN_ENV
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);
493 if (source != NULL) {
494 CFRunLoopAddSource (CFRunLoopGetCurrent(),
495 source, kCFRunLoopDefaultMode);
498 signal(SIGTERM, afsd_event_cleanup);
504 /* ParseArgs is now obsolete, being handled by cmd */
506 /*------------------------------------------------------------------------------
510 * Open the file containing the description of the workstation's AFS cache
511 * and pull out its contents. The format of this file is as follows:
513 * cacheMountDir:cacheBaseDir:cacheBlocks
519 * 0 if everything went well,
523 * Nothing interesting.
527 *---------------------------------------------------------------------------*/
530 ParseCacheInfoFile(void)
532 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
533 FILE *cachefd; /*Descriptor for cache info file */
534 int parseResult; /*Result of our fscanf() */
535 afs_int32 tCacheBlocks;
536 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
539 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
541 cachefd = fopen(fullpn_CacheInfo, "r");
543 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
548 * Parse the contents of the cache info file. All chars up to the first
549 * colon are the AFS mount directory, all chars to the next colon are the
550 * full path name of the workstation cache directory and all remaining chars
551 * represent the number of blocks in the cache.
553 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
555 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
556 tCacheBaseDir, &tCacheBlocks);
559 * Regardless of how the parse went, we close the cache info file.
563 if (parseResult == EOF || parseResult < 3) {
564 printf("%s: Format error in cache info file!\n", rn);
565 if (parseResult == EOF)
566 printf("\tEOF encountered before any field parsed.\n");
568 printf("\t%d out of 3 fields successfully parsed.\n",
574 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
576 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
578 /* now copy in the fields not explicitly overridden by cmd args */
579 if (!sawCacheMountDir)
580 strcpy(afsd_cacheMountDir, tmd);
581 if (!sawCacheBaseDir)
582 strcpy(cacheBaseDir, tbd);
584 cacheBlocks = tCacheBlocks;
587 printf("%s: Cache info file successfully parsed:\n", rn);
589 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
590 tmd, tbd, tCacheBlocks);
592 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
593 return (PartSizeOverflow(tbd, cacheBlocks));
600 * All failures to open the partition are ignored. Also if the cache dir
601 * isn't a mounted partition it's also ignored since we can't guarantee
602 * what will be stored afterwards. Too many if's. This is now purely
603 * advisory. ODS with over 2G partition also gives warning message.
606 * 0 if everything went well,
610 PartSizeOverflow(char *path, int cs)
613 afs_int64 totalblks, mint;
614 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
615 struct statvfs statbuf;
617 if (statvfs(path, &statbuf) != 0) {
620 ("statvfs failed on %s; skip checking for adequate partition space\n",
624 totalblks = statbuf.f_blocks;
625 bsize = statbuf.f_frsize;
627 if (strcmp(statbuf.f_basetype, "jfs")) {
628 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
629 path, statbuf.f_basetype);
632 #endif /* AFS_AIX51_ENV */
634 #else /* AFS_HAVE_STATVFS */
635 struct statfs statbuf;
637 if (statfs(path, &statbuf) < 0) {
640 ("statfs failed on %s; skip checking for adequate partition space\n",
644 totalblks = statbuf.f_blocks;
645 bsize = statbuf.f_bsize;
648 return 0; /* success */
650 /* now free and totalblks are in fragment units, but we want them in 1K units */
652 totalblks *= (bsize / 1024);
654 totalblks /= (1024 / bsize);
657 mint = totalblks / 100 * 95;
660 ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n",
668 /*-----------------------------------------------------------------------------
672 * Given the final component of a filename expected to be a data cache file,
673 * return the integer corresponding to the file. Note: we reject names that
674 * are not a ``V'' followed by an integer. We also reject those names having
675 * the right format but lying outside the range [0..cacheFiles-1].
678 * fname : Char ptr to the filename to parse.
679 * max : integer for the highest number to accept
682 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
686 * Nothing interesting.
690 *---------------------------------------------------------------------------*/
693 doGetXFileNumber(char *fname, char filechar, int maxNum)
695 int computedVNumber; /*The computed file number we return */
696 int filenameLen; /*Number of chars in filename */
697 int currDigit; /*Current digit being processed */
700 * The filename must have at least two characters, the first of which must be a ``filechar''
701 * and the second of which cannot be a zero unless the file is exactly two chars long.
703 filenameLen = strlen(fname);
706 if (fname[0] != filechar)
708 if ((filenameLen > 2) && (fname[1] == '0'))
712 * Scan through the characters in the given filename, failing immediately if a non-digit
715 for (currDigit = 1; currDigit < filenameLen; currDigit++)
716 if (isdigit(fname[currDigit]) == 0)
720 * All relevant characters are digits. Pull out the decimal number they represent.
721 * Reject it if it's out of range, otherwise return it.
723 computedVNumber = atoi(++fname);
724 if (computedVNumber < cacheFiles)
725 return (computedVNumber);
731 GetVFileNumber(char *fname, int maxFile)
733 return doGetXFileNumber(fname, 'V', maxFile);
737 GetDDirNumber(char *fname, int maxDir)
739 return doGetXFileNumber(fname, 'D', maxDir);
743 /*-----------------------------------------------------------------------------
747 * Given a full pathname for a file we need to create for the workstation AFS
748 * cache, go ahead and create the file.
751 * fname : Full pathname of file to create.
752 * statp : A pointer to a stat buffer which, if NON-NULL, will be
756 * 0 iff the file was created,
760 * The given cache file has been found to be missing.
764 *---------------------------------------------------------------------------*/
767 CreateCacheSubDir(char *basename, int dirNum)
769 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
773 /* Build the new cache subdirectory */
774 sprintf(dir, "%s/D%d", basename, dirNum);
777 printf("%s: Creating cache subdir '%s'\n", rn, dir);
779 if ((ret = mkdir(dir, 0700)) != 0) {
780 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
786 /* Mark this directory as created */
787 cache_dir_list[dirNum] = 0;
789 /* And return success */
794 SetNoBackupAttr(char *fullpn)
796 #ifdef AFS_DARWIN80_ENV
799 ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem",
800 "com.apple.backupd", strlen("com.apple.backupd"), 0,
805 fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno));
812 MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile,
815 static char rn[] = "MoveCacheFile";
816 char from[1024], to[1024];
819 if (cache_dir_list[toDir] < 0
820 && (ret = CreateCacheSubDir(basename, toDir))) {
821 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
825 /* Build the from,to dir */
827 /* old-style location */
828 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
830 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
834 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
837 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
839 if ((ret = rename(from, to)) != 0) {
840 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
841 from, to, ret, errno);
846 /* Reset directory pointer; fix file counts */
847 dir_for_V[cacheFile] = toDir;
848 cache_dir_list[toDir]++;
849 if (fromDir < maxDir && fromDir >= 0)
850 cache_dir_list[fromDir]--;
856 CreateCacheFile(char *fname, struct stat *statp)
858 static char rn[] = "CreateCacheFile"; /*Routine name */
859 int cfd; /*File descriptor to AFS cache file */
860 int closeResult; /*Result of close() */
863 printf("%s: Creating cache file '%s'\n", rn, fname);
864 cfd = open(fname, createAndTrunc, ownerRWmode);
866 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
871 closeResult = fstat(cfd, statp);
874 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
879 closeResult = close(cfd);
882 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
891 CreateFileIfMissing(char *fullpn, int missing)
894 if (CreateCacheFile(fullpn, NULL))
895 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
900 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
902 if (unlink(fullpn_FileToDelete)) {
903 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
904 if (rmdir(fullpn_FileToDelete)) {
905 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
906 fullpn_FileToDelete, errno);
909 printf("%s: Can't unlink '%s', errno is %d\n", rn,
910 fullpn_FileToDelete, errno);
914 /*-----------------------------------------------------------------------------
918 * Sweep through the AFS cache directory, recording the inode number for
919 * each valid data cache file there. Also, delete any file that doesn't belong
920 * in the cache directory during this sweep, and remember which of the other
921 * residents of this directory were seen. After the sweep, we create any data
922 * cache files that were missing.
925 * vFilesFound : Set to the number of data cache files found.
928 * 0 if everything went well,
932 * This routine may be called several times. If the number of data cache files
933 * found is less than the global cacheFiles, then the caller will need to call it
934 * again to record the inodes of the missing zero-length data cache files created
935 * in the previous call.
938 * Fills up the global inode_for_V array, may create and/or delete files as
940 *---------------------------------------------------------------------------*/
944 doSweepAFSCache(int *vFilesFound,
945 char *directory, /* /path/to/cache/directory */
946 int dirNum, /* current directory number */
947 int maxDir) /* maximum directory number */
949 static char rn[] = "doSweepAFSCache"; /* Routine Name */
950 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
951 char *fileToDelete; /*Ptr to last component of above */
952 DIR *cdirp; /*Ptr to cache directory structure */
954 struct dirent64 *currp; /*Current directory entry */
956 struct dirent *currp; /*Current directory entry */
958 int vFileNum; /*Data cache file's associated number */
959 int thisDir; /* A directory number */
963 printf("%s: Opening cache directory '%s'\n", rn, directory);
965 if (chmod(directory, 0700)) { /* force it to be 700 */
966 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
970 cdirp = opendir(directory);
971 if (cdirp == (DIR *) 0) {
972 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
977 * Scan the directory entries, remembering data cache file inodes
978 * and the existance of other important residents. Recurse into
979 * the data subdirectories.
981 * Delete all files and directories that don't belong here.
983 sprintf(fullpn_FileToDelete, "%s/", directory);
984 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
987 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
989 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
993 printf("%s: Current directory entry:\n", rn);
994 #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV)
995 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino,
996 currp->d_reclen, currp->d_name);
997 #elif defined(AFS_DFBSD_ENV)
998 printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name);
1000 printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino,
1001 currp->d_reclen, currp->d_name);
1006 * If dirNum < 0, we are a top-level cache directory and should
1007 * only contain sub-directories and other sundry files. Therefore,
1008 * V-files are valid only if dirNum >= 0, and Directories are only
1009 * valid if dirNum < 0.
1012 if (*(currp->d_name) == 'V'
1013 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1016 * Found a valid data cache filename. Remember this
1017 * file's inode, directory, and bump the number of files found
1018 * total and in this directory.
1020 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1021 inode_for_V[vFileNum] = currp->d_ino;
1023 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1026 /* If we're in a real subdir, mark this file to be moved
1027 * if we've already got too many files in this directory
1029 assert(dirNum >= 0);
1030 cache_dir_list[dirNum]++; /* keep directory's file count */
1031 if (cache_dir_list[dirNum] > nFilesPerDir) {
1032 /* Too many files -- add to filelist */
1033 struct afsd_file_list *tmp = (struct afsd_file_list *)
1034 malloc(sizeof(*tmp));
1037 ("%s: MALLOC FAILED allocating file_list entry\n",
1040 tmp->fileNum = vFileNum;
1041 tmp->next = cache_dir_filelist[dirNum];
1042 cache_dir_filelist[dirNum] = tmp;
1047 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1048 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1050 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1051 /* Found a valid cachefile sub-Directory. Remember this number
1052 * and recurse into it. Note that subdirs cannot have subdirs.
1055 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1057 /* This directory is going away, but figure out if there
1058 * are any cachefiles in here that should be saved by
1059 * moving them to other cache directories. This directory
1060 * will be removed later.
1065 /* Save the highest directory number we've seen */
1066 if (vFileNum > highDir)
1069 /* If this directory is staying, be sure to mark it as 'found' */
1071 cache_dir_list[vFileNum] = 0;
1073 /* Print the dirname for recursion */
1074 sprintf(fileToDelete, "%s", currp->d_name);
1076 /* Note: vFileNum is the directory number */
1078 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1079 (retval == 1 ? 0 : -1));
1081 printf("%s: Recursive sweep failed on directory %s\n", rn,
1085 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1087 * Found the file holding the dcache entries.
1089 missing_DCacheFile = 0;
1090 SetNoBackupAttr(fullpn_DCacheFile);
1091 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1093 * Found the file holding the volume info.
1095 missing_VolInfoFile = 0;
1096 SetNoBackupAttr(fullpn_VolInfoFile);
1097 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1099 * Found the file holding the cell info.
1101 missing_CellInfoFile = 0;
1102 SetNoBackupAttr(fullpn_CellInfoFile);
1103 } else if ((strcmp(currp->d_name, ".") == 0)
1104 || (strcmp(currp->d_name, "..") == 0) ||
1105 #ifdef AFS_DECOSF_ENV
1106 /* these are magic AdvFS files */
1107 (strcmp(currp->d_name, ".tags") == 0)
1108 || (strcmp(currp->d_name, "quota.user") == 0)
1109 || (strcmp(currp->d_name, "quota.group") == 0) ||
1111 #ifdef AFS_LINUX22_ENV
1112 /* this is the ext3 journal file */
1113 (strcmp(currp->d_name, ".journal") == 0) ||
1115 (strcmp(currp->d_name, "lost+found") == 0)) {
1117 * Don't do anything - this file is legit, and is to be left alone.
1121 * This file/directory doesn't belong in the cache. Nuke it.
1123 sprintf(fileToDelete, "%s", currp->d_name);
1125 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1126 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1133 * Create all the cache files that are missing.
1135 CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile);
1136 CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile);
1137 CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile);
1139 /* ADJUST CACHE FILES */
1141 /* First, let's walk through the list of files and figure out
1142 * if there are any leftover files in extra directories or
1143 * missing files. Move the former and create the latter in
1144 * subdirs with extra space.
1147 thisDir = 0; /* Keep track of which subdir has space */
1149 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
1150 if (dir_for_V[vFileNum] == -1) {
1151 /* This file does not exist. Create it in the first
1152 * subdir that still has extra space.
1154 while (thisDir < maxDir
1155 && cache_dir_list[thisDir] >= nFilesPerDir)
1157 if (thisDir >= maxDir)
1158 printf("%s: can't find directory to create V%d\n", rn,
1162 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1163 assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0);
1165 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
1167 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1168 if (cache_dir_list[thisDir] < 0
1169 && CreateCacheSubDir(directory, thisDir))
1170 printf("%s: Can't create directory for '%s'\n", rn,
1172 if (CreateCacheFile(fullpn_VFile, &statb))
1173 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1175 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1176 inode_for_V[vFileNum] = statb.st_ino;
1178 dir_for_V[vFileNum] = thisDir;
1179 cache_dir_list[thisDir]++;
1182 SetNoBackupAttr(fullpn_VFile);
1185 } else if (dir_for_V[vFileNum] >= maxDir
1186 || dir_for_V[vFileNum] == -2) {
1187 /* This file needs to move; move it to the first subdir
1188 * that has extra space. (-2 means it's in the toplevel)
1190 while (thisDir < maxDir
1191 && cache_dir_list[thisDir] >= nFilesPerDir)
1193 if (thisDir >= maxDir)
1194 printf("%s: can't find directory to move V%d\n", rn,
1198 (directory, dir_for_V[vFileNum], thisDir, vFileNum,
1200 /* Cannot move. Ignore this file??? */
1207 /* At this point, we've moved all of the valid cache files
1208 * into the valid subdirs, and created all the extra
1209 * cachefiles we need to create. Next, rebalance any subdirs
1210 * with too many cache files into the directories with not
1211 * enough cache files. Note that thisDir currently sits at
1212 * the lowest subdir that _may_ have room.
1215 for (dirNum = 0; dirNum < maxDir; dirNum++) {
1216 struct afsd_file_list *thisFile;
1218 for (thisFile = cache_dir_filelist[dirNum];
1219 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
1220 thisFile = thisFile->next) {
1221 while (thisDir < maxDir
1222 && cache_dir_list[thisDir] >= nFilesPerDir)
1224 if (thisDir >= maxDir)
1225 printf("%s: can't find directory to move V%d\n", rn,
1229 (directory, dirNum, thisDir, thisFile->fileNum,
1231 /* Cannot move. Ignore this file??? */
1235 } /* for each file to move */
1236 } /* for each directory */
1238 /* Remove any directories >= maxDir -- they should be empty */
1239 for (; highDir >= maxDir; highDir--) {
1240 sprintf(fileToDelete, "D%d", highDir);
1241 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1247 * Close the directory, return success.
1250 printf("%s: Closing cache directory.\n", rn);
1256 CheckCacheBaseDir(char *dir)
1258 struct stat statbuf;
1261 return "cache base dir not specified";
1263 if (stat(dir, &statbuf) != 0) {
1264 return "unable to stat cache base directory";
1267 /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */
1269 #ifdef AFS_LINUX24_ENV
1272 struct statfs statfsbuf;
1274 res = statfs(dir, &statfsbuf);
1276 return "unable to statfs cache base directory";
1278 #if !defined(LINUX_USE_FH)
1279 if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */
1280 return "cannot use reiserfs as cache partition";
1281 } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */
1282 return "cannot use xfs as cache partition";
1283 } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */
1284 return "cannot use tmpfs as cache partition";
1285 } else if (statfsbuf.f_type != 0xEF53) {
1286 return "must use ext2 or ext3 for cache partition";
1295 struct statfs statfsbuf;
1298 res = statfs(dir, &statfsbuf);
1300 return "unable to statfs cache base directory";
1303 if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) {
1304 return "unable to determine filesystem type for cache base dir";
1307 if (strcmp(name, "hfs")) {
1308 return "can only use hfs filesystem for cache partition on hpux";
1317 struct stat statmnt, statci;
1319 if ((stat(dir, &statci) == 0)
1320 && ((vfstab = fopen(MNTTAB, "r")) != NULL)) {
1321 while (getmntent(vfstab, &mnt) == 0) {
1322 if (strcmp(dir, mnt.mnt_mountp) != 0) {
1326 if (cp = hasmntopt(&mnt, "dev="))
1328 (int)strtol(cp + strlen("dev="), (char **)NULL,
1331 if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0))
1332 rdev = statmnt.st_dev;
1334 if ((rdev == statci.st_dev)
1335 && (hasmntopt(&mnt, "logging") != NULL)) {
1339 "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n";
1353 SweepAFSCache(int *vFilesFound)
1355 static char rn[] = "SweepAFSCache"; /*Routine name */
1356 int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir;
1361 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1363 printf("%s: Memory Cache, no cache sweep done\n", rn);
1367 if (cache_dir_list == NULL) {
1368 cache_dir_list = (int *)malloc(maxDir * sizeof(*cache_dir_list));
1369 if (cache_dir_list == NULL) {
1370 printf("%s: Malloc Failed!\n", rn);
1373 for (i = 0; i < maxDir; i++)
1374 cache_dir_list[i] = -1; /* Does not exist */
1377 if (cache_dir_filelist == NULL) {
1378 cache_dir_filelist = (struct afsd_file_list **)
1379 malloc(maxDir * sizeof(*cache_dir_filelist));
1380 if (cache_dir_filelist == NULL) {
1381 printf("%s: Malloc Failed!\n", rn);
1384 memset(cache_dir_filelist, 0, maxDir * sizeof(*cache_dir_filelist));
1387 if (dir_for_V == NULL) {
1388 dir_for_V = (int *)malloc(cacheFiles * sizeof(*dir_for_V));
1389 if (dir_for_V == NULL) {
1390 printf("%s: Malloc Failed!\n", rn);
1393 for (i = 0; i < cacheFiles; i++)
1394 dir_for_V[i] = -1; /* Does not exist */
1397 /* Note, setting dirNum to -2 here will cause cachefiles found in
1398 * the toplevel directory to be marked in directory "-2". This
1399 * allows us to differentiate between 'file not seen' (-1) and
1400 * 'file seen in top-level' (-2). Then when we try to move the
1401 * file into a subdirectory, we know it's in the top-level instead
1402 * of some other cache subdir.
1404 return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir);
1408 ConfigCell(struct afsconf_cell *aci, void *arock, struct afsconf_dir *adir)
1412 afs_int32 cellFlags = 0;
1413 afs_int32 hosts[MAXHOSTSPERCELL];
1415 /* figure out if this is the home cell */
1416 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1418 cellFlags = 2; /* not home, suid is forbidden */
1420 /* build address list */
1421 for (i = 0; i < MAXHOSTSPERCELL; i++)
1422 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1424 if (aci->linkedCell)
1425 cellFlags |= 4; /* Flag that linkedCell arg exists,
1426 * for upwards compatibility */
1428 /* configure one cell */
1429 code = afsd_call_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */
1430 aci->name, /* cell name */
1431 cellFlags, /* is this the home cell? */
1432 aci->linkedCell); /* Linked cell, if any */
1434 printf("Adding cell '%s': error %d\n", aci->name, code);
1439 ConfigCellAlias(struct afsconf_cellalias *aca,
1440 void *arock, struct afsconf_dir *adir)
1442 /* push the alias into the kernel */
1443 afsd_call_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1448 AfsdbLookupHandler(void)
1450 afs_int32 kernelMsg[64];
1451 char acellName[128];
1453 struct afsconf_cell acellInfo;
1458 acellName[0] = '\0';
1460 #ifdef AFS_DARWIN_ENV
1461 /* Fork the event handler also. */
1464 afsd_install_events();
1466 } else if (code != -1) {
1471 /* On some platforms you only get 4 args to an AFS call */
1472 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1474 afsd_call_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1475 if (code) { /* Something is wrong? */
1480 if (*acellName == 1) /* Shutting down */
1483 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1488 kernelMsg[0] = acellInfo.numServers;
1489 if (acellInfo.timeout)
1490 kernelMsg[1] = acellInfo.timeout - time(0);
1493 for (i = 0; i < acellInfo.numServers; i++)
1494 kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1495 strncpy(acellName, acellInfo.name, sizeof(acellName));
1496 acellName[sizeof(acellName) - 1] = '\0';
1499 #ifdef AFS_DARWIN_ENV
1500 kill(event_pid, SIGTERM);
1504 #ifdef AFS_DARWIN_ENV
1509 struct afs_uspc_param *uspc;
1513 uspc = (struct afs_uspc_param *)malloc(sizeof(struct afs_uspc_param));
1514 memset(uspc, 0, sizeof(struct afs_uspc_param));
1515 memset(srcName, 0, sizeof(srcName));
1516 memset(dstName, 0, sizeof(dstName));
1518 /* brscount starts at 0 */
1524 char srcpath[BUFSIZ];
1525 char dstpath[BUFSIZ];
1527 /* pushing in a buffer this large */
1530 code = afsd_call_syscall(AFSOP_BKG_HANDLER, uspc, srcName, dstName);
1531 if (code) { /* Something is wrong? */
1532 if (code == -2) /* shutting down */
1540 switch (uspc->reqtype) {
1542 snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1543 uspc->req.umv.sCell, uspc->req.umv.sVolume,
1544 uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName);
1545 snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1546 uspc->req.umv.dCell, uspc->req.umv.dVolume,
1547 uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName);
1548 if ((child = fork()) == 0) {
1549 /* first child does cp; second, rm. mv would re-enter. */
1551 switch (uspc->req.umv.idtype) {
1553 if (setuid(uspc->req.umv.id) != 0) {
1559 break; /* notreached */
1561 execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath,
1562 dstpath, (char *) NULL);
1564 if (child == (pid_t) -1) {
1569 if (waitpid(child, &status, 0) == -1)
1571 else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) {
1572 if ((child = fork()) == 0) {
1573 switch (uspc->req.umv.idtype) {
1575 if (setuid(uspc->req.umv.id) != 0) {
1581 break; /* notreached */
1583 execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--",
1584 srcpath, (char *) NULL);
1586 if (child == (pid_t) -1) {
1590 if (waitpid(child, &status, 0) == -1)
1592 else if (WIFEXITED(status) != 0) {
1593 /* rm exit status */
1594 uspc->retval = WEXITSTATUS(status);
1596 /* rm signal status */
1597 uspc->retval = -(WTERMSIG(status));
1600 /* error from cp: exit or signal status */
1601 uspc->retval = (WIFEXITED(status) != 0) ?
1602 WEXITSTATUS(status) : -(WTERMSIG(status));
1604 memset(srcName, 0, sizeof(srcName));
1605 memset(dstName, 0, sizeof(dstName));
1609 /* unknown req type */
1618 afsdb_thread(void *rock)
1620 /* Since the AFSDB lookup handler runs as a user process,
1621 * need to drop the controlling TTY, etc.
1623 if (afsd_daemon(0, 0) == -1) {
1624 printf("Error starting AFSDB lookup handler: %s\n",
1628 AfsdbLookupHandler();
1633 daemon_thread(void *rock)
1635 #ifdef AFS_DARWIN80_ENV
1636 /* Since the background daemon runs as a user process,
1637 * need to drop the controlling TTY, etc.
1639 if (afsd_daemon(0, 0) == -1) {
1640 printf("Error starting background daemon: %s\n",
1645 #elif defined(AFS_AIX32_ENV)
1646 afsd_call_syscall(AFSOP_START_BKG, 0);
1648 afsd_call_syscall(AFSOP_START_BKG);
1655 rmtsysd_thread(void *rock)
1660 #endif /* !UKERNEL */
1663 mainproc(struct cmd_syndesc *as, void *arock)
1665 afs_int32 code; /*Result of fork() */
1669 #ifdef AFS_SGI65_ENV
1670 struct sched_param sp;
1673 #ifdef AFS_SGI_VNODE_GLUE
1674 if (afs_init_kernel_config(-1) < 0) {
1675 printf("Can't determine NUMA configuration, not starting AFS.\n");
1680 /* call atoi on the appropriate parsed results */
1681 if (as->parms[0].items) {
1683 cacheBlocks = atoi(as->parms[0].items->data);
1686 if (as->parms[1].items) {
1688 cacheFiles = atoi(as->parms[1].items->data);
1689 filesSet = 1; /* set when spec'd on cmd line */
1691 if (as->parms[2].items) {
1693 strcpy(rootVolume, as->parms[2].items->data);
1696 if (as->parms[3].items) {
1698 cacheStatEntries = atoi(as->parms[3].items->data);
1699 sawCacheStatEntries = 1;
1701 if (as->parms[4].items) {
1703 cacheBaseDir[0] = '\0';
1704 sawCacheBaseDir = 1;
1705 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1707 if (as->parms[5].items) {
1709 strcpy(cacheBaseDir, as->parms[5].items->data);
1710 sawCacheBaseDir = 1;
1712 if (as->parms[6].items) {
1714 strcpy(afsd_cacheMountDir, as->parms[6].items->data);
1715 sawCacheMountDir = 1;
1717 if (as->parms[7].items) {
1719 nDaemons = atoi(as->parms[7].items->data);
1721 if (as->parms[8].items) {
1723 cacheSetTime = FALSE;
1725 if (as->parms[9].items) {
1729 if (as->parms[10].items) {
1733 printf("-rmtsys not supported for UKERNEL\n");
1737 if (as->parms[11].items) {
1742 if (as->parms[12].items) {
1744 chunkSize = atoi(as->parms[12].items->data);
1745 if (chunkSize < 0 || chunkSize > 30) {
1747 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1751 if (as->parms[13].items) {
1753 dCacheSize = atoi(as->parms[13].items->data);
1756 if (as->parms[14].items) {
1758 vCacheSize = atoi(as->parms[14].items->data);
1760 if (as->parms[15].items) {
1762 #ifndef AFS_AIX32_ENV
1764 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1766 nBiods = atoi(as->parms[15].items->data);
1770 if (as->parms[16].items) {
1772 preallocs = atoi(as->parms[16].items->data);
1774 strcpy(confDir, AFSDIR_CLIENT_ETC_DIRPATH);
1775 if (as->parms[17].items) {
1777 strcpy(confDir, as->parms[17].items->data);
1779 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1780 if (as->parms[18].items) {
1782 printf("afsd: Ignoring obsolete -logfile flag\n");
1784 if (as->parms[19].items) {
1786 afsd_CloseSynch = 1;
1788 if (as->parms[20].items) {
1792 * Cold shutdown is the default
1794 printf("afsd: Shutting down all afs processes and afs state\n");
1795 code = afsd_call_syscall(AFSOP_SHUTDOWN, 1);
1797 printf("afsd: AFS still mounted; Not shutting down\n");
1802 if (as->parms[21].items) {
1803 /* -enable_peer_stats */
1804 enable_peer_stats = 1;
1806 if (as->parms[22].items) {
1807 /* -enable_process_stats */
1808 enable_process_stats = 1;
1810 if (as->parms[23].items) {
1811 /* -mem_alloc_sleep */
1812 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1814 if (as->parms[24].items) {
1818 if (as->parms[25].items) {
1819 /* -files_per_subdir */
1820 int res = atoi(as->parms[25].items->data);
1821 if (res < 10 || res > (1 << 30)) {
1823 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1824 as->parms[25].items->data);
1829 if (as->parms[26].items) {
1833 if (as->parms[27].items) {
1835 enable_fakestat = 2;
1837 if (as->parms[28].items) {
1839 enable_fakestat = 1;
1841 if (as->parms[29].items) {
1845 if (as->parms[30].items) {
1847 enable_backuptree = 1;
1849 if (as->parms[31].items) {
1853 if (as->parms[32].items) {
1855 cacheSetTime = TRUE;
1858 /* set rx_extraPackets */
1859 if (as->parms[33].items) {
1861 int rxpck = atoi(as->parms[33].items->data);
1862 printf("afsd: set rxpck = %d\n", rxpck);
1863 code = afsd_call_syscall(AFSOP_SET_RXPCK, rxpck);
1865 printf("afsd: failed to set rxpck\n");
1869 if (as->parms[34].items) {
1871 if (!as->parms[34].items->data ||
1872 ((c = strchr(as->parms[34].items->data, '/')) == NULL))
1874 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1876 ropct = atoi((char *)c + 1);
1878 rwpct = atoi((char *)as->parms[30].items->data);
1879 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1881 enable_splitcache = 1;
1885 if (as->parms[35].items) {
1886 #ifdef AFS_MAXVCOUNT_ENV
1887 /* -disable-dynamic-vcaches */
1888 afsd_dynamic_vcaches = FALSE;
1890 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1894 #ifdef AFS_MAXVCOUNT_ENV
1896 /* -dynamic-vcaches */
1897 afsd_dynamic_vcaches = TRUE;
1901 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1905 if (as->parms[36].items) {
1907 rxmaxmtu = atoi(as->parms[36].items->data);
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 /* do some random computations in memcache case to get things to work
1951 * reasonably no matter which parameters you set.
1953 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1954 /* memory cache: size described either as blocks or dcache entries, but
1958 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1960 if (sawDCacheSize) {
1961 if (chunkSize == 0) {
1962 chunkSize = 13; /* 8k default chunksize for memcache */
1964 if (sawCacheBlocks) {
1966 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1970 /* compute the cache size based on # of chunks times the chunk size */
1971 i = (1 << chunkSize); /* bytes per chunk */
1972 cacheBlocks = i * dCacheSize;
1973 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1975 if (chunkSize == 0) {
1976 /* Try to autotune the memcache chunksize based on size
1977 * of memcache. This is done on the assumption that approx
1978 * 1024 chunks is suitable, it's a balance between enough
1979 * chunks to be useful and ramping up nicely when using larger
1980 * memcache to improve bulk read/write performance
1983 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1986 /* compute the dcache size from overall cache size and chunk size */
1987 if (chunkSize > 10) {
1988 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1989 } else if (chunkSize < 10) {
1990 dCacheSize = (cacheBlocks << (10 - chunkSize));
1992 dCacheSize = cacheBlocks;
1994 /* don't have to set sawDCacheSize here since it isn't overwritten
1995 * by ParseCacheInfoFile.
1999 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2001 /* kernel computes # of dcache entries as min of cacheFiles and
2002 * dCacheSize, so we now make them equal.
2004 cacheFiles = dCacheSize;
2007 * Compute the number of cache files based on cache size,
2008 * but only if -files isn't given on the command line.
2009 * Don't let # files be so small as to prevent full utilization
2010 * of the cache unless user has explicitly asked for it.
2012 if (chunkSize == 0) {
2013 /* Set chunksize to 256kB - 1MB depending on cache size */
2014 if (cacheBlocks < 500000) {
2016 } else if (cacheBlocks < 1000000) {
2023 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2025 cacheFiles = max(cacheFiles, 1000);
2027 /* Always allow more files than chunks. Presume average V-file
2028 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2029 * have a grad student write a paper). i is KILOBYTES.
2031 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2032 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2034 /* never permit more files than blocks, while leaving space for
2035 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2036 * CacheItems is 50 Bytes / file (== 1K/20)
2038 #define CACHEITMSZ (cacheFiles / 20)
2039 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2040 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2041 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2043 /* Sanity check: If the obtained number of disk cache files
2044 * is larger than the number of available (4k) disk blocks, we're
2045 * doing something wrong. Fail hard so we can fix the bug instead
2046 * of silently hiding it like before */
2048 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2050 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2051 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2054 if (cacheFiles < 100)
2055 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2059 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2062 /* This actually needs to
2064 2) not second-guess when a chunksize comes from the command line
2065 3) be less, um, small. 2^2??
2067 /* Sanity check chunkSize */
2068 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2069 chunkSize = min(chunkSize, i);
2070 chunkSize = max(chunkSize, 2);
2072 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2075 if (!sawDCacheSize) {
2076 dCacheSize = cacheFiles / 2;
2077 if (dCacheSize > 10000) {
2080 if (dCacheSize < 2000) {
2084 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2087 if (!sawCacheStatEntries) {
2088 if (chunkSize <= 13) {
2089 cacheStatEntries = dCacheSize / 4;
2090 } else if (chunkSize >= 16) {
2091 cacheStatEntries = dCacheSize * 1.5;
2093 cacheStatEntries = dCacheSize;
2096 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2100 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
2102 * Create and zero the inode table for the desired cache files.
2104 inode_for_V = (AFSD_INO_T *) malloc(cacheFiles * sizeof(AFSD_INO_T));
2105 if (inode_for_V == (AFSD_INO_T *) 0) {
2107 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2111 memset(inode_for_V, '\0', (cacheFiles * sizeof(AFSD_INO_T)));
2113 printf("%s: %d inode_for_V entries at 0x%x, %lu bytes\n", rn,
2114 cacheFiles, inode_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
2118 * Set up all the pathnames we'll need for later.
2120 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2121 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2122 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2123 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2124 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2126 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)
2127 && (fsTypeMsg = CheckCacheBaseDir(cacheBaseDir))) {
2129 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2131 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2137 * Set up all the kernel processes needed for AFS.
2140 setpgrp(getpid(), 0);
2144 * Set the primary cell name.
2146 afsd_call_syscall(AFSOP_SET_THISCELL, LclCellName);
2148 /* Initialize RX daemons and services */
2150 /* initialize the rx random number generator from user space */
2152 /* parse multihomed address files */
2153 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2157 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2158 AFSDIR_CLIENT_NETINFO_FILEPATH,
2159 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2162 code = code | 0x80000000;
2163 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2165 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2169 /* Set realtime priority for most threads to same as for biod's. */
2170 afsd_set_afsd_rtpri();
2172 #ifdef AFS_SGI53_ENV
2173 #ifdef AFS_SGI61_ENV
2175 #else /* AFS_SGI61_ENV */
2176 code = get_nfsstaticaddr();
2178 afsd_call_syscall(AFSOP_NFSSTATICADDR, code);
2179 #endif /* AFS_SGI61_ENV */
2180 #endif /* AFS_SGI_53_ENV */
2182 /* Start listener, then callback listener. Lastly, start rx event daemon.
2183 * Change in ordering is so that Linux port has socket fd in listener
2185 * preallocs are passed for both listener and callback server. Only
2186 * the one which actually does the initialization uses them though.
2188 if (preallocs < cacheStatEntries + 50)
2189 preallocs = cacheStatEntries + 50;
2190 #ifdef RXK_LISTENER_ENV
2192 printf("%s: Forking rx listener daemon.\n", rn);
2193 # ifdef AFS_SUN510_ENV
2194 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2195 enable_peer_stats, enable_process_stats);
2196 # else /* !AFS_SUN510_ENV */
2197 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2198 enable_process_stats);
2199 # endif /* !AFS_SUN510_ENV */
2202 printf("%s: Forking rx callback listener.\n", rn);
2203 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs);
2204 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
2206 printf("%s: Forking rxevent daemon.\n", rn);
2207 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2212 printf("%s: Forking AFSDB lookup handler.\n", rn);
2213 afsd_fork(0, afsdb_thread, NULL);
2216 code = afsd_call_syscall(AFSOP_BASIC_INIT, 1);
2218 printf("%s: Error %d in basic initialization.\n", rn, code);
2223 * Tell the kernel some basic information about the workstation's cache.
2227 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2228 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2230 memset(&cparams, '\0', sizeof(cparams));
2231 cparams.cacheScaches = cacheStatEntries;
2232 cparams.cacheFiles = cacheFiles;
2233 cparams.cacheBlocks = cacheBlocks;
2234 cparams.cacheDcaches = dCacheSize;
2235 cparams.cacheVolumes = vCacheSize;
2236 cparams.chunkSize = chunkSize;
2237 cparams.setTimeFlag = cacheSetTime;
2238 cparams.memCacheFlag = cacheFlags;
2239 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2240 afsd_call_syscall(AFSOP_CACHEINIT, &cparams);
2242 /* do it before we init the cache inodes */
2243 if (enable_splitcache) {
2244 afsd_call_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2245 afsd_call_syscall(AFSOP_BUCKETPCT, 2, ropct);
2248 if (afsd_CloseSynch)
2249 afsd_call_syscall(AFSOP_CLOSEWAIT);
2252 * Sweep the workstation AFS cache directory, remembering the inodes of
2253 * valid files and deleting extraneous files. Keep sweeping until we
2254 * have the right number of data cache files or we've swept too many
2257 * This also creates files in the cache directory like VolumeItems and
2258 * CellItems, and thus must be ran before those are sent to the kernel.
2261 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2263 /* Memory-cache based system doesn't need any of this */
2264 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2267 if (SweepAFSCache(&vFilesFound)) {
2268 printf("%s: Error on sweep %d of workstation AFS cache \
2269 directory.\n", rn, cacheIteration);
2274 ("%s: %d out of %d data cache files found in sweep %d.\n",
2275 rn, vFilesFound, cacheFiles, cacheIteration);
2276 } while ((vFilesFound < cacheFiles)
2277 && (cacheIteration < MAX_CACHE_LOOPS));
2278 } else if (afsd_verbose)
2279 printf("%s: Using memory cache, not swept\n", rn);
2282 * Pass the kernel the name of the workstation cache file holding the
2286 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2288 /* once again, meaningless for a memory-based cache. */
2289 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2290 afsd_call_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2293 * Pass the kernel the name of the workstation cache file holding the
2297 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2298 fullpn_CellInfoFile);
2299 afsd_call_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2303 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2304 code = afsd_call_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2306 printf("%s: Error seting rxmaxmtu\n", rn);
2309 if (enable_dynroot) {
2311 printf("%s: Enabling dynroot support in kernel.\n", rn);
2312 code = afsd_call_syscall(AFSOP_SET_DYNROOT, 1);
2314 printf("%s: Error enabling dynroot support.\n", rn);
2317 if (enable_fakestat) {
2319 printf("%s: Enabling fakestat support in kernel.\n", rn);
2320 code = afsd_call_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2322 printf("%s: Error enabling fakestat support.\n", rn);
2325 if (enable_backuptree) {
2327 printf("%s: Enabling backup tree support in kernel.\n", rn);
2328 code = afsd_call_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2330 printf("%s: Error enabling backup tree support.\n", rn);
2334 * Tell the kernel about each cell in the configuration.
2336 afsconf_CellApply(cdir, ConfigCell, NULL);
2337 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2339 /* Initialize AFS daemon threads. */
2341 printf("%s: Forking AFS daemon.\n", rn);
2342 fork_syscall(rn, AFSOP_START_AFS);
2345 printf("%s: Forking Check Server Daemon.\n", rn);
2346 fork_syscall(rn, AFSOP_START_CS);
2349 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2350 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2351 /* Add one because for sgi we always "steal" the first daemon for a
2352 * different task if we only have a 4K stack.
2356 for (i = 0; i < nDaemons; i++) {
2357 afsd_fork(0, daemon_thread, NULL);
2359 #ifdef AFS_AIX32_ENV
2361 nBiods = nDaemons * 2;
2364 for (i = 0; i < nBiods; i++) {
2365 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2370 * If the root volume has been explicitly set, tell the kernel.
2374 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2376 afsd_call_syscall(AFSOP_ROOTVOLUME, rootVolume);
2380 * Pass the kernel the name of the workstation cache file holding the
2381 * volume information.
2384 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2385 fullpn_VolInfoFile);
2386 /* once again, meaningless for a memory-based cache. */
2387 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2388 afsd_call_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2391 * Give the kernel the names of the AFS files cached on the workstation's
2396 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2397 rn, cacheFiles, cacheBaseDir);
2398 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2399 /* ... and again ... */
2400 int nocachefile = 0;
2401 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2403 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2404 code = afsd_call_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2406 if (currVFile == 0) {
2409 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2410 rn, cacheFiles, cacheBaseDir);
2414 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2421 /* fall through to setup-by-inode */
2423 #ifdef AFS_SGI62_ENV
2424 afsd_call_syscall(AFSOP_CACHEINODE,
2425 (afs_uint32) (inode_for_V[currVFile] >> 32),
2426 (afs_uint32) (inode_for_V[currVFile] & 0xffffffff));
2427 #elif !(defined(LINUX_USE_FH) || defined(AFS_CACHE_VNODE_PATH))
2428 afsd_call_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2431 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2439 * All the necessary info has been passed into the kernel to run an AFS
2440 * system. Give the kernel our go-ahead.
2443 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2445 afsd_call_syscall(AFSOP_GO, cacheSetTime);
2448 * At this point, we have finished passing the kernel all the info
2449 * it needs to set up the AFS. Mount the AFS root.
2451 printf("%s: All AFS daemons started.\n", rn);
2454 printf("%s: Forking trunc-cache daemon.\n", rn);
2455 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2457 if (!enable_nomount) {
2458 afsd_mount_afs(rn, afsd_cacheMountDir);
2464 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2465 afsd_fork(0, rmtsysd_thread, NULL);
2467 #endif /* !UKERNEL */
2469 * Exit successfully.
2474 #include "AFS_component_version_number.c"
2479 struct cmd_syndesc *ts;
2481 ts = cmd_CreateSyntax(NULL, mainproc, NULL, "start AFS");
2484 cmd_AddParm(ts, "-blocks", CMD_SINGLE, CMD_OPTIONAL,
2485 "1024 byte blocks in cache");
2486 cmd_AddParm(ts, "-files", CMD_SINGLE, CMD_OPTIONAL, "files in cache");
2487 cmd_AddParm(ts, "-rootvol", CMD_SINGLE, CMD_OPTIONAL,
2488 "name of AFS root volume");
2489 cmd_AddParm(ts, "-stat", CMD_SINGLE, CMD_OPTIONAL,
2490 "number of stat entries");
2491 cmd_AddParm(ts, "-memcache", CMD_FLAG, CMD_OPTIONAL, "run diskless");
2492 cmd_AddParm(ts, "-cachedir", CMD_SINGLE, CMD_OPTIONAL, "cache directory");
2493 cmd_AddParm(ts, "-mountdir", CMD_SINGLE, CMD_OPTIONAL, "mount location");
2494 cmd_AddParm(ts, "-daemons", CMD_SINGLE, CMD_OPTIONAL,
2495 "number of daemons to use");
2496 cmd_AddParm(ts, "-nosettime", CMD_FLAG, CMD_OPTIONAL,
2497 "don't set the time");
2498 cmd_AddParm(ts, "-verbose", CMD_FLAG, CMD_OPTIONAL,
2499 "display lots of information");
2500 cmd_AddParm(ts, "-rmtsys", CMD_FLAG, CMD_OPTIONAL,
2501 "start NFS rmtsysd program");
2504 cmd_AddParm(ts, "-debug", CMD_FLAG, CMD_OPTIONAL, "display debug info");
2505 cmd_AddParm(ts, "-chunksize", CMD_SINGLE, CMD_OPTIONAL,
2506 "log(2) of chunk size");
2507 cmd_AddParm(ts, "-dcache", CMD_SINGLE, CMD_OPTIONAL,
2508 "number of dcache entries");
2509 cmd_AddParm(ts, "-volumes", CMD_SINGLE, CMD_OPTIONAL,
2510 "number of volume entries");
2511 cmd_AddParm(ts, "-biods", CMD_SINGLE, CMD_OPTIONAL,
2512 "number of bkg I/O daemons (aix vm)");
2513 cmd_AddParm(ts, "-prealloc", CMD_SINGLE, CMD_OPTIONAL,
2514 "number of 'small' preallocated blocks");
2515 cmd_AddParm(ts, "-confdir", CMD_SINGLE, CMD_OPTIONAL,
2516 "configuration directory");
2517 cmd_AddParm(ts, "-logfile", CMD_SINGLE, CMD_OPTIONAL,
2518 "Place to keep the CM log");
2519 cmd_AddParm(ts, "-waitclose", CMD_FLAG, CMD_OPTIONAL,
2520 "make close calls synchronous");
2521 cmd_AddParm(ts, "-shutdown", CMD_FLAG, CMD_OPTIONAL,
2522 "Shutdown all afs state");
2524 cmd_AddParm(ts, "-enable_peer_stats", CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2525 "Collect rpc statistics by peer");
2526 cmd_AddParm(ts, "-enable_process_stats", CMD_FLAG,
2527 CMD_OPTIONAL | CMD_HIDE,
2528 "Collect rpc statistics for this process");
2529 cmd_AddParm(ts, "-mem_alloc_sleep", CMD_FLAG, (CMD_OPTIONAL | CMD_HIDE),
2530 "Allow sleeps when allocating memory cache");
2531 cmd_AddParm(ts, "-afsdb", CMD_FLAG, (CMD_OPTIONAL),
2532 "Enable AFSDB support");
2533 cmd_AddParm(ts, "-files_per_subdir", CMD_SINGLE, CMD_OPTIONAL,
2534 "log(2) of the number of cache files per cache subdirectory");
2535 cmd_AddParm(ts, "-dynroot", CMD_FLAG, CMD_OPTIONAL,
2536 "Enable dynroot support");
2537 cmd_AddParm(ts, "-fakestat", CMD_FLAG, CMD_OPTIONAL,
2538 "Enable fakestat support for cross-cell mounts");
2539 cmd_AddParm(ts, "-fakestat-all", CMD_FLAG, CMD_OPTIONAL,
2540 "Enable fakestat support for all mounts");
2541 cmd_AddParm(ts, "-nomount", CMD_FLAG, CMD_OPTIONAL, "Do not mount AFS");
2542 cmd_AddParm(ts, "-backuptree", CMD_FLAG, CMD_OPTIONAL,
2543 "Prefer backup volumes for mointpoints in backup volumes");
2545 cmd_AddParm(ts, "-rxbind", CMD_FLAG, CMD_OPTIONAL,
2546 "Bind the Rx socket (one interface only)");
2547 cmd_AddParm(ts, "-settime", CMD_FLAG, CMD_OPTIONAL, "set the time");
2548 cmd_AddParm(ts, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2549 "set rx_extraPackets to this value");
2550 cmd_AddParm(ts, "-splitcache", CMD_SINGLE, CMD_OPTIONAL,
2551 "Percentage RW versus RO in cache (specify as 60/40)");
2552 cmd_AddParm(ts, "-disable-dynamic-vcaches", CMD_FLAG, CMD_OPTIONAL,
2553 "disable stat/vcache cache growing as needed");
2554 cmd_AddParm(ts, "-rxmaxmtu", CMD_SINGLE, CMD_OPTIONAL, "set rx max MTU to use");
2558 afsd_parse(int argc, char **argv)
2560 return cmd_Dispatch(argc, argv);
2563 #ifdef AFS_SGI53_ENV
2564 #ifdef AFS_SGI61_ENV
2565 /* The dwarf structures are searched to find entry points of static functions
2566 * and the addresses of static variables. The file name as well as the
2567 * sybmol name is reaquired.
2570 /* Contains list of names to find in given file. */
2572 char *name; /* Name of variable or function. */
2573 afs_hyper_t addr; /* Address of function, undefined if not found. */
2574 Dwarf_Half type; /* DW_AT_location for vars, DW_AT_lowpc for func's */
2575 char found; /* set if found. */
2579 char *file; /* Name of file containing vars or funcs */
2580 staticAddrList *addrList; /* List of vars and/or funcs. */
2581 int nAddrs; /* # of addrList's */
2582 int found; /* set if we've found this file already. */
2585 /* routines used to find addresses in /unix */
2586 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2587 void findMDebugStaticAddresses(staticNameList *, int, int);
2589 void findDwarfStaticAddresses(staticNameList *, int);
2590 void findElfAddresses(Dwarf_Debug, Dwarf_Die, staticNameList *);
2591 void getElfAddress(Dwarf_Debug, Dwarf_Die, staticAddrList *);
2593 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2594 #define AFS_N_FILELISTS 2
2595 #define AFS_SYMS_NEEDED 3
2596 #else /* AFS_SGI62_ENV */
2597 #define AFS_N_FILELISTS 1
2598 #endif /* AFS_SGI62_ENV */
2603 set_staticaddrs(void)
2605 staticNameList fileList[AFS_N_FILELISTS];
2607 fileList[0].addrList =
2608 (staticAddrList *) calloc(1, sizeof(staticAddrList));
2609 if (!fileList[0].addrList) {
2610 printf("set_staticaddrs: Can't calloc fileList[0].addrList\n");
2613 fileList[0].file = "nfs_server.c";
2614 fileList[0].found = 0;
2615 fileList[0].nAddrs = 1;
2616 fileList[0].addrList[0].name = "rfsdisptab_v2";
2617 fileList[0].addrList[0].type = DW_AT_location;
2618 fileList[0].addrList[0].found = 0;
2620 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2621 fileList[1].addrList =
2622 (staticAddrList *) calloc(2, sizeof(staticAddrList));
2623 if (!fileList[1].addrList) {
2624 printf("set_staticaddrs: Can't malloc fileList[1].addrList\n");
2627 fileList[1].file = "uipc_socket.c";
2628 fileList[1].found = 0;
2629 fileList[1].nAddrs = 2;
2630 fileList[1].addrList[0].name = "sblock";
2631 fileList[1].addrList[0].type = DW_AT_low_pc;
2632 fileList[1].addrList[0].found = 0;
2633 fileList[1].addrList[1].name = "sbunlock";
2634 fileList[1].addrList[1].type = DW_AT_low_pc;
2635 fileList[1].addrList[1].found = 0;
2637 if (64 != sysconf(_SC_KERN_POINTERS))
2638 findMDebugStaticAddresses(fileList, AFS_N_FILELISTS, AFS_SYMS_NEEDED);
2640 #endif /* AFS_SGI62_ENV */
2641 findDwarfStaticAddresses(fileList, AFS_N_FILELISTS);
2643 if (fileList[0].addrList[0].found) {
2644 afsd_call_syscall(AFSOP_NFSSTATICADDR2, fileList[0].addrList[0].addr.high,
2645 fileList[0].addrList[0].addr.low);
2648 printf("NFS V2 is not present in the kernel.\n");
2650 free(fileList[0].addrList);
2651 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2652 if (fileList[1].addrList[0].found && fileList[1].addrList[1].found) {
2653 afsd_call_syscall(AFSOP_SBLOCKSTATICADDR2,
2654 fileList[1].addrList[0].addr.high,
2655 fileList[1].addrList[0].addr.low,
2656 fileList[1].addrList[1].addr.high,
2657 fileList[1].addrList[1].addr.low);
2659 if (!fileList[1].addrList[0].found)
2660 printf("Can't find %s in kernel. Exiting.\n",
2661 fileList[1].addrList[0].name);
2662 if (!fileList[1].addrList[0].found)
2663 printf("Can't find %s in kernel. Exiting.\n",
2664 fileList[1].addrList[1].name);
2667 free(fileList[1].addrList);
2668 #endif /* AFS_SGI62_ENV */
2672 /* Find addresses for static variables and functions. */
2674 findDwarfStaticAddresses(staticNameList * nameList, int nLists)
2681 char *hname = (char *)0;
2682 Dwarf_Unsigned dwarf_access = O_RDONLY;
2683 Dwarf_Debug dwarf_debug;
2684 Dwarf_Error dwarf_error;
2685 Dwarf_Unsigned dwarf_cu_header_length;
2686 Dwarf_Unsigned dwarf_abbrev_offset;
2687 Dwarf_Half dwarf_address_size;
2688 Dwarf_Unsigned next_cu_header;
2689 Dwarf_Die dwarf_die;
2690 Dwarf_Die dwarf_next_die;
2691 Dwarf_Die dwarf_child_die;
2693 if (elf_version(EV_CURRENT) == EV_NONE) {
2694 printf("findDwarfStaticAddresses: Bad elf version.\n");
2698 if ((fd = open("/unix", O_RDONLY, 0)) < 0) {
2699 printf("findDwarfStaticAddresses: Failed to open /unix.\n");
2703 dwarf_init(fd, dwarf_access, NULL, NULL, &dwarf_debug, &dwarf_error);
2704 if (code != DW_DLV_OK) {
2705 /* Nope hope for the elves and dwarves, try intermediate code. */
2712 /* Run through the headers until we find ones for files we've
2713 * specified in nameList.
2716 dwarf_next_cu_header(dwarf_debug, &dwarf_cu_header_length, NULL,
2717 &dwarf_abbrev_offset, &dwarf_address_size,
2718 &next_cu_header, &dwarf_error);
2719 if (code == DW_DLV_NO_ENTRY) {
2721 } else if (code == DW_DLV_ERROR) {
2722 printf("findDwarfStaticAddresses: Error reading headers: %s\n",
2723 dwarf_errmsg(dwarf_error));
2727 code = dwarf_siblingof(dwarf_debug, NULL, &dwarf_die, &dwarf_error);
2728 if (code != DW_DLV_OK) {
2729 printf("findDwarfStaticAddresses: Can't get first die. %s\n",
2730 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2734 /* This is the header, test the name. */
2735 code = dwarf_diename(dwarf_die, &hname, &dwarf_error);
2736 if (code == DW_DLV_OK) {
2737 s = strrchr(hname, '/');
2738 for (i = 0; i < nLists; i++) {
2739 if (s && !strcmp(s + 1, nameList[i].file)) {
2740 findElfAddresses(dwarf_debug, dwarf_die, &nameList[i]);
2747 ("findDwarfStaticAddresses: Can't get name of current header. %s\n",
2748 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2751 dwarf_dealloc(dwarf_debug, hname, DW_DLA_STRING);
2753 if (found >= nLists) { /* we're done */
2758 /* Frees up all allocated space. */
2759 (void)dwarf_finish(dwarf_debug, &dwarf_error);
2764 findElfAddresses(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_die,
2765 staticNameList * nameList)
2768 Dwarf_Error dwarf_error;
2769 Dwarf_Die dwarf_next_die;
2770 Dwarf_Die dwarf_child_die;
2771 Dwarf_Attribute dwarf_return_attr;
2772 char *vname = (char *)0;
2776 /* Drop into this die to find names in addrList. */
2777 code = dwarf_child(dwarf_die, &dwarf_child_die, &dwarf_error);
2778 if (code != DW_DLV_OK) {
2779 printf("findElfAddresses: Can't get child die. %s\n",
2780 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2784 /* Try to find names in each sibling. */
2785 dwarf_next_die = (Dwarf_Die) 0;
2787 code = dwarf_diename(dwarf_child_die, &vname, &dwarf_error);
2788 /* It's possible that some siblings don't have names. */
2789 if (code == DW_DLV_OK) {
2790 for (i = 0; i < nameList->nAddrs; i++) {
2791 if (!nameList->addrList[i].found) {
2792 if (!strcmp(vname, nameList->addrList[i].name)) {
2793 getElfAddress(dwarf_debug, dwarf_child_die,
2794 &(nameList->addrList[i]));
2802 dwarf_dealloc(dwarf_debug, dwarf_next_die, DW_DLA_DIE);
2804 if (found >= nameList->nAddrs) { /* we're done. */
2808 dwarf_next_die = dwarf_child_die;
2810 dwarf_siblingof(dwarf_debug, dwarf_next_die, &dwarf_child_die,
2813 } while (code == DW_DLV_OK);
2816 /* Get address out of current die. */
2818 getElfAddress(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_child_die,
2819 staticAddrList * addrList)
2822 Dwarf_Error dwarf_error;
2823 Dwarf_Attribute dwarf_return_attr;
2824 Dwarf_Bool dwarf_return_bool;
2825 Dwarf_Locdesc *llbuf = NULL;
2826 Dwarf_Signed listlen;
2827 off64_t addr = (off64_t) 0;
2831 dwarf_hasattr(dwarf_child_die, addrList->type, &dwarf_return_bool,
2833 if ((code != DW_DLV_OK) || (!dwarf_return_bool)) {
2834 printf("getElfAddress: no address given for %s. %s\n", addrList->name,
2835 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2839 dwarf_attr(dwarf_child_die, addrList->type, &dwarf_return_attr,
2841 if (code != DW_DLV_OK) {
2842 printf("getElfAddress: Can't get attribute. %s\n",
2843 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2847 switch (addrList->type) {
2848 case DW_AT_location:
2850 dwarf_loclist(dwarf_return_attr, &llbuf, &listlen, &dwarf_error);
2851 if (code != DW_DLV_OK) {
2852 printf("getElfAddress: Can't get location for %s. %s\n",
2854 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2857 if ((listlen != 1) || (llbuf[0].ld_cents != 1)) {
2858 printf("getElfAddress: %s has more than one address.\n",
2862 addr = llbuf[0].ld_s[0].lr_number;
2867 dwarf_lowpc(dwarf_child_die, (Dwarf_Addr *) & addr, &dwarf_error);
2868 if (code != DW_DLV_OK) {
2869 printf("getElfAddress: Can't get lowpc for %s. %s\n",
2871 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2877 printf("getElfAddress: Bad case %d in switch.\n", addrList->type);
2881 addrList->addr.high = (addr >> 32) & 0xffffffff;
2882 addrList->addr.low = addr & 0xffffffff;
2883 addrList->found = 1;
2886 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2887 /* Find symbols in the .mdebug section for 32 bit kernels. */
2890 * On 32bit platforms, we're still using the ucode compilers to build
2891 * the kernel, so we need to get our static text/data from the .mdebug
2892 * section instead of the .dwarf sections.
2894 /* SearchNameList searches our bizarre structs for the given string.
2895 * If found, sets the found bit and the address and returns 1.
2896 * Not found returns 0.
2899 SearchNameList(char *name, afs_uint32 addr, staticNameList * nameList,
2903 for (i = 0; i < nLists; i++) {
2904 for (j = 0; j < nameList[i].nAddrs; j++) {
2905 if (nameList[i].addrList[j].found)
2907 if (!strcmp(name, nameList[i].addrList[j].name)) {
2908 nameList[i].addrList[j].addr.high = 0;
2909 nameList[i].addrList[j].addr.low = addr;
2910 nameList[i].addrList[j].found = 1;
2919 SearchMDebug(Elf_Scn * scnp, Elf32_Shdr * shdrp, staticNameList * nameList,
2920 int nLists, int needed)
2922 long *buf = (long *)(elf_getdata(scnp, NULL)->d_buf);
2923 u_long addr, mdoff = shdrp->sh_offset;
2925 SYMR *symbase, *symp, *symend;
2926 FDR *fdrbase, *fdrp;
2928 char *strbase, *str;
2933 addr = (__psunsigned_t) buf;
2934 hdrp = (HDRR *) addr;
2936 /* setup base addresses */
2937 addr = (u_long) buf + (u_long) (hdrp->cbFdOffset - mdoff);
2938 fdrbase = (FDR *) addr;
2939 addr = (u_long) buf + (u_long) (hdrp->cbSymOffset - mdoff);
2940 symbase = (SYMR *) addr;
2941 addr = (u_long) buf + (u_long) (hdrp->cbSsOffset - mdoff);
2942 strbase = (char *)addr;
2944 #define KEEPER(a,b) ((a == stStaticProc && b == scText) || \
2945 (a == stStatic && (b == scData || b == scBss || \
2946 b == scSBss || b == scSData)))
2948 for (fdrp = fdrbase; fdrp < &fdrbase[hdrp->ifdMax]; fdrp++) {
2949 str = strbase + fdrp->issBase + fdrp->rss;
2951 /* local symbols for each fd */
2952 for (symp = &symbase[fdrp->isymBase];
2953 symp < &symbase[fdrp->isymBase + fdrp->csym]; symp++) {
2954 if (KEEPER(symp->st, symp->sc)) {
2955 if (symp->value == 0)
2958 str = strbase + fdrp->issBase + symp->iss;
2959 /* Look for AFS symbols of interest */
2960 if (SearchNameList(str, symp->value, nameList, nLists)) {
2962 if (nFound >= needed)
2971 * returns section with the name of scn_name, & puts its header in shdr64 or
2972 * shdr32 based on elf's file type
2976 findMDebugSection(Elf * elf, char *scn_name)
2980 Elf_Scn *scn = NULL;
2984 if ((ehdr32 = elf32_getehdr(elf)) == NULL)
2987 if ((scn = elf_nextscn(elf, scn)) == NULL)
2989 if ((shdr32 = elf32_getshdr(scn)) == NULL)
2993 elf_strptr(elf, ehdr32->e_shstrndx, shdr32->sh_name)));
3000 findMDebugStaticAddresses(staticNameList * nameList, int nLists, int needed)
3004 Elf_Scn *mdebug_scn;
3005 Elf32_Shdr *mdebug_shdr;
3008 if ((fd = open("/unix", O_RDONLY)) == -1) {
3009 printf("findMDebugStaticAddresses: Failed to open /unix.\n");
3013 (void)elf_version(EV_CURRENT);
3014 if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
3016 ("findMDebugStaticAddresses: /unix doesn't seem to be an elf file\n");
3020 mdebug_scn = findMDebugSection(elf, ".mdebug");
3022 printf("findMDebugStaticAddresses: Can't find .mdebug section.\n");
3025 mdebug_shdr = elf32_getshdr(mdebug_scn);
3027 printf("findMDebugStaticAddresses: Can't find .mdebug header.\n");
3031 (void)SearchMDebug(mdebug_scn, mdebug_shdr, nameList, nLists, needed);
3037 #endif /* AFS_SGI62_ENV */
3039 #else /* AFS_SGI61_ENV */
3041 struct nlist nlunix[] = {
3048 int i, j, kmem, count;
3050 if ((kmem = open("/dev/kmem", O_RDONLY)) < 0) {
3051 printf("Warning: can't open /dev/kmem\n");
3054 if ((j = nlist("/unix", nlunix)) < 0) {
3055 printf("Warning: can't nlist /unix\n");
3058 i = nlunix[0].n_value;
3059 if (lseek(kmem, i, L_SET /*0 */ ) != i) {
3060 printf("Warning: can't lseek to %x\n", i);
3063 if ((j = read(kmem, &count, sizeof count)) != sizeof count) {
3064 printf("WARNING: kmem read at %x failed\n", i);
3069 #endif /* AFS_SGI61_ENV */
3070 #endif /* AFS_SGI53_ENV */
3072 struct afsd_syscall_args {
3084 * entry point for calling a syscall from another proc/thread.
3086 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
3089 * @retval NULL always
3092 call_syscall_thread(void *rock)
3094 struct afsd_syscall_args *args = rock;
3098 afsd_set_rx_rtpri();
3101 code = afsd_call_syscall(args->syscall, args->param1, args->param2,
3102 args->param3, args->param4, args->param5);
3103 if (code && args->syscall == AFSOP_START_CS) {
3104 printf("%s: No check server daemon in client.\n", args->rn);
3113 * common code for calling a syscall in another proc/thread.
3115 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
3116 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
3117 * let it run in the background
3118 * @param[in] rn the name of the running program
3119 * @param[in] syscall syscall to run
3122 fork_syscall_impl(int rx, int wait, const char *rn, long syscall, long param1,
3123 long param2, long param3, long param4, long param5)
3125 struct afsd_syscall_args *args;
3127 args = malloc(sizeof(*args));
3129 args->syscall = syscall;
3130 args->param1 = param1;
3131 args->param2 = param2;
3132 args->param3 = param3;
3133 args->param4 = param4;
3134 args->param5 = param5;
3138 afsd_fork(wait, call_syscall_thread, args);
3142 * call a syscall in another process or thread.
3145 fork_syscall(const char *rn, long syscall, long param1, long param2,
3146 long param3, long param4, long param5)
3148 fork_syscall_impl(0, 0, rn, syscall, param1, param2, param3, param4, param5);
3151 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
3153 * call a syscall in another process or thread, and give it RX priority.
3156 fork_rx_syscall(const char *rn, long syscall, long param1, long param2,
3157 long param3, long param4, long param5)
3159 fork_syscall_impl(1, 0, rn, syscall, param1, param2, param3, param4, param5);
3161 #endif /* AFS_SUN510_ENV || RXK_LISTENER_ENV */
3163 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
3165 * call a syscall in another process or thread, give it RX priority, and wait
3166 * for it to finish before returning.
3169 fork_rx_syscall_wait(const char *rn, long syscall, long param1, long param2,
3170 long param3, long param4, long param5)
3172 fork_syscall_impl(1, 1, rn, syscall, param1, param2, param3, param4, param5);
3174 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */