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 #ifdef HAVE_SYS_MOUNT_H
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 <mach/mach.h>
171 #include <mach/mach_port.h>
172 #include <mach/mach_interface.h>
173 #include <mach/mach_init.h>
175 #include <CoreFoundation/CoreFoundation.h>
177 #include <SystemConfiguration/SystemConfiguration.h>
178 #include <SystemConfiguration/SCDynamicStore.h>
180 #include <IOKit/pwr_mgt/IOPMLib.h>
181 #include <IOKit/IOMessage.h>
183 static io_connect_t root_port;
184 static IONotificationPortRef notify;
185 static io_object_t iterator;
186 static CFRunLoopSourceRef source;
188 static int event_pid;
190 #endif /* AFS_DARWIN_ENV */
192 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
193 #include <sys/statvfs.h>
195 #if defined(AFS_SUN_ENV)
198 #ifdef HAVE_SYS_STATFS_H
199 #include <sys/statfs.h>
208 #define CACHEINFOFILE "cacheinfo"
209 #define DCACHEFILE "CacheItems"
210 #define VOLINFOFILE "VolumeItems"
211 #define CELLINFOFILE "CellItems"
213 #define MAXIPADDRS 1024
215 char LclCellName[64];
217 #define MAX_CACHE_LOOPS 4
221 * Internet address (old style... should be updated). This was pulled out of the old 4.2
222 * version of <netinet/in.h>, since it's still useful.
227 u_char s_b1, s_b2, s_b3, s_b4;
234 #define s_host S_un.S_un_b.s_b2 /* host on imp */
235 #define s_net S_un.S_un_b.s_b1 /* network */
236 #define s_imp S_un.S_un_w.s_w2 /* imp */
237 #define s_impno S_un.S_un_b.s_b4 /* imp # */
238 #define s_lh S_un.S_un_b.s_b3 /* logical host */
241 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
242 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
243 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
244 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
245 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
248 * Global configuration variables.
250 static afs_int32 enable_rxbind = 0;
251 static afs_int32 afs_shutdown = 0;
252 static afs_int32 cacheBlocks; /*Num blocks in the cache */
253 static afs_int32 cacheFiles; /*Optimal # of files in workstation cache */
254 static afs_int32 rwpct = 0;
255 static afs_int32 ropct = 0;
256 static afs_int32 cacheStatEntries; /*Number of stat cache entries */
257 static char cacheBaseDir[1024]; /*Where the workstation AFS cache lives */
258 static char confDir[1024]; /*Where the workstation AFS configuration lives */
259 static char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
260 static char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
261 static char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
262 static char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
263 static char fullpn_VFile[1024]; /*Full pathname of data cache files */
264 static char *vFilePtr; /*Ptr to the number part of above pathname */
265 static int sawCacheMountDir = 0; /* from cmd line */
266 static int sawCacheBaseDir = 0;
267 static int sawCacheBlocks = 0;
268 static int sawDCacheSize = 0;
270 static int sawBiod = 0;
272 static int sawCacheStatEntries = 0;
273 char afsd_cacheMountDir[1024]; /*Mount directory for AFS */
274 static char rootVolume[64] = "root.afs"; /*AFS root volume name */
275 static afs_int32 cacheSetTime = FALSE; /*Keep checking time to avoid drift? */
277 static int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
279 static int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
281 static int ownerRWmode = 0600; /*Read/write OK by owner */
282 static int filesSet = 0; /*True if number of files explicitly set */
283 static int nFilesPerDir = 2048; /* # files per cache dir */
284 #if defined(AFS_CACHE_BYPASS)
285 #define AFSD_NDAEMONS 4
287 #define AFSD_NDAEMONS 2
289 static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */
290 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
291 static int dCacheSize; /* # of dcache entries */
292 static int vCacheSize = 200; /* # of volume cache entries */
293 static int rootVolSet = 0; /*True if root volume name explicitly set */
294 int addrNum; /*Cell server address index being printed */
295 static int cacheFlags = 0; /*Flags to cache manager */
297 static int nBiods = 5; /* AIX3.1 only */
299 static int preallocs = 400; /* Def # of allocated memory blocks */
300 static int enable_peer_stats = 0; /* enable rx stats */
301 static int enable_process_stats = 0; /* enable rx stats */
302 static int enable_afsdb = 0; /* enable AFSDB support */
303 static int enable_dynroot = 0; /* enable dynroot support */
304 static int enable_fakestat = 0; /* enable fakestat support */
305 static int enable_backuptree = 0; /* enable backup tree support */
306 static int enable_nomount = 0; /* do not mount */
307 static int enable_splitcache = 0;
308 static int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
309 int afsd_verbose = 0; /*Are we being chatty? */
310 int afsd_debug = 0; /*Are we printing debugging info? */
311 static int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
312 static int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */
315 #define AFSD_INO_T ino64_t
317 #define AFSD_INO_T afs_uint32
319 struct afsd_file_list {
321 struct afsd_file_list *next;
323 struct afsd_file_list **cache_dir_filelist = NULL;
324 int *cache_dir_list = NULL; /* Array of cache subdirs */
325 int *dir_for_V = NULL; /* Array: dir of each cache file.
326 * -1: file does not exist
327 * -2: file exists in top-level
328 * >=0: file exists in Dxxx
330 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
331 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
334 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
335 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
336 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
337 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
338 struct afs_cacheParams cparams; /* params passed to cache manager */
340 int PartSizeOverflow(char *path, int cs);
342 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
343 static void fork_rx_syscall_wait();
345 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
346 static void fork_rx_syscall();
348 static void fork_syscall();
350 #ifdef AFS_DARWIN_ENV
352 afsd_sleep_callback(void * refCon, io_service_t service,
353 natural_t messageType, void * messageArgument )
355 switch (messageType) {
356 case kIOMessageCanSystemSleep:
357 /* Idle sleep is about to kick in; can
358 prevent sleep by calling IOCancelPowerChange, otherwise
359 if we don't ack in 30s the system sleeps anyway */
362 IOAllowPowerChange(root_port, (long)messageArgument);
365 case kIOMessageSystemWillSleep:
366 /* The system WILL go to sleep. Ack or suffer delay */
368 IOAllowPowerChange(root_port, (long)messageArgument);
371 case kIOMessageSystemWillRestart:
372 /* The system WILL restart. Ack or suffer delay */
374 IOAllowPowerChange(root_port, (long)messageArgument);
377 case kIOMessageSystemWillPowerOn:
378 case kIOMessageSystemHasPoweredOn:
379 /* coming back from sleep */
381 IOAllowPowerChange(root_port, (long)messageArgument);
385 IOAllowPowerChange(root_port, (long)messageArgument);
391 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
393 /* parse multihomed address files */
394 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
400 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
401 AFSDIR_CLIENT_NETINFO_FILEPATH,
402 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
405 /* Note we're refreshing */
406 code = code | 0x40000000;
407 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
409 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
413 /* This function is called when the system's ip addresses may have changed. */
415 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
417 CFRunLoopTimerRef timer;
419 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
420 0.0, 0, 0, afsd_update_addresses, NULL);
421 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
422 kCFRunLoopDefaultMode);
427 afsd_event_cleanup(int signo) {
429 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
431 IODeregisterForSystemPower(&iterator);
432 IOServiceClose(root_port);
433 IONotificationPortDestroy(notify);
438 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
440 afsd_install_events(void)
442 SCDynamicStoreContext ctx = {0};
443 SCDynamicStoreRef store;
445 root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator);
448 CFRunLoopAddSource(CFRunLoopGetCurrent(),
449 IONotificationPortGetRunLoopSource(notify),
450 kCFRunLoopDefaultMode);
454 store = SCDynamicStoreCreate (NULL,
455 CFSTR ("AddIPAddressListChangeCallbackSCF"),
456 afsd_ipaddr_callback, &ctx);
461 /* Request IPV4 address change notification */
462 keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity
463 (NULL, kSCDynamicStoreDomainState,
464 kSCCompAnyRegex, kSCEntNetIPv4));
467 /* This should tell us when the hostname(s) change. do we care? */
468 keys[N] = SCDynamicStoreKeyCreateHostNames (NULL);
471 if (keys[0] != NULL) {
472 CFArrayRef pattern_array;
474 pattern_array = CFArrayCreate (NULL, keys, 1,
475 &kCFTypeArrayCallBacks);
477 if (pattern_array != NULL)
479 SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array);
480 source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0);
482 CFRelease (pattern_array);
492 if (source != NULL) {
493 CFRunLoopAddSource (CFRunLoopGetCurrent(),
494 source, kCFRunLoopDefaultMode);
497 signal(SIGTERM, afsd_event_cleanup);
503 /* ParseArgs is now obsolete, being handled by cmd */
505 /*------------------------------------------------------------------------------
509 * Open the file containing the description of the workstation's AFS cache
510 * and pull out its contents. The format of this file is as follows:
512 * cacheMountDir:cacheBaseDir:cacheBlocks
518 * 0 if everything went well,
522 * Nothing interesting.
526 *---------------------------------------------------------------------------*/
529 ParseCacheInfoFile(void)
531 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
532 FILE *cachefd; /*Descriptor for cache info file */
533 int parseResult; /*Result of our fscanf() */
534 afs_int32 tCacheBlocks;
535 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
538 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
540 cachefd = fopen(fullpn_CacheInfo, "r");
542 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
547 * Parse the contents of the cache info file. All chars up to the first
548 * colon are the AFS mount directory, all chars to the next colon are the
549 * full path name of the workstation cache directory and all remaining chars
550 * represent the number of blocks in the cache.
552 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
554 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
555 tCacheBaseDir, &tCacheBlocks);
558 * Regardless of how the parse went, we close the cache info file.
562 if (parseResult == EOF || parseResult < 3) {
563 printf("%s: Format error in cache info file!\n", rn);
564 if (parseResult == EOF)
565 printf("\tEOF encountered before any field parsed.\n");
567 printf("\t%d out of 3 fields successfully parsed.\n",
573 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
575 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
577 /* now copy in the fields not explicitly overridden by cmd args */
578 if (!sawCacheMountDir)
579 strcpy(afsd_cacheMountDir, tmd);
580 if (!sawCacheBaseDir)
581 strcpy(cacheBaseDir, tbd);
583 cacheBlocks = tCacheBlocks;
586 printf("%s: Cache info file successfully parsed:\n", rn);
588 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
589 tmd, tbd, tCacheBlocks);
591 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
592 return (PartSizeOverflow(tbd, cacheBlocks));
599 * All failures to open the partition are ignored. Also if the cache dir
600 * isn't a mounted partition it's also ignored since we can't guarantee
601 * what will be stored afterwards. Too many if's. This is now purely
602 * advisory. ODS with over 2G partition also gives warning message.
605 * 0 if everything went well,
609 PartSizeOverflow(char *path, int cs)
612 afs_int64 totalblks, mint;
613 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
614 struct statvfs statbuf;
616 if (statvfs(path, &statbuf) != 0) {
619 ("statvfs failed on %s; skip checking for adequate partition space\n",
623 totalblks = statbuf.f_blocks;
624 bsize = statbuf.f_frsize;
626 if (strcmp(statbuf.f_basetype, "jfs")) {
627 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
628 path, statbuf.f_basetype);
631 #endif /* AFS_AIX51_ENV */
633 #else /* AFS_HAVE_STATVFS */
634 struct statfs statbuf;
636 if (statfs(path, &statbuf) < 0) {
639 ("statfs failed on %s; skip checking for adequate partition space\n",
643 totalblks = statbuf.f_blocks;
644 bsize = statbuf.f_bsize;
647 return 0; /* success */
649 /* now free and totalblks are in fragment units, but we want them in 1K units */
651 totalblks *= (bsize / 1024);
653 totalblks /= (1024 / bsize);
656 mint = totalblks / 100 * 95;
659 ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n",
667 /*-----------------------------------------------------------------------------
671 * Given the final component of a filename expected to be a data cache file,
672 * return the integer corresponding to the file. Note: we reject names that
673 * are not a ``V'' followed by an integer. We also reject those names having
674 * the right format but lying outside the range [0..cacheFiles-1].
677 * fname : Char ptr to the filename to parse.
678 * max : integer for the highest number to accept
681 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
685 * Nothing interesting.
689 *---------------------------------------------------------------------------*/
692 doGetXFileNumber(char *fname, char filechar, int maxNum)
694 int computedVNumber; /*The computed file number we return */
695 int filenameLen; /*Number of chars in filename */
696 int currDigit; /*Current digit being processed */
699 * The filename must have at least two characters, the first of which must be a ``filechar''
700 * and the second of which cannot be a zero unless the file is exactly two chars long.
702 filenameLen = strlen(fname);
705 if (fname[0] != filechar)
707 if ((filenameLen > 2) && (fname[1] == '0'))
711 * Scan through the characters in the given filename, failing immediately if a non-digit
714 for (currDigit = 1; currDigit < filenameLen; currDigit++)
715 if (isdigit(fname[currDigit]) == 0)
719 * All relevant characters are digits. Pull out the decimal number they represent.
720 * Reject it if it's out of range, otherwise return it.
722 computedVNumber = atoi(++fname);
723 if (computedVNumber < cacheFiles)
724 return (computedVNumber);
730 GetVFileNumber(char *fname, int maxFile)
732 return doGetXFileNumber(fname, 'V', maxFile);
736 GetDDirNumber(char *fname, int maxDir)
738 return doGetXFileNumber(fname, 'D', maxDir);
742 /*-----------------------------------------------------------------------------
746 * Given a full pathname for a file we need to create for the workstation AFS
747 * cache, go ahead and create the file.
750 * fname : Full pathname of file to create.
751 * statp : A pointer to a stat buffer which, if NON-NULL, will be
755 * 0 iff the file was created,
759 * The given cache file has been found to be missing.
763 *---------------------------------------------------------------------------*/
766 CreateCacheSubDir(char *basename, int dirNum)
768 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
772 /* Build the new cache subdirectory */
773 sprintf(dir, "%s/D%d", basename, dirNum);
776 printf("%s: Creating cache subdir '%s'\n", rn, dir);
778 if ((ret = mkdir(dir, 0700)) != 0) {
779 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
785 /* Mark this directory as created */
786 cache_dir_list[dirNum] = 0;
788 /* And return success */
793 SetNoBackupAttr(char *fullpn)
795 #ifdef AFS_DARWIN80_ENV
798 ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem",
799 "com.apple.backupd", strlen("com.apple.backupd"), 0,
804 fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno));
811 MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile,
814 static char rn[] = "MoveCacheFile";
815 char from[1024], to[1024];
818 if (cache_dir_list[toDir] < 0
819 && (ret = CreateCacheSubDir(basename, toDir))) {
820 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
824 /* Build the from,to dir */
826 /* old-style location */
827 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
829 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
833 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
836 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
838 if ((ret = rename(from, to)) != 0) {
839 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
840 from, to, ret, errno);
845 /* Reset directory pointer; fix file counts */
846 dir_for_V[cacheFile] = toDir;
847 cache_dir_list[toDir]++;
848 if (fromDir < maxDir && fromDir >= 0)
849 cache_dir_list[fromDir]--;
855 CreateCacheFile(char *fname, struct stat *statp)
857 static char rn[] = "CreateCacheFile"; /*Routine name */
858 int cfd; /*File descriptor to AFS cache file */
859 int closeResult; /*Result of close() */
862 printf("%s: Creating cache file '%s'\n", rn, fname);
863 cfd = open(fname, createAndTrunc, ownerRWmode);
865 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
870 closeResult = fstat(cfd, statp);
873 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
878 closeResult = close(cfd);
881 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
890 CreateFileIfMissing(char *fullpn, int missing)
893 if (CreateCacheFile(fullpn, NULL))
894 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
899 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
901 if (unlink(fullpn_FileToDelete)) {
902 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
903 if (rmdir(fullpn_FileToDelete)) {
904 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
905 fullpn_FileToDelete, errno);
908 printf("%s: Can't unlink '%s', errno is %d\n", rn,
909 fullpn_FileToDelete, errno);
913 /*-----------------------------------------------------------------------------
917 * Sweep through the AFS cache directory, recording the inode number for
918 * each valid data cache file there. Also, delete any file that doesn't belong
919 * in the cache directory during this sweep, and remember which of the other
920 * residents of this directory were seen. After the sweep, we create any data
921 * cache files that were missing.
924 * vFilesFound : Set to the number of data cache files found.
927 * 0 if everything went well,
931 * This routine may be called several times. If the number of data cache files
932 * found is less than the global cacheFiles, then the caller will need to call it
933 * again to record the inodes of the missing zero-length data cache files created
934 * in the previous call.
937 * Fills up the global inode_for_V array, may create and/or delete files as
939 *---------------------------------------------------------------------------*/
943 doSweepAFSCache(int *vFilesFound,
944 char *directory, /* /path/to/cache/directory */
945 int dirNum, /* current directory number */
946 int maxDir) /* maximum directory number */
948 static char rn[] = "doSweepAFSCache"; /* Routine Name */
949 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
950 char *fileToDelete; /*Ptr to last component of above */
951 DIR *cdirp; /*Ptr to cache directory structure */
953 struct dirent64 *currp; /*Current directory entry */
955 struct dirent *currp; /*Current directory entry */
957 int vFileNum; /*Data cache file's associated number */
958 int thisDir; /* A directory number */
962 printf("%s: Opening cache directory '%s'\n", rn, directory);
964 if (chmod(directory, 0700)) { /* force it to be 700 */
965 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
969 cdirp = opendir(directory);
970 if (cdirp == (DIR *) 0) {
971 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
976 * Scan the directory entries, remembering data cache file inodes
977 * and the existance of other important residents. Recurse into
978 * the data subdirectories.
980 * Delete all files and directories that don't belong here.
982 sprintf(fullpn_FileToDelete, "%s/", directory);
983 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
986 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
988 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
992 printf("%s: Current directory entry:\n", rn);
993 #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV)
994 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino,
995 currp->d_reclen, currp->d_name);
996 #elif defined(AFS_DFBSD_ENV)
997 printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name);
999 printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino,
1000 currp->d_reclen, currp->d_name);
1005 * If dirNum < 0, we are a top-level cache directory and should
1006 * only contain sub-directories and other sundry files. Therefore,
1007 * V-files are valid only if dirNum >= 0, and Directories are only
1008 * valid if dirNum < 0.
1011 if (*(currp->d_name) == 'V'
1012 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1015 * Found a valid data cache filename. Remember this
1016 * file's inode, directory, and bump the number of files found
1017 * total and in this directory.
1019 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1020 inode_for_V[vFileNum] = currp->d_ino;
1022 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1025 /* If we're in a real subdir, mark this file to be moved
1026 * if we've already got too many files in this directory
1028 assert(dirNum >= 0);
1029 cache_dir_list[dirNum]++; /* keep directory's file count */
1030 if (cache_dir_list[dirNum] > nFilesPerDir) {
1031 /* Too many files -- add to filelist */
1032 struct afsd_file_list *tmp = (struct afsd_file_list *)
1033 malloc(sizeof(*tmp));
1036 ("%s: MALLOC FAILED allocating file_list entry\n",
1039 tmp->fileNum = vFileNum;
1040 tmp->next = cache_dir_filelist[dirNum];
1041 cache_dir_filelist[dirNum] = tmp;
1046 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1047 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1049 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1050 /* Found a valid cachefile sub-Directory. Remember this number
1051 * and recurse into it. Note that subdirs cannot have subdirs.
1054 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1056 /* This directory is going away, but figure out if there
1057 * are any cachefiles in here that should be saved by
1058 * moving them to other cache directories. This directory
1059 * will be removed later.
1064 /* Save the highest directory number we've seen */
1065 if (vFileNum > highDir)
1068 /* If this directory is staying, be sure to mark it as 'found' */
1070 cache_dir_list[vFileNum] = 0;
1072 /* Print the dirname for recursion */
1073 sprintf(fileToDelete, "%s", currp->d_name);
1075 /* Note: vFileNum is the directory number */
1077 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1078 (retval == 1 ? 0 : -1));
1080 printf("%s: Recursive sweep failed on directory %s\n", rn,
1084 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1086 * Found the file holding the dcache entries.
1088 missing_DCacheFile = 0;
1089 SetNoBackupAttr(fullpn_DCacheFile);
1090 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1092 * Found the file holding the volume info.
1094 missing_VolInfoFile = 0;
1095 SetNoBackupAttr(fullpn_VolInfoFile);
1096 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1098 * Found the file holding the cell info.
1100 missing_CellInfoFile = 0;
1101 SetNoBackupAttr(fullpn_CellInfoFile);
1102 } else if ((strcmp(currp->d_name, ".") == 0)
1103 || (strcmp(currp->d_name, "..") == 0) ||
1104 #ifdef AFS_DECOSF_ENV
1105 /* these are magic AdvFS files */
1106 (strcmp(currp->d_name, ".tags") == 0)
1107 || (strcmp(currp->d_name, "quota.user") == 0)
1108 || (strcmp(currp->d_name, "quota.group") == 0) ||
1110 #ifdef AFS_LINUX22_ENV
1111 /* this is the ext3 journal file */
1112 (strcmp(currp->d_name, ".journal") == 0) ||
1114 (strcmp(currp->d_name, "lost+found") == 0)) {
1116 * Don't do anything - this file is legit, and is to be left alone.
1120 * This file/directory doesn't belong in the cache. Nuke it.
1122 sprintf(fileToDelete, "%s", currp->d_name);
1124 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1125 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1132 * Create all the cache files that are missing.
1134 CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile);
1135 CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile);
1136 CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile);
1138 /* ADJUST CACHE FILES */
1140 /* First, let's walk through the list of files and figure out
1141 * if there are any leftover files in extra directories or
1142 * missing files. Move the former and create the latter in
1143 * subdirs with extra space.
1146 thisDir = 0; /* Keep track of which subdir has space */
1148 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
1149 if (dir_for_V[vFileNum] == -1) {
1150 /* This file does not exist. Create it in the first
1151 * subdir that still has extra space.
1153 while (thisDir < maxDir
1154 && cache_dir_list[thisDir] >= nFilesPerDir)
1156 if (thisDir >= maxDir)
1157 printf("%s: can't find directory to create V%d\n", rn,
1161 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1162 assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0);
1164 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
1166 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1167 if (cache_dir_list[thisDir] < 0
1168 && CreateCacheSubDir(directory, thisDir))
1169 printf("%s: Can't create directory for '%s'\n", rn,
1171 if (CreateCacheFile(fullpn_VFile, &statb))
1172 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1174 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1175 inode_for_V[vFileNum] = statb.st_ino;
1177 dir_for_V[vFileNum] = thisDir;
1178 cache_dir_list[thisDir]++;
1181 SetNoBackupAttr(fullpn_VFile);
1184 } else if (dir_for_V[vFileNum] >= maxDir
1185 || dir_for_V[vFileNum] == -2) {
1186 /* This file needs to move; move it to the first subdir
1187 * that has extra space. (-2 means it's in the toplevel)
1189 while (thisDir < maxDir
1190 && cache_dir_list[thisDir] >= nFilesPerDir)
1192 if (thisDir >= maxDir)
1193 printf("%s: can't find directory to move V%d\n", rn,
1197 (directory, dir_for_V[vFileNum], thisDir, vFileNum,
1199 /* Cannot move. Ignore this file??? */
1206 /* At this point, we've moved all of the valid cache files
1207 * into the valid subdirs, and created all the extra
1208 * cachefiles we need to create. Next, rebalance any subdirs
1209 * with too many cache files into the directories with not
1210 * enough cache files. Note that thisDir currently sits at
1211 * the lowest subdir that _may_ have room.
1214 for (dirNum = 0; dirNum < maxDir; dirNum++) {
1215 struct afsd_file_list *thisFile;
1217 for (thisFile = cache_dir_filelist[dirNum];
1218 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
1219 thisFile = thisFile->next) {
1220 while (thisDir < maxDir
1221 && cache_dir_list[thisDir] >= nFilesPerDir)
1223 if (thisDir >= maxDir)
1224 printf("%s: can't find directory to move V%d\n", rn,
1228 (directory, dirNum, thisDir, thisFile->fileNum,
1230 /* Cannot move. Ignore this file??? */
1234 } /* for each file to move */
1235 } /* for each directory */
1237 /* Remove any directories >= maxDir -- they should be empty */
1238 for (; highDir >= maxDir; highDir--) {
1239 sprintf(fileToDelete, "D%d", highDir);
1240 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1246 * Close the directory, return success.
1249 printf("%s: Closing cache directory.\n", rn);
1255 CheckCacheBaseDir(char *dir)
1257 struct stat statbuf;
1260 return "cache base dir not specified";
1262 if (stat(dir, &statbuf) != 0) {
1263 return "unable to stat cache base directory";
1266 /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */
1268 #ifdef AFS_LINUX24_ENV
1271 struct statfs statfsbuf;
1273 res = statfs(dir, &statfsbuf);
1275 return "unable to statfs cache base directory";
1277 #if !defined(LINUX_USE_FH)
1278 if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */
1279 return "cannot use reiserfs as cache partition";
1280 } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */
1281 return "cannot use xfs as cache partition";
1282 } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */
1283 return "cannot use tmpfs as cache partition";
1284 } else if (statfsbuf.f_type != 0xEF53) {
1285 return "must use ext2 or ext3 for cache partition";
1294 struct statfs statfsbuf;
1297 res = statfs(dir, &statfsbuf);
1299 return "unable to statfs cache base directory";
1302 if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) {
1303 return "unable to determine filesystem type for cache base dir";
1306 if (strcmp(name, "hfs")) {
1307 return "can only use hfs filesystem for cache partition on hpux";
1316 struct stat statmnt, statci;
1318 if ((stat(dir, &statci) == 0)
1319 && ((vfstab = fopen(MNTTAB, "r")) != NULL)) {
1320 while (getmntent(vfstab, &mnt) == 0) {
1321 if (strcmp(dir, mnt.mnt_mountp) != 0) {
1325 if (cp = hasmntopt(&mnt, "dev="))
1327 (int)strtol(cp + strlen("dev="), (char **)NULL,
1330 if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0))
1331 rdev = statmnt.st_dev;
1333 if ((rdev == statci.st_dev)
1334 && (hasmntopt(&mnt, "logging") != NULL)) {
1338 "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n";
1352 SweepAFSCache(int *vFilesFound)
1354 static char rn[] = "SweepAFSCache"; /*Routine name */
1355 int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir;
1360 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1362 printf("%s: Memory Cache, no cache sweep done\n", rn);
1366 if (cache_dir_list == NULL) {
1367 cache_dir_list = (int *)malloc(maxDir * sizeof(*cache_dir_list));
1368 if (cache_dir_list == NULL) {
1369 printf("%s: Malloc Failed!\n", rn);
1372 for (i = 0; i < maxDir; i++)
1373 cache_dir_list[i] = -1; /* Does not exist */
1376 if (cache_dir_filelist == NULL) {
1377 cache_dir_filelist = (struct afsd_file_list **)
1378 malloc(maxDir * sizeof(*cache_dir_filelist));
1379 if (cache_dir_filelist == NULL) {
1380 printf("%s: Malloc Failed!\n", rn);
1383 memset(cache_dir_filelist, 0, maxDir * sizeof(*cache_dir_filelist));
1386 if (dir_for_V == NULL) {
1387 dir_for_V = (int *)malloc(cacheFiles * sizeof(*dir_for_V));
1388 if (dir_for_V == NULL) {
1389 printf("%s: Malloc Failed!\n", rn);
1392 for (i = 0; i < cacheFiles; i++)
1393 dir_for_V[i] = -1; /* Does not exist */
1396 /* Note, setting dirNum to -2 here will cause cachefiles found in
1397 * the toplevel directory to be marked in directory "-2". This
1398 * allows us to differentiate between 'file not seen' (-1) and
1399 * 'file seen in top-level' (-2). Then when we try to move the
1400 * file into a subdirectory, we know it's in the top-level instead
1401 * of some other cache subdir.
1403 return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir);
1407 ConfigCell(struct afsconf_cell *aci, void *arock, struct afsconf_dir *adir)
1411 afs_int32 cellFlags = 0;
1412 afs_int32 hosts[MAXHOSTSPERCELL];
1414 /* figure out if this is the home cell */
1415 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1417 cellFlags = 2; /* not home, suid is forbidden */
1419 /* build address list */
1420 for (i = 0; i < MAXHOSTSPERCELL; i++)
1421 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1423 if (aci->linkedCell)
1424 cellFlags |= 4; /* Flag that linkedCell arg exists,
1425 * for upwards compatibility */
1427 /* configure one cell */
1428 code = afsd_call_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */
1429 aci->name, /* cell name */
1430 cellFlags, /* is this the home cell? */
1431 aci->linkedCell); /* Linked cell, if any */
1433 printf("Adding cell '%s': error %d\n", aci->name, code);
1438 ConfigCellAlias(struct afsconf_cellalias *aca,
1439 void *arock, struct afsconf_dir *adir)
1441 /* push the alias into the kernel */
1442 afsd_call_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1447 AfsdbLookupHandler(void)
1449 afs_int32 kernelMsg[64];
1450 char acellName[128];
1452 struct afsconf_cell acellInfo;
1457 acellName[0] = '\0';
1459 #ifdef AFS_DARWIN_ENV
1460 /* Fork the event handler also. */
1463 afsd_install_events();
1465 } else if (code != -1) {
1470 /* On some platforms you only get 4 args to an AFS call */
1471 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1473 afsd_call_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1474 if (code) { /* Something is wrong? */
1479 if (*acellName == 1) /* Shutting down */
1482 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1487 kernelMsg[0] = acellInfo.numServers;
1488 if (acellInfo.timeout)
1489 kernelMsg[1] = acellInfo.timeout - time(0);
1492 for (i = 0; i < acellInfo.numServers; i++)
1493 kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1494 strncpy(acellName, acellInfo.name, sizeof(acellName));
1495 acellName[sizeof(acellName) - 1] = '\0';
1498 #ifdef AFS_DARWIN_ENV
1499 kill(event_pid, SIGTERM);
1503 #ifdef AFS_DARWIN_ENV
1508 struct afs_uspc_param *uspc;
1512 uspc = (struct afs_uspc_param *)malloc(sizeof(struct afs_uspc_param));
1513 memset(uspc, 0, sizeof(struct afs_uspc_param));
1514 memset(srcName, 0, sizeof(srcName));
1515 memset(dstName, 0, sizeof(dstName));
1517 /* brscount starts at 0 */
1523 char srcpath[BUFSIZ];
1524 char dstpath[BUFSIZ];
1526 /* pushing in a buffer this large */
1529 code = afsd_call_syscall(AFSOP_BKG_HANDLER, uspc, srcName, dstName);
1530 if (code) { /* Something is wrong? */
1531 if (code == -2) /* shutting down */
1539 switch (uspc->reqtype) {
1541 snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1542 uspc->req.umv.sCell, uspc->req.umv.sVolume,
1543 uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName);
1544 snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1545 uspc->req.umv.dCell, uspc->req.umv.dVolume,
1546 uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName);
1547 if ((child = fork()) == 0) {
1548 /* first child does cp; second, rm. mv would re-enter. */
1550 switch (uspc->req.umv.idtype) {
1552 if (setuid(uspc->req.umv.id) != 0) {
1558 break; /* notreached */
1560 execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath,
1561 dstpath, (char *) NULL);
1563 if (child == (pid_t) -1) {
1568 if (waitpid(child, &status, 0) == -1)
1570 else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) {
1571 if ((child = fork()) == 0) {
1572 switch (uspc->req.umv.idtype) {
1574 if (setuid(uspc->req.umv.id) != 0) {
1580 break; /* notreached */
1582 execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--",
1583 srcpath, (char *) NULL);
1585 if (child == (pid_t) -1) {
1589 if (waitpid(child, &status, 0) == -1)
1591 else if (WIFEXITED(status) != 0) {
1592 /* rm exit status */
1593 uspc->retval = WEXITSTATUS(status);
1595 /* rm signal status */
1596 uspc->retval = -(WTERMSIG(status));
1599 /* error from cp: exit or signal status */
1600 uspc->retval = (WIFEXITED(status) != 0) ?
1601 WEXITSTATUS(status) : -(WTERMSIG(status));
1603 memset(srcName, 0, sizeof(srcName));
1604 memset(dstName, 0, sizeof(dstName));
1608 /* unknown req type */
1617 afsdb_thread(void *rock)
1619 /* Since the AFSDB lookup handler runs as a user process,
1620 * need to drop the controlling TTY, etc.
1622 if (afsd_daemon(0, 0) == -1) {
1623 printf("Error starting AFSDB lookup handler: %s\n",
1627 AfsdbLookupHandler();
1632 daemon_thread(void *rock)
1634 #ifdef AFS_DARWIN80_ENV
1635 /* Since the background daemon runs as a user process,
1636 * need to drop the controlling TTY, etc.
1638 if (afsd_daemon(0, 0) == -1) {
1639 printf("Error starting background daemon: %s\n",
1644 #elif defined(AFS_AIX32_ENV)
1645 afsd_call_syscall(AFSOP_START_BKG, 0);
1647 afsd_call_syscall(AFSOP_START_BKG);
1654 rmtsysd_thread(void *rock)
1659 #endif /* !UKERNEL */
1662 mainproc(struct cmd_syndesc *as, void *arock)
1664 afs_int32 code; /*Result of fork() */
1668 #ifdef AFS_SGI65_ENV
1669 struct sched_param sp;
1672 #ifdef AFS_SGI_VNODE_GLUE
1673 if (afs_init_kernel_config(-1) < 0) {
1674 printf("Can't determine NUMA configuration, not starting AFS.\n");
1679 /* call atoi on the appropriate parsed results */
1680 if (as->parms[0].items) {
1682 cacheBlocks = atoi(as->parms[0].items->data);
1685 if (as->parms[1].items) {
1687 cacheFiles = atoi(as->parms[1].items->data);
1688 filesSet = 1; /* set when spec'd on cmd line */
1690 if (as->parms[2].items) {
1692 strcpy(rootVolume, as->parms[2].items->data);
1695 if (as->parms[3].items) {
1697 cacheStatEntries = atoi(as->parms[3].items->data);
1698 sawCacheStatEntries = 1;
1700 if (as->parms[4].items) {
1702 cacheBaseDir[0] = '\0';
1703 sawCacheBaseDir = 1;
1704 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1706 if (as->parms[5].items) {
1708 strcpy(cacheBaseDir, as->parms[5].items->data);
1709 sawCacheBaseDir = 1;
1711 if (as->parms[6].items) {
1713 strcpy(afsd_cacheMountDir, as->parms[6].items->data);
1714 sawCacheMountDir = 1;
1716 if (as->parms[7].items) {
1718 nDaemons = atoi(as->parms[7].items->data);
1720 if (as->parms[8].items) {
1722 cacheSetTime = FALSE;
1724 if (as->parms[9].items) {
1728 if (as->parms[10].items) {
1732 printf("-rmtsys not supported for UKERNEL\n");
1736 if (as->parms[11].items) {
1741 if (as->parms[12].items) {
1743 chunkSize = atoi(as->parms[12].items->data);
1744 if (chunkSize < 0 || chunkSize > 30) {
1746 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1750 if (as->parms[13].items) {
1752 dCacheSize = atoi(as->parms[13].items->data);
1755 if (as->parms[14].items) {
1757 vCacheSize = atoi(as->parms[14].items->data);
1759 if (as->parms[15].items) {
1761 #ifndef AFS_AIX32_ENV
1763 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1765 nBiods = atoi(as->parms[15].items->data);
1769 if (as->parms[16].items) {
1771 preallocs = atoi(as->parms[16].items->data);
1773 strcpy(confDir, AFSDIR_CLIENT_ETC_DIRPATH);
1774 if (as->parms[17].items) {
1776 strcpy(confDir, as->parms[17].items->data);
1778 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1779 if (as->parms[18].items) {
1781 printf("afsd: Ignoring obsolete -logfile flag\n");
1783 if (as->parms[19].items) {
1785 afsd_CloseSynch = 1;
1787 if (as->parms[20].items) {
1791 * Cold shutdown is the default
1793 printf("afsd: Shutting down all afs processes and afs state\n");
1794 code = afsd_call_syscall(AFSOP_SHUTDOWN, 1);
1796 printf("afsd: AFS still mounted; Not shutting down\n");
1801 if (as->parms[21].items) {
1802 /* -enable_peer_stats */
1803 enable_peer_stats = 1;
1805 if (as->parms[22].items) {
1806 /* -enable_process_stats */
1807 enable_process_stats = 1;
1809 if (as->parms[23].items) {
1810 /* -mem_alloc_sleep */
1811 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1813 if (as->parms[24].items) {
1817 if (as->parms[25].items) {
1818 /* -files_per_subdir */
1819 int res = atoi(as->parms[25].items->data);
1820 if (res < 10 || res > (1 << 30)) {
1822 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1823 as->parms[25].items->data);
1828 if (as->parms[26].items) {
1832 if (as->parms[27].items) {
1834 enable_fakestat = 2;
1836 if (as->parms[28].items) {
1838 enable_fakestat = 1;
1840 if (as->parms[29].items) {
1844 if (as->parms[30].items) {
1846 enable_backuptree = 1;
1848 if (as->parms[31].items) {
1852 if (as->parms[32].items) {
1854 cacheSetTime = TRUE;
1857 /* set rx_extraPackets */
1858 if (as->parms[33].items) {
1860 int rxpck = atoi(as->parms[33].items->data);
1861 printf("afsd: set rxpck = %d\n", rxpck);
1862 code = afsd_call_syscall(AFSOP_SET_RXPCK, rxpck);
1864 printf("afsd: failed to set rxpck\n");
1868 if (as->parms[34].items) {
1870 if (!as->parms[34].items->data ||
1871 ((c = strchr(as->parms[34].items->data, '/')) == NULL))
1873 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1875 ropct = atoi((char *)c + 1);
1877 rwpct = atoi((char *)as->parms[30].items->data);
1878 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1880 enable_splitcache = 1;
1884 if (as->parms[35].items) {
1885 #ifdef AFS_MAXVCOUNT_ENV
1886 /* -disable-dynamic-vcaches */
1887 afsd_dynamic_vcaches = FALSE;
1889 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1893 #ifdef AFS_MAXVCOUNT_ENV
1895 /* -dynamic-vcaches */
1896 afsd_dynamic_vcaches = TRUE;
1900 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1904 if (as->parms[36].items) {
1906 rxmaxmtu = atoi(as->parms[36].items->data);
1914 static char rn[] = "afsd"; /*Name of this routine */
1915 struct afsconf_dir *cdir; /* config dir */
1916 int lookupResult; /*Result of GetLocalCellName() */
1918 afs_int32 code; /*Result of fork() */
1919 char *fsTypeMsg = NULL;
1920 int cacheIteration; /*How many times through cache verification */
1921 int vFilesFound; /*How many data cache files were found in sweep */
1922 int currVFile; /*Current AFS cache file number passed in */
1925 * Pull out all the configuration info for the workstation's AFS cache and
1926 * the cellular community we're willing to let our users see.
1928 cdir = afsconf_Open(confDir);
1930 printf("afsd: some file missing or bad in %s\n", confDir);
1935 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1937 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1941 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1944 /* parse cacheinfo file if this is a diskcache */
1945 if (ParseCacheInfoFile()) {
1949 /* do some random computations in memcache case to get things to work
1950 * reasonably no matter which parameters you set.
1952 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1953 /* memory cache: size described either as blocks or dcache entries, but
1957 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1959 if (sawDCacheSize) {
1960 if (chunkSize == 0) {
1961 chunkSize = 13; /* 8k default chunksize for memcache */
1963 if (sawCacheBlocks) {
1965 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1969 /* compute the cache size based on # of chunks times the chunk size */
1970 i = (1 << chunkSize); /* bytes per chunk */
1971 cacheBlocks = i * dCacheSize;
1972 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1974 if (chunkSize == 0) {
1975 /* Try to autotune the memcache chunksize based on size
1976 * of memcache. This is done on the assumption that approx
1977 * 1024 chunks is suitable, it's a balance between enough
1978 * chunks to be useful and ramping up nicely when using larger
1979 * memcache to improve bulk read/write performance
1982 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1985 /* compute the dcache size from overall cache size and chunk size */
1986 if (chunkSize > 10) {
1987 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1988 } else if (chunkSize < 10) {
1989 dCacheSize = (cacheBlocks << (10 - chunkSize));
1991 dCacheSize = cacheBlocks;
1993 /* don't have to set sawDCacheSize here since it isn't overwritten
1994 * by ParseCacheInfoFile.
1998 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2000 /* kernel computes # of dcache entries as min of cacheFiles and
2001 * dCacheSize, so we now make them equal.
2003 cacheFiles = dCacheSize;
2006 * Compute the number of cache files based on cache size,
2007 * but only if -files isn't given on the command line.
2008 * Don't let # files be so small as to prevent full utilization
2009 * of the cache unless user has explicitly asked for it.
2011 if (chunkSize == 0) {
2012 /* Set chunksize to 256kB - 1MB depending on cache size */
2013 if (cacheBlocks < 500000) {
2015 } else if (cacheBlocks < 1000000) {
2022 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2024 cacheFiles = max(cacheFiles, 1000);
2026 /* Always allow more files than chunks. Presume average V-file
2027 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2028 * have a grad student write a paper). i is KILOBYTES.
2030 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2031 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2033 /* never permit more files than blocks, while leaving space for
2034 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2035 * CacheItems is 50 Bytes / file (== 1K/20)
2037 #define CACHEITMSZ (cacheFiles / 20)
2038 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2039 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2040 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2042 /* Sanity check: If the obtained number of disk cache files
2043 * is larger than the number of available (4k) disk blocks, we're
2044 * doing something wrong. Fail hard so we can fix the bug instead
2045 * of silently hiding it like before */
2047 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2049 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2050 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2053 if (cacheFiles < 100)
2054 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2058 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2061 /* This actually needs to
2063 2) not second-guess when a chunksize comes from the command line
2064 3) be less, um, small. 2^2??
2066 /* Sanity check chunkSize */
2067 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2068 chunkSize = min(chunkSize, i);
2069 chunkSize = max(chunkSize, 2);
2071 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2074 if (!sawDCacheSize) {
2075 dCacheSize = cacheFiles / 2;
2076 if (dCacheSize > 10000) {
2079 if (dCacheSize < 2000) {
2083 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2086 if (!sawCacheStatEntries) {
2087 if (chunkSize <= 13) {
2088 cacheStatEntries = dCacheSize / 4;
2089 } else if (chunkSize >= 16) {
2090 cacheStatEntries = dCacheSize * 1.5;
2092 cacheStatEntries = dCacheSize;
2095 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2099 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
2101 * Create and zero the inode table for the desired cache files.
2103 inode_for_V = (AFSD_INO_T *) malloc(cacheFiles * sizeof(AFSD_INO_T));
2104 if (inode_for_V == (AFSD_INO_T *) 0) {
2106 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2110 memset(inode_for_V, '\0', (cacheFiles * sizeof(AFSD_INO_T)));
2112 printf("%s: %d inode_for_V entries at 0x%x, %lu bytes\n", rn,
2113 cacheFiles, inode_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
2117 * Set up all the pathnames we'll need for later.
2119 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2120 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2121 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2122 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2123 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2125 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)
2126 && (fsTypeMsg = CheckCacheBaseDir(cacheBaseDir))) {
2128 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2130 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2136 * Set up all the kernel processes needed for AFS.
2139 setpgrp(getpid(), 0);
2143 * Set the primary cell name.
2145 afsd_call_syscall(AFSOP_SET_THISCELL, LclCellName);
2147 /* Initialize RX daemons and services */
2149 /* initialize the rx random number generator from user space */
2151 /* parse multihomed address files */
2152 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2156 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2157 AFSDIR_CLIENT_NETINFO_FILEPATH,
2158 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2161 code = code | 0x80000000;
2162 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2164 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2168 /* Set realtime priority for most threads to same as for biod's. */
2169 afsd_set_afsd_rtpri();
2171 #ifdef AFS_SGI53_ENV
2172 #ifdef AFS_SGI61_ENV
2174 #else /* AFS_SGI61_ENV */
2175 code = get_nfsstaticaddr();
2177 afsd_call_syscall(AFSOP_NFSSTATICADDR, code);
2178 #endif /* AFS_SGI61_ENV */
2179 #endif /* AFS_SGI_53_ENV */
2181 /* Start listener, then callback listener. Lastly, start rx event daemon.
2182 * Change in ordering is so that Linux port has socket fd in listener
2184 * preallocs are passed for both listener and callback server. Only
2185 * the one which actually does the initialization uses them though.
2187 if (preallocs < cacheStatEntries + 50)
2188 preallocs = cacheStatEntries + 50;
2189 #ifdef RXK_LISTENER_ENV
2191 printf("%s: Forking rx listener daemon.\n", rn);
2192 # ifdef AFS_SUN510_ENV
2193 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2194 enable_peer_stats, enable_process_stats);
2195 # else /* !AFS_SUN510_ENV */
2196 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2197 enable_process_stats);
2198 # endif /* !AFS_SUN510_ENV */
2201 printf("%s: Forking rx callback listener.\n", rn);
2202 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs);
2203 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
2205 printf("%s: Forking rxevent daemon.\n", rn);
2206 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2211 printf("%s: Forking AFSDB lookup handler.\n", rn);
2212 afsd_fork(0, afsdb_thread, NULL);
2215 code = afsd_call_syscall(AFSOP_BASIC_INIT, 1);
2217 printf("%s: Error %d in basic initialization.\n", rn, code);
2222 * Tell the kernel some basic information about the workstation's cache.
2226 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2227 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2229 memset(&cparams, '\0', sizeof(cparams));
2230 cparams.cacheScaches = cacheStatEntries;
2231 cparams.cacheFiles = cacheFiles;
2232 cparams.cacheBlocks = cacheBlocks;
2233 cparams.cacheDcaches = dCacheSize;
2234 cparams.cacheVolumes = vCacheSize;
2235 cparams.chunkSize = chunkSize;
2236 cparams.setTimeFlag = cacheSetTime;
2237 cparams.memCacheFlag = cacheFlags;
2238 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2239 afsd_call_syscall(AFSOP_CACHEINIT, &cparams);
2241 /* do it before we init the cache inodes */
2242 if (enable_splitcache) {
2243 afsd_call_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2244 afsd_call_syscall(AFSOP_BUCKETPCT, 2, ropct);
2247 if (afsd_CloseSynch)
2248 afsd_call_syscall(AFSOP_CLOSEWAIT);
2251 * Sweep the workstation AFS cache directory, remembering the inodes of
2252 * valid files and deleting extraneous files. Keep sweeping until we
2253 * have the right number of data cache files or we've swept too many
2256 * This also creates files in the cache directory like VolumeItems and
2257 * CellItems, and thus must be ran before those are sent to the kernel.
2260 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2262 /* Memory-cache based system doesn't need any of this */
2263 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2266 if (SweepAFSCache(&vFilesFound)) {
2267 printf("%s: Error on sweep %d of workstation AFS cache \
2268 directory.\n", rn, cacheIteration);
2273 ("%s: %d out of %d data cache files found in sweep %d.\n",
2274 rn, vFilesFound, cacheFiles, cacheIteration);
2275 } while ((vFilesFound < cacheFiles)
2276 && (cacheIteration < MAX_CACHE_LOOPS));
2277 } else if (afsd_verbose)
2278 printf("%s: Using memory cache, not swept\n", rn);
2281 * Pass the kernel the name of the workstation cache file holding the
2285 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2287 /* once again, meaningless for a memory-based cache. */
2288 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2289 afsd_call_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2292 * Pass the kernel the name of the workstation cache file holding the
2296 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2297 fullpn_CellInfoFile);
2298 afsd_call_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2302 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2303 code = afsd_call_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2305 printf("%s: Error seting rxmaxmtu\n", rn);
2308 if (enable_dynroot) {
2310 printf("%s: Enabling dynroot support in kernel.\n", rn);
2311 code = afsd_call_syscall(AFSOP_SET_DYNROOT, 1);
2313 printf("%s: Error enabling dynroot support.\n", rn);
2316 if (enable_fakestat) {
2318 printf("%s: Enabling fakestat support in kernel.\n", rn);
2319 code = afsd_call_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2321 printf("%s: Error enabling fakestat support.\n", rn);
2324 if (enable_backuptree) {
2326 printf("%s: Enabling backup tree support in kernel.\n", rn);
2327 code = afsd_call_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2329 printf("%s: Error enabling backup tree support.\n", rn);
2333 * Tell the kernel about each cell in the configuration.
2335 afsconf_CellApply(cdir, ConfigCell, NULL);
2336 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2338 /* Initialize AFS daemon threads. */
2340 printf("%s: Forking AFS daemon.\n", rn);
2341 fork_syscall(rn, AFSOP_START_AFS);
2344 printf("%s: Forking Check Server Daemon.\n", rn);
2345 fork_syscall(rn, AFSOP_START_CS);
2348 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2349 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2350 /* Add one because for sgi we always "steal" the first daemon for a
2351 * different task if we only have a 4K stack.
2355 for (i = 0; i < nDaemons; i++) {
2356 afsd_fork(0, daemon_thread, NULL);
2358 #ifdef AFS_AIX32_ENV
2360 nBiods = nDaemons * 2;
2363 for (i = 0; i < nBiods; i++) {
2364 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2369 * If the root volume has been explicitly set, tell the kernel.
2373 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2375 afsd_call_syscall(AFSOP_ROOTVOLUME, rootVolume);
2379 * Pass the kernel the name of the workstation cache file holding the
2380 * volume information.
2383 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2384 fullpn_VolInfoFile);
2385 /* once again, meaningless for a memory-based cache. */
2386 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2387 afsd_call_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2390 * Give the kernel the names of the AFS files cached on the workstation's
2395 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2396 rn, cacheFiles, cacheBaseDir);
2397 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2398 /* ... and again ... */
2399 int nocachefile = 0;
2400 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2402 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2403 code = afsd_call_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2405 if (currVFile == 0) {
2408 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2409 rn, cacheFiles, cacheBaseDir);
2413 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2420 /* fall through to setup-by-inode */
2422 #ifdef AFS_SGI62_ENV
2423 afsd_call_syscall(AFSOP_CACHEINODE,
2424 (afs_uint32) (inode_for_V[currVFile] >> 32),
2425 (afs_uint32) (inode_for_V[currVFile] & 0xffffffff));
2426 #elif !(defined(LINUX_USE_FH) || defined(AFS_CACHE_VNODE_PATH))
2427 afsd_call_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2430 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2438 * All the necessary info has been passed into the kernel to run an AFS
2439 * system. Give the kernel our go-ahead.
2442 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2444 afsd_call_syscall(AFSOP_GO, cacheSetTime);
2447 * At this point, we have finished passing the kernel all the info
2448 * it needs to set up the AFS. Mount the AFS root.
2450 printf("%s: All AFS daemons started.\n", rn);
2453 printf("%s: Forking trunc-cache daemon.\n", rn);
2454 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2456 if (!enable_nomount) {
2457 afsd_mount_afs(rn, afsd_cacheMountDir);
2463 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2464 afsd_fork(0, rmtsysd_thread, NULL);
2466 #endif /* !UKERNEL */
2468 * Exit successfully.
2473 #include "AFS_component_version_number.c"
2478 struct cmd_syndesc *ts;
2480 ts = cmd_CreateSyntax(NULL, mainproc, NULL, "start AFS");
2483 cmd_AddParm(ts, "-blocks", CMD_SINGLE, CMD_OPTIONAL,
2484 "1024 byte blocks in cache");
2485 cmd_AddParm(ts, "-files", CMD_SINGLE, CMD_OPTIONAL, "files in cache");
2486 cmd_AddParm(ts, "-rootvol", CMD_SINGLE, CMD_OPTIONAL,
2487 "name of AFS root volume");
2488 cmd_AddParm(ts, "-stat", CMD_SINGLE, CMD_OPTIONAL,
2489 "number of stat entries");
2490 cmd_AddParm(ts, "-memcache", CMD_FLAG, CMD_OPTIONAL, "run diskless");
2491 cmd_AddParm(ts, "-cachedir", CMD_SINGLE, CMD_OPTIONAL, "cache directory");
2492 cmd_AddParm(ts, "-mountdir", CMD_SINGLE, CMD_OPTIONAL, "mount location");
2493 cmd_AddParm(ts, "-daemons", CMD_SINGLE, CMD_OPTIONAL,
2494 "number of daemons to use");
2495 cmd_AddParm(ts, "-nosettime", CMD_FLAG, CMD_OPTIONAL,
2496 "don't set the time");
2497 cmd_AddParm(ts, "-verbose", CMD_FLAG, CMD_OPTIONAL,
2498 "display lots of information");
2499 cmd_AddParm(ts, "-rmtsys", CMD_FLAG, CMD_OPTIONAL,
2500 "start NFS rmtsysd program");
2503 cmd_AddParm(ts, "-debug", CMD_FLAG, CMD_OPTIONAL, "display debug info");
2504 cmd_AddParm(ts, "-chunksize", CMD_SINGLE, CMD_OPTIONAL,
2505 "log(2) of chunk size");
2506 cmd_AddParm(ts, "-dcache", CMD_SINGLE, CMD_OPTIONAL,
2507 "number of dcache entries");
2508 cmd_AddParm(ts, "-volumes", CMD_SINGLE, CMD_OPTIONAL,
2509 "number of volume entries");
2510 cmd_AddParm(ts, "-biods", CMD_SINGLE, CMD_OPTIONAL,
2511 "number of bkg I/O daemons (aix vm)");
2512 cmd_AddParm(ts, "-prealloc", CMD_SINGLE, CMD_OPTIONAL,
2513 "number of 'small' preallocated blocks");
2514 cmd_AddParm(ts, "-confdir", CMD_SINGLE, CMD_OPTIONAL,
2515 "configuration directory");
2516 cmd_AddParm(ts, "-logfile", CMD_SINGLE, CMD_OPTIONAL,
2517 "Place to keep the CM log");
2518 cmd_AddParm(ts, "-waitclose", CMD_FLAG, CMD_OPTIONAL,
2519 "make close calls synchronous");
2520 cmd_AddParm(ts, "-shutdown", CMD_FLAG, CMD_OPTIONAL,
2521 "Shutdown all afs state");
2523 cmd_AddParm(ts, "-enable_peer_stats", CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2524 "Collect rpc statistics by peer");
2525 cmd_AddParm(ts, "-enable_process_stats", CMD_FLAG,
2526 CMD_OPTIONAL | CMD_HIDE,
2527 "Collect rpc statistics for this process");
2528 cmd_AddParm(ts, "-mem_alloc_sleep", CMD_FLAG, (CMD_OPTIONAL | CMD_HIDE),
2529 "Allow sleeps when allocating memory cache");
2530 cmd_AddParm(ts, "-afsdb", CMD_FLAG, (CMD_OPTIONAL),
2531 "Enable AFSDB support");
2532 cmd_AddParm(ts, "-files_per_subdir", CMD_SINGLE, CMD_OPTIONAL,
2533 "log(2) of the number of cache files per cache subdirectory");
2534 cmd_AddParm(ts, "-dynroot", CMD_FLAG, CMD_OPTIONAL,
2535 "Enable dynroot support");
2536 cmd_AddParm(ts, "-fakestat", CMD_FLAG, CMD_OPTIONAL,
2537 "Enable fakestat support for cross-cell mounts");
2538 cmd_AddParm(ts, "-fakestat-all", CMD_FLAG, CMD_OPTIONAL,
2539 "Enable fakestat support for all mounts");
2540 cmd_AddParm(ts, "-nomount", CMD_FLAG, CMD_OPTIONAL, "Do not mount AFS");
2541 cmd_AddParm(ts, "-backuptree", CMD_FLAG, CMD_OPTIONAL,
2542 "Prefer backup volumes for mointpoints in backup volumes");
2544 cmd_AddParm(ts, "-rxbind", CMD_FLAG, CMD_OPTIONAL,
2545 "Bind the Rx socket (one interface only)");
2546 cmd_AddParm(ts, "-settime", CMD_FLAG, CMD_OPTIONAL, "set the time");
2547 cmd_AddParm(ts, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2548 "set rx_extraPackets to this value");
2549 cmd_AddParm(ts, "-splitcache", CMD_SINGLE, CMD_OPTIONAL,
2550 "Percentage RW versus RO in cache (specify as 60/40)");
2551 cmd_AddParm(ts, "-disable-dynamic-vcaches", CMD_FLAG, CMD_OPTIONAL,
2552 "disable stat/vcache cache growing as needed");
2553 cmd_AddParm(ts, "-rxmaxmtu", CMD_SINGLE, CMD_OPTIONAL, "set rx max MTU to use");
2557 afsd_parse(int argc, char **argv)
2559 return cmd_Dispatch(argc, argv);
2562 #ifdef AFS_SGI53_ENV
2563 #ifdef AFS_SGI61_ENV
2564 /* The dwarf structures are searched to find entry points of static functions
2565 * and the addresses of static variables. The file name as well as the
2566 * sybmol name is reaquired.
2569 /* Contains list of names to find in given file. */
2571 char *name; /* Name of variable or function. */
2572 afs_hyper_t addr; /* Address of function, undefined if not found. */
2573 Dwarf_Half type; /* DW_AT_location for vars, DW_AT_lowpc for func's */
2574 char found; /* set if found. */
2578 char *file; /* Name of file containing vars or funcs */
2579 staticAddrList *addrList; /* List of vars and/or funcs. */
2580 int nAddrs; /* # of addrList's */
2581 int found; /* set if we've found this file already. */
2584 /* routines used to find addresses in /unix */
2585 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2586 void findMDebugStaticAddresses(staticNameList *, int, int);
2588 void findDwarfStaticAddresses(staticNameList *, int);
2589 void findElfAddresses(Dwarf_Debug, Dwarf_Die, staticNameList *);
2590 void getElfAddress(Dwarf_Debug, Dwarf_Die, staticAddrList *);
2592 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2593 #define AFS_N_FILELISTS 2
2594 #define AFS_SYMS_NEEDED 3
2595 #else /* AFS_SGI62_ENV */
2596 #define AFS_N_FILELISTS 1
2597 #endif /* AFS_SGI62_ENV */
2602 set_staticaddrs(void)
2604 staticNameList fileList[AFS_N_FILELISTS];
2606 fileList[0].addrList =
2607 (staticAddrList *) calloc(1, sizeof(staticAddrList));
2608 if (!fileList[0].addrList) {
2609 printf("set_staticaddrs: Can't calloc fileList[0].addrList\n");
2612 fileList[0].file = "nfs_server.c";
2613 fileList[0].found = 0;
2614 fileList[0].nAddrs = 1;
2615 fileList[0].addrList[0].name = "rfsdisptab_v2";
2616 fileList[0].addrList[0].type = DW_AT_location;
2617 fileList[0].addrList[0].found = 0;
2619 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2620 fileList[1].addrList =
2621 (staticAddrList *) calloc(2, sizeof(staticAddrList));
2622 if (!fileList[1].addrList) {
2623 printf("set_staticaddrs: Can't malloc fileList[1].addrList\n");
2626 fileList[1].file = "uipc_socket.c";
2627 fileList[1].found = 0;
2628 fileList[1].nAddrs = 2;
2629 fileList[1].addrList[0].name = "sblock";
2630 fileList[1].addrList[0].type = DW_AT_low_pc;
2631 fileList[1].addrList[0].found = 0;
2632 fileList[1].addrList[1].name = "sbunlock";
2633 fileList[1].addrList[1].type = DW_AT_low_pc;
2634 fileList[1].addrList[1].found = 0;
2636 if (64 != sysconf(_SC_KERN_POINTERS))
2637 findMDebugStaticAddresses(fileList, AFS_N_FILELISTS, AFS_SYMS_NEEDED);
2639 #endif /* AFS_SGI62_ENV */
2640 findDwarfStaticAddresses(fileList, AFS_N_FILELISTS);
2642 if (fileList[0].addrList[0].found) {
2643 afsd_call_syscall(AFSOP_NFSSTATICADDR2, fileList[0].addrList[0].addr.high,
2644 fileList[0].addrList[0].addr.low);
2647 printf("NFS V2 is not present in the kernel.\n");
2649 free(fileList[0].addrList);
2650 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2651 if (fileList[1].addrList[0].found && fileList[1].addrList[1].found) {
2652 afsd_call_syscall(AFSOP_SBLOCKSTATICADDR2,
2653 fileList[1].addrList[0].addr.high,
2654 fileList[1].addrList[0].addr.low,
2655 fileList[1].addrList[1].addr.high,
2656 fileList[1].addrList[1].addr.low);
2658 if (!fileList[1].addrList[0].found)
2659 printf("Can't find %s in kernel. Exiting.\n",
2660 fileList[1].addrList[0].name);
2661 if (!fileList[1].addrList[0].found)
2662 printf("Can't find %s in kernel. Exiting.\n",
2663 fileList[1].addrList[1].name);
2666 free(fileList[1].addrList);
2667 #endif /* AFS_SGI62_ENV */
2671 /* Find addresses for static variables and functions. */
2673 findDwarfStaticAddresses(staticNameList * nameList, int nLists)
2680 char *hname = (char *)0;
2681 Dwarf_Unsigned dwarf_access = O_RDONLY;
2682 Dwarf_Debug dwarf_debug;
2683 Dwarf_Error dwarf_error;
2684 Dwarf_Unsigned dwarf_cu_header_length;
2685 Dwarf_Unsigned dwarf_abbrev_offset;
2686 Dwarf_Half dwarf_address_size;
2687 Dwarf_Unsigned next_cu_header;
2688 Dwarf_Die dwarf_die;
2689 Dwarf_Die dwarf_next_die;
2690 Dwarf_Die dwarf_child_die;
2692 if (elf_version(EV_CURRENT) == EV_NONE) {
2693 printf("findDwarfStaticAddresses: Bad elf version.\n");
2697 if ((fd = open("/unix", O_RDONLY, 0)) < 0) {
2698 printf("findDwarfStaticAddresses: Failed to open /unix.\n");
2702 dwarf_init(fd, dwarf_access, NULL, NULL, &dwarf_debug, &dwarf_error);
2703 if (code != DW_DLV_OK) {
2704 /* Nope hope for the elves and dwarves, try intermediate code. */
2711 /* Run through the headers until we find ones for files we've
2712 * specified in nameList.
2715 dwarf_next_cu_header(dwarf_debug, &dwarf_cu_header_length, NULL,
2716 &dwarf_abbrev_offset, &dwarf_address_size,
2717 &next_cu_header, &dwarf_error);
2718 if (code == DW_DLV_NO_ENTRY) {
2720 } else if (code == DW_DLV_ERROR) {
2721 printf("findDwarfStaticAddresses: Error reading headers: %s\n",
2722 dwarf_errmsg(dwarf_error));
2726 code = dwarf_siblingof(dwarf_debug, NULL, &dwarf_die, &dwarf_error);
2727 if (code != DW_DLV_OK) {
2728 printf("findDwarfStaticAddresses: Can't get first die. %s\n",
2729 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2733 /* This is the header, test the name. */
2734 code = dwarf_diename(dwarf_die, &hname, &dwarf_error);
2735 if (code == DW_DLV_OK) {
2736 s = strrchr(hname, '/');
2737 for (i = 0; i < nLists; i++) {
2738 if (s && !strcmp(s + 1, nameList[i].file)) {
2739 findElfAddresses(dwarf_debug, dwarf_die, &nameList[i]);
2746 ("findDwarfStaticAddresses: Can't get name of current header. %s\n",
2747 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2750 dwarf_dealloc(dwarf_debug, hname, DW_DLA_STRING);
2752 if (found >= nLists) { /* we're done */
2757 /* Frees up all allocated space. */
2758 (void)dwarf_finish(dwarf_debug, &dwarf_error);
2763 findElfAddresses(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_die,
2764 staticNameList * nameList)
2767 Dwarf_Error dwarf_error;
2768 Dwarf_Die dwarf_next_die;
2769 Dwarf_Die dwarf_child_die;
2770 Dwarf_Attribute dwarf_return_attr;
2771 char *vname = (char *)0;
2775 /* Drop into this die to find names in addrList. */
2776 code = dwarf_child(dwarf_die, &dwarf_child_die, &dwarf_error);
2777 if (code != DW_DLV_OK) {
2778 printf("findElfAddresses: Can't get child die. %s\n",
2779 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2783 /* Try to find names in each sibling. */
2784 dwarf_next_die = (Dwarf_Die) 0;
2786 code = dwarf_diename(dwarf_child_die, &vname, &dwarf_error);
2787 /* It's possible that some siblings don't have names. */
2788 if (code == DW_DLV_OK) {
2789 for (i = 0; i < nameList->nAddrs; i++) {
2790 if (!nameList->addrList[i].found) {
2791 if (!strcmp(vname, nameList->addrList[i].name)) {
2792 getElfAddress(dwarf_debug, dwarf_child_die,
2793 &(nameList->addrList[i]));
2801 dwarf_dealloc(dwarf_debug, dwarf_next_die, DW_DLA_DIE);
2803 if (found >= nameList->nAddrs) { /* we're done. */
2807 dwarf_next_die = dwarf_child_die;
2809 dwarf_siblingof(dwarf_debug, dwarf_next_die, &dwarf_child_die,
2812 } while (code == DW_DLV_OK);
2815 /* Get address out of current die. */
2817 getElfAddress(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_child_die,
2818 staticAddrList * addrList)
2821 Dwarf_Error dwarf_error;
2822 Dwarf_Attribute dwarf_return_attr;
2823 Dwarf_Bool dwarf_return_bool;
2824 Dwarf_Locdesc *llbuf = NULL;
2825 Dwarf_Signed listlen;
2826 off64_t addr = (off64_t) 0;
2830 dwarf_hasattr(dwarf_child_die, addrList->type, &dwarf_return_bool,
2832 if ((code != DW_DLV_OK) || (!dwarf_return_bool)) {
2833 printf("getElfAddress: no address given for %s. %s\n", addrList->name,
2834 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2838 dwarf_attr(dwarf_child_die, addrList->type, &dwarf_return_attr,
2840 if (code != DW_DLV_OK) {
2841 printf("getElfAddress: Can't get attribute. %s\n",
2842 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2846 switch (addrList->type) {
2847 case DW_AT_location:
2849 dwarf_loclist(dwarf_return_attr, &llbuf, &listlen, &dwarf_error);
2850 if (code != DW_DLV_OK) {
2851 printf("getElfAddress: Can't get location for %s. %s\n",
2853 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2856 if ((listlen != 1) || (llbuf[0].ld_cents != 1)) {
2857 printf("getElfAddress: %s has more than one address.\n",
2861 addr = llbuf[0].ld_s[0].lr_number;
2866 dwarf_lowpc(dwarf_child_die, (Dwarf_Addr *) & addr, &dwarf_error);
2867 if (code != DW_DLV_OK) {
2868 printf("getElfAddress: Can't get lowpc for %s. %s\n",
2870 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2876 printf("getElfAddress: Bad case %d in switch.\n", addrList->type);
2880 addrList->addr.high = (addr >> 32) & 0xffffffff;
2881 addrList->addr.low = addr & 0xffffffff;
2882 addrList->found = 1;
2885 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2886 /* Find symbols in the .mdebug section for 32 bit kernels. */
2889 * On 32bit platforms, we're still using the ucode compilers to build
2890 * the kernel, so we need to get our static text/data from the .mdebug
2891 * section instead of the .dwarf sections.
2893 /* SearchNameList searches our bizarre structs for the given string.
2894 * If found, sets the found bit and the address and returns 1.
2895 * Not found returns 0.
2898 SearchNameList(char *name, afs_uint32 addr, staticNameList * nameList,
2902 for (i = 0; i < nLists; i++) {
2903 for (j = 0; j < nameList[i].nAddrs; j++) {
2904 if (nameList[i].addrList[j].found)
2906 if (!strcmp(name, nameList[i].addrList[j].name)) {
2907 nameList[i].addrList[j].addr.high = 0;
2908 nameList[i].addrList[j].addr.low = addr;
2909 nameList[i].addrList[j].found = 1;
2918 SearchMDebug(Elf_Scn * scnp, Elf32_Shdr * shdrp, staticNameList * nameList,
2919 int nLists, int needed)
2921 long *buf = (long *)(elf_getdata(scnp, NULL)->d_buf);
2922 u_long addr, mdoff = shdrp->sh_offset;
2924 SYMR *symbase, *symp, *symend;
2925 FDR *fdrbase, *fdrp;
2927 char *strbase, *str;
2932 addr = (__psunsigned_t) buf;
2933 hdrp = (HDRR *) addr;
2935 /* setup base addresses */
2936 addr = (u_long) buf + (u_long) (hdrp->cbFdOffset - mdoff);
2937 fdrbase = (FDR *) addr;
2938 addr = (u_long) buf + (u_long) (hdrp->cbSymOffset - mdoff);
2939 symbase = (SYMR *) addr;
2940 addr = (u_long) buf + (u_long) (hdrp->cbSsOffset - mdoff);
2941 strbase = (char *)addr;
2943 #define KEEPER(a,b) ((a == stStaticProc && b == scText) || \
2944 (a == stStatic && (b == scData || b == scBss || \
2945 b == scSBss || b == scSData)))
2947 for (fdrp = fdrbase; fdrp < &fdrbase[hdrp->ifdMax]; fdrp++) {
2948 str = strbase + fdrp->issBase + fdrp->rss;
2950 /* local symbols for each fd */
2951 for (symp = &symbase[fdrp->isymBase];
2952 symp < &symbase[fdrp->isymBase + fdrp->csym]; symp++) {
2953 if (KEEPER(symp->st, symp->sc)) {
2954 if (symp->value == 0)
2957 str = strbase + fdrp->issBase + symp->iss;
2958 /* Look for AFS symbols of interest */
2959 if (SearchNameList(str, symp->value, nameList, nLists)) {
2961 if (nFound >= needed)
2970 * returns section with the name of scn_name, & puts its header in shdr64 or
2971 * shdr32 based on elf's file type
2975 findMDebugSection(Elf * elf, char *scn_name)
2979 Elf_Scn *scn = NULL;
2983 if ((ehdr32 = elf32_getehdr(elf)) == NULL)
2986 if ((scn = elf_nextscn(elf, scn)) == NULL)
2988 if ((shdr32 = elf32_getshdr(scn)) == NULL)
2992 elf_strptr(elf, ehdr32->e_shstrndx, shdr32->sh_name)));
2999 findMDebugStaticAddresses(staticNameList * nameList, int nLists, int needed)
3003 Elf_Scn *mdebug_scn;
3004 Elf32_Shdr *mdebug_shdr;
3007 if ((fd = open("/unix", O_RDONLY)) == -1) {
3008 printf("findMDebugStaticAddresses: Failed to open /unix.\n");
3012 (void)elf_version(EV_CURRENT);
3013 if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
3015 ("findMDebugStaticAddresses: /unix doesn't seem to be an elf file\n");
3019 mdebug_scn = findMDebugSection(elf, ".mdebug");
3021 printf("findMDebugStaticAddresses: Can't find .mdebug section.\n");
3024 mdebug_shdr = elf32_getshdr(mdebug_scn);
3026 printf("findMDebugStaticAddresses: Can't find .mdebug header.\n");
3030 (void)SearchMDebug(mdebug_scn, mdebug_shdr, nameList, nLists, needed);
3036 #endif /* AFS_SGI62_ENV */
3038 #else /* AFS_SGI61_ENV */
3040 struct nlist nlunix[] = {
3047 int i, j, kmem, count;
3049 if ((kmem = open("/dev/kmem", O_RDONLY)) < 0) {
3050 printf("Warning: can't open /dev/kmem\n");
3053 if ((j = nlist("/unix", nlunix)) < 0) {
3054 printf("Warning: can't nlist /unix\n");
3057 i = nlunix[0].n_value;
3058 if (lseek(kmem, i, L_SET /*0 */ ) != i) {
3059 printf("Warning: can't lseek to %x\n", i);
3062 if ((j = read(kmem, &count, sizeof count)) != sizeof count) {
3063 printf("WARNING: kmem read at %x failed\n", i);
3068 #endif /* AFS_SGI61_ENV */
3069 #endif /* AFS_SGI53_ENV */
3071 struct afsd_syscall_args {
3083 * entry point for calling a syscall from another proc/thread.
3085 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
3088 * @retval NULL always
3091 call_syscall_thread(void *rock)
3093 struct afsd_syscall_args *args = rock;
3097 afsd_set_rx_rtpri();
3100 code = afsd_call_syscall(args->syscall, args->param1, args->param2,
3101 args->param3, args->param4, args->param5);
3102 if (code && args->syscall == AFSOP_START_CS) {
3103 printf("%s: No check server daemon in client.\n", args->rn);
3112 * common code for calling a syscall in another proc/thread.
3114 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
3115 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
3116 * let it run in the background
3117 * @param[in] rn the name of the running program
3118 * @param[in] syscall syscall to run
3121 fork_syscall_impl(int rx, int wait, const char *rn, long syscall, long param1,
3122 long param2, long param3, long param4, long param5)
3124 struct afsd_syscall_args *args;
3126 args = malloc(sizeof(*args));
3128 args->syscall = syscall;
3129 args->param1 = param1;
3130 args->param2 = param2;
3131 args->param3 = param3;
3132 args->param4 = param4;
3133 args->param5 = param5;
3137 afsd_fork(wait, call_syscall_thread, args);
3141 * call a syscall in another process or thread.
3144 fork_syscall(const char *rn, long syscall, long param1, long param2,
3145 long param3, long param4, long param5)
3147 fork_syscall_impl(0, 0, rn, syscall, param1, param2, param3, param4, param5);
3150 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
3152 * call a syscall in another process or thread, and give it RX priority.
3155 fork_rx_syscall(const char *rn, long syscall, long param1, long param2,
3156 long param3, long param4, long param5)
3158 fork_syscall_impl(1, 0, rn, syscall, param1, param2, param3, param4, param5);
3160 #endif /* AFS_SUN510_ENV || RXK_LISTENER_ENV */
3162 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
3164 * call a syscall in another process or thread, give it RX priority, and wait
3165 * for it to finish before returning.
3168 fork_rx_syscall_wait(const char *rn, long syscall, long param1, long param2,
3169 long param3, long param4, long param5)
3171 fork_syscall_impl(1, 1, rn, syscall, param1, param2, param3, param4, param5);
3173 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */