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 [OBSOLETE] 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 [IGNORED] 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 * -volumes The number of volume entries.
48 * -biods Number of bkg I/O daemons (AIX3.1 only)
49 * -prealloc Number of preallocated "small" memory blocks
50 * -logfile [IGNORED] Place where to put the logfile (default in
52 * -waitclose make close calls always synchronous (slows em down, tho)
53 * -files_per_subdir [n] number of files per cache subdir. (def=2048)
54 * -shutdown Shutdown afs daemons
55 * -enable_peer_stats Collect RPC statistics by peer.
56 * -enable_process_stats Collect RPC statistics for this process.
57 * -mem_alloc_sleep [IGNORED] Sleep when allocating memory.
58 * -afsdb Enable AFSDB support.
59 * -dynroot Enable dynroot support.
60 * -dynroot-sparse Enable dynroot support with minimal cell list.
61 * -fakestat Enable fake stat() for cross-cell mounts.
62 * -fakestat-all Enable fake stat() for all mounts.
63 * -nomount Do not mount /afs.
64 * -backuptree Prefer backup volumes for mountpoints in backup volumes.
65 * -rxbind Bind the rx socket.
66 * -rxpck Value for rx_extraPackets.
67 * -splitcache RW/RO ratio for cache.
68 * -rxmaxfrags Max number of UDP fragments per rx packet.
69 * -inumcalc inode number calculation method; 0=compat, 1=MD5 digest
70 * -volume-ttl vldb cache timeout in seconds
71 *---------------------------------------------------------------------------*/
73 #include <afsconfig.h>
74 #include <afs/param.h>
75 /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is
76 * defined, and roken includes dirent */
77 #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV)
89 #include <afs/opr_assert.h>
95 #include <afs/afsutil.h>
99 #include <hcrypto/rand.h>
101 /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is
103 #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV)
111 #ifdef HAVE_SYS_FS_TYPES_H
112 #include <sys/fs_types.h>
115 #if defined(HAVE_SYS_MOUNT_H) && !defined(AFS_ARM_DARWIN_ENV)
116 #include <sys/mount.h>
119 #ifdef HAVE_SYS_FCNTL_H
120 #include <sys/fcntl.h>
123 #ifdef HAVE_SYS_MNTTAB_H
124 #include <sys/mnttab.h>
127 #ifdef HAVE_SYS_MNTENT_H
128 #include <sys/mntent.h>
135 #ifdef HAVE_SYS_VFS_H
139 #ifdef HAVE_SYS_FSTYP_H
140 #include <sys/fstyp.h>
145 #include <afs/afs_args.h>
146 #include <afs/cellconfig.h>
147 #include <afs/afssyscalls.h>
148 #include <afs/afsutil.h>
149 #include <afs/sys_prototypes.h>
151 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
153 #include <symconst.h>
159 #ifdef AFS_DARWIN_ENV
160 #ifdef AFS_DARWIN80_ENV
161 #include <sys/xattr.h>
163 #include <CoreFoundation/CoreFoundation.h>
165 static int event_pid;
166 #ifndef AFS_ARM_DARWIN_ENV
167 #define MACOS_EVENT_HANDLING 1
169 #endif /* AFS_DARWIN_ENV */
171 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
172 #include <sys/statvfs.h>
174 #if defined(AFS_SUN_ENV)
177 #ifdef HAVE_SYS_STATFS_H
178 #include <sys/statfs.h>
187 #define CACHEINFOFILE "cacheinfo"
188 #define DCACHEFILE "CacheItems"
189 #define VOLINFOFILE "VolumeItems"
190 #define CELLINFOFILE "CellItems"
192 #define MAXIPADDRS 1024
194 char LclCellName[64];
196 #define MAX_CACHE_LOOPS 4
200 * Internet address (old style... should be updated). This was pulled out of the old 4.2
201 * version of <netinet/in.h>, since it's still useful.
206 u_char s_b1, s_b2, s_b3, s_b4;
215 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
216 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
217 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
218 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
219 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
222 * Global configuration variables.
224 static int enable_rxbind = 0;
225 static int afs_shutdown = 0;
226 static int cacheBlocks; /*Num blocks in the cache */
227 static int cacheFiles; /*Optimal # of files in workstation cache */
228 static int rwpct = 0;
229 static int ropct = 0;
230 static int cacheStatEntries; /*Number of stat cache entries */
231 static char *cacheBaseDir; /*Where the workstation AFS cache lives */
232 static char *confDir; /*Where the workstation AFS configuration lives */
233 static char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
234 static char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
235 static char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
236 static char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
237 static char fullpn_VFile[1024]; /*Full pathname of data cache files */
238 static char *vFilePtr; /*Ptr to the number part of above pathname */
239 static int sawCacheMountDir = 0; /* from cmd line */
240 static int sawCacheBaseDir = 0;
241 static int sawCacheBlocks = 0;
242 static int sawDCacheSize = 0;
244 static int sawBiod = 0;
246 static int sawCacheStatEntries = 0;
247 char *afsd_cacheMountDir;
248 static char *rootVolume = NULL;
250 static int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
252 static int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
254 static int ownerRWmode = 0600; /*Read/write OK by owner */
255 static int filesSet = 0; /*True if number of files explicitly set */
256 static int nFilesPerDir = 2048; /* # files per cache dir */
257 #if defined(AFS_CACHE_BYPASS)
258 #define AFSD_NDAEMONS 4
260 #define AFSD_NDAEMONS 2
262 static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */
263 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
264 static int dCacheSize; /* # of dcache entries */
265 static int vCacheSize = 200; /* # of volume cache entries */
266 static int rootVolSet = 0; /*True if root volume name explicitly set */
267 int addrNum; /*Cell server address index being printed */
268 static int cacheFlags = 0; /*Flags to cache manager */
270 static int nBiods = 5; /* AIX3.1 only */
272 static int preallocs = 400; /* Def # of allocated memory blocks */
273 static int enable_peer_stats = 0; /* enable rx stats */
274 static int enable_process_stats = 0; /* enable rx stats */
275 static int enable_afsdb = 0; /* enable AFSDB support */
276 static int enable_dynroot = 0; /* enable dynroot support */
277 static int enable_fakestat = 0; /* enable fakestat support */
278 static int enable_backuptree = 0; /* enable backup tree support */
279 static int enable_nomount = 0; /* do not mount */
280 static int enable_splitcache = 0;
281 static char *inumcalc = NULL; /* inode number calculation method */
282 static int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
283 int afsd_verbose = 0; /*Are we being chatty? */
284 int afsd_debug = 0; /*Are we printing debugging info? */
285 static int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
286 static int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */
287 static int rxmaxfrags = 0; /* Are we forcing a limit on frags? */
288 static int volume_ttl = 0; /* enable vldb cache timeout support */
291 #define AFSD_INO_T ino64_t
293 #define AFSD_INO_T afs_uint32
295 struct afsd_file_list {
297 struct afsd_file_list *next;
299 struct afsd_file_list **cache_dir_filelist = NULL;
300 int *cache_dir_list = NULL; /* Array of cache subdirs */
301 int *dir_for_V = NULL; /* Array: dir of each cache file.
302 * -1: file does not exist
303 * -2: file exists in top-level
304 * >=0: file exists in Dxxx
306 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
307 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
310 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
311 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
312 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
313 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
314 struct afs_cacheParams cparams; /* params passed to cache manager */
316 int PartSizeOverflow(char *path, int cs);
318 static int afsd_syscall(int code, ...);
320 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
321 static void fork_rx_syscall_wait(const char *rn, int syscall, ...);
323 static void fork_rx_syscall(const char *rn, int syscall, ...);
324 static void fork_syscall(const char *rn, int syscall, ...);
370 #ifdef MACOS_EVENT_HANDLING
371 #include <SystemConfiguration/SystemConfiguration.h>
372 #include <SystemConfiguration/SCDynamicStore.h>
374 #include <IOKit/pwr_mgt/IOPMLib.h>
375 #include <IOKit/IOMessage.h>
377 static io_connect_t root_port;
378 static IONotificationPortRef notify;
379 static io_object_t iterator;
380 static CFRunLoopSourceRef source;
383 afsd_sleep_callback(void * refCon, io_service_t service,
384 natural_t messageType, void * messageArgument )
386 switch (messageType) {
387 case kIOMessageCanSystemSleep:
388 /* Idle sleep is about to kick in; can
389 prevent sleep by calling IOCancelPowerChange, otherwise
390 if we don't ack in 30s the system sleeps anyway */
393 IOAllowPowerChange(root_port, (long)messageArgument);
396 case kIOMessageSystemWillSleep:
397 /* The system WILL go to sleep. Ack or suffer delay */
399 IOAllowPowerChange(root_port, (long)messageArgument);
402 case kIOMessageSystemWillRestart:
403 /* The system WILL restart. Ack or suffer delay */
405 IOAllowPowerChange(root_port, (long)messageArgument);
408 case kIOMessageSystemWillPowerOn:
409 case kIOMessageSystemHasPoweredOn:
410 /* coming back from sleep */
412 IOAllowPowerChange(root_port, (long)messageArgument);
416 IOAllowPowerChange(root_port, (long)messageArgument);
422 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
424 /* parse multihomed address files */
425 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
430 code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS,
431 reason, AFSDIR_CLIENT_NETINFO_FILEPATH,
432 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
435 /* Note we're refreshing */
436 code = code | 0x40000000;
437 afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
439 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
442 /* Since it's likely this means our DNS server changed, reinit now */
447 /* This function is called when the system's ip addresses may have changed. */
449 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
451 CFRunLoopTimerRef timer;
453 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
454 0.0, 0, 0, afsd_update_addresses, NULL);
455 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
456 kCFRunLoopDefaultMode);
461 afsd_event_cleanup(int signo) {
463 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
465 IODeregisterForSystemPower(&iterator);
466 IOServiceClose(root_port);
467 IONotificationPortDestroy(notify);
471 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
473 afsd_install_events(void)
475 SCDynamicStoreContext ctx = {0};
476 SCDynamicStoreRef store;
478 root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator);
481 CFRunLoopAddSource(CFRunLoopGetCurrent(),
482 IONotificationPortGetRunLoopSource(notify),
483 kCFRunLoopDefaultMode);
487 store = SCDynamicStoreCreate (NULL,
488 CFSTR ("AddIPAddressListChangeCallbackSCF"),
489 afsd_ipaddr_callback, &ctx);
494 /* Request IPV4 address change notification */
495 keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity
496 (NULL, kSCDynamicStoreDomainState,
497 kSCCompAnyRegex, kSCEntNetIPv4));
500 /* This should tell us when the hostname(s) change. do we care? */
501 keys[N] = SCDynamicStoreKeyCreateHostNames (NULL);
504 if (keys[0] != NULL) {
505 CFArrayRef pattern_array;
507 pattern_array = CFArrayCreate (NULL, keys, 1,
508 &kCFTypeArrayCallBacks);
510 if (pattern_array != NULL)
512 SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array);
513 source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0);
515 CFRelease (pattern_array);
525 if (source != NULL) {
526 CFRunLoopAddSource (CFRunLoopGetCurrent(),
527 source, kCFRunLoopDefaultMode);
530 signal(SIGTERM, afsd_event_cleanup);
536 /* ParseArgs is now obsolete, being handled by cmd */
538 /*------------------------------------------------------------------------------
542 * Open the file containing the description of the workstation's AFS cache
543 * and pull out its contents. The format of this file is as follows:
545 * cacheMountDir:cacheBaseDir:cacheBlocks
551 * 0 if everything went well,
555 * Nothing interesting.
559 *---------------------------------------------------------------------------*/
562 ParseCacheInfoFile(void)
564 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
565 FILE *cachefd; /*Descriptor for cache info file */
566 int parseResult; /*Result of our fscanf() */
568 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
571 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
573 cachefd = fopen(fullpn_CacheInfo, "r");
575 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
580 * Parse the contents of the cache info file. All chars up to the first
581 * colon are the AFS mount directory, all chars to the next colon are the
582 * full path name of the workstation cache directory and all remaining chars
583 * represent the number of blocks in the cache.
585 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
587 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
588 tCacheBaseDir, &tCacheBlocks);
591 * Regardless of how the parse went, we close the cache info file.
595 if (parseResult == EOF || parseResult < 3) {
596 printf("%s: Format error in cache info file!\n", rn);
597 if (parseResult == EOF)
598 printf("\tEOF encountered before any field parsed.\n");
600 printf("\t%d out of 3 fields successfully parsed.\n",
606 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
608 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
610 /* now copy in the fields not explicitly overridden by cmd args */
611 if (!sawCacheMountDir)
612 afsd_cacheMountDir = strdup(tmd);
613 if (!sawCacheBaseDir)
614 cacheBaseDir = strdup(tbd);
616 cacheBlocks = tCacheBlocks;
619 printf("%s: Cache info file successfully parsed:\n", rn);
621 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
622 tmd, tbd, tCacheBlocks);
624 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
625 return (PartSizeOverflow(tbd, cacheBlocks));
632 * All failures to open the partition are ignored. Also if the cache dir
633 * isn't a mounted partition it's also ignored since we can't guarantee
634 * what will be stored afterwards. Too many if's. This is now purely
635 * advisory. ODS with over 2G partition also gives warning message.
638 * 0 if everything went well,
642 PartSizeOverflow(char *path, int cs)
645 afs_int64 totalblks, mint;
646 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
647 struct statvfs statbuf;
649 if (statvfs(path, &statbuf) != 0) {
652 ("statvfs failed on %s; skip checking for adequate partition space\n",
656 totalblks = statbuf.f_blocks;
657 bsize = statbuf.f_frsize;
659 if (strcmp(statbuf.f_basetype, "jfs")) {
660 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
661 path, statbuf.f_basetype);
664 #endif /* AFS_AIX51_ENV */
666 #else /* AFS_HAVE_STATVFS */
667 struct statfs statbuf;
669 if (statfs(path, &statbuf) < 0) {
672 ("statfs failed on %s; skip checking for adequate partition space\n",
676 totalblks = statbuf.f_blocks;
677 bsize = statbuf.f_bsize;
680 return 0; /* success */
682 /* now free and totalblks are in fragment units, but we want them in 1K units */
684 totalblks *= (bsize / 1024);
686 totalblks /= (1024 / bsize);
689 mint = totalblks / 100 * 95;
692 ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n",
700 /*-----------------------------------------------------------------------------
704 * Given the final component of a filename expected to be a data cache file,
705 * return the integer corresponding to the file. Note: we reject names that
706 * are not a ``V'' followed by an integer. We also reject those names having
707 * the right format but lying outside the range [0..cacheFiles-1].
710 * fname : Char ptr to the filename to parse.
711 * max : integer for the highest number to accept
714 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
718 * Nothing interesting.
722 *---------------------------------------------------------------------------*/
725 doGetXFileNumber(char *fname, char filechar, int maxNum)
727 int computedVNumber; /*The computed file number we return */
728 int filenameLen; /*Number of chars in filename */
729 int currDigit; /*Current digit being processed */
732 * The filename must have at least two characters, the first of which must be a ``filechar''
733 * and the second of which cannot be a zero unless the file is exactly two chars long.
735 filenameLen = strlen(fname);
738 if (fname[0] != filechar)
740 if ((filenameLen > 2) && (fname[1] == '0'))
744 * Scan through the characters in the given filename, failing immediately if a non-digit
747 for (currDigit = 1; currDigit < filenameLen; currDigit++)
748 if (isdigit(fname[currDigit]) == 0)
752 * All relevant characters are digits. Pull out the decimal number they represent.
753 * Reject it if it's out of range, otherwise return it.
755 computedVNumber = atoi(++fname);
756 if (computedVNumber < cacheFiles)
757 return (computedVNumber);
763 GetVFileNumber(char *fname, int maxFile)
765 return doGetXFileNumber(fname, 'V', maxFile);
769 GetDDirNumber(char *fname, int maxDir)
771 return doGetXFileNumber(fname, 'D', maxDir);
775 /*-----------------------------------------------------------------------------
779 * Given a full pathname for a file we need to create for the workstation AFS
780 * cache, go ahead and create the file.
783 * fname : Full pathname of file to create.
784 * statp : A pointer to a stat buffer which, if NON-NULL, will be
788 * 0 iff the file was created,
792 * The given cache file has been found to be missing.
796 *---------------------------------------------------------------------------*/
799 CreateCacheSubDir(char *basename, int dirNum)
801 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
805 /* Build the new cache subdirectory */
806 sprintf(dir, "%s/D%d", basename, dirNum);
809 printf("%s: Creating cache subdir '%s'\n", rn, dir);
811 if ((ret = mkdir(dir, 0700)) != 0) {
812 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
818 /* Mark this directory as created */
819 cache_dir_list[dirNum] = 0;
821 /* And return success */
826 SetNoBackupAttr(char *fullpn)
828 #ifdef AFS_DARWIN80_ENV
831 ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem",
832 "com.apple.backupd", strlen("com.apple.backupd"), 0,
837 fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno));
844 MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile,
847 static char rn[] = "MoveCacheFile";
848 char from[1024], to[1024];
851 if (cache_dir_list[toDir] < 0
852 && (ret = CreateCacheSubDir(basename, toDir))) {
853 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
857 /* Build the from,to dir */
859 /* old-style location */
860 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
862 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
866 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
869 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
871 if ((ret = rename(from, to)) != 0) {
872 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
873 from, to, ret, errno);
878 /* Reset directory pointer; fix file counts */
879 dir_for_V[cacheFile] = toDir;
880 cache_dir_list[toDir]++;
881 if (fromDir < maxDir && fromDir >= 0)
882 cache_dir_list[fromDir]--;
888 CreateCacheFile(char *fname, struct stat *statp)
890 static char rn[] = "CreateCacheFile"; /*Routine name */
891 int cfd; /*File descriptor to AFS cache file */
892 int closeResult; /*Result of close() */
895 printf("%s: Creating cache file '%s'\n", rn, fname);
896 cfd = open(fname, createAndTrunc, ownerRWmode);
898 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
903 closeResult = fstat(cfd, statp);
906 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
911 closeResult = close(cfd);
914 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
923 CreateFileIfMissing(char *fullpn, int missing)
926 if (CreateCacheFile(fullpn, NULL))
927 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
932 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
934 if (unlink(fullpn_FileToDelete)) {
935 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
936 if (rmdir(fullpn_FileToDelete)) {
937 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
938 fullpn_FileToDelete, errno);
941 printf("%s: Can't unlink '%s', errno is %d\n", rn,
942 fullpn_FileToDelete, errno);
946 /*-----------------------------------------------------------------------------
950 * Sweep through the AFS cache directory, recording the inode number for
951 * each valid data cache file there. Also, delete any file that doesn't belong
952 * in the cache directory during this sweep, and remember which of the other
953 * residents of this directory were seen. After the sweep, we create any data
954 * cache files that were missing.
957 * vFilesFound : Set to the number of data cache files found.
960 * 0 if everything went well,
964 * This routine may be called several times. If the number of data cache files
965 * found is less than the global cacheFiles, then the caller will need to call it
966 * again to record the inodes of the missing zero-length data cache files created
967 * in the previous call.
970 * Fills up the global inode_for_V array, may create and/or delete files as
972 *---------------------------------------------------------------------------*/
976 doSweepAFSCache(int *vFilesFound,
977 char *directory, /* /path/to/cache/directory */
978 int dirNum, /* current directory number */
979 int maxDir) /* maximum directory number */
981 static char rn[] = "doSweepAFSCache"; /* Routine Name */
982 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
983 char *fileToDelete; /*Ptr to last component of above */
984 DIR *cdirp; /*Ptr to cache directory structure */
986 struct dirent64 *currp; /*Current directory entry */
988 struct dirent *currp; /*Current directory entry */
990 int vFileNum; /*Data cache file's associated number */
991 int thisDir; /* A directory number */
995 printf("%s: Opening cache directory '%s'\n", rn, directory);
997 if (chmod(directory, 0700)) { /* force it to be 700 */
998 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
1002 cdirp = opendir(directory);
1003 if (cdirp == (DIR *) 0) {
1004 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
1009 * Scan the directory entries, remembering data cache file inodes
1010 * and the existance of other important residents. Recurse into
1011 * the data subdirectories.
1013 * Delete all files and directories that don't belong here.
1015 sprintf(fullpn_FileToDelete, "%s/", directory);
1016 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
1018 #ifdef AFS_SGI62_ENV
1019 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
1021 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
1025 printf("%s: Current directory entry:\n", rn);
1026 #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV)
1027 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino,
1028 currp->d_reclen, currp->d_name);
1029 #elif defined(AFS_DFBSD_ENV) || defined(AFS_USR_DFBSD_ENV)
1030 printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name);
1032 printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino,
1033 currp->d_reclen, currp->d_name);
1038 * If dirNum < 0, we are a top-level cache directory and should
1039 * only contain sub-directories and other sundry files. Therefore,
1040 * V-files are valid only if dirNum >= 0, and Directories are only
1041 * valid if dirNum < 0.
1044 if (*(currp->d_name) == 'V'
1045 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1048 * Found a valid data cache filename. Remember this
1049 * file's inode, directory, and bump the number of files found
1050 * total and in this directory.
1052 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1053 inode_for_V[vFileNum] = currp->d_ino;
1055 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1058 /* If we're in a real subdir, mark this file to be moved
1059 * if we've already got too many files in this directory
1061 assert(dirNum >= 0);
1062 cache_dir_list[dirNum]++; /* keep directory's file count */
1063 if (cache_dir_list[dirNum] > nFilesPerDir) {
1064 /* Too many files -- add to filelist */
1065 struct afsd_file_list *tmp = malloc(sizeof(*tmp));
1068 ("%s: MALLOC FAILED allocating file_list entry\n",
1071 tmp->fileNum = vFileNum;
1072 tmp->next = cache_dir_filelist[dirNum];
1073 cache_dir_filelist[dirNum] = tmp;
1078 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1079 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1081 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1082 /* Found a valid cachefile sub-Directory. Remember this number
1083 * and recurse into it. Note that subdirs cannot have subdirs.
1086 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1088 /* This directory is going away, but figure out if there
1089 * are any cachefiles in here that should be saved by
1090 * moving them to other cache directories. This directory
1091 * will be removed later.
1096 /* Save the highest directory number we've seen */
1097 if (vFileNum > highDir)
1100 /* If this directory is staying, be sure to mark it as 'found' */
1102 cache_dir_list[vFileNum] = 0;
1104 /* Print the dirname for recursion */
1105 sprintf(fileToDelete, "%s", currp->d_name);
1107 /* Note: vFileNum is the directory number */
1109 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1110 (retval == 1 ? 0 : -1));
1112 printf("%s: Recursive sweep failed on directory %s\n", rn,
1116 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1118 * Found the file holding the dcache entries.
1120 missing_DCacheFile = 0;
1121 SetNoBackupAttr(fullpn_DCacheFile);
1122 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1124 * Found the file holding the volume info.
1126 missing_VolInfoFile = 0;
1127 SetNoBackupAttr(fullpn_VolInfoFile);
1128 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1130 * Found the file holding the cell info.
1132 missing_CellInfoFile = 0;
1133 SetNoBackupAttr(fullpn_CellInfoFile);
1134 } else if ((strcmp(currp->d_name, ".") == 0)
1135 || (strcmp(currp->d_name, "..") == 0) ||
1136 #ifdef AFS_LINUX22_ENV
1137 /* this is the ext3 journal file */
1138 (strcmp(currp->d_name, ".journal") == 0) ||
1140 (strcmp(currp->d_name, "lost+found") == 0)) {
1142 * Don't do anything - this file is legit, and is to be left alone.
1146 * This file/directory doesn't belong in the cache. Nuke it.
1148 sprintf(fileToDelete, "%s", currp->d_name);
1150 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1151 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1158 * Create all the cache files that are missing.
1160 CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile);
1161 CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile);
1162 CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile);
1164 /* ADJUST CACHE FILES */
1166 /* First, let's walk through the list of files and figure out
1167 * if there are any leftover files in extra directories or
1168 * missing files. Move the former and create the latter in
1169 * subdirs with extra space.
1172 thisDir = 0; /* Keep track of which subdir has space */
1174 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
1175 if (dir_for_V[vFileNum] == -1) {
1176 /* This file does not exist. Create it in the first
1177 * subdir that still has extra space.
1179 while (thisDir < maxDir
1180 && cache_dir_list[thisDir] >= nFilesPerDir)
1182 if (thisDir >= maxDir)
1183 printf("%s: can't find directory to create V%d\n", rn,
1187 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1188 assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0);
1190 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
1192 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1193 if (cache_dir_list[thisDir] < 0
1194 && CreateCacheSubDir(directory, thisDir))
1195 printf("%s: Can't create directory for '%s'\n", rn,
1197 if (CreateCacheFile(fullpn_VFile, &statb))
1198 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1200 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1201 inode_for_V[vFileNum] = statb.st_ino;
1203 dir_for_V[vFileNum] = thisDir;
1204 cache_dir_list[thisDir]++;
1207 SetNoBackupAttr(fullpn_VFile);
1210 } else if (dir_for_V[vFileNum] >= maxDir
1211 || dir_for_V[vFileNum] == -2) {
1212 /* This file needs to move; move it to the first subdir
1213 * that has extra space. (-2 means it's in the toplevel)
1215 while (thisDir < maxDir
1216 && cache_dir_list[thisDir] >= nFilesPerDir)
1218 if (thisDir >= maxDir)
1219 printf("%s: can't find directory to move V%d\n", rn,
1223 (directory, dir_for_V[vFileNum], thisDir, vFileNum,
1225 /* Cannot move. Ignore this file??? */
1232 /* At this point, we've moved all of the valid cache files
1233 * into the valid subdirs, and created all the extra
1234 * cachefiles we need to create. Next, rebalance any subdirs
1235 * with too many cache files into the directories with not
1236 * enough cache files. Note that thisDir currently sits at
1237 * the lowest subdir that _may_ have room.
1240 for (dirNum = 0; dirNum < maxDir; dirNum++) {
1241 struct afsd_file_list *thisFile;
1243 for (thisFile = cache_dir_filelist[dirNum];
1244 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
1245 thisFile = thisFile->next) {
1246 while (thisDir < maxDir
1247 && cache_dir_list[thisDir] >= nFilesPerDir)
1249 if (thisDir >= maxDir)
1250 printf("%s: can't find directory to move V%d\n", rn,
1254 (directory, dirNum, thisDir, thisFile->fileNum,
1256 /* Cannot move. Ignore this file??? */
1260 } /* for each file to move */
1261 } /* for each directory */
1263 /* Remove any directories >= maxDir -- they should be empty */
1264 for (; highDir >= maxDir; highDir--) {
1265 sprintf(fileToDelete, "D%d", highDir);
1266 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1272 * Close the directory, return success.
1275 printf("%s: Closing cache directory.\n", rn);
1281 CheckCacheBaseDir(char *dir)
1283 struct stat statbuf;
1286 return "cache base dir not specified";
1288 if (stat(dir, &statbuf) != 0) {
1289 return "unable to stat cache base directory";
1292 /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */
1294 #ifdef AFS_LINUX24_ENV
1297 struct statfs statfsbuf;
1299 res = statfs(dir, &statfsbuf);
1301 return "unable to statfs cache base directory";
1303 #if !defined(AFS_LINUX26_ENV)
1304 if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */
1305 return "cannot use reiserfs as cache partition";
1306 } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */
1307 return "cannot use xfs as cache partition";
1308 } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */
1309 return "cannot use tmpfs as cache partition";
1310 } else if (statfsbuf.f_type != 0xEF53) {
1311 return "must use ext2 or ext3 for cache partition";
1320 struct statfs statfsbuf;
1323 res = statfs(dir, &statfsbuf);
1325 return "unable to statfs cache base directory";
1328 if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) {
1329 return "unable to determine filesystem type for cache base dir";
1332 if (strcmp(name, "hfs")) {
1333 return "can only use hfs filesystem for cache partition on hpux";
1342 struct stat statmnt, statci;
1344 if ((stat(dir, &statci) == 0)
1345 && ((vfstab = fopen(MNTTAB, "r")) != NULL)) {
1346 while (getmntent(vfstab, &mnt) == 0) {
1347 if (strcmp(dir, mnt.mnt_mountp) != 0) {
1351 if (cp = hasmntopt(&mnt, "dev="))
1353 (int)strtol(cp + strlen("dev="), NULL,
1356 if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0))
1357 rdev = statmnt.st_dev;
1359 if ((rdev == statci.st_dev)
1360 && (hasmntopt(&mnt, "logging") != NULL)) {
1364 "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n";
1378 SweepAFSCache(int *vFilesFound)
1380 static char rn[] = "SweepAFSCache"; /*Routine name */
1381 int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir;
1386 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1388 printf("%s: Memory Cache, no cache sweep done\n", rn);
1392 if (cache_dir_list == NULL) {
1393 cache_dir_list = malloc(maxDir * sizeof(*cache_dir_list));
1394 if (cache_dir_list == NULL) {
1395 printf("%s: Malloc Failed!\n", rn);
1398 for (i = 0; i < maxDir; i++)
1399 cache_dir_list[i] = -1; /* Does not exist */
1402 if (cache_dir_filelist == NULL) {
1403 cache_dir_filelist = calloc(maxDir, sizeof(*cache_dir_filelist));
1404 if (cache_dir_filelist == NULL) {
1405 printf("%s: Malloc Failed!\n", rn);
1410 if (dir_for_V == NULL) {
1411 dir_for_V = malloc(cacheFiles * sizeof(*dir_for_V));
1412 if (dir_for_V == NULL) {
1413 printf("%s: Malloc Failed!\n", rn);
1416 for (i = 0; i < cacheFiles; i++)
1417 dir_for_V[i] = -1; /* Does not exist */
1420 /* Note, setting dirNum to -2 here will cause cachefiles found in
1421 * the toplevel directory to be marked in directory "-2". This
1422 * allows us to differentiate between 'file not seen' (-1) and
1423 * 'file seen in top-level' (-2). Then when we try to move the
1424 * file into a subdirectory, we know it's in the top-level instead
1425 * of some other cache subdir.
1427 return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir);
1431 ConfigCell(struct afsconf_cell *aci, void *arock, struct afsconf_dir *adir)
1436 afs_int32 hosts[MAXHOSTSPERCELL];
1438 /* figure out if this is the home cell */
1439 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1441 cellFlags = 2; /* not home, suid is forbidden */
1442 if (enable_dynroot == 2)
1443 cellFlags |= 8; /* don't display foreign cells until looked up */
1445 /* build address list */
1446 for (i = 0; i < MAXHOSTSPERCELL; i++)
1447 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1449 if (aci->linkedCell)
1450 cellFlags |= 4; /* Flag that linkedCell arg exists,
1451 * for upwards compatibility */
1453 /* configure one cell */
1454 code = afsd_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */
1455 aci->name, /* cell name */
1456 cellFlags, /* is this the home cell? */
1457 aci->linkedCell); /* Linked cell, if any */
1459 printf("Adding cell '%s': error %d\n", aci->name, code);
1464 ConfigCellAlias(struct afsconf_cellalias *aca,
1465 void *arock, struct afsconf_dir *adir)
1467 /* push the alias into the kernel */
1468 afsd_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1473 AfsdbLookupHandler(void)
1475 afs_int32 kernelMsg[64];
1476 char acellName[128];
1478 struct afsconf_cell acellInfo;
1483 acellName[0] = '\0';
1485 #ifdef MACOS_EVENT_HANDLING
1486 /* Fork the event handler also. */
1489 afsd_install_events();
1491 } else if (code != -1) {
1496 /* On some platforms you only get 4 args to an AFS call */
1497 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1499 afsd_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1500 if (code) { /* Something is wrong? */
1505 if (*acellName == 1) /* Shutting down */
1508 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1513 kernelMsg[0] = acellInfo.numServers;
1514 if (acellInfo.timeout)
1515 kernelMsg[1] = acellInfo.timeout - time(0);
1518 for (i = 0; i < acellInfo.numServers; i++)
1519 kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1520 strncpy(acellName, acellInfo.name, sizeof(acellName));
1521 acellName[sizeof(acellName) - 1] = '\0';
1524 #ifdef AFS_DARWIN_ENV
1525 kill(event_pid, SIGTERM);
1534 struct afs_uspc_param *uspc;
1538 uspc = calloc(1, sizeof(struct afs_uspc_param));
1539 memset(srcName, 0, sizeof(srcName));
1540 memset(dstName, 0, sizeof(dstName));
1542 /* brscount starts at 0 */
1548 char srcpath[BUFSIZ];
1549 char dstpath[BUFSIZ];
1551 /* pushing in a buffer this large */
1554 code = afsd_syscall(AFSOP_BKG_HANDLER, uspc, srcName, dstName);
1555 if (code) { /* Something is wrong? */
1556 if (code == -2) /* shutting down */
1564 switch (uspc->reqtype) {
1566 snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1567 uspc->req.umv.sCell, uspc->req.umv.sVolume,
1568 uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName);
1569 snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1570 uspc->req.umv.dCell, uspc->req.umv.dVolume,
1571 uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName);
1572 if ((child = fork()) == 0) {
1573 /* first child does cp; second, rm. mv would re-enter. */
1575 switch (uspc->req.umv.idtype) {
1577 if (setuid(uspc->req.umv.id) != 0) {
1583 break; /* notreached */
1585 execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath,
1586 dstpath, (char *) NULL);
1588 if (child == (pid_t) -1) {
1593 if (waitpid(child, &status, 0) == -1)
1595 else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) {
1596 if ((child = fork()) == 0) {
1597 switch (uspc->req.umv.idtype) {
1599 if (setuid(uspc->req.umv.id) != 0) {
1605 break; /* notreached */
1607 execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--",
1608 srcpath, (char *) NULL);
1610 if (child == (pid_t) -1) {
1614 if (waitpid(child, &status, 0) == -1)
1616 else if (WIFEXITED(status) != 0) {
1617 /* rm exit status */
1618 uspc->retval = WEXITSTATUS(status);
1620 /* rm signal status */
1621 uspc->retval = -(WTERMSIG(status));
1624 /* error from cp: exit or signal status */
1625 uspc->retval = (WIFEXITED(status) != 0) ?
1626 WEXITSTATUS(status) : -(WTERMSIG(status));
1628 memset(srcName, 0, sizeof(srcName));
1629 memset(dstName, 0, sizeof(dstName));
1633 /* unknown req type */
1642 afsdb_thread(void *rock)
1644 /* Since the AFSDB lookup handler runs as a user process,
1645 * need to drop the controlling TTY, etc.
1647 if (afsd_daemon(0, 0) == -1) {
1648 printf("Error starting AFSDB lookup handler: %s\n",
1652 AfsdbLookupHandler();
1657 daemon_thread(void *rock)
1660 /* Since the background daemon runs as a user process,
1661 * need to drop the controlling TTY, etc.
1663 if (afsd_daemon(0, 0) == -1) {
1664 printf("Error starting background daemon: %s\n",
1670 afsd_syscall(AFSOP_START_BKG, 0);
1677 rmtsysd_thread(void *rock)
1682 #endif /* !UKERNEL */
1685 * Check the command line and cacheinfo options.
1687 * @param[in] as parsed command line arguments
1689 * @note Invokes the shutdown syscall and exits with 0 when
1690 * -shutdown is given.
1693 CheckOptions(struct cmd_syndesc *as)
1695 afs_int32 code; /*Result of fork() */
1699 #ifdef AFS_SGI65_ENV
1700 struct sched_param sp;
1703 #ifdef AFS_SGI_VNODE_GLUE
1704 if (afs_init_kernel_config(-1) < 0) {
1705 printf("Can't determine NUMA configuration, not starting AFS.\n");
1710 cmd_OpenConfigFile(AFSDIR_CLIENT_CONFIG_FILE_FILEPATH);
1711 cmd_SetCommandName("afsd");
1713 /* call atoi on the appropriate parsed results */
1714 if (cmd_OptionAsInt(as, OPT_blocks, &cacheBlocks) == 0)
1717 if (cmd_OptionAsInt(as, OPT_files, &cacheFiles) == 0)
1720 if (cmd_OptionAsString(as, OPT_rootvol, &rootVolume) == 0)
1723 if (cmd_OptionAsInt(as, OPT_stat, &cacheStatEntries) == 0)
1724 sawCacheStatEntries = 1;
1726 if (cmd_OptionPresent(as, OPT_memcache)) {
1727 cacheBaseDir = NULL;
1728 sawCacheBaseDir = 1;
1729 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1732 if (cmd_OptionAsString(as, OPT_cachedir, &cacheBaseDir) == 0)
1733 sawCacheBaseDir = 1;
1735 if (cmd_OptionAsString(as, OPT_mountdir, &afsd_cacheMountDir) == 0)
1736 sawCacheMountDir = 1;
1738 cmd_OptionAsInt(as, OPT_daemons, &nDaemons);
1740 afsd_verbose = cmd_OptionPresent(as, OPT_verbose);
1742 if (cmd_OptionPresent(as, OPT_rmtsys)) {
1745 printf("-rmtsys not supported for UKERNEL\n");
1750 if (cmd_OptionPresent(as, OPT_debug)) {
1755 if (cmd_OptionAsInt(as, OPT_chunksize, &chunkSize) == 0) {
1756 if (chunkSize < 0 || chunkSize > 30) {
1758 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1763 if (cmd_OptionAsInt(as, OPT_dcache, &dCacheSize) == 0)
1766 cmd_OptionAsInt(as, OPT_volumes, &vCacheSize);
1768 if (cmd_OptionPresent(as, OPT_biods)) {
1770 #ifndef AFS_AIX32_ENV
1772 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1774 cmd_OptionAsInt(as, OPT_biods, &nBiods);
1777 cmd_OptionAsInt(as, OPT_prealloc, &preallocs);
1779 if (cmd_OptionAsString(as, OPT_confdir, &confDir) == CMD_MISSING) {
1780 confDir = strdup(AFSDIR_CLIENT_ETC_DIRPATH);
1782 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1784 if (cmd_OptionPresent(as, OPT_logfile)) {
1785 printf("afsd: Ignoring obsolete -logfile flag\n");
1788 afsd_CloseSynch = cmd_OptionPresent(as, OPT_waitclose);
1790 if (cmd_OptionPresent(as, OPT_shutdown)) {
1794 * Cold shutdown is the default
1796 printf("afsd: Shutting down all afs processes and afs state\n");
1797 code = afsd_syscall(AFSOP_SHUTDOWN, 1);
1799 printf("afsd: AFS still mounted; Not shutting down\n");
1805 enable_peer_stats = cmd_OptionPresent(as, OPT_peerstats);
1806 enable_process_stats = cmd_OptionPresent(as, OPT_processstats);
1808 if (cmd_OptionPresent(as, OPT_memallocsleep)) {
1809 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1812 enable_afsdb = cmd_OptionPresent(as, OPT_afsdb);
1813 if (cmd_OptionPresent(as, OPT_filesdir)) {
1814 /* -files_per_subdir */
1816 cmd_OptionAsInt(as, OPT_filesdir, &res);
1817 if (res < 10 || res > (1 << 30)) {
1819 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1820 as->parms[25].items->data);
1825 enable_dynroot = cmd_OptionPresent(as, OPT_dynroot);
1827 if (cmd_OptionPresent(as, OPT_fakestat)) {
1828 enable_fakestat = 2;
1830 if (cmd_OptionPresent(as, OPT_fakestatall)) {
1831 enable_fakestat = 1;
1833 if (cmd_OptionPresent(as, OPT_settime)) {
1835 printf("afsd: -settime ignored\n");
1836 printf("afsd: the OpenAFS client no longer sets the system time; "
1837 "please use NTP or\n");
1838 printf("afsd: another such system to synchronize client time\n");
1841 enable_nomount = cmd_OptionPresent(as, OPT_nomount);
1842 enable_backuptree = cmd_OptionPresent(as, OPT_backuptree);
1843 enable_rxbind = cmd_OptionPresent(as, OPT_rxbind);
1845 /* set rx_extraPackets */
1846 if (cmd_OptionPresent(as, OPT_rxpck)) {
1849 cmd_OptionAsInt(as, OPT_rxpck, &rxpck);
1850 printf("afsd: set rxpck = %d\n", rxpck);
1851 code = afsd_syscall(AFSOP_SET_RXPCK, rxpck);
1853 printf("afsd: failed to set rxpck\n");
1857 if (cmd_OptionPresent(as, OPT_splitcache)) {
1861 cmd_OptionAsString(as, OPT_splitcache, &var);
1863 if (var == NULL || ((c = strchr(var, '/')) == NULL))
1865 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1867 ropct = atoi(c + 1);
1870 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1872 enable_splitcache = 1;
1877 if (cmd_OptionPresent(as, OPT_nodynvcache)) {
1878 #ifdef AFS_MAXVCOUNT_ENV
1879 afsd_dynamic_vcaches = 0;
1881 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1885 #ifdef AFS_MAXVCOUNT_ENV
1887 /* -dynamic-vcaches */
1888 afsd_dynamic_vcaches = 1;
1892 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1895 cmd_OptionAsInt(as, OPT_rxmaxmtu, &rxmaxmtu);
1897 if (cmd_OptionPresent(as, OPT_dynrootsparse)) {
1901 cmd_OptionAsInt(as, OPT_rxmaxfrags, &rxmaxfrags);
1902 if (cmd_OptionPresent(as, OPT_inumcalc)) {
1903 cmd_OptionAsString(as, OPT_inumcalc, &inumcalc);
1905 cmd_OptionAsInt(as, OPT_volume_ttl, &volume_ttl);
1907 /* parse cacheinfo file if this is a diskcache */
1908 if (ParseCacheInfoFile()) {
1918 static char rn[] = "afsd"; /*Name of this routine */
1919 struct afsconf_dir *cdir; /* config dir */
1920 int lookupResult; /*Result of GetLocalCellName() */
1922 int code; /*Result of fork() */
1923 char *fsTypeMsg = NULL;
1924 int cacheIteration; /*How many times through cache verification */
1925 int vFilesFound; /*How many data cache files were found in sweep */
1926 int currVFile; /*Current AFS cache file number passed in */
1929 * Pull out all the configuration info for the workstation's AFS cache and
1930 * the cellular community we're willing to let our users see.
1932 cdir = afsconf_Open(confDir);
1934 printf("afsd: some file missing or bad in %s\n", confDir);
1939 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1941 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1945 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1948 if (!enable_nomount) {
1949 if (afsd_check_mount(rn, afsd_cacheMountDir)) {
1954 /* do some random computations in memcache case to get things to work
1955 * reasonably no matter which parameters you set.
1957 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1958 /* memory cache: size described either as blocks or dcache entries, but
1962 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1964 if (sawDCacheSize) {
1965 if (chunkSize == 0) {
1966 chunkSize = 13; /* 8k default chunksize for memcache */
1968 if (sawCacheBlocks) {
1970 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1974 /* compute the cache size based on # of chunks times the chunk size */
1975 i = (1 << chunkSize); /* bytes per chunk */
1976 cacheBlocks = i * dCacheSize;
1977 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1979 if (chunkSize == 0) {
1980 /* Try to autotune the memcache chunksize based on size
1981 * of memcache. This is done on the assumption that approx
1982 * 1024 chunks is suitable, it's a balance between enough
1983 * chunks to be useful and ramping up nicely when using larger
1984 * memcache to improve bulk read/write performance
1987 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1990 /* compute the dcache size from overall cache size and chunk size */
1991 if (chunkSize > 10) {
1992 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1993 } else if (chunkSize < 10) {
1994 dCacheSize = (cacheBlocks << (10 - chunkSize));
1996 dCacheSize = cacheBlocks;
1998 /* don't have to set sawDCacheSize here since it isn't overwritten
1999 * by ParseCacheInfoFile.
2003 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2005 /* kernel computes # of dcache entries as min of cacheFiles and
2006 * dCacheSize, so we now make them equal.
2008 cacheFiles = dCacheSize;
2011 * Compute the number of cache files based on cache size,
2012 * but only if -files isn't given on the command line.
2013 * Don't let # files be so small as to prevent full utilization
2014 * of the cache unless user has explicitly asked for it.
2016 if (chunkSize == 0) {
2017 /* Set chunksize to 256kB - 1MB depending on cache size */
2018 if (cacheBlocks < 500000) {
2020 } else if (cacheBlocks < 1000000) {
2028 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2030 cacheFiles = max(cacheFiles, 1000);
2032 /* Always allow more files than chunks. Presume average V-file
2033 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2034 * have a grad student write a paper). i is KILOBYTES.
2036 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2037 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2039 /* never permit more files than blocks, while leaving space for
2040 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2041 * CacheItems is 50 Bytes / file (== 1K/20)
2043 #define CACHEITMSZ (cacheFiles / 20)
2044 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2045 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2046 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2048 /* Sanity check: If the obtained number of disk cache files
2049 * is larger than the number of available (4k) disk blocks, we're
2050 * doing something wrong. Fail hard so we can fix the bug instead
2051 * of silently hiding it like before */
2053 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2055 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2056 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2059 if (cacheFiles < 100)
2060 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2064 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2067 /* This actually needs to
2069 2) not second-guess when a chunksize comes from the command line
2070 3) be less, um, small. 2^2??
2072 /* Sanity check chunkSize */
2073 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2074 chunkSize = min(chunkSize, i);
2075 chunkSize = max(chunkSize, 2);
2077 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2080 if (!sawDCacheSize) {
2081 dCacheSize = cacheFiles / 2;
2082 if (dCacheSize > 10000) {
2085 if (dCacheSize < 2000) {
2089 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2092 if (!sawCacheStatEntries) {
2093 if (chunkSize <= 13) {
2094 cacheStatEntries = dCacheSize / 4;
2095 } else if (chunkSize >= 16) {
2096 cacheStatEntries = dCacheSize * 1.5;
2098 cacheStatEntries = dCacheSize;
2101 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2105 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
2107 * Create and zero the inode table for the desired cache files.
2109 inode_for_V = calloc(cacheFiles, sizeof(AFSD_INO_T));
2110 if (inode_for_V == (AFSD_INO_T *) 0) {
2112 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2117 printf("%s: %d inode_for_V entries at %p, %lu bytes\n", rn,
2118 cacheFiles, inode_for_V,
2119 (unsigned long)cacheFiles * sizeof(AFSD_INO_T));
2122 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2124 * Set up all the pathnames we'll need for later.
2126 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2127 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2128 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2129 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2130 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2132 fsTypeMsg = CheckCacheBaseDir(cacheBaseDir);
2135 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2137 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2144 * Set up all the kernel processes needed for AFS.
2147 setpgrp(getpid(), 0);
2151 * Set the primary cell name.
2153 afsd_syscall(AFSOP_SET_THISCELL, LclCellName);
2155 /* Initialize RX daemons and services */
2157 /* initialize the rx random number generator from user space */
2159 /* rand-fortuna wants at least 128 bytes of seed; be generous. */
2160 unsigned char seedbuf[256];
2161 if (RAND_bytes(seedbuf, sizeof(seedbuf)) != 1) {
2162 printf("SEED_ENTROPY: Error retrieving seed entropy\n");
2164 afsd_syscall(AFSOP_SEED_ENTROPY, seedbuf, sizeof(seedbuf));
2165 memset(seedbuf, 0, sizeof(seedbuf));
2166 /* parse multihomed address files */
2167 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2170 code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2171 AFSDIR_CLIENT_NETINFO_FILEPATH,
2172 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2175 code = code | 0x80000000;
2176 afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2178 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2182 /* Set realtime priority for most threads to same as for biod's. */
2183 afsd_set_afsd_rtpri();
2185 /* Start listener, then callback listener. Lastly, start rx event daemon.
2186 * Change in ordering is so that Linux port has socket fd in listener
2188 * preallocs are passed for both listener and callback server. Only
2189 * the one which actually does the initialization uses them though.
2191 if (preallocs < cacheStatEntries + 50)
2192 preallocs = cacheStatEntries + 50;
2193 #ifdef RXK_LISTENER_ENV
2195 printf("%s: Forking rx listener daemon.\n", rn);
2196 # ifdef AFS_SUN510_ENV
2197 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2198 enable_peer_stats, enable_process_stats);
2199 # else /* !AFS_SUN510_ENV */
2200 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2201 enable_process_stats);
2202 # endif /* !AFS_SUN510_ENV */
2205 printf("%s: Forking rx callback listener.\n", rn);
2206 #ifndef RXK_LISTENER_ENV
2207 fork_rx_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, enable_peer_stats,
2208 enable_process_stats);
2210 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, 0, 0);
2212 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV) || defined(RXK_UPCALL_ENV)
2214 printf("%s: Forking rxevent daemon.\n", rn);
2215 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2220 printf("%s: Forking AFSDB lookup handler.\n", rn);
2221 afsd_fork(0, afsdb_thread, NULL);
2223 code = afsd_syscall(AFSOP_BASIC_INIT, 1);
2225 printf("%s: Error %d in basic initialization.\n", rn, code);
2230 * Tell the kernel some basic information about the workstation's cache.
2234 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2235 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2237 memset(&cparams, '\0', sizeof(cparams));
2238 cparams.cacheScaches = cacheStatEntries;
2239 cparams.cacheFiles = cacheFiles;
2240 cparams.cacheBlocks = cacheBlocks;
2241 cparams.cacheDcaches = dCacheSize;
2242 cparams.cacheVolumes = vCacheSize;
2243 cparams.chunkSize = chunkSize;
2244 cparams.setTimeFlag = 0;
2245 cparams.memCacheFlag = cacheFlags;
2246 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2247 code = afsd_syscall(AFSOP_CACHEINIT, &cparams);
2249 printf("%s: Error %d during cache init.\n", rn, code);
2253 /* do it before we init the cache inodes */
2254 if (enable_splitcache) {
2255 afsd_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2256 afsd_syscall(AFSOP_BUCKETPCT, 2, ropct);
2259 if (afsd_CloseSynch)
2260 afsd_syscall(AFSOP_CLOSEWAIT);
2263 * Sweep the workstation AFS cache directory, remembering the inodes of
2264 * valid files and deleting extraneous files. Keep sweeping until we
2265 * have the right number of data cache files or we've swept too many
2268 * This also creates files in the cache directory like VolumeItems and
2269 * CellItems, and thus must be ran before those are sent to the kernel.
2272 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2274 /* Memory-cache based system doesn't need any of this */
2275 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2278 if (SweepAFSCache(&vFilesFound)) {
2279 printf("%s: Error on sweep %d of workstation AFS cache \
2280 directory.\n", rn, cacheIteration);
2285 ("%s: %d out of %d data cache files found in sweep %d.\n",
2286 rn, vFilesFound, cacheFiles, cacheIteration);
2287 } while ((vFilesFound < cacheFiles)
2288 && (cacheIteration < MAX_CACHE_LOOPS));
2289 } else if (afsd_verbose)
2290 printf("%s: Using memory cache, not swept\n", rn);
2293 * Pass the kernel the name of the workstation cache file holding the
2297 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2299 /* once again, meaningless for a memory-based cache. */
2300 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2301 afsd_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2304 * Pass the kernel the name of the workstation cache file holding the
2307 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2309 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2310 fullpn_CellInfoFile);
2311 afsd_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2316 printf("%s: Setting rxmaxfrags in kernel = %d\n", rn, rxmaxfrags);
2317 code = afsd_syscall(AFSOP_SET_RXMAXFRAGS, rxmaxfrags);
2319 printf("%s: Error seting rxmaxfrags\n", rn);
2324 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2325 code = afsd_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2327 printf("%s: Error seting rxmaxmtu\n", rn);
2330 if (inumcalc != NULL) {
2331 if (strcmp(inumcalc, "compat") == 0) {
2333 printf("%s: Setting original inode number calculation method in kernel.\n",
2336 code = afsd_syscall(AFSOP_SET_INUMCALC, AFS_INUMCALC_COMPAT);
2338 printf("%s: Error setting inode calculation method: code=%d.\n",
2341 } else if (strcmp(inumcalc, "md5") == 0) {
2343 printf("%s: Setting md5 digest inode number calculation in kernel.\n",
2346 code = afsd_syscall(AFSOP_SET_INUMCALC, AFS_INUMCALC_MD5);
2348 printf("%s: Error setting inode calculation method: code=%d.\n",
2352 printf("%s: Unknown value for -inumcalc: %s."
2353 "Using default inode calculation method.\n", rn, inumcalc);
2357 if (enable_dynroot) {
2359 printf("%s: Enabling dynroot support in kernel%s.\n", rn,
2360 (enable_dynroot==2)?", not showing cells.":"");
2361 code = afsd_syscall(AFSOP_SET_DYNROOT, 1);
2363 printf("%s: Error enabling dynroot support.\n", rn);
2366 if (enable_fakestat) {
2368 printf("%s: Enabling fakestat support in kernel%s.\n", rn,
2369 (enable_fakestat==1)?" for all mountpoints."
2370 :" for crosscell mountpoints");
2371 code = afsd_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2373 printf("%s: Error enabling fakestat support.\n", rn);
2376 if (enable_backuptree) {
2378 printf("%s: Enabling backup tree support in kernel.\n", rn);
2379 code = afsd_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2381 printf("%s: Error enabling backup tree support.\n", rn);
2385 * Tell the kernel about each cell in the configuration.
2387 afsconf_CellApply(cdir, ConfigCell, NULL);
2388 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2390 /* Initialize AFS daemon threads. */
2392 printf("%s: Forking AFS daemon.\n", rn);
2393 fork_syscall(rn, AFSOP_START_AFS);
2396 printf("%s: Forking Check Server Daemon.\n", rn);
2397 fork_syscall(rn, AFSOP_START_CS);
2400 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2401 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2402 /* Add one because for sgi we always "steal" the first daemon for a
2403 * different task if we only have a 4K stack.
2407 for (i = 0; i < nDaemons; i++) {
2408 afsd_fork(0, daemon_thread, NULL);
2410 #ifdef AFS_AIX32_ENV
2412 nBiods = nDaemons * 2;
2415 for (i = 0; i < nBiods; i++) {
2416 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2421 * If the root volume has been explicitly set, tell the kernel.
2425 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2427 afsd_syscall(AFSOP_ROOTVOLUME, rootVolume);
2430 if (volume_ttl != 0) {
2432 printf("%s: Calling AFSOP_SET_VOLUME_TTL with '%d'\n", rn, volume_ttl);
2433 code = afsd_syscall(AFSOP_SET_VOLUME_TTL, volume_ttl);
2434 if (code == EFAULT) {
2435 if (volume_ttl < AFS_MIN_VOLUME_TTL)
2436 printf("%s: Failed to set volume ttl to %d seconds; "
2437 "value is too low.\n", rn, volume_ttl);
2438 else if (volume_ttl > AFS_MAX_VOLUME_TTL)
2439 printf("%s: Failed to set volume ttl to %d seconds; "
2440 "value is too high.\n", rn, volume_ttl);
2442 printf("%s: Failed to set volume ttl to %d seconds; "
2443 "value is out of range.\n", rn, volume_ttl);
2444 } else if (code != 0) {
2445 printf("%s: Failed to set volume ttl to %d seconds; "
2446 "code=%d.\n", rn, volume_ttl, code);
2451 * Pass the kernel the name of the workstation cache file holding the
2452 * volume information.
2455 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2456 fullpn_VolInfoFile);
2457 /* once again, meaningless for a memory-based cache. */
2458 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2459 afsd_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2462 * Give the kernel the names of the AFS files cached on the workstation's
2465 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2466 int nocachefile = 0;
2469 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2470 rn, cacheFiles, cacheBaseDir);
2471 /* ... and again ... */
2472 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2474 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2475 code = afsd_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2477 if (currVFile == 0) {
2480 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2481 rn, cacheFiles, cacheBaseDir);
2485 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2492 /* fall through to setup-by-inode */
2494 #if defined(AFS_SGI62_ENV) || !(defined(AFS_LINUX26_ENV) || defined(AFS_CACHE_VNODE_PATH))
2495 afsd_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2498 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2506 * All the necessary info has been passed into the kernel to run an AFS
2507 * system. Give the kernel our go-ahead.
2510 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2512 afsd_syscall(AFSOP_GO, 0);
2515 * At this point, we have finished passing the kernel all the info
2516 * it needs to set up the AFS. Mount the AFS root.
2518 printf("%s: All AFS daemons started.\n", rn);
2521 printf("%s: Forking trunc-cache daemon.\n", rn);
2522 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2524 if (!enable_nomount) {
2525 afsd_mount_afs(rn, afsd_cacheMountDir);
2531 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2532 afsd_fork(0, rmtsysd_thread, NULL);
2533 code = afsd_syscall(AFSOP_SET_RMTSYS_FLAG, 1);
2535 printf("%s: Error enabling rmtsys support.\n", rn);
2537 #endif /* !UKERNEL */
2539 * Exit successfully.
2545 #include "AFS_component_version_number.c"
2551 struct cmd_syndesc *ts;
2553 ts = cmd_CreateSyntax(NULL, NULL, NULL, 0, "start AFS");
2556 cmd_AddParmAtOffset(ts, OPT_blocks, "-blocks", CMD_SINGLE,
2557 CMD_OPTIONAL, "1024 byte blocks in cache");
2558 cmd_AddParmAtOffset(ts, OPT_files, "-files", CMD_SINGLE,
2559 CMD_OPTIONAL, "files in cache");
2560 cmd_AddParmAtOffset(ts, OPT_rootvol, "-rootvol", CMD_SINGLE,
2561 CMD_OPTIONAL, "name of AFS root volume");
2562 cmd_AddParmAtOffset(ts, OPT_stat, "-stat", CMD_SINGLE,
2563 CMD_OPTIONAL, "number of stat entries");
2564 cmd_AddParmAtOffset(ts, OPT_memcache, "-memcache", CMD_FLAG,
2565 CMD_OPTIONAL, "run diskless");
2566 cmd_AddParmAtOffset(ts, OPT_cachedir, "-cachedir", CMD_SINGLE,
2567 CMD_OPTIONAL, "cache directory");
2568 cmd_AddParmAtOffset(ts, OPT_mountdir, "-mountdir", CMD_SINGLE,
2569 CMD_OPTIONAL, "mount location");
2570 cmd_AddParmAtOffset(ts, OPT_daemons, "-daemons", CMD_SINGLE,
2571 CMD_OPTIONAL, "number of daemons to use");
2572 cmd_AddParmAtOffset(ts, OPT_nosettime, "-nosettime", CMD_FLAG,
2573 CMD_OPTIONAL, "don't set the time");
2574 cmd_AddParmAtOffset(ts, OPT_verbose, "-verbose", CMD_FLAG,
2575 CMD_OPTIONAL, "display lots of information");
2576 cmd_AddParmAtOffset(ts, OPT_rmtsys, "-rmtsys", CMD_FLAG,
2577 CMD_OPTIONAL, "start NFS rmtsysd program");
2578 cmd_AddParmAtOffset(ts, OPT_debug, "-debug", CMD_FLAG,
2579 CMD_OPTIONAL, "display debug info");
2580 cmd_AddParmAtOffset(ts, OPT_chunksize, "-chunksize", CMD_SINGLE,
2581 CMD_OPTIONAL, "log(2) of chunk size");
2582 cmd_AddParmAtOffset(ts, OPT_dcache, "-dcache", CMD_SINGLE,
2583 CMD_OPTIONAL, "number of dcache entries");
2584 cmd_AddParmAtOffset(ts, OPT_volumes, "-volumes", CMD_SINGLE,
2585 CMD_OPTIONAL, "number of volume entries");
2586 cmd_AddParmAtOffset(ts, OPT_biods, "-biods", CMD_SINGLE,
2587 CMD_OPTIONAL, "number of bkg I/O daemons (aix vm)");
2588 cmd_AddParmAtOffset(ts, OPT_prealloc, "-prealloc", CMD_SINGLE,
2589 CMD_OPTIONAL, "number of 'small' preallocated blocks");
2590 cmd_AddParmAtOffset(ts, OPT_confdir, "-confdir", CMD_SINGLE,
2591 CMD_OPTIONAL, "configuration directory");
2592 cmd_AddParmAtOffset(ts, OPT_logfile, "-logfile", CMD_SINGLE,
2593 CMD_OPTIONAL, "Place to keep the CM log");
2594 cmd_AddParmAtOffset(ts, OPT_waitclose, "-waitclose", CMD_FLAG,
2595 CMD_OPTIONAL, "make close calls synchronous");
2596 cmd_AddParmAtOffset(ts, OPT_shutdown, "-shutdown", CMD_FLAG,
2597 CMD_OPTIONAL, "Shutdown all afs state");
2598 cmd_AddParmAtOffset(ts, OPT_peerstats, "-enable_peer_stats", CMD_FLAG,
2599 CMD_OPTIONAL, "Collect rpc statistics by peer");
2600 cmd_AddParmAtOffset(ts, OPT_processstats, "-enable_process_stats",
2601 CMD_FLAG, CMD_OPTIONAL, "Collect rpc statistics for this process");
2602 cmd_AddParmAtOffset(ts, OPT_memallocsleep, "-mem_alloc_sleep",
2603 CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2604 "Allow sleeps when allocating memory cache");
2605 cmd_AddParmAtOffset(ts, OPT_afsdb, "-afsdb", CMD_FLAG,
2606 CMD_OPTIONAL, "Enable AFSDB support");
2607 cmd_AddParmAtOffset(ts, OPT_filesdir, "-files_per_subdir", CMD_SINGLE,
2609 "log(2) of the number of cache files per "
2610 "cache subdirectory");
2611 cmd_AddParmAtOffset(ts, OPT_dynroot, "-dynroot", CMD_FLAG,
2612 CMD_OPTIONAL, "Enable dynroot support");
2613 cmd_AddParmAtOffset(ts, OPT_fakestat, "-fakestat", CMD_FLAG,
2615 "Enable fakestat support for cross-cell mounts");
2616 cmd_AddParmAtOffset(ts, OPT_fakestatall, "-fakestat-all", CMD_FLAG,
2618 "Enable fakestat support for all mounts");
2619 cmd_AddParmAtOffset(ts, OPT_nomount, "-nomount", CMD_FLAG,
2620 CMD_OPTIONAL, "Do not mount AFS");
2621 cmd_AddParmAtOffset(ts, OPT_backuptree, "-backuptree", CMD_FLAG,
2623 "Prefer backup volumes for mountpoints in backup "
2625 cmd_AddParmAtOffset(ts, OPT_rxbind, "-rxbind", CMD_FLAG,
2627 "Bind the Rx socket (one interface only)");
2628 cmd_AddParmAtOffset(ts, OPT_settime, "-settime", CMD_FLAG,
2629 CMD_OPTIONAL, "set the time");
2630 cmd_AddParmAtOffset(ts, OPT_rxpck, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2631 "set rx_extraPackets to this value");
2632 cmd_AddParmAtOffset(ts, OPT_splitcache, "-splitcache", CMD_SINGLE,
2634 "Percentage RW versus RO in cache (specify as 60/40)");
2635 cmd_AddParmAtOffset(ts, OPT_nodynvcache, "-disable-dynamic-vcaches",
2636 CMD_FLAG, CMD_OPTIONAL,
2637 "disable stat/vcache cache growing as needed");
2638 cmd_AddParmAtOffset(ts, OPT_rxmaxmtu, "-rxmaxmtu", CMD_SINGLE,
2639 CMD_OPTIONAL, "set rx max MTU to use");
2640 cmd_AddParmAtOffset(ts, OPT_dynrootsparse, "-dynroot-sparse", CMD_FLAG,
2642 "Enable dynroot support with minimal cell list");
2643 cmd_AddParmAtOffset(ts, OPT_rxmaxfrags, "-rxmaxfrags", CMD_SINGLE,
2645 "Set the maximum number of UDP fragments Rx should "
2646 "send/receive per Rx packet");
2647 cmd_AddParmAtOffset(ts, OPT_inumcalc, "-inumcalc", CMD_SINGLE, CMD_OPTIONAL,
2648 "Set inode number calculation method");
2649 cmd_AddParmAtOffset(ts, OPT_volume_ttl, "-volume-ttl", CMD_SINGLE,
2651 "Set the vldb cache timeout value in seconds.");
2655 * Parse and check the command line options.
2657 * @note The -shutdown command is handled in CheckOptions().
2660 afsd_parse(int argc, char **argv)
2662 struct cmd_syndesc *ts = NULL;
2665 code = cmd_Parse(argc, argv, &ts);
2669 code = CheckOptions(ts);
2670 cmd_FreeOptions(&ts);
2675 * entry point for calling a syscall from another proc/thread.
2677 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
2680 * @retval NULL always
2683 call_syscall_thread(void *rock)
2685 struct afsd_syscall_args *args = rock;
2689 afsd_set_rx_rtpri();
2692 code = afsd_call_syscall(args);
2693 if (code && args->syscall == AFSOP_START_CS) {
2694 printf("%s: No check server daemon in client.\n", args->rn);
2703 afsd_syscall_populate(struct afsd_syscall_args *args, int syscall, va_list ap)
2705 afsd_syscall_param_t *params;
2707 memset(args, 0, sizeof(struct afsd_syscall_args));
2709 args->syscall = syscall;
2710 params = args->params;
2713 case AFSOP_RXEVENT_DAEMON:
2714 case AFSOP_CLOSEWAIT:
2715 case AFSOP_START_AFS:
2716 case AFSOP_START_CS:
2717 case AFSOP_START_TRUNCDAEMON:
2719 case AFSOP_START_BKG:
2720 case AFSOP_SHUTDOWN:
2721 case AFSOP_SET_RXPCK:
2722 case AFSOP_BASIC_INIT:
2723 case AFSOP_SET_RXMAXFRAGS:
2724 case AFSOP_SET_RXMAXMTU:
2725 case AFSOP_SET_DYNROOT:
2726 case AFSOP_SET_FAKESTAT:
2727 case AFSOP_SET_BACKUPTREE:
2728 case AFSOP_BUCKETPCT:
2730 case AFSOP_SET_RMTSYS_FLAG:
2731 case AFSOP_SET_INUMCALC:
2732 case AFSOP_SET_VOLUME_TTL:
2733 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2735 case AFSOP_SET_THISCELL:
2736 case AFSOP_ROOTVOLUME:
2737 case AFSOP_VOLUMEINFO:
2738 case AFSOP_CACHEFILE:
2739 case AFSOP_CACHEINFO:
2740 case AFSOP_CACHEINIT:
2741 case AFSOP_CELLINFO:
2742 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2744 case AFSOP_ADDCELLALIAS:
2745 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2746 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2748 case AFSOP_AFSDB_HANDLER:
2749 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2750 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2751 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2753 case AFSOP_BKG_HANDLER:
2754 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2755 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2756 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2758 case AFSOP_RXLISTENER_DAEMON:
2759 case AFSOP_START_RXCALLBACK:
2760 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2761 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2762 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2764 case AFSOP_ADVISEADDR:
2765 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2766 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2767 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2768 params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2770 case AFSOP_ADDCELL2:
2771 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2772 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2773 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, afs_int32)));
2774 params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2776 case AFSOP_CACHEINODE:
2777 #if defined AFS_SGI62_ENV
2779 afs_int64 tmp = va_arg(ap, afs_int64);
2780 params[0] = CAST_SYSCALL_PARAM((afs_uint32)(tmp >> 32));
2781 params[1] = CAST_SYSCALL_PARAM((afs_uint32)(tmp & 0xffffffff));
2784 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32)));
2787 case AFSOP_SEED_ENTROPY:
2788 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2789 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32)));
2792 printf("Unknown syscall enountered: %d\n", syscall);
2798 * common code for calling a syscall in another proc/thread.
2800 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
2801 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
2802 * let it run in the background
2803 * @param[in] rn the name of the running program
2804 * @param[in] syscall syscall to run
2807 fork_syscall_impl(int rx, int wait, const char *rn, int syscall, va_list ap)
2809 struct afsd_syscall_args *args;
2811 args = malloc(sizeof(*args));
2812 afsd_syscall_populate(args, syscall, ap);
2816 afsd_fork(wait, call_syscall_thread, args);
2820 * call a syscall in another process or thread.
2823 fork_syscall(const char *rn, int syscall, ...)
2827 va_start(ap, syscall);
2828 fork_syscall_impl(0, 0, rn, syscall, ap);
2833 * call a syscall in another process or thread, and give it RX priority.
2836 fork_rx_syscall(const char *rn, int syscall, ...)
2840 va_start(ap, syscall);
2841 fork_syscall_impl(1, 0, rn, syscall, ap);
2845 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
2847 * call a syscall in another process or thread, give it RX priority, and wait
2848 * for it to finish before returning.
2851 fork_rx_syscall_wait(const char *rn, int syscall, ...)
2855 va_start(ap, syscall);
2856 fork_syscall_impl(1, 1, rn, syscall, ap);
2859 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */
2862 afsd_syscall(int syscall, ...)
2865 struct afsd_syscall_args args;
2867 va_start(ap, syscall);
2868 afsd_syscall_populate(&args, syscall, ap);
2871 return afsd_call_syscall(&args);