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? */
1558 * Before AFS_USPC_SHUTDOWN existed, the kernel module used to
1559 * indicate it was shutting down by returning -2. Treat this
1560 * like a AFS_USPC_SHUTDOWN, in case we're running with an
1561 * older kernel module.
1571 switch (uspc->reqtype) {
1572 case AFS_USPC_SHUTDOWN:
1573 /* Client is shutting down */
1577 snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1578 uspc->req.umv.sCell, uspc->req.umv.sVolume,
1579 uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName);
1580 snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1581 uspc->req.umv.dCell, uspc->req.umv.dVolume,
1582 uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName);
1583 if ((child = fork()) == 0) {
1584 /* first child does cp; second, rm. mv would re-enter. */
1586 switch (uspc->req.umv.idtype) {
1588 if (setuid(uspc->req.umv.id) != 0) {
1594 break; /* notreached */
1596 execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath,
1597 dstpath, (char *) NULL);
1599 if (child == (pid_t) -1) {
1604 if (waitpid(child, &status, 0) == -1)
1606 else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) {
1607 if ((child = fork()) == 0) {
1608 switch (uspc->req.umv.idtype) {
1610 if (setuid(uspc->req.umv.id) != 0) {
1616 break; /* notreached */
1618 execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--",
1619 srcpath, (char *) NULL);
1621 if (child == (pid_t) -1) {
1625 if (waitpid(child, &status, 0) == -1)
1627 else if (WIFEXITED(status) != 0) {
1628 /* rm exit status */
1629 uspc->retval = WEXITSTATUS(status);
1631 /* rm signal status */
1632 uspc->retval = -(WTERMSIG(status));
1635 /* error from cp: exit or signal status */
1636 uspc->retval = (WIFEXITED(status) != 0) ?
1637 WEXITSTATUS(status) : -(WTERMSIG(status));
1639 memset(srcName, 0, sizeof(srcName));
1640 memset(dstName, 0, sizeof(dstName));
1644 /* unknown req type */
1653 afsdb_thread(void *rock)
1655 /* Since the AFSDB lookup handler runs as a user process,
1656 * need to drop the controlling TTY, etc.
1658 if (afsd_daemon(0, 0) == -1) {
1659 printf("Error starting AFSDB lookup handler: %s\n",
1663 AfsdbLookupHandler();
1668 daemon_thread(void *rock)
1671 /* Since the background daemon runs as a user process,
1672 * need to drop the controlling TTY, etc.
1674 if (afsd_daemon(0, 0) == -1) {
1675 printf("Error starting background daemon: %s\n",
1681 afsd_syscall(AFSOP_START_BKG, 0);
1688 rmtsysd_thread(void *rock)
1693 #endif /* !UKERNEL */
1696 * Check the command line and cacheinfo options.
1698 * @param[in] as parsed command line arguments
1700 * @note Invokes the shutdown syscall and exits with 0 when
1701 * -shutdown is given.
1704 CheckOptions(struct cmd_syndesc *as)
1706 afs_int32 code; /*Result of fork() */
1710 #ifdef AFS_SGI65_ENV
1711 struct sched_param sp;
1714 #ifdef AFS_SGI_VNODE_GLUE
1715 if (afs_init_kernel_config(-1) < 0) {
1716 printf("Can't determine NUMA configuration, not starting AFS.\n");
1721 cmd_OpenConfigFile(AFSDIR_CLIENT_CONFIG_FILE_FILEPATH);
1722 cmd_SetCommandName("afsd");
1724 /* call atoi on the appropriate parsed results */
1725 if (cmd_OptionAsInt(as, OPT_blocks, &cacheBlocks) == 0)
1728 if (cmd_OptionAsInt(as, OPT_files, &cacheFiles) == 0)
1731 if (cmd_OptionAsString(as, OPT_rootvol, &rootVolume) == 0)
1734 if (cmd_OptionAsInt(as, OPT_stat, &cacheStatEntries) == 0)
1735 sawCacheStatEntries = 1;
1737 if (cmd_OptionPresent(as, OPT_memcache)) {
1738 cacheBaseDir = NULL;
1739 sawCacheBaseDir = 1;
1740 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1743 if (cmd_OptionAsString(as, OPT_cachedir, &cacheBaseDir) == 0)
1744 sawCacheBaseDir = 1;
1746 if (cmd_OptionAsString(as, OPT_mountdir, &afsd_cacheMountDir) == 0)
1747 sawCacheMountDir = 1;
1749 cmd_OptionAsInt(as, OPT_daemons, &nDaemons);
1751 afsd_verbose = cmd_OptionPresent(as, OPT_verbose);
1753 if (cmd_OptionPresent(as, OPT_rmtsys)) {
1756 printf("-rmtsys not supported for UKERNEL\n");
1761 if (cmd_OptionPresent(as, OPT_debug)) {
1766 if (cmd_OptionAsInt(as, OPT_chunksize, &chunkSize) == 0) {
1767 if (chunkSize < 0 || chunkSize > 30) {
1769 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1774 if (cmd_OptionAsInt(as, OPT_dcache, &dCacheSize) == 0)
1777 cmd_OptionAsInt(as, OPT_volumes, &vCacheSize);
1779 if (cmd_OptionPresent(as, OPT_biods)) {
1781 #ifndef AFS_AIX32_ENV
1783 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1785 cmd_OptionAsInt(as, OPT_biods, &nBiods);
1788 cmd_OptionAsInt(as, OPT_prealloc, &preallocs);
1790 if (cmd_OptionAsString(as, OPT_confdir, &confDir) == CMD_MISSING) {
1791 confDir = strdup(AFSDIR_CLIENT_ETC_DIRPATH);
1793 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1795 if (cmd_OptionPresent(as, OPT_logfile)) {
1796 printf("afsd: Ignoring obsolete -logfile flag\n");
1799 afsd_CloseSynch = cmd_OptionPresent(as, OPT_waitclose);
1801 if (cmd_OptionPresent(as, OPT_shutdown)) {
1805 * Cold shutdown is the default
1807 printf("afsd: Shutting down all afs processes and afs state\n");
1808 code = afsd_syscall(AFSOP_SHUTDOWN, 1);
1810 printf("afsd: AFS still mounted; Not shutting down\n");
1816 enable_peer_stats = cmd_OptionPresent(as, OPT_peerstats);
1817 enable_process_stats = cmd_OptionPresent(as, OPT_processstats);
1819 if (cmd_OptionPresent(as, OPT_memallocsleep)) {
1820 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1823 enable_afsdb = cmd_OptionPresent(as, OPT_afsdb);
1824 if (cmd_OptionPresent(as, OPT_filesdir)) {
1825 /* -files_per_subdir */
1827 cmd_OptionAsInt(as, OPT_filesdir, &res);
1828 if (res < 10 || res > (1 << 30)) {
1830 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1831 as->parms[25].items->data);
1836 enable_dynroot = cmd_OptionPresent(as, OPT_dynroot);
1838 if (cmd_OptionPresent(as, OPT_fakestat)) {
1839 enable_fakestat = 2;
1841 if (cmd_OptionPresent(as, OPT_fakestatall)) {
1842 enable_fakestat = 1;
1844 if (cmd_OptionPresent(as, OPT_settime)) {
1846 printf("afsd: -settime ignored\n");
1847 printf("afsd: the OpenAFS client no longer sets the system time; "
1848 "please use NTP or\n");
1849 printf("afsd: another such system to synchronize client time\n");
1852 enable_nomount = cmd_OptionPresent(as, OPT_nomount);
1853 enable_backuptree = cmd_OptionPresent(as, OPT_backuptree);
1854 enable_rxbind = cmd_OptionPresent(as, OPT_rxbind);
1856 /* set rx_extraPackets */
1857 if (cmd_OptionPresent(as, OPT_rxpck)) {
1860 cmd_OptionAsInt(as, OPT_rxpck, &rxpck);
1861 printf("afsd: set rxpck = %d\n", rxpck);
1862 code = afsd_syscall(AFSOP_SET_RXPCK, rxpck);
1864 printf("afsd: failed to set rxpck\n");
1868 if (cmd_OptionPresent(as, OPT_splitcache)) {
1872 cmd_OptionAsString(as, OPT_splitcache, &var);
1874 if (var == NULL || ((c = strchr(var, '/')) == NULL))
1876 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1878 ropct = atoi(c + 1);
1881 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1883 enable_splitcache = 1;
1888 if (cmd_OptionPresent(as, OPT_nodynvcache)) {
1889 #ifdef AFS_MAXVCOUNT_ENV
1890 afsd_dynamic_vcaches = 0;
1892 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1896 #ifdef AFS_MAXVCOUNT_ENV
1898 /* -dynamic-vcaches */
1899 afsd_dynamic_vcaches = 1;
1903 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1906 cmd_OptionAsInt(as, OPT_rxmaxmtu, &rxmaxmtu);
1908 if (cmd_OptionPresent(as, OPT_dynrootsparse)) {
1912 cmd_OptionAsInt(as, OPT_rxmaxfrags, &rxmaxfrags);
1913 if (cmd_OptionPresent(as, OPT_inumcalc)) {
1914 cmd_OptionAsString(as, OPT_inumcalc, &inumcalc);
1916 cmd_OptionAsInt(as, OPT_volume_ttl, &volume_ttl);
1918 /* parse cacheinfo file if this is a diskcache */
1919 if (ParseCacheInfoFile()) {
1929 static char rn[] = "afsd"; /*Name of this routine */
1930 struct afsconf_dir *cdir; /* config dir */
1931 int lookupResult; /*Result of GetLocalCellName() */
1933 int code; /*Result of fork() */
1934 char *fsTypeMsg = NULL;
1935 int cacheIteration; /*How many times through cache verification */
1936 int vFilesFound; /*How many data cache files were found in sweep */
1937 int currVFile; /*Current AFS cache file number passed in */
1940 * Pull out all the configuration info for the workstation's AFS cache and
1941 * the cellular community we're willing to let our users see.
1943 cdir = afsconf_Open(confDir);
1945 printf("afsd: some file missing or bad in %s\n", confDir);
1950 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1952 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1956 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1959 if (!enable_nomount) {
1960 if (afsd_check_mount(rn, afsd_cacheMountDir)) {
1965 /* do some random computations in memcache case to get things to work
1966 * reasonably no matter which parameters you set.
1968 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1969 /* memory cache: size described either as blocks or dcache entries, but
1973 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1975 if (sawDCacheSize) {
1976 if (chunkSize == 0) {
1977 chunkSize = 13; /* 8k default chunksize for memcache */
1979 if (sawCacheBlocks) {
1981 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1985 /* compute the cache size based on # of chunks times the chunk size */
1986 i = (1 << chunkSize); /* bytes per chunk */
1987 cacheBlocks = i * dCacheSize;
1988 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1990 if (chunkSize == 0) {
1991 /* Try to autotune the memcache chunksize based on size
1992 * of memcache. This is done on the assumption that approx
1993 * 1024 chunks is suitable, it's a balance between enough
1994 * chunks to be useful and ramping up nicely when using larger
1995 * memcache to improve bulk read/write performance
1998 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
2001 /* compute the dcache size from overall cache size and chunk size */
2002 if (chunkSize > 10) {
2003 dCacheSize = (cacheBlocks >> (chunkSize - 10));
2004 } else if (chunkSize < 10) {
2005 dCacheSize = (cacheBlocks << (10 - chunkSize));
2007 dCacheSize = cacheBlocks;
2009 /* don't have to set sawDCacheSize here since it isn't overwritten
2010 * by ParseCacheInfoFile.
2014 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2016 /* kernel computes # of dcache entries as min of cacheFiles and
2017 * dCacheSize, so we now make them equal.
2019 cacheFiles = dCacheSize;
2022 * Compute the number of cache files based on cache size,
2023 * but only if -files isn't given on the command line.
2024 * Don't let # files be so small as to prevent full utilization
2025 * of the cache unless user has explicitly asked for it.
2027 if (chunkSize == 0) {
2028 /* Set chunksize to 256kB - 1MB depending on cache size */
2029 if (cacheBlocks < 500000) {
2031 } else if (cacheBlocks < 1000000) {
2039 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2041 cacheFiles = max(cacheFiles, 1000);
2043 /* Always allow more files than chunks. Presume average V-file
2044 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2045 * have a grad student write a paper). i is KILOBYTES.
2047 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2048 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2050 /* never permit more files than blocks, while leaving space for
2051 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2052 * CacheItems is 50 Bytes / file (== 1K/20)
2054 #define CACHEITMSZ (cacheFiles / 20)
2055 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2056 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2057 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2059 /* Sanity check: If the obtained number of disk cache files
2060 * is larger than the number of available (4k) disk blocks, we're
2061 * doing something wrong. Fail hard so we can fix the bug instead
2062 * of silently hiding it like before */
2064 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2066 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2067 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2070 if (cacheFiles < 100)
2071 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2075 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2078 /* This actually needs to
2080 2) not second-guess when a chunksize comes from the command line
2081 3) be less, um, small. 2^2??
2083 /* Sanity check chunkSize */
2084 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2085 chunkSize = min(chunkSize, i);
2086 chunkSize = max(chunkSize, 2);
2088 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2091 if (!sawDCacheSize) {
2092 dCacheSize = cacheFiles / 2;
2093 if (dCacheSize > 10000) {
2096 if (dCacheSize < 2000) {
2100 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2103 if (!sawCacheStatEntries) {
2104 if (chunkSize <= 13) {
2105 cacheStatEntries = dCacheSize / 4;
2106 } else if (chunkSize >= 16) {
2107 cacheStatEntries = dCacheSize * 1.5;
2109 cacheStatEntries = dCacheSize;
2112 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2116 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
2118 * Create and zero the inode table for the desired cache files.
2120 inode_for_V = calloc(cacheFiles, sizeof(AFSD_INO_T));
2121 if (inode_for_V == (AFSD_INO_T *) 0) {
2123 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2128 printf("%s: %d inode_for_V entries at %p, %lu bytes\n", rn,
2129 cacheFiles, inode_for_V,
2130 (unsigned long)cacheFiles * sizeof(AFSD_INO_T));
2133 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2135 * Set up all the pathnames we'll need for later.
2137 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2138 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2139 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2140 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2141 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2143 fsTypeMsg = CheckCacheBaseDir(cacheBaseDir);
2146 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2148 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2155 * Set up all the kernel processes needed for AFS.
2158 setpgrp(getpid(), 0);
2162 * Set the primary cell name.
2164 afsd_syscall(AFSOP_SET_THISCELL, LclCellName);
2166 /* Initialize RX daemons and services */
2168 /* initialize the rx random number generator from user space */
2170 /* rand-fortuna wants at least 128 bytes of seed; be generous. */
2171 unsigned char seedbuf[256];
2172 if (RAND_bytes(seedbuf, sizeof(seedbuf)) != 1) {
2173 printf("SEED_ENTROPY: Error retrieving seed entropy\n");
2175 afsd_syscall(AFSOP_SEED_ENTROPY, seedbuf, sizeof(seedbuf));
2176 memset(seedbuf, 0, sizeof(seedbuf));
2177 /* parse multihomed address files */
2178 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2181 code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2182 AFSDIR_CLIENT_NETINFO_FILEPATH,
2183 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2186 code = code | 0x80000000;
2187 afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2189 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2193 /* Set realtime priority for most threads to same as for biod's. */
2194 afsd_set_afsd_rtpri();
2196 /* Start listener, then callback listener. Lastly, start rx event daemon.
2197 * Change in ordering is so that Linux port has socket fd in listener
2199 * preallocs are passed for both listener and callback server. Only
2200 * the one which actually does the initialization uses them though.
2202 if (preallocs < cacheStatEntries + 50)
2203 preallocs = cacheStatEntries + 50;
2204 #ifdef RXK_LISTENER_ENV
2206 printf("%s: Forking rx listener daemon.\n", rn);
2207 # ifdef AFS_SUN510_ENV
2208 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2209 enable_peer_stats, enable_process_stats);
2210 # else /* !AFS_SUN510_ENV */
2211 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2212 enable_process_stats);
2213 # endif /* !AFS_SUN510_ENV */
2216 printf("%s: Forking rx callback listener.\n", rn);
2217 #ifndef RXK_LISTENER_ENV
2218 fork_rx_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, enable_peer_stats,
2219 enable_process_stats);
2221 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, 0, 0);
2223 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV) || defined(RXK_UPCALL_ENV)
2225 printf("%s: Forking rxevent daemon.\n", rn);
2226 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2231 printf("%s: Forking AFSDB lookup handler.\n", rn);
2232 afsd_fork(0, afsdb_thread, NULL);
2234 code = afsd_syscall(AFSOP_BASIC_INIT, 1);
2236 printf("%s: Error %d in basic initialization.\n", rn, code);
2241 * Tell the kernel some basic information about the workstation's cache.
2245 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2246 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2248 memset(&cparams, '\0', sizeof(cparams));
2249 cparams.cacheScaches = cacheStatEntries;
2250 cparams.cacheFiles = cacheFiles;
2251 cparams.cacheBlocks = cacheBlocks;
2252 cparams.cacheDcaches = dCacheSize;
2253 cparams.cacheVolumes = vCacheSize;
2254 cparams.chunkSize = chunkSize;
2255 cparams.setTimeFlag = 0;
2256 cparams.memCacheFlag = cacheFlags;
2257 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2258 code = afsd_syscall(AFSOP_CACHEINIT, &cparams);
2260 printf("%s: Error %d during cache init.\n", rn, code);
2264 /* do it before we init the cache inodes */
2265 if (enable_splitcache) {
2266 afsd_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2267 afsd_syscall(AFSOP_BUCKETPCT, 2, ropct);
2270 if (afsd_CloseSynch)
2271 afsd_syscall(AFSOP_CLOSEWAIT);
2274 * Sweep the workstation AFS cache directory, remembering the inodes of
2275 * valid files and deleting extraneous files. Keep sweeping until we
2276 * have the right number of data cache files or we've swept too many
2279 * This also creates files in the cache directory like VolumeItems and
2280 * CellItems, and thus must be ran before those are sent to the kernel.
2283 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2285 /* Memory-cache based system doesn't need any of this */
2286 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2289 if (SweepAFSCache(&vFilesFound)) {
2290 printf("%s: Error on sweep %d of workstation AFS cache \
2291 directory.\n", rn, cacheIteration);
2296 ("%s: %d out of %d data cache files found in sweep %d.\n",
2297 rn, vFilesFound, cacheFiles, cacheIteration);
2298 } while ((vFilesFound < cacheFiles)
2299 && (cacheIteration < MAX_CACHE_LOOPS));
2300 } else if (afsd_verbose)
2301 printf("%s: Using memory cache, not swept\n", rn);
2304 * Pass the kernel the name of the workstation cache file holding the
2308 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2310 /* once again, meaningless for a memory-based cache. */
2311 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2312 afsd_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2315 * Pass the kernel the name of the workstation cache file holding the
2318 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2320 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2321 fullpn_CellInfoFile);
2322 afsd_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2327 printf("%s: Setting rxmaxfrags in kernel = %d\n", rn, rxmaxfrags);
2328 code = afsd_syscall(AFSOP_SET_RXMAXFRAGS, rxmaxfrags);
2330 printf("%s: Error seting rxmaxfrags\n", rn);
2335 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2336 code = afsd_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2338 printf("%s: Error seting rxmaxmtu\n", rn);
2341 if (inumcalc != NULL) {
2342 if (strcmp(inumcalc, "compat") == 0) {
2344 printf("%s: Setting original inode number calculation method in kernel.\n",
2347 code = afsd_syscall(AFSOP_SET_INUMCALC, AFS_INUMCALC_COMPAT);
2349 printf("%s: Error setting inode calculation method: code=%d.\n",
2352 } else if (strcmp(inumcalc, "md5") == 0) {
2354 printf("%s: Setting md5 digest inode number calculation in kernel.\n",
2357 code = afsd_syscall(AFSOP_SET_INUMCALC, AFS_INUMCALC_MD5);
2359 printf("%s: Error setting inode calculation method: code=%d.\n",
2363 printf("%s: Unknown value for -inumcalc: %s."
2364 "Using default inode calculation method.\n", rn, inumcalc);
2368 if (enable_dynroot) {
2370 printf("%s: Enabling dynroot support in kernel%s.\n", rn,
2371 (enable_dynroot==2)?", not showing cells.":"");
2372 code = afsd_syscall(AFSOP_SET_DYNROOT, 1);
2374 printf("%s: Error enabling dynroot support.\n", rn);
2377 if (enable_fakestat) {
2379 printf("%s: Enabling fakestat support in kernel%s.\n", rn,
2380 (enable_fakestat==1)?" for all mountpoints."
2381 :" for crosscell mountpoints");
2382 code = afsd_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2384 printf("%s: Error enabling fakestat support.\n", rn);
2387 if (enable_backuptree) {
2389 printf("%s: Enabling backup tree support in kernel.\n", rn);
2390 code = afsd_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2392 printf("%s: Error enabling backup tree support.\n", rn);
2396 * Tell the kernel about each cell in the configuration.
2398 afsconf_CellApply(cdir, ConfigCell, NULL);
2399 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2401 /* Initialize AFS daemon threads. */
2403 printf("%s: Forking AFS daemon.\n", rn);
2404 fork_syscall(rn, AFSOP_START_AFS);
2407 printf("%s: Forking Check Server Daemon.\n", rn);
2408 fork_syscall(rn, AFSOP_START_CS);
2411 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2412 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2413 /* Add one because for sgi we always "steal" the first daemon for a
2414 * different task if we only have a 4K stack.
2418 for (i = 0; i < nDaemons; i++) {
2419 afsd_fork(0, daemon_thread, NULL);
2421 #ifdef AFS_AIX32_ENV
2423 nBiods = nDaemons * 2;
2426 for (i = 0; i < nBiods; i++) {
2427 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2432 * If the root volume has been explicitly set, tell the kernel.
2436 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2438 afsd_syscall(AFSOP_ROOTVOLUME, rootVolume);
2441 if (volume_ttl != 0) {
2443 printf("%s: Calling AFSOP_SET_VOLUME_TTL with '%d'\n", rn, volume_ttl);
2444 code = afsd_syscall(AFSOP_SET_VOLUME_TTL, volume_ttl);
2445 if (code == EFAULT) {
2446 if (volume_ttl < AFS_MIN_VOLUME_TTL)
2447 printf("%s: Failed to set volume ttl to %d seconds; "
2448 "value is too low.\n", rn, volume_ttl);
2449 else if (volume_ttl > AFS_MAX_VOLUME_TTL)
2450 printf("%s: Failed to set volume ttl to %d seconds; "
2451 "value is too high.\n", rn, volume_ttl);
2453 printf("%s: Failed to set volume ttl to %d seconds; "
2454 "value is out of range.\n", rn, volume_ttl);
2455 } else if (code != 0) {
2456 printf("%s: Failed to set volume ttl to %d seconds; "
2457 "code=%d.\n", rn, volume_ttl, code);
2462 * Pass the kernel the name of the workstation cache file holding the
2463 * volume information.
2466 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2467 fullpn_VolInfoFile);
2468 /* once again, meaningless for a memory-based cache. */
2469 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2470 afsd_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2473 * Give the kernel the names of the AFS files cached on the workstation's
2476 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2477 int nocachefile = 0;
2480 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2481 rn, cacheFiles, cacheBaseDir);
2482 /* ... and again ... */
2483 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2485 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2486 code = afsd_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2488 if (currVFile == 0) {
2491 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2492 rn, cacheFiles, cacheBaseDir);
2496 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2503 /* fall through to setup-by-inode */
2505 #if defined(AFS_SGI62_ENV) || !(defined(AFS_LINUX26_ENV) || defined(AFS_CACHE_VNODE_PATH))
2506 afsd_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2509 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2517 * All the necessary info has been passed into the kernel to run an AFS
2518 * system. Give the kernel our go-ahead.
2521 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2523 afsd_syscall(AFSOP_GO, 0);
2526 * At this point, we have finished passing the kernel all the info
2527 * it needs to set up the AFS. Mount the AFS root.
2529 printf("%s: All AFS daemons started.\n", rn);
2532 printf("%s: Forking trunc-cache daemon.\n", rn);
2533 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2535 if (!enable_nomount) {
2536 afsd_mount_afs(rn, afsd_cacheMountDir);
2542 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2543 afsd_fork(0, rmtsysd_thread, NULL);
2544 code = afsd_syscall(AFSOP_SET_RMTSYS_FLAG, 1);
2546 printf("%s: Error enabling rmtsys support.\n", rn);
2548 #endif /* !UKERNEL */
2550 * Exit successfully.
2556 #include "AFS_component_version_number.c"
2562 struct cmd_syndesc *ts;
2564 ts = cmd_CreateSyntax(NULL, NULL, NULL, 0, "start AFS");
2567 cmd_AddParmAtOffset(ts, OPT_blocks, "-blocks", CMD_SINGLE,
2568 CMD_OPTIONAL, "1024 byte blocks in cache");
2569 cmd_AddParmAtOffset(ts, OPT_files, "-files", CMD_SINGLE,
2570 CMD_OPTIONAL, "files in cache");
2571 cmd_AddParmAtOffset(ts, OPT_rootvol, "-rootvol", CMD_SINGLE,
2572 CMD_OPTIONAL, "name of AFS root volume");
2573 cmd_AddParmAtOffset(ts, OPT_stat, "-stat", CMD_SINGLE,
2574 CMD_OPTIONAL, "number of stat entries");
2575 cmd_AddParmAtOffset(ts, OPT_memcache, "-memcache", CMD_FLAG,
2576 CMD_OPTIONAL, "run diskless");
2577 cmd_AddParmAtOffset(ts, OPT_cachedir, "-cachedir", CMD_SINGLE,
2578 CMD_OPTIONAL, "cache directory");
2579 cmd_AddParmAtOffset(ts, OPT_mountdir, "-mountdir", CMD_SINGLE,
2580 CMD_OPTIONAL, "mount location");
2581 cmd_AddParmAtOffset(ts, OPT_daemons, "-daemons", CMD_SINGLE,
2582 CMD_OPTIONAL, "number of daemons to use");
2583 cmd_AddParmAtOffset(ts, OPT_nosettime, "-nosettime", CMD_FLAG,
2584 CMD_OPTIONAL, "don't set the time");
2585 cmd_AddParmAtOffset(ts, OPT_verbose, "-verbose", CMD_FLAG,
2586 CMD_OPTIONAL, "display lots of information");
2587 cmd_AddParmAtOffset(ts, OPT_rmtsys, "-rmtsys", CMD_FLAG,
2588 CMD_OPTIONAL, "start NFS rmtsysd program");
2589 cmd_AddParmAtOffset(ts, OPT_debug, "-debug", CMD_FLAG,
2590 CMD_OPTIONAL, "display debug info");
2591 cmd_AddParmAtOffset(ts, OPT_chunksize, "-chunksize", CMD_SINGLE,
2592 CMD_OPTIONAL, "log(2) of chunk size");
2593 cmd_AddParmAtOffset(ts, OPT_dcache, "-dcache", CMD_SINGLE,
2594 CMD_OPTIONAL, "number of dcache entries");
2595 cmd_AddParmAtOffset(ts, OPT_volumes, "-volumes", CMD_SINGLE,
2596 CMD_OPTIONAL, "number of volume entries");
2597 cmd_AddParmAtOffset(ts, OPT_biods, "-biods", CMD_SINGLE,
2598 CMD_OPTIONAL, "number of bkg I/O daemons (aix vm)");
2599 cmd_AddParmAtOffset(ts, OPT_prealloc, "-prealloc", CMD_SINGLE,
2600 CMD_OPTIONAL, "number of 'small' preallocated blocks");
2601 cmd_AddParmAtOffset(ts, OPT_confdir, "-confdir", CMD_SINGLE,
2602 CMD_OPTIONAL, "configuration directory");
2603 cmd_AddParmAtOffset(ts, OPT_logfile, "-logfile", CMD_SINGLE,
2604 CMD_OPTIONAL, "Place to keep the CM log");
2605 cmd_AddParmAtOffset(ts, OPT_waitclose, "-waitclose", CMD_FLAG,
2606 CMD_OPTIONAL, "make close calls synchronous");
2607 cmd_AddParmAtOffset(ts, OPT_shutdown, "-shutdown", CMD_FLAG,
2608 CMD_OPTIONAL, "Shutdown all afs state");
2609 cmd_AddParmAtOffset(ts, OPT_peerstats, "-enable_peer_stats", CMD_FLAG,
2610 CMD_OPTIONAL, "Collect rpc statistics by peer");
2611 cmd_AddParmAtOffset(ts, OPT_processstats, "-enable_process_stats",
2612 CMD_FLAG, CMD_OPTIONAL, "Collect rpc statistics for this process");
2613 cmd_AddParmAtOffset(ts, OPT_memallocsleep, "-mem_alloc_sleep",
2614 CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2615 "Allow sleeps when allocating memory cache");
2616 cmd_AddParmAtOffset(ts, OPT_afsdb, "-afsdb", CMD_FLAG,
2617 CMD_OPTIONAL, "Enable AFSDB support");
2618 cmd_AddParmAtOffset(ts, OPT_filesdir, "-files_per_subdir", CMD_SINGLE,
2620 "log(2) of the number of cache files per "
2621 "cache subdirectory");
2622 cmd_AddParmAtOffset(ts, OPT_dynroot, "-dynroot", CMD_FLAG,
2623 CMD_OPTIONAL, "Enable dynroot support");
2624 cmd_AddParmAtOffset(ts, OPT_fakestat, "-fakestat", CMD_FLAG,
2626 "Enable fakestat support for cross-cell mounts");
2627 cmd_AddParmAtOffset(ts, OPT_fakestatall, "-fakestat-all", CMD_FLAG,
2629 "Enable fakestat support for all mounts");
2630 cmd_AddParmAtOffset(ts, OPT_nomount, "-nomount", CMD_FLAG,
2631 CMD_OPTIONAL, "Do not mount AFS");
2632 cmd_AddParmAtOffset(ts, OPT_backuptree, "-backuptree", CMD_FLAG,
2634 "Prefer backup volumes for mountpoints in backup "
2636 cmd_AddParmAtOffset(ts, OPT_rxbind, "-rxbind", CMD_FLAG,
2638 "Bind the Rx socket (one interface only)");
2639 cmd_AddParmAtOffset(ts, OPT_settime, "-settime", CMD_FLAG,
2640 CMD_OPTIONAL, "set the time");
2641 cmd_AddParmAtOffset(ts, OPT_rxpck, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2642 "set rx_extraPackets to this value");
2643 cmd_AddParmAtOffset(ts, OPT_splitcache, "-splitcache", CMD_SINGLE,
2645 "Percentage RW versus RO in cache (specify as 60/40)");
2646 cmd_AddParmAtOffset(ts, OPT_nodynvcache, "-disable-dynamic-vcaches",
2647 CMD_FLAG, CMD_OPTIONAL,
2648 "disable stat/vcache cache growing as needed");
2649 cmd_AddParmAtOffset(ts, OPT_rxmaxmtu, "-rxmaxmtu", CMD_SINGLE,
2650 CMD_OPTIONAL, "set rx max MTU to use");
2651 cmd_AddParmAtOffset(ts, OPT_dynrootsparse, "-dynroot-sparse", CMD_FLAG,
2653 "Enable dynroot support with minimal cell list");
2654 cmd_AddParmAtOffset(ts, OPT_rxmaxfrags, "-rxmaxfrags", CMD_SINGLE,
2656 "Set the maximum number of UDP fragments Rx should "
2657 "send/receive per Rx packet");
2658 cmd_AddParmAtOffset(ts, OPT_inumcalc, "-inumcalc", CMD_SINGLE, CMD_OPTIONAL,
2659 "Set inode number calculation method");
2660 cmd_AddParmAtOffset(ts, OPT_volume_ttl, "-volume-ttl", CMD_SINGLE,
2662 "Set the vldb cache timeout value in seconds.");
2666 * Parse and check the command line options.
2668 * @note The -shutdown command is handled in CheckOptions().
2671 afsd_parse(int argc, char **argv)
2673 struct cmd_syndesc *ts = NULL;
2676 code = cmd_Parse(argc, argv, &ts);
2680 code = CheckOptions(ts);
2681 cmd_FreeOptions(&ts);
2686 * entry point for calling a syscall from another proc/thread.
2688 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
2691 * @retval NULL always
2694 call_syscall_thread(void *rock)
2696 struct afsd_syscall_args *args = rock;
2700 afsd_set_rx_rtpri();
2703 code = afsd_call_syscall(args);
2704 if (code && args->syscall == AFSOP_START_CS) {
2705 printf("%s: No check server daemon in client.\n", args->rn);
2714 afsd_syscall_populate(struct afsd_syscall_args *args, int syscall, va_list ap)
2716 afsd_syscall_param_t *params;
2718 memset(args, 0, sizeof(struct afsd_syscall_args));
2720 args->syscall = syscall;
2721 params = args->params;
2724 case AFSOP_RXEVENT_DAEMON:
2725 case AFSOP_CLOSEWAIT:
2726 case AFSOP_START_AFS:
2727 case AFSOP_START_CS:
2728 case AFSOP_START_TRUNCDAEMON:
2730 case AFSOP_START_BKG:
2731 case AFSOP_SHUTDOWN:
2732 case AFSOP_SET_RXPCK:
2733 case AFSOP_BASIC_INIT:
2734 case AFSOP_SET_RXMAXFRAGS:
2735 case AFSOP_SET_RXMAXMTU:
2736 case AFSOP_SET_DYNROOT:
2737 case AFSOP_SET_FAKESTAT:
2738 case AFSOP_SET_BACKUPTREE:
2739 case AFSOP_BUCKETPCT:
2741 case AFSOP_SET_RMTSYS_FLAG:
2742 case AFSOP_SET_INUMCALC:
2743 case AFSOP_SET_VOLUME_TTL:
2744 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2746 case AFSOP_SET_THISCELL:
2747 case AFSOP_ROOTVOLUME:
2748 case AFSOP_VOLUMEINFO:
2749 case AFSOP_CACHEFILE:
2750 case AFSOP_CACHEINFO:
2751 case AFSOP_CACHEINIT:
2752 case AFSOP_CELLINFO:
2753 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2755 case AFSOP_ADDCELLALIAS:
2756 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2757 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2759 case AFSOP_AFSDB_HANDLER:
2760 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2761 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2762 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2764 case AFSOP_BKG_HANDLER:
2765 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2766 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2767 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2769 case AFSOP_RXLISTENER_DAEMON:
2770 case AFSOP_START_RXCALLBACK:
2771 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2772 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2773 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2775 case AFSOP_ADVISEADDR:
2776 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2777 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2778 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2779 params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2781 case AFSOP_ADDCELL2:
2782 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2783 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2784 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, afs_int32)));
2785 params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2787 case AFSOP_CACHEINODE:
2788 #if defined AFS_SGI62_ENV
2790 afs_int64 tmp = va_arg(ap, afs_int64);
2791 params[0] = CAST_SYSCALL_PARAM((afs_uint32)(tmp >> 32));
2792 params[1] = CAST_SYSCALL_PARAM((afs_uint32)(tmp & 0xffffffff));
2795 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32)));
2798 case AFSOP_SEED_ENTROPY:
2799 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2800 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32)));
2803 printf("Unknown syscall enountered: %d\n", syscall);
2809 * common code for calling a syscall in another proc/thread.
2811 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
2812 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
2813 * let it run in the background
2814 * @param[in] rn the name of the running program
2815 * @param[in] syscall syscall to run
2818 fork_syscall_impl(int rx, int wait, const char *rn, int syscall, va_list ap)
2820 struct afsd_syscall_args *args;
2822 args = malloc(sizeof(*args));
2823 afsd_syscall_populate(args, syscall, ap);
2827 afsd_fork(wait, call_syscall_thread, args);
2831 * call a syscall in another process or thread.
2834 fork_syscall(const char *rn, int syscall, ...)
2838 va_start(ap, syscall);
2839 fork_syscall_impl(0, 0, rn, syscall, ap);
2844 * call a syscall in another process or thread, and give it RX priority.
2847 fork_rx_syscall(const char *rn, int syscall, ...)
2851 va_start(ap, syscall);
2852 fork_syscall_impl(1, 0, rn, syscall, ap);
2856 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
2858 * call a syscall in another process or thread, give it RX priority, and wait
2859 * for it to finish before returning.
2862 fork_rx_syscall_wait(const char *rn, int syscall, ...)
2866 va_start(ap, syscall);
2867 fork_syscall_impl(1, 1, rn, syscall, ap);
2870 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */
2873 afsd_syscall(int syscall, ...)
2876 struct afsd_syscall_args args;
2878 va_start(ap, syscall);
2879 afsd_syscall_populate(&args, syscall, ap);
2882 return afsd_call_syscall(&args);