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 *---------------------------------------------------------------------------*/
71 #include <afsconfig.h>
72 #include <afs/param.h>
73 /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is
74 * defined, and roken includes dirent */
75 #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV)
87 #include <afs/opr_assert.h>
93 #include <afs/afsutil.h>
97 #include <hcrypto/rand.h>
99 /* darwin dirent.h doesn't give us the prototypes we want if KERNEL is
101 #if defined(UKERNEL) && defined(AFS_USR_DARWIN_ENV)
109 #ifdef HAVE_SYS_FS_TYPES_H
110 #include <sys/fs_types.h>
113 #if defined(HAVE_SYS_MOUNT_H) && !defined(AFS_ARM_DARWIN_ENV)
114 #include <sys/mount.h>
117 #ifdef HAVE_SYS_FCNTL_H
118 #include <sys/fcntl.h>
121 #ifdef HAVE_SYS_MNTTAB_H
122 #include <sys/mnttab.h>
125 #ifdef HAVE_SYS_MNTENT_H
126 #include <sys/mntent.h>
133 #ifdef HAVE_SYS_VFS_H
137 #ifdef HAVE_SYS_FSTYP_H
138 #include <sys/fstyp.h>
143 #include <afs/afs_args.h>
144 #include <afs/cellconfig.h>
145 #include <afs/afssyscalls.h>
146 #include <afs/afsutil.h>
147 #include <afs/sys_prototypes.h>
149 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
151 #include <symconst.h>
157 #ifdef AFS_DARWIN_ENV
158 #ifdef AFS_DARWIN80_ENV
159 #include <sys/xattr.h>
161 #include <CoreFoundation/CoreFoundation.h>
163 static int event_pid;
164 #ifndef AFS_ARM_DARWIN_ENV
165 #define MACOS_EVENT_HANDLING 1
167 #endif /* AFS_DARWIN_ENV */
169 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
170 #include <sys/statvfs.h>
172 #if defined(AFS_SUN_ENV)
175 #ifdef HAVE_SYS_STATFS_H
176 #include <sys/statfs.h>
185 #define CACHEINFOFILE "cacheinfo"
186 #define DCACHEFILE "CacheItems"
187 #define VOLINFOFILE "VolumeItems"
188 #define CELLINFOFILE "CellItems"
190 #define MAXIPADDRS 1024
192 char LclCellName[64];
194 #define MAX_CACHE_LOOPS 4
198 * Internet address (old style... should be updated). This was pulled out of the old 4.2
199 * version of <netinet/in.h>, since it's still useful.
204 u_char s_b1, s_b2, s_b3, s_b4;
213 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
214 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
215 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
216 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
217 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
220 * Global configuration variables.
222 static int enable_rxbind = 0;
223 static int afs_shutdown = 0;
224 static int cacheBlocks; /*Num blocks in the cache */
225 static int cacheFiles; /*Optimal # of files in workstation cache */
226 static int rwpct = 0;
227 static int ropct = 0;
228 static int cacheStatEntries; /*Number of stat cache entries */
229 static char *cacheBaseDir; /*Where the workstation AFS cache lives */
230 static char *confDir; /*Where the workstation AFS configuration lives */
231 static char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
232 static char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
233 static char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
234 static char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
235 static char fullpn_VFile[1024]; /*Full pathname of data cache files */
236 static char *vFilePtr; /*Ptr to the number part of above pathname */
237 static int sawCacheMountDir = 0; /* from cmd line */
238 static int sawCacheBaseDir = 0;
239 static int sawCacheBlocks = 0;
240 static int sawDCacheSize = 0;
242 static int sawBiod = 0;
244 static int sawCacheStatEntries = 0;
245 char *afsd_cacheMountDir;
246 static char *rootVolume = NULL;
248 static int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
250 static int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
252 static int ownerRWmode = 0600; /*Read/write OK by owner */
253 static int filesSet = 0; /*True if number of files explicitly set */
254 static int nFilesPerDir = 2048; /* # files per cache dir */
255 #if defined(AFS_CACHE_BYPASS)
256 #define AFSD_NDAEMONS 4
258 #define AFSD_NDAEMONS 2
260 static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */
261 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
262 static int dCacheSize; /* # of dcache entries */
263 static int vCacheSize = 200; /* # of volume cache entries */
264 static int rootVolSet = 0; /*True if root volume name explicitly set */
265 int addrNum; /*Cell server address index being printed */
266 static int cacheFlags = 0; /*Flags to cache manager */
268 static int nBiods = 5; /* AIX3.1 only */
270 static int preallocs = 400; /* Def # of allocated memory blocks */
271 static int enable_peer_stats = 0; /* enable rx stats */
272 static int enable_process_stats = 0; /* enable rx stats */
273 static int enable_afsdb = 0; /* enable AFSDB support */
274 static int enable_dynroot = 0; /* enable dynroot support */
275 static int enable_fakestat = 0; /* enable fakestat support */
276 static int enable_backuptree = 0; /* enable backup tree support */
277 static int enable_nomount = 0; /* do not mount */
278 static int enable_splitcache = 0;
279 static int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
280 int afsd_verbose = 0; /*Are we being chatty? */
281 int afsd_debug = 0; /*Are we printing debugging info? */
282 static int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
283 static int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */
284 static int rxmaxfrags = 0; /* Are we forcing a limit on frags? */
287 #define AFSD_INO_T ino64_t
289 #define AFSD_INO_T afs_uint32
291 struct afsd_file_list {
293 struct afsd_file_list *next;
295 struct afsd_file_list **cache_dir_filelist = NULL;
296 int *cache_dir_list = NULL; /* Array of cache subdirs */
297 int *dir_for_V = NULL; /* Array: dir of each cache file.
298 * -1: file does not exist
299 * -2: file exists in top-level
300 * >=0: file exists in Dxxx
302 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
303 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
306 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
307 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
308 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
309 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
310 struct afs_cacheParams cparams; /* params passed to cache manager */
312 int PartSizeOverflow(char *path, int cs);
314 static int afsd_syscall(int code, ...);
316 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
317 static void fork_rx_syscall_wait(const char *rn, int syscall, ...);
319 static void fork_rx_syscall(const char *rn, int syscall, ...);
320 static void fork_syscall(const char *rn, int syscall, ...);
364 #ifdef MACOS_EVENT_HANDLING
365 #include <SystemConfiguration/SystemConfiguration.h>
366 #include <SystemConfiguration/SCDynamicStore.h>
368 #include <IOKit/pwr_mgt/IOPMLib.h>
369 #include <IOKit/IOMessage.h>
371 static io_connect_t root_port;
372 static IONotificationPortRef notify;
373 static io_object_t iterator;
374 static CFRunLoopSourceRef source;
377 afsd_sleep_callback(void * refCon, io_service_t service,
378 natural_t messageType, void * messageArgument )
380 switch (messageType) {
381 case kIOMessageCanSystemSleep:
382 /* Idle sleep is about to kick in; can
383 prevent sleep by calling IOCancelPowerChange, otherwise
384 if we don't ack in 30s the system sleeps anyway */
387 IOAllowPowerChange(root_port, (long)messageArgument);
390 case kIOMessageSystemWillSleep:
391 /* The system WILL go to sleep. Ack or suffer delay */
393 IOAllowPowerChange(root_port, (long)messageArgument);
396 case kIOMessageSystemWillRestart:
397 /* The system WILL restart. Ack or suffer delay */
399 IOAllowPowerChange(root_port, (long)messageArgument);
402 case kIOMessageSystemWillPowerOn:
403 case kIOMessageSystemHasPoweredOn:
404 /* coming back from sleep */
406 IOAllowPowerChange(root_port, (long)messageArgument);
410 IOAllowPowerChange(root_port, (long)messageArgument);
416 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
418 /* parse multihomed address files */
419 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
424 code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS,
425 reason, AFSDIR_CLIENT_NETINFO_FILEPATH,
426 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
429 /* Note we're refreshing */
430 code = code | 0x40000000;
431 afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
433 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
436 /* Since it's likely this means our DNS server changed, reinit now */
441 /* This function is called when the system's ip addresses may have changed. */
443 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
445 CFRunLoopTimerRef timer;
447 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
448 0.0, 0, 0, afsd_update_addresses, NULL);
449 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
450 kCFRunLoopDefaultMode);
455 afsd_event_cleanup(int signo) {
457 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
459 IODeregisterForSystemPower(&iterator);
460 IOServiceClose(root_port);
461 IONotificationPortDestroy(notify);
465 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
467 afsd_install_events(void)
469 SCDynamicStoreContext ctx = {0};
470 SCDynamicStoreRef store;
472 root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator);
475 CFRunLoopAddSource(CFRunLoopGetCurrent(),
476 IONotificationPortGetRunLoopSource(notify),
477 kCFRunLoopDefaultMode);
481 store = SCDynamicStoreCreate (NULL,
482 CFSTR ("AddIPAddressListChangeCallbackSCF"),
483 afsd_ipaddr_callback, &ctx);
488 /* Request IPV4 address change notification */
489 keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity
490 (NULL, kSCDynamicStoreDomainState,
491 kSCCompAnyRegex, kSCEntNetIPv4));
494 /* This should tell us when the hostname(s) change. do we care? */
495 keys[N] = SCDynamicStoreKeyCreateHostNames (NULL);
498 if (keys[0] != NULL) {
499 CFArrayRef pattern_array;
501 pattern_array = CFArrayCreate (NULL, keys, 1,
502 &kCFTypeArrayCallBacks);
504 if (pattern_array != NULL)
506 SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array);
507 source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0);
509 CFRelease (pattern_array);
519 if (source != NULL) {
520 CFRunLoopAddSource (CFRunLoopGetCurrent(),
521 source, kCFRunLoopDefaultMode);
524 signal(SIGTERM, afsd_event_cleanup);
530 /* ParseArgs is now obsolete, being handled by cmd */
532 /*------------------------------------------------------------------------------
536 * Open the file containing the description of the workstation's AFS cache
537 * and pull out its contents. The format of this file is as follows:
539 * cacheMountDir:cacheBaseDir:cacheBlocks
545 * 0 if everything went well,
549 * Nothing interesting.
553 *---------------------------------------------------------------------------*/
556 ParseCacheInfoFile(void)
558 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
559 FILE *cachefd; /*Descriptor for cache info file */
560 int parseResult; /*Result of our fscanf() */
562 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
565 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
567 cachefd = fopen(fullpn_CacheInfo, "r");
569 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
574 * Parse the contents of the cache info file. All chars up to the first
575 * colon are the AFS mount directory, all chars to the next colon are the
576 * full path name of the workstation cache directory and all remaining chars
577 * represent the number of blocks in the cache.
579 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
581 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
582 tCacheBaseDir, &tCacheBlocks);
585 * Regardless of how the parse went, we close the cache info file.
589 if (parseResult == EOF || parseResult < 3) {
590 printf("%s: Format error in cache info file!\n", rn);
591 if (parseResult == EOF)
592 printf("\tEOF encountered before any field parsed.\n");
594 printf("\t%d out of 3 fields successfully parsed.\n",
600 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
602 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
604 /* now copy in the fields not explicitly overridden by cmd args */
605 if (!sawCacheMountDir)
606 afsd_cacheMountDir = strdup(tmd);
607 if (!sawCacheBaseDir)
608 cacheBaseDir = strdup(tbd);
610 cacheBlocks = tCacheBlocks;
613 printf("%s: Cache info file successfully parsed:\n", rn);
615 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
616 tmd, tbd, tCacheBlocks);
618 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
619 return (PartSizeOverflow(tbd, cacheBlocks));
626 * All failures to open the partition are ignored. Also if the cache dir
627 * isn't a mounted partition it's also ignored since we can't guarantee
628 * what will be stored afterwards. Too many if's. This is now purely
629 * advisory. ODS with over 2G partition also gives warning message.
632 * 0 if everything went well,
636 PartSizeOverflow(char *path, int cs)
639 afs_int64 totalblks, mint;
640 #if AFS_HAVE_STATVFS || defined(HAVE_SYS_STATVFS_H)
641 struct statvfs statbuf;
643 if (statvfs(path, &statbuf) != 0) {
646 ("statvfs failed on %s; skip checking for adequate partition space\n",
650 totalblks = statbuf.f_blocks;
651 bsize = statbuf.f_frsize;
653 if (strcmp(statbuf.f_basetype, "jfs")) {
654 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
655 path, statbuf.f_basetype);
658 #endif /* AFS_AIX51_ENV */
660 #else /* AFS_HAVE_STATVFS */
661 struct statfs statbuf;
663 if (statfs(path, &statbuf) < 0) {
666 ("statfs failed on %s; skip checking for adequate partition space\n",
670 totalblks = statbuf.f_blocks;
671 bsize = statbuf.f_bsize;
674 return 0; /* success */
676 /* now free and totalblks are in fragment units, but we want them in 1K units */
678 totalblks *= (bsize / 1024);
680 totalblks /= (1024 / bsize);
683 mint = totalblks / 100 * 95;
686 ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n",
694 /*-----------------------------------------------------------------------------
698 * Given the final component of a filename expected to be a data cache file,
699 * return the integer corresponding to the file. Note: we reject names that
700 * are not a ``V'' followed by an integer. We also reject those names having
701 * the right format but lying outside the range [0..cacheFiles-1].
704 * fname : Char ptr to the filename to parse.
705 * max : integer for the highest number to accept
708 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
712 * Nothing interesting.
716 *---------------------------------------------------------------------------*/
719 doGetXFileNumber(char *fname, char filechar, int maxNum)
721 int computedVNumber; /*The computed file number we return */
722 int filenameLen; /*Number of chars in filename */
723 int currDigit; /*Current digit being processed */
726 * The filename must have at least two characters, the first of which must be a ``filechar''
727 * and the second of which cannot be a zero unless the file is exactly two chars long.
729 filenameLen = strlen(fname);
732 if (fname[0] != filechar)
734 if ((filenameLen > 2) && (fname[1] == '0'))
738 * Scan through the characters in the given filename, failing immediately if a non-digit
741 for (currDigit = 1; currDigit < filenameLen; currDigit++)
742 if (isdigit(fname[currDigit]) == 0)
746 * All relevant characters are digits. Pull out the decimal number they represent.
747 * Reject it if it's out of range, otherwise return it.
749 computedVNumber = atoi(++fname);
750 if (computedVNumber < cacheFiles)
751 return (computedVNumber);
757 GetVFileNumber(char *fname, int maxFile)
759 return doGetXFileNumber(fname, 'V', maxFile);
763 GetDDirNumber(char *fname, int maxDir)
765 return doGetXFileNumber(fname, 'D', maxDir);
769 /*-----------------------------------------------------------------------------
773 * Given a full pathname for a file we need to create for the workstation AFS
774 * cache, go ahead and create the file.
777 * fname : Full pathname of file to create.
778 * statp : A pointer to a stat buffer which, if NON-NULL, will be
782 * 0 iff the file was created,
786 * The given cache file has been found to be missing.
790 *---------------------------------------------------------------------------*/
793 CreateCacheSubDir(char *basename, int dirNum)
795 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
799 /* Build the new cache subdirectory */
800 sprintf(dir, "%s/D%d", basename, dirNum);
803 printf("%s: Creating cache subdir '%s'\n", rn, dir);
805 if ((ret = mkdir(dir, 0700)) != 0) {
806 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
812 /* Mark this directory as created */
813 cache_dir_list[dirNum] = 0;
815 /* And return success */
820 SetNoBackupAttr(char *fullpn)
822 #ifdef AFS_DARWIN80_ENV
825 ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem",
826 "com.apple.backupd", strlen("com.apple.backupd"), 0,
831 fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno));
838 MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile,
841 static char rn[] = "MoveCacheFile";
842 char from[1024], to[1024];
845 if (cache_dir_list[toDir] < 0
846 && (ret = CreateCacheSubDir(basename, toDir))) {
847 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
851 /* Build the from,to dir */
853 /* old-style location */
854 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
856 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
860 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
863 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
865 if ((ret = rename(from, to)) != 0) {
866 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
867 from, to, ret, errno);
872 /* Reset directory pointer; fix file counts */
873 dir_for_V[cacheFile] = toDir;
874 cache_dir_list[toDir]++;
875 if (fromDir < maxDir && fromDir >= 0)
876 cache_dir_list[fromDir]--;
882 CreateCacheFile(char *fname, struct stat *statp)
884 static char rn[] = "CreateCacheFile"; /*Routine name */
885 int cfd; /*File descriptor to AFS cache file */
886 int closeResult; /*Result of close() */
889 printf("%s: Creating cache file '%s'\n", rn, fname);
890 cfd = open(fname, createAndTrunc, ownerRWmode);
892 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
897 closeResult = fstat(cfd, statp);
900 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
905 closeResult = close(cfd);
908 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
917 CreateFileIfMissing(char *fullpn, int missing)
920 if (CreateCacheFile(fullpn, NULL))
921 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
926 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
928 if (unlink(fullpn_FileToDelete)) {
929 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
930 if (rmdir(fullpn_FileToDelete)) {
931 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
932 fullpn_FileToDelete, errno);
935 printf("%s: Can't unlink '%s', errno is %d\n", rn,
936 fullpn_FileToDelete, errno);
940 /*-----------------------------------------------------------------------------
944 * Sweep through the AFS cache directory, recording the inode number for
945 * each valid data cache file there. Also, delete any file that doesn't belong
946 * in the cache directory during this sweep, and remember which of the other
947 * residents of this directory were seen. After the sweep, we create any data
948 * cache files that were missing.
951 * vFilesFound : Set to the number of data cache files found.
954 * 0 if everything went well,
958 * This routine may be called several times. If the number of data cache files
959 * found is less than the global cacheFiles, then the caller will need to call it
960 * again to record the inodes of the missing zero-length data cache files created
961 * in the previous call.
964 * Fills up the global inode_for_V array, may create and/or delete files as
966 *---------------------------------------------------------------------------*/
970 doSweepAFSCache(int *vFilesFound,
971 char *directory, /* /path/to/cache/directory */
972 int dirNum, /* current directory number */
973 int maxDir) /* maximum directory number */
975 static char rn[] = "doSweepAFSCache"; /* Routine Name */
976 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
977 char *fileToDelete; /*Ptr to last component of above */
978 DIR *cdirp; /*Ptr to cache directory structure */
980 struct dirent64 *currp; /*Current directory entry */
982 struct dirent *currp; /*Current directory entry */
984 int vFileNum; /*Data cache file's associated number */
985 int thisDir; /* A directory number */
989 printf("%s: Opening cache directory '%s'\n", rn, directory);
991 if (chmod(directory, 0700)) { /* force it to be 700 */
992 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
996 cdirp = opendir(directory);
997 if (cdirp == (DIR *) 0) {
998 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
1003 * Scan the directory entries, remembering data cache file inodes
1004 * and the existance of other important residents. Recurse into
1005 * the data subdirectories.
1007 * Delete all files and directories that don't belong here.
1009 sprintf(fullpn_FileToDelete, "%s/", directory);
1010 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
1012 #ifdef AFS_SGI62_ENV
1013 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
1015 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
1019 printf("%s: Current directory entry:\n", rn);
1020 #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV)
1021 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino,
1022 currp->d_reclen, currp->d_name);
1023 #elif defined(AFS_DFBSD_ENV) || defined(AFS_USR_DFBSD_ENV)
1024 printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name);
1026 printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino,
1027 currp->d_reclen, currp->d_name);
1032 * If dirNum < 0, we are a top-level cache directory and should
1033 * only contain sub-directories and other sundry files. Therefore,
1034 * V-files are valid only if dirNum >= 0, and Directories are only
1035 * valid if dirNum < 0.
1038 if (*(currp->d_name) == 'V'
1039 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1042 * Found a valid data cache filename. Remember this
1043 * file's inode, directory, and bump the number of files found
1044 * total and in this directory.
1046 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
1047 inode_for_V[vFileNum] = currp->d_ino;
1049 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1052 /* If we're in a real subdir, mark this file to be moved
1053 * if we've already got too many files in this directory
1055 assert(dirNum >= 0);
1056 cache_dir_list[dirNum]++; /* keep directory's file count */
1057 if (cache_dir_list[dirNum] > nFilesPerDir) {
1058 /* Too many files -- add to filelist */
1059 struct afsd_file_list *tmp = malloc(sizeof(*tmp));
1062 ("%s: MALLOC FAILED allocating file_list entry\n",
1065 tmp->fileNum = vFileNum;
1066 tmp->next = cache_dir_filelist[dirNum];
1067 cache_dir_filelist[dirNum] = tmp;
1072 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1073 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1075 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1076 /* Found a valid cachefile sub-Directory. Remember this number
1077 * and recurse into it. Note that subdirs cannot have subdirs.
1080 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1082 /* This directory is going away, but figure out if there
1083 * are any cachefiles in here that should be saved by
1084 * moving them to other cache directories. This directory
1085 * will be removed later.
1090 /* Save the highest directory number we've seen */
1091 if (vFileNum > highDir)
1094 /* If this directory is staying, be sure to mark it as 'found' */
1096 cache_dir_list[vFileNum] = 0;
1098 /* Print the dirname for recursion */
1099 sprintf(fileToDelete, "%s", currp->d_name);
1101 /* Note: vFileNum is the directory number */
1103 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1104 (retval == 1 ? 0 : -1));
1106 printf("%s: Recursive sweep failed on directory %s\n", rn,
1110 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1112 * Found the file holding the dcache entries.
1114 missing_DCacheFile = 0;
1115 SetNoBackupAttr(fullpn_DCacheFile);
1116 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1118 * Found the file holding the volume info.
1120 missing_VolInfoFile = 0;
1121 SetNoBackupAttr(fullpn_VolInfoFile);
1122 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1124 * Found the file holding the cell info.
1126 missing_CellInfoFile = 0;
1127 SetNoBackupAttr(fullpn_CellInfoFile);
1128 } else if ((strcmp(currp->d_name, ".") == 0)
1129 || (strcmp(currp->d_name, "..") == 0) ||
1130 #ifdef AFS_DECOSF_ENV
1131 /* these are magic AdvFS files */
1132 (strcmp(currp->d_name, ".tags") == 0)
1133 || (strcmp(currp->d_name, "quota.user") == 0)
1134 || (strcmp(currp->d_name, "quota.group") == 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 mainproc(struct cmd_syndesc *as, void *arock)
1687 afs_int32 code; /*Result of fork() */
1691 #ifdef AFS_SGI65_ENV
1692 struct sched_param sp;
1695 #ifdef AFS_SGI_VNODE_GLUE
1696 if (afs_init_kernel_config(-1) < 0) {
1697 printf("Can't determine NUMA configuration, not starting AFS.\n");
1702 cmd_OpenConfigFile(AFSDIR_CLIENT_CONFIG_FILE_FILEPATH);
1703 cmd_SetCommandName("afsd");
1705 /* call atoi on the appropriate parsed results */
1706 if (cmd_OptionAsInt(as, OPT_blocks, &cacheBlocks) == 0)
1709 if (cmd_OptionAsInt(as, OPT_files, &cacheFiles) == 0)
1712 if (cmd_OptionAsString(as, OPT_rootvol, &rootVolume) == 0)
1715 if (cmd_OptionAsInt(as, OPT_stat, &cacheStatEntries) == 0)
1716 sawCacheStatEntries = 1;
1718 if (cmd_OptionPresent(as, OPT_memcache)) {
1719 cacheBaseDir = NULL;
1720 sawCacheBaseDir = 1;
1721 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1724 if (cmd_OptionAsString(as, OPT_cachedir, &cacheBaseDir) == 0)
1725 sawCacheBaseDir = 1;
1727 if (cmd_OptionAsString(as, OPT_mountdir, &afsd_cacheMountDir) == 0)
1728 sawCacheMountDir = 1;
1730 cmd_OptionAsInt(as, OPT_daemons, &nDaemons);
1732 afsd_verbose = cmd_OptionPresent(as, OPT_verbose);
1734 if (cmd_OptionPresent(as, OPT_rmtsys)) {
1737 printf("-rmtsys not supported for UKERNEL\n");
1742 if (cmd_OptionPresent(as, OPT_debug)) {
1747 if (cmd_OptionAsInt(as, OPT_chunksize, &chunkSize) == 0) {
1748 if (chunkSize < 0 || chunkSize > 30) {
1750 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1755 if (cmd_OptionAsInt(as, OPT_dcache, &dCacheSize) == 0)
1758 cmd_OptionAsInt(as, OPT_volumes, &vCacheSize);
1760 if (cmd_OptionPresent(as, OPT_biods)) {
1762 #ifndef AFS_AIX32_ENV
1764 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1766 cmd_OptionAsInt(as, OPT_biods, &nBiods);
1769 cmd_OptionAsInt(as, OPT_prealloc, &preallocs);
1771 if (cmd_OptionAsString(as, OPT_confdir, &confDir) == CMD_MISSING) {
1772 confDir = strdup(AFSDIR_CLIENT_ETC_DIRPATH);
1774 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1776 if (cmd_OptionPresent(as, OPT_logfile)) {
1777 printf("afsd: Ignoring obsolete -logfile flag\n");
1780 afsd_CloseSynch = cmd_OptionPresent(as, OPT_waitclose);
1782 if (cmd_OptionPresent(as, OPT_shutdown)) {
1786 * Cold shutdown is the default
1788 printf("afsd: Shutting down all afs processes and afs state\n");
1789 code = afsd_syscall(AFSOP_SHUTDOWN, 1);
1791 printf("afsd: AFS still mounted; Not shutting down\n");
1797 enable_peer_stats = cmd_OptionPresent(as, OPT_peerstats);
1798 enable_process_stats = cmd_OptionPresent(as, OPT_processstats);
1800 if (cmd_OptionPresent(as, OPT_memallocsleep)) {
1801 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1804 enable_afsdb = cmd_OptionPresent(as, OPT_afsdb);
1805 if (cmd_OptionPresent(as, OPT_filesdir)) {
1806 /* -files_per_subdir */
1808 cmd_OptionAsInt(as, OPT_filesdir, &res);
1809 if (res < 10 || res > (1 << 30)) {
1811 ("afsd:invalid number of files per subdir, \"%s\". Ignored\n",
1812 as->parms[25].items->data);
1817 enable_dynroot = cmd_OptionPresent(as, OPT_dynroot);
1819 if (cmd_OptionPresent(as, OPT_fakestat)) {
1820 enable_fakestat = 2;
1822 if (cmd_OptionPresent(as, OPT_fakestatall)) {
1823 enable_fakestat = 1;
1825 if (cmd_OptionPresent(as, OPT_settime)) {
1827 printf("afsd: -settime ignored\n");
1828 printf("afsd: the OpenAFS client no longer sets the system time; "
1829 "please use NTP or\n");
1830 printf("afsd: another such system to synchronize client time\n");
1833 enable_nomount = cmd_OptionPresent(as, OPT_nomount);
1834 enable_backuptree = cmd_OptionPresent(as, OPT_backuptree);
1835 enable_rxbind = cmd_OptionPresent(as, OPT_rxbind);
1837 /* set rx_extraPackets */
1838 if (cmd_OptionPresent(as, OPT_rxpck)) {
1841 cmd_OptionAsInt(as, OPT_rxpck, &rxpck);
1842 printf("afsd: set rxpck = %d\n", rxpck);
1843 code = afsd_syscall(AFSOP_SET_RXPCK, rxpck);
1845 printf("afsd: failed to set rxpck\n");
1849 if (cmd_OptionPresent(as, OPT_splitcache)) {
1853 cmd_OptionAsString(as, OPT_splitcache, &var);
1855 if (var == NULL || ((c = strchr(var, '/')) == NULL))
1857 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1859 ropct = atoi(c + 1);
1862 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1864 enable_splitcache = 1;
1869 if (cmd_OptionPresent(as, OPT_nodynvcache)) {
1870 #ifdef AFS_MAXVCOUNT_ENV
1871 afsd_dynamic_vcaches = 0;
1873 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1877 #ifdef AFS_MAXVCOUNT_ENV
1879 /* -dynamic-vcaches */
1880 afsd_dynamic_vcaches = 1;
1884 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1887 cmd_OptionAsInt(as, OPT_rxmaxmtu, &rxmaxmtu);
1889 if (cmd_OptionPresent(as, OPT_dynrootsparse)) {
1893 cmd_OptionAsInt(as, OPT_rxmaxfrags, &rxmaxfrags);
1895 /* parse cacheinfo file if this is a diskcache */
1896 if (ParseCacheInfoFile()) {
1906 static char rn[] = "afsd"; /*Name of this routine */
1907 struct afsconf_dir *cdir; /* config dir */
1908 int lookupResult; /*Result of GetLocalCellName() */
1910 int code; /*Result of fork() */
1911 char *fsTypeMsg = NULL;
1912 int cacheIteration; /*How many times through cache verification */
1913 int vFilesFound; /*How many data cache files were found in sweep */
1914 int currVFile; /*Current AFS cache file number passed in */
1917 * Pull out all the configuration info for the workstation's AFS cache and
1918 * the cellular community we're willing to let our users see.
1920 cdir = afsconf_Open(confDir);
1922 printf("afsd: some file missing or bad in %s\n", confDir);
1927 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1929 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1933 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1936 if (!enable_nomount) {
1937 if (afsd_check_mount(rn, afsd_cacheMountDir)) {
1942 /* do some random computations in memcache case to get things to work
1943 * reasonably no matter which parameters you set.
1945 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1946 /* memory cache: size described either as blocks or dcache entries, but
1950 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1952 if (sawDCacheSize) {
1953 if (chunkSize == 0) {
1954 chunkSize = 13; /* 8k default chunksize for memcache */
1956 if (sawCacheBlocks) {
1958 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1962 /* compute the cache size based on # of chunks times the chunk size */
1963 i = (1 << chunkSize); /* bytes per chunk */
1964 cacheBlocks = i * dCacheSize;
1965 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1967 if (chunkSize == 0) {
1968 /* Try to autotune the memcache chunksize based on size
1969 * of memcache. This is done on the assumption that approx
1970 * 1024 chunks is suitable, it's a balance between enough
1971 * chunks to be useful and ramping up nicely when using larger
1972 * memcache to improve bulk read/write performance
1975 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1978 /* compute the dcache size from overall cache size and chunk size */
1979 if (chunkSize > 10) {
1980 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1981 } else if (chunkSize < 10) {
1982 dCacheSize = (cacheBlocks << (10 - chunkSize));
1984 dCacheSize = cacheBlocks;
1986 /* don't have to set sawDCacheSize here since it isn't overwritten
1987 * by ParseCacheInfoFile.
1991 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
1993 /* kernel computes # of dcache entries as min of cacheFiles and
1994 * dCacheSize, so we now make them equal.
1996 cacheFiles = dCacheSize;
1999 * Compute the number of cache files based on cache size,
2000 * but only if -files isn't given on the command line.
2001 * Don't let # files be so small as to prevent full utilization
2002 * of the cache unless user has explicitly asked for it.
2004 if (chunkSize == 0) {
2005 /* Set chunksize to 256kB - 1MB depending on cache size */
2006 if (cacheBlocks < 500000) {
2008 } else if (cacheBlocks < 1000000) {
2016 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2018 cacheFiles = max(cacheFiles, 1000);
2020 /* Always allow more files than chunks. Presume average V-file
2021 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2022 * have a grad student write a paper). i is KILOBYTES.
2024 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2025 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2027 /* never permit more files than blocks, while leaving space for
2028 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2029 * CacheItems is 50 Bytes / file (== 1K/20)
2031 #define CACHEITMSZ (cacheFiles / 20)
2032 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2033 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2034 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2036 /* Sanity check: If the obtained number of disk cache files
2037 * is larger than the number of available (4k) disk blocks, we're
2038 * doing something wrong. Fail hard so we can fix the bug instead
2039 * of silently hiding it like before */
2041 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2043 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2044 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2047 if (cacheFiles < 100)
2048 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2052 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2055 /* This actually needs to
2057 2) not second-guess when a chunksize comes from the command line
2058 3) be less, um, small. 2^2??
2060 /* Sanity check chunkSize */
2061 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2062 chunkSize = min(chunkSize, i);
2063 chunkSize = max(chunkSize, 2);
2065 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2068 if (!sawDCacheSize) {
2069 dCacheSize = cacheFiles / 2;
2070 if (dCacheSize > 10000) {
2073 if (dCacheSize < 2000) {
2077 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2080 if (!sawCacheStatEntries) {
2081 if (chunkSize <= 13) {
2082 cacheStatEntries = dCacheSize / 4;
2083 } else if (chunkSize >= 16) {
2084 cacheStatEntries = dCacheSize * 1.5;
2086 cacheStatEntries = dCacheSize;
2089 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2093 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(AFS_LINUX26_ENV)
2095 * Create and zero the inode table for the desired cache files.
2097 inode_for_V = calloc(cacheFiles, sizeof(AFSD_INO_T));
2098 if (inode_for_V == (AFSD_INO_T *) 0) {
2100 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2105 printf("%s: %d inode_for_V entries at %p, %lu bytes\n", rn,
2106 cacheFiles, inode_for_V,
2107 (unsigned long)cacheFiles * sizeof(AFSD_INO_T));
2110 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2112 * Set up all the pathnames we'll need for later.
2114 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2115 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2116 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2117 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2118 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2120 fsTypeMsg = CheckCacheBaseDir(cacheBaseDir);
2123 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2125 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2132 * Set up all the kernel processes needed for AFS.
2135 setpgrp(getpid(), 0);
2139 * Set the primary cell name.
2141 afsd_syscall(AFSOP_SET_THISCELL, LclCellName);
2143 /* Initialize RX daemons and services */
2145 /* initialize the rx random number generator from user space */
2147 /* rand-fortuna wants at least 128 bytes of seed; be generous. */
2148 unsigned char seedbuf[256];
2149 if (RAND_bytes(seedbuf, sizeof(seedbuf)) != 1) {
2150 printf("SEED_ENTROPY: Error retrieving seed entropy\n");
2152 afsd_syscall(AFSOP_SEED_ENTROPY, seedbuf, sizeof(seedbuf));
2153 memset(seedbuf, 0, sizeof(seedbuf));
2154 /* parse multihomed address files */
2155 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2158 code = afsconf_ParseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2159 AFSDIR_CLIENT_NETINFO_FILEPATH,
2160 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2163 code = code | 0x80000000;
2164 afsd_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2166 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2170 /* Set realtime priority for most threads to same as for biod's. */
2171 afsd_set_afsd_rtpri();
2173 /* Start listener, then callback listener. Lastly, start rx event daemon.
2174 * Change in ordering is so that Linux port has socket fd in listener
2176 * preallocs are passed for both listener and callback server. Only
2177 * the one which actually does the initialization uses them though.
2179 if (preallocs < cacheStatEntries + 50)
2180 preallocs = cacheStatEntries + 50;
2181 #ifdef RXK_LISTENER_ENV
2183 printf("%s: Forking rx listener daemon.\n", rn);
2184 # ifdef AFS_SUN510_ENV
2185 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2186 enable_peer_stats, enable_process_stats);
2187 # else /* !AFS_SUN510_ENV */
2188 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2189 enable_process_stats);
2190 # endif /* !AFS_SUN510_ENV */
2193 printf("%s: Forking rx callback listener.\n", rn);
2194 #ifndef RXK_LISTENER_ENV
2195 fork_rx_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, enable_peer_stats,
2196 enable_process_stats);
2198 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs, 0, 0);
2200 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV) || defined(RXK_UPCALL_ENV)
2202 printf("%s: Forking rxevent daemon.\n", rn);
2203 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2208 printf("%s: Forking AFSDB lookup handler.\n", rn);
2209 afsd_fork(0, afsdb_thread, NULL);
2211 code = afsd_syscall(AFSOP_BASIC_INIT, 1);
2213 printf("%s: Error %d in basic initialization.\n", rn, code);
2218 * Tell the kernel some basic information about the workstation's cache.
2222 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2223 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2225 memset(&cparams, '\0', sizeof(cparams));
2226 cparams.cacheScaches = cacheStatEntries;
2227 cparams.cacheFiles = cacheFiles;
2228 cparams.cacheBlocks = cacheBlocks;
2229 cparams.cacheDcaches = dCacheSize;
2230 cparams.cacheVolumes = vCacheSize;
2231 cparams.chunkSize = chunkSize;
2232 cparams.setTimeFlag = 0;
2233 cparams.memCacheFlag = cacheFlags;
2234 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2235 afsd_syscall(AFSOP_CACHEINIT, &cparams);
2237 /* do it before we init the cache inodes */
2238 if (enable_splitcache) {
2239 afsd_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2240 afsd_syscall(AFSOP_BUCKETPCT, 2, ropct);
2243 if (afsd_CloseSynch)
2244 afsd_syscall(AFSOP_CLOSEWAIT);
2247 * Sweep the workstation AFS cache directory, remembering the inodes of
2248 * valid files and deleting extraneous files. Keep sweeping until we
2249 * have the right number of data cache files or we've swept too many
2252 * This also creates files in the cache directory like VolumeItems and
2253 * CellItems, and thus must be ran before those are sent to the kernel.
2256 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2258 /* Memory-cache based system doesn't need any of this */
2259 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2262 if (SweepAFSCache(&vFilesFound)) {
2263 printf("%s: Error on sweep %d of workstation AFS cache \
2264 directory.\n", rn, cacheIteration);
2269 ("%s: %d out of %d data cache files found in sweep %d.\n",
2270 rn, vFilesFound, cacheFiles, cacheIteration);
2271 } while ((vFilesFound < cacheFiles)
2272 && (cacheIteration < MAX_CACHE_LOOPS));
2273 } else if (afsd_verbose)
2274 printf("%s: Using memory cache, not swept\n", rn);
2277 * Pass the kernel the name of the workstation cache file holding the
2281 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2283 /* once again, meaningless for a memory-based cache. */
2284 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2285 afsd_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2288 * Pass the kernel the name of the workstation cache file holding the
2291 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2293 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2294 fullpn_CellInfoFile);
2295 afsd_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2300 printf("%s: Setting rxmaxfrags in kernel = %d\n", rn, rxmaxfrags);
2301 code = afsd_syscall(AFSOP_SET_RXMAXFRAGS, rxmaxfrags);
2303 printf("%s: Error seting rxmaxfrags\n", rn);
2308 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2309 code = afsd_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2311 printf("%s: Error seting rxmaxmtu\n", rn);
2314 if (enable_dynroot) {
2316 printf("%s: Enabling dynroot support in kernel%s.\n", rn,
2317 (enable_dynroot==2)?", not showing cells.":"");
2318 code = afsd_syscall(AFSOP_SET_DYNROOT, 1);
2320 printf("%s: Error enabling dynroot support.\n", rn);
2323 if (enable_fakestat) {
2325 printf("%s: Enabling fakestat support in kernel%s.\n", rn,
2326 (enable_fakestat==1)?" for all mountpoints."
2327 :" for crosscell mountpoints");
2328 code = afsd_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2330 printf("%s: Error enabling fakestat support.\n", rn);
2333 if (enable_backuptree) {
2335 printf("%s: Enabling backup tree support in kernel.\n", rn);
2336 code = afsd_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2338 printf("%s: Error enabling backup tree support.\n", rn);
2342 * Tell the kernel about each cell in the configuration.
2344 afsconf_CellApply(cdir, ConfigCell, NULL);
2345 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2347 /* Initialize AFS daemon threads. */
2349 printf("%s: Forking AFS daemon.\n", rn);
2350 fork_syscall(rn, AFSOP_START_AFS);
2353 printf("%s: Forking Check Server Daemon.\n", rn);
2354 fork_syscall(rn, AFSOP_START_CS);
2357 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2358 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2359 /* Add one because for sgi we always "steal" the first daemon for a
2360 * different task if we only have a 4K stack.
2364 for (i = 0; i < nDaemons; i++) {
2365 afsd_fork(0, daemon_thread, NULL);
2367 #ifdef AFS_AIX32_ENV
2369 nBiods = nDaemons * 2;
2372 for (i = 0; i < nBiods; i++) {
2373 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2378 * If the root volume has been explicitly set, tell the kernel.
2382 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2384 afsd_syscall(AFSOP_ROOTVOLUME, rootVolume);
2388 * Pass the kernel the name of the workstation cache file holding the
2389 * volume information.
2392 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2393 fullpn_VolInfoFile);
2394 /* once again, meaningless for a memory-based cache. */
2395 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2396 afsd_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2399 * Give the kernel the names of the AFS files cached on the workstation's
2402 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2403 int nocachefile = 0;
2406 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2407 rn, cacheFiles, cacheBaseDir);
2408 /* ... and again ... */
2409 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2411 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2412 code = afsd_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2414 if (currVFile == 0) {
2417 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2418 rn, cacheFiles, cacheBaseDir);
2422 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2429 /* fall through to setup-by-inode */
2431 #if defined(AFS_SGI62_ENV) || !(defined(AFS_LINUX26_ENV) || defined(AFS_CACHE_VNODE_PATH))
2432 afsd_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2435 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2443 * All the necessary info has been passed into the kernel to run an AFS
2444 * system. Give the kernel our go-ahead.
2447 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2449 afsd_syscall(AFSOP_GO, 0);
2452 * At this point, we have finished passing the kernel all the info
2453 * it needs to set up the AFS. Mount the AFS root.
2455 printf("%s: All AFS daemons started.\n", rn);
2458 printf("%s: Forking trunc-cache daemon.\n", rn);
2459 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2461 if (!enable_nomount) {
2462 afsd_mount_afs(rn, afsd_cacheMountDir);
2468 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2469 afsd_fork(0, rmtsysd_thread, NULL);
2470 code = afsd_syscall(AFSOP_SET_RMTSYS_FLAG, 1);
2472 printf("%s: Error enabling rmtsys support.\n", rn);
2474 #endif /* !UKERNEL */
2476 * Exit successfully.
2482 #include "AFS_component_version_number.c"
2488 struct cmd_syndesc *ts;
2490 ts = cmd_CreateSyntax(NULL, mainproc, NULL, 0, "start AFS");
2493 cmd_AddParmAtOffset(ts, OPT_blocks, "-blocks", CMD_SINGLE,
2494 CMD_OPTIONAL, "1024 byte blocks in cache");
2495 cmd_AddParmAtOffset(ts, OPT_files, "-files", CMD_SINGLE,
2496 CMD_OPTIONAL, "files in cache");
2497 cmd_AddParmAtOffset(ts, OPT_rootvol, "-rootvol", CMD_SINGLE,
2498 CMD_OPTIONAL, "name of AFS root volume");
2499 cmd_AddParmAtOffset(ts, OPT_stat, "-stat", CMD_SINGLE,
2500 CMD_OPTIONAL, "number of stat entries");
2501 cmd_AddParmAtOffset(ts, OPT_memcache, "-memcache", CMD_FLAG,
2502 CMD_OPTIONAL, "run diskless");
2503 cmd_AddParmAtOffset(ts, OPT_cachedir, "-cachedir", CMD_SINGLE,
2504 CMD_OPTIONAL, "cache directory");
2505 cmd_AddParmAtOffset(ts, OPT_mountdir, "-mountdir", CMD_SINGLE,
2506 CMD_OPTIONAL, "mount location");
2507 cmd_AddParmAtOffset(ts, OPT_daemons, "-daemons", CMD_SINGLE,
2508 CMD_OPTIONAL, "number of daemons to use");
2509 cmd_AddParmAtOffset(ts, OPT_nosettime, "-nosettime", CMD_FLAG,
2510 CMD_OPTIONAL, "don't set the time");
2511 cmd_AddParmAtOffset(ts, OPT_verbose, "-verbose", CMD_FLAG,
2512 CMD_OPTIONAL, "display lots of information");
2513 cmd_AddParmAtOffset(ts, OPT_rmtsys, "-rmtsys", CMD_FLAG,
2514 CMD_OPTIONAL, "start NFS rmtsysd program");
2515 cmd_AddParmAtOffset(ts, OPT_debug, "-debug", CMD_FLAG,
2516 CMD_OPTIONAL, "display debug info");
2517 cmd_AddParmAtOffset(ts, OPT_chunksize, "-chunksize", CMD_SINGLE,
2518 CMD_OPTIONAL, "log(2) of chunk size");
2519 cmd_AddParmAtOffset(ts, OPT_dcache, "-dcache", CMD_SINGLE,
2520 CMD_OPTIONAL, "number of dcache entries");
2521 cmd_AddParmAtOffset(ts, OPT_volumes, "-volumes", CMD_SINGLE,
2522 CMD_OPTIONAL, "number of volume entries");
2523 cmd_AddParmAtOffset(ts, OPT_biods, "-biods", CMD_SINGLE,
2524 CMD_OPTIONAL, "number of bkg I/O daemons (aix vm)");
2525 cmd_AddParmAtOffset(ts, OPT_prealloc, "-prealloc", CMD_SINGLE,
2526 CMD_OPTIONAL, "number of 'small' preallocated blocks");
2527 cmd_AddParmAtOffset(ts, OPT_confdir, "-confdir", CMD_SINGLE,
2528 CMD_OPTIONAL, "configuration directory");
2529 cmd_AddParmAtOffset(ts, OPT_logfile, "-logfile", CMD_SINGLE,
2530 CMD_OPTIONAL, "Place to keep the CM log");
2531 cmd_AddParmAtOffset(ts, OPT_waitclose, "-waitclose", CMD_FLAG,
2532 CMD_OPTIONAL, "make close calls synchronous");
2533 cmd_AddParmAtOffset(ts, OPT_shutdown, "-shutdown", CMD_FLAG,
2534 CMD_OPTIONAL, "Shutdown all afs state");
2535 cmd_AddParmAtOffset(ts, OPT_peerstats, "-enable_peer_stats", CMD_FLAG,
2536 CMD_OPTIONAL, "Collect rpc statistics by peer");
2537 cmd_AddParmAtOffset(ts, OPT_processstats, "-enable_process_stats",
2538 CMD_FLAG, CMD_OPTIONAL, "Collect rpc statistics for this process");
2539 cmd_AddParmAtOffset(ts, OPT_memallocsleep, "-mem_alloc_sleep",
2540 CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2541 "Allow sleeps when allocating memory cache");
2542 cmd_AddParmAtOffset(ts, OPT_afsdb, "-afsdb", CMD_FLAG,
2543 CMD_OPTIONAL, "Enable AFSDB support");
2544 cmd_AddParmAtOffset(ts, OPT_filesdir, "-files_per_subdir", CMD_SINGLE,
2546 "log(2) of the number of cache files per "
2547 "cache subdirectory");
2548 cmd_AddParmAtOffset(ts, OPT_dynroot, "-dynroot", CMD_FLAG,
2549 CMD_OPTIONAL, "Enable dynroot support");
2550 cmd_AddParmAtOffset(ts, OPT_fakestat, "-fakestat", CMD_FLAG,
2552 "Enable fakestat support for cross-cell mounts");
2553 cmd_AddParmAtOffset(ts, OPT_fakestatall, "-fakestat-all", CMD_FLAG,
2555 "Enable fakestat support for all mounts");
2556 cmd_AddParmAtOffset(ts, OPT_nomount, "-nomount", CMD_FLAG,
2557 CMD_OPTIONAL, "Do not mount AFS");
2558 cmd_AddParmAtOffset(ts, OPT_backuptree, "-backuptree", CMD_FLAG,
2560 "Prefer backup volumes for mountpoints in backup "
2562 cmd_AddParmAtOffset(ts, OPT_rxbind, "-rxbind", CMD_FLAG,
2564 "Bind the Rx socket (one interface only)");
2565 cmd_AddParmAtOffset(ts, OPT_settime, "-settime", CMD_FLAG,
2566 CMD_OPTIONAL, "set the time");
2567 cmd_AddParmAtOffset(ts, OPT_rxpck, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2568 "set rx_extraPackets to this value");
2569 cmd_AddParmAtOffset(ts, OPT_splitcache, "-splitcache", CMD_SINGLE,
2571 "Percentage RW versus RO in cache (specify as 60/40)");
2572 cmd_AddParmAtOffset(ts, OPT_nodynvcache, "-disable-dynamic-vcaches",
2573 CMD_FLAG, CMD_OPTIONAL,
2574 "disable stat/vcache cache growing as needed");
2575 cmd_AddParmAtOffset(ts, OPT_rxmaxmtu, "-rxmaxmtu", CMD_SINGLE,
2576 CMD_OPTIONAL, "set rx max MTU to use");
2577 cmd_AddParmAtOffset(ts, OPT_dynrootsparse, "-dynroot-sparse", CMD_FLAG,
2579 "Enable dynroot support with minimal cell list");
2580 cmd_AddParmAtOffset(ts, OPT_rxmaxfrags, "-rxmaxfrags", CMD_SINGLE,
2582 "Set the maximum number of UDP fragments Rx should "
2583 "send/receive per Rx packet");
2587 afsd_parse(int argc, char **argv)
2589 return cmd_Dispatch(argc, argv);
2593 * entry point for calling a syscall from another proc/thread.
2595 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
2598 * @retval NULL always
2601 call_syscall_thread(void *rock)
2603 struct afsd_syscall_args *args = rock;
2607 afsd_set_rx_rtpri();
2610 code = afsd_call_syscall(args);
2611 if (code && args->syscall == AFSOP_START_CS) {
2612 printf("%s: No check server daemon in client.\n", args->rn);
2621 afsd_syscall_populate(struct afsd_syscall_args *args, int syscall, va_list ap)
2623 afsd_syscall_param_t *params;
2625 memset(args, 0, sizeof(struct afsd_syscall_args));
2627 args->syscall = syscall;
2628 params = args->params;
2631 case AFSOP_RXEVENT_DAEMON:
2632 case AFSOP_CLOSEWAIT:
2633 case AFSOP_START_AFS:
2634 case AFSOP_START_CS:
2635 case AFSOP_START_TRUNCDAEMON:
2637 case AFSOP_START_BKG:
2638 case AFSOP_SHUTDOWN:
2639 case AFSOP_SET_RXPCK:
2640 case AFSOP_BASIC_INIT:
2641 case AFSOP_SET_RXMAXFRAGS:
2642 case AFSOP_SET_RXMAXMTU:
2643 case AFSOP_SET_DYNROOT:
2644 case AFSOP_SET_FAKESTAT:
2645 case AFSOP_SET_BACKUPTREE:
2646 case AFSOP_BUCKETPCT:
2648 case AFSOP_SET_RMTSYS_FLAG:
2649 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2651 case AFSOP_SET_THISCELL:
2652 case AFSOP_ROOTVOLUME:
2653 case AFSOP_VOLUMEINFO:
2654 case AFSOP_CACHEFILE:
2655 case AFSOP_CACHEINFO:
2656 case AFSOP_CACHEINIT:
2657 case AFSOP_CELLINFO:
2658 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2660 case AFSOP_ADDCELLALIAS:
2661 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2662 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2664 case AFSOP_AFSDB_HANDLER:
2665 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2666 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2667 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2669 case AFSOP_BKG_HANDLER:
2670 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2671 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2672 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2674 case AFSOP_RXLISTENER_DAEMON:
2675 case AFSOP_START_RXCALLBACK:
2676 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2677 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2678 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2680 case AFSOP_ADVISEADDR:
2681 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, int)));
2682 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2683 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2684 params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2686 case AFSOP_ADDCELL2:
2687 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2688 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2689 params[2] = CAST_SYSCALL_PARAM((va_arg(ap, afs_int32)));
2690 params[3] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2692 case AFSOP_CACHEINODE:
2693 #if defined AFS_SGI62_ENV
2695 afs_int64 tmp = va_arg(ap, afs_int64);
2696 params[0] = CAST_SYSCALL_PARAM((afs_uint32)(tmp >> 32));
2697 params[1] = CAST_SYSCALL_PARAM((afs_uint32)(tmp & 0xffffffff));
2700 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32)));
2703 case AFSOP_SEED_ENTROPY:
2704 params[0] = CAST_SYSCALL_PARAM((va_arg(ap, void *)));
2705 params[1] = CAST_SYSCALL_PARAM((va_arg(ap, afs_uint32)));
2708 printf("Unknown syscall enountered: %d\n", syscall);
2714 * common code for calling a syscall in another proc/thread.
2716 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
2717 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
2718 * let it run in the background
2719 * @param[in] rn the name of the running program
2720 * @param[in] syscall syscall to run
2723 fork_syscall_impl(int rx, int wait, const char *rn, int syscall, va_list ap)
2725 struct afsd_syscall_args *args;
2727 args = malloc(sizeof(*args));
2728 afsd_syscall_populate(args, syscall, ap);
2732 afsd_fork(wait, call_syscall_thread, args);
2736 * call a syscall in another process or thread.
2739 fork_syscall(const char *rn, int syscall, ...)
2743 va_start(ap, syscall);
2744 fork_syscall_impl(0, 0, rn, syscall, ap);
2749 * call a syscall in another process or thread, and give it RX priority.
2752 fork_rx_syscall(const char *rn, int syscall, ...)
2756 va_start(ap, syscall);
2757 fork_syscall_impl(1, 0, rn, syscall, ap);
2761 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
2763 * call a syscall in another process or thread, give it RX priority, and wait
2764 * for it to finish before returning.
2767 fork_rx_syscall_wait(const char *rn, int syscall, ...)
2771 va_start(ap, syscall);
2772 fork_syscall_impl(1, 1, rn, syscall, ap);
2775 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */
2778 afsd_syscall(int syscall, ...)
2781 struct afsd_syscall_args args;
2783 va_start(ap, syscall);
2784 afsd_syscall_populate(&args, syscall, ap);
2787 return afsd_call_syscall(&args);