2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * Information Technology Center
15 * The Andrew File System startup process. It is responsible for
16 * reading and parsing the various configuration files, starting up
17 * the kernel processes required by AFS and feeding the configuration
18 * information to the kernel.
20 * Recognized flags are:
21 * -blocks The number of blocks available in the workstation cache.
22 * -files The target number of files in the workstation cache (Default:
24 * -rootvol The name of the root volume to use.
25 * -stat The number of stat cache entries.
26 * -hosts List of servers to check for volume location info FOR THE
28 * -memcache Use an in-memory cache rather than disk.
29 * -cachedir The base directory for the workstation cache.
30 * -mountdir The directory on which the AFS is to be mounted.
31 * -confdir The configuration directory .
32 * -nosettime Don't keep checking the time to avoid drift (default).
33 * -settime Keep checking the time to avoid drift.
34 * -rxmaxmtu Set the max mtu to help with VPN issues.
36 * -disable-dynamic-vcaches Disable the use of -stat value as the starting size of
37 * the size of the vcache/stat cache pool,
38 * but increase that pool dynamically as needed.
39 * -debug Print out additional debugging info.
40 * -kerndev [OBSOLETE] The kernel device for AFS.
41 * -dontfork [OBSOLETE] Don't fork off as a new process.
42 * -daemons The number of background daemons to start (Default: 2).
43 * -rmtsys Also fires up an afs remote sys call (e.g. pioctl, setpag)
45 * -chunksize [n] 2^n is the chunksize to be used. 0 is default.
46 * -dcache The number of data cache entries.
47 * -biods Number of bkg I/O daemons (AIX3.1 only)
48 * -prealloc Number of preallocated "small" memory blocks
49 * -logfile [OBSOLETE] Place where to put the logfile (default in
51 * -waitclose make close calls always synchronous (slows em down, tho)
52 * -files_per_subdir [n] number of files per cache subdir. (def=2048)
53 * -shutdown Shutdown afs daemons
54 *---------------------------------------------------------------------------*/
56 #include <afsconfig.h>
57 #include <afs/param.h>
59 #ifdef IGNORE_SOME_GCC_WARNINGS
60 # pragma GCC diagnostic warning "-Wdeprecated-declarations"
70 #include <potpourri.h>
71 #include <afs/afsutil.h>
78 #include <sys/types.h>
87 #ifdef HAVE_SYS_PARAM_H
88 #include <sys/param.h>
91 #ifdef HAVE_SYS_FS_TYPES_H
92 #include <sys/fs_types.h>
95 #ifdef HAVE_SYS_MOUNT_H
96 #include <sys/mount.h>
99 #ifdef HAVE_SYS_FCNTL_H
100 #include <sys/fcntl.h>
103 #ifdef HAVE_SYS_MNTTAB_H
104 #include <sys/mnttab.h>
107 #ifdef HAVE_SYS_MNTENT_H
108 #include <sys/mntent.h>
115 #ifdef HAVE_SYS_MOUNT_H
116 #include <sys/mount.h>
119 #ifdef HAVE_SYS_VFS_H
123 #ifdef HAVE_SYS_FSTYP_H
124 #include <sys/fstyp.h>
135 #include <netinet/in.h>
136 #include <afs/afs_args.h>
137 #include <afs/cellconfig.h>
139 #include <afs/afssyscalls.h>
140 #include <afs/afsutil.h>
141 #include <afs/sys_prototypes.h>
147 #include <libdwarf.h>
148 void set_staticaddrs(void);
149 #endif /* AFS_SGI61_ENV */
150 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
152 #include <symconst.h>
158 #ifdef AFS_DARWIN_ENV
159 #ifdef AFS_DARWIN80_ENV
160 #include <sys/ioctl.h>
161 #include <sys/xattr.h>
163 #include <mach/mach.h>
164 #include <mach/mach_port.h>
165 #include <mach/mach_interface.h>
166 #include <mach/mach_init.h>
168 #include <CoreFoundation/CoreFoundation.h>
170 #include <SystemConfiguration/SystemConfiguration.h>
171 #include <SystemConfiguration/SCDynamicStore.h>
173 #include <IOKit/pwr_mgt/IOPMLib.h>
174 #include <IOKit/IOMessage.h>
176 static io_connect_t root_port;
177 static IONotificationPortRef notify;
178 static io_object_t iterator;
179 static CFRunLoopSourceRef source;
181 static int event_pid;
183 #endif /* AFS_DARWIN_ENV */
186 #include <sys/statvfs.h>
188 #if defined(AFS_SUN_ENV)
191 #if !defined(AFS_OSF_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
192 #include <sys/statfs.h>
201 #define CACHEINFOFILE "cacheinfo"
202 #define DCACHEFILE "CacheItems"
203 #define VOLINFOFILE "VolumeItems"
204 #define CELLINFOFILE "CellItems"
206 #define MAXIPADDRS 1024
208 char LclCellName[64];
210 #define MAX_CACHE_LOOPS 4
214 * Internet address (old style... should be updated). This was pulled out of the old 4.2
215 * version of <netinet/in.h>, since it's still useful.
220 u_char s_b1, s_b2, s_b3, s_b4;
227 #define s_host S_un.S_un_b.s_b2 /* host on imp */
228 #define s_net S_un.S_un_b.s_b1 /* network */
229 #define s_imp S_un.S_un_w.s_w2 /* imp */
230 #define s_impno S_un.S_un_b.s_b4 /* imp # */
231 #define s_lh S_un.S_un_b.s_b3 /* logical host */
234 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
235 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
236 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
237 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
238 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
241 * Global configuration variables.
243 afs_int32 enable_rxbind = 0;
244 afs_int32 afs_shutdown = 0;
245 afs_int32 cacheBlocks; /*Num blocks in the cache */
246 afs_int32 cacheFiles; /*Optimal # of files in workstation cache */
249 afs_int32 cacheStatEntries; /*Number of stat cache entries */
250 char cacheBaseDir[1024]; /*Where the workstation AFS cache lives */
251 char confDir[1024]; /*Where the workstation AFS configuration lives */
252 char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE */
253 char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE */
254 char fullpn_CellInfoFile[1024]; /*Full pathanem of CELLINFOFILE */
255 char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO */
256 char fullpn_VFile[1024]; /*Full pathname of data cache files */
257 char *vFilePtr; /*Ptr to the number part of above pathname */
258 int sawCacheMountDir = 0; /* from cmd line */
259 int sawCacheBaseDir = 0;
260 int sawCacheBlocks = 0;
261 int sawDCacheSize = 0;
263 int sawCacheStatEntries = 0;
264 char afsd_cacheMountDir[1024]; /*Mount directory for AFS */
265 char rootVolume[64] = "root.afs"; /*AFS root volume name */
266 afs_int32 cacheSetTime = FALSE; /*Keep checking time to avoid drift? */
267 afs_int32 isHomeCell; /*Is current cell info for the home cell? */
269 int createAndTrunc = O_RDWR | O_CREAT | O_TRUNC; /*Create & truncate on open */
271 int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open */
273 int ownerRWmode = 0600; /*Read/write OK by owner */
274 static int filesSet = 0; /*True if number of files explicitly set */
275 static int nFilesPerDir = 2048; /* # files per cache dir */
276 #if defined(AFS_CACHE_BYPASS)
277 #define AFSD_NDAEMONS 4
279 #define AFSD_NDAEMONS 2
281 static int nDaemons = AFSD_NDAEMONS; /* Number of background daemons */
282 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
283 static int dCacheSize; /* # of dcache entries */
284 static int vCacheSize = 200; /* # of volume cache entries */
285 static int rootVolSet = 0; /*True if root volume name explicitly set */
286 int addrNum; /*Cell server address index being printed */
287 static int cacheFlags = 0; /*Flags to cache manager */
289 static int nBiods = 5; /* AIX3.1 only */
291 static int preallocs = 400; /* Def # of allocated memory blocks */
292 static int enable_peer_stats = 0; /* enable rx stats */
293 static int enable_process_stats = 0; /* enable rx stats */
294 static int enable_afsdb = 0; /* enable AFSDB support */
295 static int enable_dynroot = 0; /* enable dynroot support */
296 static int enable_fakestat = 0; /* enable fakestat support */
297 static int enable_backuptree = 0; /* enable backup tree support */
298 static int enable_nomount = 0; /* do not mount */
299 static int enable_splitcache = 0;
300 int afsd_dynamic_vcaches = 0; /* Enable dynamic-vcache support */
301 int afsd_verbose = 0; /*Are we being chatty? */
302 int afsd_debug = 0; /*Are we printing debugging info? */
303 int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
304 int rxmaxmtu = 0; /* Are we forcing a limit on the mtu? */
307 #define AFSD_INO_T ino64_t
309 #define AFSD_INO_T afs_uint32
311 struct afsd_file_list {
313 struct afsd_file_list *next;
315 struct afsd_file_list **cache_dir_filelist = NULL;
316 int *cache_dir_list = NULL; /* Array of cache subdirs */
317 int *dir_for_V = NULL; /* Array: dir of each cache file.
318 * -1: file does not exist
319 * -2: file exists in top-level
320 * >=0: file exists in Dxxx
322 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
323 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
326 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing? */
327 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing? */
328 int missing_CellInfoFile = 1; /*Is the CELLINFOFILE missing? */
329 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
330 struct afs_cacheParams cparams; /* params passed to cache manager */
332 int PartSizeOverflow(char *path, int cs);
334 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
335 static void fork_rx_syscall_wait();
337 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
338 static void fork_rx_syscall();
340 static void fork_syscall();
342 #ifdef AFS_DARWIN_ENV
344 afsd_sleep_callback(void * refCon, io_service_t service,
345 natural_t messageType, void * messageArgument )
347 switch (messageType) {
348 case kIOMessageCanSystemSleep:
349 /* Idle sleep is about to kick in; can
350 prevent sleep by calling IOCancelPowerChange, otherwise
351 if we don't ack in 30s the system sleeps anyway */
354 IOAllowPowerChange(root_port, (long)messageArgument);
357 case kIOMessageSystemWillSleep:
358 /* The system WILL go to sleep. Ack or suffer delay */
360 IOAllowPowerChange(root_port, (long)messageArgument);
363 case kIOMessageSystemWillRestart:
364 /* The system WILL restart. Ack or suffer delay */
366 IOAllowPowerChange(root_port, (long)messageArgument);
369 case kIOMessageSystemWillPowerOn:
370 case kIOMessageSystemHasPoweredOn:
371 /* coming back from sleep */
373 IOAllowPowerChange(root_port, (long)messageArgument);
377 IOAllowPowerChange(root_port, (long)messageArgument);
383 afsd_update_addresses(CFRunLoopTimerRef timer, void *info)
385 /* parse multihomed address files */
386 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
392 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
393 AFSDIR_CLIENT_NETINFO_FILEPATH,
394 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
397 /* Note we're refreshing */
398 code = code | 0x40000000;
399 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
401 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
405 /* This function is called when the system's ip addresses may have changed. */
407 afsd_ipaddr_callback (SCDynamicStoreRef store, CFArrayRef changed_keys, void *info)
409 CFRunLoopTimerRef timer;
411 timer = CFRunLoopTimerCreate (NULL, CFAbsoluteTimeGetCurrent () + 1.0,
412 0.0, 0, 0, afsd_update_addresses, NULL);
413 CFRunLoopAddTimer (CFRunLoopGetCurrent (), timer,
414 kCFRunLoopDefaultMode);
419 afsd_event_cleanup(int signo) {
421 CFRunLoopRemoveSource(CFRunLoopGetCurrent(), source, kCFRunLoopDefaultMode);
423 IODeregisterForSystemPower(&iterator);
424 IOServiceClose(root_port);
425 IONotificationPortDestroy(notify);
430 /* Adapted from "Living in a Dynamic TCP/IP Environment" technote. */
432 afsd_install_events(void)
434 SCDynamicStoreContext ctx = {0};
435 SCDynamicStoreRef store;
437 root_port = IORegisterForSystemPower(0,¬ify,afsd_sleep_callback,&iterator);
440 CFRunLoopAddSource(CFRunLoopGetCurrent(),
441 IONotificationPortGetRunLoopSource(notify),
442 kCFRunLoopDefaultMode);
446 store = SCDynamicStoreCreate (NULL,
447 CFSTR ("AddIPAddressListChangeCallbackSCF"),
448 afsd_ipaddr_callback, &ctx);
453 /* Request IPV4 address change notification */
454 keys[0] = (SCDynamicStoreKeyCreateNetworkServiceEntity
455 (NULL, kSCDynamicStoreDomainState,
456 kSCCompAnyRegex, kSCEntNetIPv4));
459 /* This should tell us when the hostname(s) change. do we care? */
460 keys[N] = SCDynamicStoreKeyCreateHostNames (NULL);
463 if (keys[0] != NULL) {
464 CFArrayRef pattern_array;
466 pattern_array = CFArrayCreate (NULL, keys, 1,
467 &kCFTypeArrayCallBacks);
469 if (pattern_array != NULL)
471 SCDynamicStoreSetNotificationKeys (store, NULL, pattern_array);
472 source = SCDynamicStoreCreateRunLoopSource (NULL, store, 0);
474 CFRelease (pattern_array);
484 if (source != NULL) {
485 CFRunLoopAddSource (CFRunLoopGetCurrent(),
486 source, kCFRunLoopDefaultMode);
489 signal(SIGTERM, afsd_event_cleanup);
495 /* ParseArgs is now obsolete, being handled by cmd */
497 /*------------------------------------------------------------------------------
501 * Open the file containing the description of the workstation's AFS cache
502 * and pull out its contents. The format of this file is as follows:
504 * cacheMountDir:cacheBaseDir:cacheBlocks
510 * 0 if everything went well,
514 * Nothing interesting.
518 *---------------------------------------------------------------------------*/
521 ParseCacheInfoFile(void)
523 static char rn[] = "ParseCacheInfoFile"; /*This routine's name */
524 FILE *cachefd; /*Descriptor for cache info file */
525 int parseResult; /*Result of our fscanf() */
526 afs_int32 tCacheBlocks;
527 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
530 printf("%s: Opening cache info file '%s'...\n", rn, fullpn_CacheInfo);
532 cachefd = fopen(fullpn_CacheInfo, "r");
534 printf("%s: Can't read cache info file '%s'\n", rn, fullpn_CacheInfo);
539 * Parse the contents of the cache info file. All chars up to the first
540 * colon are the AFS mount directory, all chars to the next colon are the
541 * full path name of the workstation cache directory and all remaining chars
542 * represent the number of blocks in the cache.
544 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
546 fscanf(cachefd, "%1024[^:]:%1024[^:]:%d", tCacheMountDir,
547 tCacheBaseDir, &tCacheBlocks);
550 * Regardless of how the parse went, we close the cache info file.
554 if (parseResult == EOF || parseResult < 3) {
555 printf("%s: Format error in cache info file!\n", rn);
556 if (parseResult == EOF)
557 printf("\tEOF encountered before any field parsed.\n");
559 printf("\t%d out of 3 fields successfully parsed.\n",
565 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t';
567 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t';
569 /* now copy in the fields not explicitly overridden by cmd args */
570 if (!sawCacheMountDir)
571 strcpy(afsd_cacheMountDir, tmd);
572 if (!sawCacheBaseDir)
573 strcpy(cacheBaseDir, tbd);
575 cacheBlocks = tCacheBlocks;
578 printf("%s: Cache info file successfully parsed:\n", rn);
580 ("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
581 tmd, tbd, tCacheBlocks);
583 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
584 return (PartSizeOverflow(tbd, cacheBlocks));
591 * All failures to open the partition are ignored. Also if the cache dir
592 * isn't a mounted partition it's also ignored since we can't guarantee
593 * what will be stored afterwards. Too many if's. This is now purely
594 * advisory. ODS with over 2G partition also gives warning message.
597 * 0 if everything went well,
601 PartSizeOverflow(char *path, int cs)
604 afs_int64 totalblks, mint;
606 struct statvfs statbuf;
608 if (statvfs(path, &statbuf) != 0) {
611 ("statvfs failed on %s; skip checking for adequate partition space\n",
615 totalblks = statbuf.f_blocks;
616 bsize = statbuf.f_frsize;
618 if (strcmp(statbuf.f_basetype, "jfs")) {
619 fprintf(stderr, "Cache filesystem '%s' must be jfs (now %s)\n",
620 path, statbuf.f_basetype);
623 #endif /* AFS_AIX51_ENV */
625 #else /* AFS_HAVE_STATVFS */
626 struct statfs statbuf;
628 if (statfs(path, &statbuf) < 0) {
631 ("statfs failed on %s; skip checking for adequate partition space\n",
635 totalblks = statbuf.f_blocks;
636 bsize = statbuf.f_bsize;
639 return 0; /* success */
641 /* now free and totalblks are in fragment units, but we want them in 1K units */
643 totalblks *= (bsize / 1024);
645 totalblks /= (1024 / bsize);
648 mint = totalblks / 100 * 95;
651 ("Cache size (%d) must be less than 95%% of partition size (which is %lld). Lower cache size\n",
659 /*-----------------------------------------------------------------------------
663 * Given the final component of a filename expected to be a data cache file,
664 * return the integer corresponding to the file. Note: we reject names that
665 * are not a ``V'' followed by an integer. We also reject those names having
666 * the right format but lying outside the range [0..cacheFiles-1].
669 * fname : Char ptr to the filename to parse.
670 * max : integer for the highest number to accept
673 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
677 * Nothing interesting.
681 *---------------------------------------------------------------------------*/
684 doGetXFileNumber(char *fname, char filechar, int maxNum)
686 int computedVNumber; /*The computed file number we return */
687 int filenameLen; /*Number of chars in filename */
688 int currDigit; /*Current digit being processed */
691 * The filename must have at least two characters, the first of which must be a ``filechar''
692 * and the second of which cannot be a zero unless the file is exactly two chars long.
694 filenameLen = strlen(fname);
697 if (fname[0] != filechar)
699 if ((filenameLen > 2) && (fname[1] == '0'))
703 * Scan through the characters in the given filename, failing immediately if a non-digit
706 for (currDigit = 1; currDigit < filenameLen; currDigit++)
707 if (isdigit(fname[currDigit]) == 0)
711 * All relevant characters are digits. Pull out the decimal number they represent.
712 * Reject it if it's out of range, otherwise return it.
714 computedVNumber = atoi(++fname);
715 if (computedVNumber < cacheFiles)
716 return (computedVNumber);
722 GetVFileNumber(char *fname, int maxFile)
724 return doGetXFileNumber(fname, 'V', maxFile);
728 GetDDirNumber(char *fname, int maxDir)
730 return doGetXFileNumber(fname, 'D', maxDir);
734 /*-----------------------------------------------------------------------------
738 * Given a full pathname for a file we need to create for the workstation AFS
739 * cache, go ahead and create the file.
742 * fname : Full pathname of file to create.
743 * statp : A pointer to a stat buffer which, if NON-NULL, will be
747 * 0 iff the file was created,
751 * The given cache file has been found to be missing.
755 *---------------------------------------------------------------------------*/
758 CreateCacheSubDir(char *basename, int dirNum)
760 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
764 /* Build the new cache subdirectory */
765 sprintf(dir, "%s/D%d", basename, dirNum);
768 printf("%s: Creating cache subdir '%s'\n", rn, dir);
770 if ((ret = mkdir(dir, 0700)) != 0) {
771 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, dir,
777 /* Mark this directory as created */
778 cache_dir_list[dirNum] = 0;
780 /* And return success */
785 SetNoBackupAttr(char *fullpn)
787 #ifdef AFS_DARWIN80_ENV
790 ret = setxattr(fullpn, "com.apple.metadata:com_apple_backup_excludeItem",
791 "com.apple.backupd", strlen("com.apple.backupd"), 0,
796 fprintf(stderr, "afsd: Warning: failed to set attribute to preclude cache backup: %s\n", strerror(errno));
803 MoveCacheFile(char *basename, int fromDir, int toDir, int cacheFile,
806 static char rn[] = "MoveCacheFile";
807 char from[1024], to[1024];
810 if (cache_dir_list[toDir] < 0
811 && (ret = CreateCacheSubDir(basename, toDir))) {
812 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
816 /* Build the from,to dir */
818 /* old-style location */
819 snprintf(from, sizeof(from), "%s/V%d", basename, cacheFile);
821 snprintf(from, sizeof(from), "%s/D%d/V%d", basename, fromDir,
825 snprintf(to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
828 printf("%s: Moving cacheFile from '%s' to '%s'\n", rn, from, to);
830 if ((ret = rename(from, to)) != 0) {
831 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n", rn,
832 from, to, ret, errno);
837 /* Reset directory pointer; fix file counts */
838 dir_for_V[cacheFile] = toDir;
839 cache_dir_list[toDir]++;
840 if (fromDir < maxDir && fromDir >= 0)
841 cache_dir_list[fromDir]--;
847 CreateCacheFile(char *fname, struct stat *statp)
849 static char rn[] = "CreateCacheFile"; /*Routine name */
850 int cfd; /*File descriptor to AFS cache file */
851 int closeResult; /*Result of close() */
854 printf("%s: Creating cache file '%s'\n", rn, fname);
855 cfd = open(fname, createAndTrunc, ownerRWmode);
857 printf("%s: Can't create '%s', error return is %d (%d)\n", rn, fname,
862 closeResult = fstat(cfd, statp);
865 ("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
870 closeResult = close(cfd);
873 ("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
882 CreateFileIfMissing(char *fullpn, int missing)
885 if (CreateCacheFile(fullpn, NULL))
886 printf("CreateFileIfMissing: Can't create '%s'\n", fullpn);
891 UnlinkUnwantedFile(char *rn, char *fullpn_FileToDelete, char *fileToDelete)
893 if (unlink(fullpn_FileToDelete)) {
894 if ((errno == EISDIR || errno == EPERM) && *fileToDelete == 'D') {
895 if (rmdir(fullpn_FileToDelete)) {
896 printf("%s: Can't rmdir '%s', errno is %d\n", rn,
897 fullpn_FileToDelete, errno);
900 printf("%s: Can't unlink '%s', errno is %d\n", rn,
901 fullpn_FileToDelete, errno);
905 /*-----------------------------------------------------------------------------
909 * Sweep through the AFS cache directory, recording the inode number for
910 * each valid data cache file there. Also, delete any file that doesn't belong
911 * in the cache directory during this sweep, and remember which of the other
912 * residents of this directory were seen. After the sweep, we create any data
913 * cache files that were missing.
916 * vFilesFound : Set to the number of data cache files found.
919 * 0 if everything went well,
923 * This routine may be called several times. If the number of data cache files
924 * found is less than the global cacheFiles, then the caller will need to call it
925 * again to record the inodes of the missing zero-length data cache files created
926 * in the previous call.
929 * Fills up the global inode_for_V array, may create and/or delete files as
931 *---------------------------------------------------------------------------*/
935 doSweepAFSCache(int *vFilesFound,
936 char *directory, /* /path/to/cache/directory */
937 int dirNum, /* current directory number */
938 int maxDir) /* maximum directory number */
940 static char rn[] = "doSweepAFSCache"; /* Routine Name */
941 char fullpn_FileToDelete[1024]; /*File to be deleted from cache */
942 char *fileToDelete; /*Ptr to last component of above */
943 DIR *cdirp; /*Ptr to cache directory structure */
945 struct dirent64 *currp; /*Current directory entry */
947 struct dirent *currp; /*Current directory entry */
949 int vFileNum; /*Data cache file's associated number */
950 int thisDir; /* A directory number */
954 printf("%s: Opening cache directory '%s'\n", rn, directory);
956 if (chmod(directory, 0700)) { /* force it to be 700 */
957 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn,
961 cdirp = opendir(directory);
962 if (cdirp == (DIR *) 0) {
963 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
968 * Scan the directory entries, remembering data cache file inodes
969 * and the existance of other important residents. Recurse into
970 * the data subdirectories.
972 * Delete all files and directories that don't belong here.
974 sprintf(fullpn_FileToDelete, "%s/", directory);
975 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
978 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
980 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
984 printf("%s: Current directory entry:\n", rn);
985 #if defined(AFS_SGI62_ENV) || defined(AFS_DARWIN90_ENV)
986 printf("\tinode=%" AFS_INT64_FMT ", reclen=%d, name='%s'\n", currp->d_ino,
987 currp->d_reclen, currp->d_name);
988 #elif defined(AFS_DFBSD_ENV)
989 printf("\tinode=%ld, name='%s'\n", (long)currp->d_ino, currp->d_name);
991 printf("\tinode=%ld, reclen=%d, name='%s'\n", (long)currp->d_ino,
992 currp->d_reclen, currp->d_name);
997 * If dirNum < 0, we are a top-level cache directory and should
998 * only contain sub-directories and other sundry files. Therefore,
999 * V-files are valid only if dirNum >= 0, and Directories are only
1000 * valid if dirNum < 0.
1003 if (*(currp->d_name) == 'V'
1004 && ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >=
1007 * Found a valid data cache filename. Remember this
1008 * file's inode, directory, and bump the number of files found
1009 * total and in this directory.
1011 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1012 inode_for_V[vFileNum] = currp->d_ino;
1014 dir_for_V[vFileNum] = dirNum; /* remember this directory */
1017 /* If we're in a real subdir, mark this file to be moved
1018 * if we've already got too many files in this directory
1020 assert(dirNum >= 0);
1021 cache_dir_list[dirNum]++; /* keep directory's file count */
1022 if (cache_dir_list[dirNum] > nFilesPerDir) {
1023 /* Too many files -- add to filelist */
1024 struct afsd_file_list *tmp = (struct afsd_file_list *)
1025 malloc(sizeof(*tmp));
1028 ("%s: MALLOC FAILED allocating file_list entry\n",
1031 tmp->fileNum = vFileNum;
1032 tmp->next = cache_dir_filelist[dirNum];
1033 cache_dir_filelist[dirNum] = tmp;
1038 } else if (dirNum < 0 && (*(currp->d_name) == 'D')
1039 && GetDDirNumber(currp->d_name, 1 << 30) >= 0) {
1041 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
1042 /* Found a valid cachefile sub-Directory. Remember this number
1043 * and recurse into it. Note that subdirs cannot have subdirs.
1046 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1 << 30)) >=
1048 /* This directory is going away, but figure out if there
1049 * are any cachefiles in here that should be saved by
1050 * moving them to other cache directories. This directory
1051 * will be removed later.
1056 /* Save the highest directory number we've seen */
1057 if (vFileNum > highDir)
1060 /* If this directory is staying, be sure to mark it as 'found' */
1062 cache_dir_list[vFileNum] = 0;
1064 /* Print the dirname for recursion */
1065 sprintf(fileToDelete, "%s", currp->d_name);
1067 /* Note: vFileNum is the directory number */
1069 doSweepAFSCache(vFilesFound, fullpn_FileToDelete, vFileNum,
1070 (retval == 1 ? 0 : -1));
1072 printf("%s: Recursive sweep failed on directory %s\n", rn,
1076 } else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
1078 * Found the file holding the dcache entries.
1080 missing_DCacheFile = 0;
1081 SetNoBackupAttr(fullpn_DCacheFile);
1082 } else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
1084 * Found the file holding the volume info.
1086 missing_VolInfoFile = 0;
1087 SetNoBackupAttr(fullpn_VolInfoFile);
1088 } else if (dirNum < 0 && strcmp(currp->d_name, CELLINFOFILE) == 0) {
1090 * Found the file holding the cell info.
1092 missing_CellInfoFile = 0;
1093 SetNoBackupAttr(fullpn_CellInfoFile);
1094 } else if ((strcmp(currp->d_name, ".") == 0)
1095 || (strcmp(currp->d_name, "..") == 0) ||
1096 #ifdef AFS_DECOSF_ENV
1097 /* these are magic AdvFS files */
1098 (strcmp(currp->d_name, ".tags") == 0)
1099 || (strcmp(currp->d_name, "quota.user") == 0)
1100 || (strcmp(currp->d_name, "quota.group") == 0) ||
1102 #ifdef AFS_LINUX22_ENV
1103 /* this is the ext3 journal file */
1104 (strcmp(currp->d_name, ".journal") == 0) ||
1106 (strcmp(currp->d_name, "lost+found") == 0)) {
1108 * Don't do anything - this file is legit, and is to be left alone.
1112 * This file/directory doesn't belong in the cache. Nuke it.
1114 sprintf(fileToDelete, "%s", currp->d_name);
1116 printf("%s: Deleting '%s'\n", rn, fullpn_FileToDelete);
1117 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1124 * Create all the cache files that are missing.
1126 CreateFileIfMissing(fullpn_DCacheFile, missing_DCacheFile);
1127 CreateFileIfMissing(fullpn_VolInfoFile, missing_VolInfoFile);
1128 CreateFileIfMissing(fullpn_CellInfoFile, missing_CellInfoFile);
1130 /* ADJUST CACHE FILES */
1132 /* First, let's walk through the list of files and figure out
1133 * if there are any leftover files in extra directories or
1134 * missing files. Move the former and create the latter in
1135 * subdirs with extra space.
1138 thisDir = 0; /* Keep track of which subdir has space */
1140 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
1141 if (dir_for_V[vFileNum] == -1) {
1142 /* This file does not exist. Create it in the first
1143 * subdir that still has extra space.
1145 while (thisDir < maxDir
1146 && cache_dir_list[thisDir] >= nFilesPerDir)
1148 if (thisDir >= maxDir)
1149 printf("%s: can't find directory to create V%d\n", rn,
1153 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1154 assert(inode_for_V[vFileNum] == (AFSD_INO_T) 0);
1156 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
1158 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
1159 if (cache_dir_list[thisDir] < 0
1160 && CreateCacheSubDir(directory, thisDir))
1161 printf("%s: Can't create directory for '%s'\n", rn,
1163 if (CreateCacheFile(fullpn_VFile, &statb))
1164 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
1166 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
1167 inode_for_V[vFileNum] = statb.st_ino;
1169 dir_for_V[vFileNum] = thisDir;
1170 cache_dir_list[thisDir]++;
1173 SetNoBackupAttr(fullpn_VFile);
1176 } else if (dir_for_V[vFileNum] >= maxDir
1177 || dir_for_V[vFileNum] == -2) {
1178 /* This file needs to move; move it to the first subdir
1179 * that has extra space. (-2 means it's in the toplevel)
1181 while (thisDir < maxDir
1182 && cache_dir_list[thisDir] >= nFilesPerDir)
1184 if (thisDir >= maxDir)
1185 printf("%s: can't find directory to move V%d\n", rn,
1189 (directory, dir_for_V[vFileNum], thisDir, vFileNum,
1191 /* Cannot move. Ignore this file??? */
1198 /* At this point, we've moved all of the valid cache files
1199 * into the valid subdirs, and created all the extra
1200 * cachefiles we need to create. Next, rebalance any subdirs
1201 * with too many cache files into the directories with not
1202 * enough cache files. Note that thisDir currently sits at
1203 * the lowest subdir that _may_ have room.
1206 for (dirNum = 0; dirNum < maxDir; dirNum++) {
1207 struct afsd_file_list *thisFile;
1209 for (thisFile = cache_dir_filelist[dirNum];
1210 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
1211 thisFile = thisFile->next) {
1212 while (thisDir < maxDir
1213 && cache_dir_list[thisDir] >= nFilesPerDir)
1215 if (thisDir >= maxDir)
1216 printf("%s: can't find directory to move V%d\n", rn,
1220 (directory, dirNum, thisDir, thisFile->fileNum,
1222 /* Cannot move. Ignore this file??? */
1226 } /* for each file to move */
1227 } /* for each directory */
1229 /* Remove any directories >= maxDir -- they should be empty */
1230 for (; highDir >= maxDir; highDir--) {
1231 sprintf(fileToDelete, "D%d", highDir);
1232 UnlinkUnwantedFile(rn, fullpn_FileToDelete, fileToDelete);
1238 * Close the directory, return success.
1241 printf("%s: Closing cache directory.\n", rn);
1247 CheckCacheBaseDir(char *dir)
1249 struct stat statbuf;
1252 return "cache base dir not specified";
1254 if (stat(dir, &statbuf) != 0) {
1255 return "unable to stat cache base directory";
1258 /* might want to check here for anything else goofy, like cache pointed at a non-dedicated directory, etc */
1260 #ifdef AFS_LINUX24_ENV
1263 struct statfs statfsbuf;
1265 res = statfs(dir, &statfsbuf);
1267 return "unable to statfs cache base directory";
1269 #if !defined(LINUX_USE_FH)
1270 if (statfsbuf.f_type == 0x52654973) { /* REISERFS_SUPER_MAGIC */
1271 return "cannot use reiserfs as cache partition";
1272 } else if (statfsbuf.f_type == 0x58465342) { /* XFS_SUPER_MAGIC */
1273 return "cannot use xfs as cache partition";
1274 } else if (statfsbuf.f_type == 0x01021994) { /* TMPFS_SUPER_MAGIC */
1275 return "cannot use tmpfs as cache partition";
1276 } else if (statfsbuf.f_type != 0xEF53) {
1277 return "must use ext2 or ext3 for cache partition";
1286 struct statfs statfsbuf;
1289 res = statfs(dir, &statfsbuf);
1291 return "unable to statfs cache base directory";
1294 if (sysfs(GETFSTYP, statfsbuf.f_fsid[1], name) != 0) {
1295 return "unable to determine filesystem type for cache base dir";
1298 if (strcmp(name, "hfs")) {
1299 return "can only use hfs filesystem for cache partition on hpux";
1308 struct stat statmnt, statci;
1310 if ((stat(dir, &statci) == 0)
1311 && ((vfstab = fopen(MNTTAB, "r")) != NULL)) {
1312 while (getmntent(vfstab, &mnt) == 0) {
1313 if (strcmp(dir, mnt.mnt_mountp) != 0) {
1317 if (cp = hasmntopt(&mnt, "dev="))
1319 (int)strtol(cp + strlen("dev="), (char **)NULL,
1322 if ((rdev == 0) && (stat(mnt.mnt_mountp, &statmnt) == 0))
1323 rdev = statmnt.st_dev;
1325 if ((rdev == statci.st_dev)
1326 && (hasmntopt(&mnt, "logging") != NULL)) {
1330 "mounting a multi-use partition which contains the AFS cache with the\n\"logging\" option may deadlock your system.\n\n";
1344 SweepAFSCache(int *vFilesFound)
1346 static char rn[] = "SweepAFSCache"; /*Routine name */
1347 int maxDir = (cacheFiles + nFilesPerDir - 1) / nFilesPerDir;
1352 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1354 printf("%s: Memory Cache, no cache sweep done\n", rn);
1358 if (cache_dir_list == NULL) {
1359 cache_dir_list = (int *)malloc(maxDir * sizeof(*cache_dir_list));
1360 if (cache_dir_list == NULL) {
1361 printf("%s: Malloc Failed!\n", rn);
1364 for (i = 0; i < maxDir; i++)
1365 cache_dir_list[i] = -1; /* Does not exist */
1368 if (cache_dir_filelist == NULL) {
1369 cache_dir_filelist = (struct afsd_file_list **)
1370 malloc(maxDir * sizeof(*cache_dir_filelist));
1371 if (cache_dir_filelist == NULL) {
1372 printf("%s: Malloc Failed!\n", rn);
1375 memset(cache_dir_filelist, 0, maxDir * sizeof(*cache_dir_filelist));
1378 if (dir_for_V == NULL) {
1379 dir_for_V = (int *)malloc(cacheFiles * sizeof(*dir_for_V));
1380 if (dir_for_V == NULL) {
1381 printf("%s: Malloc Failed!\n", rn);
1384 for (i = 0; i < cacheFiles; i++)
1385 dir_for_V[i] = -1; /* Does not exist */
1388 /* Note, setting dirNum to -2 here will cause cachefiles found in
1389 * the toplevel directory to be marked in directory "-2". This
1390 * allows us to differentiate between 'file not seen' (-1) and
1391 * 'file seen in top-level' (-2). Then when we try to move the
1392 * file into a subdirectory, we know it's in the top-level instead
1393 * of some other cache subdir.
1395 return doSweepAFSCache(vFilesFound, cacheBaseDir, -2, maxDir);
1399 ConfigCell(struct afsconf_cell *aci, void *arock, struct afsconf_dir *adir)
1403 afs_int32 cellFlags = 0;
1404 afs_int32 hosts[MAXHOSTSPERCELL];
1406 /* figure out if this is the home cell */
1407 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1409 cellFlags = 2; /* not home, suid is forbidden */
1411 /* build address list */
1412 for (i = 0; i < MAXHOSTSPERCELL; i++)
1413 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1415 if (aci->linkedCell)
1416 cellFlags |= 4; /* Flag that linkedCell arg exists,
1417 * for upwards compatibility */
1419 /* configure one cell */
1420 code = afsd_call_syscall(AFSOP_ADDCELL2, hosts, /* server addresses */
1421 aci->name, /* cell name */
1422 cellFlags, /* is this the home cell? */
1423 aci->linkedCell); /* Linked cell, if any */
1425 printf("Adding cell '%s': error %d\n", aci->name, code);
1430 ConfigCellAlias(struct afsconf_cellalias *aca,
1431 void *arock, struct afsconf_dir *adir)
1433 /* push the alias into the kernel */
1434 afsd_call_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1439 AfsdbLookupHandler(void)
1441 afs_int32 kernelMsg[64];
1442 char acellName[128];
1444 struct afsconf_cell acellInfo;
1449 acellName[0] = '\0';
1451 #ifdef AFS_DARWIN_ENV
1452 /* Fork the event handler also. */
1455 afsd_install_events();
1457 } else if (code != -1) {
1462 /* On some platforms you only get 4 args to an AFS call */
1463 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1465 afsd_call_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1466 if (code) { /* Something is wrong? */
1471 if (*acellName == 1) /* Shutting down */
1474 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1479 kernelMsg[0] = acellInfo.numServers;
1480 if (acellInfo.timeout)
1481 kernelMsg[1] = acellInfo.timeout - time(0);
1484 for (i = 0; i < acellInfo.numServers; i++)
1485 kernelMsg[i + 2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1486 strncpy(acellName, acellInfo.name, sizeof(acellName));
1487 acellName[sizeof(acellName) - 1] = '\0';
1490 #ifdef AFS_DARWIN_ENV
1491 kill(event_pid, SIGTERM);
1495 #ifdef AFS_DARWIN_ENV
1500 struct afs_uspc_param *uspc;
1504 uspc = (struct afs_uspc_param *)malloc(sizeof(struct afs_uspc_param));
1505 memset(uspc, 0, sizeof(struct afs_uspc_param));
1506 memset(srcName, 0, sizeof(srcName));
1507 memset(dstName, 0, sizeof(dstName));
1509 /* brscount starts at 0 */
1515 char srcpath[BUFSIZ];
1516 char dstpath[BUFSIZ];
1518 /* pushing in a buffer this large */
1521 code = afsd_call_syscall(AFSOP_BKG_HANDLER, uspc, srcName, dstName);
1522 if (code) { /* Something is wrong? */
1523 if (code == -2) /* shutting down */
1531 switch (uspc->reqtype) {
1533 snprintf(srcpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1534 uspc->req.umv.sCell, uspc->req.umv.sVolume,
1535 uspc->req.umv.sVnode, uspc->req.umv.sUnique, srcName);
1536 snprintf(dstpath, BUFSIZ, "/afs/.:mount/%d:%d:%d:%d/%s",
1537 uspc->req.umv.dCell, uspc->req.umv.dVolume,
1538 uspc->req.umv.dVnode, uspc->req.umv.dUnique, dstName);
1539 if ((child = fork()) == 0) {
1540 /* first child does cp; second, rm. mv would re-enter. */
1542 switch (uspc->req.umv.idtype) {
1544 if (setuid(uspc->req.umv.id) != 0) {
1550 break; /* notreached */
1552 execl("/bin/cp", "(afsd EXDEV helper)", "-PRp", "--", srcpath,
1553 dstpath, (char *) NULL);
1555 if (child == (pid_t) -1) {
1560 if (waitpid(child, &status, 0) == -1)
1562 else if (WIFEXITED(status) != 0 && WEXITSTATUS(status) == 0) {
1563 if ((child = fork()) == 0) {
1564 switch (uspc->req.umv.idtype) {
1566 if (setuid(uspc->req.umv.id) != 0) {
1572 break; /* notreached */
1574 execl("/bin/rm", "(afsd EXDEV helper)", "-rf", "--",
1575 srcpath, (char *) NULL);
1577 if (child == (pid_t) -1) {
1581 if (waitpid(child, &status, 0) == -1)
1583 else if (WIFEXITED(status) != 0) {
1584 /* rm exit status */
1585 uspc->retval = WEXITSTATUS(status);
1587 /* rm signal status */
1588 uspc->retval = -(WTERMSIG(status));
1591 /* error from cp: exit or signal status */
1592 uspc->retval = (WIFEXITED(status) != 0) ?
1593 WEXITSTATUS(status) : -(WTERMSIG(status));
1595 memset(srcName, 0, sizeof(srcName));
1596 memset(dstName, 0, sizeof(dstName));
1600 /* unknown req type */
1609 afsdb_thread(void *rock)
1611 /* Since the AFSDB lookup handler runs as a user process,
1612 * need to drop the controlling TTY, etc.
1614 if (afsd_daemon(0, 0) == -1) {
1615 printf("Error starting AFSDB lookup handler: %s\n",
1619 AfsdbLookupHandler();
1624 daemon_thread(void *rock)
1626 #ifdef AFS_DARWIN80_ENV
1627 /* Since the background daemon runs as a user process,
1628 * need to drop the controlling TTY, etc.
1630 if (afsd_daemon(0, 0) == -1) {
1631 printf("Error starting background daemon: %s\n",
1636 #elif defined(AFS_AIX32_ENV)
1637 afsd_call_syscall(AFSOP_START_BKG, 0);
1639 afsd_call_syscall(AFSOP_START_BKG);
1645 rmtsysd_thread(void *rock)
1652 mainproc(struct cmd_syndesc *as, void *arock)
1654 afs_int32 code; /*Result of fork() */
1655 #ifdef AFS_AIX32_ENV
1661 #ifdef AFS_SGI65_ENV
1662 struct sched_param sp;
1665 #ifdef AFS_SGI_VNODE_GLUE
1666 if (afs_init_kernel_config(-1) < 0) {
1667 printf("Can't determine NUMA configuration, not starting AFS.\n");
1672 /* call atoi on the appropriate parsed results */
1673 if (as->parms[0].items) {
1675 cacheBlocks = atoi(as->parms[0].items->data);
1678 if (as->parms[1].items) {
1680 cacheFiles = atoi(as->parms[1].items->data);
1681 filesSet = 1; /* set when spec'd on cmd line */
1683 if (as->parms[2].items) {
1685 strcpy(rootVolume, as->parms[2].items->data);
1688 if (as->parms[3].items) {
1690 cacheStatEntries = atoi(as->parms[3].items->data);
1691 sawCacheStatEntries = 1;
1693 if (as->parms[4].items) {
1695 cacheBaseDir[0] = '\0';
1696 sawCacheBaseDir = 1;
1697 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1699 if (as->parms[5].items) {
1701 strcpy(cacheBaseDir, as->parms[5].items->data);
1702 sawCacheBaseDir = 1;
1704 if (as->parms[6].items) {
1706 strcpy(afsd_cacheMountDir, as->parms[6].items->data);
1707 sawCacheMountDir = 1;
1709 if (as->parms[7].items) {
1711 nDaemons = atoi(as->parms[7].items->data);
1713 if (as->parms[8].items) {
1715 cacheSetTime = FALSE;
1717 if (as->parms[9].items) {
1721 if (as->parms[10].items) {
1725 if (as->parms[11].items) {
1730 if (as->parms[12].items) {
1732 chunkSize = atoi(as->parms[12].items->data);
1733 if (chunkSize < 0 || chunkSize > 30) {
1735 ("afsd:invalid chunk size (not in range 0-30), using default\n");
1739 if (as->parms[13].items) {
1741 dCacheSize = atoi(as->parms[13].items->data);
1744 if (as->parms[14].items) {
1746 vCacheSize = atoi(as->parms[14].items->data);
1748 if (as->parms[15].items) {
1750 #ifndef AFS_AIX32_ENV
1752 ("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1754 nBiods = atoi(as->parms[15].items->data);
1758 if (as->parms[16].items) {
1760 preallocs = atoi(as->parms[16].items->data);
1762 strcpy(confDir, AFSDIR_CLIENT_ETC_DIRPATH);
1763 if (as->parms[17].items) {
1765 strcpy(confDir, as->parms[17].items->data);
1767 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1768 if (as->parms[18].items) {
1770 printf("afsd: Ignoring obsolete -logfile flag\n");
1772 if (as->parms[19].items) {
1774 afsd_CloseSynch = 1;
1776 if (as->parms[20].items) {
1780 * Cold shutdown is the default
1782 printf("afsd: Shutting down all afs processes and afs state\n");
1783 code = afsd_call_syscall(AFSOP_SHUTDOWN, 1);
1785 printf("afsd: AFS still mounted; Not shutting down\n");
1790 if (as->parms[21].items) {
1791 /* -enable_peer_stats */
1792 enable_peer_stats = 1;
1794 if (as->parms[22].items) {
1795 /* -enable_process_stats */
1796 enable_process_stats = 1;
1798 if (as->parms[23].items) {
1799 /* -mem_alloc_sleep */
1800 printf("afsd: -mem_alloc_sleep is deprecated -- ignored\n");
1802 if (as->parms[24].items) {
1806 if (as->parms[25].items) {
1807 /* -files_per_subdir */
1808 int res = atoi(as->parms[25].items->data);
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 if (as->parms[26].items) {
1821 if (as->parms[27].items) {
1823 enable_fakestat = 2;
1825 if (as->parms[28].items) {
1827 enable_fakestat = 1;
1829 if (as->parms[29].items) {
1833 if (as->parms[30].items) {
1835 enable_backuptree = 1;
1837 if (as->parms[31].items) {
1841 if (as->parms[32].items) {
1843 cacheSetTime = TRUE;
1846 /* set rx_extraPackets */
1847 if (as->parms[33].items) {
1849 int rxpck = atoi(as->parms[33].items->data);
1850 printf("afsd: set rxpck = %d\n", rxpck);
1851 code = afsd_call_syscall(AFSOP_SET_RXPCK, rxpck);
1853 printf("afsd: failed to set rxpck\n");
1857 if (as->parms[34].items) {
1859 if (!as->parms[34].items->data ||
1860 ((c = strchr(as->parms[34].items->data, '/')) == NULL))
1862 ("ignoring splitcache (specify as RW/RO percentages: 60/40)\n");
1864 ropct = atoi((char *)c + 1);
1866 rwpct = atoi((char *)as->parms[30].items->data);
1867 if ((rwpct != 0) && (ropct != 0) && (ropct + rwpct == 100)) {
1869 enable_splitcache = 1;
1873 if (as->parms[35].items) {
1874 #ifdef AFS_MAXVCOUNT_ENV
1875 /* -disable-dynamic-vcaches */
1876 afsd_dynamic_vcaches = FALSE;
1878 printf("afsd: Error toggling flag, dynamically allocated vcaches not supported on your platform\n");
1882 #ifdef AFS_MAXVCOUNT_ENV
1884 /* -dynamic-vcaches */
1885 afsd_dynamic_vcaches = TRUE;
1889 printf("afsd: %s dynamically allocated vcaches\n", ( afsd_dynamic_vcaches ? "enabling" : "disabling" ));
1893 if (as->parms[36].items) {
1895 rxmaxmtu = atoi(as->parms[36].items->data);
1903 static char rn[] = "afsd"; /*Name of this routine */
1904 struct afsconf_dir *cdir; /* config dir */
1905 int lookupResult; /*Result of GetLocalCellName() */
1907 afs_int32 code; /*Result of fork() */
1908 char *fsTypeMsg = NULL;
1909 int cacheIteration; /*How many times through cache verification */
1910 int vFilesFound; /*How many data cache files were found in sweep */
1911 int currVFile; /*Current AFS cache file number passed in */
1914 * Pull out all the configuration info for the workstation's AFS cache and
1915 * the cellular community we're willing to let our users see.
1917 cdir = afsconf_Open(confDir);
1919 printf("afsd: some file missing or bad in %s\n", confDir);
1924 afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1926 printf("%s: Can't get my home cell name! [Error is %d]\n", rn,
1930 printf("%s: My home cell is '%s'\n", rn, LclCellName);
1933 /* parse cacheinfo file if this is a diskcache */
1934 if (ParseCacheInfoFile()) {
1938 /* do some random computations in memcache case to get things to work
1939 * reasonably no matter which parameters you set.
1941 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1942 /* memory cache: size described either as blocks or dcache entries, but
1946 fprintf(stderr, "%s: -files ignored with -memcache\n", rn);
1948 if (sawDCacheSize) {
1949 if (chunkSize == 0) {
1950 chunkSize = 13; /* 8k default chunksize for memcache */
1952 if (sawCacheBlocks) {
1954 ("%s: can't set cache blocks and dcache size simultaneously when diskless.\n",
1958 /* compute the cache size based on # of chunks times the chunk size */
1959 i = (1 << chunkSize); /* bytes per chunk */
1960 cacheBlocks = i * dCacheSize;
1961 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1963 if (chunkSize == 0) {
1964 /* Try to autotune the memcache chunksize based on size
1965 * of memcache. This is done on the assumption that approx
1966 * 1024 chunks is suitable, it's a balance between enough
1967 * chunks to be useful and ramping up nicely when using larger
1968 * memcache to improve bulk read/write performance
1971 i <= 21 && (1 << i) / 1024 < (cacheBlocks / 1024); i++);
1974 /* compute the dcache size from overall cache size and chunk size */
1975 if (chunkSize > 10) {
1976 dCacheSize = (cacheBlocks >> (chunkSize - 10));
1977 } else if (chunkSize < 10) {
1978 dCacheSize = (cacheBlocks << (10 - chunkSize));
1980 dCacheSize = cacheBlocks;
1982 /* don't have to set sawDCacheSize here since it isn't overwritten
1983 * by ParseCacheInfoFile.
1987 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
1989 /* kernel computes # of dcache entries as min of cacheFiles and
1990 * dCacheSize, so we now make them equal.
1992 cacheFiles = dCacheSize;
1995 * Compute the number of cache files based on cache size,
1996 * but only if -files isn't given on the command line.
1997 * Don't let # files be so small as to prevent full utilization
1998 * of the cache unless user has explicitly asked for it.
2000 if (chunkSize == 0) {
2001 /* Set chunksize to 256kB - 1MB depending on cache size */
2002 if (cacheBlocks < 500000) {
2004 } else if (cacheBlocks < 1000000) {
2011 cacheFiles = cacheBlocks / 32; /* Assume 32k avg filesize */
2013 cacheFiles = max(cacheFiles, 1000);
2015 /* Always allow more files than chunks. Presume average V-file
2016 * is ~67% of a chunk... (another guess, perhaps Honeyman will
2017 * have a grad student write a paper). i is KILOBYTES.
2019 i = 1 << (chunkSize < 10 ? 0 : chunkSize - 10);
2020 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
2022 /* never permit more files than blocks, while leaving space for
2023 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
2024 * CacheItems is 50 Bytes / file (== 1K/20)
2026 #define CACHEITMSZ (cacheFiles / 20)
2027 #define VOLINFOSZ 50 /* 40kB has been seen, be conservative */
2028 #define CELLINFOSZ 4 /* Assuming disk block size is 4k ... */
2029 #define INFOSZ (VOLINFOSZ+CELLINFOSZ+CACHEITMSZ)
2031 /* Sanity check: If the obtained number of disk cache files
2032 * is larger than the number of available (4k) disk blocks, we're
2033 * doing something wrong. Fail hard so we can fix the bug instead
2034 * of silently hiding it like before */
2036 if (cacheFiles > (cacheBlocks - INFOSZ) / 4) {
2038 "%s: ASSERT: cacheFiles %d diskblocks %d\n",
2039 rn, cacheFiles, (cacheBlocks - INFOSZ) / 4);
2042 if (cacheFiles < 100)
2043 fprintf(stderr, "%s: WARNING: cache probably too small!\n",
2047 printf("%s: cacheFiles autotuned to %d\n", rn, cacheFiles);
2050 /* This actually needs to
2052 2) not second-guess when a chunksize comes from the command line
2053 3) be less, um, small. 2^2??
2055 /* Sanity check chunkSize */
2056 i = max(cacheBlocks / 1000, cacheBlocks / cacheFiles);
2057 chunkSize = min(chunkSize, i);
2058 chunkSize = max(chunkSize, 2);
2060 printf("%s: chunkSize autotuned to %d\n", rn, chunkSize);
2063 if (!sawDCacheSize) {
2064 dCacheSize = cacheFiles / 2;
2065 if (dCacheSize > 10000) {
2068 if (dCacheSize < 2000) {
2072 printf("%s: dCacheSize autotuned to %d\n", rn, dCacheSize);
2075 if (!sawCacheStatEntries) {
2076 if (chunkSize <= 13) {
2077 cacheStatEntries = dCacheSize / 4;
2078 } else if (chunkSize >= 16) {
2079 cacheStatEntries = dCacheSize * 1.5;
2081 cacheStatEntries = dCacheSize;
2084 printf("%s: cacheStatEntries autotuned to %d\n", rn,
2088 #if !defined(AFS_CACHE_VNODE_PATH) && !defined(LINUX_USE_FH)
2090 * Create and zero the inode table for the desired cache files.
2092 inode_for_V = (AFSD_INO_T *) malloc(cacheFiles * sizeof(AFSD_INO_T));
2093 if (inode_for_V == (AFSD_INO_T *) 0) {
2095 ("%s: malloc() failed for cache file inode table with %d entries.\n",
2099 memset(inode_for_V, '\0', (cacheFiles * sizeof(AFSD_INO_T)));
2101 printf("%s: %d inode_for_V entries at 0x%x, %lu bytes\n", rn,
2102 cacheFiles, inode_for_V, (cacheFiles * sizeof(AFSD_INO_T)));
2106 * Set up all the pathnames we'll need for later.
2108 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
2109 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
2110 sprintf(fullpn_CellInfoFile, "%s/%s", cacheBaseDir, CELLINFOFILE);
2111 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
2112 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
2114 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)
2115 && (fsTypeMsg = CheckCacheBaseDir(cacheBaseDir))) {
2117 printf("%s: WARNING: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2119 printf("%s: ERROR: Cache dir check failed (%s)\n", rn, fsTypeMsg);
2125 * Set up all the kernel processes needed for AFS.
2128 setpgrp(getpid(), 0);
2131 /* Initialize RX daemons and services */
2133 /* initialize the rx random number generator from user space */
2135 /* parse multihomed address files */
2136 afs_uint32 addrbuf[MAXIPADDRS], maskbuf[MAXIPADDRS],
2140 parseNetFiles(addrbuf, maskbuf, mtubuf, MAXIPADDRS, reason,
2141 AFSDIR_CLIENT_NETINFO_FILEPATH,
2142 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
2145 code = code | 0x80000000;
2146 afsd_call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
2148 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",
2152 /* Set realtime priority for most threads to same as for biod's. */
2153 afsd_set_afsd_rtpri();
2155 #ifdef AFS_SGI53_ENV
2156 #ifdef AFS_SGI61_ENV
2158 #else /* AFS_SGI61_ENV */
2159 code = get_nfsstaticaddr();
2161 afsd_call_syscall(AFSOP_NFSSTATICADDR, code);
2162 #endif /* AFS_SGI61_ENV */
2163 #endif /* AFS_SGI_53_ENV */
2165 /* Start listener, then callback listener. Lastly, start rx event daemon.
2166 * Change in ordering is so that Linux port has socket fd in listener
2168 * preallocs are passed for both listener and callback server. Only
2169 * the one which actually does the initialization uses them though.
2171 if (preallocs < cacheStatEntries + 50)
2172 preallocs = cacheStatEntries + 50;
2173 #ifdef RXK_LISTENER_ENV
2175 printf("%s: Forking rx listener daemon.\n", rn);
2176 # ifdef AFS_SUN510_ENV
2177 fork_rx_syscall_wait(rn, AFSOP_RXLISTENER_DAEMON, preallocs,
2178 enable_peer_stats, enable_process_stats);
2179 # else /* !AFS_SUN510_ENV */
2180 fork_rx_syscall(rn, AFSOP_RXLISTENER_DAEMON, preallocs, enable_peer_stats,
2181 enable_process_stats);
2182 # endif /* !AFS_SUN510_ENV */
2185 printf("%s: Forking rx callback listener.\n", rn);
2186 fork_syscall(rn, AFSOP_START_RXCALLBACK, preallocs);
2187 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
2189 printf("%s: Forking rxevent daemon.\n", rn);
2190 fork_rx_syscall(rn, AFSOP_RXEVENT_DAEMON);
2195 printf("%s: Forking AFSDB lookup handler.\n", rn);
2196 afsd_fork(0, afsdb_thread, NULL);
2199 code = afsd_call_syscall(AFSOP_BASIC_INIT, 1);
2201 printf("%s: Error %d in basic initialization.\n", rn, code);
2206 * Tell the kernel some basic information about the workstation's cache.
2210 ("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
2211 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
2213 memset(&cparams, '\0', sizeof(cparams));
2214 cparams.cacheScaches = cacheStatEntries;
2215 cparams.cacheFiles = cacheFiles;
2216 cparams.cacheBlocks = cacheBlocks;
2217 cparams.cacheDcaches = dCacheSize;
2218 cparams.cacheVolumes = vCacheSize;
2219 cparams.chunkSize = chunkSize;
2220 cparams.setTimeFlag = cacheSetTime;
2221 cparams.memCacheFlag = cacheFlags;
2222 cparams.dynamic_vcaches = afsd_dynamic_vcaches;
2223 afsd_call_syscall(AFSOP_CACHEINIT, &cparams);
2225 /* do it before we init the cache inodes */
2226 if (enable_splitcache) {
2227 afsd_call_syscall(AFSOP_BUCKETPCT, 1, rwpct);
2228 afsd_call_syscall(AFSOP_BUCKETPCT, 2, ropct);
2231 if (afsd_CloseSynch)
2232 afsd_call_syscall(AFSOP_CLOSEWAIT);
2235 * Sweep the workstation AFS cache directory, remembering the inodes of
2236 * valid files and deleting extraneous files. Keep sweeping until we
2237 * have the right number of data cache files or we've swept too many
2240 * This also creates files in the cache directory like VolumeItems and
2241 * CellItems, and thus must be ran before those are sent to the kernel.
2244 printf("%s: Sweeping workstation's AFS cache directory.\n", rn);
2246 /* Memory-cache based system doesn't need any of this */
2247 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2250 if (SweepAFSCache(&vFilesFound)) {
2251 printf("%s: Error on sweep %d of workstation AFS cache \
2252 directory.\n", rn, cacheIteration);
2257 ("%s: %d out of %d data cache files found in sweep %d.\n",
2258 rn, vFilesFound, cacheFiles, cacheIteration);
2259 } while ((vFilesFound < cacheFiles)
2260 && (cacheIteration < MAX_CACHE_LOOPS));
2261 } else if (afsd_verbose)
2262 printf("%s: Using memory cache, not swept\n", rn);
2265 * Pass the kernel the name of the workstation cache file holding the
2269 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n", rn,
2271 /* once again, meaningless for a memory-based cache. */
2272 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2273 afsd_call_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
2276 * Pass the kernel the name of the workstation cache file holding the
2280 printf("%s: Calling AFSOP_CELLINFO: cell info file is '%s'\n", rn,
2281 fullpn_CellInfoFile);
2282 afsd_call_syscall(AFSOP_CELLINFO, fullpn_CellInfoFile);
2286 printf("%s: Setting rxmaxmtu in kernel = %d\n", rn, rxmaxmtu);
2287 code = afsd_call_syscall(AFSOP_SET_RXMAXMTU, rxmaxmtu);
2289 printf("%s: Error seting rxmaxmtu\n", rn);
2292 if (enable_dynroot) {
2294 printf("%s: Enabling dynroot support in kernel.\n", rn);
2295 code = afsd_call_syscall(AFSOP_SET_DYNROOT, 1);
2297 printf("%s: Error enabling dynroot support.\n", rn);
2300 if (enable_fakestat) {
2302 printf("%s: Enabling fakestat support in kernel.\n", rn);
2303 code = afsd_call_syscall(AFSOP_SET_FAKESTAT, enable_fakestat);
2305 printf("%s: Error enabling fakestat support.\n", rn);
2308 if (enable_backuptree) {
2310 printf("%s: Enabling backup tree support in kernel.\n", rn);
2311 code = afsd_call_syscall(AFSOP_SET_BACKUPTREE, enable_backuptree);
2313 printf("%s: Error enabling backup tree support.\n", rn);
2317 * Tell the kernel about each cell in the configuration.
2319 afsconf_CellApply(cdir, ConfigCell, NULL);
2320 afsconf_CellAliasApply(cdir, ConfigCellAlias, NULL);
2323 * Set the primary cell name.
2325 afsd_call_syscall(AFSOP_SET_THISCELL, LclCellName);
2327 /* Initialize AFS daemon threads. */
2329 printf("%s: Forking AFS daemon.\n", rn);
2330 fork_syscall(rn, AFSOP_START_AFS);
2333 printf("%s: Forking Check Server Daemon.\n", rn);
2334 fork_syscall(rn, AFSOP_START_CS);
2337 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
2338 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
2339 /* Add one because for sgi we always "steal" the first daemon for a
2340 * different task if we only have a 4K stack.
2344 for (i = 0; i < nDaemons; i++) {
2345 afsd_fork(0, daemon_thread, NULL);
2347 #ifdef AFS_AIX32_ENV
2349 nBiods = nDaemons * 2;
2352 for (i = 0; i < nBiods; i++) {
2353 fork_syscall(rn, AFSOP_START_BKG, nBiods);
2358 * If the root volume has been explicitly set, tell the kernel.
2362 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n", rn,
2364 afsd_call_syscall(AFSOP_ROOTVOLUME, rootVolume);
2368 * Pass the kernel the name of the workstation cache file holding the
2369 * volume information.
2372 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n", rn,
2373 fullpn_VolInfoFile);
2374 /* once again, meaningless for a memory-based cache. */
2375 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE))
2376 afsd_call_syscall(AFSOP_VOLUMEINFO, fullpn_VolInfoFile);
2379 * Give the kernel the names of the AFS files cached on the workstation's
2384 ("%s: Calling AFSOP_CACHEFILE for each of the %d files in '%s'\n",
2385 rn, cacheFiles, cacheBaseDir);
2386 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
2387 /* ... and again ... */
2388 int nocachefile = 0;
2389 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
2391 sprintf(fullpn_VFile, "%s/D%d/V%d", cacheBaseDir, dir_for_V[currVFile], currVFile);
2392 code = afsd_call_syscall(AFSOP_CACHEFILE, fullpn_VFile);
2394 if (currVFile == 0) {
2397 ("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
2398 rn, cacheFiles, cacheBaseDir);
2402 ("%s: Error calling AFSOP_CACHEFILE for '%s'\n",
2409 /* fall through to setup-by-inode */
2411 #ifdef AFS_SGI62_ENV
2412 afsd_call_syscall(AFSOP_CACHEINODE,
2413 (afs_uint32) (inode_for_V[currVFile] >> 32),
2414 (afs_uint32) (inode_for_V[currVFile] & 0xffffffff));
2415 #elif !(defined(LINUX_USE_FH) || defined(AFS_CACHE_VNODE_PATH))
2416 afsd_call_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
2419 ("%s: Error calling AFSOP_CACHEINODE: not configured\n",
2427 * All the necessary info has been passed into the kernel to run an AFS
2428 * system. Give the kernel our go-ahead.
2431 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n", rn,
2433 afsd_call_syscall(AFSOP_GO, cacheSetTime);
2436 * At this point, we have finished passing the kernel all the info
2437 * it needs to set up the AFS. Mount the AFS root.
2439 printf("%s: All AFS daemons started.\n", rn);
2442 printf("%s: Forking trunc-cache daemon.\n", rn);
2443 fork_syscall(rn, AFSOP_START_TRUNCDAEMON);
2445 if (!enable_nomount) {
2446 afsd_mount_afs(rn, afsd_cacheMountDir);
2451 printf("%s: Forking 'rmtsys' daemon.\n", rn);
2452 afsd_fork(0, rmtsysd_thread, NULL);
2455 * Exit successfully.
2460 #include "AFS_component_version_number.c"
2465 struct cmd_syndesc *ts;
2467 ts = cmd_CreateSyntax(NULL, mainproc, NULL, "start AFS");
2470 cmd_AddParm(ts, "-blocks", CMD_SINGLE, CMD_OPTIONAL,
2471 "1024 byte blocks in cache");
2472 cmd_AddParm(ts, "-files", CMD_SINGLE, CMD_OPTIONAL, "files in cache");
2473 cmd_AddParm(ts, "-rootvol", CMD_SINGLE, CMD_OPTIONAL,
2474 "name of AFS root volume");
2475 cmd_AddParm(ts, "-stat", CMD_SINGLE, CMD_OPTIONAL,
2476 "number of stat entries");
2477 cmd_AddParm(ts, "-memcache", CMD_FLAG, CMD_OPTIONAL, "run diskless");
2478 cmd_AddParm(ts, "-cachedir", CMD_SINGLE, CMD_OPTIONAL, "cache directory");
2479 cmd_AddParm(ts, "-mountdir", CMD_SINGLE, CMD_OPTIONAL, "mount location");
2480 cmd_AddParm(ts, "-daemons", CMD_SINGLE, CMD_OPTIONAL,
2481 "number of daemons to use");
2482 cmd_AddParm(ts, "-nosettime", CMD_FLAG, CMD_OPTIONAL,
2483 "don't set the time");
2484 cmd_AddParm(ts, "-verbose", CMD_FLAG, CMD_OPTIONAL,
2485 "display lots of information");
2486 cmd_AddParm(ts, "-rmtsys", CMD_FLAG, CMD_OPTIONAL,
2487 "start NFS rmtsysd program");
2490 cmd_AddParm(ts, "-debug", CMD_FLAG, CMD_OPTIONAL, "display debug info");
2491 cmd_AddParm(ts, "-chunksize", CMD_SINGLE, CMD_OPTIONAL,
2492 "log(2) of chunk size");
2493 cmd_AddParm(ts, "-dcache", CMD_SINGLE, CMD_OPTIONAL,
2494 "number of dcache entries");
2495 cmd_AddParm(ts, "-volumes", CMD_SINGLE, CMD_OPTIONAL,
2496 "number of volume entries");
2497 cmd_AddParm(ts, "-biods", CMD_SINGLE, CMD_OPTIONAL,
2498 "number of bkg I/O daemons (aix vm)");
2499 cmd_AddParm(ts, "-prealloc", CMD_SINGLE, CMD_OPTIONAL,
2500 "number of 'small' preallocated blocks");
2501 cmd_AddParm(ts, "-confdir", CMD_SINGLE, CMD_OPTIONAL,
2502 "configuration directory");
2503 cmd_AddParm(ts, "-logfile", CMD_SINGLE, CMD_OPTIONAL,
2504 "Place to keep the CM log");
2505 cmd_AddParm(ts, "-waitclose", CMD_FLAG, CMD_OPTIONAL,
2506 "make close calls synchronous");
2507 cmd_AddParm(ts, "-shutdown", CMD_FLAG, CMD_OPTIONAL,
2508 "Shutdown all afs state");
2510 cmd_AddParm(ts, "-enable_peer_stats", CMD_FLAG, CMD_OPTIONAL | CMD_HIDE,
2511 "Collect rpc statistics by peer");
2512 cmd_AddParm(ts, "-enable_process_stats", CMD_FLAG,
2513 CMD_OPTIONAL | CMD_HIDE,
2514 "Collect rpc statistics for this process");
2515 cmd_AddParm(ts, "-mem_alloc_sleep", CMD_FLAG, (CMD_OPTIONAL | CMD_HIDE),
2516 "Allow sleeps when allocating memory cache");
2517 cmd_AddParm(ts, "-afsdb", CMD_FLAG, (CMD_OPTIONAL),
2518 "Enable AFSDB support");
2519 cmd_AddParm(ts, "-files_per_subdir", CMD_SINGLE, CMD_OPTIONAL,
2520 "log(2) of the number of cache files per cache subdirectory");
2521 cmd_AddParm(ts, "-dynroot", CMD_FLAG, CMD_OPTIONAL,
2522 "Enable dynroot support");
2523 cmd_AddParm(ts, "-fakestat", CMD_FLAG, CMD_OPTIONAL,
2524 "Enable fakestat support for cross-cell mounts");
2525 cmd_AddParm(ts, "-fakestat-all", CMD_FLAG, CMD_OPTIONAL,
2526 "Enable fakestat support for all mounts");
2527 cmd_AddParm(ts, "-nomount", CMD_FLAG, CMD_OPTIONAL, "Do not mount AFS");
2528 cmd_AddParm(ts, "-backuptree", CMD_FLAG, CMD_OPTIONAL,
2529 "Prefer backup volumes for mointpoints in backup volumes");
2531 cmd_AddParm(ts, "-rxbind", CMD_FLAG, CMD_OPTIONAL,
2532 "Bind the Rx socket (one interface only)");
2533 cmd_AddParm(ts, "-settime", CMD_FLAG, CMD_OPTIONAL, "set the time");
2534 cmd_AddParm(ts, "-rxpck", CMD_SINGLE, CMD_OPTIONAL,
2535 "set rx_extraPackets to this value");
2536 cmd_AddParm(ts, "-splitcache", CMD_SINGLE, CMD_OPTIONAL,
2537 "Percentage RW versus RO in cache (specify as 60/40)");
2538 cmd_AddParm(ts, "-disable-dynamic-vcaches", CMD_FLAG, CMD_OPTIONAL,
2539 "disable stat/vcache cache growing as needed");
2540 cmd_AddParm(ts, "-rxmaxmtu", CMD_SINGLE, CMD_OPTIONAL, "set rx max MTU to use");
2544 afsd_parse(int argc, char **argv)
2546 return cmd_Dispatch(argc, argv);
2549 #ifdef AFS_SGI53_ENV
2550 #ifdef AFS_SGI61_ENV
2551 /* The dwarf structures are searched to find entry points of static functions
2552 * and the addresses of static variables. The file name as well as the
2553 * sybmol name is reaquired.
2556 /* Contains list of names to find in given file. */
2558 char *name; /* Name of variable or function. */
2559 afs_hyper_t addr; /* Address of function, undefined if not found. */
2560 Dwarf_Half type; /* DW_AT_location for vars, DW_AT_lowpc for func's */
2561 char found; /* set if found. */
2565 char *file; /* Name of file containing vars or funcs */
2566 staticAddrList *addrList; /* List of vars and/or funcs. */
2567 int nAddrs; /* # of addrList's */
2568 int found; /* set if we've found this file already. */
2571 /* routines used to find addresses in /unix */
2572 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2573 void findMDebugStaticAddresses(staticNameList *, int, int);
2575 void findDwarfStaticAddresses(staticNameList *, int);
2576 void findElfAddresses(Dwarf_Debug, Dwarf_Die, staticNameList *);
2577 void getElfAddress(Dwarf_Debug, Dwarf_Die, staticAddrList *);
2579 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2580 #define AFS_N_FILELISTS 2
2581 #define AFS_SYMS_NEEDED 3
2582 #else /* AFS_SGI62_ENV */
2583 #define AFS_N_FILELISTS 1
2584 #endif /* AFS_SGI62_ENV */
2589 set_staticaddrs(void)
2591 staticNameList fileList[AFS_N_FILELISTS];
2593 fileList[0].addrList =
2594 (staticAddrList *) calloc(1, sizeof(staticAddrList));
2595 if (!fileList[0].addrList) {
2596 printf("set_staticaddrs: Can't calloc fileList[0].addrList\n");
2599 fileList[0].file = "nfs_server.c";
2600 fileList[0].found = 0;
2601 fileList[0].nAddrs = 1;
2602 fileList[0].addrList[0].name = "rfsdisptab_v2";
2603 fileList[0].addrList[0].type = DW_AT_location;
2604 fileList[0].addrList[0].found = 0;
2606 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2607 fileList[1].addrList =
2608 (staticAddrList *) calloc(2, sizeof(staticAddrList));
2609 if (!fileList[1].addrList) {
2610 printf("set_staticaddrs: Can't malloc fileList[1].addrList\n");
2613 fileList[1].file = "uipc_socket.c";
2614 fileList[1].found = 0;
2615 fileList[1].nAddrs = 2;
2616 fileList[1].addrList[0].name = "sblock";
2617 fileList[1].addrList[0].type = DW_AT_low_pc;
2618 fileList[1].addrList[0].found = 0;
2619 fileList[1].addrList[1].name = "sbunlock";
2620 fileList[1].addrList[1].type = DW_AT_low_pc;
2621 fileList[1].addrList[1].found = 0;
2623 if (64 != sysconf(_SC_KERN_POINTERS))
2624 findMDebugStaticAddresses(fileList, AFS_N_FILELISTS, AFS_SYMS_NEEDED);
2626 #endif /* AFS_SGI62_ENV */
2627 findDwarfStaticAddresses(fileList, AFS_N_FILELISTS);
2629 if (fileList[0].addrList[0].found) {
2630 afsd_call_syscall(AFSOP_NFSSTATICADDR2, fileList[0].addrList[0].addr.high,
2631 fileList[0].addrList[0].addr.low);
2634 printf("NFS V2 is not present in the kernel.\n");
2636 free(fileList[0].addrList);
2637 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2638 if (fileList[1].addrList[0].found && fileList[1].addrList[1].found) {
2639 afsd_call_syscall(AFSOP_SBLOCKSTATICADDR2,
2640 fileList[1].addrList[0].addr.high,
2641 fileList[1].addrList[0].addr.low,
2642 fileList[1].addrList[1].addr.high,
2643 fileList[1].addrList[1].addr.low);
2645 if (!fileList[1].addrList[0].found)
2646 printf("Can't find %s in kernel. Exiting.\n",
2647 fileList[1].addrList[0].name);
2648 if (!fileList[1].addrList[0].found)
2649 printf("Can't find %s in kernel. Exiting.\n",
2650 fileList[1].addrList[1].name);
2653 free(fileList[1].addrList);
2654 #endif /* AFS_SGI62_ENV */
2658 /* Find addresses for static variables and functions. */
2660 findDwarfStaticAddresses(staticNameList * nameList, int nLists)
2667 char *hname = (char *)0;
2668 Dwarf_Unsigned dwarf_access = O_RDONLY;
2669 Dwarf_Debug dwarf_debug;
2670 Dwarf_Error dwarf_error;
2671 Dwarf_Unsigned dwarf_cu_header_length;
2672 Dwarf_Unsigned dwarf_abbrev_offset;
2673 Dwarf_Half dwarf_address_size;
2674 Dwarf_Unsigned next_cu_header;
2675 Dwarf_Die dwarf_die;
2676 Dwarf_Die dwarf_next_die;
2677 Dwarf_Die dwarf_child_die;
2679 if (elf_version(EV_CURRENT) == EV_NONE) {
2680 printf("findDwarfStaticAddresses: Bad elf version.\n");
2684 if ((fd = open("/unix", O_RDONLY, 0)) < 0) {
2685 printf("findDwarfStaticAddresses: Failed to open /unix.\n");
2689 dwarf_init(fd, dwarf_access, NULL, NULL, &dwarf_debug, &dwarf_error);
2690 if (code != DW_DLV_OK) {
2691 /* Nope hope for the elves and dwarves, try intermediate code. */
2698 /* Run through the headers until we find ones for files we've
2699 * specified in nameList.
2702 dwarf_next_cu_header(dwarf_debug, &dwarf_cu_header_length, NULL,
2703 &dwarf_abbrev_offset, &dwarf_address_size,
2704 &next_cu_header, &dwarf_error);
2705 if (code == DW_DLV_NO_ENTRY) {
2707 } else if (code == DW_DLV_ERROR) {
2708 printf("findDwarfStaticAddresses: Error reading headers: %s\n",
2709 dwarf_errmsg(dwarf_error));
2713 code = dwarf_siblingof(dwarf_debug, NULL, &dwarf_die, &dwarf_error);
2714 if (code != DW_DLV_OK) {
2715 printf("findDwarfStaticAddresses: Can't get first die. %s\n",
2716 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2720 /* This is the header, test the name. */
2721 code = dwarf_diename(dwarf_die, &hname, &dwarf_error);
2722 if (code == DW_DLV_OK) {
2723 s = strrchr(hname, '/');
2724 for (i = 0; i < nLists; i++) {
2725 if (s && !strcmp(s + 1, nameList[i].file)) {
2726 findElfAddresses(dwarf_debug, dwarf_die, &nameList[i]);
2733 ("findDwarfStaticAddresses: Can't get name of current header. %s\n",
2734 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2737 dwarf_dealloc(dwarf_debug, hname, DW_DLA_STRING);
2739 if (found >= nLists) { /* we're done */
2744 /* Frees up all allocated space. */
2745 (void)dwarf_finish(dwarf_debug, &dwarf_error);
2750 findElfAddresses(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_die,
2751 staticNameList * nameList)
2754 Dwarf_Error dwarf_error;
2755 Dwarf_Die dwarf_next_die;
2756 Dwarf_Die dwarf_child_die;
2757 Dwarf_Attribute dwarf_return_attr;
2758 char *vname = (char *)0;
2762 /* Drop into this die to find names in addrList. */
2763 code = dwarf_child(dwarf_die, &dwarf_child_die, &dwarf_error);
2764 if (code != DW_DLV_OK) {
2765 printf("findElfAddresses: Can't get child die. %s\n",
2766 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2770 /* Try to find names in each sibling. */
2771 dwarf_next_die = (Dwarf_Die) 0;
2773 code = dwarf_diename(dwarf_child_die, &vname, &dwarf_error);
2774 /* It's possible that some siblings don't have names. */
2775 if (code == DW_DLV_OK) {
2776 for (i = 0; i < nameList->nAddrs; i++) {
2777 if (!nameList->addrList[i].found) {
2778 if (!strcmp(vname, nameList->addrList[i].name)) {
2779 getElfAddress(dwarf_debug, dwarf_child_die,
2780 &(nameList->addrList[i]));
2788 dwarf_dealloc(dwarf_debug, dwarf_next_die, DW_DLA_DIE);
2790 if (found >= nameList->nAddrs) { /* we're done. */
2794 dwarf_next_die = dwarf_child_die;
2796 dwarf_siblingof(dwarf_debug, dwarf_next_die, &dwarf_child_die,
2799 } while (code == DW_DLV_OK);
2802 /* Get address out of current die. */
2804 getElfAddress(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_child_die,
2805 staticAddrList * addrList)
2808 Dwarf_Error dwarf_error;
2809 Dwarf_Attribute dwarf_return_attr;
2810 Dwarf_Bool dwarf_return_bool;
2811 Dwarf_Locdesc *llbuf = NULL;
2812 Dwarf_Signed listlen;
2813 off64_t addr = (off64_t) 0;
2817 dwarf_hasattr(dwarf_child_die, addrList->type, &dwarf_return_bool,
2819 if ((code != DW_DLV_OK) || (!dwarf_return_bool)) {
2820 printf("getElfAddress: no address given for %s. %s\n", addrList->name,
2821 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2825 dwarf_attr(dwarf_child_die, addrList->type, &dwarf_return_attr,
2827 if (code != DW_DLV_OK) {
2828 printf("getElfAddress: Can't get attribute. %s\n",
2829 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2833 switch (addrList->type) {
2834 case DW_AT_location:
2836 dwarf_loclist(dwarf_return_attr, &llbuf, &listlen, &dwarf_error);
2837 if (code != DW_DLV_OK) {
2838 printf("getElfAddress: Can't get location for %s. %s\n",
2840 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2843 if ((listlen != 1) || (llbuf[0].ld_cents != 1)) {
2844 printf("getElfAddress: %s has more than one address.\n",
2848 addr = llbuf[0].ld_s[0].lr_number;
2853 dwarf_lowpc(dwarf_child_die, (Dwarf_Addr *) & addr, &dwarf_error);
2854 if (code != DW_DLV_OK) {
2855 printf("getElfAddress: Can't get lowpc for %s. %s\n",
2857 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2863 printf("getElfAddress: Bad case %d in switch.\n", addrList->type);
2867 addrList->addr.high = (addr >> 32) & 0xffffffff;
2868 addrList->addr.low = addr & 0xffffffff;
2869 addrList->found = 1;
2872 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2873 /* Find symbols in the .mdebug section for 32 bit kernels. */
2876 * On 32bit platforms, we're still using the ucode compilers to build
2877 * the kernel, so we need to get our static text/data from the .mdebug
2878 * section instead of the .dwarf sections.
2880 /* SearchNameList searches our bizarre structs for the given string.
2881 * If found, sets the found bit and the address and returns 1.
2882 * Not found returns 0.
2885 SearchNameList(char *name, afs_uint32 addr, staticNameList * nameList,
2889 for (i = 0; i < nLists; i++) {
2890 for (j = 0; j < nameList[i].nAddrs; j++) {
2891 if (nameList[i].addrList[j].found)
2893 if (!strcmp(name, nameList[i].addrList[j].name)) {
2894 nameList[i].addrList[j].addr.high = 0;
2895 nameList[i].addrList[j].addr.low = addr;
2896 nameList[i].addrList[j].found = 1;
2905 SearchMDebug(Elf_Scn * scnp, Elf32_Shdr * shdrp, staticNameList * nameList,
2906 int nLists, int needed)
2908 long *buf = (long *)(elf_getdata(scnp, NULL)->d_buf);
2909 u_long addr, mdoff = shdrp->sh_offset;
2911 SYMR *symbase, *symp, *symend;
2912 FDR *fdrbase, *fdrp;
2914 char *strbase, *str;
2919 addr = (__psunsigned_t) buf;
2920 hdrp = (HDRR *) addr;
2922 /* setup base addresses */
2923 addr = (u_long) buf + (u_long) (hdrp->cbFdOffset - mdoff);
2924 fdrbase = (FDR *) addr;
2925 addr = (u_long) buf + (u_long) (hdrp->cbSymOffset - mdoff);
2926 symbase = (SYMR *) addr;
2927 addr = (u_long) buf + (u_long) (hdrp->cbSsOffset - mdoff);
2928 strbase = (char *)addr;
2930 #define KEEPER(a,b) ((a == stStaticProc && b == scText) || \
2931 (a == stStatic && (b == scData || b == scBss || \
2932 b == scSBss || b == scSData)))
2934 for (fdrp = fdrbase; fdrp < &fdrbase[hdrp->ifdMax]; fdrp++) {
2935 str = strbase + fdrp->issBase + fdrp->rss;
2937 /* local symbols for each fd */
2938 for (symp = &symbase[fdrp->isymBase];
2939 symp < &symbase[fdrp->isymBase + fdrp->csym]; symp++) {
2940 if (KEEPER(symp->st, symp->sc)) {
2941 if (symp->value == 0)
2944 str = strbase + fdrp->issBase + symp->iss;
2945 /* Look for AFS symbols of interest */
2946 if (SearchNameList(str, symp->value, nameList, nLists)) {
2948 if (nFound >= needed)
2957 * returns section with the name of scn_name, & puts its header in shdr64 or
2958 * shdr32 based on elf's file type
2962 findMDebugSection(Elf * elf, char *scn_name)
2966 Elf_Scn *scn = NULL;
2970 if ((ehdr32 = elf32_getehdr(elf)) == NULL)
2973 if ((scn = elf_nextscn(elf, scn)) == NULL)
2975 if ((shdr32 = elf32_getshdr(scn)) == NULL)
2979 elf_strptr(elf, ehdr32->e_shstrndx, shdr32->sh_name)));
2986 findMDebugStaticAddresses(staticNameList * nameList, int nLists, int needed)
2990 Elf_Scn *mdebug_scn;
2991 Elf32_Shdr *mdebug_shdr;
2994 if ((fd = open("/unix", O_RDONLY)) == -1) {
2995 printf("findMDebugStaticAddresses: Failed to open /unix.\n");
2999 (void)elf_version(EV_CURRENT);
3000 if ((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
3002 ("findMDebugStaticAddresses: /unix doesn't seem to be an elf file\n");
3006 mdebug_scn = findMDebugSection(elf, ".mdebug");
3008 printf("findMDebugStaticAddresses: Can't find .mdebug section.\n");
3011 mdebug_shdr = elf32_getshdr(mdebug_scn);
3013 printf("findMDebugStaticAddresses: Can't find .mdebug header.\n");
3017 (void)SearchMDebug(mdebug_scn, mdebug_shdr, nameList, nLists, needed);
3023 #endif /* AFS_SGI62_ENV */
3025 #else /* AFS_SGI61_ENV */
3027 struct nlist nlunix[] = {
3034 int i, j, kmem, count;
3036 if ((kmem = open("/dev/kmem", O_RDONLY)) < 0) {
3037 printf("Warning: can't open /dev/kmem\n");
3040 if ((j = nlist("/unix", nlunix)) < 0) {
3041 printf("Warning: can't nlist /unix\n");
3044 i = nlunix[0].n_value;
3045 if (lseek(kmem, i, L_SET /*0 */ ) != i) {
3046 printf("Warning: can't lseek to %x\n", i);
3049 if ((j = read(kmem, &count, sizeof count)) != sizeof count) {
3050 printf("WARNING: kmem read at %x failed\n", i);
3055 #endif /* AFS_SGI61_ENV */
3056 #endif /* AFS_SGI53_ENV */
3058 struct afsd_syscall_args {
3070 * entry point for calling a syscall from another proc/thread.
3072 * @param[in] rock a struct afsd_syscall_args* specifying what syscall to call
3075 * @retval NULL always
3078 call_syscall_thread(void *rock)
3080 struct afsd_syscall_args *args = rock;
3084 afsd_set_rx_rtpri();
3087 code = afsd_call_syscall(args->syscall, args->param1, args->param2,
3088 args->param3, args->param4, args->param5);
3089 if (code && args->syscall == AFSOP_START_CS) {
3090 printf("%s: No check server daemon in client.\n", args->rn);
3099 * common code for calling a syscall in another proc/thread.
3101 * @param[in] rx 1 if this is a thread for RX stuff, 0 otherwise
3102 * @param[in] wait 1 if we should wait for the new proc/thread to finish, 0 to
3103 * let it run in the background
3104 * @param[in] rn the name of the running program
3105 * @param[in] syscall syscall to run
3108 fork_syscall_impl(int rx, int wait, const char *rn, long syscall, long param1,
3109 long param2, long param3, long param4, long param5)
3111 struct afsd_syscall_args *args;
3113 args = malloc(sizeof(*args));
3115 args->syscall = syscall;
3116 args->param1 = param1;
3117 args->param2 = param2;
3118 args->param3 = param3;
3119 args->param4 = param4;
3120 args->param5 = param5;
3124 afsd_fork(wait, call_syscall_thread, args);
3128 * call a syscall in another process or thread.
3131 fork_syscall(const char *rn, long syscall, long param1, long param2,
3132 long param3, long param4, long param5)
3134 fork_syscall_impl(0, 0, rn, syscall, param1, param2, param3, param4, param5);
3137 #if defined(AFS_SUN510_ENV) || defined(RXK_LISTENER_ENV)
3139 * call a syscall in another process or thread, and give it RX priority.
3142 fork_rx_syscall(const char *rn, long syscall, long param1, long param2,
3143 long param3, long param4, long param5)
3145 fork_syscall_impl(1, 0, rn, syscall, param1, param2, param3, param4, param5);
3147 #endif /* AFS_SUN510_ENV || RXK_LISTENER_ENV */
3149 #if defined(AFS_SUN510_ENV) && defined(RXK_LISTENER_ENV)
3151 * call a syscall in another process or thread, give it RX priority, and wait
3152 * for it to finish before returning.
3155 fork_rx_syscall_wait(const char *rn, long syscall, long param1, long param2,
3156 long param3, long param4, long param5)
3158 fork_syscall_impl(1, 1, rn, syscall, param1, param2, param3, param4, param5);
3160 #endif /* AFS_SUN510_ENV && RXK_LISTENER_ENV */