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.
34 * -debug Print out additional debugging info.
35 * -kerndev [OBSOLETE] The kernel device for AFS.
36 * -dontfork [OBSOLETE] Don't fork off as a new process.
37 * -daemons The number of background daemons to start (Default: 2).
38 * -rmtsys Also fires up an afs remote sys call (e.g. pioctl, setpag)
40 * -chunksize [n] 2^n is the chunksize to be used. 0 is default.
41 * -dcache The number of data cache entries.
42 * -biods Number of bkg I/O daemons (AIX3.1 only)
43 * -prealloc Number of preallocated "small" memory blocks
44 * -pininodes Number of inodes which can be spared from inode[] for
45 * pointing at Vfiles. If this is set too high, you may have
46 * system problems, which can only be ameliorated by changing
47 * NINODE (or equivalent) and rebuilding the kernel.
48 * This option is now disabled.
49 * -logfile Place where to put the logfile (default in <cache>/etc/AFSLog.
50 * -waitclose make close calls always synchronous (slows em down, tho)
51 * -files_per_subdir [n] number of files per cache subdir. (def=2048)
52 * -shutdown Shutdown afs daemons
53 *---------------------------------------------------------------------------*/
55 #include <afsconfig.h>
56 #include <afs/param.h>
65 #include <potpourri.h>
66 #include <afs/afsutil.h>
73 #include <sys/types.h>
80 #ifdef HAVE_SYS_PARAM_H
81 #include <sys/param.h>
84 #ifdef HAVE_SYS_FS_TYPES_H
85 #include <sys/fs_types.h>
88 #ifdef HAVE_SYS_MOUNT_H
89 #include <sys/mount.h>
92 #ifdef HAVE_SYS_FCNTL_H
93 #include <sys/fcntl.h>
96 #ifdef HAVE_SYS_MNTTAB_H
97 #include <sys/mnttab.h>
100 #ifdef HAVE_SYS_MNTENT_H
101 #include <sys/mntent.h>
108 #ifdef HAVE_SYS_MOUNT_H
109 #include <sys/mount.h>
112 #ifdef HAVE_SYS_VFS_H
124 #include <netinet/in.h>
125 #include <afs/afs_args.h>
126 #include <afs/cellconfig.h>
127 #include <afs/auth.h>
129 #include <afs/afssyscalls.h>
130 #include <afs/afsutil.h>
136 #include <libdwarf.h>
137 void set_staticaddrs(void);
138 #endif /* AFS_SGI61_ENV */
139 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
141 #include <symconst.h>
146 #ifdef AFS_LINUX20_ENV
147 #include <sys/resource.h>
151 #define MOUNT_AFS AFS_MOUNT_AFS
152 #endif /* MOUNT_AFS */
155 #include <sys/statvfs.h>
157 #if !defined(AFS_OSF_ENV) && !defined(AFS_DARWIN_ENV) && !defined(AFS_XBSD_ENV)
158 #include <sys/statfs.h>
165 #define CACHEINFOFILE "cacheinfo"
166 #define AFSLOGFILE "AFSLog"
167 #define DCACHEFILE "CacheItems"
168 #define VOLINFOFILE "VolumeItems"
170 #define MAXIPADDRS 1024
172 char LclCellName[64];
174 #define MAX_CACHE_LOOPS 4
177 * Internet address (old style... should be updated). This was pulled out of the old 4.2
178 * version of <netinet/in.h>, since it's still useful.
182 struct { u_char s_b1,s_b2,s_b3,s_b4; } S_un_b;
183 struct { u_short s_w1,s_w2; } S_un_w;
186 #define s_host S_un.S_un_b.s_b2 /* host on imp */
187 #define s_net S_un.S_un_b.s_b1 /* network */
188 #define s_imp S_un.S_un_w.s_w2 /* imp */
189 #define s_impno S_un.S_un_b.s_b4 /* imp # */
190 #define s_lh S_un.S_un_b.s_b3 /* logical host */
193 #define mPrintIPAddr(ipaddr) printf("[%d.%d.%d.%d] ", \
194 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b1, \
195 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b2, \
196 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b3, \
197 ((struct in_addr_42 *) &(ipaddr))->S_un.S_un_b.s_b4)
200 * Global configuration variables.
202 afs_int32 afs_shutdown = 0;
203 afs_int32 cacheBlocks; /*Num blocks in the cache*/
204 afs_int32 cacheFiles = 1000; /*Optimal # of files in workstation cache*/
205 afs_int32 cacheStatEntries = 300; /*Number of stat cache entries*/
206 char cacheBaseDir[1024]; /*Where the workstation AFS cache lives*/
207 char confDir[1024]; /*Where the workstation AFS configuration lives*/
208 char fullpn_DCacheFile[1024]; /*Full pathname of DCACHEFILE*/
209 char fullpn_VolInfoFile[1024]; /*Full pathname of VOLINFOFILE*/
210 char fullpn_AFSLogFile[1024]; /*Full pathname of AFSLOGFILE*/
211 char fullpn_CacheInfo[1024]; /*Full pathname of CACHEINFO*/
212 char fullpn_VFile[1024]; /*Full pathname of data cache files*/
213 char *vFilePtr; /*Ptr to the number part of above pathname*/
214 int sawCacheMountDir = 0; /* from cmd line */
215 int sawCacheBaseDir = 0;
216 int sawCacheBlocks = 0;
217 int sawDCacheSize = 0;
219 char cacheMountDir[1024]; /*Mount directory for AFS*/
220 char rootVolume[64] = "root.afs"; /*AFS root volume name*/
221 afs_int32 cacheSetTime = 1; /*Keep checking time to avoid drift?*/
222 afs_int32 isHomeCell; /*Is current cell info for the home cell?*/
223 afs_int32 lookingForHomeCell; /*Are we still looking for the home cell?*/
224 int createAndTrunc = O_CREAT | O_TRUNC; /*Create & truncate on open*/
225 int ownerRWmode = 0600; /*Read/write OK by owner*/
226 static int filesSet = 0; /*True if number of files explicitly set*/
227 static int nFilesPerDir = 2048; /* # files per cache dir */
228 static int nDaemons = 2; /* Number of background daemons */
229 static int chunkSize = 0; /* 2^chunkSize bytes per chunk */
230 static int dCacheSize = 300; /* # of dcache entries */
231 static int vCacheSize = 50; /* # of volume cache entries */
232 static int rootVolSet = 0; /*True if root volume name explicitly set*/
233 int addrNum; /*Cell server address index being printed*/
234 static int cacheFlags = 0; /*Flags to cache manager*/
235 static int nBiods = 5; /* AIX3.1 only */
236 static int preallocs = 400; /* Def # of allocated memory blocks */
237 static int enable_peer_stats = 0; /* enable rx stats */
238 static int enable_process_stats = 0; /* enable rx stats */
240 static int enable_afsdb = 0; /* enable AFSDB support */
242 static int enable_dynroot = 0; /* enable dynroot support */
243 static int enable_fakestat = 0; /* enable fakestat support */
245 static int inodes = 60; /* VERY conservative, but has to be */
247 int afsd_verbose = 0; /*Are we being chatty?*/
248 int afsd_debug = 0; /*Are we printing debugging info?*/
249 int afsd_CloseSynch = 0; /*Are closes synchronous or not? */
252 #define AFSD_INO_T ino64_t
254 #define AFSD_INO_T afs_uint32
256 struct afsd_file_list {
258 struct afsd_file_list *next;
260 struct afsd_file_list **cache_dir_filelist = NULL;
261 int *cache_dir_list = NULL; /* Array of cache subdirs */
262 int *dir_for_V = NULL; /* Array: dir of each cache file.
263 * -1: file does not exist
264 * -2: file exists in top-level
265 * >=0: file exists in Dxxx
267 AFSD_INO_T *inode_for_V; /* Array of inodes for desired
269 int missing_DCacheFile = 1; /*Is the DCACHEFILE missing?*/
270 int missing_VolInfoFile = 1; /*Is the VOLINFOFILE missing?*/
271 int afsd_rmtsys = 0; /* Default: don't support rmtsys */
272 struct afs_cacheParams cparams; /* params passed to cache manager */
274 static int HandleMTab();
276 /* ParseArgs is now obsolete, being handled by cmd */
278 /*------------------------------------------------------------------------------
282 * Open the file containing the description of the workstation's AFS cache
283 * and pull out its contents. The format of this file is as follows:
285 * cacheMountDir:cacheBaseDir:cacheBlocks
291 * 0 if everything went well,
295 * Nothing interesting.
299 *---------------------------------------------------------------------------*/
301 int ParseCacheInfoFile()
303 static char rn[]="ParseCacheInfoFile"; /*This routine's name*/
304 FILE *cachefd; /*Descriptor for cache info file*/
305 int parseResult; /*Result of our fscanf()*/
306 afs_int32 tCacheBlocks;
307 char tCacheBaseDir[1024], *tbd, tCacheMountDir[1024], *tmd;
310 printf("%s: Opening cache info file '%s'...\n",
311 rn, fullpn_CacheInfo);
313 cachefd = fopen(fullpn_CacheInfo, "r");
315 printf("%s: Can't read cache info file '%s'\n",
316 rn, fullpn_CacheInfo);
321 * Parse the contents of the cache info file. All chars up to the first
322 * colon are the AFS mount directory, all chars to the next colon are the
323 * full path name of the workstation cache directory and all remaining chars
324 * represent the number of blocks in the cache.
326 tCacheMountDir[0] = tCacheBaseDir[0] = '\0';
327 parseResult = fscanf(cachefd,
328 "%1024[^:]:%1024[^:]:%d",
329 tCacheMountDir, tCacheBaseDir, &tCacheBlocks);
332 * Regardless of how the parse went, we close the cache info file.
336 if (parseResult == EOF || parseResult < 3) {
337 printf("%s: Format error in cache info file!\n",
339 if (parseResult == EOF)
340 printf("\tEOF encountered before any field parsed.\n");
342 printf("\t%d out of 3 fields successfully parsed.\n",
345 printf("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
346 cacheMountDir, cacheBaseDir, cacheBlocks);
350 for (tmd = tCacheMountDir; *tmd == '\n' || *tmd == ' ' || *tmd == '\t'; tmd++) ;
351 for (tbd = tCacheBaseDir; *tbd == '\n' || *tbd == ' ' || *tbd == '\t'; tbd++) ;
352 /* now copy in the fields not explicitly overridden by cmd args */
353 if (!sawCacheMountDir)
354 strcpy(cacheMountDir, tmd);
355 if (!sawCacheBaseDir)
356 strcpy(cacheBaseDir, tbd);
358 cacheBlocks = tCacheBlocks;
361 printf("%s: Cache info file successfully parsed:\n",
363 printf("\tcacheMountDir: '%s'\n\tcacheBaseDir: '%s'\n\tcacheBlocks: %d\n",
364 tmd, tbd, tCacheBlocks);
366 if (! (cacheFlags & AFSCALL_INIT_MEMCACHE))
367 PartSizeOverflow(tbd, cacheBlocks);
373 * All failures to open the partition are ignored. Also if the cache dir
374 * isn't a mounted partition it's also ignored since we can't guarantee
375 * what will be stored afterwards. Too many if's. This is now purely
376 * advisory. ODS with over 2G partition also gives warning message.
378 PartSizeOverflow(path, cs)
382 int bsize=-1, totalblks, mint;
384 struct statvfs statbuf;
386 if (statvfs(path, &statbuf) != 0) {
387 if (afsd_debug) printf("statvfs failed on %s; skip checking for adequate partition space\n", path);
390 totalblks = statbuf.f_blocks;
391 bsize = statbuf.f_frsize;
393 struct statfs statbuf;
395 if (statfs(path, &statbuf) < 0) {
396 if (afsd_debug) printf("statfs failed on %s; skip checking for adequate partition space\n", path);
399 totalblks = statbuf.f_blocks;
400 bsize = statbuf.f_bsize;
402 if (bsize == -1) return 0; /* sucess */
404 /* now free and totalblks are in fragment units, but we want them in 1K units */
406 totalblks *= (bsize / 1024);
408 totalblks /= (1024/bsize);
411 mint = totalblks - ((totalblks * 5) / 100);
413 printf("Cache size (%d) must be less than 95%% of partition size (which is %d). Lower cache size\n",
418 /*-----------------------------------------------------------------------------
422 * Given the final component of a filename expected to be a data cache file,
423 * return the integer corresponding to the file. Note: we reject names that
424 * are not a ``V'' followed by an integer. We also reject those names having
425 * the right format but lying outside the range [0..cacheFiles-1].
428 * fname : Char ptr to the filename to parse.
429 * max : integer for the highest number to accept
432 * >= 0 iff the file is really a data cache file numbered from 0 to cacheFiles-1, or
436 * Nothing interesting.
440 *---------------------------------------------------------------------------*/
442 static int doGetXFileNumber(fname, filechar, maxNum)
447 int computedVNumber; /*The computed file number we return*/
448 int filenameLen; /*Number of chars in filename*/
449 int currDigit; /*Current digit being processed*/
452 * The filename must have at least two characters, the first of which must be a ``filechar''
453 * and the second of which cannot be a zero unless the file is exactly two chars long.
455 filenameLen = strlen(fname);
458 if (fname[0] != filechar)
460 if ((filenameLen > 2) && (fname[1] == '0'))
464 * Scan through the characters in the given filename, failing immediately if a non-digit
467 for (currDigit = 1; currDigit < filenameLen; currDigit++)
468 if (isdigit(fname[currDigit]) == 0)
472 * All relevant characters are digits. Pull out the decimal number they represent.
473 * Reject it if it's out of range, otherwise return it.
475 computedVNumber = atoi(++fname);
476 if (computedVNumber < cacheFiles)
477 return(computedVNumber);
482 int GetVFileNumber(fname, maxFile)
486 return doGetXFileNumber(fname, 'V', maxFile);
489 int GetDDirNumber(fname, maxDir)
493 return doGetXFileNumber(fname, 'D', maxDir);
497 /*-----------------------------------------------------------------------------
501 * Given a full pathname for a file we need to create for the workstation AFS
502 * cache, go ahead and create the file.
505 * fname : Full pathname of file to create.
506 * statp : A pointer to a stat buffer which, if NON-NULL, will be
510 * 0 iff the file was created,
514 * The given cache file has been found to be missing.
518 *---------------------------------------------------------------------------*/
520 static int CreateCacheSubDir (basename, dirNum)
524 static char rn[] = "CreateCacheSubDir"; /* Routine Name */
528 /* Build the new cache subdirectory */
529 sprintf (dir, "%s/D%d", basename, dirNum);
532 printf("%s: Creating cache subdir '%s'\n",
535 if ((ret = mkdir(dir, 0700)) != 0) {
536 printf("%s: Can't create '%s', error return is %d (%d)\n",
537 rn, dir, ret, errno);
542 /* Mark this directory as created */
543 cache_dir_list[dirNum] = 0;
545 /* And return success */
549 static int MoveCacheFile (basename, fromDir, toDir, cacheFile, maxDir)
551 int fromDir, toDir, cacheFile, maxDir;
553 static char rn[] = "MoveCacheFile";
554 char from[1024], to[1024];
557 if (cache_dir_list[toDir] < 0 &&
558 (ret = CreateCacheSubDir(basename, toDir))) {
559 printf("%s: Can't create directory '%s/D%d'\n", rn, basename, toDir);
563 /* Build the from,to dir */
565 /* old-style location */
566 snprintf (from, sizeof(from), "%s/V%d", basename, cacheFile);
568 snprintf (from, sizeof(from), "%s/D%d/V%d", basename, fromDir, cacheFile);
571 snprintf (to, sizeof(from), "%s/D%d/V%d", basename, toDir, cacheFile);
574 printf("%s: Moving cacheFile from '%s' to '%s'\n",
577 if ((ret = rename (from, to)) != 0) {
578 printf("%s: Can't rename '%s' to '%s', error return is %d (%d)\n",
579 rn, from, to, ret, errno);
583 /* Reset directory pointer; fix file counts */
584 dir_for_V[cacheFile] = toDir;
585 cache_dir_list[toDir]++;
586 if (fromDir < maxDir && fromDir >= 0)
587 cache_dir_list[fromDir]--;
592 int CreateCacheFile(fname, statp)
596 static char rn[] = "CreateCacheFile"; /*Routine name*/
597 int cfd; /*File descriptor to AFS cache file*/
598 int closeResult; /*Result of close()*/
601 printf("%s: Creating cache file '%s'\n",
603 cfd = open(fname, createAndTrunc, ownerRWmode);
605 printf("%s: Can't create '%s', error return is %d (%d)\n",
606 rn, fname, cfd, errno);
610 closeResult = fstat (cfd, statp);
612 printf("%s: Can't stat newly-created AFS cache file '%s' (code %d)\n",
617 closeResult = close(cfd);
619 printf("%s: Can't close newly-created AFS cache file '%s' (code %d)\n",
627 /*-----------------------------------------------------------------------------
631 * Sweep through the AFS cache directory, recording the inode number for
632 * each valid data cache file there. Also, delete any file that doesn't belong
633 * in the cache directory during this sweep, and remember which of the other
634 * residents of this directory were seen. After the sweep, we create any data
635 * cache files that were missing.
638 * vFilesFound : Set to the number of data cache files found.
641 * 0 if everything went well,
645 * This routine may be called several times. If the number of data cache files
646 * found is less than the global cacheFiles, then the caller will need to call it
647 * again to record the inodes of the missing zero-length data cache files created
648 * in the previous call.
651 * Fills up the global inode_for_V array, may create and/or delete files as
653 *---------------------------------------------------------------------------*/
656 static int doSweepAFSCache(vFilesFound,directory,dirNum,maxDir)
658 char *directory; /* /path/to/cache/directory */
659 int dirNum; /* current directory number */
660 int maxDir; /* maximum directory number */
662 static char rn[] = "doSweepAFSCache"; /* Routine Name */
663 char fullpn_FileToDelete[1024]; /*File to be deleted from cache*/
664 char *fileToDelete; /*Ptr to last component of above*/
665 DIR *cdirp; /*Ptr to cache directory structure*/
667 struct dirent64 *currp; /*Current directory entry*/
669 struct dirent *currp; /*Current directory entry*/
671 int vFileNum; /*Data cache file's associated number*/
672 int thisDir; /* A directory number */
676 printf("%s: Opening cache directory '%s'\n", rn, directory);
678 if (chmod(directory, 0700)) { /* force it to be 700 */
679 printf("%s: Can't 'chmod 0700' the cache dir, '%s'.\n", rn, directory);
682 cdirp = opendir(directory);
683 if (cdirp == (DIR *)0) {
684 printf("%s: Can't open AFS cache directory, '%s'.\n", rn, directory);
689 * Scan the directory entries, remembering data cache file inodes
690 * and the existance of other important residents. Recurse into
691 * the data subdirectories.
693 * Delete all files and directories that don't belong here.
695 sprintf(fullpn_FileToDelete, "%s/", directory);
696 fileToDelete = fullpn_FileToDelete + strlen(fullpn_FileToDelete);
699 for (currp = readdir64(cdirp); currp; currp = readdir64(cdirp))
701 for (currp = readdir(cdirp); currp; currp = readdir(cdirp))
705 printf("%s: Current directory entry:\n",
708 printf("\tinode=%lld, reclen=%d, name='%s'\n",
709 currp->d_ino, currp->d_reclen, currp->d_name);
711 printf("\tinode=%d, reclen=%d, name='%s'\n",
712 currp->d_ino, currp->d_reclen, currp->d_name);
717 * If dirNum < 0, we are a top-level cache directory and should
718 * only contain sub-directories and other sundry files. Therefore,
719 * V-files are valid only if dirNum >= 0, and Directories are only
720 * valid if dirNum < 0.
723 if (*(currp->d_name) == 'V' &&
724 ((vFileNum = GetVFileNumber(currp->d_name, cacheFiles)) >= 0)) {
726 * Found a valid data cache filename. Remember this
727 * file's inode, directory, and bump the number of files found
728 * total and in this directory.
730 inode_for_V[vFileNum] = currp->d_ino;
731 dir_for_V[vFileNum] = dirNum; /* remember this directory */
734 /* If we're in a real subdir, mark this file to be moved
735 * if we've already got too many files in this directory
738 cache_dir_list[dirNum]++; /* keep directory's file count */
739 if (cache_dir_list[dirNum] > nFilesPerDir) {
740 /* Too many files -- add to filelist */
741 struct afsd_file_list *tmp = (struct afsd_file_list *)
742 malloc(sizeof(*tmp));
744 printf ("%s: MALLOC FAILED allocating file_list entry\n",
747 tmp->fileNum = vFileNum;
748 tmp->next = cache_dir_filelist[dirNum];
749 cache_dir_filelist[dirNum] = tmp;
755 else if (dirNum < 0 && (*(currp->d_name) == 'D') &&
756 GetDDirNumber(currp->d_name, 1<<30) >= 0) {
758 if ((vFileNum = GetDDirNumber(currp->d_name, maxDir)) >= 0) {
759 /* Found a valid cachefile sub-Directory. Remember this number
760 * and recurse into it. Note that subdirs cannot have subdirs.
763 } else if ((vFileNum = GetDDirNumber(currp->d_name, 1<<30)) >= 0) {
764 /* This directory is going away, but figure out if there
765 * are any cachefiles in here that should be saved by
766 * moving them to other cache directories. This directory
767 * will be removed later.
772 /* Save the highest directory number we've seen */
773 if (vFileNum > highDir)
776 /* If this directory is staying, be sure to mark it as 'found' */
777 if (retval == 1) cache_dir_list[vFileNum] = 0;
779 /* Print the dirname for recursion */
780 sprintf(fileToDelete, "%s", currp->d_name);
782 /* Note: vFileNum is the directory number */
783 retval = doSweepAFSCache(vFilesFound, fullpn_FileToDelete,
784 vFileNum, (retval == 1 ? 0 : -1));
786 printf ("%s: Recursive sweep failed on directory %s\n",
791 else if (dirNum < 0 && strcmp(currp->d_name, DCACHEFILE) == 0) {
793 * Found the file holding the dcache entries.
795 missing_DCacheFile = 0;
797 else if (dirNum < 0 && strcmp(currp->d_name, VOLINFOFILE) == 0) {
799 * Found the file holding the volume info.
801 missing_VolInfoFile = 0;
803 else if ((strcmp(currp->d_name, ".") == 0) ||
804 (strcmp(currp->d_name, "..") == 0) ||
805 #ifdef AFS_DECOSF_ENV
806 /* these are magic AdvFS files */
807 (strcmp(currp->d_name, ".tags") == 0) ||
808 (strcmp(currp->d_name, "quota.user") == 0) ||
809 (strcmp(currp->d_name, "quota.group") == 0) ||
811 #ifdef AFS_LINUX22_ENV
812 /* this is the ext3 journal file */
813 (strcmp(currp->d_name, ".journal") == 0) ||
815 (strcmp(currp->d_name, "lost+found") == 0)) {
817 * Don't do anything - this file is legit, and is to be left alone.
822 * This file/directory doesn't belong in the cache. Nuke it.
824 sprintf(fileToDelete, "%s", currp->d_name);
826 printf("%s: Deleting '%s'\n",
827 rn, fullpn_FileToDelete);
828 if (unlink(fullpn_FileToDelete)) {
829 if (errno == EISDIR && *fileToDelete == 'D') {
830 if (rmdir(fullpn_FileToDelete)) {
831 printf("%s: Can't rmdir '%s', errno is %d\n",
832 rn, fullpn_FileToDelete, errno);
835 printf("%s: Can't unlink '%s', errno is %d\n",
836 rn, fullpn_FileToDelete, errno);
844 * Create all the cache files that are missing.
846 if (missing_DCacheFile) {
848 printf("%s: Creating '%s'\n",
849 rn, fullpn_DCacheFile);
850 if (CreateCacheFile(fullpn_DCacheFile, NULL))
851 printf("%s: Can't create '%s'\n",
852 rn, fullpn_DCacheFile);
854 if (missing_VolInfoFile) {
856 printf("%s: Creating '%s'\n",
857 rn, fullpn_VolInfoFile);
858 if (CreateCacheFile(fullpn_VolInfoFile, NULL))
859 printf("%s: Can't create '%s'\n",
860 rn, fullpn_VolInfoFile);
863 /* ADJUST CACHE FILES */
865 /* First, let's walk through the list of files and figure out
866 * if there are any leftover files in extra directories or
867 * missing files. Move the former and create the latter in
868 * subdirs with extra space.
871 thisDir = 0; /* Keep track of which subdir has space */
873 for (vFileNum = 0; vFileNum < cacheFiles; vFileNum++) {
874 if (dir_for_V[vFileNum] == -1) {
875 /* This file does not exist. Create it in the first
876 * subdir that still has extra space.
878 while (thisDir < maxDir &&
879 cache_dir_list[thisDir] >= nFilesPerDir)
881 if (thisDir >= maxDir)
882 printf("%s: can't find directory to create V%d\n", rn, vFileNum);
885 assert (inode_for_V[vFileNum] == (AFSD_INO_T)0);
886 sprintf(vFilePtr, "D%d/V%d", thisDir, vFileNum);
888 printf("%s: Creating '%s'\n", rn, fullpn_VFile);
889 if (cache_dir_list[thisDir] < 0 &&
890 CreateCacheSubDir(directory, thisDir))
891 printf("%s: Can't create directory for '%s'\n",
893 if (CreateCacheFile(fullpn_VFile, &statb))
894 printf("%s: Can't create '%s'\n", rn, fullpn_VFile);
896 inode_for_V[vFileNum] = statb.st_ino;
897 dir_for_V[vFileNum] = thisDir;
898 cache_dir_list[thisDir]++;
903 } else if (dir_for_V[vFileNum] >= maxDir ||
904 dir_for_V[vFileNum] == -2) {
905 /* This file needs to move; move it to the first subdir
906 * that has extra space. (-2 means it's in the toplevel)
908 while (thisDir < maxDir && cache_dir_list[thisDir] >= nFilesPerDir)
910 if (thisDir >= maxDir)
911 printf("%s: can't find directory to move V%d\n", rn, vFileNum);
913 if (MoveCacheFile (directory, dir_for_V[vFileNum], thisDir,
915 /* Cannot move. Ignore this file??? */
922 /* At this point, we've moved all of the valid cache files
923 * into the valid subdirs, and created all the extra
924 * cachefiles we need to create. Next, rebalance any subdirs
925 * with too many cache files into the directories with not
926 * enough cache files. Note that thisDir currently sits at
927 * the lowest subdir that _may_ have room.
930 for (dirNum = 0; dirNum < maxDir; dirNum++) {
931 struct afsd_file_list *thisFile;
933 for (thisFile = cache_dir_filelist[dirNum];
934 thisFile && cache_dir_list[dirNum] >= nFilesPerDir;
935 thisFile = thisFile->next) {
936 while (thisDir < maxDir && cache_dir_list[thisDir] >= nFilesPerDir)
938 if (thisDir >= maxDir)
939 printf("%s: can't find directory to move V%d\n", rn, vFileNum);
941 if (MoveCacheFile (directory, dirNum, thisDir,
942 thisFile->fileNum, maxDir)) {
943 /* Cannot move. Ignore this file??? */
947 } /* for each file to move */
948 } /* for each directory */
950 /* Remove any directories >= maxDir -- they should be empty */
951 for (; highDir >= maxDir; highDir--) {
952 sprintf(fileToDelete, "D%d", highDir);
953 if (unlink(fullpn_FileToDelete)) {
954 if (errno == EISDIR && *fileToDelete == 'D') {
955 if (rmdir(fullpn_FileToDelete)) {
956 printf("%s: Can't rmdir '%s', errno is %d\n",
957 rn, fullpn_FileToDelete, errno);
960 printf("%s: Can't unlink '%s', errno is %d\n",
961 rn, fullpn_FileToDelete, errno);
967 * Close the directory, return success.
970 printf("%s: Closing cache directory.\n",
976 int SweepAFSCache(vFilesFound)
979 static char rn[] = "SweepAFSCache"; /*Routine name*/
980 int maxDir = (cacheFiles + nFilesPerDir - 1 ) / nFilesPerDir;
985 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
987 printf("%s: Memory Cache, no cache sweep done\n", rn);
991 if (cache_dir_list == NULL) {
992 cache_dir_list = (int *) malloc (maxDir * sizeof(*cache_dir_list));
993 if (cache_dir_list == NULL) {
994 printf("%s: Malloc Failed!\n", rn);
997 for (i=0; i < maxDir; i++)
998 cache_dir_list[i] = -1; /* Does not exist */
1001 if (cache_dir_filelist == NULL) {
1002 cache_dir_filelist = (struct afsd_file_list **)
1003 malloc (maxDir * sizeof(*cache_dir_filelist));
1004 if (cache_dir_filelist == NULL) {
1005 printf("%s: Malloc Failed!\n", rn);
1008 memset (cache_dir_filelist, 0, maxDir * sizeof(*cache_dir_filelist));
1011 if (dir_for_V == NULL) {
1012 dir_for_V = (int *) malloc (cacheFiles * sizeof(*dir_for_V));
1013 if (dir_for_V == NULL) {
1014 printf("%s: Malloc Failed!\n", rn);
1017 for (i=0; i < cacheFiles; i++)
1018 dir_for_V[i] = -1; /* Does not exist */
1021 /* Note, setting dirNum to -2 here will cause cachefiles found in
1022 * the toplevel directory to be marked in directory "-2". This
1023 * allows us to differentiate between 'file not seen' (-1) and
1024 * 'file seen in top-level' (-2). Then when we try to move the
1025 * file into a subdirectory, we know it's in the top-level instead
1026 * of some other cache subdir.
1028 return doSweepAFSCache (vFilesFound, cacheBaseDir, -2, maxDir);
1031 static ConfigCell(aci, arock, adir)
1032 register struct afsconf_cell *aci;
1034 struct afsconf_dir *adir; {
1035 register int isHomeCell;
1037 afs_int32 cellFlags;
1038 afs_int32 hosts[MAXHOSTSPERCELL];
1040 /* figure out if this is the home cell */
1041 isHomeCell = (strcmp(aci->name, LclCellName) == 0);
1043 lookingForHomeCell = 0;
1044 cellFlags = 1; /* home cell, suid is ok */
1047 cellFlags = 2; /* not home, suid is forbidden */
1050 /* build address list */
1051 for(i=0;i<MAXHOSTSPERCELL;i++)
1052 memcpy(&hosts[i], &aci->hostAddr[i].sin_addr, sizeof(afs_int32));
1054 if (aci->linkedCell) cellFlags |= 4; /* Flag that linkedCell arg exists,
1055 for upwards compatibility */
1057 /* configure one cell */
1058 call_syscall(AFSOP_ADDCELL2,
1059 hosts, /* server addresses */
1060 aci->name, /* cell name */
1061 cellFlags, /* is this the home cell? */
1062 aci->linkedCell); /* Linked cell, if any */
1066 static ConfigCellAlias(aca, arock, adir)
1067 register struct afsconf_cellalias *aca;
1069 struct afsconf_dir *adir;
1071 /* push the alias into the kernel */
1072 call_syscall(AFSOP_ADDCELLALIAS, aca->aliasName, aca->realName);
1076 #ifdef AFS_AFSDB_ENV
1077 static AfsdbLookupHandler()
1079 afs_int32 kernelMsg[64];
1080 char acellName[128];
1082 struct afsconf_cell acellInfo;
1087 acellName[0] = '\0';
1090 /* On some platforms you only get 4 args to an AFS call */
1091 int sizeArg = ((sizeof acellName) << 16) | (sizeof kernelMsg);
1092 code = call_syscall(AFSOP_AFSDB_HANDLER, acellName, kernelMsg, sizeArg);
1093 if (code) { /* Something is wrong? */
1098 if (*acellName == 1) /* Shutting down */
1101 code = afsconf_GetAfsdbInfo(acellName, 0, &acellInfo);
1106 kernelMsg[0] = acellInfo.numServers;
1107 if (acellInfo.timeout)
1108 kernelMsg[1] = acellInfo.timeout - time(0);
1111 for (i=0; i<acellInfo.numServers; i++)
1112 kernelMsg[i+2] = acellInfo.hostAddr[i].sin_addr.s_addr;
1113 strncpy(acellName, acellInfo.name, sizeof(acellName));
1114 acellName[sizeof(acellName) - 1] = '\0';
1123 #include <sys/ioctl.h>
1126 #ifdef AFS_SGI65_ENV
1127 #define SET_RTPRI(P) { \
1128 struct sched_param sp; \
1129 sp.sched_priority = P; \
1130 if (sched_setscheduler(0, SCHED_RR, &sp)<0) { \
1131 perror("sched_setscheduler"); \
1134 #define SET_AFSD_RTPRI() SET_RTPRI(68)
1135 #define SET_RX_RTPRI() SET_RTPRI(199)
1137 #ifdef AFS_LINUX20_ENV
1138 #define SET_AFSD_RTPRI()
1139 #define SET_RX_RTPRI() do { if (setpriority(PRIO_PROCESS, 0, -10)<0) \
1140 perror("setting rx priority"); \
1143 #define SET_AFSD_RTPRI()
1144 #define SET_RX_RTPRI()
1149 register struct cmd_syndesc *as;
1152 static char rn[] = "afsd"; /*Name of this routine*/
1153 register afs_int32 code; /*Result of fork()*/
1155 int currVFile; /*Current AFS cache file number passed in*/
1156 int mountFlags; /*Flags passed to mount()*/
1157 int lookupResult; /*Result of GetLocalCellName()*/
1158 int cacheIteration; /*How many times through cache verification*/
1159 int vFilesFound; /*How many data cache files were found in sweep*/
1160 struct afsconf_dir *cdir; /* config dir */
1165 afs_int32 vfs1_type = -1;
1166 #ifdef AFS_SGI65_ENV
1167 struct sched_param sp;
1170 #ifdef AFS_SGI_VNODE_GLUE
1171 if (afs_init_kernel_config(-1) <0) {
1172 printf("Can't determine NUMA configuration, not starting AFS.\n");
1177 /* call atoi on the appropriate parsed results */
1178 if (as->parms[0].items) {
1180 cacheBlocks = atoi(as->parms[0].items->data);
1183 if (as->parms[1].items) {
1185 cacheFiles = atoi(as->parms[1].items->data);
1186 filesSet = 1; /* set when spec'd on cmd line */
1188 if (as->parms[2].items) {
1190 strcpy(rootVolume, as->parms[2].items->data);
1193 if (as->parms[3].items) {
1195 cacheStatEntries = atoi(as->parms[3].items->data);
1197 if (as->parms[4].items) {
1199 cacheBaseDir[0] = '\0';
1200 sawCacheBaseDir = 1;
1201 cacheFlags |= AFSCALL_INIT_MEMCACHE;
1205 if (as->parms[5].items) {
1207 strcpy(cacheBaseDir, as->parms[5].items->data);
1208 sawCacheBaseDir = 1;
1210 if (as->parms[6].items) {
1212 strcpy(cacheMountDir, as->parms[6].items->data);
1213 sawCacheMountDir = 1;
1215 if (as->parms[7].items) {
1217 nDaemons = atoi(as->parms[7].items->data);
1219 if (as->parms[8].items) {
1221 cacheSetTime = FALSE;
1223 if (as->parms[9].items) {
1227 if (as->parms[10].items) {
1231 if (as->parms[11].items) {
1236 if (as->parms[12].items) {
1238 chunkSize = atoi(as->parms[12].items->data);
1239 if (chunkSize < 0 || chunkSize > 30) {
1240 printf("afsd:invalid chunk size spec'd, using default\n");
1244 if (as->parms[13].items) {
1246 dCacheSize = atoi(as->parms[13].items->data);
1249 if (as->parms[14].items) {
1251 vCacheSize = atoi(as->parms[14].items->data);
1253 if (as->parms[15].items) {
1255 #ifndef AFS_AIX32_ENV
1256 printf("afsd: [-biods] currently only enabled for aix3.x VM supported systems\n");
1258 nBiods = atoi(as->parms[15].items->data);
1262 if (as->parms[16].items) {
1264 preallocs = atoi(as->parms[16].items->data);
1267 if (as->parms[17].items) {
1269 inodes = atoi(as->parms[17].items->data);
1272 strcpy(confDir, AFSDIR_CLIENT_ETC_DIRPATH);
1273 if (as->parms[17].items) {
1275 strcpy(confDir, as->parms[17].items->data);
1277 sprintf(fullpn_CacheInfo, "%s/%s", confDir, CACHEINFOFILE);
1278 sprintf(fullpn_AFSLogFile, "%s/%s", confDir, AFSLOGFILE);
1279 if (as->parms[18].items) {
1281 strcpy(fullpn_AFSLogFile, as->parms[18].items->data);
1283 if (as->parms[19].items) {
1285 afsd_CloseSynch = 1;
1287 if (as->parms[20].items) {
1291 * Cold shutdown is the default
1293 printf("afsd: Shutting down all afs processes and afs state\n");
1294 call_syscall(AFSOP_SHUTDOWN, 1);
1297 if (as->parms[21].items) {
1298 /* -enable_peer_stats */
1299 enable_peer_stats = 1;
1301 if (as->parms[22].items) {
1302 /* -enable_process_stats */
1303 enable_process_stats = 1;
1305 if (as->parms[23].items) {
1306 /* -mem_alloc_sleep */
1307 cacheFlags |= AFSCALL_INIT_MEMCACHE_SLEEP;
1309 if (as->parms[24].items) {
1311 #ifdef AFS_AFSDB_ENV
1314 printf("afsd: No AFSDB support; ignoring -afsdb");
1317 if (as->parms[25].items) {
1318 /* -files_per_subdir */
1319 int res = atoi(as->parms[25].items->data);
1320 if ( res < 10 || res > 2^30) {
1321 printf("afsd:invalid number of files per subdir, \"%s\". Ignored\n", as->parms[25].items->data);
1326 if (as->parms[26].items) {
1330 if (as->parms[27].items) {
1332 enable_fakestat = 1;
1336 * Pull out all the configuration info for the workstation's AFS cache and
1337 * the cellular community we're willing to let our users see.
1339 cdir = afsconf_Open(confDir);
1341 printf("afsd: some file missing or bad in %s\n", confDir);
1345 lookupResult = afsconf_GetLocalCell(cdir, LclCellName, sizeof(LclCellName));
1347 printf("%s: Can't get my home cell name! [Error is %d]\n",
1352 printf("%s: My home cell is '%s'\n",
1356 /* parse cacheinfo file if this is a diskcache */
1357 if (ParseCacheInfoFile()) {
1361 if ((logfd = fopen(fullpn_AFSLogFile,"r+")) == 0) {
1362 if (afsd_verbose) printf("%s: Creating '%s'\n", rn, fullpn_AFSLogFile);
1363 if (CreateCacheFile(fullpn_AFSLogFile, NULL)) {
1364 printf("%s: Can't create '%s' (You may want to use the -logfile option)\n", rn, fullpn_AFSLogFile);
1370 /* do some random computations in memcache case to get things to work
1371 * reasonably no matter which parameters you set.
1373 if (cacheFlags & AFSCALL_INIT_MEMCACHE) {
1374 /* memory cache: size described either as blocks or dcache entries, but
1377 if (sawDCacheSize) {
1378 if (sawCacheBlocks) {
1379 printf("%s: can't set cache blocks and dcache size simultaneously when diskless.\n", rn);
1382 /* compute the cache size based on # of chunks times the chunk size */
1383 i = (chunkSize == 0? 13 : chunkSize);
1384 i = (1<<i); /* bytes per chunk */
1385 cacheBlocks = i * dCacheSize;
1386 sawCacheBlocks = 1; /* so that ParseCacheInfoFile doesn't overwrite */
1389 /* compute the dcache size from overall cache size and chunk size */
1390 i = (chunkSize == 0? 13 : chunkSize);
1391 /* dCacheSize = (cacheBlocks << 10) / (1<<i); */
1393 dCacheSize = (cacheBlocks >> (i-10));
1394 } else if (i < 10) {
1395 dCacheSize = (cacheBlocks << (10-i));
1397 dCacheSize = cacheBlocks;
1399 /* don't have to set sawDCacheSize here since it isn't overwritten
1400 * by ParseCacheInfoFile.
1403 /* kernel computes # of dcache entries as min of cacheFiles and dCacheSize,
1404 * so we now make them equal.
1406 cacheFiles = dCacheSize;
1410 * Compute the number of cache files based on cache size,
1411 * but only if -files isn't given on the command line.
1412 * Don't let # files be so small as to prevent full utilization
1413 * of the cache unless user has explicitly asked for it.
1414 * average V-file is ~10K, according to tentative empirical studies.
1417 cacheFiles = cacheBlocks / 10;
1418 if (cacheFiles < 100) cacheFiles = 100;
1419 /* Always allow more files than chunks. Presume average V-file
1420 * is ~67% of a chunk... (another guess, perhaps Honeyman will
1421 * have a grad student write a paper). i is KILOBYTES.
1423 i = 1 << (chunkSize == 0? 6 : (chunkSize<10 ? 0 : chunkSize -10));
1424 cacheFiles = max(cacheFiles, 1.5 * (cacheBlocks / i));
1425 /* never permit more files than blocks, while leaving space for
1426 * VolumeInfo and CacheItems files. VolumeInfo is usually 20K,
1427 * CacheItems is 50 Bytes / file (== 1K/20)
1429 #define VOLINFOSZ 20
1430 #define CACHEITMSZ (cacheFiles / 20)
1432 cacheFiles= min(cacheFiles,(cacheBlocks -VOLINFOSZ -CACHEITMSZ)/4);
1434 cacheFiles = min(cacheFiles, cacheBlocks - VOLINFOSZ - CACHEITMSZ);
1436 if (cacheFiles < 100)
1437 fprintf (stderr, "%s: WARNING: cache probably too small!\n", rn);
1439 if (!sawDCacheSize) {
1440 if ((cacheFiles / 2) > dCacheSize)
1441 dCacheSize = cacheFiles / 2;
1442 if (dCacheSize > 2000)
1448 * Create and zero the inode table for the desired cache files.
1450 inode_for_V = (AFSD_INO_T *) malloc(cacheFiles * sizeof(AFSD_INO_T));
1451 if (inode_for_V == (AFSD_INO_T *)0) {
1452 printf("%s: malloc() failed for cache file inode table with %d entries.\n",
1456 memset(inode_for_V, '\0', (cacheFiles * sizeof(AFSD_INO_T)));
1458 printf("%s: %d inode_for_V entries at 0x%x, %d bytes\n",
1459 rn, cacheFiles, inode_for_V,
1460 (cacheFiles * sizeof(AFSD_INO_T)));
1463 * Set up all the pathnames we'll need for later.
1465 sprintf(fullpn_DCacheFile, "%s/%s", cacheBaseDir, DCACHEFILE);
1466 sprintf(fullpn_VolInfoFile, "%s/%s", cacheBaseDir, VOLINFOFILE);
1467 sprintf(fullpn_VFile, "%s/", cacheBaseDir);
1468 vFilePtr = fullpn_VFile + strlen(fullpn_VFile);
1471 fputs(AFS_GOVERNMENT_MESSAGE, stdout);
1476 * Set up all the kernel processes needed for AFS.
1479 setpgrp(getpid(), 0);
1482 /* Initialize RX daemons and services */
1484 /* initialize the rx random number generator from user space */
1486 /* parse multihomed address files */
1487 afs_int32 addrbuf[MAXIPADDRS],maskbuf[MAXIPADDRS],mtubuf[MAXIPADDRS];
1489 code=parseNetFiles(addrbuf,maskbuf,mtubuf,MAXIPADDRS,reason,
1490 AFSDIR_CLIENT_NETINFO_FILEPATH,
1491 AFSDIR_CLIENT_NETRESTRICT_FILEPATH);
1493 call_syscall(AFSOP_ADVISEADDR, code, addrbuf, maskbuf, mtubuf);
1495 printf("ADVISEADDR: Error in specifying interface addresses:%s\n",reason);
1498 /* Set realtime priority for most threads to same as for biod's. */
1501 #ifdef AFS_SGI53_ENV
1502 #ifdef AFS_SGI61_ENV
1504 #else /* AFS_SGI61_ENV */
1505 code = get_nfsstaticaddr();
1507 call_syscall(AFSOP_NFSSTATICADDR, code);
1508 #endif /* AFS_SGI61_ENV */
1509 #endif /* AFS_SGI_53_ENV */
1511 /* Start listener, then callback listener. Lastly, start rx event daemon.
1512 * Change in ordering is so that Linux port has socket fd in listener
1514 * preallocs are passed for both listener and callback server. Only
1515 * the one which actually does the initialization uses them though.
1517 if (preallocs < cacheStatEntries+50)
1518 preallocs = cacheStatEntries+50;
1519 #ifdef RXK_LISTENER_ENV
1521 printf("%s: Forking rx listener daemon.\n", rn);
1525 SET_RX_RTPRI(); /* max advised for non-interrupts */
1526 call_syscall(AFSOP_RXLISTENER_DAEMON,
1529 enable_process_stats);
1534 printf("%s: Forking rx callback listener.\n", rn);
1538 call_syscall(AFSOP_START_RXCALLBACK, preallocs);
1541 #if defined(AFS_SUN5_ENV) || defined(RXK_LISTENER_ENV)
1543 printf("%s: Forking rxevent daemon.\n", rn);
1547 SET_RX_RTPRI(); /* max advised for non-interrupts */
1548 call_syscall(AFSOP_RXEVENT_DAEMON);
1553 #ifdef AFS_AFSDB_ENV
1556 printf("%s: Forking AFSDB lookup handler.\n", rn);
1559 AfsdbLookupHandler();
1565 if (enable_dynroot) {
1567 printf("%s: Enabling dynroot support in kernel.\n", rn);
1568 code = call_syscall(AFSOP_SET_DYNROOT, 1);
1570 printf("%s: Error enabling dynroot support.\n", rn);
1573 if (enable_fakestat) {
1575 printf("%s: Enabling fakestat support in kernel.\n", rn);
1576 code = call_syscall(AFSOP_SET_FAKESTAT, 1);
1578 printf("%s: Error enabling fakestat support.\n", rn);
1581 /* Initialize AFS daemon threads. */
1583 printf("%s: Forking AFS daemon.\n", rn);
1587 call_syscall(AFSOP_START_AFS);
1592 printf("%s: Forking Check Server Daemon.\n", rn);
1596 code = call_syscall(AFSOP_START_CS);
1598 printf("%s: No check server daemon in client.\n", rn);
1603 printf("%s: Forking %d background daemons.\n", rn, nDaemons);
1604 #if defined(AFS_SGI_ENV) && defined(AFS_SGI_SHORTSTACK)
1605 /* Add one because for sgi we always "steal" the first daemon for a
1606 * different task if we only have a 4K stack.
1610 for (i=0;i<nDaemons;i++) {
1614 #ifdef AFS_AIX32_ENV
1615 call_syscall(AFSOP_START_BKG, 0);
1617 call_syscall(AFSOP_START_BKG);
1622 #ifdef AFS_AIX32_ENV
1624 nBiods = nDaemons * 2;
1627 for (i=0; i< nBiods;i++) {
1629 if (code == 0) { /* Child */
1630 call_syscall(AFSOP_START_BKG, nBiods);
1637 * Tell the kernel about each cell in the configuration.
1639 lookingForHomeCell = 1;
1641 afsconf_CellApply(cdir, ConfigCell, (char *) 0);
1642 afsconf_CellAliasApply(cdir, ConfigCellAlias, (char *) 0);
1645 * If we're still looking for the home cell after the whole cell configuration database
1646 * has been parsed, there's something wrong.
1648 if (lookingForHomeCell) {
1649 printf("%s: Can't find information for home cell '%s' in cell database!\n",
1654 * If the root volume has been explicitly set, tell the kernel.
1658 printf("%s: Calling AFSOP_ROOTVOLUME with '%s'\n",
1660 call_syscall(AFSOP_ROOTVOLUME, rootVolume);
1664 * Tell the kernel some basic information about the workstation's cache.
1667 printf("%s: Calling AFSOP_CACHEINIT: %d stat cache entries, %d optimum cache files, %d blocks in the cache, flags = 0x%x, dcache entries %d\n",
1668 rn, cacheStatEntries, cacheFiles, cacheBlocks, cacheFlags,
1670 memset(&cparams, '\0', sizeof(cparams));
1671 cparams.cacheScaches = cacheStatEntries;
1672 cparams.cacheFiles = cacheFiles;
1673 cparams.cacheBlocks = cacheBlocks;
1674 cparams.cacheDcaches = dCacheSize;
1675 cparams.cacheVolumes = vCacheSize;
1676 cparams.chunkSize = chunkSize;
1677 cparams.setTimeFlag = cacheSetTime;
1678 cparams.memCacheFlag = cacheFlags;
1680 cparams.inodes = inodes;
1682 call_syscall(AFSOP_CACHEINIT, &cparams);
1683 if (afsd_CloseSynch)
1684 call_syscall(AFSOP_CLOSEWAIT);
1687 * Sweep the workstation AFS cache directory, remembering the inodes of
1688 * valid files and deleting extraneous files. Keep sweeping until we
1689 * have the right number of data cache files or we've swept too many
1693 printf("%s: Sweeping workstation's AFS cache directory.\n",
1696 /* Memory-cache based system doesn't need any of this */
1697 if(!(cacheFlags & AFSCALL_INIT_MEMCACHE)) {
1700 if (SweepAFSCache(&vFilesFound)) {
1701 printf("%s: Error on sweep %d of workstation AFS cache \
1702 directory.\n", rn, cacheIteration);
1706 printf("%s: %d out of %d data cache files found in sweep %d.\n",
1707 rn, vFilesFound, cacheFiles, cacheIteration);
1708 } while ((vFilesFound < cacheFiles) &&
1709 (cacheIteration < MAX_CACHE_LOOPS));
1710 } else if(afsd_verbose)
1711 printf("%s: Using memory cache, not swept\n", rn);
1714 * Pass the kernel the name of the workstation cache file holding the
1718 printf("%s: Calling AFSOP_CACHEINFO: dcache file is '%s'\n",
1719 rn, fullpn_DCacheFile);
1720 /* once again, meaningless for a memory-based cache. */
1721 if(!(cacheFlags & AFSCALL_INIT_MEMCACHE))
1722 call_syscall(AFSOP_CACHEINFO, fullpn_DCacheFile);
1725 * Pass the kernel the name of the workstation cache file holding the
1726 * volume information.
1729 printf("%s: Calling AFSOP_VOLUMEINFO: volume info file is '%s'\n",
1730 rn, fullpn_VolInfoFile);
1731 call_syscall(AFSOP_VOLUMEINFO,fullpn_VolInfoFile);
1734 * Pass the kernel the name of the afs logging file holding the volume
1738 printf("%s: Calling AFSOP_AFSLOG: volume info file is '%s'\n",
1739 rn, fullpn_AFSLogFile);
1740 #if defined(AFS_SGI_ENV)
1741 /* permit explicit -logfile argument to enable logging on memcache systems */
1742 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE) || as->parms[18].items)
1744 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... nor this ... */
1746 call_syscall(AFSOP_AFSLOG,fullpn_AFSLogFile);
1749 * Give the kernel the names of the AFS files cached on the workstation's
1753 printf("%s: Calling AFSOP_CACHEINODE for each of the %d files in '%s'\n",
1754 rn, cacheFiles, cacheBaseDir);
1755 if (!(cacheFlags & AFSCALL_INIT_MEMCACHE)) /* ... and again ... */
1756 for (currVFile = 0; currVFile < cacheFiles; currVFile++) {
1757 #ifdef AFS_SGI62_ENV
1758 call_syscall(AFSOP_CACHEINODE,
1759 (afs_uint32)(inode_for_V[currVFile]>>32),
1760 (afs_uint32)(inode_for_V[currVFile] & 0xffffffff));
1762 call_syscall(AFSOP_CACHEINODE, inode_for_V[currVFile]);
1768 * All the necessary info has been passed into the kernel to run an AFS
1769 * system. Give the kernel our go-ahead.
1772 printf("%s: Calling AFSOP_GO with cacheSetTime = %d\n",
1774 call_syscall(AFSOP_GO, cacheSetTime);
1777 * At this point, we have finished passing the kernel all the info
1778 * it needs to set up the AFS. Mount the AFS root.
1780 printf("%s: All AFS daemons started.\n", rn);
1783 printf("%s: Forking trunc-cache daemon.\n", rn);
1787 call_syscall(AFSOP_START_TRUNCDAEMON);
1791 mountFlags = 0; /* Read/write file system, can do setuid() */
1792 #if defined(AFS_SUN_ENV) || defined(AFS_SUN5_ENV)
1794 mountFlags |= MS_DATA;
1796 mountFlags |= M_NEWTYPE; /* This searches by name in vfs_conf.c so don't need to recompile vfs.c because MOUNT_MAXTYPE has changed; it seems that Sun fixed this at last... */
1800 #if defined(AFS_HPUX100_ENV)
1801 mountFlags |= MS_DATA;
1805 printf("%s: Mounting the AFS root on '%s', flags: %d.\n",
1806 rn, cacheMountDir, mountFlags);
1808 if ((mount("AFS",cacheMountDir,mountFlags,GT_AFS,(caddr_t) 0)) < 0) {
1811 if ((mount("AFS",cacheMountDir,mountFlags,(caddr_t) 0)) < 0) {
1814 if ((fsmount(MOUNT_AFS,cacheMountDir,mountFlags,(caddr_t) 0)) < 0) {
1819 #if defined(AFS_HPUX100_ENV)
1820 if ((mount("",cacheMountDir,mountFlags,"afs", (char *)0, 0)) < 0) {
1823 #if defined(AFS_HPUX90_ENV)
1828 strcpy(buffer, "afs");
1829 code = vfsmount(-1,cacheMountDir,mountFlags,(caddr_t) buffer);
1830 sscanf(buffer, "%d", &vfs1_type);
1832 printf("Can't find 'afs' type in the registered filesystem table!\n");
1835 sscanf(buffer, "%d", &vfs1_type);
1837 printf("AFS vfs slot number is %d\n", vfs1_type);
1839 if ((vfsmount(vfs1_type,cacheMountDir,mountFlags,(caddr_t) 0)) < 0) {
1841 if (call_syscall(AFSOP_AFS_VFSMOUNT, MOUNT_AFS, cacheMountDir,
1842 mountFlags, (caddr_t)NULL) < 0) {
1846 if ((mount("AFS",cacheMountDir,mountFlags,"afs", (char *)0, 0)) < 0) {
1848 #if defined(AFS_SGI_ENV)
1849 mountFlags = MS_FSS;
1850 if ((mount(MOUNT_AFS,cacheMountDir,mountFlags,(caddr_t) MOUNT_AFS)) < 0) {
1852 #ifdef AFS_LINUX20_ENV
1853 if ((mount("AFS", cacheMountDir, MOUNT_AFS, 0, NULL))<0) {
1855 /* This is the standard mount used by the suns and rts */
1856 if ((mount(MOUNT_AFS,cacheMountDir,mountFlags,(caddr_t) 0)) < 0) {
1857 #endif /* AFS_LINUX20_ENV */
1858 #endif /* AFS_SGI_ENV */
1859 #endif /* AFS_SUN5_ENV */
1860 #endif /* AFS_HPUX100_ENV */
1861 #endif /* AFS_HPUX_ENV */
1862 #endif /* AFS_AIX_ENV */
1863 #endif /* AFS_AUX_ENV */
1864 #endif /* AFS_FBSD_ENV */
1865 #endif /* AFS_DEC_ENV */
1866 printf("%s: Can't mount AFS on %s(%d)\n",
1867 rn, cacheMountDir, errno);
1875 printf("%s: Forking 'rmtsys' daemon.\n", rn);
1884 * Exit successfully.
1889 #include "AFS_component_version_number.c"
1896 register struct cmd_syndesc *ts;
1898 ts = cmd_CreateSyntax((char *) 0, mainproc, (char *) 0, "start AFS");
1899 cmd_AddParm(ts, "-blocks", CMD_SINGLE, CMD_OPTIONAL, "1024 byte blocks in cache");
1900 cmd_AddParm(ts, "-files", CMD_SINGLE, CMD_OPTIONAL, "files in cache");
1901 cmd_AddParm(ts, "-rootvol", CMD_SINGLE, CMD_OPTIONAL, "name of AFS root volume");
1902 cmd_AddParm(ts, "-stat", CMD_SINGLE, CMD_OPTIONAL, "number of stat entries");
1903 cmd_AddParm(ts, "-memcache", CMD_FLAG, CMD_OPTIONAL, "run diskless");
1904 cmd_AddParm(ts, "-cachedir", CMD_SINGLE, CMD_OPTIONAL, "cache directory");
1905 cmd_AddParm(ts, "-mountdir", CMD_SINGLE, CMD_OPTIONAL, "mount location");
1906 cmd_AddParm(ts, "-daemons", CMD_SINGLE, CMD_OPTIONAL, "number of daemons to use");
1907 cmd_AddParm(ts, "-nosettime", CMD_FLAG, CMD_OPTIONAL, "don't set the time");
1908 cmd_AddParm(ts, "-verbose", CMD_FLAG, CMD_OPTIONAL, "display lots of information");
1909 cmd_AddParm(ts, "-rmtsys", CMD_FLAG, CMD_OPTIONAL, "start NFS rmtsysd program");
1910 cmd_AddParm(ts, "-debug", CMD_FLAG, CMD_OPTIONAL, "display debug info");
1911 cmd_AddParm(ts, "-chunksize", CMD_SINGLE, CMD_OPTIONAL, "log(2) of chunk size");
1912 cmd_AddParm(ts, "-dcache", CMD_SINGLE, CMD_OPTIONAL, "number of dcache entries");
1913 cmd_AddParm(ts, "-volumes", CMD_SINGLE, CMD_OPTIONAL, "number of volume entries");
1914 cmd_AddParm(ts, "-biods", CMD_SINGLE, CMD_OPTIONAL, "number of bkg I/O daemons (aix vm)");
1916 cmd_AddParm(ts, "-prealloc", CMD_SINGLE, CMD_OPTIONAL, "number of 'small' preallocated blocks");
1918 cmd_AddParm(ts, "-pininodes", CMD_SINGLE, CMD_OPTIONAL, "number of inodes to hog");
1920 cmd_AddParm(ts, "-confdir", CMD_SINGLE, CMD_OPTIONAL, "configuration directory");
1921 cmd_AddParm(ts, "-logfile", CMD_SINGLE, CMD_OPTIONAL, "Place to keep the CM log");
1922 cmd_AddParm(ts, "-waitclose", CMD_FLAG, CMD_OPTIONAL, "make close calls synchronous");
1923 cmd_AddParm(ts, "-shutdown", CMD_FLAG, CMD_OPTIONAL, "Shutdown all afs state");
1924 cmd_AddParm(ts, "-enable_peer_stats", CMD_FLAG, CMD_OPTIONAL|CMD_HIDE, "Collect rpc statistics by peer");
1925 cmd_AddParm(ts, "-enable_process_stats", CMD_FLAG, CMD_OPTIONAL|CMD_HIDE, "Collect rpc statistics for this process");
1926 cmd_AddParm(ts, "-mem_alloc_sleep", CMD_FLAG, (CMD_OPTIONAL | CMD_HIDE), "Allow sleeps when allocating memory cache");
1927 cmd_AddParm(ts, "-afsdb", CMD_FLAG, (CMD_OPTIONAL
1928 #ifndef AFS_AFSDB_ENV
1931 ), "Enable AFSDB support");
1932 cmd_AddParm(ts, "-files_per_subdir", CMD_SINGLE, CMD_OPTIONAL, "log(2) of the number of cache files per cache subdirectory");
1933 cmd_AddParm(ts, "-dynroot", CMD_FLAG, CMD_OPTIONAL, "Enable dynroot support");
1934 cmd_AddParm(ts, "-fakestat", CMD_FLAG, CMD_OPTIONAL, "Enable fakestat support");
1935 return (cmd_Dispatch(argc, argv));
1940 #define MOUNTED_TABLE MNT_MNTTAB
1943 #define MOUNTED_TABLE MNTTAB
1945 #define MOUNTED_TABLE MOUNTED
1949 static int HandleMTab() {
1950 #if (defined (AFS_SUN_ENV) || defined (AFS_HPUX_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)) && !defined(AFS_SUN58_ENV)
1954 struct mnttab tmntent;
1956 memset(&tmntent, '\0', sizeof(struct mnttab));
1957 if (!(tfilep = fopen(MOUNTED_TABLE, "a+"))) {
1958 printf("Can't open %s\n", MOUNTED_TABLE);
1962 tmntent.mnt_special = "AFS";
1963 tmntent.mnt_mountp = cacheMountDir;
1964 tmntent.mnt_fstype = "xx";
1965 tmntent.mnt_mntopts = "rw";
1966 sprintf(tbuf, "%ld", (long)time((time_t *)0));
1967 tmntent.mnt_time = tbuf;
1968 putmntent(tfilep, &tmntent);
1971 #if defined(AFS_SGI_ENV) || defined(AFS_LINUX20_ENV)
1972 struct mntent tmntent;
1974 tfilep = setmntent("/etc/mtab", "a+");
1975 tmntent.mnt_fsname = "AFS";
1976 tmntent.mnt_dir = cacheMountDir;
1977 tmntent.mnt_type = "afs";
1978 tmntent.mnt_opts = "rw";
1979 tmntent.mnt_freq = 1;
1980 tmntent.mnt_passno = 3;
1981 addmntent(tfilep, &tmntent);
1984 struct mntent tmntent;
1986 memset(&tmntent, '\0', sizeof(struct mntent));
1987 tfilep = setmntent(MOUNTED_TABLE, "a+");
1989 printf("Can't open %s for write; Not adding afs entry to it\n",
1993 tmntent.mnt_fsname = "AFS";
1994 tmntent.mnt_dir = cacheMountDir;
1995 tmntent.mnt_type = "xx";
1996 tmntent.mnt_opts = "rw";
1997 tmntent.mnt_freq = 1;
1998 tmntent.mnt_passno = 3;
2000 tmntent.mnt_time = time(0);
2001 tmntent.mnt_cnode = 0;
2003 addmntent(tfilep, &tmntent);
2005 #endif /* AFS_SGI_ENV */
2006 #endif /* AFS_SUN5_ENV */
2007 #endif /* unreasonable systems */
2011 #if !defined(AFS_SGI_ENV) && !defined(AFS_AIX32_ENV)
2012 call_syscall(param1, param2, param3, param4, param5, param6, param7)
2013 long param1, param2, param3, param4, param5, param6, param7;
2016 #ifdef AFS_LINUX20_ENV
2027 error = syscall(AFS_SYSCALL, AFSCALL_CALL, param1, param2, param3, param4, param5, param6, param7);
2028 if (afsd_verbose) printf("SScall(%d, %d, %d)=%d ", AFS_SYSCALL, AFSCALL_CALL, param1, error);
2031 #else /* AFS_AIX32_ENV */
2032 #if defined(AFS_SGI_ENV)
2033 call_syscall(call, parm0, parm1, parm2, parm3, parm4)
2038 error = afs_syscall(call, parm0, parm1, parm2, parm3, parm4);
2039 if (afsd_verbose) printf("SScall(%d, %d)=%d ", call, parm0, error);
2044 call_syscall(call, parm0, parm1, parm2, parm3, parm4, parm5, parm6) {
2046 return syscall(AFSCALL_CALL, call, parm0, parm1, parm2, parm3, parm4, parm5, parm6);
2048 #endif /* AFS_SGI_ENV */
2049 #endif /* AFS_AIX32_ENV */
2053 /* Special handling for AIX's afs mount operation since they require much more miscl. information before making the vmount(2) syscall */
2054 #include <sys/vfs.h>
2056 #define ROUNDUP(x) (((x) + 3) & ~3)
2059 struct vmount *vmountp;
2062 size = sizeof(struct vmount) + ROUNDUP(strlen(cacheMountDir)+1) + 5*4;
2063 /* Malloc the vmount structure */
2064 if ((vmountp = (struct vmount *)malloc(size)) == (struct vmount *)NULL) {
2065 printf("Can't allocate space for the vmount structure (AIX)\n");
2069 /* zero out the vmount structure */
2070 memset(vmountp, '\0', size);
2072 /* transfer info into the vmount structure */
2073 vmountp->vmt_revision = VMT_REVISION;
2074 vmountp->vmt_length = size;
2075 vmountp->vmt_fsid.fsid_dev = 0;
2076 vmountp->vmt_fsid.fsid_type = AFS_MOUNT_AFS;
2077 vmountp->vmt_vfsnumber = 0;
2078 vmountp->vmt_time = 0;/* We'll put the time soon! */
2079 vmountp->vmt_flags = VFS_DEVMOUNT; /* read/write permission */
2080 vmountp->vmt_gfstype = AFS_MOUNT_AFS;
2081 vmountdata(vmountp, "AFS", cacheMountDir, "", "", "", "rw");
2083 /* Do the actual mount system call */
2084 error = vmount(vmountp, size);
2089 vmountdata(vmtp, obj, stub, host, hostsname, info, args)
2090 struct vmount *vmtp;
2091 char *obj, *stub, *host, *hostsname, *info, *args;
2093 register struct data {
2099 vdp = (struct data *)vmtp->vmt_data;
2100 vdp->vmt_off = sizeof(struct vmount);
2101 size = ROUNDUP(strlen(obj) + 1);
2102 vdp->vmt_size = size;
2103 strcpy(vmt2dataptr(vmtp, VMT_OBJECT), obj);
2107 vdp->vmt_off = vdprev->vmt_off + size;
2108 size = ROUNDUP(strlen(stub) + 1);
2109 vdp->vmt_size = size;
2110 strcpy(vmt2dataptr(vmtp, VMT_STUB), stub);
2114 vdp->vmt_off = vdprev->vmt_off + size;
2115 size = ROUNDUP(strlen(host) + 1);
2116 vdp->vmt_size = size;
2117 strcpy(vmt2dataptr(vmtp, VMT_HOST), host);
2121 vdp->vmt_off = vdprev->vmt_off + size;
2122 size = ROUNDUP(strlen(hostsname) + 1);
2123 vdp->vmt_size = size;
2124 strcpy(vmt2dataptr(vmtp, VMT_HOSTNAME), hostsname);
2129 vdp->vmt_off = vdprev->vmt_off + size;
2130 size = ROUNDUP(strlen(info) + 1);
2131 vdp->vmt_size = size;
2132 strcpy(vmt2dataptr(vmtp, VMT_INFO), info);
2136 vdp->vmt_off = vdprev->vmt_off + size;
2137 size = ROUNDUP(strlen(args) + 1);
2138 vdp->vmt_size = size;
2139 strcpy(vmt2dataptr(vmtp, VMT_ARGS), args);
2141 #endif /* AFS_AIX_ENV */
2143 #ifdef AFS_SGI53_ENV
2144 #ifdef AFS_SGI61_ENV
2145 /* The dwarf structures are searched to find entry points of static functions
2146 * and the addresses of static variables. The file name as well as the
2147 * sybmol name is reaquired.
2150 /* Contains list of names to find in given file. */
2152 char *name; /* Name of variable or function. */
2153 afs_hyper_t addr; /* Address of function, undefined if not found. */
2154 Dwarf_Half type; /* DW_AT_location for vars, DW_AT_lowpc for func's */
2155 char found; /* set if found. */
2159 char *file; /* Name of file containing vars or funcs */
2160 staticAddrList *addrList; /* List of vars and/or funcs. */
2161 int nAddrs; /* # of addrList's */
2162 int found; /* set if we've found this file already. */
2165 /* routines used to find addresses in /unix */
2166 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2167 void findMDebugStaticAddresses(staticNameList *, int, int);
2169 void findDwarfStaticAddresses(staticNameList *, int);
2170 void findElfAddresses(Dwarf_Debug, Dwarf_Die, staticNameList *);
2171 void getElfAddress(Dwarf_Debug, Dwarf_Die, staticAddrList *);
2173 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2174 #define AFS_N_FILELISTS 2
2175 #define AFS_SYMS_NEEDED 3
2176 #else /* AFS_SGI62_ENV */
2177 #define AFS_N_FILELISTS 1
2178 #endif /* AFS_SGI62_ENV */
2182 void set_staticaddrs(void)
2184 staticNameList fileList[AFS_N_FILELISTS];
2186 fileList[0].addrList = (staticAddrList*)calloc(1, sizeof(staticAddrList));
2187 if (!fileList[0].addrList) {
2188 printf("set_staticaddrs: Can't calloc fileList[0].addrList\n");
2191 fileList[0].file = "nfs_server.c";
2192 fileList[0].found = 0;
2193 fileList[0].nAddrs = 1;
2194 fileList[0].addrList[0].name = "rfsdisptab_v2";
2195 fileList[0].addrList[0].type = DW_AT_location;
2196 fileList[0].addrList[0].found = 0;
2198 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2199 fileList[1].addrList = (staticAddrList*)calloc(2, sizeof(staticAddrList));
2200 if (!fileList[1].addrList) {
2201 printf("set_staticaddrs: Can't malloc fileList[1].addrList\n");
2204 fileList[1].file = "uipc_socket.c";
2205 fileList[1].found = 0;
2206 fileList[1].nAddrs = 2;
2207 fileList[1].addrList[0].name = "sblock";
2208 fileList[1].addrList[0].type = DW_AT_low_pc;
2209 fileList[1].addrList[0].found = 0;
2210 fileList[1].addrList[1].name = "sbunlock";
2211 fileList[1].addrList[1].type = DW_AT_low_pc;
2212 fileList[1].addrList[1].found = 0;
2214 if (64 != sysconf(_SC_KERN_POINTERS))
2215 findMDebugStaticAddresses(fileList, AFS_N_FILELISTS, AFS_SYMS_NEEDED);
2217 #endif /* AFS_SGI62_ENV */
2218 findDwarfStaticAddresses(fileList, AFS_N_FILELISTS);
2220 if (fileList[0].addrList[0].found) {
2221 call_syscall(AFSOP_NFSSTATICADDR2, fileList[0].addrList[0].addr.high,
2222 fileList[0].addrList[0].addr.low);
2226 printf("NFS V2 is not present in the kernel.\n");
2228 free(fileList[0].addrList);
2229 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2230 if (fileList[1].addrList[0].found && fileList[1].addrList[1].found) {
2231 call_syscall(AFSOP_SBLOCKSTATICADDR2,
2232 fileList[1].addrList[0].addr.high,
2233 fileList[1].addrList[0].addr.low,
2234 fileList[1].addrList[1].addr.high,
2235 fileList[1].addrList[1].addr.low);
2238 if (!fileList[1].addrList[0].found)
2239 printf("Can't find %s in kernel. Exiting.\n",
2240 fileList[1].addrList[0].name);
2241 if (!fileList[1].addrList[0].found)
2242 printf("Can't find %s in kernel. Exiting.\n",
2243 fileList[1].addrList[1].name);
2246 free(fileList[1].addrList);
2247 #endif /* AFS_SGI62_ENV */
2251 /* Find addresses for static variables and functions. */
2253 findDwarfStaticAddresses(staticNameList * nameList, int nLists)
2260 char *hname = (char*)0;
2261 Dwarf_Unsigned dwarf_access = O_RDONLY;
2262 Dwarf_Debug dwarf_debug;
2263 Dwarf_Error dwarf_error;
2264 Dwarf_Unsigned dwarf_cu_header_length;
2265 Dwarf_Unsigned dwarf_abbrev_offset;
2266 Dwarf_Half dwarf_address_size;
2267 Dwarf_Unsigned next_cu_header;
2268 Dwarf_Die dwarf_die;
2269 Dwarf_Die dwarf_next_die;
2270 Dwarf_Die dwarf_child_die;
2272 if (elf_version(EV_CURRENT) == EV_NONE) {
2273 printf("findDwarfStaticAddresses: Bad elf version.\n");
2277 if ((fd=open("/unix", O_RDONLY,0))<0) {
2278 printf("findDwarfStaticAddresses: Failed to open /unix.\n");
2281 code = dwarf_init(fd, dwarf_access, NULL, NULL, &dwarf_debug,
2283 if (code != DW_DLV_OK) {
2284 /* Nope hope for the elves and dwarves, try intermediate code. */
2291 /* Run through the headers until we find ones for files we've
2292 * specified in nameList.
2294 code = dwarf_next_cu_header(dwarf_debug,
2295 &dwarf_cu_header_length, NULL,
2296 &dwarf_abbrev_offset,
2297 &dwarf_address_size,
2300 if (code == DW_DLV_NO_ENTRY) {
2303 else if (code == DW_DLV_ERROR) {
2304 printf("findDwarfStaticAddresses: Error reading headers: %s\n",
2305 dwarf_errmsg(dwarf_error));
2309 code = dwarf_siblingof(dwarf_debug, NULL, &dwarf_die, &dwarf_error);
2310 if (code != DW_DLV_OK) {
2311 printf("findDwarfStaticAddresses: Can't get first die. %s\n",
2312 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2316 /* This is the header, test the name. */
2317 code = dwarf_diename(dwarf_die, &hname, &dwarf_error);
2318 if (code == DW_DLV_OK) {
2319 s = strrchr(hname, '/');
2320 for (i=0; i<nLists; i++) {
2321 if (s && !strcmp(s+1, nameList[i].file)) {
2322 findElfAddresses(dwarf_debug, dwarf_die, &nameList[i]);
2329 printf("findDwarfStaticAddresses: Can't get name of current header. %s\n",
2330 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2333 dwarf_dealloc(dwarf_debug, hname, DW_DLA_STRING);
2335 if (found >= nLists) { /* we're done */
2340 /* Frees up all allocated space. */
2341 (void) dwarf_finish(dwarf_debug, &dwarf_error);
2346 findElfAddresses(Dwarf_Debug dwarf_debug, Dwarf_Die dwarf_die,
2347 staticNameList * nameList)
2350 Dwarf_Error dwarf_error;
2351 Dwarf_Die dwarf_next_die;
2352 Dwarf_Die dwarf_child_die;
2353 Dwarf_Attribute dwarf_return_attr;
2354 char *vname = (char*)0;
2358 /* Drop into this die to find names in addrList. */
2359 code = dwarf_child(dwarf_die, &dwarf_child_die, &dwarf_error);
2360 if (code != DW_DLV_OK) {
2361 printf("findElfAddresses: Can't get child die. %s\n",
2362 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2366 /* Try to find names in each sibling. */
2367 dwarf_next_die = (Dwarf_Die)0;
2369 code = dwarf_diename(dwarf_child_die, &vname,
2371 /* It's possible that some siblings don't have names. */
2372 if (code == DW_DLV_OK) {
2373 for (i=0; i<nameList->nAddrs; i++) {
2374 if (!nameList->addrList[i].found) {
2375 if (!strcmp(vname, nameList->addrList[i].name)) {
2376 getElfAddress(dwarf_debug, dwarf_child_die,
2377 &(nameList->addrList[i]));
2385 dwarf_dealloc(dwarf_debug, dwarf_next_die, DW_DLA_DIE);
2387 if (found >= nameList->nAddrs) { /* we're done. */
2391 dwarf_next_die = dwarf_child_die;
2392 code = dwarf_siblingof(dwarf_debug, dwarf_next_die,
2396 } while(code == DW_DLV_OK);
2399 /* Get address out of current die. */
2401 getElfAddress(Dwarf_Debug dwarf_debug,
2402 Dwarf_Die dwarf_child_die, staticAddrList *addrList)
2405 Dwarf_Error dwarf_error;
2406 Dwarf_Attribute dwarf_return_attr;
2407 Dwarf_Bool dwarf_return_bool;
2408 Dwarf_Locdesc *llbuf = NULL;
2409 Dwarf_Signed listlen;
2410 off64_t addr = (off64_t)0;
2413 code = dwarf_hasattr(dwarf_child_die, addrList->type,
2414 &dwarf_return_bool, &dwarf_error);
2415 if ((code != DW_DLV_OK) || (!dwarf_return_bool)) {
2416 printf("getElfAddress: no address given for %s. %s\n",
2417 addrList->name, (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2420 code = dwarf_attr(dwarf_child_die, addrList->type,
2421 &dwarf_return_attr, &dwarf_error);
2422 if (code != DW_DLV_OK) {
2423 printf("getElfAddress: Can't get attribute. %s\n",
2424 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2428 switch (addrList->type) {
2429 case DW_AT_location:
2430 code = dwarf_loclist(dwarf_return_attr, &llbuf,
2431 &listlen, &dwarf_error);
2432 if (code != DW_DLV_OK) {
2433 printf("getElfAddress: Can't get location for %s. %s\n",
2435 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2438 if ((listlen != 1) || (llbuf[0].ld_cents != 1)) {
2439 printf("getElfAddress: %s has more than one address.\n",
2443 addr = llbuf[0].ld_s[0].lr_number;
2447 code = dwarf_lowpc(dwarf_child_die, (Dwarf_Addr*)&addr, &dwarf_error);
2448 if ( code != DW_DLV_OK) {
2449 printf("getElfAddress: Can't get lowpc for %s. %s\n",
2451 (code == DW_DLV_ERROR) ? dwarf_errmsg(dwarf_error) : "");
2457 printf("getElfAddress: Bad case %d in switch.\n", addrList->type);
2461 addrList->addr.high = (addr>>32) & 0xffffffff;
2462 addrList->addr.low = addr & 0xffffffff;
2463 addrList->found = 1;
2466 #if defined(AFS_SGI62_ENV) && !defined(AFS_SGI65_ENV)
2467 /* Find symbols in the .mdebug section for 32 bit kernels. */
2470 * On 32bit platforms, we're still using the ucode compilers to build
2471 * the kernel, so we need to get our static text/data from the .mdebug
2472 * section instead of the .dwarf sections.
2474 /* SearchNameList searches our bizarre structs for the given string.
2475 * If found, sets the found bit and the address and returns 1.
2476 * Not found returns 0.
2478 int SearchNameList(char *name, afs_uint32 addr, staticNameList *nameList,
2482 for (i=0; i<nLists; i++) {
2483 for (j=0; j<nameList[i].nAddrs; j++) {
2484 if (nameList[i].addrList[j].found)
2486 if (!strcmp(name, nameList[i].addrList[j].name)) {
2487 nameList[i].addrList[j].addr.high = 0;
2488 nameList[i].addrList[j].addr.low = addr;
2489 nameList[i].addrList[j].found = 1;
2498 SearchMDebug(Elf_Scn *scnp, Elf32_Shdr *shdrp, staticNameList * nameList,
2499 int nLists, int needed)
2501 long *buf = (long *)(elf_getdata(scnp, NULL)->d_buf);
2502 u_long addr, mdoff = shdrp->sh_offset;
2504 SYMR *symbase, *symp, *symend;
2505 FDR *fdrbase, *fdrp;
2507 char *strbase, *str;
2512 addr = (__psunsigned_t)buf;
2513 hdrp = (HDRR *)addr;
2515 /* setup base addresses */
2516 addr = (u_long)buf + (u_long)(hdrp->cbFdOffset - mdoff);
2517 fdrbase = (FDR *)addr;
2518 addr = (u_long)buf + (u_long)(hdrp->cbSymOffset - mdoff);
2519 symbase = (SYMR *)addr;
2520 addr = (u_long)buf + (u_long)(hdrp->cbSsOffset - mdoff);
2521 strbase = (char *)addr;
2523 #define KEEPER(a,b) ((a == stStaticProc && b == scText) || \
2524 (a == stStatic && (b == scData || b == scBss || \
2525 b == scSBss || b == scSData)))
2527 for (fdrp = fdrbase; fdrp < &fdrbase[hdrp->ifdMax]; fdrp++) {
2528 str = strbase + fdrp->issBase + fdrp->rss;
2530 /* local symbols for each fd */
2531 for (symp = &symbase[fdrp->isymBase];
2532 symp < &symbase[fdrp->isymBase+fdrp->csym];
2534 if (KEEPER(symp->st, symp->sc)) {
2535 if (symp->value == 0)
2538 str = strbase + fdrp->issBase + symp->iss;
2539 /* Look for AFS symbols of interest */
2540 if (SearchNameList(str, symp->value,
2541 nameList, nLists)) {
2543 if (nFound >= needed)
2552 * returns section with the name of scn_name, & puts its header in shdr64 or
2553 * shdr32 based on elf's file type
2557 findMDebugSection(Elf *elf, char *scn_name)
2561 Elf_Scn *scn = NULL;
2565 if ((ehdr32 = elf32_getehdr(elf)) == NULL)
2568 if ((scn = elf_nextscn(elf, scn)) == NULL)
2570 if ((shdr32 = elf32_getshdr(scn)) == NULL)
2572 } while (strcmp(scn_name, elf_strptr(elf, ehdr32->e_shstrndx,
2579 void findMDebugStaticAddresses(staticNameList * nameList, int nLists,
2584 Elf_Scn *mdebug_scn;
2585 Elf32_Shdr *mdebug_shdr;
2588 if ((fd = open("/unix", O_RDONLY)) == -1) {
2589 printf("findMDebugStaticAddresses: Failed to open /unix.\n");
2593 (void)elf_version(EV_CURRENT);
2594 if((elf = elf_begin(fd, ELF_C_READ, NULL)) == NULL) {
2595 printf("findMDebugStaticAddresses: /unix doesn't seem to be an elf file\n");
2599 mdebug_scn = findMDebugSection(elf, ".mdebug");
2601 printf("findMDebugStaticAddresses: Can't find .mdebug section.\n");
2604 mdebug_shdr = elf32_getshdr(mdebug_scn);
2606 printf("findMDebugStaticAddresses: Can't find .mdebug header.\n");
2610 (void) SearchMDebug(mdebug_scn, mdebug_shdr, nameList, nLists, needed);
2616 #endif /* AFS_SGI62_ENV */
2618 #else /* AFS_SGI61_ENV */
2620 struct nlist nlunix[] = {
2621 { "rfsdisptab_v2" },
2625 get_nfsstaticaddr() {
2626 int i, j, kmem, count;
2628 if ((kmem = open("/dev/kmem", O_RDONLY)) < 0) {
2629 printf("Warning: can't open /dev/kmem\n");
2632 if ((j = nlist("/unix", nlunix)) < 0) {
2633 printf("Warning: can't nlist /unix\n");
2636 i = nlunix[0].n_value;
2637 if (lseek(kmem, i, L_SET/*0*/) != i) {
2638 printf("Warning: can't lseek to %x\n", i);
2641 if ((j = read(kmem, &count, sizeof count)) != sizeof count) {
2642 printf("WARNING: kmem read at %x failed\n", i);
2647 #endif /* AFS_SGI61_ENV */
2648 #endif /* AFS_SGI53_ENV */