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
10 #include <afsconfig.h>
11 #include <afs/param.h>
17 #include <afs/pthread_glock.h>
19 #include "afs/sysincludes.h"
20 #include "afsincludes.h"
22 #include <sys/types.h>
25 #include <sys/utime.h>
27 #include <WINNT/afssw.h>
29 #include <sys/socket.h>
30 #include <netinet/in.h>
35 #include <arpa/nameser.h>
36 #ifdef HAVE_ARPA_NAMESER_COMPAT_H
37 #include <arpa/nameser_compat.h>
40 #endif /* AFS_AFSDB_ENV */
41 #endif /* AFS_NT40_ENV */
42 #include <afs/afsint.h>
61 #include <afs/afsutil.h>
62 #include "cellconfig.h"
66 /* cm_dns.h depends on cellconfig.h */
68 #endif /* AFS_AFSDB_ENV */
70 static struct afsconf_servPair serviceTable[] = {
81 {"afsres", 7010,}, /* residency database for MR-AFS */
82 {"afsremio", 7011,}, /* remote I/O interface for MR-AFS */
83 {0, 0} /* insert new services before this spot */
87 static afs_int32 afsconf_FindService(register const char *aname);
88 static int TrimLine(char *abuffer);
90 static int IsClientConfigDirectory(const char *path);
91 static int GetCellNT(struct afsconf_dir *adir);
93 static int afsconf_Check(register struct afsconf_dir *adir);
94 static int afsconf_Touch(register struct afsconf_dir *adir);
95 static int GetCellUnix(struct afsconf_dir *adir);
96 static int afsconf_OpenInternal(register struct afsconf_dir *adir, char *cell,
98 static int ParseHostLine(char *aline, register struct sockaddr_in *addr,
99 char *aname, char *aclone);
100 static int ParseCellLine(register char *aline, register char *aname,
101 register char *alname);
102 static int afsconf_CloseInternal(register struct afsconf_dir *adir);
103 static int afsconf_Reopen(register struct afsconf_dir *adir);
104 static int SaveKeys(struct afsconf_dir *adir);
107 #define T_AFSDB 18 /* per RFC1183 section 1 */
111 * Basic Rule: we touch "<AFSCONF_DIR>/CellServDB" every time we change anything, so
112 * our code can tell if there is new info in the key files, the cell server db
113 * files or any of the other files (and reopen the thing) if the date on
114 * CellServDB changes.
117 #if defined(AFS_SUN5_ENV) && !defined(__sparcv9)
118 /* Solaris through 10 in 32 bit mode will return EMFILE if fopen can't
119 get an fd <= 255. We allow the fileserver to claim more fds than that.
120 This has always been a problem since pr_Initialize would have the same
121 issue, but hpr_Initialize makes it more likely that we would see this.
122 Work around it. This is not generic. It's coded with the needs of
123 afsconf_* in mind only.
125 http://www.opensolaris.org/os/community/onnv/flag-days/pages/2006042001/
130 struct afsconf_iobuffer {
137 typedef struct afsconf_iobuffer afsconf_FILE;
139 static afsconf_FILE *
140 afsconf_fopen(const char *fname, const char *fmode)
145 if ((fd = open(fname, O_RDONLY)) == -1) {
149 iop = malloc(sizeof(struct afsconf_iobuffer));
156 iop->buffer = malloc(BUFFER);
157 if (iop->buffer == NULL) {
163 iop->ptr = iop->buffer;
164 iop->endptr = iop->buffer;
169 afsconf_fclose(afsconf_FILE *iop)
175 free((void *)iop->buffer);
181 afsconf_fgets(char *s, int n, afsconf_FILE *iop)
189 if (iop->ptr == iop->endptr) {
192 if ((len = read(iop->_file, (void *)iop->buffer, BUFFER)) == -1) {
202 iop->ptr = iop->buffer;
203 iop->endptr = iop->buffer + len;
207 if ((p - s) == (n - 1)) {
217 #define fopen afsconf_fopen
218 #define fclose afsconf_fclose
219 #define fgets afsconf_fgets
221 #define afsconf_FILE FILE
222 #endif /* AFS_SUN5_ENV && ! __sparcv9 */
224 /* return port number in network byte order in the low 16 bits of a long; return -1 if not found */
226 afsconf_FindService(register const char *aname)
228 /* lookup a service name */
230 register struct afsconf_servPair *tsp;
232 #if defined(AFS_OSF_ENV)
233 ts = getservbyname(aname, "");
235 ts = getservbyname(aname, NULL);
238 /* we found it in /etc/services, so we use this value */
239 return ts->s_port; /* already in network byte order */
242 /* not found in /etc/services, see if it is one of ours */
243 for (tsp = serviceTable;; tsp++) {
244 if (tsp->name == NULL)
246 if (!strcmp(tsp->name, aname))
247 return htons(tsp->port);
252 TrimLine(char *abuffer)
265 strcpy(abuffer, tbuffer);
271 * IsClientConfigDirectory() -- determine if path matches well-known
272 * client configuration directory.
275 IsClientConfigDirectory(const char *path)
277 const char *cdir = AFSDIR_CLIENT_ETC_DIRPATH;
280 for (i = 0; cdir[i] != '\0' && path[i] != '\0'; i++) {
281 int cc = tolower(cdir[i]);
282 int pc = tolower(path[i]);
295 /* hit end of one or both; allow mismatch in existence of trailing slash */
296 if (cdir[i] != '\0') {
297 if ((cdir[i] != '\\' && cdir[i] != '/') || (cdir[i + 1] != '\0')) {
301 if (path[i] != '\0') {
302 if ((path[i] != '\\' && path[i] != '/') || (path[i + 1] != '\0')) {
308 #endif /* AFS_NT40_ENV */
312 afsconf_Check(register struct afsconf_dir *adir)
314 char tbuffer[256], *p;
316 register afs_int32 code;
319 /* NT client CellServDB has different file name than NT server or Unix */
320 if (IsClientConfigDirectory(adir->name)) {
321 if (!afssw_GetClientCellServDBDir(&p)) {
322 strcompose(tbuffer, sizeof(tbuffer), p, "/",
323 AFSDIR_CELLSERVDB_FILE_NTCLIENT, NULL);
327 strncpy(tbuffer, adir->name, sizeof(tbuffer));
328 len = (int)strlen(tbuffer);
329 if (tbuffer[len - 1] != '\\' && tbuffer[len - 1] != '/') {
330 strncat(tbuffer, "\\", sizeof(tbuffer));
332 strncat(tbuffer, AFSDIR_CELLSERVDB_FILE_NTCLIENT,
334 tbuffer[sizeof(tbuffer) - 1] = '\0';
337 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLSERVDB_FILE,
341 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLSERVDB_FILE, NULL);
342 #endif /* AFS_NT40_ENV */
344 code = stat(tbuffer, &tstat);
348 /* did file change? */
349 if (tstat.st_mtime == adir->timeRead) {
352 /* otherwise file has changed, so reopen it */
353 return afsconf_Reopen(adir);
356 /* set modtime on file */
358 afsconf_Touch(register struct afsconf_dir *adir)
360 char tbuffer[256], *p;
362 struct timeval tvp[2];
365 adir->timeRead = 0; /* just in case */
368 /* NT client CellServDB has different file name than NT server or Unix */
370 if (IsClientConfigDirectory(adir->name)) {
371 if (!afssw_GetClientCellServDBDir(&p)) {
372 strcompose(tbuffer, sizeof(tbuffer), p, "/",
373 AFSDIR_CELLSERVDB_FILE_NTCLIENT, NULL);
376 int len = (int)strlen(tbuffer);
377 if (tbuffer[len - 1] != '\\' && tbuffer[len - 1] != '/') {
378 strncat(tbuffer, "\\", sizeof(tbuffer));
380 strncat(tbuffer, AFSDIR_CELLSERVDB_FILE_NTCLIENT,
382 tbuffer[sizeof(tbuffer) - 1] = '\0';
385 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLSERVDB_FILE,
389 return _utime(tbuffer, NULL);
392 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLSERVDB_FILE, NULL);
393 gettimeofday(&tvp[0], NULL);
395 return utimes(tbuffer, tvp);
396 #endif /* AFS_NT40_ENV */
400 afsconf_Open(register const char *adir)
402 register struct afsconf_dir *tdir;
403 register afs_int32 code;
406 /* zero structure and fill in name; rest is done by internal routine */
407 tdir = (struct afsconf_dir *)malloc(sizeof(struct afsconf_dir));
408 memset(tdir, 0, sizeof(struct afsconf_dir));
409 tdir->name = (char *)malloc(strlen(adir) + 1);
410 strcpy(tdir->name, adir);
412 code = afsconf_OpenInternal(tdir, 0, 0);
414 char *afsconf_path, afs_confdir[128];
417 /* Check global place only when local Open failed for whatever reason */
418 if (!(afsconf_path = getenv("AFSCONF"))) {
419 /* The "AFSCONF" environment (or contents of "/.AFSCONF") will be typically set to something like "/afs/<cell>/common/etc" where, by convention, the default files for "ThisCell" and "CellServDB" will reside; note that a major drawback is that a given afs client on that cell may NOT contain the same contents... */
424 if (!(home_dir = getenv("HOME"))) {
425 /* Our last chance is the "/.AFSCONF" file */
426 fp = fopen("/.AFSCONF", "r");
430 return (struct afsconf_dir *)0;
432 fgets(afs_confdir, 128, fp);
437 sprintf(pathname, "%s/%s", home_dir, ".AFSCONF");
438 fp = fopen(pathname, "r");
440 /* Our last chance is the "/.AFSCONF" file */
441 fp = fopen("/.AFSCONF", "r");
445 return (struct afsconf_dir *)0;
448 fgets(afs_confdir, 128, fp);
451 len = strlen(afs_confdir);
455 return (struct afsconf_dir *)0;
457 if (afs_confdir[len - 1] == '\n') {
458 afs_confdir[len - 1] = 0;
460 afsconf_path = afs_confdir;
462 tdir->name = (char *)malloc(strlen(afsconf_path) + 1);
463 strcpy(tdir->name, afsconf_path);
464 code = afsconf_OpenInternal(tdir, 0, 0);
469 return (struct afsconf_dir *)0;
477 GetCellUnix(struct afsconf_dir *adir)
484 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_THISCELL_FILE, NULL);
485 fp = fopen(tbuffer, "r");
489 rc = fgets(tbuffer, 256, fp);
492 p = strchr(tbuffer, '\n');
496 adir->cellName = strdup(tbuffer);
503 GetCellNT(struct afsconf_dir *adir)
505 if (IsClientConfigDirectory(adir->name)) {
506 /* NT client config dir; ThisCell is in registry (no file). */
507 return afssw_GetClientCellName(&adir->cellName);
509 /* NT server config dir; works just like Unix */
510 return GetCellUnix(adir);
513 #endif /* AFS_NT40_ENV */
517 afsconf_OpenInternal(register struct afsconf_dir *adir, char *cell,
521 register char *tp, *bp;
522 register struct afsconf_entry *curEntry;
523 struct afsconf_aliasentry *curAlias;
524 register afs_int32 code;
526 char tbuffer[256], tbuf1[256];
529 /* figure out the cell name */
533 i = GetCellUnix(adir);
536 #ifndef AFS_FREELANCE_CLIENT /* no local cell not fatal in freelance */
542 /* now parse the individual lines */
546 /* NT client/server have a CellServDB that is the same format as Unix.
547 * However, the NT client uses a different file name
549 if (IsClientConfigDirectory(adir->name)) {
550 /* NT client config dir */
552 if (!afssw_GetClientCellServDBDir(&p)) {
553 strcompose(tbuffer, sizeof(tbuffer), p, "/",
554 AFSDIR_CELLSERVDB_FILE_NTCLIENT, NULL);
558 strncpy(tbuffer, adir->name, sizeof(tbuffer));
559 len = (int)strlen(tbuffer);
560 if (tbuffer[len - 1] != '\\' && tbuffer[len - 1] != '/') {
561 strncat(tbuffer, "\\", sizeof(tbuffer));
563 strncat(tbuffer, AFSDIR_CELLSERVDB_FILE_NTCLIENT,
565 tbuffer[sizeof(tbuffer) - 1] = '\0';
568 /* NT server config dir */
569 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLSERVDB_FILE,
573 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLSERVDB_FILE, NULL);
574 #endif /* AFS_NT40_ENV */
576 if (!stat(tbuffer, &tstat)) {
577 adir->timeRead = tstat.st_mtime;
582 strcpy(tbuf1, tbuffer);
583 tf = fopen(tbuffer, "r");
588 tp = fgets(tbuffer, sizeof(tbuffer), tf);
591 TrimLine(tbuffer); /* remove white space */
592 if (tbuffer[0] == 0 || tbuffer[0] == '\n')
593 continue; /* empty line */
594 if (tbuffer[0] == '>') {
595 char linkedcell[MAXCELLCHARS];
596 /* start new cell item */
598 /* thread this guy on the list */
599 curEntry->next = adir->entries;
600 adir->entries = curEntry;
604 (struct afsconf_entry *)malloc(sizeof(struct afsconf_entry));
605 memset(curEntry, 0, sizeof(struct afsconf_entry));
607 ParseCellLine(tbuffer, curEntry->cellInfo.name, linkedcell);
609 afsconf_CloseInternal(adir);
614 if (linkedcell[0] != '\0') {
615 curEntry->cellInfo.linkedCell =
616 (char *)malloc(strlen(linkedcell) + 1);
617 strcpy(curEntry->cellInfo.linkedCell, linkedcell);
620 /* new host in the current cell */
622 afsconf_CloseInternal(adir);
626 i = curEntry->cellInfo.numServers;
627 if (cell && !strcmp(cell, curEntry->cellInfo.name))
629 ParseHostLine(tbuffer, &curEntry->cellInfo.hostAddr[i],
630 curEntry->cellInfo.hostName[i], &clones[i]);
633 ParseHostLine(tbuffer, &curEntry->cellInfo.hostAddr[i],
634 curEntry->cellInfo.hostName[i], 0);
636 if (code == AFSCONF_SYNTAX) {
637 for (bp = tbuffer; *bp != '\n'; bp++) { /* Take out the <cr> from the buffer */
643 "Can't properly parse host line \"%s\" in configuration file %s\n",
648 afsconf_CloseInternal(adir);
651 curEntry->cellInfo.numServers = ++i;
654 fclose(tf); /* close the file now */
656 /* end the last partially-completed cell */
658 curEntry->next = adir->entries;
659 adir->entries = curEntry;
662 /* Read in the alias list */
663 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_CELLALIAS_FILE, NULL);
665 tf = fopen(tbuffer, "r");
669 tp = fgets(tbuffer, sizeof(tbuffer), tf);
672 TrimLine(tbuffer); /* remove white space */
674 if (tbuffer[0] == '\0' || tbuffer[0] == '\n' || tbuffer[0] == '#')
675 continue; /* empty line */
678 while (tp[0] != '\0' && tp[0] != ' ' && tp[0] != '\t')
681 continue; /* invalid line */
683 while (tp[0] != '\0' && (tp[0] == ' ' || tp[0] == '\t'))
686 continue; /* invalid line */
689 while (tp[0] != '\0' && tp[0] != ' ' && tp[0] != '\t' && tp[0] != '\r'
694 curAlias = malloc(sizeof(*curAlias));
695 memset(curAlias, 0, sizeof(*curAlias));
697 strcpy(curAlias->aliasInfo.aliasName, aliasPtr);
698 strcpy(curAlias->aliasInfo.realName, tbuffer);
700 curAlias->next = adir->alias_entries;
701 adir->alias_entries = curAlias;
706 /* now read the fs keys, if possible */
707 adir->keystr = (struct afsconf_keys *)0;
708 afsconf_IntGetKeys(adir);
713 /* parse a line of the form
714 *"128.2.1.3 #hostname" or
715 *"[128.2.1.3] #hostname" for clones
716 * into the appropriate pieces.
719 ParseHostLine(char *aline, register struct sockaddr_in *addr, char *aname,
723 register afs_int32 code;
729 /* FIXME: length of aname unknown here */
730 code = sscanf(aline, "[%d.%d.%d.%d] #%s", &c1, &c2, &c3, &c4, aname);
734 /* FIXME: length of aname unknown here */
735 code = sscanf(aline, "%d.%d.%d.%d #%s", &c1, &c2, &c3, &c4, aname);
738 return AFSCONF_SYNTAX;
739 addr->sin_family = AF_INET;
741 #ifdef STRUCT_SOCKADDR_HAS_SA_LEN
742 addr->sin_len = sizeof(struct sockaddr_in);
744 tp = (char *)&addr->sin_addr;
752 /* parse a line of the form
753 * ">cellname [linkedcellname] [#comments]"
754 * into the appropriate pieces.
757 ParseCellLine(register char *aline, register char *aname,
758 register char *alname)
761 /* FIXME: length of aname, alname unknown here */
762 code = sscanf(aline, ">%s %s", aname, alname);
766 if (*alname == '#') {
770 return (code > 0 ? 0 : AFSCONF_SYNTAX);
773 /* call aproc(entry, arock, adir) for all cells. Proc must return 0, or we'll stop early and return the code it returns */
775 afsconf_CellApply(struct afsconf_dir *adir,
776 int (*aproc) (struct afsconf_cell * cell, char *arock,
777 struct afsconf_dir * dir), char *arock)
779 register struct afsconf_entry *tde;
780 register afs_int32 code;
782 for (tde = adir->entries; tde; tde = tde->next) {
783 code = (*aproc) (&tde->cellInfo, arock, adir);
793 /* call aproc(entry, arock, adir) for all cell aliases.
794 * Proc must return 0, or we'll stop early and return the code it returns
797 afsconf_CellAliasApply(struct afsconf_dir *adir,
798 int (*aproc) (struct afsconf_cellalias * alias,
799 char *arock, struct afsconf_dir * dir),
802 register struct afsconf_aliasentry *tde;
803 register afs_int32 code;
805 for (tde = adir->alias_entries; tde; tde = tde->next) {
806 code = (*aproc) (&tde->aliasInfo, arock, adir);
816 afs_int32 afsconf_SawCell = 0;
819 afsconf_GetExtendedCellInfo(struct afsconf_dir *adir, char *acellName,
820 char *aservice, struct afsconf_cell *acellInfo,
826 code = afsconf_GetCellInfo(adir, acellName, aservice, acellInfo);
833 cell = (char *)&acellInfo->name;
835 code = afsconf_OpenInternal(adir, cell, clones);
840 #if !defined(AFS_NT40_ENV)
842 afsconf_GetAfsdbInfo(char *acellName, char *aservice,
843 struct afsconf_cell *acellInfo)
846 int tservice, i, len;
847 unsigned char answer[1024];
851 char realCellName[256];
856 /* The resolver isn't always MT-safe.. Perhaps this ought to be
857 * replaced with a more fine-grained lock just for the resolver
861 if ( ! strchr(acellName,'.') ) {
862 cellnamelength=strlen(acellName);
863 dotcellname=malloc(cellnamelength+2);
864 memcpy(dotcellname,acellName,cellnamelength);
865 dotcellname[cellnamelength]='.';
866 dotcellname[cellnamelength+1]=0;
868 len = res_search(dotcellname, C_IN, T_AFSDB, answer, sizeof(answer));
870 len = res_search(acellName, C_IN, T_AFSDB, answer, sizeof(answer));
876 len = res_search(acellName, C_IN, T_AFSDB, answer, sizeof(answer));
880 return AFSCONF_NOTFOUND;
882 p = answer + sizeof(HEADER); /* Skip header */
883 code = dn_expand(answer, answer + len, p, host, sizeof(host));
885 return AFSCONF_NOTFOUND;
887 p += code + QFIXEDSZ; /* Skip name */
889 while (p < answer + len) {
892 code = dn_expand(answer, answer + len, p, host, sizeof(host));
894 return AFSCONF_NOTFOUND;
896 p += code; /* Skip the name */
897 type = (p[0] << 8) | p[1];
898 p += 4; /* Skip type and class */
899 ttl = (p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3];
900 p += 4; /* Skip the TTL */
901 size = (p[0] << 8) | p[1];
902 p += 2; /* Skip the size */
904 if (type == T_AFSDB) {
908 afsdb_type = (p[0] << 8) | p[1];
909 if (afsdb_type == 1) {
911 * We know this is an AFSDB record for our cell, of the
912 * right AFSDB type. Write down the true cell name that
913 * the resolver gave us above.
915 strcpy(realCellName, host);
918 code = dn_expand(answer, answer + len, p + 2, host, sizeof(host));
920 return AFSCONF_NOTFOUND;
922 if ((afsdb_type == 1) && (server_num < MAXHOSTSPERCELL) &&
923 /* Do we want to get TTL data for the A record as well? */
924 (he = gethostbyname(host))) {
926 memcpy(&ipaddr, he->h_addr, he->h_length);
927 acellInfo->hostAddr[server_num].sin_addr.s_addr = ipaddr;
928 strncpy(acellInfo->hostName[server_num], host,
929 sizeof(acellInfo->hostName[server_num]));
932 if (!minttl || ttl < minttl)
940 if (server_num == 0) /* No AFSDB records */
941 return AFSCONF_NOTFOUND;
943 /* Convert the real cell name to lowercase */
944 for (p = (unsigned char *)realCellName; *p; p++)
947 strncpy(acellInfo->name, realCellName, sizeof(acellInfo->name));
948 acellInfo->numServers = server_num;
951 tservice = afsconf_FindService(aservice);
953 return AFSCONF_NOTFOUND; /* service not found */
954 for (i = 0; i < acellInfo->numServers; i++) {
955 acellInfo->hostAddr[i].sin_port = tservice;
959 acellInfo->timeout = minttl ? (time(0) + minttl) : 0;
965 afsconf_GetAfsdbInfo(char *acellName, char *aservice,
966 struct afsconf_cell *acellInfo)
968 register afs_int32 i;
970 struct afsconf_entry DNSce;
971 afs_int32 cellHostAddrs[AFSMAXCELLHOSTS];
972 char cellHostNames[AFSMAXCELLHOSTS][MAXHOSTCHARS];
977 DNSce.cellInfo.numServers = 0;
979 rc = getAFSServer(acellName, cellHostAddrs, cellHostNames, &numServers,
981 /* ignore the ttl here since this code is only called by transitory programs
988 for (i = 0; i < numServers; i++) {
989 memcpy(&acellInfo->hostAddr[i].sin_addr.s_addr, &cellHostAddrs[i],
991 memcpy(acellInfo->hostName[i], cellHostNames[i], MAXHOSTCHARS);
992 acellInfo->hostAddr[i].sin_family = AF_INET;
994 /* sin_port supplied by connection code */
997 acellInfo->numServers = numServers;
998 strcpy(acellInfo->name, acellName);
1001 tservice = afsconf_FindService(aservice);
1002 UNLOCK_GLOBAL_MUTEX;
1004 return AFSCONF_NOTFOUND; /* service not found */
1006 for (i = 0; i < acellInfo->numServers; i++) {
1007 acellInfo->hostAddr[i].sin_port = tservice;
1010 acellInfo->linkedCell = NULL; /* no linked cell */
1011 acellInfo->flags = 0;
1014 #endif /* windows */
1015 #endif /* AFS_AFSDB_ENV */
1018 afsconf_GetCellInfo(struct afsconf_dir *adir, char *acellName, char *aservice,
1019 struct afsconf_cell *acellInfo)
1021 register struct afsconf_entry *tce;
1022 struct afsconf_aliasentry *tcae;
1023 struct afsconf_entry *bestce;
1024 register afs_int32 i;
1033 afsconf_Check(adir);
1036 cnLen = (int)(strlen(tcell) + 1);
1037 lcstring(tcell, tcell, cnLen);
1038 afsconf_SawCell = 1; /* will ignore the AFSCELL switch on future */
1039 /* call to afsconf_GetLocalCell: like klog */
1041 i = afsconf_GetLocalCell(adir, tbuffer, sizeof(tbuffer));
1043 UNLOCK_GLOBAL_MUTEX;
1048 cnLen = strlen(tcell);
1049 bestce = (struct afsconf_entry *)0;
1052 UNLOCK_GLOBAL_MUTEX;
1056 /* Look through the list of aliases */
1057 for (tcae = adir->alias_entries; tcae; tcae = tcae->next) {
1058 if (strcasecmp(tcae->aliasInfo.aliasName, tcell) == 0) {
1059 tcell = tcae->aliasInfo.realName;
1064 for (tce = adir->entries; tce; tce = tce->next) {
1065 if (strcasecmp(tce->cellInfo.name, tcell) == 0) {
1066 /* found our cell */
1071 if (strlen(tce->cellInfo.name) < cnLen)
1072 continue; /* clearly wrong */
1073 if (strncasecmp(tce->cellInfo.name, tcell, cnLen) == 0) {
1075 ambig = 1; /* ambiguous unless we get exact match */
1079 if (!ambig && bestce && bestce->cellInfo.numServers) {
1080 *acellInfo = bestce->cellInfo; /* structure assignment */
1082 tservice = afsconf_FindService(aservice);
1084 UNLOCK_GLOBAL_MUTEX;
1085 return AFSCONF_NOTFOUND; /* service not found */
1087 for (i = 0; i < acellInfo->numServers; i++) {
1088 acellInfo->hostAddr[i].sin_port = tservice;
1091 acellInfo->timeout = 0;
1092 UNLOCK_GLOBAL_MUTEX;
1095 UNLOCK_GLOBAL_MUTEX;
1096 #ifdef AFS_AFSDB_ENV
1097 return afsconf_GetAfsdbInfo(tcell, aservice, acellInfo);
1099 return AFSCONF_NOTFOUND;
1100 #endif /* AFS_AFSDB_ENV */
1105 afsconf_GetLocalCell(register struct afsconf_dir *adir, char *aname,
1108 static int afsconf_showcell = 0;
1114 * If a cell switch was specified in a command, then it should override the
1115 * AFSCELL variable. If a cell was specified, then the afsconf_SawCell flag
1116 * is set and the cell name in the adir structure is used.
1117 * Read the AFSCELL var each time: in case it changes (unsetenv AFSCELL).
1119 if (!afsconf_SawCell && (afscell_path = getenv("AFSCELL"))) {
1120 if (!afsconf_showcell) {
1121 fprintf(stderr, "Note: Operation is performed on cell %s\n",
1123 afsconf_showcell = 1;
1125 strncpy(aname, afscell_path, alen);
1127 afsconf_Check(adir);
1128 if (adir->cellName) {
1129 strncpy(aname, adir->cellName, alen);
1131 code = AFSCONF_UNKNOWN;
1134 UNLOCK_GLOBAL_MUTEX;
1139 afsconf_Close(struct afsconf_dir *adir)
1142 afsconf_CloseInternal(adir);
1146 UNLOCK_GLOBAL_MUTEX;
1151 afsconf_CloseInternal(register struct afsconf_dir *adir)
1153 register struct afsconf_entry *td, *nd;
1154 struct afsconf_aliasentry *ta, *na;
1155 register char *tname;
1157 tname = adir->name; /* remember name, since that's all we preserve */
1159 /* free everything we can find */
1161 free(adir->cellName);
1162 for (td = adir->entries; td; td = nd) {
1164 if (td->cellInfo.linkedCell)
1165 free(td->cellInfo.linkedCell);
1168 for (ta = adir->alias_entries; ta; ta = na) {
1176 memset(adir, 0, sizeof(struct afsconf_dir));
1177 adir->name = tname; /* restore it */
1182 afsconf_Reopen(register struct afsconf_dir *adir)
1184 register afs_int32 code;
1185 code = afsconf_CloseInternal(adir);
1188 code = afsconf_OpenInternal(adir, 0, 0);
1192 /* called during opening of config file */
1194 afsconf_IntGetKeys(struct afsconf_dir *adir)
1198 struct afsconf_keys *tstr;
1199 register afs_int32 code;
1202 /* NT client config dir has no KeyFile; don't risk attempting open
1203 * because there might be a random file of this name if dir is shared.
1205 if (IsClientConfigDirectory(adir->name)) {
1206 adir->keystr = ((struct afsconf_keys *)
1207 malloc(sizeof(struct afsconf_keys)));
1208 adir->keystr->nkeys = 0;
1211 #endif /* AFS_NT40_ENV */
1214 /* compute the key name and other setup */
1215 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_KEY_FILE, NULL);
1216 tstr = (struct afsconf_keys *)malloc(sizeof(struct afsconf_keys));
1217 adir->keystr = tstr;
1220 fd = open(tbuffer, O_RDONLY);
1223 UNLOCK_GLOBAL_MUTEX;
1226 code = read(fd, tstr, sizeof(struct afsconf_keys));
1228 if (code < sizeof(afs_int32)) {
1230 UNLOCK_GLOBAL_MUTEX;
1234 /* convert key structure to host order */
1235 tstr->nkeys = ntohl(tstr->nkeys);
1237 if (code < sizeof(afs_int32) + (tstr->nkeys*sizeof(struct afsconf_key))) {
1239 UNLOCK_GLOBAL_MUTEX;
1243 for (fd = 0; fd < tstr->nkeys; fd++)
1244 tstr->key[fd].kvno = ntohl(tstr->key[fd].kvno);
1246 UNLOCK_GLOBAL_MUTEX;
1250 /* get keys structure */
1252 afsconf_GetKeys(struct afsconf_dir *adir, struct afsconf_keys *astr)
1254 register afs_int32 code;
1257 code = afsconf_Check(adir);
1259 UNLOCK_GLOBAL_MUTEX;
1260 return AFSCONF_FAILURE;
1262 memcpy(astr, adir->keystr, sizeof(struct afsconf_keys));
1263 UNLOCK_GLOBAL_MUTEX;
1267 /* get latest key */
1269 afsconf_GetLatestKey(struct afsconf_dir * adir, afs_int32 * avno, char *akey)
1273 register struct afsconf_key *tk;
1274 register afs_int32 best;
1275 struct afsconf_key *bestk;
1276 register afs_int32 code;
1279 code = afsconf_Check(adir);
1281 UNLOCK_GLOBAL_MUTEX;
1282 return AFSCONF_FAILURE;
1284 maxa = adir->keystr->nkeys;
1286 best = -1; /* highest kvno we've seen yet */
1287 bestk = (struct afsconf_key *)0; /* ptr to structure providing best */
1288 for (tk = adir->keystr->key, i = 0; i < maxa; i++, tk++) {
1289 if (tk->kvno == 999)
1290 continue; /* skip bcrypt keys */
1291 if (tk->kvno > best) {
1296 if (bestk) { /* found any */
1298 memcpy(akey, bestk->key, 8); /* copy out latest key */
1300 *avno = bestk->kvno; /* and kvno to caller */
1301 UNLOCK_GLOBAL_MUTEX;
1304 UNLOCK_GLOBAL_MUTEX;
1305 return AFSCONF_NOTFOUND; /* didn't find any keys */
1308 /* get a particular key */
1310 afsconf_GetKey(struct afsconf_dir *adir, afs_int32 avno, char *akey)
1312 register int i, maxa;
1313 register struct afsconf_key *tk;
1314 register afs_int32 code;
1317 code = afsconf_Check(adir);
1319 UNLOCK_GLOBAL_MUTEX;
1320 return AFSCONF_FAILURE;
1322 maxa = adir->keystr->nkeys;
1324 for (tk = adir->keystr->key, i = 0; i < maxa; i++, tk++) {
1325 if (tk->kvno == avno) {
1326 memcpy(akey, tk->key, 8);
1327 UNLOCK_GLOBAL_MUTEX;
1332 UNLOCK_GLOBAL_MUTEX;
1333 return AFSCONF_NOTFOUND;
1336 /* save the key structure in the appropriate file */
1338 SaveKeys(struct afsconf_dir *adir)
1340 struct afsconf_keys tkeys;
1342 register afs_int32 i;
1345 memcpy(&tkeys, adir->keystr, sizeof(struct afsconf_keys));
1347 /* convert it to net byte order */
1348 for (i = 0; i < tkeys.nkeys; i++)
1349 tkeys.key[i].kvno = htonl(tkeys.key[i].kvno);
1350 tkeys.nkeys = htonl(tkeys.nkeys);
1352 /* rewrite keys file */
1353 strcompose(tbuffer, 256, adir->name, "/", AFSDIR_KEY_FILE, NULL);
1354 fd = open(tbuffer, O_RDWR | O_CREAT | O_TRUNC, 0600);
1356 return AFSCONF_FAILURE;
1357 i = write(fd, &tkeys, sizeof(tkeys));
1358 if (i != sizeof(tkeys)) {
1360 return AFSCONF_FAILURE;
1363 return AFSCONF_FAILURE;
1368 afsconf_AddKey(struct afsconf_dir *adir, afs_int32 akvno, char akey[8],
1369 afs_int32 overwrite)
1371 register struct afsconf_keys *tk;
1372 register struct afsconf_key *tkey;
1373 register afs_int32 i;
1380 if (akvno < 0 || akvno > 255) {
1381 UNLOCK_GLOBAL_MUTEX;
1386 for (i = 0, tkey = tk->key; i < tk->nkeys; i++, tkey++) {
1387 if (tkey->kvno == akvno) {
1389 UNLOCK_GLOBAL_MUTEX;
1390 return AFSCONF_KEYINUSE;
1397 if (tk->nkeys >= AFSCONF_MAXKEYS) {
1398 UNLOCK_GLOBAL_MUTEX;
1399 return AFSCONF_FULL;
1401 tkey = &tk->key[tk->nkeys++];
1404 memcpy(tkey->key, akey, 8);
1406 afsconf_Touch(adir);
1407 UNLOCK_GLOBAL_MUTEX;
1411 /* this proc works by sliding the other guys down, rather than using a funny
1412 kvno value, so that callers can count on getting a good key in key[0].
1415 afsconf_DeleteKey(struct afsconf_dir *adir, afs_int32 akvno)
1417 register struct afsconf_keys *tk;
1418 register struct afsconf_key *tkey;
1425 for (i = 0, tkey = tk->key; i < tk->nkeys; i++, tkey++) {
1426 if (tkey->kvno == akvno) {
1432 UNLOCK_GLOBAL_MUTEX;
1433 return AFSCONF_NOTFOUND;
1436 /* otherwise slide the others down. i and tkey point at the guy to delete */
1437 for (; i < tk->nkeys - 1; i++, tkey++) {
1438 tkey->kvno = (tkey + 1)->kvno;
1439 memcpy(tkey->key, (tkey + 1)->key, 8);
1443 afsconf_Touch(adir);
1444 UNLOCK_GLOBAL_MUTEX;