17c478bd9Sstevel@tonic-gate /*
27c478bd9Sstevel@tonic-gate * CDDL HEADER START
37c478bd9Sstevel@tonic-gate *
47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the
54a190493Ssdussud * Common Development and Distribution License (the "License").
64a190493Ssdussud * You may not use this file except in compliance with the License.
77c478bd9Sstevel@tonic-gate *
87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
117c478bd9Sstevel@tonic-gate * and limitations under the License.
127c478bd9Sstevel@tonic-gate *
137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
187c478bd9Sstevel@tonic-gate *
197c478bd9Sstevel@tonic-gate * CDDL HEADER END
207c478bd9Sstevel@tonic-gate */
217c478bd9Sstevel@tonic-gate /*
22*a87701e9SGary Mills * Copyright 2015 Gary Mills
23b892d001Svt * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
247c478bd9Sstevel@tonic-gate * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
287c478bd9Sstevel@tonic-gate /* All Rights Reserved */
297c478bd9Sstevel@tonic-gate
307c478bd9Sstevel@tonic-gate /*
317c478bd9Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 4.3 BSD
327c478bd9Sstevel@tonic-gate * under license from the Regents of the University of California.
337c478bd9Sstevel@tonic-gate */
347c478bd9Sstevel@tonic-gate
354a190493Ssdussud #include <stdlib.h>
367c478bd9Sstevel@tonic-gate #include <dirent.h>
377c478bd9Sstevel@tonic-gate #include <strings.h>
387c478bd9Sstevel@tonic-gate #include "ypsym.h"
397c478bd9Sstevel@tonic-gate #include "ypdefs.h"
407c478bd9Sstevel@tonic-gate USE_YPDBPATH
417c478bd9Sstevel@tonic-gate USE_DBM
427c478bd9Sstevel@tonic-gate #include "shim.h"
434a190493Ssdussud #include "../ldap_util.h"
447c478bd9Sstevel@tonic-gate
457c478bd9Sstevel@tonic-gate /*
467c478bd9Sstevel@tonic-gate * This constructs a file name from a passed domain name, a passed map name,
477c478bd9Sstevel@tonic-gate * and a globally known YP data base path prefix.
487c478bd9Sstevel@tonic-gate *
497c478bd9Sstevel@tonic-gate * Has to be in shim because it needs the N2L prefix
507c478bd9Sstevel@tonic-gate *
517c478bd9Sstevel@tonic-gate * RETURNS : TRUE = A name was successfully created
527c478bd9Sstevel@tonic-gate * FALSE = A name could not be created
537c478bd9Sstevel@tonic-gate */
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate bool_t
ypmkfilename(domain,map,path)567c478bd9Sstevel@tonic-gate ypmkfilename(domain, map, path)
577c478bd9Sstevel@tonic-gate char *domain;
587c478bd9Sstevel@tonic-gate char *map;
597c478bd9Sstevel@tonic-gate char *path;
607c478bd9Sstevel@tonic-gate {
617c478bd9Sstevel@tonic-gate int length;
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate /* Do not allow any path as a domain name. */
647c478bd9Sstevel@tonic-gate if (strchr(domain, '/') != NULL)
657c478bd9Sstevel@tonic-gate return (FALSE);
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate length = strlen(domain) + strlen(map) + ypdbpath_sz + 3;
687c478bd9Sstevel@tonic-gate if (yptol_mode)
697c478bd9Sstevel@tonic-gate length += strlen(NTOL_PREFIX) + 1;
707c478bd9Sstevel@tonic-gate
717c478bd9Sstevel@tonic-gate if ((MAXNAMLEN + 1) < length) {
724a190493Ssdussud (void) fprintf(stderr, "ypserv: Map name string too long.\n");
737c478bd9Sstevel@tonic-gate return (FALSE);
747c478bd9Sstevel@tonic-gate }
757c478bd9Sstevel@tonic-gate
767c478bd9Sstevel@tonic-gate strcpy(path, ypdbpath);
777c478bd9Sstevel@tonic-gate strcat(path, "/");
787c478bd9Sstevel@tonic-gate strcat(path, domain);
797c478bd9Sstevel@tonic-gate strcat(path, "/");
807c478bd9Sstevel@tonic-gate
817c478bd9Sstevel@tonic-gate /* If in N2L mode add N2L prefix */
827c478bd9Sstevel@tonic-gate if (yptol_mode)
837c478bd9Sstevel@tonic-gate strcat(path, NTOL_PREFIX);
847c478bd9Sstevel@tonic-gate strcat(path, map);
857c478bd9Sstevel@tonic-gate
867c478bd9Sstevel@tonic-gate return (TRUE);
877c478bd9Sstevel@tonic-gate }
884a190493Ssdussud
894a190493Ssdussud /*
904a190493Ssdussud * check whether a map is already in an array/list
914a190493Ssdussud *
924a190493Ssdussud * RETURNS: TRUE if yes
934a190493Ssdussud * FALSE if not
944a190493Ssdussud */
954a190493Ssdussud bool_t
on_maplist(char * mapname,char ** list)964a190493Ssdussud on_maplist(char *mapname, char **list) {
974a190493Ssdussud int i = 0;
984a190493Ssdussud
994a190493Ssdussud if (list == NULL) {
1004a190493Ssdussud return (FALSE);
1014a190493Ssdussud }
1024a190493Ssdussud
1034a190493Ssdussud while (list[i] != NULL) {
1044a190493Ssdussud if (strcmp(mapname, list[i++]) == 0) {
1054a190493Ssdussud return (TRUE);
1064a190493Ssdussud }
1074a190493Ssdussud }
1084a190493Ssdussud
1094a190493Ssdussud return (FALSE);
1104a190493Ssdussud }
1114a190493Ssdussud
1124a190493Ssdussud /*
1134a190493Ssdussud * add a map at the end of an array/list
1144a190493Ssdussud *
1154a190493Ssdussud * list_len: if -1, we do not know list length
1164a190493Ssdussud *
1174a190493Ssdussud * RETURNS: TRUE if map was added
1184a190493Ssdussud * FALSE if not
1194a190493Ssdussud */
1204a190493Ssdussud bool_t
add_in_maplist(char * mapname,char *** list,int * list_len)1214a190493Ssdussud add_in_maplist(char *mapname, char ***list, int *list_len) {
1224a190493Ssdussud int i = 0;
1234a190493Ssdussud char **list_tmp;
1244a190493Ssdussud
1254a190493Ssdussud if (list == NULL) {
1264a190493Ssdussud return (FALSE);
1274a190493Ssdussud }
1284a190493Ssdussud
1294a190493Ssdussud list_tmp = *list;
1304a190493Ssdussud
1314a190493Ssdussud if (list_tmp == NULL) {
1324a190493Ssdussud *list_len = 0;
1334a190493Ssdussud } else {
1344a190493Ssdussud /* find 1st free element */
1354a190493Ssdussud while (list_tmp[i] != NULL) {
1364a190493Ssdussud /*
1374a190493Ssdussud * increment in loop so that
1384a190493Ssdussud * list_tmp[i] == NULL
1394a190493Ssdussud * when exiting
1404a190493Ssdussud */
1414a190493Ssdussud i++;
1424a190493Ssdussud }
1434a190493Ssdussud }
1444a190493Ssdussud
1454a190493Ssdussud /* if we don't know list length, assume we reach its end */
1464a190493Ssdussud if (*list_len == -1) {
1474a190493Ssdussud *list_len = i;
1484a190493Ssdussud }
1494a190493Ssdussud
1504a190493Ssdussud /* do we need to reallocate ? */
1514a190493Ssdussud if (i+1 >= *list_len) {
1524a190493Ssdussud list_tmp = (char **)realloc(list_tmp,
1534a190493Ssdussud (*list_len + ARRAY_CHUNK) *
1544a190493Ssdussud sizeof (char *));
1554a190493Ssdussud if (list_tmp == NULL) {
1564a190493Ssdussud return (FALSE);
1574a190493Ssdussud }
1584a190493Ssdussud *list = list_tmp;
1594a190493Ssdussud *list_len += ARRAY_CHUNK;
1604a190493Ssdussud }
1614a190493Ssdussud
1624a190493Ssdussud /* add in list */
1634a190493Ssdussud (*list)[i] = strdup(mapname);
1644a190493Ssdussud if ((*list)[i] == NULL) {
1654a190493Ssdussud /* strdup() failed */
1664a190493Ssdussud return (FALSE);
1674a190493Ssdussud }
1684a190493Ssdussud (*list)[++i] = NULL;
1694a190493Ssdussud
1704a190493Ssdussud return (TRUE);
1714a190493Ssdussud }
1724a190493Ssdussud
1734a190493Ssdussud /*
1744a190493Ssdussud * This checks to see whether a domain name is present at the local node as a
1754a190493Ssdussud * subdirectory of ypdbpath
1764a190493Ssdussud *
1774a190493Ssdussud * Was originally in cmd/ypcmd/shared/ancil.c as ypcheck_domain(domain).
1784a190493Ssdussud * Now ypcheck_domain(domain) calls this function.
1794a190493Ssdussud */
1804a190493Ssdussud bool
ypcheck_domain_yptol(char * domain)1814a190493Ssdussud ypcheck_domain_yptol(char *domain)
1824a190493Ssdussud {
1834a190493Ssdussud char path[MAXNAMLEN + 1];
1844a190493Ssdussud struct stat filestat;
1854a190493Ssdussud bool present = FALSE;
1864a190493Ssdussud
1874a190493Ssdussud strcpy(path, ypdbpath);
1884a190493Ssdussud strcat(path, "/");
1894a190493Ssdussud if (strlcat(path, domain, MAXNAMLEN + 1) >= MAXNAMLEN + 1)
1904a190493Ssdussud return (present);
1914a190493Ssdussud
1924a190493Ssdussud if (stat(path, &filestat) != -1) {
1934a190493Ssdussud if (S_ISDIR(filestat.st_mode))
1944a190493Ssdussud present = TRUE;
1954a190493Ssdussud }
1964a190493Ssdussud return (present);
1974a190493Ssdussud }
1984a190493Ssdussud
1994a190493Ssdussud /*
2004a190493Ssdussud * This performs an existence check on the dbm data base files <name>.pag and
2014a190493Ssdussud * <name>.dir. pname is a ptr to the filename. This should be an absolute
2024a190493Ssdussud * path.
2034a190493Ssdussud * Returns TRUE if the map exists and is accessible; else FALSE.
2044a190493Ssdussud *
2054a190493Ssdussud * Note: The file name should be a "base" form, without a file "extension" of
2064a190493Ssdussud * .dir or .pag appended. See ypmkfilename for a function which will generate
2074a190493Ssdussud * the name correctly. Errors in the stat call will be reported at this level,
2084a190493Ssdussud * however, the non-existence of a file is not considered an error, and so will
2094a190493Ssdussud * not be reported.
2104a190493Ssdussud *
2114a190493Ssdussud * Was originally in cmd/ypcmd/shared/utils.c as ypcheck_map_existence().
2124a190493Ssdussud * Now ypcheck_map_existence() calls this function.
2134a190493Ssdussud */
2144a190493Ssdussud bool
ypcheck_map_existence_yptol(char * pname)2154a190493Ssdussud ypcheck_map_existence_yptol(char *pname)
2164a190493Ssdussud {
2174a190493Ssdussud char dbfile[MAXNAMLEN + sizeof (TTL_POSTFIX) + 1];
218b892d001Svt struct stat64 filestat;
2194a190493Ssdussud int len;
2204a190493Ssdussud
2214a190493Ssdussud if (!pname || ((len = (int)strlen(pname)) == 0) ||
2224a190493Ssdussud (len + sizeof (dbm_pag) + sizeof (TTL_POSTFIX)) >
2234a190493Ssdussud sizeof (dbfile)) {
2244a190493Ssdussud return (FALSE);
2254a190493Ssdussud }
2264a190493Ssdussud
2274a190493Ssdussud errno = 0;
2284a190493Ssdussud
2294a190493Ssdussud /* Check for existance of .dir file */
2304a190493Ssdussud (void) strcpy(dbfile, pname);
2314a190493Ssdussud (void) strcat(dbfile, dbm_dir);
2324a190493Ssdussud
233b892d001Svt if (stat64(dbfile, &filestat) == -1) {
2344a190493Ssdussud if (errno != ENOENT) {
2354a190493Ssdussud (void) fprintf(stderr,
236b892d001Svt "ypserv: Stat error on map file %s.\n",
237b892d001Svt dbfile);
2384a190493Ssdussud }
2394a190493Ssdussud return (FALSE);
2404a190493Ssdussud }
2414a190493Ssdussud
2424a190493Ssdussud /* Check for existance of .pag file */
2434a190493Ssdussud (void) strcpy(dbfile, pname);
2444a190493Ssdussud (void) strcat(dbfile, dbm_pag);
2454a190493Ssdussud
246b892d001Svt if (stat64(dbfile, &filestat) == -1) {
2474a190493Ssdussud if (errno != ENOENT) {
2484a190493Ssdussud (void) fprintf(stderr,
249b892d001Svt "ypserv: Stat error on map file %s.\n",
250b892d001Svt dbfile);
2514a190493Ssdussud }
2524a190493Ssdussud return (FALSE);
2534a190493Ssdussud }
2544a190493Ssdussud
2554a190493Ssdussud if (yptol_mode) {
2564a190493Ssdussud /* Check for existance of TTL .dir file */
2574a190493Ssdussud (void) strcpy(dbfile, pname);
2584a190493Ssdussud (void) strcat(dbfile, TTL_POSTFIX);
2594a190493Ssdussud (void) strcat(dbfile, dbm_dir);
2604a190493Ssdussud
261b892d001Svt if (stat64(dbfile, &filestat) == -1) {
2624a190493Ssdussud if (errno != ENOENT) {
2634a190493Ssdussud (void) fprintf(stderr,
264b892d001Svt "ypserv: Stat error on map file %s.\n",
265b892d001Svt dbfile);
2664a190493Ssdussud }
2674a190493Ssdussud return (FALSE);
2684a190493Ssdussud }
2694a190493Ssdussud
2704a190493Ssdussud /* Check for existance of TTL .pag file */
2714a190493Ssdussud (void) strcpy(dbfile, pname);
2724a190493Ssdussud (void) strcat(dbfile, TTL_POSTFIX);
2734a190493Ssdussud (void) strcat(dbfile, dbm_pag);
2744a190493Ssdussud
275b892d001Svt if (stat64(dbfile, &filestat) == -1) {
2764a190493Ssdussud if (errno != ENOENT) {
2774a190493Ssdussud (void) fprintf(stderr,
278b892d001Svt "ypserv: Stat error on map file %s.\n",
279b892d001Svt dbfile);
2804a190493Ssdussud }
2814a190493Ssdussud return (FALSE);
2824a190493Ssdussud }
2834a190493Ssdussud }
2844a190493Ssdussud
2854a190493Ssdussud return (TRUE);
2864a190493Ssdussud }
2874a190493Ssdussud
2884a190493Ssdussud /*
2894a190493Ssdussud * This adds maps in a domain to a given list,
2904a190493Ssdussud * from maps in /var/yp/<domain>
2914a190493Ssdussud * Inspired from yplist_maps() in cmd/ypcmd/ypserv_ancil.c
2924a190493Ssdussud *
2934a190493Ssdussud * domain is the relevant domain name
2944a190493Ssdussud * map_list is the list of maps in an array of map names,
2954a190493Ssdussud * which may or may not be empty
2964a190493Ssdussud *
2974a190493Ssdussud * RETURNS : TRUE = everything went fine
2984a190493Ssdussud * FALSE = an error occured
2994a190493Ssdussud */
3004a190493Ssdussud bool_t
add_map_domain_to_list(char * domain,char *** map_list)3014a190493Ssdussud add_map_domain_to_list(char *domain, char ***map_list)
3024a190493Ssdussud {
3034a190493Ssdussud char domdir[MAXNAMLEN + 1];
3044a190493Ssdussud char path[MAXNAMLEN + 1];
3054a190493Ssdussud int domdir_len = sizeof (domdir);
3064a190493Ssdussud DIR *dirp;
3074a190493Ssdussud struct dirent *dp;
3084a190493Ssdussud int name_len;
3094a190493Ssdussud int dbm_pag_len = sizeof (dbm_pag);
3104a190493Ssdussud char *ext;
3114a190493Ssdussud char *mapname;
3124a190493Ssdussud int map_list_len = -1;
3134a190493Ssdussud
3144a190493Ssdussud if (map_list == NULL) {
3154a190493Ssdussud return (FALSE);
3164a190493Ssdussud }
3174a190493Ssdussud
3184a190493Ssdussud /* no domain, not a problem */
3194a190493Ssdussud if (domain == NULL) {
3204a190493Ssdussud return (TRUE);
3214a190493Ssdussud }
3224a190493Ssdussud
3234a190493Ssdussud /* not a valid domain, not a problem */
3244a190493Ssdussud if (!ypcheck_domain_yptol(domain)) {
3254a190493Ssdussud return (TRUE);
3264a190493Ssdussud }
3274a190493Ssdussud
3284a190493Ssdussud if (snprintf(domdir, domdir_len, "%s/%s", ypdbpath, domain)
3294a190493Ssdussud > domdir_len) {
3304a190493Ssdussud return (FALSE);
3314a190493Ssdussud }
3324a190493Ssdussud
3334a190493Ssdussud if ((dirp = opendir(domdir)) == NULL) {
3344a190493Ssdussud return (FALSE);
3354a190493Ssdussud }
3364a190493Ssdussud
3374a190493Ssdussud for (dp = readdir(dirp); dp != NULL;
3384a190493Ssdussud dp = readdir(dirp)) {
3394a190493Ssdussud /*
3404a190493Ssdussud * If it's possible that the file name is one of the two files
3414a190493Ssdussud * implementing a map, remove the extension (dbm_pag or dbm_dir)
3424a190493Ssdussud */
3434a190493Ssdussud name_len = (int)strlen(dp->d_name);
3444a190493Ssdussud
3454a190493Ssdussud if (name_len < dbm_pag_len - 1) {
3464a190493Ssdussud continue; /* Too Short */
3474a190493Ssdussud }
3484a190493Ssdussud
3494a190493Ssdussud ext = &(dp->d_name[name_len - (dbm_pag_len - 1)]);
3504a190493Ssdussud
3514a190493Ssdussud if (strcmp(ext, dbm_pag) != 0) {
3524a190493Ssdussud continue; /* No dbm file extension */
3534a190493Ssdussud }
3544a190493Ssdussud
3554a190493Ssdussud *ext = '\0';
3564a190493Ssdussud
3574a190493Ssdussud /*
3584a190493Ssdussud * In yptol mode look at LDAP_ prefixed maps. In non yptol mode
3594a190493Ssdussud * ignore them.
3604a190493Ssdussud */
3614a190493Ssdussud if (yptol_mode) {
3624a190493Ssdussud if (0 != strncmp(dp->d_name, NTOL_PREFIX,
3634a190493Ssdussud strlen(NTOL_PREFIX))) {
3644a190493Ssdussud continue;
3654a190493Ssdussud }
3664a190493Ssdussud
3674a190493Ssdussud /*
3684a190493Ssdussud * Already have an LDAP_ prefix. Don't want to add it
3694a190493Ssdussud * twice.
3704a190493Ssdussud */
3714a190493Ssdussud mapname = dp->d_name + strlen(NTOL_PREFIX);
3724a190493Ssdussud } else {
3734a190493Ssdussud if (0 == strncmp(dp->d_name, NTOL_PREFIX,
3744a190493Ssdussud strlen(NTOL_PREFIX))) {
3754a190493Ssdussud continue;
3764a190493Ssdussud }
3774a190493Ssdussud mapname = dp->d_name;
3784a190493Ssdussud }
3794a190493Ssdussud
3804a190493Ssdussud if (ypmkfilename(domain, mapname, path) == FALSE) {
3814a190493Ssdussud (void) closedir(dirp);
3824a190493Ssdussud return (FALSE);
3834a190493Ssdussud }
3844a190493Ssdussud
3854a190493Ssdussud /*
3864a190493Ssdussud * At this point, path holds the map file base name (no dbm
3874a190493Ssdussud * file extension), and mapname holds the map name.
3884a190493Ssdussud */
3894a190493Ssdussud if (ypcheck_map_existence_yptol(path) &&
3904a190493Ssdussud !on_maplist(mapname, *map_list)) {
3914a190493Ssdussud if (add_in_maplist(mapname, map_list, &map_list_len) ==
3924a190493Ssdussud FALSE) {
3934a190493Ssdussud (void) closedir(dirp);
3944a190493Ssdussud return (FALSE);
3954a190493Ssdussud }
3964a190493Ssdussud }
3974a190493Ssdussud }
3984a190493Ssdussud
3994a190493Ssdussud (void) closedir(dirp);
4004a190493Ssdussud return (TRUE);
4014a190493Ssdussud }
402