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
5*36e852a1SRaja Andra * Common Development and Distribution License (the "License").
6*36e852a1SRaja Andra * 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 /*
227c478bd9Sstevel@tonic-gate * ns_generic.c
237c478bd9Sstevel@tonic-gate *
24*36e852a1SRaja Andra * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
257c478bd9Sstevel@tonic-gate * Use is subject to license terms.
267c478bd9Sstevel@tonic-gate */
277c478bd9Sstevel@tonic-gate
287c478bd9Sstevel@tonic-gate #include <stdio.h>
297c478bd9Sstevel@tonic-gate #include <syslog.h>
307c478bd9Sstevel@tonic-gate #include <string.h>
317c478bd9Sstevel@tonic-gate #include <stdlib.h>
327c478bd9Sstevel@tonic-gate #include <nsswitch.h>
337c478bd9Sstevel@tonic-gate #include <sys/param.h>
347c478bd9Sstevel@tonic-gate #include <netdb.h>
357c478bd9Sstevel@tonic-gate #include <errno.h>
367c478bd9Sstevel@tonic-gate #include <assert.h>
377c478bd9Sstevel@tonic-gate #include <rpc/rpc.h>
387c478bd9Sstevel@tonic-gate #include <rpcsvc/nfs_prot.h>
397c478bd9Sstevel@tonic-gate #include "automount.h"
407c478bd9Sstevel@tonic-gate
417c478bd9Sstevel@tonic-gate /*
427c478bd9Sstevel@tonic-gate * Each name service is represented by a ns_info structure.
437c478bd9Sstevel@tonic-gate */
447c478bd9Sstevel@tonic-gate struct ns_info {
457c478bd9Sstevel@tonic-gate char *ns_name; /* service name */
467c478bd9Sstevel@tonic-gate void (*ns_init)(); /* initialization routine */
477c478bd9Sstevel@tonic-gate int (*ns_getmapent)(); /* get map entry given key */
487c478bd9Sstevel@tonic-gate int (*ns_loadmaster)(); /* load master map */
497c478bd9Sstevel@tonic-gate int (*ns_loaddirect)(); /* load direct map */
507c478bd9Sstevel@tonic-gate int (*ns_getmapkeys)(); /* readdir */
517c478bd9Sstevel@tonic-gate };
527c478bd9Sstevel@tonic-gate
537c478bd9Sstevel@tonic-gate static struct ns_info ns_info[] = {
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate "files", init_files, getmapent_files,
567c478bd9Sstevel@tonic-gate loadmaster_files, loaddirect_files,
577c478bd9Sstevel@tonic-gate getmapkeys_files,
587c478bd9Sstevel@tonic-gate
597c478bd9Sstevel@tonic-gate "ldap", init_ldap, getmapent_ldap,
607c478bd9Sstevel@tonic-gate loadmaster_ldap, loaddirect_ldap,
617c478bd9Sstevel@tonic-gate getmapkeys_ldap,
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate "nis", init_nis, getmapent_nis,
647c478bd9Sstevel@tonic-gate loadmaster_nis, loaddirect_nis,
657c478bd9Sstevel@tonic-gate getmapkeys_nis,
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate NULL, NULL, NULL, NULL, NULL, NULL, NULL
687c478bd9Sstevel@tonic-gate };
697c478bd9Sstevel@tonic-gate
707c478bd9Sstevel@tonic-gate static struct ns_info *get_next_ns(struct __nsw_lookup **, int);
717c478bd9Sstevel@tonic-gate
727c478bd9Sstevel@tonic-gate void
ns_setup(char ** stack,char *** stkptr)737c478bd9Sstevel@tonic-gate ns_setup(char **stack, char ***stkptr)
747c478bd9Sstevel@tonic-gate {
757c478bd9Sstevel@tonic-gate struct ns_info *nsp;
767c478bd9Sstevel@tonic-gate
777c478bd9Sstevel@tonic-gate for (nsp = ns_info; nsp->ns_name; nsp++) {
787c478bd9Sstevel@tonic-gate nsp->ns_init(stack, stkptr);
797c478bd9Sstevel@tonic-gate }
807c478bd9Sstevel@tonic-gate }
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate static struct ns_info *
get_next_ns(curr_ns,curr_nserr)837c478bd9Sstevel@tonic-gate get_next_ns(curr_ns, curr_nserr)
847c478bd9Sstevel@tonic-gate struct __nsw_lookup **curr_ns;
857c478bd9Sstevel@tonic-gate int curr_nserr;
867c478bd9Sstevel@tonic-gate {
877c478bd9Sstevel@tonic-gate static struct __nsw_switchconfig *conf = NULL;
887c478bd9Sstevel@tonic-gate enum __nsw_parse_err pserr;
897c478bd9Sstevel@tonic-gate struct __nsw_lookup *lkp;
907c478bd9Sstevel@tonic-gate struct ns_info *nsp;
917c478bd9Sstevel@tonic-gate
927c478bd9Sstevel@tonic-gate if (conf == NULL) {
937c478bd9Sstevel@tonic-gate /* __nsw_getconfig() is protected by a lock */
947c478bd9Sstevel@tonic-gate conf = __nsw_getconfig("automount", &pserr);
957c478bd9Sstevel@tonic-gate if (conf == NULL) {
967c478bd9Sstevel@tonic-gate return (NULL);
977c478bd9Sstevel@tonic-gate }
987c478bd9Sstevel@tonic-gate }
997c478bd9Sstevel@tonic-gate
1007c478bd9Sstevel@tonic-gate if (*curr_ns == NULL)
1017c478bd9Sstevel@tonic-gate /* first time */
1027c478bd9Sstevel@tonic-gate lkp = conf->lookups;
1037c478bd9Sstevel@tonic-gate else {
1047c478bd9Sstevel@tonic-gate lkp = *curr_ns;
1057c478bd9Sstevel@tonic-gate /* __NSW_ACTION is MT-Safe */
1067c478bd9Sstevel@tonic-gate if (__NSW_ACTION(lkp, curr_nserr) == __NSW_RETURN)
1077c478bd9Sstevel@tonic-gate return (NULL);
1087c478bd9Sstevel@tonic-gate lkp = lkp->next;
1097c478bd9Sstevel@tonic-gate }
1107c478bd9Sstevel@tonic-gate
1117c478bd9Sstevel@tonic-gate for (; lkp; lkp = lkp->next) {
1127c478bd9Sstevel@tonic-gate for (nsp = ns_info; nsp->ns_name; nsp++) {
1137c478bd9Sstevel@tonic-gate if (strcmp(lkp->service_name, nsp->ns_name) == 0) {
1147c478bd9Sstevel@tonic-gate *curr_ns = lkp;
1157c478bd9Sstevel@tonic-gate return (nsp);
1167c478bd9Sstevel@tonic-gate }
1177c478bd9Sstevel@tonic-gate }
1187c478bd9Sstevel@tonic-gate /*
1197c478bd9Sstevel@tonic-gate * Note: if we get here then we've found
1207c478bd9Sstevel@tonic-gate * an unsupported name service.
1217c478bd9Sstevel@tonic-gate */
1227c478bd9Sstevel@tonic-gate }
1237c478bd9Sstevel@tonic-gate
1247c478bd9Sstevel@tonic-gate return (NULL);
1257c478bd9Sstevel@tonic-gate }
1267c478bd9Sstevel@tonic-gate
1277c478bd9Sstevel@tonic-gate int
getmapent(key,mapname,ml,stack,stkptr,iswildcard,isrestricted)1287c478bd9Sstevel@tonic-gate getmapent(key, mapname, ml, stack, stkptr, iswildcard, isrestricted)
1297c478bd9Sstevel@tonic-gate char *key, *mapname;
1307c478bd9Sstevel@tonic-gate struct mapline *ml;
1317c478bd9Sstevel@tonic-gate char **stack, ***stkptr;
1327c478bd9Sstevel@tonic-gate bool_t *iswildcard;
1337c478bd9Sstevel@tonic-gate bool_t isrestricted;
1347c478bd9Sstevel@tonic-gate {
1357c478bd9Sstevel@tonic-gate struct __nsw_lookup *curr_ns = NULL;
1367c478bd9Sstevel@tonic-gate int ns_err = __NSW_SUCCESS;
1377c478bd9Sstevel@tonic-gate struct ns_info *nsp;
1387c478bd9Sstevel@tonic-gate
1397c478bd9Sstevel@tonic-gate if (strcmp(mapname, "-hosts") == 0) {
1407c478bd9Sstevel@tonic-gate (void) strcpy(ml->linebuf, "-hosts");
1417c478bd9Sstevel@tonic-gate return (__NSW_SUCCESS);
1427c478bd9Sstevel@tonic-gate }
1437c478bd9Sstevel@tonic-gate
1447c478bd9Sstevel@tonic-gate if (*mapname == '/') /* must be a file */
1457c478bd9Sstevel@tonic-gate return (getmapent_files(key, mapname, ml, stack, stkptr,
1467c478bd9Sstevel@tonic-gate iswildcard, isrestricted));
1477c478bd9Sstevel@tonic-gate
1487c478bd9Sstevel@tonic-gate while ((nsp = get_next_ns(&curr_ns, ns_err)) != NULL) {
1497c478bd9Sstevel@tonic-gate ns_err = nsp->ns_getmapent(key, mapname, ml, stack, stkptr,
1507c478bd9Sstevel@tonic-gate iswildcard, isrestricted);
1517c478bd9Sstevel@tonic-gate if (ns_err == __NSW_SUCCESS)
1527c478bd9Sstevel@tonic-gate return (__NSW_SUCCESS);
1537c478bd9Sstevel@tonic-gate }
1547c478bd9Sstevel@tonic-gate
1557c478bd9Sstevel@tonic-gate return (__NSW_UNAVAIL);
1567c478bd9Sstevel@tonic-gate }
1577c478bd9Sstevel@tonic-gate
1587c478bd9Sstevel@tonic-gate int
loadmaster_map(mapname,defopts,stack,stkptr)1597c478bd9Sstevel@tonic-gate loadmaster_map(mapname, defopts, stack, stkptr)
1607c478bd9Sstevel@tonic-gate char *mapname, *defopts;
1617c478bd9Sstevel@tonic-gate char **stack, ***stkptr;
1627c478bd9Sstevel@tonic-gate {
1637c478bd9Sstevel@tonic-gate struct __nsw_lookup *curr_ns = NULL;
1647c478bd9Sstevel@tonic-gate int ns_err = __NSW_SUCCESS;
1657c478bd9Sstevel@tonic-gate struct ns_info *nsp;
1667c478bd9Sstevel@tonic-gate
1677c478bd9Sstevel@tonic-gate if (*mapname == '/') /* must be a file */
1687c478bd9Sstevel@tonic-gate return (loadmaster_files(mapname, defopts, stack, stkptr));
1697c478bd9Sstevel@tonic-gate
1707c478bd9Sstevel@tonic-gate while ((nsp = get_next_ns(&curr_ns, ns_err)) != NULL) {
1717c478bd9Sstevel@tonic-gate ns_err = nsp->ns_loadmaster(mapname, defopts, stack, stkptr);
1727c478bd9Sstevel@tonic-gate if (ns_err == __NSW_SUCCESS)
1737c478bd9Sstevel@tonic-gate return (__NSW_SUCCESS);
1747c478bd9Sstevel@tonic-gate }
1757c478bd9Sstevel@tonic-gate
1767c478bd9Sstevel@tonic-gate return (__NSW_UNAVAIL);
1777c478bd9Sstevel@tonic-gate }
1787c478bd9Sstevel@tonic-gate
17911606941Sjwahlig int
loaddirect_map(mapname,localmap,defopts,stack,stkptr)1807c478bd9Sstevel@tonic-gate loaddirect_map(mapname, localmap, defopts, stack, stkptr)
1817c478bd9Sstevel@tonic-gate char *mapname, *localmap, *defopts;
1827c478bd9Sstevel@tonic-gate char **stack, ***stkptr;
1837c478bd9Sstevel@tonic-gate {
1847c478bd9Sstevel@tonic-gate struct __nsw_lookup *curr_ns = NULL;
1857c478bd9Sstevel@tonic-gate int ns_err = __NSW_SUCCESS;
1867c478bd9Sstevel@tonic-gate struct ns_info *nsp;
1877c478bd9Sstevel@tonic-gate
1887c478bd9Sstevel@tonic-gate if (*mapname == '/') /* must be a file */
1897c478bd9Sstevel@tonic-gate return (loaddirect_files(mapname, localmap, defopts,
1907c478bd9Sstevel@tonic-gate stack, stkptr));
1917c478bd9Sstevel@tonic-gate
1927c478bd9Sstevel@tonic-gate while ((nsp = get_next_ns(&curr_ns, ns_err)) != NULL) {
1937c478bd9Sstevel@tonic-gate ns_err = nsp->ns_loaddirect(mapname, localmap, defopts, stack,
1947c478bd9Sstevel@tonic-gate stkptr);
1957c478bd9Sstevel@tonic-gate if (ns_err == __NSW_SUCCESS)
1967c478bd9Sstevel@tonic-gate return (__NSW_SUCCESS);
1977c478bd9Sstevel@tonic-gate }
1987c478bd9Sstevel@tonic-gate
1997c478bd9Sstevel@tonic-gate return (__NSW_UNAVAIL);
2007c478bd9Sstevel@tonic-gate }
2017c478bd9Sstevel@tonic-gate
2027c478bd9Sstevel@tonic-gate int
gethostkeys(mapname,list,error,cache_time)2037c478bd9Sstevel@tonic-gate gethostkeys(mapname, list, error, cache_time)
2047c478bd9Sstevel@tonic-gate char *mapname;
2057c478bd9Sstevel@tonic-gate struct dir_entry **list;
2067c478bd9Sstevel@tonic-gate int *error;
2077c478bd9Sstevel@tonic-gate int *cache_time;
2087c478bd9Sstevel@tonic-gate {
2097c478bd9Sstevel@tonic-gate char *buffer, **p;
2107c478bd9Sstevel@tonic-gate int bufferlen = 1000;
2117c478bd9Sstevel@tonic-gate struct dir_entry *last = NULL;
2127c478bd9Sstevel@tonic-gate struct hostent ent;
2137c478bd9Sstevel@tonic-gate
2147c478bd9Sstevel@tonic-gate #ifdef lint
2157c478bd9Sstevel@tonic-gate mapname = mapname;
2167c478bd9Sstevel@tonic-gate #endif
2177c478bd9Sstevel@tonic-gate
2187c478bd9Sstevel@tonic-gate *cache_time = RDDIR_CACHE_TIME * 2;
2197c478bd9Sstevel@tonic-gate *error = 0;
2207c478bd9Sstevel@tonic-gate if (trace > 1)
2217c478bd9Sstevel@tonic-gate trace_prt(1, "gethostkeys called\n");
2227c478bd9Sstevel@tonic-gate
2237c478bd9Sstevel@tonic-gate if (sethostent(1)) {
2247c478bd9Sstevel@tonic-gate syslog(LOG_ERR, "gethostkeys: sethostent failed");
2257c478bd9Sstevel@tonic-gate *error = EIO;
2267c478bd9Sstevel@tonic-gate return (__NSW_UNAVAIL);
2277c478bd9Sstevel@tonic-gate }
2287c478bd9Sstevel@tonic-gate
2297c478bd9Sstevel@tonic-gate buffer = (char *)malloc(bufferlen);
2307c478bd9Sstevel@tonic-gate if (buffer == NULL) {
2317c478bd9Sstevel@tonic-gate syslog(LOG_ERR, "gethostkeys: malloc of buffer failed");
2327c478bd9Sstevel@tonic-gate *error = ENOMEM;
2337c478bd9Sstevel@tonic-gate return (__NSW_UNAVAIL);
2347c478bd9Sstevel@tonic-gate }
2357c478bd9Sstevel@tonic-gate
2367c478bd9Sstevel@tonic-gate while (gethostent_r(&ent, buffer, bufferlen, error)) {
2377c478bd9Sstevel@tonic-gate /*
2387c478bd9Sstevel@tonic-gate * add canonical name
2397c478bd9Sstevel@tonic-gate */
2407c478bd9Sstevel@tonic-gate if (add_dir_entry(ent.h_name, list, &last)) {
2417c478bd9Sstevel@tonic-gate *error = ENOMEM;
2427c478bd9Sstevel@tonic-gate goto done;
2437c478bd9Sstevel@tonic-gate }
2447c478bd9Sstevel@tonic-gate if (ent.h_aliases == NULL)
2457c478bd9Sstevel@tonic-gate goto done; /* no aliases */
2467c478bd9Sstevel@tonic-gate for (p = ent.h_aliases; *p != 0; p++) {
2477c478bd9Sstevel@tonic-gate if (strcmp(*p, ent.h_name) != 0) {
2487c478bd9Sstevel@tonic-gate /*
2497c478bd9Sstevel@tonic-gate * add alias only if different
2507c478bd9Sstevel@tonic-gate * from canonical name
2517c478bd9Sstevel@tonic-gate */
2527c478bd9Sstevel@tonic-gate if (add_dir_entry(*p, list, &last)) {
2537c478bd9Sstevel@tonic-gate *error = ENOMEM;
2547c478bd9Sstevel@tonic-gate goto done;
2557c478bd9Sstevel@tonic-gate }
2567c478bd9Sstevel@tonic-gate }
2577c478bd9Sstevel@tonic-gate }
2587c478bd9Sstevel@tonic-gate assert(last != NULL);
2597c478bd9Sstevel@tonic-gate }
2607c478bd9Sstevel@tonic-gate done: if (*list != NULL) {
2617c478bd9Sstevel@tonic-gate /*
2627c478bd9Sstevel@tonic-gate * list of entries found
2637c478bd9Sstevel@tonic-gate */
2647c478bd9Sstevel@tonic-gate *error = 0;
2657c478bd9Sstevel@tonic-gate }
2667c478bd9Sstevel@tonic-gate endhostent();
2677c478bd9Sstevel@tonic-gate
2687c478bd9Sstevel@tonic-gate return (__NSW_SUCCESS);
2697c478bd9Sstevel@tonic-gate }
2707c478bd9Sstevel@tonic-gate
2717c478bd9Sstevel@tonic-gate /*
2727c478bd9Sstevel@tonic-gate * enumerate all entries in the map in the various name services.
2737c478bd9Sstevel@tonic-gate */
27411606941Sjwahlig int
getmapkeys(mapname,list,error,cache_time,stack,stkptr,uid)2757c478bd9Sstevel@tonic-gate getmapkeys(mapname, list, error, cache_time, stack, stkptr, uid)
2767c478bd9Sstevel@tonic-gate char *mapname;
2777c478bd9Sstevel@tonic-gate struct dir_entry **list;
2787c478bd9Sstevel@tonic-gate int *error;
2797c478bd9Sstevel@tonic-gate int *cache_time;
2807c478bd9Sstevel@tonic-gate char **stack, ***stkptr;
2817c478bd9Sstevel@tonic-gate uid_t uid;
2827c478bd9Sstevel@tonic-gate
2837c478bd9Sstevel@tonic-gate {
2847c478bd9Sstevel@tonic-gate struct __nsw_lookup *curr_ns = NULL;
2857c478bd9Sstevel@tonic-gate int ns_err = __NSW_SUCCESS;
2867c478bd9Sstevel@tonic-gate int success = 0;
2877c478bd9Sstevel@tonic-gate struct ns_info *nsp;
2887c478bd9Sstevel@tonic-gate
2897c478bd9Sstevel@tonic-gate if (*mapname == '/') /* must be a file */
2907c478bd9Sstevel@tonic-gate return (getmapkeys_files(mapname, list, error, cache_time,
2917c478bd9Sstevel@tonic-gate stack, stkptr));
2927c478bd9Sstevel@tonic-gate if (strcmp(mapname, "-hosts") == 0) {
2937c478bd9Sstevel@tonic-gate return (gethostkeys(mapname, list, error, cache_time));
2947c478bd9Sstevel@tonic-gate }
2957c478bd9Sstevel@tonic-gate
2967c478bd9Sstevel@tonic-gate while ((nsp = get_next_ns(&curr_ns, ns_err)) != NULL) {
2977c478bd9Sstevel@tonic-gate ns_err = nsp->ns_getmapkeys(mapname, list, error,
2987c478bd9Sstevel@tonic-gate cache_time, stack, stkptr);
2997c478bd9Sstevel@tonic-gate if (*error == 0) {
3007c478bd9Sstevel@tonic-gate /*
3017c478bd9Sstevel@tonic-gate * return success if listing was successful
3027c478bd9Sstevel@tonic-gate * for at least one name service
3037c478bd9Sstevel@tonic-gate */
3047c478bd9Sstevel@tonic-gate success++;
3057c478bd9Sstevel@tonic-gate }
3067c478bd9Sstevel@tonic-gate
3077c478bd9Sstevel@tonic-gate /*
3087c478bd9Sstevel@tonic-gate * XXX force next name service
3097c478bd9Sstevel@tonic-gate */
3107c478bd9Sstevel@tonic-gate if (ns_err != __NSW_UNAVAIL)
3117c478bd9Sstevel@tonic-gate ns_err = __NSW_NOTFOUND;
3127c478bd9Sstevel@tonic-gate }
3137c478bd9Sstevel@tonic-gate if (success) {
3147c478bd9Sstevel@tonic-gate /*
3157c478bd9Sstevel@tonic-gate * if succeeded at least once, return error=0
3167c478bd9Sstevel@tonic-gate */
3177c478bd9Sstevel@tonic-gate *error = 0;
3187c478bd9Sstevel@tonic-gate };
3197c478bd9Sstevel@tonic-gate
3207c478bd9Sstevel@tonic-gate return (success ? __NSW_SUCCESS : __NSW_NOTFOUND);
3217c478bd9Sstevel@tonic-gate }
322