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
57c478bd9Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
67c478bd9Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
77c478bd9Sstevel@tonic-gate * with the License.
87c478bd9Sstevel@tonic-gate *
97c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
107c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
117c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions
127c478bd9Sstevel@tonic-gate * and limitations under the License.
137c478bd9Sstevel@tonic-gate *
147c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
157c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
167c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
177c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
187c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
197c478bd9Sstevel@tonic-gate *
207c478bd9Sstevel@tonic-gate * CDDL HEADER END
2161961e0fSrobinson */
2261961e0fSrobinson
2361961e0fSrobinson /*
24e8031f0aSraf * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
257c478bd9Sstevel@tonic-gate * Use is subject to license terms.
26*48bbca81SDaniel Hoffman * Copyright (c) 2016 by Delphix. All rights reserved.
277c478bd9Sstevel@tonic-gate */
287c478bd9Sstevel@tonic-gate
297c478bd9Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
307c478bd9Sstevel@tonic-gate /* All Rights Reserved */
317c478bd9Sstevel@tonic-gate
327c478bd9Sstevel@tonic-gate /*
337c478bd9Sstevel@tonic-gate * Portions of this source code were derived from Berkeley
347c478bd9Sstevel@tonic-gate * under license from the Regents of the University of
357c478bd9Sstevel@tonic-gate * California.
367c478bd9Sstevel@tonic-gate */
377c478bd9Sstevel@tonic-gate
38e8031f0aSraf #include "mt.h"
3961961e0fSrobinson #include <stdlib.h>
4061961e0fSrobinson #include <unistd.h>
417c478bd9Sstevel@tonic-gate #include <rpc/rpc.h>
427c478bd9Sstevel@tonic-gate #include <sys/types.h>
437c478bd9Sstevel@tonic-gate #include "yp_b.h"
447c478bd9Sstevel@tonic-gate #include <rpcsvc/yp_prot.h>
457c478bd9Sstevel@tonic-gate #include <rpcsvc/ypclnt.h>
467c478bd9Sstevel@tonic-gate #include <string.h>
477c478bd9Sstevel@tonic-gate
487c478bd9Sstevel@tonic-gate static int domaster(char *, char *, struct dom_binding *, struct timeval,
497c478bd9Sstevel@tonic-gate char **);
5061961e0fSrobinson extern int __yp_master_rsvdport(char *, char *, char **);
517c478bd9Sstevel@tonic-gate
527c478bd9Sstevel@tonic-gate /*
537c478bd9Sstevel@tonic-gate * This checks parameters, and implements the outer "until binding success"
547c478bd9Sstevel@tonic-gate * loop.
557c478bd9Sstevel@tonic-gate */
567c478bd9Sstevel@tonic-gate int
yp_master(char * domain,char * map,char ** master)5761961e0fSrobinson yp_master(char *domain, char *map, char **master)
587c478bd9Sstevel@tonic-gate {
597c478bd9Sstevel@tonic-gate size_t domlen;
607c478bd9Sstevel@tonic-gate size_t maplen;
617c478bd9Sstevel@tonic-gate int reason;
627c478bd9Sstevel@tonic-gate struct dom_binding *pdomb;
637c478bd9Sstevel@tonic-gate
6461961e0fSrobinson if ((map == NULL) || (domain == NULL))
657c478bd9Sstevel@tonic-gate return (YPERR_BADARGS);
667c478bd9Sstevel@tonic-gate
677c478bd9Sstevel@tonic-gate domlen = strlen(domain);
687c478bd9Sstevel@tonic-gate maplen = strlen(map);
697c478bd9Sstevel@tonic-gate
707c478bd9Sstevel@tonic-gate if ((domlen == 0) || (domlen > YPMAXDOMAIN) ||
717c478bd9Sstevel@tonic-gate (maplen == 0) || (maplen > YPMAXMAP) ||
7261961e0fSrobinson (master == NULL))
737c478bd9Sstevel@tonic-gate return (YPERR_BADARGS);
747c478bd9Sstevel@tonic-gate
757c478bd9Sstevel@tonic-gate for (;;) {
767c478bd9Sstevel@tonic-gate
7761961e0fSrobinson if (reason = __yp_dobind(domain, &pdomb))
787c478bd9Sstevel@tonic-gate return (reason);
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) {
817c478bd9Sstevel@tonic-gate
827c478bd9Sstevel@tonic-gate reason = domaster(domain, map, pdomb, _ypserv_timeout,
837c478bd9Sstevel@tonic-gate master);
847c478bd9Sstevel@tonic-gate
857c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb);
867c478bd9Sstevel@tonic-gate if (reason == YPERR_RPC) {
877c478bd9Sstevel@tonic-gate yp_unbind(domain);
88e8031f0aSraf (void) sleep(_ypsleeptime);
897c478bd9Sstevel@tonic-gate } else {
907c478bd9Sstevel@tonic-gate break;
917c478bd9Sstevel@tonic-gate }
927c478bd9Sstevel@tonic-gate } else {
937c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb);
947c478bd9Sstevel@tonic-gate return (YPERR_VERS);
957c478bd9Sstevel@tonic-gate }
967c478bd9Sstevel@tonic-gate }
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate if (reason == YPERR_MAP && geteuid() == 0) {
997c478bd9Sstevel@tonic-gate /*
1007c478bd9Sstevel@tonic-gate * Lookup could be for a secure map; fail over to retry
1017c478bd9Sstevel@tonic-gate * from a reserved port. Only useful to try this if we're
1027c478bd9Sstevel@tonic-gate * the super user.
1037c478bd9Sstevel@tonic-gate */
1047c478bd9Sstevel@tonic-gate int rsvdreason;
1057c478bd9Sstevel@tonic-gate rsvdreason = __yp_master_rsvdport(domain, map, master);
1067c478bd9Sstevel@tonic-gate if (rsvdreason == 0)
1077c478bd9Sstevel@tonic-gate reason = rsvdreason;
1087c478bd9Sstevel@tonic-gate }
1097c478bd9Sstevel@tonic-gate
1107c478bd9Sstevel@tonic-gate return (reason);
1117c478bd9Sstevel@tonic-gate }
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate
1147c478bd9Sstevel@tonic-gate /*
1157c478bd9Sstevel@tonic-gate * This function is identical to 'yp_master' with the exception that it calls
1167c478bd9Sstevel@tonic-gate * '__yp_dobind_rsvdport' rather than '__yp_dobind'
1177c478bd9Sstevel@tonic-gate */
1187c478bd9Sstevel@tonic-gate int
__yp_master_rsvdport(char * domain,char * map,char ** master)11961961e0fSrobinson __yp_master_rsvdport(char *domain, char *map, char **master)
1207c478bd9Sstevel@tonic-gate {
1217c478bd9Sstevel@tonic-gate size_t domlen;
1227c478bd9Sstevel@tonic-gate size_t maplen;
1237c478bd9Sstevel@tonic-gate int reason;
1247c478bd9Sstevel@tonic-gate struct dom_binding *pdomb;
1257c478bd9Sstevel@tonic-gate
12661961e0fSrobinson if ((map == NULL) || (domain == NULL))
1277c478bd9Sstevel@tonic-gate return (YPERR_BADARGS);
1287c478bd9Sstevel@tonic-gate
1297c478bd9Sstevel@tonic-gate domlen = strlen(domain);
1307c478bd9Sstevel@tonic-gate maplen = strlen(map);
1317c478bd9Sstevel@tonic-gate
1327c478bd9Sstevel@tonic-gate if ((domlen == 0) || (domlen > YPMAXDOMAIN) ||
1337c478bd9Sstevel@tonic-gate (maplen == 0) || (maplen > YPMAXMAP) ||
13461961e0fSrobinson (master == NULL))
1357c478bd9Sstevel@tonic-gate return (YPERR_BADARGS);
1367c478bd9Sstevel@tonic-gate
1377c478bd9Sstevel@tonic-gate for (;;) {
1387c478bd9Sstevel@tonic-gate
13961961e0fSrobinson if (reason = __yp_dobind_rsvdport(domain, &pdomb))
1407c478bd9Sstevel@tonic-gate return (reason);
1417c478bd9Sstevel@tonic-gate
1427c478bd9Sstevel@tonic-gate if (pdomb->dom_binding->ypbind_hi_vers >= YPVERS) {
1437c478bd9Sstevel@tonic-gate
1447c478bd9Sstevel@tonic-gate reason = domaster(domain, map, pdomb, _ypserv_timeout,
1457c478bd9Sstevel@tonic-gate master);
1467c478bd9Sstevel@tonic-gate
1477c478bd9Sstevel@tonic-gate /*
1487c478bd9Sstevel@tonic-gate * Have to free the binding since the reserved
1497c478bd9Sstevel@tonic-gate * port bindings are not cached.
1507c478bd9Sstevel@tonic-gate */
1517c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb);
1527c478bd9Sstevel@tonic-gate free_dom_binding(pdomb);
1537c478bd9Sstevel@tonic-gate if (reason == YPERR_RPC) {
1547c478bd9Sstevel@tonic-gate yp_unbind(domain);
155e8031f0aSraf (void) sleep(_ypsleeptime);
1567c478bd9Sstevel@tonic-gate } else {
1577c478bd9Sstevel@tonic-gate break;
1587c478bd9Sstevel@tonic-gate }
1597c478bd9Sstevel@tonic-gate } else {
1607c478bd9Sstevel@tonic-gate /*
1617c478bd9Sstevel@tonic-gate * Have to free the binding since the reserved
1627c478bd9Sstevel@tonic-gate * port bindings are not cached.
1637c478bd9Sstevel@tonic-gate */
1647c478bd9Sstevel@tonic-gate __yp_rel_binding(pdomb);
1657c478bd9Sstevel@tonic-gate free_dom_binding(pdomb);
1667c478bd9Sstevel@tonic-gate return (YPERR_VERS);
1677c478bd9Sstevel@tonic-gate }
1687c478bd9Sstevel@tonic-gate }
1697c478bd9Sstevel@tonic-gate return (reason);
1707c478bd9Sstevel@tonic-gate }
1717c478bd9Sstevel@tonic-gate
1727c478bd9Sstevel@tonic-gate /*
1737c478bd9Sstevel@tonic-gate * This talks v2 to ypserv
1747c478bd9Sstevel@tonic-gate */
1757c478bd9Sstevel@tonic-gate static int
domaster(char * domain,char * map,struct dom_binding * pdomb,struct timeval timeout,char ** master)17661961e0fSrobinson domaster(char *domain, char *map, struct dom_binding *pdomb,
17761961e0fSrobinson struct timeval timeout, char **master)
1787c478bd9Sstevel@tonic-gate {
1797c478bd9Sstevel@tonic-gate struct ypreq_nokey req;
1807c478bd9Sstevel@tonic-gate struct ypresp_master resp;
1817c478bd9Sstevel@tonic-gate unsigned int retval = 0;
1827c478bd9Sstevel@tonic-gate
1837c478bd9Sstevel@tonic-gate req.domain = domain;
1847c478bd9Sstevel@tonic-gate req.map = map;
18561961e0fSrobinson (void) memset(&resp, 0, sizeof (struct ypresp_master));
1867c478bd9Sstevel@tonic-gate
1877c478bd9Sstevel@tonic-gate /*
1887c478bd9Sstevel@tonic-gate * Do the get_master request. If the rpc call failed, return with
1897c478bd9Sstevel@tonic-gate * status from this point.
1907c478bd9Sstevel@tonic-gate */
1917c478bd9Sstevel@tonic-gate
1927c478bd9Sstevel@tonic-gate if (clnt_call(pdomb->dom_client,
1937c478bd9Sstevel@tonic-gate YPPROC_MASTER, (xdrproc_t)xdr_ypreq_nokey,
1947c478bd9Sstevel@tonic-gate (char *)&req, (xdrproc_t)xdr_ypresp_master, (char *)&resp,
19561961e0fSrobinson timeout) != RPC_SUCCESS)
1967c478bd9Sstevel@tonic-gate return (YPERR_RPC);
1977c478bd9Sstevel@tonic-gate
1987c478bd9Sstevel@tonic-gate /* See if the request succeeded */
1997c478bd9Sstevel@tonic-gate
20061961e0fSrobinson if (resp.status != YP_TRUE)
2017c478bd9Sstevel@tonic-gate retval = ypprot_err(resp.status);
2027c478bd9Sstevel@tonic-gate
203*48bbca81SDaniel Hoffman /* Get some memory which the user can get rid of as they like */
2047c478bd9Sstevel@tonic-gate
20561961e0fSrobinson if (!retval && ((*master = malloc(strlen(resp.master) + 1)) == NULL))
2067c478bd9Sstevel@tonic-gate retval = YPERR_RESRC;
2077c478bd9Sstevel@tonic-gate
20861961e0fSrobinson if (!retval)
2097c478bd9Sstevel@tonic-gate (void) strcpy(*master, resp.master);
2107c478bd9Sstevel@tonic-gate
2117c478bd9Sstevel@tonic-gate CLNT_FREERES(pdomb->dom_client,
2127c478bd9Sstevel@tonic-gate (xdrproc_t)xdr_ypresp_master, (char *)&resp);
2137c478bd9Sstevel@tonic-gate return (retval);
2147c478bd9Sstevel@tonic-gate }
215