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*a237e38eSth * Common Development and Distribution License (the "License").
6*a237e38eSth * 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 */
21*a237e38eSth
227c478bd9Sstevel@tonic-gate /*
23*a237e38eSth * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
24*a237e38eSth * Use is subject to license terms.
257c478bd9Sstevel@tonic-gate */
267c478bd9Sstevel@tonic-gate
277c478bd9Sstevel@tonic-gate #include <stdio.h>
287c478bd9Sstevel@tonic-gate #include <stdlib.h>
297c478bd9Sstevel@tonic-gate #include <sys/types.h>
307c478bd9Sstevel@tonic-gate #include <string.h>
317c478bd9Sstevel@tonic-gate #include <syslog.h>
327c478bd9Sstevel@tonic-gate #include <sys/param.h>
337c478bd9Sstevel@tonic-gate #include <sys/stat.h>
347c478bd9Sstevel@tonic-gate #include <sys/file.h>
357c478bd9Sstevel@tonic-gate #include <sys/time.h>
367c478bd9Sstevel@tonic-gate #include <errno.h>
377c478bd9Sstevel@tonic-gate #include <rpcsvc/mount.h>
387c478bd9Sstevel@tonic-gate #include <sys/pathconf.h>
397c478bd9Sstevel@tonic-gate #include <sys/systeminfo.h>
407c478bd9Sstevel@tonic-gate #include <sys/utsname.h>
417c478bd9Sstevel@tonic-gate #include <signal.h>
427c478bd9Sstevel@tonic-gate #include <locale.h>
437c478bd9Sstevel@tonic-gate #include <unistd.h>
447c478bd9Sstevel@tonic-gate #include <thread.h>
45*a237e38eSth #include <sharefs/share.h>
46*a237e38eSth #include <sharefs/sharetab.h>
477c478bd9Sstevel@tonic-gate #include "../lib/sharetab.h"
487c478bd9Sstevel@tonic-gate #include "mountd.h"
497c478bd9Sstevel@tonic-gate
507c478bd9Sstevel@tonic-gate static void freeexports(struct exportnode *);
517c478bd9Sstevel@tonic-gate static struct groupnode **newgroup(char *, struct groupnode **);
527c478bd9Sstevel@tonic-gate static struct exportnode **newexport(char *, struct groupnode *,
537c478bd9Sstevel@tonic-gate struct exportnode **);
547c478bd9Sstevel@tonic-gate
557c478bd9Sstevel@tonic-gate static char *optlist[] = {
567c478bd9Sstevel@tonic-gate #define OPT_RO 0
577c478bd9Sstevel@tonic-gate SHOPT_RO,
587c478bd9Sstevel@tonic-gate #define OPT_RW 1
597c478bd9Sstevel@tonic-gate SHOPT_RW,
607c478bd9Sstevel@tonic-gate NULL
617c478bd9Sstevel@tonic-gate };
627c478bd9Sstevel@tonic-gate
637c478bd9Sstevel@tonic-gate /*
647c478bd9Sstevel@tonic-gate * Send current export list to a client
657c478bd9Sstevel@tonic-gate */
667c478bd9Sstevel@tonic-gate void
export(struct svc_req * rqstp)677c478bd9Sstevel@tonic-gate export(struct svc_req *rqstp)
687c478bd9Sstevel@tonic-gate {
697c478bd9Sstevel@tonic-gate SVCXPRT *transp;
707c478bd9Sstevel@tonic-gate struct exportnode *exportlist;
717c478bd9Sstevel@tonic-gate struct exportnode **tail;
727c478bd9Sstevel@tonic-gate struct groupnode *groups;
737c478bd9Sstevel@tonic-gate struct groupnode **grtail;
747c478bd9Sstevel@tonic-gate struct share *sh;
757c478bd9Sstevel@tonic-gate struct sh_list *shp;
767c478bd9Sstevel@tonic-gate char *gr, *p, *opts, *val, *lasts;
777c478bd9Sstevel@tonic-gate
787c478bd9Sstevel@tonic-gate int export_to_everyone;
797c478bd9Sstevel@tonic-gate
807c478bd9Sstevel@tonic-gate transp = rqstp->rq_xprt;
817c478bd9Sstevel@tonic-gate if (!svc_getargs(transp, xdr_void, NULL)) {
827c478bd9Sstevel@tonic-gate svcerr_decode(transp);
837c478bd9Sstevel@tonic-gate return;
847c478bd9Sstevel@tonic-gate }
857c478bd9Sstevel@tonic-gate
867c478bd9Sstevel@tonic-gate check_sharetab();
877c478bd9Sstevel@tonic-gate
887c478bd9Sstevel@tonic-gate exportlist = NULL;
897c478bd9Sstevel@tonic-gate tail = &exportlist;
907c478bd9Sstevel@tonic-gate
917c478bd9Sstevel@tonic-gate (void) rw_rdlock(&sharetab_lock);
927c478bd9Sstevel@tonic-gate
937c478bd9Sstevel@tonic-gate for (shp = share_list; shp; shp = shp->shl_next) {
947c478bd9Sstevel@tonic-gate
957c478bd9Sstevel@tonic-gate groups = NULL;
967c478bd9Sstevel@tonic-gate grtail = &groups;
977c478bd9Sstevel@tonic-gate
987c478bd9Sstevel@tonic-gate sh = shp->shl_sh;
997c478bd9Sstevel@tonic-gate
1007c478bd9Sstevel@tonic-gate /*
1017c478bd9Sstevel@tonic-gate * Check for "ro" or "rw" list without argument values. This
1027c478bd9Sstevel@tonic-gate * indicates export to everyone. Unfortunately, SunOS 4.x
1037c478bd9Sstevel@tonic-gate * automounter uses this, and it is indicated indirectly with
1047c478bd9Sstevel@tonic-gate * 'showmount -e'.
1057c478bd9Sstevel@tonic-gate *
1067c478bd9Sstevel@tonic-gate * If export_to_everyone is 1, then groups should be NULL to
1077c478bd9Sstevel@tonic-gate * indicate export to everyone.
1087c478bd9Sstevel@tonic-gate */
1097c478bd9Sstevel@tonic-gate
1107c478bd9Sstevel@tonic-gate opts = strdup(sh->sh_opts);
1117c478bd9Sstevel@tonic-gate p = opts;
1127c478bd9Sstevel@tonic-gate
1137c478bd9Sstevel@tonic-gate
1147c478bd9Sstevel@tonic-gate export_to_everyone = 0;
1157c478bd9Sstevel@tonic-gate while (*p) {
1167c478bd9Sstevel@tonic-gate switch (getsubopt(&p, optlist, &val)) {
1177c478bd9Sstevel@tonic-gate case OPT_RO:
1187c478bd9Sstevel@tonic-gate case OPT_RW:
1197c478bd9Sstevel@tonic-gate if (val == NULL)
1207c478bd9Sstevel@tonic-gate export_to_everyone = 1;
1217c478bd9Sstevel@tonic-gate break;
1227c478bd9Sstevel@tonic-gate }
1237c478bd9Sstevel@tonic-gate }
1247c478bd9Sstevel@tonic-gate
1257c478bd9Sstevel@tonic-gate free(opts);
1267c478bd9Sstevel@tonic-gate
1277c478bd9Sstevel@tonic-gate if (export_to_everyone == 0) {
1287c478bd9Sstevel@tonic-gate
1297c478bd9Sstevel@tonic-gate opts = strdup(sh->sh_opts);
1307c478bd9Sstevel@tonic-gate p = opts;
1317c478bd9Sstevel@tonic-gate
1327c478bd9Sstevel@tonic-gate /*
1337c478bd9Sstevel@tonic-gate * Just concatenate all the hostnames/groups
1347c478bd9Sstevel@tonic-gate * from the "ro" and "rw" lists for each flavor.
1357c478bd9Sstevel@tonic-gate * This list is rather meaningless now, but
1367c478bd9Sstevel@tonic-gate * that's what the protocol demands.
1377c478bd9Sstevel@tonic-gate */
1387c478bd9Sstevel@tonic-gate while (*p) {
1397c478bd9Sstevel@tonic-gate switch (getsubopt(&p, optlist, &val)) {
1407c478bd9Sstevel@tonic-gate case OPT_RO:
1417c478bd9Sstevel@tonic-gate case OPT_RW:
1427c478bd9Sstevel@tonic-gate
1437c478bd9Sstevel@tonic-gate while ((gr = strtok_r(val, ":", &lasts))
1447c478bd9Sstevel@tonic-gate != NULL) {
1457c478bd9Sstevel@tonic-gate val = NULL;
1467c478bd9Sstevel@tonic-gate grtail = newgroup(gr, grtail);
1477c478bd9Sstevel@tonic-gate }
1487c478bd9Sstevel@tonic-gate break;
1497c478bd9Sstevel@tonic-gate }
1507c478bd9Sstevel@tonic-gate }
1517c478bd9Sstevel@tonic-gate
1527c478bd9Sstevel@tonic-gate free(opts);
1537c478bd9Sstevel@tonic-gate }
1547c478bd9Sstevel@tonic-gate tail = newexport(sh->sh_path, groups, tail);
1557c478bd9Sstevel@tonic-gate }
1567c478bd9Sstevel@tonic-gate
1577c478bd9Sstevel@tonic-gate (void) rw_unlock(&sharetab_lock);
1587c478bd9Sstevel@tonic-gate
1597c478bd9Sstevel@tonic-gate errno = 0;
1607c478bd9Sstevel@tonic-gate if (!svc_sendreply(transp, xdr_exports, (char *)&exportlist))
1617c478bd9Sstevel@tonic-gate log_cant_reply(transp);
1627c478bd9Sstevel@tonic-gate
1637c478bd9Sstevel@tonic-gate freeexports(exportlist);
1647c478bd9Sstevel@tonic-gate }
1657c478bd9Sstevel@tonic-gate
1667c478bd9Sstevel@tonic-gate
1677c478bd9Sstevel@tonic-gate static void
freeexports(struct exportnode * ex)1687c478bd9Sstevel@tonic-gate freeexports(struct exportnode *ex)
1697c478bd9Sstevel@tonic-gate {
1707c478bd9Sstevel@tonic-gate struct groupnode *groups, *tmpgroups;
1717c478bd9Sstevel@tonic-gate struct exportnode *tmpex;
1727c478bd9Sstevel@tonic-gate
1737c478bd9Sstevel@tonic-gate while (ex) {
1747c478bd9Sstevel@tonic-gate groups = ex->ex_groups;
1757c478bd9Sstevel@tonic-gate while (groups) {
1767c478bd9Sstevel@tonic-gate tmpgroups = groups->gr_next;
1777c478bd9Sstevel@tonic-gate free(groups->gr_name);
1787c478bd9Sstevel@tonic-gate free(groups);
1797c478bd9Sstevel@tonic-gate groups = tmpgroups;
1807c478bd9Sstevel@tonic-gate }
1817c478bd9Sstevel@tonic-gate tmpex = ex->ex_next;
1827c478bd9Sstevel@tonic-gate free(ex->ex_dir);
1837c478bd9Sstevel@tonic-gate free(ex);
1847c478bd9Sstevel@tonic-gate ex = tmpex;
1857c478bd9Sstevel@tonic-gate }
1867c478bd9Sstevel@tonic-gate }
1877c478bd9Sstevel@tonic-gate
1887c478bd9Sstevel@tonic-gate
1897c478bd9Sstevel@tonic-gate static struct groupnode **
newgroup(char * grname,struct groupnode ** tail)1907c478bd9Sstevel@tonic-gate newgroup(char *grname, struct groupnode **tail)
1917c478bd9Sstevel@tonic-gate {
1927c478bd9Sstevel@tonic-gate struct groupnode *new;
1937c478bd9Sstevel@tonic-gate char *newname;
1947c478bd9Sstevel@tonic-gate
1957c478bd9Sstevel@tonic-gate new = exmalloc(sizeof (*new));
1967c478bd9Sstevel@tonic-gate newname = exmalloc(strlen(grname) + 1);
1977c478bd9Sstevel@tonic-gate (void) strcpy(newname, grname);
1987c478bd9Sstevel@tonic-gate
1997c478bd9Sstevel@tonic-gate new->gr_name = newname;
2007c478bd9Sstevel@tonic-gate new->gr_next = NULL;
2017c478bd9Sstevel@tonic-gate *tail = new;
2027c478bd9Sstevel@tonic-gate return (&new->gr_next);
2037c478bd9Sstevel@tonic-gate }
2047c478bd9Sstevel@tonic-gate
2057c478bd9Sstevel@tonic-gate
2067c478bd9Sstevel@tonic-gate static struct exportnode **
newexport(char * grname,struct groupnode * grplist,struct exportnode ** tail)2077c478bd9Sstevel@tonic-gate newexport(char *grname, struct groupnode *grplist, struct exportnode **tail)
2087c478bd9Sstevel@tonic-gate {
2097c478bd9Sstevel@tonic-gate struct exportnode *new;
2107c478bd9Sstevel@tonic-gate char *newname;
2117c478bd9Sstevel@tonic-gate
2127c478bd9Sstevel@tonic-gate new = exmalloc(sizeof (*new));
2137c478bd9Sstevel@tonic-gate newname = exmalloc(strlen(grname) + 1);
2147c478bd9Sstevel@tonic-gate (void) strcpy(newname, grname);
2157c478bd9Sstevel@tonic-gate
2167c478bd9Sstevel@tonic-gate new->ex_dir = newname;
2177c478bd9Sstevel@tonic-gate new->ex_groups = grplist;
2187c478bd9Sstevel@tonic-gate new->ex_next = NULL;
2197c478bd9Sstevel@tonic-gate *tail = new;
2207c478bd9Sstevel@tonic-gate return (&new->ex_next);
2217c478bd9Sstevel@tonic-gate }
222