2 * Copyright (c) 2002 Networks Associates Technology, Inc.
5 * This software was developed for the FreeBSD Project by ThinkSec AS and
6 * NAI Labs, the Security Research Division of Network Associates, Inc.
7 * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
8 * DARPA CHATS research program.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 3. The name of the author may not be used to endorse or promote
19 * products derived from this software without specific prior written
22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
37 #include <sys/types.h>
38 #include <sys/socket.h>
39 #include <netinet/in.h>
43 #include <netconfig.h>
50 #include <rpcsvc/ypclnt.h>
51 #include <rpcsvc/yppasswd.h>
54 #include "yppasswd_private.h"
56 static int yppasswd_remote(ypclnt_t *, const struct passwd *, const char *);
57 static int yppasswd_local(ypclnt_t *, const struct passwd *, const char *);
60 ypclnt_passwd(ypclnt_t *ypclnt, const struct passwd *pwd, const char *passwd)
62 struct addrinfo hints, *res;
65 /* check that rpc.yppasswdd is running */
66 if (getrpcport(ypclnt->server, YPPASSWDPROG,
67 YPPASSWDPROC_UPDATE, IPPROTO_UDP) == 0) {
68 ypclnt_error(ypclnt, __func__, "no rpc.yppasswdd on server");
72 /* if we're not root, use remote method */
76 /* try to determine if we are the server */
77 memset(&hints, 0, sizeof(hints));
78 hints.ai_family = AF_UNSPEC;
79 hints.ai_socktype = SOCK_STREAM;
80 hints.ai_protocol = 0;
81 if (getaddrinfo(ypclnt->server, NULL, &hints, &res) != 0)
83 sd = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
88 if (bind(sd, res->ai_addr, res->ai_addrlen) == -1) {
95 YPCLNT_DEBUG("using local update method");
96 return (yppasswd_local(ypclnt, pwd, passwd));
98 YPCLNT_DEBUG("using remote update method");
99 return (yppasswd_remote(ypclnt, pwd, passwd));
103 * yppasswd_remote and yppasswd_local are quite similar but still
104 * sufficiently different that merging them into one makes the code
105 * significantly less readable, IMHO, so we keep them separate.
109 yppasswd_local(ypclnt_t *ypclnt, const struct passwd *pwd, const char *passwd)
111 struct master_yppasswd yppwd;
112 struct rpc_err rpcerr;
113 struct netconfig *nc = NULL;
117 /* fill the master_yppasswd structure */
118 memset(&yppwd, 0, sizeof yppwd);
119 yppwd.newpw.pw_uid = pwd->pw_uid;
120 yppwd.newpw.pw_gid = pwd->pw_gid;
121 yppwd.newpw.pw_change = pwd->pw_change;
122 yppwd.newpw.pw_expire = pwd->pw_expire;
123 yppwd.newpw.pw_fields = pwd->pw_fields;
124 if ((yppwd.newpw.pw_name = strdup(pwd->pw_name)) == NULL ||
125 (yppwd.newpw.pw_passwd = strdup(pwd->pw_passwd)) == NULL ||
126 (yppwd.newpw.pw_class = strdup(pwd->pw_class)) == NULL ||
127 (yppwd.newpw.pw_gecos = strdup(pwd->pw_gecos)) == NULL ||
128 (yppwd.newpw.pw_dir = strdup(pwd->pw_dir)) == NULL ||
129 (yppwd.newpw.pw_shell = strdup(pwd->pw_shell)) == NULL ||
130 (yppwd.oldpass = strdup(passwd)) == NULL) {
131 ypclnt_error(ypclnt, __func__, strerror(errno));
136 /* connect to rpc.yppasswdd */
137 nc = getnetconfigent("unix");
138 clnt = clnt_tp_create(ypclnt->server, YPPASSWDPROG, YPPASSWDVERS, nc);
140 ypclnt_error(ypclnt, __func__,
141 "failed to connect to rpc.yppasswdd: %s",
142 clnt_spcreateerror(ypclnt->server));
146 clnt->cl_auth = authunix_create_default();
148 /* request the update */
149 result = yppasswdproc_update_master_1(&yppwd, clnt);
151 /* check for RPC errors */
152 clnt_geterr(clnt, &rpcerr);
153 if (rpcerr.re_status != RPC_SUCCESS) {
154 ypclnt_error(ypclnt, __func__,
155 "NIS password update failed: %s",
156 clnt_sperror(clnt, ypclnt->server));
161 /* check the result of the update */
162 if (result == NULL || *result != 0) {
163 ypclnt_error(ypclnt, __func__,
164 "NIS password update failed");
165 /* XXX how do we get more details? */
170 ypclnt_error(ypclnt, NULL, NULL);
175 auth_destroy(clnt->cl_auth);
179 freenetconfigent(nc);
180 free(yppwd.newpw.pw_name);
181 free(yppwd.newpw.pw_passwd);
182 free(yppwd.newpw.pw_class);
183 free(yppwd.newpw.pw_gecos);
184 free(yppwd.newpw.pw_dir);
185 free(yppwd.newpw.pw_shell);
186 if (yppwd.oldpass != NULL) {
187 memset(yppwd.oldpass, 0, strlen(yppwd.oldpass));
194 yppasswd_remote(ypclnt_t *ypclnt, const struct passwd *pwd, const char *passwd)
196 struct yppasswd yppwd;
197 struct rpc_err rpcerr;
201 /* fill the yppasswd structure */
202 memset(&yppwd, 0, sizeof yppwd);
203 yppwd.newpw.pw_uid = pwd->pw_uid;
204 yppwd.newpw.pw_gid = pwd->pw_gid;
205 if ((yppwd.newpw.pw_name = strdup(pwd->pw_name)) == NULL ||
206 (yppwd.newpw.pw_passwd = strdup(pwd->pw_passwd)) == NULL ||
207 (yppwd.newpw.pw_gecos = strdup(pwd->pw_gecos)) == NULL ||
208 (yppwd.newpw.pw_dir = strdup(pwd->pw_dir)) == NULL ||
209 (yppwd.newpw.pw_shell = strdup(pwd->pw_shell)) == NULL ||
210 (yppwd.oldpass = strdup(passwd)) == NULL) {
211 ypclnt_error(ypclnt, __func__, strerror(errno));
216 /* connect to rpc.yppasswdd */
217 clnt = clnt_create(ypclnt->server, YPPASSWDPROG, YPPASSWDVERS, "udp");
219 ypclnt_error(ypclnt, __func__,
220 "failed to connect to rpc.yppasswdd: %s",
221 clnt_spcreateerror(ypclnt->server));
225 clnt->cl_auth = authunix_create_default();
227 /* request the update */
228 result = yppasswdproc_update_1(&yppwd, clnt);
230 /* check for RPC errors */
231 clnt_geterr(clnt, &rpcerr);
232 if (rpcerr.re_status != RPC_SUCCESS) {
233 ypclnt_error(ypclnt, __func__,
234 "NIS password update failed: %s",
235 clnt_sperror(clnt, ypclnt->server));
240 /* check the result of the update */
241 if (result == NULL || *result != 0) {
242 ypclnt_error(ypclnt, __func__,
243 "NIS password update failed");
244 /* XXX how do we get more details? */
249 ypclnt_error(ypclnt, NULL, NULL);
254 auth_destroy(clnt->cl_auth);
257 free(yppwd.newpw.pw_name);
258 free(yppwd.newpw.pw_passwd);
259 free(yppwd.newpw.pw_gecos);
260 free(yppwd.newpw.pw_dir);
261 free(yppwd.newpw.pw_shell);
262 if (yppwd.oldpass != NULL) {
263 memset(yppwd.oldpass, 0, strlen(yppwd.oldpass));