1f65b2180SDag-Erling Smørgrav /*-
25e53a4f9SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause
35e53a4f9SPedro F. Giffuni *
4caeab58cSDag-Erling Smørgrav * Copyright (c) 2001,2003 Networks Associates Technology, Inc.
5f65b2180SDag-Erling Smørgrav * All rights reserved.
6f65b2180SDag-Erling Smørgrav *
7f65b2180SDag-Erling Smørgrav * This software was developed for the FreeBSD Project by ThinkSec AS and
8f65b2180SDag-Erling Smørgrav * NAI Labs, the Security Research Division of Network Associates, Inc.
9f65b2180SDag-Erling Smørgrav * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the
10f65b2180SDag-Erling Smørgrav * DARPA CHATS research program.
11f65b2180SDag-Erling Smørgrav *
12f65b2180SDag-Erling Smørgrav * Redistribution and use in source and binary forms, with or without
13f65b2180SDag-Erling Smørgrav * modification, are permitted provided that the following conditions
14f65b2180SDag-Erling Smørgrav * are met:
15f65b2180SDag-Erling Smørgrav * 1. Redistributions of source code must retain the above copyright
16f65b2180SDag-Erling Smørgrav * notice, this list of conditions and the following disclaimer.
17f65b2180SDag-Erling Smørgrav * 2. Redistributions in binary form must reproduce the above copyright
18f65b2180SDag-Erling Smørgrav * notice, this list of conditions and the following disclaimer in the
19f65b2180SDag-Erling Smørgrav * documentation and/or other materials provided with the distribution.
20f65b2180SDag-Erling Smørgrav * 3. The name of the author may not be used to endorse or promote
21f65b2180SDag-Erling Smørgrav * products derived from this software without specific prior written
22f65b2180SDag-Erling Smørgrav * permission.
23f65b2180SDag-Erling Smørgrav *
24f65b2180SDag-Erling Smørgrav * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
25f65b2180SDag-Erling Smørgrav * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26f65b2180SDag-Erling Smørgrav * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27f65b2180SDag-Erling Smørgrav * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
28f65b2180SDag-Erling Smørgrav * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29f65b2180SDag-Erling Smørgrav * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30f65b2180SDag-Erling Smørgrav * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31f65b2180SDag-Erling Smørgrav * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32f65b2180SDag-Erling Smørgrav * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33f65b2180SDag-Erling Smørgrav * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34f65b2180SDag-Erling Smørgrav * SUCH DAMAGE.
35f65b2180SDag-Erling Smørgrav */
36f65b2180SDag-Erling Smørgrav
37f65b2180SDag-Erling Smørgrav #include <sys/cdefs.h>
38f65b2180SDag-Erling Smørgrav #include <stdio.h>
39f65b2180SDag-Erling Smørgrav #include <stdlib.h>
40f65b2180SDag-Erling Smørgrav #include <string.h>
41f65b2180SDag-Erling Smørgrav
42f65b2180SDag-Erling Smørgrav #include <security/pam_appl.h>
43f65b2180SDag-Erling Smørgrav #include <security/pam_modules.h>
44f65b2180SDag-Erling Smørgrav #include <security/openpam.h>
45f65b2180SDag-Erling Smørgrav
46f65b2180SDag-Erling Smørgrav static int
_pam_echo(pam_handle_t * pamh,int flags,int argc,const char * argv[])47f65b2180SDag-Erling Smørgrav _pam_echo(pam_handle_t *pamh, int flags,
48f65b2180SDag-Erling Smørgrav int argc, const char *argv[])
49f65b2180SDag-Erling Smørgrav {
50caeab58cSDag-Erling Smørgrav char msg[PAM_MAX_MSG_SIZE];
5191e93869SDag-Erling Smørgrav const void *str;
5291e93869SDag-Erling Smørgrav const char *p, *q;
53caeab58cSDag-Erling Smørgrav int err, i, item;
54f65b2180SDag-Erling Smørgrav size_t len;
55f65b2180SDag-Erling Smørgrav
56f65b2180SDag-Erling Smørgrav if (flags & PAM_SILENT)
57f65b2180SDag-Erling Smørgrav return (PAM_SUCCESS);
58caeab58cSDag-Erling Smørgrav for (i = 0, len = 0; i < argc && len < sizeof(msg) - 1; ++i) {
59caeab58cSDag-Erling Smørgrav if (i > 0)
60caeab58cSDag-Erling Smørgrav msg[len++] = ' ';
61caeab58cSDag-Erling Smørgrav for (p = argv[i]; *p != '\0' && len < sizeof(msg) - 1; ++p) {
62caeab58cSDag-Erling Smørgrav if (*p != '%' || p[1] == '\0') {
63caeab58cSDag-Erling Smørgrav msg[len++] = *p;
64caeab58cSDag-Erling Smørgrav continue;
65caeab58cSDag-Erling Smørgrav }
66caeab58cSDag-Erling Smørgrav switch (*++p) {
67caeab58cSDag-Erling Smørgrav case 'H':
68caeab58cSDag-Erling Smørgrav item = PAM_RHOST;
69caeab58cSDag-Erling Smørgrav break;
70caeab58cSDag-Erling Smørgrav case 'h':
71caeab58cSDag-Erling Smørgrav /* not implemented */
72caeab58cSDag-Erling Smørgrav item = -1;
73caeab58cSDag-Erling Smørgrav break;
74caeab58cSDag-Erling Smørgrav case 's':
75caeab58cSDag-Erling Smørgrav item = PAM_SERVICE;
76caeab58cSDag-Erling Smørgrav break;
77caeab58cSDag-Erling Smørgrav case 't':
78caeab58cSDag-Erling Smørgrav item = PAM_TTY;
79caeab58cSDag-Erling Smørgrav break;
80caeab58cSDag-Erling Smørgrav case 'U':
81caeab58cSDag-Erling Smørgrav item = PAM_RUSER;
82caeab58cSDag-Erling Smørgrav break;
83caeab58cSDag-Erling Smørgrav case 'u':
84caeab58cSDag-Erling Smørgrav item = PAM_USER;
85caeab58cSDag-Erling Smørgrav break;
86caeab58cSDag-Erling Smørgrav default:
87caeab58cSDag-Erling Smørgrav item = -1;
88caeab58cSDag-Erling Smørgrav msg[len++] = *p;
89caeab58cSDag-Erling Smørgrav break;
90caeab58cSDag-Erling Smørgrav }
91caeab58cSDag-Erling Smørgrav if (item == -1)
92caeab58cSDag-Erling Smørgrav continue;
9391e93869SDag-Erling Smørgrav err = pam_get_item(pamh, item, &str);
94caeab58cSDag-Erling Smørgrav if (err != PAM_SUCCESS)
95caeab58cSDag-Erling Smørgrav return (err);
96caeab58cSDag-Erling Smørgrav if (str == NULL)
97caeab58cSDag-Erling Smørgrav str = "(null)";
98caeab58cSDag-Erling Smørgrav for (q = str; *q != '\0' && len < sizeof(msg) - 1; ++q)
99caeab58cSDag-Erling Smørgrav msg[len++] = *q;
100caeab58cSDag-Erling Smørgrav }
101caeab58cSDag-Erling Smørgrav }
102caeab58cSDag-Erling Smørgrav msg[len] = '\0';
103caeab58cSDag-Erling Smørgrav return (pam_info(pamh, "%s", msg));
104f65b2180SDag-Erling Smørgrav }
105f65b2180SDag-Erling Smørgrav
106f65b2180SDag-Erling Smørgrav PAM_EXTERN int
pam_sm_authenticate(pam_handle_t * pamh,int flags,int argc,const char * argv[])107f65b2180SDag-Erling Smørgrav pam_sm_authenticate(pam_handle_t *pamh, int flags,
108f65b2180SDag-Erling Smørgrav int argc, const char *argv[])
109f65b2180SDag-Erling Smørgrav {
110f65b2180SDag-Erling Smørgrav
111f65b2180SDag-Erling Smørgrav return (_pam_echo(pamh, flags, argc, argv));
112f65b2180SDag-Erling Smørgrav }
113f65b2180SDag-Erling Smørgrav
114f65b2180SDag-Erling Smørgrav PAM_EXTERN int
pam_sm_setcred(pam_handle_t * pamh __unused,int flags __unused,int argc __unused,const char * argv[]__unused)1159e2409d3SDag-Erling Smørgrav pam_sm_setcred(pam_handle_t *pamh __unused, int flags __unused,
1169e2409d3SDag-Erling Smørgrav int argc __unused, const char *argv[] __unused)
117f65b2180SDag-Erling Smørgrav {
118f65b2180SDag-Erling Smørgrav
1199e2409d3SDag-Erling Smørgrav return (PAM_SUCCESS);
120f65b2180SDag-Erling Smørgrav }
121f65b2180SDag-Erling Smørgrav
122f65b2180SDag-Erling Smørgrav PAM_EXTERN int
pam_sm_acct_mgmt(pam_handle_t * pamh,int flags,int argc,const char * argv[])123f65b2180SDag-Erling Smørgrav pam_sm_acct_mgmt(pam_handle_t *pamh, int flags,
124f65b2180SDag-Erling Smørgrav int argc, const char *argv[])
125f65b2180SDag-Erling Smørgrav {
126f65b2180SDag-Erling Smørgrav
127f65b2180SDag-Erling Smørgrav return (_pam_echo(pamh, flags, argc, argv));
128f65b2180SDag-Erling Smørgrav }
129f65b2180SDag-Erling Smørgrav
130f65b2180SDag-Erling Smørgrav PAM_EXTERN int
pam_sm_open_session(pam_handle_t * pamh,int flags,int argc,const char * argv[])131f65b2180SDag-Erling Smørgrav pam_sm_open_session(pam_handle_t *pamh, int flags,
132f65b2180SDag-Erling Smørgrav int argc, const char *argv[])
133f65b2180SDag-Erling Smørgrav {
134f65b2180SDag-Erling Smørgrav
135f65b2180SDag-Erling Smørgrav return (_pam_echo(pamh, flags, argc, argv));
136f65b2180SDag-Erling Smørgrav }
137f65b2180SDag-Erling Smørgrav
138f65b2180SDag-Erling Smørgrav PAM_EXTERN int
pam_sm_close_session(pam_handle_t * pamh,int flags,int argc,const char * argv[])139f65b2180SDag-Erling Smørgrav pam_sm_close_session(pam_handle_t *pamh, int flags,
140f65b2180SDag-Erling Smørgrav int argc, const char *argv[])
141f65b2180SDag-Erling Smørgrav {
142f65b2180SDag-Erling Smørgrav
143f65b2180SDag-Erling Smørgrav return (_pam_echo(pamh, flags, argc, argv));
144f65b2180SDag-Erling Smørgrav }
145f65b2180SDag-Erling Smørgrav
146f65b2180SDag-Erling Smørgrav PAM_EXTERN int
pam_sm_chauthtok(pam_handle_t * pamh,int flags,int argc,const char * argv[])147f65b2180SDag-Erling Smørgrav pam_sm_chauthtok(pam_handle_t *pamh, int flags,
148f65b2180SDag-Erling Smørgrav int argc, const char *argv[])
149f65b2180SDag-Erling Smørgrav {
150f65b2180SDag-Erling Smørgrav
1519e2409d3SDag-Erling Smørgrav if (flags & PAM_PRELIM_CHECK)
1529e2409d3SDag-Erling Smørgrav return (PAM_SUCCESS);
153f65b2180SDag-Erling Smørgrav return (_pam_echo(pamh, flags, argc, argv));
154f65b2180SDag-Erling Smørgrav }
155f65b2180SDag-Erling Smørgrav
156f65b2180SDag-Erling Smørgrav PAM_MODULE_ENTRY("pam_echo");
157