1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1992-1995, by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <security/pam_appl.h>
30*0Sstevel@tonic-gate #include <string.h>
31*0Sstevel@tonic-gate #include <stdlib.h>
32*0Sstevel@tonic-gate #include <malloc.h>
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate #include "sample_utils.h"
35*0Sstevel@tonic-gate
36*0Sstevel@tonic-gate /* ******************************************************************** */
37*0Sstevel@tonic-gate /* */
38*0Sstevel@tonic-gate /* Utilities Functions */
39*0Sstevel@tonic-gate /* */
40*0Sstevel@tonic-gate /* ******************************************************************** */
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate /*
43*0Sstevel@tonic-gate * __free_msg():
44*0Sstevel@tonic-gate * free storage for messages used in the call back "pam_conv" functions
45*0Sstevel@tonic-gate */
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate void
__free_msg(num_msg,msg)48*0Sstevel@tonic-gate __free_msg(num_msg, msg)
49*0Sstevel@tonic-gate int num_msg;
50*0Sstevel@tonic-gate struct pam_message *msg;
51*0Sstevel@tonic-gate {
52*0Sstevel@tonic-gate int i;
53*0Sstevel@tonic-gate struct pam_message *m;
54*0Sstevel@tonic-gate
55*0Sstevel@tonic-gate if (msg) {
56*0Sstevel@tonic-gate m = msg;
57*0Sstevel@tonic-gate for (i = 0; i < num_msg; i++, m++) {
58*0Sstevel@tonic-gate if (m->msg)
59*0Sstevel@tonic-gate free(m->msg);
60*0Sstevel@tonic-gate }
61*0Sstevel@tonic-gate free(msg);
62*0Sstevel@tonic-gate }
63*0Sstevel@tonic-gate }
64*0Sstevel@tonic-gate
65*0Sstevel@tonic-gate /*
66*0Sstevel@tonic-gate * __free_resp():
67*0Sstevel@tonic-gate * free storage for responses used in the call back "pam_conv" functions
68*0Sstevel@tonic-gate */
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate void
__free_resp(num_msg,resp)71*0Sstevel@tonic-gate __free_resp(num_msg, resp)
72*0Sstevel@tonic-gate int num_msg;
73*0Sstevel@tonic-gate struct pam_response *resp;
74*0Sstevel@tonic-gate {
75*0Sstevel@tonic-gate int i;
76*0Sstevel@tonic-gate struct pam_response *r;
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate if (resp) {
79*0Sstevel@tonic-gate r = resp;
80*0Sstevel@tonic-gate for (i = 0; i < num_msg; i++, r++) {
81*0Sstevel@tonic-gate if (r->resp)
82*0Sstevel@tonic-gate free(r->resp);
83*0Sstevel@tonic-gate }
84*0Sstevel@tonic-gate free(resp);
85*0Sstevel@tonic-gate }
86*0Sstevel@tonic-gate }
87*0Sstevel@tonic-gate
88*0Sstevel@tonic-gate /*
89*0Sstevel@tonic-gate * __display_errmsg():
90*0Sstevel@tonic-gate * display error message by calling the call back functions
91*0Sstevel@tonic-gate * provided by the application through "pam_conv" structure
92*0Sstevel@tonic-gate */
93*0Sstevel@tonic-gate
94*0Sstevel@tonic-gate int
95*0Sstevel@tonic-gate __display_errmsg(conv_funp, num_msg, messages, conv_apdp)
96*0Sstevel@tonic-gate int (*conv_funp)();
97*0Sstevel@tonic-gate int num_msg;
98*0Sstevel@tonic-gate char messages[PAM_MAX_NUM_MSG][PAM_MAX_MSG_SIZE];
99*0Sstevel@tonic-gate void *conv_apdp;
100*0Sstevel@tonic-gate {
101*0Sstevel@tonic-gate struct pam_message *msg;
102*0Sstevel@tonic-gate struct pam_message *m;
103*0Sstevel@tonic-gate struct pam_response *resp;
104*0Sstevel@tonic-gate int i;
105*0Sstevel@tonic-gate int k;
106*0Sstevel@tonic-gate int retcode;
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate msg = (struct pam_message *)calloc(num_msg,
109*0Sstevel@tonic-gate sizeof (struct pam_message));
110*0Sstevel@tonic-gate if (msg == NULL) {
111*0Sstevel@tonic-gate return (PAM_CONV_ERR);
112*0Sstevel@tonic-gate }
113*0Sstevel@tonic-gate m = msg;
114*0Sstevel@tonic-gate
115*0Sstevel@tonic-gate i = 0;
116*0Sstevel@tonic-gate k = num_msg;
117*0Sstevel@tonic-gate resp = NULL;
118*0Sstevel@tonic-gate while (k--) {
119*0Sstevel@tonic-gate /*
120*0Sstevel@tonic-gate * fill out the pam_message structure to display error message
121*0Sstevel@tonic-gate */
122*0Sstevel@tonic-gate m->msg_style = PAM_ERROR_MSG;
123*0Sstevel@tonic-gate m->msg = (char *)malloc(PAM_MAX_MSG_SIZE);
124*0Sstevel@tonic-gate if (m->msg != NULL)
125*0Sstevel@tonic-gate (void) strcpy(m->msg, (const char *)messages[i]);
126*0Sstevel@tonic-gate else
127*0Sstevel@tonic-gate continue;
128*0Sstevel@tonic-gate m++;
129*0Sstevel@tonic-gate i++;
130*0Sstevel@tonic-gate }
131*0Sstevel@tonic-gate
132*0Sstevel@tonic-gate /*
133*0Sstevel@tonic-gate * Call conv function to display the message,
134*0Sstevel@tonic-gate * ignoring return value for now
135*0Sstevel@tonic-gate */
136*0Sstevel@tonic-gate retcode = conv_funp(num_msg, &msg, &resp, conv_apdp);
137*0Sstevel@tonic-gate __free_msg(num_msg, msg);
138*0Sstevel@tonic-gate __free_resp(num_msg, resp);
139*0Sstevel@tonic-gate return (retcode);
140*0Sstevel@tonic-gate }
141*0Sstevel@tonic-gate
142*0Sstevel@tonic-gate /*
143*0Sstevel@tonic-gate * __get_authtok():
144*0Sstevel@tonic-gate * get authentication token by calling the call back functions
145*0Sstevel@tonic-gate * provided by the application through "pam_conv" structure
146*0Sstevel@tonic-gate */
147*0Sstevel@tonic-gate
148*0Sstevel@tonic-gate int
149*0Sstevel@tonic-gate __get_authtok(conv_funp, num_msg, messages, conv_apdp, ret_respp)
150*0Sstevel@tonic-gate int (*conv_funp)();
151*0Sstevel@tonic-gate int num_msg;
152*0Sstevel@tonic-gate char messages[PAM_MAX_NUM_MSG][PAM_MAX_MSG_SIZE];
153*0Sstevel@tonic-gate void *conv_apdp;
154*0Sstevel@tonic-gate struct pam_response **ret_respp;
155*0Sstevel@tonic-gate {
156*0Sstevel@tonic-gate struct pam_message *msg;
157*0Sstevel@tonic-gate struct pam_message *m;
158*0Sstevel@tonic-gate int i;
159*0Sstevel@tonic-gate int k;
160*0Sstevel@tonic-gate int retcode;
161*0Sstevel@tonic-gate
162*0Sstevel@tonic-gate i = 0;
163*0Sstevel@tonic-gate k = num_msg;
164*0Sstevel@tonic-gate
165*0Sstevel@tonic-gate msg = (struct pam_message *)calloc(num_msg,
166*0Sstevel@tonic-gate sizeof (struct pam_message));
167*0Sstevel@tonic-gate if (msg == NULL) {
168*0Sstevel@tonic-gate return (PAM_CONV_ERR);
169*0Sstevel@tonic-gate }
170*0Sstevel@tonic-gate m = msg;
171*0Sstevel@tonic-gate
172*0Sstevel@tonic-gate while (k--) {
173*0Sstevel@tonic-gate /*
174*0Sstevel@tonic-gate * fill out the message structure to display error message
175*0Sstevel@tonic-gate */
176*0Sstevel@tonic-gate m->msg_style = PAM_PROMPT_ECHO_OFF;
177*0Sstevel@tonic-gate m->msg = (char *)malloc(PAM_MAX_MSG_SIZE);
178*0Sstevel@tonic-gate if (m->msg != NULL)
179*0Sstevel@tonic-gate (void) strcpy(m->msg, (char *)messages[i]);
180*0Sstevel@tonic-gate else
181*0Sstevel@tonic-gate continue;
182*0Sstevel@tonic-gate m++;
183*0Sstevel@tonic-gate i++;
184*0Sstevel@tonic-gate }
185*0Sstevel@tonic-gate
186*0Sstevel@tonic-gate /*
187*0Sstevel@tonic-gate * Call conv function to display the prompt,
188*0Sstevel@tonic-gate * ignoring return value for now
189*0Sstevel@tonic-gate */
190*0Sstevel@tonic-gate retcode = conv_funp(num_msg, &msg, ret_respp, conv_apdp);
191*0Sstevel@tonic-gate __free_msg(num_msg, msg);
192*0Sstevel@tonic-gate return (retcode);
193*0Sstevel@tonic-gate }
194