GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: libexec/login_radius/login_radius.c Lines: 0 70 0.0 %
Date: 2017-11-07 Branches: 0 69 0.0 %

Line Branch Exec Source
1
/*	$OpenBSD: login_radius.c,v 1.9 2017/04/27 20:55:52 millert Exp $	*/
2
3
/*-
4
 * Copyright (c) 1996, 1997 Berkeley Software Design, Inc. All rights reserved.
5
 *
6
 * Redistribution and use in source and binary forms, with or without
7
 * modification, are permitted provided that the following conditions
8
 * are met:
9
 * 1. Redistributions of source code must retain the above copyright
10
 *    notice, this list of conditions and the following disclaimer.
11
 * 2. Redistributions in binary form must reproduce the above copyright
12
 *    notice, this list of conditions and the following disclaimer in the
13
 *    documentation and/or other materials provided with the distribution.
14
 * 3. All advertising materials mentioning features or use of this software
15
 *    must display the following acknowledgement:
16
 *      This product includes software developed by Berkeley Software Design,
17
 *      Inc.
18
 * 4. The name of Berkeley Software Design, Inc.  may not be used to endorse
19
 *    or promote products derived from this software without specific prior
20
 *    written permission.
21
 *
22
 * THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``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 BERKELEY SOFTWARE DESIGN, INC. 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
32
 * SUCH DAMAGE.
33
 *
34
 *	BSDI $From: login_radius.c,v 1.4 1998/04/14 00:39:02 prb Exp $
35
 */
36
/*
37
 * Copyright(c) 1996 by tfm associates.
38
 * All rights reserved.
39
 *
40
 * tfm associates
41
 * P.O. Box 2086
42
 * Eugene OR 97402-0031
43
 *
44
 * Redistribution and use in source and binary forms, with or without
45
 * modification, are permitted provided that the following conditions
46
 * are met:
47
 * 1. Redistributions of source code must retain the above copyright
48
 *    notice, this list of conditions and the following disclaimer.
49
 * 2. Redistributions in binary form must reproduce the above copyright
50
 *    notice, this list of conditions and the following disclaimer in the
51
 *    documentation and/or other materials provided with the distribution.
52
 * 3. The name of tfm associates may not be used to endorse or promote
53
 *    products derived from this software without specific prior written
54
 *    permission.
55
 *
56
 * THIS SOFTWARE IS PROVIDED BY TFM ASSOC``AS IS'' AND ANY EXPRESS OR
57
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
58
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
59
 * IN NO EVENT SHALL TFM ASSOCIATES BE LIABLE FOR ANY DIRECT, INDIRECT,
60
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
61
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
62
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
63
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
64
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
65
 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66
 */
67
68
#include <sys/types.h>
69
#include <netinet/in.h>
70
71
#include <ctype.h>
72
#include <err.h>
73
#include <login_cap.h>
74
#include <pwd.h>
75
#include <stdio.h>
76
#include <stdlib.h>
77
#include <string.h>
78
#include <syslog.h>
79
#include <unistd.h>
80
#include <bsd_auth.h>
81
#include "login_radius.h"
82
83
static int cleanstring(char *);
84
85
int
86
main(int argc, char **argv)
87
{
88
	FILE *back;
89
	char challenge[1024];
90
	char *class, *service, *style, *username, *password, *emsg;
91
	int c, n;
92
	extern char *__progname;
93
94
	if (pledge("stdio rpath wpath inet dns tty", NULL) == -1) {
95
		syslog(LOG_AUTH|LOG_ERR, "pledge: %m");
96
		exit(1);
97
	}
98
	back = NULL;
99
	password = class = service = NULL;
100
101
	/*
102
	 * Usage: login_xxx [-s service] [-v var] user [class]
103
	 */
104
	while ((c = getopt(argc, argv, "ds:v:")) != -1)
105
		switch (c) {
106
		case 'd':
107
			back = stdout;
108
			break;
109
		case 'v':
110
			break;
111
		case 's':       /* service */
112
			service = optarg;
113
			if (strcmp(service, "login") != 0 &&
114
			    strcmp(service, "challenge") != 0 &&
115
			    strcmp(service, "response") != 0)
116
				errx(1, "%s not supported", service);
117
			break;
118
		default:
119
			syslog(LOG_ERR, "usage error");
120
			exit(1);
121
		}
122
123
	if (service == NULL)
124
		service = LOGIN_DEFSERVICE;
125
126
	switch (argc - optind) {
127
	case 2:
128
		class = argv[optind + 1];
129
	case 1:
130
		username = argv[optind];
131
		break;
132
	default:
133
		syslog(LOG_ERR, "usage error");
134
		exit(1);
135
	}
136
137
	if ((style = strrchr(__progname, '/')))
138
		++style;
139
	else
140
		style = __progname;
141
142
	if (strncmp(style, "login_", 6) == 0)
143
		style += 6;
144
145
	if (!cleanstring(style))
146
		errx(1, "style contains non-printables");
147
	if (!cleanstring(username))
148
		errx(1, "username contains non-printables");
149
	if (service && !cleanstring(service))
150
		errx(1, "service contains non-printables");
151
	if (class && !cleanstring(class))
152
		errx(1, "class contains non-printables");
153
154
	/*
155
	 * Filedes 3 is the back channel, where we send back results.
156
	 */
157
        if (back == NULL && (back = fdopen(3, "a")) == NULL)  {
158
                syslog(LOG_ERR, "reopening back channel");
159
                exit(1);
160
        }
161
162
	memset(challenge, 0, sizeof(challenge));
163
164
	if (strcmp(service, "response") == 0) {
165
		c = -1;
166
		n = 0;
167
		while (++c < sizeof(challenge) &&
168
		    read(3, &challenge[c], 1) == 1) {
169
			if (challenge[c] == '\0' && ++n == 2)
170
				break;
171
			if (challenge[c] == '\0' && n == 1)
172
				password = challenge + c + 1;
173
		}
174
		if (n < 2) {
175
			syslog(LOG_ERR, "protocol error on back channel");
176
			exit(1);
177
		}
178
	}
179
180
	emsg = NULL;
181
182
	c = raddauth(username, class, style,
183
	    strcmp(service, "login") ? challenge : NULL, password, &emsg);
184
185
	if (c == 0) {
186
		if (*challenge == '\0')
187
			(void)fprintf(back, BI_AUTH "\n");
188
		else {
189
			(void)fprintf(back, BI_VALUE " challenge %s\n",
190
			    auth_mkvalue(challenge));
191
			(void)fprintf(back, BI_CHALLENGE "\n");
192
		}
193
		exit(0);
194
	}
195
	if (emsg && strcmp(service, "login") == 0)
196
		(void)fprintf(stderr, "%s\n", emsg);
197
	else if (emsg)
198
		(void)fprintf(back, "value errormsg %s\n", auth_mkvalue(emsg));
199
	if (strcmp(service, "challenge") == 0) {
200
		(void)fprintf(back, BI_SILENT "\n");
201
		exit(0);
202
	}
203
	(void)fprintf(back, BI_REJECT "\n");
204
	exit(1);
205
}
206
207
static int
208
cleanstring(char *s)
209
{
210
211
	while (isgraph((unsigned char)*s) && *s != '\\')
212
		++s;
213
	return(*s == '\0' ? 1 : 0);
214
}