uu_server.c revision 178825 
1/*
2 * Copyright (c) 1997 - 2000, 2007 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * 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 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "test_locl.h"
35RCSID("$Id: uu_server.c 20880 2007-06-04 16:55:00Z lha $");
36
37krb5_context context;
38
39static int
40proto (int sock, const char *service)
41{
42    struct sockaddr_in remote, local;
43    socklen_t addrlen;
44    krb5_address remote_addr, local_addr;
45    krb5_ccache ccache;
46    krb5_auth_context auth_context;
47    krb5_error_code status;
48    krb5_data packet;
49    krb5_data data;
50    krb5_data client_name;
51    krb5_creds in_creds, *out_creds;
52
53    addrlen = sizeof(local);
54    if (getsockname (sock, (struct sockaddr *)&local, &addrlen) < 0
55	|| addrlen != sizeof(local))
56	err (1, "getsockname)");
57
58    addrlen = sizeof(remote);
59    if (getpeername (sock, (struct sockaddr *)&remote, &addrlen) < 0
60	|| addrlen != sizeof(remote))
61	err (1, "getpeername");
62
63    status = krb5_auth_con_init (context, &auth_context);
64    if (status)
65	errx (1, "krb5_auth_con_init: %s",
66	      krb5_get_err_text(context, status));
67
68    local_addr.addr_type = AF_INET;
69    local_addr.address.length = sizeof(local.sin_addr);
70    local_addr.address.data   = &local.sin_addr;
71
72    remote_addr.addr_type = AF_INET;
73    remote_addr.address.length = sizeof(remote.sin_addr);
74    remote_addr.address.data   = &remote.sin_addr;
75
76    status = krb5_auth_con_setaddrs (context,
77				     auth_context,
78				     &local_addr,
79				     &remote_addr);
80    if (status)
81	errx (1, "krb5_auth_con_setaddr: %s",
82	      krb5_get_err_text(context, status));
83
84    status = krb5_read_message(context, &sock, &client_name);
85    if(status)
86	krb5_err(context, 1, status, "krb5_read_message");
87
88    memset(&in_creds, 0, sizeof(in_creds));
89    status = krb5_cc_default(context, &ccache);
90    status = krb5_cc_get_principal(context, ccache, &in_creds.client);
91
92    status = krb5_read_message(context, &sock, &in_creds.second_ticket);
93    if(status)
94	krb5_err(context, 1, status, "krb5_read_message");
95
96    status = krb5_parse_name(context, client_name.data, &in_creds.server);
97    if(status)
98	krb5_err(context, 1, status, "krb5_parse_name");
99
100    status = krb5_get_credentials(context, KRB5_GC_USER_USER, ccache,
101				  &in_creds, &out_creds);
102    if(status)
103	krb5_err(context, 1, status, "krb5_get_credentials");
104
105    status = krb5_cc_default(context, &ccache);
106
107    status = krb5_sendauth(context,
108			   &auth_context,
109			   &sock,
110			   VERSION,
111			   in_creds.client,
112			   in_creds.server,
113			   AP_OPTS_USE_SESSION_KEY,
114			   NULL,
115			   out_creds,
116			   ccache,
117			   NULL,
118			   NULL,
119			   NULL);
120
121    if (status)
122	krb5_err(context, 1, status, "krb5_sendauth");
123
124    {
125	char *str;
126	krb5_unparse_name(context, in_creds.server, &str);
127	printf ("User is `%s'\n", str);
128	free(str);
129	krb5_unparse_name(context, in_creds.client, &str);
130	printf ("Server is `%s'\n", str);
131	free(str);
132    }
133
134    krb5_data_zero (&data);
135    krb5_data_zero (&packet);
136
137    status = krb5_read_message(context, &sock, &packet);
138    if(status)
139	krb5_err(context, 1, status, "krb5_read_message");
140
141    status = krb5_rd_safe (context,
142			   auth_context,
143			   &packet,
144			   &data,
145			   NULL);
146    if (status)
147	errx (1, "krb5_rd_safe: %s",
148	      krb5_get_err_text(context, status));
149
150    printf ("safe packet: %.*s\n", (int)data.length,
151	    (char *)data.data);
152
153    status = krb5_read_message(context, &sock, &packet);
154    if(status)
155	krb5_err(context, 1, status, "krb5_read_message");
156
157    status = krb5_rd_priv (context,
158			   auth_context,
159			   &packet,
160			   &data,
161			   NULL);
162    if (status)
163	errx (1, "krb5_rd_priv: %s",
164	      krb5_get_err_text(context, status));
165
166    printf ("priv packet: %.*s\n", (int)data.length,
167	    (char *)data.data);
168
169    return 0;
170}
171
172static int
173doit (int port, const char *service)
174{
175    int sock, sock2;
176    struct sockaddr_in my_addr;
177    int one = 1;
178
179    sock = socket (AF_INET, SOCK_STREAM, 0);
180    if (sock < 0)
181	err (1, "socket");
182
183    memset (&my_addr, 0, sizeof(my_addr));
184    my_addr.sin_family      = AF_INET;
185    my_addr.sin_port        = port;
186    my_addr.sin_addr.s_addr = INADDR_ANY;
187
188    if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR,
189		    (void *)&one, sizeof(one)) < 0)
190	warn ("setsockopt SO_REUSEADDR");
191
192    if (bind (sock, (struct sockaddr *)&my_addr, sizeof(my_addr)) < 0)
193	err (1, "bind");
194
195    if (listen (sock, 1) < 0)
196	err (1, "listen");
197
198    sock2 = accept (sock, NULL, NULL);
199    if (sock2 < 0)
200	err (1, "accept");
201
202    return proto (sock2, service);
203}
204
205int
206main(int argc, char **argv)
207{
208    int port = server_setup(&context, argc, argv);
209    return doit (port, service);
210}
211