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"
35 RCSID("$Id: uu_server.c 20880 2007-06-04 16:55:00Z lha $");
36
37 krb5_context context;
38
39 static int
proto(int sock,const char * service)40 proto (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
172 static int
doit(int port,const char * service)173 doit (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
205 int
main(int argc,char ** argv)206 main(int argc, char **argv)
207 {
208 int port = server_setup(&context, argc, argv);
209 return doit (port, service);
210 }
211