1 /*
2 * Copyright (c) 2006 Kungliga Tekniska Högskolan
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 KTH nor the names of its contributors may be
18 * used to endorse or promote products derived from this software without
19 * specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
22 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
28 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34 #ifdef HAVE_CONFIG_H
35 #include <config.h>
36 #endif
37
38 #include <roken.h>
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <string.h>
42 #include <stdarg.h>
43 #include <gssapi.h>
44 #include <gssapi_krb5.h>
45 #include <gssapi_spnego.h>
46 #include <err.h>
47 #include <getarg.h>
48
49 static void
gss_print_errors(int min_stat)50 gss_print_errors (int min_stat)
51 {
52 OM_uint32 new_stat;
53 OM_uint32 msg_ctx = 0;
54 gss_buffer_desc status_string;
55 OM_uint32 ret;
56
57 do {
58 ret = gss_display_status (&new_stat,
59 min_stat,
60 GSS_C_MECH_CODE,
61 GSS_C_NO_OID,
62 &msg_ctx,
63 &status_string);
64 if (!GSS_ERROR(ret)) {
65 fprintf (stderr, "%.*s\n", (int)status_string.length,
66 (char *)status_string.value);
67 gss_release_buffer (&new_stat, &status_string);
68 }
69 } while (!GSS_ERROR(ret) && msg_ctx != 0);
70 }
71
72 static void
gss_err(int exitval,int status,const char * fmt,...)73 gss_err(int exitval, int status, const char *fmt, ...)
74 {
75 va_list args;
76
77 va_start(args, fmt);
78 vwarnx (fmt, args);
79 gss_print_errors (status);
80 va_end(args);
81 exit (exitval);
82 }
83
84 static int version_flag = 0;
85 static int help_flag = 0;
86
87 static struct getargs args[] = {
88 {"version", 0, arg_flag, &version_flag, "print version", NULL },
89 {"help", 0, arg_flag, &help_flag, NULL, NULL }
90 };
91
92 static void
usage(int ret)93 usage (int ret)
94 {
95 arg_printusage (args, sizeof(args)/sizeof(*args),
96 NULL, "service@host");
97 exit (ret);
98 }
99
100
101 int
main(int argc,char ** argv)102 main(int argc, char **argv)
103 {
104 gss_buffer_desc name_buffer;
105 OM_uint32 maj_stat, min_stat;
106 gss_name_t name, MNname, MNname2;
107 int optidx = 0;
108 char *str;
109 int len, equal;
110
111 setprogname(argv[0]);
112 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
113 usage(1);
114
115 if (help_flag)
116 usage (0);
117
118 if(version_flag){
119 print_version(NULL);
120 exit(0);
121 }
122
123 argc -= optidx;
124 argv += optidx;
125
126 gsskrb5_set_default_realm("MIT.EDU");
127
128 /*
129 * test import/export
130 */
131
132 str = NULL;
133 len = asprintf(&str, "ftp@freeze-arrow.mit.edu");
134 if (len < 0 || str == NULL)
135 errx(1, "asprintf");
136
137 name_buffer.value = str;
138 name_buffer.length = len;
139
140 maj_stat = gss_import_name(&min_stat, &name_buffer,
141 GSS_C_NT_HOSTBASED_SERVICE,
142 &name);
143 if (maj_stat != GSS_S_COMPLETE)
144 gss_err(1, min_stat, "import name error");
145 free(str);
146
147 maj_stat = gss_canonicalize_name (&min_stat,
148 name,
149 GSS_KRB5_MECHANISM,
150 &MNname);
151 if (maj_stat != GSS_S_COMPLETE)
152 gss_err(1, min_stat, "canonicalize name error");
153
154 maj_stat = gss_export_name(&min_stat,
155 MNname,
156 &name_buffer);
157 if (maj_stat != GSS_S_COMPLETE)
158 gss_err(1, min_stat, "export name error (KRB5)");
159
160 /*
161 * Import the exported name and compare
162 */
163
164 maj_stat = gss_import_name(&min_stat, &name_buffer,
165 GSS_C_NT_EXPORT_NAME,
166 &MNname2);
167 if (maj_stat != GSS_S_COMPLETE)
168 gss_err(1, min_stat, "import name error (exported KRB5 name)");
169
170
171 maj_stat = gss_compare_name(&min_stat, MNname, MNname2, &equal);
172 if (maj_stat != GSS_S_COMPLETE)
173 errx(1, "gss_compare_name");
174 if (!equal)
175 errx(1, "names not equal");
176
177 gss_release_name(&min_stat, &MNname2);
178 gss_release_buffer(&min_stat, &name_buffer);
179 gss_release_name(&min_stat, &MNname);
180 gss_release_name(&min_stat, &name);
181
182 /*
183 * Import oid less name and compare to mech name.
184 * Dovecot SASL lib does this.
185 */
186
187 str = NULL;
188 len = asprintf(&str, "lha");
189 if (len < 0 || str == NULL)
190 errx(1, "asprintf");
191
192 name_buffer.value = str;
193 name_buffer.length = len;
194
195 maj_stat = gss_import_name(&min_stat, &name_buffer,
196 GSS_C_NO_OID,
197 &name);
198 if (maj_stat != GSS_S_COMPLETE)
199 gss_err(1, min_stat, "import (no oid) name error");
200
201 maj_stat = gss_import_name(&min_stat, &name_buffer,
202 GSS_KRB5_NT_USER_NAME,
203 &MNname);
204 if (maj_stat != GSS_S_COMPLETE)
205 gss_err(1, min_stat, "import (krb5 mn) name error");
206
207 free(str);
208
209 maj_stat = gss_compare_name(&min_stat, name, MNname, &equal);
210 if (maj_stat != GSS_S_COMPLETE)
211 errx(1, "gss_compare_name");
212 if (!equal)
213 errx(1, "names not equal");
214
215 gss_release_name(&min_stat, &MNname);
216 gss_release_name(&min_stat, &name);
217
218 #if 0
219 maj_stat = gss_canonicalize_name (&min_stat,
220 name,
221 GSS_SPNEGO_MECHANISM,
222 &MNname);
223 if (maj_stat != GSS_S_COMPLETE)
224 gss_err(1, min_stat, "canonicalize name error");
225
226
227 maj_stat = gss_export_name(&maj_stat,
228 MNname,
229 &name_buffer);
230 if (maj_stat != GSS_S_COMPLETE)
231 gss_err(1, min_stat, "export name error (SPNEGO)");
232
233 gss_release_name(&min_stat, &MNname);
234 gss_release_buffer(&min_stat, &name_buffer);
235 #endif
236
237 return 0;
238 }
239