1 /* $NetBSD: test_ap-req.c,v 1.2 2017/01/28 21:31:49 christos Exp $ */
2
3 /*
4 * Copyright (c) 2006 Kungliga Tekniska Högskolan
5 * (Royal Institute of Technology, Stockholm, Sweden).
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 *
19 * 3. Neither the name of KTH nor the names of its contributors may be
20 * used to endorse or promote products derived from this software without
21 * specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY KTH AND ITS CONTRIBUTORS ``AS IS'' AND ANY
24 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KTH OR ITS CONTRIBUTORS BE
27 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
30 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
31 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
32 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
34
35 #include <config.h>
36
37 #include <sys/types.h>
38 #include <stdio.h>
39 #include <krb5/krb5.h>
40 #include <err.h>
41 #include <krb5/getarg.h>
42 #include <krb5/roken.h>
43
44 static int verify_pac = 0;
45 static int server_any = 0;
46 static int version_flag = 0;
47 static int help_flag = 0;
48
49 static struct getargs args[] = {
50 {"verify-pac",0, arg_flag, &verify_pac,
51 "verify the PAC", NULL },
52 {"server-any",0, arg_flag, &server_any,
53 "let server pick the principal", NULL },
54 {"version", 0, arg_flag, &version_flag,
55 "print version", NULL },
56 {"help", 0, arg_flag, &help_flag,
57 NULL, NULL }
58 };
59
60 static void
usage(int ret)61 usage (int ret)
62 {
63 arg_printusage (args, sizeof(args)/sizeof(*args), NULL, "...");
64 exit (ret);
65 }
66
67
68 static void
test_ap(krb5_context context,krb5_principal target,krb5_principal server,krb5_keytab keytab,krb5_ccache ccache,const krb5_flags client_flags)69 test_ap(krb5_context context,
70 krb5_principal target,
71 krb5_principal server,
72 krb5_keytab keytab,
73 krb5_ccache ccache,
74 const krb5_flags client_flags)
75 {
76 krb5_error_code ret;
77 krb5_auth_context client_ac = NULL, server_ac = NULL;
78 krb5_data data;
79 krb5_flags server_flags;
80 krb5_ticket *ticket = NULL;
81 int32_t server_seq, client_seq;
82
83 ret = krb5_mk_req_exact(context,
84 &client_ac,
85 client_flags,
86 target,
87 NULL,
88 ccache,
89 &data);
90 if (ret)
91 krb5_err(context, 1, ret, "krb5_mk_req_exact");
92
93 ret = krb5_rd_req(context,
94 &server_ac,
95 &data,
96 server,
97 keytab,
98 &server_flags,
99 &ticket);
100 if (ret)
101 krb5_err(context, 1, ret, "krb5_rd_req");
102
103
104 if (server_flags & AP_OPTS_MUTUAL_REQUIRED) {
105 krb5_ap_rep_enc_part *repl;
106
107 krb5_data_free(&data);
108
109 if ((client_flags & AP_OPTS_MUTUAL_REQUIRED) == 0)
110 krb5_errx(context, 1, "client flag missing mutual req");
111
112 ret = krb5_mk_rep (context, server_ac, &data);
113 if (ret)
114 krb5_err(context, 1, ret, "krb5_mk_rep");
115
116 ret = krb5_rd_rep (context,
117 client_ac,
118 &data,
119 &repl);
120 if (ret)
121 krb5_err(context, 1, ret, "krb5_rd_rep");
122
123 krb5_free_ap_rep_enc_part (context, repl);
124 } else {
125 if (client_flags & AP_OPTS_MUTUAL_REQUIRED)
126 krb5_errx(context, 1, "server flag missing mutual req");
127 }
128
129 krb5_auth_con_getremoteseqnumber(context, server_ac, &server_seq);
130 krb5_auth_con_getremoteseqnumber(context, client_ac, &client_seq);
131 if (server_seq != client_seq)
132 krb5_errx(context, 1, "seq num differ");
133
134 krb5_auth_con_getlocalseqnumber(context, server_ac, &server_seq);
135 krb5_auth_con_getlocalseqnumber(context, client_ac, &client_seq);
136 if (server_seq != client_seq)
137 krb5_errx(context, 1, "seq num differ");
138
139 krb5_data_free(&data);
140 krb5_auth_con_free(context, client_ac);
141 krb5_auth_con_free(context, server_ac);
142
143 if (verify_pac) {
144 krb5_pac pac;
145
146 ret = krb5_ticket_get_authorization_data_type(context,
147 ticket,
148 KRB5_AUTHDATA_WIN2K_PAC,
149 &data);
150 if (ret)
151 krb5_err(context, 1, ret, "get pac");
152
153 ret = krb5_pac_parse(context, data.data, data.length, &pac);
154 if (ret)
155 krb5_err(context, 1, ret, "pac parse");
156
157 krb5_pac_free(context, pac);
158 }
159
160 krb5_free_ticket(context, ticket);
161 }
162
163
164 int
main(int argc,char ** argv)165 main(int argc, char **argv)
166 {
167 krb5_context context;
168 krb5_error_code ret;
169 int optidx = 0;
170 const char *principal, *keytab, *ccache;
171 krb5_ccache id;
172 krb5_keytab kt;
173 krb5_principal sprincipal, server;
174
175 setprogname(argv[0]);
176
177 if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
178 usage(1);
179
180 if (help_flag)
181 usage (0);
182
183 if(version_flag){
184 print_version(NULL);
185 exit(0);
186 }
187
188 argc -= optidx;
189 argv += optidx;
190
191 if (argc < 3)
192 usage(1);
193
194 principal = argv[0];
195 keytab = argv[1];
196 ccache = argv[2];
197
198 ret = krb5_init_context(&context);
199 if (ret)
200 errx (1, "krb5_init_context failed: %d", ret);
201
202 ret = krb5_cc_resolve(context, ccache, &id);
203 if (ret)
204 krb5_err(context, 1, ret, "krb5_cc_resolve");
205
206 ret = krb5_parse_name(context, principal, &sprincipal);
207 if (ret)
208 krb5_err(context, 1, ret, "krb5_parse_name");
209
210 ret = krb5_kt_resolve(context, keytab, &kt);
211 if (ret)
212 krb5_err(context, 1, ret, "krb5_kt_resolve");
213
214 if (server_any)
215 server = NULL;
216 else
217 server = sprincipal;
218
219 test_ap(context, sprincipal, server, kt, id, 0);
220 test_ap(context, sprincipal, server, kt, id, AP_OPTS_MUTUAL_REQUIRED);
221
222 krb5_cc_close(context, id);
223 krb5_kt_close(context, kt);
224 krb5_free_principal(context, sprincipal);
225
226 krb5_free_context(context);
227
228 return ret;
229 }
230