1 /* $OpenBSD: sess_id.c,v 1.10 2019/07/14 03:30:46 guenther Exp $ */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include <stdio.h>
60 #include <stdlib.h>
61 #include <string.h>
62
63 #include "apps.h"
64 #include "progs.h"
65
66 #include <openssl/bio.h>
67 #include <openssl/err.h>
68 #include <openssl/pem.h>
69 #include <openssl/ssl.h>
70 #include <openssl/x509.h>
71
72 static struct {
73 int cert;
74 char *context;
75 char *infile;
76 int informat;
77 int noout;
78 char *outfile;
79 int outformat;
80 int text;
81 } sess_id_config;
82
83 static const struct option sess_id_options[] = {
84 {
85 .name = "cert",
86 .desc = "Output certificate if present in session",
87 .type = OPTION_FLAG,
88 .opt.flag = &sess_id_config.cert,
89 },
90 {
91 .name = "context",
92 .argname = "id",
93 .desc = "Set the session ID context for output",
94 .type = OPTION_ARG,
95 .opt.arg = &sess_id_config.context,
96 },
97 {
98 .name = "in",
99 .argname = "file",
100 .desc = "Input file (default stdin)",
101 .type = OPTION_ARG,
102 .opt.arg = &sess_id_config.infile,
103 },
104 {
105 .name = "inform",
106 .argname = "format",
107 .desc = "Input format (DER or PEM (default))",
108 .type = OPTION_ARG_FORMAT,
109 .opt.value = &sess_id_config.informat,
110 },
111 {
112 .name = "noout",
113 .desc = "Do not output the encoded session info",
114 .type = OPTION_FLAG,
115 .opt.flag = &sess_id_config.noout,
116 },
117 {
118 .name = "out",
119 .argname = "file",
120 .desc = "Output file (default stdout)",
121 .type = OPTION_ARG,
122 .opt.arg = &sess_id_config.outfile,
123 },
124 {
125 .name = "outform",
126 .argname = "format",
127 .desc = "Output format (DER or PEM (default))",
128 .type = OPTION_ARG_FORMAT,
129 .opt.value = &sess_id_config.outformat,
130 },
131 {
132 .name = "text",
133 .desc = "Print various public or private key components in"
134 " plain text",
135 .type = OPTION_FLAG,
136 .opt.flag = &sess_id_config.text,
137 },
138 { NULL }
139 };
140
141 static void
sess_id_usage(void)142 sess_id_usage(void)
143 {
144 fprintf(stderr,
145 "usage: sess_id [-cert] [-context id] [-in file] [-inform fmt] "
146 "[-noout]\n"
147 " [-out file] [-outform fmt] [-text]\n\n");
148 options_usage(sess_id_options);
149 }
150
151 static SSL_SESSION *load_sess_id(char *file, int format);
152
153 int
sess_id_main(int argc,char ** argv)154 sess_id_main(int argc, char **argv)
155 {
156 SSL_SESSION *x = NULL;
157 X509 *peer = NULL;
158 int ret = 1, i;
159 BIO *out = NULL;
160
161 if (single_execution) {
162 if (pledge("stdio cpath wpath rpath", NULL) == -1) {
163 perror("pledge");
164 exit(1);
165 }
166 }
167
168 memset(&sess_id_config, 0, sizeof(sess_id_config));
169
170 sess_id_config.informat = FORMAT_PEM;
171 sess_id_config.outformat = FORMAT_PEM;
172
173 if (options_parse(argc, argv, sess_id_options, NULL, NULL) != 0) {
174 sess_id_usage();
175 return (1);
176 }
177
178 x = load_sess_id(sess_id_config.infile, sess_id_config.informat);
179 if (x == NULL) {
180 goto end;
181 }
182 peer = SSL_SESSION_get0_peer(x);
183
184 if (sess_id_config.context) {
185 size_t ctx_len = strlen(sess_id_config.context);
186 if (ctx_len > SSL_MAX_SID_CTX_LENGTH) {
187 BIO_printf(bio_err, "Context too long\n");
188 goto end;
189 }
190 SSL_SESSION_set1_id_context(x,
191 (unsigned char *)sess_id_config.context, ctx_len);
192 }
193
194 if (!sess_id_config.noout || sess_id_config.text) {
195 out = BIO_new(BIO_s_file());
196 if (out == NULL) {
197 ERR_print_errors(bio_err);
198 goto end;
199 }
200 if (sess_id_config.outfile == NULL) {
201 BIO_set_fp(out, stdout, BIO_NOCLOSE);
202 } else {
203 if (BIO_write_filename(out, sess_id_config.outfile)
204 <= 0) {
205 perror(sess_id_config.outfile);
206 goto end;
207 }
208 }
209 }
210 if (sess_id_config.text) {
211 SSL_SESSION_print(out, x);
212
213 if (sess_id_config.cert) {
214 if (peer == NULL)
215 BIO_puts(out, "No certificate present\n");
216 else
217 X509_print(out, peer);
218 }
219 }
220 if (!sess_id_config.noout && !sess_id_config.cert) {
221 if (sess_id_config.outformat == FORMAT_ASN1)
222 i = i2d_SSL_SESSION_bio(out, x);
223 else if (sess_id_config.outformat == FORMAT_PEM)
224 i = PEM_write_bio_SSL_SESSION(out, x);
225 else {
226 BIO_printf(bio_err,
227 "bad output format specified for outfile\n");
228 goto end;
229 }
230 if (!i) {
231 BIO_printf(bio_err, "unable to write SSL_SESSION\n");
232 goto end;
233 }
234 } else if (!sess_id_config.noout && (peer != NULL)) {
235 /* just print the certificate */
236 if (sess_id_config.outformat == FORMAT_ASN1)
237 i = (int) i2d_X509_bio(out, peer);
238 else if (sess_id_config.outformat == FORMAT_PEM)
239 i = PEM_write_bio_X509(out, peer);
240 else {
241 BIO_printf(bio_err,
242 "bad output format specified for outfile\n");
243 goto end;
244 }
245 if (!i) {
246 BIO_printf(bio_err, "unable to write X509\n");
247 goto end;
248 }
249 }
250 ret = 0;
251
252 end:
253 BIO_free_all(out);
254 SSL_SESSION_free(x);
255
256 return (ret);
257 }
258
259 static SSL_SESSION *
load_sess_id(char * infile,int format)260 load_sess_id(char *infile, int format)
261 {
262 SSL_SESSION *x = NULL;
263 BIO *in = NULL;
264
265 in = BIO_new(BIO_s_file());
266 if (in == NULL) {
267 ERR_print_errors(bio_err);
268 goto end;
269 }
270 if (infile == NULL)
271 BIO_set_fp(in, stdin, BIO_NOCLOSE);
272 else {
273 if (BIO_read_filename(in, infile) <= 0) {
274 perror(infile);
275 goto end;
276 }
277 }
278 if (format == FORMAT_ASN1)
279 x = d2i_SSL_SESSION_bio(in, NULL);
280 else if (format == FORMAT_PEM)
281 x = PEM_read_bio_SSL_SESSION(in, NULL, NULL, NULL);
282 else {
283 BIO_printf(bio_err,
284 "bad input format specified for input crl\n");
285 goto end;
286 }
287 if (x == NULL) {
288 BIO_printf(bio_err, "unable to load SSL_SESSION\n");
289 ERR_print_errors(bio_err);
290 goto end;
291 }
292 end:
293 BIO_free(in);
294 return (x);
295 }
296