1 /* $OpenBSD: sess_id.c,v 1.6 2015/10/10 22:28:51 doug 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 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 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 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 rpath wpath cpath", 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 * 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