1 /* $OpenBSD: sess_id.c,v 1.12 2023/03/06 14:32:06 tb 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 } cfg; 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 = &cfg.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 = &cfg.context, 96 }, 97 { 98 .name = "in", 99 .argname = "file", 100 .desc = "Input file (default stdin)", 101 .type = OPTION_ARG, 102 .opt.arg = &cfg.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 = &cfg.informat, 110 }, 111 { 112 .name = "noout", 113 .desc = "Do not output the encoded session info", 114 .type = OPTION_FLAG, 115 .opt.flag = &cfg.noout, 116 }, 117 { 118 .name = "out", 119 .argname = "file", 120 .desc = "Output file (default stdout)", 121 .type = OPTION_ARG, 122 .opt.arg = &cfg.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 = &cfg.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 = &cfg.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 (pledge("stdio cpath wpath rpath", NULL) == -1) { 162 perror("pledge"); 163 exit(1); 164 } 165 166 memset(&cfg, 0, sizeof(cfg)); 167 168 cfg.informat = FORMAT_PEM; 169 cfg.outformat = FORMAT_PEM; 170 171 if (options_parse(argc, argv, sess_id_options, NULL, NULL) != 0) { 172 sess_id_usage(); 173 return (1); 174 } 175 176 x = load_sess_id(cfg.infile, cfg.informat); 177 if (x == NULL) { 178 goto end; 179 } 180 peer = SSL_SESSION_get0_peer(x); 181 182 if (cfg.context) { 183 size_t ctx_len = strlen(cfg.context); 184 if (ctx_len > SSL_MAX_SID_CTX_LENGTH) { 185 BIO_printf(bio_err, "Context too long\n"); 186 goto end; 187 } 188 SSL_SESSION_set1_id_context(x, 189 (unsigned char *)cfg.context, ctx_len); 190 } 191 192 if (!cfg.noout || cfg.text) { 193 out = BIO_new(BIO_s_file()); 194 if (out == NULL) { 195 ERR_print_errors(bio_err); 196 goto end; 197 } 198 if (cfg.outfile == NULL) { 199 BIO_set_fp(out, stdout, BIO_NOCLOSE); 200 } else { 201 if (BIO_write_filename(out, cfg.outfile) 202 <= 0) { 203 perror(cfg.outfile); 204 goto end; 205 } 206 } 207 } 208 if (cfg.text) { 209 SSL_SESSION_print(out, x); 210 211 if (cfg.cert) { 212 if (peer == NULL) 213 BIO_puts(out, "No certificate present\n"); 214 else 215 X509_print(out, peer); 216 } 217 } 218 if (!cfg.noout && !cfg.cert) { 219 if (cfg.outformat == FORMAT_ASN1) 220 i = i2d_SSL_SESSION_bio(out, x); 221 else if (cfg.outformat == FORMAT_PEM) 222 i = PEM_write_bio_SSL_SESSION(out, x); 223 else { 224 BIO_printf(bio_err, 225 "bad output format specified for outfile\n"); 226 goto end; 227 } 228 if (!i) { 229 BIO_printf(bio_err, "unable to write SSL_SESSION\n"); 230 goto end; 231 } 232 } else if (!cfg.noout && (peer != NULL)) { 233 /* just print the certificate */ 234 if (cfg.outformat == FORMAT_ASN1) 235 i = (int) i2d_X509_bio(out, peer); 236 else if (cfg.outformat == FORMAT_PEM) 237 i = PEM_write_bio_X509(out, peer); 238 else { 239 BIO_printf(bio_err, 240 "bad output format specified for outfile\n"); 241 goto end; 242 } 243 if (!i) { 244 BIO_printf(bio_err, "unable to write X509\n"); 245 goto end; 246 } 247 } 248 ret = 0; 249 250 end: 251 BIO_free_all(out); 252 SSL_SESSION_free(x); 253 254 return (ret); 255 } 256 257 static SSL_SESSION * 258 load_sess_id(char *infile, int format) 259 { 260 SSL_SESSION *x = NULL; 261 BIO *in = NULL; 262 263 in = BIO_new(BIO_s_file()); 264 if (in == NULL) { 265 ERR_print_errors(bio_err); 266 goto end; 267 } 268 if (infile == NULL) 269 BIO_set_fp(in, stdin, BIO_NOCLOSE); 270 else { 271 if (BIO_read_filename(in, infile) <= 0) { 272 perror(infile); 273 goto end; 274 } 275 } 276 if (format == FORMAT_ASN1) 277 x = d2i_SSL_SESSION_bio(in, NULL); 278 else if (format == FORMAT_PEM) 279 x = PEM_read_bio_SSL_SESSION(in, NULL, NULL, NULL); 280 else { 281 BIO_printf(bio_err, 282 "bad input format specified for input crl\n"); 283 goto end; 284 } 285 if (x == NULL) { 286 BIO_printf(bio_err, "unable to load SSL_SESSION\n"); 287 ERR_print_errors(bio_err); 288 goto end; 289 } 290 end: 291 BIO_free(in); 292 return (x); 293 } 294