bin/openssl/sess_id.c

   1 /* $OpenBSD: sess_id.c,v 1.9 2018/02/07 05:47:55 jsing 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 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 *
 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 }