apps/sess_id.c

   1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   2  * All rights reserved.
   3  *
   4  * This package is an SSL implementation written
   5  * by Eric Young (eay@cryptsoft.com).
   6  * The implementation was written so as to conform with Netscapes SSL.
   7  *
   8  * This library is free for commercial and non-commercial use as long as
   9  * the following conditions are aheared to.  The following conditions
  10  * apply to all code found in this distribution, be it the RC4, RSA,
  11  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  12  * included with this distribution is covered by the same copyright terms
  13  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
  14  *
  15  * Copyright remains Eric Young's, and as such any Copyright notices in
  16  * the code are not to be removed.
  17  * If this package is used in a product, Eric Young should be given attribution
  18  * as the author of the parts of the library used.
  19  * This can be in the form of a textual message at program startup or
  20  * in documentation (online or textual) provided with the package.
  21  *
  22  * Redistribution and use in source and binary forms, with or without
  23  * modification, are permitted provided that the following conditions
  24  * are met:
  25  * 1. Redistributions of source code must retain the copyright
  26  *    notice, this list of conditions and the following disclaimer.
  27  * 2. Redistributions in binary form must reproduce the above copyright
  28  *    notice, this list of conditions and the following disclaimer in the
  29  *    documentation and/or other materials provided with the distribution.
  30  * 3. All advertising materials mentioning features or use of this software
  31  *    must display the following acknowledgement:
  32  *    "This product includes cryptographic software written by
  33  *     Eric Young (eay@cryptsoft.com)"
  34  *    The word 'cryptographic' can be left out if the rouines from the library
  35  *    being used are not cryptographic related :-).
  36  * 4. If you include any Windows specific code (or a derivative thereof) from
  37  *    the apps directory (application code) you must include an acknowledgement:
  38  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  41  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  43  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  44  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  45  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  46  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  48  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  49  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  50  * SUCH DAMAGE.
  51  *
  52  * The licence and distribution terms for any publically available version or
  53  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  54  * copied and put under another distribution licence
  55  * [including the GNU Public Licence.]
  56  */
  57
  58 #include <stdio.h>
  59 #include <stdlib.h>
  60 #include <string.h>
  61 #include "apps.h"
  62 #include <openssl/bio.h>
  63 #include <openssl/err.h>
  64 #include <openssl/x509.h>
  65 #include <openssl/pem.h>
  66 #include <openssl/ssl.h>
  67
  68 typedef enum OPTION_choice {
  69     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  70     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT,
  71     OPT_TEXT, OPT_CERT, OPT_NOOUT, OPT_CONTEXT
  72 } OPTION_CHOICE;
  73
  74 OPTIONS sess_id_options[] = {
  75     {"help", OPT_HELP, '-', "Display this summary"},
  76     {"inform", OPT_INFORM, 'F', "Input format - default PEM (DER or PEM)"},
  77     {"outform", OPT_OUTFORM, 'F',
  78      "Output format - default PEM (PEM, DER or NSS)"},
  79     {"in", OPT_IN, 's', "Input file - default stdin"},
  80     {"out", OPT_OUT, 's', "Output file - default stdout"},
  81     {"text", OPT_TEXT, '-', "Print ssl session id details"},
  82     {"cert", OPT_CERT, '-', "Output certificate "},
  83     {"noout", OPT_NOOUT, '-', "Don't output the encoded session info"},
  84     {"context", OPT_CONTEXT, 's', "Set the session ID context"},
  85     {NULL}
  86 };
  87
  88 static SSL_SESSION *load_sess_id(char *file, int format);
  89
  90 int sess_id_main(int argc, char **argv)
  91 {
  92     SSL_SESSION *x = NULL;
  93     X509 *peer = NULL;
  94     BIO *out = NULL;
  95     char *infile = NULL, *outfile = NULL, *context = NULL, *prog;
  96     int informat = FORMAT_PEM, outformat = FORMAT_PEM;
  97     int cert = 0, noout = 0, text = 0, ret = 1, i, num = 0;
  98     OPTION_CHOICE o;
  99
 100     prog = opt_init(argc, argv, sess_id_options);
 101     while ((o = opt_next()) != OPT_EOF) {
 102         switch (o) {
 103         case OPT_EOF:
 104         case OPT_ERR:
 105  opthelp:
 106             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 107             goto end;
 108         case OPT_HELP:
 109             opt_help(sess_id_options);
 110             ret = 0;
 111             goto end;
 112         case OPT_INFORM:
 113             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
 114                 goto opthelp;
 115             break;
 116         case OPT_OUTFORM:
 117             if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
 118                 goto opthelp;
 119             break;
 120         case OPT_IN:
 121             infile = opt_arg();
 122             break;
 123         case OPT_OUT:
 124             outfile = opt_arg();
 125             break;
 126         case OPT_TEXT:
 127             text = ++num;
 128             break;
 129         case OPT_CERT:
 130             cert = ++num;
 131             break;
 132         case OPT_NOOUT:
 133             noout = ++num;
 134             break;
 135         case OPT_CONTEXT:
 136             context = opt_arg();
 137             break;
 138         }
 139     }
 140     argc = opt_num_rest();
 141     argv = opt_rest();
 142
 143     x = load_sess_id(infile, informat);
 144     if (x == NULL) {
 145         goto end;
 146     }
 147     peer = SSL_SESSION_get0_peer(x);
 148
 149     if (context) {
 150         size_t ctx_len = strlen(context);
 151         if (ctx_len > SSL_MAX_SID_CTX_LENGTH) {
 152             BIO_printf(bio_err, "Context too long\n");
 153             goto end;
 154         }
 155         if (!SSL_SESSION_set1_id_context(x, (unsigned char *)context,
 156                     ctx_len)) {
 157             BIO_printf(bio_err, "Error setting id context\n");
 158             goto end;
 159         }
 160     }
 161
 162     if (!noout || text) {
 163         out = bio_open_default(outfile, 'w', outformat);
 164         if (out == NULL)
 165             goto end;
 166     }
 167
 168     if (text) {
 169         SSL_SESSION_print(out, x);
 170
 171         if (cert) {
 172             if (peer == NULL)
 173                 BIO_puts(out, "No certificate present\n");
 174             else
 175                 X509_print(out, peer);
 176         }
 177     }
 178
 179     if (!noout && !cert) {
 180         if (outformat == FORMAT_ASN1)
 181             i = i2d_SSL_SESSION_bio(out, x);
 182         else if (outformat == FORMAT_PEM)
 183             i = PEM_write_bio_SSL_SESSION(out, x);
 184         else if (outformat == FORMAT_NSS)
 185             i = SSL_SESSION_print_keylog(out, x);
 186         else {
 187             BIO_printf(bio_err, "bad output format specified for outfile\n");
 188             goto end;
 189         }
 190         if (!i) {
 191             BIO_printf(bio_err, "unable to write SSL_SESSION\n");
 192             goto end;
 193         }
 194     } else if (!noout && (peer != NULL)) { /* just print the certificate */
 195         if (outformat == FORMAT_ASN1)
 196             i = (int)i2d_X509_bio(out, peer);
 197         else if (outformat == FORMAT_PEM)
 198             i = PEM_write_bio_X509(out, peer);
 199         else {
 200             BIO_printf(bio_err, "bad output format specified for outfile\n");
 201             goto end;
 202         }
 203         if (!i) {
 204             BIO_printf(bio_err, "unable to write X509\n");
 205             goto end;
 206         }
 207     }
 208     ret = 0;
 209  end:
 210     BIO_free_all(out);
 211     SSL_SESSION_free(x);
 212     return (ret);
 213 }
 214
 215 static SSL_SESSION *load_sess_id(char *infile, int format)
 216 {
 217     SSL_SESSION *x = NULL;
 218     BIO *in = NULL;
 219
 220     in = bio_open_default(infile, 'r', format);
 221     if (in == NULL)
 222         goto end;
 223     if (format == FORMAT_ASN1)
 224         x = d2i_SSL_SESSION_bio(in, NULL);
 225     else
 226         x = PEM_read_bio_SSL_SESSION(in, NULL, NULL, NULL);
 227     if (x == NULL) {
 228         BIO_printf(bio_err, "unable to load SSL_SESSION\n");
 229         ERR_print_errors(bio_err);
 230         goto end;
 231     }
 232
 233  end:
 234     BIO_free(in);
 235     return (x);
 236 }