lib/libcrypto/asn1/t_req.c

   1 /* $OpenBSD: t_req.c,v 1.19 2017/01/29 17:49:22 beck 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
  61 #include <openssl/opensslconf.h>
  62
  63 #include <openssl/bn.h>
  64 #include <openssl/buffer.h>
  65 #include <openssl/err.h>
  66 #include <openssl/objects.h>
  67 #include <openssl/x509.h>
  68 #include <openssl/x509v3.h>
  69
  70 #ifndef OPENSSL_NO_DSA
  71 #include <openssl/dsa.h>
  72 #endif
  73 #ifndef OPENSSL_NO_RSA
  74 #include <openssl/rsa.h>
  75 #endif
  76
  77 int
  78 X509_REQ_print_fp(FILE *fp, X509_REQ *x)
  79 {
  80         BIO *b;
  81         int ret;
  82
  83         if ((b = BIO_new(BIO_s_file())) == NULL) {
  84                 X509error(ERR_R_BUF_LIB);
  85                 return (0);
  86         }
  87         BIO_set_fp(b, fp, BIO_NOCLOSE);
  88         ret = X509_REQ_print(b, x);
  89         BIO_free(b);
  90         return (ret);
  91 }
  92
  93 int
  94 X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags,
  95     unsigned long cflag)
  96 {
  97         unsigned long l;
  98         int i;
  99         const char *neg;
 100         X509_REQ_INFO *ri;
 101         EVP_PKEY *pkey;
 102         STACK_OF(X509_ATTRIBUTE) *sk;
 103         STACK_OF(X509_EXTENSION) *exts;
 104         char mlch = ' ';
 105         int nmindent = 0;
 106
 107         if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 108                 mlch = '\n';
 109                 nmindent = 12;
 110         }
 111
 112         if (nmflags == X509_FLAG_COMPAT)
 113                 nmindent = 16;
 114
 115         ri = x->req_info;
 116         if (!(cflag & X509_FLAG_NO_HEADER)) {
 117                 if (BIO_write(bp, "Certificate Request:\n", 21) <= 0)
 118                         goto err;
 119                 if (BIO_write(bp, "    Data:\n", 10) <= 0)
 120
 121                         goto err;
 122         }
 123         if (!(cflag & X509_FLAG_NO_VERSION)) {
 124                 neg = (ri->version->type == V_ASN1_NEG_INTEGER) ? "-" : "";
 125                 l = 0;
 126                 for (i = 0; i < ri->version->length; i++) {
 127                         l <<= 8;
 128                         l += ri->version->data[i];
 129                 }
 130                 if (BIO_printf(bp, "%8sVersion: %s%lu (%s0x%lx)\n", "", neg,
 131                     l, neg, l) <= 0)
 132                         goto err;
 133         }
 134         if (!(cflag & X509_FLAG_NO_SUBJECT)) {
 135                 if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
 136                         goto err;
 137                 if (X509_NAME_print_ex(bp, ri->subject, nmindent, nmflags) < 0)
 138                         goto err;
 139                 if (BIO_write(bp, "\n", 1) <= 0)
 140                         goto err;
 141         }
 142         if (!(cflag & X509_FLAG_NO_PUBKEY)) {
 143                 if (BIO_write(bp, "        Subject Public Key Info:\n",
 144                     33) <= 0)
 145                         goto err;
 146                 if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
 147                         goto err;
 148                 if (i2a_ASN1_OBJECT(bp, ri->pubkey->algor->algorithm) <= 0)
 149                         goto err;
 150                 if (BIO_puts(bp, "\n") <= 0)
 151                         goto err;
 152
 153                 pkey = X509_REQ_get_pubkey(x);
 154                 if (pkey == NULL) {
 155                         BIO_printf(bp, "%12sUnable to load Public Key\n", "");
 156                         ERR_print_errors(bp);
 157                 } else {
 158                         EVP_PKEY_print_public(bp, pkey, 16, NULL);
 159                         EVP_PKEY_free(pkey);
 160                 }
 161         }
 162
 163         if (!(cflag & X509_FLAG_NO_ATTRIBUTES)) {
 164                 /* may not be */
 165                 if (BIO_printf(bp, "%8sAttributes:\n", "") <= 0)
 166                         goto err;
 167
 168                 sk = x->req_info->attributes;
 169                 if (sk_X509_ATTRIBUTE_num(sk) == 0) {
 170                         if (BIO_printf(bp, "%12sa0:00\n", "") <= 0)
 171                                 goto err;
 172                 } else {
 173                         for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
 174                                 ASN1_TYPE *at;
 175                                 X509_ATTRIBUTE *a;
 176                                 ASN1_BIT_STRING *bs = NULL;
 177                                 ASN1_TYPE *t;
 178                                 int j, type = 0, count = 1, ii = 0;
 179
 180                                 a = sk_X509_ATTRIBUTE_value(sk, i);
 181                                 if (X509_REQ_extension_nid(
 182                                     OBJ_obj2nid(a->object)))
 183                                         continue;
 184                                 if (BIO_printf(bp, "%12s", "") <= 0)
 185                                         goto err;
 186                                 if ((j = i2a_ASN1_OBJECT(bp, a->object)) > 0) {
 187                                         if (a->single) {
 188                                                 t = a->value.single;
 189                                                 type = t->type;
 190                                                 bs = t->value.bit_string;
 191                                         } else {
 192                                                 ii = 0;
 193                                                 count = sk_ASN1_TYPE_num(
 194                                                     a->value.set);
 195 get_next:
 196                                                 at = sk_ASN1_TYPE_value(
 197                                                     a->value.set, ii);
 198                                                 type = at->type;
 199                                                 bs = at->value.asn1_string;
 200                                         }
 201                                 }
 202                                 for (j = 25 - j; j > 0; j--)
 203                                         if (BIO_write(bp, " ", 1) != 1)
 204                                                 goto err;
 205                                 if (BIO_puts(bp, ":") <= 0)
 206                                         goto err;
 207                                 if ((type == V_ASN1_PRINTABLESTRING) ||
 208                                     (type == V_ASN1_T61STRING) ||
 209                                     (type == V_ASN1_IA5STRING)) {
 210                                         if (BIO_write(bp, (char *)bs->data,
 211                                             bs->length) != bs->length)
 212                                                 goto err;
 213                                         BIO_puts(bp, "\n");
 214                                 } else {
 215                                         BIO_puts(bp,
 216                                             "unable to print attribute\n");
 217                                 }
 218                                 if (++ii < count)
 219                                         goto get_next;
 220                         }
 221                 }
 222         }
 223         if (!(cflag & X509_FLAG_NO_EXTENSIONS)) {
 224                 exts = X509_REQ_get_extensions(x);
 225                 if (exts) {
 226                         BIO_printf(bp, "%8sRequested Extensions:\n", "");
 227                         for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
 228                                 ASN1_OBJECT *obj;
 229                                 X509_EXTENSION *ex;
 230                                 int j;
 231                                 ex = sk_X509_EXTENSION_value(exts, i);
 232                                 if (BIO_printf(bp, "%12s", "") <= 0)
 233                                         goto err;
 234                                 obj = X509_EXTENSION_get_object(ex);
 235                                 i2a_ASN1_OBJECT(bp, obj);
 236                                 j = X509_EXTENSION_get_critical(ex);
 237                                 if (BIO_printf(bp, ": %s\n",
 238                                     j ? "critical" : "") <= 0)
 239                                         goto err;
 240                                 if (!X509V3_EXT_print(bp, ex, cflag, 16)) {
 241                                         BIO_printf(bp, "%16s", "");
 242                                         ASN1_STRING_print(bp, ex->value);
 243                                 }
 244                                 if (BIO_write(bp, "\n", 1) <= 0)
 245                                         goto err;
 246                         }
 247                         sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
 248                 }
 249         }
 250
 251         if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
 252                 if (!X509_signature_print(bp, x->sig_alg, x->signature))
 253                         goto err;
 254         }
 255
 256         return (1);
 257
 258 err:
 259         X509error(ERR_R_BUF_LIB);
 260         return (0);
 261 }
 262
 263 int
 264 X509_REQ_print(BIO *bp, X509_REQ *x)
 265 {
 266         return X509_REQ_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
 267 }