crypto/asn1/t_x509.c

   1 /* crypto/asn1/t_x509.c */
   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 "cryptlib.h"
  61 #include <openssl/buffer.h>
  62 #include <openssl/bn.h>
  63 #ifndef NO_RSA
  64 #include <openssl/rsa.h>
  65 #endif
  66 #ifndef NO_DSA
  67 #include <openssl/dsa.h>
  68 #endif
  69 #include <openssl/objects.h>
  70 #include <openssl/x509.h>
  71 #include <openssl/x509v3.h>
  72
  73 #ifndef NO_FP_API
  74 int X509_print_fp(FILE *fp, X509 *x)
  75         {
  76         return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  77         }
  78
  79 int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag, unsigned long cflag)
  80         {
  81         BIO *b;
  82         int ret;
  83
  84         if ((b=BIO_new(BIO_s_file())) == NULL)
  85                 {
  86                 X509err(X509_F_X509_PRINT_FP,ERR_R_BUF_LIB);
  87                 return(0);
  88                 }
  89         BIO_set_fp(b,fp,BIO_NOCLOSE);
  90         ret=X509_print_ex(b, x, nmflag, cflag);
  91         BIO_free(b);
  92         return(ret);
  93         }
  94 #endif
  95
  96 int X509_print(BIO *bp, X509 *x)
  97 {
  98         return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
  99 }
 100
 101 int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags, unsigned long cflag)
 102         {
 103         long l;
 104         int ret=0,i,j,n;
 105         char *m=NULL,*s, mlch = ' ';
 106         X509_CINF *ci;
 107         ASN1_INTEGER *bs;
 108         EVP_PKEY *pkey=NULL;
 109         const char *neg;
 110         X509_EXTENSION *ex;
 111         ASN1_STRING *str=NULL;
 112
 113         if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE)
 114                         mlch = '\n';
 115
 116         ci=x->cert_info;
 117         if(!(cflag & X509_FLAG_NO_HEADER))
 118                 {
 119                 if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
 120                 if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
 121                 }
 122         if(!(cflag & X509_FLAG_NO_VERSION))
 123                 {
 124                 l=X509_get_version(x);
 125                 if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
 126                 }
 127         if(!(cflag & X509_FLAG_NO_SERIAL))
 128                 {
 129
 130                 if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
 131
 132                 bs=X509_get_serialNumber(x);
 133                 if (bs->length <= 4)
 134                         {
 135                         l=ASN1_INTEGER_get(bs);
 136                         if (l < 0)
 137                                 {
 138                                 l= -l;
 139                                 neg="-";
 140                                 }
 141                         else
 142                                 neg="";
 143                         if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
 144                                 goto err;
 145                         }
 146                 else
 147                         {
 148                         neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
 149                         if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
 150
 151                         for (i=0; i<bs->length; i++)
 152                                 {
 153                                 if (BIO_printf(bp,"%02x%c",bs->data[i],
 154                                         ((i+1 == bs->length)?'\n':':')) <= 0)
 155                                         goto err;
 156                                 }
 157                         }
 158
 159                 }
 160
 161         if(!(cflag & X509_FLAG_NO_SIGNAME))
 162                 {
 163                 i=OBJ_obj2nid(ci->signature->algorithm);
 164                 if (BIO_printf(bp,"%8sSignature Algorithm: %s\n","",
 165                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 166                         goto err;
 167                 }
 168
 169         if(!(cflag & X509_FLAG_NO_ISSUER))
 170                 {
 171                 if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
 172                 if (!X509_NAME_print_ex(bp,X509_get_issuer_name(x),16, nmflags)) goto err;
 173                 }
 174         if(!(cflag & X509_FLAG_NO_VALIDITY))
 175                 {
 176                 if (BIO_write(bp,"\n        Validity\n",18) <= 0) goto err;
 177                 if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
 178                 if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
 179                 if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
 180                 if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
 181                 if (BIO_write(bp,"\n",1) <= 0) goto err;
 182                 }
 183         if(!(cflag & X509_FLAG_NO_SUBJECT))
 184                 {
 185                 if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
 186                 if (!X509_NAME_print(bp,X509_get_subject_name(x),16)) goto err;
 187                 }
 188         if(!(cflag & X509_FLAG_NO_PUBKEY))
 189                 {
 190                 if (BIO_write(bp,"\n        Subject Public Key Info:\n",34) <= 0)
 191                         goto err;
 192                 i=OBJ_obj2nid(ci->key->algor->algorithm);
 193                 if (BIO_printf(bp,"%12sPublic Key Algorithm: %s\n","",
 194                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 195
 196                 pkey=X509_get_pubkey(x);
 197                 if (pkey == NULL)
 198                         {
 199                         BIO_printf(bp,"%12sUnable to load Public Key\n","");
 200                         ERR_print_errors(bp);
 201                         }
 202                 else
 203 #ifndef NO_RSA
 204                 if (pkey->type == EVP_PKEY_RSA)
 205                         {
 206                         BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
 207                         BN_num_bits(pkey->pkey.rsa->n));
 208                         RSA_print(bp,pkey->pkey.rsa,16);
 209                         }
 210                 else
 211 #endif
 212 #ifndef NO_DSA
 213                 if (pkey->type == EVP_PKEY_DSA)
 214                         {
 215                         BIO_printf(bp,"%12sDSA Public Key:\n","");
 216                         DSA_print(bp,pkey->pkey.dsa,16);
 217                         }
 218                 else
 219 #endif
 220                         BIO_printf(bp,"%12sUnknown Public Key:\n","");
 221
 222                 EVP_PKEY_free(pkey);
 223                 }
 224
 225         if (cflag & X509_FLAG_NO_EXTENSIONS)
 226                 n = 0;
 227         else
 228                 n=X509_get_ext_count(x);
 229         if (n > 0)
 230                 {
 231                 BIO_printf(bp,"%8sX509v3 extensions:\n","");
 232                 for (i=0; i<n; i++)
 233                         {
 234                         ASN1_OBJECT *obj;
 235                         ex=X509_get_ext(x,i);
 236                         if (BIO_printf(bp,"%12s","") <= 0) goto err;
 237                         obj=X509_EXTENSION_get_object(ex);
 238                         i2a_ASN1_OBJECT(bp,obj);
 239                         j=X509_EXTENSION_get_critical(ex);
 240                         if (BIO_printf(bp,": %s\n",j?"critical":"","") <= 0)
 241                                 goto err;
 242                         if(!X509V3_EXT_print(bp, ex, 0, 16))
 243                                 {
 244                                 BIO_printf(bp, "%16s", "");
 245                                 M_ASN1_OCTET_STRING_print(bp,ex->value);
 246                                 }
 247                         if (BIO_write(bp,"\n",1) <= 0) goto err;
 248                         }
 249                 }
 250
 251         if(!(cflag & X509_FLAG_NO_SIGDUMP))
 252                 {
 253                 i=OBJ_obj2nid(x->sig_alg->algorithm);
 254                 if (BIO_printf(bp,"%4sSignature Algorithm: %s","",
 255                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 256
 257                 n=x->signature->length;
 258                 s=(char *)x->signature->data;
 259                 for (i=0; i<n; i++)
 260                         {
 261                         if ((i%18) == 0)
 262                                 if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 263                         if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 264                                 ((i+1) == n)?"":":") <= 0) goto err;
 265                         }
 266                 if (BIO_write(bp,"\n",1) != 1) goto err;
 267                 }
 268         if(!(cflag & X509_FLAG_NO_AUX))
 269                 {
 270                 if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
 271                 }
 272         ret=1;
 273 err:
 274         if (str != NULL) ASN1_STRING_free(str);
 275         if (m != NULL) OPENSSL_free(m);
 276         return(ret);
 277         }
 278
 279 int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
 280         {
 281         int i,n;
 282         char buf[80],*p;;
 283
 284         if (v == NULL) return(0);
 285         n=0;
 286         p=(char *)v->data;
 287         for (i=0; i<v->length; i++)
 288                 {
 289                 if ((p[i] > '~') || ((p[i] < ' ') &&
 290                         (p[i] != '\n') && (p[i] != '\r')))
 291                         buf[n]='.';
 292                 else
 293                         buf[n]=p[i];
 294                 n++;
 295                 if (n >= 80)
 296                         {
 297                         if (BIO_write(bp,buf,n) <= 0)
 298                                 return(0);
 299                         n=0;
 300                         }
 301                 }
 302         if (n > 0)
 303                 if (BIO_write(bp,buf,n) <= 0)
 304                         return(0);
 305         return(1);
 306         }
 307
 308 int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
 309 {
 310         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
 311         if(tm->type == V_ASN1_GENERALIZEDTIME)
 312                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
 313         BIO_write(bp,"Bad time value",14);
 314         return(0);
 315 }
 316
 317 static const char *mon[12]=
 318     {
 319     "Jan","Feb","Mar","Apr","May","Jun",
 320     "Jul","Aug","Sep","Oct","Nov","Dec"
 321     };
 322
 323 int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
 324         {
 325         char *v;
 326         int gmt=0;
 327         int i;
 328         int y=0,M=0,d=0,h=0,m=0,s=0;
 329
 330         i=tm->length;
 331         v=(char *)tm->data;
 332
 333         if (i < 12) goto err;
 334         if (v[i-1] == 'Z') gmt=1;
 335         for (i=0; i<12; i++)
 336                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 337         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
 338         M= (v[4]-'0')*10+(v[5]-'0');
 339         if ((M > 12) || (M < 1)) goto err;
 340         d= (v[6]-'0')*10+(v[7]-'0');
 341         h= (v[8]-'0')*10+(v[9]-'0');
 342         m=  (v[10]-'0')*10+(v[11]-'0');
 343         if (    (v[12] >= '0') && (v[12] <= '9') &&
 344                 (v[13] >= '0') && (v[13] <= '9'))
 345                 s=  (v[12]-'0')*10+(v[13]-'0');
 346
 347         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 348                 mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
 349                 return(0);
 350         else
 351                 return(1);
 352 err:
 353         BIO_write(bp,"Bad time value",14);
 354         return(0);
 355         }
 356
 357 int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
 358         {
 359         char *v;
 360         int gmt=0;
 361         int i;
 362         int y=0,M=0,d=0,h=0,m=0,s=0;
 363
 364         i=tm->length;
 365         v=(char *)tm->data;
 366
 367         if (i < 10) goto err;
 368         if (v[i-1] == 'Z') gmt=1;
 369         for (i=0; i<10; i++)
 370                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 371         y= (v[0]-'0')*10+(v[1]-'0');
 372         if (y < 50) y+=100;
 373         M= (v[2]-'0')*10+(v[3]-'0');
 374         if ((M > 12) || (M < 1)) goto err;
 375         d= (v[4]-'0')*10+(v[5]-'0');
 376         h= (v[6]-'0')*10+(v[7]-'0');
 377         m=  (v[8]-'0')*10+(v[9]-'0');
 378         if (    (v[10] >= '0') && (v[10] <= '9') &&
 379                 (v[11] >= '0') && (v[11] <= '9'))
 380                 s=  (v[10]-'0')*10+(v[11]-'0');
 381
 382         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 383                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
 384                 return(0);
 385         else
 386                 return(1);
 387 err:
 388         BIO_write(bp,"Bad time value",14);
 389         return(0);
 390         }
 391
 392 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
 393         {
 394         char *s,*c;
 395         int ret=0,l,ll,i,first=1;
 396         char buf[256];
 397
 398         ll=80-2-obase;
 399
 400         s=X509_NAME_oneline(name,buf,256);
 401         s++; /* skip the first slash */
 402
 403         l=ll;
 404         c=s;
 405         for (;;)
 406                 {
 407 #ifndef CHARSET_EBCDIC
 408                 if (    ((*s == '/') &&
 409                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
 410                                         (s[2] == '=') ||
 411                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
 412                                         (s[3] == '='))
 413                                  ))) ||
 414                         (*s == '\0'))
 415 #else
 416                 if (    ((*s == '/') &&
 417                                 (isupper(s[1]) && (
 418                                         (s[2] == '=') ||
 419                                         (isupper(s[2]) &&
 420                                         (s[3] == '='))
 421                                  ))) ||
 422                         (*s == '\0'))
 423 #endif
 424                         {
 425                         if ((l <= 0) && !first)
 426                                 {
 427                                 first=0;
 428                                 if (BIO_write(bp,"\n",1) != 1) goto err;
 429                                 for (i=0; i<obase; i++)
 430                                         {
 431                                         if (BIO_write(bp," ",1) != 1) goto err;
 432                                         }
 433                                 l=ll;
 434                                 }
 435                         i=s-c;
 436                         if (BIO_write(bp,c,i) != i) goto err;
 437                         c+=i;
 438                         c++;
 439                         if (*s != '\0')
 440                                 {
 441                                 if (BIO_write(bp,", ",2) != 2) goto err;
 442                                 }
 443                         l--;
 444                         }
 445                 if (*s == '\0') break;
 446                 s++;
 447                 l--;
 448                 }
 449
 450         ret=1;
 451         if (0)
 452                 {
 453 err:
 454                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
 455                 }
 456         return(ret);
 457         }
 458