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         int nmindent = 0;
 107         X509_CINF *ci;
 108         ASN1_INTEGER *bs;
 109         EVP_PKEY *pkey=NULL;
 110         const char *neg;
 111         X509_EXTENSION *ex;
 112         ASN1_STRING *str=NULL;
 113
 114         if((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
 115                         mlch = '\n';
 116                         nmindent = 16;
 117         }
 118
 119         if(nmflags == X509_FLAG_COMPAT)
 120                 nmindent = 16;
 121
 122         ci=x->cert_info;
 123         if(!(cflag & X509_FLAG_NO_HEADER))
 124                 {
 125                 if (BIO_write(bp,"Certificate:\n",13) <= 0) goto err;
 126                 if (BIO_write(bp,"    Data:\n",10) <= 0) goto err;
 127                 }
 128         if(!(cflag & X509_FLAG_NO_VERSION))
 129                 {
 130                 l=X509_get_version(x);
 131                 if (BIO_printf(bp,"%8sVersion: %lu (0x%lx)\n","",l+1,l) <= 0) goto err;
 132                 }
 133         if(!(cflag & X509_FLAG_NO_SERIAL))
 134                 {
 135
 136                 if (BIO_write(bp,"        Serial Number:",22) <= 0) goto err;
 137
 138                 bs=X509_get_serialNumber(x);
 139                 if (bs->length <= 4)
 140                         {
 141                         l=ASN1_INTEGER_get(bs);
 142                         if (l < 0)
 143                                 {
 144                                 l= -l;
 145                                 neg="-";
 146                                 }
 147                         else
 148                                 neg="";
 149                         if (BIO_printf(bp," %s%lu (%s0x%lx)\n",neg,l,neg,l) <= 0)
 150                                 goto err;
 151                         }
 152                 else
 153                         {
 154                         neg=(bs->type == V_ASN1_NEG_INTEGER)?" (Negative)":"";
 155                         if (BIO_printf(bp,"\n%12s%s","",neg) <= 0) goto err;
 156
 157                         for (i=0; i<bs->length; i++)
 158                                 {
 159                                 if (BIO_printf(bp,"%02x%c",bs->data[i],
 160                                         ((i+1 == bs->length)?'\n':':')) <= 0)
 161                                         goto err;
 162                                 }
 163                         }
 164
 165                 }
 166
 167         if(!(cflag & X509_FLAG_NO_SIGNAME))
 168                 {
 169                 i=OBJ_obj2nid(ci->signature->algorithm);
 170                 if (BIO_printf(bp,"%8sSignature Algorithm: %s\n","",
 171                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0)
 172                         goto err;
 173                 }
 174
 175         if(!(cflag & X509_FLAG_NO_ISSUER))
 176                 {
 177                 if (BIO_printf(bp,"        Issuer:%c",mlch) <= 0) goto err;
 178                 if (!X509_NAME_print_ex(bp,X509_get_issuer_name(x),nmindent, nmflags)) goto err;
 179                 }
 180         if(!(cflag & X509_FLAG_NO_VALIDITY))
 181                 {
 182                 if (BIO_write(bp,"\n        Validity\n",18) <= 0) goto err;
 183                 if (BIO_write(bp,"            Not Before: ",24) <= 0) goto err;
 184                 if (!ASN1_TIME_print(bp,X509_get_notBefore(x))) goto err;
 185                 if (BIO_write(bp,"\n            Not After : ",25) <= 0) goto err;
 186                 if (!ASN1_TIME_print(bp,X509_get_notAfter(x))) goto err;
 187                 if (BIO_write(bp,"\n",1) <= 0) goto err;
 188                 }
 189         if(!(cflag & X509_FLAG_NO_SUBJECT))
 190                 {
 191                 if (BIO_printf(bp,"        Subject:%c",mlch) <= 0) goto err;
 192                 if (!X509_NAME_print_ex(bp,X509_get_subject_name(x),nmindent, nmflags)) goto err;
 193                 }
 194         if(!(cflag & X509_FLAG_NO_PUBKEY))
 195                 {
 196                 if (BIO_write(bp,"\n        Subject Public Key Info:\n",34) <= 0)
 197                         goto err;
 198                 i=OBJ_obj2nid(ci->key->algor->algorithm);
 199                 if (BIO_printf(bp,"%12sPublic Key Algorithm: %s\n","",
 200                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 201
 202                 pkey=X509_get_pubkey(x);
 203                 if (pkey == NULL)
 204                         {
 205                         BIO_printf(bp,"%12sUnable to load Public Key\n","");
 206                         ERR_print_errors(bp);
 207                         }
 208                 else
 209 #ifndef NO_RSA
 210                 if (pkey->type == EVP_PKEY_RSA)
 211                         {
 212                         BIO_printf(bp,"%12sRSA Public Key: (%d bit)\n","",
 213                         BN_num_bits(pkey->pkey.rsa->n));
 214                         RSA_print(bp,pkey->pkey.rsa,16);
 215                         }
 216                 else
 217 #endif
 218 #ifndef NO_DSA
 219                 if (pkey->type == EVP_PKEY_DSA)
 220                         {
 221                         BIO_printf(bp,"%12sDSA Public Key:\n","");
 222                         DSA_print(bp,pkey->pkey.dsa,16);
 223                         }
 224                 else
 225 #endif
 226                         BIO_printf(bp,"%12sUnknown Public Key:\n","");
 227
 228                 EVP_PKEY_free(pkey);
 229                 }
 230
 231         if (cflag & X509_FLAG_NO_EXTENSIONS)
 232                 n = 0;
 233         else
 234                 n=X509_get_ext_count(x);
 235         if (n > 0)
 236                 {
 237                 BIO_printf(bp,"%8sX509v3 extensions:\n","");
 238                 for (i=0; i<n; i++)
 239                         {
 240                         ASN1_OBJECT *obj;
 241                         ex=X509_get_ext(x,i);
 242                         if (BIO_printf(bp,"%12s","") <= 0) goto err;
 243                         obj=X509_EXTENSION_get_object(ex);
 244                         i2a_ASN1_OBJECT(bp,obj);
 245                         j=X509_EXTENSION_get_critical(ex);
 246                         if (BIO_printf(bp,": %s\n",j?"critical":"","") <= 0)
 247                                 goto err;
 248                         if(!X509V3_EXT_print(bp, ex, cflag, 16))
 249                                 {
 250                                 BIO_printf(bp, "%16s", "");
 251                                 M_ASN1_OCTET_STRING_print(bp,ex->value);
 252                                 }
 253                         if (BIO_write(bp,"\n",1) <= 0) goto err;
 254                         }
 255                 }
 256
 257         if(!(cflag & X509_FLAG_NO_SIGDUMP))
 258                 {
 259                 i=OBJ_obj2nid(x->sig_alg->algorithm);
 260                 if (BIO_printf(bp,"%4sSignature Algorithm: %s","",
 261                         (i == NID_undef)?"UNKNOWN":OBJ_nid2ln(i)) <= 0) goto err;
 262
 263                 n=x->signature->length;
 264                 s=(char *)x->signature->data;
 265                 for (i=0; i<n; i++)
 266                         {
 267                         if ((i%18) == 0)
 268                                 if (BIO_write(bp,"\n        ",9) <= 0) goto err;
 269                         if (BIO_printf(bp,"%02x%s",(unsigned char)s[i],
 270                                 ((i+1) == n)?"":":") <= 0) goto err;
 271                         }
 272                 if (BIO_write(bp,"\n",1) != 1) goto err;
 273                 }
 274         if(!(cflag & X509_FLAG_NO_AUX))
 275                 {
 276                 if (!X509_CERT_AUX_print(bp, x->aux, 0)) goto err;
 277                 }
 278         ret=1;
 279 err:
 280         if (str != NULL) ASN1_STRING_free(str);
 281         if (m != NULL) OPENSSL_free(m);
 282         return(ret);
 283         }
 284
 285 int ASN1_STRING_print(BIO *bp, ASN1_STRING *v)
 286         {
 287         int i,n;
 288         char buf[80],*p;;
 289
 290         if (v == NULL) return(0);
 291         n=0;
 292         p=(char *)v->data;
 293         for (i=0; i<v->length; i++)
 294                 {
 295                 if ((p[i] > '~') || ((p[i] < ' ') &&
 296                         (p[i] != '\n') && (p[i] != '\r')))
 297                         buf[n]='.';
 298                 else
 299                         buf[n]=p[i];
 300                 n++;
 301                 if (n >= 80)
 302                         {
 303                         if (BIO_write(bp,buf,n) <= 0)
 304                                 return(0);
 305                         n=0;
 306                         }
 307                 }
 308         if (n > 0)
 309                 if (BIO_write(bp,buf,n) <= 0)
 310                         return(0);
 311         return(1);
 312         }
 313
 314 int ASN1_TIME_print(BIO *bp, ASN1_TIME *tm)
 315 {
 316         if(tm->type == V_ASN1_UTCTIME) return ASN1_UTCTIME_print(bp, tm);
 317         if(tm->type == V_ASN1_GENERALIZEDTIME)
 318                                 return ASN1_GENERALIZEDTIME_print(bp, tm);
 319         BIO_write(bp,"Bad time value",14);
 320         return(0);
 321 }
 322
 323 static const char *mon[12]=
 324     {
 325     "Jan","Feb","Mar","Apr","May","Jun",
 326     "Jul","Aug","Sep","Oct","Nov","Dec"
 327     };
 328
 329 int ASN1_GENERALIZEDTIME_print(BIO *bp, ASN1_GENERALIZEDTIME *tm)
 330         {
 331         char *v;
 332         int gmt=0;
 333         int i;
 334         int y=0,M=0,d=0,h=0,m=0,s=0;
 335
 336         i=tm->length;
 337         v=(char *)tm->data;
 338
 339         if (i < 12) goto err;
 340         if (v[i-1] == 'Z') gmt=1;
 341         for (i=0; i<12; i++)
 342                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 343         y= (v[0]-'0')*1000+(v[1]-'0')*100 + (v[2]-'0')*10+(v[3]-'0');
 344         M= (v[4]-'0')*10+(v[5]-'0');
 345         if ((M > 12) || (M < 1)) goto err;
 346         d= (v[6]-'0')*10+(v[7]-'0');
 347         h= (v[8]-'0')*10+(v[9]-'0');
 348         m=  (v[10]-'0')*10+(v[11]-'0');
 349         if (    (v[12] >= '0') && (v[12] <= '9') &&
 350                 (v[13] >= '0') && (v[13] <= '9'))
 351                 s=  (v[12]-'0')*10+(v[13]-'0');
 352
 353         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 354                 mon[M-1],d,h,m,s,y,(gmt)?" GMT":"") <= 0)
 355                 return(0);
 356         else
 357                 return(1);
 358 err:
 359         BIO_write(bp,"Bad time value",14);
 360         return(0);
 361         }
 362
 363 int ASN1_UTCTIME_print(BIO *bp, ASN1_UTCTIME *tm)
 364         {
 365         char *v;
 366         int gmt=0;
 367         int i;
 368         int y=0,M=0,d=0,h=0,m=0,s=0;
 369
 370         i=tm->length;
 371         v=(char *)tm->data;
 372
 373         if (i < 10) goto err;
 374         if (v[i-1] == 'Z') gmt=1;
 375         for (i=0; i<10; i++)
 376                 if ((v[i] > '9') || (v[i] < '0')) goto err;
 377         y= (v[0]-'0')*10+(v[1]-'0');
 378         if (y < 50) y+=100;
 379         M= (v[2]-'0')*10+(v[3]-'0');
 380         if ((M > 12) || (M < 1)) goto err;
 381         d= (v[4]-'0')*10+(v[5]-'0');
 382         h= (v[6]-'0')*10+(v[7]-'0');
 383         m=  (v[8]-'0')*10+(v[9]-'0');
 384         if (    (v[10] >= '0') && (v[10] <= '9') &&
 385                 (v[11] >= '0') && (v[11] <= '9'))
 386                 s=  (v[10]-'0')*10+(v[11]-'0');
 387
 388         if (BIO_printf(bp,"%s %2d %02d:%02d:%02d %d%s",
 389                 mon[M-1],d,h,m,s,y+1900,(gmt)?" GMT":"") <= 0)
 390                 return(0);
 391         else
 392                 return(1);
 393 err:
 394         BIO_write(bp,"Bad time value",14);
 395         return(0);
 396         }
 397
 398 int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
 399         {
 400         char *s,*c;
 401         int ret=0,l,ll,i,first=1;
 402         char buf[256];
 403
 404         ll=80-2-obase;
 405
 406         s=X509_NAME_oneline(name,buf,256);
 407         s++; /* skip the first slash */
 408
 409         l=ll;
 410         c=s;
 411         for (;;)
 412                 {
 413 #ifndef CHARSET_EBCDIC
 414                 if (    ((*s == '/') &&
 415                                 ((s[1] >= 'A') && (s[1] <= 'Z') && (
 416                                         (s[2] == '=') ||
 417                                         ((s[2] >= 'A') && (s[2] <= 'Z') &&
 418                                         (s[3] == '='))
 419                                  ))) ||
 420                         (*s == '\0'))
 421 #else
 422                 if (    ((*s == '/') &&
 423                                 (isupper(s[1]) && (
 424                                         (s[2] == '=') ||
 425                                         (isupper(s[2]) &&
 426                                         (s[3] == '='))
 427                                  ))) ||
 428                         (*s == '\0'))
 429 #endif
 430                         {
 431                         if ((l <= 0) && !first)
 432                                 {
 433                                 first=0;
 434                                 if (BIO_write(bp,"\n",1) != 1) goto err;
 435                                 for (i=0; i<obase; i++)
 436                                         {
 437                                         if (BIO_write(bp," ",1) != 1) goto err;
 438                                         }
 439                                 l=ll;
 440                                 }
 441                         i=s-c;
 442                         if (BIO_write(bp,c,i) != i) goto err;
 443                         c+=i;
 444                         c++;
 445                         if (*s != '\0')
 446                                 {
 447                                 if (BIO_write(bp,", ",2) != 2) goto err;
 448                                 }
 449                         l--;
 450                         }
 451                 if (*s == '\0') break;
 452                 s++;
 453                 l--;
 454                 }
 455
 456         ret=1;
 457         if (0)
 458                 {
 459 err:
 460                 X509err(X509_F_X509_NAME_PRINT,ERR_R_BUF_LIB);
 461                 }
 462         return(ret);
 463         }
 464