crypto/x509/x509_vfy.c

   1 /* crypto/x509/x509_vfy.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 <time.h>
  61 #include <errno.h>
  62 #include <sys/types.h>
  63 #include <sys/stat.h>
  64
  65 #include "crypto.h"
  66 #include "cryptlib.h"
  67 #include "lhash.h"
  68 #include "buffer.h"
  69 #include "evp.h"
  70 #include "asn1.h"
  71 #include "x509.h"
  72 #include "objects.h"
  73
  74 #ifndef NOPROTO
  75 static int null_callback(int ok,X509_STORE_CTX *e);
  76 static int internal_verify(X509_STORE_CTX *ctx);
  77 #else
  78 static int null_callback();
  79 static int internal_verify();
  80 #endif
  81
  82 char *X509_version="X.509" OPENSSL_VERSION_PTEXT;
  83
  84 static STACK *x509_store_ctx_method=NULL;
  85 static int x509_store_ctx_num=0;
  86 #if 0
  87 static int x509_store_num=1;
  88 static STACK *x509_store_method=NULL;
  89 #endif
  90
  91 static int null_callback(ok,e)
  92 int ok;
  93 X509_STORE_CTX *e;
  94         {
  95         return(ok);
  96         }
  97
  98 #if 0
  99 static int x509_subject_cmp(a,b)
 100 X509 **a,**b;
 101         {
 102         return(X509_subject_name_cmp(*a,*b));
 103         }
 104 #endif
 105
 106 int X509_verify_cert(ctx)
 107 X509_STORE_CTX *ctx;
 108         {
 109         X509 *x,*xtmp,*chain_ss=NULL;
 110         X509_NAME *xn;
 111         X509_OBJECT obj;
 112         int depth,i,ok=0;
 113         int num;
 114         int (*cb)();
 115         STACK_OF(X509) *sktmp=NULL;
 116
 117         if (ctx->cert == NULL)
 118                 {
 119                 X509err(X509_F_X509_VERIFY_CERT,X509_R_NO_CERT_SET_FOR_US_TO_VERIFY);
 120                 return(-1);
 121                 }
 122
 123         cb=ctx->ctx->verify_cb;
 124         if (cb == NULL) cb=null_callback;
 125
 126         /* first we make sure the chain we are going to build is
 127          * present and that the first entry is in place */
 128         if (ctx->chain == NULL)
 129                 {
 130                 if (    ((ctx->chain=sk_new_null()) == NULL) ||
 131                         (!sk_push(ctx->chain,(char *)ctx->cert)))
 132                         {
 133                         X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 134                         goto end;
 135                         }
 136                 CRYPTO_add(&ctx->cert->references,1,CRYPTO_LOCK_X509);
 137                 ctx->last_untrusted=1;
 138                 }
 139
 140         /* We use a temporary so we can chop and hack at it */
 141         if (ctx->untrusted != NULL
 142             && (sktmp=sk_X509_dup(ctx->untrusted)) == NULL)
 143                 {
 144                 X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 145                 goto end;
 146                 }
 147
 148         num=sk_num(ctx->chain);
 149         x=(X509 *)sk_value(ctx->chain,num-1);
 150         depth=ctx->depth;
 151
 152
 153         for (;;)
 154                 {
 155                 /* If we have enough, we break */
 156                 if (depth <= num) break;
 157
 158                 /* If we are self signed, we break */
 159                 xn=X509_get_issuer_name(x);
 160                 if (X509_NAME_cmp(X509_get_subject_name(x),xn) == 0)
 161                         break;
 162
 163                 /* If we were passed a cert chain, use it first */
 164                 if (ctx->untrusted != NULL)
 165                         {
 166                         xtmp=X509_find_by_subject(sktmp,xn);
 167                         if (xtmp != NULL)
 168                                 {
 169                                 if (!sk_push(ctx->chain,(char *)xtmp))
 170                                         {
 171                                         X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 172                                         goto end;
 173                                         }
 174                                 CRYPTO_add(&xtmp->references,1,CRYPTO_LOCK_X509);
 175                                 sk_X509_delete_ptr(sktmp,xtmp);
 176                                 ctx->last_untrusted++;
 177                                 x=xtmp;
 178                                 num++;
 179                                 /* reparse the full chain for
 180                                  * the next one */
 181                                 continue;
 182                                 }
 183                         }
 184                 break;
 185                 }
 186
 187         /* at this point, chain should contain a list of untrusted
 188          * certificates.  We now need to add at least one trusted one,
 189          * if possible, otherwise we complain. */
 190
 191         i=sk_num(ctx->chain);
 192         x=(X509 *)sk_value(ctx->chain,i-1);
 193         if (X509_NAME_cmp(X509_get_subject_name(x),X509_get_issuer_name(x))
 194                 == 0)
 195                 {
 196                 /* we have a self signed certificate */
 197                 if (sk_num(ctx->chain) == 1)
 198                         {
 199                         ctx->error=X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT;
 200                         ctx->current_cert=x;
 201                         ctx->error_depth=i-1;
 202                         ok=cb(0,ctx);
 203                         if (!ok) goto end;
 204                         }
 205                 else
 206                         {
 207                         /* worry more about this one elsewhere */
 208                         chain_ss=(X509 *)sk_pop(ctx->chain);
 209                         ctx->last_untrusted--;
 210                         num--;
 211                         x=(X509 *)sk_value(ctx->chain,num-1);
 212                         }
 213                 }
 214
 215         /* We now lookup certs from the certificate store */
 216         for (;;)
 217                 {
 218                 /* If we have enough, we break */
 219                 if (depth <= num) break;
 220
 221                 /* If we are self signed, we break */
 222                 xn=X509_get_issuer_name(x);
 223                 if (X509_NAME_cmp(X509_get_subject_name(x),xn) == 0)
 224                         break;
 225
 226                 ok=X509_STORE_get_by_subject(ctx,X509_LU_X509,xn,&obj);
 227                 if (ok != X509_LU_X509)
 228                         {
 229                         if (ok == X509_LU_RETRY)
 230                                 {
 231                                 X509_OBJECT_free_contents(&obj);
 232                                 X509err(X509_F_X509_VERIFY_CERT,X509_R_SHOULD_RETRY);
 233                                 return(ok);
 234                                 }
 235                         else if (ok != X509_LU_FAIL)
 236                                 {
 237                                 X509_OBJECT_free_contents(&obj);
 238                                 /* not good :-(, break anyway */
 239                                 return(ok);
 240                                 }
 241                         break;
 242                         }
 243                 x=obj.data.x509;
 244                 if (!sk_push(ctx->chain,(char *)obj.data.x509))
 245                         {
 246                         X509_OBJECT_free_contents(&obj);
 247                         X509err(X509_F_X509_VERIFY_CERT,ERR_R_MALLOC_FAILURE);
 248                         return(0);
 249                         }
 250                 num++;
 251                 }
 252
 253         /* we now have our chain, lets check it... */
 254         xn=X509_get_issuer_name(x);
 255         if (X509_NAME_cmp(X509_get_subject_name(x),xn) != 0)
 256                 {
 257                 if ((chain_ss == NULL) || (X509_NAME_cmp(X509_get_subject_name(chain_ss),xn) != 0))
 258                         {
 259                         if (ctx->last_untrusted >= num)
 260                                 ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY;
 261                         else
 262                                 ctx->error=X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT;
 263                         ctx->current_cert=x;
 264                         }
 265                 else
 266                         {
 267
 268                         sk_push(ctx->chain,(char *)chain_ss);
 269                         num++;
 270                         ctx->last_untrusted=num;
 271                         ctx->current_cert=chain_ss;
 272                         ctx->error=X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN;
 273                         chain_ss=NULL;
 274                         }
 275
 276                 ctx->error_depth=num-1;
 277                 ok=cb(0,ctx);
 278                 if (!ok) goto end;
 279                 }
 280
 281         /* We may as well copy down any DSA parameters that are required */
 282         X509_get_pubkey_parameters(NULL,ctx->chain);
 283
 284         /* At this point, we have a chain and just need to verify it */
 285         if (ctx->ctx->verify != NULL)
 286                 ok=ctx->ctx->verify(ctx);
 287         else
 288                 ok=internal_verify(ctx);
 289         if (0)
 290                 {
 291 end:
 292                 X509_get_pubkey_parameters(NULL,ctx->chain);
 293                 }
 294         if (sktmp != NULL) sk_X509_free(sktmp);
 295         if (chain_ss != NULL) X509_free(chain_ss);
 296         return(ok);
 297         }
 298
 299 static int internal_verify(ctx)
 300 X509_STORE_CTX *ctx;
 301         {
 302         int i,ok=0,n;
 303         X509 *xs,*xi;
 304         EVP_PKEY *pkey=NULL;
 305         int (*cb)();
 306
 307         cb=ctx->ctx->verify_cb;
 308         if (cb == NULL) cb=null_callback;
 309
 310         n=sk_num(ctx->chain);
 311         ctx->error_depth=n-1;
 312         n--;
 313         xi=(X509 *)sk_value(ctx->chain,n);
 314         if (X509_NAME_cmp(X509_get_subject_name(xi),
 315                 X509_get_issuer_name(xi)) == 0)
 316                 xs=xi;
 317         else
 318                 {
 319                 if (n <= 0)
 320                         {
 321                         ctx->error=X509_V_ERR_UNABLE_TO_VERIFY_LEAF_SIGNATURE;
 322                         ctx->current_cert=xi;
 323                         ok=cb(0,ctx);
 324                         goto end;
 325                         }
 326                 else
 327                         {
 328                         n--;
 329                         ctx->error_depth=n;
 330                         xs=(X509 *)sk_value(ctx->chain,n);
 331                         }
 332                 }
 333
 334 /*      ctx->error=0;  not needed */
 335         while (n >= 0)
 336                 {
 337                 ctx->error_depth=n;
 338                 if (!xs->valid)
 339                         {
 340                         if ((pkey=X509_get_pubkey(xi)) == NULL)
 341                                 {
 342                                 ctx->error=X509_V_ERR_UNABLE_TO_DECODE_ISSUER_PUBLIC_KEY;
 343                                 ctx->current_cert=xi;
 344                                 ok=(*cb)(0,ctx);
 345                                 if (!ok) goto end;
 346                                 }
 347                         if (X509_verify(xs,pkey) <= 0)
 348                                 {
 349                                 EVP_PKEY_free(pkey);
 350                                 ctx->error=X509_V_ERR_CERT_SIGNATURE_FAILURE;
 351                                 ctx->current_cert=xs;
 352                                 ok=(*cb)(0,ctx);
 353                                 if (!ok) goto end;
 354                                 }
 355                         EVP_PKEY_free(pkey);
 356                         pkey=NULL;
 357
 358                         i=X509_cmp_current_time(X509_get_notBefore(xs));
 359                         if (i == 0)
 360                                 {
 361                                 ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD;
 362                                 ctx->current_cert=xs;
 363                                 ok=(*cb)(0,ctx);
 364                                 if (!ok) goto end;
 365                                 }
 366                         if (i > 0)
 367                                 {
 368                                 ctx->error=X509_V_ERR_CERT_NOT_YET_VALID;
 369                                 ctx->current_cert=xs;
 370                                 ok=(*cb)(0,ctx);
 371                                 if (!ok) goto end;
 372                                 }
 373                         xs->valid=1;
 374                         }
 375
 376                 i=X509_cmp_current_time(X509_get_notAfter(xs));
 377                 if (i == 0)
 378                         {
 379                         ctx->error=X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD;
 380                         ctx->current_cert=xs;
 381                         ok=(*cb)(0,ctx);
 382                         if (!ok) goto end;
 383                         }
 384
 385                 if (i < 0)
 386                         {
 387                         ctx->error=X509_V_ERR_CERT_HAS_EXPIRED;
 388                         ctx->current_cert=xs;
 389                         ok=(*cb)(0,ctx);
 390                         if (!ok) goto end;
 391                         }
 392
 393                 /* CRL CHECK */
 394
 395                 /* The last error (if any) is still in the error value */
 396                 ctx->current_cert=xs;
 397                 ok=(*cb)(1,ctx);
 398                 if (!ok) goto end;
 399
 400                 n--;
 401                 if (n >= 0)
 402                         {
 403                         xi=xs;
 404                         xs=(X509 *)sk_value(ctx->chain,n);
 405                         }
 406                 }
 407         ok=1;
 408 end:
 409         return(ok);
 410         }
 411
 412 int X509_cmp_current_time(ctm)
 413 ASN1_UTCTIME *ctm;
 414         {
 415         char *str;
 416         ASN1_UTCTIME atm;
 417         time_t offset;
 418         char buff1[24],buff2[24],*p;
 419         int i,j;
 420
 421         p=buff1;
 422         i=ctm->length;
 423         str=(char *)ctm->data;
 424         if ((i < 11) || (i > 17)) return(0);
 425         memcpy(p,str,10);
 426         p+=10;
 427         str+=10;
 428
 429         if ((*str == 'Z') || (*str == '-') || (*str == '+'))
 430                 { *(p++)='0'; *(p++)='0'; }
 431         else    { *(p++)= *(str++); *(p++)= *(str++); }
 432         *(p++)='Z';
 433         *(p++)='\0';
 434
 435         if (*str == 'Z')
 436                 offset=0;
 437         else
 438                 {
 439                 if ((*str != '+') && (str[5] != '-'))
 440                         return(0);
 441                 offset=((str[1]-'0')*10+(str[2]-'0'))*60;
 442                 offset+=(str[3]-'0')*10+(str[4]-'0');
 443                 if (*str == '-')
 444                         offset= -offset;
 445                 }
 446         atm.type=V_ASN1_UTCTIME;
 447         atm.length=sizeof(buff2);
 448         atm.data=(unsigned char *)buff2;
 449
 450         X509_gmtime_adj(&atm,-offset);
 451
 452         i=(buff1[0]-'0')*10+(buff1[1]-'0');
 453         if (i < 50) i+=100; /* cf. RFC 2459 */
 454         j=(buff2[0]-'0')*10+(buff2[1]-'0');
 455         if (j < 50) j+=100;
 456
 457         if (i < j) return (-1);
 458         if (i > j) return (1);
 459         i=strcmp(buff1,buff2);
 460         if (i == 0) /* wait a second then return younger :-) */
 461                 return(-1);
 462         else
 463                 return(i);
 464         }
 465
 466 ASN1_UTCTIME *X509_gmtime_adj(s, adj)
 467 ASN1_UTCTIME *s;
 468 long adj;
 469         {
 470         time_t t;
 471
 472         time(&t);
 473         t+=adj;
 474         return(ASN1_UTCTIME_set(s,t));
 475         }
 476
 477 int X509_get_pubkey_parameters(pkey,chain)
 478 EVP_PKEY *pkey;
 479 STACK *chain;
 480         {
 481         EVP_PKEY *ktmp=NULL,*ktmp2;
 482         int i,j;
 483
 484         if ((pkey != NULL) && !EVP_PKEY_missing_parameters(pkey)) return(1);
 485
 486         for (i=0; i<sk_num(chain); i++)
 487                 {
 488                 ktmp=X509_get_pubkey((X509 *)sk_value(chain,i));
 489                 if (ktmp == NULL)
 490                         {
 491                         X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_GET_CERTS_PUBLIC_KEY);
 492                         return(0);
 493                         }
 494                 if (!EVP_PKEY_missing_parameters(ktmp))
 495                         break;
 496                 else
 497                         {
 498                         EVP_PKEY_free(ktmp);
 499                         ktmp=NULL;
 500                         }
 501                 }
 502         if (ktmp == NULL)
 503                 {
 504                 X509err(X509_F_X509_GET_PUBKEY_PARAMETERS,X509_R_UNABLE_TO_FIND_PARAMETERS_IN_CHAIN);
 505                 return(0);
 506                 }
 507
 508         /* first, populate the other certs */
 509         for (j=i-1; j >= 0; j--)
 510                 {
 511                 ktmp2=X509_get_pubkey((X509 *)sk_value(chain,j));
 512                 EVP_PKEY_copy_parameters(ktmp2,ktmp);
 513                 EVP_PKEY_free(ktmp2);
 514                 }
 515
 516         if (pkey != NULL) EVP_PKEY_copy_parameters(pkey,ktmp);
 517         EVP_PKEY_free(ktmp);
 518         return(1);
 519         }
 520
 521 int X509_STORE_add_cert(ctx,x)
 522 X509_STORE *ctx;
 523 X509 *x;
 524         {
 525         X509_OBJECT *obj,*r;
 526         int ret=1;
 527
 528         if (x == NULL) return(0);
 529         obj=(X509_OBJECT *)Malloc(sizeof(X509_OBJECT));
 530         if (obj == NULL)
 531                 {
 532                 X509err(X509_F_X509_STORE_ADD_CERT,ERR_R_MALLOC_FAILURE);
 533                 return(0);
 534                 }
 535         obj->type=X509_LU_X509;
 536         obj->data.x509=x;
 537
 538         CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
 539
 540         X509_OBJECT_up_ref_count(obj);
 541
 542         r=(X509_OBJECT *)lh_insert(ctx->certs,(char *)obj);
 543         if (r != NULL)
 544                 { /* oops, put it back */
 545                 lh_delete(ctx->certs,(char *)obj);
 546                 X509_OBJECT_free_contents(obj);
 547                 Free(obj);
 548                 lh_insert(ctx->certs,(char *)r);
 549                 X509err(X509_F_X509_STORE_ADD_CERT,X509_R_CERT_ALREADY_IN_HASH_TABLE);
 550                 ret=0;
 551                 }
 552
 553         CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
 554
 555         return(ret);
 556         }
 557
 558 int X509_STORE_add_crl(ctx,x)
 559 X509_STORE *ctx;
 560 X509_CRL *x;
 561         {
 562         X509_OBJECT *obj,*r;
 563         int ret=1;
 564
 565         if (x == NULL) return(0);
 566         obj=(X509_OBJECT *)Malloc(sizeof(X509_OBJECT));
 567         if (obj == NULL)
 568                 {
 569                 X509err(X509_F_X509_STORE_ADD_CRL,ERR_R_MALLOC_FAILURE);
 570                 return(0);
 571                 }
 572         obj->type=X509_LU_CRL;
 573         obj->data.crl=x;
 574
 575         CRYPTO_w_lock(CRYPTO_LOCK_X509_STORE);
 576
 577         X509_OBJECT_up_ref_count(obj);
 578
 579         r=(X509_OBJECT *)lh_insert(ctx->certs,(char *)obj);
 580         if (r != NULL)
 581                 { /* oops, put it back */
 582                 lh_delete(ctx->certs,(char *)obj);
 583                 X509_OBJECT_free_contents(obj);
 584                 Free(obj);
 585                 lh_insert(ctx->certs,(char *)r);
 586                 X509err(X509_F_X509_STORE_ADD_CRL,X509_R_CERT_ALREADY_IN_HASH_TABLE);
 587                 ret=0;
 588                 }
 589
 590         CRYPTO_w_unlock(CRYPTO_LOCK_X509_STORE);
 591
 592         return(ret);
 593         }
 594
 595 int X509_STORE_CTX_get_ex_new_index(argl,argp,new_func,dup_func,free_func)
 596 long argl;
 597 char *argp;
 598 int (*new_func)();
 599 int (*dup_func)();
 600 void (*free_func)();
 601         {
 602         x509_store_ctx_num++;
 603         return(CRYPTO_get_ex_new_index(x509_store_ctx_num-1,
 604                 &x509_store_ctx_method,
 605                 argl,argp,new_func,dup_func,free_func));
 606         }
 607
 608 int X509_STORE_CTX_set_ex_data(ctx,idx,data)
 609 X509_STORE_CTX *ctx;
 610 int idx;
 611 void *data;
 612         {
 613         return(CRYPTO_set_ex_data(&ctx->ex_data,idx,data));
 614         }
 615
 616 void *X509_STORE_CTX_get_ex_data(ctx,idx)
 617 X509_STORE_CTX *ctx;
 618 int idx;
 619         {
 620         return(CRYPTO_get_ex_data(&ctx->ex_data,idx));
 621         }
 622
 623 int X509_STORE_CTX_get_error(ctx)
 624 X509_STORE_CTX *ctx;
 625         {
 626         return(ctx->error);
 627         }
 628
 629 void X509_STORE_CTX_set_error(ctx,err)
 630 X509_STORE_CTX *ctx;
 631 int err;
 632         {
 633         ctx->error=err;
 634         }
 635
 636 int X509_STORE_CTX_get_error_depth(ctx)
 637 X509_STORE_CTX *ctx;
 638         {
 639         return(ctx->error_depth);
 640         }
 641
 642 X509 *X509_STORE_CTX_get_current_cert(ctx)
 643 X509_STORE_CTX *ctx;
 644         {
 645         return(ctx->current_cert);
 646         }
 647
 648 STACK *X509_STORE_CTX_get_chain(ctx)
 649 X509_STORE_CTX *ctx;
 650         {
 651         return(ctx->chain);
 652         }
 653
 654 void X509_STORE_CTX_set_cert(ctx,x)
 655 X509_STORE_CTX *ctx;
 656 X509 *x;
 657         {
 658         ctx->cert=x;
 659         }
 660
 661 void X509_STORE_CTX_set_chain(ctx,sk)
 662 X509_STORE_CTX *ctx;
 663 STACK_OF(X509) *sk;
 664         {
 665         ctx->untrusted=sk;
 666         }
 667
 668 IMPLEMENT_STACK_OF(X509)
 669 IMPLEMENT_ASN1_SET_OF(X509)
 670 IMPLEMENT_STACK_OF(X509_NAME)