001edec39a446f6f318ef93971068d5268639f0f
[openssl.git] / crypto / x509v3 / v3_crld.c
1 /* v3_crld.c */
2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
3  * project 1999.
4  */
5 /* ====================================================================
6  * Copyright (c) 1999-2008 The OpenSSL Project.  All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  *
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer. 
14  *
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in
17  *    the documentation and/or other materials provided with the
18  *    distribution.
19  *
20  * 3. All advertising materials mentioning features or use of this
21  *    software must display the following acknowledgment:
22  *    "This product includes software developed by the OpenSSL Project
23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24  *
25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26  *    endorse or promote products derived from this software without
27  *    prior written permission. For written permission, please contact
28  *    licensing@OpenSSL.org.
29  *
30  * 5. Products derived from this software may not be called "OpenSSL"
31  *    nor may "OpenSSL" appear in their names without prior written
32  *    permission of the OpenSSL Project.
33  *
34  * 6. Redistributions of any form whatsoever must retain the following
35  *    acknowledgment:
36  *    "This product includes software developed by the OpenSSL Project
37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38  *
39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50  * OF THE POSSIBILITY OF SUCH DAMAGE.
51  * ====================================================================
52  *
53  * This product includes cryptographic software written by Eric Young
54  * (eay@cryptsoft.com).  This product includes software written by Tim
55  * Hudson (tjh@cryptsoft.com).
56  *
57  */
58
59 #include <stdio.h>
60 #include "cryptlib.h"
61 #include <openssl/conf.h>
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/x509v3.h>
65
66 static void *v2i_crld(X509V3_EXT_METHOD *method,
67                                 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
68 static int i2r_crldp(X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
69                                                                 int indent);
70
71 const X509V3_EXT_METHOD v3_crld =
72         {
73         NID_crl_distribution_points, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
74         0,0,0,0,
75         0,0,
76         0,
77         v2i_crld,
78         i2r_crldp,0,
79         NULL
80         };
81
82 const X509V3_EXT_METHOD v3_freshest_crl =
83         {
84         NID_freshest_crl, 0, ASN1_ITEM_ref(CRL_DIST_POINTS),
85         0,0,0,0,
86         0,0,
87         0,
88         v2i_crld,
89         i2r_crldp,0,
90         NULL
91         };
92
93 static STACK_OF(GENERAL_NAME) *gnames_from_sectname(X509V3_CTX *ctx, char *sect)
94         {
95         STACK_OF(CONF_VALUE) *gnsect;
96         STACK_OF(GENERAL_NAME) *gens;
97         if (*sect == '@')
98                 gnsect = X509V3_get_section(ctx, sect + 1);
99         else
100                 gnsect = X509V3_parse_list(sect);
101         if (!gnsect)
102                 {
103                 X509V3err(X509V3_F_GNAMES_FROM_SECTNAME,
104                                                 X509V3_R_SECTION_NOT_FOUND);
105                 return NULL;
106                 }
107         gens = v2i_GENERAL_NAMES(NULL, ctx, gnsect);
108         if (*sect == '@')
109                 X509V3_section_free(ctx, gnsect);
110         else
111                 sk_CONF_VALUE_pop_free(gnsect, X509V3_conf_free);
112         return gens;
113         }
114
115 static int set_dist_point_name(DIST_POINT_NAME **pdp, X509V3_CTX *ctx,
116                                                         CONF_VALUE *cnf)
117         {
118         STACK_OF(GENERAL_NAME) *fnm = NULL;
119         STACK_OF(X509_NAME_ENTRY) *rnm = NULL;
120         if (!strncmp(cnf->name, "fullname", 9))
121                 {
122                 fnm = gnames_from_sectname(ctx, cnf->value);
123                 if (!fnm)
124                         goto err;
125                 }
126         else if (!strcmp(cnf->name, "relativename"))
127                 {
128                 int ret;
129                 STACK_OF(CONF_VALUE) *dnsect;
130                 X509_NAME *nm;
131                 nm = X509_NAME_new();
132                 if (!nm)
133                         return -1;
134                 dnsect = X509V3_get_section(ctx, cnf->value);
135                 if (!dnsect)
136                         {
137                         X509V3err(X509V3_F_SET_DIST_POINT_NAME,
138                                                 X509V3_R_SECTION_NOT_FOUND);
139                         return -1;
140                         }
141                 ret = X509V3_NAME_from_section(nm, dnsect, MBSTRING_ASC);
142                 X509V3_section_free(ctx, dnsect);
143                 rnm = nm->entries;
144                 nm->entries = NULL;
145                 X509_NAME_free(nm);
146                 if (!ret || sk_X509_NAME_ENTRY_num(rnm) <= 0)
147                         goto err;
148                 /* Since its a name fragment can't have more than one
149                  * RDNSequence
150                  */
151                 if (sk_X509_NAME_ENTRY_value(rnm,
152                                 sk_X509_NAME_ENTRY_num(rnm) - 1)->set)
153                         {
154                         X509V3err(X509V3_F_SET_DIST_POINT_NAME,
155                                                 X509V3_R_INVAID_MULTIPLE_RDNS);
156                         goto err;
157                         }
158                 }
159         else
160                 return 0;
161
162         if (*pdp)
163                 {
164                 X509V3err(X509V3_F_SET_DIST_POINT_NAME,
165                                                 X509V3_R_DISTPOINT_ALREADY_SET);
166                 goto err;
167                 }
168
169         *pdp = DIST_POINT_NAME_new();
170         if (!*pdp)
171                 goto err;
172         if (fnm)
173                 {
174                 (*pdp)->type = 0;
175                 (*pdp)->name.fullname = fnm;
176                 }
177         else
178                 {
179                 (*pdp)->type = 1;
180                 (*pdp)->name.relativename = rnm;
181                 }
182
183         return 1;
184                 
185         err:
186         if (fnm)
187                 sk_GENERAL_NAME_pop_free(fnm, GENERAL_NAME_free);
188         if (rnm)
189                 sk_X509_NAME_ENTRY_pop_free(rnm, X509_NAME_ENTRY_free);
190         return -1;
191         }
192
193 static const BIT_STRING_BITNAME reason_flags[] = {
194 {1, "Key Compromise", "keyCompromise"},
195 {2, "CA Compromise", "CACompromise"},
196 {3, "Affiliation Changed", "affiliationChanged"},
197 {4, "Superseded", "superseded"},
198 {5, "Cessation Of Operation", "cessationOfOperation"},
199 {6, "Certificate Hold", "certificateHold"},
200 {7, "Privilege Withdrawn", "privilegeWithdrawn"},
201 {8, "AA Compromise", "AACompromise"},
202 {-1, NULL, NULL}
203 };
204
205 static int set_reasons(ASN1_BIT_STRING **preas, char *value)
206         {
207         STACK_OF(CONF_VALUE) *rsk = NULL;
208         const BIT_STRING_BITNAME *pbn;
209         const char *bnam;
210         int i, ret = 0;
211         rsk = X509V3_parse_list(value);
212         if (!rsk)
213                 return 0;
214         if (*preas)
215                 return 0;
216         for (i = 0; i < sk_CONF_VALUE_num(rsk); i++)
217                 {
218                 bnam = sk_CONF_VALUE_value(rsk, i)->name;
219                 if (!*preas)
220                         {
221                         *preas = ASN1_BIT_STRING_new();
222                         if (!*preas)
223                                 goto err;
224                         }
225                 for (pbn = reason_flags; pbn->lname; pbn++)
226                         {
227                         if (!strcmp(pbn->sname, bnam))
228                                 {
229                                 if (!ASN1_BIT_STRING_set_bit(*preas,
230                                                         pbn->bitnum, 1))
231                                         goto err;
232                                 break;
233                                 }
234                         }
235                 if (!pbn->lname)
236                         goto err;
237                 }
238         ret = 1;
239
240         err:
241         sk_CONF_VALUE_pop_free(rsk, X509V3_conf_free);
242         return ret;
243         }
244
245 static int print_reasons(BIO *out, const char *rname,
246                         ASN1_BIT_STRING *rflags, int indent)
247         {
248         int first = 1;
249         const BIT_STRING_BITNAME *pbn;
250         BIO_printf(out, "%*s%s:\n%*s", indent, "", rname, indent + 2, "");
251         for (pbn = reason_flags; pbn->lname; pbn++)
252                 {
253                 if (ASN1_BIT_STRING_get_bit(rflags, pbn->bitnum))
254                         {
255                         if (first)
256                                 first = 0;
257                         else
258                                 BIO_puts(out, ", ");
259                         BIO_puts(out, pbn->lname);
260                         }
261                 }
262         if (first)
263                 BIO_puts(out, "<EMPTY>\n");
264         else
265                 BIO_puts(out, "\n");
266         return 1;
267         }
268
269 static DIST_POINT *crldp_from_section(X509V3_CTX *ctx,
270                                                 STACK_OF(CONF_VALUE) *nval)
271         {
272         int i;
273         CONF_VALUE *cnf;
274         DIST_POINT *point = NULL;
275         point = DIST_POINT_new();
276         if (!point)
277                 goto err;
278         for(i = 0; i < sk_CONF_VALUE_num(nval); i++)
279                 {
280                 int ret;
281                 cnf = sk_CONF_VALUE_value(nval, i);
282                 ret = set_dist_point_name(&point->distpoint, ctx, cnf);
283                 if (ret > 0)
284                         continue;
285                 if (ret < 0)
286                         goto err;
287                 if (!strcmp(cnf->name, "reasons"))
288                         {
289                         if (!set_reasons(&point->reasons, cnf->value))
290                                 goto err;
291                         }
292                 else if (!strcmp(cnf->name, "CRLissuer"))
293                         {
294                         point->CRLissuer =
295                                 gnames_from_sectname(ctx, cnf->value);
296                         if (!point->CRLissuer)
297                                 goto err;
298                         }
299                 }
300
301         return point;
302                         
303
304         err:
305         if (point)
306                 DIST_POINT_free(point);
307         return NULL;
308         }
309
310 static void *v2i_crld(X509V3_EXT_METHOD *method,
311                                 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
312         {
313         STACK_OF(DIST_POINT) *crld = NULL;
314         GENERAL_NAMES *gens = NULL;
315         GENERAL_NAME *gen = NULL;
316         CONF_VALUE *cnf;
317         int i;
318         if(!(crld = sk_DIST_POINT_new_null())) goto merr;
319         for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
320                 DIST_POINT *point;
321                 cnf = sk_CONF_VALUE_value(nval, i);
322                 if (!cnf->value)
323                         {
324                         STACK_OF(CONF_VALUE) *dpsect;
325                         dpsect = X509V3_get_section(ctx, cnf->name);
326                         if (!dpsect)
327                                 goto err;
328                         point = crldp_from_section(ctx, dpsect);
329                         X509V3_section_free(ctx, dpsect);
330                         if (!point)
331                                 goto err;
332                         if(!sk_DIST_POINT_push(crld, point))
333                                 {
334                                 DIST_POINT_free(point);
335                                 goto merr;
336                                 }
337                         }
338                 else
339                         {
340                         if(!(gen = v2i_GENERAL_NAME(method, ctx, cnf)))
341                                 goto err; 
342                         if(!(gens = GENERAL_NAMES_new()))
343                                 goto merr;
344                         if(!sk_GENERAL_NAME_push(gens, gen))
345                                 goto merr;
346                         gen = NULL;
347                         if(!(point = DIST_POINT_new()))
348                                 goto merr;
349                         if(!sk_DIST_POINT_push(crld, point))
350                                 {
351                                 DIST_POINT_free(point);
352                                 goto merr;
353                                 }
354                         if(!(point->distpoint = DIST_POINT_NAME_new()))
355                                 goto merr;
356                         point->distpoint->name.fullname = gens;
357                         point->distpoint->type = 0;
358                         gens = NULL;
359                         }
360         }
361         return crld;
362
363         merr:
364         X509V3err(X509V3_F_V2I_CRLD,ERR_R_MALLOC_FAILURE);
365         err:
366         GENERAL_NAME_free(gen);
367         GENERAL_NAMES_free(gens);
368         sk_DIST_POINT_pop_free(crld, DIST_POINT_free);
369         return NULL;
370 }
371
372 IMPLEMENT_STACK_OF(DIST_POINT)
373 IMPLEMENT_ASN1_SET_OF(DIST_POINT)
374
375 static int dpn_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
376                                                                 void *exarg)
377         {
378         DIST_POINT_NAME *dpn = (DIST_POINT_NAME *)*pval;
379
380         switch(operation)
381                 {
382                 case ASN1_OP_NEW_POST:
383                 dpn->dpname = NULL;
384                 break;
385
386                 case ASN1_OP_FREE_POST:
387                 if (dpn->dpname)
388                         X509_NAME_free(dpn->dpname);
389                 break;
390                 }
391         return 1;
392         }
393
394
395 ASN1_CHOICE_cb(DIST_POINT_NAME, dpn_cb) = {
396         ASN1_IMP_SEQUENCE_OF(DIST_POINT_NAME, name.fullname, GENERAL_NAME, 0),
397         ASN1_IMP_SET_OF(DIST_POINT_NAME, name.relativename, X509_NAME_ENTRY, 1)
398 } ASN1_CHOICE_END_cb(DIST_POINT_NAME, DIST_POINT_NAME, type)
399
400
401 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT_NAME)
402
403 ASN1_SEQUENCE(DIST_POINT) = {
404         ASN1_EXP_OPT(DIST_POINT, distpoint, DIST_POINT_NAME, 0),
405         ASN1_IMP_OPT(DIST_POINT, reasons, ASN1_BIT_STRING, 1),
406         ASN1_IMP_SEQUENCE_OF_OPT(DIST_POINT, CRLissuer, GENERAL_NAME, 2)
407 } ASN1_SEQUENCE_END(DIST_POINT)
408
409 IMPLEMENT_ASN1_FUNCTIONS(DIST_POINT)
410
411 ASN1_ITEM_TEMPLATE(CRL_DIST_POINTS) = 
412         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CRLDistributionPoints, DIST_POINT)
413 ASN1_ITEM_TEMPLATE_END(CRL_DIST_POINTS)
414
415 IMPLEMENT_ASN1_FUNCTIONS(CRL_DIST_POINTS)
416
417 ASN1_SEQUENCE(ISSUING_DIST_POINT) = {
418         ASN1_EXP_OPT(ISSUING_DIST_POINT, distpoint, DIST_POINT_NAME, 0),
419         ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyuser, ASN1_FBOOLEAN, 1),
420         ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyCA, ASN1_FBOOLEAN, 2),
421         ASN1_IMP_OPT(ISSUING_DIST_POINT, onlysomereasons, ASN1_BIT_STRING, 3),
422         ASN1_IMP_OPT(ISSUING_DIST_POINT, indirectCRL, ASN1_FBOOLEAN, 4),
423         ASN1_IMP_OPT(ISSUING_DIST_POINT, onlyattr, ASN1_FBOOLEAN, 5)
424 } ASN1_SEQUENCE_END(ISSUING_DIST_POINT)
425
426 IMPLEMENT_ASN1_FUNCTIONS(ISSUING_DIST_POINT)
427
428 static int i2r_idp(X509V3_EXT_METHOD *method,
429              void *pidp, BIO *out, int indent);
430 static void *v2i_idp(X509V3_EXT_METHOD *method,
431                                 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
432
433 const X509V3_EXT_METHOD v3_idp =
434         {
435         NID_issuing_distribution_point, X509V3_EXT_MULTILINE,
436         ASN1_ITEM_ref(ISSUING_DIST_POINT),
437         0,0,0,0,
438         0,0,
439         0,
440         v2i_idp,
441         i2r_idp,0,
442         NULL
443         };
444
445 static void *v2i_idp(X509V3_EXT_METHOD *method,
446                                 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
447         {
448         ISSUING_DIST_POINT *idp = NULL;
449         CONF_VALUE *cnf;
450         char *name, *val;
451         int i, ret;
452         idp = ISSUING_DIST_POINT_new();
453         if (!idp)
454                 goto merr;
455         for(i = 0; i < sk_CONF_VALUE_num(nval); i++)
456                 {
457                 cnf = sk_CONF_VALUE_value(nval, i);
458                 name = cnf->name;
459                 val = cnf->value;
460                 ret = set_dist_point_name(&idp->distpoint, ctx, cnf);
461                 if (ret > 0)
462                         continue;
463                 if (ret < 0)
464                         goto err;
465                 if (!strcmp(name, "onlyuser"))
466                         {
467                         if (!X509V3_get_value_bool(cnf, &idp->onlyuser))
468                                 goto err;
469                         }
470                 else if (!strcmp(name, "onlyCA"))
471                         {
472                         if (!X509V3_get_value_bool(cnf, &idp->onlyCA))
473                                 goto err;
474                         }
475                 else if (!strcmp(name, "onlyAA"))
476                         {
477                         if (!X509V3_get_value_bool(cnf, &idp->onlyattr))
478                                 goto err;
479                         }
480                 else if (!strcmp(name, "indirectCRL"))
481                         {
482                         if (!X509V3_get_value_bool(cnf, &idp->indirectCRL))
483                                 goto err;
484                         }
485                 else if (!strcmp(name, "onlysomereasons"))
486                         {
487                         if (!set_reasons(&idp->onlysomereasons, val))
488                                 goto err;
489                         }
490                 else
491                         {
492                         X509V3err(X509V3_F_V2I_IDP, X509V3_R_INVALID_NAME);
493                         X509V3_conf_err(cnf);
494                         goto err;
495                         }
496                 }
497         return idp;
498
499         merr:
500         X509V3err(X509V3_F_V2I_IDP,ERR_R_MALLOC_FAILURE);
501         err:
502         ISSUING_DIST_POINT_free(idp);
503         return NULL;
504         }
505
506 static int print_gens(BIO *out, STACK_OF(GENERAL_NAME) *gens, int indent)
507         {
508         int i;
509         for (i = 0; i < sk_GENERAL_NAME_num(gens); i++)
510                 {
511                 BIO_printf(out, "%*s", indent + 2, "");
512                 GENERAL_NAME_print(out, sk_GENERAL_NAME_value(gens, i));
513                 BIO_puts(out, "\n");
514                 }
515         return 1;
516         }
517
518 static int print_distpoint(BIO *out, DIST_POINT_NAME *dpn, int indent)
519         {
520         if (dpn->type == 0)
521                 {
522                 BIO_printf(out, "%*sFull Name:\n", indent, "");
523                 print_gens(out, dpn->name.fullname, indent);
524                 }
525         else
526                 {
527                 X509_NAME ntmp;
528                 ntmp.entries = dpn->name.relativename;
529                 BIO_printf(out, "%*sRelative Name:\n%*s",
530                                                 indent, "", indent + 2, "");
531                 X509_NAME_print_ex(out, &ntmp, 0, XN_FLAG_ONELINE);
532                 BIO_puts(out, "\n");
533                 }
534         return 1;
535         }
536
537 static int i2r_idp(X509V3_EXT_METHOD *method, void *pidp, BIO *out, int indent)
538         {
539         ISSUING_DIST_POINT *idp = pidp;
540         if (idp->distpoint)
541                 print_distpoint(out, idp->distpoint, indent);
542         if (idp->onlyuser > 0)
543                 BIO_printf(out, "%*sOnly User Certificates\n", indent, "");
544         if (idp->onlyCA > 0)
545                 BIO_printf(out, "%*sOnly CA Certificates\n", indent, "");
546         if (idp->indirectCRL > 0)
547                 BIO_printf(out, "%*sIndirect CRL\n", indent, "");
548         if (idp->onlysomereasons)
549                 print_reasons(out, "Only Some Reasons", 
550                                 idp->onlysomereasons, indent);
551         if (idp->onlyattr > 0)
552                 BIO_printf(out, "%*sOnly Attribute Certificates\n", indent, "");
553         if (!idp->distpoint && (idp->onlyuser <= 0) && (idp->onlyCA <= 0)
554                 && (idp->indirectCRL <= 0) && !idp->onlysomereasons
555                 && (idp->onlyattr <= 0))
556                 BIO_printf(out, "%*s<EMPTY>\n", indent, "");
557                 
558         return 1;
559         }
560
561 static int i2r_crldp(X509V3_EXT_METHOD *method, void *pcrldp, BIO *out,
562                                                                 int indent)
563         {
564         STACK_OF(DIST_POINT) *crld = pcrldp;
565         DIST_POINT *point;
566         int i;
567         for(i = 0; i < sk_DIST_POINT_num(crld); i++)
568                 {
569                 BIO_puts(out, "\n");
570                 point = sk_DIST_POINT_value(crld, i);
571                 if(point->distpoint)
572                         print_distpoint(out, point->distpoint, indent);
573                 if(point->reasons) 
574                         print_reasons(out, "Reasons", point->reasons,
575                                                                 indent);
576                 if(point->CRLissuer)
577                         {
578                         BIO_printf(out, "%*sCRL Issuer:\n", indent, "");
579                         print_gens(out, point->CRLissuer, indent);
580                         }
581                 }
582         return 1;
583         }
584
585 int DIST_POINT_set_dpname(DIST_POINT_NAME *dpn, X509_NAME *iname)
586         {
587         int i;
588         STACK_OF(X509_NAME_ENTRY) *frag;
589         X509_NAME_ENTRY *ne;
590         if (!dpn || (dpn->type != 1))
591                 return 1;
592         frag = dpn->name.relativename;
593         dpn->dpname = X509_NAME_dup(iname);
594         if (!dpn->dpname)
595                 return 0;
596         for (i = 0; i < sk_X509_NAME_ENTRY_num(frag); i++)
597                 {
598                 ne = sk_X509_NAME_ENTRY_value(frag, i);
599                 if (!X509_NAME_add_entry(dpn->dpname, ne, -1, i ? 0 : 1))
600                         {
601                         X509_NAME_free(dpn->dpname);
602                         dpn->dpname = NULL;
603                         return 0;
604                         }
605                 }
606         /* generate cached encoding of name */
607         if (i2d_X509_NAME(dpn->dpname, NULL) < 0)
608                 {
609                 X509_NAME_free(dpn->dpname);
610                 dpn->dpname = NULL;
611                 return 0;
612                 }
613         return 1;
614         }