2 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
5 /* ====================================================================
6 * Copyright (c) 2002 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
59 #include "internal/cryptlib.h"
60 #include <openssl/asn1.h>
61 #include <openssl/x509v3.h>
63 #define ASN1_GEN_FLAG 0x10000
64 #define ASN1_GEN_FLAG_IMP (ASN1_GEN_FLAG|1)
65 #define ASN1_GEN_FLAG_EXP (ASN1_GEN_FLAG|2)
66 #define ASN1_GEN_FLAG_TAG (ASN1_GEN_FLAG|3)
67 #define ASN1_GEN_FLAG_BITWRAP (ASN1_GEN_FLAG|4)
68 #define ASN1_GEN_FLAG_OCTWRAP (ASN1_GEN_FLAG|5)
69 #define ASN1_GEN_FLAG_SEQWRAP (ASN1_GEN_FLAG|6)
70 #define ASN1_GEN_FLAG_SETWRAP (ASN1_GEN_FLAG|7)
71 #define ASN1_GEN_FLAG_FORMAT (ASN1_GEN_FLAG|8)
73 #define ASN1_GEN_STR(str,val) {str, sizeof(str) - 1, val}
75 #define ASN1_FLAG_EXP_MAX 20
76 /* Maximum number of nested sequences */
77 #define ASN1_GEN_SEQ_MAX_DEPTH 50
82 #define ASN1_GEN_FORMAT_ASCII 1
84 #define ASN1_GEN_FORMAT_UTF8 2
86 #define ASN1_GEN_FORMAT_HEX 3
88 #define ASN1_GEN_FORMAT_BITLIST 4
110 tag_exp_type exp_list[ASN1_FLAG_EXP_MAX];
114 static ASN1_TYPE *generate_v3(char *str, X509V3_CTX *cnf, int depth,
116 static int bitstr_cb(const char *elem, int len, void *bitstr);
117 static int asn1_cb(const char *elem, int len, void *bitstr);
118 static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
119 int exp_constructed, int exp_pad, int imp_ok);
120 static int parse_tagging(const char *vstart, int vlen, int *ptag,
122 static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
123 int depth, int *perr);
124 static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype);
125 static int asn1_str2tag(const char *tagstr, int len);
127 ASN1_TYPE *ASN1_generate_nconf(char *str, CONF *nconf)
132 return ASN1_generate_v3(str, NULL);
134 X509V3_set_nconf(&cnf, nconf);
135 return ASN1_generate_v3(str, &cnf);
138 ASN1_TYPE *ASN1_generate_v3(char *str, X509V3_CTX *cnf)
141 ASN1_TYPE *ret = generate_v3(str, cnf, 0, &err);
143 ASN1err(ASN1_F_ASN1_GENERATE_V3, err);
147 static ASN1_TYPE *generate_v3(char *str, X509V3_CTX *cnf, int depth,
151 tag_exp_arg asn1_tags;
156 unsigned char *orig_der = NULL, *new_der = NULL;
157 const unsigned char *cpy_start;
159 const unsigned char *cp;
162 int hdr_constructed = 0, hdr_tag, hdr_class;
165 asn1_tags.imp_tag = -1;
166 asn1_tags.imp_class = -1;
167 asn1_tags.format = ASN1_GEN_FORMAT_ASCII;
168 asn1_tags.exp_count = 0;
169 if (CONF_parse_list(str, ',', 1, asn1_cb, &asn1_tags) != 0) {
170 *perr = ASN1_R_UNKNOWN_TAG;
174 if ((asn1_tags.utype == V_ASN1_SEQUENCE)
175 || (asn1_tags.utype == V_ASN1_SET)) {
177 *perr = ASN1_R_SEQUENCE_OR_SET_NEEDS_CONFIG;
180 if (depth >= ASN1_GEN_SEQ_MAX_DEPTH) {
181 *perr = ASN1_R_ILLEGAL_NESTED_TAGGING;
184 ret = asn1_multi(asn1_tags.utype, asn1_tags.str, cnf, depth, perr);
186 ret = asn1_str2type(asn1_tags.str, asn1_tags.format, asn1_tags.utype);
191 /* If no tagging return base type */
192 if ((asn1_tags.imp_tag == -1) && (asn1_tags.exp_count == 0))
195 /* Generate the encoding */
196 cpy_len = i2d_ASN1_TYPE(ret, &orig_der);
199 /* Set point to start copying for modified encoding */
200 cpy_start = orig_der;
202 /* Do we need IMPLICIT tagging? */
203 if (asn1_tags.imp_tag != -1) {
204 /* If IMPLICIT we will replace the underlying tag */
205 /* Skip existing tag+len */
206 r = ASN1_get_object(&cpy_start, &hdr_len, &hdr_tag, &hdr_class,
210 /* Update copy length */
211 cpy_len -= cpy_start - orig_der;
213 * For IMPLICIT tagging the length should match the original length
214 * and constructed flag should be consistent.
217 /* Indefinite length constructed */
221 /* Just retain constructed flag */
222 hdr_constructed = r & V_ASN1_CONSTRUCTED;
224 * Work out new length with IMPLICIT tag: ignore constructed because
225 * it will mess up if indefinite length
227 len = ASN1_object_size(0, hdr_len, asn1_tags.imp_tag);
231 /* Work out length in any EXPLICIT, starting from end */
233 for (i = 0, etmp = asn1_tags.exp_list + asn1_tags.exp_count - 1;
234 i < asn1_tags.exp_count; i++, etmp--) {
235 /* Content length: number of content octets + any padding */
236 len += etmp->exp_pad;
238 /* Total object length: length including new header */
239 len = ASN1_object_size(0, len, etmp->exp_tag);
242 /* Allocate buffer for new encoding */
244 new_der = OPENSSL_malloc(len);
248 /* Generate tagged encoding */
252 /* Output explicit tags first */
254 for (i = 0, etmp = asn1_tags.exp_list; i < asn1_tags.exp_count;
256 ASN1_put_object(&p, etmp->exp_constructed, etmp->exp_len,
257 etmp->exp_tag, etmp->exp_class);
262 /* If IMPLICIT, output tag */
264 if (asn1_tags.imp_tag != -1) {
265 if (asn1_tags.imp_class == V_ASN1_UNIVERSAL
266 && (asn1_tags.imp_tag == V_ASN1_SEQUENCE
267 || asn1_tags.imp_tag == V_ASN1_SET))
268 hdr_constructed = V_ASN1_CONSTRUCTED;
269 ASN1_put_object(&p, hdr_constructed, hdr_len,
270 asn1_tags.imp_tag, asn1_tags.imp_class);
273 /* Copy across original encoding */
274 memcpy(p, cpy_start, cpy_len);
278 /* Obtain new ASN1_TYPE structure */
279 ret = d2i_ASN1_TYPE(NULL, &cp, len);
282 OPENSSL_free(orig_der);
283 OPENSSL_free(new_der);
289 static int asn1_cb(const char *elem, int len, void *bitstr)
291 tag_exp_arg *arg = bitstr;
295 const char *p, *vstart = NULL;
297 int tmp_tag, tmp_class;
302 for (i = 0, p = elem; i < len; p++, i++) {
303 /* Look for the ':' in name value pairs */
306 vlen = len - (vstart - elem);
312 utype = asn1_str2tag(elem, len);
315 ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKNOWN_TAG);
316 ERR_add_error_data(2, "tag=", elem);
320 /* If this is not a modifier mark end of string and exit */
321 if (!(utype & ASN1_GEN_FLAG)) {
324 /* If no value and not end of string, error */
325 if (!vstart && elem[len]) {
326 ASN1err(ASN1_F_ASN1_CB, ASN1_R_MISSING_VALUE);
334 case ASN1_GEN_FLAG_IMP:
335 /* Check for illegal multiple IMPLICIT tagging */
336 if (arg->imp_tag != -1) {
337 ASN1err(ASN1_F_ASN1_CB, ASN1_R_ILLEGAL_NESTED_TAGGING);
340 if (!parse_tagging(vstart, vlen, &arg->imp_tag, &arg->imp_class))
344 case ASN1_GEN_FLAG_EXP:
346 if (!parse_tagging(vstart, vlen, &tmp_tag, &tmp_class))
348 if (!append_exp(arg, tmp_tag, tmp_class, 1, 0, 0))
352 case ASN1_GEN_FLAG_SEQWRAP:
353 if (!append_exp(arg, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, 1, 0, 1))
357 case ASN1_GEN_FLAG_SETWRAP:
358 if (!append_exp(arg, V_ASN1_SET, V_ASN1_UNIVERSAL, 1, 0, 1))
362 case ASN1_GEN_FLAG_BITWRAP:
363 if (!append_exp(arg, V_ASN1_BIT_STRING, V_ASN1_UNIVERSAL, 0, 1, 1))
367 case ASN1_GEN_FLAG_OCTWRAP:
368 if (!append_exp(arg, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL, 0, 0, 1))
372 case ASN1_GEN_FLAG_FORMAT:
374 ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKNOWN_FORMAT);
377 if (strncmp(vstart, "ASCII", 5) == 0)
378 arg->format = ASN1_GEN_FORMAT_ASCII;
379 else if (strncmp(vstart, "UTF8", 4) == 0)
380 arg->format = ASN1_GEN_FORMAT_UTF8;
381 else if (strncmp(vstart, "HEX", 3) == 0)
382 arg->format = ASN1_GEN_FORMAT_HEX;
383 else if (strncmp(vstart, "BITLIST", 7) == 0)
384 arg->format = ASN1_GEN_FORMAT_BITLIST;
386 ASN1err(ASN1_F_ASN1_CB, ASN1_R_UNKNOWN_FORMAT);
397 static int parse_tagging(const char *vstart, int vlen, int *ptag, int *pclass)
404 tag_num = strtoul(vstart, &eptr, 10);
405 /* Check we haven't gone past max length: should be impossible */
406 if (eptr && *eptr && (eptr > vstart + vlen))
409 ASN1err(ASN1_F_PARSE_TAGGING, ASN1_R_INVALID_NUMBER);
413 /* If we have non numeric characters, parse them */
415 vlen -= eptr - vstart;
422 *pclass = V_ASN1_UNIVERSAL;
426 *pclass = V_ASN1_APPLICATION;
430 *pclass = V_ASN1_PRIVATE;
434 *pclass = V_ASN1_CONTEXT_SPECIFIC;
440 ASN1err(ASN1_F_PARSE_TAGGING, ASN1_R_INVALID_MODIFIER);
441 ERR_add_error_data(2, "Char=", erch);
446 *pclass = V_ASN1_CONTEXT_SPECIFIC;
452 /* Handle multiple types: SET and SEQUENCE */
454 static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
455 int depth, int *perr)
457 ASN1_TYPE *ret = NULL;
458 STACK_OF(ASN1_TYPE) *sk = NULL;
459 STACK_OF(CONF_VALUE) *sect = NULL;
460 unsigned char *der = NULL;
463 sk = sk_ASN1_TYPE_new_null();
469 sect = X509V3_get_section(cnf, (char *)section);
472 for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
474 generate_v3(sk_CONF_VALUE_value(sect, i)->value, cnf,
478 if (!sk_ASN1_TYPE_push(sk, typ))
484 * Now we has a STACK of the components, convert to the correct form
487 if (utype == V_ASN1_SET)
488 derlen = i2d_ASN1_SET_ANY(sk, &der);
490 derlen = i2d_ASN1_SEQUENCE_ANY(sk, &der);
494 if ((ret = ASN1_TYPE_new()) == NULL)
496 if ((ret->value.asn1_string = ASN1_STRING_type_new(utype)) == NULL)
500 ret->value.asn1_string->data = der;
501 ret->value.asn1_string->length = derlen;
509 sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);
510 X509V3_section_free(cnf, sect);
515 static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
516 int exp_constructed, int exp_pad, int imp_ok)
518 tag_exp_type *exp_tmp;
519 /* Can only have IMPLICIT if permitted */
520 if ((arg->imp_tag != -1) && !imp_ok) {
521 ASN1err(ASN1_F_APPEND_EXP, ASN1_R_ILLEGAL_IMPLICIT_TAG);
525 if (arg->exp_count == ASN1_FLAG_EXP_MAX) {
526 ASN1err(ASN1_F_APPEND_EXP, ASN1_R_DEPTH_EXCEEDED);
530 exp_tmp = &arg->exp_list[arg->exp_count++];
533 * If IMPLICIT set tag to implicit value then reset implicit tag since it
536 if (arg->imp_tag != -1) {
537 exp_tmp->exp_tag = arg->imp_tag;
538 exp_tmp->exp_class = arg->imp_class;
542 exp_tmp->exp_tag = exp_tag;
543 exp_tmp->exp_class = exp_class;
545 exp_tmp->exp_constructed = exp_constructed;
546 exp_tmp->exp_pad = exp_pad;
551 static int asn1_str2tag(const char *tagstr, int len)
554 static const struct tag_name_st *tntmp, tnst[] = {
555 ASN1_GEN_STR("BOOL", V_ASN1_BOOLEAN),
556 ASN1_GEN_STR("BOOLEAN", V_ASN1_BOOLEAN),
557 ASN1_GEN_STR("NULL", V_ASN1_NULL),
558 ASN1_GEN_STR("INT", V_ASN1_INTEGER),
559 ASN1_GEN_STR("INTEGER", V_ASN1_INTEGER),
560 ASN1_GEN_STR("ENUM", V_ASN1_ENUMERATED),
561 ASN1_GEN_STR("ENUMERATED", V_ASN1_ENUMERATED),
562 ASN1_GEN_STR("OID", V_ASN1_OBJECT),
563 ASN1_GEN_STR("OBJECT", V_ASN1_OBJECT),
564 ASN1_GEN_STR("UTCTIME", V_ASN1_UTCTIME),
565 ASN1_GEN_STR("UTC", V_ASN1_UTCTIME),
566 ASN1_GEN_STR("GENERALIZEDTIME", V_ASN1_GENERALIZEDTIME),
567 ASN1_GEN_STR("GENTIME", V_ASN1_GENERALIZEDTIME),
568 ASN1_GEN_STR("OCT", V_ASN1_OCTET_STRING),
569 ASN1_GEN_STR("OCTETSTRING", V_ASN1_OCTET_STRING),
570 ASN1_GEN_STR("BITSTR", V_ASN1_BIT_STRING),
571 ASN1_GEN_STR("BITSTRING", V_ASN1_BIT_STRING),
572 ASN1_GEN_STR("UNIVERSALSTRING", V_ASN1_UNIVERSALSTRING),
573 ASN1_GEN_STR("UNIV", V_ASN1_UNIVERSALSTRING),
574 ASN1_GEN_STR("IA5", V_ASN1_IA5STRING),
575 ASN1_GEN_STR("IA5STRING", V_ASN1_IA5STRING),
576 ASN1_GEN_STR("UTF8", V_ASN1_UTF8STRING),
577 ASN1_GEN_STR("UTF8String", V_ASN1_UTF8STRING),
578 ASN1_GEN_STR("BMP", V_ASN1_BMPSTRING),
579 ASN1_GEN_STR("BMPSTRING", V_ASN1_BMPSTRING),
580 ASN1_GEN_STR("VISIBLESTRING", V_ASN1_VISIBLESTRING),
581 ASN1_GEN_STR("VISIBLE", V_ASN1_VISIBLESTRING),
582 ASN1_GEN_STR("PRINTABLESTRING", V_ASN1_PRINTABLESTRING),
583 ASN1_GEN_STR("PRINTABLE", V_ASN1_PRINTABLESTRING),
584 ASN1_GEN_STR("T61", V_ASN1_T61STRING),
585 ASN1_GEN_STR("T61STRING", V_ASN1_T61STRING),
586 ASN1_GEN_STR("TELETEXSTRING", V_ASN1_T61STRING),
587 ASN1_GEN_STR("GeneralString", V_ASN1_GENERALSTRING),
588 ASN1_GEN_STR("GENSTR", V_ASN1_GENERALSTRING),
589 ASN1_GEN_STR("NUMERIC", V_ASN1_NUMERICSTRING),
590 ASN1_GEN_STR("NUMERICSTRING", V_ASN1_NUMERICSTRING),
593 ASN1_GEN_STR("SEQUENCE", V_ASN1_SEQUENCE),
594 ASN1_GEN_STR("SEQ", V_ASN1_SEQUENCE),
595 ASN1_GEN_STR("SET", V_ASN1_SET),
598 ASN1_GEN_STR("EXP", ASN1_GEN_FLAG_EXP),
599 ASN1_GEN_STR("EXPLICIT", ASN1_GEN_FLAG_EXP),
601 ASN1_GEN_STR("IMP", ASN1_GEN_FLAG_IMP),
602 ASN1_GEN_STR("IMPLICIT", ASN1_GEN_FLAG_IMP),
603 /* OCTET STRING wrapper */
604 ASN1_GEN_STR("OCTWRAP", ASN1_GEN_FLAG_OCTWRAP),
605 /* SEQUENCE wrapper */
606 ASN1_GEN_STR("SEQWRAP", ASN1_GEN_FLAG_SEQWRAP),
608 ASN1_GEN_STR("SETWRAP", ASN1_GEN_FLAG_SETWRAP),
609 /* BIT STRING wrapper */
610 ASN1_GEN_STR("BITWRAP", ASN1_GEN_FLAG_BITWRAP),
611 ASN1_GEN_STR("FORM", ASN1_GEN_FLAG_FORMAT),
612 ASN1_GEN_STR("FORMAT", ASN1_GEN_FLAG_FORMAT),
616 len = strlen(tagstr);
619 for (i = 0; i < OSSL_NELEM(tnst); i++, tntmp++) {
620 if ((len == tntmp->len) && (strncmp(tntmp->strnam, tagstr, len) == 0))
627 static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype)
629 ASN1_TYPE *atmp = NULL;
631 unsigned char *rdata;
635 if ((atmp = ASN1_TYPE_new()) == NULL) {
636 ASN1err(ASN1_F_ASN1_STR2TYPE, ERR_R_MALLOC_FAILURE);
647 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_NULL_VALUE);
653 if (format != ASN1_GEN_FORMAT_ASCII) {
654 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_NOT_ASCII_FORMAT);
659 vtmp.value = (char *)str;
660 if (!X509V3_get_value_bool(&vtmp, &atmp->value.boolean)) {
661 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_BOOLEAN);
667 case V_ASN1_ENUMERATED:
668 if (format != ASN1_GEN_FORMAT_ASCII) {
669 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_INTEGER_NOT_ASCII_FORMAT);
672 if ((atmp->value.integer
673 = s2i_ASN1_INTEGER(NULL, (char *)str)) == NULL) {
674 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_INTEGER);
680 if (format != ASN1_GEN_FORMAT_ASCII) {
681 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_OBJECT_NOT_ASCII_FORMAT);
684 if ((atmp->value.object = OBJ_txt2obj(str, 0)) == NULL) {
685 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_OBJECT);
691 case V_ASN1_GENERALIZEDTIME:
692 if (format != ASN1_GEN_FORMAT_ASCII) {
693 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_TIME_NOT_ASCII_FORMAT);
696 if ((atmp->value.asn1_string = ASN1_STRING_new()) == NULL) {
697 ASN1err(ASN1_F_ASN1_STR2TYPE, ERR_R_MALLOC_FAILURE);
700 if (!ASN1_STRING_set(atmp->value.asn1_string, str, -1)) {
701 ASN1err(ASN1_F_ASN1_STR2TYPE, ERR_R_MALLOC_FAILURE);
704 atmp->value.asn1_string->type = utype;
705 if (!ASN1_TIME_check(atmp->value.asn1_string)) {
706 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_TIME_VALUE);
712 case V_ASN1_BMPSTRING:
713 case V_ASN1_PRINTABLESTRING:
714 case V_ASN1_IA5STRING:
715 case V_ASN1_T61STRING:
716 case V_ASN1_UTF8STRING:
717 case V_ASN1_VISIBLESTRING:
718 case V_ASN1_UNIVERSALSTRING:
719 case V_ASN1_GENERALSTRING:
720 case V_ASN1_NUMERICSTRING:
721 if (format == ASN1_GEN_FORMAT_ASCII)
722 format = MBSTRING_ASC;
723 else if (format == ASN1_GEN_FORMAT_UTF8)
724 format = MBSTRING_UTF8;
726 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_FORMAT);
730 if (ASN1_mbstring_copy(&atmp->value.asn1_string, (unsigned char *)str,
731 -1, format, ASN1_tag2bit(utype)) <= 0) {
732 ASN1err(ASN1_F_ASN1_STR2TYPE, ERR_R_MALLOC_FAILURE);
738 case V_ASN1_BIT_STRING:
739 case V_ASN1_OCTET_STRING:
740 if ((atmp->value.asn1_string = ASN1_STRING_new()) == NULL) {
741 ASN1err(ASN1_F_ASN1_STR2TYPE, ERR_R_MALLOC_FAILURE);
745 if (format == ASN1_GEN_FORMAT_HEX) {
746 if ((rdata = string_to_hex((char *)str, &rdlen)) == NULL) {
747 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_HEX);
750 atmp->value.asn1_string->data = rdata;
751 atmp->value.asn1_string->length = rdlen;
752 atmp->value.asn1_string->type = utype;
753 } else if (format == ASN1_GEN_FORMAT_ASCII)
754 ASN1_STRING_set(atmp->value.asn1_string, str, -1);
755 else if ((format == ASN1_GEN_FORMAT_BITLIST)
756 && (utype == V_ASN1_BIT_STRING)) {
758 (str, ',', 1, bitstr_cb, atmp->value.bit_string)) {
759 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_LIST_ERROR);
765 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_ILLEGAL_BITSTRING_FORMAT);
769 if ((utype == V_ASN1_BIT_STRING) && no_unused) {
770 atmp->value.asn1_string->flags
771 &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
772 atmp->value.asn1_string->flags |= ASN1_STRING_FLAG_BITS_LEFT;
778 ASN1err(ASN1_F_ASN1_STR2TYPE, ASN1_R_UNSUPPORTED_TYPE);
786 ERR_add_error_data(2, "string=", str);
789 ASN1_TYPE_free(atmp);
794 static int bitstr_cb(const char *elem, int len, void *bitstr)
800 bitnum = strtoul(elem, &eptr, 10);
801 if (eptr && *eptr && (eptr != elem + len))
804 ASN1err(ASN1_F_BITSTR_CB, ASN1_R_INVALID_NUMBER);
807 if (!ASN1_BIT_STRING_set_bit(bitstr, bitnum, 1)) {
808 ASN1err(ASN1_F_BITSTR_CB, ERR_R_MALLOC_FAILURE);
814 static int mask_cb(const char *elem, int len, void *arg)
816 unsigned long *pmask = arg, tmpmask;
820 if ((len == 3) && (strncmp(elem, "DIR", 3) == 0)) {
821 *pmask |= B_ASN1_DIRECTORYSTRING;
824 tag = asn1_str2tag(elem, len);
825 if (!tag || (tag & ASN1_GEN_FLAG))
827 tmpmask = ASN1_tag2bit(tag);
834 int ASN1_str2mask(const char *str, unsigned long *pmask)
837 return CONF_parse_list(str, '|', 1, mask_cb, pmask);