1 /*
2 * Copyright 2002-2025 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include "internal/cryptlib.h"
11 #include <openssl/asn1.h>
12 #include <openssl/x509v3.h>
13
14 #define ASN1_GEN_FLAG 0x10000
15 #define ASN1_GEN_FLAG_IMP (ASN1_GEN_FLAG|1)
16 #define ASN1_GEN_FLAG_EXP (ASN1_GEN_FLAG|2)
17 #define ASN1_GEN_FLAG_TAG (ASN1_GEN_FLAG|3)
18 #define ASN1_GEN_FLAG_BITWRAP (ASN1_GEN_FLAG|4)
19 #define ASN1_GEN_FLAG_OCTWRAP (ASN1_GEN_FLAG|5)
20 #define ASN1_GEN_FLAG_SEQWRAP (ASN1_GEN_FLAG|6)
21 #define ASN1_GEN_FLAG_SETWRAP (ASN1_GEN_FLAG|7)
22 #define ASN1_GEN_FLAG_FORMAT (ASN1_GEN_FLAG|8)
23
24 #define ASN1_GEN_STR(str,val) {str, sizeof(str) - 1, val}
25
26 #define ASN1_FLAG_EXP_MAX 20
27 /* Maximum number of nested sequences */
28 #define ASN1_GEN_SEQ_MAX_DEPTH 50
29
30 /* Input formats */
31
32 /* ASCII: default */
33 #define ASN1_GEN_FORMAT_ASCII 1
34 /* UTF8 */
35 #define ASN1_GEN_FORMAT_UTF8 2
36 /* Hex */
37 #define ASN1_GEN_FORMAT_HEX 3
38 /* List of bits */
39 #define ASN1_GEN_FORMAT_BITLIST 4
40
41 struct tag_name_st {
42 const char *strnam;
43 int len;
44 int tag;
45 };
46
47 typedef struct {
48 int exp_tag;
49 int exp_class;
50 int exp_constructed;
51 int exp_pad;
52 long exp_len;
53 } tag_exp_type;
54
55 typedef struct {
56 int imp_tag;
57 int imp_class;
58 int utype;
59 int format;
60 const char *str;
61 tag_exp_type exp_list[ASN1_FLAG_EXP_MAX];
62 int exp_count;
63 } tag_exp_arg;
64
65 static ASN1_TYPE *generate_v3(const char *str, X509V3_CTX *cnf, int depth,
66 int *perr);
67 static int bitstr_cb(const char *elem, int len, void *bitstr);
68 static int asn1_cb(const char *elem, int len, void *bitstr);
69 static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
70 int exp_constructed, int exp_pad, int imp_ok);
71 static int parse_tagging(const char *vstart, int vlen, int *ptag,
72 int *pclass);
73 static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
74 int depth, int *perr);
75 static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype);
76 static int asn1_str2tag(const char *tagstr, int len);
77
ASN1_generate_nconf(const char * str,CONF * nconf)78 ASN1_TYPE *ASN1_generate_nconf(const char *str, CONF *nconf)
79 {
80 X509V3_CTX cnf;
81
82 if (!nconf)
83 return ASN1_generate_v3(str, NULL);
84
85 X509V3_set_nconf(&cnf, nconf);
86 return ASN1_generate_v3(str, &cnf);
87 }
88
ASN1_generate_v3(const char * str,X509V3_CTX * cnf)89 ASN1_TYPE *ASN1_generate_v3(const char *str, X509V3_CTX *cnf)
90 {
91 int err = 0;
92 ASN1_TYPE *ret = generate_v3(str, cnf, 0, &err);
93 if (err)
94 ERR_raise(ERR_LIB_ASN1, err);
95 return ret;
96 }
97
generate_v3(const char * str,X509V3_CTX * cnf,int depth,int * perr)98 static ASN1_TYPE *generate_v3(const char *str, X509V3_CTX *cnf, int depth,
99 int *perr)
100 {
101 ASN1_TYPE *ret;
102 tag_exp_arg asn1_tags;
103 tag_exp_type *etmp;
104
105 int i, len;
106
107 unsigned char *orig_der = NULL, *new_der = NULL;
108 const unsigned char *cpy_start;
109 unsigned char *p;
110 const unsigned char *cp;
111 int cpy_len;
112 long hdr_len = 0;
113 int hdr_constructed = 0, hdr_tag, hdr_class;
114 int r;
115
116 asn1_tags.imp_tag = -1;
117 asn1_tags.imp_class = -1;
118 asn1_tags.format = ASN1_GEN_FORMAT_ASCII;
119 asn1_tags.exp_count = 0;
120 if (CONF_parse_list(str, ',', 1, asn1_cb, &asn1_tags) != 0) {
121 *perr = ASN1_R_UNKNOWN_TAG;
122 return NULL;
123 }
124
125 if ((asn1_tags.utype == V_ASN1_SEQUENCE)
126 || (asn1_tags.utype == V_ASN1_SET)) {
127 if (!cnf) {
128 *perr = ASN1_R_SEQUENCE_OR_SET_NEEDS_CONFIG;
129 return NULL;
130 }
131 if (depth >= ASN1_GEN_SEQ_MAX_DEPTH) {
132 *perr = ASN1_R_ILLEGAL_NESTED_TAGGING;
133 return NULL;
134 }
135 ret = asn1_multi(asn1_tags.utype, asn1_tags.str, cnf, depth, perr);
136 } else
137 ret = asn1_str2type(asn1_tags.str, asn1_tags.format, asn1_tags.utype);
138
139 if (!ret)
140 return NULL;
141
142 /* If no tagging return base type */
143 if ((asn1_tags.imp_tag == -1) && (asn1_tags.exp_count == 0))
144 return ret;
145
146 /* Generate the encoding */
147 cpy_len = i2d_ASN1_TYPE(ret, &orig_der);
148 ASN1_TYPE_free(ret);
149 ret = NULL;
150 /* Set point to start copying for modified encoding */
151 cpy_start = orig_der;
152
153 /* Do we need IMPLICIT tagging? */
154 if (asn1_tags.imp_tag != -1) {
155 /* If IMPLICIT we will replace the underlying tag */
156 /* Skip existing tag+len */
157 r = ASN1_get_object(&cpy_start, &hdr_len, &hdr_tag, &hdr_class,
158 cpy_len);
159 if (r & 0x80)
160 goto err;
161 /* Update copy length */
162 cpy_len -= cpy_start - orig_der;
163 /*
164 * For IMPLICIT tagging the length should match the original length
165 * and constructed flag should be consistent.
166 */
167 if (r & 0x1) {
168 /* Indefinite length constructed */
169 hdr_constructed = 2;
170 hdr_len = 0;
171 } else
172 /* Just retain constructed flag */
173 hdr_constructed = r & V_ASN1_CONSTRUCTED;
174 /*
175 * Work out new length with IMPLICIT tag: ignore constructed because
176 * it will mess up if indefinite length
177 */
178 len = ASN1_object_size(0, hdr_len, asn1_tags.imp_tag);
179 } else
180 len = cpy_len;
181
182 /* Work out length in any EXPLICIT, starting from end */
183
184 for (i = 0, etmp = asn1_tags.exp_list + asn1_tags.exp_count - 1;
185 i < asn1_tags.exp_count; i++, etmp--) {
186 /* Content length: number of content octets + any padding */
187 len += etmp->exp_pad;
188 etmp->exp_len = len;
189 /* Total object length: length including new header */
190 len = ASN1_object_size(0, len, etmp->exp_tag);
191 }
192
193 /* Allocate buffer for new encoding */
194
195 new_der = OPENSSL_malloc(len);
196 if (new_der == NULL)
197 goto err;
198
199 /* Generate tagged encoding */
200
201 p = new_der;
202
203 /* Output explicit tags first */
204
205 for (i = 0, etmp = asn1_tags.exp_list; i < asn1_tags.exp_count;
206 i++, etmp++) {
207 ASN1_put_object(&p, etmp->exp_constructed, etmp->exp_len,
208 etmp->exp_tag, etmp->exp_class);
209 if (etmp->exp_pad)
210 *p++ = 0;
211 }
212
213 /* If IMPLICIT, output tag */
214
215 if (asn1_tags.imp_tag != -1) {
216 if (asn1_tags.imp_class == V_ASN1_UNIVERSAL
217 && (asn1_tags.imp_tag == V_ASN1_SEQUENCE
218 || asn1_tags.imp_tag == V_ASN1_SET))
219 hdr_constructed = V_ASN1_CONSTRUCTED;
220 ASN1_put_object(&p, hdr_constructed, hdr_len,
221 asn1_tags.imp_tag, asn1_tags.imp_class);
222 }
223
224 /* Copy across original encoding */
225 memcpy(p, cpy_start, cpy_len);
226
227 cp = new_der;
228
229 /* Obtain new ASN1_TYPE structure */
230 ret = d2i_ASN1_TYPE(NULL, &cp, len);
231
232 err:
233 OPENSSL_free(orig_der);
234 OPENSSL_free(new_der);
235
236 return ret;
237
238 }
239
asn1_cb(const char * elem,int len,void * bitstr)240 static int asn1_cb(const char *elem, int len, void *bitstr)
241 {
242 tag_exp_arg *arg = bitstr;
243 int i;
244 int utype;
245 int vlen = 0;
246 const char *p, *vstart = NULL;
247
248 int tmp_tag, tmp_class;
249
250 if (elem == NULL)
251 return -1;
252
253 for (i = 0, p = elem; i < len; p++, i++) {
254 /* Look for the ':' in name value pairs */
255 if (*p == ':') {
256 vstart = p + 1;
257 vlen = len - (vstart - elem);
258 len = p - elem;
259 break;
260 }
261 }
262
263 utype = asn1_str2tag(elem, len);
264
265 if (utype == -1) {
266 ERR_raise_data(ERR_LIB_ASN1, ASN1_R_UNKNOWN_TAG, "tag=%s", elem);
267 return -1;
268 }
269
270 /* If this is not a modifier mark end of string and exit */
271 if (!(utype & ASN1_GEN_FLAG)) {
272 arg->utype = utype;
273 arg->str = vstart;
274 /* If no value and not end of string, error */
275 if (!vstart && elem[len]) {
276 ERR_raise(ERR_LIB_ASN1, ASN1_R_MISSING_VALUE);
277 return -1;
278 }
279 return 0;
280 }
281
282 switch (utype) {
283
284 case ASN1_GEN_FLAG_IMP:
285 /* Check for illegal multiple IMPLICIT tagging */
286 if (arg->imp_tag != -1) {
287 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_NESTED_TAGGING);
288 return -1;
289 }
290 if (!parse_tagging(vstart, vlen, &arg->imp_tag, &arg->imp_class))
291 return -1;
292 break;
293
294 case ASN1_GEN_FLAG_EXP:
295
296 if (!parse_tagging(vstart, vlen, &tmp_tag, &tmp_class))
297 return -1;
298 if (!append_exp(arg, tmp_tag, tmp_class, 1, 0, 0))
299 return -1;
300 break;
301
302 case ASN1_GEN_FLAG_SEQWRAP:
303 if (!append_exp(arg, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL, 1, 0, 1))
304 return -1;
305 break;
306
307 case ASN1_GEN_FLAG_SETWRAP:
308 if (!append_exp(arg, V_ASN1_SET, V_ASN1_UNIVERSAL, 1, 0, 1))
309 return -1;
310 break;
311
312 case ASN1_GEN_FLAG_BITWRAP:
313 if (!append_exp(arg, V_ASN1_BIT_STRING, V_ASN1_UNIVERSAL, 0, 1, 1))
314 return -1;
315 break;
316
317 case ASN1_GEN_FLAG_OCTWRAP:
318 if (!append_exp(arg, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL, 0, 0, 1))
319 return -1;
320 break;
321
322 case ASN1_GEN_FLAG_FORMAT:
323 if (!vstart) {
324 ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_FORMAT);
325 return -1;
326 }
327 if (strncmp(vstart, "ASCII", 5) == 0)
328 arg->format = ASN1_GEN_FORMAT_ASCII;
329 else if (strncmp(vstart, "UTF8", 4) == 0)
330 arg->format = ASN1_GEN_FORMAT_UTF8;
331 else if (strncmp(vstart, "HEX", 3) == 0)
332 arg->format = ASN1_GEN_FORMAT_HEX;
333 else if (strncmp(vstart, "BITLIST", 7) == 0)
334 arg->format = ASN1_GEN_FORMAT_BITLIST;
335 else {
336 ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_FORMAT);
337 return -1;
338 }
339 break;
340
341 }
342
343 return 1;
344
345 }
346
parse_tagging(const char * vstart,int vlen,int * ptag,int * pclass)347 static int parse_tagging(const char *vstart, int vlen, int *ptag, int *pclass)
348 {
349 long tag_num;
350 char *eptr;
351 if (!vstart)
352 return 0;
353 tag_num = strtoul(vstart, &eptr, 10);
354 /* Check we haven't gone past max length: should be impossible */
355 if (eptr && *eptr && (eptr > vstart + vlen))
356 return 0;
357 if (tag_num < 0) {
358 ERR_raise(ERR_LIB_ASN1, ASN1_R_INVALID_NUMBER);
359 return 0;
360 }
361 *ptag = tag_num;
362 /* If we have non numeric characters, parse them */
363 if (eptr)
364 vlen -= eptr - vstart;
365 else
366 vlen = 0;
367 if (vlen) {
368 switch (*eptr) {
369
370 case 'U':
371 *pclass = V_ASN1_UNIVERSAL;
372 break;
373
374 case 'A':
375 *pclass = V_ASN1_APPLICATION;
376 break;
377
378 case 'P':
379 *pclass = V_ASN1_PRIVATE;
380 break;
381
382 case 'C':
383 *pclass = V_ASN1_CONTEXT_SPECIFIC;
384 break;
385
386 default:
387 ERR_raise_data(ERR_LIB_ASN1, ASN1_R_INVALID_MODIFIER,
388 "Char=%c", *eptr);
389 return 0;
390
391 }
392 } else
393 *pclass = V_ASN1_CONTEXT_SPECIFIC;
394
395 return 1;
396
397 }
398
399 /* Handle multiple types: SET and SEQUENCE */
400
asn1_multi(int utype,const char * section,X509V3_CTX * cnf,int depth,int * perr)401 static ASN1_TYPE *asn1_multi(int utype, const char *section, X509V3_CTX *cnf,
402 int depth, int *perr)
403 {
404 ASN1_TYPE *ret = NULL;
405 STACK_OF(ASN1_TYPE) *sk = NULL;
406 STACK_OF(CONF_VALUE) *sect = NULL;
407 unsigned char *der = NULL;
408 int derlen;
409 int i;
410 sk = sk_ASN1_TYPE_new_null();
411 if (!sk)
412 goto bad;
413 if (section) {
414 if (!cnf)
415 goto bad;
416 sect = X509V3_get_section(cnf, (char *)section);
417 if (!sect)
418 goto bad;
419 for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
420 ASN1_TYPE *typ =
421 generate_v3(sk_CONF_VALUE_value(sect, i)->value, cnf,
422 depth + 1, perr);
423 if (!typ)
424 goto bad;
425 if (!sk_ASN1_TYPE_push(sk, typ))
426 goto bad;
427 }
428 }
429
430 /*
431 * Now we has a STACK of the components, convert to the correct form
432 */
433
434 if (utype == V_ASN1_SET)
435 derlen = i2d_ASN1_SET_ANY(sk, &der);
436 else
437 derlen = i2d_ASN1_SEQUENCE_ANY(sk, &der);
438
439 if (derlen < 0)
440 goto bad;
441 if ((ret = ASN1_TYPE_new()) == NULL)
442 goto bad;
443 if ((ret->value.asn1_string = ASN1_STRING_type_new(utype)) == NULL)
444 goto bad;
445
446 ret->type = utype;
447 ret->value.asn1_string->data = der;
448 ret->value.asn1_string->length = derlen;
449
450 der = NULL;
451
452 bad:
453
454 OPENSSL_free(der);
455
456 sk_ASN1_TYPE_pop_free(sk, ASN1_TYPE_free);
457 X509V3_section_free(cnf, sect);
458
459 return ret;
460 }
461
append_exp(tag_exp_arg * arg,int exp_tag,int exp_class,int exp_constructed,int exp_pad,int imp_ok)462 static int append_exp(tag_exp_arg *arg, int exp_tag, int exp_class,
463 int exp_constructed, int exp_pad, int imp_ok)
464 {
465 tag_exp_type *exp_tmp;
466 /* Can only have IMPLICIT if permitted */
467 if ((arg->imp_tag != -1) && !imp_ok) {
468 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_IMPLICIT_TAG);
469 return 0;
470 }
471
472 if (arg->exp_count == ASN1_FLAG_EXP_MAX) {
473 ERR_raise(ERR_LIB_ASN1, ASN1_R_DEPTH_EXCEEDED);
474 return 0;
475 }
476
477 exp_tmp = &arg->exp_list[arg->exp_count++];
478
479 /*
480 * If IMPLICIT set tag to implicit value then reset implicit tag since it
481 * has been used.
482 */
483 if (arg->imp_tag != -1) {
484 exp_tmp->exp_tag = arg->imp_tag;
485 exp_tmp->exp_class = arg->imp_class;
486 arg->imp_tag = -1;
487 arg->imp_class = -1;
488 } else {
489 exp_tmp->exp_tag = exp_tag;
490 exp_tmp->exp_class = exp_class;
491 }
492 exp_tmp->exp_constructed = exp_constructed;
493 exp_tmp->exp_pad = exp_pad;
494
495 return 1;
496 }
497
asn1_str2tag(const char * tagstr,int len)498 static int asn1_str2tag(const char *tagstr, int len)
499 {
500 unsigned int i;
501 const struct tag_name_st *tntmp;
502 static const struct tag_name_st tnst[] = {
503 ASN1_GEN_STR("BOOL", V_ASN1_BOOLEAN),
504 ASN1_GEN_STR("BOOLEAN", V_ASN1_BOOLEAN),
505 ASN1_GEN_STR("NULL", V_ASN1_NULL),
506 ASN1_GEN_STR("INT", V_ASN1_INTEGER),
507 ASN1_GEN_STR("INTEGER", V_ASN1_INTEGER),
508 ASN1_GEN_STR("ENUM", V_ASN1_ENUMERATED),
509 ASN1_GEN_STR("ENUMERATED", V_ASN1_ENUMERATED),
510 ASN1_GEN_STR("OID", V_ASN1_OBJECT),
511 ASN1_GEN_STR("OBJECT", V_ASN1_OBJECT),
512 ASN1_GEN_STR("UTCTIME", V_ASN1_UTCTIME),
513 ASN1_GEN_STR("UTC", V_ASN1_UTCTIME),
514 ASN1_GEN_STR("GENERALIZEDTIME", V_ASN1_GENERALIZEDTIME),
515 ASN1_GEN_STR("GENTIME", V_ASN1_GENERALIZEDTIME),
516 ASN1_GEN_STR("OCT", V_ASN1_OCTET_STRING),
517 ASN1_GEN_STR("OCTETSTRING", V_ASN1_OCTET_STRING),
518 ASN1_GEN_STR("BITSTR", V_ASN1_BIT_STRING),
519 ASN1_GEN_STR("BITSTRING", V_ASN1_BIT_STRING),
520 ASN1_GEN_STR("UNIVERSALSTRING", V_ASN1_UNIVERSALSTRING),
521 ASN1_GEN_STR("UNIV", V_ASN1_UNIVERSALSTRING),
522 ASN1_GEN_STR("IA5", V_ASN1_IA5STRING),
523 ASN1_GEN_STR("IA5STRING", V_ASN1_IA5STRING),
524 ASN1_GEN_STR("UTF8", V_ASN1_UTF8STRING),
525 ASN1_GEN_STR("UTF8String", V_ASN1_UTF8STRING),
526 ASN1_GEN_STR("BMP", V_ASN1_BMPSTRING),
527 ASN1_GEN_STR("BMPSTRING", V_ASN1_BMPSTRING),
528 ASN1_GEN_STR("VISIBLESTRING", V_ASN1_VISIBLESTRING),
529 ASN1_GEN_STR("VISIBLE", V_ASN1_VISIBLESTRING),
530 ASN1_GEN_STR("PRINTABLESTRING", V_ASN1_PRINTABLESTRING),
531 ASN1_GEN_STR("PRINTABLE", V_ASN1_PRINTABLESTRING),
532 ASN1_GEN_STR("T61", V_ASN1_T61STRING),
533 ASN1_GEN_STR("T61STRING", V_ASN1_T61STRING),
534 ASN1_GEN_STR("TELETEXSTRING", V_ASN1_T61STRING),
535 ASN1_GEN_STR("GeneralString", V_ASN1_GENERALSTRING),
536 ASN1_GEN_STR("GENSTR", V_ASN1_GENERALSTRING),
537 ASN1_GEN_STR("NUMERIC", V_ASN1_NUMERICSTRING),
538 ASN1_GEN_STR("NUMERICSTRING", V_ASN1_NUMERICSTRING),
539
540 /* Special cases */
541 ASN1_GEN_STR("SEQUENCE", V_ASN1_SEQUENCE),
542 ASN1_GEN_STR("SEQ", V_ASN1_SEQUENCE),
543 ASN1_GEN_STR("SET", V_ASN1_SET),
544 /* type modifiers */
545 /* Explicit tag */
546 ASN1_GEN_STR("EXP", ASN1_GEN_FLAG_EXP),
547 ASN1_GEN_STR("EXPLICIT", ASN1_GEN_FLAG_EXP),
548 /* Implicit tag */
549 ASN1_GEN_STR("IMP", ASN1_GEN_FLAG_IMP),
550 ASN1_GEN_STR("IMPLICIT", ASN1_GEN_FLAG_IMP),
551 /* OCTET STRING wrapper */
552 ASN1_GEN_STR("OCTWRAP", ASN1_GEN_FLAG_OCTWRAP),
553 /* SEQUENCE wrapper */
554 ASN1_GEN_STR("SEQWRAP", ASN1_GEN_FLAG_SEQWRAP),
555 /* SET wrapper */
556 ASN1_GEN_STR("SETWRAP", ASN1_GEN_FLAG_SETWRAP),
557 /* BIT STRING wrapper */
558 ASN1_GEN_STR("BITWRAP", ASN1_GEN_FLAG_BITWRAP),
559 ASN1_GEN_STR("FORM", ASN1_GEN_FLAG_FORMAT),
560 ASN1_GEN_STR("FORMAT", ASN1_GEN_FLAG_FORMAT),
561 };
562
563 if (len == -1)
564 len = strlen(tagstr);
565
566 tntmp = tnst;
567 for (i = 0; i < OSSL_NELEM(tnst); i++, tntmp++) {
568 if ((len == tntmp->len)
569 && (OPENSSL_strncasecmp(tntmp->strnam, tagstr, len) == 0))
570 return tntmp->tag;
571 }
572
573 return -1;
574 }
575
asn1_str2type(const char * str,int format,int utype)576 static ASN1_TYPE *asn1_str2type(const char *str, int format, int utype)
577 {
578 ASN1_TYPE *atmp = NULL;
579 CONF_VALUE vtmp;
580 unsigned char *rdata;
581 long rdlen;
582 int no_unused = 1;
583
584 if ((atmp = ASN1_TYPE_new()) == NULL) {
585 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
586 return NULL;
587 }
588
589 if (!str)
590 str = "";
591
592 switch (utype) {
593
594 case V_ASN1_NULL:
595 if (str && *str) {
596 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_NULL_VALUE);
597 goto bad_form;
598 }
599 break;
600
601 case V_ASN1_BOOLEAN:
602 if (format != ASN1_GEN_FORMAT_ASCII) {
603 ERR_raise(ERR_LIB_ASN1, ASN1_R_NOT_ASCII_FORMAT);
604 goto bad_form;
605 }
606 vtmp.name = NULL;
607 vtmp.section = NULL;
608 vtmp.value = (char *)str;
609 if (!X509V3_get_value_bool(&vtmp, &atmp->value.boolean)) {
610 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_BOOLEAN);
611 goto bad_str;
612 }
613 break;
614
615 case V_ASN1_INTEGER:
616 case V_ASN1_ENUMERATED:
617 if (format != ASN1_GEN_FORMAT_ASCII) {
618 ERR_raise(ERR_LIB_ASN1, ASN1_R_INTEGER_NOT_ASCII_FORMAT);
619 goto bad_form;
620 }
621 if ((atmp->value.integer
622 = s2i_ASN1_INTEGER(NULL, str)) == NULL) {
623 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_INTEGER);
624 goto bad_str;
625 }
626 break;
627
628 case V_ASN1_OBJECT:
629 if (format != ASN1_GEN_FORMAT_ASCII) {
630 ERR_raise(ERR_LIB_ASN1, ASN1_R_OBJECT_NOT_ASCII_FORMAT);
631 goto bad_form;
632 }
633 if ((atmp->value.object = OBJ_txt2obj(str, 0)) == NULL) {
634 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_OBJECT);
635 goto bad_str;
636 }
637 break;
638
639 case V_ASN1_UTCTIME:
640 case V_ASN1_GENERALIZEDTIME:
641 if (format != ASN1_GEN_FORMAT_ASCII) {
642 ERR_raise(ERR_LIB_ASN1, ASN1_R_TIME_NOT_ASCII_FORMAT);
643 goto bad_form;
644 }
645 if ((atmp->value.asn1_string = ASN1_STRING_new()) == NULL) {
646 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
647 goto bad_str;
648 }
649 if (!ASN1_STRING_set(atmp->value.asn1_string, str, -1)) {
650 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
651 goto bad_str;
652 }
653 atmp->value.asn1_string->type = utype;
654 if (!ASN1_TIME_check(atmp->value.asn1_string)) {
655 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_TIME_VALUE);
656 goto bad_str;
657 }
658
659 break;
660
661 case V_ASN1_BMPSTRING:
662 case V_ASN1_PRINTABLESTRING:
663 case V_ASN1_IA5STRING:
664 case V_ASN1_T61STRING:
665 case V_ASN1_UTF8STRING:
666 case V_ASN1_VISIBLESTRING:
667 case V_ASN1_UNIVERSALSTRING:
668 case V_ASN1_GENERALSTRING:
669 case V_ASN1_NUMERICSTRING:
670 if (format == ASN1_GEN_FORMAT_ASCII)
671 format = MBSTRING_ASC;
672 else if (format == ASN1_GEN_FORMAT_UTF8)
673 format = MBSTRING_UTF8;
674 else {
675 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_FORMAT);
676 goto bad_form;
677 }
678
679 if (ASN1_mbstring_copy(&atmp->value.asn1_string, (unsigned char *)str,
680 -1, format, ASN1_tag2bit(utype)) <= 0) {
681 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
682 goto bad_str;
683 }
684
685 break;
686
687 case V_ASN1_BIT_STRING:
688 case V_ASN1_OCTET_STRING:
689 if ((atmp->value.asn1_string = ASN1_STRING_new()) == NULL) {
690 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
691 goto bad_form;
692 }
693
694 if (format == ASN1_GEN_FORMAT_HEX) {
695 if ((rdata = OPENSSL_hexstr2buf(str, &rdlen)) == NULL) {
696 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_HEX);
697 goto bad_str;
698 }
699 atmp->value.asn1_string->data = rdata;
700 atmp->value.asn1_string->length = rdlen;
701 atmp->value.asn1_string->type = utype;
702 } else if (format == ASN1_GEN_FORMAT_ASCII) {
703 if (!ASN1_STRING_set(atmp->value.asn1_string, str, -1)) {
704 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
705 goto bad_str;
706 }
707 } else if ((format == ASN1_GEN_FORMAT_BITLIST)
708 && (utype == V_ASN1_BIT_STRING)) {
709 if (!CONF_parse_list
710 (str, ',', 1, bitstr_cb, atmp->value.bit_string)) {
711 ERR_raise(ERR_LIB_ASN1, ASN1_R_LIST_ERROR);
712 goto bad_str;
713 }
714 no_unused = 0;
715
716 } else {
717 ERR_raise(ERR_LIB_ASN1, ASN1_R_ILLEGAL_BITSTRING_FORMAT);
718 goto bad_form;
719 }
720
721 if ((utype == V_ASN1_BIT_STRING) && no_unused) {
722 atmp->value.asn1_string->flags
723 &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
724 atmp->value.asn1_string->flags |= ASN1_STRING_FLAG_BITS_LEFT;
725 }
726
727 break;
728
729 default:
730 ERR_raise(ERR_LIB_ASN1, ASN1_R_UNSUPPORTED_TYPE);
731 goto bad_str;
732 }
733
734 atmp->type = utype;
735 return atmp;
736
737 bad_str:
738 ERR_add_error_data(2, "string=", str);
739 bad_form:
740
741 ASN1_TYPE_free(atmp);
742 return NULL;
743
744 }
745
bitstr_cb(const char * elem,int len,void * bitstr)746 static int bitstr_cb(const char *elem, int len, void *bitstr)
747 {
748 long bitnum;
749 char *eptr;
750 if (!elem)
751 return 0;
752 bitnum = strtoul(elem, &eptr, 10);
753 if (eptr && *eptr && (eptr != elem + len))
754 return 0;
755 if (bitnum < 0) {
756 ERR_raise(ERR_LIB_ASN1, ASN1_R_INVALID_NUMBER);
757 return 0;
758 }
759 if (!ASN1_BIT_STRING_set_bit(bitstr, bitnum, 1)) {
760 ERR_raise(ERR_LIB_ASN1, ERR_R_MALLOC_FAILURE);
761 return 0;
762 }
763 return 1;
764 }
765
mask_cb(const char * elem,int len,void * arg)766 static int mask_cb(const char *elem, int len, void *arg)
767 {
768 unsigned long *pmask = arg, tmpmask;
769 int tag;
770 if (elem == NULL)
771 return 0;
772 if ((len == 3) && (strncmp(elem, "DIR", 3) == 0)) {
773 *pmask |= B_ASN1_DIRECTORYSTRING;
774 return 1;
775 }
776 tag = asn1_str2tag(elem, len);
777 if (!tag || (tag & ASN1_GEN_FLAG))
778 return 0;
779 tmpmask = ASN1_tag2bit(tag);
780 if (!tmpmask)
781 return 0;
782 *pmask |= tmpmask;
783 return 1;
784 }
785
ASN1_str2mask(const char * str,unsigned long * pmask)786 int ASN1_str2mask(const char *str, unsigned long *pmask)
787 {
788 *pmask = 0;
789 return CONF_parse_list(str, '|', 1, mask_cb, pmask);
790 }
791