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Diffstat (limited to 'src/lib/libcrypto/asn1/a_object.c')
-rw-r--r--src/lib/libcrypto/asn1/a_object.c688
1 files changed, 0 insertions, 688 deletions
diff --git a/src/lib/libcrypto/asn1/a_object.c b/src/lib/libcrypto/asn1/a_object.c
deleted file mode 100644
index 2f3ca1398f..0000000000
--- a/src/lib/libcrypto/asn1/a_object.c
+++ /dev/null
@@ -1,688 +0,0 @@
1/* $OpenBSD: a_object.c,v 1.55 2024/07/08 14:52:31 beck Exp $ */
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 <limits.h>
60#include <stdio.h>
61#include <string.h>
62
63#include <openssl/asn1.h>
64#include <openssl/asn1t.h>
65#include <openssl/err.h>
66#include <openssl/buffer.h>
67#include <openssl/objects.h>
68
69#include "asn1_local.h"
70
71const ASN1_ITEM ASN1_OBJECT_it = {
72 .itype = ASN1_ITYPE_PRIMITIVE,
73 .utype = V_ASN1_OBJECT,
74 .sname = "ASN1_OBJECT",
75};
76LCRYPTO_ALIAS(ASN1_OBJECT_it);
77
78ASN1_OBJECT *
79ASN1_OBJECT_new(void)
80{
81 ASN1_OBJECT *a;
82
83 if ((a = calloc(1, sizeof(ASN1_OBJECT))) == NULL) {
84 ASN1error(ERR_R_MALLOC_FAILURE);
85 return (NULL);
86 }
87 a->flags = ASN1_OBJECT_FLAG_DYNAMIC;
88
89 return a;
90}
91LCRYPTO_ALIAS(ASN1_OBJECT_new);
92
93void
94ASN1_OBJECT_free(ASN1_OBJECT *a)
95{
96 if (a == NULL)
97 return;
98 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) {
99 free((void *)a->sn);
100 free((void *)a->ln);
101 a->sn = a->ln = NULL;
102 }
103 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) {
104 freezero((void *)a->data, a->length);
105 a->data = NULL;
106 a->length = 0;
107 }
108 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
109 free(a);
110}
111LCRYPTO_ALIAS(ASN1_OBJECT_free);
112
113ASN1_OBJECT *
114ASN1_OBJECT_create(int nid, unsigned char *data, int len,
115 const char *sn, const char *ln)
116{
117 ASN1_OBJECT o;
118
119 o.sn = sn;
120 o.ln = ln;
121 o.data = data;
122 o.nid = nid;
123 o.length = len;
124 o.flags = ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
125 ASN1_OBJECT_FLAG_DYNAMIC_DATA;
126 return (OBJ_dup(&o));
127}
128LCRYPTO_ALIAS(ASN1_OBJECT_create);
129
130static int
131oid_add_arc(CBB *cbb, uint64_t arc)
132{
133 int started = 0;
134 uint8_t val;
135 int i;
136
137 for (i = (sizeof(arc) * 8) / 7; i >= 0; i--) {
138 val = (arc >> (i * 7)) & 0x7f;
139 if (!started && i != 0 && val == 0)
140 continue;
141 if (i > 0)
142 val |= 0x80;
143 if (!CBB_add_u8(cbb, val))
144 return 0;
145 started = 1;
146 }
147
148 return 1;
149}
150
151static int
152oid_parse_arc(CBS *cbs, uint64_t *out_arc)
153{
154 uint64_t arc = 0;
155 uint8_t val;
156
157 do {
158 if (!CBS_get_u8(cbs, &val))
159 return 0;
160 if (arc == 0 && val == 0x80)
161 return 0;
162 if (out_arc != NULL && arc > (UINT64_MAX >> 7))
163 return 0;
164 arc = (arc << 7) | (val & 0x7f);
165 } while (val & 0x80);
166
167 if (out_arc != NULL)
168 *out_arc = arc;
169
170 return 1;
171}
172
173static int
174oid_add_arc_txt(CBB *cbb, uint64_t arc, int first)
175{
176 const char *fmt = ".%llu";
177 char s[22]; /* Digits in decimal representation of 2^64-1, plus '.' and NUL. */
178 int n;
179
180 if (first)
181 fmt = "%llu";
182 n = snprintf(s, sizeof(s), fmt, (unsigned long long)arc);
183 if (n < 0 || (size_t)n >= sizeof(s))
184 return 0;
185 if (!CBB_add_bytes(cbb, s, n))
186 return 0;
187
188 return 1;
189}
190
191static int
192oid_parse_arc_txt(CBS *cbs, uint64_t *out_arc, char *separator, int first)
193{
194 uint64_t arc = 0;
195 int digits = 0;
196 uint8_t val;
197
198 if (!first) {
199 if (!CBS_get_u8(cbs, &val))
200 return 0;
201 if ((*separator == 0 && val != '.' && val != ' ') ||
202 (*separator != 0 && val != *separator)) {
203 ASN1error(ASN1_R_INVALID_SEPARATOR);
204 return 0;
205 }
206 *separator = val;
207 }
208
209 while (CBS_len(cbs) > 0) {
210 if (!CBS_peek_u8(cbs, &val))
211 return 0;
212 if (val == '.' || val == ' ')
213 break;
214
215 if (!CBS_get_u8(cbs, &val))
216 return 0;
217 if (val < '0' || val > '9') {
218 /* For the first arc we treat this as the separator. */
219 if (first) {
220 ASN1error(ASN1_R_INVALID_SEPARATOR);
221 return 0;
222 }
223 ASN1error(ASN1_R_INVALID_DIGIT);
224 return 0;
225 }
226 val -= '0';
227
228 if (digits > 0 && arc == 0 && val == 0) {
229 ASN1error(ASN1_R_INVALID_NUMBER);
230 return 0;
231 }
232 digits++;
233
234 if (arc > UINT64_MAX / 10) {
235 ASN1error(ASN1_R_TOO_LONG);
236 return 0;
237 }
238 arc = arc * 10 + val;
239 }
240
241 if (digits < 1) {
242 ASN1error(ASN1_R_INVALID_NUMBER);
243 return 0;
244 }
245
246 *out_arc = arc;
247
248 return 1;
249}
250
251static int
252a2c_ASN1_OBJECT_internal(CBB *cbb, CBS *cbs)
253{
254 uint64_t arc, si1, si2;
255 char separator = 0;
256
257 if (!oid_parse_arc_txt(cbs, &si1, &separator, 1))
258 return 0;
259
260 if (CBS_len(cbs) == 0) {
261 ASN1error(ASN1_R_MISSING_SECOND_NUMBER);
262 return 0;
263 }
264
265 if (!oid_parse_arc_txt(cbs, &si2, &separator, 0))
266 return 0;
267
268 /*
269 * X.690 section 8.19 - the first two subidentifiers are encoded as
270 * (x * 40) + y, with x being limited to [0,1,2]. The second
271 * subidentifier cannot exceed 39 for x < 2.
272 */
273 if (si1 > 2) {
274 ASN1error(ASN1_R_FIRST_NUM_TOO_LARGE);
275 return 0;
276 }
277 if ((si1 < 2 && si2 >= 40) || si2 > UINT64_MAX - si1 * 40) {
278 ASN1error(ASN1_R_SECOND_NUMBER_TOO_LARGE);
279 return 0;
280 }
281 arc = si1 * 40 + si2;
282
283 if (!oid_add_arc(cbb, arc))
284 return 0;
285
286 while (CBS_len(cbs) > 0) {
287 if (!oid_parse_arc_txt(cbs, &arc, &separator, 0))
288 return 0;
289 if (!oid_add_arc(cbb, arc))
290 return 0;
291 }
292
293 return 1;
294}
295
296static int
297c2a_ASN1_OBJECT(CBS *cbs, CBB *cbb)
298{
299 uint64_t arc, si1, si2;
300
301 /*
302 * X.690 section 8.19 - the first two subidentifiers are encoded as
303 * (x * 40) + y, with x being limited to [0,1,2].
304 */
305 if (!oid_parse_arc(cbs, &arc))
306 return 0;
307 if ((si1 = arc / 40) > 2)
308 si1 = 2;
309 si2 = arc - si1 * 40;
310
311 if (!oid_add_arc_txt(cbb, si1, 1))
312 return 0;
313 if (!oid_add_arc_txt(cbb, si2, 0))
314 return 0;
315
316 while (CBS_len(cbs) > 0) {
317 if (!oid_parse_arc(cbs, &arc))
318 return 0;
319 if (!oid_add_arc_txt(cbb, arc, 0))
320 return 0;
321 }
322
323 /* NUL terminate. */
324 if (!CBB_add_u8(cbb, 0))
325 return 0;
326
327 return 1;
328}
329
330int
331a2d_ASN1_OBJECT(unsigned char *out, int out_len, const char *in, int in_len)
332{
333 uint8_t *data = NULL;
334 size_t data_len;
335 CBS cbs;
336 CBB cbb;
337 int ret = 0;
338
339 memset(&cbb, 0, sizeof(cbb));
340
341 if (in_len == -1)
342 in_len = strlen(in);
343 if (in_len <= 0)
344 goto err;
345
346 CBS_init(&cbs, in, in_len);
347
348 if (!CBB_init(&cbb, 0))
349 goto err;
350 if (!a2c_ASN1_OBJECT_internal(&cbb, &cbs))
351 goto err;
352 if (!CBB_finish(&cbb, &data, &data_len))
353 goto err;
354
355 if (data_len > INT_MAX)
356 goto err;
357
358 if (out != NULL) {
359 if (out_len <= 0 || (size_t)out_len < data_len) {
360 ASN1error(ASN1_R_BUFFER_TOO_SMALL);
361 goto err;
362 }
363 memcpy(out, data, data_len);
364 }
365
366 ret = (int)data_len;
367
368 err:
369 CBB_cleanup(&cbb);
370 free(data);
371
372 return ret;
373}
374LCRYPTO_ALIAS(a2d_ASN1_OBJECT);
375
376static int
377i2t_ASN1_OBJECT_oid(const ASN1_OBJECT *aobj, CBB *cbb)
378{
379 CBS cbs;
380
381 CBS_init(&cbs, aobj->data, aobj->length);
382
383 return c2a_ASN1_OBJECT(&cbs, cbb);
384}
385
386static int
387i2t_ASN1_OBJECT_name(const ASN1_OBJECT *aobj, CBB *cbb, const char **out_name)
388{
389 const char *name;
390 int nid;
391
392 *out_name = NULL;
393
394 if ((nid = OBJ_obj2nid(aobj)) == NID_undef)
395 return 0;
396
397 if ((name = OBJ_nid2ln(nid)) == NULL)
398 name = OBJ_nid2sn(nid);
399 if (name == NULL)
400 return 0;
401
402 *out_name = name;
403
404 if (!CBB_add_bytes(cbb, name, strlen(name)))
405 return 0;
406
407 /* NUL terminate. */
408 if (!CBB_add_u8(cbb, 0))
409 return 0;
410
411 return 1;
412}
413
414static int
415i2t_ASN1_OBJECT_cbb(const ASN1_OBJECT *aobj, CBB *cbb, int no_name)
416{
417 const char *name;
418
419 if (!no_name) {
420 if (i2t_ASN1_OBJECT_name(aobj, cbb, &name))
421 return 1;
422 if (name != NULL)
423 return 0;
424 }
425 return i2t_ASN1_OBJECT_oid(aobj, cbb);
426}
427
428int
429i2t_ASN1_OBJECT_internal(const ASN1_OBJECT *aobj, char *buf, int buf_len, int no_name)
430{
431 uint8_t *data = NULL;
432 size_t data_len;
433 CBB cbb;
434 int ret = 0;
435
436 if (buf_len < 0)
437 return 0;
438 if (buf_len > 0)
439 buf[0] = '\0';
440
441 if (aobj == NULL || aobj->data == NULL)
442 return 0;
443
444 if (!CBB_init(&cbb, 0))
445 goto err;
446 if (!i2t_ASN1_OBJECT_cbb(aobj, &cbb, no_name))
447 goto err;
448 if (!CBB_finish(&cbb, &data, &data_len))
449 goto err;
450
451 ret = strlcpy(buf, data, buf_len);
452 err:
453 CBB_cleanup(&cbb);
454 free(data);
455
456 return ret;
457}
458
459int
460i2t_ASN1_OBJECT(char *buf, int buf_len, const ASN1_OBJECT *aobj)
461{
462 return i2t_ASN1_OBJECT_internal(aobj, buf, buf_len, 0);
463}
464LCRYPTO_ALIAS(i2t_ASN1_OBJECT);
465
466ASN1_OBJECT *
467t2i_ASN1_OBJECT_internal(const char *oid)
468{
469 ASN1_OBJECT *aobj = NULL;
470 uint8_t *data = NULL;
471 size_t data_len;
472 CBB cbb;
473 CBS cbs;
474
475 memset(&cbb, 0, sizeof(cbb));
476
477 CBS_init(&cbs, oid, strlen(oid));
478
479 if (!CBB_init(&cbb, 0))
480 goto err;
481 if (!a2c_ASN1_OBJECT_internal(&cbb, &cbs))
482 goto err;
483 if (!CBB_finish(&cbb, &data, &data_len))
484 goto err;
485
486 if (data_len > INT_MAX)
487 goto err;
488
489 if ((aobj = ASN1_OBJECT_new()) == NULL)
490 goto err;
491
492 aobj->data = data;
493 aobj->length = (int)data_len;
494 aobj->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
495 data = NULL;
496
497 err:
498 CBB_cleanup(&cbb);
499 free(data);
500
501 return aobj;
502}
503
504int
505i2a_ASN1_OBJECT(BIO *bp, const ASN1_OBJECT *aobj)
506{
507 uint8_t *data = NULL;
508 size_t data_len;
509 CBB cbb;
510 int ret = -1;
511
512 if (aobj == NULL || aobj->data == NULL)
513 return BIO_write(bp, "NULL", 4);
514
515 if (!CBB_init(&cbb, 0))
516 goto err;
517 if (!i2t_ASN1_OBJECT_cbb(aobj, &cbb, 0)) {
518 ret = BIO_write(bp, "<INVALID>", 9);
519 goto err;
520 }
521 if (!CBB_finish(&cbb, &data, &data_len))
522 goto err;
523
524 ret = BIO_write(bp, data, strlen(data));
525
526 err:
527 CBB_cleanup(&cbb);
528 free(data);
529
530 return ret;
531}
532LCRYPTO_ALIAS(i2a_ASN1_OBJECT);
533
534int
535c2i_ASN1_OBJECT_cbs(ASN1_OBJECT **out_aobj, CBS *content)
536{
537 ASN1_OBJECT *aobj = NULL;
538 uint8_t *data = NULL;
539 size_t data_len;
540 CBS cbs;
541
542 if (out_aobj == NULL)
543 goto err;
544
545 if (*out_aobj != NULL) {
546 ASN1_OBJECT_free(*out_aobj);
547 *out_aobj = NULL;
548 }
549
550 /* Parse and validate OID encoding per X.690 8.19.2. */
551 CBS_dup(content, &cbs);
552 if (CBS_len(&cbs) == 0) {
553 ASN1error(ASN1_R_INVALID_OBJECT_ENCODING);
554 goto err;
555 }
556 while (CBS_len(&cbs) > 0) {
557 if (!oid_parse_arc(&cbs, NULL)) {
558 ASN1error(ASN1_R_INVALID_OBJECT_ENCODING);
559 goto err;
560 }
561 }
562
563 if (!CBS_stow(content, &data, &data_len))
564 goto err;
565
566 if (data_len > INT_MAX)
567 goto err;
568
569 if ((aobj = ASN1_OBJECT_new()) == NULL)
570 goto err;
571
572 aobj->data = data;
573 aobj->length = (int)data_len; /* XXX - change length to size_t. */
574 aobj->flags |= ASN1_OBJECT_FLAG_DYNAMIC_DATA;
575
576 *out_aobj = aobj;
577
578 return 1;
579
580 err:
581 ASN1_OBJECT_free(aobj);
582 free(data);
583
584 return 0;
585}
586
587ASN1_OBJECT *
588c2i_ASN1_OBJECT(ASN1_OBJECT **out_aobj, const unsigned char **pp, long len)
589{
590 ASN1_OBJECT *aobj = NULL;
591 CBS content;
592
593 if (out_aobj != NULL) {
594 ASN1_OBJECT_free(*out_aobj);
595 *out_aobj = NULL;
596 }
597
598 if (len < 0) {
599 ASN1error(ASN1_R_LENGTH_ERROR);
600 return NULL;
601 }
602
603 CBS_init(&content, *pp, len);
604
605 if (!c2i_ASN1_OBJECT_cbs(&aobj, &content))
606 return NULL;
607
608 *pp = CBS_data(&content);
609
610 if (out_aobj != NULL)
611 *out_aobj = aobj;
612
613 return aobj;
614}
615
616int
617i2d_ASN1_OBJECT(const ASN1_OBJECT *a, unsigned char **pp)
618{
619 unsigned char *buf, *p;
620 int objsize;
621
622 if (a == NULL || a->data == NULL)
623 return -1;
624
625 objsize = ASN1_object_size(0, a->length, V_ASN1_OBJECT);
626
627 if (pp == NULL)
628 return objsize;
629
630 if ((buf = *pp) == NULL)
631 buf = calloc(1, objsize);
632 if (buf == NULL)
633 return -1;
634
635 p = buf;
636 ASN1_put_object(&p, 0, a->length, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
637 memcpy(p, a->data, a->length);
638 p += a->length;
639
640 /* If buf was allocated, return it, otherwise return the advanced p. */
641 if (*pp == NULL)
642 p = buf;
643
644 *pp = p;
645
646 return objsize;
647}
648LCRYPTO_ALIAS(i2d_ASN1_OBJECT);
649
650ASN1_OBJECT *
651d2i_ASN1_OBJECT(ASN1_OBJECT **out_aobj, const unsigned char **pp, long length)
652{
653 ASN1_OBJECT *aobj = NULL;
654 uint32_t tag_number;
655 CBS cbs, content;
656
657 if (out_aobj != NULL) {
658 ASN1_OBJECT_free(*out_aobj);
659 *out_aobj = NULL;
660 }
661
662 if (length < 0) {
663 ASN1error(ASN1_R_LENGTH_ERROR);
664 return NULL;
665 }
666
667 CBS_init(&cbs, *pp, length);
668
669 if (!asn1_get_primitive(&cbs, 0, &tag_number, &content)) {
670 ASN1error(ASN1_R_BAD_OBJECT_HEADER);
671 return NULL;
672 }
673 if (tag_number != V_ASN1_OBJECT) {
674 ASN1error(ASN1_R_EXPECTING_AN_OBJECT);
675 return NULL;
676 }
677
678 if (!c2i_ASN1_OBJECT_cbs(&aobj, &content))
679 return NULL;
680
681 *pp = CBS_data(&cbs);
682
683 if (out_aobj != NULL)
684 *out_aobj = aobj;
685
686 return aobj;
687}
688LCRYPTO_ALIAS(d2i_ASN1_OBJECT);
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-12-23 13:32:06 +0000