1 /*
2 * Copyright 1995-2022 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 <stdio.h>
11 #include "crypto/ctype.h"
12 #include <limits.h>
13 #include "internal/cryptlib.h"
14 #include "internal/thread_once.h"
15 #include "internal/tsan_assist.h"
16 #include <openssl/lhash.h>
17 #include <openssl/asn1.h>
18 #include "crypto/objects.h"
19 #include <openssl/bn.h>
20 #include "crypto/asn1.h"
21 #include "obj_local.h"
22
23 /* obj_dat.h is generated from objects.txt and obj_mac.{num,h} by obj_dat.pl */
24 #include "obj_dat.h"
25
26 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
27 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
28 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
29
30 #define ADDED_DATA 0
31 #define ADDED_SNAME 1
32 #define ADDED_LNAME 2
33 #define ADDED_NID 3
34
35 struct added_obj_st {
36 int type;
37 ASN1_OBJECT *obj;
38 };
39
40 static LHASH_OF(ADDED_OBJ) *added = NULL;
41 static CRYPTO_RWLOCK *ossl_obj_lock = NULL;
42 #ifdef TSAN_REQUIRES_LOCKING
43 static CRYPTO_RWLOCK *ossl_obj_nid_lock = NULL;
44 #endif
45
46 static CRYPTO_ONCE ossl_obj_lock_init = CRYPTO_ONCE_STATIC_INIT;
47
objs_free_locks(void)48 static ossl_inline void objs_free_locks(void)
49 {
50 CRYPTO_THREAD_lock_free(ossl_obj_lock);
51 ossl_obj_lock = NULL;
52 #ifdef TSAN_REQUIRES_LOCKING
53 CRYPTO_THREAD_lock_free(ossl_obj_nid_lock);
54 ossl_obj_nid_lock = NULL;
55 #endif
56 }
57
DEFINE_RUN_ONCE_STATIC(obj_lock_initialise)58 DEFINE_RUN_ONCE_STATIC(obj_lock_initialise)
59 {
60 /* Make sure we've loaded config before checking for any "added" objects */
61 OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CONFIG, NULL);
62
63 ossl_obj_lock = CRYPTO_THREAD_lock_new();
64 if (ossl_obj_lock == NULL)
65 return 0;
66
67 #ifdef TSAN_REQUIRES_LOCKING
68 ossl_obj_nid_lock = CRYPTO_THREAD_lock_new();
69 if (ossl_obj_nid_lock == NULL) {
70 objs_free_locks();
71 return 0;
72 }
73 #endif
74 return 1;
75 }
76
ossl_init_added_lock(void)77 static ossl_inline int ossl_init_added_lock(void)
78 {
79 return RUN_ONCE(&ossl_obj_lock_init, obj_lock_initialise);
80 }
81
ossl_obj_write_lock(int lock)82 static ossl_inline int ossl_obj_write_lock(int lock)
83 {
84 if (!lock)
85 return 1;
86 if (!ossl_init_added_lock())
87 return 0;
88 return CRYPTO_THREAD_write_lock(ossl_obj_lock);
89 }
90
ossl_obj_read_lock(int lock)91 static ossl_inline int ossl_obj_read_lock(int lock)
92 {
93 if (!lock)
94 return 1;
95 if (!ossl_init_added_lock())
96 return 0;
97 return CRYPTO_THREAD_read_lock(ossl_obj_lock);
98 }
99
ossl_obj_unlock(int lock)100 static ossl_inline void ossl_obj_unlock(int lock)
101 {
102 if (lock)
103 CRYPTO_THREAD_unlock(ossl_obj_lock);
104 }
105
sn_cmp(const ASN1_OBJECT * const * a,const unsigned int * b)106 static int sn_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
107 {
108 return strcmp((*a)->sn, nid_objs[*b].sn);
109 }
110
111 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
112
ln_cmp(const ASN1_OBJECT * const * a,const unsigned int * b)113 static int ln_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
114 {
115 return strcmp((*a)->ln, nid_objs[*b].ln);
116 }
117
118 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
119
added_obj_hash(const ADDED_OBJ * ca)120 static unsigned long added_obj_hash(const ADDED_OBJ *ca)
121 {
122 const ASN1_OBJECT *a;
123 int i;
124 unsigned long ret = 0;
125 unsigned char *p;
126
127 a = ca->obj;
128 switch (ca->type) {
129 case ADDED_DATA:
130 ret = a->length << 20L;
131 p = (unsigned char *)a->data;
132 for (i = 0; i < a->length; i++)
133 ret ^= p[i] << ((i * 3) % 24);
134 break;
135 case ADDED_SNAME:
136 ret = OPENSSL_LH_strhash(a->sn);
137 break;
138 case ADDED_LNAME:
139 ret = OPENSSL_LH_strhash(a->ln);
140 break;
141 case ADDED_NID:
142 ret = a->nid;
143 break;
144 default:
145 /* abort(); */
146 return 0;
147 }
148 ret &= 0x3fffffffL;
149 ret |= ((unsigned long)ca->type) << 30L;
150 return ret;
151 }
152
added_obj_cmp(const ADDED_OBJ * ca,const ADDED_OBJ * cb)153 static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb)
154 {
155 ASN1_OBJECT *a, *b;
156 int i;
157
158 i = ca->type - cb->type;
159 if (i)
160 return i;
161 a = ca->obj;
162 b = cb->obj;
163 switch (ca->type) {
164 case ADDED_DATA:
165 i = (a->length - b->length);
166 if (i)
167 return i;
168 return memcmp(a->data, b->data, (size_t)a->length);
169 case ADDED_SNAME:
170 if (a->sn == NULL)
171 return -1;
172 else if (b->sn == NULL)
173 return 1;
174 else
175 return strcmp(a->sn, b->sn);
176 case ADDED_LNAME:
177 if (a->ln == NULL)
178 return -1;
179 else if (b->ln == NULL)
180 return 1;
181 else
182 return strcmp(a->ln, b->ln);
183 case ADDED_NID:
184 return a->nid - b->nid;
185 default:
186 /* abort(); */
187 return 0;
188 }
189 }
190
cleanup1_doall(ADDED_OBJ * a)191 static void cleanup1_doall(ADDED_OBJ *a)
192 {
193 a->obj->nid = 0;
194 a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC |
195 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA;
196 }
197
cleanup2_doall(ADDED_OBJ * a)198 static void cleanup2_doall(ADDED_OBJ *a)
199 {
200 a->obj->nid++;
201 }
202
cleanup3_doall(ADDED_OBJ * a)203 static void cleanup3_doall(ADDED_OBJ *a)
204 {
205 if (--a->obj->nid == 0)
206 ASN1_OBJECT_free(a->obj);
207 OPENSSL_free(a);
208 }
209
ossl_obj_cleanup_int(void)210 void ossl_obj_cleanup_int(void)
211 {
212 if (added != NULL) {
213 lh_ADDED_OBJ_set_down_load(added, 0);
214 lh_ADDED_OBJ_doall(added, cleanup1_doall); /* zero counters */
215 lh_ADDED_OBJ_doall(added, cleanup2_doall); /* set counters */
216 lh_ADDED_OBJ_doall(added, cleanup3_doall); /* free objects */
217 lh_ADDED_OBJ_free(added);
218 added = NULL;
219 }
220 objs_free_locks();
221 }
222
OBJ_new_nid(int num)223 int OBJ_new_nid(int num)
224 {
225 static TSAN_QUALIFIER int new_nid = NUM_NID;
226 #ifdef TSAN_REQUIRES_LOCKING
227 int i;
228
229 if (!CRYPTO_THREAD_write_lock(ossl_obj_nid_lock)) {
230 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_WRITE_LOCK);
231 return NID_undef;
232 }
233 i = new_nid;
234 new_nid += num;
235 CRYPTO_THREAD_unlock(ossl_obj_nid_lock);
236 return i;
237 #else
238 return tsan_add(&new_nid, num);
239 #endif
240 }
241
ossl_obj_add_object(const ASN1_OBJECT * obj,int lock)242 static int ossl_obj_add_object(const ASN1_OBJECT *obj, int lock)
243 {
244 ASN1_OBJECT *o = NULL;
245 ADDED_OBJ *ao[4] = { NULL, NULL, NULL, NULL }, *aop;
246 int i;
247
248 if ((o = OBJ_dup(obj)) == NULL)
249 return NID_undef;
250 if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL
251 || (o->length != 0
252 && obj->data != NULL
253 && (ao[ADDED_DATA] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
254 || (o->sn != NULL
255 && (ao[ADDED_SNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
256 || (o->ln != NULL
257 && (ao[ADDED_LNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)) {
258 ERR_raise(ERR_LIB_OBJ, ERR_R_MALLOC_FAILURE);
259 goto err2;
260 }
261
262 if (!ossl_obj_write_lock(lock)) {
263 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_WRITE_LOCK);
264 goto err2;
265 }
266 if (added == NULL) {
267 added = lh_ADDED_OBJ_new(added_obj_hash, added_obj_cmp);
268 if (added == NULL) {
269 ERR_raise(ERR_LIB_OBJ, ERR_R_MALLOC_FAILURE);
270 goto err;
271 }
272 }
273
274 for (i = ADDED_DATA; i <= ADDED_NID; i++) {
275 if (ao[i] != NULL) {
276 ao[i]->type = i;
277 ao[i]->obj = o;
278 aop = lh_ADDED_OBJ_insert(added, ao[i]);
279 /* memory leak, but should not normally matter */
280 OPENSSL_free(aop);
281 }
282 }
283 o->flags &=
284 ~(ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
285 ASN1_OBJECT_FLAG_DYNAMIC_DATA);
286
287 ossl_obj_unlock(lock);
288 return o->nid;
289
290 err:
291 ossl_obj_unlock(lock);
292 err2:
293 for (i = ADDED_DATA; i <= ADDED_NID; i++)
294 OPENSSL_free(ao[i]);
295 ASN1_OBJECT_free(o);
296 return NID_undef;
297 }
298
OBJ_nid2obj(int n)299 ASN1_OBJECT *OBJ_nid2obj(int n)
300 {
301 ADDED_OBJ ad, *adp = NULL;
302 ASN1_OBJECT ob;
303
304 if (n == NID_undef)
305 return NULL;
306 if (n >= 0 && n < NUM_NID && nid_objs[n].nid != NID_undef)
307 return (ASN1_OBJECT *)&(nid_objs[n]);
308
309 ad.type = ADDED_NID;
310 ad.obj = &ob;
311 ob.nid = n;
312 if (!ossl_obj_read_lock(1)) {
313 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_READ_LOCK);
314 return NULL;
315 }
316 if (added != NULL)
317 adp = lh_ADDED_OBJ_retrieve(added, &ad);
318 ossl_obj_unlock(1);
319 if (adp != NULL)
320 return adp->obj;
321
322 ERR_raise(ERR_LIB_OBJ, OBJ_R_UNKNOWN_NID);
323 return NULL;
324 }
325
OBJ_nid2sn(int n)326 const char *OBJ_nid2sn(int n)
327 {
328 ASN1_OBJECT *ob = OBJ_nid2obj(n);
329
330 return ob == NULL ? NULL : ob->sn;
331 }
332
OBJ_nid2ln(int n)333 const char *OBJ_nid2ln(int n)
334 {
335 ASN1_OBJECT *ob = OBJ_nid2obj(n);
336
337 return ob == NULL ? NULL : ob->ln;
338 }
339
obj_cmp(const ASN1_OBJECT * const * ap,const unsigned int * bp)340 static int obj_cmp(const ASN1_OBJECT *const *ap, const unsigned int *bp)
341 {
342 int j;
343 const ASN1_OBJECT *a = *ap;
344 const ASN1_OBJECT *b = &nid_objs[*bp];
345
346 j = (a->length - b->length);
347 if (j)
348 return j;
349 if (a->length == 0)
350 return 0;
351 return memcmp(a->data, b->data, a->length);
352 }
353
354 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
355
ossl_obj_obj2nid(const ASN1_OBJECT * a,const int lock)356 static int ossl_obj_obj2nid(const ASN1_OBJECT *a, const int lock)
357 {
358 int nid = NID_undef;
359 const unsigned int *op;
360 ADDED_OBJ ad, *adp;
361
362 if (a == NULL)
363 return NID_undef;
364 if (a->nid != NID_undef)
365 return a->nid;
366 if (a->length == 0)
367 return NID_undef;
368
369 op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
370 if (op != NULL)
371 return nid_objs[*op].nid;
372 if (!ossl_obj_read_lock(lock)) {
373 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_READ_LOCK);
374 return NID_undef;
375 }
376 if (added != NULL) {
377 ad.type = ADDED_DATA;
378 ad.obj = (ASN1_OBJECT *)a; /* casting away const is harmless here */
379 adp = lh_ADDED_OBJ_retrieve(added, &ad);
380 if (adp != NULL)
381 nid = adp->obj->nid;
382 }
383 ossl_obj_unlock(lock);
384 return nid;
385 }
386
387 /*
388 * Convert an object name into an ASN1_OBJECT if "noname" is not set then
389 * search for short and long names first. This will convert the "dotted" form
390 * into an object: unlike OBJ_txt2nid it can be used with any objects, not
391 * just registered ones.
392 */
OBJ_txt2obj(const char * s,int no_name)393 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
394 {
395 int nid = NID_undef;
396 ASN1_OBJECT *op = NULL;
397 unsigned char *buf;
398 unsigned char *p;
399 const unsigned char *cp;
400 int i, j;
401
402 if (!no_name) {
403 if ((nid = OBJ_sn2nid(s)) != NID_undef
404 || (nid = OBJ_ln2nid(s)) != NID_undef) {
405 return OBJ_nid2obj(nid);
406 }
407 if (!ossl_isdigit(*s)) {
408 ERR_raise(ERR_LIB_OBJ, OBJ_R_UNKNOWN_OBJECT_NAME);
409 return NULL;
410 }
411 }
412
413 /* Work out size of content octets */
414 i = a2d_ASN1_OBJECT(NULL, 0, s, -1);
415 if (i <= 0)
416 return NULL;
417
418 /* Work out total size */
419 j = ASN1_object_size(0, i, V_ASN1_OBJECT);
420 if (j < 0)
421 return NULL;
422
423 if ((buf = OPENSSL_malloc(j)) == NULL) {
424 ERR_raise(ERR_LIB_OBJ, ERR_R_MALLOC_FAILURE);
425 return NULL;
426 }
427
428 p = buf;
429 /* Write out tag+length */
430 ASN1_put_object(&p, 0, i, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
431 /* Write out contents */
432 a2d_ASN1_OBJECT(p, i, s, -1);
433
434 cp = buf;
435 op = d2i_ASN1_OBJECT(NULL, &cp, j);
436 OPENSSL_free(buf);
437 return op;
438 }
439
OBJ_obj2txt(char * buf,int buf_len,const ASN1_OBJECT * a,int no_name)440 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
441 {
442 int i, n = 0, len, nid, first, use_bn;
443 BIGNUM *bl;
444 unsigned long l;
445 const unsigned char *p;
446 char tbuf[DECIMAL_SIZE(i) + DECIMAL_SIZE(l) + 2];
447 const char *s;
448
449 /* Ensure that, at every state, |buf| is NUL-terminated. */
450 if (buf != NULL && buf_len > 0)
451 buf[0] = '\0';
452
453 if (a == NULL || a->data == NULL)
454 return 0;
455
456 if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) {
457 s = OBJ_nid2ln(nid);
458 if (s == NULL)
459 s = OBJ_nid2sn(nid);
460 if (s != NULL) {
461 if (buf != NULL)
462 OPENSSL_strlcpy(buf, s, buf_len);
463 return (int)strlen(s);
464 }
465 }
466
467 len = a->length;
468 p = a->data;
469
470 first = 1;
471 bl = NULL;
472
473 while (len > 0) {
474 l = 0;
475 use_bn = 0;
476 for (;;) {
477 unsigned char c = *p++;
478
479 len--;
480 if (len == 0 && (c & 0x80) != 0)
481 goto err;
482 if (use_bn) {
483 if (!BN_add_word(bl, c & 0x7f))
484 goto err;
485 } else {
486 l |= c & 0x7f;
487 }
488 if ((c & 0x80) == 0)
489 break;
490 if (!use_bn && l > (ULONG_MAX >> 7L)) {
491 if (bl == NULL && (bl = BN_new()) == NULL)
492 goto err;
493 if (!BN_set_word(bl, l))
494 goto err;
495 use_bn = 1;
496 }
497 if (use_bn) {
498 if (!BN_lshift(bl, bl, 7))
499 goto err;
500 } else {
501 l <<= 7L;
502 }
503 }
504
505 if (first) {
506 first = 0;
507 if (l >= 80) {
508 i = 2;
509 if (use_bn) {
510 if (!BN_sub_word(bl, 80))
511 goto err;
512 } else {
513 l -= 80;
514 }
515 } else {
516 i = (int)(l / 40);
517 l -= (long)(i * 40);
518 }
519 if (buf != NULL && buf_len > 1) {
520 *buf++ = i + '0';
521 *buf = '\0';
522 buf_len--;
523 }
524 n++;
525 }
526
527 if (use_bn) {
528 char *bndec;
529 bndec = BN_bn2dec(bl);
530 if (!bndec)
531 goto err;
532 i = strlen(bndec);
533 if (buf != NULL) {
534 if (buf_len > 1) {
535 *buf++ = '.';
536 *buf = '\0';
537 buf_len--;
538 }
539 OPENSSL_strlcpy(buf, bndec, buf_len);
540 if (i > buf_len) {
541 buf += buf_len;
542 buf_len = 0;
543 } else {
544 buf += i;
545 buf_len -= i;
546 }
547 }
548 n++;
549 n += i;
550 OPENSSL_free(bndec);
551 } else {
552 BIO_snprintf(tbuf, sizeof(tbuf), ".%lu", l);
553 i = strlen(tbuf);
554 if (buf && buf_len > 0) {
555 OPENSSL_strlcpy(buf, tbuf, buf_len);
556 if (i > buf_len) {
557 buf += buf_len;
558 buf_len = 0;
559 } else {
560 buf += i;
561 buf_len -= i;
562 }
563 }
564 n += i;
565 l = 0;
566 }
567 }
568
569 BN_free(bl);
570 return n;
571
572 err:
573 BN_free(bl);
574 return -1;
575 }
576
OBJ_txt2nid(const char * s)577 int OBJ_txt2nid(const char *s)
578 {
579 ASN1_OBJECT *obj = OBJ_txt2obj(s, 0);
580 int nid = NID_undef;
581
582 if (obj != NULL) {
583 nid = OBJ_obj2nid(obj);
584 ASN1_OBJECT_free(obj);
585 }
586 return nid;
587 }
588
OBJ_ln2nid(const char * s)589 int OBJ_ln2nid(const char *s)
590 {
591 ASN1_OBJECT o;
592 const ASN1_OBJECT *oo = &o;
593 ADDED_OBJ ad, *adp;
594 const unsigned int *op;
595 int nid = NID_undef;
596
597 o.ln = s;
598 op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
599 if (op != NULL)
600 return nid_objs[*op].nid;
601 if (!ossl_obj_read_lock(1)) {
602 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_READ_LOCK);
603 return NID_undef;
604 }
605 if (added != NULL) {
606 ad.type = ADDED_LNAME;
607 ad.obj = &o;
608 adp = lh_ADDED_OBJ_retrieve(added, &ad);
609 if (adp != NULL)
610 nid = adp->obj->nid;
611 }
612 ossl_obj_unlock(1);
613 return nid;
614 }
615
OBJ_sn2nid(const char * s)616 int OBJ_sn2nid(const char *s)
617 {
618 ASN1_OBJECT o;
619 const ASN1_OBJECT *oo = &o;
620 ADDED_OBJ ad, *adp;
621 const unsigned int *op;
622 int nid = NID_undef;
623
624 o.sn = s;
625 op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
626 if (op != NULL)
627 return nid_objs[*op].nid;
628 if (!ossl_obj_read_lock(1)) {
629 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_READ_LOCK);
630 return NID_undef;
631 }
632 if (added != NULL) {
633 ad.type = ADDED_SNAME;
634 ad.obj = &o;
635 adp = lh_ADDED_OBJ_retrieve(added, &ad);
636 if (adp != NULL)
637 nid = adp->obj->nid;
638 }
639 ossl_obj_unlock(1);
640 return nid;
641 }
642
OBJ_bsearch_(const void * key,const void * base,int num,int size,int (* cmp)(const void *,const void *))643 const void *OBJ_bsearch_(const void *key, const void *base, int num, int size,
644 int (*cmp) (const void *, const void *))
645 {
646 return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
647 }
648
OBJ_bsearch_ex_(const void * key,const void * base,int num,int size,int (* cmp)(const void *,const void *),int flags)649 const void *OBJ_bsearch_ex_(const void *key, const void *base, int num,
650 int size,
651 int (*cmp) (const void *, const void *),
652 int flags)
653 {
654 const char *p = ossl_bsearch(key, base, num, size, cmp, flags);
655
656 #ifdef CHARSET_EBCDIC
657 /*
658 * THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and I
659 * don't have perl (yet), we revert to a *LINEAR* search when the object
660 * wasn't found in the binary search.
661 */
662 if (p == NULL) {
663 const char *base_ = base;
664 int l, h, i = 0, c = 0;
665
666 for (i = 0; i < num; ++i) {
667 p = &(base_[i * size]);
668 c = (*cmp) (key, p);
669 if (c == 0
670 || (c < 0 && (flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)))
671 return p;
672 }
673 }
674 #endif
675 return p;
676 }
677
678 /*
679 * Parse a BIO sink to create some extra oid's objects.
680 * Line format:<OID:isdigit or '.']><isspace><SN><isspace><LN>
681 */
OBJ_create_objects(BIO * in)682 int OBJ_create_objects(BIO *in)
683 {
684 char buf[512];
685 int i, num = 0;
686 char *o, *s, *l = NULL;
687
688 for (;;) {
689 s = o = NULL;
690 i = BIO_gets(in, buf, 512);
691 if (i <= 0)
692 return num;
693 buf[i - 1] = '\0';
694 if (!ossl_isalnum(buf[0]))
695 return num;
696 o = s = buf;
697 while (ossl_isdigit(*s) || *s == '.')
698 s++;
699 if (*s != '\0') {
700 *(s++) = '\0';
701 while (ossl_isspace(*s))
702 s++;
703 if (*s == '\0') {
704 s = NULL;
705 } else {
706 l = s;
707 while (*l != '\0' && !ossl_isspace(*l))
708 l++;
709 if (*l != '\0') {
710 *(l++) = '\0';
711 while (ossl_isspace(*l))
712 l++;
713 if (*l == '\0') {
714 l = NULL;
715 }
716 } else {
717 l = NULL;
718 }
719 }
720 } else {
721 s = NULL;
722 }
723 if (*o == '\0')
724 return num;
725 if (!OBJ_create(o, s, l))
726 return num;
727 num++;
728 }
729 }
730
OBJ_create(const char * oid,const char * sn,const char * ln)731 int OBJ_create(const char *oid, const char *sn, const char *ln)
732 {
733 ASN1_OBJECT *tmpoid = NULL;
734 int ok = 0;
735
736 /* Check to see if short or long name already present */
737 if ((sn != NULL && OBJ_sn2nid(sn) != NID_undef)
738 || (ln != NULL && OBJ_ln2nid(ln) != NID_undef)) {
739 ERR_raise(ERR_LIB_OBJ, OBJ_R_OID_EXISTS);
740 return 0;
741 }
742
743 /* Convert numerical OID string to an ASN1_OBJECT structure */
744 tmpoid = OBJ_txt2obj(oid, 1);
745 if (tmpoid == NULL)
746 return 0;
747
748 if (!ossl_obj_write_lock(1)) {
749 ERR_raise(ERR_LIB_OBJ, ERR_R_UNABLE_TO_GET_WRITE_LOCK);
750 ASN1_OBJECT_free(tmpoid);
751 return 0;
752 }
753
754 /* If NID is not NID_undef then object already exists */
755 if (ossl_obj_obj2nid(tmpoid, 0) != NID_undef) {
756 ERR_raise(ERR_LIB_OBJ, OBJ_R_OID_EXISTS);
757 goto err;
758 }
759
760 tmpoid->nid = OBJ_new_nid(1);
761 if (tmpoid->nid == NID_undef)
762 goto err;
763
764 tmpoid->sn = (char *)sn;
765 tmpoid->ln = (char *)ln;
766
767 ok = ossl_obj_add_object(tmpoid, 0);
768
769 tmpoid->sn = NULL;
770 tmpoid->ln = NULL;
771
772 err:
773 ossl_obj_unlock(1);
774 ASN1_OBJECT_free(tmpoid);
775 return ok;
776 }
777
OBJ_length(const ASN1_OBJECT * obj)778 size_t OBJ_length(const ASN1_OBJECT *obj)
779 {
780 if (obj == NULL)
781 return 0;
782 return obj->length;
783 }
784
OBJ_get0_data(const ASN1_OBJECT * obj)785 const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj)
786 {
787 if (obj == NULL)
788 return NULL;
789 return obj->data;
790 }
791
OBJ_add_object(const ASN1_OBJECT * obj)792 int OBJ_add_object(const ASN1_OBJECT *obj)
793 {
794 return ossl_obj_add_object(obj, 1);
795 }
796
OBJ_obj2nid(const ASN1_OBJECT * a)797 int OBJ_obj2nid(const ASN1_OBJECT *a)
798 {
799 return ossl_obj_obj2nid(a, 1);
800 }
801
