1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
61 #include "internal/cryptlib.h"
62 #include <openssl/lhash.h>
63 #include <openssl/asn1.h>
64 #include "internal/objects.h"
65 #include <openssl/bn.h>
66 #include "internal/asn1_int.h"
69 /* obj_dat.h is generated from objects.h by obj_dat.pl */
72 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
73 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
74 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
86 static int new_nid = NUM_NID;
87 static LHASH_OF(ADDED_OBJ) *added = NULL;
89 static int sn_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
91 return (strcmp((*a)->sn, nid_objs[*b].sn));
94 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
96 static int ln_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
98 return (strcmp((*a)->ln, nid_objs[*b].ln));
101 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
103 static unsigned long added_obj_hash(const ADDED_OBJ *ca)
105 const ASN1_OBJECT *a;
107 unsigned long ret = 0;
113 ret = a->length << 20L;
114 p = (unsigned char *)a->data;
115 for (i = 0; i < a->length; i++)
116 ret ^= p[i] << ((i * 3) % 24);
119 ret = lh_strhash(a->sn);
122 ret = lh_strhash(a->ln);
132 ret |= ((unsigned long)ca->type) << 30L;
136 static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb)
141 i = ca->type - cb->type;
148 i = (a->length - b->length);
151 return (memcmp(a->data, b->data, (size_t)a->length));
155 else if (b->sn == NULL)
158 return (strcmp(a->sn, b->sn));
162 else if (b->ln == NULL)
165 return (strcmp(a->ln, b->ln));
167 return (a->nid - b->nid);
174 static int init_added(void)
178 added = lh_ADDED_OBJ_new(added_obj_hash, added_obj_cmp);
179 return (added != NULL);
182 static void cleanup1_doall(ADDED_OBJ *a)
185 a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC |
186 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA;
189 static void cleanup2_doall(ADDED_OBJ *a)
194 static void cleanup3_doall(ADDED_OBJ *a)
196 if (--a->obj->nid == 0)
197 ASN1_OBJECT_free(a->obj);
202 * The purpose of obj_cleanup_defer is to avoid evp_cleanup_intern() attempting
203 * to use freed up OIDs. If necessary the actual freeing up of OIDs is delayed.
205 int obj_cleanup_defer = 0;
207 void check_defer(int nid)
209 if (!obj_cleanup_defer && nid >= NUM_NID)
210 obj_cleanup_defer = 1;
213 void obj_cleanup_intern(void)
215 if (obj_cleanup_defer) {
216 obj_cleanup_defer = 2;
221 lh_ADDED_OBJ_set_down_load(added, 0);
222 lh_ADDED_OBJ_doall(added, cleanup1_doall); /* zero counters */
223 lh_ADDED_OBJ_doall(added, cleanup2_doall); /* set counters */
224 lh_ADDED_OBJ_doall(added, cleanup3_doall); /* free objects */
225 lh_ADDED_OBJ_free(added);
229 int OBJ_new_nid(int num)
238 int OBJ_add_object(const ASN1_OBJECT *obj)
241 ADDED_OBJ *ao[4] = { NULL, NULL, NULL, NULL }, *aop;
247 if ((o = OBJ_dup(obj)) == NULL)
249 if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
251 if ((o->length != 0) && (obj->data != NULL))
252 if ((ao[ADDED_DATA] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
255 if ((ao[ADDED_SNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
258 if ((ao[ADDED_LNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
261 for (i = ADDED_DATA; i <= ADDED_NID; i++) {
265 aop = lh_ADDED_OBJ_insert(added, ao[i]);
266 /* memory leak, buit should not normally matter */
271 ~(ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
272 ASN1_OBJECT_FLAG_DYNAMIC_DATA);
276 OBJerr(OBJ_F_OBJ_ADD_OBJECT, ERR_R_MALLOC_FAILURE);
278 for (i = ADDED_DATA; i <= ADDED_NID; i++)
284 ASN1_OBJECT *OBJ_nid2obj(int n)
289 if ((n >= 0) && (n < NUM_NID)) {
290 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
291 OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
294 return ((ASN1_OBJECT *)&(nid_objs[n]));
295 } else if (added == NULL)
301 adp = lh_ADDED_OBJ_retrieve(added, &ad);
305 OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
311 const char *OBJ_nid2sn(int n)
316 if ((n >= 0) && (n < NUM_NID)) {
317 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
318 OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
321 return (nid_objs[n].sn);
322 } else if (added == NULL)
328 adp = lh_ADDED_OBJ_retrieve(added, &ad);
330 return (adp->obj->sn);
332 OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
338 const char *OBJ_nid2ln(int n)
343 if ((n >= 0) && (n < NUM_NID)) {
344 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
345 OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
348 return (nid_objs[n].ln);
349 } else if (added == NULL)
355 adp = lh_ADDED_OBJ_retrieve(added, &ad);
357 return (adp->obj->ln);
359 OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
365 static int obj_cmp(const ASN1_OBJECT *const *ap, const unsigned int *bp)
368 const ASN1_OBJECT *a = *ap;
369 const ASN1_OBJECT *b = &nid_objs[*bp];
371 j = (a->length - b->length);
376 return (memcmp(a->data, b->data, a->length));
379 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
381 int OBJ_obj2nid(const ASN1_OBJECT *a)
383 const unsigned int *op;
395 ad.type = ADDED_DATA;
396 ad.obj = (ASN1_OBJECT *)a; /* XXX: ugly but harmless */
397 adp = lh_ADDED_OBJ_retrieve(added, &ad);
399 return (adp->obj->nid);
401 op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
404 return (nid_objs[*op].nid);
408 * Convert an object name into an ASN1_OBJECT if "noname" is not set then
409 * search for short and long names first. This will convert the "dotted" form
410 * into an object: unlike OBJ_txt2nid it can be used with any objects, not
411 * just registered ones.
414 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
417 ASN1_OBJECT *op = NULL;
420 const unsigned char *cp;
424 if (((nid = OBJ_sn2nid(s)) != NID_undef) ||
425 ((nid = OBJ_ln2nid(s)) != NID_undef))
426 return OBJ_nid2obj(nid);
429 /* Work out size of content octets */
430 i = a2d_ASN1_OBJECT(NULL, 0, s, -1);
432 /* Don't clear the error */
438 /* Work out total size */
439 j = ASN1_object_size(0, i, V_ASN1_OBJECT);
441 if ((buf = OPENSSL_malloc(j)) == NULL)
445 /* Write out tag+length */
446 ASN1_put_object(&p, 0, i, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
447 /* Write out contents */
448 a2d_ASN1_OBJECT(p, i, s, -1);
451 op = d2i_ASN1_OBJECT(NULL, &cp, j);
456 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
458 int i, n = 0, len, nid, first, use_bn;
461 const unsigned char *p;
462 char tbuf[DECIMAL_SIZE(i) + DECIMAL_SIZE(l) + 2];
464 /* Ensure that, at every state, |buf| is NUL-terminated. */
465 if (buf && buf_len > 0)
468 if ((a == NULL) || (a->data == NULL))
471 if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) {
478 OPENSSL_strlcpy(buf, s, buf_len);
494 unsigned char c = *p++;
496 if ((len == 0) && (c & 0x80))
499 if (!BN_add_word(bl, c & 0x7f))
505 if (!use_bn && (l > (ULONG_MAX >> 7L))) {
506 if (bl == NULL && (bl = BN_new()) == NULL)
508 if (!BN_set_word(bl, l))
513 if (!BN_lshift(bl, bl, 7))
524 if (!BN_sub_word(bl, 80))
532 if (buf && (buf_len > 1)) {
542 bndec = BN_bn2dec(bl);
552 OPENSSL_strlcpy(buf, bndec, buf_len);
565 BIO_snprintf(tbuf, sizeof tbuf, ".%lu", l);
567 if (buf && (buf_len > 0)) {
568 OPENSSL_strlcpy(buf, tbuf, buf_len);
590 int OBJ_txt2nid(const char *s)
594 obj = OBJ_txt2obj(s, 0);
595 nid = OBJ_obj2nid(obj);
596 ASN1_OBJECT_free(obj);
600 int OBJ_ln2nid(const char *s)
603 const ASN1_OBJECT *oo = &o;
605 const unsigned int *op;
609 ad.type = ADDED_LNAME;
611 adp = lh_ADDED_OBJ_retrieve(added, &ad);
613 return (adp->obj->nid);
615 op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
618 return (nid_objs[*op].nid);
621 int OBJ_sn2nid(const char *s)
624 const ASN1_OBJECT *oo = &o;
626 const unsigned int *op;
630 ad.type = ADDED_SNAME;
632 adp = lh_ADDED_OBJ_retrieve(added, &ad);
634 return (adp->obj->nid);
636 op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
639 return (nid_objs[*op].nid);
642 const void *OBJ_bsearch_(const void *key, const void *base, int num, int size,
643 int (*cmp) (const void *, const void *))
645 return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
648 const void *OBJ_bsearch_ex_(const void *key, const void *base_, int num,
650 int (*cmp) (const void *, const void *),
653 const char *base = base_;
654 int l, h, i = 0, c = 0;
655 const char *p = NULL;
663 p = &(base[i * size]);
672 #ifdef CHARSET_EBCDIC
674 * THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and I
675 * don't have perl (yet), we revert to a *LINEAR* search when the object
676 * wasn't found in the binary search.
679 for (i = 0; i < num; ++i) {
680 p = &(base[i * size]);
682 if (c == 0 || (c < 0 && (flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)))
687 if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH))
689 else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) {
690 while (i > 0 && (*cmp) (key, &(base[(i - 1) * size])) == 0)
692 p = &(base[i * size]);
697 int OBJ_create_objects(BIO *in)
701 char *o, *s, *l = NULL;
705 i = BIO_gets(in, buf, 512);
709 if (!isalnum((unsigned char)buf[0]))
712 while (isdigit((unsigned char)*s) || (*s == '.'))
716 while (isspace((unsigned char)*s))
722 while ((*l != '\0') && !isspace((unsigned char)*l))
726 while (isspace((unsigned char)*l))
735 if ((o == NULL) || (*o == '\0'))
737 if (!OBJ_create(o, s, l))
744 int OBJ_create(const char *oid, const char *sn, const char *ln)
747 ASN1_OBJECT *op = NULL;
751 i = a2d_ASN1_OBJECT(NULL, 0, oid, -1);
755 if ((buf = OPENSSL_malloc(i)) == NULL) {
756 OBJerr(OBJ_F_OBJ_CREATE, ERR_R_MALLOC_FAILURE);
759 i = a2d_ASN1_OBJECT(buf, i, oid, -1);
762 op = (ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1), buf, i, sn, ln);
765 ok = OBJ_add_object(op);
767 ASN1_OBJECT_free(op);
772 size_t OBJ_length(const ASN1_OBJECT *obj)
779 const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj)