2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
13 #include "internal/cryptlib.h"
14 #include <openssl/lhash.h>
15 #include <openssl/asn1.h>
16 #include "internal/objects.h"
17 #include <openssl/bn.h>
18 #include "internal/asn1_int.h"
21 /* obj_dat.h is generated from objects.h by obj_dat.pl */
24 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
25 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
26 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
38 static int new_nid = NUM_NID;
39 static LHASH_OF(ADDED_OBJ) *added = NULL;
41 static int sn_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
43 return (strcmp((*a)->sn, nid_objs[*b].sn));
46 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
48 static int ln_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
50 return (strcmp((*a)->ln, nid_objs[*b].ln));
53 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
55 static unsigned long added_obj_hash(const ADDED_OBJ *ca)
59 unsigned long ret = 0;
65 ret = a->length << 20L;
66 p = (unsigned char *)a->data;
67 for (i = 0; i < a->length; i++)
68 ret ^= p[i] << ((i * 3) % 24);
71 ret = OPENSSL_LH_strhash(a->sn);
74 ret = OPENSSL_LH_strhash(a->ln);
84 ret |= ((unsigned long)ca->type) << 30L;
88 static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb)
93 i = ca->type - cb->type;
100 i = (a->length - b->length);
103 return (memcmp(a->data, b->data, (size_t)a->length));
107 else if (b->sn == NULL)
110 return (strcmp(a->sn, b->sn));
114 else if (b->ln == NULL)
117 return (strcmp(a->ln, b->ln));
119 return (a->nid - b->nid);
126 static int init_added(void)
130 added = lh_ADDED_OBJ_new(added_obj_hash, added_obj_cmp);
131 return (added != NULL);
134 static void cleanup1_doall(ADDED_OBJ *a)
137 a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC |
138 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA;
141 static void cleanup2_doall(ADDED_OBJ *a)
146 static void cleanup3_doall(ADDED_OBJ *a)
148 if (--a->obj->nid == 0)
149 ASN1_OBJECT_free(a->obj);
153 void obj_cleanup_int(void)
157 lh_ADDED_OBJ_set_down_load(added, 0);
158 lh_ADDED_OBJ_doall(added, cleanup1_doall); /* zero counters */
159 lh_ADDED_OBJ_doall(added, cleanup2_doall); /* set counters */
160 lh_ADDED_OBJ_doall(added, cleanup3_doall); /* free objects */
161 lh_ADDED_OBJ_free(added);
165 int OBJ_new_nid(int num)
174 int OBJ_add_object(const ASN1_OBJECT *obj)
177 ADDED_OBJ *ao[4] = { NULL, NULL, NULL, NULL }, *aop;
183 if ((o = OBJ_dup(obj)) == NULL)
185 if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
187 if ((o->length != 0) && (obj->data != NULL))
188 if ((ao[ADDED_DATA] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
191 if ((ao[ADDED_SNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
194 if ((ao[ADDED_LNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
197 for (i = ADDED_DATA; i <= ADDED_NID; i++) {
201 aop = lh_ADDED_OBJ_insert(added, ao[i]);
202 /* memory leak, but should not normally matter */
207 ~(ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
208 ASN1_OBJECT_FLAG_DYNAMIC_DATA);
212 OBJerr(OBJ_F_OBJ_ADD_OBJECT, ERR_R_MALLOC_FAILURE);
214 for (i = ADDED_DATA; i <= ADDED_NID; i++)
220 ASN1_OBJECT *OBJ_nid2obj(int n)
225 if ((n >= 0) && (n < NUM_NID)) {
226 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
227 OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
230 return ((ASN1_OBJECT *)&(nid_objs[n]));
231 } else if (added == NULL)
237 adp = lh_ADDED_OBJ_retrieve(added, &ad);
241 OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
247 const char *OBJ_nid2sn(int n)
252 if ((n >= 0) && (n < NUM_NID)) {
253 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
254 OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
257 return (nid_objs[n].sn);
258 } else if (added == NULL)
264 adp = lh_ADDED_OBJ_retrieve(added, &ad);
266 return (adp->obj->sn);
268 OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
274 const char *OBJ_nid2ln(int n)
279 if ((n >= 0) && (n < NUM_NID)) {
280 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
281 OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
284 return (nid_objs[n].ln);
285 } else if (added == NULL)
291 adp = lh_ADDED_OBJ_retrieve(added, &ad);
293 return (adp->obj->ln);
295 OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
301 static int obj_cmp(const ASN1_OBJECT *const *ap, const unsigned int *bp)
304 const ASN1_OBJECT *a = *ap;
305 const ASN1_OBJECT *b = &nid_objs[*bp];
307 j = (a->length - b->length);
312 return (memcmp(a->data, b->data, a->length));
315 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
317 int OBJ_obj2nid(const ASN1_OBJECT *a)
319 const unsigned int *op;
331 ad.type = ADDED_DATA;
332 ad.obj = (ASN1_OBJECT *)a; /* XXX: ugly but harmless */
333 adp = lh_ADDED_OBJ_retrieve(added, &ad);
335 return (adp->obj->nid);
337 op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
340 return (nid_objs[*op].nid);
344 * Convert an object name into an ASN1_OBJECT if "noname" is not set then
345 * search for short and long names first. This will convert the "dotted" form
346 * into an object: unlike OBJ_txt2nid it can be used with any objects, not
347 * just registered ones.
350 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
353 ASN1_OBJECT *op = NULL;
356 const unsigned char *cp;
360 if (((nid = OBJ_sn2nid(s)) != NID_undef) ||
361 ((nid = OBJ_ln2nid(s)) != NID_undef))
362 return OBJ_nid2obj(nid);
365 /* Work out size of content octets */
366 i = a2d_ASN1_OBJECT(NULL, 0, s, -1);
368 /* Don't clear the error */
374 /* Work out total size */
375 j = ASN1_object_size(0, i, V_ASN1_OBJECT);
379 if ((buf = OPENSSL_malloc(j)) == NULL)
383 /* Write out tag+length */
384 ASN1_put_object(&p, 0, i, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
385 /* Write out contents */
386 a2d_ASN1_OBJECT(p, i, s, -1);
389 op = d2i_ASN1_OBJECT(NULL, &cp, j);
394 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
396 int i, n = 0, len, nid, first, use_bn;
399 const unsigned char *p;
400 char tbuf[DECIMAL_SIZE(i) + DECIMAL_SIZE(l) + 2];
402 /* Ensure that, at every state, |buf| is NUL-terminated. */
403 if (buf && buf_len > 0)
406 if ((a == NULL) || (a->data == NULL))
409 if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) {
416 OPENSSL_strlcpy(buf, s, buf_len);
432 unsigned char c = *p++;
434 if ((len == 0) && (c & 0x80))
437 if (!BN_add_word(bl, c & 0x7f))
443 if (!use_bn && (l > (ULONG_MAX >> 7L))) {
444 if (bl == NULL && (bl = BN_new()) == NULL)
446 if (!BN_set_word(bl, l))
451 if (!BN_lshift(bl, bl, 7))
462 if (!BN_sub_word(bl, 80))
470 if (buf && (buf_len > 1)) {
480 bndec = BN_bn2dec(bl);
490 OPENSSL_strlcpy(buf, bndec, buf_len);
503 BIO_snprintf(tbuf, sizeof tbuf, ".%lu", l);
505 if (buf && (buf_len > 0)) {
506 OPENSSL_strlcpy(buf, tbuf, buf_len);
528 int OBJ_txt2nid(const char *s)
532 obj = OBJ_txt2obj(s, 0);
533 nid = OBJ_obj2nid(obj);
534 ASN1_OBJECT_free(obj);
538 int OBJ_ln2nid(const char *s)
541 const ASN1_OBJECT *oo = &o;
543 const unsigned int *op;
547 ad.type = ADDED_LNAME;
549 adp = lh_ADDED_OBJ_retrieve(added, &ad);
551 return (adp->obj->nid);
553 op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
556 return (nid_objs[*op].nid);
559 int OBJ_sn2nid(const char *s)
562 const ASN1_OBJECT *oo = &o;
564 const unsigned int *op;
568 ad.type = ADDED_SNAME;
570 adp = lh_ADDED_OBJ_retrieve(added, &ad);
572 return (adp->obj->nid);
574 op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
577 return (nid_objs[*op].nid);
580 const void *OBJ_bsearch_(const void *key, const void *base, int num, int size,
581 int (*cmp) (const void *, const void *))
583 return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
586 const void *OBJ_bsearch_ex_(const void *key, const void *base_, int num,
588 int (*cmp) (const void *, const void *),
591 const char *base = base_;
592 int l, h, i = 0, c = 0;
593 const char *p = NULL;
601 p = &(base[i * size]);
610 #ifdef CHARSET_EBCDIC
612 * THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and I
613 * don't have perl (yet), we revert to a *LINEAR* search when the object
614 * wasn't found in the binary search.
617 for (i = 0; i < num; ++i) {
618 p = &(base[i * size]);
620 if (c == 0 || (c < 0 && (flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)))
625 if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH))
627 else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) {
628 while (i > 0 && (*cmp) (key, &(base[(i - 1) * size])) == 0)
630 p = &(base[i * size]);
635 int OBJ_create_objects(BIO *in)
639 char *o, *s, *l = NULL;
643 i = BIO_gets(in, buf, 512);
647 if (!isalnum((unsigned char)buf[0]))
650 while (isdigit((unsigned char)*s) || (*s == '.'))
654 while (isspace((unsigned char)*s))
660 while ((*l != '\0') && !isspace((unsigned char)*l))
664 while (isspace((unsigned char)*l))
673 if ((o == NULL) || (*o == '\0'))
675 if (!OBJ_create(o, s, l))
681 int OBJ_create(const char *oid, const char *sn, const char *ln)
683 ASN1_OBJECT *tmpoid = NULL;
686 /* Check to see if short or long name already present */
687 if (OBJ_sn2nid(sn) != NID_undef || OBJ_ln2nid(ln) != NID_undef) {
688 OBJerr(OBJ_F_OBJ_CREATE, OBJ_R_OID_EXISTS);
692 /* Convert numerical OID string to an ASN1_OBJECT structure */
693 tmpoid = OBJ_txt2obj(oid, 1);
697 /* If NID is not NID_undef then object already exists */
698 if (OBJ_obj2nid(tmpoid) != NID_undef) {
699 OBJerr(OBJ_F_OBJ_CREATE, OBJ_R_OID_EXISTS);
703 tmpoid->nid = OBJ_new_nid(1);
704 tmpoid->sn = (char *)sn;
705 tmpoid->ln = (char *)ln;
707 ok = OBJ_add_object(tmpoid);
713 ASN1_OBJECT_free(tmpoid);
717 size_t OBJ_length(const ASN1_OBJECT *obj)
724 const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj)