1 /* crypto/asn1/x_name.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
61 #include <openssl/asn1t.h>
62 #include <openssl/x509.h>
64 static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in,
65 long len, const ASN1_ITEM *it, int tag,
66 int aclass, char opt, ASN1_TLC *ctx);
68 static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out,
69 const ASN1_ITEM *it, int tag, int aclass);
70 static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it);
71 static void x509_name_ex_free(ASN1_VALUE **val, const ASN1_ITEM *it);
73 static int x509_name_encode(X509_NAME *a);
75 ASN1_SEQUENCE(X509_NAME_ENTRY) = {
76 ASN1_SIMPLE(X509_NAME_ENTRY, object, ASN1_OBJECT),
77 ASN1_SIMPLE(X509_NAME_ENTRY, value, ASN1_PRINTABLE)
78 } ASN1_SEQUENCE_END(X509_NAME_ENTRY)
80 IMPLEMENT_ASN1_FUNCTIONS(X509_NAME_ENTRY)
81 IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME_ENTRY)
84 * For the "Name" type we need a SEQUENCE OF { SET OF X509_NAME_ENTRY } so
85 * declare two template wrappers for this
88 ASN1_ITEM_TEMPLATE(X509_NAME_ENTRIES) =
89 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY)
90 ASN1_ITEM_TEMPLATE_END(X509_NAME_ENTRIES)
92 ASN1_ITEM_TEMPLATE(X509_NAME_INTERNAL) =
93 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES)
94 ASN1_ITEM_TEMPLATE_END(X509_NAME_INTERNAL)
97 * Normally that's where it would end: we'd have two nested STACK structures
98 * representing the ASN1. Unfortunately X509_NAME uses a completely different
99 * form and caches encodings so we have to process the internal form and
100 * convert to the external form.
103 const ASN1_EXTERN_FUNCS x509_name_ff = {
107 0, /* Default clear behaviour is OK */
112 IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff)
114 IMPLEMENT_ASN1_FUNCTIONS(X509_NAME)
116 IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME)
118 static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it)
120 X509_NAME *ret = NULL;
121 ret = OPENSSL_malloc(sizeof(X509_NAME));
124 if ((ret->entries = sk_X509_NAME_ENTRY_new_null()) == NULL)
126 if ((ret->bytes = BUF_MEM_new()) == NULL)
129 *val = (ASN1_VALUE *)ret;
133 ASN1err(ASN1_F_X509_NAME_EX_NEW, ERR_R_MALLOC_FAILURE);
136 sk_X509_NAME_ENTRY_free(ret->entries);
142 static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
147 a = (X509_NAME *)*pval;
149 BUF_MEM_free(a->bytes);
150 sk_X509_NAME_ENTRY_pop_free(a->entries, X509_NAME_ENTRY_free);
156 * Used with sk_pop_free() to free up the internal representation. NB: we
157 * only free the STACK and not its contents because it is already present in
158 * the X509_NAME structure.
161 static void sk_internal_free(void *a)
166 static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in,
167 long len, const ASN1_ITEM *it, int tag,
168 int aclass, char opt, ASN1_TLC *ctx)
170 const unsigned char *p = *in, *q;
184 STACK_OF(X509_NAME_ENTRY) *entries;
185 X509_NAME_ENTRY *entry;
188 /* Get internal representation of Name */
189 ret = ASN1_item_ex_d2i(&intname.a,
190 &p, len, ASN1_ITEM_rptr(X509_NAME_INTERNAL),
191 tag, aclass, opt, ctx);
197 x509_name_ex_free(val, NULL);
198 if (!x509_name_ex_new(&nm.a, NULL))
200 /* We've decoded it: now cache encoding */
201 if (!BUF_MEM_grow(nm.x->bytes, p - q))
203 memcpy(nm.x->bytes->data, q, p - q);
205 /* Convert internal representation to X509_NAME structure */
206 for (i = 0; i < sk_num(intname.s); i++) {
207 entries = (STACK_OF(X509_NAME_ENTRY) *)sk_value(intname.s, i);
208 for (j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) {
209 entry = sk_X509_NAME_ENTRY_value(entries, j);
211 if (!sk_X509_NAME_ENTRY_push(nm.x->entries, entry))
214 sk_X509_NAME_ENTRY_free(entries);
223 X509_NAME_free(nm.x);
224 ASN1err(ASN1_F_X509_NAME_EX_D2I, ERR_R_NESTED_ASN1_ERROR);
228 static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out,
229 const ASN1_ITEM *it, int tag, int aclass)
232 X509_NAME *a = (X509_NAME *)*val;
234 ret = x509_name_encode((X509_NAME *)a);
238 ret = a->bytes->length;
240 memcpy(*out, a->bytes->data, ret);
246 static int x509_name_encode(X509_NAME *a)
256 STACK_OF(X509_NAME_ENTRY) *entries = NULL;
257 X509_NAME_ENTRY *entry;
259 intname.s = sk_new_null();
262 for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
263 entry = sk_X509_NAME_ENTRY_value(a->entries, i);
264 if (entry->set != set) {
265 entries = sk_X509_NAME_ENTRY_new_null();
268 if (!sk_push(intname.s, (char *)entries))
272 if (!sk_X509_NAME_ENTRY_push(entries, entry))
275 len = ASN1_item_ex_i2d(&intname.a, NULL,
276 ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
277 if (!BUF_MEM_grow(a->bytes, len))
279 p = (unsigned char *)a->bytes->data;
280 ASN1_item_ex_i2d(&intname.a,
281 &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
282 sk_pop_free(intname.s, sk_internal_free);
286 sk_pop_free(intname.s, sk_internal_free);
287 ASN1err(ASN1_F_X509_NAME_ENCODE, ERR_R_MALLOC_FAILURE);
291 int X509_NAME_set(X509_NAME **xn, X509_NAME *name)
299 in = X509_NAME_dup(name);
305 return (*xn != NULL);
308 IMPLEMENT_STACK_OF(X509_NAME_ENTRY)
310 IMPLEMENT_ASN1_SET_OF(X509_NAME_ENTRY)