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, unsigned char **in, long len, const ASN1_ITEM *it,
65 int tag, int aclass, char opt, ASN1_TLC *ctx);
67 static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass);
68 static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it);
69 static void x509_name_ex_free(ASN1_VALUE **val, const ASN1_ITEM *it);
71 static int x509_name_encode(X509_NAME *a);
73 ASN1_SEQUENCE(X509_NAME_ENTRY) = {
74 ASN1_SIMPLE(X509_NAME_ENTRY, object, ASN1_OBJECT),
75 ASN1_SIMPLE(X509_NAME_ENTRY, value, ASN1_PRINTABLE)
76 } ASN1_SEQUENCE_END(X509_NAME_ENTRY)
78 IMPLEMENT_ASN1_FUNCTIONS(X509_NAME_ENTRY)
80 /* For the "Name" type we need a SEQUENCE OF { SET OF X509_NAME_ENTRY }
81 * so declare two template wrappers for this
84 ASN1_ITEM_TEMPLATE(X509_NAME_ENTRIES) =
85 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY)
86 ASN1_ITEM_TEMPLATE_END(X509_NAME_ENTRIES)
88 ASN1_ITEM_TEMPLATE(X509_NAME_INTERNAL) =
89 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES)
90 ASN1_ITEM_TEMPLATE_END(X509_NAME_INTERNAL)
92 /* Normally that's where it would end: we'd have two nested STACK structures
93 * representing the ASN1. Unfortunately X509_NAME uses a completely different
94 * form and caches encodings so we have to process the internal form and convert
95 * to the external form.
98 const ASN1_EXTERN_FUNCS x509_name_ff = {
102 0, /* Default clear behaviour is OK */
107 IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff)
109 IMPLEMENT_ASN1_FUNCTIONS(X509_NAME)
111 static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it)
113 X509_NAME *ret = NULL;
114 ret = OPENSSL_malloc(sizeof(X509_NAME));
115 if(!ret) goto memerr;
116 if ((ret->entries=sk_X509_NAME_ENTRY_new_null()) == NULL)
118 if((ret->bytes = BUF_MEM_new()) == NULL) goto memerr;
120 *val = (ASN1_VALUE *)ret;
123 ASN1err(ASN1_F_X509_NAME_NEW, ERR_R_MALLOC_FAILURE);
127 static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
132 a = (X509_NAME *)*pval;
134 BUF_MEM_free(a->bytes);
135 sk_X509_NAME_ENTRY_pop_free(a->entries,X509_NAME_ENTRY_free);
140 /* Used with sk_pop_free() to free up the internal representation.
141 * NB: we only free the STACK and not its contents because it is
142 * already present in the X509_NAME structure.
145 static void sk_internal_free(void *a)
150 static int x509_name_ex_d2i(ASN1_VALUE **val, unsigned char **in, long len, const ASN1_ITEM *it,
151 int tag, int aclass, char opt, ASN1_TLC *ctx)
153 unsigned char *p = *in, *q;
154 STACK *intname = NULL;
156 X509_NAME *nm = NULL;
157 STACK_OF(X509_NAME_ENTRY) *entries;
158 X509_NAME_ENTRY *entry;
161 /* Get internal representation of Name */
162 ret = ASN1_item_ex_d2i((ASN1_VALUE **)&intname, &p, len, ASN1_ITEM_rptr(X509_NAME_INTERNAL),
163 tag, aclass, opt, ctx);
165 if(ret <= 0) return ret;
167 if(*val) x509_name_ex_free(val, NULL);
168 if(!x509_name_ex_new((ASN1_VALUE **)&nm, NULL)) goto err;
169 /* We've decoded it: now cache encoding */
170 if(!BUF_MEM_grow(nm->bytes, p - q)) goto err;
171 memcpy(nm->bytes->data, q, p - q);
173 /* Convert internal representation to X509_NAME structure */
174 for(i = 0; i < sk_num(intname); i++) {
175 entries = (STACK_OF(X509_NAME_ENTRY) *)sk_value(intname, i);
176 for(j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) {
177 entry = sk_X509_NAME_ENTRY_value(entries, j);
179 if(!sk_X509_NAME_ENTRY_push(nm->entries, entry))
182 sk_X509_NAME_ENTRY_free(entries);
186 *val = (ASN1_VALUE *)nm;
190 ASN1err(ASN1_F_D2I_X509_NAME, ERR_R_NESTED_ASN1_ERROR);
194 static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass)
197 X509_NAME *a = (X509_NAME *)*val;
199 ret = x509_name_encode((X509_NAME *)a);
200 if(ret < 0) return ret;
202 ret = a->bytes->length;
204 memcpy(*out,a->bytes->data,ret);
210 static int x509_name_encode(X509_NAME *a)
212 STACK *intname = NULL;
215 STACK_OF(X509_NAME_ENTRY) *entries = NULL;
216 X509_NAME_ENTRY *entry;
218 intname = sk_new_null();
219 if(!intname) goto memerr;
220 for(i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
221 entry = sk_X509_NAME_ENTRY_value(a->entries, i);
222 if(entry->set != set) {
223 entries = sk_X509_NAME_ENTRY_new_null();
224 if(!entries) goto memerr;
225 if(!sk_push(intname, (char *)entries)) goto memerr;
228 if(!sk_X509_NAME_ENTRY_push(entries, entry)) goto memerr;
230 len = ASN1_item_ex_i2d((ASN1_VALUE **)&intname, NULL, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
231 if (!BUF_MEM_grow(a->bytes,len)) goto memerr;
232 p=(unsigned char *)a->bytes->data;
233 ASN1_item_ex_i2d((ASN1_VALUE **)&intname, &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
234 sk_pop_free(intname, sk_internal_free);
238 sk_pop_free(intname, sk_internal_free);
239 ASN1err(ASN1_F_D2I_X509_NAME, ERR_R_MALLOC_FAILURE);
244 int X509_NAME_set(X509_NAME **xn, X509_NAME *name)
248 if (!xn || !name) return(0);
252 in=X509_NAME_dup(name);
262 IMPLEMENT_STACK_OF(X509_NAME_ENTRY)
263 IMPLEMENT_ASN1_SET_OF(X509_NAME_ENTRY)