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, 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)
79
IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME_ENTRY)
81
/* For the "Name" type we need a SEQUENCE OF { SET OF X509_NAME_ENTRY }
82
* so declare two template wrappers for this
85
ASN1_ITEM_TEMPLATE(X509_NAME_ENTRIES) =
86
ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY)
87
ASN1_ITEM_TEMPLATE_END(X509_NAME_ENTRIES)
89
ASN1_ITEM_TEMPLATE(X509_NAME_INTERNAL) =
90
ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES)
91
ASN1_ITEM_TEMPLATE_END(X509_NAME_INTERNAL)
93
/* Normally that's where it would end: we'd have two nested STACK structures
94
* representing the ASN1. Unfortunately X509_NAME uses a completely different
95
* form and caches encodings so we have to process the internal form and convert
96
* to the external form.
99
const ASN1_EXTERN_FUNCS x509_name_ff = {
103
0, /* Default clear behaviour is OK */
108
IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff)
110
IMPLEMENT_ASN1_FUNCTIONS(X509_NAME)
111
IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME)
113
static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it)
115
X509_NAME *ret = NULL;
116
ret = OPENSSL_malloc(sizeof(X509_NAME));
117
if(!ret) goto memerr;
118
if ((ret->entries=sk_X509_NAME_ENTRY_new_null()) == NULL)
120
if((ret->bytes = BUF_MEM_new()) == NULL) goto memerr;
122
*val = (ASN1_VALUE *)ret;
126
ASN1err(ASN1_F_X509_NAME_EX_NEW, ERR_R_MALLOC_FAILURE);
130
sk_X509_NAME_ENTRY_free(ret->entries);
136
static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
141
a = (X509_NAME *)*pval;
143
BUF_MEM_free(a->bytes);
144
sk_X509_NAME_ENTRY_pop_free(a->entries,X509_NAME_ENTRY_free);
149
/* Used with sk_pop_free() to free up the internal representation.
150
* NB: we only free the STACK and not its contents because it is
151
* already present in the X509_NAME structure.
154
static void sk_internal_free(void *a)
159
static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, const ASN1_ITEM *it,
160
int tag, int aclass, char opt, ASN1_TLC *ctx)
162
const unsigned char *p = *in, *q;
163
union { STACK *s; ASN1_VALUE *a; } intname = {NULL};
164
union { X509_NAME *x; ASN1_VALUE *a; } nm = {NULL};
166
STACK_OF(X509_NAME_ENTRY) *entries;
167
X509_NAME_ENTRY *entry;
170
/* Get internal representation of Name */
171
ret = ASN1_item_ex_d2i(&intname.a,
172
&p, len, ASN1_ITEM_rptr(X509_NAME_INTERNAL),
173
tag, aclass, opt, ctx);
175
if(ret <= 0) return ret;
177
if(*val) x509_name_ex_free(val, NULL);
178
if(!x509_name_ex_new(&nm.a, NULL)) goto err;
179
/* We've decoded it: now cache encoding */
180
if(!BUF_MEM_grow(nm.x->bytes, p - q)) goto err;
181
memcpy(nm.x->bytes->data, q, p - q);
183
/* Convert internal representation to X509_NAME structure */
184
for(i = 0; i < sk_num(intname.s); i++) {
185
entries = (STACK_OF(X509_NAME_ENTRY) *)sk_value(intname.s, i);
186
for(j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) {
187
entry = sk_X509_NAME_ENTRY_value(entries, j);
189
if(!sk_X509_NAME_ENTRY_push(nm.x->entries, entry))
192
sk_X509_NAME_ENTRY_free(entries);
200
ASN1err(ASN1_F_X509_NAME_EX_D2I, ERR_R_NESTED_ASN1_ERROR);
204
static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass)
207
X509_NAME *a = (X509_NAME *)*val;
209
ret = x509_name_encode((X509_NAME *)a);
210
if(ret < 0) return ret;
212
ret = a->bytes->length;
214
memcpy(*out,a->bytes->data,ret);
220
static int x509_name_encode(X509_NAME *a)
222
union { STACK *s; ASN1_VALUE *a; } intname = {NULL};
225
STACK_OF(X509_NAME_ENTRY) *entries = NULL;
226
X509_NAME_ENTRY *entry;
228
intname.s = sk_new_null();
229
if(!intname.s) goto memerr;
230
for(i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
231
entry = sk_X509_NAME_ENTRY_value(a->entries, i);
232
if(entry->set != set) {
233
entries = sk_X509_NAME_ENTRY_new_null();
234
if(!entries) goto memerr;
235
if(!sk_push(intname.s, (char *)entries)) goto memerr;
238
if(!sk_X509_NAME_ENTRY_push(entries, entry)) goto memerr;
240
len = ASN1_item_ex_i2d(&intname.a, NULL,
241
ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
242
if (!BUF_MEM_grow(a->bytes,len)) goto memerr;
243
p=(unsigned char *)a->bytes->data;
244
ASN1_item_ex_i2d(&intname.a,
245
&p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
246
sk_pop_free(intname.s, sk_internal_free);
250
sk_pop_free(intname.s, sk_internal_free);
251
ASN1err(ASN1_F_X509_NAME_ENCODE, ERR_R_MALLOC_FAILURE);
256
int X509_NAME_set(X509_NAME **xn, X509_NAME *name)
260
if (!xn || !name) return(0);
264
in=X509_NAME_dup(name);
274
IMPLEMENT_STACK_OF(X509_NAME_ENTRY)
275
IMPLEMENT_ASN1_SET_OF(X509_NAME_ENTRY)