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 STACK
*intname
= NULL
, **intname_pp
= &intname
;
165 X509_NAME
*nm
= NULL
, **nm_pp
= &nm
;
166 STACK_OF(X509_NAME_ENTRY
) *entries
;
167 X509_NAME_ENTRY
*entry
;
170 /* Get internal representation of Name */
171 ret
= ASN1_item_ex_d2i((ASN1_VALUE
**)intname_pp
,
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((ASN1_VALUE
**)nm_pp
, NULL
)) goto err
;
179 /* We've decoded it: now cache encoding */
180 if(!BUF_MEM_grow(nm
->bytes
, p
- q
)) goto err
;
181 memcpy(nm
->bytes
->data
, q
, p
- q
);
183 /* Convert internal representation to X509_NAME structure */
184 for(i
= 0; i
< sk_num(intname
); i
++) {
185 entries
= (STACK_OF(X509_NAME_ENTRY
) *)sk_value(intname
, 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
->entries
, entry
))
192 sk_X509_NAME_ENTRY_free(entries
);
196 *val
= (ASN1_VALUE
*)nm
;
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 STACK
*intname
= NULL
, **intname_pp
= &intname
;
225 STACK_OF(X509_NAME_ENTRY
) *entries
= NULL
;
226 X509_NAME_ENTRY
*entry
;
228 intname
= sk_new_null();
229 if(!intname
) 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
, (char *)entries
)) goto memerr
;
238 if(!sk_X509_NAME_ENTRY_push(entries
, entry
)) goto memerr
;
240 len
= ASN1_item_ex_i2d((ASN1_VALUE
**)intname_pp
, 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((ASN1_VALUE
**)intname_pp
,
245 &p
, ASN1_ITEM_rptr(X509_NAME_INTERNAL
), -1, -1);
246 sk_pop_free(intname
, sk_internal_free
);
250 sk_pop_free(intname
, 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
)