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- /* crypto/asn1/x_name.c */
- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- #include <stdio.h>
- #include "cryptlib.h"
- #include <openssl/asn1t.h>
- #include <openssl/x509.h>
- #include "asn1_locl.h"
- static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, const ASN1_ITEM *it,
- int tag, int aclass, char opt, ASN1_TLC *ctx);
- static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass);
- static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it);
- static void x509_name_ex_free(ASN1_VALUE **val, const ASN1_ITEM *it);
- static int x509_name_encode(X509_NAME *a);
- static int x509_name_ex_print(BIO *out, ASN1_VALUE **pval,
- int indent,
- const char *fname,
- const ASN1_PCTX *pctx);
- ASN1_SEQUENCE(X509_NAME_ENTRY) = {
- ASN1_SIMPLE(X509_NAME_ENTRY, object, ASN1_OBJECT),
- ASN1_SIMPLE(X509_NAME_ENTRY, value, ASN1_PRINTABLE)
- } ASN1_SEQUENCE_END(X509_NAME_ENTRY)
- IMPLEMENT_ASN1_FUNCTIONS(X509_NAME_ENTRY)
- IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME_ENTRY)
- /* For the "Name" type we need a SEQUENCE OF { SET OF X509_NAME_ENTRY }
- * so declare two template wrappers for this
- */
- ASN1_ITEM_TEMPLATE(X509_NAME_ENTRIES) =
- ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_OF, 0, RDNS, X509_NAME_ENTRY)
- ASN1_ITEM_TEMPLATE_END(X509_NAME_ENTRIES)
- ASN1_ITEM_TEMPLATE(X509_NAME_INTERNAL) =
- ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, Name, X509_NAME_ENTRIES)
- ASN1_ITEM_TEMPLATE_END(X509_NAME_INTERNAL)
- /* Normally that's where it would end: we'd have two nested STACK structures
- * representing the ASN1. Unfortunately X509_NAME uses a completely different
- * form and caches encodings so we have to process the internal form and convert
- * to the external form.
- */
- const ASN1_EXTERN_FUNCS x509_name_ff = {
- NULL,
- x509_name_ex_new,
- x509_name_ex_free,
- 0, /* Default clear behaviour is OK */
- x509_name_ex_d2i,
- x509_name_ex_i2d,
- x509_name_ex_print
- };
- IMPLEMENT_EXTERN_ASN1(X509_NAME, V_ASN1_SEQUENCE, x509_name_ff)
- IMPLEMENT_ASN1_FUNCTIONS(X509_NAME)
- IMPLEMENT_ASN1_DUP_FUNCTION(X509_NAME)
- static int x509_name_ex_new(ASN1_VALUE **val, const ASN1_ITEM *it)
- {
- X509_NAME *ret = NULL;
- ret = OPENSSL_malloc(sizeof(X509_NAME));
- if(!ret) goto memerr;
- if ((ret->entries=sk_X509_NAME_ENTRY_new_null()) == NULL)
- goto memerr;
- if((ret->bytes = BUF_MEM_new()) == NULL) goto memerr;
- ret->modified=1;
- *val = (ASN1_VALUE *)ret;
- return 1;
- memerr:
- ASN1err(ASN1_F_X509_NAME_EX_NEW, ERR_R_MALLOC_FAILURE);
- if (ret)
- {
- if (ret->entries)
- sk_X509_NAME_ENTRY_free(ret->entries);
- OPENSSL_free(ret);
- }
- return 0;
- }
- static void x509_name_ex_free(ASN1_VALUE **pval, const ASN1_ITEM *it)
- {
- X509_NAME *a;
- if(!pval || !*pval)
- return;
- a = (X509_NAME *)*pval;
- BUF_MEM_free(a->bytes);
- sk_X509_NAME_ENTRY_pop_free(a->entries,X509_NAME_ENTRY_free);
- OPENSSL_free(a);
- *pval = NULL;
- }
- /* Used with sk_pop_free() to free up the internal representation.
- * NB: we only free the STACK and not its contents because it is
- * already present in the X509_NAME structure.
- */
- static void sk_internal_free(void *a)
- {
- sk_free(a);
- }
- static int x509_name_ex_d2i(ASN1_VALUE **val, const unsigned char **in, long len, const ASN1_ITEM *it,
- int tag, int aclass, char opt, ASN1_TLC *ctx)
- {
- const unsigned char *p = *in, *q;
- STACK *intname = NULL, **intname_pp = &intname;
- int i, j, ret;
- X509_NAME *nm = NULL, **nm_pp = &nm;
- STACK_OF(X509_NAME_ENTRY) *entries;
- X509_NAME_ENTRY *entry;
- q = p;
- /* Get internal representation of Name */
- ret = ASN1_item_ex_d2i((ASN1_VALUE **)intname_pp,
- &p, len, ASN1_ITEM_rptr(X509_NAME_INTERNAL),
- tag, aclass, opt, ctx);
-
- if(ret <= 0) return ret;
- if(*val) x509_name_ex_free(val, NULL);
- if(!x509_name_ex_new((ASN1_VALUE **)nm_pp, NULL)) goto err;
- /* We've decoded it: now cache encoding */
- if(!BUF_MEM_grow(nm->bytes, p - q)) goto err;
- memcpy(nm->bytes->data, q, p - q);
- /* Convert internal representation to X509_NAME structure */
- for(i = 0; i < sk_num(intname); i++) {
- entries = (STACK_OF(X509_NAME_ENTRY) *)sk_value(intname, i);
- for(j = 0; j < sk_X509_NAME_ENTRY_num(entries); j++) {
- entry = sk_X509_NAME_ENTRY_value(entries, j);
- entry->set = i;
- if(!sk_X509_NAME_ENTRY_push(nm->entries, entry))
- goto err;
- }
- sk_X509_NAME_ENTRY_free(entries);
- }
- sk_free(intname);
- nm->modified = 0;
- *val = (ASN1_VALUE *)nm;
- *in = p;
- return ret;
- err:
- ASN1err(ASN1_F_X509_NAME_EX_D2I, ERR_R_NESTED_ASN1_ERROR);
- return 0;
- }
- static int x509_name_ex_i2d(ASN1_VALUE **val, unsigned char **out, const ASN1_ITEM *it, int tag, int aclass)
- {
- int ret;
- X509_NAME *a = (X509_NAME *)*val;
- if(a->modified) {
- ret = x509_name_encode((X509_NAME *)a);
- if(ret < 0) return ret;
- }
- ret = a->bytes->length;
- if(out != NULL) {
- memcpy(*out,a->bytes->data,ret);
- *out+=ret;
- }
- return ret;
- }
- static int x509_name_encode(X509_NAME *a)
- {
- STACK *intname = NULL, **intname_pp = &intname;
- int len;
- unsigned char *p;
- STACK_OF(X509_NAME_ENTRY) *entries = NULL;
- X509_NAME_ENTRY *entry;
- int i, set = -1;
- intname = sk_new_null();
- if(!intname) goto memerr;
- for(i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
- entry = sk_X509_NAME_ENTRY_value(a->entries, i);
- if(entry->set != set) {
- entries = sk_X509_NAME_ENTRY_new_null();
- if(!entries) goto memerr;
- if(!sk_push(intname, (char *)entries)) goto memerr;
- set = entry->set;
- }
- if(!sk_X509_NAME_ENTRY_push(entries, entry)) goto memerr;
- }
- len = ASN1_item_ex_i2d((ASN1_VALUE **)intname_pp, NULL,
- ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
- if (!BUF_MEM_grow(a->bytes,len)) goto memerr;
- p=(unsigned char *)a->bytes->data;
- ASN1_item_ex_i2d((ASN1_VALUE **)intname_pp,
- &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
- sk_pop_free(intname, sk_internal_free);
- a->modified = 0;
- return len;
- memerr:
- sk_pop_free(intname, sk_internal_free);
- ASN1err(ASN1_F_X509_NAME_ENCODE, ERR_R_MALLOC_FAILURE);
- return -1;
- }
- static int x509_name_ex_print(BIO *out, ASN1_VALUE **pval,
- int indent,
- const char *fname,
- const ASN1_PCTX *pctx)
- {
- if (X509_NAME_print_ex(out, (X509_NAME *)*pval,
- indent, pctx->nm_flags) <= 0)
- return 0;
- return 2;
- }
- int X509_NAME_set(X509_NAME **xn, X509_NAME *name)
- {
- X509_NAME *in;
- if (!xn || !name) return(0);
- if (*xn != name)
- {
- in=X509_NAME_dup(name);
- if (in != NULL)
- {
- X509_NAME_free(*xn);
- *xn=in;
- }
- }
- return(*xn != NULL);
- }
-
- IMPLEMENT_STACK_OF(X509_NAME_ENTRY)
- IMPLEMENT_ASN1_SET_OF(X509_NAME_ENTRY)
|