+++ /dev/null
-/* 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 <ctype.h>
-#include "cryptlib.h"
-#include <openssl/asn1t.h>
-#include <openssl/x509.h>
-#include "asn1_locl.h"
-
-typedef STACK_OF(X509_NAME_ENTRY) STACK_OF_X509_NAME_ENTRY;
-DECLARE_STACK_OF(STACK_OF_X509_NAME_ENTRY)
-
-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_canon(X509_NAME *a);
-static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in);
-static int i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) * intname,
- unsigned char **in);
-
-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->canon_enc = NULL;
- ret->canon_enclen = 0;
- 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);
- if (a->canon_enc)
- OPENSSL_free(a->canon_enc);
- OPENSSL_free(a);
- *pval = NULL;
-}
-
-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;
- union {
- STACK_OF(STACK_OF_X509_NAME_ENTRY) *s;
- ASN1_VALUE *a;
- } intname = {
- NULL
- };
- union {
- X509_NAME *x;
- ASN1_VALUE *a;
- } nm = {
- NULL
- };
- int i, j, ret;
- STACK_OF(X509_NAME_ENTRY) *entries;
- X509_NAME_ENTRY *entry;
- q = p;
-
- /* Get internal representation of Name */
- ret = ASN1_item_ex_d2i(&intname.a,
- &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(&nm.a, NULL))
- goto err;
- /* We've decoded it: now cache encoding */
- if (!BUF_MEM_grow(nm.x->bytes, p - q))
- goto err;
- memcpy(nm.x->bytes->data, q, p - q);
-
- /* Convert internal representation to X509_NAME structure */
- for (i = 0; i < sk_STACK_OF_X509_NAME_ENTRY_num(intname.s); i++) {
- entries = sk_STACK_OF_X509_NAME_ENTRY_value(intname.s, 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.x->entries, entry))
- goto err;
- }
- sk_X509_NAME_ENTRY_free(entries);
- }
- sk_STACK_OF_X509_NAME_ENTRY_free(intname.s);
- ret = x509_name_canon(nm.x);
- if (!ret)
- goto err;
- nm.x->modified = 0;
- *val = nm.a;
- *in = p;
- return ret;
- err:
- if (nm.x != NULL)
- X509_NAME_free(nm.x);
- 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(a);
- if (ret < 0)
- return ret;
- ret = x509_name_canon(a);
- if (ret < 0)
- return ret;
- }
- ret = a->bytes->length;
- if (out != NULL) {
- memcpy(*out, a->bytes->data, ret);
- *out += ret;
- }
- return ret;
-}
-
-static void local_sk_X509_NAME_ENTRY_free(STACK_OF(X509_NAME_ENTRY) *ne)
-{
- sk_X509_NAME_ENTRY_free(ne);
-}
-
-static void local_sk_X509_NAME_ENTRY_pop_free(STACK_OF(X509_NAME_ENTRY) *ne)
-{
- sk_X509_NAME_ENTRY_pop_free(ne, X509_NAME_ENTRY_free);
-}
-
-static int x509_name_encode(X509_NAME *a)
-{
- union {
- STACK_OF(STACK_OF_X509_NAME_ENTRY) *s;
- ASN1_VALUE *a;
- } intname = {
- NULL
- };
- int len;
- unsigned char *p;
- STACK_OF(X509_NAME_ENTRY) *entries = NULL;
- X509_NAME_ENTRY *entry;
- int i, set = -1;
- intname.s = sk_STACK_OF_X509_NAME_ENTRY_new_null();
- if (!intname.s)
- 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_STACK_OF_X509_NAME_ENTRY_push(intname.s, entries))
- goto memerr;
- set = entry->set;
- }
- if (!sk_X509_NAME_ENTRY_push(entries, entry))
- goto memerr;
- }
- len = ASN1_item_ex_i2d(&intname.a, 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(&intname.a,
- &p, ASN1_ITEM_rptr(X509_NAME_INTERNAL), -1, -1);
- sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname.s,
- local_sk_X509_NAME_ENTRY_free);
- a->modified = 0;
- return len;
- memerr:
- sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname.s,
- local_sk_X509_NAME_ENTRY_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;
-}
-
-/*
- * This function generates the canonical encoding of the Name structure. In
- * it all strings are converted to UTF8, leading, trailing and multiple
- * spaces collapsed, converted to lower case and the leading SEQUENCE header
- * removed. In future we could also normalize the UTF8 too. By doing this
- * comparison of Name structures can be rapidly perfomed by just using
- * memcmp() of the canonical encoding. By omitting the leading SEQUENCE name
- * constraints of type dirName can also be checked with a simple memcmp().
- */
-
-static int x509_name_canon(X509_NAME *a)
-{
- unsigned char *p;
- STACK_OF(STACK_OF_X509_NAME_ENTRY) *intname = NULL;
- STACK_OF(X509_NAME_ENTRY) *entries = NULL;
- X509_NAME_ENTRY *entry, *tmpentry = NULL;
- int i, set = -1, ret = 0;
-
- if (a->canon_enc) {
- OPENSSL_free(a->canon_enc);
- a->canon_enc = NULL;
- }
- /* Special case: empty X509_NAME => null encoding */
- if (sk_X509_NAME_ENTRY_num(a->entries) == 0) {
- a->canon_enclen = 0;
- return 1;
- }
- intname = sk_STACK_OF_X509_NAME_ENTRY_new_null();
- if (!intname)
- goto err;
- 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 err;
- if (!sk_STACK_OF_X509_NAME_ENTRY_push(intname, entries))
- goto err;
- set = entry->set;
- }
- tmpentry = X509_NAME_ENTRY_new();
- if (!tmpentry)
- goto err;
- tmpentry->object = OBJ_dup(entry->object);
- if (!asn1_string_canon(tmpentry->value, entry->value))
- goto err;
- if (!sk_X509_NAME_ENTRY_push(entries, tmpentry))
- goto err;
- tmpentry = NULL;
- }
-
- /* Finally generate encoding */
-
- a->canon_enclen = i2d_name_canon(intname, NULL);
-
- p = OPENSSL_malloc(a->canon_enclen);
-
- if (!p)
- goto err;
-
- a->canon_enc = p;
-
- i2d_name_canon(intname, &p);
-
- ret = 1;
-
- err:
-
- if (tmpentry)
- X509_NAME_ENTRY_free(tmpentry);
- if (intname)
- sk_STACK_OF_X509_NAME_ENTRY_pop_free(intname,
- local_sk_X509_NAME_ENTRY_pop_free);
- return ret;
-}
-
-/* Bitmap of all the types of string that will be canonicalized. */
-
-#define ASN1_MASK_CANON \
- (B_ASN1_UTF8STRING | B_ASN1_BMPSTRING | B_ASN1_UNIVERSALSTRING \
- | B_ASN1_PRINTABLESTRING | B_ASN1_T61STRING | B_ASN1_IA5STRING \
- | B_ASN1_VISIBLESTRING)
-
-static int asn1_string_canon(ASN1_STRING *out, ASN1_STRING *in)
-{
- unsigned char *to, *from;
- int len, i;
-
- /* If type not in bitmask just copy string across */
- if (!(ASN1_tag2bit(in->type) & ASN1_MASK_CANON)) {
- if (!ASN1_STRING_copy(out, in))
- return 0;
- return 1;
- }
-
- out->type = V_ASN1_UTF8STRING;
- out->length = ASN1_STRING_to_UTF8(&out->data, in);
- if (out->length == -1)
- return 0;
-
- to = out->data;
- from = to;
-
- len = out->length;
-
- /*
- * Convert string in place to canonical form. Ultimately we may need to
- * handle a wider range of characters but for now ignore anything with
- * MSB set and rely on the isspace() and tolower() functions.
- */
-
- /* Ignore leading spaces */
- while ((len > 0) && !(*from & 0x80) && isspace(*from)) {
- from++;
- len--;
- }
-
- to = from + len - 1;
-
- /* Ignore trailing spaces */
- while ((len > 0) && !(*to & 0x80) && isspace(*to)) {
- to--;
- len--;
- }
-
- to = out->data;
-
- i = 0;
- while (i < len) {
- /* If MSB set just copy across */
- if (*from & 0x80) {
- *to++ = *from++;
- i++;
- }
- /* Collapse multiple spaces */
- else if (isspace(*from)) {
- /* Copy one space across */
- *to++ = ' ';
- /*
- * Ignore subsequent spaces. Note: don't need to check len here
- * because we know the last character is a non-space so we can't
- * overflow.
- */
- do {
- from++;
- i++;
- }
- while (!(*from & 0x80) && isspace(*from));
- } else {
- *to++ = tolower(*from);
- from++;
- i++;
- }
- }
-
- out->length = to - out->data;
-
- return 1;
-
-}
-
-static int i2d_name_canon(STACK_OF(STACK_OF_X509_NAME_ENTRY) * _intname,
- unsigned char **in)
-{
- int i, len, ltmp;
- ASN1_VALUE *v;
- STACK_OF(ASN1_VALUE) *intname = (STACK_OF(ASN1_VALUE) *)_intname;
-
- len = 0;
- for (i = 0; i < sk_ASN1_VALUE_num(intname); i++) {
- v = sk_ASN1_VALUE_value(intname, i);
- ltmp = ASN1_item_ex_i2d(&v, in,
- ASN1_ITEM_rptr(X509_NAME_ENTRIES), -1, -1);
- if (ltmp < 0)
- return ltmp;
- len += ltmp;
- }
- return len;
-}
-
-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);
-}
projects / openssl.git / blobdiff