-/* crypto/asn1/x_x509.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.
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
- * 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.]
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <openssl/asn1t.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
+#include "internal/x509_int.h"
ASN1_SEQUENCE_enc(X509_CINF, enc, 0) = {
ASN1_EXP_OPT(X509_CINF, version, ASN1_INTEGER, 0),
- ASN1_SIMPLE(X509_CINF, serialNumber, ASN1_INTEGER),
+ ASN1_EMBED(X509_CINF, serialNumber, ASN1_INTEGER),
ASN1_EMBED(X509_CINF, signature, X509_ALGOR),
ASN1_SIMPLE(X509_CINF, issuer, X509_NAME),
ASN1_EMBED(X509_CINF, validity, X509_VAL),
switch (operation) {
case ASN1_OP_NEW_POST:
- ret->valid = 0;
- ret->name = NULL;
ret->ex_flags = 0;
ret->ex_pathlen = -1;
+ ret->ex_pcpathlen = -1;
ret->skid = NULL;
ret->akid = NULL;
#ifndef OPENSSL_NO_RFC3779
#endif
ret->aux = NULL;
ret->crldp = NULL;
- CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data);
- break;
-
- case ASN1_OP_D2I_POST:
- OPENSSL_free(ret->name);
- ret->name = X509_NAME_oneline(ret->cert_info.subject, NULL, 0);
+ if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_X509, ret, &ret->ex_data))
+ return 0;
break;
case ASN1_OP_FREE_POST:
sk_IPAddressFamily_pop_free(ret->rfc3779_addr, IPAddressFamily_free);
ASIdentifiers_free(ret->rfc3779_asid);
#endif
- OPENSSL_free(ret->name);
break;
}
}
-ASN1_SEQUENCE_ref(X509, x509_cb, CRYPTO_LOCK_X509) = {
+ASN1_SEQUENCE_ref(X509, x509_cb) = {
ASN1_EMBED(X509, cert_info, X509_CINF),
ASN1_EMBED(X509, sig_alg, X509_ALGOR),
- ASN1_SIMPLE(X509, signature, ASN1_BIT_STRING)
+ ASN1_EMBED(X509, signature, ASN1_BIT_STRING)
} ASN1_SEQUENCE_END_ref(X509, X509)
IMPLEMENT_ASN1_FUNCTIONS(X509)
IMPLEMENT_ASN1_DUP_FUNCTION(X509)
-int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
- CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
-{
- return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_X509, argl, argp,
- new_func, dup_func, free_func);
-}
-
int X509_set_ex_data(X509 *r, int idx, void *arg)
{
return (CRYPTO_set_ex_data(&r->ex_data, idx, arg));
/* Save start position */
q = *pp;
- if (!a || *a == NULL) {
+ if (a == NULL || *a == NULL)
freeret = 1;
- }
ret = d2i_X509(a, &q, length);
/* If certificate unreadable then forget it */
- if (!ret)
+ if (ret == NULL)
return NULL;
/* update length */
length -= q - *pp;
- if (!length)
- return ret;
- if (!d2i_X509_CERT_AUX(&ret->aux, &q, length))
+ if (length > 0 && !d2i_X509_CERT_AUX(&ret->aux, &q, length))
goto err;
*pp = q;
return ret;
return NULL;
}
+/*
+ * Serialize trusted certificate to *pp or just return the required buffer
+ * length if pp == NULL. We ultimately want to avoid modifying *pp in the
+ * error path, but that depends on similar hygiene in lower-level functions.
+ * Here we avoid compounding the problem.
+ */
+static int i2d_x509_aux_internal(X509 *a, unsigned char **pp)
+{
+ int length, tmplen;
+ unsigned char *start = pp != NULL ? *pp : NULL;
+
+ /*
+ * This might perturb *pp on error, but fixing that belongs in i2d_X509()
+ * not here. It should be that if a == NULL length is zero, but we check
+ * both just in case.
+ */
+ length = i2d_X509(a, pp);
+ if (length <= 0 || a == NULL)
+ return length;
+
+ tmplen = i2d_X509_CERT_AUX(a->aux, pp);
+ if (tmplen < 0) {
+ if (start != NULL)
+ *pp = start;
+ return tmplen;
+ }
+ length += tmplen;
+
+ return length;
+}
+
+/*
+ * Serialize trusted certificate to *pp, or just return the required buffer
+ * length if pp == NULL.
+ *
+ * When pp is not NULL, but *pp == NULL, we allocate the buffer, but since
+ * we're writing two ASN.1 objects back to back, we can't have i2d_X509() do
+ * the allocation, nor can we allow i2d_X509_CERT_AUX() to increment the
+ * allocated buffer.
+ */
int i2d_X509_AUX(X509 *a, unsigned char **pp)
{
int length;
- length = i2d_X509(a, pp);
- if (a)
- length += i2d_X509_CERT_AUX(a->aux, pp);
+ unsigned char *tmp;
+
+ /* Buffer provided by caller */
+ if (pp == NULL || *pp != NULL)
+ return i2d_x509_aux_internal(a, pp);
+
+ /* Obtain the combined length */
+ if ((length = i2d_x509_aux_internal(a, NULL)) <= 0)
+ return length;
+
+ /* Allocate requisite combined storage */
+ *pp = tmp = OPENSSL_malloc(length);
+ if (tmp == NULL)
+ return -1; /* Push error onto error stack? */
+
+ /* Encode, but keep *pp at the originally malloced pointer */
+ length = i2d_x509_aux_internal(a, &tmp);
+ if (length <= 0) {
+ OPENSSL_free(*pp);
+ *pp = NULL;
+ }
return length;
}
return i2d_X509_CINF(&x->cert_info, pp);
}
-void X509_get0_signature(ASN1_BIT_STRING **psig, X509_ALGOR **palg, X509 *x)
+void X509_get0_signature(const ASN1_BIT_STRING **psig,
+ const X509_ALGOR **palg, const X509 *x)
{
if (psig)
- *psig = x->signature;
+ *psig = &x->signature;
if (palg)
*palg = &x->sig_alg;
}
projects / openssl.git / blobdiff