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torque
2023-09-03 18:24:16 -07:00
parent fbb21ed921
commit b31c897352
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crypto/ts/ts_verify_ctx.c Normal file
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/* $OpenBSD: ts_verify_ctx.c,v 1.14 2023/07/07 07:25:21 beck Exp $ */
/* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
* project 2003.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <string.h>
#include <openssl/err.h>
#include <openssl/objects.h>
#include <openssl/ts.h>
#include "ts_local.h"
TS_VERIFY_CTX *
TS_VERIFY_CTX_new(void)
{
TS_VERIFY_CTX *ctx = calloc(1, sizeof(TS_VERIFY_CTX));
if (!ctx)
TSerror(ERR_R_MALLOC_FAILURE);
return ctx;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_new);
void
TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
{
if (!ctx)
return;
TS_VERIFY_CTX_cleanup(ctx);
free(ctx);
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_free);
void
TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
{
if (!ctx)
return;
X509_STORE_free(ctx->store);
sk_X509_pop_free(ctx->certs, X509_free);
ASN1_OBJECT_free(ctx->policy);
X509_ALGOR_free(ctx->md_alg);
free(ctx->imprint);
BIO_free_all(ctx->data);
ASN1_INTEGER_free(ctx->nonce);
GENERAL_NAME_free(ctx->tsa_name);
memset(ctx, 0, sizeof(*ctx));
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_cleanup);
/*
* XXX: The following accessors demonstrate the amount of care and thought that
* went into OpenSSL 1.1 API design and the review thereof: for whatever reason
* these functions return what was passed in. Correct memory management is left
* as an exercise for the reader... Unfortunately, careful consumers like
* openssl-ruby assume this behavior, so we're stuck with this insanity. The
* cherry on top is the TS_VERIFY_CTS_set_certs() [sic!] function that made it
* into the public API.
*
* Outstanding job, R$ and tjh, A+.
*/
int
TS_VERIFY_CTX_add_flags(TS_VERIFY_CTX *ctx, int flags)
{
ctx->flags |= flags;
return ctx->flags;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_add_flags);
int
TS_VERIFY_CTX_set_flags(TS_VERIFY_CTX *ctx, int flags)
{
ctx->flags = flags;
return ctx->flags;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_set_flags);
BIO *
TS_VERIFY_CTX_set_data(TS_VERIFY_CTX *ctx, BIO *bio)
{
ctx->data = bio;
return ctx->data;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_set_data);
X509_STORE *
TS_VERIFY_CTX_set_store(TS_VERIFY_CTX *ctx, X509_STORE *store)
{
ctx->store = store;
return ctx->store;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_set_store);
STACK_OF(X509) *
TS_VERIFY_CTX_set_certs(TS_VERIFY_CTX *ctx, STACK_OF(X509) *certs)
{
ctx->certs = certs;
return ctx->certs;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_set_certs);
unsigned char *
TS_VERIFY_CTX_set_imprint(TS_VERIFY_CTX *ctx, unsigned char *imprint,
long imprint_len)
{
free(ctx->imprint);
ctx->imprint = imprint;
ctx->imprint_len = imprint_len;
return ctx->imprint;
}
LCRYPTO_ALIAS(TS_VERIFY_CTX_set_imprint);
TS_VERIFY_CTX *
TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
{
TS_VERIFY_CTX *ret = ctx;
ASN1_OBJECT *policy;
TS_MSG_IMPRINT *imprint;
X509_ALGOR *md_alg;
ASN1_OCTET_STRING *msg;
const ASN1_INTEGER *nonce;
if (ret)
TS_VERIFY_CTX_cleanup(ret);
else if (!(ret = TS_VERIFY_CTX_new()))
return NULL;
/* Setting flags. */
ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
/* Setting policy. */
if ((policy = TS_REQ_get_policy_id(req)) != NULL) {
if (!(ret->policy = OBJ_dup(policy)))
goto err;
} else
ret->flags &= ~TS_VFY_POLICY;
/* Setting md_alg, imprint and imprint_len. */
imprint = TS_REQ_get_msg_imprint(req);
md_alg = TS_MSG_IMPRINT_get_algo(imprint);
if (!(ret->md_alg = X509_ALGOR_dup(md_alg)))
goto err;
msg = TS_MSG_IMPRINT_get_msg(imprint);
ret->imprint_len = ASN1_STRING_length(msg);
if (!(ret->imprint = malloc(ret->imprint_len)))
goto err;
memcpy(ret->imprint, ASN1_STRING_data(msg), ret->imprint_len);
/* Setting nonce. */
if ((nonce = TS_REQ_get_nonce(req)) != NULL) {
if (!(ret->nonce = ASN1_INTEGER_dup(nonce)))
goto err;
} else
ret->flags &= ~TS_VFY_NONCE;
return ret;
err:
if (ctx)
TS_VERIFY_CTX_cleanup(ctx);
else
TS_VERIFY_CTX_free(ret);
return NULL;
}
LCRYPTO_ALIAS(TS_REQ_to_TS_VERIFY_CTX);