-/* crypto/pkcs7/pk7_lib.c */
-/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
+/*
+ * Copyright 1995-2020 The OpenSSL Project Authors. 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.]
+ * Licensed under the Apache License 2.0 (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 "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/objects.h>
#include <openssl/x509.h>
-#include "internal/asn1_int.h"
+#include "crypto/asn1.h"
+#include "crypto/evp.h"
+#include "crypto/x509.h" /* for sk_X509_add1_cert() */
+#include "pk7_local.h"
+
+DEFINE_STACK_OF(X509_ALGOR)
+DEFINE_STACK_OF(PKCS7_RECIP_INFO)
+DEFINE_STACK_OF(PKCS7_SIGNER_INFO)
long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
{
break;
case PKCS7_OP_GET_DETACHED_SIGNATURE:
if (nid == NID_pkcs7_signed) {
- if (!p7->d.sign || !p7->d.sign->contents->d.ptr)
+ if (p7->d.sign == NULL || p7->d.sign->contents->d.ptr == NULL)
ret = 1;
else
ret = 0;
PKCS7err(PKCS7_F_PKCS7_CTRL, PKCS7_R_UNKNOWN_OPERATION);
ret = 0;
}
- return (ret);
+ return ret;
}
int PKCS7_content_new(PKCS7 *p7, int type)
if (!PKCS7_set_content(p7, ret))
goto err;
- return (1);
+ return 1;
err:
- if (ret != NULL)
- PKCS7_free(ret);
- return (0);
+ PKCS7_free(ret);
+ return 0;
}
int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
i = OBJ_obj2nid(p7->type);
switch (i) {
case NID_pkcs7_signed:
- if (p7->d.sign->contents != NULL)
- PKCS7_free(p7->d.sign->contents);
+ PKCS7_free(p7->d.sign->contents);
p7->d.sign->contents = p7_data;
break;
case NID_pkcs7_digest:
- if (p7->d.digest->contents != NULL)
- PKCS7_free(p7->d.digest->contents);
+ PKCS7_free(p7->d.digest->contents);
p7->d.digest->contents = p7_data;
break;
case NID_pkcs7_data:
PKCS7err(PKCS7_F_PKCS7_SET_CONTENT, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
- return (1);
+ return 1;
err:
- return (0);
+ return 0;
}
int PKCS7_set_type(PKCS7 *p7, int type)
if ((p7->d.signed_and_enveloped = PKCS7_SIGN_ENVELOPE_new())
== NULL)
goto err;
- ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1);
if (!ASN1_INTEGER_set(p7->d.signed_and_enveloped->version, 1))
goto err;
p7->d.signed_and_enveloped->enc_data->content_type
PKCS7err(PKCS7_F_PKCS7_SET_TYPE, PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
goto err;
}
- return (1);
+ return 1;
err:
- return (0);
+ return 0;
}
int PKCS7_set0_type_other(PKCS7 *p7, int type, ASN1_TYPE *other)
break;
default:
PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, PKCS7_R_WRONG_CONTENT_TYPE);
- return (0);
+ return 0;
}
nid = OBJ_obj2nid(psi->digest_alg->algorithm);
}
}
if (!j) { /* we need to add another algorithm */
- if (!(alg = X509_ALGOR_new())
- || !(alg->parameter = ASN1_TYPE_new())) {
+ if ((alg = X509_ALGOR_new()) == NULL
+ || (alg->parameter = ASN1_TYPE_new()) == NULL) {
X509_ALGOR_free(alg);
PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER, ERR_R_MALLOC_FAILURE);
- return (0);
+ return 0;
}
alg->algorithm = OBJ_nid2obj(nid);
alg->parameter->type = V_ASN1_NULL;
}
}
+ psi->ctx = pkcs7_get0_ctx(p7);
if (!sk_PKCS7_SIGNER_INFO_push(signer_sk, psi))
return 0;
- return (1);
+ return 1;
}
int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
break;
default:
PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, PKCS7_R_WRONG_CONTENT_TYPE);
- return (0);
- }
-
- if (*sk == NULL)
- *sk = sk_X509_new_null();
- if (*sk == NULL) {
- PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE, ERR_R_MALLOC_FAILURE);
return 0;
}
- CRYPTO_add(&x509->references, 1, CRYPTO_LOCK_X509);
- if (!sk_X509_push(*sk, x509)) {
- X509_free(x509);
- return 0;
- }
- return (1);
+
+ return X509_add_cert_new(sk, x509, X509_ADD_FLAG_UP_REF);
}
int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
break;
default:
PKCS7err(PKCS7_F_PKCS7_ADD_CRL, PKCS7_R_WRONG_CONTENT_TYPE);
- return (0);
+ return 0;
}
if (*sk == NULL)
return 0;
}
- CRYPTO_add(&crl->references, 1, CRYPTO_LOCK_X509_CRL);
+ X509_CRL_up_ref(crl);
if (!sk_X509_CRL_push(*sk, crl)) {
X509_CRL_free(crl);
return 0;
}
- return (1);
+ return 1;
}
int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
*/
ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
if (!(p7i->issuer_and_serial->serial =
- ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
+ ASN1_INTEGER_dup(X509_get0_serialNumber(x509))))
goto err;
+ /*
+ * TODO(3.0) Adapt for provider-native keys
+ * Meanwhile, we downgrade the key.
+ * #legacy
+ */
+ if (!evp_pkey_downgrade(pkey)) {
+ PKCS7err(PKCS7_F_PKCS7_SIGNER_INFO_SET,
+ PKCS7_R_SIGNING_NOT_SUPPORTED_FOR_THIS_KEY_TYPE);
+ goto err;
+ }
+
/* lets keep the pkey around for a while */
- CRYPTO_add(&pkey->references, 1, CRYPTO_LOCK_EVP_PKEY);
+ EVP_PKEY_up_ref(pkey);
p7i->pkey = pkey;
/* Set the algorithms */
goto err;
if (!PKCS7_add_signer(p7, si))
goto err;
- return (si);
+ return si;
err:
- if (si)
- PKCS7_SIGNER_INFO_free(si);
- return (NULL);
+ PKCS7_SIGNER_INFO_free(si);
+ return NULL;
+}
+
+static STACK_OF(X509) *pkcs7_get_signer_certs(const PKCS7 *p7)
+{
+ if (PKCS7_type_is_signed(p7))
+ return p7->d.sign->cert;
+ if (PKCS7_type_is_signedAndEnveloped(p7))
+ return p7->d.signed_and_enveloped->cert;
+ return NULL;
+}
+
+static STACK_OF(PKCS7_RECIP_INFO) *pkcs7_get_recipient_info(const PKCS7 *p7)
+{
+ if (PKCS7_type_is_signedAndEnveloped(p7))
+ return p7->d.signed_and_enveloped->recipientinfo;
+ if (PKCS7_type_is_enveloped(p7))
+ return p7->d.enveloped->recipientinfo;
+ return NULL;
+}
+
+/*
+ * Set up the library context into any loaded structure that needs it.
+ * i.e loaded X509 objects.
+ */
+void pkcs7_resolve_libctx(PKCS7 *p7)
+{
+ int i;
+ const PKCS7_CTX *ctx = pkcs7_get0_ctx(p7);
+ STACK_OF(PKCS7_RECIP_INFO) *rinfos = pkcs7_get_recipient_info(p7);
+ STACK_OF(PKCS7_SIGNER_INFO) *sinfos = PKCS7_get_signer_info(p7);
+ STACK_OF(X509) *certs = pkcs7_get_signer_certs(p7);
+
+ if (ctx == NULL)
+ return;
+
+ for (i = 0; i < sk_X509_num(certs); i++)
+ x509_set0_libctx(sk_X509_value(certs, i), ctx->libctx, ctx->propq);
+
+ for (i = 0; i < sk_PKCS7_RECIP_INFO_num(rinfos); i++) {
+ PKCS7_RECIP_INFO *ri = sk_PKCS7_RECIP_INFO_value(rinfos, i);
+
+ x509_set0_libctx(ri->cert, ctx->libctx, ctx->propq);
+ }
+
+ for (i = 0; i < sk_PKCS7_SIGNER_INFO_num(sinfos); i++) {
+ PKCS7_SIGNER_INFO *si = sk_PKCS7_SIGNER_INFO_value(sinfos, i);
+
+ if (si != NULL)
+ si->ctx = ctx;
+ }
+}
+
+const PKCS7_CTX *pkcs7_get0_ctx(const PKCS7 *p7)
+{
+ return p7 != NULL ? &p7->ctx : NULL;
+}
+
+OPENSSL_CTX *pkcs7_ctx_get0_libctx(const PKCS7_CTX *ctx)
+{
+ return ctx != NULL ? ctx->libctx : NULL;
+}
+const char *pkcs7_ctx_get0_propq(const PKCS7_CTX *ctx)
+{
+ return ctx != NULL ? ctx->propq : NULL;
}
int PKCS7_set_digest(PKCS7 *p7, const EVP_MD *md)
{
if (PKCS7_type_is_digest(p7)) {
- if (!(p7->d.digest->md->parameter = ASN1_TYPE_new())) {
+ if ((p7->d.digest->md->parameter = ASN1_TYPE_new()) == NULL) {
PKCS7err(PKCS7_F_PKCS7_SET_DIGEST, ERR_R_MALLOC_FAILURE);
return 0;
}
if (p7 == NULL || p7->d.ptr == NULL)
return NULL;
if (PKCS7_type_is_signed(p7)) {
- return (p7->d.sign->signer_info);
+ return p7->d.sign->signer_info;
} else if (PKCS7_type_is_signedAndEnveloped(p7)) {
- return (p7->d.signed_and_enveloped->signer_info);
+ return p7->d.signed_and_enveloped->signer_info;
} else
- return (NULL);
+ return NULL;
}
void PKCS7_SIGNER_INFO_get0_algs(PKCS7_SIGNER_INFO *si, EVP_PKEY **pk,
goto err;
if (!PKCS7_add_recipient_info(p7, ri))
goto err;
+ ri->ctx = pkcs7_get0_ctx(p7);
return ri;
err:
- if (ri)
- PKCS7_RECIP_INFO_free(ri);
+ PKCS7_RECIP_INFO_free(ri);
return NULL;
}
default:
PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,
PKCS7_R_WRONG_CONTENT_TYPE);
- return (0);
+ return 0;
}
if (!sk_PKCS7_RECIP_INFO_push(sk, ri))
return 0;
- return (1);
+ return 1;
}
int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
if (!(p7i->issuer_and_serial->serial =
- ASN1_INTEGER_dup(X509_get_serialNumber(x509))))
+ ASN1_INTEGER_dup(X509_get0_serialNumber(x509))))
return 0;
- pkey = X509_get_pubkey(x509);
+ pkey = X509_get0_pubkey(x509);
if (!pkey || !pkey->ameth || !pkey->ameth->pkey_ctrl) {
PKCS7err(PKCS7_F_PKCS7_RECIP_INFO_SET,
goto err;
}
- EVP_PKEY_free(pkey);
-
- CRYPTO_add(&x509->references, 1, CRYPTO_LOCK_X509);
+ X509_up_ref(x509);
p7i->cert = x509;
return 1;
err:
- EVP_PKEY_free(pkey);
return 0;
}
si->
issuer_and_serial->serial));
else
- return (NULL);
+ return NULL;
}
int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
break;
default:
PKCS7err(PKCS7_F_PKCS7_SET_CIPHER, PKCS7_R_WRONG_CONTENT_TYPE);
- return (0);
+ return 0;
}
/* Check cipher OID exists and has data in it */
if (i == NID_undef) {
PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,
PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
- return (0);
+ return 0;
}
ec->cipher = cipher;
+ ec->ctx = pkcs7_get0_ctx(p7);
return 1;
}
+/* unfortunately cannot constify BIO_new_NDEF() due to this and CMS_stream() */
int PKCS7_stream(unsigned char ***boundary, PKCS7 *p7)
{
ASN1_OCTET_STRING *os = NULL;
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